Electroluminescence display apparatus and driving method thereof

    公开(公告)号:US11557258B2

    公开(公告)日:2023-01-17

    申请号:US17743565

    申请日:2022-05-13

    Abstract: In an electroluminescence display apparatus and a driving method of an electroluminescence display apparatus, the electroluminescence display apparatus includes a pixel connected to a data line and a reference voltage line, the pixel including a driving element configured to generate a driving current based on a sensing data voltage supplied through the data line and a reference voltage supplied through the reference voltage line, and a level of the driving current being proportional to a level of the sensing data voltage, a comparison and tracking circuit configured to previously determine a target current range between a reference low current and a reference high current and change current tracking data for adjusting a level of the sensing data voltage until the driving current input through the reference voltage line is within the target current range, and a digital-to-analog converter configured to adjust a level of the sensing data voltage so as to be proportional to a size of the current tracking data and supply the level-adjusted sensing data voltage to the data line.

    Electroluminescence display apparatus for compensating luminance deviation

    公开(公告)号:US11580896B2

    公开(公告)日:2023-02-14

    申请号:US17469649

    申请日:2021-09-08

    Abstract: An electroluminescence display apparatus includes a display panel including a first pixel and a second pixel, a first current integrator connected to the first pixel through a first sensing channel to sense a first current from the first pixel to generate a first output voltage, a second current integrator connected to the second pixel through a second sensing channel to sense a second current from the second pixel to generate a second output voltage, and a sampling capacitor connected to an output terminal of the first current integrator at one electrode thereof and connected to an output terminal of the second current integrator at the other electrode thereof, thereby sampling the first output voltage and the second output voltage.

    Electroluminescent Display Device

    公开(公告)号:US20220208095A1

    公开(公告)日:2022-06-30

    申请号:US17538477

    申请日:2021-11-30

    Abstract: An electroluminescent display device according to an embodiment of the present disclosure includes a pixel including a driving element having a gate electrode connected to a data line and a source electrode connected to a readout line, a sensing circuit configured to sense a voltage of the readout line which changes according to a pixel current flowing through the driving element during sensing operation, and a boosting circuit connected between the data line and the readout line and configured to change a voltage of the data line according to the changed voltage in the readout line during the sensing operation.

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