Patents by Inventor Ji-An Gong
Ji-An Gong 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: 11597796Abstract: An ionic aqueous epoxy curing agent, a preparation method therefor and the use thereof. The aqueous epoxy curing agent is prepared by reacting the following raw materials in parts by weight: a) 1 part of a polyepoxy compound, b) 1.3-6 parts of a multifunctional compound, c) 0.2 to 1.25 parts of a monoepoxy compound, and d) 0.01 to 0.23 parts of a sultone, wherein the multifunctional compound has four or more active hydrogens. The curing agent obtained has a good hydrophilic effect and very good thinning performance, the paint film prepared by mixing same with an epoxy dispersion has the following advantages: excellent salt spray resistance and water resistance, strong adhesion, high hardness, etc.; in addition, the preparation process of the curing agent is simple, the conditions are mild, and room temperature curing is carried out.Type: GrantFiled: April 19, 2019Date of Patent: March 7, 2023Assignees: WANHUA CHEMICAL GROUP CO., LTD., WANHUA CHEMICAL (NINGBO) CO., LTD.Inventors: Xiao Wang, Xueshun Ji, Weifei Li, Rui Qu, Chengbin Zhang, Junying Deng, Jiakuan Sun, Bin Zhou, Qiao Wang, Ji Gong
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Publication number: 20220033569Abstract: An ionic aqueous epoxy curing agent, a preparation method therefor and the use thereof. The aqueous epoxy curing agent is prepared by reacting the following raw materials in parts by weight: a) 1 part of a polyepoxy compound, b) 1.3-6 parts of a multifunctional compound, c) 0.2 to 1.25 parts of a monoepoxy compound, and d) 0.01 to 0.23 parts of a sultone, wherein the multifunctional compound has four or more active hydrogens. The curing agent obtained has a good hydrophilic effect and very good thinning performance, the paint film prepared by mixing same with an epoxy dispersion has the following advantages: excellent salt spray resistance and water resistance, strong adhesion, high hardness, etc.; in addition, the preparation process of the curing agent is simple, the conditions are mild, and room temperature curing is carried out.Type: ApplicationFiled: April 19, 2019Publication date: February 3, 2022Inventors: Xiao WANG, Xueshun JI, Weifei LI, Rui QU, Chengbin ZHANG, Junying DENG, Jiakuan SUN, Bin ZHOU, Qiao WANG, Ji GONG
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Patent number: 9766730Abstract: A method for converting a driving frequency of a touch panel includes receiving a control signal for a display porch time, changing the display porch time based on the control signal, changing a cycle of the horizontal synchronizing signal based on the changed display porch time, and generating a touch driving signal synchronized with the horizontal synchronizing signal.Type: GrantFiled: February 25, 2015Date of Patent: September 19, 2017Assignee: Samsung Display Co., Ltd.Inventor: Ji Gong Lee
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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: 9563294Abstract: A method of operating a touch panel including a plurality of driving lines and a plurality of sensing lines includes performing a first limited scan by activating only a first portion of the plurality of driving lines and only a first portion of the plurality of sensing lines, such that a first coarse position of a first touch by a user is detected, and performing a first local scan by activating only driving lines and sensing lines adjacent to the detected first coarse position of the first touch, such that a first fine position of the first touch by the user is detected.Type: GrantFiled: November 21, 2012Date of Patent: February 7, 2017Assignee: Samsung Display Co., Ltd.Inventor: Ji-Gong Lee
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Patent number: 9501968Abstract: An organic light emitting display includes: a display region including: a plurality of data lines, a plurality of scan lines, and a plurality of pixels coupled to corresponding ones of the data lines and corresponding ones of the scan lines; a timing controller configured to: divide input data into frames, select a set of a plurality of subfields having different time-weighted values for a plurality of gray levels of the input data to generate conversion data, and convert the input data into image data based on the conversion data; a scan driver configured to supply a plurality of scan signals to the scan lines; and a data driver configured to generate a plurality of data signals using the image data and to supply the data signals to the data lines.Type: GrantFiled: August 20, 2013Date of Patent: November 22, 2016Assignee: Samsung Display Co., Ltd.Inventors: Ji-Gong Lee, Sang-Jin Pak, Jin-Woo Park
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Patent number: 9501971Abstract: The described technology relates generally to an organic light emitting display and a method for driving the same. According to an exemplary embodiment, an image is displayed by dividing one frame into a plurality of sub-fields, and a gamma curve is realized with a combination of a plurality of sub-fields respectively corresponding to a plurality of grays of image data so that image data can be compensated without adding a memory. In addition, the embodiment can extract the one combination by setting a combination of sub-fields that exceeds one frame time among the plurality of sub-fields to be an exception condition.Type: GrantFiled: January 13, 2014Date of Patent: November 22, 2016Assignee: Samsung Display Co., Ltd.Inventor: Ji-Gong Lee
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Publication number: 20160202830Abstract: A touch screen panel includes a display unit including a pixel unit and a timing controller, the display unit configured to implement an image by using the timing controller to receive a synchronization signal comprising a horizontal synchronization signal, wherein the timing controller is configured to control the generation of data signals, a touch panel, and a touch controller configured to generate and supply a driving signal to the touch panel in response to wirelessly receiving the horizontal synchronization signal from the display unit.Type: ApplicationFiled: October 8, 2015Publication date: July 14, 2016Inventor: Ji-Gong LEE
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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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Publication number: 20160077617Abstract: A method for converting a driving frequency of a touch panel includes receiving a control signal for a display porch time, changing the display porch time based on the control signal, changing a cycle of the horizontal synchronizing signal based on the changed display porch time, and generating a touch driving signal synchronized with the horizontal synchronizing signal.Type: ApplicationFiled: February 25, 2015Publication date: March 17, 2016Inventor: Ji Gong LEE
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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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Publication number: 20150193905Abstract: A method of processing data in a display device for displaying an image is disclosed. In one aspect, the method includes: dividing the data elements of an image data into sections based on the distribution of the data elements; then generating a header for each section; compressing each data element to a compressed data element by using an offset specific to the section including the data element, an interval of the section including the data element and the header for that section; and generating an image data signal for displaying the image using the compressed data element.Type: ApplicationFiled: December 22, 2014Publication date: July 9, 2015Inventors: Ji Gong Lee, Min Seok Bae, Su Min Yang
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Publication number: 20150116303Abstract: A display device includes: pixels at areas defined by gate lines and data lines; a gate driver configured to selectively drive the gate lines; a data driver configured to generate data signals set to various voltages, using data to be supplied to the gate lines, and to supply the data signals to the data lines; a timing controller configured to control the gate driver and the data driver; and an order setting unit configured to set a driving order of the gate lines by comparing information values of the gate lines.Type: ApplicationFiled: October 27, 2014Publication date: April 30, 2015Inventors: Ji-Gong Lee, Jin-Woo Park, Hideo Yoshimura
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Publication number: 20150054721Abstract: The described technology relates generally to an organic light emitting display and a method for driving the same. According to an exemplary embodiment, an image is displayed by dividing one frame into a plurality of sub-fields, and a gamma curve is realized with a combination of a plurality of sub-fields respectively corresponding to a plurality of grays of image data so that image data can be compensated without adding a memory. In addition, the embodiment can extract the one combination by setting a combination of sub-fields that exceeds one frame time among the plurality of sub-fields to be an exception condition.Type: ApplicationFiled: January 13, 2014Publication date: February 26, 2015Applicant: Samsung Display Co., Ltd.Inventor: Ji-Gong LEE
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Publication number: 20150049133Abstract: A method of displaying a stereoscopic image for an organic light emitting display device that selectively displays a planar image and the stereoscopic image using a digital driving technique. A display mode is set to be a stereoscopic image display mode, a left image frame is divided into a left black data period and a left real data period, a right image frame is divided into a right black data period and a right real data period, and the left image frame and the right image frame are synchronized with a left shutter and a right shutter of shutter glasses, respectively. The left real data period is set to be longer than the left black data period, and the right real data period is set to be longer than the right black data period.Type: ApplicationFiled: August 7, 2014Publication date: February 19, 2015Inventors: Yang-Hwa CHOI, Ji-Gong Lee
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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