Split-Type Backlight Module for Compact LCD Design
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Solution Overview
Problem
Current liquid crystal display devices face challenges in achieving a compact design due to the integrated structure of display panels and backlight modules, which increases thickness, complicates maintenance, and raises costs.
Innovation Solution
A split-type backlight module design where the backlight module is separated from the display panel and comprises a backplate, light source plate, diffusion plate, and optical film, with a light collecting plate that adjusts the projection range of the surface light source, allowing for a thinner and more flexible design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the backlight module is integrated with the display panel, then the assembly is compact, but the thickness of the display device increases
Solution Approach 1:
The backlight module is segmented from the display panel, creating an independent removable unit. This allows the backlight module to be positioned behind the display panel without adding to the front thickness, while maintaining a compact overall assembly through modular design
Solution Approach 2:
The backlight module is relocated to the rear dimension behind the display panel, utilizing the z-axis space rather than increasing front-facing thickness. This dimensional repositioning achieves compact integration without compromising thickness requirements
2Stability of the object's composition
If the backlight module is integrated with the display panel, then the assembly is unified, but the maintenance and repair complexity increases
Solution Approach 1:
The backlight module is designed as a separate removable segment from the display panel assembly. This segmentation enables independent access to the backlight module for maintenance and repair operations without disassembling the entire display panel, reducing maintenance complexity while preserving assembly unity during normal operation
3Area of stationary object
If the backlight module size matches the display panel size, then the light coverage is complete, but the cost increases
Solution Approach 1:
The standardized backlight module design with universal mounting interfaces can serve multiple display panel sizes through adjustable positioning mechanisms. This multi-functionality allows a single backlight module design to cover different panel dimensions, reducing manufacturing costs while maintaining complete light coverage through flexible configuration
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
This design enables a compact liquid crystal display device with simplified maintenance and reduced costs, while improving product competitiveness and light utilization efficiency.
Implementation Method 1
light emitted from the light source plate passes through the diffusion plate and the optical film to form a uniform surface light source
Implementation Method 2
light emitted from the light source plate passes through the diffusion plate and the optical film to form a uniform surface light source projected onto the display panel
Data Source
AI summary
A liquid crystal display device includes a display panel; a base utilized to support the display panel; and a split-type backlight module disposed corresponding to an incident surface of the display panel. The split-type backlight module includes a backplate, a light source plate, a diffusion plate, and an optical film. Light emitted from the light source plate passes through the diffusion plate and the optical film to form a uniform surface light source projected onto the display panel.