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:
May. 12, 2009
Filed:
Mar. 09, 2005
Joo-yul Lee, Asan-si, KR;
Joo-Yul Lee, Asan-si, KR;
Samsung SDI Co., Ltd., Suwon, KR;
Abstract
A display panel driving apparatus that applies a rising ramp voltage in a reset period includes a first voltage applying unit outputting the first voltage, a second voltage applying unit outputting the second voltage, a first ramp switching unit coupled between the first and second voltage applying units to control the rising ramp voltage, and a first scanning switching unit coupled between the first ramp switching unit and the electrode to apply a high level scanning voltage to the electrode. The rising ramp voltage is applied to the electrode when the first voltage is output from the first voltage applying unit, the first ramp switching unit is turned on, and the first scanning switching unit is turned on. A ramp reset signal is generated without a conventional path switch that carries out a rising ramp interval in the reset period.