Transflective liquid crystal display device with balanced chromaticity
AssigneeToppoly Optoelectronics Corp.
InventorsWei-Chih Chang, Li-Sen Chuang, Dai-Liang Ting
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Abstract
A four color transflective liquid crystal display device is disclosed. Each main pixel area includes three primary color sub-pixel areas and a white sub-pixel area. Each primary color sub-pixel area includes a first transmissive portion and a first reflective portion. The white sub-pixel area includes a second reflective portion and a second transmissive portion. The second reflection reflects a substantively white light to raise display brightness in the reflective mode. Thus, the chromaticity of the reflective mode approaches that of the transmissive mode.
Claims20
A transflective liquid crystal display device comprising a plurality of main pixel areas, each main pixel area comprising:
- at least one primary color sub-pixel area, wherein the at least one primary color sub-pixel area comprises a first transmissive portion and a first reflective portion;
- and
- a white sub-pixel area, wherein the white sub-pixel area comprises a second reflective portion.
A transflective liquid crystal display device comprising a plurality of main pixel areas, each main pixel area comprising:
- three primary sub-pixel electrodes and an additional sub-pixel electrode disposed on a substrate, wherein each primary sub-pixel electrode comprises a first transmissive portion and a first reflective portion and the additional sub-pixel electrode comprises a second reflective portion;
- and
- a color filter comprising three primary color regions and a white region, wherein the primary sub-pixel electrodes correspond to the primary color regions and the additional sub-pixel electrode corresponds to the white region.
A transflective liquid crystal display device comprising a plurality of main pixel areas, each main pixel area comprising:
- a first substrate and a second substrate disposed opposite each other with a liquid crystal layer interposed therebetween;
- three primary sub-pixel electrodes and an additional sub-pixel electrode formed on the first substrate, wherein each primary sub-pixel electrode comprises a first transmissive portion and a first reflective portion and the additional sub-pixel electrode comprises a second reflective portion;
- a color filter formed on an inner side of the second substrate, wherein the color filter comprises three primary color regions and a white region, the primary sub-pixel electrodes correspond to the primary color regions and the additional sub-pixel electrode corresponds to the white region;
- and
- a common electrode formed over the color filter.
Dependencies are inferred from the claim text.