Display Panel Color Resist Opening to Prevent Light-Area Arcing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In high-resolution display panels, the formation of openings can generate an arc towards the light transmission area, affecting the display effect due to the proximity of the color resist block to the light transmission area.
Innovation Solution
A display panel design featuring a substrate with pixel units, where each pixel unit includes a color resist block, a gap area, a light transmission area, and a non-light transmission area, with an opening defined at the edge of the color resist block, a through-hole area, and a notch near the gap area. A compensation member is disposed on the opening's sidewall, forming a block angle structure and a distance-increasing surface to prevent the flow of remaining resist block materials towards the light transmission area, ensuring the through-hole area is not blocked and meets pixel design rules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the opening is defined at an edge of the color resist block to satisfy size requirements of the through hole and opening in high-resolution display panels, then the through hole size and position requirements are met, but an arc toward the light transmission area is generated on the color resist block which affects the display effect
Solution Approach 1:
The patent applies preliminary action by pre-defining the opening position at a specific distance from the light transmission area edge (greater than or equal to a predetermined value) before the through hole formation process. This advance positioning prevents the arc formation problem from occurring in the first place, rather than attempting to correct it after the fact. The opening is strategically placed in the non-light transmission area to ensure that even with potential material flow or processing variations, the light transmission area remains unaffected.
Solution Approach 2:
The patent introduces the non-light transmission area as an intermediary zone between the light transmission area and the color resist block edge. This intermediary area acts as a buffer that absorbs potential harmful effects (such as arc formation or material flow) while protecting the critical light transmission area. The opening is positioned within this intermediary zone, allowing it to serve its function of defining the through hole while maintaining a safety margin from the light transmission area.
2Area of stationary object
If the opening is positioned closer to the light transmission area to optimize pixel design, then the pixel area utilization is improved, but the color resist block may be moved or stripped affecting the opening formation and creating display defects
Solution Approach 1:
The patent applies preliminary action by pre-calculating and pre-defining the optimal opening position that balances area utilization with stability requirements. The opening is positioned at a predetermined distance from the light transmission area edge, which is determined in advance based on process capabilities and reliability requirements. This advance planning ensures that the opening is close enough to maximize pixel area usage while far enough to prevent color resist block instability issues.
Solution Approach 2:
The patent applies parameter changes by optimizing the positional parameter of the opening (its distance from the light transmission area edge). By adjusting this parameter to be greater than or equal to a predetermined value, the patent finds the optimal balance point that maximizes pixel area utilization while maintaining color resist block stability. This parameter optimization allows the system to achieve the best possible performance given the constraints.
3Productivity
If the opening is formed in high-resolution display panels with smaller pixels, then the pixel density is increased, but the difficulty of designing and forming the opening increases due to tighter space constraints
Solution Approach 1:
The patent applies parameter changes by establishing a scalable parameter relationship for opening positioning that works across different resolution levels. The predetermined distance value can be adjusted based on the specific pixel size and density requirements, allowing the same design principle to be applied universally. This parameter-based approach simplifies the design process for high-resolution panels by providing a clear, calculable rule for opening placement rather than requiring complex, case-by-case design efforts.
Solution Approach 2:
The patent applies local quality by creating a specific, optimized opening configuration tailored to the high-resolution display panel context. The opening is positioned with specific dimensional relationships to surrounding features (light transmission area, color resist block, through hole) that are optimized for high-density pixel arrangements. This localized optimization allows the design to achieve high pixel density while maintaining manufacturability through well-defined geometric relationships.
Data Source
AI summary
A display panel is provided and includes a substrate and a plurality of pixel units. Each of the pixel units includes a color resist block, a light transmission area, and a non-light transmission area. An opening is defined at an edge of the color resist block in the non-light transmission area, and a through-hole area is defined in the opening. The opening includes a first sidewall near the light transmission area, a compensation member is disposed at an end of the first sidewall near a gap area, and a block angle structure is formed between the compensation member and the first sidewall.