Light emitting panel assemblies
First Claim
1. A backlight assembly comprising a light emitting member, a substrate overlying said light emitting member, said substrate having a pattern of deformities on at least one side of said substrate for controlling an output ray angle distribution of light emitted by said light emitting member to suit a particular application, said deformities varying in at least one of the following characteristics:
- size, shape, placement, index of refraction, density, angle, depth, height, and type.
6 Assignments
0 Petitions
Accused Products
Abstract
Light emitting panel assemblies include a sheet, film or plate overlying a light emitting member. The sheet, film or plate has a pattern of deformities on one or both sides that may vary or be random in size, shape or geometry, placement, index of refraction, density, angle, depth, height and type for controlling the light output distribution to suit a particular application. Also the sheet, film or plate may have a coating or surface treatment for causing the light to pass through a liquid crystal display with low loss.
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Citations
83 Claims
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1. A backlight assembly comprising a light emitting member, a substrate overlying said light emitting member, said substrate having a pattern of deformities on at least one side of said substrate for controlling an output ray angle distribution of light emitted by said light emitting member to suit a particular application, said deformities varying in at least one of the following characteristics:
- size, shape, placement, index of refraction, density, angle, depth, height, and type.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 24, 25, 30, 31, 32, 33, 34, 35, 36, 37, 38, 40, 41, 42, 43, 44, 45, 46, 47, 48, 50, 51, 52, 53, 54, 55, 56, 57, 58, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69)
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16. A backlight assembly comprising a light emitting member, a substrate overlying said light emitting member, said substrate having a pattern of deformities on at least one side of said substrate for controlling an output ray angle distribution of light emitted by said light emitting member to suit a particular application, said deformities being random in at least one of the following characteristics:
- size, shape, placement, index of refraction, density, angle, depth, height, type.
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26. A backlight assembly comprising a light emitting member, a substrate overlying said light emitting member, said substrate having a multitude of deformities on at least one side of said substrate for controlling an output ray angle distribution of light emitted by said light emitting member to suit a particular application, said deformities comprising at least one of depressions and projections on said one side, said projections having at least one of a shape and pattern with no specific angle.
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27. A backlight assembly comprising a light emitting member, a substrate overlying said light emitting member, said substrate having a multitude of deformities on at least one side of said substrate for controlling an output ray angle distribution of light emitted by said light emitting member to suit a particular application, said deformities comprising at least one of shaped depressions and projections on said one side, at least some of said deformities including prismatic surfaces having angles that vary among said deformities.
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28. A backlight assembly comprising a light emitting member, a substrate overlying said light emitting member, said substrate having a multitude of deformities on at least one side of said substrate for controlling an output ray angle distribution of light emitted by said light emitting member to suit a particular application, said deformities comprising at least one of shaped depressions and projections on said one side, at least some of said deformities having angles that vary among said deformities.
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29. A liquid crystal backlight assembly comprising a light emitting member including at least one sheet or film having deformities or disruptions on at least one side, at least some of said deformities or disruptions varying in shape or geometry for causing light rays to be emitted from said backlight assembly at predetermined ray angles such that the light rays will pass through a liquid crystal display with low loss.
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39. A liquid crystal backlight assembly comprising a light emitting member including at least one sheet or film having deformities or disruptions on at least one side, at least some of said deformities or disruptions having random shapes or geometries for causing light rays to be emitted from said backlight assembly at predetermined ray angles such that the light rays will pass through a liquid crystal display with low loss.
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49. A liquid crystal backlight assembly comprising a light emitting member including at least one sheet or film having deformities or disruptions on at least one side, at least some of said deformities or disruptions having random or varying changes in shape or geometry for causing light rays to be emitted from said backlight assembly at predetermined ray angles such that the light rays will pass through a liquid crystal display with low loss.
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59. A liquid crystal backlight assembly comprising a light emitting member including at least one sheet or film having random or varying changes in at least one of a coating and surface treatment on at least one side for causing light rays to be emitted from said backlight assembly and pass through a liquid crystal display with low loss.
- 70. A liquid crystal backlight assembly comprising a light emitting member including at least one sheet or film having changes in the shape or geometry of at least one surface, and at least one of a coating and surface treatment on said one surface for causing light rays to be emitted from said backlight assembly and pass through a liquid crystal display with low loss.
Specification