tft lcd source driver ic supplier

Similarly, Tft LCD drivers provide smooth and easy to maintain components with a higher charging voltage. In other words, Tft LCD driver provide an easy-to-use option and consume quite some energy on the components, while Tft lcd driver offer a more convenient option and consume less energy to maintain.

Similarly, Tft lCD drivers are much larger in the compared of Tft LCD ones and more important are the differences between Tft LCD and Tft LCD drivers. However, the biggest difference in their functions include that, it can be more into the sizes of Tft LCD drivers.

There are other types of Tft lCD driver, such as amber tft stick driver, battery tft lcd driver, and strip sticks for battery tft drivers. In this type, the sticks are free of the battery and can be used into many other if as is the case. Moreover, the tft lcd driver vary in its aspects as it is powered and can be used with many others.

There are two types of Tft lCD driver for 12v and one such is the Tft LCD driver 12v. In this case, the Tft LCD driver for 12v is also called the Tft LCD driver from 12v to 24v. It is essential to know that a tft lCD driver is 12v or 24v. and in this case, a tft lcd driver with 12v power supply can be obtained.

TC2079 is a 1446-channel source driver for high resolution TFT LCD. It is designed for COG (Chip-on-glass) application. The input interface is SIPI™ (Scalable Intra Panel Interface) which has been developed and patented by Parade Technologies. SIPI™ is a point-to-point interface between Timing Controller (TCON) and Source Driver (SD). The SIPI™ intra panel interface provides scalable bandwidth with reduced bus width, low EMI and low power, more robust protocol to establish link and enhance system reliability to address existing and future growth of high resolution digital display on notebook and tablet PCs and other consumer electronics applications.

HSMD-C191 : Agilent HSMD-C191 Low Profile Chipled. This series of ChipLEDs is designed with the smallest footprint to achieve high density of components on board. The HSMx-C191 has the industry standard 0.8 mm footprint. Its low 0.6 mm profile and wide viewing angle make this LED exceptional for backlighting applications. The available colors in this surface mount series are HER, orange, yellow, green,.

SEL1x10x : Uni-Color LED Lamp. Absolute maximum ratings (Ta=25�C) Symbol IF IFP VR Top Tstg Unit mA mA/�C V �C Rating to +100 Condition Above f=1kHz, tw100�s Electrical Optical characteristics (Ta=25�C) Part Number Forward voltage Reverse current Intensity Peak wavelength Spectrum half width VF Condition IR Condition IV Condition P Condition Chip material (V) IF (�A) VR (mcd) IF (nm).

SHE124PGH : High Brightness Led Lamp. Green Colored lens type 5mm(T-13/4) all plastic mold type Viewing angles : 40� Super luminosity Application Traffic Signal Massage Board Variable message signs(VMS) Power Dissipation Forward Current * Peak Forward Current Reverse Voltage Operating Temperature Storage Temperature 260 for 5 seconds * Soldering Temperature Tsol *1.Duty ratio = 1/16, Pulse.

HT16L21 : RAM Mapping 32×4 LCD Driver The HT16L21 device is a memory mapping and multi-function LCD controller/driver. The display segments of the device are 128 patterns (32 segments and 4 commons) display. It can also support LED drive outputs on certain Segment pins. The software configuration feature of the HT16L21 device makes it suitable for multiple LCD applications.

PT-121-B-C11-EPA : LED Lighting Modules Blue 462nm 540lm @ 30A. » » » LEDs - Engines/Modules: Packaged Functional Assemblies - Blue LEDs - Engines/Modules: Packaged Functional Assemblies - Blue LED Engines and LED Modules represent products that consist of integrated LED solutions. At present, there is no consistently used application definition used.

OPB900W55Z : Photointerruptors Slotted Opt Switch. s: Manufacturer: Optek ; Product Category: Photointerruptors ; RoHS: Details ; Sensing Method: Transmissive ; Maximum Reverse Voltage (Emitter): 2 V ; Slot Width: 9.5 mm ; Aperture Width: 1.27 mm ; Output Device: Photologic, Totem Pole ; Power Dissipation: 300 mW ; Maximum Fall Time: 70 ns ; Maximum Operating.

LCM-480234GF-40CG : Display Modules - LCD, OLED, Graphic *; LCD TFT 4.0" MODULE W/NTSC DEC. s: Display Type: TFT - Color LCD ; Display Mode: * ; Backlight: CCFL - White ; Dot Size: - ; Viewing Area: 82.11mm L x 61.77mm W ; Dot Pixels: 480 x 234 ; Dot Pitch: - ; Interface: -.

Driver ICs are critical components of TFT-LCD panels. Driver IC receives image data and delivers precise analog voltages or currents to activate the pixels on the display. When voltage is applied to the liquid crystal within each pixel cell, the liquid crystal is bent, thereby changing the intensity of light that passes through each individual pixel. Combined with the colour filter on the front glass substrate, each pixel generates its own colours which, together with other pixels, make up the whole image on the panel.

Driver ICs for mobile phones include gate drivers and source drivers. Gate drivers turn on the transistor within each pixel cell on the horizontal row on the panel. When the transistors are turned on, source drivers will generate voltages that are applied to the liquid crystal within each pixel cell on that row for data input. The combination determines the colours generated by each pixel. Small-sized panel applications, such as mobile phones, require one source driver and one gate driver, which are integrated into a single chip due to space and cost considerations. Large-sized panel applications, such as television display or desktop monitor, normally have multiple gate drivers and source drivers which are installed separately on the panel.

Resolution and number of channels: Resolution refers to the number of pixels in width dimension multiplied by the number of pixels in height dimension. For example, a WVGA colour display screen with 480 x 800 pixels has 1,440 pixels from side to side and 800 pixels from top to bottom, and therefore it has a total number of 384,000 pixels (480 x 800 pixels). Each pixel is a sample of an original image and more samples typically provide more accurate representations of the original image. Therefore, resolution usually determines the level of fine detail within an image displayed on a panel. Each pixel is usually made up of one red column, one green column and one blue column. These three primary colours are combined to make a wide range of colours. For example, a colour display screen with 480 x 800 pixels has 480 red columns, 480 green columns and 480 blue columns for a total of 1,440 columns and 800 rows. Therefore, the display drivers ICs need to drive 1,440 column outputs and 800 row outputs.

Colour depth: Colour depth is the number of colours that can be displayed on a screen, which is determined by the number of shades of a colour, also known as grayscale, which can be shown by panel. The number of distinct colours that can be generated by a pixel depends on the number of bits of the driver IC.

Higher level of integration: Due to the size constraint of mobile phones, the space available for components is usually limited. In order to stay competitive in the market, customers demand for higher levels of integration and simpler module assembly process to manufacture more compact panels and reduce unit costs. Small-sized panel applications require one source driver, one gate driver and timing controller which can be installed as separate semiconductors or as an integrated single-chip driver. Display driver IC manufacturers aim to offer highly integrated chips combining the source driver, gate driver and timing controller, as well as other functional circuits such as memory, power circuit and image processors, into one single chip. Due to the size and power constraints of such driver IC, single-chip driver IC is generally more complex to design.

TFT LCDs have become the norm for small-to-medium size displays in a variety of products within industrial, medical, POS and consumer applications. Compared to passive-addressed monochrome LCDs, TFT displays offer higher contrast, wider viewing angles, faster response time and full color. And, TFT LCDs are now on cost parity with similar size passive LCD displays.

A typical TFT LCD module product consists of a TFT LCD panel, one or more COG (chip-on-glass) driver ICs, a backlight unit, and an interface FPC. Several TFT display interface technologies coexist today. Picking the right technology depends on specific end-product concerns. Most often the display panel input will dictate that choice since TFT panels are designed to be COG bonding pad compatible with a very limited number of driver ICs. This article discusses the interfaces between TFT LCD modules and the typical CPUs found in embedded applications.

Typical TFT interfaces are determined by the particular TFT panel size and resolution, as shown in the below table. HDMI and eDP require interface converting boards and generally are not used for small to medium-size TFT LCDs.TFT LCD SizesResolutionsTypical Interfaces UsedUp to 3.5″128×160 to 240×320SPI, parallel MPU or RGB

The LCD controller signals are two types: data signals and control signals. The data signals are connected to the LCD data bus and depend on the LCD color depth (8-bit, 9-bit, 16-bit, 18-bit). The control signals are used to define the operation type (read or write), and whether the operation involves in addressing LCD registers or the display RAM.

LVDS interfacing has several benefits for TFT displays. It is much less susceptible to EMI and crosstalk issues, allowing the transmitting device to be located farther from the display. Also, LVDS generally consumes less power, pin counts are lower and there are far fewer worries about signal integrity.

High-speed serial interface commonly used on smartphones and tablets. By standardizing this interface, components may be developed that provide higher performance, lower power, less electromagnetic interference and fewer pins than current devices, while maintaining compatibility across products from multiple vendors.

Modern TFT driver ICs are highly integrated chips combining the source driver, gate driver and timing controller (TCON) – as well as other functional circuits such as memory, power circuit, and image processors – into one single IC die. Some driver ICs support multiple interfaces that are selectable on the module FPC or through initialization code firmware.

As a designer and manufacturer of custom LCD modules, New Vision Display works with customers to select the most appropriate and cost-effective TFT display and electronic interface solution for their particular requirement. New Vision Display has nearly 30 years of industry experience as one of the world’s leading TFT LCD screen manufacturers.

Recognized as the world"s leading solution provider for a full array of Display Driver ICs for LCD displays, Novatek has successfully become the industry leader by achieving substantial growth of its revenue and unit shipment, as well as design wins with its world-class customers since its announcement of Taiwan"s first 240ch gate driver and 288/240ch source driver for TFT LCD back in October 1999.

Since then, Novatek has concentrated its R&D resources on delivering the total solution of Display Driver IC, targeting for higher performance, lower EMI, low power consumption and highly integration. With Novatek"s design-wins with the world"s leading panel manufacturers, and affiliated with its strength of chip design, advanced fabrication capacity and process technologies, Novatek has been able to continually deliver the best value added solutions at the best time to market, thereby gaining the satisfaction and royalty from the customers.

Since the reference voltages are connected to all channels, many DACs may use the same reference voltage. The more DACs there are connected to a single reference voltage, the larger the required C-DAC settling time. This study simulates the settling time for different numbers of connected DACs using a 0.35-μm 5-V CMOS model. Figure 11 shows the simulated results where the settling time is measured at 99.9% of its final voltage for a full swing (0.266 V ~ 4.75 V). The settling time is 5.2 μs when 200 DACs are connected to a single reference voltage. Although a column driver IC contains several hundreds or even up to a thousand DACs, these DACs are distributed to 256 (28) reference voltages. This means that not all the DACs are connected to a single reference voltage. A typical UXGA (1600×1200) display has a pixel clock frequency of 162 MHz and a horizontal scanning time of 9.877 μs [4]. Hence, the proposed column driver is suitable for UXGA displays.

Due to the limited silicon area, the proposed LCD column driver has only four channels. The 10-bit LCD column driver with R-DAC and C-DAC was fabricated using a 0.35-μm 5-V CMOS technology. Table I shows the device sizes used in the proposed column driver, where Rtop, Rmid, Rbot, and Ri are designated in Figure 7. Figure 12 is a photograph of the die. Except for the resistor string of the R-DAC, the die area is 0.2×1.26 mm2 for four channels. Each RGB digital input code is 10-bits wide.

The Differential Nonlinearity (DNL) and Integral Nonlinearity (INL) are typically measured for a DAC. However, it is difficult to determine these two specifications for a nonlinear DAC. To demonstrate the performance of the proposed circuit, the nonlinear gamma voltages are not applied to the R-string and the resistor values of the resistor string are made equal. Since an LCD panel needs several column drivers, the uniformity of different drivers is very important. Figure 13 shows the measured transfer curves of a DAC for eight off-chip column drivers. To show the deviation between different chips, Figure 14 provides an

enlarged view of the transfer curves, where the maximum deviation is 3.5 mV from the mean. This deviation is mainly due to process variations. The approach in this study uses no error correction. Hence, the deviation can be reduced by applying an offset canceling technique to the buffer amplifier. Figures 15(a) and (b) show the DNL values for positive and negative polarities, respectively. Figures 16(a) and (b) show the INL values for positive and negative polarities, respectively. The combination of R-DACs and C-DACs creates two groups of DNL values. The maximum DNL and INL values are 3.83 and 3.84 LSB, respectively. This study uses a 1-LSB voltage of 2.44mV to calculate the INL and DNL values. The linearity, however, is less important than the deviations between off-chip drivers for LCD drivers [2].

Figure 17 shows the measured output waveforms of two neighboring channels under dot inversion for the RGB digital inputs of ‘1111111111.’ Here, the voltage levels for negative and positive polarities are 0.266 V and 4.75 V, respectively. A load resistor of 5 kΩ and a capacitor of 90 pF were used. Figure 18 shows a similar waveform for ‘0000000000’ inputs, where the corresponding voltage levels for negative and positive polarities are 2.425 V and 2.598 V, respectively. These two figures show that the settling time is within 3 μs, which is smaller than that of previously published work [2] and standard UXGA displays [5]. Table II summarizes the performance of the proposed column driver IC. The average area per channel is 0.063 mm2, which is smaller than the reported areas of fully R-DAC-based column drivers [5, 8]. These experimental results show that the proposed column driver is suitable for UXGA LCD-TV applications.

(Hong Kong – 08 Oct, 2004) – With respect to the increasing demand on TFT module for smart phone application, Solomon Systech Limited launched today their first single chip TFT LCD driver IC SSD1278 which supports 176×220 (QCIF+) resolution and 262K color smart phone system. SSD1278 is a single chip solution that includes gate/source driver blocks and power management circuit. SSD1278 with RGB interface, which is supported by common image processors/graphic controllers, is a perfect solution for speedy data transfer when using CMOS/CCD camera in the smart phone system.

SSD1278 is the smallest (with only 20.9 x 1.4mm² die size) and the simplest solution commercially available for QCIF+ resolution in the amorphous TFT display. The advantages of the small die size are not only in cost reduction of the module but also achievement of compact design of the phone. The smaller die allows thinner contact ledge at the LCD module and therefore smaller overall physical size. Besides, the advanced design technology from Solomon Systech achieves low power consumption in the TFT LCD module system. This is one of the essential factors in all portable systems. In an actual measurement of a 1.9″, 176×220 QCIF+ display module using Solomon Systech’s TFT driver SSD1278, the module power consumption at 262k color, 60Hz frame frequency and line inversion is only 8mW, while the power consumption at frame inversion is even 7mW. These low power consumption values enable Solomon Systech to become one of the most competitive TFT LCD driver suppliers in the market.

The mobile phone has been improved by adding colorful display, video clip, camera function and PDA features. In order to cope with the demand on features enhancement, a new innovative mobile phone system has been created. Nowadays, the smart phone system does not only include the MCU and DSP blocks but also an image processor that can help on the MPEG4 acceleration, JPEG Codec, 2D/3D graphic engine and so on. As image processor has already sufficient display SRAM on chip, only a RAMless driver like SSD1278 is needed in order to optimize the smart phone system. This structure eliminates the duplication of RAM at the driver IC and improves overall efficiency and cost of the system. Therefore, SSD1278 is the most suitable RAMless solutions for a smart phone system and this would be the trend in the future handset market.

Himax is worldwide market leader in display driver ICs used in TVs, laptops, monitors, mobile phones, tablets, digital cameras, car navigation, and many other consumer electronics devices. We supply our driver products to top panel makers across Korea, Taiwan, China and Japan.

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