Display device
First Claim
Patent Images
1. A subtractive display device comprising picture elements having sub-pixels, each sub-pixel having, viewed during operation in a direction normal to substrates, at least two independently switchable electro-optical components, the device further comprising:
- a color filter in which each sub-pixel color filter part absorbs or reflects one of a part of the optical spectral range, the parts of the optical spectral range being substantially non-overlapping, the device comprising means for controlling absorption or reflection of remaining parts of the spectral range in each sub-pixel by the at least two switchable electro-optical components, the non-overlapping ranges together covering the optical spectral range, wherein the electro-optical components further comprise at least two switchable electro-optical layers, comprising at least one first fluid and a second fluid respectively, and wherein the second fluid and the first fluid are immiscible.
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Abstract
A subtractive display device comprising picture elements having sub-pixels, each sub-pixel comprising a stack of switchable layers (5,25) or components and a color filter part (21).
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Citations
13 Claims
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1. A subtractive display device comprising picture elements having sub-pixels, each sub-pixel having, viewed during operation in a direction normal to substrates, at least two independently switchable electro-optical components, the device further comprising:
a color filter in which each sub-pixel color filter part absorbs or reflects one of a part of the optical spectral range, the parts of the optical spectral range being substantially non-overlapping, the device comprising means for controlling absorption or reflection of remaining parts of the spectral range in each sub-pixel by the at least two switchable electro-optical components, the non-overlapping ranges together covering the optical spectral range, wherein the electro-optical components further comprise at least two switchable electro-optical layers, comprising at least one first fluid and a second fluid respectively, and wherein the second fluid and the first fluid are immiscible. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A subtractive display device comprising picture elements having sub-pixels, each sub-pixel having, viewed during operation in a direction normal to substrates, n independently switchable electro-optical components (n>
- 2), the device further comprising a color filter in which each sub-pixel color filter part absorbs or reflects one of a part of the optical spectral range, the parts of the optical spectral range being substantially non-overlapping, the device comprising means for controlling absorption or reflection of remaining parts of the spectral range in each sub-pixel by (n-1) switchable electro-optical components, the non overlapping ranges together covering the optical spectral range wherein the electro-optical components further comprise least two switchable electro-optical layers, comprising at least one first fluid and a second fluid respectively, and wherein the second fluid and the first fluid are immiscible.
Specification