公开(公告)号：US11817029B2

公开(公告)日：2023-11-14

申请号：US17874232

申请日：2022-07-26

Applicant: Samsung Display Co., LTD.

Inventor： Kihyun Pyun ,  Heesook Park

IPC: G09G3/20

CPC classification number: G09G3/2007 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2320/0257 ,  G09G2320/0295 ,  G09G2320/046 ,  G09G2320/103 ,  G09G2330/022 ,  G09G2330/023 ,  G09G2360/16

Abstract: A screen saver controller including a load calculator configured to generate load data of an image represented by input image data, a maximum gray level calculator configured to generate maximum gray level data of the image represented by the input image data, and a screen saver data generator configured to determine a gain of a screen saver mode based on the load data and the maximum gray level data when the screen saver mode is operated and to generate screen saver data based on the input image data and the gain.

公开(公告)号：US11455932B2

公开(公告)日：2022-09-27

申请号：US17235161

申请日：2021-04-20

Applicant: Samsung Display Co., Ltd.

Inventor： Kihyun Pyun ,  Heesook Park

IPC: G09G3/20

Abstract: A driving controller includes an image analyzer, a grayscale setter and a time-and-space arranger. The image analyzer analyzes input image data to determine a peak luminance. The grayscale setter receives a gamma value and the peak luminance and to determine a boundary grayscale value and a minimum grayscale value. The time-and-space arranger is configured to temporally and spatially arrange first data having the boundary grayscale value and second data having the minimum grayscale value. The driving controller is configured to drive a display panel using the first data and the second data for a low grayscale range of which a grayscale is equal to or less than the boundary grayscale value and to drive the display panel based on a data signal corresponding to a grayscale value of the input image data for a normal grayscale range of which a grayscale is greater than the boundary grayscale value.

公开(公告)号：US11756472B2

公开(公告)日：2023-09-12

申请号：US17952627

申请日：2022-09-26

Applicant: Samsung Display Co., Ltd.

Inventor： Kihyun Pyun ,  Heesook Park

IPC: G09G3/20

CPC classification number: G09G3/2003 ,  G09G2310/027 ,  G09G2320/0626 ,  G09G2320/0673

Abstract: A driving controller includes an image analyzer, a grayscale setter and a time-and-space arranger. The image analyzer analyzes input image data to determine a peak luminance. The grayscale setter receives a gamma value and the peak luminance and to determine a boundary grayscale value and a minimum grayscale value. The time-and-space arranger is configured to temporally and spatially arrange first data having the boundary gray scale value and second data having the minimum grayscale value. The driving controller is configured to drive a display panel using the first data and the second data for a low grayscale range of which a grayscale is equal to or less than the boundary grayscale value and to drive the display panel based on a data signal corresponding to a grayscale value of the input image data for a normal grayscale range of which a grayscale is greater than the boundary grayscale value.

公开(公告)号：US20160240140A1

公开(公告)日：2016-08-18

申请号：US14857609

申请日：2015-09-17

Applicant: Samsung Display Co., Ltd.

Inventor： Gilbae Park ,  Heesook Park ,  Joonsuk Baik ,  Jihye Eom

IPC: G09G3/32

CPC classification number: G09G3/3258 ,  G09G3/3208 ,  G09G3/3666 ,  G09G2300/043 ,  G09G2320/0223 ,  G09G2360/16

Abstract: A voltage drop compensator for a display device and the display device including the same are disclosed. In one aspect, the voltage drop compensator includes a region divider, an expected current calculator, a conversion matrix generator, a representative voltage calculator, and a compensator. The region divider is configured to divide the display panel into a plurality of regions, and the display panel includes a plurality of power lines and a plurality of pixels configured to receive a power voltage via the power lines. The expected current calculator is configured to calculate an expected current to flow in each of the regions based on input data provided to each of the regions. The conversion matrix generator configured to generate a conversion matrix based on a line resistance of each of the power lines and convert the expected current to a representative voltage provided to the regions based on the conversion matrix.

Abstract translation: 公开了一种用于显示装置的电压降补偿器和包括它的显示装置。 一方面，电压降补偿器包括区域分配器，预期电流计算器，转换矩阵发生器，代表性电压计算器和补偿器。 该区域分配器被配置为将显示面板划分为多个区域，并且显示面板包括多个电力线和被配置为经由电力线接收电力电压的多个像素。 预期电流计算器被配置为基于提供给每个区域的输入数据来计算在每个区域中流动的期望电流。 转换矩阵发生器被配置为基于每个电力线的线路电阻产生转换矩阵，并且基于转换矩阵将预期电流转换为提供给区域的代表性电压。

公开(公告)号：US12243468B2

公开(公告)日：2025-03-04

申请号：US18109995

申请日：2023-02-15

Applicant: Samsung Display Co., Ltd.

Inventor： Heesook Park ,  Kyoungho Lim ,  Daye Moon

IPC: G09G3/20

Abstract: A display device includes a display panel divided into panel blocks including pixels, and a display panel driver which drives the display panel, sets a time point to which a set time elapses from a time point when input image data is determined to be a still image as an operation time point, decreases a luminance gain from the operation time point, determines the set time based on accumulated deterioration amounts of the panel blocks, and applies the luminance gain to the input image data.

公开(公告)号：US11922849B2

公开(公告)日：2024-03-05

申请号：US18135273

申请日：2023-04-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kihyun Pyun ,  Heesook Park

IPC: G09G3/20

CPC classification number: G09G3/2007 ,  G09G2320/0223 ,  G09G2330/021 ,  G09G2330/028

Abstract: A display apparatus including: a display panel including a plurality of display blocks; and a display panel driver configured to generate a power voltage based on a maximum grayscale value of input image data and a position of a maximum load block among the display blocks and configured to output the power voltage to the display panel, wherein the maximum load block has a largest load of the input image data among the display blocks.

公开(公告)号：US11545063B2

公开(公告)日：2023-01-03

申请号：US17388808

申请日：2021-07-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kihyun Pyun ,  Heesook Park

IPC: G09G3/30 ,  G09G3/36 ,  G09G3/20

Abstract: A data transmission circuit includes a transmitter configured to transmit a data signal, a receiver configured to receive the data signal, a first transmission line connected between the transmitter and the receiver, and a second transmission line connected between the transmitter and the receiver. The data signal includes a line start signal, and a configuration signal. The data signal further includes at least one of an inverted line start signal which is an inverted version of the line start signal or an inverted configuration signal which is an inverted version of the configuration signal.

公开(公告)号：US11423822B2

公开(公告)日：2022-08-23

申请号：US17445941

申请日：2021-08-25

Applicant: Samsung Display Co., Ltd.

Inventor： Heesook Park ,  Kihyun Pyun

IPC: G09G3/20

Abstract: An embodiment of a display apparatus includes a display panel, a driving controller, and a data driver. In operation the driving controller determines a gain reducing area based on an edge load of input image data corresponding to an edge area of the display panel and compensates a grayscale value of the input image data corresponding to the gain reducing area to generate a data signal. The data driver converts the data signal to a data voltage and outputs the data voltage to the display panel.

公开(公告)号：US12002408B2

公开(公告)日：2024-06-04

申请号：US17863854

申请日：2022-07-13

Applicant: Samsung Display Co., Ltd.

Inventor： Daye Moon ,  Bonggyun Kang ,  Kyoungho Lim ,  Heesook Park

IPC: G09G3/20

CPC classification number: G09G3/2096 ,  G09G3/20 ,  G09G2300/0413 ,  G09G2310/0275 ,  G09G2320/0257 ,  G09G2320/046 ,  G09G2330/021

Abstract: A display device includes a display panel and a display image shift controller. The display panel includes a display area in which a display image is displayed and a shift area located within the display area. The display image shift controller generates a route shift signal, where a reference point of the display image is shifted in the shift area based on the route shift signal. The route shift signal includes first and second routes corresponding to a path through which the reference point of the display image is shifted. The first route includes a first sub-route and a second sub-route. The second route includes a third sub-route and a fourth sub-route. The first, second, third, and fourth sub-routes are different from each other.

公开(公告)号：US11972737B2

公开(公告)日：2024-04-30

申请号：US18118096

申请日：2023-03-06

Applicant: Samsung Display Co., Ltd.

Inventor： Heesook Park ,  Daye Moon ,  Kyoungho Lim ,  Seulki Son

IPC: G09G3/3241 ,  G09G3/3283 ,  G09G3/3291

CPC classification number: G09G3/3291 ,  G09G2320/0233 ,  G09G2320/0626

Abstract: A display device includes a display panel which includes a compensation area, an image processing device, a timing controller which includes an average luminance decrease rate calculator which calculates an average luminance decrease rate, a luminance decrease rate calculator which calculates a luminance decrease rate for the compensation area, and a data compensator which generates output image data by applying the luminance decrease rate for the compensation area to the input image data, and a data driver which provides data voltages generated based on the output image data to the display panel.