Patents by Inventor Yong-Won Jo
Yong-Won Jo 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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Publication number: 20240081099Abstract: An organic light emitting diode display according to an exemplary embodiment includes: a substrate; a first buffer layer on the substrate; a first semiconductor layer on the first buffer layer; a first gate insulating layer on the first semiconductor layer; a first gate electrode and a blocking layer on the first gate insulating layer; a second buffer layer on the first gate electrode; a second semiconductor layer on the second buffer layer; a second gate insulating layer on the second semiconductor layer; and a second gate electrode on the second gate insulating layer.Type: ApplicationFiled: November 9, 2023Publication date: March 7, 2024Applicant: Samsung Display Co., Ltd.Inventors: Joon Woo BAE, So Young KOO, Han Bit KIM, Thanh Tien NGUYEN, Kyoung Won LEE, Yong Su LEE, Jae Seob LEE, Gyoo Chul JO
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Patent number: 11430368Abstract: Disclosed herein are a data driving device and a display device using the same. The data driving device includes a selector for sequentially selecting pieces of gamma reference data input from banks in the order of a first color, a second color, and a third color, and a voltage output part for converting the pieces of gamma reference data for each color, which is sequentially input, into gamma reference voltages.Type: GrantFiled: August 18, 2021Date of Patent: August 30, 2022Assignee: LG Display Co., Ltd.Inventors: Dae Seok Oh, Yong Won Jo
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Patent number: 11423821Abstract: A data driving circuit includes a first voltage divider circuit configured to output a gamma compensation voltage for a first color, a second voltage divider circuit configured to output a gamma compensation voltage for a second color, a third voltage divider circuit configured to output a gamma compensation voltage for a third color, a first digital-to-analog converter (DAC) configured to convert input data for the first color using the gamma compensation voltage for the first color to output a data voltage of a first channel, a second DAC configured to convert input data for the second color using the gamma compensation voltage for the second color to output a data voltage of a second channel, and a third DAC configured to convert input data for the third color using the gamma compensation voltage for the third color to output a data voltage of a third channel.Type: GrantFiled: May 13, 2021Date of Patent: August 23, 2022Assignee: LG Display Co., Ltd.Inventors: Dae Seok Oh, Yong Won Jo, Yong Woo Yun
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Patent number: 11341933Abstract: Disclosed herein are a foldable display and a driving method thereof which activate an entirety of a screen of a flexible display panel and display an image on a maximum screen when the flexible display panel is unfolded in an unfolded state, and activate a part of the screen when the flexible display panel is folded in a folded state to display the image on a screen that is smaller than the maximum screen and to display a black color on a deactivated screen.Type: GrantFiled: April 30, 2020Date of Patent: May 24, 2022Assignee: LG Display Co., Ltd.Inventors: Seung Hwan Shin, Yong Won Jo, Jin Woo Jung
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Publication number: 20220068184Abstract: Disclosed herein are a data driving device and a display device using the same. The data driving device includes a selector for sequentially selecting pieces of gamma reference data input from banks in the order of a first color, a second color, and a third color, and a voltage output part for converting the pieces of gamma reference data for each color, which is sequentially input, into gamma reference voltages.Type: ApplicationFiled: August 18, 2021Publication date: March 3, 2022Inventors: Dae Seok Oh, Yong Won Jo
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Patent number: 11217178Abstract: Disclosed herein is a display which activates a maximum screen which is an entirety of a screen of a flexible display panel to display an image thereon in an unfolded state of the flexible display panel and activates a part of the screen in a folded state of the flexible display panel so that the activated screen that is smaller than the maximum screen displays the image and a deactivated screen displays black.Type: GrantFiled: June 2, 2020Date of Patent: January 4, 2022Assignee: LG DISPLAY CO., LTD.Inventors: Dae Seok Oh, Yong Won Jo, Myung Jong Park
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Publication number: 20210366343Abstract: A data driving circuit includes a first voltage divider circuit configured to output a gamma compensation voltage for a first color, a second voltage divider circuit configured to output a gamma compensation voltage for a second color, a third voltage divider circuit configured to output a gamma compensation voltage for a third color, a first digital-to-analog converter (DAC) configured to convert input data for the first color using the gamma compensation voltage for the first color to output a data voltage of a first channel, a second DAC configured to convert input data for the second color using the gamma compensation voltage for the second color to output a data voltage of a second channel, and a third DAC configured to convert input data for the third color using the gamma compensation voltage for the third color to output a data voltage of a third channel.Type: ApplicationFiled: May 13, 2021Publication date: November 25, 2021Inventors: Dae Seok OH, Yong Won JO, Yong Woo YUN
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Publication number: 20200388228Abstract: Disclosed herein is a display which activates a maximum screen which is an entirety of a screen of a flexible display panel to display an image thereon in an unfolded state of the flexible display panel and activates a part of the screen in a folded state of the flexible display panel so that the activated screen that is smaller than the maximum screen displays the image and a deactivated screen displays black.Type: ApplicationFiled: June 2, 2020Publication date: December 10, 2020Applicant: LG DISPLAY CO., LTD.Inventors: Dae Seok OH, Yong Won JO, Myung Jong PARK
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Publication number: 20200357362Abstract: Disclosed herein are a foldable display and a driving method thereof which activate an entirety of a screen of a flexible display panel and display an image on a maximum screen when the flexible display panel is unfolded in an unfolded state, and activate a part of the screen when the flexible display panel is folded in a folded state to display the image on a screen that is smaller than the maximum screen and to display a black color on a deactivated screen.Type: ApplicationFiled: April 30, 2020Publication date: November 12, 2020Inventors: Seung Hwan SHIN, Yong Won JO, Jin Woo JUNG
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Patent number: 10809833Abstract: A fingerprint sensor includes: a plurality of sensing electrodes provided on one surface of a base substrate, the plurality of sensing electrodes being arranged in a matrix form; and a ground electrode provided on the other surface of the base substrate. The ground electrode includes: a plurality of first lines extending in one direction, the plurality of first lines being parallel to one another; and a plurality of second lines extending in a direction intersecting the first lines, the plurality of second lines being parallel to one another. In a plan view, the first lines and the second lines are provided between adjacent sensing electrodes.Type: GrantFiled: October 16, 2018Date of Patent: October 20, 2020Assignee: Samsung Display Co., Ltd.Inventors: Yong Won Jo, Su Yul Seo, Yu Jin Choi, Sung Sik Yun
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Patent number: 10592055Abstract: A touch sensing apparatus including: a touch panel including a first electrode and a second electrode; a driver configured to apply a driving signal to the first electrode; a touch sensor configured to receive a signal transferred depending on the driving signal from the second electrode, and to convert and output the signal as a sensing signal; and a touch controller configured to detect the sensing signal. The touch panel further includes a third electrode and a fourth electrode which transfer noise signals having different magnitudes to the touch sensor, and the touch sensor outputs the sensing signal by using a difference in the noise signals and the signal.Type: GrantFiled: January 15, 2018Date of Patent: March 17, 2020Assignee: Samsung Display Co., Ltd.Inventors: Dong-Hoon Lee, Byung Sun Kim, Jeong Kyoo Kim, Sun Haeng Cho, Yong Won Jo, Jae Hyung Cho
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Publication number: 20190204969Abstract: A fingerprint sensor includes: a plurality of sensing electrodes provided on one surface of a base substrate, the plurality of sensing electrodes being arranged in a matrix form; and a ground electrode provided on the other surface of the base substrate. The ground electrode includes: a plurality of first lines extending in one direction, the plurality of first lines being parallel to one another; and a plurality of second lines extending in a direction intersecting the first lines, the plurality of second lines being parallel to one another. In a plan view, the first lines and the second lines are provided between adjacent sensing electrodes.Type: ApplicationFiled: October 16, 2018Publication date: July 4, 2019Inventors: Yong Won JO, Su Yul SEO, Yu Jin CHOI, Sung Sik YUN
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Publication number: 20190102002Abstract: A touch sensing apparatus including: a touch panel including a first electrode and a second electrode; a driver configured to apply a driving signal to the first electrode; a touch sensor configured to receive a signal transferred depending on the driving signal from the second electrode, and to convert and output the signal as a sensing signal; and a touch controller configured to detect the sensing signal. The touch panel further includes a third electrode and a fourth electrode which transfer noise signals having different magnitudes to the touch sensor, and the touch sensor outputs the sensing signal by using a difference in the noise signals and the signal.Type: ApplicationFiled: January 15, 2018Publication date: April 4, 2019Inventors: Dong-Hoon LEE, Byung Sun KIM, Jeong Kyoo KIM, Sun Haeng CHO, Yong Won JO, Jae Hyung CHO
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Patent number: 9324284Abstract: There is provided a driving method of a liquid crystal display device that is driven by an inversion method, including: calculating a total sum of changed amounts of data voltages between an (n?1)-th row line and an n-th row line, using image data of the (n?1)-th row line and image data of the n-th row line; generating common voltage data according to the total sum of the changed amounts of the data voltages; compensating for the common voltage data using a characteristic parameter of a liquid crystal panel; and generating a common voltage according to the compensated common voltage data, and outputting the common voltage to the liquid crystal panel.Type: GrantFiled: December 27, 2012Date of Patent: April 26, 2016Assignee: LG DISPLAY CO., LTD.Inventors: Kyung-Rok Kim, Yong-Won Jo
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Publication number: 20140092077Abstract: There is provided a driving method of a liquid crystal display device that is driven by an inversion method, including: calculating a total sum of changed amounts of data voltages between an (n?1)-th row line and an n-th row line, using image data of the (n?1)-th row line and image data of the n-th row line; generating common voltage data according to the total sum of the changed amounts of the data voltages; compensating for the common voltage data using a characteristic parameter of a liquid crystal panel; and generating a common voltage according to the compensated common voltage data, and outputting the common voltage to the liquid crystal panel.Type: ApplicationFiled: December 27, 2012Publication date: April 3, 2014Applicant: LG DISPLAY CO., LTD.Inventors: Kyung-Rok KIM, Yong-Won JO
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Patent number: 8519943Abstract: A liquid crystal display device includes a first data line and a second data line, the first and second data lines substantially parallel to one another, a first gate line, the first gate line crossing the first data line and the second data line, a display sub-pixel defined by the crossing of the first gate line and the first data line, a sensing sub-pixel defined by the crossing of the first gate line and the second data line, and a first switching element for connecting the second data line connected to one of a sensing processing unit and a ground terminal, wherein the display sub-pixel transmits light supplied from a light source in accordance to a data signal applied to the first data line, and the sensing sub-pixel senses light incident on the liquid crystal display device and generates charges corresponding to the sensed light.Type: GrantFiled: May 11, 2007Date of Patent: August 27, 2013Assignee: LG Display Co., Ltd.Inventors: Cheung-Hwan An, Yong-Won Jo
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Publication number: 20080158120Abstract: A liquid crystal display device includes a first data line and a second data line, the first and second data lines substantially parallel to one another, a first gate line, the first gate line crossing the first data line and the second data line, a display sub-pixel defined by the crossing of the first gate line and the first data line, a sensing sub-pixel defined by the crossing of the first gate line and the second data line, and a first switching element for connecting the second data line connected to one of a sensing processing unit and a ground terminal, wherein the display sub-pixel transmits light supplied from a light source in accordance to a data signal applied to the first data line, and the sensing sub-pixel senses light incident on the liquid crystal display device and generates charges corresponding to the sensed light.Type: ApplicationFiled: May 11, 2007Publication date: July 3, 2008Applicant: LG.PHILIPS LCD CO., LTD.Inventors: Cheung-Hwan An, Yong-Won Jo