Unitary Light Reflecting Assembly for Backlight Modules
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Solution Overview
Problem
Conventional backlight devices for liquid crystal modules are costly and complex due to the need for multiple components, including a sheet and frame pieces, which increases production costs and complicates the assembly process.
Innovation Solution
A light reflecting assembly for a backlight module is designed using a single, unitary sheet with a center reflecting part and peripheral regions, eliminating the need for separate frame pieces and simplifying the assembly process by forming a one-piece, integrally bent member with trapezoidal peripheral reflecting parts and extension tabs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If multiple components (sheet and frame pieces) are used to form the light reflecting member, then the structural stability is improved, but the device complexity and production cost increase
Solution Approach 1:
The patent combines the sheet and frame pieces into a single integrated light reflecting member. The frame pieces are formed as an integral part of the sheet structure, eliminating the need for separate components and assembly steps while maintaining the structural stability required for supporting the optical sheets and light source.
Solution Approach 2:
The integrated light reflecting member serves multiple functions: it provides the reflective surface for light redirection, acts as a structural frame to support optical sheets and light source, and eliminates the need for separate assembly of multiple components. This multi-functional design reduces device complexity while maintaining structural integrity.
2Stability of the object's composition
If multiple components (sheet and frame pieces) are used to form the light reflecting member, then the structural stability is improved, but the manufacturing cost increases
Solution Approach 1:
The patent merges the sheet and frame pieces into a single molded component. This integration reduces the number of parts that need to be manufactured, stored, and assembled, thereby lowering overall manufacturing costs while maintaining the structural stability required for the backlight device.
Solution Approach 2:
The patent changes the manufacturing approach from assembling multiple components to molding a single integrated part. This parameter change in the manufacturing process eliminates assembly operations and reduces material waste, leading to cost savings while maintaining structural integrity.
3Stability of the object's composition
If multiple components are assembled to form the light reflecting member, then the structural integrity is improved, but the assembly process becomes more complex
Solution Approach 1:
The patent combines multiple components into a single integrated light reflecting member, eliminating the assembly process entirely. The frame pieces are formed as an integral part of the sheet, allowing for direct installation into the backlight device without complex assembly operations, thereby improving productivity.
4Device complexity
If a single unitary sheet is used for the light reflecting member, then the device complexity is reduced, but the structural stability may be compromised
Solution Approach 1:
The patent merges the functions of the sheet and frame pieces into a single integrated structure. The design incorporates frame-like elements directly into the sheet, providing structural support and stability while maintaining the simplicity of a single-component design, thus avoiding compromise on structural integrity.
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 solution reduces production costs, simplifies the assembly process, and ensures even light reflection, thereby maintaining brightness balance without the need for extra components, resulting in a more efficient and cost-effective backlight device.
Implementation Method 1
The light from the linear light source is reflected by the light reflecting member, and shines from the back onto the liquid crystal cell
Data Source
AI summary
A light reflecting assembly for a backlight module includes a cabinet and a light reflecting member. The light reflecting member includes a center reflecting part, four peripheral parts, and a tongue part. The peripheral parts at least partially form trapezoidal peripheral reflecting parts of the light reflecting member, respectively. The tongue part extend from an end edge of one of the peripheral parts towards an adjacent one of the peripheral parts. The tongue part at least partially overlaps with the adjacent one of the peripheral parts while the light reflecting member is attached to the cabinet. The end edge of the one of the peripheral parts is arranged to form a corner section of the light reflecting member at a corner portion of the center reflecting part while the light reflecting member is attached to the cabinet.