Integrated Diffusion Plate for Backlight Module Structural Stability
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Solution Overview
Problem
Special-shaped backlight modules for LCD products have poor structural stability due to complex structures and high assembly complexity, leading to low product yield.
Innovation Solution
A diffusion plate with an accommodating slot for the light source assembly and a support surface for the display panel, which also serves as a fixing portion, simplifies the structure by allowing homogeneous light diffusion and direct mounting, omitting the need for a support backboard and rubber frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a direct type special-shaped backlight module structure is used, then the backlight module can be formed, but the structural stability is poor due to complicated structure and assembling process
Solution Approach 1:
The patent integrates the support backboard, rubber frame, and diffusion plate into a single integrated diffusion plate structure. The diffusion plate's main body structure directly supports both the light source assembly and display panel, eliminating the need for separate support components and thereby simplifying the overall structure while maintaining structural stability.
Solution Approach 2:
The diffusion plate is designed to perform multiple functions simultaneously: it serves as the support backboard, provides the rubber frame structure, and performs light diffusion. This multi-functionality reduces the number of components needed while ensuring the backlight module maintains its required structural integrity and optical performance.
2Productivity
If a direct type special-shaped backlight module structure is used, then the backlight module can be formed, but the product yield is low due to complicated assembling process
Solution Approach 1:
By combining multiple components into a single integrated diffusion plate, the number of assembly steps is significantly reduced. The light source assembly and display panel are directly mounted to the integrated structure, simplifying the assembling process and improving product yield by reducing assembly complexity and potential assembly errors.
3Reliability
If multiple structural components are used in the backlight module, then the light source assembly and display panel can be supported, but the structural stability is poor
Solution Approach 1:
The patent merges the support backboard, rubber frame, and diffusion plate into a single integrated component. This unified structure provides consistent structural support for both the light source assembly and display panel, improving structural stability by eliminating interfaces and potential weak points between separate components.
Solution Approach 2:
The integrated diffusion plate structure performs multiple structural functions simultaneously - providing support, containment, and optical diffusion - which reduces the total number of components while enhancing structural coherence and stability throughout the backlight module.
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 enhances structural stability and simplifies the backlight module structure, improving product yield and light homogeneity while ensuring all light is directed to the display panel.
Implementation Method 1
light emitted by the light source assembly can be homogenized in a space between the bottom wall of the accommodating slot and the light source assembly
Data Source
AI summary
The present invention relates to the field of display technologies and discloses a diffusion plate, a backlight module and a display device. The diffusion plate comprises a main body structure. An accommodating slot for accommodating a light source assembly is formed within the main body structure, a support surface for supporting a display panel is formed on the surface of a side of the bottom wall of the accommodating slot which faces outside of the slot, and the accommodating slot is provided with a fixing portion for fixing the light source assembly. The above diffusion plate not only diffuses the light emitted by the light source assembly homogeneously, but also enables mounting and supporting of the light source assembly and the display panel. Moreover, the backlight module of the diffusion plate omits the structures such as a support backboard and a rubber frame, and further achieves structure simplification. Thus, the backlight module of the diffusion plate has good structural stability.