OLED SUBSTRATE AND OLED DISPLAY APPARATUS

    公开(公告)号:US20210336189A1

    公开(公告)日:2021-10-28

    申请号:US16619083

    申请日:2019-05-13

    Abstract: An organic light-emitting diode (OLED) substrate includes: a base substrate including a display region having a plurality of luminous regions and a non-luminous region separating one or more adjacent luminous regions, the non-luminous region including a plurality of first connection regions; a first electrode layer over the base substrate including a plurality of first electrodes having their projections on the base substrate cover the plurality of luminous regions; a pixel defining layer over the first electrode layer and located at the non-luminous region and defining the plurality of luminous regions, the pixel defining layer is hollowed out at the first connection regions; an electroluminescent functional layer provided over the pixel defining layer; a second electrode layer over the electroluminescent functional layer; and a plurality of conductive structures located at the plurality of first connection regions respectively, and electrically coupled to the second electrode layer.

    Common Voltage Calibration Circuit and Driving Method Thereof, Circuit Board and Display Device

    公开(公告)号:US20210335316A1

    公开(公告)日:2021-10-28

    申请号:US16335054

    申请日:2018-07-17

    Abstract: A common voltage calibration circuit and a driving method thereof, a circuit board and a display device are provided. The common voltage calibration circuit includes a difference circuit, a compensation circuit and a summing circuit; the difference circuit is configured to perform a difference processing on a common voltage provided by the common voltage input terminal and a feedback common voltage provided by the common voltage feedback terminal to output a difference value signal; the compensation circuit is configured to receive the difference value signal and compensate the common voltage based on the difference value signal; and the summing circuit is configured to superimpose at least two compensation signals output by the compensation circuit and output through the common voltage output terminal.

    Pixel Circuit and Driving Method Thereof, and Display Panel

    公开(公告)号:US20210335247A1

    公开(公告)日:2021-10-28

    申请号:US16478419

    申请日:2018-10-17

    Abstract: A pixel circuit and a driving method thereof, and a display panel. The pixel circuit includes a driver circuit, a data writing circuit, a storage circuit, a light emitting element and a bias circuit. The driver circuit controls a drive current for driving the light emitting element to emit light. The data writing circuit writes a data signal to the control terminal of the driver circuit in response to a scan signal. The storage circuit stores the data signal written by the data writing circuit. The light emitting element emits light according to the drive current. The bias circuit applies a bias voltage to the second terminal of the light emitting element in response to a bias starting signal and according to a bias voltage amplitude signal, so as to reverse bias the light emitting element.

    METHOD FOR CONTROLLING CHARGING TIME OF DISPLAY PANEL, AND ELECTRONIC APPARATUS

    公开(公告)号:US20210335245A1

    公开(公告)日:2021-10-28

    申请号:US17259702

    申请日:2020-06-24

    Abstract: A method for controlling a charging time of a display panel includes: during t0+kΔt in a (k+1)-th blanking time, writing a data voltage to a gate of a driving transistor, and detecting a voltage Vk_(j,i) of a second electrode of the driving transistor; during a t0+(k+r)Δt in a (k+1+r)-th blanking time, writing the data voltage to the gate of the driving transistor, and detecting a voltage Vk+i_(j,i) of the second electrode of the driving transistor; determining whether ΔVj,i=Vk+1_ji−Vk_ji is less than or equal to a target voltage difference VT; if ΔVj,i≤VT, taking the T=t0+kΔt as an expected charging time of a sub-pixel; if ΔVj,i>VT, cyclically performing the charging step described above to obtain ΔVj,i=Vk+p+1_(j,i)−Vk+p_(j,i), and comparing ΔVj,i with the target voltage difference VT, until ΔVj,i≤VT, taking t0+(k+p+r−1)Δt as the expected charging time of the sub-pixel. p is taken from 1, and increases by 1 for each cycle.

    PROCESSING METHOD AND PROCESSING DEVICE FOR PIXEL DATA, DISPLAY DEVICE, DISPLAY METHOD, AND COMPUTER READABLE STORAGE MEDIUM

    公开(公告)号:US20210335224A1

    公开(公告)日:2021-10-28

    申请号:US16490395

    申请日:2019-02-15

    Inventor: Wenchao Bao

    Abstract: A processing method and a processing device for pixel data, a display device, a display method, and a storage medium are provided. The processing method includes: determining a target pixel point in pixel points of a display frame image to be revised, a pixel data of each pixel point including S initial pixel data of different primary colors and a white initial pixel data; converting a white initial pixel data in a pixel data of the target pixel point into S equivalent pixel data of the different primary colors; obtaining S target pixel data of the different primary colors and a white target pixel data of the target pixel point according to the S equivalent pixel data and according to S initial pixel data of the different primary colors in the pixel data of the target pixel point, the white target pixel data corresponding to a 0 gray scale.

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