Liquid crystal display and organic EL display
First Claim
1. A liquid crystal display comprising:
- a liquid crystal display panel, the liquid crystal display panel including a TFT substrate having formed thereon pixel electrodes and TFTs, a color filter substrate having formed thereon color filters, liquid crystal interposed between the color filter substrate and the TFT substrate, a first polarizing plate attached to the color filter substrate, and a second polarizing plate attached to the TFT substrate,wherein the liquid crystal display panel has an outwardly convex screen with a curvature in one direction, and the first polarizing plate has an absorption axis in a direction in which the liquid crystal display panel has a curvature.
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Abstract
Disclosed is a liquid display device that is capable of suppressing a change in contrast of a liquid crystal display panel, in which a screen is a curved surface with a curvature in one direction. In a liquid crystal display panel having a cylindrical surface, an upper polarizing plate is attached to a color filter substrate. The upper polarizing plate receives tensile stress in a curved direction. Tensile stress adversely affects polarization characteristics of the upper polarizing plate. According to an embodiment of the invention, if the absorption axis A of the upper polarizing plate is adapted to match with the curved direction of the liquid crystal display panel, it is possible to prevent a change in polarization characteristics of the upper polarizing plate. As a result, it is possible to obtain an image with excellent contrast for a long term.
109 Citations
12 Claims
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1. A liquid crystal display comprising:
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a liquid crystal display panel, the liquid crystal display panel including a TFT substrate having formed thereon pixel electrodes and TFTs, a color filter substrate having formed thereon color filters, liquid crystal interposed between the color filter substrate and the TFT substrate, a first polarizing plate attached to the color filter substrate, and a second polarizing plate attached to the TFT substrate, wherein the liquid crystal display panel has an outwardly convex screen with a curvature in one direction, and the first polarizing plate has an absorption axis in a direction in which the liquid crystal display panel has a curvature. - View Dependent Claims (2)
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3. A liquid crystal display comprising:
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a liquid crystal display panel, the liquid crystal display panel including a TFT substrate having formed thereon pixel electrodes and TFTs, a color filter substrate having formed thereon color filters, liquid crystal interposed between the color filter substrate and the TFT substrate, a first polarizing plate attached to the color filter substrate, and a second polarizing plate attached to the TFT substrate, wherein the liquid crystal display panel has an outwardly convex screen with a curvature in one direction, and the first polarizing plate substantially has an absorption axis in a direction in which the liquid crystal display panel has a curvature, and an angle between an axis in the direction, in which the liquid crystal display panel has a curvature, and the absorption axis of the first polarizing plate is 10±
5 degrees. - View Dependent Claims (4)
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5. A liquid crystal display comprising:
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a liquid crystal display panel, the liquid crystal display panel including a TFT substrate having formed thereon pixel electrodes and TFTs, a color filter substrate having formed thereon color filters, liquid crystal interposed between the color filter substrate and the TFT substrate, a first polarizing plate attached to the color filter substrate, and a second polarizing plate attached to the TFT substrate, wherein the liquid crystal display panel has an outwardly concave screen with a curvature in one direction, and the first polarizing plate has an absorption axis in a direction perpendicular to a direction in which the liquid crystal display panel has a curvature. - View Dependent Claims (6)
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7. A liquid crystal display comprising:
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a liquid crystal display panel, the liquid crystal display panel including a TFT substrate having formed thereon pixel electrodes and TFTs, a color filter substrate having formed thereon color filters, liquid crystal interposed between the color filter substrate and the TFT substrate, a first polarizing plate attached to the color filter substrate, and a second polarizing plate attached to the TFT substrate, wherein the liquid crystal display panel has an outwardly concave screen with a curvature in one direction, and an angle between the absorption axis of the first polarizing plate and a direction perpendicular to that in which the liquid crystal display panel has a curvature is 10±
5 degrees. - View Dependent Claims (8)
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9. An organic EL display comprising:
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an organic EL display panel, the organic EL display panel including an OLED substrate having formed thereon an organic EL layer, and a seal substrate arranged to be opposed to the OLED substrate, wherein a screen of the organic EL display panel is formed on the seal substrate, and the organic EL display panel is curved to have an outwardly convex shape with a curvature in one direction, and a circular polarizing plate having a retardation film and a polarizing plate is provided on the seal substrate, and an extension axis of the retardation film or the polarizing plate is adapted to match with a direction in which the organic EL display panel has a curvature.
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10. An organic EL display comprising:
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an organic EL display panel, the organic EL display panel including an OLED substrate having formed thereon an organic EL layer, and a seal substrate arranged to be opposed to the OLED substrate, wherein a screen of the organic EL display panel is formed on the seal substrate, and the organic EL display panel is curved have an outwardly concave shape with a curvature in one direction, and a circular polarizing plate having a retardation film and a polarizing plate is provided on the seal substrate, and an extension axis of the retardation film or the polarizing plate is adapted to be perpendicular to a direction in which the organic EL display panel has a curvature.
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11. An organic EL display comprising:
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an organic EL display panel, the organic EL display panel including an OLED substrate having formed thereon an organic EL layer, and a seal substrate arranged to be opposed to the OLED substrate, wherein a screen of the organic EL display panel is formed on the OLED substrate, and the organic EL display panel is curved to have an outwardly convex shape with a curvature in one direction, and a circular polarizing plate having a retardation film and a polarizing plate is provided on the OLED substrate, and an extension axis of the retardation film or the polarizing plate is adapted to match with a direction in which the organic EL display panel has a curvature.
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12. An organic EL display comprising:
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an organic EL display panel, the organic EL display panel including an OLED substrate having formed thereon an organic EL layer, and a seal substrate arranged to be opposed to the OLED substrate, wherein a screen of the organic EL display panel is formed on the OLED substrate, and the organic EL display panel is curved have an outwardly concave shape with a curvature in one direction, and a circular polarizing plate having a retardation film and a polarizing plate is provided on the OLED substrate, and an extension axis of the retardation film or the polarizing plate is adapted to be perpendicular to a direction in which the organic EL display panel has a curvature.
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Specification