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公开(公告)号：US10163389B2
公开(公告)日：2018-12-25
申请号：US15370044
申请日：2016-12-06
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Bo-Young An , Ho-Suk Maeng , Jong-Woong Park
IPC: G09G3/3208
Abstract: An electronic device includes an organic light emitting diode (OLED) display device, and a display controller configured to provide image data to the OLED display device. The display controller calculates stress data for the OLED display device by accumulating the image data, and determines a compensation factor for the OLED display device based on the stress data. The OLED display device receives the image data and the compensation factor from the display controller, converts the image data into compensated image data based on the compensation factor, and displays an image based on the compensated image data.
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公开(公告)号：US20170162109A1
公开(公告)日：2017-06-08
申请号：US15184945
申请日：2016-06-16
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Bo-Young An , Jae-Shin Kim , Ho-Suk Maeng , Jong-Woong Park
IPC: G09G3/3208 , G09G3/20
CPC classification number: G09G3/3208 , G09G3/2003 , G09G3/3233 , G09G2320/0242 , G09G2320/048 , G09G2330/026
Abstract: A degradation compensating device includes an accumulator configured to accumulate stress data every pixel block, a memory configured to receive the stress data from the accumulator, and to load accumulated data from an external flash memory when a display device power is turned on, the accumulated data being a total sum of the stress data, a compensation factor calculator configured to determine a target compensation factor based on the accumulated data to compensate image data, and to apply an initial compensation factor to the target compensation factor during a wake-up period after loading the accumulated data is completed, the initial compensation factor being changed gradually during the wake-up period, and a data compensator configured to generate image compensation data based on the target compensation factor, and to generate initial image data based on a wake-up factor that is an adjusted target compensation factor based on the initial compensation factor.
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公开(公告)号：US09940872B2
公开(公告)日：2018-04-10
申请号：US15184945
申请日：2016-06-16
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Bo-Young An , Jae-Shin Kim , Ho-Suk Maeng , Jong-Woong Park
IPC: G09G3/32 , G09G3/3208 , G09G3/20
CPC classification number: G09G3/3208 , G09G3/2003 , G09G3/3233 , G09G2320/0242 , G09G2320/048 , G09G2330/026
Abstract: A degradation compensating device includes an accumulator configured to accumulate stress data every pixel block, a memory configured to receive the stress data from the accumulator, and to load accumulated data from an external flash memory when a display device power is turned on, the accumulated data being a total sum of the stress data, a compensation factor calculator configured to determine a target compensation factor based on the accumulated data to compensate image data, and to apply an initial compensation factor to the target compensation factor during a wake-up period after loading the accumulated data is completed, the initial compensation factor being changed gradually during the wake-up period, and a data compensator configured to generate image compensation data based on the target compensation factor, and to generate initial image data based on a wake-up factor that is an adjusted target compensation factor based on the initial compensation factor.
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公开(公告)号：US20160329019A1
公开(公告)日：2016-11-10
申请号：US14855112
申请日：2015-09-15
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Bo-Young An
CPC classification number: G09G3/20 , G09G2320/0271 , G09G2320/0626 , G09G2320/0673 , G09G2330/028
Abstract: A display device according to example embodiments includes: a display panel including a plurality of pixels configured to display an image; a gamma voltage generator configured to generate a plurality of gamma sets respectively corresponding to a plurality of luminance ranges, and configured to compare a target luminance level with the luminance ranges to select a target gamma set among the gamma sets, and to generate a plurality of gamma voltages using the target gamma set, the target luminance level being a luminance level of the image; a first dimming controller configured to scale input image data based on the target luminance level; a second dimming controller configured to determine an off duty ratio of an emission signal based on the target luminance level; and a display panel driver configured to drive the display panel based on the input image data and the gamma voltages.
Abstract translation: 根据示例实施例的显示装置包括：显示面板，包括被配置为显示图像的多个像素; 伽马电压发生器，被配置为生成分别对应于多个亮度范围的多个伽马组，并且被配置为将目标亮度级与亮度范围进行比较，以选择伽马组之中的目标伽马组，并且生成多个 使用目标伽马组的伽马电压，目标亮度级是图像的亮度级; 第一调光控制器，被配置为基于所述目标亮度水平来缩放输入图像数据; 第二调光控制器，被配置为基于所述目标亮度级确定发射信号的占空比; 以及配置为基于输入图像数据和伽玛电压驱动显示面板的显示面板驱动器。
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公开(公告)号：US09940863B2
公开(公告)日：2018-04-10
申请号：US14855112
申请日：2015-09-15
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Bo-Young An
CPC classification number: G09G3/20 , G09G2320/0271 , G09G2320/0626 , G09G2320/0673 , G09G2330/028
Abstract: A display device according to example embodiments includes: a display panel including a plurality of pixels configured to display an image; a gamma voltage generator configured to generate a plurality of gamma sets respectively corresponding to a plurality of luminance ranges, and configured to compare a target luminance level with the luminance ranges to select a target gamma set among the gamma sets, and to generate a plurality of gamma voltages using the target gamma set, the target luminance level being a luminance level of the image; a first dimming controller configured to scale input image data based on the target luminance level; a second dimming controller configured to determine an off duty ratio of an emission signal based on the target luminance level; and a display panel driver configured to drive the display panel based on the input image data and the gamma voltages.
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Patent Agency Ranking
公开(公告)号：US09886909B2
公开(公告)日：2018-02-06
申请号：US14737855
申请日：2015-06-12
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Bo-Young An , Ji-Yun Son , Ho-Suk Maeng
IPC: G09G3/32 , G09G3/3291 , G09G3/20
CPC classification number: G09G3/3291 , G09G3/20 , G09G2310/0218 , G09G2310/0221 , G09G2320/0233 , G09G2320/0626 , G09G2330/021 , G09G2360/16
Abstract: A display device includes a display panel including a first display area and a second display area, a primary driver integrated circuit (IC) to receive first input image of the first display area, to determine a luminance correction factor based on a sum of a first On-Pixel-Ratio (OPR) of the first display area and a second OPR of the second display area, to output a first image data signal to which the first input image data is remapped using the luminance correction factor, a secondary driver IC to receive second input image data of the second display area, to calculate the second OPR, to provide the second OPR to the primary driver IC, and to output a second image data signal to which the second input image data is remapped using the luminance correction factor, and a scan driver.
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公开(公告)号：US09569997B2
公开(公告)日：2017-02-14
申请号：US14561618
申请日：2014-12-05
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Bo-Young An
IPC: G09G3/20
CPC classification number: G09G3/2092 , G09G3/20 , G09G2310/08 , G09G2330/02
Abstract: A display device includes a timing control circuit, a driving circuit, a display panel, and a DC voltage converter. The timing control circuit generates a data signal based on an image signal. The driving circuit generates a first conversion control signal and a second conversion control signal representing a status of the first conversion control signal. The driving circuit generates a driven signal based on the data signal and is powered by a first DC voltage. The display panel is powered by a second DC voltage. The DC voltage converter includes first and second DC voltage conversion circuits. The first DC voltage conversion circuit generates the first DC voltage based on an external voltage. The second DC voltage conversion circuit generates the second DC voltage based on the external voltage. The DC voltage converter executes time-shared control of the first and second DC voltage conversion circuits based on the first and second conversion control signals.
Abstract translation: 显示装置包括定时控制电路，驱动电路，显示面板和直流电压转换器。 定时控制电路根据图像信号生成数据信号。 驱动电路产生表示第一转换控制信号的状态的第一转换控制信号和第二转换控制信号。 驱动电路基于数据信号产生驱动信号，并由第一直流电压供电。 显示面板由第二直流电压供电。 直流电压转换器包括第一和第二直流电压转换电路。 第一直流电压转换电路基于外部电压产生第一直流电压。 第二直流电压转换电路基于外部电压产生第二直流电压。 直流电压转换器基于第一和第二转换控制信号执行第一和第二直流电压转换电路的时间共享控制。
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公开(公告)号：US10332432B2
公开(公告)日：2019-06-25
申请号：US15434647
申请日：2017-02-16
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Bo-Young An , Ji-Hye Shin , Komiya Naoaki , Ho-Suk Maeng
IPC: G06F3/01 , G09G3/00 , G09G3/20 , G09G3/3266 , G09G3/3275 , G09G5/00
Abstract: A display device includes a display panel, a timing controller, and a data driver. The display panel includes a central region and a peripheral region. The timing controller converts image data to converted data so that a maximum luminance of the peripheral region is less than a maximum luminance of the central region. The data driver generates a data signal based on the converted data and to provide the data signal to the display panel.
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公开(公告)号：US09558693B2
公开(公告)日：2017-01-31
申请号：US14702918
申请日：2015-05-04
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Bo-Young An , Sung-Chun Park
IPC: G09G3/3208 , G09G3/32
CPC classification number: G09G3/3208 , G09G2310/08 , G09G2330/022 , G09G2330/028
Abstract: A display device includes a display panel driver and a DC-DC converter. The display panel driver divides one frame into a plurality of periods and outputs a control signal to generate an analog supply voltage, a first power voltage, and a second power voltage for driving pixels. The DC-DC converter receives the control signal from the display panel driver through a single wire. The DC-DC converter includes an analog supply voltage generator, a first power voltage generator, and a second power voltage generator. The analog supply voltage generator generates the analog supply voltage during a first pulse period. The first power voltage generator generates the first power voltage during a second pulse period. The second power voltage generator generates the second power voltage during the third pulse period.
Abstract translation: 显示装置包括显示面板驱动器和DC-DC转换器。 显示面板驱动器将一帧分割成多个周期，并输出控制信号以产生用于驱动像素的模拟电源电压，第一电源电压和第二电源电压。 DC-DC转换器通过单线接收来自显示面板驱动器的控制信号。 DC-DC转换器包括模拟电源电压发生器，第一电源电压发生器和第二电力电压发生器。 模拟电源电压发生器在第一个脉冲周期内产生模拟电源电压。 第一电源电压发生器在第二脉冲周期期间产生第一电源电压。 第二电源电压发生器在第三脉冲周期期间产生第二电源电压。
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公开(公告)号：US10565958B2
公开(公告)日：2020-02-18
申请号：US15141016
申请日：2016-04-28
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Bo-Young An , Ji-Yun Son , Ho-Suk Maeng
IPC: G09G5/10
Abstract: An image processing device includes a current limiter and a brightness controller. The current limiter calculates compensating data based on an on-pixel ratio of an image signal and calculates a compensation brightness data of the image signal based on the compensating data. The compensating data decreases the driving current of the image signal. The brightness controller selects one of a plurality of gamma sets and one of a plurality of dimming values based on the compensation brightness data.
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