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公开(公告)号：US10762816B2
公开(公告)日：2020-09-01
申请号：US16045918
申请日：2018-07-26
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Jae Han Lee , Myeong Su Kim , Sun Koo Kang , Bo Yeon Kim , Dong Won Park , Tae Gon Im , Jung Hwan Cho
Abstract: A display device may include a timing controller, a data driver and a plurality of pixels. The timing controller supplies a clock training pattern over a data/clock signal line in a first time period, and supplies pixel/control data over the data/clock signal line in a second time period. The data driver generates a clock signal, using the clock training pattern, in the first period, and generate a plurality of data voltages based on the plurality of pixel data, using the clock signal, in the second period. The plurality of pixels receive the plurality of data voltages and emit corresponding light. During the second period, the data driver outputs a feedback signal to the timing controller indicating that the locking of the clock signal has failed. The timing controller re-supplies the clock training pattern in response to the feedback signal.
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2.发明申请公开(公告)号：US20190340989A1
公开(公告)日：2019-11-07
申请号：US16397263
申请日：2019-04-29
Applicant: SAMSUNG DISPLAY CO, LTD
Inventor： JAE-HAN LEE , Sun-Koo Kang , Soo Yeon Kim , Tae Gon Im , Moon Shik Kang , Jung Hwan Cho
Abstract: A display device includes a display panel including data lines, gate lines, and pixels connected to the data lines and the gate lines, a data driver configured to drive the data lines, a plurality of gate drivers, each configured to drive a corresponding portion of the gate lines, and a plurality of feedback lines connected to one of the data lines at a plurality of measurement positions corresponding to the plurality of gate drivers. The data driver applies a test voltage to the data line, receives the test voltage as a plurality of feedback voltages through the plurality of feedback lines, and determines gate shift amounts at the plurality of measurement positions corresponding to the plurality of gate drivers based on the plurality of feedback voltages. The gate drivers apply gate signals to the gate lines that are shifted by the determined gate shift amounts.
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公开(公告)号：US09251756B2
公开(公告)日：2016-02-02
申请号：US14025479
申请日：2013-09-12
Applicant: Samsung Display Co., Ltd.
Inventor： Yong-Jun Choi , Hyun Seok Ko , Po-Yun Park , Min Joo Lee , Youn Jin Jung , Jung Hwan Cho
CPC classification number: G09G3/3677 , G09G3/3614 , G09G3/3648 , G09G2320/0247 , G09G2320/0626 , G09G2320/0673 , G09G2340/0428
Abstract: A display device includes: a display panel configured to display an image; and a signal controller configured to control signals to drive the display panel. The signal controller includes: an image data converter configured to convert image data of “m” bits into image data of “n” bits; a gray voltage generator configured to generate a gray voltage corresponding to the image data of “n” bits; a control signal generator configured to generate a gate control signal; and a luminance change controller configured to control a luminance change period of an image displayed via the display panel to be greater than or equal to one second.
Abstract translation: 显示装置包括：显示面板，被配置为显示图像; 以及配置成控制信号以驱动显示面板的信号控制器。 信号控制器包括：图像数据转换器，被配置为将“m”位的图像数据转换为“n”位的图像数据; 灰度电压发生器，被配置为产生与“n”位的图像数据相对应的灰度电压; 被配置为产生门控制信号的控制信号发生器; 以及亮度变化控制器，被配置为控制经由显示面板显示的图像的亮度变化周期大于或等于1秒。
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Patent Agency Ranking
公开(公告)号：US10127882B2
公开(公告)日：2018-11-13
申请号：US15214966
申请日：2016-07-20
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Ga-Na Kim , Dong-Won Park , Po-Yun Park , Jimyoung Seo , Whee-Won Lee , Bonghyun You , Jung Hwan Cho
Abstract: A method of driving a display apparatus includes determining a duration of a blank interval between a first frame and a second frame, wherein the second frame is subsequent to the first frame, and modulating a common voltage during the blank interval when the duration is longer than a first reference time, wherein an average of the common voltage is fixed during the blank interval.
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公开(公告)号：US10909897B2
公开(公告)日：2021-02-02
申请号：US16556080
申请日：2019-08-29
Applicant: Samsung Display Co., Ltd.
Inventor： Jae-Han Lee , Sooyeon Kim , Taegon Im , Jung Hwan Cho
Abstract: A gate driving circuit includes a shift register configured to generate a plurality of output signals based on at least one clock signal, a plurality of output buffers configured to generate a plurality of gate signals by amplifying the output signals and to sequentially output the gate signals to a plurality of gate lines in a display panel, a detector configured to sequentially sense the gate signals and to compare each of the gate signals to a reference voltage, and a dummy output buffer configured to be coupled between the shift register and a gate line of the gate lines instead of an output buffer of the output buffers when a voltage level of a corresponding gate signal from the output buffers is less than a voltage level of the reference voltage.
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公开(公告)号：US20140307003A1
公开(公告)日：2014-10-16
申请号：US14025479
申请日：2013-09-12
Applicant: Samsung Display Co., Ltd.
Inventor： Yong-Jun CHOI , Hyun Seok Ko , Po-Yun Park , Min Joo Lee , Youn Jin Jung , Jung Hwan Cho
IPC: G09G3/20
CPC classification number: G09G3/3677 , G09G3/3614 , G09G3/3648 , G09G2320/0247 , G09G2320/0626 , G09G2320/0673 , G09G2340/0428
Abstract: A display device includes: a display panel configured to display an image; and a signal controller configured to control signals to drive the display panel. The signal controller includes: an image data converter configured to convert image data of “m” bits into image data of “n” bits; a gray voltage generator configured to generate a gray voltage corresponding to the image data of “n” bits; a control signal generator configured to generate a gate control signal; and a luminance change controller configured to control a luminance change period of an image displayed via the display panel to be greater than or equal to one second.
Abstract translation: 显示装置包括：显示面板，被配置为显示图像; 以及配置成控制信号以驱动显示面板的信号控制器。 信号控制器包括：图像数据转换器，被配置为将“m”位的图像数据转换为“n”位的图像数据; 灰度电压发生器，被配置为产生与“n”位的图像数据相对应的灰度电压; 被配置为产生门控制信号的控制信号发生器; 以及亮度变化控制器，被配置为控制经由显示面板显示的图像的亮度变化周期大于或等于1秒。
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公开(公告)号：US11107385B2
公开(公告)日：2021-08-31
申请号：US16938329
申请日：2020-07-24
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Soo Yeon Kim , Ji Ye Lee , Hee Jeong Seo , Tae Gon Im , Jung Hwan Cho
IPC: G09G3/20
Abstract: A display device includes a timing controller which supplies a clock training signal through a data clock signal line and a first control signal through a shared signal line in a first period of one frame, and supplies image data through the data clock signal line in a second period of the one frame, a data driver provided with data driving circuits which generate a clock signal based on the clock training signal and the first control signal in the first period, and generate data voltages based on the clock signal and the image data in the second period, and a pixel part which receives the data voltages from the data driver. The data driver may supply a second control signal indicating a reception state of the data driver to the timing controller through the shared signal line in the second period.
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公开(公告)号：US09672792B2
公开(公告)日：2017-06-06
申请号：US14836627
申请日：2015-08-26
Applicant: Samsung Display Co., Ltd.
Inventor： Yong-Jun Choi , Jae-Won Jeong , Jae-Suk Choi , Seung-Ho Baek , Joo Seok Yeom , Young-Su Han , Myeong-Su Kim , Yun-Jae Kim , Jin-Soo Kim , Seung Hwan Moon , Po-Yun Park , Jae Wan Park , Kwan-Young Oh , Min Joo Lee , Jung Hwan Cho
CPC classification number: G09G5/18 , G06T1/20 , G06T1/60 , G09G3/2092 , G09G3/3406 , G09G3/3648 , G09G2300/04 , G09G2320/0247 , G09G2320/0626 , G09G2320/064 , G09G2320/103 , G09G2330/021 , G09G2340/0435 , G09G2360/18
Abstract: The present invention provides a display device with reduced power consumption and that reduces changes in luminance, and perceptibility of flicker, and a driving method thereof. A display device according to an exemplary embodiment comprises: a display panel configured to display a still image and a motion picture; a signal controller configured to control signals for driving the display panel; and a graphics processing unit configured to transmit input image data to the signal controller, wherein the signal controller comprises a frame memory configured to store the input image data, and the display panel is driven at a first frequency when the motion picture is displayed and the display panel is driven at a second frequency that is lower than the first frequency when the still image is displayed.
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