Driving method and device thereof, display control method and device thereof and display panel
A display panel, gate drive technology, applied in static indicators, digital memory information, instruments, etc., can solve the problems of different distances and affect the brightness uniformity of the display panel, and achieve the effect of improving the brightness uniformity
Pending Publication Date: 2019-08-30
BOE TECH GRP CO LTD +1
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Problems solved by technology
[0005] The invention provides a driving method of a shift register unit and its device, a display control method of a display panel and its device, and a display panel, which can solve the problem of affecting the display due to the different distances between different pixel units and the first power supply terminal in the related art. The problem of brightness uniformity of the panel
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[0073] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0074] As known by the inventors, the first power terminal for supplying power signals to the pixel circuits in the display panel is usually arranged at one end (eg, the lower end) of the display panel. When the power signal provided by the first power supply terminal is loaded on the pixel circuit, the wire used to transmit the power signal will pass through the metal layer resistor network in the display area, and a mutual capacitance will be formed between the metal layer resistor network and the wire , the voltage of the power signal transmitted on the wire will be attenuated to a certain extent, and the degree of attenuation of the voltage is positively related to the distance from the corresponding pixel circuit to the first power...
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The invention discloses a driving method and device of a shift register unit, a display control method and device of a display panel and the display panel, and belongs to the technical field of display. The shift register unit is used for providing a grid driving signal for a pixel circuit in the display panel, the grid driving signal is used for controlling the duration of charging the pixel circuit, the method comprises the following steps: obtaining a target distance from the pixel circuit to a first power supply end in the display panel, wherein the pixel circuit is used for controlling alight-emitting device connected with the pixel circuit to emit light under the control of the grid driving signal and the first power supply signal from the first power supply end; determining a target charging duration of the pixel circuit based on the target distance, wherein the target charging duration is in negative correlation with the target distance; and controlling the shift register unitto provide a gate driving signal at an effective level for the pixel circuit within the target charging duration. The brightness uniformity of the display panel is improved.
Description
technical field [0001] The present invention relates to the field of display technology, in particular to a driving method and device for a shift register unit, a display control method and device for a display panel, and a display panel. Background technique [0002] A display panel generally includes: a plurality of pixel units arranged in an array and a gate driving circuit for driving the pixel units to display images. Each pixel unit is provided with a pixel circuit and a light emitting device. The gate driving circuit includes: a plurality of cascaded shift register units. The plurality of shift register units correspond to pixel circuits in the plurality of pixel units. Wherein, by loading the power supply signal and the gate drive signal output by the corresponding shift register unit on the pixel circuit, the charging process of the pixel circuit can be controlled, and then the light emitting device can be controlled to emit light. And the voltage of the power si...
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Login to View More IPC IPC(8): G09G3/20G11C19/28
CPCG09G3/20G11C19/28G09G2310/0286
Inventor 冯雷郑中基马霄
Owner BOE TECH GRP CO LTD