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. 29, 2003
Filed:
Mar. 24, 2000
Masahiro Okuyama, Inazawa, JP;
Naoaki Komiya, Ohgaki, JP;
Sanyo Electric Co., Ltd., , JP;
Abstract
There are provided a data register ( ) for driving an EL element ( ) by a current flowing in a data line ( ) via a TFT ( ) while sequentially capturing input digital video data for each data line, a latch circuit ( ) for holding the data received in the data register ( ) during 1 H period, and n analog switches ( to ) provided between each data line ( ) and a power supply line ( ), to which n bit of digital video data for each one data line is input bit by bit as each control signal. The transistors constituting each switch are made different sizes. As the current amount flowing in each switch therefore differs, the EL element emits light with a luminance in accordance with the digital video data.