Pixel circuit and driving method thereof, and display device
A pixel circuit and pixel technology, applied in static indicators, instruments, etc., can solve the problems of large circuit board area, large number of pixel compensation circuits, unfavorable realization of narrow frame display panels, etc., to reduce the area, reduce the number, beneficial effect
Active Publication Date: 2020-01-10
BOE TECH GRP CO LTD
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Problems solved by technology
[0005] The present invention provides a pixel circuit, a driving method thereof, and a display device, which can solve the problems in the related art that the number of pixel compensation circuits is large, and the area of the circuit board occupied by the pixel compensation circuits is relatively large, which is not conducive to the realization of a narrow frame display panel. problem, the technical solution is as follows:
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[0053] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe in detail the embodiments of the present invention in conjunction with the accompanying drawings.
[0054] The transistors used in all the embodiments of the present invention can be thin film transistors or field effect transistors or other devices with the same characteristics, and the transistors used in the embodiments of the present invention are mainly switching transistors according to their functions in circuits. Since the source and drain of the switching transistor used here are symmetrical, the source and drain are interchangeable. In the embodiment of the present invention, the source is referred to as the first stage, and the drain is referred to as the second stage. According to the form in the accompanying drawings, it is stipulated that the middle terminal of the transistor is the gate, the signal input terminal is the sou...
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The invention discloses a pixel circuit, a driving method thereof, and a display device, belonging to the field of display technology. The pixel circuit includes a plurality of pixel compensation circuits, and since each pixel compensation circuit can be connected to M light-emitting units located in the same column, that is, one pixel compensation circuit can be used to drive M light-emitting units, so the required Set the number of pixel compensation circuits. Further, since among the M light emission control signal ends included in each group of light emission control signal ends, each light emission control signal end can be connected to a group of pixel compensation circuits (that is, K rows of pixel compensation circuits), thus reducing the number of required settings. The number of signal terminals further reduces the area occupied by the pixel circuit on the circuit board, which is more conducive to the realization of a narrow-frame display panel.
Description
technical field [0001] The present invention relates to the field of display technology, in particular to a pixel circuit, a driving method thereof, and a display device. Background technique [0002] Active Matrix Organic Light Emitting Diode (AMOLED) is a current-mode light-emitting device that can emit light independently. high-performance display panel. [0003] In the related art, a display panel generally includes a plurality of pixel units arranged in an array, and each pixel unit includes a light emitting unit and a pixel compensation circuit connected to the light emitting unit. The pixel compensation circuit can avoid the problem that the magnitude of the current flowing through the light-emitting unit is different due to the drift of the threshold voltage of the driving transistor driving the light-emitting unit, thereby ensuring the uniformity of display brightness of the display panel. [0004] When the number of pixel units in the display panel is large, the ...
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IPC IPC(8): G09G3/3275G09G3/3225
CPCG09G3/3225G09G3/3275G09G2300/0842G09G2300/0861G09G3/3233G09G3/2025G09G2300/0804G09G2310/0297G09G2320/045G09G2300/0426G09G2320/0233G09G2330/021
Inventor 陈亮王磊刘冬妮肖丽玄明花陈小川杨盛际卢鹏程赵德涛丛宁
Owner BOE TECH GRP CO LTD