Display Panel Auxiliary Unit for Scan Signal Edge Sharpness
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Solution Overview
Problem
As display panel sizes increase, transmission delay of driving signals leads to signal distortion, compromising display quality.
Innovation Solution
Incorporating an auxiliary unit within the display area, electrically connected to the scan lines, to enhance the sharpness of the falling or rising edges of the scan signals, thereby mitigating transmission delay-induced distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If display panel size is increased, then display area is expanded, but transmission delay of driving signals increases causing signal distortion
Solution Approach 1:
The patent divides the display area into multiple regions and places auxiliary units at specific locations (e.g., middle of first scan line, or at intersections of scan lines and data lines). This segmentation allows the long transmission path to be broken into shorter segments, with each auxiliary unit boosting the signal locally, thereby reducing overall transmission delay while maintaining large display area.
Solution Approach 2:
The patent introduces auxiliary units as intermediary components between the driving module and the display area. These auxiliary units receive the driving signal and re-transmit it with enhanced strength, acting as signal boosters that mediate the transmission over long distances, thus reducing distortion without increasing panel size.
2Area of stationary object
If display panel size is increased, then display area is expanded, but distortion of driving signals becomes more serious
Solution Approach 1:
The patent applies local quality by placing auxiliary units at specific strategic locations within the display area (such as the middle of the first scan line or at intersections). Each auxiliary unit provides localized signal enhancement in its vicinity, ensuring that signal quality is maintained across the entire large display area without requiring uniform reinforcement throughout.
Solution Approach 2:
The auxiliary units serve as intermediary signal boosters that are strategically positioned to receive and re-transmit driving signals with enhanced strength. This intermediary approach ensures signal quality is maintained across the expanded display area by providing targeted reinforcement at critical transmission points.
3Reliability
If auxiliary unit is added to reduce transmission delay, then signal distortion is alleviated, but device complexity increases
Solution Approach 1:
The patent implements local quality by using simple auxiliary units with standard TFT and capacitor structures placed only at specific strategic locations rather than throughout the entire display area. This localized approach reduces the number of additional components needed, thereby minimizing the increase in device complexity while still effectively reducing signal distortion.
Solution Approach 2:
The patent changes the electrical parameters of the existing scan lines and data lines by introducing auxiliary units that modify signal strength and timing characteristics. This parameter-based approach allows signal quality improvement through electrical adjustment rather than requiring complex structural changes, thus limiting the increase in device complexity.
Data Source
AI summary
The present application provides a display panel and a display device. An N-th auxiliary unit is arranged in a display area of the display panel. An output end of the N-th auxiliary unit is connected to an N-th scan line. By connecting the auxiliary unit arranged in the display area to the corresponding scan line, a falling edge of a scan signal transmitted in the scan line can have sharp falling or a rising edge of the scan signal can have sharp rising, which can alleviate a signal distortion problem caused by transmission delay in the display area.