Display Device Back Bezel Assembly Structure
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Solution Overview
Problem
The high production cost of traditional back bezels for liquid crystal display devices due to the use of metallic sheets, which requires significant material and time for fabrication.
Innovation Solution
An assembly structure comprising two frames, where the first frame has separated plates with joint parts and the second frame has a supporting part and joint parts, allowing direct fixation of the plates without the need for additional combining steps, using materials like metal and plastic, and an assembly method that includes a fixture with a groove to position and assemble the frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the back bezel is made of metallic sheets and covers the bottom of the backlight module wholly, then the structural strength and coverage are improved, but the material consumption and production cost increase
Solution Approach 1:
The back bezel is divided into a first frame with two separated plates (first plate and second plate) instead of a single solid structure. The plates are positioned at opposite sides of the backlight module, providing structural support while reducing material consumption. The separation allows light to pass through the gaps between plates, maintaining functionality while reducing metal usage.
Solution Approach 2:
The invention extracts only the essential supporting function from the traditional solid back bezel. Instead of covering the entire bottom of the backlight module, the back bezel is reduced to two strategic plates that provide necessary support while allowing light transmission. This extraction eliminates unnecessary material while preserving the core structural function.
2Stability of the object's composition
If the back bezel is formed by stamping and combining multiple metallic sheets, then the structural integrity is improved, but the production time and manufacturing complexity increase
Solution Approach 1:
The back bezel is segmented into two independent plates positioned at opposite sides, eliminating the need to stamp and combine multiple sheets. Each plate is a simple, single-piece component that can be manufactured independently and then assembled, significantly reducing manufacturing complexity and production time while maintaining structural integrity.
Solution Approach 2:
The invention merges the functions of multiple metallic sheets into just two plates. Instead of combining several sheets to achieve structural integrity, the two plates work together with the side walls to provide the necessary support. This merging simplifies the manufacturing process by reducing the number of components that need to be produced and assembled.
3Area of stationary object
If multiple metallic sheets are combined to form the back bezel, then the structural coverage is improved, but the assembly complexity and production cost increase
Solution Approach 1:
The back bezel is segmented into two plates with side walls that extend vertically. This segmentation provides adequate structural coverage for the backlight module while using fewer components. The plates are positioned at opposite sides with their side walls facing each other, creating a stable structure that covers the necessary areas without requiring multiple sheets to be combined.
Solution Approach 2:
The invention combines the coverage function of multiple sheets into just two plates. The first and second plates, along with their side walls, work together to provide comprehensive structural coverage for the backlight module. This merging reduces assembly complexity by eliminating the need to combine multiple separate sheets while maintaining adequate coverage area.
Data Source
AI summary
A display device includes a first frame, a second frame, a backlight module and a display panel. The first frame has two plates separated with each other. Each plate includes a first bottom and a first side wall connected with the first bottom, wherein a first joint part is disposed at the first side wall. The second frame has a second side wall and a supporting part extended from the second side wall toward an inside of the second frame. Second joint parts corresponding to the first joint parts are disposed at the second side wall. The first frame and the second frame are assembled by combinations of the first joint parts and the second joint parts. The backlight module is disposed between the first bottoms and the supporting part. The display panel is disposed on the supporting part.