Light Guide Member Holding Structure for Compact Displays
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Solution Overview
Problem
Existing display devices face challenges in efficiently guiding and directing light between closely spaced light-emitting units without causing optical interference, while maintaining a compact and efficient design.
Innovation Solution
The use of a light guide member with a reflecting portion and an elastically deformable holding member, which includes a cut to allow for precise positioning and minimize light leakage between units, ensuring effective light guidance and reduced optical interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If light guide members are disposed close to one another in multiple display-light-emitting units, then the display device achieves a compact layout, but optical interference occurs between adjacent units
Solution Approach 1:
A light blocking member is introduced as an intermediary element between adjacent light guide members to prevent optical interference. This member blocks stray light from one unit from entering the light guide member of an adjacent unit, thereby resolving the optical interference problem while maintaining the compact layout.
Solution Approach 2:
The light blocking function is extracted as a separate component (light blocking member) rather than being integrated into the light guide member itself. This allows the light guide member to focus on light guidance while the separate blocking member handles light isolation, effectively resolving the contradiction between compactness and optical interference prevention.
2Manufacturing precision
If holding members are designed to precisely hold light guide members, then positioning accuracy is improved, but device complexity increases
Solution Approach 1:
The holding member integrates multiple functions: it holds the light guide member, positions it accurately, and incorporates the light blocking function. By merging these functions into a single component, the design achieves precise positioning without proportionally increasing device complexity.
Solution Approach 2:
The holding member is designed as a multi-functional component that simultaneously provides mechanical support, precise positioning, and optical isolation. This universal design approach reduces the need for separate components, thereby maintaining simplicity while achieving high positioning accuracy.
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
This configuration enhances the holding and positioning of light guide members, reduces optical interference between adjacent units, and allows for a more compact and efficient layout of light-emitting devices, improving the overall display performance.
Implementation Method 1
The light guide member causes the light incident upon the light incident portion to be reflected by the reflecting portion so as to guide the light to the light exit portion
Implementation Method 2
The holding member includes an elastically deformable holding piece disposed at a portion facing the light incident portion of the light guide member, and holds the light guide member by using the holding piece
Data Source
AI summary
A display device includes a display housing and plural display-light-emitting devices. At least one of the plural display-light-emitting devices includes a light guide member, a holding member, and a light source. The light guide member includes a light incident portion, a light exit portion, and a reflecting portion. The light guide member causes light incident upon the light incident portion to be reflected by the reflecting portion so as to guide the light to the light exit portion. The holding member has an opening so as to house the light guide member, includes an elastically deformable holding piece, and holds the light guide member by using the holding piece. The light source is provided at a portion facing the light incident portion. The holding member has a cut that allows the holding piece to be elastically deformed.