Liquid crystal display device using holographic diffuser
First Claim
Patent Images
1. A liquid crystal display device, comprising:
- a liquid crystal cell;
a first polarizer;
a second polarizer;
a backlight under the first polarizer; and
a holographic diffuser over the liquid crystal cell, the holographic diffuser including a spacer and a diffusing layer over the spacer, wherein the spacer includes an open portion and a topography of a lower surface of the diffusing layer includes a holographic pattern.
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Abstract
A liquid crystal display device includes a liquid crystal cell, a first polarizer under the liquid crystal cell, a backlight under the first polarizer, and a holographic diffuser over the liquid crystal cell. The holographic diffuser includes a spacer and a diffusing layer over the spacer. The spacer includes an open portion and a lower surface of the diffusing layer includes a holographic pattern.
60 Citations
26 Claims
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1. A liquid crystal display device, comprising:
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a liquid crystal cell; a first polarizer; a second polarizer; a backlight under the first polarizer; and a holographic diffuser over the liquid crystal cell, the holographic diffuser including a spacer and a diffusing layer over the spacer, wherein the spacer includes an open portion and a topography of a lower surface of the diffusing layer includes a holographic pattern. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A liquid crystal display device, comprising:
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a liquid crystal cell having first and second surfaces opposite to each other; a spacer contacting a periphery of the first surface of the liquid crystal cell; a diffusing layer over the spacer, wherein the spacer completely separates the diffusing layer from the first surface of the liquid crystal cell; and a backlight unit near the second surface of the liquid crystal cell, wherein the liquid crystal cell is between the backlight unit and the diffusing layer.
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25. A liquid crystal display device, comprising:
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a backlight unit; a liquid crystal cell over the backlight unit; and a diffusing layer over the liquid crystal cell, wherein the diffusing layer and the liquid crystal cell are separated from each other by air and a spacer at a periphery of the diffusing layer and wherein the liquid crystal cell is between the backlight unit and the diffusing layer.
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26. A display device, comprising:
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a display panel with first surface facing a viewer; a spacer contacting a periphery of the first surface of the display panel; and a diffusing layer having a holographic pattern over the spacer, wherein an air gap is formed between the diffusing layer and the first surface of the display panel due to a height of the spacer and wherein the spacer completely separates the diffusing layer from the first surface of the display panel.
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Specification