公开(公告)号：US11436985B2

公开(公告)日：2022-09-06

申请号：US17315449

申请日：2021-05-10

Applicant: Samsung Display Co., Ltd.

Inventor： Sehyuk Park ,  Hongsoo Kim ,  Jinyoung Roh ,  Hyojin Lee ,  Jaekeun Lim ,  Junheyung Jung

IPC: G09G3/3291 ,  G09G3/20

Abstract: A display apparatus includes a display panel including pixels, a gate driver applying a gate signal to a gate line, a data driver applying a data voltage to a data line and a driving controller determining a mode of an input image data to a moving image mode or a static image mode according to whether the input image data is a moving image or a static image, driving the display panel in a moving image driving frequency in the moving image mode and in a static image driving frequency in the static image mode, operating the gate driver in an alternate driving mode such that the gate driver scans a first group of the gate lines in a first duration and a second group of the gate lines in a second duration and inserting a compensation frame to scan all of the gate lines when an image transition is occurred in the static image mode.

公开(公告)号：US11170688B2

公开(公告)日：2021-11-09

申请号：US16027798

申请日：2018-07-05

Applicant: Samsung Display Co., Ltd.

Inventor： Hongsoo Kim ,  Sehyuk Park

IPC: G09G3/20 ,  G09G3/34 ,  G09G3/3208 ,  G09G3/3233

Abstract: A method of driving a display panel including a plurality of pixels, each of which outputs different color lights corresponding to voltage ranges to which a driving voltage applied thereto belongs, includes dividing one image frame into first through third sub-frames, outputting a first color image displayed by a first color by applying a first driving voltage belonging to a first voltage range to the pixels in the first sub-frame, outputting a second color image displayed by a second color by applying a second driving voltage belonging to a second voltage range to the pixels in the second sub-frame, and outputting a third color image displayed by a third color by applying a third driving voltage belonging to a third voltage range to the pixels in the third sub-frame.

公开(公告)号：US12165594B2

公开(公告)日：2024-12-10

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

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：US11715419B2

公开(公告)日：2023-08-01

申请号：US17244095

申请日：2021-04-29

Applicant: Samsung Display Co., Ltd.

Inventor： Sehyuk Park ,  Hongsoo Kim ,  Jinyoung Roh ,  Hyojin Lee ,  Jaekeun Lim

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3283 ,  G09G3/36

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3283 ,  G09G3/3677 ,  G09G2310/08 ,  G09G2320/0626 ,  G09G2330/021

Abstract: A display device includes a display panel which defines first and second display areas, and includes pixels connected to data lines and scan lines, respectively, a data driving circuit which drives the data lines, a scan driving circuit which drives the scan lines, and a driving controller which receives an image signal and a control signal, control the data and scan driving circuits according to an operation mode, and output clock signals. In a multi-frequency mode, the scan driving circuit includes a first scan driving circuit corresponding to the first display area and a second scan driving circuit corresponding to the second display area. The second scan driving circuit sequentially drives first scan lines among scan lines corresponding to the second display area during a first frame, and sequentially drives second scan lines among scan lines corresponding to the second display area during a second frame.

公开(公告)号：US11551603B2

公开(公告)日：2023-01-10

申请号：US17212392

申请日：2021-03-25

Applicant: Samsung Display Co., Ltd.

Inventor： Sehyuk Park ,  Hongsoo Kim ,  Jinyoung Roh ,  Hyojin Lee ,  Jaekeun Lim

IPC: G09G3/20

Abstract: A display apparatus includes a display panel, a data driver and a frequency controller. The display panel displays an image based on an input image data. The data driver outputs a data voltage to the display panel. The frequency controller determines a driving frequency of the display panel based on the input image data and a play speed setting.

公开(公告)号：US10068535B2

公开(公告)日：2018-09-04

申请号：US15050190

申请日：2016-02-22

Applicant: Samsung Display Co., Ltd.

Inventor： Jaehyun Cho ,  Hongsoo Kim ,  Bon-seog Gu ,  Sehyuk Park ,  Cheolwoo Park ,  Ahyoung Son

IPC: G09G3/36 ,  G09G3/34 ,  G09G3/20

Abstract: A display apparatus comprises a display panel comprising a plurality of dimming areas, a light source unit configured to supply light to the display panel, a timing controller configured to receive a control signal and input data and to generate a gate control signal, a data control signal, and a light source control signal, a display panel driving unit configured to drive the display panel based on the gate and data control signals, and a light source driving unit configured to drive the light source unit based on the light source control signal, wherein based on the input data, the timing controller is configured to determine a first color of at least any one dimming area among the dimming areas and a second color in a complementary color relationship to the first color and to supply information on the first and second colors to the light source driving unit.

公开(公告)号：US12165599B2

公开(公告)日：2024-12-10

申请号：US18407362

申请日：2024-01-08

Applicant: Samsung Display Co., Ltd.

Inventor： Sehyuk Park ,  Hongsoo Kim ,  Jinyoung Roh ,  Bonghyun You ,  Hyojin Lee ,  Jaekeun Lim

IPC: G09G3/3266 ,  G09G3/3275

Abstract: A display apparatus includes a display panel, a gate driver, a data driver, a driving controller and a power voltage generator. The display panel displays an image based on input image data. The gate driver outputs a gate signal to a gate line. The data driver outputs a data voltage to a data line. The driving controller drives display areas of the display panel in different driving frequencies. The power voltage generator outputs a data power voltage to the data driver. The driving controller outputs an output data enable signal including a writing period having an active signal and a holding period having an inactive signal for the respective display areas. The power voltage generator generates the data power voltage having a high power voltage level during the writing period and a low power voltage level in at least a portion of the holding period.

公开(公告)号：US11514855B2

公开(公告)日：2022-11-29

申请号：US17219729

申请日：2021-03-31

Applicant: Samsung Display Co., Ltd.

Inventor： Jaekeun Lim ,  Hongsoo Kim ,  Jinyoung Roh ,  Sehyuk Park ,  Hyojin Lee

IPC: G09G3/3258

Abstract: A display device includes a pixel, wherein the pixel includes a light emitting element, a first transistor connected to a first power line and the light emitting element and controlled by a voltage of a first node, a second transistor connected to a data line and the first transistor and controlled by an i-th scan signal, a third-first transistor connected to the first transistor and a second node and controlled by a first control signal, a third transistor connected to the second node and the first node and controlled by a second control signal, and a dummy transistor including a first electrode receiving a reference voltage, a second electrode connected to the second node, and a control electrode connected to an emission line.

公开(公告)号：US11468815B2

公开(公告)日：2022-10-11

申请号：US17548960

申请日：2021-12-13

Applicant: Samsung Display Co., Ltd.

Inventor： Sehyuk Park ,  Hongsoo Kim ,  Jaekeun Lim ,  Jinyoung Roh ,  Hyojin Lee

IPC: G09G3/20

Abstract: A display device includes a display panel including a first display region and a second display region surrounding the first display region, where a first pixel having a first size is disposed in the first display region, and a second pixel having a second size is disposed in the second display region, a gate driver which applies a gate signal to a gate line, a data driver which applies a data voltage to a data line, and a timing controller which controls the gate driver and the data driver. The gate line includes a first gate line connected to both the first pixel and the second pixel, and a second gate line connected only to the second pixel. The data line includes a first data line which does not transmit the data voltage to the second pixel connected to the second gate line, and a second data line which transmits the data voltage to the second pixel connected to the second gate line.

公开(公告)号：US10147363B2

公开(公告)日：2018-12-04

申请号：US15163620

申请日：2016-05-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hongsoo Kim ,  Geunjeong Park ,  Yunki Baek ,  Donggyu Lee ,  Jakyoung Jin

IPC: G09G3/34 ,  G09G3/36

Abstract: A timing controller includes: a temperature sensor to sense an ambient-3.6 temperature; a memory to store a liquid crystal response time corresponding to the temperature, and a gamma signal corresponding to the ambient temperature; a field number determinator to identify the liquid crystal response time corresponding to the ambient temperature from the memory, and to determine a number of fields corresponding to the liquid crystal response time; and a gamma converter to identify the gamma signal corresponding to the ambient temperature and the number of fields from the memory, and to convert an image signal into an image data signal corresponding to the gamma signal.