Optical Module with Adhesion Member for LCD Volume Reduction
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Solution Overview
Problem
Conventional LCD devices have high volumes and weights due to the presence of multiple optical members, which hinders their ability to display high-quality images efficiently.
Innovation Solution
An optical module is designed with a transparent adhesion member having a refractive index of 1.0 to 2.0 and a glass transition temperature of 70° C to -40° C, integrated with optical members such as diffusing plates, brightness enhancing films, and cholesteric liquid crystal films, to reduce volume and weight while maintaining image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple optical members are used to improve image quality, then image quality is improved, but volume and weight increase
Solution Approach 1:
The patent combines multiple optical members (diffusing plate, brightness enhancing film, cholesteric liquid crystal film) with the adhesion member into an integrated optical module. This merging reduces the number of separate components and interfaces, thereby decreasing overall device volume while maintaining the optical functions needed for image quality
Solution Approach 2:
The adhesion member is designed to serve multiple functions simultaneously: it adheres optical members together, provides optical coupling through its refractive index, and prevents bending through its mechanical properties. This multi-functionality eliminates the need for separate structural support components, reducing device volume
2Manufacturing precision
If multiple optical members are used to improve image quality, then image quality is improved, but weight increases
Solution Approach 1:
By merging multiple optical members into a single integrated optical module with shared structural support (the adhesion member), the patent eliminates redundant materials and interfaces, thereby reducing overall device weight while preserving image quality enhancement functions
Solution Approach 2:
The adhesion member is designed as a thin flexible film that provides both mechanical support and optical coupling. This thin-film approach replaces heavier rigid structural components, reducing device weight while maintaining structural integrity
3Volume of stationary object
If adhesion member has high flexibility to reduce volume, then volume is reduced, but bending and separation may occur
Solution Approach 1:
The patent carefully selects and optimizes the physical parameters of the adhesion member, including its glass transition temperature range (-40°C to 70°C) and refractive index (1.0 to 2.0), to achieve the right balance between flexibility for volume reduction and structural stability for preventing bending and separation
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 module significantly reduces the volume and weight of LCD devices while enhancing image quality by combining optical members with a flexible adhesion member that prevents bending and separation, resulting in improved luminance and uniformity.
Implementation Method 1
a transparent adhesion member which is combined with the optical member
Implementation Method 2
an optical member which emits a light by converting characteristics of the light
Implementation Method 3
The transparent adhesion member may have a refractive index of about 1.0 to about 2.0
Data Source
AI summary
A display device comprises an optical module, a light source unit, a container and a display panel. The optical module comprises at least one optical member and a transparent adhesion member combined with the optical member. The optical member has a first modulus of elasticity, and the transparent adhesion member has a second modulus of elasticity that is substantially identical to the first modulus of elasticity. The light source unit is disposed in a light providing region of the display device to generate a light. The container receives the light source unit and the optical module. The display panel is received in the container and disposed in a display region of the display device. The display panel displays an image based on a light passing through the optical module.