OPTICALLY TRANSMISSIVE COMPOSITE FILM FRAME
First Claim
1. A backlight assembly, comprising:
- a backlight having a first surface;
a frame surrounding at least a portion of the backlight; and
a transmissive optical film adjacent the first surface of the backlight and affixed to the frame, so as to provide an increased bending resistance to the frame.
1 Assignment
0 Petitions
Accused Products
Abstract
Optical display backlight assemblies having a transmissive optical film affixed to a frame which at least partially surrounds a backlight, are disclosed. The transmissive optical film can provide an increased bending resistance to the frame. The increase in bending resistance of the frame also increases the bending resistance of a display which incorporates the backlight assemblies. The optical film can be in tension after being affixed to the frame, and the tension in the film also can result in a flatter film surface with less sag. The film can be placed in tension prior to being affixed to the frame, the frame can be elastically distorted prior to affixing the film to impart tension to the film, or the film can develop tension by shrinkage after being affixed to the frame.
92 Citations
44 Claims
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1. A backlight assembly, comprising:
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a backlight having a first surface; a frame surrounding at least a portion of the backlight; and a transmissive optical film adjacent the first surface of the backlight and affixed to the frame, so as to provide an increased bending resistance to the frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A backlight assembly, comprising:
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a backlight having a first surface; a frame surrounding at least a portion of the backlight; and a transmissive optical film adjacent the first surface of the backlight and affixed to the frame, wherein the transmissive optical film affixed to the frame is in tension so as to provide an increased bending resistance to the frame. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A backlight assembly, comprising:
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a backlight having a first surface; a frame surrounding at least a portion of the backlight; and a composite optical film adjacent the first surface of the backlight, and affixed to the frame. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A method of making a light emitting panel, comprising:
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providing a frame comprising a top opening and a perimeter; placing at least a portion of a planar light source within the frame; affixing a transmissive optical film across the top opening of the frame, wherein the transmissive optical film is affixed along the perimeter and held in tension across the opening.
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41. A method of making a liquid crystal display, comprising:
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providing a frame comprising a top opening and a perimeter; placing at least a portion of a planar light source within the frame; affixing a transmissive optical film across the top opening of the frame, wherein the transmissive optical film is affixed along the perimeter and held in tension across the opening; and positioning a liquid crystal display module adjacent the planar light source.
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42. A hollow backlight assembly, comprising:
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a light source; a frame surrounding at least a portion of the light source, the frame having a reflective surface adjacent the light source and a first opening; an asymmetric reflective film positioned over the opening; and a transmissive optical film adjacent the asymmetric reflective film and affixed to the frame, so as to provide an increased bending resistance to the frame. - View Dependent Claims (43, 44)
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Specification