Backlight Assembly Mold Frame with Protrusions
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Solution Overview
Problem
Conventional liquid crystal display devices have a large thickness and complex backlight assembly structures, requiring multiple components and a multi-step assembly process, which increases manufacturing costs and makes them less suitable for large-size displays.
Innovation Solution
A simplified backlight assembly design featuring a mold frame with receiving protrusions for the backlight and optical film, combined with elastic pads and baffles, reduces component count and assembly complexity, resulting in a thinner and more cost-effective display device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If conventional backlight assembly structures are used, then the display device can achieve basic display function, but the thickness becomes large and structure becomes complex
Solution Approach 1:
The patent combines the backlight fixing function and optical film positioning function into a single mold frame structure. The mold frame integrates multiple components (backlight holder, optical film holder, elastic pad holder) into one unified structure, reducing the total component count and simplifying the assembly process while achieving thinner display devices.
Solution Approach 2:
The mold frame serves multiple functions simultaneously: it holds the backlight, positions the optical film, provides elastic cushioning through integrated pads, and structures the overall backlight assembly. This multi-functional design eliminates the need for separate components for each function, reducing complexity and thickness.
2Ease of manufacture
If multiple components are used in backlight assembly, then the assembly can provide comprehensive functions, but the assembly process becomes complex and manufacturing cost increases
Solution Approach 1:
The patent merges multiple separate components (backlight holder, optical film holder, elastic pads) into a single integrated mold frame structure. This integration reduces the number of parts that need to be manufactured and assembled, simplifying the manufacturing process and reducing assembly steps while maintaining all necessary functions.
Solution Approach 2:
The mold frame is designed as a universal component that performs multiple functions: structural support, backlight positioning, optical film retention, and elastic cushioning. By making one component multi-functional, the patent eliminates the need for multiple specialized components, reducing both part count and assembly complexity.
3Reliability
If conventional structures are used, then the display device can be assembled, but it provides insufficient protection against external impacts
Solution Approach 1:
The patent incorporates elastic pads within the mold frame structure that provide cushioning protection before external impacts can damage internal components. These pre-positioned elastic elements absorb and distribute impact forces, protecting the backlight and optical film from damage during assembly, transport, or use.
Solution Approach 2:
The protective cushioning function is merged into the structural mold frame itself rather than being a separate protective layer. The elastic pads are integrated into the frame design, providing impact protection while maintaining structural integrity and avoiding additional complexity from separate protective systems.
Data Source
AI summary
The present application discloses a backlight assembly, comprising an optical film; and a frame for retaining the backlight and the optical film. The frame comprises a side wall having a first end surface, a second end surface opposite to the first end surface, a first side surface and a second side surface opposite to the first side surface; and a first receiving protrusion for receiving the backlight; and a second receiving protrusion for receiving the optical film, the first receiving protrusion and the second receiving protrusion protruding from the first side surface of the side wall in a first direction.