For instance: preset words, digits, and seven-segment displays, as in a digital clock, are all good examples of devices with these displays. LCDs are available to display arbitrary images (as in a general-purpose computer display) or fixed images with low information content, which can be displayed or hidden. Liquid crystals do not emit light directly but instead use a backlight or reflector to produce images in color or monochrome. (In a backlit LCD, this layer is replaced or complemented with a light source.)Ī liquid-crystal display ( LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers.
Vertical ridges etched on the surface are smooth. The shapes of these electrodes will determine the shapes that will appear when the LCD is switched ON.
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