Vertical alignment type LCD device with overlapping openings at opposed first and second electrodes and depression in interlayer insulating film corresponding to first electrode opening
First Claim
1. A liquid crystal display device comprising a first substrate, a second substrate placed to face the first substrate, and a liquid crystal layer interposed between the first substrate and the second substrate,wherein the liquid crystal display device has a plurality of pixels each including a first electrode formed on the first substrate, an interlayer insulating film formed between the first substrate and the first electrode, a second electrode formed on the second substrate, and the liquid crystal layer interposed between the first electrode and the second electrode, wherein the liquid crystal layer is a vertically aligned type liquid crystal layer,the interlayer insulating film has at least one depression formed at a predetermined position, and the liquid crystal layer has at least one liquid crystal domain having axisymmetric alignment and including liquid crystal molecules tilted in directions defined with the at least one depression formed when at least a predetermined voltage is applied, and a center axis of the axisymmetric alignment is formed in or near the at least one depression,wherein the first electrode has at least one opening defined therein, and the at least one opening comprises an opening formed at a position corresponding to the at least one depression,wherein the second electrode has at least one other opening formed to substantially overlap with the at least one opening in the first electrode, andwherein the center axis of the axisymmetric alignment is formed in or near the at least one other opening.
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Abstract
The liquid crystal display device includes a first substrate 1110a, a second substrate 1110b placed to face the first substrate, and a liquid crystal layer 1120 interposed between the first substrate and the second substrate. The liquid crystal display device has a plurality of pixels each including a first electrode 1111 formed on the first substrate, a second electrode 1131 formed on the second substrate, and the liquid crystal layer interposed between the first electrode and the second electrode. The second electrode 1131 has at least one opening 1114 formed at a predetermined position in the pixel, the first substrate has a shading region in gaps between the plurality of pixels, and a wall structure 1115 is placed regularly on the surface of the first substrate facing the liquid crystal layer in the shading region. The liquid crystal layer has at least one liquid crystal domain having axisymmetric alignment formed when at least a predetermined voltage is applied, and the center axis of the axisymmetric alignment of the at least one liquid crystal domain is formed in or near the at least one opening.
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Citations
12 Claims
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1. A liquid crystal display device comprising a first substrate, a second substrate placed to face the first substrate, and a liquid crystal layer interposed between the first substrate and the second substrate,
wherein the liquid crystal display device has a plurality of pixels each including a first electrode formed on the first substrate, an interlayer insulating film formed between the first substrate and the first electrode, a second electrode formed on the second substrate, and the liquid crystal layer interposed between the first electrode and the second electrode, wherein the liquid crystal layer is a vertically aligned type liquid crystal layer, the interlayer insulating film has at least one depression formed at a predetermined position, and the liquid crystal layer has at least one liquid crystal domain having axisymmetric alignment and including liquid crystal molecules tilted in directions defined with the at least one depression formed when at least a predetermined voltage is applied, and a center axis of the axisymmetric alignment is formed in or near the at least one depression, wherein the first electrode has at least one opening defined therein, and the at least one opening comprises an opening formed at a position corresponding to the at least one depression, wherein the second electrode has at least one other opening formed to substantially overlap with the at least one opening in the first electrode, and wherein the center axis of the axisymmetric alignment is formed in or near the at least one other opening.
Specification