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:
Aug. 08, 2006
Filed:
Sep. 06, 2001
Ryo Ishii, Matsumoto, JP;
Ryo Ishii, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
The invention provides an electro-optical device capable of performing high-quality and high-definition gray-scale display, which can be driven with a low power consumption, and to provide a driving method therefor and an electronic apparatus using the electro-optical device. An electro-optical device according to the present invention includes a plurality of pixels. Each pixel includes a pixel electrode, a memory that stores gray-scale data, and a pulse duration control circuit that applies, to the pixel, a voltage that turns on the pixel or a voltage that turns off the pixel with a time density in accordance with the gray-scale data written to the memory. According to the electro-optical device, by turning on or off each pixel, gray-scale display can be performed by effective value control. From among a plurality of pixels, it is only necessary to write gray-scale data to the memory of a pixel whose gray-scale data written to the memory thereof needs to be changed. Thus, display can be performed with a low power consumption.