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Lightguide Plate Simplifies LCD Illumination

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Richard Gaughan

Liquid crystal displays (LCDs) are used for applications in which low weight, minimal power consumption and uniform intensity are important, such as in cell phones, personal digital assistants and laptop computers. The voltage on each pixel of an LCD controls how much light is let through the red, green and blue elements. Traditional LCD backlighting systems feature a light source, a lightguide plate, a backreflector, a diffuser and a layer of prisms. Now scientists at Tsinghua University in Beijing have developed a lightguide plate that incorporates the functions of these components in a...Read full article

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    Published: February 2005
    Glossary
    diffuser
    An optical diffuser is an optical component or material designed to scatter or diffuse light that passes through it. It is used to create a more even or uniform illumination, reduce glare, or soften the appearance of harsh, direct light. Optical diffusers work by disrupting the direction and intensity of incident light, causing it to spread in various directions. There are different types of optical diffusers, and they can be made from various materials, including glass, plastics, and...
    backreflectorConsumerdiffuserLCD backlighting systemsLCD controlsLight Sourceslightguide plateliquid crystal displaysPrismsResearch & TechnologyLEDs

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