Light diffusion module and a back light module using the same

Details Light diffusion module and a back light module using the same Light diffusion module and a back light module using the same

2011-04-26

2011-04-26

Ward, John A (Department: 2885)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C362S617000, C362S620000, C362S626000

Reexamination Certificate

active

07932968

ABSTRACT:
A light diffusion module and a back light module using the same. The light diffusion module is disposed corresponding to the light source module of the back light module. The light diffusion module includes a first diffusion layer and the second diffusion layer. The first diffusion layer is disposed on top of the light source module and the top light exit surface has a plurality of first micro structures juxtapositioned to each other. The second diffusion layer is disposed on top of the first diffusion layer, and the top surface has a plurality of second micro structures juxtapositioned to each other. The ratio of the width of each first micro structure to the width of each second micro structure is between 1.1 and 1.8. The ratio of the height of each first micro structure to the height of each second micro structure is between 0.8 and 1.5.

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Taiwanese language office action dated Jun. 23, 2010.
English language translation of abstract and pertinent parts of JP 8036179 (published Feb. 6, 1996).
English language translation of abstract and pertinent parts of JP 2001-357978 (published Dec. 26, 2001).
English language translation of abstract and pertinent parts of TW 200420978.
English language translation of abstract and pertinent parts of TW 200519466.
English language translation of abstract of TW 200537054.

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