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1.发明授权公开(公告)号：US10922800B2
公开(公告)日：2021-02-16
申请号：US16380324
申请日：2019-04-10
Applicant: Samsung Display Co., Ltd.
Inventor： Jinpil Kim , Hoisik Moon , Jaesung Bae , Jeongwoon Lee , Namjae Lim
Abstract: An image processing circuit includes a memory, a gamma converter which converts a first image data signal of a frame to a current image data signal thereof corresponding to first or second gamma types based on a spatial distribution pattern, a compression circuit which separates the current image data signal into first and second gamma signals corresponding to the first and second gamma types and compresses the first and second gamma signals to first and second compression gamma signals to store the first and second compression gamma signals, a decompression circuit which output a previous image data signal of a previous frame by decompressing the first and second compression gamma signals and combines first and second decompression gamma signals, and a gamma correction circuit which performs a gamma adjustment based on current and previous image data signals to output a second image data signal.
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公开(公告)号：US20140176407A1
公开(公告)日：2014-06-26
申请号：US13891485
申请日：2013-05-10
Applicant: Samsung Display Co., Ltd.
Inventor： Hak-Mo CHOI , Jong-Hee Na , Gwangho Nam , Hoisik Moon , Chang-Soo Lee , Min-Yup Chae , Jae-Suk Choi
IPC: G09G3/36
CPC classification number: G09G3/3648 , G09G3/3677 , G09G2310/06 , G09G2360/18
Abstract: A display device includes pixels respectively arranged in areas defined by gate lines and data lines, a gate driver that drives the gate lines in response to a gate pulse signal, a data driver that drives the data lines in response to a clock signal and a data signal, and a timing controller that applies the clock signal and the data signal to the data driver and the gate pulse signal to the gate driver in response to an image signal and a control signal. The timing controller periodically changes a pulse width of each of the gate pulse signal and the clock signal.
Abstract translation: 显示装置包括分别布置在由栅极线和数据线限定的区域中的像素，响应于栅极脉冲信号驱动栅极线的栅极驱动器，响应于时钟信号和数据驱动数据线的数据驱动器 信号和定时控制器，其响应于图像信号和控制信号将时钟信号和数据信号施加到数据驱动器和门脉冲信号到栅极驱动器。 定时控制器周期性地改变每个门脉冲信号和时钟信号的脉冲宽度。
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公开(公告)号：US11315484B2
公开(公告)日：2022-04-26
申请号：US16850647
申请日：2020-04-16
Applicant: Samsung Display Co., Ltd.
Inventor： Jinpil Kim , Hoisik Moon
IPC: G09G3/32
Abstract: A display apparatus includes: a display panel comprising a plurality of pixels configured to display an image based on input image data; a gate driver configured to output a gate signal to the display panel; a data driver configured to output a data voltage to the display panel; a light source part configured to provide light to the display panel and comprising a plurality of light sources; and a light source driver configured to drive the light source part, wherein a first light source of the light source part is configured to output a first luminance in an active period defined by the data voltage being output to the pixel and a second luminance greater than the first luminance in an inactive period defined by the data voltage is not being output to the pixel.
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公开(公告)号：US09390645B2
公开(公告)日：2016-07-12
申请号：US14450130
申请日：2014-08-01
Applicant: Samsung Display Co., Ltd.
Inventor： Jae-Seok Choi , Hoisik Moon , Gwangho Nam , Chang-Soo Lee , Min-Yup Chae , Hak-Mo Choi
CPC classification number: G09G3/20 , G09G2320/0276 , G09G2320/0285 , G09G2320/0673 , G09G2320/0693
Abstract: A display apparatus is provided. The display apparatus includes a display panel including a plurality of display blocks; a driving circuit configured to control an image to be displayed on the display panel; and a timing controller configured to control the driving circuit in response to an image signal and a control signal and to provide a data signal to the driving circuit, wherein the timing controller comprises a memory storing gamma correction values corresponding to gray scales of the image signal, and wherein the timing controller outputs the data signal, and the data signal is obtained by correcting the image signal using the gamma correction values.
Abstract translation: 提供一种显示装置。 显示装置包括：显示面板，包括多个显示块; 驱动电路，被配置为控制要在所述显示面板上显示的图像; 以及定时控制器，其被配置为响应于图像信号和控制信号来控制所述驱动电路，并且向所述驱动电路提供数据信号，其中所述定时控制器包括存储与所述图像信号的灰度级对应的伽马校正值的存储器 并且其中定时控制器输出数据信号，并且通过使用伽马校正值校正图像信号来获得数据信号。
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公开(公告)号：US11302261B2
公开(公告)日：2022-04-12
申请号：US16833734
申请日：2020-03-30
Applicant: Samsung Display Co., Ltd.
Inventor： Jinpil Kim , Namjae Lim , Hoisik Moon , Jae Sung Bae
IPC: G09G3/3275 , G09G3/36
Abstract: A display apparatus includes a display panel, a driving controller and a data driver. The display panel is configured to display an image. The driving controller is configured to generate a compensated image data for compensating a decrease of a luminance of an edge portion of the display panel based on input image data. The data driver is configured to output a data voltage to the display panel based on the compensated image data. The driving controller is configured to generate the compensated image data by comparing a maximum value among subpixel grayscale values of the input image data to which a luminance compensating coefficient is applied and a maximum grayscale value of the input image data. The luminance compensating coefficient is configured to be determined according to a location in the display panel.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11257417B2
公开(公告)日：2022-02-22
申请号：US16710164
申请日：2019-12-11
Applicant: Samsung Display Co., Ltd.
Inventor： Hyungwoo Yim , Juneyoung Lee , Jae-Seob Chung , Hoisik Moon
IPC: G09G3/20
Abstract: In a method of generating correction data for a display device, measured tristimulus data at a maximum gray level are obtained, measured luminance and color coordinate profiles are obtained based on the measured tristimulus data, a target color coordinate profile is determined based on the measured color coordinate profile, measured red, green and blue maximum luminances of each pixel are obtained, a maximum target luminance of the each pixel is determined such that red, green and blue luminances of the each pixel become lower than or equal to the measured red, green and blue maximum luminances, respectively, a final target luminance profile is determined based on the measured luminance profile and the maximum target luminance of the each pixel, and correction data may be generated and stored in the display device based on the final target luminance profile and the target color coordinate profile.
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公开(公告)号：US10089942B2
公开(公告)日：2018-10-02
申请号：US15255697
申请日：2016-09-02
Applicant: Samsung Display Co., Ltd.
Inventor： Hoisik Moon , Jae-seok Choi , Kang-hyun Kim , Jong-hee Na , Juneyoung Lee , Hyungwoo Yim , Jae-seob Chung , Min-yup Chae , Jung-suk Han
Abstract: A display device includes a mapping unit for mapping main color data having information on three main colors to generate mapped main data including red, green, and blue information and mapped white data including white information, a compensation lookup table for storing a plurality of gamma compensation values, a gamma compensator for generating compensated main data obtained by gamma-compensating the mapped main data based on a first gamma compensation value corresponding to first gamma white data from among the plurality of gamma compensation values and a second gamma compensation value corresponding to second gamma white data from among the plurality of gamma compensation values by referring to the compensation lookup table, a renderer for sub-pixel-rendering the mapped white data to generate rendered white data, and a splitter for converting the rendered white data into the first and second gamma white data based on different first and second gamma curves, respectively.
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公开(公告)号：US11538149B2
公开(公告)日：2022-12-27
申请号：US16894660
申请日：2020-06-05
Applicant: Samsung Display Co., Ltd.
Inventor： Seyun Kim , Hoisik Moon , Mingyu Kim , Sangcheol Park , Jae-Seok Choi
IPC: G06T7/00
Abstract: Provided is a spot detection device including an imager configured to capture a display panel displaying a first image of a first grayscale and a second image of a second grayscale different from the first grayscale and generate image data, and a spot detector configured to receive the image data from the imager in order to detect a spot. The image data includes first image data obtained by capturing the first image, second image data obtained by capturing the second image, and a plurality of third image data obtained by capturing portions of the first image.
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公开(公告)号：US11514867B2
公开(公告)日：2022-11-29
申请号：US17687906
申请日：2022-03-07
Applicant: Samsung Display Co., Ltd.
Inventor： Jinpil Kim , Namjae Lim , Hoisik Moon , Jae Sung Bae
IPC: G09G3/3275 , G09G3/36
Abstract: A display apparatus includes a display panel, a driving controller and a data driver. The display panel is configured to display an image. The driving controller is configured to generate a compensated image data for compensating a decrease of a luminance of an edge portion of the display panel based on input image data. The data driver is configured to output a data voltage to the display panel based on the compensated image data. The driving controller is configured to generate the compensated image data by comparing a maximum value among subpixel grayscale values of the input image data to which a luminance compensating coefficient is applied and a maximum grayscale value of the input image data. The luminance compensating coefficient is configured to be determined according to a location in the display panel.
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公开(公告)号：US20170206846A1
公开(公告)日：2017-07-20
申请号：US15255697
申请日：2016-09-02
Applicant: Samsung Display Co., Ltd.
Inventor： Hoisik Moon , Jae-seok Choi , Kang-hyun Kim , Jong-hee Na , Juneyoung Lee , Hyungwoo Yim , Jae-seob Chung , Min-yup Chae , Jung-suk Han
CPC classification number: G09G3/3607 , G09G3/2003 , G09G3/3611 , G09G2300/0443 , G09G2300/0452 , G09G2320/0673 , G09G2340/06
Abstract: A display device includes a mapping unit for mapping main color data having information on three main colors to generate mapped main data including red, green, and blue information and mapped white data including white information, a compensation lookup table for storing a plurality of gamma compensation values, a gamma compensator for generating compensated main data obtained by gamma-compensating the mapped main data based on a first gamma compensation value corresponding to first gamma white data from among the plurality of gamma compensation values and a second gamma compensation value corresponding to second gamma white data from among the plurality of gamma compensation values by referring to the compensation lookup table, a renderer for sub-pixel-rendering the mapped white data to generate rendered white data, and a splitter for converting the rendered white data into the first and second gamma white data based on different first and second gamma curves, respectively.
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