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2023-01-03 12:32:11

Flat-panel displays are thin panels of glass or plastic used for electronically displaying text, images, or video. Liquid crystal displays (LCD), OLED (organic light emitting diode) and microLED displays are not quite the same; since LCD uses a liquid crystal that reacts to an electric current blocking light or allowing it to pass through the panel, whereas OLED/microLED displays consist of electroluminescent organic/inorganic materials that generate light when a current is passed through the material. LCD, OLED and microLED displays are driven using LTPS, IGZO, LTPO, and A-Si TFT transistor technologies as their backplane using ITO to supply current to the transistors and in turn to the liquid crystal or electroluminescent material. Segment and passive OLED and LCD displays do not use a backplane but use indium tin oxide (ITO), a transparent conductive material, to pass current to the electroluminescent material or liquid crystal. In LCDs, there is an even layer of liquid crystal throughout the panel whereas an OLED display has the electroluminescent material only where it is meant to light up. OLEDs, LCDs and microLEDs can be made flexible and transparent, but LCDs require a backlight because they cannot emit light on their own like OLEDs and microLEDs.

Liquid-crystal display (or LCD) is a thin, flat panel used for electronically displaying information such as text, images, and moving pictures. They are usually made of glass but they can also be made out of plastic. Some manufacturers make transparent LCD panels and special sequential color segment LCDs that have higher than usual refresh rates and an RGB backlight. The backlight is synchronized with the display so that the colors will show up as needed. The list of LCD manufacturers:

Organic light emitting diode (or OLED displays) is a thin, flat panel made of glass or plastic used for electronically displaying information such as text, images, and moving pictures. OLED panels can also take the shape of a light panel, where red, green and blue light emitting materials are stacked to create a white light panel. OLED displays can also be made transparent and/or flexible and these transparent panels are available on the market and are widely used in smartphones with under-display optical fingerprint sensors. LCD and OLED displays are available in different shapes, the most prominent of which is a circular display, which is used in smartwatches. The list of OLED display manufacturers:

MicroLED displays is an emerging flat-panel display technology consisting of arrays of microscopic LEDs forming the individual pixel elements. Like OLED, microLED offers infinite contrast ratio, but unlike OLED, microLED is immune to screen burn-in, and consumes less power while having higher light output, as it uses LEDs instead of organic electroluminescent materials, The list of MicroLED display manufacturers:

LCDs are made in a glass substrate. For OLED, the substrate can also be plastic. The size of the substrates are specified in generations, with each generation using a larger substrate. For example, a 4th generation substrate is larger in size than a 3rd generation substrate. A larger substrate allows for more panels to be cut from a single substrate, or for larger panels to be made, akin to increasing wafer sizes in the semiconductor industry.

"Samsung Display has halted local Gen-8 LCD lines: sources". THE ELEC, Korea Electronics Industry Media. August 16, 2019. Archived from the original on April 3, 2020. Retrieved December 18, 2019.

"TCL to Build World"s Largest Gen 11 LCD Panel Factory". www.businesswire.com. May 19, 2016. Archived from the original on April 2, 2018. Retrieved April 1, 2018.

"Panel Manufacturers Start to Operate Their New 8th Generation LCD Lines". 대한민국 IT포털의 중심! 이티뉴스. June 19, 2017. Archived from the original on June 30, 2019. Retrieved June 30, 2019.

"TCL"s Panel Manufacturer CSOT Commences Production of High Generation Panel Modules". www.businesswire.com. June 14, 2018. Archived from the original on June 30, 2019. Retrieved June 30, 2019.

"Samsung Display Considering Halting Some LCD Production Lines". 비즈니스코리아 - BusinessKorea. August 16, 2019. Archived from the original on April 5, 2020. Retrieved December 19, 2019.

Herald, The Korea (July 6, 2016). "Samsung Display accelerates transition from LCD to OLED". www.koreaherald.com. Archived from the original on April 1, 2018. Retrieved April 1, 2018.

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There has been a significant shift in the global display industry lately. Apart from new display technologies, the display world is now dominated by players in Asian countries such as China, Korea, and Japan. And rightly so, the world’s best famous LCD module manufacturers come from all these countries.

STONE Technologies is a proud manufacturer of superior quality TFT LCD modules and LCD screens. The company also provides intelligent HMI solutions that perfectly fit in with its excellent hardware offerings.

There is also a downloadable design software called STONE Designer. This is a completely free GUI design software you can use to create responsive digital module-ready user interfaces.

STONE TFT LCD modules come with a microcontroller unit that has a Cortex A8 1GHz Standard 256MB. Such a module can easily be transformed into an HMI screen. Simple hexadecimal instructions can be used to control the module through the UART port. Furthermore, you can seamlessly develop STONE TFT LCD color user interface modules and add touch control, features to them.

In this post, we list down 10 of the best famous LCD manufacturers globally. We’ll also explore why they became among the reputable LCD module manufacturers in the world.

Samsung is the world’s largest semiconductor and consumer electronics manufacturer by revenue. The electronics giant is well-known for its smartphones and home appliances, but the company also manufactures LCD, LED, and OLED panels.

The success of this company didn’t come overnight. Samsung worked hard to establish independent product innovation and technology development strategies. All of these undertakings started in the late 1990s and paved the way for the success that Samsung is now enjoying since the 2000s.

Probably the most in-demand and popular display panel product for Samsung is their OLED technology. Most of its current smartphones use their trademark Super AMOLED displays. The technology allowed Samsung’s smartphones to be ultra-thin, with better image brightness, and less energy consumption.

Samsung now produces panels for smart TVs. With their ever-evolving technological expertise and high-quality products, the company shows no signs of slowing down as one of the world’s best famous LCD module manufacturers.

Stone provides a professional product line that includes intelligent TFT-LCD modules for civil, advanced, and industrial use. Furthermore, Stone also creates embedded-type industrial PCs. The company’s products are all highly-reliable and stable even when used with humidity, vibration, and high temperatures.

One of the key strengths of Stone Technologies is its commitment to professionalism and client satisfaction. The company provides its clients with technical support such as demos, software training, and troubleshooting assistance. Also, Stone offers an unlimited warranty policy where a client may send back any product with damages and failures to be replaced completely for free.

Stone Technologies caters to a wide range of clients and industries, being among the world’s best famous LCD module manufacturers. The company’s products are used in the following industries:

Originally, LG Display was a joint venture of mother company LG Electronics and the Dutch company Phillips. They dedicated the company to creating active-matrix LCD panels. Another joint venture called LG. Phillips Displays was created to manufacture deflection yokes and cathode ray tubes.

However, Phillips decided to start selling its shares in 2008, and the dwindling company shares of Phillips prompted LG to change its corporate name to LG Display with approval from all existing shareholders.

LG Display has risen above the rest because of its world-class module products. Because of this, the company caters to a massive range of famous clients including Hewlett Packard, Apple, Sony, Dell, Acer, and Lenovo. LG Display also creates LCD modules and similar display panels for the company’s television product range.

Innolux Corporation is another famous LCD module manufacturer. This company was established in 2003 and is currently based in Zhunan, Miaoli County, Taiwan.

The company is a well-known manufacturer of display panels in Taiwan. Innolux supplies TFT-LCD and LED panels, open cells, and touch modules for the following products:

Innolux has 14 manufacturing plants, with the main ones being in Zhunan and Tainan, Taiwan. Other plants are established in the Chinese areas of Shanghai, Nanjing, Foshan, and Ningbo. Each Innolux plant has a complete production line capable of manufacturing technologies ranging from 3.5G to 8.6G. Meanwhile, Taiwan remains the main hub of Innolux’s training center and R&D unit.

What makes Innolux stand out from other LCD module manufacturers is the company’s commitment to its humanistic qualities. Innolux believes that they are in the business to contribute to the well-being and prosperity of their customers. This is then achieved by creating world-class products that satisfy its clients.

Sharp is a Japanese company founded in 1912. It is now based in Sakai, Osaka Prefecture. The company produces various kinds of electronic products including mobile phones, LCD panels, calculators, PV solar cells, and consumer electronics. Sharp has produced TFT-LCD products as early as the 1980s.

For the regular public consumers, Sharp produces a variety of smart TVs and LCD TVs marketed under the Aquos brand. The company’s television line-up boasts of impressively high-quality technology. The TVs are equipped with technologies that support 4K and 8K UHD display, allowing for a great high-resolution viewing experience.

BOE Display is among the leading display manufacturers in the world. The company started in 1993 and is currently based in Beijing, China. Apart from display panels, BOE also manufactures smart systems using IoT technology.

The company manufactures display products for smartphones, computers, televisions, monitors, tablets, vehicles, wearable devices, and medical equipment. Specifically, here are some of the display products that BOE creates:

The company proudly utilizes high-end technologies to create world-class display solutions. For instance, AU’s production lines can manufacture a variety of display applications in a full panel size range. The manufacturing lines also support:

Sustainability is among the ultimate goals of AU Optronics. The company takes steps to integrate green solutions into their products for more sustainable development. This commitment to sustainability, among other strong qualities, makes AU Optronics one of the best LCD manufacturers in the world.

Toshiba is a huge Japanese multinational conglomerate company. It was founded in 1939 and is currently based in Minato, Tokyo, Japan. The company is engaged in a wide variety of businesses which also include display solutions for consumer households and industrial use.

Most of these products use TFT-LCD panels alongside other technologies to create ultra-high-definition images. Also, modern Toshiba display products incorporate IoT and artificial intelligence for a smarter product experience.

Kyocera is a Japanese LCD manufacturer. The company started in 1959 as a fine technical ceramics manufacturer but gradually added consumer electronics products to its offerings.

The Japanese company acquired Optrex Corporation in 2012. The acquisition paved the way for creating an R&D center and more production, sales, and marketing bases. Hence, Kyocera’s global LCD business boomed even more.

The company also operates factories, R&D centers, and marketing facilities in Asia, the Middle East, Europe, Africa, North and South America, and Oceania continents. Kyocera has a vast worldwide reach that makes it one of the world’s best famous LCD module manufacturers.

The company’s manufacturing facilities are established in various areas of China. These include Shanghai, Wuhan, Shenzhen, Xiamen, and Chengdu. Another plant has been operating in Akita, Japan.

Tianma is committed to creating a colorful life for all, as stated in the company mission. And indeed, the company does not fall short of fulfilling this mission. Tianma continues to create display solutions that fit the needs of several satisfied clients globally.

To wrap all this up, we listed 10 of the world’s best famous LCD module manufacturers. These are all highly-respected companies that built their reputations and climbed up the ladder of LCD module manufacturing. Their quality products, dedication to their craft, and excellent customer service truly make them among the world’s best display solutions providers.

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VisuNet FLX is, as its name suggests, a comprehensive range of highly flexible operator workstations and monitoring systems from Pepperl+Fuchs for ATEX/IECEx Zone 2/22 and Division 2, and non-hazardous areas. The new ...

... with a complete digital advertising solution. The wall-mounted outdoor display combines a high-bright screen with a weatherproof body. The 1,500 NITS screen captures attention, and auto-dimming keeps ...

... engaging digital signage in any weather. The high-brightness LCD screen keeps your content clear in direct sunlight, for maximum customer engagement. An IP54/NEMA 4 enclosure protects the screen ...

... applications are used at work, a high resolution monitor with a large amount of work space is ideal for improving productivity. The EV3285 supports 4K resolution, displaying four times the amount of standard full HD monitors. ...

... turn-key system solutions in a stainless steel enclosure as wall, floor or ceiling mounting versions. The screen of the POLARIS Remote 15"" is a TFT display with an XGA resolution (1024 x 768 pixels) ...

... the main display for applications requiring a small screen. End-cap shelf displays in retail settings or as personal gaming screens as part of a larger interactive gaming table benefit from the features and design of ...

The C6 AMM monitor offers customized designs for industrial applications. The configurable monitor system has up to eight freely-definable operating and/or signal elements in a completely sealed housing ...

... 60601-1 medical certification standards and is used in consultation rooms in medical environments. The medical-grade touch monitor works with gloves and has IP65 dust- and waterproof front panel.

The HANNspree HP248WJB is a 23.8-inch Full HD monitor featuring an integrated 5Mpixel webcam, microphone array and stereo speakers for video conferencing and live-streaming. The TFT panel delivers ultra-wide ...

An LCD monitor is a flat screen using liquid crystal technology to create the display. It is used in place of CRT (cathode ray tube) monitors to display all types of verbal or graphic information.

LCD monitors are among those that control the transmission or reflection of a separate light source rather than generating their own. The various technologies include twisted nematic (TN), super twisted nematic (STN), film compensated super twisted nematic (FSTN) and thin film transistor (TFT).

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Advanced LED video wall with MicroLED models in 0.6, 0.7 and 0.9mm pixel pitches, and 1.2mm pixel pitch standard LED; with powerful processing, proprietary alignment technology and off-board electronics.

Planar® CarbonLight™ VX Series is comprised of carbon fiber-framed indoor LED video wall and floor displays with exceptional on-camera visual properties and deployment versatility, available in 1.9 and 2.6mm pixel pitch (wall) and 2.6mm (floor).

From cinema content to motion-based digital art, Planar® Luxe MicroLED Displays offer a way to enrich distinctive spaces. HDR support and superior dynamic range create vibrant, high-resolution canvases for creative expression and entertainment. Leading-edge MicroLED technology, design adaptability and the slimmest profiles ensure they seamlessly integrate with architectural elements and complement interior décor.

From cinema content to motion-based digital art, Planar® Luxe Displays offer a way to enrich distinctive spaces. These professional-grade displays provide vibrant, high-resolution canvases for creative expression and entertainment. Leading-edge technology, design adaptability and the slimmest profiles ensure they seamlessly integrate with architectural elements and complement interior decor.

LED video wall solution with advanced video wall processing, off-board electronics, front serviceable cabinets and outstanding image quality available in 0.9mm pixel pitch

a line of extreme and ultra-narrow bezel LCD displays that provides a video wall solution for demanding requirements of 24x7 mission-critical applications and high ambient light environments

Since 1983, Planar display solutions have benefitted countless organizations in every application. Planar displays are usually front and center, dutifully delivering the visual experiences and critical information customers need, with proven technology that is built to withstand the rigors of constant use.

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LED video wall solution with advanced video wall processing, off-board electronics, front serviceable cabinets and outstanding image quality available in 0.9mm pixel pitch

a line of extreme and ultra-narrow bezel LCD displays that provides a video wall solution for demanding requirements of 24x7 mission-critical applications and high ambient light environments

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The best mid-range TV we"ve tested with an LED panel is the Hisense U8H. It"s an excellent TV overall, with fantastic contrast and an impressive Mini LED local dimming feature, delivering deep blacks in a dark room with very little distracting blooming around bright objects. It has exceptional peak brightness and reflection handling, ensuring it can easily overcome glare in a bright room. It has worse processing overall than the Samsung QN90A QLED, though, so it"s a bit of a step down. There"s more noticeable banding in areas of similar color, and it has slightly worse motion processing as well.

It"s a great TV for gaming, with many of the same great features found on the Samsung, including 4k @ 120Hz support from the Xbox Series X and PS5 consoles. It has a fast response time and incredibly low input lag, ensuring a smooth and responsive gaming experience, which is great for competitive gamers. It also has one advantage over the Samsung model, as all of its HDMI ports support HDMI 2.1 bandwidth, while the other TV only supports it on one port.

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The new line of 3.5” TFT displays with IPS technology is now available! Three touchscreen options are available: capacitive, resistive, or without a touchscreen.

For over 20 years Newhaven Display has been one of the most trusted suppliers in the digital display industry. We’ve earned this reputation by providing top quality products, services, and custom design solutions to customers worldwide.

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The Hisense U7G offers great image quality, superb gaming features, and the Android TV interface, but it has a narrower viewing angle and comes in fewer screen sizes than some other TVs.

The Hisense U7G is a great-looking 4K TV with all the technologies and features that any LCD/LED TV should have today, including a full-array local-dimming backlight for superb black levels and image contrast as well as a 120 Hz refresh rate that delivers better motion quality than you’ll find on many competitors. It does a nice job showing high dynamic range video, thanks to its high brightness and rich color, and it supports the more advanced Dolby Vision HDR standard (which can offer improvements in image quality over the standard HDR10 format). For serious gamers, Hisense has also added all the HDMI 2.1 features necessary to take full advantage of the newest gaming consoles. (Check out TV features, defined for more explanation of the technical terms we’re using here.) The U7G features the Android TV streaming platform, which offers a wide variety of streaming services and a continually improving user interface. But the TV comes only in 55-, 65-, and 75-inch screen sizes.

The Samsung QN90A offers better contrast ratios, brighter HDR highlights, and a wider viewing angle than our top pick—in a larger selection of screen sizes.

If you’re willing to pay a higher price to get one of the best LCD performers we’ve tested, the Samsung QN90A is our recommendation. Moving beyond the standard LED backlight in the Hisense U7G, this TV has a mini-LED backlighting system—which offers more local-dimming zones for even better contrast ratios and brighter HDR highlights than on the Hisense—and it produces vibrant colors. It also has a wider viewing angle than our top pick, so everyone can enjoy a good-looking image no matter where they sit in the room, and it comes in more screen sizes, from 43 to 98 inches. The QN90A supports all the latest HDMI 2.1 features, which gamers will appreciate, and it uses Samsung’s proprietary Tizen streaming platform, which supports most of the popular streaming services. We like that it features a center stand so it will fit on virtually any TV furniture, and it sits high enough on the stand that you can place a soundbar in front of it without blocking the screen. The drawbacks are that the QN90A does not support the more advanced Dolby Vision high dynamic range format (but it does support the similarly advanced HDR10+ format), and it’s significantly more expensive than the Hisense U7G.

If you have a wider seating area, or if you regularly watch your TV from side angles, the Sony X950H uses an LCD panel specifically designed to produce a better-looking image at wider viewing angles than many 4K LCD TVs offer. (Our upgrade pick, the Samsung QN90A, employs a similarly effective wide-angle-viewing technology but costs more.) This TV also has Sony’s superb color accuracy and video-processing capability, so it’s better than the competition at removing banding artifacts. However, that wider viewing angle comes at the expense of the TV’s black level, which isn’t as dark as that of Hisense’s U7G or Samsung’s QN90A. Also, you don’t get the full complement of HDMI 2.1 features to improve the gaming experience. The Sony X950H is available in a variety of screen sizes, from 49 to 85 inches.

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... into interior designs. With embedded office functionalities, start up ad-hoc meetings without the hassle of setting up the display environment first. Wake-up on connection is just one of many features which make meetings ...

Designed to deliver medical images of optimal quality, the PAX-327 monitor supports Full HD and UHD resolution. Featuring the Rec. 709 Color Space, true RGB and DICOM Part 14 GSDF compliance, 14-bit LUT processing grayscale, ...

This 55-inch medical grade LCD monitor can display very high quality two-dimensional color video images with 4K resolution from a wide range of medical imaging systems such as surgical ...

This 31-inch medical grade LCD monitor can display very high quality two-dimensional color video images with 4K resolution from a wide range of medical imaging systems such as surgical ...

The LMD-X3200MD 32-inch medical grade monitor displays very high quality 4K Ultra HD 2D color images. Slim, light and easy to use with generous signal connection ...

Double Black Imaging’s Gemini series 6MP color LED backlit LCD monitor doubles the resolution and eliminates the gap between screens in multi-head diagnostic display ...

... Color LED monitor can be used for viewing of grayscale or color images – including multi-modality exams involving X-Ray, DR, CR, MRI, US, PET, 3D, Cardiology, NucMed and Digital Pathology.

Estone Technology "s DT-240 dual-functional LCD monitor can switch between regular color monitor and DICOM Part 14 compliant grayscale medical display easily with one-click ...

Every business is different. Whether you need a customer-facing, point-of-sale touchscreen to display a transaction or an interactive display in a restaurant to enable guests to view the menu ...

... room professional displays adopt widescreen full HD LCD panels with accurate color rendering, excellent layering, smooth and dynamic images and an expanded visual scope, which meet the current rapidly ...

... series are designed to show the finest details during minimally invasive procedures such as endoscopy or laparoscopy. This monitor will accept multiple video signals, and has layout options for PIP and PBP. When two images ...

... Endoscope Monitor adopt widescreen full HD LCD panels with accurate color rendering, excellent layering, smooth and dynamic images and an expanded visual scope.

Technical data:15" LCD screen, Dimension ratio: 4:3Input signal: DVI , VGA,S-VIDEO,CVBSPower supply:AC100~240V 50/60HZPower:40VAHorizontalResolution:1024×768

FD-21"" medical monitorTechnical data:21" HD LCD screenDimension ratio: 16:9Input signal: DVI,VGA,S-VIDEO,CVBSPower supply:AC100~240V 50/60HZPower:40VA,Horizontal Resolution:1280×1024

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This 55-inch medical grade widescreen LCD monitor can display very high quality 4K Ultra HD color video images in 3D and 2D from endoscopic/laparoscopic cameras, surgical microscopes ...

This 31-inch medical grade widescreen LCD monitor can display very high quality 4K Ultra HD color video images in 3D and 2D from endoscopic/laparoscopic cameras, surgical microscopes ...

This 55-inch medical grade LCD monitor can display very high quality two-dimensional color video images with 4K resolution from a wide range of medical imaging ...

The medical 21.5" PanelPC with touchscreen used in the EndoFLEX and EndoDESK systems facilitate the compilation of compact, high-performance endoscopy systems.

... abundantly in the display. Long-term overexposure to blue light could lead to an increased risk of macular degeneration ,glaucoma, cataracts, and other retinal eye degenerative diseases. Beacon"s low blue light diagnostic ...

... Designed and built for medical use, it is FDA listed, TUV certified, and CE marked, offering patient safety, clinical performance, and durability compared to non-medical grade displays. ...

... high brightness and contrast ratios, and, even over years of use, its auto-calibration capability ensures consistency in diagnostic quality images. Confidence is elevated and workflow is enhanced with our wide range ...

The 104k series imaging system is composed of a light source(OPTO-LED104K), an image processing unit(OPTO-CAM104K), and a camera head(OPTO-CHD104KH), as ...

Estone Technology "s DT-240 dual-functional LCD monitor can switch between regular color monitor and DICOM Part 14 compliant grayscale medical display easily with one-click ...

... ensure the consistency of medical image contrast, for a variety of medical imaging in the diagnosis and comparative analysis, improve the accuracy of medical diagnosis, ...

Barco"s extensive range of high-precision display systems up to 58 inches facilitates accurate and efficient procedures for a range of medical disciplines.

IKEDA Medical Endoscope Monitor adopt widescreen full HD LCD panels with accurate color rendering, excellent layering, smooth and dynamic images and an expanded visual scope.

The 32-inch 4K medical endoscope monitor adopts a new process design, large screen, high-transparent glass, and ultra-high-resolution 4K images (3840x2160) that can provide in-depth details and a sense ...

LCD (liquid crystal display) is the most widely used display technology. They are used for automotive, appliance, telecommunication, home appliance, industrial, consumer electronic, military etc. But LCD displays have some drawbacks, such as slow response, narrow viewing angle, lower contrast etc. One annoying phenomenon often complained about by users is image sticking.

If a fixed image remains on a display for a long period of time, the faint outline of that image will persist on the screen for some time before it finally disappears. Normally, it happens to LCD and plasma screens, but for the purpose of our discussion, we will focus on TFT LCD displays. Image sticking is also referred to as “image persistence”, “image retention”, “ghosting” or “burn-in image.”

An LCD screen includes a thin layer of liquid crystal material sandwiched between two electrodes on glass substrates, with two polarizers on each side. A polarizer is an optical filter that lets light waves of a specific polarization pass through while blocking light waves of other polarizations. The electrodes need to be transparent so the most popular material is ITO (indium tin oxide). Since an LCD can’t emit light itself, normally a backlight is placed behind an LCD screen in order to be seen in a dark environment. The light sources used for a backlight can be LED (light emitting diode) or CCFL (cold cathode fluorescent lamps). The LED backlight is the most popular. Of course, if you want a color display, a layer of RGB color filter can be made into an LCD cell. A touch panel can also be added in front of an LCD display.

When an electric field is applied to the liquid crystal molecules, they become untwisted. When the polarized light reaches the layer of liquid crystal molecules, the light passes straight through without being twisted. When it reaches the second polarizer, it will also pass through, meaning the viewer sees the display as bright. Because LCD technology uses electric fields instead of electric current (electron passes through), it has low power consumption.

The cause of LCD image sticking is due to an accumulation of ionic impurities inside the liquid crystal materials. When slight DC voltage occurs, the charged impurities will move the electrodes and build up a reversed voltage field. When the power is removed, the reversed voltage will kick in to make the LCD molecules twisted different from the other part of the LCD, which shows up as the image sticking. The longer the time, the more impurities will migrate, the larger the reversed voltage will be, and the imaging sticking will appear worse.

If a static image must be displayed, try to use block patterns instead of distinct border lines. Try to use medium gray hues and use colors that are symmetric to the middle grey level at the boundary of two different colors. Gradually shift the border lines once in a while.

For LCD manufacturers, try to protect liquid crystal materials exposed to the air by using nitrogen gas or dried air to avoid absorbing moisture that can create a huge amount of impurities in the liquid crystal material, as water is an excellent solvent. Controlling the humidity of the fab is also very important, as is selecting the right liquid crystal materials and their manufacturers. Different liquid crystal materials have different moisture absorbing abilities. Different liquid crystal material factories have different capabilities in terms of controlling impurities. Despite the fact that high purity can mean high in cost, using higher purity liquid crystal materials and designing the circuitry to get rid of DC in LCD display drivers can avoid an image sticking issue.

Unlike the “burn-in” issue common with CRTs, an image sticking issue is not permanent. It will eventually recover after some time. One way to expedite erasing a retained image is to have a screen on in an all-black pattern for 4-6 hours. If you want to make it even faster, the display can be put into an environment with a temperature of around 35 to 50°C for 1-2 hours. As this elevated temperature is within the working temperature range, it will not damage the LCD panels.

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