Liquid crystal display device
First Claim
Patent Images
1. A liquid crystal display device comprising:
- a first substrate on a main surface thereof, a black mask and color filters, each arranged in an aperture of the black mask, being formed;
a liquid crystal layer;
a second substrate disposed opposite to the first substrate across the liquid crystal layer and stuck to the first substrate by a sealing material applied to peripheries of a main surface of the first substrate facing the liquid crystal layer and of a main surface of the second substrate facing the liquid crystal layer;
a stacked structure formed on the main surface of the second substrate by stacking in order first signal lines, an insulating film covering the first signal lines, and second signal lines each overlappingly intersecting the first signal lines over the insulating film therebetween;
a plurality of pixel regions each formed as being surrounded by respective neighboring first signal lines and second signal lines, and having a pixel electrode; and
first spacers and second spacers both formed on the main surfaces of the first substrate, and arranged between pixel electrodes of adjacent pixel regions and in the liquid crystal layer,wherein each of the second spacers is ordinarily spaced from the stacked structure formed on the second substrate to accommodate the liquid crystal layer therebetween, and each of the first spacers ordinarily contacts directly with the stacked structure formed on the second substrate,wherein portions of the stacked structure contacting with the first spacers are thicker than other portions of the stacked structure corresponding to the second spacers with the liquid crystal layer interposed therebetween, andwherein a distance between the stacked structure and each of the first spacers is longer than a distance between the stacked structure and each of the second spacers.
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Abstract
In order to prevent irreversible deformation of column-shaped spacers which retain the gap between a pair of substrates between which the liquid crystal layer of a liquid crystal display device is interposed, spacers which assist in preventing such irreversible deformation are newly provided. According to the invention, two or more kinds of spacers which differ in height from a reference surface are disposed on one of the pair of substrates. In addition, a step pattern with which the spacers are to come into contact is formed in advance on the other of the pair of substrates so that the heights of the spacers can be made different.
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Citations
8 Claims
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1. A liquid crystal display device comprising:
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a first substrate on a main surface thereof, a black mask and color filters, each arranged in an aperture of the black mask, being formed; a liquid crystal layer; a second substrate disposed opposite to the first substrate across the liquid crystal layer and stuck to the first substrate by a sealing material applied to peripheries of a main surface of the first substrate facing the liquid crystal layer and of a main surface of the second substrate facing the liquid crystal layer; a stacked structure formed on the main surface of the second substrate by stacking in order first signal lines, an insulating film covering the first signal lines, and second signal lines each overlappingly intersecting the first signal lines over the insulating film therebetween; a plurality of pixel regions each formed as being surrounded by respective neighboring first signal lines and second signal lines, and having a pixel electrode; and first spacers and second spacers both formed on the main surfaces of the first substrate, and arranged between pixel electrodes of adjacent pixel regions and in the liquid crystal layer, wherein each of the second spacers is ordinarily spaced from the stacked structure formed on the second substrate to accommodate the liquid crystal layer therebetween, and each of the first spacers ordinarily contacts directly with the stacked structure formed on the second substrate, wherein portions of the stacked structure contacting with the first spacers are thicker than other portions of the stacked structure corresponding to the second spacers with the liquid crystal layer interposed therebetween, and wherein a distance between the stacked structure and each of the first spacers is longer than a distance between the stacked structure and each of the second spacers. - View Dependent Claims (2, 3, 4, 5)
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6. A liquid crystal display device comprising:
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a first substrate including a black mask and color filters; a liquid crystal layer; a second substrate disposed opposite to the first substrate across the liquid crystal layer; first signal lines formed on the second substrate; second signal lines intersecting the first signal lines with an insulating film provided therebetween; a plurality of pixel regions each formed as being surrounded by respective neighboring first signal lines and second signal lines, and having a pixel electrode; a base pattern selectively formed between pixel electrodes of adjacent pixel regions; a plurality of first spacers formed above a main surface of the first substrate and arranged above a first part where is between selected ones of said pixel electrodes of adjacent pixel regions and overlaps with the base pattern in a plan view; and a plurality of second spacers formed on the main surface of the first substrate and arranged above a second part where is between other ones of said pixel electrodes of adjacent pixel regions and does not overlap with the base pattern in the plan view, wherein each of the second spacers is ordinarily spaced from a stacked structure formed on the second substrate to accommodate the liquid crystal layer therebetween, each of the first spacers is formed above the base pattern and ordinarily contacts directly the stacked structure formed on the second substrate, the first part includes the base pattern, the second part excludes the base pattern, and the first part is disposed opposite to the second part across a respective pixel region in the plan view. - View Dependent Claims (7, 8)
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Specification