公开(公告)号：US20210400231A1

公开(公告)日：2021-12-23

申请号：US17287731

申请日：2019-10-23

Applicant: LG ELECTRONICS INC.

Inventor： Saem PARK ,  Seokpan KANG ,  Yongtaek GONG ,  Sangchurl NAM ,  Yeonoh NAM ,  Jeonghyu YANG ,  Kyungmee LEE ,  Myongyoung LEE ,  Seoksoo LEE ,  Wonwoo LEE ,  Seungjong CHOI ,  Jongwoo HA

IPC: H04N7/01 ,  G06T7/00 ,  G06N3/08 ,  H04N21/647

Abstract: Disclosed are a signal processing device and an image display apparatus including the same. The signal processing device of an embodiment of the present disclosure includes: a quality calculator configured to calculate an source quality of an image signal received from an external settop box or a network; an image quality setter configured to set an image quality of the image signal based on the calculated source quality; and an image quality processor configured to perform image quality processing on the image signal based on the set image quality, wherein in response to the source quality of the received image signal being changed at a first time point, the image quality setter changes an image quality setting sequentially from a first setting to a second setting; and based on the image quality setting, the image quality processor performs image quality processing. Accordingly, flicker may be reduced when an image quality is changed due to a change in the source quality of the received image signal.

公开(公告)号：US20240348760A1

公开(公告)日：2024-10-17

申请号：US18527031

申请日：2023-12-01

Applicant: LG ELECTRONICS INC.

Inventor： Yeonoh NAM ,  Kyuri KIM ,  Yejin HONG

IPC: H04N9/73 ,  G06T5/90 ,  G06T7/90 ,  G06V10/56

CPC classification number: H04N9/73 ,  G06T5/90 ,  G06T7/90 ,  G06V10/56 ,  G06T2207/10024

Abstract: The present disclosure relates to an image display apparatus. The image display apparatus according to an embodiment of the present disclosure includes: a display; an interface configured to exchange data with an external server or an external electronic device; and a signal processing device configured to extract emotion-based color scale information from an image frame of an input image, and to adjust white balance of the image frame based on the extracted information. Accordingly, the image frame may be displayed with an emotion-based image quality.

公开(公告)号：US20210304689A1

公开(公告)日：2021-09-30

申请号：US16918846

申请日：2020-07-01

Applicant: LG ELECTRONICS INC.

Inventor： Yeonoh NAM ,  Kyuyong CHUNG ,  Jongmin LEE

IPC: G09G3/34

Abstract: Provided are a display device and an operating method thereof. The display device includes a liquid crystal display panel, a backlight unit including a plurality of light sources for supplying light to the liquid crystal display panel and driven in a state of being divided into a plurality of blocks corresponding to the number of the light sources, and a backlight dimming controller configured to calculate dimming values of the plurality of blocks. The backlight dimming controller is configured to divide each of the plurality of blocks into a plurality of unit blocks and control brightness of an output image differently for each of the unit blocks.

公开(公告)号：US20240013751A1

公开(公告)日：2024-01-11

申请号：US17931467

申请日：2022-09-12

Applicant: LG ELECTRONICS INC.

Inventor： Yeonoh NAM ,  Sangchurl NAM ,  Chungbin IM

IPC: G09G5/10

CPC classification number: G09G5/10 ,  G09G2320/066 ,  G09G2320/0626 ,  G09G2320/0242

Abstract: Provided is a display device including a communication device for receiving an input image containing a first frame and a second frame, an image quality controller for performing a first image quality control on at least a portion of the first frame, and a gain generator for calculating a gain of the second frame based on the first frame where the first image quality control has been performed, wherein the image quality controller performs a second image quality control applied with the gain for at least a portion of the second frame.

公开(公告)号：US20220215792A1

公开(公告)日：2022-07-07

申请号：US17612029

申请日：2019-05-23

Applicant: LG ELECTRONICS INC.

Inventor： Yeonoh NAM ,  Seokpan KANG ,  Sangchurl NAM ,  Myongyoung LEE ,  Chungbin IM

IPC: G09G3/20

Abstract: The present invention relates to a display device which changes the quality of displayed images in real time according to the genres of the images, the display device comprising: a storage unit which stores picture quality according to the genres of images; a display unit which displays an image corresponding to an input image signal; and a control unit which acquires the genre of an image and changes the quality of the image to the picture quality corresponding to the genre.

公开(公告)号：US20200320940A1

公开(公告)日：2020-10-08

申请号：US16714510

申请日：2019-12-13

Applicant: LG ELECTRONICS INC.

Inventor： Myongyoung LEE ,  Jongmin LEE ,  Taeha UM ,  Yeonoh NAM

IPC: G09G3/34 ,  G02F1/1335

Abstract: The present invention relates to a liquid crystal display device that provides improved local dimming. The liquid crystal display device includes: a liquid crystal display panel; a backlight unit divided and driven into a plurality of blocks and supplying light to the liquid crystal display panel; a local dimming value calculator calculating a dimming value of each of the blocks in accordance with input image data; and a backlight dimming controller having a pixel corrector correcting image data on the basis of the dimming values, in which the backlight dimming controller can correct at least some of the dimming values of the blocks calculated by the local dimming value calculator.

公开(公告)号：US20240171787A1

公开(公告)日：2024-05-23

申请号：US18551373

申请日：2021-05-13

Applicant: LG ELECTRONICS INC.

Inventor： Yeonoh NAM ,  Myongyoung LEE ,  Seokpan KANG

IPC: H04N21/2343 ,  H04N21/234 ,  H04N21/24 ,  H04N21/4402

CPC classification number: H04N21/2343 ,  H04N21/23418 ,  H04N21/2402 ,  H04N21/4402

Abstract: An A(Audio)/V(Video) transmitting device according to an embodiment of the present disclosure may comprise: a RF transmitting module configured to transmit an image data to an A/V receiving device; and a processor configured to: obtain network state information, determine a compression ratio of an original image and values of one or more quality factors based on the obtained network state information, compress an image signal processed according to the determined values of one or more quality factors with the determined compression ratio, and transmit the compressed image to the A/V receiving device through the RF transmitting module.

公开(公告)号：US20220375426A1

公开(公告)日：2022-11-24

申请号：US17349099

申请日：2021-06-16

Applicant: LG ELECTRONICS INC.

Inventor： Yeonoh NAM ,  Myongyoung LEE ,  Sangchurl NAM ,  Younjin KIM

IPC: G09G5/04 ,  G09G3/20 ,  G06T7/90

Abstract: A display device includes a display configured to display an image and a controller configured to reduce a blue component in the image when an execution command of a blue light reduction function is received. The controller may detect a preset part or color and perform control such that an amount of reduction of a blue component of an area corresponding to the detected part or color is different from that of the remaining area.

公开(公告)号：US20220164930A1

公开(公告)日：2022-05-26

申请号：US17195632

申请日：2021-03-08

Applicant: LG ELECTRONICS INC.

Inventor： Hyomin KIM ,  Yeonoh NAM

IPC: G06T5/00 ,  G06T5/40 ,  G09G5/10

Abstract: A tone mapping apparatus includes a dynamic tone mapping module configured to generate a first tone mapping curve based on a luminance distribution histogram of input image data and generate first image data from the input image data using the first tone mapping curve, and a processor configured to generate an RGB distribution histogram, a detail region histogram and a high-luminance region histogram based on pixel information of the first image data, generate a second tone mapping curve using the RGB distribution histogram, the detail region histogram and the high-luminance region histogram and generate output image data from the first image data using the second tone mapping curve.

公开(公告)号：US20240098215A1

公开(公告)日：2024-03-21

申请号：US18523259

申请日：2023-11-29

Applicant: LG ELECTRONICS INC.

Inventor： Saem PARK ,  Seokpan KANG ,  Yongtaek GONG ,  Sangchurl NAM ,  Yeonoh NAM ,  Jeonghyu YANG ,  Kyungmee LEE ,  Myongyoung LEE ,  Seoksoo LEE ,  Wonwoo LEE ,  Seungjong CHOI ,  Jongwoo HA

IPC: H04N7/01 ,  G06N3/08 ,  G06T7/00 ,  H04N21/647

CPC classification number: H04N7/0132 ,  G06N3/08 ,  G06T7/0002 ,  H04N7/0117 ,  H04N21/647 ,  G06T2207/10016 ,  G06T2207/30168

Abstract: Disclosed are a signal processing device and an image display apparatus including the same. The signal processing device of an embodiment of the present disclosure includes: a quality calculator configured to calculate a source quality of an image signal received from an external settop box or a network; an image quality setter configured to set an image quality of the image signal based on the calculated source quality; and an image quality processor configured to perform image quality processing on the image signal based on the set image quality, wherein in response to the source quality of the received image signal being changed at a first time point, the image quality setter changes an image quality setting sequentially from a first setting to a second setting; and based on the image quality setting, the image quality processor performs image quality processing. Accordingly, flicker may be reduced when an image quality is changed due to a change in the source quality of the received image signal.