Segmented Buffering Member for Display Light-Leakage
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Solution Overview
Problem
Liquid display apparatuses experience light-leakage due to gaps between the top and bottom chassis, which are exacerbated by thermal expansion of components, leading to ineffective light-blocking by the buffering member.
Innovation Solution
A display apparatus with a buffering member comprising a first buffering portion made of a hard material for easy bonding with the top chassis and a second buffering portion made of a soft material with a division structure to minimize the gap between the display panel and the buffering member, preventing light-leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a buffering member is disposed between the display panel and the top chassis to block light, then light-blocking capability is improved, but light-leakage still occurs due to gaps between the top chassis and bottom chassis
Solution Approach 1:
The buffering member is divided into a first buffering portion and a second buffering portion with different material properties. The first portion (contacting top chassis) uses hard material for easy bonding, while the second portion (contacting display panel) uses soft material to minimize gaps and prevent light-leakage.
Solution Approach 2:
Different portions of the buffering member have different material characteristics tailored to their specific functions. The first buffering portion has hard material properties for bonding stability, while the second buffering portion has soft material properties for gap minimization and light-blocking effectiveness.
2Temperature
If components are allowed to expand due to heat, then thermal stability is improved, but gaps between top chassis and bottom chassis increase causing light-leakage
Solution Approach 1:
The buffering member uses soft material in the second buffering portion that can change its physical parameters (compressibility) in response to thermal expansion, maintaining contact pressure and minimizing gaps even when components expand due to heat.
3Ease of manufacture
If a hard material is used for the buffering member, then bonding with top chassis is improved, but excessive pressing of the display panel occurs
Solution Approach 1:
The buffering member is segmented into two portions with different material hardness. The first buffering portion uses hard material for easy bonding with the top chassis, while the second buffering portion uses soft material to protect the display panel from excessive pressing.
Solution Approach 2:
The buffering member has non-uniform material properties: the first portion has hard material characteristics for bonding, while the second portion has soft material characteristics for protection, allowing each region to perform its specific function optimally.
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 effectively prevents light-leakage by ensuring easy bonding with the top chassis and minimizing the gap between the display panel and the buffering member, enhancing the display's light-blocking capabilities.
Implementation Method 1
the second buffering portion includes a first portion and a second portion which are independently compressible
Data Source
AI summary
A display apparatus includes a display panel configured to display an image, a receiving container configured to receive the display panel, a buffering member disposed between the display panel and the receiving container, the buffering member including a first buffering portion which contacts the receiving container, and a second buffering portion which contacts the display panel and includes a first portion and a second portion which are independently compressible.