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公开(公告)号：US09602792B2
公开(公告)日：2017-03-21
申请号：US14674159
申请日：2015-03-31
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Jae-Won Jeong , Ga-Na Kim , Gyeong-Ub Moon , Kyung-Uk Choi , Myeongsu Kim
CPC classification number: H04N9/69 , G09G2320/0233 , G09G2320/0673 , G09G2320/0693 , G09G2360/145 , H04N5/202 , H04N17/04
Abstract: A display device is provided including a timing controller configured to output a test image signal, a data driver configured to output a plurality of data voltages corresponding to the test image signal; and a display panel configured to display a test image corresponding to the data voltages, wherein the timing controller includes a first processor configured to output the test image signal in response to a test signal, and a second processor configured to receive luminance information of the test image, correct a predetermined reference gamma voltage corresponding to the test image with reference to the received luminance information, and output the test signal, which corresponds to the reference gamma voltage, to the first processor.
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公开(公告)号：US09386651B2
公开(公告)日：2016-07-05
申请号：US14263124
申请日：2014-04-28
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Sanghyun Lee , Seonhye Kim , Jeong Bong Lee , MiKyung Kang , Kyung-Uk Choi
CPC classification number: H05B33/0851 , G09G3/342 , G09G3/3648 , G09G2320/064 , G09G2320/0646 , H05B33/0815 , H05B33/0827 , Y02B20/346
Abstract: A backlight unit includes a dimming signal generator configured to generate first and second pulse width modulation signals, first and second driving blocks configured to receive a driving voltage to emit a light, a controller configured to receive the first and second pulse width modulation signals and an output signal from one of the first and second driving blocks to generate a voltage control signal, and a voltage converter configured to control a level of an input voltage in response to the voltage control signal to generate the driving voltage.
Abstract translation: 背光单元包括被配置为产生第一和第二脉冲宽度调制信号的调光信号发生器，被配置为接收驱动电压以发光的第一和第二驱动块，被配置为接收第一和第二脉冲宽度调制信号的控制器和 输出信号以产生电压控制信号;以及电压转换器，被配置为响应于所述电压控制信号来控制输入电压的电平以产生所述驱动电压。
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公开(公告)号：US11276357B2
公开(公告)日：2022-03-15
申请号：US17145572
申请日：2021-01-11
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Jahun Koo , Jinho Park , Jong Deuk Moon , Su-Han Woo , Kyung-Hun Lee , Kyung-Uk Choi
Abstract: A liquid crystal display device includes a liquid crystal display panel, a light source configured to provide the liquid crystal display panel with a light, a vertical blank detector circuit configured to calculate a counting value of a vertical blank period of a frame by counting a synchronization signal, a luminance correction value calculator circuit configured to calculate a luminance correction value by comparing the counting value of the vertical blank period with a plurality of reference counting values, and a light source driver configured to generate a light source driving signal and provide the light source driving signal to the light source. The light source driving signal has a normal level corresponding to a normal luminance value in an active period of the frame and has a correction level corresponding to the luminance correction value in the vertical blank period of the frame.
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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：US09830848B2
公开(公告)日：2017-11-28
申请号：US14297192
申请日：2014-06-05
Applicant: Samsung Display Co., Ltd.
Inventor： Jae-Won Jeong , Hyun Seok Hong , Young-Su Kim , Jinhyun Ko , Hyelim Kim , Kyung-Uk Choi , Sangyoung Lee
CPC classification number: G09G3/2092 , G09G3/006 , G09G2320/041 , H03K17/04
Abstract: An exemplary embodiment of the present invention discloses a voltage generation circuit of a display apparatus, including at least one resistor, a memory configured to store a resistance value set signal, a controller changing a resistance value of the resistor referring to the resistance value set stored in the memory, and a voltage generator connected to one end of the resistor and is configured to receive an input current corresponding to the resistance value of the resistor and generate a gate-on voltage corresponding to the input current.
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Patent Agency Ranking
公开(公告)号：US10909935B2
公开(公告)日：2021-02-02
申请号：US16506154
申请日：2019-07-09
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Jahun Koo , Jinho Park , Jong Deuk Moon , Su-Han Woo , Kyung-Hun Lee , Kyung-Uk Choi
Abstract: A liquid crystal display device includes a liquid crystal display panel, a light source configured to provide the liquid crystal display panel with a light, a vertical blank detector circuit configured to calculate a counting value of a vertical blank period of a frame by counting a synchronization signal, a luminance correction value calculator circuit configured to calculate a luminance correction value by comparing the counting value of the vertical blank period with a plurality of reference counting values, and a light source driver configured to generate a light source driving signal and provide the light source driving signal to the light source. The light source driving signal has a normal level corresponding to a normal luminance value in an active period of the frame and has a correction level corresponding to the luminance correction value in the vertical blank period of the frame.
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公开(公告)号：US20200066215A1
公开(公告)日：2020-02-27
申请号：US16506154
申请日：2019-07-09
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Jahun Koo , Jinho Park , Jong Deuk Moon , Su-Han Woo , Kyung-Hun Lee , Kyung-Uk Choi
Abstract: A liquid crystal display device includes a liquid crystal display panel, a light source configured to provide the liquid crystal display panel with a light, a vertical blank detector circuit configured to calculate a counting value of a vertical blank period of a frame by counting a synchronization signal, a luminance correction value calculator circuit configured to calculate a luminance correction value by comparing the counting value of the vertical blank period with a plurality of reference counting values, and a light source driver configured to generate a light source driving signal and provide the light source driving signal to the light source. The light source driving signal has a normal level corresponding to a normal luminance value in an active period of the frame and has a correction level corresponding to the luminance correction value in the vertical blank period of the frame.
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公开(公告)号：US10522100B2
公开(公告)日：2019-12-31
申请号：US14788037
申请日：2015-06-30
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Jae-Won Jeong , Kwan-Young Oh , Ga-Na Kim , Gyeong-Ub Moon , Po-Yun Park , Ji-Woong Jeong , Kyung-Uk Choi , Sang-Ho Park
IPC: G09G3/36
Abstract: A method of driving a display panel includes compensating first pixel data corresponding to a first pixel of a plurality of pixels in the display panel based on at least one of a first decision, a second decision, or a third decision and generating a first data voltage corresponding to the compensated first pixel data. The first data voltage is applied to the first pixel through a data line. The first decision includes determining, based on a position of the first pixel, whether compensation for the first pixel data is required. The second decision includes determining, based on previous subpixel data and present subpixel data for the first pixel, whether the compensation for the first pixel data is required. The third decision includes determining whether the first pixel data complies with a compensation avoidance condition.
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公开(公告)号：US20150130371A1
公开(公告)日：2015-05-14
申请号：US14263124
申请日：2014-04-28
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Sanghyun Lee , Seonhye Kim , Jeong Bong Lee , MiKyung Kang , Kyung-Uk Choi
CPC classification number: H05B33/0851 , G09G3/342 , G09G3/3648 , G09G2320/064 , G09G2320/0646 , H05B33/0815 , H05B33/0827 , Y02B20/346
Abstract: A backlight unit includes a dimming signal generator configured to generate first and second pulse width modulation signals, first and second driving blocks configured to receive a driving voltage to emit a light, a controller configured to receive the first and second pulse width modulation signals and an output signal from one of the first and second driving blocks to generate a voltage control signal, and a voltage converter configured to control a level of an input voltage in response to the voltage control signal to generate the driving voltage.
Abstract translation: 背光单元包括被配置为产生第一和第二脉冲宽度调制信号的调光信号发生器，被配置为接收驱动电压以发光的第一和第二驱动块，被配置为接收第一和第二脉冲宽度调制信号的控制器和 输出信号以产生电压控制信号;以及电压转换器，被配置为响应于所述电压控制信号来控制输入电压的电平以产生所述驱动电压。
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10.发明授权Display device able to prevent an abnormal display caused by a soft fail and a method of driving the same 有权能够防止由软故障引起的异常显示的显示装置及其驱动方法公开(公告)号：US09013468B2
公开(公告)日：2015-04-21
申请号：US13734324
申请日：2013-01-04
Applicant: Samsung Display Co., Ltd.
Inventor： Kyung-Uk Choi , Seon Hye Kim , Sang Hyun Lee , Jeong Bong Lee
CPC classification number: G09G5/00 , G09G3/20 , G09G5/18 , G09G2310/0289 , G09G2330/028 , G09G2330/04 , G09G2330/06 , G09G2370/08
Abstract: A display device includes a data driver for applying a data signal to a data line; a gate driver for applying a gate signal to a gate line; a level shifter for shifting a voltage level of a signal applied to the gate driver; and a signal controller for controlling the data driver, the level shifter, and the gate driver, wherein when a signal exchange between the data driver and the signal controller has an abnormality, the signal controller maintains a control signal applied to the level shifter in an off level.
Abstract translation: 显示装置包括用于将数据信号施加到数据线的数据驱动器; 用于将栅极信号施加到栅极线的栅极驱动器; 电平移位器，用于移位施加到栅极驱动器的信号的电压电平; 以及用于控制数据驱动器，电平移位器和栅极驱动器的信号控制器，其中当数据驱动器和信号控制器之间的信号交换具有异常时，信号控制器将施加到电平移位器的控制信号保持在 关闭级别
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