fading lcd display supplier

(Bloomberg) -- Japan Display Inc., once one of Apple Inc.’s key suppliers, sees a new market for its liquid crystal displays after ceding the smartphones arena to rival OLED screens: the niche yet growing virtual reality business.

The Tokyo-based LCD specialist expects its favored display technology to become the standard for VR because it can achieve higher resolution than OLED while keeping costs reasonable. That advantage is imperceptible in mobile devices but becomes critical in the more demanding VR scenario.

Many of the first wave of headsets released five years ago used OLED screens -- or organic light-emitting diodes, the same as used across most flagship phones today -- for their responsiveness to fast-moving action, a common feature of gaming experiences. But major players such as HTC Corp. and Facebook have moved to LCDs for their latest products, betting on the more economical standard to improve the user experience and immersion. Industry researchers at Omdia saw LCD adoption rise in 2020 and forecast the technology will dominate the category over the next five years.

One important holdout remains: Sony Group Corp. plans to use Samsung Display Co. OLED panels in its next-generation PlayStation VR goggles, according to people with knowledge of the matter. The Japanese console giant sold more than 5 million units of the original PS VR, launched in 2016, and is aiming to release the successor in the holiday period next year, the people said, asking not to be named discussing internal plans.

To grab a bigger share of the market, JDI is working to convince VR companies it can solve two of their biggest hurdles: display quality and cost. Because VR goggles place the screen so much closer to the human eye, they require higher resolution and clarity than mobile screens, achieved by packing pixels closer together. JDI is capable of producing displays with 1,200 pixels per inch, more than double the typical density of top-tier phone panels, according to its chief VR headset engineer, Yoshihiro Watanabe.

The threshold for a high-quality VR experience is to have a display with at least 1,000 pixels per inch, Watanabe said, adding that JDI is one of the few display makers -- if not the only -- that can mass-produce such panels at a reasonable production yield.

JDI was created in 2012 by the combination of the display-making units of Sony, Hitachi Ltd. and Toshiba Corp., with much of its revenue since then coming from mobile handsets, especially iPhones. More than half of its total sales used to come from the Apple business, but the iPhone maker’s adoption of OLED technology left the company reeling.

Unable to develop its own OLED panels to a competitive level with leader Samsung Display, JDI has seen its revenue from phones drop from 838 billion yen ($7.7 billion) in the year ended March 2016 to an expected 81 billion yen this fiscal year. The firm sold the factory it had used mainly to produce panels for Apple to Sharp Corp. last year.

It’s difficult to say that LCD is in all cases superior to OLED for VR, Hayase said, because OLED offers better contrast in addition to faster response times. The key for JDI will be to establish a solid footing in the industry by addressing customer needs that other suppliers would turn down owing to the small market size, he added. JDI has experience of doing that from its business supplying display panels for digital cameras.

Liquid-Crystal Displays, or LCDs, provide outstanding quality and unparalleled clarity in visual media. LCD displays come in many forms, from television sets to smartphones, having set a golden standard for entertainment and visual technology. These displays operate with common parts and often are simple to repair if they begin to dim.

Exercise caution when determining how and even if you should repair a faint LCD screen. Some screens lend themselves more easily to repair than others, while you should not attempt to repair others at all. You should handle old screens, such as classic cellphones or any older or legacy LCD screens, with great care. Consider asking a professional to help you with repairs, as you could inflict permanent damage to these items. Carelessness and ignorance can also permanently damage modern screens as well. If your screen remains under a warranty, don"t void it by opening the device. Contact your manufacturer and have the company repair it for you.

A common culprit for a dim LCD screen lies in a malfunctioning fluorescent backlight, known as a CCFL failure. Every LCD varies in construction and size, so consult your manufacturer"s documentation on how to remove any outer casing and, if necessary, the screen itself, when working with a laptop or computer monitor. Other components, such as a copper ground or an LCD controller board, may obstruct your path. Take careful note of these items and their proper locations, then gently move them out of the way until you can access the CCFL bulb. The bulb may rest in its own slot, depending on the type of screen you"re working with. On either end, gently remove the rubber caps from the old bulb and place them on the new bulb. A power cable should attach at one end and may require you to solder it in place. When complete, carefully replace the CCFL and all other components within the display module, then test your LCD display module. It should return to its former brightness.

If a new bulb did not correct the problem, other hardware issues can cause the screen to dim. Take your display module apart once again and examine the power cord that attaches to the CCFL to ensure it attaches properly. It should make contact with metal or a lead on the bulb itself and should not attach to the rubber caps which will prevent or dampen the flow of electricity to the bulb. If this does not correct your problem, instead examine your LCD"s power supply. When dealing with a TV or stand-alone monitor, this becomes vitally important. You may need only to replace a cord that plugs into an outlet. If more severe, an entire power board inside an LCD TV may require replacement. If your device no longer remains under warranty, refer to your manufacturer"s documentation for more information.

Other components can contribute to a faint display on an LCD screen, including faulty capacitors, transistors and inverters. With proper electrical equipment, such as an voltmeter, you can measure the flow of electric current through some of these components to determine proper operation. While it is possible to replace these components if you possess adequate experience, you can also permanently damage your LCD device if you make a mistake. Consider a repair shop if you do not have professional training.

LCDs used in outdoor situations have many concerns to deal with in addition to any that they might normally encounter during indoor use. Initially some concerns are weather related such as moisture in the air or extreme temperatures. Another concern that is often not understood or just not known about at all is sunlight damage.

Liquid crystal displays use organic components that are susceptible to UV (<400 nm) and IR (>750 nm). These bandwidths of radiation have an observable impact on the organic components in LCDs. Extended exposure has been known to cause a color shift and a washed out look to images displayed with the LCD.

Over time the UV and IR radiation degrade the organic components causing them to fail to function properly. The amount of time it takes can vary depending on brand and model as well as specific weather conditions the display has been exposed to. For instance some atmospheric disturbances can reduce the amount of Ultraviolet that is transmitted to the display.

In any case it is important to protect your display from the elements, especially if it is going to be exposed to harsh environments not intended by the manufacturer. One way to do this would be to utilize a Hot Mirror with a UV blocker. This will significantly reduce the amount of IR radiation between 750 nm and 1200 nm, as well as the UV radiation below 400 nm. If the LCD is going to be used outdoors for extended periods then an extended hot mirror may be necessary, which extends the bandwidth protection out to 1600 nm and will help reduce some of the longer wavelength IR damage.

Another concern with liquid crystal displays are their susceptibility to overheating due to excess IR radiation. The LCD is intended to operate within a certain range of temperatures according to the manufacturer’s instructions and outdoor use can lead to higher than normal temperatures. The display being exposed to excessive heat can cause the crystal to become isotropic and fail to perform properly. A hot mirror can help alleviate these concerns as well by reducing the amount of infrared radiation that heats the display.

Many Apple products use liquid crystal displays (LCD). LCD technology uses rows and columns of addressable points (pixels) that render text and images on the screen. Each pixel has three separate subpixels—red, green and blue—that allow an image to render in full color. Each subpixel has a corresponding transistor responsible for turning that subpixel on and off.

Depending on the display size, there can be thousands or millions of subpixels on the LCD panel. For example, the LCD panel used in the iMac (Retina 5K, 27-inch, 2019) has a display resolution of 5120 x 2880, which means there are over 14.7 million pixels. Each pixel is made up of a red, a green, and a blue subpixel, resulting in over 44 million individual picture elements on the 27-inch display. Occasionally, a transistor may not work perfectly, which results in the affected subpixel remaining off (dark) or on (bright). With the millions of subpixels on a display, it is possible to have a low number of such transistors on an LCD. In some cases a small piece of dust or other foreign material may appear to be a pixel anomaly. Apple strives to use the highest quality LCD panels in its products, however pixel anomalies can occur in a small percentage of panels.

In many cases pixel anomalies are caused by a piece of foreign material that is trapped somewhere in the display or on the front surface of the glass panel. Foreign material is typically irregular in shape and is usually most noticeable when viewed against a white background. Foreign material that is on the front surface of the glass panel can be easily removed using a lint free cloth. Foreign material that is trapped within the screen must be removed by an Apple Authorized Service Provider or Apple Retail Store.

If you are concerned about pixel anomalies on your display, take your Apple product in for closer examination at an Apple Store, Apple Authorized Service Provider, or an Independent Repair Provider. There may be a charge for the evaluation. Genuine Apple parts are also available for out-of-warranty repairs through Self Service Repair.*

In LCD the light transit through two polarizers, which are arranged perpendicular, then through the liquid crystal layer. The layer can block the transition of the light or change polarization. Finally, the light falls on the color filters, which give it a set colorcreating the image.

The LCD TFT screens are built of thin-film transistors. The transistor is produced by chemical vapor deposition (CVD), based on the use of liquid hydrogen mixture and silicon mixture in an organic solvent, and using the rotation application method of the thin semiconductor.

In the TFT matrix, each pixel is controlled by four transistors, whereone of them is responsible for brightness, and three remain for basic color (red, blue, green). As a result, this solution allows the high resolution, better color and generally higher parameters of displayed images  – comparing to common LCD matrix.

Because of the material the TFT is built from, which isglass, TFT displays havelow mechanical toughness,so can be easily damaged. The most popular damage of TFT is:

We recommend that you are always careful during the process of assembling the module. This special treatment is necessary to protect the matrix of the display against being hit or put under too much pressure.

The module can be held strictly by the housing, and the unnecessary thrust on display should be avoided. The disassembling of the display housing is not recommended, because this process is very destructive and in most cases, it will leave you with a damaged TFT .

Image burn-in, also referenced as screen burn-in or ghost image, is a permanent discoloration of sections on an electronic display caused by increasing, non-uniform use of the screen.

The term burn-in dates back to when old monitors using phosphor compounds that emit light to produce images lost their luminance due to severe usage in specific display areas.

Most of the time, these guides explain how image retention works and how you can speed up its recovery process. We want to clear up any confusion you might have about image burn-in and image retention on LCD and OLED displays.

Image retention, also known as ghosting or image persistence, is the temporary effect of images remaining visible on LCDs or OLEDs for a short period, usually a few seconds.

Image retention doesn"t require any intervention from the user to make it go away – it"ll do that by itself. Retention will often occur before burn-in does on newer display technology like our

using a screen saver, cycling various graphics on the screen to exercise the pixels, and powering off the display whenever possible will help clear the image retention on your display.

When LCD or OLED pixels stay activated in a static position, they"ll eventually become "stuck" in that position. When this happens, you"ll notice a faded, stubborn image that persists on the screen.

After showing a static image for long periods of time, the crystals in a liquid crystal display become weaker to move, and have more difficulty turning from the fully "ON" position to the fully "OFF" position

When pixels fail to activate or deactivate entirely, it results in faded images that won"t clear from the screen. This is common in applications using character LCDs where the alphanumeric characters are updated less frequently.

OLEDs are unique because they don"t need a backlight to light up. Each pixel on the display is a self-illuminating LED, so they generate their own light. However, the pixels inevitably lose their brightness over time. The longer an OLED pixel is illuminated, the dimmer it will appear next to lesser-used pixels.

If a static image stays on an OLED display long enough, the pixels will leave a shadow behind the previous image, even when the display shows something completely different.

Remember: There"s no way to remove or reduce burn-in after it occurs. If a stubborn image persists for extended periods or after restarting your display, you"re likely dealing with image burn-in.

Even the most advanced displays will experience burn-in at some point, but there are some simple actions you can take to extend your screen"s lifespan before burn-in occurs. With the proper practices, you can get years of outstanding performance from your display without any burn-in effects.

If a power cycle isn"t an option, you can use the display ON/OFF command to turn off the display. Alternatively, you can put the display into sleep mode while retaining the display data in RAM.

A screensaver is a good alternative if you can"t turn your display off. For displays that don"t need to be ON at all times, it"s helpful to let the screen rest when not in use.

For an OLED display, decreasing the contrast will lower the brightness and reduce the rate of image burn. More illumination (brightness) requires more current, which reduces OLED pixel lifespans.

For a LCD display, lowering the contrast will put less stress on the liquid crystals and will help to reduce the rate of pixels becoming weak, or sticking.

Remember that image burn-in is not reversible and can not be fixed once it happens. Whether it is a scrolling effect, rotating pixels, using a screensaver, or turning off the screen when not in use, it"s essential to establish image burn-in preventive measures to help extend the lifespan of your display.

"The characteristic of liquid crystals that makes them ideal to be used in display screens is that they align themselves when an external electric field is applied to them. To be more technically specific, these liquid crystals are sandwiched between two pieces of polarized glass ...".

Liquid crystal displays (LCDs) are the most widely used display technology. Their applications cover TV, mobile phone, appliances, automotive, smart home, industrial meters, consumer electronics, POS, marine, aerospace, military etc. LCD screen display problem can occur for several reasons.

Effect of environmental conditions on the LCD assembly. Environmental conditions include both the effects of temperature and humidity, and cyclic loading.

Effect of manufacturing process. With the development of LCD for more than 40 years and the modern manufacturing equipment, this kind if defects are getting rear.

Common failures seen in LCDs are a decrease in screen contrast, non-functioning pixels or the whole display, and broken glass. Different kinds of LCD display problem need to have different kinds of fix methods or make the decision not worthwhile to repair.

Broken glassIf you accidently drop the LCD and you find it broken on the surface but the display still works. You might just break the touch panel; you can find a repair house or find a youtube video to replace the touch panel. If you find the display not showing, especially you find the fluid leaking out. You need to reply the whole display modules.

Dim LCD displayLCD can’t emit light itself. It uses backlight. Normally, the backlight is not fully driven, you can increase the LED backlight to make a dim LCD display brighter. But if you LCD display has been used for a long time, it is possible that the LED backlight has to be the end of life (not brightness enough) if you turn on 100% backlight brightness. In that case to fix LCD screen, you have to find a way to change the backlight. For some display, it is an easy job but it can be difficult for other displays depending on the manufacturing process.

Image sticking (Ghosting)Sometimes, you will find the previous image still appearing at the background even if you change to another image. It is also called burn in. This kind of failure doesn’t need to repair by professionals. You can simply shut off the display overnight, this kind of problem will go away. Please do remember that displaying a static image for a long time should be avoided.

With the modern manufacturing process and design, this kind of failure rarely happens. Normally, it is caused by no power. Please check if the battery dead or adapter (power supply) failure or even check if you have plug in firmly or with the wrong power supply. 99% the display will be back on.

LCD has white screen – If a LCD has a white screen which means the backlight is good. Simply check your signal input sources which are the most causes. It can also be caused by the display totally damaged by ESD or excess heat, shock which make the LCD controller broken or the connection failure which has to be repaired by professionals.

Blur ImagesAs the LCD images are made of RGB pixels, the screen shouldn’t be blur like old CRT displays. If you do see blur images, they might be caused by two reasons. 1) LCD has certain response time, if you are playing games or watch fast action movies, some old LCD displays can have image delays. 2) The surface of the LCD is made of a layer of plastic film with maximum hardness of 3H. If you clean the surface often or use the wrong detergent or solvent which cause the surface damage. To fix damage on LED screen it’s need to be changed with professionals.

If you have any questions about Orient Display displays and touch panels. Please feel free to contact: Sales Inquiries, Customer Service or Technical Support.

I have a cluster from by Golf that has a dead full pixel display. It started off with dead lines (mostly vertical), got worse with hotter days, then died completely (with a little help from my attempts to fix it). It seemed to me when I investigated that the bond between ribbon and display was failing on indvidual lines.

If you figure out how to bond a new display to the circuit board, I"d be interested in getting this cluster repaired so I"d have a spare for when the cluster in the car goes dead (it was the former spare). Of course, if somebody comes up with a good group buy on these again...

SEOUL: Liquid-crystal display (LCD) screens were expected to slowly fade and die, giving way to lighter, thinner and tougher organic light-emitting diode (OLED) panels in everything from smartphones to televisions.

But LCD is refusing to go quietly as its picture quality keeps getting better. At the same time, the major backers of credit card-thin OLED panels — led by Samsung Electronics Co. and LG Electronics Inc. — are struggling to make the technology cheap enough to mass produce. The two South Korean firms this year showcased 55-inch (140 cm) OLED TVs, but priced at around $ 10,000 — 10 times that of an LCD equivalent — they have yet to reach store shelves.

OLED displays, used on Samsung’s Galaxy S and Note smartphones, have been touted as the future display model to replace LCDs across the consumer electronics spectrum — from TVs to computers, laptops, tablets and smartphones. OLED is more energy efficient and offers higher contrast images than LCD, and is so thin that future mobile devices will be unbreakable, and will be able to be folded or rolled up like a newspaper.

But OLED panel makers such as Samsung Display and LG Display have yet to address major manufacturing challenges to lower costs to compete against LCD panels.

At the same time, LCD panels, which are used on 9 of every 10 television sets, are still evolving and show no sign of giving way in this latest battle to set the global standard — less than a decade since LCD effectively killed off plasma screens.

“OLED still has a long way to go to become a mainstream display, as it has to become bigger and improve picture quality,” said Chung Won-seok, an analyst at HI Investment & Securities. “The use of OLEDs will continue to be confined to small displays at least for the next 2-3 years. Its usage as a mainstream TV panel is only likely in 2014, but even then there’s a possibility of intense competition with LCD TVs as that technology keeps improving.”

Far from fading, LCD panels now offer better picture quality — up to four times better than OLED — and use less power, creating robust demand from smartphone and tablet makers.

As has often been the case, Apple Inc. moved the goalposts by upgrading the display resolution for its iPhone and iPad, still the high-end LCD market’s gold standard, prompting rivals to upgrade their display panel qualifications. Analysts at Macquarie predict Apple will adopt high-resolution screens for the MacBook Air and iMac monitor next year, accelerating the industry’s shift to high-resolution displays.

“The pixel war is an absolute bonanza for LCD makers,” said Kim Byung-ki, analyst at Kiwoom Securities. “Manufacturers from LG Display to Samsung, Sharp Corp, AU Optronics Corp. and Chimei (Innolux) all will gradually convert their traditional lines into more high-end product fabs, and that will curtail supply and boost profitability.”

These higher-resolution panels cost more than double the commodity-type LCD screens, boosting panel producers’ profits. Even Samsung, the standard bearer for OLED panels and also a major LCD manufacturer, is actively promoting LCD screens for tablets and laptops over OLED, said a person familiar with the matter, who was not authorized to talk to the media so didn’t want to be named.

Both Sony and LG Electronics now sell ultra HD (high definition) LCD sets that boast four times the picture quality of HD TVs. The two firms, which are selling 84-inch TVs, aim to reduce that size to cater for more popular smaller sets.

Japan’s Sharp is the frontrunner in IGZO technology, which uses indium gallium zinc oxide instead of amorphous silicon, in panel manufacturing. LG Display, a major supplier to Apple, is investing 1.2 trillion won ($ 1.1 billion) by end-2013 in its production of low-temperature poly silicon (LTPS) panels — a technology used to make screens for the iPhone and iPad.

While new technologies can be game-changers, these panels are not simple to produce, limiting availability and driving up manufacturing costs. Some warn of an LCD supply shortage.

“The LCD industry is improving more strongly than expected and panels are likely to be in short supply from 2013, as manufacturers upgrade their lines to increase high-end products. This requires more processing time and steps, reducing total output,” said Kim Dong-won, an analyst at Hyundai Securities.

As LCD prospects improve, LG Display, the world’s top LCD maker, swung to a quarterly profit in July-September, ending a run of seven straight quarterly losses.

LG Display is expected to continue its solid performance, as Apple buys fewer parts from rival Samsung and moves more to high-end displays on a wider range of its products. LG Display shares have risen by around a third in 3 months, double Samsung’s gains. In Taiwan, AU Optronics shares are up 41 percent over that same period and Chimei is up 45 percent. Shares in cash-strapped Sharp hit a 2-month high on Wednesday after the company secured an up to $ 120 million cash injection from Qualcomm Inc, which will help it fund development of its IZGO technology.

“LG Display and its peers are actually sowing the seeds of the next cycle downturn by doing what they always do — wherever they see a profit opportunity, they focus on it, adding capacity and dissipating the excess returns,” said Stanford Bernstein analyst Alberto Moel.

Plazmo is a leading global supplier for warranty repair centers for LCD screens. These repairs can help fix Laptops, Monitors, POS systems, Lottery terminals, Casino Gaming devices, Retail, ATMs, Kiosks, and Medical Terminals, to name a few. These repair centers rely on Plazmo for quality CCFL backlights and LED light bulbs as well as an enormous quantity of products in-stock. Plazmo manufactures and carries replacement pieces for many consumer brands like Acer, ASUS, Dell, HP, Lenovo, Samsung, Sony to name a few.

Offering the right pieces to repair broken and faltering LCD screens rather than replacing the entire unit or terminal when it gets older can help save money. Replacing the lights behind the LCD screen can often fix issues with flickering, dimming or fading.

Plazmo has hundreds of options available for CCFL backlight repairs. If the replacement bulb is hard-to-find, reach out to Plazmo for a custom order. Plazmo will handle the development and prototyping process to create the perfect fit CCFL backlight that fits any system. The custom designs Plazmo offers also include CCFL to LED conversions. These kinds of conversations allow you to update the backlight assembly in your equipment’s LCD screen to a light bulb that offers a longer working life.