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. 07, 2010
Filed:
Dec. 07, 2007
Hong Rae Cha, Seoul, KR;
Ji Hoon Sohn, Seoul, KR;
Sam Je Cho, Seoul, KR;
Joon Kwon Moon, Seoul, KR;
Woon Seo Shin, Seoul, KR;
Hong Rae Cha, Seoul, KR;
Ji Hoon Sohn, Seoul, KR;
Sam Je Cho, Seoul, KR;
Joon Kwon Moon, Seoul, KR;
Woon Seo Shin, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
The present disclosure relates to a plasma display device including a plasma display panel and a sheet disposed at a front surface of the plasma display panel to protect the plasma display panel from external light. The sheet includes a base unit formed with a plurality of grooves and a plurality of pattern unit lines formed on the plurality of grooves of the base unit and has a refractive index different from that of the base unit. The number of the pattern unit lines overlapped with any one of a plurality of discharge cells formed in the panel is 8 to 25. A lower end of the pattern unit lines has a width larger than an upper end of the pattern unit lines, and the upper end of the pattern unit lines is closer to the plasma display panel.