公开(公告)号：US11688335B2

公开(公告)日：2023-06-27

申请号：US17684695

申请日：2022-03-02

Applicant: Samsung Display Co., Ltd.

Inventor： Hyeonuk Won ,  Dohyun Kang ,  Jungkook Park ,  Donghak Pyo

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/027 ,  G09G2310/0243 ,  G09G2320/0285 ,  G09G2358/00

Abstract: A display apparatus is disclosed. The display apparatus includes a display panel including first pixels and second pixels, and a display panel driver which drives the display panel. In a first mode, the display panel driver drives both the first pixels and the second pixels. In a second mode, the display panel driver drives the second pixels in a first part for one frame, and drives the first pixels in a second part for the one frame.

公开(公告)号：US20230316979A1

公开(公告)日：2023-10-05

申请号：US18156536

申请日：2023-01-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： MOONSANG HWANG ,  Donghak Pyo

IPC: G09G3/20 ,  G09G3/3233

CPC classification number: G09G3/2007 ,  G09G3/3233 ,  G09G2320/0276 ,  G09G2360/16 ,  G09G2320/0693 ,  G09G2330/12

Abstract: The gamma correction method for a display device measures a first driving current according to a first grayscale voltage corresponding to the low grayscale value, determines a predicted luminance based on a driving current-luminance calibration function and the first driving current, compares the predicted luminance and a first target luminance for the low grayscale value, determines a first offset value based on the first driving current and the first target luminance when the predicted luminance is different from the first target luminance, and corrects the first grayscale voltage based on the first offset value. That is, the gamma correction method may measure the driving current to perform gamma correction for the low grayscale value, and shorten a process time of the gamma correction compared to performing the gamma correction for the low grayscale value by measuring luminance.

公开(公告)号：US12183264B2

公开(公告)日：2024-12-31

申请号：US18203926

申请日：2023-05-31

Applicant: Samsung Display Co., Ltd.

Inventor： Hyeonuk Won ,  Dohyun Kang ,  Jungkook Park ,  Donghak Pyo

IPC: G09G3/32

Abstract: A display apparatus is disclosed. The display apparatus includes a display panel including first pixels and second pixels, and a display panel driver which drives the display panel. In a first mode, the display panel driver drives both the first pixels and the second pixels. In a second mode, the display panel driver drives the second pixels in a first part for one frame, and drives the first pixels in a second part for the one frame.

公开(公告)号：US12020623B2

公开(公告)日：2024-06-25

申请号：US18156536

申请日：2023-01-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Moonsang Hwang ,  Donghak Pyo

IPC: G09G3/20 ,  G09G3/3233

CPC classification number: G09G3/2007 ,  G09G3/3233 ,  G09G2320/0276 ,  G09G2320/0693 ,  G09G2330/12 ,  G09G2360/16

Abstract: The gamma correction method for a display device measures a first driving current according to a first grayscale voltage corresponding to the low grayscale value, determines a predicted luminance based on a driving current-luminance calibration function and the first driving current, compares the predicted luminance and a first target luminance for the low grayscale value, determines a first offset value based on the first driving current and the first target luminance when the predicted luminance is different from the first target luminance, and corrects the first grayscale voltage based on the first offset value. That is, the gamma correction method may measure the driving current to perform gamma correction for the low grayscale value, and shorten a process time of the gamma correction compared to performing the gamma correction for the low grayscale value by measuring luminance.

公开(公告)号：US20240321156A1

公开(公告)日：2024-09-26

申请号：US18427738

申请日：2024-01-30

Applicant: Samsung Display Co., Ltd.

Inventor： Kwanghyun Baek ,  Jungkook Park ,  Donghak Pyo ,  Moonsang Hwang

IPC: G09G3/00 ,  G09G3/3233 ,  H10K59/131

CPC classification number: G09G3/006 ,  G09G3/3233 ,  H10K59/131 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2330/12

Abstract: A display panel includes a substrate including a display area, and a peripheral area surrounding the display area in plan view, a pixel circuit in the display area, a light-emitting diode in the display area, electrically connected to the pixel circuit, and including a pixel electrode, an opposite electrode, and an emission layer between the pixel electrode and the opposite electrode, a test circuit in the peripheral area, and a pseudo-diode in the peripheral area, electrically connected to the test circuit, and including a first transistor.

公开(公告)号：US12086353B2

公开(公告)日：2024-09-10

申请号：US18188327

申请日：2023-03-22

Applicant: Samsung Display Co., Ltd.

Inventor： Donghak Pyo ,  Jungkook Park

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04164 ,  G06F3/0412 ,  G06F3/0446

Abstract: A display device includes a display panel and an input sensing unit on the display panel, the input sensing unit includes sensing pads, sensing electrodes overlapping the display area and arranged in rows and columns, and sensing wirings connecting the sensing pads and the sensing electrodes, the sensing wirings include first trace wirings and second trace wirings on different layers, the sensing electrodes include a first row sensing electrode and a second row sensing electrode, and a third row sensing electrode and a fourth row sensing electrode, the first trace wirings are connected to each of the first row sensing electrode and the second row sensing electrode, and the second trace wirings are connected to each of the third row sensing electrode and the fourth row sensing electrode.

公开(公告)号：US11538415B2

公开(公告)日：2022-12-27

申请号：US17256500

申请日：2019-04-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Byunghyuk Shin ,  Soyoung Kim ,  Donghak Pyo

IPC: G09G3/3266 ,  G09G3/3258 ,  G09G3/3291 ,  H01L27/32 ,  H01L27/12 ,  H01L29/786

Abstract: A clock and voltage generation circuit includes a voltage generator which generates a first gate high voltage, a first gate low voltage, a second gate high voltage, and a second gate low voltage, a first level shifter which generates a first gate clock signal which swings between the first gate high voltage and the first gate low voltage in synchronization with a gate pulse signal, and a second level shifter which generates a second gate clock signal which swings between the second gate high voltage and the second gate low voltage in synchronization with the gate pulse signal. The voltage generator lowers the second gate high voltage to a voltage level of a kickback reference voltage in response to a kickback signal, and the first gate low voltage and the second gate high voltage are gate-on voltages, and the first gate high voltage and the second gate low voltage are gate-off voltages.