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. 06, 2005
Filed:
Feb. 09, 2000
Naoaki Komiya, Ohgaki, JP;
Masahiro Okuyama, Inazawa, JP;
Naoaki Komiya, Ohgaki, JP;
Masahiro Okuyama, Inazawa, JP;
Sanyo Electric Co., Ltd., , JP;
Abstract
An insulator substrate () is provided with a display pixel region () comprising an electroluminescence element () having a cathode (), emissive layer (), and anode (), and with first and second TFTs for driving the element. Surrounding the display pixel region (), a peripheral drive circuit region () having a third TFT for driving each pixel is further provided on the insulator substrate (). The cathode () is disposed in a region other than the peripheral drive circuit region (). With this arrangement, generation of a back channel by applying the EL element potential to the cathode is prevented in a complementary TFT employed in the peripheral drive circuit region for controlling the display region, thereby suppressing changes in threshold values due to such back channel generation. As a result, an EL display device with reduced generation of penetration current and minimized increased current consumption is achieved.