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US 7,255,462 B2Granted
Dimmer device for backlight module
AssigneeK-Bridge Electronics Co., Ltd.
InventorWen-Pao Tseng
Life of this patent
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Abstract
At least one light distribution device is provided in the spacing between adjacent light sources to allow light diffused from both sides of the light sources to be properly refracted and reflect so as to more evenly diffuse light toward a diffuser plate and thereby, eliminate the dark bands between adjacent light sources for effectively solving the bright bands and dark bands problem observed in prior art LCD modules.
Claims17
An improved light distribution device for a backlight module comprising:
- a reflector mask;
- multiple light sources located above the reflector mask;
- multiple optical films, including a diffuser plate, located above the light sources;
- a liquid crystal display (LCD) located above the optical films, wherein each light source is spaced apart from an adjacent light source;
- at least one light distribution device located on an upper surface of the reflector mask, the at least one light distribution device being located in the space between adjacent light sources, the light distribution device being configured to both refract and diffuse light originating from the light sources towards the diffuser plate, wherein the light distribution device is formed as a solid stick structure.
2 more elements
Dependencies are inferred from the claim text.