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US 2006/0139943 A1Published application
Direct type back light unit for liquid crystal display device
AssigneeLG Display Co., Ltd.
InventorsMan Lee, Sung Lee
Life of this patent
Estimating the term…
Abstract
A back light unit for a liquid crystal display device for improving uniformity of the light and dispensing with optical sheets. The back light unit includes a light source having a holographic pattern formed on a surface thereof opposite the display device which is to display a picture, and a reflective plate under the light source.
Claims36
A back light unit for a liquid crystal display device comprising:
- a light source;
- and
- a holographic pattern on a light path of a light from the light source.
A method of forming a liquid crystal display device, the method comprising:
- providing a light source;
- and
- positioning a holographic pattern on a light path of a light from the light source.
Dependencies are inferred from the claim text.