[abstract] what is the highest quality display device in the market today? In terms of technology, OLED is undoubtedly the most powerful competitor. Especially on the battlefield of large-screen TV, if the core indicators such as color performance, contrast, response speed and Angle of view are discussed, OLED has few rivals. In the small screen mobile phone market, OLED has also become the flagship model of the dazzling configuration, only insufficient.
Beijing time 01/01/2008 news, Chinese touch screen, from the 2-inch screen to wallpaper TV OLED big screen of those things in today's market top quality level display equipment? In terms of technology, OLED is undoubtedly the most powerful competitor. Especially on the battlefield of large-screen TV, if the core indicators such as color performance, contrast, response speed and Angle of view are discussed, OLED has few rivals. In the small screen mobile market, OLED has also become the flagship model of the dazzling configuration, only the lack of the computer display market OLED products are still very few. Although in price, the products cover areas such as still need to face the challenge, but at the end of the industry almost went to the technology development mature display technology, is glow vitality of OLED and short time to catch up on the board. Today we're going to talk about OLED in the big screen market.
Display technology is the most important link between the virtual world and the real world, showing that the progress of technology is also the development direction of industry. The large-volume and heavy-weight imaging tube technology has undertaken the display task for nearly 100 years, and was gradually replaced by liquid crystal in the past decade. Represented by LCD flat-panel display technology in the aspect of size, weight and large size display are those of tube, but quality performance ability or experienced a hard journey, during plasma display technology in domestic areas even once the LCD has formed a threat. Today, OLED again challenges liquid crystal, and seems to win the hand.
In 2017, apple's latest iPhone X USES an OLED screen to make OLED more familiar. Prior to that, many of samsung's flagship phones had already used their own OLED screens, and samsung had mastered the art of making and applying OLED screens in mobile devices. But people are not satisfied with a small screen in a few inches of space, a few inches of big screen TV also need better Display technology, the first to focus on their LG Display is currently the most powerful of the OLED screen manufacturers and technology enabler.
What is an OLED?
The core of the OLED is a transparent organic semiconductor polymer that makes the material into a thin film and USES electric fields on both sides to produce light. In the 1980s, kodak scientists continued their research based on the discovery of electroluminescence in organic materials, successfully creating a practical OLED product. The tiny OLED luminescent cells are arranged tightly on the thin film substrate, arranged between two layers of conductors and arranged for the corresponding circuit, which completes the manufacture of OLED display panels. Because the OLED panel structure is very simple in theory, it can make extremely thin products. Currently, OLED large-screen panels have a thickness of 0.95 mm.
Now the mainstream applications of LCD panel, by contrast, the problem is that the LCD itself does not enlighten, also need to back light source, light guide plate, color filter and other complex structure to form a complete screen to display the image. The OLED units, which make up the display panel directly as the luminescent pixels, can even be printed on the flexible substrate. It is not difficult to create a large, curved screen that is as thin as paper with an OLED panel. Now the thinnest OLED TV in the world is only 2.57mm thick (2.57mm is the thickness of the OLED TV, the panel is 0.95mm), and the LCD panel is hard to reach.
OLED display technology has grown to a mature level today, with industry consensus that it can display the best image quality, surpassing all competitors in the current market. Practical display technology, CRT tube has been eliminated, plasma panels has dim and leave, although at present the highest share of LCD LCD performance is very good, but it was already approaching the limits of technology, they are all hard to in absolute quality and big challenge at a time when rising OLED screen performance.
The absolute advantage of spontaneous light display technology.
The display effect of CRT technology has been missed by the old players, and its core competitiveness is because every point on the picture tube can be excited by the electron beam. Plasma technology and OLED technology are also praised for their self-illumination. Heyday of LCD technology has various advantages, but it depends on the liquid crystal molecules of deflection to control the back light through the light to show the image of performance in color, contrast, response speed and Angle of congenital deficiency, etc.
LCD has a congenital deficiency in the aspects of perspective and color performance.
Take contrast. LCD backlight cannot control for each pixel, shows black relies mainly on the deflection of the liquid crystal molecules to shelter when backlit, so the LCD panel display black how many there will be some light leaked images, cannot get acme black field. And the spontaneous light display technology can turn off the individual pixels and let the brightness go to zero. In theory, the contrast of spontaneous light display technology can be infinite. In terms of the actual display effect, video content with dark scenes is the biggest challenge of liquid crystal technology, while spontaneous light technology can easily cope with it.
The broad perspective is another advantage of OLED.
Another important requirement on the big screen is the wide view that users should not be able to view the screen in different directions with significant brightness, color, and contrast. For autonomous light technology, it's not a problem that every pixel is a light bulb, and it's all about light. However, the liquid crystal relies on the deflection direction to control the light, which leads to the obvious problem of early liquid crystal screen perspective, and then the problems are basically solved by changing the direction of liquid crystal alignment and other improvements.
The principle of self-illumination also enables the device to use this technology to have excellent response speed, the switching time of different brightness is in the millisecond, and the image showing high frame rate is displayed without any drag. Liquid crystal molecular deflection is a "mechanical" process, it takes more time. Moreover, the improvement of liquid crystal deflection speed can sometimes conflict with the Angle of view and contrast, and only a compromise result can be obtained.