Patents by Inventor Sang-Kwon Ha
Sang-Kwon Ha 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: 9710083Abstract: A liquid crystal display integrated with a touch sensor includes a first substrate including pixels connected to gate wires and data wires, a second substrate positioned to face the first substrate, a plurality of common electrodes corresponding to the pixels, a plurality of sensing electrodes on the second substrate, a liquid crystal layer between the first substrate and the second substrate, a gate drive unit driven corresponding to a gate control signal and configured to supply a gate signal to the pixels through the gate wires, a common electrode drive unit configured to supply a touch driving signal to the common electrodes during a touch driving period, and a control unit configured to supply a gate control signal synchronized with the touch driving signal to the gate drive unit.Type: GrantFiled: September 11, 2013Date of Patent: July 18, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin-Woo Park, Sang-Jin Pak, Sang-Kwon Ha, Ji-Gong Lee, Hideo Yoshimura
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Patent number: 9336562Abstract: A data processing method that includes: detecting a maximum data cell having a maximum value and a minimum data cell having a minimum value in a compression unit cell; converting the maximum data cell and the minimum data cell into a non-compressed data format; converting remaining data cells of the compression unit cell except for the maximum and minimum data cells into a compressed data format; and generating stream data in which the converted data cells are arranged, wherein the non-compressed data format and the compressed data format include a header field with different values and the non-compressed data format includes a data field corresponding to the value of the converted maximum or minimum data cell.Type: GrantFiled: October 23, 2013Date of Patent: May 10, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ji-Gong Lee, Jin-Woo Park, Sang-Kwon Ha
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Patent number: 9224330Abstract: A display device includes a display panel and a timing controller. The display panel includes a plurality of pixels, and the timing controller determines a driving method that includes a first sub-frame arrangement method and a second sub-frame arrangement method. An arrangement of weight values of a plurality of sub-frames of the second sub-frame arrangement method is given in an opposite order from an arrangement of weight values of a plurality of sub-frames of the first sub-frame arrangement method. The timing controller applies the first sub-frame arrangement method to a first pixel among the pixels, and applies the second sub-frame arrangement method to a second pixel that is disposed next to the first pixel.Type: GrantFiled: January 22, 2014Date of Patent: December 29, 2015Assignee: Samsung Display Co., Ltd.Inventors: Jin-Woo Park, Sang-Jin Pak, Ji-Gong Lee, Sang-Kwon Ha, Su-min Yang
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Patent number: 9189100Abstract: A touch screen panel is disclosed. The touch screen panel includes a pixel unit, a touch sensing unit, and a data driver configured to provide data voltages to the pixel unit and to provide driving signals to the touch sensing unit.Type: GrantFiled: April 24, 2012Date of Patent: November 17, 2015Assignee: Samsung Display Co., Ltd.Inventors: Sang-Kwon Ha, Joo-Hyung Lee, Sang-Jin Pak, Ji-Gong Lee, Hee-Chul Hwang
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Patent number: 9183615Abstract: A display device includes a driver connected to a display panel and transmitting scan signals or data signals to the display panel, a frame memory connected to the driver, storing image data and transmitting at least some of the image data to the driver, and a controller connected to the driver and the frame memory, generating a control signal and transmitting the control signal to the driver or the frame memory, wherein each of the sub-fields includes an address period in which the scan signals are transmitted to the respective pixel rows, the controller transmits the control signal to the driver to transmit the scan signals to the pixel rows during a current frame such that the scan signals corresponding to the current frame are transmitted after, among the image data corresponding to the current frame, the image data corresponding to the pixel rows are stored in the frame memory.Type: GrantFiled: March 14, 2013Date of Patent: November 10, 2015Assignee: Samsung Display Co., Ltd.Inventors: Ji Gong Lee, Sang Jin Pak, Hideo Yoshimura, Sang Kwon Ha
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Patent number: 9165504Abstract: A method of controlling a dimming operation of an organic light emitting display device that includes an organic light emitting element, a first transistor connected to a data line and a gate line, and a second transistor connected to the first transistor and the organic light emitting element, is provided. By the method, image data is compensated using a plurality of look-up tables respectively corresponding to a plurality of dimming modes, to be outputted compensation data. The compensation data are converted to a data voltage to be provided the organic light emitting element with the data voltage. A level of a current applied to the organic light emitting element is adjusted according to the dimming.Type: GrantFiled: December 16, 2013Date of Patent: October 20, 2015Assignee: Samsung Display Co., Ltd.Inventor: Sang-Kwon Ha
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Publication number: 20140347381Abstract: A data processing method that includes: detecting a maximum data cell having a maximum value and a minimum data cell having a minimum value in a compression unit cell; converting the maximum data cell and the minimum data cell into a non-compressed data format; converting remaining data cells of the compression unit cell except for the maximum and minimum data cells into a compressed data format; and generating stream data in which the converted data cells are arranged, wherein the non-compressed data format and the compressed data format include a header field with different values and the non-compressed data format includes a data field corresponding to the value of the converted maximum or minimum data cell.Type: ApplicationFiled: October 23, 2013Publication date: November 27, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Ji-Gong Lee, Jin-Woo Park, Sang-Kwon Ha
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Patent number: 8891048Abstract: A liquid crystal display (LCD) with an integrated touch screen panel includes a plurality of pixels connected to a plurality of data lines and a plurality of gate lines, the gate lines being divided into a plurality of groups, a plurality of sensing electrodes, a plurality of common electrodes divided into a plurality of groups, a common electrode driver configured to simultaneously supply a driving signal to common electrodes within each group of the plurality of groups of the common electrodes, and to sequentially supply the driving signal to the plurality of groups of the common electrodes, and a gate driver configured to sequentially supply a gate signal to gate lines within each of the plurality of group of the gate lines.Type: GrantFiled: September 21, 2011Date of Patent: November 18, 2014Assignee: Samsung Display Co., Ltd.Inventors: Jin-Woo Park, Sang-Jin Pak, Jin-Hee Lee, Sang-Kwon Ha, Ji-Gong Lee, Hideo Yoshimura, Cheol-Min Kim, Joo-Hyung Lee
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Publication number: 20140313245Abstract: A display device includes a display panel and a timing controller. The display panel includes a plurality of pixels, and the timing controller determines a driving method that includes a first sub-frame arrangement method and a second sub-frame arrangement method. An arrangement of weight values of a plurality of sub-frames of the second sub-frame arrangement method is given in an opposite order from an arrangement of weight values of a plurality of sub-frames of the first sub-frame arrangement method. The timing controller applies the first sub-frame arrangement method to a first pixel among the pixels, and applies the second sub-frame arrangement method to a second pixel that is disposed next to the first pixel.Type: ApplicationFiled: January 22, 2014Publication date: October 23, 2014Inventors: Jin-Woo Park, Sang-Jin Pak, Ji-Gong Lee, Sang-Kwon Ha, Su-min Yang
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Publication number: 20140192103Abstract: A method of controlling a dimming operation of an organic light emitting display device that includes an organic light emitting element, a first transistor connected to a data line and a gate line, and a second transistor connected to the first transistor and the organic light emitting element, is provided. By the method, image data is compensated using a plurality of look-up tables respectively corresponding to a plurality of dimming modes, to be outputted compensation data. The compensation data are converted to a data voltage to be provided the organic light emitting element with the data voltage. A level of a current applied to the organic light emitting element is adjusted according to the dimming.Type: ApplicationFiled: December 16, 2013Publication date: July 10, 2014Inventor: Sang-Kwon Ha
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Publication number: 20140184533Abstract: A liquid crystal display integrated with a touch sensor includes a first substrate including pixels connected to gate wires and data wires, a second substrate positioned to face the first substrate, a plurality of common electrodes corresponding to the pixels, a plurality of sensing electrodes on the second substrate, a liquid crystal layer between the first substrate and the second substrate, a gate drive unit driven corresponding to a gate control signal and configured to supply a gate signal to the pixels through the gate wires, a common electrode drive unit configured to supply a touch driving signal to the common electrodes during a touch driving period, and a control unit configured to supply a gate control signal synchronized with the touch driving signal to the gate drive unit.Type: ApplicationFiled: September 11, 2013Publication date: July 3, 2014Applicant: Samsung Display Co., Ltd.Inventors: Jin-Woo PARK, Sang-Jin PAK, Sang-Kwon HA, Ji-Gong LEE, Hideo YOSHIMURA
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Patent number: 8749505Abstract: A touch screen panel includes a display unit including a timing controller for receiving a vertical synchronizing signal and a horizontal synchronizing signal to display an image, a touch sensing unit including driving electrodes, a control signal generator for generating a control signal from the vertical synchronizing signal and the horizontal synchronizing signal, and a touch controller for supplying a driving signal to the touch sensing unit in response to the control signal from the control signal generator.Type: GrantFiled: October 28, 2011Date of Patent: June 10, 2014Assignee: Samsung Display Co., Ltd.Inventors: Sang-Kwon Ha, Joo-Hyung Lee, Jin-Woo Park, Sang-Jin Pak, Ji-Gong Lee, Hideo Yoshimura
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Publication number: 20140152716Abstract: A display device and a driving method thereof for reducing power consumption. The display device includes a plurality of pixels positioned at intersection portions of gate lines and data lines; a gate driver selectively driving the gate lines; a data driver supplying, to the data lines, data corresponding to the gate line selected from the gate lines; and a timing controller controlling the gate drive and the data driver. In the display device, the timing controller includes an order determination unit that compares data for each gate line and determines a driving order of the gate lines.Type: ApplicationFiled: June 13, 2013Publication date: June 5, 2014Inventors: Ji-Gong Lee, Hideo Yoshimura, Sang-Jin Pak, Sang-Kwon Ha
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Publication number: 20140085322Abstract: A display device includes a driver connected to a display panel and transmitting scan signals or data signals to the display panel, a frame memory connected to the driver, storing image data and transmitting at least some of the image data to the driver, and a controller connected to the driver and the frame memory, generating a control signal and transmitting the control signal to the driver or the frame memory, wherein each of the sub-fields includes an address period in which the scan signals are transmitted to the respective pixel rows, the controller transmits the control signal to the driver to transmit the scan signals to the pixel rows during a current frame such that the scan signals corresponding to the current frame are transmitted after, among the image data corresponding to the current frame, the image data corresponding to the pixel rows are stored in the frame memory.Type: ApplicationFiled: March 14, 2013Publication date: March 27, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Ji Gong Lee, Sang Jin Pak, Hideo Yoshimura, Sang Kwon Ha
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Publication number: 20120313866Abstract: A touch screen panel is disclosed. The touch screen panel includes a pixel unit, a touch sensing unit, and a data driver configured to provide data voltages to the pixel unit and to provide driving signals to the touch sensing unit.Type: ApplicationFiled: April 24, 2012Publication date: December 13, 2012Applicant: Samsung Mobile Display Co., Ltd.Inventors: Sang-Kwon Ha, Joo-Hyung Lee, Sang-Jin Pak, Ji-Gong Lee, Hee-Chul Hwang
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Publication number: 20120206383Abstract: A touch screen panel includes a display unit including a timing controller for receiving a vertical synchronizing signal and a horizontal synchronizing signal to display an image, a touch sensing unit including driving electrodes, a control signal generator for generating a control signal from the vertical synchronizing signal and the horizontal synchronizing signal, and a touch controller for supplying a driving signal to the touch sensing unit in response to the control signal from the control signal generator.Type: ApplicationFiled: October 28, 2011Publication date: August 16, 2012Inventors: Sang-Kwon HA, Joo-Hyung Lee, Jin-Woo Park, Sang-Jin Pak, Ji-Gong Lee, Hideo Yoshimura
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Publication number: 20120105752Abstract: A liquid crystal display (LCD) with an integrated touch screen panel includes a plurality of pixels connected to a plurality of data lines and a plurality of gate lines, the gate lines being divided into a plurality of groups, a plurality of sensing electrodes, a plurality of common electrodes divided into a plurality of groups, a common electrode driver configured to simultaneously supply a driving signal to common electrodes within each group of the plurality of groups of the common electrodes, and to sequentially supply the driving signal to the plurality of groups of the common electrodes, and a gate driver configured to sequentially supply a gate signal to gate lines within each of the plurality of group of the gate lines.Type: ApplicationFiled: September 21, 2011Publication date: May 3, 2012Inventors: Jin-Woo Park, Sang-Jin Pak, Jin-Hee Lee, Sang-Kwon Ha, Ji-Gong Lee, Hideo Yoshimura, Cheol-Min Kim, Joo-Hyung Lee
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Publication number: 20120044171Abstract: A touch screen panel integrated liquid crystal display device in which a mutual capacitive touch screen panel is integrated with a liquid crystal display panel is provided. The device includes a first substrate, a plurality of pixels on the first substrate and including respective pixel electrodes, a second substrate facing the first substrate, a common electrode on a first surface of the second substrate facing the pixel electrodes, a plurality of sensor electrodes on a second surface of the second substrate and including a plurality of transparent pairs extending in a first direction and having a plurality of protrusions extending in a second direction crossing the first direction, and a liquid crystal layer between the substrates, wherein the device senses a touch position by detecting a change of capacitance applied to the sensor electrodes corresponding to an alternating current common voltage applied to the common electrode.Type: ApplicationFiled: June 24, 2011Publication date: February 23, 2012Inventors: Jin-Hee Lee, Sang-Jin Pak, Hideo Yoshimura, Bum-Joon Kim, Sang-Kwon Ha, Jin-Woo Park, Joo-Hyung Lee