White light-emitting device
AssigneeV Technology Co., Ltd.
InventorsKoichi Kajiyama, Michinobu Mizumura, Yuya Fujimori
Life of this patent
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Abstract
A white light-emitting device is capable of correcting deviations in chromaticity and includes a plurality of pixels, each of the plurality of pixels includes at least two sub-pixels, and each of the sub-pixels is a white light-emitting element. At least one sub-pixel out of the at least two sub-pixels includes a color filter. The optical characteristic of the color filter is set to correct the deviation of chromaticity of light emitted by the white light-emitting element. The white light-emitting device further controls an emission intensity of each of the white light-emitting elements.
Claims11
A display device that displays a grayscale image comprising:
- two white light-emitting devices used together, each white light-emitting device comprising:
- a plurality of pixels;
- and
- wherein each of the plurality of pixels includes at least two sub-pixels, each of the sub-pixels being a white light-emitting element,
- at least one sub-pixel out of the at least two sub-pixels includes a color filter that does not display a color image,
- an optical characteristic of the color filter is set to correct a deviation in chromaticity of light emitted by the white light-emitting element, wherein the deviation in chromaticity of the white light-emitting element is a deviation in chromaticity due to change over time of the white light-emitting element, and
- a light emission control unit that controls an emission intensity of each of the white light-emitting elements.
Dependencies are inferred from the claim text.