Corner enhancing device for light guide plate of backlight module
AssigneeRadiant Opto-Electronics Corporation
InventorCheng-Fa Chung
Life of this patent
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Abstract
A light guiding device to compensate insufficient lighting in a light guide plate's corner areas is provided. The light guiding device is positioned on the inner side of the lamp reflector neighboring to the electrodes at the ends of the lamp. The light guiding device has a reflection surface which reflects and directs lights toward the dim corner areas of the light guide plate, compensating the lighting and thereby reducing these dim areas.
Claims3
A corner enhancing device of a backlight module, said backlight module comprising a light guide plate, a reflection plate covering and attaching to a reflection side of said light guide plate, at least a diffusion film and at least a prism sheet covering and stacking on a light exiting side of said light guide plate, a lamp wrapped in an inner side of a lamp reflector and positioned next to a light entering side of said light guide plate, said backlight module characterized in that:
- at least a light guiding device is positioned on said inner side of said lamp reflector neighboring to an electrode at the end of said lamp;
- and
- said light guiding device reflects and directs lights emitted from said lamp toward a corner area of said light guide plate so as to provide additional lighting to said corner area.
Dependencies are inferred from the claim text.