液晶电视的原理与维修（The principle and maintenance of LCD TV）.docVIP

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液晶电视的原理与维修（The principle and maintenance of LCD TV）.doc

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液晶电视的原理与维修（The principle and maintenance of LCD TV）

液晶电视的原理与维修（The principle and maintenance of LCD TV） Principle and maintenance of LCD TV.Txt The principle and maintenance of LCD TV Liquid crystal: also known as LCD, is the use of liquid crystals in the role of voltage imaging under the principle of light. Composition of the liquid crystal screen has three kinds: red, green and blue three colors, called them, according to a certain order, to stimulate the liquid crystal by the voltage, can show different colors, different collocation ratio can show the myriads of changes in color. Therefore, the precision to point LCD TV is higher than the progressive ordinary tv. High resolution, high brightness, wide viewing angle, vivid image, fine quality and rich stereoscopic LCD TV is the first impression to the audience; and light, energy saving, no flicker, no radiation is also disdain for the traditional CRT TV LCD TV; LCD TV at the same time, the interface is also very rich, can be connected to the computer, DVD audio and video equipment, now some manufacturers will also integrate the function of the Flash card reader into the LCD TV, the LCD TV has more digital. Using the same display technology as laptop and desktop computer flat panel display. Its vivid picture is produced by a costly special glass panel and transistors on it. But this TV is expensive, especially for large-size LCD TVs over 40 inches. Some LCD TV viewing from the side, the picture is not very clear. At present, the LCD TV in the domestic market mainly to 15-32 inches, but also has 42 inches of super LCD TV sales. 1., the display machine without electricity, this is a should say is very simple fault, general LCD display extension power and external power supply of two kinds, more common outside the machine. Regardless of the power supply, its structure is much simpler than the power supply of the CRT display, and the vulnerable parts are usually small components, such as the safety tube, the input inductor, the switch tube, the zener diode, etc.. The fa