Planar Bezel Backlight with Detachable Light Source Module
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Solution Overview
Problem
Conventional backlight modules for LCDs are limited by the V-shaped light guide member, which restricts the development of thinner designs, and lack a method for easily removing and replacing the light source, increasing maintenance time and manufacturing costs.
Innovation Solution
A planar bezel with lengthwise openings and a light source module comprising a bar and fixing member, allowing for easy removal and secure fastening of the light source module, reducing module thickness and facilitating maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a V-shaped light guide member is used in the backlight module, then the light source can be accommodated, but the thickness of the backlight module increases
Solution Approach 1:
The invention divides the backlight module into separate components: a planar bezel and a detachable light source module. The light source module can be independently removed and replaced without affecting the main backlight structure, enabling easier maintenance and thinner overall design.
Solution Approach 2:
The invention transitions from a V-shaped three-dimensional light guide structure to a planar bezel structure. This dimensional simplification reduces the thickness requirement while maintaining the functionality of light distribution across the display panel.
2Ease of repair
If the light source is integrated into the backlight module, then the structure is compact, but maintenance and replacement become difficult
Solution Approach 1:
The light source module is segmented as a detachable component with independent mounting and removal mechanisms. The planar bezel includes mounting holes that allow the light source module to be quickly attached or detached, significantly reducing maintenance time and improving repair ease.
3Ease of manufacture
If conventional fastening methods are used for the light source, then the structure is simple, but manufacturing costs increase
Solution Approach 1:
The fastening system is segmented into simple mounting holes in the planar bezel and corresponding attachment points on the light source module. This modular approach uses basic, cost-effective fastening elements while maintaining secure assembly, reducing overall manufacturing costs.
Data Source
AI summary
A display device includes a cover. A back light apparatus, a set of optical films, and a liquid crystal display module are disposed behind the cover. The back light apparatus includes a planar bezel and a light source module. The planar bezel has a lengthwise opening. The light source module has a bar, a light source disposed on the bar, and a fixing member. The bar is partially or totally disposed in the lengthwise opening of the planar bezel and both the planar bezel and the bar are combined by the fixing member. The light source is disposed on the bar and provides the light beam to the liquid crystal display module.