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:
Oct. 30, 2007
Filed:
Apr. 06, 2005
Masanori Yamaguchi, Kanagawa, JP;
Masanori Yamaguchi, Kanagawa, JP;
Sony Corporation, , JP;
Abstract
A drive circuit for a flat display apparatus which may include organic EL devices is disclosed wherein the light emission characteristic can be set variously and the color adjustment can be performed with a high degree of accuracy with a simple and easy configuration. A plurality of candidate voltages from voltage dividing circuits are selected in response to original reference voltage setting data to produce original reference voltages, and reference voltages for digital to analog conversion are produced from the original reference voltages. For the original reference voltages at the opposite ends of the voltage dividing circuits, the voltages of production references are varied with rough adjustment data, and the other original reference voltages are produced with reference to the original reference voltages at the opposite ends by the voltage dividing circuits connected in series.