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.

Patent No.:

US 8232726 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 31, 2012

Filed:

Feb. 12, 2009
Applicants:

Kyeong Cheol Seo, Gumi-si, KR;

Duk Gyu Jang, Gumi-si, KR;

Jeong Sik Choi, Gumi-si, KR;

Tae Hwa Hwang, Gumi-si, KR;

Inventors:

Kyeong Cheol Seo, Gumi-si, KR;

Duk Gyu Jang, Gumi-si, KR;

Jeong Sik Choi, Gumi-si, KR;

Tae Hwa Hwang, Gumi-si, KR;

Assignee:

LG Electronics Inc., Seoul, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 17/49 (2012.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to a plasma display apparatus. The plasma display apparatus comprises an upper substrate, a first electrode and a second electrode formed on the upper substrate, a lower substrate disposed to face the upper substrate, and a third electrode and a barrier rib formed in the lower substrate. First and second black matrices are formed in the upper substrate and are separated from each other on a same straight line. According to the present invention, while maintaining the function of improving a contrast ratio and reflectance of a black matrix, a short and a spotted pattern that may occur when simultaneous exposure is performed can be reduced, and so the picture quality, the cost of production, and efficiency can be improved.


Find Patent Forward Citations

Seo, Kyeong. (2012). Plasma display apparatus with black matrices (U.S. Patent No. 8232726). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8232726

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