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US 7,724,321 B2Granted
Liquid crystal display
AssigneeEpistar Corporation
InventorsMin-Hsun Hsieh, Chien-Yuan Wang
Life of this patent
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Abstract
A liquid crystal display having a backlight module, liquid crystal layer and a color filter layer is disclosed in the invention. An ultraviolet unit for emitting ultraviolet is disposed in the backlight module. The color filter layer is composed of a purity of pixels, and at least one of the purity of pixels is filled with a wavelength-converting material. The wavelength-converting material can convert ultraviolet into green light.
Claims18
A liquid crystal display, comprising:
- a backlight module comprising an ultraviolet unit, a red-light unit and a blue-light unit;
- a liquid crystal layer for controlling light flux emitted from the backlight module;
- and
- a color filter layer comprising a plurality of pixels and a wavelength-converting material formed on one of the pixels, wherein the wavelength-converting material emits green light after being irradiated by the ultraviolet unit.
1 more element
Dependencies are inferred from the claim text.