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. 01, 2007
Filed:
Nov. 22, 2004
Sung-chon Park, Gyeonggi-do, KR;
Won-kyu Kwak, Seongnam-si, KR;
Sung-Chon Park, Gyeonggi-do, KR;
Won-Kyu Kwak, Seongnam-si, KR;
Samsung SDI Co., Ltd., Suwon, KR;
Abstract
A power control apparatus for a display device that measures a power supply voltage and a cathode voltage and adjusts electrical characteristics that deviate from predetermined conditions to satisfy the conditions, thus preventing damage of a panel due to an excessive current and deterioration. The power control apparatus comprises a first power supply line for transmitting a first level of power supply voltage to a pixel; a second power supply line for transmitting a second level of power supply voltage to the pixel; a DC power generator for generating the first level of power supply voltage and the second level of power supply voltage; and an output detecting unit connected to an output of the DC power generator and for measuring a driving current of a display device. The output detecting unit includes an output detecting circuit for detecting the driving current of the display device, and an output control unit for comparing the detection signal of the output detecting circuit and a designated level of power supply voltage to adjust the detected output power to the designated level.