公开(公告)号：US20230067949A1

公开(公告)日：2023-03-02

申请号：US17904369

申请日：2020-02-18

Applicant: LG ELECTRONICS INC.

Inventor： Taksu Moon ,  Youngjae JUNG

IPC: G09G3/20 ,  H03K19/20

Abstract: An image display apparatus is disclosed. The image display according to an embodiment of the present disclosure includes a signal processing device including a first logic circuit to process a first voltage range of a voltage level of the input signal, a second logic circuit to process a second voltage range of the voltage level of the input signal, higher than the first voltage range, and a protection control circuit including a protection switch and a protection controller for controlling the protection switch, wherein the protection switch is turned on based on the protection controller being turned off or powered down. Accordingly, a breakdown phenomenon can be reduced in case of power off or power down.

公开(公告)号：US20180129462A1

公开(公告)日：2018-05-10

申请号：US15574135

申请日：2015-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Joonghee HAN ,  Donghee LEE ,  Woojin CHOI ,  Seunghyun HEO ,  Gahyun Chloe SUN ,  Sangrok LEE ,  Hyeongjin PARK ,  Youngjae JUNG ,  Kanghak HAN ,  Jaeho LEE ,  Hojun NAM ,  Donguk LEE ,  Woojin JEONG ,  Seokho JANG ,  Changhoon KIM

IPC: G06F3/14

CPC classification number: G06F3/1446 ,  G06F3/1415 ,  G09G2300/026 ,  G09G2360/04 ,  H04N5/445 ,  H04N21/4122 ,  H04N21/4307 ,  H04N21/436 ,  H04N21/4363 ,  H04N21/440263 ,  H04N21/440272 ,  H04N21/4621

Abstract: A display device operation method according to an embodiment of the present invention comprises the steps of: outputting first content on a screen of the display device; receiving a screen link request for linking a first screen of the display device and a second screen of another display device connected to the display device; and controlling the display device and another display device such that the first content is output on a merged screen in which the first screen and the second screen are merged according to the received screen link request.

公开(公告)号：US20230283246A1

公开(公告)日：2023-09-07

申请号：US17802854

申请日：2020-02-28

Applicant: LG ELECTRONICS INC.

Inventor： Youngjae JUNG ,  Sungwoong KIM ,  Wooseong KANG

IPC: H03F3/183

CPC classification number: H03F3/183 ,  H03F2200/03

Abstract: Disclosed are a signal processing device and an image display apparatus including the same. The signal processing device includes an amplifier to perform amplification based on an input differential signal, an output driver to output an audio output signal based on an output signal from the amplifier, a reference voltage output device to output a reference voltage in response to power ON, a pre-output driver configured to pre-compensate for an offset voltage and output a compensation signal, based on an output signal from the amplifier after the power ON, and a first switching device disposed between an output terminal of the output driver and an output terminal of the pre-output driver, wherein the output driver operates after the first switching device is turned on in response to the power ON. Accordingly, pop noise and harmonic distortion in case in which power is turned on may be reduced.