Transflective Liquid Crystal Display Device
First Claim
1. A transflective liquid crystal display device comprising a liquid crystal display panel having a pair of substrates;
- and liquid crystal sandwiched between the pair of substrates,the liquid crystal display panel including a plurality of sub pixels each having a transmissive part and a reflective part,each sub pixel out of the plurality of sub pixels including a pixel electrode which is formed on one substrate out of the pair of substrates and a counter electrode which is formed on the one substrate, andan electric field is generated by the pixel electrode and the counter electrode thus driving the liquid crystal, whereina portion of the counter electrode of the each sub pixel at the reflective part constitutes a reflective electrode,the reflective electrode includes an uneven portion and a flat portion, andthe flat portion of the reflective electrode is arranged on a boundary portion between the transmissive part and the reflective part of the each sub pixel.
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Accused Products
Abstract
The present invention enhances display efficiency and a contrast of a reflective part in an IPS-type transflective liquid crystal display device. In a transflective liquid crystal display device in which the liquid crystal display device includes a liquid crystal display panel having a pair of substrates and liquid crystal sandwiched between the pair of substrates, the liquid crystal display panel includes a plurality of sub pixels each having a transmissive part and a reflective part, each sub pixel out of the plurality of sub pixels includes a pixel electrode which is formed on one substrate out of the pair of substrates and a counter electrode which is formed on the one substrate, and an electric field is generated by the pixel electrode and the counter electrode thus driving the liquid crystal, a portion of the counter electrode of the each sub pixel at the reflective part constitutes a reflective electrode, the reflective electrode includes an uneven portion and a flat portion, and the flat portion of the reflective electrode is arranged on a boundary portion between the transmissive part and the reflective part of the each sub pixel.
15 Citations
21 Claims
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1. A transflective liquid crystal display device comprising a liquid crystal display panel having a pair of substrates;
- and liquid crystal sandwiched between the pair of substrates,
the liquid crystal display panel including a plurality of sub pixels each having a transmissive part and a reflective part, each sub pixel out of the plurality of sub pixels including a pixel electrode which is formed on one substrate out of the pair of substrates and a counter electrode which is formed on the one substrate, and an electric field is generated by the pixel electrode and the counter electrode thus driving the liquid crystal, wherein a portion of the counter electrode of the each sub pixel at the reflective part constitutes a reflective electrode, the reflective electrode includes an uneven portion and a flat portion, and the flat portion of the reflective electrode is arranged on a boundary portion between the transmissive part and the reflective part of the each sub pixel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
- and liquid crystal sandwiched between the pair of substrates,
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19. A transflective liquid crystal display device comprising:
- a liquid crystal display panel having a pair of substrates; and
liquid crystal sandwiched between the pair of substrates,the liquid crystal display panel including a plurality of sub pixels each having a transmissive part and a reflective part, each subpixel out of the plurality of subpixels including a pixel electrode which is formed on one substrate out of the pair of substrates and a counter electrode which is formed on the one substrate, and an electric field is generated by the pixel electrode and the counter electrode thus driving the liquid crystal, wherein another substrate out of the pair of substrates includes a step forming layer in a region which faces the reflective part in an opposed manner such that a layer thickness of the liquid crystal in the reflective part is set smaller than a layer thickness of the liquid crystal in the transmissive part, the pixel electrode includes comb-teeth electrodes, and a number of the comb-teeth electrodes of the pixel electrode is larger in the reflective part than in the transmissive part.
- a liquid crystal display panel having a pair of substrates; and
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20. A transflective liquid crystal display device comprising:
- a liquid crystal display panel having a pair of substrates; and
liquid crystal sandwiched between the pair of substrates,the liquid crystal display panel including a plurality of sub pixels each having a transmissive part and a reflective part, each sub pixel out of the plurality of sub pixels including a pixel electrode which is formed on one substrate out of the pair of substrates and a counter electrode which is formed on the one substrate, and an electric field is generated by the pixel electrode and the counter electrode thus driving the liquid crystal, wherein another substrate out of the pair of substrates includes a step forming layer in a region which faces the reflective part in an opposed manner such that a layer thickness of the liquid crystal in the reflective part is set smaller than a layer thickness of the liquid crystal in the transmissive part, the pixel electrode includes a comb-teeth electrode, and in the direction orthogonal to the extending direction of the comb-teeth electrode of the pixel electrode, a distance from a center line between the sub pixels which are arranged close to each other to an end portion of the comb-teeth electrode of the pixel electrode is set smaller in the reflective part than in the transmissive part. - View Dependent Claims (21)
- a liquid crystal display panel having a pair of substrates; and
Specification