LCD

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An LCD is a display device whose function is based on the fact that liquid crystals influence the direction of polarization of light when a certain level of electrical voltage is applied. The LCD display consists of several segments, which can all change their brightness independently of each other. For this purpose, the alignment of the liquid crystals is controlled by means of an electric voltage in each segment. This changes the permeability for polarized light, which is generated by means of a backlight and polarization filters. A further development of the LCD is the active matrix display, which contains a matrix of thin-film transistors for control. This technology is currently leading for flat screens. LCD displays are nowadays used on many electronic devices in consumer electronics, such as digital clocks, mobile phones, measuring devices, pocket calculators or video projectors.

The origin story: Liquid crystal technology was
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