Display Panel Dummy-Line Mesh for Stable Anode Reset Voltage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display apparatuses face issues with ripple and voltage instability in anode reset lines, leading to degraded image quality, particularly in oxide TFT structures, due to layout limitations and increased process complexity when adding separate low-resistance metal lines.
Innovation Solution
Repurpose existing dummy lines within the display panel as part of the anode reset network by electrically connecting them to the anode reset line, reducing overall resistance without additional routing or fabrication steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate low-resistance metal lines are added to reduce anode reset line resistance, then voltage stability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The dummy line, originally serving no functional purpose, is repurposed to reduce anode reset line resistance. This multi-functional use of existing infrastructure eliminates the need for separate low-resistance metal lines while achieving voltage stability, thereby reducing device complexity and manufacturing cost
2Reliability
If separate low-resistance metal lines are added to reduce anode reset line resistance, then voltage stability is improved, but manufacturing cost increases
Solution Approach 1:
By making the dummy line serve the dual purpose of both dummy structure and resistance-reducing conductor, the manufacturing process is simplified as no additional low-resistance metal line fabrication is required, while still achieving voltage stability
3Reliability
If the anode reset line is widened to reduce resistance, then voltage stability is improved, but layout flexibility is reduced
Solution Approach 1:
The dummy line provides additional conductive path without constraining the anode reset line width, allowing both voltage stability and layout flexibility to be maintained. The dummy line can be positioned independently based on layout requirements while serving its resistance-reducing function
4Use of energy by moving object
If dummy lines are connected to the anode reset line to reduce resistance, then power consumption is reduced, but device complexity increases
Solution Approach 1:
The dummy line is integrated into the anode reset network to provide additional conductive paths, reducing resistance and power consumption. Since the dummy line is already part of the existing structure, this integration adds minimal complexity while achieving significant power reduction
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach stabilizes the anode reset voltage for improved image fidelity, enhances layout design flexibility, and reduces power consumption during reset operations while maintaining manufacturing simplicity.
Implementation Method 1
the anode reset line is electrically connected to the dummy line
Data Source
AI summary
A display apparatus includes a display area configured to display an image, and a non-display area adjacent to the display area. The display apparatus includes a pixel disposed in the display area, the pixel including an anode electrode, an anode reset line configured to reset the anode electrode. The display apparatus further includes a dummy line disposed in the display area. The anode reset line is electrically connected to the dummy line. The dummy line may include multiple lines formed in horizontal and vertical directions and may be positioned on the same layer as other signal lines, enabling effective reuse of existing conductive layers. By electrically connecting the anode reset line to the dummy line, the apparatus can form a mesh-like structure that distributes the anode reset voltage more uniformly across the display area, thereby reducing ripple and improving image quality without requiring additional processing steps.