Rotatable Backplane Assembly for Tool-Free Light Board Maintenance
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Solution Overview
Problem
Traditional backplane assemblies in display devices are cumbersome and risk damage when attempting to repair or replace the light board, as they require disassembly of adhesive and optical films, which can lead to damage to the display panel or optical film.
Innovation Solution
A backplane assembly with a rotatable connection between the bottom and upper frames, allowing partial separation to expose the light board or optical film without tools, featuring a locking assembly for secure fixation and a bearing assembly to reduce friction and facilitate easy operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the traditional one-piece backplane structure is used, then the structural simplicity is maintained, but the ease of repair deteriorates as tools and complex disassembly are required
Solution Approach 1:
The backplane is divided into an upper frame and a bottom backplane that can be relatively separated. The upper frame can be rotated relative to the bottom backplane to expose the light board for maintenance, while the display panel remains on the upper frame. This segmentation allows the light board to be accessed without tools and without damaging the display panel or optical film.
2Ease of operation
If the upper frame is fixed to the bottom backplane, then the stability is improved, but the ease of operation deteriorates as tool disassembly is required
Solution Approach 1:
The connection between the upper frame and bottom backplane is made dynamic through a rotatable connection. The upper frame can be rotated relative to the bottom backplane to expose the light board, and a locking assembly can be used to fix the upper frame to the bottom backplane when stable positioning is required. This dynamic connection eliminates the need for tool disassembly while maintaining stability when needed.
3Ease of repair
If the light board is accessed by removing adhesive, then the ease of repair is improved, but the reliability deteriorates due to risk of damage to display panel or optical film
Solution Approach 1:
The backplane is segmented into an upper frame and bottom backplane that can be separated. The upper frame containing the display panel and optical film can be rotated relative to the bottom backplane to expose the light board. This segmentation allows access to the light board without removing adhesive or disassembling the display panel, thereby maintaining reliability while improving ease of repair.
4Ease of operation
If the rotatable connection is added, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
A rotatable connection is added between the upper frame and bottom backplane to enable easy access to the light board. The upper frame can be rotated relative to the bottom backplane without requiring tool disassembly. While this adds some structural complexity, it dramatically improves ease of operation and maintenance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables safe and tool-free maintenance of the light board by avoiding damage to the optical film or display panel, reducing wear on components and simplifying the repair process.
Implementation Method 1
the first elastic member is arranged on the bottom backplane, and is configured for elastically supporting the bearing body away from one side of the upper frame, so as to drive the bearing body to move toward the upper frame
Implementation Method 2
the bearing assembly includes a bearing body and a first elastic member, and the bearing body is slidably arranged on the bottom backplane and sleeved on the outside the rotating shaft
Data Source
AI summary
Disclosed are a backplane assembly, a backlight module and a display. The backplane assembly includes a bottom backplane, an upper frame, a locking assembly, a bearing body and a first elastic member; the bottom backplane has a bottom wall, and the upper frame is arranged above the bottom backplane; the upper frame has opposite first and second sides; a connecting line from the first side to the second side is parallel to the bottom wall of the bottom backplane, and the first side is provided with a rotating shaft extending toward the bottom backplane.