Patents by Inventor Il Hyun Yun

Il Hyun Yun 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).

  • Patent number: 11145696
    Abstract: A passive matrix organic light emitting diode (PMOLED) display which includes a plurality of lower electrode patterns arranged in parallel, a plurality of transparent electrode patterns arranged in parallel in a direction and being perpendicular to the lower electrode pattern, and an organic compound layer interposed between the lower electrode pattern and the transparent electrode pattern and by time-sharing control period into a display control period and a touch sensor control period for each display frame to implement image output and touch sensing; the display includes: a plurality of mutual electrode patterns provided to the vicinity of a display area defined by the lower electrode pattern and the transparent electrode pattern; a display driving circuit; a multiplexer; and a touch driving circuit connected to the lower electrode pattern or the transparent electrode pattern through the multiplexer in the touch sensor control period.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: October 12, 2021
    Assignee: Solomon Systech (Shenzhen) Ltd.
    Inventors: Hong Jae Jang, Hyung-Cheol Shin, Il-Hyun Yun, Wai Hon Ng, Pui Yuen Lam
  • Patent number: 10732748
    Abstract: A PMOLED display includes a plurality of lower electrode patterns arranged in parallel in the x-axis direction, a plurality of transparent electrode patterns arranged in parallel in the y-axis direction and being perpendicular to the lower electrode patterns, and an organic compound layer interposed between the lower electrode patterns and the transparent electrode patterns. A display output and a touch sensing is performed by time-sharing a control period for the lower electrode patterns and the transparent electrode patterns into a display control period and a touch-sensor control period in every display frame time. The PMOLED display includes a driving node formed on a line for communication between the transparent electrode patterns and a display driving circuit, a touch-sensing unit connecting the driving node and a touch-sensing circuit; and a plurality of metal electrode patterns provided between the transparent electrode patterns to have a length shorter than the transparent electrode patterns.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: August 4, 2020
    Assignee: Soloman Systech (Shenzhen) Limited
    Inventors: Hong Jae Jang, Hyung-Cheol Shin, Il-Hyun Yun, Wah Chi Raymond Wang, Johnkid Lo, King Ho Cheung, Yip Fai Li
  • Patent number: 10707279
    Abstract: Provided is a method of sensing an illuminance in a passive matrix organic light emitting diode display, the display including a plurality of lower electrode patterns arranged in parallel, a plurality of transparent electrode patterns arranged in parallel and being perpendicular to the lower electrode patterns, and an organic compound layer interposed between the lower electrode pattern and the transparent electrode pattern, the method comprising steps of: (a) forming a predetermined voltage difference between at least one electrode patterns of the transparent electrode patterns as anodes and the lower electrode patterns as cathodes; (b) measuring the magnitude of current formed by the transparent electrode pattern and the lower electrode pattern in the step (a); and (c) measuring an illuminance using the measured current, in which a voltage supplied to the lower electrode pattern is relatively higher than that of the transparent electrode pattern in the step (a).
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: July 7, 2020
    Assignee: Solomon Systech (Shenzhen) Limited
    Inventors: Hong Jae Jang, Hyung-Cheol Shin, Il-Hyun Yun, Wai Hon Ng, Yi Nok Chan, King Ho Cheung, Yip Fai Li
  • Patent number: 10678360
    Abstract: A method of controlling a PMOLED display, which includes a plurality of lower electrode patterns arranged in parallel, a plurality of transparent electrode patterns arranged in parallel and being perpendicular to the lower electrode patterns, and an organic compound layer interposed between lower electrode patterns and transparent electrode patterns, to perform a display output and touch sensing by time-sharing a control period for the lower electrode patterns and the transparent electrode patterns into a display control period and a touch-sensor control period in every display frame time, including providing a driving node formed on a line for communication between the transparent electrode patterns and a display driving circuit and a touch sensing unit connecting the driving node and a touch sensing circuit; performing the display output by connecting the transparent electrode patterns and the display driving circuit in the display control period; and performing the touch sensing by connecting the transpare
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: June 9, 2020
    Assignee: Solomon Systech (Shenzhen) Limited
    Inventors: Hong Jae Jang, Hyung-Cheol Shin, Il-Hyun Yun
  • Publication number: 20200161381
    Abstract: A passive matrix organic light emitting diode (PMOLED) display which includes a plurality of lower electrode patterns arranged in parallel, a plurality of transparent electrode patterns arranged in parallel in a direction and being perpendicular to the lower electrode pattern, and an organic compound layer interposed between the lower electrode pattern and the transparent electrode pattern and by time-sharing control period into a display control period and a touch sensor control period for each display frame to implement image output and touch sensing; the display includes: a plurality of mutual electrode patterns provided to the vicinity of a display area defined by the lower electrode pattern and the transparent electrode pattern; a display driving circuit; a multiplexer; and a touch driving circuit connected to the lower electrode pattern or the transparent electrode pattern through the multiplexer in the touch sensor control period.
    Type: Application
    Filed: October 24, 2019
    Publication date: May 21, 2020
    Inventors: Hong Jae Jang, Hyung-Cheol Shin, Il-Hyun Yun, Wai Hon Ng, Pui Yuen Lam
  • Publication number: 20190102024
    Abstract: A PMOLED display includes a plurality of lower electrode patterns arranged in parallel in the x-axis direction, a plurality of transparent electrode patterns arranged in parallel in the y-axis direction and being perpendicular to the lower electrode patterns, and an organic compound layer interposed between the lower electrode patterns and the transparent electrode patterns. A display output and a touch sensing is performed by time-sharing a control period for the lower electrode patterns and the transparent electrode patterns into a display control period and a touch-sensor control period in every display frame time. The PMOLED display includes a driving node formed on a line for communication between the transparent electrode patterns and a display driving circuit, a touch-sensing unit connecting the driving node and a touch-sensing circuit; and a plurality of metal electrode patterns provided between the transparent electrode patterns to have a length shorter than the transparent electrode patterns.
    Type: Application
    Filed: September 26, 2018
    Publication date: April 4, 2019
    Inventors: Hong Jae JANG, Hyung-Cheol SHIN, Il-Hyun YUN, Wah Chi Raymond WANG, Johnkid LO, King Ho Cheung, Yip Fai LI
  • Publication number: 20190102023
    Abstract: A method of controlling a PMOLED display, which includes a plurality of lower electrode patterns arranged in parallel, a plurality of transparent electrode patterns arranged in parallel and being perpendicular to the lower electrode patterns, and an organic compound layer interposed between lower electrode patterns and transparent electrode patterns, to perform a display output and touch sensing by time-sharing a control period for the lower electrode patterns and the transparent electrode patterns into a display control period and a touch-sensor control period in every display frame time, including providing a driving node formed on a line for communication between the transparent electrode patterns and a display driving circuit and a touch sensing unit connecting the driving node and a touch sensing circuit; performing the display output by connecting the transparent electrode patterns and the display driving circuit in the display control period; and performing the touch sensing by connecting the transpare
    Type: Application
    Filed: September 26, 2018
    Publication date: April 4, 2019
    Inventors: Hong Jae JANG, Hyung-Cheol SHIN, Il-Hyun YUN
  • Publication number: 20190103446
    Abstract: Provided is a method of sensing an illuminance in a passive matrix organic light emitting diode display, the display including a plurality of lower electrode patterns arranged in parallel, a plurality of transparent electrode patterns arranged in parallel and being perpendicular to the lower electrode patterns, and an organic compound layer interposed between the lower electrode pattern and the transparent electrode pattern, the method comprising steps of: (a) forming a predetermined voltage difference between at least one electrode patterns of the transparent electrode patterns as anodes and the lower electrode patterns as cathodes; (b) measuring the magnitude of current formed by the transparent electrode pattern and the lower electrode pattern in the step (a); and (c) measuring an illuminance using the measured current, in which a voltage supplied to the lower electrode pattern is relatively higher than that of the transparent electrode pattern in the step (a).
    Type: Application
    Filed: September 26, 2018
    Publication date: April 4, 2019
    Inventors: Hong Jae JANG, Hyung-Cheol SHIN, Il-Hyun YUN, Wai Hon NG, Yi Nok CHAN, King Ho Cheung, Yip Fai LI
  • Patent number: 9990080
    Abstract: Disclosed is a touch input sensing device comprising: a touch input sensing electrode; a touch sensing unit connected to one point of the touch input sensing electrode to measure a change in a touch capacitance formed by the touch input sensing electrode according to a touch input; a second node included in the touch input sensing device to form a capacitance between the one point and the second node; and a potential control unit for providing a potential value following the potential of the one point to the second node to decrease a potential difference between the one point and the second node.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: June 5, 2018
    Assignee: SENTRON INC.
    Inventors: Hyung-Cheol Shin, Il-Hyun Yun
  • Patent number: 9946384
    Abstract: A method of controlling a touch screen which includes electrode pads provided in response to a display is provided, the method includes: performing a pre-scan of scanning the electrode pads under a deactivation mode of the display; confirming a first touch input during the pre-scan; performing a high-speed fine scan of scanning the electrode pads with a fine high frequency that is higher than a frequency for the pre-scan; evaluating a touch validity of the first touch input of the pre-scan via the high-speed fine scan; performing a fine scan of scanning the electrode pads that is higher than the frequency for the pre-scan and lower than the frequency of the high-speed fine scan, when the touch validity of the first touch input is satisfied; sensing a second touch input during the fine scan; and changing the display into an activation mode in response to the second touch input.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: April 17, 2018
    Assignee: SOLOMON SYSTECH LIMITED
    Inventors: Il Hyun Yun, Hyong Cheol Shin, Young Kook Kim
  • Publication number: 20170003824
    Abstract: A method of controlling a touch screen which includes electrode pads provided in response to a display is provided, the method includes: performing a pre-scan of scanning the electrode pads under a deactivation mode of the display; confirming a first touch input during the pre-scan; performing a high-speed fine scan of scanning the electrode pads with a fine high frequency that is higher than a frequency for the pre-scan; evaluating a touch validity of the first touch input of the pre-scan via the high-speed fine scan; performing a fine scan of scanning the electrode pads that is higher than the frequency for the pre-scan and lower than the frequency of the high-speed fine scan, when the touch validity of the first touch input is satisfied; sensing a second touch input during the fine scan; and changing the display into an activation mode in response to the second touch input.
    Type: Application
    Filed: June 23, 2016
    Publication date: January 5, 2017
    Inventors: Il Hyun Yun, Hyong Cheol Shin, Young Kook Kim
  • Publication number: 20160283023
    Abstract: Disclosed is a touch input sensing device comprising: a touch input sensing electrode; a touch sensing unit connected to one point of the touch input sensing electrode to measure a change in a touch capacitance formed by the touch input sensing electrode according to a touch input; a second node included in the touch input sensing device to form a capacitance between the one point and the second node; and a potential control unit for providing a potential value following the potential of the one point to the second node to decrease a potential difference between the one point and the second node.
    Type: Application
    Filed: November 11, 2014
    Publication date: September 29, 2016
    Inventors: Hyung-Cheol SHIN, Il-Hyun YUN
  • Patent number: 9411469
    Abstract: A driving circuit outputs driving waveforms to operation signal lines. The waveforms are formed by combining a first-mode waveform for charging a node capacitor with a positive voltage and a second-mode waveform for charging the node capacitor with a negative voltage in a predetermined binary sequence. A sensing circuit is electrically connected with a plurality of sense signal lines and measures sense voltages delivered to one integration capacitor from a plurality of node capacitors which are electrically connected with the sense signal lines. A sense detector adds or subtracts the sense voltages which are measured by the sensing circuit at driving time points to measure capacitances of the node capacitors. Accordingly, an autocorrelation technique which is generally used in communication systems is applied to driving a touch screen device.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: August 9, 2016
    Assignee: ZINITIX
    Inventors: Il Hyun Yun, Hyung Cheol Shin
  • Patent number: 9285935
    Abstract: A capacitive type touch screen device according to an exemplary embodiment of the present invention includes a plurality of driving electrodes and a plurality of sensing electrodes overlapped with the plurality of driving electrodes, at least one driving electrode includes a plurality of cells and a plurality of connecting lines, and the plurality of cells are mutually connected through the plurality of connecting lines.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: March 15, 2016
    Assignee: ZINITIX
    Inventors: Il Hyun Yun, Hyung Cheol Shin, Kyoung Kyoo Kim
  • Publication number: 20150355785
    Abstract: A driving circuit outputs driving waveforms to operation signal lines. The waveforms are formed by combining a first-mode waveform for charging a node capacitor with a positive voltage and a second-mode waveform for charging the node capacitor with a negative voltage in a predetermined binary sequence. A sensing circuit is electrically connected with a plurality of sense signal lines and measures sense voltages delivered to one integration capacitor from a plurality of node capacitors which are electrically connected with the sense signal lines. A sense detector adds or subtracts the sense voltages which are measured by the sensing circuit at driving time points to measure capacitances of the node capacitors. Accordingly, an autocorrelation technique which is generally used in communication systems is applied to driving a touch screen device.
    Type: Application
    Filed: August 18, 2015
    Publication date: December 10, 2015
    Inventors: Il Hyun YUN, Hyung Cheol SHIN
  • Patent number: 9141239
    Abstract: A driving circuit outputs driving waveforms to operation signal lines. The waveforms are formed by combining a first-mode waveform for charging a node capacitor with a positive voltage and a second-mode waveform for charging the node capacitor with a negative voltage in a predetermined binary sequence. A sensing circuit is electrically connected with a plurality of sense signal lines and measures sense voltages delivered to one integration capacitor from a plurality of node capacitors which are electrically connected with the sense signal lines. A sense detector adds or subtracts the sense voltages which are measured by the sensing circuit at driving time points to measure capacitances of the node capacitors. Accordingly, an autocorrelation technique which is generally used in communication systems is applied to driving a touch screen device.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: September 22, 2015
    Assignee: ZINITIX
    Inventors: Il Hyun Yun, Hyung Cheol Shin
  • Publication number: 20150062054
    Abstract: A touch panel is disclosed. The touch panel comprises a driving electrode including a plurality of driving electrode-cells and a sensing electrode including a plurality of sensing electrode-cells. The driving electrode and the sensing electrode are formed in the same layer of the touch panel. Each of the sensing electrode-cells is configured to envelop up-down-left-right side of a driving electrode-cell which is electrically coupled to the each of the sensing electrode-cells. And a slit is formed at each of the sensing electrode-cells for connecting a driving trace to the driving electrode-cell.
    Type: Application
    Filed: December 21, 2012
    Publication date: March 5, 2015
    Applicant: Zinitix Co., Ltd.
    Inventors: Il-Hyun Yun, Tai Hyun Yoon
  • Patent number: 8854107
    Abstract: A switched capacitor integrator circuit is disclosed. The switched capacitor integrator circuit comprises an inverting switched capacitor integrator circuit, and a non-inverting switched capacitor integrator circuit connected to the inverting switched capacitor integrator circuit. A sampling capacitor of the inverting switched capacitor integrator circuit is shared by the non-inverting switched capacitor integrator circuit.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: October 7, 2014
    Assignee: Zinitix Co., Ltd.
    Inventors: Oh-Jin Kwon, Il-Hyun Yun, Seon-Woong Jang, Hyung-Cheol Shin
  • Publication number: 20140043290
    Abstract: A capacitive type touch screen device according to an exemplary embodiment of the present invention includes a plurality of driving electrodes and a plurality of sensing electrodes overlapped with the plurality of driving electrodes, at least one driving electrode includes a plurality of cells and a plurality of connecting lines, and the plurality of cells are mutually connected through the plurality of connecting lines.
    Type: Application
    Filed: October 14, 2013
    Publication date: February 13, 2014
    Applicant: ZINITIX
    Inventors: Il Hyun YUN, Hyung Cheol SHIN, Kyoung Kyoo KIM
  • Publication number: 20110273400
    Abstract: A switched capacitor integrator circuit is disclosed. The switched capacitor integrator circuit comprises an inverting switched capacitor integrator circuit, and a non-inverting switched capacitor integrator circuit connected to the inverting switched capacitor integrator circuit. A sampling capacitor of the inverting switched capacitor integrator circuit is shared by the non-inverting switched capacitor integrator circuit.
    Type: Application
    Filed: May 11, 2011
    Publication date: November 10, 2011
    Applicant: ZINITIX CO., LTD.
    Inventors: Oh-Jin KWON, Il-Hyun YUN, Seon-Woong JANG, Hyung-Cheol SHIN