Patents by Inventor Oh Kyong Kwon
Oh Kyong Kwon 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: 11942029Abstract: A display device includes a pixel. The pixel includes a light-emitting element, a first capacitor, and first to fifth transistors. The first transistor is connected between a first voltage line receiving a first driving voltage and the light-emitting element, and operates in response to a potential of a first node, and the second transistor is connected between a data line and the first node, and receives a first scan signal. The first capacitor is connected between the first node and a second node, and the third transistor is connected between the first transistor and the first node, and receives a second scan signal. The fourth transistor is connected between a reference voltage line and the first node, and receives a third scan signal, and the fifth transistor is connected between the first transistor and the second node, and receives an emission control signal.Type: GrantFiled: May 30, 2023Date of Patent: March 26, 2024Assignees: SAMSUNG DISPLAY CO., LTD., IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)Inventors: Byungchang Yu, Oh-Kyong Kwon, Kyunghoon Chung
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Publication number: 20240038145Abstract: A display device includes a pixel. The pixel includes a light-emitting element, a first capacitor, and first to fifth transistors. The first transistor is connected between a first voltage line receiving a first driving voltage and the light-emitting element, and operates in response to a potential of a first node, and the second transistor is connected between a data line and the first node, and receives a first scan signal. The first capacitor is connected between the first node and a second node, and the third transistor is connected between the first transistor and the first node, and receives a second scan signal. The fourth transistor is connected between a reference voltage line and the first node, and receives a third scan signal, and the fifth transistor is connected between the first transistor and the second node, and receives an emission control signal.Type: ApplicationFiled: May 30, 2023Publication date: February 1, 2024Inventors: BYUNGCHANG YU, Oh-Kyong KWON, KYUNGHOON CHUNG
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Publication number: 20240021144Abstract: A display device includes: a pixel including a light emitting element, a first capacitor connected between a first node and a second node, and a second capacitor connected between the second node and a third node. The pixel further includes: a first transistor connected between the second node and the light emitting element to operate depending on potential of the first node; a second transistor connected between the third node and a data line to operate depending on a first scan signal; a third transistor connected between the third node and the second transistor to operate depending on a light emitting control signal; a fourth transistor connected between a reference voltage line and a first node to operate depending on the second scan signal; and a fifth transistor connected between the reference voltage line and the third node to operate depending on a third scan signal.Type: ApplicationFiled: April 25, 2023Publication date: January 18, 2024Inventors: BYUNGCHANG YU, Oh-Kyong KWON, KYUNGHOON CHUNG
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Publication number: 20230230546Abstract: A display apparatus includes a plurality of pixels. A pixel includes a first capacitor connected between a first voltage line receiving a first driving signal and a first node, a first transistor comprising a control electrode connected to the first node, a first electrode connected to a second voltage line receiving a first power source signal and a second electrode connected to a second node, an organic light emitting diode comprising an anode electrode connected to the second node and a cathode electrode receiving a second power source signal, a second capacitor connected between an m-th data line and the second node (wherein, ‘m’ is a natural number) and a second transistor comprising a control electrode connected to an n-th scan line (wherein, ‘n’ is a natural number), a first electrode connected to the first node and a second electrode connected to the second node.Type: ApplicationFiled: March 20, 2023Publication date: July 20, 2023Inventors: Chong-Chul CHAI, Oh-Kyong KWON, Nack-Hyeon KEUM, Kyong-Hwan OH, Young-Wan SEO, Yong-Koo HER, In-Jae HWANG
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Patent number: 11640792Abstract: A method of driving a display device including a sensing line, a light-emitting element, a capacitor, and a driving transistor, the driving transistor comprising a control terminal that is connected to the capacitor, an input terminal, and an output terminal, the method including: connecting the control terminal and the output terminal; connecting the control terminal and the output terminal to a ground voltage and then disconnecting the control terminal and the output terminal from the ground voltage; sensing a first voltage of the control terminal through the sensing line; and calculating a threshold voltage of the driving transistor based on the first voltage.Type: GrantFiled: April 1, 2022Date of Patent: May 2, 2023Assignees: Samsung Display Co., Ltd., IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)Inventors: Ung-Gyu Min, Oh-Kyong Kwon
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Patent number: 11610547Abstract: A display apparatus includes a plurality of pixels. A pixel includes a first capacitor connected between a first voltage line receiving a first driving signal and a first node, a first transistor comprising a control electrode connected to the first node, a first electrode connected to a second voltage line receiving a first power source signal and a second electrode connected to a second node, an organic light emitting diode comprising an anode electrode connected to the second node and a cathode electrode receiving a second power source signal, a second capacitor connected between an m-th data line and the second node (wherein, ‘m’ is a natural number) and a second transistor comprising a control electrode connected to an n-th scan line (wherein, ‘n’ is a natural number), a first electrode connected to the first node and a second electrode connected to the second node.Type: GrantFiled: September 30, 2021Date of Patent: March 21, 2023Inventors: Chong-Chul Chai, Oh-Kyong Kwon, Nack-Hyeon Keum, Kyong-Hwan Oh, Young-Wan Seo, Yong-Koo Her, In-Jae Hwang
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Publication number: 20230005418Abstract: A display device is provided including a display panel. A pixel of the display panel includes a light emitting element, first through sixth transistors, and a capacitor. The first transistor is connected between a power line and the light emitting element and operates depending on a potential of a first node. The second transistor is connected between a data line and a second node. The capacitor is connected between the first node and the second node. The third transistor is connected between the first transistor and the first node. The fourth transistor is connected between the first node and a reference voltage line. The fifth transistor is connected between the second node and the reference voltage line. The sixth transistor is connected between the power line and the second node.Type: ApplicationFiled: May 2, 2022Publication date: January 5, 2023Inventors: Oh-Kyong KWON, Minjae JEONG, Kyunghoon CHUNG
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Publication number: 20220415991Abstract: A pixel including: a light emitting diode; a first capacitor connected between first and second nodes; a second capacitor connected between the second node and a third node; a first transistor including a first electrode connected to the second node, a second electrode connected to an anode of the light emitting diode, and a gate electrode connected to the first node; a second transistor including a first electrode connected to the third node, a second electrode connected to a reference voltage line, and a gate electrode connected to a first scan line; a third transistor including a first electrode electrically connected to the first node, a second electrode connected to the reference voltage line, and a gate electrode connected to a second scan line; and a fourth transistor including a first electrode connected to a data line, a second electrode connected to the third node, and a gate electrode connected to a third scan line.Type: ApplicationFiled: May 18, 2022Publication date: December 29, 2022Inventors: Oh-Kyong KWON, MINJAE JEONG, KYUNGHOON CHUNG
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Publication number: 20220223108Abstract: A method of driving a display device including a sensing line, a light-emitting element, a capacitor, and a driving transistor, the driving transistor comprising a control terminal that is connected to the capacitor, an input terminal, and an output terminal, the method including: connecting the control terminal and the output terminal; connecting the control terminal and the output terminal to a ground voltage and then disconnecting the control terminal and the output terminal from the ground voltage; sensing a first voltage of the control terminal through the sensing line; and calculating a threshold voltage of the driving transistor based on the first voltage.Type: ApplicationFiled: April 1, 2022Publication date: July 14, 2022Inventors: Ung-Gyu MIN, Oh-Kyong Kwon
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Patent number: 11315493Abstract: A method of driving a display device including a sensing line, a light-emitting element, a capacitor, and a driving transistor, the driving transistor comprising a control terminal that is connected to the capacitor, an input terminal, and an output terminal, the method including: connecting the control terminal and the output terminal; connecting the control terminal and the output terminal to a ground voltage and then disconnecting the control terminal and the output terminal from the ground voltage; sensing a first voltage of the control terminal through the sensing line; and calculating a threshold voltage of the driving transistor based on the first voltage.Type: GrantFiled: January 24, 2021Date of Patent: April 26, 2022Assignees: IUCF-HYU Industry-University Cooperation Foundation Hanyai, Samsung Display Co., Ltd.Inventors: Ung-Gyu Min, Oh-Kyong Kwon
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Patent number: 11289016Abstract: Discussed is a display device including a plurality of semiconductor light-emitting devices applied to sub-pixels included in each pixel of a display panel; and a driving unit for driving the plurality of semiconductor light-emitting devices on the basis of a digital pulse width modulation (PWM) signal, wherein the driving unit further includes: a current sensing unit for sensing the value of a current flowing through at least one of the plurality of semiconductor light-emitting devices; and a current compensation unit for compensating for the current deviation between the plurality of semiconductor light-emitting devices on the basis of the current value sensed by the sensing unit.Type: GrantFiled: October 18, 2018Date of Patent: March 29, 2022Assignees: LG ELECTRONICS INC., INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITYInventors: Sunghwan Kim, Seongjin Park, Oh-Kyong Kwon
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Publication number: 20220020331Abstract: A display apparatus includes a plurality of pixels. A pixel includes a first capacitor connected between a first voltage line receiving a first driving signal and a first node, a first transistor comprising a control electrode connected to the first node, a first electrode connected to a second voltage line receiving a first power source signal and a second electrode connected to a second node, an organic light emitting diode comprising an anode electrode connected to the second node and a cathode electrode receiving a second power source signal, a second capacitor connected between an m-th data line and the second node (wherein, ‘m’ is a natural number) and a second transistor comprising a control electrode connected to an n-th scan line (wherein, ‘n’ is a natural number), a first electrode connected to the first node and a second electrode connected to the second node.Type: ApplicationFiled: September 30, 2021Publication date: January 20, 2022Inventors: Chong-Chul CHAI, Oh-Kyong KWON, Nack-Hyeon KEUM, Kyong-Hwan OH, Young-Wan SEO, Yong-Koo HER, In-Jae HWANG
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Patent number: 11183092Abstract: Disclosed are a capacitance-type touch panel device and an operation method for the same. In order that the effect of disturbance noise comprised in a receiving signal is minimized, a calculation for a digital code which has been converted into a digital signal type is performed. Information about the noise level of the digital code is compared to a reference value, and, when the frequency of the noise is determined to be similar to the frequency of the receiving signal, the frequency of an operation signal, which is supplied from a signal generation unit, is changed.Type: GrantFiled: July 7, 2015Date of Patent: November 23, 2021Assignee: Industry-University Cooperation Foundation Hanyang UniversityInventor: Oh-Kyong Kwon
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Patent number: 11164525Abstract: A display apparatus includes a plurality of pixels. A pixel includes a first capacitor connected between a first voltage line receiving a first driving signal and a first node, a first transistor comprising a control electrode connected to the first node, a first electrode connected to a second voltage line receiving a first power source signal and a second electrode connected to a second node, an organic light emitting diode comprising an anode electrode connected to the second node and a cathode electrode receiving a second power source signal, a second capacitor connected between an m-th data line and the second node (wherein, ‘m’ is a natural number) and a second transistor comprising a control electrode connected to an n-th scan line (wherein, ‘n’ is a natural number), a first electrode connected to the first node and a second electrode connected to the second node.Type: GrantFiled: June 23, 2020Date of Patent: November 2, 2021Inventors: Chong-Chul Chai, Oh-Kyong Kwon, Nack-Hyeon Keum, Kyong-Hwan Oh, Young-Wan Seo, Yong-Koo Her, In-Jae Hwang
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Patent number: 11048368Abstract: A touch panel where touch/fingerprint recognition electrodes, including sub-pixels, pixels or pixel arrays in a row, share one sensing line is disclosed. The self capacitive touch panel comprises (m×n) sub-pixels, m and n being positive integer, respectively, and a driver configured to drive the sub-pixels. Here, touch/fingerprint recognition electrodes of sub-pixels in a row share one sensing line. Touch point detection and fingerprint recognition may be selectively driven through the touch panel and a readout method.Type: GrantFiled: July 6, 2017Date of Patent: June 29, 2021Assignee: Industry-University Cooperation Foundation Hanyang UniversityInventor: Oh-Kyong Kwon
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Publication number: 20210166620Abstract: Discussed is a display device including a plurality of semiconductor light-emitting devices applied to sub-pixels included in each pixel of a display panel; and a driving unit for driving the plurality of semiconductor light-emitting devices on the basis of a digital pulse width modulation (PWM) signal, wherein the driving unit further includes: a current sensing unit for sensing the value of a current flowing through at least one of the plurality of semiconductor light-emitting devices; and a current compensation unit for compensating for the current deviation between the plurality of semiconductor light-emitting devices on the basis of the current value sensed by the sensing unit.Type: ApplicationFiled: October 18, 2018Publication date: June 3, 2021Applicants: LG ELECTRONICS INC., INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITYInventors: Sunghwan KIM, Seongjin PARK, Oh-Kyong KWON
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Publication number: 20210142730Abstract: A method of driving a display device including a sensing line, a light-emitting element, a capacitor, and a driving transistor, the driving transistor comprising a control terminal that is connected to the capacitor, an input terminal, and an output terminal, the method including: connecting the control terminal and the output terminal; connecting the control terminal and the output terminal to a ground voltage and then disconnecting the control terminal and the output terminal from the ground voltage; sensing a first voltage of the control terminal through the sensing line; and calculating a threshold voltage of the driving transistor based on the first voltage.Type: ApplicationFiled: January 24, 2021Publication date: May 13, 2021Inventors: Ung-Gyu Min, Oh-Kyong Kwon
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Patent number: 10969897Abstract: In the touch panel device and the operating method for the same according to the present invention, an entire scan is divided into a first scan and a second scan for determining a touch position. In the first scan, a plurality of transmission electrodes are configured into groups, and a signal is applied sequentially or simultaneously such that a first analysis position is determined. In the second scan, since a signal is sequentially or simultaneously applied only to the first analysis position, a plurality of sampling durations can sufficiently be provided such that a second analysis position, which is the exact touch position, can be determined.Type: GrantFiled: January 4, 2019Date of Patent: April 6, 2021Assignee: MIRAENANOTECH CO., LTD.Inventor: Oh-Kyong Kwon
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Patent number: 10902784Abstract: A method of driving a display device including a sensing line, a light-emitting element, a capacitor, and a driving transistor, the driving transistor comprising a control terminal that is connected to the capacitor, an input terminal, and an output terminal, the method including: connecting the control terminal and the output terminal; connecting the control terminal and the output terminal to a ground voltage and then disconnecting the control terminal and the output terminal from the ground voltage; sensing a first voltage of the control terminal through the sensing line; and calculating a threshold voltage of the driving transistor based on the first voltage.Type: GrantFiled: October 14, 2019Date of Patent: January 26, 2021Assignees: Samsung Display Co., Ltd., IUCF-HYU Industry-University Cooperation Foundation Hanyang UniversityInventors: Ung-Gyu Min, Oh-Kyong Kwon
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Publication number: 20200320936Abstract: A display apparatus includes a plurality of pixels. A pixel includes a first capacitor connected between a first voltage line receiving a first driving signal and a first node, a first transistor comprising a control electrode connected to the first node, a first electrode connected to a second voltage line receiving a first power source signal and a second electrode connected to a second node, an organic light emitting diode comprising an anode electrode connected to the second node and a cathode electrode receiving a second power source signal, a second capacitor connected between an m-th data line and the second node (wherein, ‘m’ is a natural number) and a second transistor comprising a control electrode connected to an n-th scan line (wherein, ‘n’ is a natural number), a first electrode connected to the first node and a second electrode connected to the second node.Type: ApplicationFiled: June 23, 2020Publication date: October 8, 2020Inventors: Chong-Chul CHAI, Oh-Kyong KWON, Nack-Hyeon KEUM, Kyong-Hwan OH, Young-Wan SEO, Yong-Koo HER, In-Jae HWANG