Film Light Emitting Panel Alignment Using End Positioning Portions
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Solution Overview
Problem
Conventional film-like light emitting element panels face positioning accuracy issues due to dimensional variations, leading to misalignment and increased adjustment time when positioning on a reference target object, especially when replacing rigid substrates.
Innovation Solution
A film-like light emitting element panel with positioning portions on both ends, where a virtual straight line connecting these portions lies within the width of the light emitting elements, ensuring accurate alignment on a support member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a film-like light emitting element panel is used instead of a rigid substrate, then flexibility and reduced weight are achieved, but positioning accuracy deteriorates due to dimensional variations in the panel outer shape
Solution Approach 1:
The patent introduces positioning portions (reference marks) as intermediary elements on the film-like panel that serve as stable reference points for positioning. These positioning portions are specifically designed with geometric features that enable accurate alignment with the positioning target object, mediating between the flexible panel and the rigid positioning requirements.
Solution Approach 2:
The positioning portions are formed on the light emitting element panel in advance during the manufacturing process, before the panel is installed. This preliminary positioning structure preparation ensures that when the panel is mounted, the light emitting elements can be accurately positioned without requiring post-installation adjustment.
2Ease of operation
If positioning is performed by aligning the contour line of the panel with the reference positioning position, then the panel can be easily positioned, but positioning accuracy deteriorates due to dimensional variations
Solution Approach 1:
The positioning portions act as intermediary reference elements that replace the unreliable contour line alignment. These positioned portions provide dedicated geometric features (such as holes or marks) that serve as precise mediators for alignment, eliminating the dimensional variation issues associated with using the panel's outer contour as the reference.
3Device complexity
If positioning portions are provided on the film-like panel at random positions, then the panel structure is simplified, but positioning accuracy cannot be ensured depending on the position of the positioning portions
Solution Approach 1:
The patent applies local quality by providing positioning portions at specific critical locations (both end portions in the array direction) rather than uniformly across the panel. This localized placement at strategically chosen positions ensures accurate positioning of the light emitting elements where it is most needed, without unnecessarily complicating the overall panel structure.
4Productivity
If conventional positioning methods are used, then the panel can be mounted quickly, but subsequent adjustment processes require additional time and effort
Solution Approach 1:
The positioning portions are prepared in advance during panel manufacturing, and their geometric design is optimized to enable direct, accurate positioning upon mounting. This preliminary preparation of positioning features eliminates the need for subsequent adjustment processes, allowing the panel to be mounted quickly and accurately in a single operation.
Data Source
AI summary
A film-like light emitting element panel includes a plurality of light emitting elements arrayed in a line. Positioning portions for positioning the plurality of light emitting elements at a reference positioning position on a positioning target object are provided on both end portions of the light emitting element panel in an array direction along the linear direction of the plurality of light emitting elements, and a virtual straight line connecting centers of the pair of positioning portions respectively provided on the both end portions lies within a width of the plurality of light emitting elements in a width direction orthogonal to the array direction.