Integrated Backplate Design for Compact LCD Modules
Solution Overview
Problem
Existing backlight modules are bulky, complex, and costly due to the use of multiple parts, making it difficult to reduce weight and thickness, and previous designs failed to effectively narrow the side frames.
Innovation Solution
A backlight module design featuring a backplate with recesses for receiving the light guide plate and light sources, eliminating the need for auxiliary frames, with a baseplate, side plates, and top plates forming recesses for secure fixation, and using display panel positioning blocks and fixing mechanisms for compact assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple parts such as plastic frame are used to assemble the backlight module, then the assembling process becomes complex and the structure becomes bulky, but the structural stability and fixation reliability are improved
Solution Approach 1:
The patent integrates the backplate and plastic frame into a single integrated backplate structure. The backplate includes a base plate with side plates extending upward and top plates extending inward, forming an integrated assembly structure that eliminates the need for separate plastic frames while maintaining structural stability and fixation reliability.
Solution Approach 2:
The integrated backplate serves multiple functions simultaneously: it acts as the base structure, provides side walls for mounting, forms top surfaces for component placement, and integrates fixation features. This multi-functional design reduces the number of parts while improving assembly simplicity and reliability.
2Stability of the object's composition
If multiple parts and auxiliary frames are used, then the structural stability is improved, but the weight and thickness of the backlight module increase
Solution Approach 1:
By merging the backplate and plastic frame into a single integrated structure, the total number of parts is reduced, which directly decreases the overall weight while maintaining structural stability through the integrated design of side plates and top plates.
Solution Approach 2:
The patent eliminates unnecessary auxiliary frames and separate plastic frame components, extracting only the essential structural elements needed for stability. This reduction in parts directly reduces weight while the integrated backplate design maintains sufficient structural support.
3Stability of the object's composition
If multiple parts and auxiliary frames are used, then the structural stability is improved, but the thickness of the backlight module increases
Solution Approach 1:
The integration of backplate and frame structures into a single thin profile design allows the side plates and top plates to form a compact assembly structure that reduces overall thickness while maintaining structural stability through the unified design.
Solution Approach 2:
The patent optimizes the three-dimensional configuration of the integrated backplate, arranging side plates and top plates in a spatial configuration that provides structural stability without increasing thickness. The design leverages spatial arrangement to achieve stability in a thin-profile form factor.
4Reliability
If a large number of parts are used, then the fixation reliability is improved, but the manufacturing cost increases due to additional moulds
Solution Approach 1:
By combining multiple parts into a single integrated backplate, the number of moulds required for manufacturing is reduced. The integrated structure can be produced using fewer moulding operations while maintaining fixation reliability through the integrated design features.
Solution Approach 2:
The integrated backplate performs multiple functions that previously required separate parts, reducing the total number of moulds needed for production. This multi-functional design lowers manufacturing costs while maintaining the necessary fixation capabilities through integrated features.
Data Source
AI summary
A backlight module and a backplate for use in the backlight module are disclosed. The backlight module comprises a light guide plate, a light source and a backplate; the backplate comprises a baseplate, side plates extending upwards from two opposite sides of the baseplate respectively, and top plates extending from the two side plates respectively and towards each other, and the side plates, the top plates and the baseplate together form recesses for receiving the light source, with two opposite edges of the light guide plate being disposed in the recesses; a fixing post is disposed at an end of the baseplate, and a fixing groove is formed in the light guide plate corresponding to the fixing post, with the fixing post being fitted in the fixing groove; and display panel positioning blocks are disposed at both ends of an upper surface of each of the top plates. Therefore, the backlight module of the present invention is compact in structure.