公开(公告)号：US20230119029A1

公开(公告)日：2023-04-20

申请号：US17947350

申请日：2022-09-19

Applicant: LG Display Co., Ltd.

Inventor： Seung Taek OH ,  Kyu Jin KIM ,  Bo Yun JUNG

IPC: G09G3/3291

Abstract: The present disclosure relates to a gamma voltage generating circuit and a display device including the same. The gamma voltage generating circuit may include: a first output terminal to output a first gamma voltage set as a black grayscale voltage; a second output terminal to output a second gamma voltage set as a higher grayscale voltage than the black grayscale voltage; a third output terminal to output a third gamma voltage set as a highest grayscale voltage of the first pixel area; and a fourth output terminal to output a fourth gamma voltage set as a highest grayscale voltage of the second pixel area.

公开(公告)号：US20240221581A1

公开(公告)日：2024-07-04

申请号：US18211081

申请日：2023-06-16

Applicant: LG Display Co., Ltd.

Inventor： Dong Gun LEE ,  Bo Gun SEO ,  Kyu Jin KIM ,  Seung Taek OH ,  Bo Yun JUNG

IPC: G09G3/20 ,  G09G3/3233

CPC classification number: G09G3/2074 ,  G09G3/2096 ,  G09G3/3233 ,  G09G2300/0452 ,  G09G2300/0842 ,  G09G2330/021

Abstract: Provided are a display device and a driving method thereof. The display device includes a display panel with a plurality of pixels, a power supply configured to apply a pixel driving voltage and a low-potential supply voltage to the plurality of pixels, and a timing controller configured to adjust the low-potential supply voltage when a maximum grayscale represented by pixel data to be applied to the plurality of pixels is equal to or less than a predetermined threshold.

公开(公告)号：US20230178033A1

公开(公告)日：2023-06-08

申请号：US17990185

申请日：2022-11-18

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyu Jin KIM ,  Bo Yun JUNG

IPC: G09G3/3291

CPC classification number: G09G3/3291 ,  G09G2310/027 ,  G09G2320/0276 ,  G09G2330/021

Abstract: The present disclosure relates to a data driving circuit and a display device including the same, and the data driving circuit includes a plurality of data input terminals to which pixel data of an input image is input, and a plurality of voltage input terminals to which gamma tab voltages for each color having different voltage levels, and common gamma tab voltages having different voltage levels are each input. When the input image includes pixel data having different grayscale values for each color, a data voltage of a corresponding color is changed when any one of the gamma tab voltages for each color is changed, and data voltages of all colors are changed when any one of the common gamma tab voltages is changed.

公开(公告)号：US20230178013A1

公开(公告)日：2023-06-08

申请号：US17990165

申请日：2022-11-18

Applicant: LG DISPLAY CO., LTD.

Inventor： Seung Taek OH ,  Dong Gun LEE ,  Bo Yun JUNG

IPC: G09G3/3208 ,  H04N5/225

CPC classification number: G09G3/3208 ,  H04N5/2257 ,  G09G2310/08 ,  G09G2310/0289 ,  G09G2310/0297 ,  G09G2320/0673 ,  G09G2320/0686 ,  G09G2330/021

Abstract: A display device includes a display panel including a plurality of pixels, and an image capturing unit disposed below the plurality of pixels, wherein, when the image capturing unit is driven, the display panel is time-divisionally driven by dividing one frame into a plurality of sub-frame sections, and the image capturing unit is synchronized with the display panel to receive different color data for each section of the plurality of sub-frame sections.

公开(公告)号：US20240212612A1

公开(公告)日：2024-06-27

申请号：US18382937

申请日：2023-10-23

Applicant: LG Display Co., Ltd.

Inventor： Bo Yun JUNG ,  Dong Gun LEE

IPC: G09G3/3233 ,  G09G3/20 ,  G11C19/28

CPC classification number: G09G3/3233 ,  G09G3/2096 ,  G11C19/287 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0213 ,  G09G2310/0286 ,  G09G2310/04 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2370/10

Abstract: A display panel and a display device including the same are discussed. The display panel includes a display area in which a plurality of data lines, a plurality of gate lines, and a plurality of sub-pixels are disposed, and a gate driver configured to supply gate signals to the gate lines. The display area includes a high-speed driving area, and a low-speed driving area driven at a frequency lower than that of the high-speed driving area. One cycle of a clock signal input to the gate driver includes a high interval with a gate high voltage and a low interval with a gate low voltage. A high interval of the clock signal is longer than a high interval of the high-speed driving area at a scanning time point of a first pixel line from which scanning of the low-speed driving area is started.

公开(公告)号：US20220122535A1

公开(公告)日：2022-04-21

申请号：US17474809

申请日：2021-09-14

Applicant: LG Display Co., Ltd.

Inventor： Bo Yun JUNG ,  Bo Gun SEO

IPC: G09G3/3233 ,  G09G3/3275 ,  H01L27/32

Abstract: The present disclosure relates to a display panel and a display device using the same, and includes a first region where pixels are disposed, and a second region where pixels having a lower pixel density (pixels per inch: PPI) compared to the first region are disposed. Each of the pixels of the first region includes a first pixel circuit. Each of the pixels of the second region includes a second pixel circuit. The second pixel circuit includes fewer transistors compared to the first pixel circuit.

公开(公告)号：US20250118265A1

公开(公告)日：2025-04-10

申请号：US18903565

申请日：2024-10-01

Applicant: LG DISPLAY CO., LTD.

Inventor： Dong Gun LEE ,  Bo Yun JUNG

IPC: G09G3/3258 ,  G09G3/20

Abstract: A display device including a display panel including data lines, gate lines, and pixels applied with pixel driving voltages; a data driver configured to supply pixel data to the data lines; a power supply configured to apply the pixel driving voltage to the pixels; and a compensation circuit configured to generate a pixel driving voltage drop amount using a pixel driving voltage applied from the power supply and a pixel driving voltage fed back from a central portion of the display panel, amplify the generated pixel driving voltage drop amount using a predetermined gain value, and generate a compensation voltage value for compensating a gamma reference voltage for a corresponding pixel using the amplified pixel driving voltage drop amount.

公开(公告)号：US20230137445A1

公开(公告)日：2023-05-04

申请号：US17883229

申请日：2022-08-08

Applicant: LG Display Co., Ltd.

Inventor： Tae Hun KIM ,  Bo Gun SEO ,  Guen Sik LEE ,  Kyu Jin KIM ,  Bo Yun JUNG

IPC: H01L51/52 ,  G02B5/32 ,  G02B5/18 ,  G06V40/16 ,  H04N5/225 ,  H04N5/232 ,  G09G3/3233 ,  H01L27/32

Abstract: A display device and a mobile terminal including the display device are discussed. The display device can include a display panel including a first pixel area and a second pixel area, a cover glass disposed on a first surface of the display panel in the second pixel area, an optical module disposed under a second surface of the display panel to face the second pixel area and configured to direct infrared light towards a light transmitting part of the second pixel area, and a diffractive optical element disposed on or in at least one of the cover glass and the display panel at a position corresponding to the light transmitting part of the second pixel area. The diffractive optical element can separate the infrared light from the optical module into a plurality of dot beams.

公开(公告)号：US20230133190A1

公开(公告)日：2023-05-04

申请号：US17974444

申请日：2022-10-26

Applicant: LG Display Co., Ltd.

Inventor： Seung Taek OH ,  Bo Yun JUNG ,  Bo Gun SEO

IPC: H04N5/225 ,  H04N5/232

Abstract: An embodiment discloses a display device including a display panel including a first display area and a second display area, a first image capturing assembly and a second image capturing assembly disposed below the second display area, and a rotating assembly configured to rotate the second image capturing assembly.