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:
Sep. 17, 2013
Filed:
Sep. 17, 2003
Hiroki Awakura, Yokohama, JP;
Naruhiko Kasai, Yokohama, JP;
Tsutomu Furuhashi, Yokohama, JP;
Toshihiro Satou, Mobara, JP;
Hiroki Awakura, Yokohama, JP;
Naruhiko Kasai, Yokohama, JP;
Tsutomu Furuhashi, Yokohama, JP;
Toshihiro Satou, Mobara, JP;
Hitachi Displays, Ltd., Chiba-Ken, JP;
Panasonic Liquid Crystal Display Co., Ltd., Hyogo-Ken, JP;
Abstract
The present invention comprises: a display unit having a plurality of pixels arranged therein, each pixel including an organic EL element, a switching TFT, and a drive TFT; a data signal drive circuit for receiving image data for each frame period and outputting an image signal based on the image data; a scanning signal drive circuit for outputting a scanning signal for controlling a timing at which the switching element of each of the plurality of pixels receives the image signal; and a current source (a light emission power supply unit and a cathode potential control circuit together) for outputting a current supplied to the light emitting unit of each of the plurality of pixels through its drive element; wherein the current source modulates the value of the output current within each frame period.