Segmented Back Frame for Flat Panel Displays
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Solution Overview
Problem
Conventional liquid crystal display devices have high material and mold costs due to the use of unitary back frames, which require large, complex molds and consume significant materials, making them costly and inefficient.
Innovation Solution
A flat panel display device with a back frame composed of multiple primary assembling pieces joined by multiple spaced joining spots, forming a simple structure that reduces material usage and manufacturing costs while ensuring strength and stress distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a unitary back frame is used, then the structure is simple and easy to manufacture, but the material cost and mold cost are high
Solution Approach 1:
The back frame is divided into multiple separate assembling pieces (first back frame assembling piece, second back frame assembling piece, etc.) that are joined together through joining spots. This segmentation reduces material consumption and mold costs while maintaining structural integrity, directly resolving the contradiction between ease of manufacture and material cost.
2Device complexity
If a unitary back frame is used, then the structure is simple, but the mold size is large and structure is complicated
Solution Approach 1:
The back frame is segmented into multiple smaller assembling pieces that can be manufactured with smaller, simpler molds. These pieces are then assembled together to form the complete back frame structure, reducing mold complexity and cost while maintaining the overall structural simplicity.
Solution Approach 2:
Multiple assembling pieces are nested or joined together to form the complete back frame structure. The pieces interconnect through joining spots to create the final structure, allowing complex overall geometry to be achieved through simple individual components.
3Quantity of substance
If multiple assembling pieces are joined by multiple spaced joining spots, then material cost is reduced and stress is distributed, but the structure becomes more complex
Solution Approach 1:
The back frame is divided into multiple assembling pieces joined at spaced joining spots, which distributes stress and reduces material usage. The segmentation is designed to minimize structural complexity while achieving the desired stress distribution and material savings.
Solution Approach 2:
The joining spots are strategically positioned at specific locations where stress concentration needs to be distributed. This local quality approach ensures that complexity is introduced only where necessary for stress distribution, rather than uniformly throughout the entire structure.
Data Source
AI summary
The present invention provides a flat panel display device, which includes a backlight system and a display panel, wherein: the backlight system includes a light source, a light homogenization mechanism, and a back frame; the back frame carries the light source and the light homogenization mechanism, the light homogenization mechanism guiding light from the light source to a light incidence surface of the display panel; the back frame includes at least two primary assembling pieces. The at least two primary assembling pieces are joined to form a main frame structure of the back frame in which the at least two primary assembling pieces are joined with multiple space joining spots. The present invention also provides a stereoscopic display device and a plasma display device. The flat panel display device, the stereoscopic display device, and the plasma display device of the present invention have a simple structure and can reduce the expenditure of the back frame mold, and can also save the material used for back frame so as to lower down the cost, and also ensure the strength of the joining site of the back frame and at the same time spread the stress, thereby further ensuring the overall strength of the back frame meets the desired requirements.