Breathing Structure Adhesive for Display Panel Pressure Balance
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Solution Overview
Problem
Conventional liquid crystal display panel modules experience negative pressure or vacuum conditions when under low altitude, leading to the additional member sinking and poor display performance due to pressure differences between the hollow region and the exterior.
Innovation Solution
Incorporating a breathing structure within the adhesive member, such as a notch or non-adhesive region, that extends from the adhesive member to the edge of the display panel, allowing pressure balance and communication with the environment to prevent vacuum conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the hollow region is completely sealed to prevent dust entry and scraping, then sealing performance is improved, but pressure balance deteriorates causing negative pressure and member sinking
Solution Approach 1:
The adhesive member incorporates a breathing structure with capillary channels that function as a porous pathway. This allows controlled pressure equalization between the hollow region and external environment while the adhesive material itself maintains sealing properties, preventing dust and debris penetration through the porous breathing structure.
Solution Approach 2:
The breathing structure acts as an intermediary element within the adhesive member, mediating between the sealed hollow region and external atmosphere. It provides a controlled interface for pressure equalization without compromising the overall sealing integrity, thus resolving the contradiction between complete sealing and pressure balance.
2Adaptability or versatility
If additional members are attached to enhance display functions, then functionality is improved, but susceptibility to negative pressure effects increases
Solution Approach 1:
The breathing structure is built into the adhesive member before additional members are attached. This preliminary incorporation ensures that pressure equalization capability is established in advance, preventing negative pressure buildup that would otherwise cause additional members to sink or detach under altitude changes.
3Strength
If double-side adhesive tape is used to fix the display panel, then fixing strength is improved, but pressure equalization capability deteriorates
Solution Approach 1:
The adhesive member combines adhesive material with integrated breathing structures (capillary channels) to create a composite component. This composite structure simultaneously provides strong fixing capability through the adhesive properties and pressure equalization functionality through the capillary channels, resolving the contradiction between fixing strength and pressure adaptability.
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 breathing structure maintains a non-vacuum condition, preventing the additional member from sinking and ensuring balanced pressure, thus enhancing display performance and dustproofing.
Implementation Method 1
a breathing structure having a capillary produced in the adhesive member
Data Source
AI summary
The present invention relates to a display panel module. The display panel module includes a display panel; a first casing having a hollow region; an addition member arranged on the first casing; a first adhesive member having one side attached on the first casing, another side attached on the display panel and a breathing structure; and a second casing coupled with the first casing to fix the display panel therebetween.