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公开(公告)号:US09070318B2
公开(公告)日:2015-06-30
申请号:US13756945
申请日:2013-02-01
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Jun-Ho Hwang , Jang-Hoon Kwak , Seung-Woon Shin , Yong-jin Shin , Jang-Mi Lee , Kihyun Pyun
CPC classification number: G09G5/12 , G09G3/342 , G09G2310/0281 , G09G2310/067 , G09G2320/0233
Abstract: A display device includes a display panel, a timing controller, a data driver, a gate driver and a backlight unit. The gate driver sequentially outputs gate signals to gate lines. The backlight unit performs an on-operation during a high section of a backlight control signal and an off-operation during a low section of the backlight control signal. The gate signals includes first gate signals that are output during the high section of the backlight control signal and have a first pulse width and second gate signals that are output during the low section of the backlight control signal and have a second pulse width greater than the first pulse width.
Abstract translation: 显示装置包括显示面板,定时控制器,数据驱动器,门驱动器和背光单元。 栅极驱动器顺序地将栅极信号输出到栅极线。 背光单元在背光控制信号的高部分和背光控制信号的低部分期间的关闭操作期间执行开启操作。 栅极信号包括在背光控制信号的高部分期间输出的第一栅极信号,并且具有在背光控制信号的低部分期间输出的第一脉冲宽度和第二栅极信号,并且具有大于 第一脉冲宽度。
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公开(公告)号:US20140085354A1
公开(公告)日:2014-03-27
申请号:US13756945
申请日:2013-02-01
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Jun-Ho Hwang , Jang-Hoon Kwak , Seung-Woon Shin , Yong-jin Shin , Jang-Mi Lee , Kihyun Pyun
IPC: G09G5/12
CPC classification number: G09G5/12 , G09G3/342 , G09G2310/0281 , G09G2310/067 , G09G2320/0233
Abstract: A display device includes a display panel, a timing controller, a data driver, a gate driver and a backlight unit. The gate driver sequentially outputs gate signals to gate lines. The backlight unit performs an on-operation during a high section of a backlight control signal and an off-operation during a low section of the backlight control signal. The gate signals includes first gate signals that are output during the high section of the backlight control signal and have a first pulse width and second gate signals that are output during the low section of the backlight control signal and have a second pulse width greater than the first pulse width.
Abstract translation: 显示装置包括显示面板,定时控制器,数据驱动器,门驱动器和背光单元。 栅极驱动器顺序地将栅极信号输出到栅极线。 背光单元在背光控制信号的高部分和背光控制信号的低部分期间的关闭操作期间执行开启操作。 栅极信号包括在背光控制信号的高部分期间输出的第一栅极信号,并且具有在背光控制信号的低部分期间输出的第一脉冲宽度和第二栅极信号,并且具有大于 第一脉冲宽度。
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公开(公告)号:US12283250B2
公开(公告)日:2025-04-22
申请号:US18130671
申请日:2023-04-04
Applicant: Samsung Display Co., Ltd.
Inventor: Kihyun Pyun , Jungeon An
IPC: G09G3/3275 , G09G3/3266
Abstract: A display device includes pixels which displays an image based on image data, a driving voltage generator which provides a driving voltage to each of the pixels, and a driving voltage controller which calculates block pixel numbers corresponding to first to nth grayscale blocks based on the image data, calculates maximum grayscales with respect to the first to nth grayscale blocks based on the image data, determines a maximum grayscale block among the first to nth grayscale blocks by comparing the block pixel numbers to minimum pixel numbers corresponding to the first to nth grayscale blocks, determines a maximum grayscale with respect to the maximum grayscale block based on the maximum grayscales, calculates a load of the image data, calculates a voltage drop amount of the driving voltage based on the load, and calculates a magnitude of the driving voltage based on the maximum grayscale and the voltage drop amount.
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公开(公告)号:US11990106B2
公开(公告)日:2024-05-21
申请号:US18066351
申请日:2022-12-15
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Kihyun Pyun , Eunjin Choi
IPC: G09G5/10
CPC classification number: G09G5/10 , G09G2310/0267 , G09G2310/027 , G09G2310/08 , G09G2320/0257 , G09G2320/041
Abstract: A screen saver controller includes a temperature calculator, a temperature comparator, an operator, and a screen saver data generator. The temperature calculator calculates temperature data of a display panel based on input image data. The temperature comparator receives the temperature data and a target temperature and compares a temperature of the display panel with the target temperature to generate temperature change data. The operator receives the temperature data and the temperature change data and generates operation data based on the temperature data and the temperature change data. The screen saver data generator receives the operation data and generates screen saver data based on the operation data. The screen saver controller adjusts a luminance of the display panel based on the screen saver data when operating in a first mode.
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45.
公开(公告)号:US11908401B2
公开(公告)日:2024-02-20
申请号:US18183124
申请日:2023-03-13
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Eunjin Choi , Wonjin Seo , Kihyun Pyun
IPC: G09G3/3208
CPC classification number: G09G3/3208 , G09G2320/0233 , G09G2320/04 , G09G2320/043 , G09G2320/046 , G09G2320/048 , G09G2320/062 , G09G2320/0686
Abstract: A driving controller includes: a logo determiner configured to determine whether or not input image data includes a logo; a logo grayscale value calculator configured to calculate a logo grayscale value of a logo area corresponding to the logo in response to the input image data including the logo; a light emitting element life expectancy determiner configured to determine a life expectancy of a light emitting element corresponding to the logo area; a compensation reference grayscale value generator configured to determine a compensation reference grayscale value according to the life expectancy of the light emitting element corresponding to the logo area; and a logo luminance compensator configured to compare the logo grayscale value to the compensation reference grayscale value to determine whether or not to compensate a luminance of the logo area.
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公开(公告)号:US11842696B2
公开(公告)日:2023-12-12
申请号:US17956942
申请日:2022-09-30
Applicant: Samsung Display Co., Ltd.
Inventor: Kihyun Pyun , Jang-Hoon Kwak
IPC: G09G3/3291
CPC classification number: G09G3/3291 , G09G2300/0842 , G09G2320/0233 , G09G2320/0271 , G09G2330/021
Abstract: A display device includes a display panel including a plurality of pixels, a current sensor connected to the display panel, a controller including a gray-data voltage storing block, a block load gain extracting block, a block load generating block, a final load generating block, a current control block and a data correction block, and a data driver providing data voltages to the plurality of pixels based on the output image data.
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公开(公告)号:US11790862B2
公开(公告)日:2023-10-17
申请号:US17646806
申请日:2022-01-03
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Jang-Mi Lee , Kihyun Pyun , Hyoseok Yun
IPC: G09G3/34 , G09G3/3208 , G09G3/36
CPC classification number: G09G3/3426 , G09G3/3208 , G09G3/3696 , G09G2330/021 , G09G2330/028
Abstract: A display apparatus includes a display panel having a plurality of pixels, a gate driver configured to provide a gate signal to the display panel, a data driver configured to provide a data signal to the display panel, and a driving controller configured to control the gate driver and the data driver and to receive input image data to generate output image data corresponding to the data signal. The driving controller is configured to determine a scale factor based on a total load value of previous input image data and to compare the current input image data with the previous input image data to determine whether to apply the scale factor to the current input image data.
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48.
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.
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49.
公开(公告)号:US20230222970A1
公开(公告)日:2023-07-13
申请号:US18183124
申请日:2023-03-13
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Eunjin Choi , Wonjin Seo , Kihyun Pyun
IPC: G09G3/3208
CPC classification number: G09G3/3208 , G09G2320/043 , G09G2320/062 , G09G2320/048 , G09G2320/046 , G09G2320/0233 , G09G2320/0686 , G09G2320/04
Abstract: A driving controller includes: a logo determiner configured to determine whether or not input image data includes a logo; a logo grayscale value calculator configured to calculate a logo grayscale value of a logo area corresponding to the logo in response to the input image data including the logo; a light emitting element life expectancy determiner configured to determine a life expectancy of a light emitting element corresponding to the logo area; a compensation reference grayscale value generator configured to determine a compensation reference grayscale value according to the life expectancy of the light emitting element corresponding to the logo area; and a logo luminance compensator configured to compare the logo grayscale value to the compensation reference grayscale value to determine whether or not to compensate a luminance of the logo area.
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公开(公告)号:US11580917B2
公开(公告)日:2023-02-14
申请号:US17235105
申请日:2021-04-20
Applicant: Samsung Display Co., Ltd.
Inventor: Kihyun Pyun , Moonshik Kang , Dae-Sik Lee , Jun Pyo Lee , Min-Soo Choi , Songyi Han
Abstract: A light source apparatus includes a plurality of light source gate lines extending in a first direction, a plurality of light source data lines extending in a second direction crossing the first direction, a plurality of light source emission lines, a plurality of feedback lines and a plurality of light source blocks. At least one of the light source blocks is connected to the light source gate line, the light source data line, the light source emission line and the feedback line.
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