LCD Impact Damping Member for Touch Panel Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Liquid crystal display (LCD) devices are susceptible to damage from external impacts or vibrations when a functional member, such as a touch panel, is attached, particularly affecting the edge regions of the TFT array substrate.
Innovation Solution
Incorporating an impact damping member and a functional member with a tempered substrate and anti-reflect layer on the LCD panel, along with an adhesion layer to absorb and distribute impact, and ensuring the functional member is sized to cover the entire LC panel with a longer length to protect the TFT array substrate edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a functional member such as a touch panel is attached onto the LC panel, then the device gains additional functionality and larger display area, but the LC panel becomes more susceptible to external impact and vibration damage
Solution Approach 1:
An impact damping member is introduced as an intermediary component between the functional member (touch panel) and the LC panel. This mediator absorbs and dissipates impact energy through its viscoelastic material properties, preventing direct transmission of harmful forces to the fragile LC panel while allowing the functional member to remain attached and operational.
Solution Approach 2:
The impact damping member utilizes viscoelastic composite materials that combine the benefits of elasticity and viscosity to effectively dampen vibrations and impacts. This composite material approach allows the system to maintain both the functional capabilities of the attached components and the structural protection of the LC panel simultaneously.
2Area of stationary object
If the functional member is sized to cover the entire LC panel including edge regions, then protection coverage is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The protection system is segmented into distinct functional layers: the impact damping member as a separate component with optimized dimensions, and the functional member attached thereto. This segmentation allows each component to be manufactured and designed independently with optimal characteristics, reducing overall system complexity while achieving comprehensive edge coverage.
Solution Approach 2:
The impact damping member is designed with specific local properties at different regions - particularly reinforced at edge regions where impact susceptibility is highest. This local quality optimization provides enhanced protection where needed most without requiring uniform complexity across the entire structure, thereby reducing overall device complexity.
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 damage to the LCD panel by distributing and absorbing external impacts, reducing reflectivity, and maintaining structural integrity during vibrations and collisions.
Implementation Method 1
an impact damping member disposed to be spacing from one or more sides of the functional member, for absorbing an impact of the functional member when the LC panel moves
Implementation Method 2
an adhesion layer to absorb and distribute impact
Data Source
AI summary
An LCD device capable of preventing damage of an LC panel by an impact damping member or through a design modification of a functional member when a functional plate such as a touch panel or the functional member is attached onto the LC panel. The LCD device comprises an LC panel, a backlight unit disposed below the LC panel for providing light, a functional member disposed on the LC panel within a size range of the LC panel, and an impact damping member disposed to be spacing from one or more sides of the functional member for absorbing an impact of the functional member when the LC panel moves.