Curved Display Buffer Thickness Optimization
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Solution Overview
Problem
Curved display panels and window members in portable terminals are vulnerable to damage from external impact, leading to potential damage and improper image display due to increased stress on pixels.
Innovation Solution
A display apparatus with a curved portion connected to a flat portion, featuring a buffer with a first thickness and a curved buffer of greater thickness, along with a light blocking layer, heat discharge layer, and emission layer, which reduces impact resistance and heat discharge thickness while improving impact resistance and image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If curved display panels are used, then image quality and appearance are improved, but impact resistance deteriorates due to increased stress on pixels
Solution Approach 1:
The patent applies different thickness specifications of buffering members to different regions of the display panel. The first buffering member has a first thickness specification and the second buffering member has a second thickness specification that is different from the first, allowing optimized protection for curved versus flat portions while maintaining overall impact resistance
Solution Approach 2:
The patent employs multiple buffering members made of different materials or with different properties positioned at different locations. The combination of first and second buffering members with different thickness specifications creates a composite protective structure that addresses both curved and flat portion requirements
2Reliability
If buffering members are added to protect curved portions, then impact resistance is improved, but device thickness increases
Solution Approach 1:
The patent specifies that the first buffering member overlaps the flat portion and has a first thickness specification, while the second buffering member overlaps the curved portion and has a second thickness specification. This localized differentiation allows thickness optimization - thinner buffering where less protection is needed and thicker where impact resistance is most critical for curved portions
Solution Approach 2:
The patent applies buffering members with different thickness specifications selectively to different portions of the display panel rather than uniformly across the entire panel. This partial action approach provides adequate protection where needed while minimizing unnecessary material addition in other areas, thus controlling overall device thickness
3Temperature
If heat discharge layers are added to manage thermal energy, then heat discharge performance is improved, but device complexity increases
Solution Approach 1:
The buffering members serve multiple functions simultaneously: they provide impact resistance for the display panel and also contribute to heat discharge performance. This multi-functionality reduces the need for separate dedicated heat discharge structures, thereby limiting the increase in device complexity while still achieving improved thermal management
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 solution enhances the impact resistance of both flat and curved portions, reducing the likelihood of damage and image distortion, and maintains superior heat discharge properties without increasing thickness.
Implementation Method 1
a heat discharge layer facing the display panel, wherein the buffer may be between the heat discharge layer and the display panel
Implementation Method 2
the heat discharge layer may include a graphite layer
Data Source
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AI summary
A display apparatus including a display panel, a buffer, and a curved buffer. The display panel includes a curved portion connected to a flat portion. The buffer overlaps the flat portion and having a first thickness. The curved buffer is on a same layer as the buffer and overlaps the curved portion, the curved buffer having a second thickness greater than the first thickness.