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:
Sep. 04, 2012
Filed:
May. 07, 2007
Akira Otsuka, Zama, JP;
Takashi Sasaki, Hiratsuka, JP;
Akira Otsuka, Zama, JP;
Takashi Sasaki, Hiratsuka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A plasma display panel has a front substrate () and a back substrate () arranged opposed to each other through a discharge space (). On the back substrate, a fluorescent layer () is formed. On the front substrate, display electrodes are formed extending in a horizontal direction, a discharge cell area is demarcated corresponding to the display electrodes, and a plurality of shielding films () extending in the horizontal direction are moreover formed at each position which is among the display electrodes and within the discharge cell area. When the distance between the shielding films and the fluorescent layer is set to be D, the width L of a shielding film and the distance S between the shielding films satisfy 0.58≦L≦D and D≦S≦1.73D. This reduces the reflectance ratio of outdoor daylight to improve lighted room contrast.