公开(公告)号：US12183259B2

公开(公告)日：2024-12-31

申请号：US18321660

申请日：2023-05-22

Applicant: LG ELECTRONICS INC.

Inventor： Jihoon Lee ,  Jongchan Kim ,  Kyeongryeol Park ,  Jeonghyu Yang ,  Seoksoo Lee ,  Byungtae Choi

IPC: G09G3/32 ,  G09G3/20 ,  G09G3/3208 ,  G09G5/00

Abstract: The present disclosure relates to a signal processing device and an image display apparatus including the same. A signal processing device according to an embodiment of the present disclosure includes: an input interface to receive an image signal; a first image processor to generate first image frame data based on the image signal; a second image processor to generate second image frame data scaled down from the first image frame data based on the image signal; and an output interface to receive the first image frame data from the first image processor and the second image frame data from the second image processor and to output the first image frame data and the second image frame data, wherein the first image frame data output from the output interface is more delayed than the second image frame data output from the output interface. Accordingly, a timing controller may accurately and rapidly perform signal processing for a panel.

公开(公告)号：US11748855B2

公开(公告)日：2023-09-05

申请号：US17334316

申请日：2021-05-28

Applicant: LG ELECTRONICS INC.

Inventor： Kyeongryeol Park ,  Jongchan Kim ,  Jeonghyu Yang

IPC: G09G3/20 ,  G06K9/66 ,  G06T5/00 ,  G06T19/20 ,  G06T7/60 ,  G06T7/00 ,  H04N13/122 ,  H04N13/133 ,  H04N5/57

CPC classification number: G06T5/003 ,  G06T5/009 ,  G06T7/0002 ,  G06T7/60 ,  G06T19/20 ,  G09G3/2003 ,  G09G3/2048 ,  H04N5/57 ,  H04N13/122 ,  H04N13/133 ,  G06T2207/20016 ,  G06T2207/20208 ,  G06T2207/30168 ,  G06T2219/2012

Abstract: Disclosed is a signal processing device and an image display apparatus including the same. The signal processing device and the image display apparatus comprise: a first reduction unit to receive a image signal and reduce noise of the received image signal, and a second reduction unit to perform grayscale amplification based on the image signal from the first reduction unit, wherein the second reduction unit is configured to perform the grayscale amplification so that upper-limit level of grayscale of the image signal from the first reduction unit is greater than upper-limit level of grayscale of an OSD signal. Accordingly, OSD area may be uniformly displayed regardless of ambient luminance.

公开(公告)号：US11669941B2

公开(公告)日：2023-06-06

申请号：US17377132

申请日：2021-07-15

Applicant: LG ELECTRONICS INC.

Inventor： Saem Park ,  Jeonghyu Yang ,  Jongchan Kim ,  Kyeongryeol Park

IPC: G06T5/00 ,  G09G3/20 ,  G06T19/20 ,  H04N13/122 ,  H04N13/133 ,  G06T7/00 ,  G06T7/60 ,  H04N5/57

CPC classification number: G06T5/003 ,  G06T5/009 ,  G06T7/0002 ,  G06T7/60 ,  G06T19/20 ,  G09G3/2003 ,  G09G3/2048 ,  H04N5/57 ,  H04N13/122 ,  H04N13/133 ,  G06T2207/20016 ,  G06T2207/20208 ,  G06T2207/30168 ,  G06T2219/2012

Abstract: Disclosed is a signal processing device and an image display apparatus including the same. In the signal processing device and the image display apparatus according to the present disclosure, a High Dynamic Range (HDR) processor receives an image signal and adjust a luminance of the image signal, and a reduction unit configured to amplify the adjusted luminance of the image signal and increase a resolution of the grayscale of the image signal to generate an enhanced image signal, wherein the enhanced image signal provides an increased luminance and grayscale resolution of the image signal while maintaining high dynamic range within the displayed HDR image. Accordingly, expression of high grayscale of a received image may improve.

公开(公告)号：US11417293B2

公开(公告)日：2022-08-16

申请号：US16978881

申请日：2018-03-13

Applicant: LG ELECTRONICS INC.

Inventor： Kyeongryeol Park ,  Yeonoh Nam

IPC: G09G5/06 ,  G06T11/00 ,  H04N1/60 ,  H04N9/64

Abstract: A display device according to an embodiment of the disclosure comprises: a linear gamut mapping unit for deriving a linear gamut mapping result for matching a gamut of an input image signal to a target display gamut; a non-linear gamut mapping unit for deriving a non-linear gamut mapping result for matching the gamut of the input image signal to the target display gamut; and a mixing unit for generating an output image signal by mixing the linear gamut mapping result and the non-linear gamut mapping result. The disclosure may provide an optimal gamut mapping result that is intended by a user and an originator.

公开(公告)号：US11081041B2

公开(公告)日：2021-08-03

申请号：US16517184

申请日：2019-07-19

Applicant: LG ELECTRONICS INC.

Inventor： Saem Park ,  Jeonghyu Yang ,  Jongchan Kim ,  Kyeongryeol Park

IPC: G06T5/00 ,  G09G3/20 ,  G06K9/66 ,  G06T19/20 ,  H04N13/122 ,  H04N13/133 ,  G06T7/00 ,  G06T7/60 ,  H04N5/57

Abstract: Disclosed is a signal processing device and an image display apparatus including the same. In the signal processing device and the image display apparatus according to the present disclosure, a High Dynamic Range (HDR) processor receives an image signal and adjust a luminance of the image signal, and a reduction unit configured to amplify the adjusted luminance of the image signal and increase a resolution of the grayscale of the image signal to generate an enhanced image signal, wherein the enhanced image signal provides an increased luminance and grayscale resolution of the image signal while maintaining high dynamic range within the displayed HDR image. Accordingly, expression of high grayscale of a received image may improve.

公开(公告)号：US11056039B2

公开(公告)日：2021-07-06

申请号：US16517486

申请日：2019-07-19

Applicant: LG ELECTRONICS INC.

Inventor： Kyeongryeol Park ,  Jongchan Kim ,  Jeonghyu Yang

IPC: G09G3/20 ,  G06K9/66 ,  G06T5/00 ,  G06T19/20 ,  H04N13/122 ,  H04N13/133 ,  G06T7/00 ,  G06T7/60 ,  H04N5/57

Abstract: Disclosed is a signal processing device and an image display apparatus including the same. The signal processing device and the image display apparatus comprise: a first reduction unit to receive a image signal and reduce noise of the received image signal, and a second reduction unit to perform grayscale amplification based on the image signal from the first reduction unit, wherein the second reduction unit is configured to perform the grayscale amplification so that upper-limit level of grayscale of the image signal from the first reduction unit is greater than upper-limit level of grayscale of an OSD signal. Accordingly, OSD area may be uniformly displayed regardless of ambient luminance.