Elastic Optical Pattern Layer for LCD Damage Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing prism sheets in liquid crystal displays are prone to damage from external forces, leading to reduced productivity and increased costs due to image distortion and luminance deterioration, especially in thin and portable devices where pressure is frequently applied.
Innovation Solution
An optical member with an optical pattern layer that combines adhesion and elasticity, formed using a mixture of adhesion-providing main materials and elasticity-providing (meth)acrylate compounds, allowing the layer to deform under external force and restore to its original shape, thereby minimizing damage and improving assembly efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a rigid optical pattern layer is used to maintain structural integrity, then manufacturing precision is improved, but reliability deteriorates due to damage from external forces
Solution Approach 1:
The patent changes the physical-chemical parameters of the optical pattern layer by incorporating elastic materials and adjusting the refractive index to enable reversible deformation under external force, allowing the layer to return to its original state and maintain optical functionality despite mechanical stress
Solution Approach 2:
The patent uses composite materials by combining resin materials with elastic materials in the optical pattern layer, creating a material system that exhibits both structural integrity and elastic recovery properties, thereby resisting damage from external forces while maintaining manufacturing precision
2Illumination intensity
If multiple prism sheets are stacked to improve luminance, then illumination intensity is improved, but device complexity increases due to layer deformation and image distortion
Solution Approach 1:
The patent modifies the optical parameters of each prism sheet layer by controlling the refractive index and elastic properties, enabling the stacked layers to maintain proper optical alignment and reduce image distortion even when subjected to external pressure, thus simplifying the overall device structure while maintaining high luminance
3Weight of moving object
If the liquid crystal panel is thinned to reduce device weight and size, then weight and volume are reduced, but reliability deteriorates due to increased susceptibility to pressure damage
Solution Approach 1:
The patent employs composite materials in the optical pattern layer that combine structural support with elastic recovery capabilities, providing enhanced mechanical protection against pressure damage while maintaining the thinned profile and reduced weight of the liquid crystal panel
Solution Approach 2:
The patent incorporates elastic materials in advance within the optical pattern layer to provide cushioning and shock absorption capabilities before external pressure is applied, protecting the thinned panel structure from damage while maintaining lightweight design
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 optical member with elastic restoring force enhances durability and productivity by preventing damage from external forces and maintaining luminance, allowing for efficient assembly and reduced image distortion in liquid crystal displays.
Implementation Method 1
at least a partial region of the optical pattern layer has a characteristic in which the partial region is deformed when external force is applied and restored when the external force is removed
Implementation Method 2
an optical pattern layer provided on the base film and having adhesion
Data Source
AI summary
Provided are an optical member having adhesion and elastic restoring force, and a light source device and a display device including the same, the optical member including: a base film; an optical pattern layer provided on the base film and having adhesion; and an upper film partially adhering onto the optical pattern layer, in which at least a partial region of the optical pattern layer has a characteristic in which the partial region is deformed when external force is applied and restored when the external force is removed, and it is easy to assemble a product to improve productivity, and the elastic restoring force is excellent to suppress damage due to the external force.