Display Substrate Opening Layout for Impact Stress Relief
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional display apparatuses with opening areas are prone to damage at the boundaries of these openings when subjected to external impacts due to stress concentration, which can lead to structural damage.
Innovation Solution
The display apparatus is designed with a substrate featuring first and second regions that are symmetrically arranged and spaced apart, with specific distances and orientations relative to the edges of the substrate, and includes through holes in these regions to distribute stress more evenly, enhancing durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If opening areas are arranged closely to accommodate various apparatuses, then the device functionality is improved, but stress concentration at the boundary increases causing damage
Solution Approach 1:
The patent applies local quality by creating a non-uniform thickness profile in the substrate. The substrate has a first thickness in the first opening area and a second thickness in the second opening area, with the second thickness being greater than the first. This localized thickness variation reinforces specific boundary regions that are more prone to stress concentration, thereby improving boundary strength while maintaining the functional benefits of multiple opening areas.
2Adaptability or versatility
If multiple opening areas are included in the substrate, then various apparatuses can be arranged, but stress concentration at boundaries increases under external impact
Solution Approach 1:
The patent implements local quality by varying the substrate thickness at different opening areas. The substrate has a first thickness in the first opening area and a second thickness in the second opening area, where the second thickness is greater. This localized reinforcement strategy targets specific vulnerable regions, improving overall substrate reliability and durability under external impact while preserving the ability to arrange multiple apparatuses.
3Device complexity
If opening areas are positioned to optimize device layout, then space utilization is improved, but stress distribution becomes uneven under impact
Solution Approach 1:
The patent addresses stress distribution uniformity through local quality by creating different substrate thicknesses at different opening areas. The substrate has a first thickness in the first opening area and a second thickness in the second opening area, with the second thickness being greater. This compensates for uneven stress distribution by providing additional material strength at regions experiencing higher stress, thereby improving overall stress distribution uniformity while maintaining optimized device layout.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A display apparatus includes a substrate including a first region (R1) and a second region (R2) spaced apart from each other in a first direction, and a plurality of display elements arranged in a display area (DA) in which the first region and the second region are disposed. The first region and the second region are circular, a diameter of the first region is about equal to a diameter of the second region.