Invention Grant
- Patent Title: Light source drive circuit
- Patent Title (中): 光源驱动电路
-
Application No.: US14091059Application Date: 2013-11-26
-
Publication No.: US09167650B2Publication Date: 2015-10-20
- Inventor: Hyo Joon Park , Sang Yong Kim
- Applicant: LG DISPLAY CO., LTD.
- Applicant Address: KR Seoul
- Assignee: LG DISPLAY CO., LTD.
- Current Assignee: LG DISPLAY CO., LTD.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR10-2012-0136751 20121129
- Main IPC: H05B41/16
- IPC: H05B41/16 ; H05B41/24 ; H05B33/08
Abstract:
A light source drive circuit is disclosed which uses a low withstanding voltage transistor is discussed. The light source drive circuit can enhance price competitiveness. Also, the light source drive circuit can allow a current flowing through an LED portion to be eliminated when a PWM signal is not applied. Therefore, the light source drive circuit can enhance a contrast ratio.
Public/Granted literature
- US20140145640A1 LIGHT SOURCE DRIVE CIRCUIT Public/Granted day:2014-05-29
Information query
