公开(公告)号：US12002413B2

公开(公告)日：2024-06-04

申请号：US18176910

申请日：2023-03-01

Applicant: Samsung Display Co., LTD.

Inventor： Hong Soo Kim ,  Myung Woo Lee ,  Suk Hun Lee

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2320/0633 ,  G09G2330/028

Abstract: A display device comprises a pixel configured to be driven in cycle periods during a frame period defined by a vertical start signal, and a display driver configured to divide a cycle period into subfields for driving, configured to control an amount of current flowing through the pixel and to control emission on-duties of the subfields, and configured to independently determine, for the cycle period, a reference duty that is a minimum emission on-duty set in the cycle period based on a dimming signal.

公开(公告)号：US11551599B2

公开(公告)日：2023-01-10

申请号：US17342589

申请日：2021-06-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Bit Na Lee ,  Jeong Kyoo Kim ,  Myung Woo Lee

IPC: G09G3/20 ,  G09G3/3275 ,  G09G5/06

Abstract: A display device includes a display area including a first pixel area, in which pixels including subpixels of a first arrangement structure are disposed, and a second pixel area, in which pixels including subpixels of a second arrangement structure are disposed, a panel driver which provides a driving signal to the display area, and a data processor which converts first image data to second image data, where the first image data corresponds to the boundary subpixel of a first boundary pixel located adjacent to the second pixel area, among the pixels of the first pixel area, and the boundary subpixel of a second boundary pixel adjacent to the first boundary pixel, among the pixels of the second pixel area. The data processor determines the boundary subpixels of the first and second boundary pixels based on boundary types indicating positional relationships between the first and second boundary pixels.

公开(公告)号：US10115331B2

公开(公告)日：2018-10-30

申请号：US15140402

申请日：2016-04-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Myung Woo Lee

IPC: G09G3/20 ,  G09G3/3208

Abstract: A method for processing image data according to an exemplary embodiment of the present invention includes detecting a gray level distribution of frame image data, calculating a cluster size of each of gray levels based on the gray level distribution, determining a remapping function for increasing contrast of the frame image data based on the gray level distribution and the cluster size, and converting the frame image data based on the remapping function.

公开(公告)号：US20170116903A1

公开(公告)日：2017-04-27

申请号：US15140402

申请日：2016-04-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Myung Woo Lee

IPC: G09G3/20 ,  G09G3/3208

CPC classification number: G09G3/2007 ,  G09G3/3208 ,  G09G2320/0271 ,  G09G2320/029 ,  G09G2320/066 ,  G09G2330/021 ,  G09G2360/16

Abstract: A method for processing image data according to an exemplary embodiment of the present invention includes detecting a gray level distribution of frame image data, calculating a cluster size of each of gray levels based on the gray level distribution, determining a remapping function for increasing contrast of the frame image data based on the gray level distribution and the cluster size, and converting the frame image data based on the remapping function.

公开(公告)号：US09330607B2

公开(公告)日：2016-05-03

申请号：US13840916

申请日：2013-03-15

Applicant: Samsung Display Co., Ltd.

Inventor： Myung Woo Lee ,  Soon Dong Kim ,  Ji Eun Park

IPC: G09G5/10 ,  G09G3/34 ,  G09G3/32

CPC classification number: G09G3/3406 ,  G09G3/3225 ,  G09G2320/0252 ,  G09G2320/0276

Abstract: A display device is disclosed. In one embodiment, the display device includes a first conversion unit receiving gray data and outputting a gray data value of a second gamma curve, which has a luminance equal to a luminance of the gray data on a first gamma curve. The device may also include a memory storing a look-up table (LUT) which includes first and second data groups and compensated gray data for the second gamma curve. The device may further include a reference unit generating the compensated gray data based on the two converted gray data. Coordinates formed of i) each value in the first data group and ii) each value in the second data group may correspond to any one of the compensated gray data.

Abstract translation: 公开了一种显示装置。 在一个实施例中，显示设备包括接收灰度数据并输出第二伽马曲线的灰度数据值的第一转换单元，其具有等于第一伽马曲线上灰度数据的亮度的亮度。 该设备还可以包括存储存储表（LUT）的存储器，其包括用于第二伽马曲线的第一和第二数据组和补偿灰度数据。 该装置还可以包括基于两个转换的灰度数据产生补偿的灰度数据的参考单元。 由i）第一数据组中的每个值形成的坐标和ii）第二数据组中的每个值可以对应于补偿的灰度数据中的任何一个。

公开(公告)号：US11900849B2

公开(公告)日：2024-02-13

申请号：US18151655

申请日：2023-01-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Bit Na Lee ,  Jeong Kyoo Kim ,  Myung Woo Lee

IPC: G09G3/20 ,  G09G3/3275 ,  G09G5/06

CPC classification number: G09G3/2003 ,  G09G3/3275 ,  G09G5/06 ,  G09G2300/0452 ,  G09G2300/0465 ,  G09G2310/027 ,  G09G2310/0232

Abstract: A display device includes a display area including a first pixel area, in which pixels including subpixels of a first arrangement structure are disposed, and a second pixel area, in which pixels including subpixels of a second arrangement structure are disposed, a panel driver which provides a driving signal to the display area, and a data processor which converts first image data to second image data, where the first image data corresponds to the boundary subpixel of a first boundary pixel located adjacent to the second pixel area, among the pixels of the first pixel area, and the boundary subpixel of a second boundary pixel adjacent to the first boundary pixel, among the pixels of the second pixel area. The data processor determines the boundary subpixels of the first and second boundary pixels based on boundary types indicating positional relationships between the first and second boundary pixels.

公开(公告)号：US11189219B2

公开(公告)日：2021-11-30

申请号：US17064564

申请日：2020-10-06

Applicant: Samsung Display Co., Ltd.

Inventor： Geun Jeong Park ,  Jeong Kyoo Kim ,  Chae Hee Park ,  Myung Woo Lee ,  Bit Na Lee ,  Man Seung Cho

IPC: G09G3/32

Abstract: A display device includes a pixel unit including first pixels connected to a data line and second pixels connected to the data line; a sensing unit overlapping the first and second pixels, the sensing unit including sensing electrodes; and a sensing controller for receiving a sensing signal from at least some of the sensing electrodes in accordance with a sensing enable signal having a sensing-on level. In a first frame period, at least two of first data voltages having different levels are applied through the data line to the first pixels and second data voltages having the same level as each other but different from the first data voltages are applied through the data line to the second pixels. In the first frame period, the sensing enable signal has a sensing-off level while the first data voltages are applied and the sensing-on level while the second data voltages are applied.

公开(公告)号：US20130241970A1

公开(公告)日：2013-09-19

申请号：US13840916

申请日：2013-03-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Myung Woo Lee ,  Soon Dong Kim ,  Ji Eun Park

IPC: G09G3/34

CPC classification number: G09G3/3406 ,  G09G3/3225 ,  G09G2320/0252 ,  G09G2320/0276

Abstract: A display device is disclosed. In one embodiment, the display device includes a first conversion unit receiving gray data and outputting a gray data value of a second gamma curve, which has a luminance equal to a luminance of the gray data on a first gamma curve. The device may also include a memory storing a look-up table (LUT) which includes first and second data groups and compensated gray data for the second gamma curve. The device may further include a reference unit generating the compensated gray data based on the two converted gray data. Coordinates formed of i) each value in the first data group and ii) each value in the second data group may correspond to any one of the compensated gray data.

Abstract translation: 公开了一种显示装置。 在一个实施例中，显示设备包括接收灰度数据并输出第二伽马曲线的灰度数据值的第一转换单元，其具有等于第一伽马曲线上灰度数据的亮度的亮度。 该设备还可以包括存储存储表（LUT）的存储器，其包括用于第二伽马曲线的第一和第二数据组和补偿灰度数据。 该装置还可以包括基于两个转换的灰度数据产生补偿的灰度数据的参考单元。 由i）第一数据组中的每个值形成的坐标和ii）第二数据组中的每个值可以对应于补偿的灰度数据中的任何一个。