公开(公告)号：US11735122B2

公开(公告)日：2023-08-22

申请号：US17525172

申请日：2021-11-12

Applicant: LG Display Co., Ltd.

Inventor： Juwon Kim ,  Mookyoung Hong

IPC: G09G3/3275 ,  G09G3/3266

CPC classification number: G09G3/3275 ,  G09G3/3266 ,  G09G2300/0842 ,  G09G2310/0278 ,  G09G2310/08 ,  G09G2320/041

Abstract: Embodiments of the present disclosure relate to display devices, controllers, and display driving methods for compensating for a difference between respective charges of sub-pixels disposed in different locations in a high temperature condition, and preventing image quality caused by such a charge difference from being degraded.

公开(公告)号：US11087687B2

公开(公告)日：2021-08-10

申请号：US15685445

申请日：2017-08-24

Applicant: LG DISPLAY CO., LTD.

Inventor： Mookyoung Hong ,  Nari Kim

IPC: G09G3/3233 ,  G09G3/3241 ,  G09G3/3258

Abstract: A display device includes a display panel, a driver IC, and a control circuit. The control circuit includes operation circuitry to calculate the magnitude of a driving current flowing in a first pixel column in response to first voltage information from the driver IC, where the first voltage information corresponding to a voltage level of a first power supply line applied to a first pixel group of the display panel. The operation circuitry also calculates a compensation gain by comparing the magnitude of the driving current with preset current information. Further, the control circuit includes a compensator to receive a first data signal, generate a second data signal by applying the compensation gain to the first data signal, and transfer the second data signal to the driver IC. The display device and driving method may suppress image quality degradation by monitoring a high-potential voltage and correcting a data signal.

公开(公告)号：US12175901B2

公开(公告)日：2024-12-24

申请号：US18381489

申请日：2023-10-18

Applicant: LG Display Co., Ltd.

Inventor： Mookyoung Hong ,  Minho Cho

IPC: G09G3/00 ,  G09G3/20 ,  G09G3/3233

Abstract: A display device can include a display panel having a plurality of sub-pixels, a data driver configured to apply a data signal to the plurality of sub-pixels, a gate driver configured to apply a gate signal to the plurality of sub-pixels, a timing controller configured to output control signals to the data driver and the gate driver, and a power controller configured to detect a defect associated with the display panel, and generate and output a defect signal corresponding on a type of the detected defect. The timing controller stores defect-related information associated with the defect signal.

公开(公告)号：US11922888B2

公开(公告)日：2024-03-05

申请号：US17837194

申请日：2022-06-10

Applicant: LG DISPLAY CO., LTD.

Inventor： Mookyoung Hong

IPC: G09G3/3275 ,  G09G3/20 ,  G09G3/3233 ,  G09G3/3266

CPC classification number: G09G3/3275 ,  G09G3/2074 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0842 ,  G09G2310/027 ,  G09G2310/0286 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2320/041 ,  G09G2320/10 ,  G09G2330/021 ,  G09G2340/0435

Abstract: A display device includes a gamma driving power detection circuit for detecting the gamma driving power for driving the data driving circuit and may control digital image data supplied to the data driving circuit according to the gamma driving power measurement detected by the gamma driving power detection circuit, thereby reducing an increase in the temperature of the data driving circuit and enhancing image quality.

公开(公告)号：US11665939B2

公开(公告)日：2023-05-30

申请号：US17124131

申请日：2020-12-16

Applicant: LG Display Co., Ltd.

Inventor： Mookyoung Hong ,  Hyerim Kim ,  Juwon Kim

IPC: H01L27/32 ,  H05K1/18

CPC classification number: H01L27/3276 ,  H01L27/326 ,  H05K1/18 ,  H05K2201/04 ,  H05K2201/10128

Abstract: The present disclosure relates to a display device capable of preventing light-emitting elements in a display panel from being deteriorated. A power supply circuit includes a plurality of first power supply lines each of which extends in a first direction and a plurality of second power supply lines each of which extends in a second direction intersecting the first direction, in which the second power supply lines are electrically connected with the first power supply lines.