Super bright low reflectance liquid crystal display
First Claim
1. A liquid crystal display comprising:
- (a) a first transparent plate;
(b) a second transparent plate;
(c) a liquid crystal display panel positioned between said first and second transparent plates, said liquid crystal display panel comprising a first transparent substrate, a second transparent substrate, liquid crystal material positioned between said first and second transparent substrates, a first transparent electrode positioned between said liquid crystal material and said first transparent substrate, and a second transparent electrode positioned between said liquid crystal material and said second transparent substrate;
(d) a rear polarizer positioned between said liquid crystal display panel and said second transparent plate; and
(e) a front polarizer positioned in front of said first transparent plate, said front polarizer being crossed relative to said rear polarizer.
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Accused Products
Abstract
A liquid crystal display (LCD) exhibiting enhanced optical viewing performance. In a preferred embodiment, the LCD comprises a liquid crystal display panel, the liquid crystal display panel comprising a pair of transparent substrates, liquid crystal material sandwiched between the transparent substrates and transparent electrodes positioned between the liquid crystal material and the transparent substrates. The LCD also comprises a rear polarizer assembly comprising a compensation film, a polarizer mounted on the rear surface of the compensation film, and a first index-matched, pressure sensitive adhesive (PSA) mounted on the front surface of the compensation film, the PSA being adhered to the rear surface of the LCD panel. The LCD also comprises a front polarizer assembly, the front polarizer assembly comprising a front polarizer, a compensation film mounted on the rear surface of the front polarizer and an index-matched PSA mounted on the front surface of the front polarizer. The front polarizer is crossed relative to the rear polarizer. The front polarizer assembly may be adhered to the front of the LCD panel with a second index-matched, optical bonding material or may be spaced therefrom by an air gap. A transparent cover is mounted on the second index-matched PSA. The transparent cover is preferably a plastic plate. The plastic plate may be textured to reduce glare or may have an anti-reflection coating or an anti-reflection film applied to the front surface thereof. Instead of a plastic plate, the transparent cover may be a glass plate or a touch panel.
172 Citations
46 Claims
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1. A liquid crystal display comprising:
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(a) a first transparent plate;
(b) a second transparent plate;
(c) a liquid crystal display panel positioned between said first and second transparent plates, said liquid crystal display panel comprising a first transparent substrate, a second transparent substrate, liquid crystal material positioned between said first and second transparent substrates, a first transparent electrode positioned between said liquid crystal material and said first transparent substrate, and a second transparent electrode positioned between said liquid crystal material and said second transparent substrate;
(d) a rear polarizer positioned between said liquid crystal display panel and said second transparent plate; and
(e) a front polarizer positioned in front of said first transparent plate, said front polarizer being crossed relative to said rear polarizer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24, 26, 27, 28, 29, 30)
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17. A liquid crystal display comprising:
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(a) a first transparent plate;
(b) a second transparent plate;
(c) a liquid crystal display panel positioned between said first and second transparent plates, said liquid crystal display panel comprising a first transparent substrate, a second transparent substrate, liquid crystal material positioned between said first and second transparent substrates, a first transparent electrode positioned between said liquid crystal material and said first transparent substrate, and a second transparent electrode positioned between said liquid crystal material and said second transparent substrate;
(d) a rear polarizer positioned between said liquid crystal display panel and said second transparent plate;
(e) a front polarizer positioned in front of said first transparent plate, said front polarizer being crossed relative to said rear polarizer;
(f) an electromagnetic interference shield positioned between said first transparent plate and said liquid crystal display panel; and
(g) a third transparent plate positioned in front of said front polarizer.
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25. A liquid crystal display comprising:
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(a) a liquid crystal display panel, said liquid crystal display panel comprising a first transparent substrate, a second transparent substrate, liquid crystal material positioned between said first and second transparent substrates, a first transparent electrode positioned between said liquid crystal material and said first transparent substrate, and a second transparent electrode positioned between said liquid crystal material and said second transparent substrate;
(b) a rear polarizer positioned behind said liquid crystal display panel, said rear polarizer being directly adhered to said liquid crystal display panel with a first index-matched, pressure sensitive adhesive;
(c) a front polarizer positioned in front of said liquid crystal display panel, said front polarizer being crossed relative to said rear polarizer and being directly adhered to said liquid crystal display panel with an index-matched optical bonding material; and
(d) a transparent cover, said transparent cover being positioned in front of said front polarizer and being directly adhered thereto with a second index-matched, pressure-sensitive adhesive.
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31. A liquid crystal display comprising:
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(a) a liquid crystal display panel, said liquid crystal display panel comprising a first transparent substrate, a second transparent substrate, liquid crystal material positioned between said first and second transparent substrates, a first transparent electrode positioned between said liquid crystal material and said first transparent substrate, and a second transparent electrode positioned between said liquid crystal material and said second transparent substrate;
(b) a rear polarizer assembly positioned behind said liquid crystal display panel and adhered directly thereto, said rear polarizer assembly comprising a first compensation film having a front side and a rear side, a first polarizer mounted on said rear side of said first compensation film, and a first index-matched, pressure sensitive adhesive mounted on said rear side of said first compensation film, said first index-matched, pressure sensitive adhesive placed in contact with said liquid crystal display panel;
(c) a front polarizer assembly positioned in front of said liquid crystal display panel, said front polarizer assembly being directly adhered to said liquid crystal display panel with an index-matched optical bonding material and comprising a second polarizer, said second polarizer having a front side and a rear side and being crossed relative to said first polarizer, a compensation film mounted on said rear side of said second polarizer, and a second index-matched pressure sensitive adhesive mounted on said front side of said second polarizer; and
(d) a transparent cover, said transparent cover being positioned in front of said front polarizer assembly and in direct contact with said second index-matched pressure sensitive adhesive. - View Dependent Claims (32, 33, 34, 35, 36, 37, 39, 40, 41, 42, 43, 44, 46)
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38. A liquid crystal display comprising:
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(a) a liquid crystal display panel, said liquid crystal display panel comprising a first transparent substrate, a second transparent substrate, liquid crystal material positioned between said first and second transparent substrates, a first transparent electrode positioned between said liquid crystal material and said first transparent substrate, and a second transparent electrode positioned between said liquid crystal material and said second transparent substrate;
(b) a rear polarizer assembly positioned behind said liquid crystal display panel, said rear polarizer assembly comprising a rear polarizer and a first index-matched pressure sensitive adhesive, said rear polarizer having a front side and a rear side, said first index-matched pressure sensitive adhesive being positioned on said front side of said rear polarizer;
(c) a front polarizer assembly positioned in front of said liquid crystal display panel and separated from said liquid crystal display by an air gap, said front polarizer assembly comprising a front polarizer and a second index-matched pressure sensitive adhesive, said front polarizer being crossed relative to said rear polarizer and having a front side and a rear side, said second index-matched pressure sensitive adhesive being positioned on said front side of said front polarizer; and
(d) a transparent cover, said transparent cover being positioned in front of said front polarizer assembly and in contact with said second index-matched pressure sensitive adhesive.
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45. A polarizer assembly comprising:
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(a) a polarizer, said polarizer having a front side and a rear side;
(b) an adhesive, said adhesive being mounted on said front side of said polarizer; and
(c) a wide viewing angle film, said wide viewing angle film being mounted on said rear side of said polarizer.
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Specification