Bending Protection Member for Display Device Water-Proofing
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Solution Overview
Problem
Display devices, especially those used in portable electronic devices, face challenges in maintaining water and moisture resistance, particularly when exposed to accidental submersion or water exposure.
Innovation Solution
The display device incorporates a bending protection member formed in a bending area of the display panel, which enhances reinforcement and water-proofing efficiency. This is achieved by defining a bending area with a bending boundary pattern and improving the arrangement of the bending protection member, boundary pattern, and water-proof tape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bending protection member is formed in the bending area, then reinforcement efficiency and water-proofing are improved, but device complexity increases
Solution Approach 1:
The bending protection member is segmented into multiple portions (first portion and second portion) that are spaced apart from each other. The first portion is disposed adjacent to the bending area while the second portion is disposed adjacent to the display driving circuit. This segmentation allows the protection member to provide targeted reinforcement and water-proofing in critical areas without unnecessarily increasing overall device complexity.
Solution Approach 2:
The bending protection member is specifically formed in the bending area where reinforcement is most needed, rather than uniformly across the entire display panel. This local application of protection provides enhanced water-proofing and structural support precisely where the bending operation creates vulnerability, while minimizing the addition of complex structures in areas that do not require such enhancement.
2Strength
If the bending protection member extends to cover the outer portion overlapping the display area, then reinforcement efficiency is improved, but device complexity increases
Solution Approach 1:
The bending protection member extends partially into the outer portion of the sub-area to overlap the display area, but not completely across the entire outer portion. This partial extension provides sufficient reinforcement to the critical bending region and its transition to the display area, while avoiding the unnecessary complexity that would result from extending the protection member across the entire outer portion.
Data Source
AI summary
A display device includes a display panel including a display area for displaying an image and a sub-area extending in one direction from the display area, where the sub-area includes a bending area bent in a rear direction of the display area, and an outer portion extending from the bending area to overlap the display area, a display driving circuit disposed on the outer portion of the sub-area to drive pixels of the display area, a bending protection member disposed to cover the bending area of the sub-area, a rear surface cover disposed on a rear surface of the display panel to cover the outer portion of the sub-area, and the display driving circuit, and an adhesive tape covering an end of the rear surface cover adjacent to the bending area.