Mobile phone screens, also known as display screens, are used to display images and colors. The screen size is measured diagonally, usually in inches, and refers to the diagonal length of the screen. Screen material With the gradual popularization of mobile phone color screen, mobile phone screen material is becoming more and more important.
Color screens of mobile phones vary due to different LCD quality and research and development technology. There are roughly TFT, TFD, UFB, STN and OLED. In general, the more colors you can display, the more complex the image, and the richer the layers.
Screen material
With the gradual popularization of mobile phone color screen, the material of mobile phone screen is becoming more and more important. Color screens of mobile phones vary due to different LCD quality and research and development technology. There are roughly TFT, TFD, UFB, STN and OLED. In general, the more colors you can display, the more complex the image, and the richer the layers.
In addition to these categories, other LCDS can be found on some mobile phones, such as Japan’s SHARP GF screen and CG(continuous crystalline silicon)LCD. GF is an improvement of STN, which can improve the brightness of LCD, while CG is a high precision and high quality LCD, which can reach the resolution of QVGA(240×320) pixels.
Fold the TFT screen
TFT(Thin Film field effect Transistor) is a kind of active matrix liquid crystal display (LCD). It can “actively” control individual pixels on the screen, which can greatly improve reaction time. Generally, the reaction time of TFT is relatively fast, about 80 milliseconds, and the visual Angle is large, generally can reach 130 degrees, mainly used in high-end products. The so-called thin film field effect transistor means that each LCD pixel point on the LCD is driven by the film transistor integrated in the back. Thus can achieve high speed, high brightness, high contrast display screen information. TFT belongs to the active matrix liquid crystal display, which is driven by the “active matrix” in technology. The method is to use the transistor electrode made by thin film technology, and use the scanning method to “actively pull” to control the opening and opening of any display point. When the light source irradiates, it first shines upward through the lower polarizer and conducts light with the help of liquid crystal molecules. The purpose of display is achieved by shading and transmitting light.
Tft-lcd Liquid crystal display is a thin film transistor type liquid crystal display, also known as “true color “(TFT). TFT liquid crystal is provided with a semiconductor switch for each pixel, each pixel can be directly controlled by point pulse, so each node is relatively independent, and can be controlled continuously, not only improve the reaction speed of the display screen, but also can accurately control the display color level, so the color of TFT liquid crystal is more true. TFT liquid crystal display is characterized by good brightness, high contrast, strong sense of layer, bright color, but there are also some shortcomings of relatively high power consumption and cost. TFT liquid crystal technology has accelerated the development of mobile phone color screen. Many of the new generation of color screen mobile phones support 65536 color display, and some even support 160,000 color display. At this time, the advantage of high contrast and rich color of TFT is very important.
Post time: Mar-21-2023