Holographic Display Device with Foldable Trapezoidal Plates
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Solution Overview
Problem
Holographic display devices in the related art are inconvenient to carry due to their bulky structure, limiting their portability and practical applications beyond exhibitions.
Innovation Solution
A holographic display device comprising a first and second substrate with movably connected trapezoidal holographic plates that can pivot and slide to form a four-sided prismoid structure for display and fold into a compact state, allowing for easy unfolding and folding, enabling miniaturization and portability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If four pieces of holographic film are used to enclose a quadrangular pyramid structure with fixed support rods, then holographic stereoscopic images can be obtained, but the device becomes very inconvenient to carry
Solution Approach 1:
The device is divided into four separate trapezoidal holographic plates instead of using a complete quadrangular pyramid structure. Each plate can be independently folded and stored, allowing the device to be disassembled into smaller components that are easier to carry while maintaining the holographic display function when assembled
Solution Approach 2:
The support structure is changed from fixed support rods to movable connection mechanisms including sliding connections and rotating connections. This allows the device to dynamically transition between an expanded display state and a folded portable state, improving ease of carrying while maintaining structural stability during display
2Reliability
If the holographic display device is designed with a quadrangular pyramid structure, then excellent visual impact with strong depth perception is achieved, but the device size becomes large and bulky
Solution Approach 1:
The complete quadrangular pyramid is segmented into four separate trapezoidal holographic plates. When folded, these plates can be stacked compactly between the first and second substrates, significantly reducing the device volume while maintaining the ability to form the complete pyramid structure for holographic display when expanded
Solution Approach 2:
The four trapezoidal holographic plates are designed to be nested or stacked between the first and second substrates when in the folded state. This nesting arrangement allows the holographic plates to be compactly stored within the device housing, minimizing the overall device volume for portable applications
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 device achieves holographic display in an unfolded state while allowing for compact folding, enhancing portability and making it suitable for various applications such as mobile devices and pads.
Implementation Method 1
images on a display screen can be reflected through a transparent material surface
Implementation Method 2
an upper side edge of the trapezoidal holographic plate is connected to the first substrate and is capable of pivoting around the connection
Implementation Method 3
a lower side edge of the trapezoidal holographic plate is connected to the second substrate and can slide on the second substrate
Data Source
AI summary
The present disclosure provides a holographic display device including: a first substrate and a second substrate disposed opposite to each other, wherein a display screen disposed on the first substrate, and the display surface of the display screen faces the second substrate; and four trapezoidal holographic plates, wherein the upper side edge of each trapezoidal holographic plate is movably connected to the first substrate, the lower side edge of each trapezoidal holographic plate is movably connected to the second substrate; wherein the holographic display device has a first state and a second state, wherein in the first state, four trapezoidal holographic plates enclose a four-sided prismoid structure and are supported between the first substrate and the second substrate; in the second state, the first substrate and the second substrate are stacked, and four trapezoidal holographic plates are unfolded to be in the same plane and stacked between the first substrate and the second substrate. The holographic display device provided by the present disclosure can realize miniaturization and improve portability.