Backlight Module Optical Film Assembly Narrow Bezel Design
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Solution Overview
Problem
Existing backlight modules for liquid crystal displays face challenges in achieving narrow bezel designs and efficient assembly due to the need for positioning frames to secure optical film assemblies, which complicates the assembly process and limits bezel size.
Innovation Solution
A backlight module design that includes a backplate with an optical film assembly extending and fixed onto its outer walls, eliminating the need for a positioning frame, allowing direct fixation and simplifying assembly while maintaining a thin profile to support narrow bezel designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a positioning frame is used to secure the optical film assembly, then the optical film assembly is firmly positioned, but the device complexity increases and bezel size increases
Solution Approach 1:
The patent merges the positioning frame function into the backplate by integrating positioning protrusions directly onto the backplate structure. This eliminates the need for a separate positioning frame component while maintaining the positioning stability function, thereby reducing device complexity without compromising reliability
Solution Approach 2:
The patent extracts the positioning function from the positioning frame and relocates it to the backplate through positioning protrusions. This separation allows the optical film assembly to be directly positioned on the backplate without requiring an additional positioning frame layer, simplifying the overall assembly structure
2Reliability
If a positioning frame is used to secure the optical film assembly, then the optical film assembly is firmly positioned, but the bezel size increases
Solution Approach 1:
By merging the positioning function into the backplate structure through positioning protrusions, the patent eliminates the need for an additional positioning frame that would increase bezel size. This integration allows narrow bezel design while maintaining positioning stability
3Adaptability or versatility
If multiple components are assembled separately, then each component can be optimized independently, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The patent combines the positioning frame function with the backplate into a single integrated structure. This reduces the number of separate components from three (backplate, positioning frame, optical film assembly) to two (integrated backplate-positioning structure, optical film assembly), significantly simplifying the assembly process and improving productivity while maintaining component optimization flexibility
Data Source
AI summary
The present disclosure provides a backlight module and a display apparatus, the backlight module comprises a backplate, a light guide plate, and an optical film assembly, the backplate forms a frame for accommodating the light guide plate; the light guide plate is provided within the frame; the optical film assembly is provided on a light-exiting surface of the light guide plate, and the optical film assembly extends to outside of the backplate and is fixed onto an outer wall of the backplate. The backlight module and the display apparatus provided by the present disclosure facilitates not only realization of narrow bezel but also assembly.