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US 2004/0169787 A1Published application
Backlight unit, liquid crystal display module using the same, and method of selecting viewing angle using the same
AssigneeLG.Philips LCD Co., Ltd.
InventorHeume Il Baek
Life of this patent
Estimating the term…
Abstract
A backlight unit includes a light guide plate, at least two lamps arranged along a side of the light guide plate for irradiating light onto the light guide plate, and a plurality of lamp housings having different shapes for enclosing each of the lamps.
Claims21
A backlight unit, comprising:
- a light guide plate;
- at least two lamps arranged along a side of the light guide plate for irradiating light onto the light guide plate;
- and
- a plurality of lamp housings having different shapes for enclosing each of the lamps.
1 more element
A liquid crystal display module, comprising:
- a liquid crystal display panel;
- a main support for supporting the liquid crystal display panel;
- a light guide plate disposed on the main support;
- at least one optical sheet arranged between the light guide plate and the liquid crystal display panel;
- at least two lamps arranged along sides of the light guide plate to irradiate light onto the light guide plate;
- and
- a plurality of lamp housings having different shapes to enclose the lamps.
4 more elements
A method for selecting a viewing angle of a liquid crystal display panel, comprising:
- selectively turning ON and OFF first, second, third and fourth lamps disposed in first, second, third, and fourth lamp housings, respectively, positioned along sides of a light guide plate,
- wherein the first, second, and third lamp housings have a first cross sectional shape and the fourth lamp housing has a second cross sectional shape different from the first cross sectional shape.
Dependencies are inferred from the claim text.