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:
Apr. 07, 2015
Filed:
Sep. 12, 2012
Kazuhisa Mizusako, Shiojiri, JP;
Hitoshi Sasaki, Shiojiri, JP;
Kazuhisa Mizusako, Shiojiri, JP;
Hitoshi Sasaki, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid crystal display device according to the invention has an effect that burn-in and a flicker do not occur. Dummy pixels are provided around pixels of the liquid crystal display device. A first voltage higher in order than a reference voltage and a second voltage lower in order than the first voltage are applied to a pixel electrode of a liquid crystal device included in the dummy pixel while being temporally shifted. The liquid crystal display device changes, on the basis of an electric current flowing to a second opposed electrode when the first voltage is applied and an electric current flowing to the second opposed electrode when the second voltage is applied, a ratio of effective voltages of a positive voltage and a negative voltage applied to a liquid crystal device included in the pixel that displays an image.