公开(公告)号：US12236874B2

公开(公告)日：2025-02-25

申请号：US18347168

申请日：2023-07-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sehyuk Park ,  Youngha Sohn ,  Jin-Wook Yang ,  Donggyu Lee ,  Jae-Hyeon Jeon

IPC: G09G3/3233

Abstract: A display apparatus includes a display panel, a gate driver, a data driver and an emission driver. The display panel includes a pixel. The gate driver is configured to output a gate signal to the pixel. The data driver is configured to output a data voltage to the pixel. The emission driver is configured to output an emission signal to the pixel. The pixel includes a light emitting element, a driving switching element configured to apply a driving current to the light emitting element and a bias switching element configured to apply a bias voltage to the driving switching element. The display apparatus increases a level of the bias voltage when a duration of a light emission time of the pixel is increased.

公开(公告)号：US11961463B2

公开(公告)日：2024-04-16

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：US11955066B2

公开(公告)日：2024-04-09

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：US11482174B2

公开(公告)日：2022-10-25

申请号：US16903295

申请日：2020-06-16

Applicant: Samsung Display Co., Ltd.

Inventor： Yu-Chol Kim ,  Jin-Wook Yang ,  Ji Hye Kim ,  Young Ha Sohn ,  Jae-Hyeon Jeon

IPC: G09G3/325 ,  G09G3/3266 ,  G09G3/3291

Abstract: An embodiment provides a display device including: a light emitting diode; a driving transistor configured to supply a current to the light emitting diode; a switching transistor having an input electrode connected to a data line; and a voltage transmitting capacitor disposed between an output electrode of the switching transistor and a gate electrode of the driving transistor, wherein a data voltage applied to the data line may be transmitted to the gate electrode of the driving transistor through the voltage transmitting capacitor, and the data voltage may have a data voltage value from which a voltage variation variable is removed based on leakage of the switching transistor.

公开(公告)号：US11295662B2

公开(公告)日：2022-04-05

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: G09G3/3233 ,  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：US12087208B2

公开(公告)日：2024-09-10

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

CPC classification number: G09G3/2096 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0297 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0626

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：US12008952B2

公开(公告)日：2024-06-11

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：US11640810B2

公开(公告)日：2023-05-02

申请号：US17142585

申请日：2021-01-06

Applicant: Samsung Display Co., Ltd.

Inventor： Ji Hye Kim ,  Young Ha Sohn ,  Jin-Wook Yang ,  Dong Gyu Lee ,  Jae-Hyeon Jeon

IPC: H01L27/32 ,  G09G3/20 ,  G09G5/14 ,  G09G5/02 ,  H04N5/225 ,  G06V40/16

Abstract: A display apparatus includes an optical module, a display panel and a display panel driver. The display panel is disposed on the optical module. The display panel driver is configured to drive the display panel. The display panel includes a first display area including at least a portion overlapping with the optical module and a second display area not overlapping with the optical module in a plan view. The first display area includes pixels having a first pixel structure. The second display area includes pixels having a second pixel structure different from the first pixel structure.

公开(公告)号：US10861397B2

公开(公告)日：2020-12-08

申请号：US16717795

申请日：2019-12-17

Applicant: Samsung Display Co., Ltd.

Inventor： Jae-Hyeon Jeon ,  Jihye Kim

IPC: G09G3/3266 ,  G09G3/3275

Abstract: An OLED display device includes a display panel including first and second partial panel regions, a scan driver configured to sequentially apply scan signals to the first and second partial panel regions in a normal driving mode, and to sequentially apply the scan signals to a driven one of the first and second partial panel regions in a partial driving mode, and a data driver configured to apply data signals to the first and second partial panel regions in the normal driving mode, and to apply the data signals to the driven one of the first and second partial panel regions in the partial driving mode. In the partial driving mode, the scan driver is configured to sequentially apply diode initialization signals to the driven one of the first and second partial panel regions, and to concurrently apply the diode initialization signals to a non-driven one of the first and second partial panel regions.

公开(公告)号：US20200335037A1

公开(公告)日：2020-10-22

申请号：US16740022

申请日：2020-01-10

Applicant: SAMSUNG DISPLAY CO,, LTD.

Inventor： WONTAE KIM ,  Jihye Kim ,  Jae-Hyeon Jeon

IPC: G09G3/3225 ,  G09G3/3275 ,  G09G3/3266

Abstract: A pixel driver includes a plurality of stages. Each of the plurality of stages includes a pixel driving signal generator configured to generate a pixel driving signal, a shift register configured to receive image data and the pixel driving signal and to generate an output control signal for determining whether to output the pixel driving signal based on the image data and the pixel driving signal, and a selection circuit configured to selectively output the pixel driving signal in response to the output control signal.