On June 10, 2010, the “6th China LED Industry Theme Summit Forum†hosted by Gaogong LED was successfully held at the Guangzhou China Import and Export Fair. The conference was held concurrently with the 2010 Guangzhou International Lighting Exhibition. The topics covered include the talent, market, investment, technology, EMC model and other hot topics in the current LED industry.
Zhang Jiliu, Chairman of Zhongwei Optoelectronics
Mr. Tang Guoqing, General Manager of CREE China Market, Zhang Jiliu, Chairman of Zhongwei Optoelectronics, Gong Weibin, General Manager of Ruifeng Optoelectronics, He Wenming, Chairman of Zhongke Wanbang, Xiong Kecang, Chairman of Lelei Optoelectronics, and Zhang Hui, Deputy General Manager of Guanyu Technology Co., Ltd. Li Yimin, vice president of TCL Lighting, Ye Rongnan, professor-level senior engineer of Fujian Optoelectronics Industry Association, Deng Hao, lawyer of Cubic Law Firm, Zhang Ziqi, general manager of Sunda Baili, Chen Bin, general manager of Zhonglong Transportation, and LED Industry Research Institute (GLII) Dr. Zhang Xiaofei and other experts made a wonderful theme report in the forum.
The conference attracted 600 spectators. They are senior managers, technical experts, and members of investment institutions and government agencies from foreign lighting companies.
“With the continuous improvement of LED technology, LED efficiency and brightness continue to increase, LED has gradually been applied to various types of light sources, such as backlights, landscape lights, lights, street lights, indoor and outdoor displays, and even now into home lighting. The development of LED has become more and more extensive. The new generation of lighting sources has penetrated into an irreplaceable position, and the quality control of LEDs and the visual requirements for people are getting higher and higher.†Zhang Jiliu, Chairman of Zhongwei Optoelectronics Co., Ltd. If so.
Zhang Jiliu believes that since the composition of LEDs is a single point source electronic component, when the LED needs to be used as an array display, a screen component, or an illumination source, the human visual perception demands color and brightness, whether it is color or brightness. Unevenness can give people an uncomfortable feeling. The quality control of LEDs and the visual requirements for people are getting higher and higher. The current application requirements for LEDs are mainly achieved by controlling and sorting colors and brightness. The sorting solution can be implemented from the following schemes: chip-based test sorting; test control and sorting in the packaging process; and uniform test sorting of the lamps.
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.
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