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公开(公告)号:US11361716B2
公开(公告)日:2022-06-14
申请号:US17176828
申请日:2021-02-16
发明人: Won Kim , Young Bok Kim , Young Ho Shin
IPC分类号: G09G3/3275 , G09G3/3233
摘要: The present disclosure relates to a pixel sensing circuit and a panel driving device, and more particularly, to a pixel sensing circuit and a panel driving device for effectively compensating for differences of characteristics of sensing channel circuits depending on locations where the sensing channel circuits are disposed in an integrated circuit.
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公开(公告)号:US11222599B2
公开(公告)日:2022-01-11
申请号:US17186416
申请日:2021-02-26
发明人: Seong Geon Kim , Young Bok Kim , Won Kim
IPC分类号: G09G3/3275
摘要: A source driver and a display device including the same, capable of accurately sensing pixels characteristics and characteristics of the source driver. A source driver includes a switch circuit configured to transfer first pixel signals or reference signals; first sensing channels configured to sense and hold the first pixel signals or the reference signals transferred from the switch circuit; second sensing channels configured to sense and hold second pixel signals; and a selection circuit configured to output a sampling signal by selecting the first pixel signals of the first sensing channels and the second pixel signals of the second sensing channels, and thereafter, output the sampling signal by selecting the reference signals of the first sensing channels.
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公开(公告)号:US20200273403A1
公开(公告)日:2020-08-27
申请号:US16762722
申请日:2018-11-07
发明人: Dong Ju Kim , Won Kim , Jeong Hoon Choi , Jung Bae Yun , Jeung Hie Choi
IPC分类号: G09G3/3233
摘要: A driver of a display device is disclosed. In order to solve a signal processing error likely to occur in an analog-digital converter which processes a pixel sensing signal provided from a pixel of a display panel, the pixel sensing signal is converted, or an input range of the analog-digital converter is corrected.
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公开(公告)号:US11488505B2
公开(公告)日:2022-11-01
申请号:US17110060
申请日:2020-12-02
发明人: Taiming Piao , Young Bok Kim , Young Tae Kim , Won Kim
IPC分类号: G09G3/20
摘要: An embodiment is disclosed that makes it possible to reduce the area of a digital-to-analog converter circuit by interpolating one reference voltage and generating a plurality of gamma voltages.
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公开(公告)号:US20200335024A1
公开(公告)日:2020-10-22
申请号:US16851860
申请日:2020-04-17
发明人: Young Bok Kim , Won Kim
IPC分类号: G09G3/20
摘要: A display driving device includes sensing lines configured to sense pixel signals of a display panel; and a voltage limiter provided for each of the sensing lines. The voltage limiter senses a voltage variation of the sensing line, and limits a voltage level of the sensing line to a reference voltage.
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公开(公告)号:US11610553B2
公开(公告)日:2023-03-21
申请号:US17124934
申请日:2020-12-17
发明人: Taiming Piao , Young Bok Kim , Won Kim , Young Ho Shin
IPC分类号: G09G3/3291 , G09G3/3233
摘要: The present disclosure relates to a technology for adjusting differences among integrated circuits, that may occur in a pixel sensing, using bias voltages, and more particularly, a technology for adjusting a gain or an offset of each integrated circuit by adjusting a bias voltage.
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公开(公告)号:US11222598B2
公开(公告)日:2022-01-11
申请号:US16953968
申请日:2020-11-20
发明人: Won Kim , Young Bok Kim , Dong Ju Kim
IPC分类号: G09G3/3275
摘要: The present disclosure discloses a display driving device capable of reducing a chip area and a data transmission time and a display device including the same. The display driving device includes a first source driver and a second source driver. Each of the first source driver and the second source driver may include a sensing circuit configured to sample and hold input signals of a multi-channel, a multiplexer configured to transmit the input signals held by the sensing circuit, an analog-to-digital converter configured to convert, into digital data, the input signals received from the multiplexer, and a transmission circuit configured to transmit the digital data to a timing controller through a bus lane. The sensing circuit of the second source driver may hold the input signals while the first source driver transmits the digital data.
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公开(公告)号:US11200841B2
公开(公告)日:2021-12-14
申请号:US16762722
申请日:2018-11-07
发明人: Dong Ju Kim , Won Kim , Jeong Hoon Choi , Jung Bae Yun , Jeung Hie Choi
IPC分类号: G09G3/3233 , G09G3/3291
摘要: A driver of a display device is disclosed. In order to solve a signal processing error likely to occur in an analog-digital converter which processes a pixel sensing signal provided from a pixel of a display panel, the pixel sensing signal is converted, or an input range of the analog-digital converter is corrected.
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公开(公告)号:US20210158738A1
公开(公告)日:2021-05-27
申请号:US16953719
申请日:2020-11-20
发明人: Dong Ju Kim , Ji Su Son , Won Kim
IPC分类号: G09G3/20
摘要: Provided area sensing circuit capable of accurately sensing characteristics of pixels and a source driver including the same. The sensing circuit may include multiple channels configured to receive a plurality of input signals from a display panel and a sampling circuit configured to sample the plurality of input signals received through the multiple channels and scale a plurality of sampling signals. The sampling circuit may sample the plurality of input signals at the same first time, and may scale the plurality of sampling signals at the same second time.
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公开(公告)号:US11508319B2
公开(公告)日:2022-11-22
申请号:US17459948
申请日:2021-08-27
发明人: Won Kim , Young Bok Kim
IPC分类号: G09G3/3291
摘要: A source driver capable of improving sensing accuracy even when a black image signal is provided to reduce motion blur during a sensing period for sensing signals of pixels of a display panel, and a display device including the same. The source driver includes an output buffer configured to output a source signal; a voltage terminal applied with a black image signal of a preset voltage level; a source output terminal connected to a data line of a display panel; and a switch circuit configured to connect one of an output terminal of the output buffer and the voltage terminal to the source output terminal, wherein the switch circuit connects the voltage terminal to the source output terminal during a black image insertion period of a sensing period in which a pixel of the display panel is sensed.
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