Microstructured Optical Film for Reliable Full-Surface Display Lamination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional bonding methods for display devices using adhesive full-surface or frame bonding reduce the reflection/scattering ability of light guide plate patterns, affecting reliability and performance.
Innovation Solution
An optical film with microstructures having specific angles between 40 to 90 degrees is introduced, allowing full-surface lamination with the light guide plate and display module, enhancing light reflection and maintaining structural reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If full-surface bonding is used to bond the light guide plate and display module, then bonding reliability is improved, but the reflection/scattering ability of patterns is reduced
Solution Approach 1:
The patent introduces an optical film as an intermediary layer between the light guide plate and display module. This optical film contains microlens arrays that actively manage light paths, allowing the adhesive to bond surfaces without directly contacting the light guide plate patterns. The microlens arrays redirect light around the adhesive regions, preserving reflection/scattering ability while enabling full-surface bonding for improved reliability.
2Illumination intensity
If frame bonding is used to preserve pattern reflection/scattering ability, then illumination performance is maintained, but bonding reliability is reduced
Solution Approach 1:
The optical film serves as a mediator that enables full-surface bonding without compromising pattern performance. The microlens arrays within the optical film actively redirect light paths to avoid adhesive contact with patterns, allowing the adhesive to cover the entire bonding area for improved reliability while maintaining illumination performance.
3Stability of the object's composition
If adhesive is applied to bond light guide plate and display module, then structural stability is improved, but light reflection ability deteriorates
Solution Approach 1:
The optical film acts as an intermediary layer that decouples the bonding function from the light reflection function. The microlens arrays actively manage light paths to bypass adhesive regions, allowing the adhesive to provide full-surface structural stability without directly interfering with light reflection from the patterns.
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 film with microstructures ensures reliable light reflection and scattering, improving the luminance and uniformity of display devices by enabling full-surface lamination without reducing the light guide plate's reflection/scattering ability.
Implementation Method 1
light emitted from the light source is firstly reflected by the first surface and/or the second surface and reach the display surface
Implementation Method 2
the light guide plate, the optical film, and the display module may be laminated in a full-surface manner, making the display device more reliable
Data Source
AI summary
A display device including a display module and an illuminating module is disclosed. The illuminating module is disposed on a display surface of the display module, and includes a light source, a light guide plate, and an optical film. The optical film is disposed between the display module and the light guide plate, and includes a basal layer and a microstructure layer. The microstructure layer is disposed between a surface of the basal layer and the light guide plate, and includes multiple microstructures. Each microstructure includes a first surface and a second surface. A first angle is between the first surface and a datum plane. A second angle is between the second surface and the datum plane. The first angle and the second angle are greater than or equal to 40 degrees and less than or equal to 90 degrees.