Prism Display Module with Segmented Frames for HMD Alignment
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Solution Overview
Problem
Current display modules for head-mounted displays face challenges in achieving precise alignment of multiple display panels within a compact configuration, which is essential for maintaining display quality and accommodating limited housing sizes.
Innovation Solution
A display module design featuring a prism that synthesizes light from multiple display panels, held by frames with step portions and clamping mechanisms, allowing for precise alignment and thermal coupling, and a positional adjustment mechanism for attachment to a support member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If multiple display panels are arranged in a compact configuration, then the device size is reduced, but the alignment precision between panels deteriorates
Solution Approach 1:
A housing structure is introduced as an intermediary component that holds multiple display panels in predetermined positions. The housing includes a first frame for the first display panel and a second frame for the second display panel, with the panels facing each other with a predetermined interval. This intermediary structure ensures precise alignment while maintaining compact device size.
Solution Approach 2:
The housing is segmented into multiple independent frames (first frame and second frame), each responsible for holding a specific display panel. This segmentation allows each frame to be independently designed and positioned to achieve optimal alignment, while the overall housing integrates them into a compact configuration.
2Manufacturing precision
If display panels are held in fixed positions for precise alignment, then alignment quality is improved, but the complexity of the housing structure increases
Solution Approach 1:
Multiple functional elements are merged into the housing structure. The housing combines the functions of holding display panels, maintaining alignment, providing thermal coupling paths, and enabling mechanical attachment to support members. By integrating these functions into a unified housing structure rather than separate components, the design achieves precise alignment without proportionally increasing overall complexity.
Solution Approach 2:
The housing structure serves multiple functions simultaneously: it holds display panels in aligned positions, provides thermal management pathways through thermal coupling, and includes attachment portions for mounting to support members. This multi-functionality reduces the need for additional separate components, maintaining structural efficiency while achieving precise alignment.
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 easy alignment and compact configuration of multiple display panels, improving display quality and reducing the size and weight of the display device while maintaining thermal efficiency and mechanical strength.
Implementation Method 1
a prism configured to synthesize first light emitted from the first display element and second light emitted from the second display element
Implementation Method 2
the first frame and the first display element may be thermally coupled, and the second frame and the second display element may be thermally coupled
Data Source
AI summary
A display module of the present disclosure includes a display module main body and a housing. The display module main body includes a first, a second display element, and a prism. The housing includes a first, and a second frame. The first frame holds the first display element in a state in which the prism is positioned between a first and a second plate portion, and in which a third plate portion is in contact with the first display element and faces a first surface, and the second frame holds the second display element in a state in which the prism is positioned between a fourth and a fifth plate portion, and in which a sixth plate portion is in contact with the second display element and faces a second surface.