Display Light Layout for Clear Reflected-Light Visualization
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Solution Overview
Problem
Current display devices with light-receiving and light-emitting elements face challenges in efficiently controlling and orienting light-emitting surfaces for effective visualization of objects, particularly in applications like observing biological structures, where accurate light emission and reception are crucial for clear imaging.
Innovation Solution
A display device design featuring a substrate with first and second surfaces, where first light-emitting elements are oriented parallel to the first surface and second light-emitting elements are oriented towards the first surface, with a drive element controlling the second light-emitting elements based on the output of light-receiving elements, utilizing a flexible holding member and specific materials for enhanced transmittance and reflectance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light-emitting elements are oriented in multiple directions, then light emission coverage is improved, but device complexity increases
Solution Approach 1:
The light-emitting elements are segmented into two distinct groups with different orientations: first light-emitting elements (30R, 30IR) oriented in a first direction parallel to the first surface, and second light-emitting elements (40) oriented in a second direction from the second surface toward the first surface. This segmentation allows each group to serve specific functional purposes while collectively achieving comprehensive light emission coverage.
Solution Approach 2:
Different regions of the device have different light-emitting characteristics tailored to local requirements. The first light-emitting elements provide light emission in a direction parallel to the first surface, while the second light-emitting elements provide light emission from the second surface toward the first surface. This local differentiation optimizes light emission for specific observation needs without requiring all elements to be complex multi-directional emitters.
2Measurement precision
If light-receiving elements are positioned to detect reflected light, then visualization accuracy is improved, but unnecessary light detection increases
Solution Approach 1:
The light-receiving elements (50) are extracted and positioned at the second surface side of the substrate, separate from the light-emitting elements. This spatial separation allows the light-receiving elements to specifically detect reflected light from the observation target without being contaminated by direct light from the light-emitting elements, thereby improving visualization accuracy while avoiding unnecessary light detection.
Solution Approach 2:
The substrate acts as an intermediary structure that spatially separates the light-emitting elements and light-receiving elements. The first light-emitting elements are located at a lateral side of the substrate, while the light-receiving elements are located at the second surface side, with the substrate providing physical separation and optical path management between them.
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 enables efficient light emission and reception, allowing for accurate visualization of objects by reducing unnecessary light detection and enhancing image clarity, particularly suitable for observing biological structures like blood vessels.
Implementation Method 1
a light-receiving element and a light-emitting element has been proposed
Implementation Method 2
a first light-emitting element located at a lateral side of the substrate; a plurality of second light-emitting elements located on the first surface of the substrate
Data Source
AI summary
A display device includes a substrate including a first surface, and a second surface positioned at a side opposite to the first surface; a first light-emitting element located at a lateral side of the substrate; a plurality of light-receiving elements located at a second surface side of the substrate; a plurality of second light-emitting elements located on the first surface of the substrate; and a first drive element controlling driving of the second light-emitting elements based on output of the light-receiving elements. A light-emitting surface of the first light-emitting element is oriented in a first direction. The first direction is parallel to a direction from the first surface toward the second surface. Light-emitting surfaces of the second light-emitting elements are oriented in a second direction. The second direction is from the second surface toward the first surface.