Display Panel Support Pillars for Mechanical Strength
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Solution Overview
Problem
The existing display panel design with support pillars between the display and encapsulation regions causes deformation of the substrate, leading to poor mechanical strength and uneven force distribution when the panel falls, resulting in potential damage.
Innovation Solution
The introduction of support structures with varying heights between the display and encapsulation regions, where the height of the support structures is greater than the encapsulation region distance but less than the display region distance, reduces substrate deformation and improves mechanical strength by distributing forces more evenly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a support pillar is disposed in the region between the display region and the encapsulation region, then the first substrate is supported in this region, but the first substrate is put up too high causing large deformation and poor mechanical strength
Solution Approach 1:
The support structure is divided into multiple support pillars with different heights arranged in an array, rather than using a single uniform support pillar. This segmentation allows the support structure to provide stable support while avoiding excessive substrate elevation and deformation, thereby improving mechanical strength.
Solution Approach 2:
Different support pillars are designed with different heights according to their local position requirements. The support pillars closer to the display region have different heights than those closer to the encapsulation region, allowing each local area to receive appropriate support without causing overall substrate deformation.
2Volume of moving object
If the distance between substrates in the display region is larger than in the encapsulation region, then the display region has sufficient space for display elements, but the substrate deformation increases due to height differences
Solution Approach 1:
The support structures are designed with curved top surfaces that provide a smooth transition between the display region and encapsulation region. This curvature eliminates sharp edges and abrupt height changes, reducing substrate deformation while maintaining the necessary volume difference between regions.
Solution Approach 2:
The height parameter of the support structure is continuously varied across different regions. By changing the height parameter gradually from the display region to the encapsulation region, the substrate maintains a smooth profile without sharp deformations, while still providing sufficient space in the display region.
3Strength
If support structures with varying heights are used, then substrate deformation is reduced and mechanical strength is improved, but the device complexity increases
Solution Approach 1:
All support pillars are made from the same material and follow the same basic geometric pattern, maintaining homogeneity in material properties and structural form. The only variation is in height, which simplifies manufacturing while achieving the desired mechanical strength improvement.
Solution Approach 2:
Instead of changing the material composition or geometric shape of support pillars, only the height parameter is varied. This single parameter change achieves the goal of reducing substrate deformation while keeping the device complexity minimal and manufacturing straightforward.
Data Source
AI summary
The present disclosure provides a display panel and a display device. The display panel includes a first substrate, a second substrate, and at least one support structure. The first substrate and the second substrate are disposed opposite to each other. A region between the first substrate and the second substrate includes a display region and an encapsulation region surrounding the display region. A distance between the first substrate and the second substrate corresponding to the display region is h1, and a distance between the first substrate and the second substrate corresponding to the encapsulation region is h2, where h1>h2. The at least one support structure is disposed between the display region and the encapsulation region, and each of the at least one support structure has a height of h3, where h2<h3<h1.