liquid crystal display is a thin film transistor type liquid crystal display, which is “true color” (TFT). TFT liquid crystal has a semiconductor switch for each pixel, and each pixel can be directly controlled by dot pulse, so each node is relatively independent and can be controlled continuously, which not only improves the response speed of the display screen, but also can be precisely controlled Display color gradation, so the color of TFT liquid crystal is more true.

In the fierce competition of many flat panel displays, why TFT-LCD can stand out and become a new generation of mainstream displays is by no means accidental, it is inevitable for the development of human science and technology and the development of thinking patterns. Liquid crystal has successively avoided the difficult light-emitting problem, and used the excellent characteristics of liquid crystal as a light valve to decompose the light-emitting display device into two parts, that is, the light source and the control of the light source. As a light source, it has achieved brilliant results in terms of luminous efficiency, full color, and longevity, and it is still deepening.

Since the invention of LCD, the backlight source has been continuously improved, from monochrome to color, from thick to thin, from side-mounted fluorescent lamps to flat-panel fluorescent lamps. The latest achievements in light-emitting 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 has been realized, and the light of the liquid crystal display has been solved. The cooperation of the valve and the controller enables the advantages of liquid crystal display to be realized.

Original Resource：https://www.chance-display.com/news/what-is-a-tft-lcd-screen/

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