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:
Jun. 24, 2008
Filed:
Jun. 28, 2004
Yoichi Igarashi, Mobara, JP;
Yoichi Igarashi, Mobara, JP;
Hitachi Displays, Ltd., Mobara-Shi, JP;
Abstract
In a display device, input display data processed by an input processing circuit is stored in a frame memory as first video data. Next-inputted video data is stored in another frame memory as second video data. The stored first video data is read out as video signals of a first field in response to a double-speed clock signal and is supplied to respective drain drivers. A comparison circuit compares second video data and first video data in the frame memory for each pixel. An output data processing circuit is controlled based on the comparison result. When second video data is darker than first video data, black display data is supplied to respective drain drivers as display data of the second field, while when second video data is brighter than first video data, white display data is supplied to respective drain drivers as display data of the second field.