Display Device Shielding Layer for Rounded Corners
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Liquid crystal display panels with rounded corners suffer from a poor display effect due to the visibility of zigzag boundaries, which affects user experience.
Innovation Solution
A method for manufacturing a display device involves providing an array substrate with pixel unit areas, defining a dividing line to separate displaying and shielding areas, calculating sub-pixel areas based on light extraction efficiencies, and forming a shielding layer on the array substrate to optimize light path management, ensuring uniform light extraction across the display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a shielding layer is used to shield pixel units in a conventional display panel, then the manufacturing process is simplified, but the rounded corners appear with visible zigzag boundaries resulting in poor display effect
Solution Approach 1:
The patent applies local quality by differentiating the treatment of pixel units based on their position. Pixel units in the display area maintain standard characteristics, while pixel units in the rounded corner area have adjusted shielding layer patterns and light extraction properties. This localized differentiation allows the rounded corners to appear smooth without affecting the overall manufacturing simplicity.
Solution Approach 2:
The patent segments the display panel into distinct regions: a display area with standard pixel units and a rounded corner area with specially treated pixel units. By dividing the pixel units into different types based on their location, the patent enables independent optimization of each region, achieving smooth rounded corners while maintaining ease of manufacture through standardized processes for the majority of the panel.
2Productivity
If pixel units are uniformly arranged across the entire panel including rounded corners, then the manufacturing process is simple, but the display effect deteriorates due to visible zigzag boundaries at the rounded corners
Solution Approach 1:
The patent implements local quality by creating different pixel unit configurations for different locations. The display area uses standard uniformly arranged pixel units for high productivity, while the rounded corner area uses pixel units with adjusted shielding layers and light extraction characteristics to achieve smooth visual transitions, thereby maintaining both manufacturing efficiency and display quality.
Solution Approach 2:
The patent segments the pixel array into display area pixel units and rounded corner pixel units. This segmentation allows the majority of the panel to be manufactured with simple uniform patterns for high productivity, while the rounded corner region receives specialized treatment to ensure display quality, resolving the contradiction between manufacturing efficiency and display quality.
3Reliability
If the shielding layer covers the entire pixel area including rounded corners, then the shielding function is maximized, but the light extraction efficiency decreases due to blocked light paths
Solution Approach 1:
The patent applies local quality by configuring the shielding layer differently in different regions. In the display area, the shielding layer provides comprehensive coverage for reliable shielding. In the rounded corner area, the shielding layer is selectively positioned to maintain shielding function while preserving light extraction paths, thereby optimizing both shielding reliability and light extraction efficiency through location-specific design.
Solution Approach 2:
The patent segments the shielding layer coverage into full coverage areas (display region) and partial coverage areas (rounded corner region). This segmentation allows the shielding function to be maximized where needed while maintaining light extraction efficiency in the rounded corners, resolving the contradiction between shielding reliability and energy efficiency.
Data Source
AI summary
The present invention provides a method for manufacturing a display device includes providing an array substrate with a plurality of pixel unit areas formed on a surface thereof; defining a dividing line; dividing the pixel unit areas to a pixel calculating area, a predetermined displaying area, and a predetermined shielding area, and dividing the pixel calculating area to a first part and a second part by the dividing line; calculating areas of sub pixels according to light extraction efficiencies and effective light extraction areas of the sub pixels; forming a shielding layer according to the areas of the sub pixels.