OLED Display Buffer with Step-Shaped Structure for Shock Absorption
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Solution Overview
Problem
OLED displays are susceptible to defects from external shocks due to their susceptibility to being marked or pressed, which affects their reliability.
Innovation Solution
Incorporating a buffer system with a step-shaped structure between the display panel and the bezel, comprising a peripheral buffer and a central buffer, along with adhesive layers to absorb and distribute pressure, reducing the risk of damage from external shocks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a buffer structure is added between the display panel and bezel, then reliability is improved by preventing defects from external shocks, but device complexity increases due to additional components and assembly steps
Solution Approach 1:
The buffer structure is integrated within the existing bezel assembly, with the buffer positioned in the space between the display panel and bezel. This nested arrangement allows the protective function to be added without requiring a completely separate external structure, thereby limiting the increase in device complexity while achieving improved reliability
Solution Approach 2:
The buffer is pre-installed between the display panel and bezel to provide cushioning against future external shocks. This beforehand cushioning approach prevents defects before they occur, addressing the reliability improvement while maintaining a straightforward structural addition rather than requiring complex active protection systems
2Stability of the object's composition
If adhesive layers are used to secure the buffer, then stability is improved by firmly attaching the buffer to the substrate, but manufacturing precision requirements increase due to adhesive application control
Solution Approach 1:
The adhesive layers are applied only at specific locations where the buffer contacts the substrate, rather than covering the entire buffer surface. This selective adhesive application extracts the bonding function to critical areas only, improving stability while reducing the precision requirements compared to full-surface adhesive application
Solution Approach 2:
Different regions of the buffer-substrate interface have different adhesive requirements. The adhesive layers are concentrated at the contact regions between the buffer and substrate, providing local quality enhancement for stability while minimizing the overall adhesive application area and associated manufacturing precision challenges
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 buffer system effectively prevents the OLED display from being marked or pressed by external shocks, enhancing its reliability and durability.
Implementation Method 1
a buffer disposed between a lower surface of the display panel and the bezel
Implementation Method 2
distribute pressure, thereby preventing damage from external impacts
Implementation Method 3
a first adhesive layer disposed between a substrate and the peripheral buffer and between the substrate and the central buffer
Data Source
AI summary
An organic light-emitting diode display including: a display panel; a bezel on which the display panel is mounted; and a buffer disposed between a lower surface of the display panel and the bezel. The buffer includes a peripheral buffer and a central buffer that has a step-shaped structure. The peripheral buffer is disposed at first and second sides of the central buffer.