公开(公告)号：US20240249688A1

公开(公告)日：2024-07-25

申请号：US18623131

申请日：2024-04-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HYUNHO LIM ,  MYEONGBIN LIM ,  HYUNHA YANG

IPC: G09G3/3275

CPC classification number: G09G3/3275 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2340/16

Abstract: A display device including: a display panel including a plurality of pixels; a data driver configured to provide data voltages to the plurality of pixels; and a controller configured to control the data driver, to detect a same data region of the display panel when first image data in a current frame period is the same as second image data in a previous frame period, and not to transfer the first image data to the data driver in the current frame period.

公开(公告)号：US20240169894A1

公开(公告)日：2024-05-23

申请号：US18236011

申请日：2023-08-21

Applicant: Samsung Display Co., LTD.

Inventor： BYUNG KI CHUN ,  SUN-KOO KANG ,  MYEONGBIN LIM ,  MIN-SEOK BAE ,  KANGHEE LEE

IPC: G09G3/32 ,  G09G3/3291

CPC classification number: G09G3/32 ,  G09G3/3291 ,  G09G2310/0275 ,  G09G2310/0291 ,  G09G2320/0276 ,  G09G2330/021 ,  G09G2330/028

Abstract: A data driving circuit includes: a reference voltage generator that receives a data control signal and generates a gamma reference voltage and a test reference voltage, a data driving unit that outputs a data signal for a pixel based on the gamma reference voltage, and an output circuit that outputs a test data voltage for a dummy pixel based on the test reference voltage.

公开(公告)号：US20230343296A1

公开(公告)日：2023-10-26

申请号：US18098922

申请日：2023-01-19

Applicant: Samsung Display Co., Ltd.

Inventor： SUN-KOO KANG ,  HYUNHA YANG ,  MYEONGBIN LIM

IPC: G09G3/3275 ,  G09G3/3233

CPC classification number: G09G3/3275 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2300/0819 ,  G09G2330/028 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2330/021

Abstract: A display device includes: a display panel, a data driver, and a scan driver. The data driver outputs data signals during a writing frame and outputs a bias voltage during a holding frame. The data driver includes a plurality of driving chips, and each of the driving chips includes: a gamma voltage generator, a data converter, a main output part for outputting corresponding data signals of the data signals during the writing frame, and a sub-output part for outputting the bias voltage during the holding frame. The gamma voltage generator of a selected driving chip among the plurality of driving chips is electrically connected to the sub-output parts disposed in the plurality of driving chips, respectively.

公开(公告)号：US20230081076A1

公开(公告)日：2023-03-16

申请号：US17862507

申请日：2022-07-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HYUNHO LIM ,  MYEONGBIN LIM ,  Hyunha YANG

IPC: G09G3/3291 ,  G09G3/3233

Abstract: A display device including: a display panel including a plurality of pixels; a data driver configured to provide data voltages to the plurality of pixels; and a controller configured to control the data driver, to detect a same data region of the display panel when first image data in a current frame period is the same as second image data in a previous frame period, and not to transfer the first image data to the data driver in the current frame period.