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公开(公告)号：US11227518B2
公开(公告)日：2022-01-18
申请号：US15979786
申请日：2018-05-15
发明人： Kwang Sae Lee , Jung Hoon Shim , Won Kyu Kwak , Ki Myeong Eom
摘要： A display device includes a display panel having a display area and a peripheral area. The display device includes a circuit having a comparator, and first and second sense wires disposed in the peripheral area and connected to the circuit. The comparator compares a first output signal output from the first sense wire and a second output signal output from the second sense wire to generate a comparison result. The circuit determines whether a defect is present in the display device based on the comparison result.
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公开(公告)号：US11195440B2
公开(公告)日：2021-12-07
申请号：US15987268
申请日：2018-05-23
发明人： Kwang Sae Lee , Jung Hoon Shim , Won Kyu Kwak , Ki Myeong Eom
摘要： A display device includes a defect inspection circuit, and a display panel having a display area and a peripheral area positioned outside the display area. The display panel includes a sensing wire positioned in the peripheral area and connected to the defect inspection circuit. The defect inspection circuit includes a resistance detection circuit that detects a resistance of the sensing wire based on an output signal corresponding to the sensing wire, a memory that stores first resistance information related to the resistance of the sensing wire detected in a first inspection operation, and a comparator circuit including a first comparator that compares the first resistance information with second resistance information. The second resistance information is related to the resistance of the sensing wire detected in a second inspection operation that is performed at a different time than the first inspection operation.
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公开(公告)号：US20180342185A1
公开(公告)日：2018-11-29
申请号：US15987268
申请日：2018-05-23
发明人： KWANG SAE LEE , Jung Hoon Shim , Won Kyu Kwak , Ki Myeong Eom
摘要： A display device includes a defect inspection circuit, and a display panel having a display area and a peripheral area positioned outside the display area. The display panel includes a sensing wire positioned in the peripheral area and connected to the defect inspection circuit. The defect inspection circuit includes a resistance detection circuit that detects a resistance of the sensing wire based on an output signal corresponding to the sensing wire, a memory that stores first resistance information related to the resistance of the sensing wire detected in a first inspection operation, and a comparator circuit including a first comparator that compares the first resistance information with second resistance information. The second resistance information is related to the resistance of the sensing wire detected in a second inspection operation that is performed at a different time than the first inspection operation.
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公开(公告)号：US11551604B2
公开(公告)日：2023-01-10
申请号：US17382471
申请日：2021-07-22
发明人： Sunghwan Kim , Jung Hoon Shim
IPC分类号： G09G3/3266 , G09G3/20
摘要： A scan driver of a display device includes a plurality of stages. Each stage includes a clock line configured to receive a first clock signal and a second clock signal having different phases, a shared input circuit configured to transfer an input signal to a shared control node, a first output circuit coupled to the shared control node, configured to transfer a voltage of the shared control node to a first control node, and configured to output a first scan signal in response to a voltage of the first control node and the first clock signal, and a second output circuit coupled to the shared control node, configured to transfer the voltage of the shared control node to a second control node, and configured to output a second scan signal in response to a voltage of the second control node and the second clock signal.
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公开(公告)号：US12039937B2
公开(公告)日：2024-07-16
申请号：US18064801
申请日：2022-12-12
发明人： Sung Hwan Kim , Won Kyu Kwak , Jung Hoon Shim , Yun Kyeong In
IPC分类号： G09G3/3266
CPC分类号： G09G3/3266 , G09G2300/0876
摘要： A display device includes: a display unit including a first display area, and a second display area; a scan driver configured to provide a scan signal to each scan line connected to the plurality of first pixels and the plurality of second pixels; and an emission controller configured to provide an emission control signal to each emission control line connected to the plurality of first pixels and the plurality of second pixels, wherein the plurality of first pixels have a first density in the first display area, the plurality of second pixels have a second density less than the first density in the second display area, and the plurality of second pixels include at least one sub pixel including one boosting capacitor.
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公开(公告)号：US11727836B2
公开(公告)日：2023-08-15
申请号：US17575109
申请日：2022-01-13
发明人： Kwang Sae Lee , Jung Hoon Shim , Won Kyu Kwak , Ki Myeong Eom
CPC分类号： G09G3/006 , G09G3/20 , G09G2300/0426 , G09G2330/12
摘要： A display device includes a display panel having a display area and a peripheral area. The display device includes a circuit having a comparator, and first and second sense wires disposed in the peripheral area and connected to the circuit. The comparator compares a first output signal output from the first sense wire and a second output signal output from the second sense wire to generate a comparison result. The circuit determines whether a defect is present in the display device based on the comparison result.
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公开(公告)号：US11527206B2
公开(公告)日：2022-12-13
申请号：US17145638
申请日：2021-01-11
发明人： Sung Hwan Kim , Won Kyu Kwak , Jung Hoon Shim , Yun Kyeong In
IPC分类号： G09G3/3266
摘要： A display device includes: a display unit including a first display area, and a second display area; a scan driver configured to provide a scan signal to each scan line connected to the plurality of first pixels and the plurality of second pixels; and an emission controller configured to provide an emission control signal to each emission control line connected to the plurality of first pixels and the plurality of second pixels, wherein the plurality of first pixels have a first density in the first display area, the plurality of second pixels have a second density less than the first density in the second display area, and the plurality of second pixels include at least one sub pixel including one boosting capacitor.
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公开(公告)号：US20220139280A1
公开(公告)日：2022-05-05
申请号：US17575109
申请日：2022-01-13
发明人： Kwang Sae Lee , Jung Hoon Shim , Won Kyu Kwak , Ki Myeong Eom
摘要： A display device includes a display panel having a display area and a peripheral area. The display device includes a circuit having a comparator, and first and second sense wires disposed in the peripheral area and connected to the circuit. The comparator compares a first output signal output from the first sense wire and a second output signal output from the second sense wire to generate a comparison result. The circuit determines whether a defect is present in the display device based on the comparison result.
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