Window Member Edge Geometry for Display Shock Resistance
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Solution Overview
Problem
Display devices face challenges in maintaining the reliability of window members, particularly in preventing cracks from external shocks due to the rigidity difference between the window member and the case member, which can lead to damage at the edges.
Innovation Solution
The window member is designed with specific surface configurations and bending axes to reduce the transmission of external shocks, featuring surfaces that form angles between 60 to 120 degrees and edge surfaces with convex or concave shapes, allowing for a more flexible and shock-absorbing structure that corresponds with the display panel's shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the window member is made rigid to protect the display panel, then protection capability is improved, but susceptibility to cracks from external shocks increases
Solution Approach 1:
The patent changes the geometric parameters of the window member by forming specific angle configurations (60-120 degrees) at the edges and introducing curved surfaces. These parameter changes allow the rigid glass material to distribute impact forces more effectively, reducing stress concentration at edges while maintaining overall protection capability.
Solution Approach 2:
The patent applies curvature to the edge surfaces of the window member, replacing sharp edges with rounded or curved profiles. This curvature distributes impact forces across a larger area and prevents stress concentration at sharp corners, thereby reducing crack initiation while maintaining the rigid protective function.
2Shape
If the window member has sharp edges for aesthetic purposes, then appearance is improved, but vulnerability to damage at edges increases
Solution Approach 1:
The patent rounds the edges of the window member with curved surfaces, eliminating sharp corners that are both aesthetically undesirable and mechanically vulnerable. The curved edges provide a modern aesthetic while distributing impact forces to prevent cracking.
Solution Approach 2:
The patent modifies the edge geometry parameters by creating specific angle configurations (60-120 degrees) and curved profiles. These parameter changes transform the edge shape from sharp and vulnerable to rounded and resilient, simultaneously improving appearance and damage resistance.
Data Source
AI summary
A window member includes: a main surface; a first surface adjacent to a first side of the main surface in a first direction; a second surface adjacent to the first surface in the first direction; a third surface adjacent to a second side crossing the first side of the main surface in a second direction crossing the first direction; a fourth surface adjacent to the third surface in the second direction; and a first edge surface adjacent to the first surface and the third surface, wherein the main surface and a flat surface portion of the second surface form a first angle of 60 degrees or more and 120 degrees or less, and wherein the main surface and a flat surface portion of the fourth surface form a second angle of 60 degrees or more and 120 degrees or less.