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公开(公告)号：US11282433B2
公开(公告)日：2022-03-22
申请号：US16986157
申请日：2020-08-05
Applicant: Samsung Display Co., Ltd.
Inventor： Su Min Yang , Wook Lee , Hye Ji Kim , Ki Hyun Pyun
Abstract: A display device includes first pixels partitioned into a plurality of blocks, each of the plurality of blocks being categorized as a first block or a second block, a sensor configured to generate first sensing data for at least two of the first pixels in each of the plurality of blocks during a first period, and a sensing controller configured to generate interpolated data for the first pixels that are not sensed by the sensor by interpolating the first sensing data, for the first block, and configured to forgo interpolation of the first sensing data, for the second block. The sensor generates second sensing data for the first pixels that are not sensed by the sensor, for the second block, during a second period after the first period.
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公开(公告)号：US11222576B2
公开(公告)日：2022-01-11
申请号：US16920795
申请日：2020-07-06
Applicant: Samsung Display Co., Ltd.
Inventor： Ki Hyun Pyun , Eun Jin Choi
IPC: G09G3/20
Abstract: A display device and a method for driving the same are described. The display device includes a plurality of pixels, a driving characteristic compensator for sensing driving characteristics of the pixels, generating first power source voltage information according to a change in the driving characteristics, and updating an RGB gamma look up table, a memory for storing the first power source voltage information and the RGB gamma look-up table, a power source manager for generating a first power source voltage based on the first power source voltage information, and a gamma controller for generating reference gamma voltages by dividing the first power source voltage supplied from the power source manager based on the RGB gamma look-up table. Therefore, power consumption of the display device may be reduced.
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公开(公告)号：US20210295767A1
公开(公告)日：2021-09-23
申请号：US17061154
申请日：2020-10-01
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Won Jin Seo , Eun Jin Choi , Ki Hyun Pyun
Abstract: A display device includes a display divided into a plurality of blocks including pixels, a timing controller for calculating a frame load for an image frame of input image data, and for generating image data by scaling grayscale values of the input image data using a scale factor, a data driver for generating a data signal corresponding to the image data, and for supplying the data signal to the pixels, a current sensor for sensing a global current flowing in a first power source line connected to the pixels, and a scale factor provider for correcting a unit target current determined using a reference block among the blocks based on a deviation in light emitting characteristics between the blocks, for calculating a target current using the frame load and a corrected unit target current, and for comparing the target current with the global current to calculate the scale factor.
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公开(公告)号：US20210264832A1
公开(公告)日：2021-08-26
申请号：US17006997
申请日：2020-08-31
Applicant: Samsung Display Co., Ltd.
Inventor： Won Jin Seo , Eun Jin Choi , Ki Hyun Pyun
IPC: G09G3/20
Abstract: A display device and a method of driving the same are provided. The display device according to an embodiment includes a plurality of pixel rows, a data driver configured to provide first data voltages which correspond to first line grayscale data to pixels disposed in an (N−1)-th pixel row, provide second data voltages which correspond to second line grayscale data to pixels disposed in an N-th pixel row, and provide third data voltages which correspond to third line grayscale data to pixels disposed in an (N+1)-th pixel row, and a data compensator configured to compensate for the second line grayscale data by using one of a first compensation and a second compensation based on the first line grayscale data, the second line grayscale data, and the third line grayscale data.
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公开(公告)号：US20210201849A1
公开(公告)日：2021-07-01
申请号：US17016988
申请日：2020-09-10
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： EUN JIN CHOI , Ki Hyun Pyun , Sung In Kang
Abstract: A display device includes a display panel including a plurality of pixels, a display panel driver, and a zone compensating circuit which divides the display panel into a plurality of unit blocks, obtains load values of input image data for the unit blocks, and generates corrected image data by correcting the input image data based on the load values. Each of the load values corresponds to one of the unit blocks. The display panel driver generates a data signal for displaying an image on the display panel based on the corrected image data. When grayscale values included in the input image data are the same, a luminance of the image displayed on the display panel is decreased moving away from a center of a reference block having a largest load value among the unit blocks based on the corrected image data.
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Patent Agency Ranking
公开(公告)号：US11011120B2
公开(公告)日：2021-05-18
申请号：US16806012
申请日：2020-03-02
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Ki Hyun Pyun , Myoung Seop Song , Myung Ho Lee
IPC: G09G3/3291 , G09G3/3266
Abstract: A display device includes: first pixels coupled to data lines and a first scan line; second pixels coupled to the data lines and a second scan line; a data driver for sequentially supplying, to the data lines, first data voltages corresponding to first grayscale values of the first pixels and second data voltages corresponding to second grayscale values of the second pixels; a scan driver for supplying a first scan signal to the first scan line, and supplying a second scan signal to the second scan line; and a precharge controller for determining a width of a pulse of the second scan signal, based on a comparison result of the second grayscale values and previous frame grayscale values and a comparison result of the first grayscale values and the second grayscale values.
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公开(公告)号：US11004396B2
公开(公告)日：2021-05-11
申请号：US16368001
申请日：2019-03-28
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Ki Hyun Pyun , Min Young Park
IPC: G09G3/3266 , G09G3/3275 , G06F12/02
Abstract: A timing controller includes: a data transmitter which transmits image data and a frame control signal to a data driver; a scan controller which transmits a scan start signal and a scan clock signal through scan control lines; and a memory interface which receives mode data from a control memory through a memory transmission line during a mode period, where the mode period is a period in which the scan controller does not transmit the scan start signal and the scan clock signal to the scan control lines.
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公开(公告)号：US09449565B2
公开(公告)日：2016-09-20
申请号：US14449874
申请日：2014-08-01
Applicant: Samsung Display Co., Ltd.
Inventor： Ki Hyun Pyun , Sung-Jun Kim , Jong-Young Yun
CPC classification number: G09G3/3611 , G09G2310/08 , G09G2330/04
Abstract: A display device includes: a plurality of pixels; a scan driver configured to apply a scan signal to a plurality of scan lines connected to the plurality of pixels; a data driver configured to apply a gray voltage to a plurality of data lines connected to the plurality of pixels; a signal controller configured to transmit a scan control signal for controlling operating of the scan driver to the scan driver, and configured to transmit a data control signal for controlling operating of the data driver to the data driver; a power supply configured to supply a power voltage for generation of the scan signal to the scan driver; and a short detector configured to detect a voltage level of the power voltage and generate an enable signal in response to the detection.
Abstract translation: 显示装置包括：多个像素; 扫描驱动器，被配置为向连接到所述多个像素的多条扫描线施加扫描信号; 配置为向连接到所述多个像素的多条数据线施加灰度电压的数据驱动器; 信号控制器，被配置为发送用于控制扫描驱动器的操作到扫描驱动器的扫描控制信号，并且被配置为发送用于控制数据驱动器的操作的数据控制信号到数据驱动器; 电源，被配置为向扫描驱动器提供用于产生扫描信号的电源电压; 以及短检测器，被配置为检测电源电压的电压电平并响应于检测而产生使能信号。
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公开(公告)号：US11968289B2
公开(公告)日：2024-04-23
申请号：US18088435
申请日：2022-12-23
Applicant: Samsung Display Co., Ltd.
Inventor： Ki Hyun Pyun , Min Young Park , Jong Min Shim
CPC classification number: H04L7/033 , G09G3/32 , H03L7/0807 , H03L7/0891 , H03L7/095 , H03L7/099 , H04L7/041 , G09G2300/0857 , G09G2310/027 , G09G2310/08 , H03K19/21
Abstract: A clock data recovery circuit includes the following elements: a phase detector for outputting a phase adjustment signal by comparing a clock signal of a first node and an input signal; a charge pump for adjusting a charge amount of a second node according to the phase adjustment signal; a first switch including one end coupled to the second node and including another end coupled to a third node; a second switch including one end which receives a bias voltage and including another end coupled to the third node; a capacitor including a first electrode coupled to the third node; third switches; and voltage control oscillators including control terminals coupled to the third node and including output terminals coupled to the first node through the third switches.
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公开(公告)号：US11915668B2
公开(公告)日：2024-02-27
申请号：US17739619
申请日：2022-05-09
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Eun Jin Choi , Ki Hyun Pyun , Sung In Kang
CPC classification number: G09G5/10 , G09G3/2007 , G09G2310/027 , G09G2310/0267 , G09G2310/08 , G09G2320/0686 , G09G2330/023
Abstract: A display device includes a display panel including a plurality of pixels, a display panel driver, and a zone compensating circuit which divides the display panel into a plurality of unit blocks, obtains load values of input image data for the unit blocks, and generates corrected image data by correcting the input image data based on the load values. Each of the load values corresponds to one of the unit blocks. The display panel driver generates a data signal for displaying an image on the display panel based on the corrected image data. When grayscale values included in the input image data are the same, a luminance of the image displayed on the display panel is decreased moving away from a center of a reference block having a largest load value among the unit blocks based on the corrected image data.
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