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:
Mar. 04, 2008
Filed:
Aug. 18, 2006
Tae-gyu Kim, Suwon-si, KR;
Tae-Gyu Kim, Suwon-si, KR;
Samsung SDI Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
A clock generator, which can be included in an Organic Light Emitting Display (OLED), includes four switching units and two inverters. Each of the switching units includes two transistors. Transistors of two switching units that are connected to a high-level voltage line are PMOS transistors, and transistors of two switching units that are connected to a low-level voltage line are NMOS transistors. The switching units are sequentially turned on/off in response to four control signals so that the clock generator generates a clock signal. Each of the control signals has a duty ratio of 50%, and there is a phase difference of 90° between the control signals. The clock signal alternates between a low level and a high level every ¼ of a cycle of each of the control signals.