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:
Nov. 30, 2010
Filed:
Jun. 07, 2007
Do-kyung Kim, Gyeonggi-do, KR;
Hyun-young Park, Seoul, KR;
Do-Kyung Kim, Gyeonggi-do, KR;
Hyun-Young Park, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
A source driver includes a control unit, a data selecting unit, a gamma circuit, a level shifter and a driving buffer unit. The control unit compares a frame count value with a predetermined value N, where N is a natural number larger than two, and outputs a data select signal and a driver control signal based on the comparison. The data selecting unit outputs one of input data and black data in response to the data select signal. The gamma circuit generates a grayscale voltage based on selected data from the data selecting unit and the level shifter generates a driving voltage based on the grayscale voltage. The driving buffer unit provides an output voltage based on the driving voltage to a data line of a display device in response to the driver control signal. Accordingly, the source driver prevents afterimages, improves moving image quality and reduces power consumption