公开(公告)号：US20240153434A1

公开(公告)日：2024-05-09

申请号：US18239124

申请日：2023-08-29

Applicant: Samsung Display Co., Ltd.

Inventor： JIHYE KIM ,  YU-CHOL KIM ,  JIN-WOOK YANG ,  Seongoh YEOM ,  EUI-MYEONG CHO ,  JAKYOUNG JIN

IPC: G09G3/20

CPC classification number: G09G3/2096 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/0267 ,  G09G2320/0233

Abstract: Disclosed is a display device including a display panel including a pixel, a scan driver, and a driving controller that controls driving of the scan driver. The scan driver provides the pixel with a first mode scan signal having a first active period and a second active period in a first mode and provides the pixel with a second mode scan signal having a compensation active period in a second mode. The driving controller determines whether an operating frequency of the display device corresponds to one of predetermined compensation frequencies in a variable frequency mode, and operates the scan driver in the first mode or the second mode depending on a determination result of the determining.

公开(公告)号：US20240112622A1

公开(公告)日：2024-04-04

申请号：US18224452

申请日：2023-07-20

Applicant: Samsung Display Co., LTD.

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

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0216 ,  G09G2310/0267 ,  G09G2330/028

Abstract: A pixel includes: a light-emitting element including an anode and a cathode, a first transistor including a first and a second electrode and a gate electrode connected with a first node, a third transistor connected between the second electrode of the first transistor and the first node and including a gate electrode connected with a first scan line, a sixth transistor connected between the second electrode of the first transistor and the anode and including a gate electrode connected with a first emission line, and a seventh transistor connected between the anode and an initialization voltage line and including a gate electrode connected with a second scan line. During an initialization period, the third, sixth, and seventh transistors are turned on such that an initialization voltage from the initialization voltage line is transferred to the gate electrode of the first transistor.

公开(公告)号：US20240038169A1

公开(公告)日：2024-02-01

申请号：US18376760

申请日：2023-10-04

Applicant: Samsung Display Co., Ltd.

Inventor： JIHYE KIM ,  YU-CHOL KIM ,  Seongoh Yeom ,  JAKYOUNG JIN

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

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2320/0233 ,  G09G2300/0852 ,  G09G2300/0819 ,  G09G2320/043 ,  G09G2310/08

Abstract: A display device comprises a display panel including a pixel, and a panel driver configured to receive input image data in a variable frame frequency in order to drive the display panel based on the input image data. A frame period for the display panel is divided into at least one scan period and at least one or more hold periods, and a time during which the pixel performs an anode initialization operation in each of the hold periods is longer than a time during which the pixel performs the anode initialization operation in the scan period.

公开(公告)号：US20220084472A1

公开(公告)日：2022-03-17

申请号：US17471217

申请日：2021-09-10

Applicant: Samsung Display Co., Ltd.

Inventor： JIHYE KIM ,  JAKYOUNG JIN ,  YU-CHOL KIM ,  JIN-WOOK YANG

IPC: G09G3/3291 ,  G09G3/3266

Abstract: A pixel of an OLED display device includes a first capacitor, a second capacitor, a first transistor configured to generate a driving current, a second transistor configured to transfer a data voltage to a first node, a third transistor configured to diode-connect the first transistor, a fourth transistor configured to transfer an initialization voltage to the second node, a fifth transistor configured to transfer a reference voltage to the first node, a sixth transistor configured to couple a drain of the first transistor and an anode of an organic light emitting diode, a seventh transistor configured to transfer the initialization voltage to the anode of the organic light emitting diode, an eighth transistor configured to transfer the initialization voltage to the drain of the first transistor, and the organic light emitting diode.

公开(公告)号：US20240404464A1

公开(公告)日：2024-12-05

申请号：US18391894

申请日：2023-12-21

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G09G3/3233 ,  G09G3/20 ,  G09G3/3258

Abstract: A display device including: a display panel including a pixel; and a panel driver configured to provide a reference voltage and a data voltage to the pixel, wherein the pixel emits light with a luminance corresponding to a difference between the reference voltage and the data voltage, and when the reference voltage changes, and a range of the data voltage is shifted by a voltage level that corresponds to the amount of change in the reference voltage.

公开(公告)号：US20240296787A1

公开(公告)日：2024-09-05

申请号：US18661597

申请日：2024-05-11

Applicant: Samsung Display Co., LTD.

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

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0216 ,  G09G2310/0267 ,  G09G2330/028

Abstract: A pixel includes: a light-emitting element including an anode and a cathode, a first transistor including a first and a second electrode and a gate electrode connected with a first node, a third transistor connected between the second electrode of the first transistor and the first node and including a gate electrode connected with a first scan line, a sixth transistor connected between the second electrode of the first transistor and the anode and including a gate electrode connected with a first emission line, and a seventh transistor connected between the anode and an initialization voltage line and including a gate electrode connected with a second scan line. During an initialization period, the third, sixth, and seventh transistors are turned on such that an initialization voltage from the initialization voltage line is transferred to the gate electrode of the first transistor.

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：US20230215360A1

公开(公告)日：2023-07-06

申请号：US17985550

申请日：2022-11-11

Applicant: Samsung Display Co., Ltd.

Inventor： JIHYE KIM ,  YU-CHOL KIM ,  Seongoh Yeom ,  JAKYOUNG JIN

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

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2310/08 ,  G09G2300/0852 ,  G09G2300/0819 ,  G09G2320/043 ,  G09G2320/0233

Abstract: A display device comprises a display panel including a pixel, and a panel driver configured to receive input image data in a variable frame frequency in order to drive the display panel based on the input image data. A frame period for the display panel is divided into at least one scan period and at least one or more hold periods, and a time during which the pixel performs an anode initialization operation in each of the hold periods is longer than a time during which the pixel performs the anode initialization operation in the scan period.

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.

公开(公告)号：US20180137804A1

公开(公告)日：2018-05-17

申请号：US15806555

申请日：2017-11-08

Applicant: Samsung Display Co., Ltd.

Inventor： MIN-SOO CHOI ,  JUNPYO LEE ,  YU-CHOL KIM ,  JEONG-HYUN KIM

IPC: G09G3/20

Abstract: A display apparatus includes a gate driving control circuit, a gate driver and a display panel. The gate driving control circuit generates N gate clock signals and N inversion gate clock signals based on N gate clock control signals, phases of which partially overlap with each other. Each inversion gate clock signals has an opposite phase to a respective gate clock signal. The gate driver generates gate signals based on the N gate clock signals or the N inversion gate clock signals and applies the gate signals to gate lines. The display panel includes pixels, each connected to a respective gate line and a respective data line. Each of the pixels has a longer side in parallel with gate lines and a shorter side in parallel with the data lines. A number of the gate clock control signals is an integer multiple of a number of colors of the pixels.