公开(公告)号：US20240312413A1

公开(公告)日：2024-09-19

申请号：US18673661

申请日：2024-05-24

Applicant: Samsung Display Co., Ltd.

Inventor： Bon Seog GU ,  Hae Kwan SEO ,  Jin Young ROH ,  Jae Keun LIM

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0294 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2340/0435

Abstract: A display device is disclosed that includes a pixel component configured to output an image based on a first driving frequency, a scan driver configured to sequentially provide a scan signal to each pixel row in each frame based on the first driving frequency, and a driving controller configured control the scan driver such that, in the case where image data includes data corresponding to a static image, a display area is divided into a first area for the static image, and a second area for a video, and the first area is driven at a second driving frequency, and the second area is driven at a third driving frequency. The driving controller may control the scan driver such that a driving frequency corresponding to the first area is reduced to the second driving frequency, and a driving frequency corresponding to the second area is increased to the third driving frequency.

公开(公告)号：US20240144875A1

公开(公告)日：2024-05-02

申请号：US18139955

申请日：2023-04-27

Applicant: Samsung Display Co., Ltd.

Inventor： Bon Seog GU ,  Hae Kwan SEO ,  Jin Young ROH ,  Jae Keun LIM

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0294 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2340/0435

Abstract: A display device is disclosed that includes a pixel component configured to output an image based on a first driving frequency, a scan driver configured to sequentially provide a scan signal to each pixel row in each frame based on the first driving frequency, and a driving controller configured control the scan driver such that, in the case where image data includes data corresponding to a static image, a display area is divided into a first area for the static image, and a second area for a video, and the first area is driven at a second driving frequency, and the second area is driven at a third driving frequency. The driving controller may control the scan driver such that a driving frequency corresponding to the first area is reduced to the second driving frequency, and a driving frequency corresponding to the second area is increased to the third driving frequency.

公开(公告)号：US20220139305A1

公开(公告)日：2022-05-05

申请号：US17576768

申请日：2022-01-14

Applicant: Samsung Display Co., Ltd.

Inventor： Chang Noh YOON ,  Hae Kwan SEO ,  Won Tae KIM

IPC: G09G3/32

Abstract: A display device includes a timing controller configured to generate clock signals, a start signal, and image data. A scan driver includes a plurality of stages configured to sequentially output the clock signals as scan signals in response to the start signal. A data driver configured to generate a data signal based on the image data. A display unit includes pixels configured to emit light with luminance corresponding to the data signal in response to the scan signal. The timing controller is to mask at least one of the clock signals in a first section, a second section, and a third section included in one frame section and spaced from each other.

公开(公告)号：US20220415258A1

公开(公告)日：2022-12-29

申请号：US17840543

申请日：2022-06-14

Applicant: Samsung Display Co., LTD.

Inventor： Se Hyuk PARK ,  Jin Young ROH ,  Woo Mi BAE ,  Hae Kwan SEO ,  Young Ha SOHN ,  Jin Wook YANG

IPC: G09G3/3241 ,  G09G3/20

Abstract: A display device includes: a data driver for supplying a data signal to each of a plurality of data lines; and a pixel unit including a plurality of sub-pixels. The pixel unit further includes one dummy data line disposed separate from a data line of a first column among the data lines. The data line of the first column is connected to sub-pixels disposed on odd-numbered pixel rows among sub-pixels disposed on a first pixel column, and is connected to sub-pixels disposed on even-numbered pixel rows among sub-pixels disposed on a third pixel column. The dummy data line is connected to sub-pixels disposed on the even-numbered pixel rows among the sub-pixels disposed on the first pixel column.

公开(公告)号：US20220068727A1

公开(公告)日：2022-03-03

申请号：US17342108

申请日：2021-06-08

Applicant: Samsung Display Co., LTD.

Inventor： Hae Kwan SEO ,  Young Ha SOHN ,  Woo Mi BAE

IPC: H01L21/66 ,  H01L25/16 ,  G01R31/28

Abstract: A method of testing a display panel includes applying a test voltage to each of data lines; applying a gate signal to each of the gate lines; measuring a sensing voltage applied to end of the light emitting unit of each of the pixels by the pixel circuit in response to the gate signal and the test voltage; and determining whether the light emitting elements are validly connected in series within the light emitting unit of each of the pixels based on the sensing voltage.

公开(公告)号：US20210035488A1

公开(公告)日：2021-02-04

申请号：US16854316

申请日：2020-04-21

Applicant: Samsung Display Co., Ltd.

Inventor： Hae Kwan SEO ,  Jun Heyung JUNG

IPC: G09G3/20

Abstract: A display device includes: a pixel unit including a plurality of pixels connected to a plurality of scan lines and a plurality of data lines; a multi-frequency driver configured to compare image data between adjacent frames to determine a first area of the pixel unit driven at a first refresh rate and a second area of the pixel unit driven at a second refresh rate lower than the first refresh rate; a scan driver configured to sequentially supply scan signals to the scan lines in a first direction, to supply first scan signals of the scan signals to the first area at the first refresh rate, and to supply second scan signals of the scan signals to the second area at the second refresh rate; and a data driver configured to supply a data signal corresponding to the image data to the data lines.

公开(公告)号：US20210027719A1

公开(公告)日：2021-01-28

申请号：US16817403

申请日：2020-03-12

Applicant: Samsung Display Co., Ltd.

Inventor： Seong Heon CHO ,  Hae Kwan SEO ,  Seung Jae LEE

IPC: G09G3/3291 ,  G09G3/3258

Abstract: A display device and a driving method thereof are provided. The display device includes a display including a pixel including a double gate transistor and a light emitting diode, a power supply for supplying power to the display, a current sensor for sensing a current flowing in the display or in the light emitting diode, and a gate voltage controller for providing a bias voltage signal to one gate electrode of the double gate transistor.

公开(公告)号：US20240257727A1

公开(公告)日：2024-08-01

申请号：US18609900

申请日：2024-03-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hae Kwan SEO ,  Bon Seog GU ,  Jin Young ROH ,  Jae Keun LIM

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/32 ,  G09G3/2096 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/0202 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2310/0297 ,  G09G2310/08

Abstract: A source driver includes a digital-to-analog converter that converts signals corresponding to first and second colors included in digital image data into first and second analog color data voltages, respectively, an output buffer unit including a first output buffer that alternately outputs the first color data voltage and the second color data voltage during one horizontal period, and a controller that controls the digital-to-analog converter and the first output buffer to alternately output the first color data voltage and the second color data voltage corresponding to each horizontal period for each horizontal period. The controller controls the first output buffer such that the second color data voltage is output after the first color data voltage is first output during a first horizontal period, and the first color data voltage is output after the second color data voltage is first output during a subsequent second horizontal period.

公开(公告)号：US20240105108A1

公开(公告)日：2024-03-28

申请号：US18303396

申请日：2023-04-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hae Kwan SEO ,  Bon Seog GU ,  Jin Young ROH ,  Jae Keun LIM

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/32 ,  G09G3/2096 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/0202 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2310/0297 ,  G09G2310/08

Abstract: A source driver includes a digital-to-analog converter that converts signals corresponding to first and second colors included in digital image data into first and second analog color data voltages, respectively, an output buffer unit including a first output buffer that alternately outputs the first color data voltage and the second color data voltage during one horizontal period, and a controller that controls the digital-to-analog converter and the first output buffer to alternately output the first color data voltage and the second color data voltage corresponding to each horizontal period for each horizontal period. The controller controls the first output buffer such that the second color data voltage is output after the first color data voltage is first output during a first horizontal period, and the first color data voltage is output after the second color data voltage is first output during a subsequent second horizontal period.

公开(公告)号：US20220392397A1

公开(公告)日：2022-12-08

申请号：US17819875

申请日：2022-08-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hae Kwan SEO ,  Won Tae KIM

IPC: G09G3/22 ,  G09G5/14

Abstract: A display device includes a display including scan lines, data lines, light emission control lines, and pixels connected thereto, a scan driver configured to sequentially provide scan signals to the scan lines, a data driver configured to provide data signals to the data lines, a light emitting driver configured to provide light emission control signals to the light emission control lines based on a light emission clock signal having pulses, and a timing controller configured to provide the light emission clock signal to the light emitting driver, to output the pulses of the light emission clock signal during a frame in a first mode, to mask at least one pulse of the pulses during a first period of the frame in a second mode, and to output at least another pulse of the pulses during a second period after the first period.