Planar Light Source Decorative Shielding for Illumination Design
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Solution Overview
Problem
Conventional ceiling illumination apparatuses using organic EL panels lack design appeal when used as wall-surface illumination due to the rectangular shape of the light emitting region, resulting in uninteresting and monotonous illumination.
Innovation Solution
A planar light source with a decorative member that includes a pattern forming section to shield and divide the light emitting region, enhancing design properties by creating a desired pattern and reinforcing mechanical strength, while allowing light to pass through specific areas for a desired appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the light emitting region is shielded by the pattern forming section to create desired patterns, then design property is improved, but light intensity is reduced
Solution Approach 1:
The light emitting region is divided into multiple sections by the light-emission shielding section, creating a patterned structure. This segmentation allows parts of the light to pass through while other parts are shielded, achieving both design property improvement and maintaining sufficient light intensity through the unshielded portions.
2Shape
If the frame shielding section covers the frame region to improve appearance, then design property is improved, but the structure becomes more complex
Solution Approach 1:
The frame shielding section is integrated with the light-emission shielding section to form a unified pattern forming section. This merging combines the aesthetic function of frame shielding with the light control function of the emission shielding, improving appearance while avoiding additional structural complexity.
3Shape
If the light-emission shielding section divides the light emitting region into multiple regions to create patterns, then design property is improved, but mechanical strength is reduced
Solution Approach 1:
The light emitting region is segmented by the light-emission shielding section into multiple regions that emit light. These segmented regions are connected through the decorative member structure, which maintains mechanical strength while allowing the segmentation needed for pattern creation.
Solution Approach 2:
The shielding sections are strategically positioned to create patterns in specific local areas while leaving other areas open for light emission. This local quality approach ensures that the structural integrity is maintained in critical areas while achieving design goals in specific regions.
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
The solution provides a higher design property and mechanical strength to the planar light source, allowing for a more aesthetically pleasing and durable illumination apparatus with varied light intensity patterns.
Implementation Method 1
an organic EL panel has been used as a light source of an illumination apparatus
Implementation Method 2
a light-emission shielding section extending from the frame shielding section so as to divide the light emitting region into a plurality of regions
Data Source
AI summary
The present invention provides a planar light source and an illumination apparatus which have higher design property than that of conventional ones. The planar light source includes: a planar light emitting panel which has a light emitting surface; and a decorative member which covers the light emitting surface of the planar light emitting panel. A light emitting region which emits light when the planar light source is turned on and a non-light-emitting frame region which surrounds the light emitting region are provided on the light emitting surface. The decorative member has a pattern forming section. The pattern forming section includes a frame shielding section which covers entirety of the frame region in the front view, and a light-emission shielding section which extends from the frame shielding section so as to divide the light emitting region into a plurality of regions.