Display Module Tiered Support Structure for Panel Edge Protection
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Solution Overview
Problem
Conventional liquid crystal display modules are susceptible to damage from external impacts due to the weaker single-layer glass extending portion of the lower substrate, which is not adequately supported by the top platform, leading to production yield issues.
Innovation Solution
A display module design featuring a support unit with a first and second tier portion along the side of the backlight module, where the second tier portion is lifted to support the bottom surface of the display panel, reducing the likelihood of breakage by enhancing the structural support at the boundary between substrates and the unsupported areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lower substrate extends beyond the upper substrate to accommodate driving circuits, then the display module can achieve proper electrical connection, but the extending portion becomes vulnerable to external impact damage
Solution Approach 1:
The support structure is divided into multiple tiers: a first tier portion that extends along the first side and a second tier portion that is lifted to support the bottom surface. This segmentation allows different portions of the support structure to serve different functions - the first tier provides base support while the second tier specifically protects the vulnerable extending portion of the lower substrate.
Solution Approach 2:
The support structure transitions from a single-plane configuration to a multi-level three-dimensional structure. The second tier portion is lifted relative to the first tier portion, creating vertical elevation that provides additional protection to the extending portion of the lower substrate from external impacts.
2Ease of manufacture
If the extending portion of the lower substrate is not supported by the top platform, then the assembly process is simplified, but the single-layer glass becomes susceptible to breakage
Solution Approach 1:
The support structure acts as an intermediary element between the backlight module and the display panel. The second tier portion specifically provides mediating support to the vulnerable extending portion of the lower substrate, distributing mechanical loads and preventing direct impact on the single-layer glass.
Solution Approach 2:
The support structure is designed in advance to provide protective cushioning to the vulnerable areas. The second tier portion is positioned to lift and protect the extending portion of the lower substrate before any external impact occurs, absorbing and distributing impact forces to prevent breakage.
3Ease of manufacture
If a double-sided tape is used to fix the relative position, then the assembly process is simple, but the protection against external impact is insufficient
Solution Approach 1:
The support structure is segmented into multiple functional portions: the first tier portion for base support and positioning, and the second tier portion for impact protection. This segmentation allows the structure to simultaneously provide simple assembly through modular design while offering comprehensive protection against external impacts.
Solution Approach 2:
The support structure combines different functional elements in a composite configuration - the first tier portion provides structural base support while the second tier portion provides impact absorption and protection. This composite approach enhances overall protection against external impacts while maintaining assembly simplicity.
Data Source
AI summary
A display module includes a display panel and a backlight module. The display panel has overlapped first and second substrates, wherein the first substrate extends beyond the second substrate at a first side. The backlight module is disposed on one side of the display module opposite to the display surface and includes a support unit disposed along the first side. The support unit has a first tier portion and a second tier portion, which is lifted toward the display panel with respect to the first tier portion and supports the display panel. A projection region of the display panel supported by the second tier portion on the first substrate covers or overlaps the edge of the second substrate at the first side and extends to an overlapping area of the first substrate and the second substrate.