15 Facts About LCD


Small LCD screens are common in LCD projectors and portable consumer devices such as digital cameras, watches, digital clocks, calculators, and mobile telephones, including smartphones.

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LCD screens are used on consumer electronics products such as DVD players, video game devices and clocks.

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LCD screens have replaced heavy, bulky cathode-ray tube displays in nearly all applications.

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LCD screens are available in a wider range of screen sizes than CRT and plasma displays, with LCD screens available in sizes ranging from tiny digital watches to very large television receivers.

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The LCD screen is more energy-efficient and can be disposed of more safely than a CRT can.

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An LCD Module is a ready-to-use LCD with a backlight.

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In 2007 the image quality of LCD televisions surpassed the image quality of cathode-ray-tube-based TVs In the fourth quarter of 2007, LCD televisions surpassed CRT TVs in worldwide sales for the first time.

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Today, most LCD screens are being designed with an LED backlight instead of the traditional CCFL backlight, while that backlight is dynamically controlled with the video information .

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Standard television receiver screen, a modern LCD panel, has over six million pixels, and they are all individually powered by a wire network embedded in the screen.

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Some LCD panels have defective transistors, causing permanently lit or unlit pixels which are commonly referred to as stuck pixels or dead pixels respectively.

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LCD panels are more likely to have defects than most ICs due to their larger size.

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Some manufacturers, notably in South Korea where some of the largest LCD panel manufacturers, such as LG, are located, now have a zero-defective-pixel guarantee, which is an extra screening process which can then determine "A"- and "B"-grade panels.

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LCD panels have defects known as clouding, which describes the uneven patches of changes in luminance.

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In 2009 Kent demonstrated the use of a ChLCD to cover the entire surface of a mobile phone, allowing it to change colors, and keep that color even when power is removed.

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Production of LCD screens uses nitrogen trifluoride as an etching fluid during the production of the thin-film components.

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