Shift Register Unit With Adjustable Pulse Width
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Solution Overview
Problem
Existing gate drive circuits for display devices are unable to generate shift pulses with a relatively large width, limiting their ability to drive display devices with specific resolution and border requirements.
Innovation Solution
A shift register unit with adjustable shift pulse width is designed, comprising an inputting unit, outputting unit, reset unit, first and second control units, and nodes, allowing for adjustable pulse width by controlling transistor and capacitor configurations, enabling cascaded shift register units to produce pulses with varying widths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional shift register units are used with fixed pulse width, then the circuit structure is simple, but the shift pulse width cannot be adjusted to meet display device requirements
Solution Approach 1:
The patent applies dynamics by making the shift pulse width adjustable rather than fixed. The control signal input terminal allows dynamic adjustment of the shift pulse width parameter, enabling the circuit to adapt to different display device requirements while maintaining a relatively simple cascaded shift register structure.
Solution Approach 2:
The patent changes the parameter of shift pulse width from a fixed value to an adjustable parameter. By introducing a control signal input terminal that accepts control signals, the pulse width can be modified without changing the fundamental circuit architecture, thus achieving adaptability while controlling complexity.
2Duration of action of moving object
If the shift pulse width is increased to meet display device requirements, then the display device can be properly driven, but conventional shift register units cannot generate such pulses
Solution Approach 1:
The patent directly addresses this by enabling parameter change in the shift pulse width. The control signal input terminal receives control signals that adjust the width of the shift pulse, allowing the circuit to generate pulses with durations suitable for driving display devices with specific resolution and border requirements.
Solution Approach 2:
The patent achieves universality by designing the shift register unit to be compatible with multiple display device requirements through adjustable pulse width. The same cascaded shift register structure can drive different display devices by simply modifying the control signal parameters, enhancing versatility without requiring different circuit designs.
Data Source
AI summary
A shift register unit and a method for driving the shift register unit, a gate drive circuit and a display device are provided. The shift register unit includes an inputting unit, an outputting unit, a reset unit, a first control unit and a second control unit, a first node, a second node, a third node, a shift signal outputting terminal and multiple inputting terminals. A width of a shift pulse output by the shift register unit may be adjusted by adjusting a width of a shift pulse input to the shift register unit, and the output shift pulse and the input shift pulse have an identical width.