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:
Jan. 05, 2010
Filed:
Dec. 28, 2006
Applicant:
Sung Yong Park, Gumi-si, KR;
Inventor:
Sung Yong Park, Gumi-si, KR;
Assignee:
LG. Display Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 41/36 (2006.01); G09G 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lamp driving method and an inverter for driving the lamp are disclosed which can stably maintain a desired duty ratio of a pulse width modulation (PWM) signal for controlling driving of a lamp. The method for driving lamp, comprising: generating an inner pulse width modulation (PWM) signal; outputting a DC level in response to a duty ratio of an external PWM signal; selectively outputting the external PWM signal or the inner PWM signal in accordance with the DC level; and generating an AC drive signal Acs in response to the external PWM signal or the inner PWM signal, and supplying the AC drive signal to the lamp.