In the past, OLED has not been popularized in the market. The main problem is that most of the OLED samples developed in the early technology are mostly monochromatic. Even if the multi-color design is adopted, its color materials and production technology often limit the diversity of OLED color development. . In fact, the image generation method of OLED is the same as that of CRT display, which uses three-color RGB pixels to form a color pixel; because the OLED material reacts linearly to the current, it can display different colors and grays under different driving currents. Order. The characteristic of OLED is that its core can be very thin, and the thickness is one third of that of current liquid crystal. OLED is a solid component with good impact resistance and adaptability to harsh conditions. OLED is mainly self-learning, so there is almost no problem of viewing angle. Compared with LCD technology, the Display Screen is clearly visible even when observing in detail. OLED components are self-explanatory and control voltage. The reaction rate is much faster than using liquid crystal elements. It is more suitable for high-definition TV. At the end of 2007, SONY launched the 11-dimensional OLED TV XEL-1 response speed. The LCD display is 1000 times faster. Another feature of OLED is its ability to adapt to low temperatures. The old liquid crystal technology drops to minus 75 degrees, and OLED can display normally until the circuit is damaged. In addition, OLED has higher efficiency than liquid crystal, lower power consumption, and can be manufactured on substrates of various materials, and can even be changed to a flexible display, and the application range is increased. Compared with LCD, OLED is more dominant. A few years ago, the service life of OLED was still difficult to meet the requirements of consumer products (such as PDA, mobile phone, digital camera, etc.). However, there have been significant breakthroughs in recent years. Many mobile phones OLED screen has been adopted, but the price is still much more expensive than LCD, which is also waiting for breakthrough in mass production technology in the future. OLED lighting principle HIL: Hole Inject Layer (HIL) HTL: Hole Transport Layer (HTL) EML: Emitting Layer (EmitTIng Layer; EML) ETL: Electron Transport Layer (ETL) EIL: Electron Inject Layer (Electron Inject Layer; EIL)
TFT (Thin Film Transistor) is a thin film field effect transistor. The so-called thin film transistor means that each liquid crystal pixel on the Liquid Crystal Display is driven by a thin film transistor integrated behind it. This can display screen information at high speed, high brightness, and high contrast. TFT is an active matrix liquid crystal display.
The TFT-LCD liquid crystal display is a thin film transistor type liquid crystal display, also known as "true color" (TFT). TFT liquid crystal has a semiconductor switch for each pixel, and each pixel can be directly controlled by dot pulses, so each node is relatively independent and can be continuously controlled, which not only improves the response speed of the display, but also can be accurately controlled Display color gradation, so the color of TFT liquid crystal is more real.
In the fierce competition among many flat panel displays, why TFT-LCD can stand out and become the next-generation mainstream display is by no means accidental, it is the inevitable development of human technology and thinking mode. The liquid crystal has avoided the difficult light-emitting problem successively, and the light-emitting display device is decomposed into two parts by using the excellent characteristics of the liquid crystal as a light valve, namely the light source and the control of the light source. As a light source, brilliant results have been achieved in terms of luminous efficiency, full color, and life, and they are still being deepened. Since the invention of LCD, the backlight has been continuously improved, from monochrome to color, from thick to thin, from side fluorescent lamp type to flat fluorescent lamp type. The latest achievements in luminous light sources will provide new backlight sources for LCDs. With the advancement of light source technology, newer and better light sources will appear and be applied to LCDs. The rest is the control of the light source, the technology and process of the semiconductor large-scale integrated circuit are transplanted, the thin film transistor (TFT) production process has been successfully developed, the matrix addressing control of the liquid crystal light valve is realized, and the light of the liquid crystal display is solved. The cooperation of the valve and the controller enables the advantages of the liquid crystal display to be realized. Tft Display,Tft Display Clear,Edp Tft Display,1.8 Inch Clear Tft Display ESEN Optoelectronics Technology Co., Ltd, , https://www.esenoptoelectronics.com