公开(公告)号：US20240013724A1

公开(公告)日：2024-01-11

申请号：US18196659

申请日：2023-05-12

Applicant: Samsung Display Co., LTD.

Inventor： DONGGYU LEE ,  HONGSOO KIM ,  SEHYUK PARK ,  YOUNGHA SOHN ,  JIN-WOOK YANG ,  JAE-HYEON JEON

IPC: G09G3/3258 ,  G09G3/3233

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2330/028 ,  G09G2310/08 ,  G09G2310/0264 ,  G09G2320/0247 ,  G09G2330/021 ,  G09G2300/0852

Abstract: An electronic device includes a display panel which includes a plurality of pixels and displays an image at each of multiple frames, a driving circuit which drives the multiple frames at multiple operating frequencies, a voltage generator which provides a voltage to the display panel, and a drive controller. The drive controller includes a representative frequency calculator which calculates a representative frequency, based on operating frequencies of ‘n’ number of frames before one frame of the multiple frames, and a compensating signal calculator which outputs a compensating signal, based on the representative frequency and a count number in the one frame. The drive controller transmits the compensating signal to the voltage generator, the voltage includes a reference voltage, the voltage generator generates the reference voltage based on the compensating signal, and the voltage generator provides the reference voltage to each of the plurality of pixels.

公开(公告)号：US20220415254A1

公开(公告)日：2022-12-29

申请号：US17586054

申请日：2022-01-27

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/3233

Abstract: A pixel of a display device includes a light-emitting diode and a pixel circuit that provides a current corresponding to a data signal to the light-emitting diode in response to a plurality of scan signals and a light emission control signal. The light emission control signal includes a first section and a second section, the second section includes a light-emission-on section and a light-emission-off section, the light emission control signal has an active level in the light-emission-on section and has an inactive level in each of the first section and the light-emission-off section, and the light-emission-on section and the light-emission-off section of the light emission control signal may vary depending on a light emission ratio of a dimming mode.

公开(公告)号：US20240221628A1

公开(公告)日：2024-07-04

申请号：US18602714

申请日：2024-03-12

Applicant: Samsung Display Co., LTD.

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

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2330/021

Abstract: A display device includes: a display panel which displays an image corresponding to each of a plurality of frames, and a source driver which drives the display panel. The plurality of frames includes a first frame operating at a first operating frequency, and a second frame operating at a frequency higher than the first operating frequency. The first frame includes a write cycle section, a hold cycle section, and a blank section including a standby section. The source driver operates in a normal driving mode during the write cycle section and the hold cycle section, and operates in a low-power driving mode during the standby section.

公开(公告)号：US20240038143A1

公开(公告)日：2024-02-01

申请号：US18132242

申请日：2023-04-07

Applicant: Samsung Display Co., LTD.

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

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2330/021

Abstract: A display device includes: a display panel which displays an image corresponding to each of a plurality of frames, and a source driver which drives the display panel. The plurality of frames includes a first frame operating at a first operating frequency, and a second frame operating at a frequency higher than the first operating frequency. The first frame includes a write cycle section, a hold cycle section, and a blank section including a standby section. The source driver operates in a normal driving mode during the write cycle section and the hold cycle section, and operates in a low-power driving mode during the standby section.

公开(公告)号：US20230410723A1

公开(公告)日：2023-12-21

申请号：US18120627

申请日：2023-03-13

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2300/0819 ,  G09G2310/08 ,  G09G2330/028 ,  G09G2320/0626 ,  G09G2300/0426 ,  G09G2300/0861 ,  G09G2320/0233

Abstract: A display device includes a display panel including a pixel which receives a luminance control voltage, a driving controller which receives an input image signal and a control signal and provides an output image signal to the display panel, and a voltage generator which generates the luminance control voltage in response to a voltage control signal from the driving controller. The driving controller determines a current operating frequency based on the control signal, and outputs the voltage control signal based on a difference value between the current operating frequency and a previous operating frequency and an operating time of the previous operating frequency when the current operating frequency is different from the previous operating frequency, where the luminance control voltage is changed from a first voltage level to a second voltage level based on the voltage control signal.

公开(公告)号：US20230301149A1

公开(公告)日：2023-09-21

申请号：US18200646

申请日：2023-05-23

Applicant: Samsung Display Co., Ltd.

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

IPC: H10K59/131 ,  H10K59/121

CPC classification number: H10K59/131 ,  H10K59/1213 ,  H10K59/1216

Abstract: A display device includes a display panel including a plurality of pixels. At least one of the pixel includes a light emitting diode, a first transistor connected between a power line receiving a power source voltage and an anode of the light emitting diode, a second transistor connected between a data line and a first reference node, a first capacitor connected between the power line and the first reference node, a second capacitor connected between the first reference node and a second reference node, a third transistor connected between the first refence node and a reference voltage line receiving a reference voltage, a fourth transistor connected between an initialization voltage line receiving an initialization voltage and a drain of the first transistor, and a fifth transistor connected between the drain of the first transistor and the anode of the light emitting diode.

公开(公告)号：US20240212588A1

公开(公告)日：2024-06-27

申请号：US18597393

申请日：2024-03-06

Applicant: Samsung Display Co., LTD.

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

IPC: G09G3/32

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

Abstract: A pixel connected to a first scan line includes a light-emitting element including an anode and a cathode, a first transistor including a first electrode, a second electrode, and a gate electrode connected to a first node, a first capacitor connected between the first node and a second node, a second transistor connected between the second electrode of the first transistor and the first node including a gate electrode connected to the first scan line, a third transistor including a first electrode, a second electrode connected to the second node, and a gate electrode connected to the first scan line, and a fourth transistor including a first electrode connected to a first driving voltage line, a second electrode connected to the first electrode of the first transistor, and a gate electrode connected to the first scan line.

公开(公告)号：US20240078963A1

公开(公告)日：2024-03-07

申请号：US18196137

申请日：2023-05-11

Applicant: Samsung Display Co., LTD.

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

IPC: G09G3/32

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

Abstract: A pixel connected to a first scan line includes a light-emitting element including an anode and a cathode, a first transistor including a first electrode, a second electrode, and a gate electrode connected to a first node, a first capacitor connected between the first node and a second node, a second transistor connected between the second electrode of the first transistor and the first node including a gate electrode connected to the first scan line, a third transistor including a first electrode, a second electrode connected to the second node, and a gate electrode connected to the first scan line, and a fourth transistor including a first electrode connected to a first driving voltage line, a second electrode connected to the first electrode of the first transistor, and a gate electrode connected to the first scan line.

公开(公告)号：US20230401997A1

公开(公告)日：2023-12-14

申请号：US18118414

申请日：2023-03-07

Applicant: Samsung Display Co., Ltd.

Inventor： JAE-HYEON JEON ,  SEHYUK PARK ,  YOUNGHA SOHN ,  JIN-WOOK YANG ,  DONGGYU LEE

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0278 ,  G09G2320/0233

Abstract: A display device includes a display panel including a pixel and a driving controller to drive the display panel. The driving controller generates a compensating signal, when a first driving frequency of a first frame is determined as being higher than a second driving frequency of a second frame by comparing a first cycle count value of the first frame with a second cycle count value of the second frame subsequent to the first frame.

公开(公告)号：US20200152136A1

公开(公告)日：2020-05-14

申请号：US16677142

申请日：2019-11-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JAE-HYEON JEON

IPC: G09G3/3291 ,  G09F9/30

Abstract: A display device includes a display panel including a folding area and a non-folding area, a data driver configured to provide a data voltage to the display panel, a gate driver configured to provide a gate signal to the display panel, a folding area compensator configured to generate a compensation data that adjusts a luminance of the folding area based upon a count of the number of times the folding area has been folded and a current flowing through a pixel formed in the folding area, and a timing controller configured to generate a control signal that controls the data driver, the gate driver, and the folding area compensator.