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US 9,177,513 B2Granted
Electroluminescent display where each pixel can emit light of any EIA color index
AssigneeVizio Inc.
InventorMatthew McRae
Life of this patent
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Abstract
A display system, having an emissive body, varying light emitted from the surface in a way that each area becomes a pixel. The emissive body can be a FIPEL type device. Light can be both color varied and also color temperature controlled. The light color is changed by changing a frequency used to drive the body. Multiplexers can be used to reduce the number of generators needed.
Claims20
A display system, comprising
- an emissive body, having an emissive surface, arranged into multiple separate areas, each area defining a pixel of a display being displayed,
- a pixel control circuit that receives first information indicative of a color of a pixel of the display, and second information indicative of a white balance, and combines said first and second information to create a signal indicative of a merged color;
- a plurality of signal generators, respectively connected to drive different areas on said emissive body, where a frequency of each of the signal generators is controlled by a level of the signal indicative of the merged color, to vary a color emitted by each separate area of the emissive body, being driven by the signal generator,
- anywhere between a level of R, G and B being controlled according to any color bound by a triangle in a chromaticity diagram that bounds all NTSC colors, and the level being controlled by the frequency of the signal generators;
- wherein each said area becomes a pixel of the display by displaying a color of the pixel.
2 more elements
A method of display, comprising
- controlling an emissive body, having an emissive surface, such that each of multiple separate areas are controlled to emit in separate colors, each area defining a pixel of a display being displayed, said controlling comprising receiving first information indicative of a color of a pixel of the display, receiving second information indicative of a white balance, and combining said first and second information to create a signal indicative of a merged color, and using signals indicative of the merged color to control respective frequencies of a plurality of signal generators, where a frequency of each of the signal generators is controlled by a level of the signal indicative of the merged color,
- connecting the frequency from the signal generator to different areas on said emissive body, said controlling varying the frequency output of the signal generators to vary a color emitted by each separate area of the emissive body being driven by the signal generator, anywhere within a triangle in a chromaticity diagram that bounds all NTSC colors;
- displaying such that each said area becomes a pixel of the display by displaying a color of the pixel.
Dependencies are inferred from the claim text.