Patents by Inventor Chang-Sin Kim
Chang-Sin Kim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10249234Abstract: A data driver according to an exemplary embodiment includes a plurality of first output channels, a plurality of second output channels, a data controller and a data driving integrated circuit IC. The plurality of first output channels are connected to a plurality of data lines. The data controller receives an image data signal and a data control signal. The data controller generates an image data of one frame unit according to the image data signal and the data control signal. The data controller generates an output channel on/off data based on channel selection data. The data driving IC generates a plurality of data signals and a plurality of dummy signals according to the image data of one frame unit. The data driving IC switches a plurality of first switches transmitting the plurality of data signals to the plurality of first output channels and a plurality of second switches transmitting the plurality of dummy signals to the plurality of second output channels.Type: GrantFiled: April 25, 2016Date of Patent: April 2, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Chang Sin Kim
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Patent number: 10192509Abstract: A display apparatus includes a timing controller, a data driver and a display panel. The timing controller generates a mode selection signal and output image data in response to input image data. The data driver generates first through N-th data voltages in response to the mode selection signal and the output image data and applies the first through N-th data voltages to first through N-th data lines. The display panel is connected to the first through N-th data lines. During the first operation mode, each of a polarity pattern of first through M-th data voltages and a polarity pattern of (M+1)-th through N-th data voltages repeats a first polarity pattern. During the second operation mode, the polarity pattern of the first through M-th data voltages repeats the first polarity pattern, and the polarity pattern of the (M+1)-th through N-th data voltages repeats a second polarity pattern.Type: GrantFiled: January 11, 2017Date of Patent: January 29, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jaehoon Lee, Jai-Hyun Koh, Chang Sin Kim, Bonghyun You, Jeong Bong Lee
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Publication number: 20170278452Abstract: A display apparatus includes a display panel. The display panel includes a substrate including a display area and a peripheral area adjacent to the display area, and a pixel array disposed on the display area. The display apparatus further includes a driving chip mounted on the peripheral area and configured to provide a driving signal to the pixel array. The driving chip includes a plurality of pads that are electrically connected to the display panel and disposed along a first direction. The pads include an input pad and a conductive alignment pad having a shape different from a shape of the input pad.Type: ApplicationFiled: January 18, 2017Publication date: September 28, 2017Inventors: CHANGGIL OH, SEONMI KIM, CHANG SIN KIM
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Publication number: 20170256228Abstract: A display apparatus includes a timing controller, a data driver and a display panel. The timing controller generates a mode selection signal and output image data in response to input image data. The data driver generates first through N-th data voltages in response to the mode selection signal and the output image data and applies the first through N-th data voltages to first through N-th data lines. The display panel is connected to the first through N-th data lines. During the first operation mode, each of a polarity pattern of first through M-th data voltages and a polarity pattern of (M+1)-th through N-th data voltages repeats a first polarity pattern. During the second operation mode, the polarity pattern of the first through M-th data voltages repeats the first polarity pattern, and the polarity pattern of the (M+1)-th through N-th data voltages repeats a second polarity pattern.Type: ApplicationFiled: January 11, 2017Publication date: September 7, 2017Inventors: JAEHOON LEE, JAI-HYUN KOH, CHANG SIN KIM, BONGHYUN YOU, JEONG BONG LEE
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Patent number: 9646560Abstract: A liquid crystal display (LCD) device includes a display including a plurality of pixels, a voltage compensation controller configured to control the plurality of pixels and determine whether to compensate a predetermined grayscale voltage to be applied to the plurality of pixels, and a voltage generator configured to provide the predetermined grayscale voltage to the plurality of pixels in response to the voltage compensation controller determining not to compensate the predetermined grayscale voltage, and to compensate the predetermined grayscale voltage and provide the compensated predetermined grayscale voltage to the plurality of pixels in response to the voltage compensation controller determining to compensate the predetermined grayscale voltage.Type: GrantFiled: February 5, 2015Date of Patent: May 9, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin-Woo Kim, Chang-Sig Kang, Yong-Joo Kim, Chang-Sin Kim, Jin-Woo Lee
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Publication number: 20170092188Abstract: A data driver according to an exemplary embodiment includes a plurality of first output channels, a plurality of second output channels, a data controller and a data driving integrated circuit IC. The plurality of first output channels are connected to a plurality of data lines. The data controller receives an image data signal and a data control signal. The data controller generates an image data of one frame unit according to the image data signal and the data control signal. The data controller generates an output channel on/off data based on channel selection data. The data driving IC generates a plurality of data signals and a plurality of dummy signals according to the image data of one frame unit. The data driving IC switches a plurality of first switches transmitting the plurality of data signals to the plurality of first output channels and a plurality of second switches transmitting the plurality of dummy signals to the plurality of second output channels.Type: ApplicationFiled: April 25, 2016Publication date: March 30, 2017Inventor: Chang Sin Kim
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Publication number: 20160140935Abstract: A display device includes signal lines comprising gate lines and data lines, wherein a respective data line is disposed to intersect with the gate lines. The display device further includes a repair line and a switch configured to electrically connect the repair line to a signal line, wherein a defective signal line can be electrically connected to the repair line.Type: ApplicationFiled: May 13, 2015Publication date: May 19, 2016Inventors: Young-Soo HWANG, Chang sin KIM
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Patent number: 9301357Abstract: A backlight unit includes light source units which emit light, and light source driving integrated circuits which control a brightness of the light source units, respectively. Each of the light source driving integrated circuits includes a current generator which generates a first current and a second current, a current level controller which controls a current value of the first current in response to duty ratio information of a pulse width modulation signal, a voltage supply unit which outputs a voltage corresponding to the second current, an output buffer unit which outputs the voltage from the voltage supply unit, and a driving switch unit which drives the light source units to allow a current corresponding to the voltage provided from the output buffer unit to flow through the light source units, where current values of the second current and the first current are the same as each other.Type: GrantFiled: July 16, 2012Date of Patent: March 29, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyung-Uk Choi, Byeong Doo Kang, Chang Sin Kim, Jeong Bong Lee
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Publication number: 20150356932Abstract: A liquid crystal display (LCD) device includes a display including a plurality of pixels, a voltage compensation controller configured to control the plurality of pixels and determine whether to compensate a predetermined grayscale voltage to be applied to the plurality of pixels, and a voltage generator configured to provide the predetermined grayscale voltage to the plurality of pixels in response to the voltage compensation controller determining not to compensate the predetermined grayscale voltage, and to compensate the predetermined grayscale voltage and provide the compensated predetermined grayscale voltage to the plurality of pixels in response to the voltage compensation controller determining to compensate the predetermined grayscale voltage.Type: ApplicationFiled: February 5, 2015Publication date: December 10, 2015Inventors: JIN-WOO KIM, CHANG-SIG KANG, YONG-JOO KIM, CHANG-SIN KIM, JIN-WOO LEE
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Patent number: 8963818Abstract: A display panel includes a plurality of data lines, a plurality of gate lines, a plurality of dummy loads, a pad portion and a fanout portion. The data lines are disposed in a display area, on which a plurality of pixels are disposed. The gate lines are disposed in the display area and cross the data lines. The dummy loads are disposed in a peripheral area surrounding the display area. The pad portion is disposed in the peripheral area and includes signal pads and dummy pads. The fanout portion includes a first fanout line portion connecting the data lines to the signal pads, and a second fanout line portion connecting the dummy loads to the dummy pads.Type: GrantFiled: August 18, 2011Date of Patent: February 24, 2015Assignee: Samsung Display Co., Ltd.Inventors: Chang-Sin Kim, Byeong-Doo Kang, Yong-Soon Lee, Ock-Jin Kim, Sang-Gon Lee
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Patent number: 8614720Abstract: A display device includes a driving device, which includes a signal controller which receives an input image signal and an input control signal and outputs an image data and a data control signal; a reference voltage generator which generates a first reference voltage and a second reference voltage; and a data driver which receives the image data and the data control signal from the signal controller and outputs a data voltage. The data control signal includes a first color gamma control signal, a second color gamma control signal, and a third color gamma control signal. The data driver includes a reference gamma voltage generator which receives the first reference voltage and the second reference voltage from the reference voltage generator, receives the first color, second color, and third color gamma control signals from the signal controller, and generates a reference gamma voltage according to color information of the image data.Type: GrantFiled: September 28, 2011Date of Patent: December 24, 2013Assignee: Samsung Display Co., Ltd.Inventors: Ock Jin Kim, Sang-Gon Lee, Yong-Soon Lee, Chang Sin Kim
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Publication number: 20130235090Abstract: A backlight unit includes light source units which emit light, and light source driving integrated circuits which control a brightness of the light source units, respectively. Each of the light source driving integrated circuits includes a current generator which generates a first current and a second current, a current level controller which controls a current value of the first current in response to duty ratio information of a pulse width modulation signal, a voltage supply unit which outputs a voltage corresponding to the second current, an output buffer unit which outputs the voltage from the voltage supply unit, and a driving switch unit which drives the light source units to allow a current corresponding to the voltage provided from the output buffer unit to flow through the light source units, where current values of the second current and the first current are the same as each other.Type: ApplicationFiled: July 16, 2012Publication date: September 12, 2013Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Kyung-Uk CHOI, Byeong Doo KANG, Chang Sin KIM, JEONG BONG LEE
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Publication number: 20120256970Abstract: A display device includes a driving device, which includes a signal controller which receives an input image signal and an input control signal and outputs an image data and a data control signal; a reference voltage generator which generates a first reference voltage and a second reference voltage; and a data driver which receives the image data and the data control signal from the signal controller and outputs a data voltage. The data control signal includes a first color gamma control signal, a second color gamma control signal, and a third color gamma control signal. The data driver includes a reference gamma voltage generator which receives the first reference voltage and the second reference voltage from the reference voltage generator, receives the first color, second color, and third color gamma control signals from the signal controller, and generates a reference gamma voltage according to color information of the image data.Type: ApplicationFiled: September 28, 2011Publication date: October 11, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ock Jin Kim, Sang-Gon Lee, Yong-Soon Lee, Chang Sin Kim
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Publication number: 20120188224Abstract: A data processing method for a display apparatus includes comparing data signals outputted to a first data line and a second data line of a plurality of data lines of a data driving circuit in the display apparatus to generate an output buffer control signal, and outputting output signals from at least one amplifier of a plurality of amplifiers of an output buffer in the data driving circuit to the first data line and the second data line, where the at least one amplifier is selected based on the output buffer control signal.Type: ApplicationFiled: October 21, 2011Publication date: July 26, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang-Gon LEE, Ock-Jin KIM, Yong-Soon LEE, Chang-Sin KIM
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Publication number: 20120169578Abstract: A display panel includes a plurality of data lines, a plurality of gate lines, a plurality of dummy loads, a pad portion and a fanout portion. The data lines are disposed in a display area, on which a plurality of pixels are disposed. The gate lines are disposed in the display area and cross the data lines. The dummy loads are disposed in a peripheral area surrounding the display area. The pad portion is disposed in the peripheral area and includes signal pads and dummy pads. The fanout portion includes a first fanout line portion connecting the data lines to the signal pads, and a second fanout line portion connecting the dummy loads to the dummy pads.Type: ApplicationFiled: August 18, 2011Publication date: July 5, 2012Inventors: Chang-Sin Kim, Byeong-Doo Kang, Yong-Soon Lee, Ock-Jin Kim, Sang-Gon Lee