Bent Display Panel Substrate Segmentation for Narrow Frame Reliability
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Solution Overview
Problem
The wide frames of existing electronic apparatus, such as smartphones, negatively impact user experience by obstructing the visual perception of the display panel.
Innovation Solution
A display panel design featuring a substrate with multiple connected sub-bent portions, where the sum of specific bent angles allows for a multiple bending mechanism, reducing stress and enabling a narrower frame while maintaining structural support through support plates and filler pieces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the frame width is reduced to improve visual perception, then the display panel occupies more screen area, but the structural strength and reliability of the bent portion deteriorates
Solution Approach 1:
The bent portion is divided into multiple sub-bent portions (first sub-bent portion, second sub-bent portion, third sub-bent portion) with different bent angles. This segmentation allows the structure to achieve the required frame width reduction while distributing mechanical stress across multiple segments, thereby maintaining structural reliability.
Solution Approach 2:
Different sub-bent portions are designed with different bent angles to satisfy local requirements. The first sub-bent portion has a bent angle less than 180 degrees, the second has exactly 180 degrees, and the third has a bent angle greater than 180 degrees. This local differentiation optimizes both the frame width and structural strength at different locations.
2Length of stationary object
If the bent portion is bent multiple times to achieve narrow frame, then the frame width is reduced, but the stress on the display panel increases
Solution Approach 1:
The patent changes the bent angle parameters of different sub-bent portions to optimize stress distribution. By setting specific bent angles (less than 180 degrees, exactly 180 degrees, and greater than 180 degrees), the design achieves frame width reduction while controlling stress accumulation through parameter optimization.
Data Source
AI summary
The display panel and the electronic apparatus include: a substrate, wherein the substrate includes a first portion and a bent portion connected to the first portion; wherein the bent portion includes at least a first sub-bent portion and a second sub-bent portion connected to each other, and the first sub-bent portion extends from the first portion, and a bent angle of the first sub-bent portion is less than 180 degrees.