公开(公告)号：US11587514B2

公开(公告)日：2023-02-21

申请号：US17583938

申请日：2022-01-25

Applicant: Samsung Display Co., Ltd.

Inventor： Jin Young Roh ,  Hong Soo Kim ,  Se Hyuk Park ,  Hyo Jin Lee ,  Jae Keun Lim

IPC: G09G3/3291 ,  G09G3/3266

Abstract: Embodiments of the present disclosure relate to a display device and a driving method thereof, and the display device includes a demultiplexer connected to a first data line and transferring a data signal from the first data line to a plurality of second data lines during a data writing period of one frame, a compensator calculating an on-pixel ratio (OPR) using input data in the one frame and generating compensation data corresponding to a calculated OPR, and a data driver supplying the data signal to the first data line using the input data during the data writing period, and supplying a compensation data signal to the first data line using the compensation data in a blank period of the one frame, and the demultiplexer supplies the compensation data signal from the first data line to a second data line during the blank period.

公开(公告)号：US11482157B2

公开(公告)日：2022-10-25

申请号：US17535331

申请日：2021-11-24

Applicant: Samsung Display Co., Ltd.

Inventor： Jae Keun Lim ,  Hong Soo Kim ,  Jin Young Roh ,  Se Hyuk Park ,  Hyo Jin Lee

IPC: G09G3/20

Abstract: Provided is a display device including a pixel unit in which each of pixel rows extends in a first direction, odd numbered pixel rows and even numbered pixel rows are alternately disposed in a second direction, and pixels included in the pixel rows are designated as dots having two or more units, a gray difference calculator that calculates difference between representative grays of dots adjacent in the second direction among dots of a p-th pair of the pixel rows, an edge detector that increases an edge dot number when a first condition in which the difference between the representative grays is larger than a first threshold value is satisfied, and a first pattern detector that increases an edge number when the edge dot number is larger than a second threshold value, and that generates a first pattern detection signal when the edge number is larger than a third threshold value.

公开(公告)号：US11195468B2

公开(公告)日：2021-12-07

申请号：US17014969

申请日：2020-09-08

Applicant: Samsung Display Co., Ltd.

Inventor： Se Hyuk Park ,  Hong Soo Kim ,  Jin Young Roh ,  Hyo Jin Lee ,  Jae Keun Lim

IPC: G09G3/36 ,  G09G3/3258 ,  G09G3/3291 ,  H01L27/32 ,  H01L29/786 ,  H01L27/12

Abstract: A display apparatus includes a display panel, a first gate driver, a second gate driver, a third gate driver, and a data driver. The display apparatus is operable in a low frequency driving mode, and the low frequency driving mode includes a writing frame and a holding frame. At least one of gate power voltages used to generate a first gate signal, a second gate signal, and an emission signal has a first voltage level in the writing frame of the low frequency driving mode and a second voltage level in the holding frame of the low frequency driving mode. The data voltage is applied to the pixel in the writing frame of the low frequency driving mode. The data voltage applied to the pixel in the writing frame of the low frequency driving mode is maintained in the holding frame of the low frequency driving mode.

公开(公告)号：US10996504B2

公开(公告)日：2021-05-04

申请号：US16031429

申请日：2018-07-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Se Hyuk Park ,  Hyo Jin Lee

IPC: G09G3/32 ,  G02F1/1335 ,  G02F1/13357 ,  F21V8/00 ,  H01L25/075

Abstract: A display device includes a first pixel including a first light emitting diode (“LED”) and a second LED having a color different from that of the first LED, a second pixel including a third LED having a same color as that of the first LED, a third pixel including a fourth LED having a same color as that of the first LED, and a color filter layer including a first color filter located on the first pixel, a second color filter that has a color different from a color of the first color filter and is located on the second pixel, and a third color filter that has a color different from the colors of the first and second color filters and is located on the third pixel.

公开(公告)号：US10083674B2

公开(公告)日：2018-09-25

申请号：US15251988

申请日：2016-08-30

Applicant: Samsung Display Co., Ltd.

Inventor： Bon Seog Gu ,  Jong Soo Kim ,  Se Hyuk Park ,  Myoung Seop Song ,  Myung Ho Lee

IPC: G09G5/10 ,  G09G3/3233 ,  G09G3/20 ,  G09G3/3283

CPC classification number: G09G5/10 ,  G09G3/2003 ,  G09G3/3233 ,  G09G3/3283 ,  G09G2300/0452 ,  G09G2300/0469 ,  G09G2300/0842 ,  G09G2310/0235 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2320/0693 ,  G09G2330/10

Abstract: A display device includes a plurality of front emission pixels each including a display panel including a plurality of front emission pixels each including a switching element, and a rear emission pixel, a sensor configured to sense whether the front emission pixels are degraded and to generate degradation information, and a controller configured to compensate for a degraded light source of a degraded front emission pixel of the front emission pixels according to the degradation information, and to control an ON/OFF state of the switching element of the degraded front emission pixel according to the degradation information.

公开(公告)号：US10026344B2

公开(公告)日：2018-07-17

申请号：US15202802

申请日：2016-07-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Bon Seog Gu ,  Jong Soo Kim ,  Se Hyuk Park ,  Woo Mi Bae ,  Myoung Seop Song ,  Myung Ho Lee

IPC: G09G3/30 ,  G09G3/00 ,  G09G3/3225 ,  G09G3/3291 ,  G09G3/3266 ,  H01L27/32 ,  H01L51/52 ,  G09G3/3233

Abstract: A display device includes a first pixel including a first light emitter, a second pixel including a second light emitter, and a holding capacitor connected to the first and second pixels. The holding capacitor stores first data for the first light emitter and stores second data for the second light emitter at different times. An irradiation direction of first light emitted by the first OLED is substantially equal to an irradiation direction of second light emitted by the second OLED. The first light from the first OLED is emitted in a first frame period and the second light from the second OLED is emitted in a second frame period to prevent mixing of the first and second light.