Common electrode substrate and liquid crystal display device having the same
First Claim
1. A common electrode substrate comprising:
- a transparent insulating substrate to be arranged opposite to an array substrate having pixel electrodes formed in respective pixel regions that are defined by a plurality of gate bus lines and drain bus lines, and to hold a liquid crystal having negative dielectric anisotropy;
a common electrode formed on the transparent insulating substrate;
alignment regulating structures having linear protrusions formed on the common electrode; and
a light shield film formed on the transparent insulating substrate and having overlap regions that overlap the pixel electrodes when viewed in a direction perpendicular to a surface of the transparent insulating substrate so as to shield, from light, alignment defective regions of the liquid crystal formed in regions of end portions of the pixel electrodes.
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Accused Products
Abstract
A common electrode substrate has a transparent insulating substrate to be arranged opposite to an array substrate having pixel electrodes formed in respective pixel regions that are defined by a plurality of gate bus lines and drain bus lines. The substrate holds a liquid crystal having negative dielectric anisotropy. A common electrode is formed on the transparent insulating substrate; alignment regulating structures having linear protrusions are formed on the common electrode; and a light shield film is formed on the transparent insulating substrate with overlap regions that overlap the pixel electrodes when viewed in the direction perpendicular to a surface of the transparent insulating substrate, so as to shield, from light, alignment defective regions of the liquid crystal formed in regions of end portions of the pixel electrodes.
181 Citations
20 Claims
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1. A common electrode substrate comprising:
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a transparent insulating substrate to be arranged opposite to an array substrate having pixel electrodes formed in respective pixel regions that are defined by a plurality of gate bus lines and drain bus lines, and to hold a liquid crystal having negative dielectric anisotropy;
a common electrode formed on the transparent insulating substrate;
alignment regulating structures having linear protrusions formed on the common electrode; and
a light shield film formed on the transparent insulating substrate and having overlap regions that overlap the pixel electrodes when viewed in a direction perpendicular to a surface of the transparent insulating substrate so as to shield, from light, alignment defective regions of the liquid crystal formed in regions of end portions of the pixel electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 12, 19, 20)
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9. A common electrode substrate comprising:
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a transparent insulating substrate to be arranged opposite to an array substrate having pixel electrodes formed in respective pixel regions that are defined by a plurality of gate bus lines and drain bus lines, and to hold a liquid crystal having negative dielectric anisotropy;
a common electrode formed on the transparent insulating substrate;
alignment regulating structures having linear protrusions formed on the common electrode; and
a light shield film formed on the transparent insulating substrate outside each of the pixel electrodes in normal alignment regions other than alignment defective regions of the liquid crystal when viewed in a direction perpendicular to a surface of the transparent insulating substrate. - View Dependent Claims (10, 11)
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13. A common electrode substrate comprising:
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a transparent insulating substrate to be arranged opposite to an array substrate having pixel electrodes formed in respective pixel regions that are defined by a plurality of gate bus lines and drain bus lines, and to hold a liquid crystal having negative dielectric anisotropy;
a common electrode formed on the transparent insulating substrate and having steps for alignment-restricting the liquid crystal in regions opposed to regions between each of the pixel electrodes and the drain bus lines; and
alignment regulating structures having linear protrusions formed on the common electrode. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification