Invention Grant
- Patent Title: Phase shift circuit and backlight unit having the same
- Patent Title (中): 相移电路和具有相同功能的背光单元
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Application No.: US12104236Application Date: 2008-04-16
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Publication No.: US07808216B2Publication Date: 2010-10-05
- Inventor: Taek Soo Kim
- Applicant: Taek Soo Kim
- Applicant Address: KR Seoul
- Assignee: LG Innotek Co., Ltd.
- Current Assignee: LG Innotek Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR10-2007-0037531 20070417; KR10-2007-0059776 20070619
- Main IPC: G05F3/00
- IPC: G05F3/00 ; G09G3/36
Abstract:
Disclosed is a phase shift circuit. The phase shift circuit comprises a frequency multiplier outputting a square wave signal by frequency-multiplying a reference signal, a frequency synchronizer receiving the square wave signal to output a triangle wave signal, and a PWM nodule receiving the triangle wave signal to output a phase-shifted multi-channel control signal.
Public/Granted literature
- US20080258639A1 PHASE SHIFT CIRCUIT AND BACKLIGHT UNIT HAVING THE SAME Public/Granted day:2008-10-23
Information query
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