Aerial Display Apparatus Compact Mirror and Light Control
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Solution Overview
Problem
Existing aerial display apparatuses face challenges in miniaturization while maintaining display quality, leading to limitations in flexibility and compactness.
Innovation Solution
The aerial display apparatus employs a mirror device with a matrix of optical elements that reflect light emitted from a liquid crystal display, using a light control device to ensure only desired light angles are transmitted, forming a high-quality aerial image at a plane-symmetrical position, and includes a configuration where the display unit and mirror device are parallel, allowing for compact installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a dihedral corner reflector array is used to form aerial images, then the display quality and image formation accuracy are improved, but the device size and complexity increase
Solution Approach 1:
The invention divides the aerial display apparatus into distinct functional modules: a display unit (liquid crystal display), a light control device with light-shielding structures, and a mirror device with corner reflectors. This segmentation allows each component to be optimized independently and facilitates compact integration while maintaining overall system performance.
Solution Approach 2:
The light control device is integrated between the display unit and the mirror device, creating a nested arrangement where components are positioned within a compact spatial hierarchy. The light-shielding structures are incorporated within the light control device itself, further reducing overall device footprint while preserving the required optical functions.
2Adaptability or versatility
If the display unit and mirror device are arranged parallel to each other, then the installation flexibility and packaging efficiency are improved, but the optical path complexity increases
Solution Approach 1:
The light control device serves as an intermediary component positioned between the display unit and the mirror device. It performs multiple functions including light-shielding, angle-control, and optical path management, thereby simplifying the overall optical path while enabling the parallel arrangement of major components for improved installation flexibility.
3Manufacturing precision
If light control structures are added to control light angles, then the display quality and light utilization efficiency are improved, but the device complexity increases
Solution Approach 1:
The light control device incorporates light-shielding structures with specific geometric configurations (e.g., triangular or rectangular cross-sections) that are locally optimized for their optical function. These structures are positioned at critical locations in the optical path where they can effectively control light angles without requiring complex mechanisms throughout the entire device.
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 achieves miniaturization while ensuring the display quality of aerial images, improving installation flexibility and packaging efficiency, and enhancing light utilization efficiency by matching light angles in the light control device with the display unit.
Implementation Method 1
The aerial display apparatus reflects light emitted from a display surface of a display device and forms a real image in the air using, for example, a dihedral corner reflector array in which dihedral corner reflectors are arranged in an array
Data Source
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AI summary
An aerial display apparatus includes a display device (22) which includes a display surface on which an image is displayed, and which emits display light from the surface, a light control device (40) which includes a plurality of transparent regions (41) and a plurality of light-shielding regions (42) that are arranged in an alternating manner and are obliquely disposed with respect to a first direction that is orthogonal to the surface, and which allows the light that has been made incident on the region (41) to be transmitted therethrough, and shields the light that has been made incident on the region (42), and a mirror device (10) which is disposed in parallel to the surface, which reflects the light that has been transmitted through the device (40), and which forms an aerial image (30) at a position that is plane-symmetrical to the device (22).