Level shift circuit and driving method thereof, and display device
A technology for transferring circuits and levels, applied to static indicators, instruments, etc., can solve problems such as poor display effects of display devices, achieve the effects of improving horizontal stripes, good display effects, and reduced static current
Active Publication Date: 2021-11-02
BOE TECH GRP CO LTD +1
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Problems solved by technology
[0005] The present invention provides a level transfer circuit, its driving method, and a display device, which can solve the problem of poor display effect of the display device in the related art, and the technical solution is as follows:
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[0048] 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.
[0049] 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 level transfer circuit, a driving method thereof, and a display device. The circuit includes: a level transfer sub-circuit and a switch control sub-circuit, the switch control sub-circuit is connected with the drive signal terminal, the first power supply terminal, the second power supply terminal and the level shift sub-circuit. The switch control subcircuit controls the first power supply terminal and the second power supply terminal and the level shift subcircuit to turn off when there is no drive signal input to the drive signal terminal. That is, the first power terminal and the second power terminal cannot input power signals to the level shifting sub-circuit, and the level shifting sub-circuit does not generate quiescent current. Compared with when no driving signal is input, the first power supply terminal and the second power supply terminal input power supply signals to the level shift subcircuit, and the level shift subcircuit generates static current. The static current of the level transfer sub-circuit of the present invention is reduced, the discharge time of the first power supply terminal and the second power supply terminal is prolonged, the residual charge can be effectively released, and the horizontal streak phenomenon is improved. The display effect of the display device is better.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a level transfer circuit, a driving method thereof, and a display device. Background technique [0002] The display device generally includes a gate drive circuit for driving the pixel unit to emit light, and the gate drive circuit can input the gate drive signal to the pixel unit under the control of the drive signal. However, due to the low potential of the driving signal (such as a clock signal or a turn-on signal) provided to the gate driving circuit, it may not be possible to fully turn on the transistors in the gate driving circuit. A level shifting circuit can amplify one driving signal and then provide it to the gate driving circuit. [0003] In the related art, in order to adapt to gate driving circuits with various structures, the number of level shifting circuits provided in the display device is generally more than the number of driving signal terminals in the gate ...
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IPC IPC(8): G09G3/20
CPCG09G3/20
Inventor 张鑫孔小丽赖意强李强龙许炜泽翁祖伟翁彬韩久剑
Owner BOE TECH GRP CO LTD