Gate driving circuit and driving method thereof, display device and control method thereof
A gate drive circuit and gate drive technology, applied in static indicators, digital memory information, instruments, etc., can solve the problems of poor brightness uniformity of display panels, and achieve the effect of improving brightness uniformity
Active Publication Date: 2020-07-28
BOE TECH GRP CO LTD +1
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The invention provides a gate driving circuit and its driving method, a display device and its control method, which can solve the problem of poor brightness uniformity of the display panel in the related art
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0052] 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.
[0053] As known by the inventors, the power supply terminal for providing 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 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 power supply term...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a gate driving circuit and its driving method, a display device and its control method, and belongs to the field of display technology. The gate drive circuit includes: a plurality of cascaded shift register units, each shift register unit is connected to the pixel circuit in the display panel; the output module of each shift register unit includes: an output gate for driving the output terminal A drive transistor for a pole drive signal, the output terminal is used to provide a gate drive signal to the pixel circuit connected to the shift register unit where the output terminal is located; each pixel circuit is also connected to the first power supply terminal, and each pixel circuit is used for Under the control of the gate drive signal from the corresponding shift register unit and the first power supply signal from the first power supply terminal; the width-to-length ratio of the conductive channel of each drive transistor is negatively correlated with the target distance, and the target distance is the distance from the corresponding pixel circuit to the first power supply terminal. The invention improves the brightness uniformity of the display panel.
Description
technical field [0001] The present invention relates to the field of display technology, in particular to a gate driving circuit and a driving method thereof, a display device and a control method thereof. Background technique [0002] A display device generally includes: a display panel and a gate driving circuit for driving pixel units in the display panel to display images. The display panel includes a plurality of pixel units arranged in an array, and each pixel unit is provided with a pixel circuit. The gate driving circuit includes: a plurality of cascaded shift register units, and the plurality of shift register units are used to drive different pixel units to emit light. Wherein, by applying a power supply signal and a gate driving signal output by the shift register unit to the pixel circuit, the pixel unit where the pixel circuit is located can be controlled to emit light. And the voltage of the power signal loaded on the pixel circuit is used to determine the lu...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20
CPCG11C19/28G09G2310/0286G09G3/3266G09G3/20G09G2310/08
Inventor 黄耀黄炜赟曾超
Owner BOE TECH GRP CO LTD