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:
Dec. 06, 2011
Filed:
Aug. 10, 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;
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;
LG Electronics Inc., Seoul, KR;
Abstract
A plasma display device is provided. The plasma display device includes a plasma display panel (PDP) and an external light shield sheet which absorbs external light incident upon the PDP. The external light shield sheet includes a base unit and a plurality of pattern units which are formed in the base unit. Each of the pattern units contains 2-10 weight % of light absorption particles having a size of 1 μm or less. Since the external light shield sheet which can absorb and shield as much external light as possible is disposed at the front of the PDP, the plasma display device can effectively realize black images and improve bright room contrast.