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. 09, 2008
Filed:
Apr. 21, 2005
Kazuaki Sakata, Yamanashi-ken, JP;
Masaru Nishimura, Yamanashi-ken, JP;
Atsushi Hirota, Yamanashi-ken, JP;
Tsutomu Tokunaga, Yamanashi-ken, JP;
Hai Lin, Yamanashi-ken, JP;
Kazuaki Sakata, Yamanashi-ken, JP;
Masaru Nishimura, Yamanashi-ken, JP;
Atsushi Hirota, Yamanashi-ken, JP;
Tsutomu Tokunaga, Yamanashi-ken, JP;
Hai Lin, Yamanashi-ken, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
A plasma display device and a method of driving a plasma display panel are provided for improving the contrast without degrading the image quality. Each of display cells formed on the plasma display panel has a magnesium oxide layer containing magnesium oxide crystals. The magnesium oxide crystals are excited by an electron beam irradiated thereto and emit cathode luminescence light having a peak in a wavelength range of 200 to 300 nm. In order to trigger a rest discharge in all the display cells, each row electrode pair of the plasma display panel is applied with a reset pulse which has a particular pulse waveform. The voltage value of this reset pulse slowly changes over time to reach a peak voltage value.