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公开(公告)号：US10997938B2
公开(公告)日：2021-05-04
申请号：US16196608
申请日：2018-11-20
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Hong-Kyu Kim , Po-Yun Park , Gwang-Soo Ahn , Jung-Hwan Cho
Abstract: A display panel driving apparatus includes a data driving part, a data driving part and an off voltage controlling part. The data driving part is configured to output a data signal to a data line of a display panel. The gate driving part is configured to output a gate signal to a gate line of the display panel. The off voltage controlling part is configured to receive a first off voltage and a second off voltage applied to the gate driving part to generate the gate signal, measure a leakage current of the gate driving part, and control the first off voltage based on the leakage current. Thus, display quality of a display apparatus including the gate driving part may be improved.
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公开(公告)号：US10819333B2
公开(公告)日：2020-10-27
申请号：US16260346
申请日：2019-01-29
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Ga-Na Kim , Po-Yun Park , Hong-Kyu Kim , Myeongsu Kim , Dongwon Park
Abstract: A timing controller resetting circuit including: a resistor connected to an output node from which a reset signal is output and a first voltage source which supplies a first voltage; a capacitor connected to the output node and a second voltage source which supplies a second voltage that is lower than the first voltage; a reference voltage source configured to generate a reference voltage that is lower than the first voltage and higher than the second voltage; a comparator including a first input terminal which receives the first voltage, a second input terminal which receives the reference voltage, and an output terminal which outputs a comparison result signal generated by comparing the first voltage with the reference voltage; and a transistor including a first terminal which is connected to the output node, a second terminal which receives the second voltage, and a gate terminal which receives the comparison result signal.
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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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4.发明授权Method of driving display panel and display apparatus for performing the same 有权驱动显示面板的方法和执行该显示面板的显示装置公开(公告)号：US09183809B2
公开(公告)日：2015-11-10
申请号：US13732865
申请日：2013-01-02
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Jae-Won Jeong , Woo-Jin Jung , Kang-Hyun Kim , Po-Yun Park , Kwan-Young Oh , Jee-Hoon Jeon , Youn-Jin Jung , Young-Suk Ha
CPC classification number: G09G5/001 , G09G3/3607 , G09G3/3696 , G09G2300/0426 , G09G2310/0251 , G09G2320/0209 , G09G2320/0242
Abstract: A display panel apparatus includes a display panel and a timing controller, and a data driver. The display panel includes a first subpixel and a second subpixel. The timing controller is configured to receive a first subpixel data for the first subpixel and a second subpixel data for the second subpixel. When the second subpixel is determined to be defective, the timing controller generates a compensated grayscale of the second subpixel data. The data driver is configured to apply a precharge voltage to the second subpixel and a charging voltage to second subpixel through a data line, wherein the precharge voltage is based on a grayscale of the first subpixel data and the charging voltage is based on the compensated grayscale of the second subpixel data.
Abstract translation: 显示面板装置包括显示面板和定时控制器以及数据驱动器。 显示面板包括第一子像素和第二子像素。 定时控制器被配置为接收第一子像素的第一子像素数据和第二子像素的第二子像素数据。 当第二子像素被确定为有缺陷时，定时控制器产生第二子像素数据的补偿灰度。 数据驱动器被配置为通过数据线向第二子像素施加预充电电压并向第二子像素施加充电电压，其中预充电电压基于第一子像素数据的灰度级，并且充电电压基于补偿灰度 的第二子像素数据。
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公开(公告)号：US10762858B2
公开(公告)日：2020-09-01
申请号：US15812451
申请日：2017-11-14
Applicant: Samsung Display Co., Ltd.
Inventor： Hong-Kyu Kim , Myeong Su Kim , Po-Yun Park , Gwang Soo Ahn
Abstract: A display device includes a display panel including: a plurality of pixels; and a signal controller which generates, on a frame-by-frame basis, a display signal based on an input image signal and a control signal from an outside. The signal controller includes a memory which stores a preset image signal, a receiver which receives the control signal, a clock signal modulator which generates an internal clock signal having a first frequency during a blank period, which is determined based on the control signal in a frame period, and a data processor which reads the preset image signal from the memory in response to the internal clock signal for an image processing.
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Patent Agency Ranking
公开(公告)号：US09905174B2
公开(公告)日：2018-02-27
申请号：US14620933
申请日：2015-02-12
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Jae Won Jeong , Kwan-Young Oh , Younjin Jung , Kyung-Uk Choi , Po-Yun Park , Sangyoung Lee
IPC: G09G3/36
CPC classification number: G09G3/3614 , G09G2310/0213 , G09G2320/0209 , G09G2320/0247
Abstract: A liquid crystal display device includes a liquid crystal panel which includes gate lines, data lines crossing the gate lines, and pixels connected to the gate lines and the data lines; a timing controller for receiving a control signal and image data and for generating a gate control signal and a data control signal; a gate driver for generating a gate signal based on the gate control signal and outputting the gate signal to the gate lines; and a data driver for performing data conversion on the image data based on the data control signal and outputting a conversion result to the data lines, wherein the timing controller analyzes the image data frame by frame data and applies two or more inversion driving techniques to frame data.
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公开(公告)号：US09305501B2
公开(公告)日：2016-04-05
申请号：US13668777
申请日：2012-11-05
Applicant: Samsung Display Co., Ltd.
Inventor： Yong-Jun Choi , Hyun Seok Ko , Po-Yun Park , Min Joo Lee , Jung-Hwan Cho
CPC classification number: G09G3/3614 , G09G2320/0247 , G09G2330/021 , G09G2360/10
Abstract: A method to drive a display device includes: transmitting at least one data voltage to one or more of a plurality of data lines, scanning one or more of a plurality of gate lines to enable transmission of a gate signal in association with a first frame of a first hold section of a first still image section associated with display of a still image, and scanning one or more of the plurality of gate lines to enable transmission of the gate signal every frame of a first refresh section. The first still image section comprises the first refresh section.
Abstract translation: 一种用于驱动显示装置的方法包括：向至少一条数据线中的一条或多条数据线发送至少一个数据电压，扫描多条栅极线中的一条或多条栅极线以使得能够传输与第一帧相关联的栅极信号 与静止图像的显示相关联的第一静止图像部分的第一保持部分，以及扫描多个栅极线中的一个或多个以使得能够在第一刷新部分的每一帧传输门信号。 第一静止图像部分包括第一刷新部分。
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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：US11320704B2
公开(公告)日：2022-05-03
申请号：US16781982
申请日：2020-02-04
Applicant: Samsung Display Co., Ltd.
Inventor： Yoo Jeong Lee , Seung Jae Kang , Po-Yun Park , Hak Bum Choi
IPC: H05K1/18 , H05K5/00 , G02F1/1343 , G02F1/1362
Abstract: A display device includes: a first substrate that includes a plurality of first pads arranged in a first direction and a plurality of second pads arranged in parallel with the plurality of first pads; a second substrate that overlaps the first substrate and includes a second substrate including one edge exposing the plurality of first pads and the plurality of second pads; a first flexible printed circuit board that is electrically connected with the plurality of first pads; a second flexible printed circuit board that overlaps the first flexible printed circuit board and is electrically connected with the plurality of second pads; a protective layer that covers the first flexible printed circuit board and the second flexible printed circuit board from one edge of the second substrate to a width including the plurality of first pads and the plurality of second pads; and a blocking portion disposed on the first substrate at a distance from one edge of the second substrate by a width of the protective layer and contacting the protective layer.
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10.发明授权公开(公告)号：US11172160B2
公开(公告)日：2021-11-09
申请号：US16124094
申请日：2018-09-06
Applicant: Samsung Display Co., Ltd.
Inventor： Hong-Kyu Kim , Yong-Bum Kim , Po-Yun Park , Dong-Hyun Yeo , Byungkil Jeon
IPC: H04N7/01
Abstract: In a method of operating a display device supporting a variable frame mode, frame data are received during a constant active period of a frame period including the active period and a variable blank period, the received frame data are written to a frame memory in the active period, the received frame data are outputted to a data driver in the active period to display an image based on the received frame data, a time of the variable blank period is counted, and, when the time of the variable blank period reaches a predetermined threshold blank time, the frame data stored in the frame memory are outputted to the data driver in the variable blank period to display an image based on the frame data stored in the frame memory.
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