Level Shifter Circuit for Adaptive Gate Pulse Phase Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display devices face challenges in reducing bezel width and power consumption, particularly in adapting the number of phases of a gate pulse without adding a separate register, which is necessary for different types of display panels.
Innovation Solution
A level shifter is designed with a phase controller to determine the number of phases based on input signals, generating control signals and switching signals to produce level-shifted gate pulses, incorporating a pull-up, pull-down, and modulation element with an external voltage, allowing for dynamic adjustment of phases without a separate register.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate register is added to adapt the number of phases of gate pulse for different display panel types, then the adaptability is improved, but the device complexity and power consumption increase
Solution Approach 1:
The level shifter is designed to perform multiple functions: it not only performs level shifting but also determines the number of phases of gate pulses and generates corresponding control signals. This multi-functionality eliminates the need for a separate register, reducing device complexity while maintaining adaptability to different display panel types through a unified circuit design
2Adaptability or versatility
If a separate register is added to adapt the number of phases of gate pulse, then the adaptability is improved, but the power consumption increases
Solution Approach 1:
The phase determination function and level shifting function are merged into a single level shifter circuit. The level shifter determines the number of phases based on input signals and generates appropriate control signals without requiring a separate register, thereby reducing power consumption while maintaining the ability to adapt to different display panel types
3Shape
If the number of phases of gate pulse is increased to reduce bezel width, then the display performance is improved, but the device complexity increases
Solution Approach 1:
The level shifter dynamically determines the number of phases of gate pulses based on input signals (such as the timing relationship between ON and OFF signals) and generates corresponding control signals. This dynamic adaptation allows the system to optimize display performance with different phase numbers without requiring complex fixed-configuratio
4Adaptability or versatility
If different types of display panels require different number of phases of gate pulse, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The level shifter is designed as a universal circuit that can adapt to different display panel types by determining the number of phases from input signals and generating appropriate control signals. This multi-functional design eliminates the need for separate registers or complex configuration circuits, achieving adaptability without increasing device complexity
Data Source
AI summary
A level shifter may include: a phase controller configured to determine the number of phases of a gate pulse, using an on input signal and an off input signal, and generate a control signal according to the determined number; a switching controller configured to generate one or more switching signals in response to the control signal; and an output buffer configured to generate the level-shifted gate pulse in response to the one or more switching signals.