Title:
SIGNAL PROCESSING DEVICE AND IMAGE DISPLAY DEVICE INCLUDING SAME
Document Type and Number:
WIPO Patent Application WO/2021/172630
Kind Code:
A1
Abstract:
The present invention relates to a signal processing device and an image display device including same. A signal processing device according to an embodiment of the present invention comprises: an amplifier for performing amplification on the basis of an input differential signal; an output driving unit for outputting an audio output signal on the basis of an output signal of the amplifier; a reference voltage output unit for outputting a reference voltage when power is turned on; a pre-output driving unit for pre-compensating an offset voltage to output a compensation signal on the basis of the output signal of the amplifier after power is turned on; and a first switching device disposed between an output terminal of the output driving unit and an output terminal of the pre-output driving unit, wherein when power is turned on, the output driving unit operates after the first switching device is turned on. Accordingly, a popping noise and harmonic distortion can be reduced when power is turned on.
More Like This:
| JP3259279 | PROBLEM TO BE SOLVED: To drive a plasma display panel |
| JP2010175667 | PLASMA DISPLAY DEVICE |
| JP2001249641 | DRIVING METHOD AND DEVICE FOR PLASMA DISPLAY PANEL |
Inventors:
JUNG YOUNGJAE (KR)
KIM SUNGWOONG (KR)
KANG WOOSEONG (KR)
KIM SUNGWOONG (KR)
KANG WOOSEONG (KR)
Application Number:
PCT/KR2020/002876
Publication Date:
September 02, 2021
Filing Date:
February 28, 2020
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
G09G3/296; H03F1/30; H03F1/32; H03F3/217
Foreign References:
| KR20130006424A | 2013-01-16 | |||
| US20050285671A1 | 2005-12-29 | |||
| JP2007214633A | 2007-08-23 | |||
| JP2002354571A | 2002-12-06 | |||
| US20100321112A1 | 2010-12-23 |
Attorney, Agent or Firm:
PARK, Byung Chang (KR)
Download PDF: