Display Panel Same-Layer Anti-Crack Protection Around Openings
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Solution Overview
Problem
Existing display panels with hole-digging designs in the active area have limited anti-cracking effectiveness at the edge of the opening, leading to potential damage to the display and touch layers, which affects the display and touch functions.
Innovation Solution
Incorporating an anti-crack protective layer made of the same material as the touch electrode layer in the same layer around the opening area to disperse stress and prevent cracks from spreading, using the ductility of metal materials to enhance crack resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If hole-digging design is implemented in the active area to improve screen-to-body ratio, then visual impact and immersion are enhanced, but crack resistance at the opening edge deteriorates
Solution Approach 1:
The anti-crack protective layer is formed in advance around the opening area before the opening is created. This preliminary protective structure prevents cracks from spreading to the active area when the opening is subsequently formed, thus resolving the contradiction between achieving high screen-to-body ratio and maintaining crack resistance
Solution Approach 2:
The anti-crack protective layer acts as an intermediary barrier between the opening edge and the active area. It absorbs and disperses stress concentration at the opening edge, preventing crack propagation into the active area while allowing the hole-digging design to maintain its visual impact
2Reliability
If anti-crack protective layer is added around the opening area, then crack resistance is improved, but manufacturing complexity increases
Solution Approach 1:
The anti-crack protective layer is merged with the existing touch electrode layer by using the same material and forming them in the same layer during the manufacturing process. This integration approach improves crack resistance without significantly increasing manufacturing complexity, as both layers are created simultaneously using identical materials and processes
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The anti-crack protective layer effectively prevents cracks from spreading to the active and touch areas, ensuring the display and touch functions are maintained, without altering the existing manufacturing process.
Implementation Method 1
using the ductility of metal materials to enhance crack resistance
Data Source
AI summary
A display panel, which belongs to the technical field of display devices. The display panel includes an opening area (20) provided with an opening; an active area (70) at least partially surrounding the opening area (20); and a first anti-crack area (40). The display panel in the first anti-crack area (40) further includes: at least one circle of anti-crack protective layer (41); the active area (70) includes at least one touch electrode layer (71) that is located on an encapsulation layer (12); and the anti-crack protective layer (41) and at least one of the at least one touch electrode layer (71) are arranged in a same layer and with a same material. The anti-crack protective layer (41) of the display panel of the present disclosure may improve the anti-crack ability of the area surrounding the digging holes.