Patents by Inventor Hwan-Soo Jang
Hwan-Soo Jang 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: 20200312944Abstract: A display apparatus includes a substrate including a display area, a peripheral area surrounding the display area, a function-adding area, of which at least a portion is surrounded by the display area, and a detour area disposed between the display area and the function-adding area. The display apparatus includes a plurality of pixel circuits disposed in the display area. A plurality of driving lines are electrically connected to the pixel circuits and extend in a direction in the display area. A first detour line is disposed in the detour area and is electrically connected to a first driving line. A second detour line is disposed in the detour area. The second detour line is electrically connected to a second driving line and is disposed in a different layer from the first detour line.Type: ApplicationFiled: June 16, 2020Publication date: October 1, 2020Inventors: JI-HYUN KA, SEUNG-KYU LEE, HWAN-SOO JANG, JIN-TAE JEONG
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Publication number: 20200302870Abstract: A stage circuit including: an output circuit for supplying a voltage of a first or second power supply to an output terminal in response to voltages of first and second nodes; an input circuit for controlling voltages of the second node and a third node; a first signal processor for controlling the voltage of the first node; a second signal processor configured to control the voltage of the first node in response to an output voltage of a third signal processor and a signal supplied to a third input terminal; and the third signal processor for controlling the voltage of the second node. The third signal processor includes: a third capacitor coupled between the first power supply and the second node; and a third transistor coupled between the first power supply and the third input terminal, and including a gate electrode coupled to the second node.Type: ApplicationFiled: March 17, 2020Publication date: September 24, 2020Inventor: Hwan Soo JANG
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Publication number: 20200212161Abstract: An organic light emitting display device includes a substrate having a display area and a peripheral area; a pad disposed on the substrate in the peripheral area; a first conductive pattern disposed on one side of the display area in the peripheral area and electrically connected to the pad; a second conductive pattern disposed on the substrate in the peripheral area and disposed on an opposite side of the first conductive pattern; a first connection electrode disposed on the first conductive pattern in the peripheral area and electrically connected to the first conductive pattern; and a second connection electrode disposed on the second conductive pattern in the peripheral area and electrically connected to the second conductive pattern. A cathode electrode of a light emitting diode is disposed on the first and second connection electrodes and electrically connected to the first and second connection electrodes.Type: ApplicationFiled: March 9, 2020Publication date: July 2, 2020Inventors: Sang Moo CHOI, Mi Hae KIM, Sang Won SEOK, Hwan Soo JANG, Su Jin LEE
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Patent number: 10700155Abstract: A display apparatus includes a substrate including a display area, a peripheral area surrounding the display area, a function-adding area, of which at least a portion is surrounded by the display area, and a detour area disposed between the display area and the function-adding area. The display apparatus includes a plurality of pixel circuits disposed in the display area. A plurality of driving lines are electrically connected to the pixel circuits and extend in a direction in the display area. A first detour line is disposed in the detour area and is electrically connected to a first driving line. A second detour line is disposed in the detour area. The second detour line is electrically connected to a second driving line and is disposed in a different layer from the first detour line.Type: GrantFiled: April 22, 2019Date of Patent: June 30, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ji-Hyun Ka, Seung-Kyu Lee, Hwan-Soo Jang, Jin-Tae Jeong
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Patent number: 10665175Abstract: A display device includes: a first pixel region including first pixels, each of the first pixels including a driving transistor to be initialized by a first initialization power source supplied from a first power line; a second pixel region including second pixels, each of the second pixels including a driving transistor to be initialized by a second initialization power source supplied from a second power line; and a power supplier to supply the first initialization power source and the second initialization power source, the first initialization power source and the second initialization power source having a same voltage level when the display device is driven in a first mode, and the first initialization power source and the second initialization power source having different voltage levels during at least one frame period when the display device is driven in a second mode.Type: GrantFiled: December 18, 2017Date of Patent: May 26, 2020Assignee: Samsung Display Co., Ltd.Inventors: Tae Hoon Kim, Ji Hyun Ka, Hwan Soo Jang, Jin Tae Jeong, Min Woo Byun
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Patent number: 10622434Abstract: An organic light emitting display device includes a substrate having a display area and a peripheral area; a pad disposed on the substrate in the peripheral area; a first conductive pattern disposed on one side of the display area in the peripheral area and electrically connected to the pad; a second conductive pattern disposed on the substrate in the peripheral area and disposed on an opposite side of the first conductive pattern with the display area interposed between the first conductive pattern and the second conductive pattern; a first connection electrode disposed on the first conductive pattern in the peripheral area and electrically connected to the first conductive pattern; and a second connection electrode disposed on the second conductive pattern in the peripheral area and electrically connected to the second conductive pattern.Type: GrantFiled: July 12, 2018Date of Patent: April 14, 2020Assignee: Samsung Display Co., Ltd.Inventors: Sang Moo Choi, Mi Hae Kim, Sang Won Seok, Hwan Soo Jang, Su Jin Lee
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Publication number: 20200044155Abstract: A display device includes a display area, a test pad, a plurality of first test transistors, and at least one outline. The display area includes pixels coupled to data lines and scan lines. The test pad receives a test signal. The first test transistors are coupled between the data lines of the display area and the test pad. The at least one outline is coupled between one of the first test transistors and the test pad. The at least one outline is located in a non-display area outside the display area.Type: ApplicationFiled: October 11, 2019Publication date: February 6, 2020Applicant: Samsung Display Co., Ltd.Inventors: Won-Kyu KWAK, Hwan-Soo JANG, Jae-Yong LEE
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Publication number: 20190355289Abstract: A display panel includes: a display including pixel columns electrically connected to data lines; a non-display area adjacent the display; a test circuit configured to receive a lighting test signal passing through at least a portion of the non-display area and to transfer the lighting test signal to the data lines in response to a test control signal; and a switch configured to receive a data signal from an external component and to transfer the data signal to the data lines in response to a switching signal.Type: ApplicationFiled: July 29, 2019Publication date: November 21, 2019Inventors: Won-Kyu Kwak, Hwan-Soo Jang, Seung-Kyu Lee
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Patent number: 10453386Abstract: An emission control driver includes a plurality of stages. Each stage includes three circuit blocks and two output transistors. A first circuit block generates first and second control signals based on a first clock signal and a start signal or carry signal. A second circuit block controls the voltage level of the first control signal based on the first control signal and a second clock signal. A third circuit block generates a third control signal based on the second control signal and the second clock signal. The first output transistor outputs a first voltage as an emission control signal based on the first control signal. A second output transistor outputs a second voltage as the emission control signal based on the third control signal. The second circuit block maintains the voltage level of the first control signal while the first output transistor is turned off.Type: GrantFiled: May 24, 2017Date of Patent: October 22, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Hwan-Soo Jang
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Patent number: 10446755Abstract: A display device includes a display area, a test pad, a plurality of first test transistors, and at least one outline. The display area includes pixels coupled to data lines and scan lines. The test pad receives a test signal. The first test transistors are coupled between the data lines of the display area and the test pad. The at least one outline is coupled between one of the first test transistors and the test pad. The at least one outline is located in a non-display area outside the display area.Type: GrantFiled: October 19, 2018Date of Patent: October 15, 2019Assignee: Samsung Display Co., Ltd.Inventors: Won-Kyu Kwak, Hwan-Soo Jang, Jae-Yong Lee
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Patent number: 10395599Abstract: A display device according to example embodiments includes a display panel divided into a first area including a plurality of first area pixel rows and a second area including a plurality of second area pixel rows, the number of pixels of each of the second area pixel rows being less than the number of pixels of each of the first area pixel rows, a scan driver configured to provide a plurality of scan signals to the display panel based on a width of an active period of a clock signal, the scan signals being output having substantially the same width of active periods to each other, a data driver configured to provide a plurality of data signals to the display panel, and a timing controller configured to adjust the width of the active period of the clock signal within a frame period based on locations of the first area and the second area.Type: GrantFiled: January 24, 2017Date of Patent: August 27, 2019Assignee: Samsung Display Co., Ltd.Inventors: Jae-Du Noh, Sang-Won Seok, Hwan-Soo Jang, Jin-Tae Jeong, Seung-Yeon Cho, Ji-Hyun Ka
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Publication number: 20190245029Abstract: A display apparatus includes a substrate including a display area, a peripheral area surrounding the display area, a function-adding area, of which at least a portion is surrounded by the display area, and a detour area disposed between the display area and the function-adding area. The display apparatus includes a plurality of pixel circuits disposed in the display area. A plurality of driving lines are electrically connected to the pixel circuits and extend in a direction in the display area. A first detour line is disposed in the detour area and is electrically connected to a first driving line. A second detour line is disposed in the detour area. The second detour line is electrically connected to a second driving line and is disposed in a different layer from the first detour line.Type: ApplicationFiled: April 22, 2019Publication date: August 8, 2019Inventors: JI-HYUN KA, SEUNG-KYU LEE, HWAN-SOO JANG, JIN-TAE JEONG
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Patent number: 10366643Abstract: A display panel includes: a display including pixel columns electrically connected to data lines; a non-display area adjacent the display; a test circuit configured to receive a lighting test signal passing through at least a portion of the non-display area and to transfer the lighting test signal to the data lines in response to a test control signal; and a switch configured to receive a data signal from an external component and to transfer the data signal to the data lines in response to a switching signal.Type: GrantFiled: August 11, 2015Date of Patent: July 30, 2019Assignee: Samsung Display Co., Ltd.Inventors: Won-Kyu Kwak, Hwan-Soo Jang, Seung-Kyu Lee
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Publication number: 20190197949Abstract: A display device includes a first pixel region including a plurality of first pixels and a plurality of first gate control lines coupled to the first pixels, and a second pixel region spaced apart from the first pixel region. The second pixel region includes a plurality of second pixels and a plurality of second gate control lines coupled to the second pixels. The display device further includes a first non-pixel region disposed between the first pixel region and the second pixel region, and a first coupling line disposed in the first non-pixel region. The first coupling line commonly couples at least two first gate control lines and at least two second gate control lines.Type: ApplicationFiled: October 5, 2018Publication date: June 27, 2019Inventors: Mi Hae Kim, Min Kyu Woo, Young Taeg Jung, Hyun Chol Bang, Sang Won Seok, Hwan Soo Jang, Ju Hee Hyeon
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Publication number: 20190172888Abstract: The organic light emitting display device includes a substrate having a display area in which a plurality of pixels including an organic light emitting diode is arranged and a peripheral area surrounding the display area; a pad disposed on the substrate in the peripheral area; a first conductive pattern disposed on one side of the display area in the peripheral area and electrically connected to the pad; a second conductive pattern disposed on the substrate in the peripheral area and disposed on an opposite side of the first conductive pattern with the display area interposed between the first conductive pattern and the second conductive pattern; a first connection electrode disposed on the first conductive pattern in the peripheral area and electrically connected to the first conductive pattern; and a second connection electrode disposed on the second conductive pattern in the peripheral area and electrically connected to the second conductive pattern, wherein a cathode electrode of the organic light emittinType: ApplicationFiled: July 12, 2018Publication date: June 6, 2019Inventors: Sang Moo CHOI, Mi Hae KIM, Sang Won SEOK, Hwan Soo JANG, Su Jin LEE
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Patent number: 10297655Abstract: A display apparatus includes a substrate including a display area, a peripheral area surrounding the display area, a function-adding area, of which at least a portion is surrounded by the display area, and a detour area disposed between the display area and the function-adding area. The display apparatus includes a plurality of pixel circuits disposed in the display area. A plurality of driving lines are electrically connected to the pixel circuits and extend in a direction in the display area. A first detour line is disposed in the detour area and is electrically connected to a first driving line. A second detour line is disposed in the detour area. The second detour line is electrically connected to a second driving line and is disposed in a different layer from the first detour line.Type: GrantFiled: November 8, 2018Date of Patent: May 21, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ji-Hyun Ka, Seung-Kyu Lee, Hwan-Soo Jang, Jin-Tae Jeong
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Patent number: 10255851Abstract: An emission driver includes a plurality of circuit stages to output emission control signals. Each circuit stage includes signal generators, a pull-up controller to control a pull-up circuit, and a pull-down controller to control a pull-down circuit. One signal generator generates node signals based on a carry signal and a second clock signal. Another signal generator generates a first clock signal delayed from the second clock signal and another node signal. The pull-up circuit pulls up an emission control signal to a first driving voltage based on some of the node signals. The pull-down circuit pulls down the emission control signal to a second driving voltage lower than the first driving voltage. The pull-down controller control the pull-down circuit based on delayed dimming clock signals.Type: GrantFiled: March 24, 2017Date of Patent: April 9, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Hwan-Soo Jang
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Publication number: 20190074346Abstract: A display apparatus includes a substrate including a display area, a peripheral area surrounding the display area, a function-adding area, of which at least a portion is surrounded by the display area, and a detour area disposed between the display area and the function-adding area. The display apparatus includes a plurality of pixel circuits disposed in the display area. A plurality of driving lines are electrically connected to the pixel circuits and extend in a direction in the display area. A first detour line is disposed in the detour area and is electrically connected to a first driving line. A second detour line is disposed in the detour area. The second detour line is electrically connected to a second driving line and is disposed in a different layer from the first detour line.Type: ApplicationFiled: November 8, 2018Publication date: March 7, 2019Inventors: JI-HYUN KA, SEUNG-KYU LEE, HWAN-SOO JANG, JIN-TAE JEONG
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Publication number: 20190051831Abstract: A display device includes a display area, a test pad, a plurality of first test transistors, and at least one outline. The display area includes pixels coupled to data lines and scan lines. The test pad receives a test signal. The first test transistors are coupled between the data lines of the display area and the test pad. The at least one outline is coupled between one of the first test transistors and the test pad. The at least one outline is located in a non-display area outside the display area.Type: ApplicationFiled: October 19, 2018Publication date: February 14, 2019Inventors: Won-Kyu KWAK, Hwan-Soo JANG, Jae-Yong LEE
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Patent number: 10134826Abstract: A display apparatus includes a substrate including a display area, a peripheral area surrounding the display area, a function-adding area, of which at least a portion is surrounded by the display area, and a detour area disposed between the display area and the function-adding area. The display apparatus includes a plurality of pixel circuits disposed in the display area. A plurality of driving lines are electrically connected to the pixel circuits and extend in a direction in the display area. A first detour line is disposed in the detour area and is electrically connected to a first driving line. A second detour line is disposed in the detour area. The second detour line is electrically connected to a second driving line and is disposed in a different layer from the first detour line.Type: GrantFiled: January 12, 2017Date of Patent: November 20, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ji-Hyun Ka, Seung-Kyu Lee, Hwan-Soo Jang, Jin-Tae Jeong