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.:
Date of Patent:
Oct. 19, 2010
Filed:
Aug. 16, 2007
Hong Rae Cha, Seoul, KR;
Ji Hoon Sohn, Seoul, KR;
Sam Je Cho, Seoul, KR;
Woo Sung Jang, Seoul, KR;
Woon Seo Shin, Seoul, KR;
Kang Yoon Kim, Seoul, KR;
Seoung Won Lee, Seoul, KR;
Hong Rae Cha, Seoul, KR;
Ji Hoon Sohn, Seoul, KR;
Sam Je Cho, Seoul, KR;
Woo Sung Jang, Seoul, KR;
Woon Seo Shin, Seoul, KR;
Kang Yoon Kim, Seoul, KR;
Seoung Won Lee, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
The plasma display device comprises a plasma display panel and the filter which is formed at a front of the plasma display panel, wherein the filter includes an external light shielding sheet which comprises a base unit, and a plurality of pattern units formed on the base unit, wherein a bottom of the pattern units, which is wider than a top of the pattern units, comprises a concave having a curvature. The device can improve bright room contrast. Also, the sharpness of the display images may be enhanced by reducing the bleeding phenomenon of the display images as well as the adhesiveness of the filter may be enhanced by forming the bottom of the pattern units of the external light shielding sheet as a concave shape in which the center area is depressed into the inside.