Shift register and its driving method
A shift register, shift register unit technology, applied in static memory, digital memory information, instruments, etc., can solve problems such as abnormal output levels, and achieve the effects of strong anti-interference ability, reduced area, and stable output signals
Active Publication Date: 2018-06-29
WUHAN TIANMA MICRO ELECTRONICS CO LTD +1
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Problems solved by technology
However, when the external interference causes the IN signal level to be unstable, it will cause the output levels of OUT1 and OUT2 to be abnormal
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[0022] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.
[0023] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.
[0024] see figure 2 Shown is a schematic structural diagram 200 of a shift register according to an embodiment of the present application.
[0025] In this embodiment, the shift register includes a total of N cascaded shift register units R from level 0 to level N-1 0 ~R N-1 . Each shift regi...
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The invention discloses a shift register and a driving method thereof. The shift register in one embodiment comprises N (0th to (N-1)th) cascaded shift register units. Each shift register unit comprises a node potential controller and an output unit. Each node potential controller is used for generating an input signal of the output unit on the basis of a first voltage signal input from a first voltage input end and a second voltage signal input from a second voltage input end. Each output unit is used for generating an output signal of the shift register unit on the basis of the input signal of the output unit and a first clock signal. Each node potential controller comprises a first NAND gate and a second NAND gate. The first NAND gate generates a first output signal on the basis of the first voltage signal and the input signal of the output unit. The second NAND gate generates the input signal of the output unit on the basis of the first output signal and the second voltage signal. The scheme of the invention enhances the anti-interference capability of the shift register and stabilizes the output signal of the shift register.
Description
technical field [0001] The present disclosure generally relates to display technology, and more particularly, to a shift register and a driving method thereof. Background technique [0002] In the existing display technology, a shift register is usually used to output corresponding driving signals to the display panel. The shift register includes a plurality of cascaded shift register units, and each shift register unit can receive an output signal of an adjacent shift register unit and generate an output of the shift register unit of the current stage. [0003] see figure 1 Shown is a circuit structure diagram of an existing shift register unit. in such as figure 1 In the shift register unit shown, CK1 and IN signal levels are used to trigger. When CK1 is high level, the clock inverter R2 is active, and the IN signal controls the output. The level of the IN signal determines the output voltage of OUT1 and OUT2. flat. However, when the external interference causes the I...
Claims
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IPC IPC(8): G09G3/20G11C19/28
Inventor 邹文晖钱栋李玥
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD