Display Panel De-multiplexing Circuit Offset Interference
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Solution Overview
Problem
Conventional display panels are affected by derived pulse signals generated from intersections of signal transmission lines and control lines, which interfere with the de-multiplexed data signals, leading to distorted images.
Innovation Solution
A display panel design that includes a de-multiplexing circuit with a de-multiplexing switch group connected to data and signal transmission lines, and a control line group with opposite voltage levels to balance and offset the interference, ensuring that the control line group is positioned near the pixel array or away from it, thereby preventing image distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If de-multiplexing circuits are used to de-multiplex data signals, then data signal routing is achieved, but derived pulse signals are generated at intersections of signal lines and control lines, affecting picture quality
Solution Approach 1:
The harmful derived pulse signals are extracted and identified as separate entities from the main data signals. By treating the interference as a distinct phenomenon that can be separately managed, the patent applies compensation techniques specifically targeted at removing the harmful effects while preserving the useful data transmission function.
Solution Approach 2:
The patent converts the harmful derived pulse signals into a beneficial compensation mechanism. By introducing control lines with opposite polarity that generate compensating derived pulse signals, the previously harmful interference is transformed into a useful tool for canceling out the original distortion, thereby improving picture quality.
2Extent of automation
If control lines intersect signal transmission lines, then de-multiplexing control is achieved, but derived pulse signals interfere with data signals
Solution Approach 1:
The patent introduces an intermediary compensation mechanism consisting of additional control lines that mediate between the original control signals and the affected data signals. These intermediary control lines generate compensating derived pulse signals that act as a bridge to neutralize the harmful effects while maintaining the automated de-multiplexing control function.
Solution Approach 2:
The patent changes the polarity parameter of the control signals by introducing control lines with opposite polarity. This parameter change allows the system to generate derived pulse signals with opposite polarity that can cancel out the harmful interference, thereby maintaining signal integrity while preserving automated control functionality.
3Object-affected harmful factors
If opposite polarity control signals are used, then derived pulse signals are compensated, but additional control line groups are required
Solution Approach 1:
The patent merges the compensation function with the existing de-multiplexing control structure by integrating opposite polarity control lines into the overall control network. Rather than creating entirely separate compensation circuits, the solution combines multiple functions into a unified control system, thereby reducing overall complexity despite the addition of control lines.
Solution Approach 2:
The control line groups are designed to serve multiple functions: they provide de-multiplexing control while simultaneously generating compensating derived pulse signals. This multi-functionality reduces the need for separate compensation circuits and minimizes the overall increase in device complexity.
Data Source
AI summary
A display panel is disclosed. The display panel includes a de-multiplexing switch group, a signal transmission line, a first control line, and a second control line. The first control line and the second control line are connected to the de-multiplexing switch group. Voltage levels of signals of the first control line and the second control line are opposite to each other, and a number of groups of the first control line and the second control line which intersect the signal transmission line is greater than or equal to zero. Pictures of display panels can be prevented from being affected by intersections of lines.