Backlight Module Vertical Assembly Frame Design
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Solution Overview
Problem
Current backlight modules have inefficient mechanical designs, leading to increased assembly difficulty and time due to the need for inclined assembly of light bars and light guiding plates, which can result in damage from human error.
Innovation Solution
A backlight module design featuring a frame element with an L-like cross-section, a light-bar cover, and an adhesive element, allowing for vertical assembly of the light bar and light guiding plate, enhancing assembly efficiency and reducing assembly time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the light bar and light guiding plate are assembled in an inclined direction to the back frame, then the assembly can be completed, but the assembly difficulty and time increase and elements are easily damaged
Solution Approach 1:
The patent changes the assembly direction from inclined to vertical by modifying the frame element structure. The light bar and light guiding plate are assembled vertically along the light output direction rather than at an incline, reducing assembly difficulty and time while minimizing element damage.
Solution Approach 2:
The frame element is divided into distinct functional portions: a back frame for support and a frame element with an L-like cross-section that provides vertical assembly guidance. This segmentation allows the light bar and light guiding plate to be assembled vertically without requiring inclined positioning, improving assembly efficiency.
2Productivity
If the light bar and light guiding plate are assembled in an inclined direction, then the assembly can be completed, but the assembly difficulty increases due to human error
Solution Approach 1:
By changing the assembly orientation from inclined to vertical along the light output direction, the patent eliminates positioning errors caused by inclined assembly. The vertical assembly path provides natural alignment guidance, reducing human error and improving assembly reliability while maintaining high productivity.
Solution Approach 2:
The frame element with L-like cross-section acts as an intermediary structure that guides the vertical assembly of the light bar and light guiding plate. This intermediary structure ensures proper positioning and alignment, preventing assembly errors and enhancing reliability.
3Ease of manufacture
If the back frame is designed with a simple shape, then the manufacturing is easier, but the light bar cannot be properly protected and fixed
Solution Approach 1:
The frame structure is segmented into a back frame for basic support and a separate frame element with L-like cross-section for vertical assembly and protection. This segmentation allows the back frame to remain simple for easy manufacturing while the frame element provides the necessary fixation and protection for the light bar.
Solution Approach 2:
The frame element with L-like cross-section serves multiple functions: it provides vertical assembly guidance, protects the light bar, and fixes the light guiding plate in position. This multi-functional design maintains simple manufacturing while ensuring reliable light bar fixation.
Data Source
AI summary
A backlight module includes a light guiding plate, a frame element, a light bar and a light-bar cover. The light guiding plate has a light output surface. The frame element includes a bottom surface and a side wall, the bottom surface is parallel to the light output surface of the light guiding plate, and the side wall is extended from the bottom surface and towards a direction perpendicular to the light output surface. The light guiding plate is disposed in the frame element. The light bar is disposed in the frame element and between the side wall and the light guiding plate. The light-bar cover is disposed on the light bar and includes a covering portion substantially parallel to the bottom surface of the frame element. The light bar and the light guiding plate are disposed between the covering portion and the bottom surface of the frame element.