Display Panel Select Signal Drive Circuit Voltage Frequency Reduction
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Solution Overview
Problem
The traditional drive circuit for display panels experiences a high frequency of voltage level changes in the select signal when switching between pixel lines, leading to inefficiencies in controlling pixel units.
Innovation Solution
A drive circuit with a select module comprising multiple select switch combinations that receive and output data signals based on select signals, reducing the voltage level changing frequency by synchronizing the high and low voltage durations of the select signals with the scan signal, thereby optimizing the control of current channels between pixel columns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the select signal voltage level changes frequently to switch between pixel lines, then the pixel line switching control is achieved, but the voltage level changing frequency increases causing drive circuit inefficiency
Solution Approach 1:
The pixel array is divided into multiple pixel columns (first pixel column, second pixel column, third pixel column, etc.), and the select signal is segmented to control different pixel columns at different times. This segmentation allows the drive circuit to process one pixel column at a time, reducing the frequency of voltage level changes in the select signal while still achieving comprehensive control over all pixel lines.
2Ease of operation
If the select signal voltage level changes frequently to switch between pixel lines, then the pixel line switching control is achieved, but the wiring complexity increases
Solution Approach 1:
The pixel array is divided into multiple pixel columns (first pixel column, second pixel column, third pixel column, etc.), and the select signal is segmented to control different pixel columns at different times. This segmentation allows the drive circuit to process one pixel column at a time, reducing the frequency of voltage level changes in the select signal while still achieving comprehensive control over all pixel lines.
3Manufacturing precision
If multiple select switches are used to control different pixel columns, then the control precision is improved, but the device complexity increases
Solution Approach 1:
The pixel array is divided into multiple pixel columns (first pixel column, second pixel column, third pixel column, etc.), and the select signal is segmented to control different pixel columns at different times. This segmentation allows the drive circuit to process one pixel column at a time, reducing the frequency of voltage level changes in the select signal while still achieving comprehensive control over all pixel lines.
Solution Approach 2:
Multiple select switches (first select switch, second select switch, third select switch, etc.) are merged into a unified select module that receives a single select signal and distributes it to control different pixel columns. This merging approach maintains control precision while reducing overall system complexity through integrated design.
Data Source
AI summary
The present invention discloses a display panel and a drive circuit thereof. The drive circuit comprises: a data signal providing module, generating a data signal; a first select signal generation module, providing a first select signal; a second select signal generation module, providing a second select signal; a select module, comprising a select switch combination receives a first, a second select signal, and outputs the data signal to the pixel array. The present invention can reduce the voltage level changing frequency of the select signal.