tft lcd ppt price

These wide viewing angle Small Format TFT LCDs with optional touch are industrial grade and cost competitive. Therefore these products are a popular display choice to integrate in many projects.

Using only high-tech factories that we partner with, we provide clients with the service of designing liquid crystal display panel (LCD) and liquid crystal display module(LCM), and is committed to the customized service, R&D, sales, after-sales service of display products. Our factories have hundreds of engineers focusing on creating the highest quality displays including monochrome LCD (TN, STN), colour LCD (CSTN and TFT), Custom LCD’s, LCD module (both COG* and COB*) which are widely used in mobile phones and many other applications.

Our state of the art factory produces High Resolution TFT glass panel cells, has TN, HTN, STN and TFT technologies for LCD panels. The Factory has class 1000 clean rooms, high accuracy bonding, pre bonding and heat seal machinery, many production lines specifically for TFT production, OCA and OCF bonding machines,  In-House LCD glass cleansing process, output thousands of pieces per month.

Touchscreen overlay cover glass only available (so you do not have to purchase the display)These displays can come with: touchscreen components, touchscreen overlays, industrial touch screen,Wide LCDs, LED TFTs, and TFT Colour displays.

Other options are: LCD drivers, LVDS Touchscreen displays, automotive LCD Display, TFT high resolution screens, TFT LCD capacitive touchscreens, TFT capacitive touchscreens, high brightness LCDs, Letterbox Displays, small VGA Displays, LCD panel without backlights,Variations of our Small Format TFT LCDs include: TFT Display touchscreens, TFT IPS Display, monochrome displays, TFT or LCD, embedded components, LCD components, TFT Drivers, industrial range of Displays,

CDS also offers industrial TFT LCDs,Our displays are used in: touch screen vending machines, automotive touch screen displays, vending machine display panel, Touch screen vending, TFT Automotive, LCD Dislay panel kits, Touch screen TFT monitors, LCD Display components, LCD Screen components,  and POS LCD Displays.As you can see from the tables above we have sizes including:  8.8 inches, 4.3 inch LCD Display, 10.1″ TFT LCD,  3.5 inch LCD Display, 4.3 inch display, 3.5 inch TFT LCD Display, 4.3″ screen, 7 inch LCD panel, 3 inch LCD Displays, and 4.3″ TFT LCDs as well as other small LCD Display screens.We have options on and equivalents to the following displays and TFT panel manufacturers:  Raystar, Kingtech LCD, Digital View, OLED modules, OLED products, Powertip LCD Displays, Data Vision LCD, LG TFT Display, Tianma NLT, Powertip Displays, Mitsubishi LCD Displays, DMC components, Kyocera LCDs, NLT Technologies Ltd, Sharp LCD TFT modules, LCD manufacturers in the USA, PMOLED Displays, innolux display corp, Industrial touchscreens, A Grade TFT LCD Displays, Panoramic TFT Displays, Samsung TFT Displays, Touchscreen components, Transparent TFT Displays, Touchscreen components,  TFT LCD controllers, as well as other TFT LCD manufacturers and Liquid crystal Display manufacturers.

CDS offers the widest range of displays and touchscreens including Abon touchscreens, Ampire LCD distributor, alternative Prisma interface baord supplier including Prisma iiia, Solomon Goldentek, Panasonic TFT, Winmate display, USB IO, and Apollo monitors

Our range includes AMOLED, circular displays, circular monitors, circular screens, circular TFT screens, round displays, Round TFT LCD displays, TFT AMOLEDs, TFT and IPS, TFT display interface microcontroller, TFT LCD or AMOLED, TFT LCD super AMOLED, WXGA TFT Displays, and WXGA TFT screens

As well as large format displays CDS also offers DSI TFT Display, large monochrome LCD displays, mono displays, mono OLEDC displays, mono TFT LCDs, monochrome displays, PCT Touchscreens, projected capacitive touch PCT technology, sq monitors and squid IDS.

CDS added a number of additional controller boards nd accessories which include TFT adaptor boards, TFT boards, TFT display controller boards, USB c LCD controller, USB touch kit, resistive touch screen, TFT accessories com, LCD controller board, LCD controller board USB c, LCD controller board, HDMI to MiPi DSI board, HDMI to MiPi DSI bridge, HDMI to MiPi LCD controller board, EDP adaptor bard, elite C microcontroller, Displaylink DL 3000 .

Whether it be bar type LCDs or any of CDS display solutions or many TFT displays we can help with comparing mipi dsi vs lvds interfces or mipi to edp wch can include use on pos shelf displays and rgb epaper for example.

The statistic shows the supply and demand for large thin-film transistor liquid crystal displays (TFT LCD) worldwide from 2015 to 2021. Demand for large TFT LCDs is expected to rise to around 217 million square meters in 2021.Read moreLarge thin-film transistor liquid crystal display (TFT LCD) supply and demand worldwide from 2015 to 2021(in million square meters)CharacteristicDemandCapacity---

Statista. (July 19, 2018). Large thin-film transistor liquid crystal display (TFT LCD) supply and demand worldwide from 2015 to 2021 (in million square meters) [Graph]. In Statista. Retrieved January 01, 2023, from https://www.statista.com/statistics/883811/worldwide-tft-lcd-display-supply-demand/

Statista. "Large thin-film transistor liquid crystal display (TFT LCD) supply and demand worldwide from 2015 to 2021 (in million square meters)." Chart. July 19, 2018. Statista. Accessed January 01, 2023. https://www.statista.com/statistics/883811/worldwide-tft-lcd-display-supply-demand/

Statista. (2018). Large thin-film transistor liquid crystal display (TFT LCD) supply and demand worldwide from 2015 to 2021 (in million square meters). Statista. Statista Inc.. Accessed: January 01, 2023. https://www.statista.com/statistics/883811/worldwide-tft-lcd-display-supply-demand/

Statista. "Large Thin-film Transistor Liquid Crystal Display (Tft Lcd) Supply and Demand Worldwide from 2015 to 2021 (in Million Square Meters)." Statista, Statista Inc., 19 Jul 2018, https://www.statista.com/statistics/883811/worldwide-tft-lcd-display-supply-demand/

Statista, Large thin-film transistor liquid crystal display (TFT LCD) supply and demand worldwide from 2015 to 2021 (in million square meters) Statista, https://www.statista.com/statistics/883811/worldwide-tft-lcd-display-supply-demand/ (last visited January 01, 2023)

Portability: DLP projectors tend to be smaller and easier to transport given one chip versus LCD’s 3 panels. DLPs using LED or pico technology are even more portable and can connect to smart phones, tablets and other mobile devices.

LCD projectors use 3 LCD technology systems with the same LCD displays as those used to create images in watches and other electronic devices. This system combines three liquid crystal displays, where an image is created in a multi-step process. A light source provides a beam of white light, which is passed to three mirrors (or dichroic mirrors) specially shaped to reflect only a certain wavelength of light.

Here the mirrors reflect red, blue, and green wavelengths. Each colored light beam is fed to an LCD panel, which receives an electrical signal. The signal instructs the panel how to arrange the pixels in the display to create the image. The same image is created by the three LCD panels, but each with different hues due to the colored light through the panel. The images then combine in a prism, resulting in a single image with up to 16.7 million colors. Finally, the image is passed through the lens for projection onto a screen.

LCD projectors use transmissive LCD, which allows light to pass through the liquid crystal. In LCD projectors there are always three LCD panels, and they are always light transmissive devices rather than reflective or direct view displays

Being light-source agnostic, DLP technology can effectively use a variety of light sources. Typically, the main DLP light source is a replaceable high-pressure xenon arc lamp unit. Alternatively, ultra-small or pico DLP projectors use high-power LEDs or lasers. For LCD projectors, Metal-halide lamps are used given their outputting an ideal color temperature and a broad spectrum of color. Smaller metal-halide lamps make LCD projectors smaller, hence more portable than most other projection systems.

Depending on the quality and functionality, both DLP as well as LCD projectors can cost anywhere from $300 to well above $1000. Here are two helpful shopping links for projectors on Amazon.com:

A thin-film transistor (TFT) is a special type of field-effect transistor (FET) where the transistor is thin relative to the plane of the device.substrate. A common substrate is glass, because the traditional application of TFTs is in liquid-crystal displays (LCDs). This differs from the conventional bulk metal oxide field effect transistor (MOSFET), where the semiconductor material typically is the substrate, such as a silicon wafer.

TFTs can be fabricated with a wide variety of semiconductor materials. Because it is naturally abundant and well understood, amorphous or polycrystalline silicon was historically used as the semiconductor layer. However, because of the low mobility of amorphous siliconcadmium selenide,metal oxides such as indium gallium zinc oxide (IGZO) or zinc oxide,organic semiconductors,carbon nanotubes,metal halide perovskites.

Because TFTs are grown on inert substrates, rather than on wafers, the semiconductor must be deposited in a dedicated process. A variety of techniques are used to deposit semiconductors in TFTs. These include chemical vapor deposition (CVD), atomic layer deposition (ALD), and sputtering. The semiconductor can also be deposited from solution,printing

Some wide band gap semiconductors, most notable metal oxides, are optically transparent.electrodes, such as indium tin oxide (ITO), some TFT devices can be designed to be completely optically transparent.head-up displays (such as on a car windshield).The first solution-processed TTFTs, based on zinc oxide, were reported in 2003 by researchers at Oregon State University.Universidade Nova de Lisboa has produced the world"s first completely transparent TFT at room temperature.

The best known application of thin-film transistors is in TFT LCDs, an implementation of liquid-crystal display technology. Transistors are embedded within the panel itself, reducing crosstalk between pixels and improving image stability.

As of 2008LCD TVs and monitors use this technology. TFT panels are frequently used in digital radiography applications in general radiography. A TFT is used in both direct and indirect capturemedical radiography.

The most beneficial aspect of TFT technology is its use of a separate transistor for each pixel on the display. Because each transistor is small, the amount of charge needed to control it is also small. This allows for very fast re-drawing of the display.

In February 1957, John Wallmark of RCA filed a patent for a thin film MOSFET in which germanium monoxide was used as a gate dielectric. Paul K. Weimer, also of RCA implemented Wallmark"s ideas and developed the thin-film transistor (TFT) in 1962, a type of MOSFET distinct from the standard bulk MOSFET. It was made with thin films of cadmium selenide and cadmium sulfide. In 1966, T.P. Brody and H.E. Kunig at Westinghouse Electric fabricated indium arsenide (InAs) MOS TFTs in both depletion and enhancement modes.

The idea of a TFT-based liquid-crystal display (LCD) was conceived by Bernard J. Lechner of RCA Laboratories in 1968.dynamic scattering LCD that used standard discrete MOSFETs, as TFT performance was not adequate at the time.T. Peter Brody, J. A. Asars and G. D. Dixon at Westinghouse Research Laboratories developed a CdSe (cadmium selenide) TFT, which they used to demonstrate the first CdSe thin-film-transistor liquid-crystal display (TFT LCD).electroluminescence (EL) in 1973, using CdSe.active-matrix liquid-crystal display (AM LCD) using CdSe in 1974, and then Brody coined the term "active matrix" in 1975.

A breakthrough in TFT research came with the development of the amorphous silicon (a-Si) TFT by P.G. le Comber, W.E. Spear and A. Ghaith at the University of Dundee in 1979. They reported the first functional TFT made from hydrogenated a-Si with a silicon nitride gate dielectric layer.research and development (R&D) of AM LCD panels based on a-Si TFTs in Japan.

By 1982, Pocket TVs based on AM LCD technology were developed in Japan.Fujitsu"s S. Kawai fabricated an a-Si dot-matrix display, and Canon"s Y. Okubo fabricated a-Si twisted nematic (TN) and guest-host LCD panels. In 1983, Toshiba"s K. Suzuki produced a-Si TFT arrays compatible with CMOS integrated circuits (ICs), Canon"s M. Sugata fabricated an a-Si color LCD panel, and a joint Sanyo and Sanritsu team including Mitsuhiro Yamasaki, S. Suhibuchi and Y. Sasaki fabricated a 3-inch a-SI color LCD TV.

The first commercial TFT-based AM LCD product was the 2.1-inch Epson ET-10Hitachi research team led by Akio Mimura demonstrated a low-temperature polycrystalline silicon (LTPS) process for fabricating n-channel TFTs on a silicon-on-insulator (SOI), at a relatively low temperature of 200°C.Hosiden research team led by T. Sunata in 1986 used a-Si TFTs to develop a 7-inch color AM LCD panel,Apple Computers.Sharp research team led by engineer T. Nagayasu used hydrogenated a-Si TFTs to demonstrate a 14-inch full-color LCD display,electronics industry that LCD would eventually replace cathode-ray tube (CRT) as the standard television display technology.notebook PCs.IBM Japan introduced a 12.1-inch color SVGA panel for the first commercial color laptop by IBM.

TFTs can also be made out of indium gallium zinc oxide (IGZO). TFT-LCDs with IGZO transistors first showed up in 2012, and were first manufactured by Sharp Corporation. IGZO allows for higher refresh rates and lower power consumption.polyimide substrate.

Kawamoto, H. (2012). "The Inventors of TFT Active-Matrix LCD Receive the 2011 IEEE Nishizawa Medal". Journal of Display Technology. 8 (1): 3–4. Bibcode:2012JDisT...8....3K. doi:10.1109/JDT.2011.2177740. ISSN 1551-319X.

Morozumi, Shinji; Oguchi, Kouichi (12 October 1982). "Current Status of LCD-TV Development in Japan". Molecular Crystals and Liquid Crystals. 94 (1–2): 43–59. doi:10.1080/00268948308084246. ISSN 0026-8941.

Mimura, Akio; Oohayashi, M.; Ohue, M.; Ohwada, J.; Hosokawa, Y. (1986). "SOI TFT"s with directly contacted ITO". IEEE Electron Device Letters. 7 (2): 134–6. Bibcode:1986IEDL....7..134M. doi:10.1109/EDL.1986.26319. ISSN 0741-3106. S2CID 36089445.

Sunata, T.; Yukawa, T.; Miyake, K.; Matsushita, Y.; Murakami, Y.; Ugai, Y.; Tamamura, J.; Aoki, S. (1986). "A large-area high-resolution active-matrix color LCD addressed by a-Si TFT"s". 33 (8): 1212–1217. Bibcode:1986ITED...33.1212S. doi:10.1109/T-ED.1986.22644. ISSN 0018-9383. S2CID 44190988.

Sunata, T.; Miyake, K.; Yasui, M.; Murakami, Y.; Ugai, Y.; Tamamura, J.; Aoki, S. (1986). "A 640 × 400 pixel active-matrix LCD using a-Si TFT"s". IEEE Transactions on Electron Devices. 33 (8): 1218–21. Bibcode:1986ITED...33.1218S. doi:10.1109/T-ED.1986.22645. ISSN 0018-9383. S2CID 6356531.

Nagayasu, T.; Oketani, T.; Hirobe, T.; Kato, H.; Mizushima, S.; Take, H.; Yano, K.; Hijikigawa, M.; Washizuka, I. (October 1988). "A 14-in.-diagonal full-color a-Si TFT LCD". Conference Record of the 1988 International Display Research Conference: 56–58. doi:10.1109/DISPL.1988.11274. S2CID 20817375.

2010 2012 1200 DMIPS, Superscalar 1200 DMIPS, Performance Automotive & Industrial, 65nm 600µA/MHz, 1.5µA standby Automotive, 40nm 500µA/MHz, 35µA deep standby 500 DMIPS, Low Power 32-bit 165 DMIPS, FPU, DSC Automotive & Industrial, 90nm 600µA/MHz, 1.5µA standby Industrial, 40nm 200µA/MHz, 0.3µA deep standby 165 DMIPS, FPU, DSC Industrial, 90nm 200µA/MHz, 1.6µA deep standby Embedded Security, ASSP Industrial, 90nm 1mA/MHz, 100µA standby 25 DMIPS, Low Power Those of you who have attended the last DevCon in 2010, the left side of this slide should look familiar. In 2010, as a result of the merger between Renesas Technology and NEC Electronics, we started offering MCU solutions based on these five cores. The R8C and 78K were mainly focusing on low end 8/16 bit applications in both automotive and industrial applications,. The RX with 32 bit CISC core was mainly offering solutions for Industrial and consumer applications.  The high-end V850 and SH cores with 32-bit RISC architecture were very successful in high end automotive and industrial applications. Within 6 months after the merger, we launched a brand new 16-bit product family named RL78, combining the low power flash technology and the CPU core from NEC’s 78K product line and innovative peripherals from Renesas’ R8C product family. The RL78 family is a great example of the synergy effect of this merger. The RL78 is now our main focus product line for cost sensitive low power applications. It consumes only 144uA/MHz power in active mode and only 0.2uA in standby mode. With up to 44DMIPS throughput, it offers much higher performance compared to any other 8/16 microcontrollers in the market place. The RX family continues to be our flagship 32-bit family for Industrial and consumer applications. With 100 MHz single cycle flash, 1.65DMIPS/MHz throughput and packed with connectivity peripherals it  is ideal for digital signal controller applications. Since its introduction in 2009, we are rapidly expanding the RX product line. Now we have more than 500 different RX MCUs covering from 32KB to 2MB flash memory options. Similar to the RX, we have recently announced the launch of our next generation high-end 32 bit microcontroller architecture for automotive applications. The new family is called RH850 and provides a next-generation migration path to automotive customers currently using V850 or SH in their application. For Industrial customers currently using V850 or SH, the migration path is the RX product family. Very soon we will launch a 240MHz RX product line which can cover the need of Industrial customers requiring more than 100MHz performance. So, in summary, from 2013 and beyond, we will mainly be focusing on the three CPU cores, RL78, RX, and RH850, to cover the broad spectrum of the industrial and automotive application space, and we will continue to support legacy architectures like R8C, 78K, SH, and V850 for existing customers. In addition to the above mentioned microcontroller families, we do have an ASSP family called R-Secure which offers a wide range of products for embedded security applications. In this presentation I will mainly focusing on R-Secure product line. Industrial & Automotive, 150nm 190µA/MHz, 0.3µA standby 44 DMIPS, True Low Power 8/16-bit Industrial & Automotive, 130nm 144µA/MHz, 0.2µA standby 10 DMIPS, Capacitive Touch Industrial & Automotive, 130nm 350µA/MHz, 1µA standby Wide Format LCDs

Here’s a picture of a traditional thermostat with segment LCD display. Notice that the user interface is a number of mechanical buttons placed around the device. Typically this model is programmable where you can set different temperature ranges for different days in the week. The unit can control both the air conditioner and heater. The latest models that enable the smart society include a touch screen over a TFT LCD color screen. With a touch screen interface, you can layer various menus and provide more help to the customers on the screen so they don’t need to reference a paper manual. With added support for Wi-Fi, you can add communication with a tablet computer. In fact, you might have multiple thermostats so you can view status as well as change settings from the tablet to control all thermostats at once. Once you are on an IP network and connected to the Internet, you can also access status from a cell phone or tablet via 3G or 4G technology allowing you to control everything from a remote location.

LCD Touchscreen Technology for Embedded Systems LCD Controllers Touchscreen Technology Standards for Embedded Graphics Software Development Tools LCD Touchscreen Design Options Q&A Each shows a new agenda item

What are the key LCD Touchscreen embedded applications? The smart thermostat is probably one of the higher volume applications However, touchscreens are showing up on all kinds of new devices like a spa controller A server machine with a small status display Golf carts, even putters that teach you how to putt better Vending Machines fitness machines Motor cycle accessories Look for today’s LCD segment applications which will migrate to tomorrows LCD TFT applications. This is a growing requirement and a perfect way to differentiate your products. Today’s LCD Segment Applications Will be Tomorrow’s LCD TFT Touchscreen Applications

Graphics Development Experience Responsive Software Free Software Intuitive No TFT Expertise Backlighting Solution for LCD Resistive or Capacitive Touch? Visual Feedback Touch buttons Direct Manipulation High Resolution Quick Prototypes Adding a Touchscreen is not without some major challenges, here are a few of them Some key ones include Most embedded designers have little or no experience with TFT technology, this provides a substantial learning curve for developing these solutions There are a wide range of touchscreens, major categories include resistive or capacitive touch, these can be tricky to use because they vary in performance depending on temperature and humidity Graphics development is new and requires experience in understand GUI development TFT Screen hardware interfaces are different for every panel. The lack of standards make this a challenge. Typically lifecycles for TFT screens are much shorter, maybe 2-3 years, vs 10 years for typically MCU products, so changes need to be made as products go EOL Lifecycle Management for TFT Screens is Challenging Smooth Transitions Low Cost No Stylus Required Flick to Scroll

Questions? Name at Least 3 Top Challenges in Adding a TFT Color Display to an Embedded System TFT Screen Life Cycle Management is Challenging Many Touchscreen Choices – Resistive and Capacitive Graphics Development Experience No TFT Expertise Quick Prototypes Backlighting Click through each question and answer

STN Super Twisted Nematic TFT Active Thin Film Transistor OLED Organic Light Emitting Diode Response Time ~100ms ~10ms ~0.01ms Contrast Ratio ~10:1 ~100:1 ~1000:1 Viewing Angle +/- 15o +/- 75o +/- 85o Note Looks cheap Good for motion No backlight rqd, but currently has lifetime limitations Cost $ $$$ $$$$$ Let’s begin by taking a look at 3 main LCD technologies that are popular within embedded applications. First is STN. It’s a mature technology that’s very cheap, but unfortunately also looks very cheap. Passive STN is very slow with an animation rate limited to about 10 frames per second. STN has poor contrast ratio, and it has a very narrow viewing angle. STN is available in both color an monochrome, and quite often an STN module is driven by a serial connection to an MCU. Next is TFT. Here, the response time is very good and it supports motion well. The contrast ratio and viewing angle is also very good. There are hundreds of sources of TFT panels, and cost is dropping rapidly. Finally there is OLED. This is a relatively new technology with some very compelling characteristics like ultra-fast response time, excellent contrast, a near perfect viewing angle range, and ultra low power consumption compared to TFT. On top of this, OLED panels need no backlight, and they have the potential to be manufactured very inexpensively and in unusual shapes (like flexible display panels). However, OLED technology in today’s form has a limited life-span compared to TFT (some say 1/3 the life of TFT), and is very expensive (at least 2x that of TFT, more for large panels). As OLED technology matures, it’s cost is expected to drop, and it’s short lifetime issues solved. So today, the best all around technology for embedded solutions in terms of price, visual impact, performance, and availability is TFT. You can see that last year TFT accounted for 80% of the total addressable market for LCD panels. Best choice

Pixel WxH Diagonal Size QVGA – Quarter Video Graphics Array 320x240 3.5” WQVGA – Wide Quarter VGA 480x272 4.3” VGA - Video Graphics Array 640x480 5.7” WVGA – Wide VGA 800x480 7.0” SVGA – Super VGA 800x600 10.4” XGA – eXtended Graphics Array 1024x768 12.1”, 15” WXGA – Wide Extended Graphics Array 1280x800 12.1” Here are some of the most common resolutions used with Embedded TFT Screens. The resolutions primarily come from the PC industry with some modifications through the addition of new letters. They are express first by the number of pixels in width as well by the number of pixels in height. For example VGA is 640 pixels by 480 pixels. The diagonal size show is also what is typically found in the industry meaning that there will be multiple suppliers that offer these products. Here are some of the most popular configurations QVGA quarter VGA 320x ” diagonal WQVGA – wide quarter VGA 480x ” diagonal WVGA – wide VGA 800x480 in a 7” diagonal Most Common for Embedded Systems up to 7”

RGB bpp 256 Colors RGB565 16bpp 64K Colors Storage for colors for each pixel is in RGB or red green blue format and expressed in bits per pixel (bpp) For example RGB 332 is 8bbp meaning 3 red, 3 green and 2 blue This forms 256 distinct color taking 1 byte of storage, since each bpp takes 1 bit of storage RGB565 is 16 bpp color with 5 red, 6 green and 5 blue This gives 64K colors and is know has high color in the PC industry 2bytes are required to store the 16 bits RGB888 is 24 bit color 16.7M colors can be displayed and are known as true color because this is as many colors that the human eye can distinguish Although it would only take 3 Bytes to store this, typically 4 Bytes are used and the top byte is discarded. Notice the difference between 16 and 24 bit is subtle Traditional digital signaling TTL/CMOS is 1 signal per color between the LCD and LCD controller Newer signaling called LVDS (differential signaling) reduces the number of signal levels reduces cross talk so lengths can be longer. This is growing in certain industries especially smart phones and tablets, it hasn’t really hit the embedded space yet. RGB888 24bpp 16.7M Colors

A Frame Buffer is a Portion of Memory Reserved to Hold a Complete Bit Mapped Image Sent to LCD Screen Calculation: (Width # Pixels)*(Height # Pixels)*(Bytes for Color Depth) Example: QVGA screen – 8bpp color (320*240*1byte) = 76.8 K Bytes Typical Screen Refresh 60Hz or 76.8KB*60=2.8MB/s Example: WVGA Screen 24bpp Color (800*480*4) = M bytes Typical Screen Refresh 60Hz or 1.536MB*60=92MB/s Now that you understand the basics of resolution and color depths, we can calculate the frame buffer size. A frame buffer is a portion of memory that can hold one complete bit mapped image that is sent to the LCD. To calculate this you multiply the width x height x bytes for color depth Here’s an example using QVGA with 8 bit color, a single frame buffer is 76.8K Bytes. If you consider a typical refresh rate of 60Hz, and you need to change the entire screen for each refresh, the amount of data you need to move is 2.7MB/s Here’s an example for WVGA with 24 bpp color A single frame buffer is 1.536MB in size Typical refresh rate of 60Hz gives you a max of 92MB/s of data. The key here is to look at the difference in the amount of data that you need to move with the two resolutions. It might seem like an easy task to go from QVGA to WVGA, but the performance requirements are dramatically different due to the amount of data you need to move/process from one location to another. Of course there are tricks that you can play to optimize the number of changes like just editing portions of the screen that change, but when you refresh the entire screen, you need to change the entire frame buffer. Keep this in mind as you select a particular video controller product.

MCU Chip on Glass (COG) QVGA SPI Flash RAM MCU Direct Drive LCD To VGA SPI Flash RAM MCU LCDC There are three major architectures used for LCD Controllers Chip on Glass – In this configuration, the controller is actually a part of the LCD TFT screen hardware as well as the frame buffer memory. The MCU needs to update the controller and frame buffer with the appropriate graphics info typically via a parallel bus. This is typical of LCD panels support QVGA or lower resolutions. In the second configuration called Direct Drive LCD, the MCU handles a number of the signals required to support the LCD panel and updates the frame buffer to display the appropriate information on the screen. This is the architecture used for by our RX products where a special external bus exists that requires little CPU intervention. You can support up to VGA resolution with this architecture With the final configuration, the MCU/MPU includes it’s own dedicated LCD Controller. This is typically required for resolutions higher than VGA as well as more advanced graphics like 2D or 3D. LCD Controller VGA and Higher

Cost Efficient TFT LCD Solution for Resolutions Up to WQVGA Low CPU Cycles due to External DMA Controller Directly Drives the TFT LCD Small Footprint - Only 3 Chips – MCU + Frame Buffer + SPI Flash Free Graphics tools from Renesas and RX DDLCD Solution Kits Extensive Hardware and Software Partners to Speed up the Development Process for Any Customer Here’s a brief summary of the RX Direct Drive LCD offering It provides cost efficient solutions for resolutions up to WQVGA Low CPU cycles are required due to a External DMA Controller that directly drives the LCD The foot print is small, can be 2 chips or 3 chips depending on if you use just the MCU and frame buffer or if you add a SPI flash for additional graphics Free graphics tools are included A wealth of hardware and software partners are available to speed up your development process

Security Panels/Home Automation Pools and Solar Panels Here are just a few of the applications for RX DDLCD. In reality, there are many more applications that are suitable for a simple LCD TFT and the market continues to grow. Controller for Pool and Spa temps as well as other monitors Security panels used in home automation and other markets Portable devices in particular medical equipment Small appliances The sweet spot is applications with static pictures and light animation if you want the RX to handle the LCD plus a other functions. Look for products using segment LCDs today and migrate them to TFT LCDs Portable Medical Equipment Small Appliances Static Pictures with Light Animation

SH7269 Great Price/Performance TFT LCD Controller Supporting up to WVGA (800x480) Resolution No need for External RAM with Large High Performance 2.5MB On-chip RAM Improved speed and smaller size with 2D Acceleration Based on OpenVG 1.1 Standards Less RAM required with Support for Supports QSPI and Execute in Place for Program Memory and Graphics images Hardware and Software partners to Speed up the Development Process For the SH-2A family we offer the SH7269 This offers great price/performance for resolutions up to WVGA There are no requirements for external RAM due to support for a large 2.5MB onchip RAM. This can be used for your frame buffer requirements Speed is improved with 2D acceleration based on the OpenVG 1.1 standard No external RAM is required for program execution since the QSPI supports Execute in Place Hardware and software partners are fully available to speed up your development.

Navigation Appliances The SH7269 provides an increase in performance and is suitable for 2D applications Today you see these first on appliances like refrigerators Navigation devices that have multiple layers of graphics, also backup camera applications where graphics are layered over a video POS terminals and new POS devices that interact directly with customers Medical instruments that need to show motion in graphics and charts Essentially anything with 2D where a bit map needs to move across a screen – motion graphics. Look to existing TFT designs that use QVGA touchscreen that need to upgrade to WVGA with more functionality. POS Terminals, Kiosks Medical Instruments 2D Applications That Require Motion Graphics

LCD TFT Screens for Embedded Systems LCD TFT Screens with Touchscreens Here is a list that references some suppliers First here are LCD TFT screen vendors that offer TFT screens with touch embedded. These manufactures also tend to offer longer product lifecycles than companies that cater to the consumer markets. The are many others but these are ones that we have worked with for various embedded designs Also there are companies that integrate various LCD panels with touch panels. They are helpful they can smooth over the supplier transition issues by providing a platform that is consistent as products go EOL or evolve, yet can provide the same interface layout interface to you as a customer.

Rapid GUI Development Your Company Images and Storyboard GUI Development on PC Downloaded to LCD TFT Platform One of the biggest challenges in adding a TFT LCD is the ability to quickly prototype a solution to get project approval. There are some new tools that are just coming on to the market that allow for rapid GUI development The process starts by taking some of your company product logos and a storyboard Then developing a GUI on your PCD Finally downloading this to the target LCD TFT platform Traditionally this took months but new tools shorten this to Days Serious Integrated is one company that offers this solution From Months to Days!!!

Evaluation Review Demos Refine Requirements Prototype Review Dev Platform Quick Graphics Proto Hardware Choices TFT Screens Touchscreens Semiconductors CHALLENGING Here’s a summary of the LCD TFT development process First start by evaluating some demo platforms that existing on the market today, you can contact your local Renesas sales rep for information on the latest kits available. After reviewing these demo kits you can start to refine your price/performance requirements for these solutions. Next you enter the prototype stage, this might even be before the project is actually approved. However, you need to get approval for this project based on some simple designs. The challenge here is that the current learning curve can be 6m-1yr just to evaluate a good prototype so Next review your various hardware choices like TFT screens, touchscreens and LCD controllers Finally, review your various software choices; OS, Graphic Design and Activation software are the main areas you need to understand before starting a new design. Let’s go into more detail on each of these categories Software Choices OS Graphic Design Activation Software

Buy A Complete HW Module Under 1K EAU, LCD Module is Best No LCD Experience Work with a Consulting Firm On HW 1K-10K EAU, LCDs in Multiple Projects Building LCD Expertise Hardware development – Make or Buy Decisions It is common for the typical design engineer to want to develop their own hardware. Resist this temptation and at a minimum evaluation what exists on the market today and then consider your own hardware development. Here are some guidelines Buy a complete hw module - if your estimated annual usage is under 1K, then just purchase a complete solution module and embed it into your device – straight forward – even if you go and try to purchase LCD touch panels, the MOQ could be over 1K. Work with a consulting firm on HW - Your quantities are 1-10K and you plan to develop some LCD expertise since this is the first of many programs. By working with a HW consulting firm, you can get your prototypes developed quickly with minimal support issues. You can move to your own designs when you get to production. Develop a complete HW solutionFor volumes over 10K, you will be able to lower the HW cost if you develop something on our own. You can still consider hiring a consultant to get you started quickly saving valuable development time Develop Complete HW Solution Over 10K EAU, Lower HW Cost If You Design Your Own Solution

Buy A Complete Module With SW Under 1K EAU, LCD Module is Best No OS, Activation or GUI Experience Work with a Consulting Firm On Graphics 1K-10K EAU, LCDs in Multiple Projects Building LCD Expertise Outsource OS and Activation Develop Own GUI Software For software, it is a similar list of issues Buy a complete module and pay for software development - Under 1K eau this is your best option. Compete solutions offer the OS and activation software as well as GUI development software as a part of their complete solution platform. Work with a consulting firm on graphics - 1K-10K EAU – In this volume, you have the widest range of options – if you want to build more LCD expertise, then you might want to outsource the OS and activation software and develop your own GUI Develop your own graphics, using tools You should look at one of the modeling graphics solutions to insure that you have a unique GUI design that can stand out compared to the competition. At a minimum download a demo version and try it out from various suppliers. Develop Complete Graphics Over 10K EAU, Leverage 3rd Party Software, Develop Entire Solution Consider Licensing To Shorten Dev Time

Renesas FDI Serious Integrated Demo Kits Y Turnkey Hardware - Quick Prototype SW Y - Shiptide Development Kits Graphics SW Renesas GAPI RTOS Ports FreeRTOS, Micrium, Segger FreeRTOS Design Consulting We’ve talked about a lot of different development options for both hardware and software. Here is a listing a resources available from Renesas and two of our third party suppliers that offer solutions for TFT embedded system development. The news here is that our ecosystem is one of the most highly developed compared to anything offered in this space. We and our partners will stand by you in our development.

There Are Many Choices in Technology including LCD Screens, Touch Technology, MCU/MPUs and Software Renesas and Our Partners Offer the Right Solutions to Help Navigate the Design Process Successfully Renesas Offers Two Product Families for LCD TFT Touchscreens: From this Presentation, you have seen how easy it is to add a LCD Touchscreen to your embedded solution Get a LCD Touchscreen Solution Kit Today Rapid prototyping is the name of the game to get your project approved and completed on time Renesas offers two complete solutions: RX for entry level designs with WQVGA resolutions SH for Up to WVGA with 2D acceleration and med animation Entry Level Resolution to WQVGA Little Animation No HW Acceleration Mid Level Resolution to WVGA 2D Acceleration Med Animation

Here’s a picture of a traditional thermostat with segment LCD display. Notice that the user interface is a number of mechanical buttons placed around the device. Typically this model is programmable where you can set different temperature ranges for different days in the week. The unit can control both the air conditioner and heater. The latest models that enable the smart society include a touch screen over a TFT LCD color screen. With a touch screen interface, you can layer various menus and provide more help to the customers on the screen so they don’t need to reference a paper manual. With added support for Wi-Fi, you can add communication with a tablet computer. In fact, you might have multiple thermostats so you can view status as well as change settings from the tablet to control all thermostats at once. Once you are on an IP network and connected to the Internet, you can also access status from a cell phone or tablet via 3G or 4G technology allowing you to control everything from a remote location.

Serious Integrated SIM205 with RX621 Preloaded Thermostat, Presentation, Sound Demos Available from Marketing for Demos or Digikey $187.00 FDI uEZGUI 3.5” (uEZGUI-RX62N-35QT) uEZ Rapid Development Platform Available at Digikey $299 RX DDLCD Solution Kit Thermostat with Weather Patient Monitor Appliance Available from Renesas YLCDRSKRX62NS Open doors With a Quick Demo

Quick Demo Loaded on Every Unit Hardware can be integrated into embedded system Cost effective for low to mid volumes Features 3.5” QVGA TFT LCD from Tianma 4-Wire Resistive Touch Screen 512KB of PSRAM microSD Memory Card USB Device Port Speaker Expansion via 50- pin I/O connector UARTs, I2C, SPI, USB Host/Device $299

CPU SODIMM Module Renesas RX62N Microcontroller 8MB External SDRAM 10/100 Ethernet PHY Micro SD, Mini JTAG & ISP CARRIER Board USB Host & Device Ports 10/100 Ethernet Port, Wi-Fi CAN, RS-232, I2S Audio I2C & I2S Exp Connectors RTC with SuperCap backup 3-axis Acc & Temp Sensor LCD CARRIER 4.3” WQVGA TFT LCD 4-Wire Resistive Touch Screen 5.7” Kit 4.3” Kit 4.7” Kit Part Number DK-57TS-RX62N DK-43WQT-RX62N DK-47WQT-RX62N LCD QVGA WQVGA MSRP $450 $475

Handles more sophisticated GUIs with richer graphics Basic animation and rich alpha-blended backdrops 4.3” Wide QVGA 480x272 TFT LCD Resistive Touch Screen 100MHz Renesas RX621 MCU engine Connect with your system via USB, I2C, SPI, UART, and/or GPIO Complete no-cost software for fast out-of-box GUI development Micrium µC/OS-III: full single-unit kernel production license included! Segger embOS+embFS including production license FreeRTOS port Renesas Graphics API (GAPI) on Micrium and FreeRTOS Uses full-featured and free KPIT GNU + Renesas HEW toolchain Other valuable Serious software MSRP $178.75/ea; less at some distributors, production pricing available Available at the Serious e-store and Digi-Key SIM205 Available Today in Full Production

The global TFT-LCD display panel market attained a value of USD 181.67 billion in 2022. It is expected to grow further in the forecast period of 2023-2028 with a CAGR of 5.2% and is projected to reach a value of USD 246.25 billion by 2028.

The current global TFT-LCD display panel market is driven by the increasing demand for flat panel TVs, good quality smartphones, tablets, and vehicle monitoring systems along with the growing gaming industry. The global display market is dominated by the flat panel display with TFT-LCD display panel being the most popular flat panel type and is being driven by strong demand from emerging economies, especially those in Asia Pacific like India, China, Korea, and Taiwan, among others. The rising demand for consumer electronics like LCD TVs, PCs, laptops, SLR cameras, navigation equipment and others have been aiding the growth of the industry.

TFT-LCD display panel is a type of liquid crystal display where each pixel is attached to a thin film transistor. Since the early 2000s, all LCD computer screens are TFT as they have a better response time and improved colour quality. With favourable properties like being light weight, slim, high in resolution and low in power consumption, they are in high demand in almost all sectors where displays are needed. Even with their larger dimensions, TFT-LCD display panel are more feasible as they can be viewed from a wider angle, are not susceptible to reflection and are lighter weight than traditional CRT TVs.

The global TFT-LCD display panel market is being driven by the growing household demand for average and large-sized flat panel TVs as well as a growing demand for slim, high-resolution smart phones with large screens. The rising demand for portable and small-sized tablets in the educational and commercial sectors has also been aiding the TFT-LCD display panel market growth. Increasing demand for automotive displays, a growing gaming industry and the emerging popularity of 3D cinema, are all major drivers for the market. Despite the concerns about an over-supply in the market, the shipments of large TFT-LCD display panel again rose in 2020.

North America is the largest market for TFT-LCD display panel, with over one-third of the global share. It is followed closely by the Asia-Pacific region, where countries like India, China, Korea, and Taiwan are significant emerging market for TFT-LCD display panels. China and India are among the fastest growing markets in the region. The growth of the demand in these regions have been assisted by the growth in their economy, a rise in disposable incomes and an increasing demand for consumer electronics.

The report gives a detailed analysis of the following key players in the global TFT-LCD display panel Market, covering their competitive landscape, capacity, and latest developments like mergers, acquisitions, and investments, expansions of capacity, and plant turnarounds:

An excellent new compatible library is available which can render TrueType fonts on a TFT screen (or into a sprite). This has been developed by takkaO and is available here. I have been reluctant to support yet another font format but this is an amazing library which is very easy to use. It provides access to compact font files, with fully scaleable anti-aliased glyphs. Left, middle and right justified text can also be printed to the screen. I have added TFT_eSPI specific examples to the OpenFontRender library and tested on RP2040 and ESP32 processors, however the ESP8266 does not have sufficient RAM. Here is a demo screen where a single 12kbyte font file binary was used to render fully anti-aliased glyphs of gradually increasing size on a 320x480 TFT screen:

For ESP32 ONLY, the TFT configuration (user setup) can now be included inside an Arduino IDE sketch providing the instructions in the example Generic->Sketch_with_tft_setup are followed. See ReadMe tab in that sketch for the instructions. If the setup is not in the sketch then the library settings will be used. This means that "per project" configurations are possible without modifying the library setup files. Please note that ALL the other examples in the library will use the library settings unless they are adapted and the "tft_setup.h" header file included. Note: there are issues with this approach, #2007 proposes an alternative method.

Smooth fonts can now be rendered direct to the TFT with very little flicker for quickly changing values. This is achieved by a line-by-line and block-by-block update of the glyph area without drawing pixels twice. This is a "breaking" change for some sketches because a new true/false parameter is needed to render the background. The default is false if the parameter is missing, Examples:

Frank Boesing has created an extension library for TFT_eSPI that allows a large range of ready-built fonts to be used. Frank"s library (adapted to permit rendering in sprites as well as TFT) can be downloaded here. More than 3300 additional Fonts are available here. The TFT_eSPI_ext library contains examples that demonstrate the use of the fonts.

Users of PowerPoint experienced with running macros may be interested in the pptm sketch generator here, this converts graphics and tables drawn in PowerPoint slides into an Arduino sketch that renders the graphics on a 480x320 TFT. This is based on VB macros created by Kris Kasprzak here.

The library now provides a "viewport" capability. See "Viewport_Demo" and "Viewport_graphicstest" examples. When a viewport is defined graphics will only appear within that window. The coordinate datum by default moves to the top left corner of the viewport, but can optionally remain at top left corner of TFT. The GUIslice library will make use of this feature to speed up the rendering of GUI objects (see #769).

"Four wire" SPI and 8 bit parallel interfaces are supported. Due to lack of GPIO pins the 8 bit parallel interface is NOT supported on the ESP8266. 8 bit parallel interface TFTs (e.g. UNO format mcufriend shields) can used with the STM32 Nucleo 64/144 range or the UNO format ESP32 (see below for ESP32).

The library supports some TFT displays designed for the Raspberry Pi (RPi) that are based on a ILI9486 or ST7796 driver chip with a 480 x 320 pixel screen. The ILI9486 RPi display must be of the Waveshare design and use a 16 bit serial interface based on the 74HC04, 74HC4040 and 2 x 74HC4094 logic chips. Note that due to design variations between these displays not all RPi displays will work with this library, so purchasing a RPi display of these types solely for use with this library is NOT recommended.

Some displays permit the internal TFT screen RAM to be read, a few of the examples use this feature. The TFT_Screen_Capture example allows full screens to be captured and sent to a PC, this is handy to create program documentation.

The library includes a "Sprite" class, this enables flicker free updates of complex graphics. Direct writes to the TFT with graphics functions are still available, so existing sketches do not need to be changed.

The "Animated_dial" example shows how dials can be created using a rotated Sprite for the needle. To run this example the TFT interface must support reading from the screen RAM (not all do). The dial rim and scale is a jpeg image, created using a paint program.

The XPT2046 touch screen controller is supported for SPI based displays only. The SPI bus for the touch controller is shared with the TFT and only an additional chip select line is needed. This support will eventually be deprecated when a suitable touch screen library is available.

The library supports SPI overlap on the ESP8266 so the TFT screen can share MOSI, MISO and SCLK pins with the program FLASH, this frees up GPIO pins for other uses. Only one SPI device can be connected to the FLASH pins and the chips select for the TFT must be on pin D3 (GPIO0).

Configuration of the library font selections, pins used to interface with the TFT and other features is made by editing the User_Setup.h file in the library folder, or by selecting your own configuration in the "User_Setup_Selet,h" file. Fonts and features can easily be enabled/disabled by commenting out lines.

It would be possible to compress the vlw font files but the rendering performance to a TFT is still good when storing the font file(s) in SPIFFS, LittleFS or FLASH arrays.

Anti-aliased fonts can also be drawn over a gradient background with a callback to fetch the background colour of each pixel. This pixel colour can be set by the gradient algorithm or by reading back the TFT screen memory (if reading the display is supported).

Unfortunately the typical UNO/mcufriend TFT display board maps LCD_RD, LCD_CS and LCD_RST signals to the ESP32 analogue pins 35, 34 and 36 which are input only. To solve this I linked in the 3 spare pins IO15, IO33 and IO32 by adding wires to the bottom of the board as follows:

If you load a new copy of TFT_eSPI then it will overwrite your setups if they are kept within the TFT_eSPI folder. One way around this is to create a new folder in your Arduino library folder called "TFT_eSPI_Setups". You then place your custom setup.h files in there. After an upgrade simply edit the User_Setup_Select.h file to point to your custom setup file e.g.:

The library was intended to support only TFT displays but using a Sprite as a 1 bit per pixel screen buffer permits support for the Waveshare 2 and 3 colour SPI ePaper displays. This addition to the library is experimental and only one example is provided. Further examples will be added.