Switchable Image Forming Substrate for Aerial and 2D Display Modes
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Solution Overview
Problem
Conventional optical systems and three-dimensional aerial image display devices are not switchable between displaying an aerial image and a two-dimensional image, leading to partial image coverage and unsuccessful observation due to the geometry of the mirror surfaces.
Innovation Solution
A display device with a screen and an image forming substrate that can be configured to incline and align with the screen, allowing light to enter and form images on both sides, and includes a control unit to adjust the angle and brightness for optimal viewing, enabling both aerial and two-dimensional image observation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the mirror surface is arranged to form an aerial image, then the aerial image can be displayed, but the two-dimensional image on the display portion becomes partially covered and cannot be successfully observed
Solution Approach 1:
The image forming substrate is made movable relative to the display portion, allowing it to switch between different positions: a first position where it forms an aerial image, and a second position where it aligns with the display portion to allow direct two-dimensional image observation. This dynamic repositioning resolves the contradiction by making the system adaptable to different viewing modes.
Solution Approach 2:
The image forming substrate serves multiple functions: it can form aerial images when positioned at the first location, and it can also serve as a transparent or non-interfering element when aligned with the display portion for two-dimensional viewing. This multi-functionality allows the same component to support both aerial and two-dimensional image observation without compromise.
2Adaptability or versatility
If the display portion is fixed in position, then the structure is simple, but the device cannot switch between aerial image display and two-dimensional image observation modes
Solution Approach 1:
The image forming substrate is configured to be movable relative to the display portion, enabling switching between different operational modes. This dynamic element adds the necessary versatility for mode switching while maintaining relatively simple implementation through straightforward mechanical positioning or optical alignment mechanisms.
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
Enables successful observation of both aerial and two-dimensional images by adjusting the angle and brightness, preventing image coverage and enhancing visibility.
Implementation Method 1
a plurality of mirror surface portions extending in a thickness direction of the image forming substrate and reflecting, toward a second main surface side, light that has entered the image forming substrate from the first main surface side
Data Source
AI summary
A display device includes: a display portion having a screen that can display an image; and an image forming substrate formed into a plate, wherein the image forming substrate are configured to be switchable between a first state where the screen is arranged to be inclined with respect to the first main surface such that light from the screen enters the image forming substrate from the first main surface side and forms the image on the second main surface side and a second state where the display portion and the image forming substrate are aligned in the thickness direction and are arranged along each other.