SHIFT REGISTER UNIT AND DRIVING METHOD THEREOF, GATE DRIVING CIRCUIT AND DISPLAY DEVICE

摘要

A shift register unit includes input, output, restoration, reset, reset reinforce, reset reinforce control, and energy storage modules. The input, output, restoration and energy storage modules are connected to a first node. The output module is adapted to output a shift signal at a first electrical level when the voltage at the first node is at the first electrical level. The reset module is connected to the output module, and the reset module is adapted to set the voltage at the output module to a second electrical level. Both the reset reinforce and reset reinforce control modules are connected to a second node, and the reset reinforce control module includes a first and a second transistor. A channel width to length ratio of the first transistor is greater than that of the second transistor. Switch states of the first and second transistors control the voltage at the second node.

主权项

1. A shift register unit comprising:
an input module, an output module, a restoration module, a reset module, a reset reinforce module, a reset reinforce control module, and an energy storage module; wherein, the input module, the output module, the restoration module and the energy storage module are connected to a first node; wherein, the output module comprises an output terminal adapted to output a shift signal at a first electrical level when the voltage at the first node is at the first electrical level; wherein, the reset module is connected to the output terminal of the output module, and the reset module is adapted to set the voltage at the output terminal of the output module to a second electrical level; wherein, both the reset reinforce module and the reset reinforce control module are connected to a second node, and the reset reinforce control module comprises a first transistor and a second transistor, a channel width to length ratio of the first transistor is greater than a channel width to length ratio of the second transistor; wherein, by controlling switch states of the first transistor and the second transistor, the voltage at the second node is controlled; and wherein, the reset reinforce module is adapted to set the voltage at the output terminal of the output module to the second electrical level when the voltage at the second node reaches a start electrical level of the reset reinforce module, and the second electrical level is opposite to the first electrical level.