公开(公告)号：US20240185752A1

公开(公告)日：2024-06-06

申请号：US18442589

申请日：2024-02-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： SEHYUK PARK ,  JINYOUNG ROH ,  WOOMI BAE ,  HAE-KWAN SEO ,  YOUNGHA SOHN ,  JIN-WOOK YANG

IPC: G09G3/20

CPC classification number: G09G3/2003 ,  G09G2300/0452 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2330/021

Abstract: A display device includes four pixel arrays, a data driver, and a demultiplexer. The data driver is electrically connected to first and second data output lines. The demultiplexer electrically connects first and second data lines to the first data output line and electrically connects third and fourth data lines to the second data output line. The first to fourth pixel arrays are adjacent to the first to fourth data lines, respectively. Each of the first to fourth pixel arrays includes first and second color pixels. The first color pixels in the second pixel array are connected to the second data line, the second color pixels in the second pixel array are connected to the third data line, the second color pixels in the third pixel array are connected to the third data line, and the first color pixels in the third pixel array are connected to the second data line.

公开(公告)号：US20230127526A1

公开(公告)日：2023-04-27

申请号：US17939018

申请日：2022-09-07

Applicant: Samsung Display Co., Ltd.

Inventor： SEHYUK PARK ,  JINYOUNG ROH ,  WOOMI BAE ,  HAE-KWAN SEO ,  YOUNGHA SOHN

IPC: G09G3/20

Abstract: A display apparatus includes a display panel and a display driver. The display panel has a first pixel structure. The display driver is configured to receive input image data including first data, and generate a driving signal for driving the display panel based on conversion data. The display driver includes a converter configured to convert the first data into the conversion data. The conversion data include conversion data in N rows and M columns. Each of (2K−1)-th column conversion data include first color conversion data representing a first color and second color conversion data representing a second color. Each of 2K-th column conversion data include third color conversion data representing a third color and fourth color conversion data representing the second color. N, M and K are positive integers.

公开(公告)号：US20220238076A1

公开(公告)日：2022-07-28

申请号：US17539555

申请日：2021-12-01

Applicant: Samsung Display Co., Ltd.

Inventor： WOOMI BAE ,  HAE-KWAN SEO ,  YOUNGHA SOHN ,  HYOJIN LEE ,  JAEKEUN LIM

IPC: G09G3/3291 ,  G09G3/3233 ,  G09G3/3266

Abstract: A display device includes a display panel that includes a first display area and a second display area, a data driving circuit which drives a plurality of data lines, a scan driving circuit which drives a plurality of scan lines, and a driving controller which controls the data driving circuit and the scan driving circuit such that the first display area is driven at a first driving frequency, and the second display area is driven at a second driving frequency lower than the first driving frequency during a multi-frequency mode, where the driving controller receives an image signal and provides to the data driving circuit an image data signal obtained by compensating for a gamma level of the image signal corresponding to the second display area during the multi-frequency mode.

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：US20220366828A1

公开(公告)日：2022-11-17

申请号：US17645081

申请日：2021-12-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： SEHYUK PARK ,  JINYOUNG ROH ,  WOOMI BAE ,  HAE-KWAN SEO ,  YOUNGHA SOHN ,  JIN-WOOK YANG

IPC: G09G3/20

Abstract: A display device includes four pixel arrays, a data driver, and a demultiplexer. The data driver is electrically connected to first and second data output lines. The demultiplexer electrically connects first and second data lines to the first data output line and electrically connects third and fourth data lines to the second data output line. The first to fourth pixel arrays are adjacent to the first to fourth data lines, respectively. Each of the first to fourth pixel arrays includes first and second color pixels. The first color pixels in the second pixel array are connected to the second data line, the second color pixels in the second pixel array are connected to the third data line, the second color pixels in the third pixel array are connected to the third data line, and the first color pixels in the third pixel array are connected to the second data line.

公开(公告)号：US20220351688A1

公开(公告)日：2022-11-03

申请号：US17866820

申请日：2022-07-18

Applicant: Samsung Display Co., Ltd.

Inventor： HAE-KWAN SEO ,  WOOMI BAE ,  YOUNGHA SOHN

IPC: G09G3/3266 ,  G09G3/00 ,  G09G3/3275

Abstract: A driving controller divides a display panel into first and second display areas according to an operation mode, outputs a start signal indicating a start of one frame and a masking signal for indicating a start of the second display area, sets a basic driving frequency to a normal frequency when the operation mode is a normal frequency mode, sets the basic driving frequency to a frequency lower than the normal frequency when the operation mode is a multi-frequency mode, and outputs the start signal and the masking signal. The first display area operates at a first driving frequency and the second display area operates at a second driving frequency, and the scan driving circuit sequentially drives scan lines in synchronization with the start signal, and stops, in response to the masking signal, driving of some of the scan lines corresponding to the second display area.

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：US20230154377A1

公开(公告)日：2023-05-18

申请号：US17814411

申请日：2022-07-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： SEHYUK PARK ,  HAE-KWAN SEO ,  YOUNGHA SOHN ,  JIN-WOOK YANG

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2310/0272

Abstract: A display device, which is a slidable display device, includes a display panel and a data driver. The display panel includes a first display area, a second display area that is in one of a taken-in position and a taken-out-of position of the display device, and a pad area located on one side of the first display area. The display panel includes pixels disposed in the first and second display areas, and is driven in a first mode in which an image is displayed in the first display area or a second mode in which an image is displayed in the first and second display areas. The data driver generates data voltages based on pixel data, outputs the data voltages to the pixels, and controls an order of the data voltages output in the second mode.

公开(公告)号：US20220139326A1

公开(公告)日：2022-05-05

申请号：US17511931

申请日：2021-10-27

Applicant: Samsung Display Co., Ltd.

Inventor： WOOMI BAE ,  HAE-KWAN SEO ,  YOUNGHA SOHN ,  SEUNGJAE LEE

IPC: G09G3/3266

Abstract: A display device includes a display panel which displays an image during a plurality of driving frames, a panel driver which drives the display panel, and a driving controller which controls a driving operation of the panel driver. The driving controller divides the display panel into a first display area and a second display area based on an image signal. Each of the plurality of driving frames includes a full frame in which the first display area and the second display area are driven, and a plurality of partial frames in which only the first display area is driven. A number of the plurality of partial frames included in each of the plurality of driving frames is changed.

公开(公告)号：US20210407430A1

公开(公告)日：2021-12-30

申请号：US17193127

申请日：2021-03-05

Applicant: Samsung Display Co., Ltd.

Inventor： HAE-KWAN SEO ,  WOOMI BAE ,  YOUNGHA SOHN

IPC: G09G3/3266 ,  G09G3/3275 ,  G09G3/00

Abstract: A driving controller divides a display panel into first and second display areas according to an operation mode, outputs a start signal indicating a start of one frame and a masking signal for indicating a start of the second display area, sets a basic driving frequency to a normal frequency when the operation mode is a normal frequency mode, sets the basic driving frequency to a frequency lower than the normal frequency when the operation mode is a multi-frequency mode, and outputs the start signal and the masking signal. The first display area operates at a first driving frequency and the second display area operates at a second driving frequency, and the scan driving circuit sequentially drives scan lines in synchronization with the start signal, and stops, in response to the masking signal, driving of some of the scan lines corresponding to the second display area.