Technology that will replace LCD and OLED-screen smartphone
Devices / / December 19, 2019
Largely due to the liquid crystal (LC) were born smartphones. Technology has created the first truly mobile computing devices - laptops. After 30 seconds the LCD screen plus years is still equipped with most laptops, tablets, smartphones, and other similar products. Almost all other devices use a relatively new organic LEDs (OLED).
There are four basic parameters for evaluating the displays in the consumer market: picture quality, power consumption, size and weight. Every screen should have a decent picture, but the display of the mobile device must consume more and a minimum battery charge, as well as to be as thin and light as possible.
It is possible to replace the OLED-display LCD in some products. Further higher quality image, OLEDs provide the opportunity to smartphone very thin, light and more energy efficient compared to liquid crystals.
But even OLED-screens are not ideal. Over time, they may fade, with the three primary colors lose their brightness at different speeds. Gradually distorted and color balance. OLED-displays are more expensive than LCD, so can be placed in high-end smartphones. But it can replace these technologies come to something more advanced?
Several unsuccessful attempts
a number of new developments has been announced over the past 10 years. Almost each positioned as a replacement LCD and OLED. However, while the revolution did not happen, although the major players in the market and invest in the development of these tens of millions of dollars.
Philips has introduced a few years ago the display based on electrowetting. It works with a liquid control by electric charges. To bring technology to market, Philips integrates in 2006 the company opened LiquaVista. Her shields were required to have excellent color, viewing angle and response time and consume less power than conventional LCD displays.
In 2010, the company and its technology bought Samsung, which in 2013 sold the assets of Amazon. But while still nothing is known about the devices with displays based on electrowetting. However, according to the official website, Liquavista is still functioning and is likely to be working on the technology.
Not all fared so well. From 2004 to 2011 chip manufacturer Qualcomm bought two startups - Iridigm and Pixtronix. They worked on two very different display technology based on micro-electromechanical systems. By 2015, both projects have been closed.
Another similar technology - optical shutter time division multiplex (TMOS) - Houston showed UniPixel Displays. But it failed to bring its development to the market. Now the company produces optical film and glass for displays, but the TMOS long forgotten.
A glimmer of hope - ordinary LEDs
However, there is at least one technology that is interested industry giants. It promises a perfect color reproduction, contrast, viewing angles, brightness, response time and energy efficiency. This light-emitting diodes (LED), are used in modern light bulbs.
LED-screens provide everything you need.
LEDs are available in different colors, including basic red, green and blue. They have no problem with viewing angles, since it emits technology. As in the case of the OLED, the contrast range and the dynamic range is more than good. LEDs do not require color filters and polarizers, turned on and off in a matter of microseconds. So what's the catch?
In fact, LED-screens a lot, but they have nothing to do with mobile devices. This is a huge color displays in sports arenas, squares, and other lively places.
The problem is that the LEDs fit in the screen of the smartphone is incredibly difficult. Even for a simple display with a resolution of 1280 × 720 pixels need to nearly three million light-emitting diodes - to 920 thousand red, green and blue emitters. In this case, the diodes of different colors are made of very different materials from each other.
However, progress in this area is moving forward. In 2014, Apple bought LuxVue Technology, developer microLED-displays. Last year, Facebook has acquired a startup InfiniLED. Taiwanese manufacturer Foxconn Electronics and Sharp recently bought them invested in eLux - an offshoot of the US Sharp divisions. Even the Samsung, a leader in OLED-screens, aimed at PlayNitride purchase - another startup that deals microLED.
Experts argue that the commercialization of the technology needed for at least another five years. But the fact that the game entered the large companies, can greatly speed up the process.
There is no guarantee that the LED displays supplant the dominant LCD and OLED-displays. But in the next year or two for the LED should be monitored carefully.
See also:
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