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. 14, 2009
Filed:
Sep. 23, 2005
Ryoichi Yokoyama, Ogaki, JP;
Ryoichi Yokoyama, Ogaki, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
The retaining circuit, which retains the digital image signal fed from the drain signal linein response to the signal inputted from gate signal line, is formed. The signal selection circuit, which selects one of the two signals (signal A or signal B) in response to the signal from the retaining circuitand which supplies the selected signal to the display electrode, is formed. Also, the reference voltage generation circuit, which provides the signal A and signal B, is formed within the display panel. When the display device is under the digital display mode, the reference voltage generation circuitprepares the signal fed to the display electrode. Thus, there is no need to supply the signal A or signal B from outside, resulting in the simpler configuration of the external circuits. Also, since the drive of the external circuits can be completely halted under the digital display mode, it is possible to further reduce the consumption of the electric power.