The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 18, 2011

Filed:

Aug. 25, 2008
Applicants:

Jeong Tae Seo, Gumi-si, KR;

Moon Bok Lee, Gumi-si, KR;

Jun Sang Park, Gumi-si, KR;

Inventors:

Jeong Tae Seo, Gumi-si, KR;

Moon Bok Lee, Gumi-si, KR;

Jun Sang Park, Gumi-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); G02B 5/02 (2006.01); F21V 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to an optical sheet for a backlight unit of a TFT-LCD and a TFT-LCD including the same. The optical sheet of the present invention includes a transparent base sheet, and a light diffusion layer in which a diffusion pattern comprised of a plurality of protrusions is formed on the transparent base sheet. The diffusion pattern satisfies an aspect ratio of 0.8 or more, the aspect ratio being a ratio of a radius (l) of a unit body portion of the protrusion, which is formed on the transparent base sheet, to a thickness (d) of the protrusion.


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Seo, Jeong. (2011). Optical sheet for tft-lcd back light unit and liquid crystal display having the optical sheet (U.S. Patent No. 7872711). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7872711

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