公开(公告)号：US20240005847A1

公开(公告)日：2024-01-04

申请号：US18127341

申请日：2023-03-28

Applicant: Samsung Display Co., Ltd.

Inventor： JIN-WOOK YANG ,  YU-CHOL KIM ,  SEHYUK PARK ,  DONGGYU LEE ,  JAE-HYEON JEON

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/08 ,  G09G2310/0275 ,  G09G2310/0267

Abstract: A display device includes: a pixel electrically connected to a data line, a write scan line, an initialization scan line, a compensation scan line, a transmission control line, and an emission control line; a first driving circuit configured to provide a write scan signal to the write scan line and a second driving circuit configured to receive a plurality of clock signals, each of which has a time duration of one unit horizontal period and provide an initialization scan signal, a compensation scan signal, a transmission control signal, and an emission control signal to the initialization scan line, the compensation scan line, the transmission control line, and the emission control line, respectively. Each of the initialization scan signal and the compensation scan signal has an activation interval of one unit horizontal periods or more.

公开(公告)号：US20230410742A1

公开(公告)日：2023-12-21

申请号：US18126650

申请日：2023-03-27

Applicant: Samsung Display Co., Ltd.

Inventor： DONGGYU LEE ,  JIN-WOOK YANG ,  JAE-HYEON JEON

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/0264 ,  G09G2310/08 ,  G09G2330/021

Abstract: A display device includes: a display panel and a panel driver for driving the display panel during a plurality of driving frames whose frequencies are varied. Among the driving frames, a first driving frame having a first frequency includes a first write period, and a second driving frame having a second frequency lower than the first frequency includes a second write period and a variable blank period. The panel driver includes a data driver and a driving controller. Each of the first and second write periods includes N horizontal periods (N is an integer number equal to or greater than 1), each of the N horizontal periods has a first duration, and each of the first and second write periods has a second duration corresponding to N times of the first duration. The driving controller applies a training synchronizing signal to the data driver during the variable blank period.

公开(公告)号：US20230086857A1

公开(公告)日：2023-03-23

申请号：US17861706

申请日：2022-07-11

Applicant: Samsung Display Co., Ltd.

Inventor： DONGGYU LEE ,  JAE-HYEON JEON ,  JIN-WOOK YANG

IPC: G09G3/20 ,  G09G3/3233

Abstract: A driving controller of a display device includes a memory that stores an input image signal in response to a control signal, a scan signal generator outputs an internal scan signal in response to the control signal, and a multiplexer outputs one of the input image signal and a storage image signal as an output image signal in response to the control signal and the internal scan signal. The storage image signal is provided from the memory, and the memory outputs the storage image signal in response to the internal scan signal.

公开(公告)号：US20210375192A1

公开(公告)日：2021-12-02

申请号：US17191588

申请日：2021-03-03

Applicant: Samsung Display Co., Ltd.

Inventor： JAE-HYEON JEON ,  YU-CHOL KIM ,  JIHYE KIM ,  JIN-WOOK YANG ,  DONGGYU LEE ,  JAKYOUNG JIN

IPC: G09G3/32

Abstract: A display device includes a display panel including a pixel, a voltage line supplying a power voltage to the pixel, and a reference voltage line supplying one of a reference voltage and the power voltage to the pixel; a mode selector configured to output one of a first selection signal and a second selection signal according to an operation mode of the display panel; and a switch configured to provide the reference voltage or the power voltage to the reference voltage line in response to one of the first selection signal and the second selection signal.