Transparent Laser Phosphor Display with Segmented Pixel Regions
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Solution Overview
Problem
Conventional Laser Phosphor Displays are opaque, limiting their application as they obscure the background environment, preventing viewers from seeing through the display screen.
Innovation Solution
The display screen is designed with pixel regions that include both a fluorescent region excited by an excitation light to form images and a transparent region, allowing viewers to see through the screen while maintaining image visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a conventional phosphor panel is used in Laser Phosphor Display, then the display can form colorful pixels with good viewing angle, but the panel becomes opaque and prevents viewers from seeing the background environment
Solution Approach 1:
The pixel region is divided into two distinct functional zones: a fluorescent region containing phosphor materials for image formation and a transparent region allowing background visibility. This segmentation enables the display to simultaneously provide both imaging functionality and transparency, resolving the contradiction between image quality and background visibility.
Solution Approach 2:
Different regions of the pixel structure are assigned different optical properties: the fluorescent region has high light emission capability for forming images, while the transparent region has high light transmission capability for viewing the background. This local differentiation of material properties allows both functions to coexist without compromising either.
2Adaptability or versatility
If the phosphor panel is made transparent to allow background visibility, then the application scope is enlarged, but the image formation capability is compromised
Solution Approach 1:
By segmenting the pixel region into fluorescent and transparent portions, the display maintains image formation capability in the fluorescent region while providing transparency in the transparent region. This allows the display to be applied in scenarios requiring both functions, such as shop windows or vehicle windshields, thereby expanding application scope without sacrificing image quality.
Solution Approach 2:
The display structure is designed to perform multiple functions simultaneously: the fluorescent region forms images for information display, while the transparent region enables visibility of the background environment. This multi-functionality allows the same display structure to be universally applied in diverse scenarios including retail displays, vehicle interfaces, and architectural displays.
3Object-affected harmful factors
If the transparent region area is increased to improve visibility, then the viewability through the screen is enhanced, but the fluorescent region area is reduced which may affect image quality
Solution Approach 1:
The patent optimizes the spatial distribution of fluorescent and transparent regions within each pixel, concentrating the fluorescent materials in specific areas to maintain sufficient image brightness while allowing transparent regions to provide adequate background visibility. This local optimization ensures that both imaging and transparency requirements are met without requiring one region to dominate the entire pixel area.
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 design enables the display system to be used in applications where visibility through the screen is necessary, such as shop windows and vehicle windshields, while still forming images with the fluorescent regions.
Implementation Method 1
the first fluorescent material is arranged in the fluorescent region, for an excitation light exciting the fluorescent region to make the first fluorescent material emitting a visible light of a first color to form an image
Data Source
AI summary
A display screen includes a substrate and a fluorescent material. The substrate includes a plurality of pixel regions arranged in an array, wherein each pixel region includes a fluorescent region and a transparent region, and the area of the transparent region is larger than the area of the fluorescent region. The fluorescent material is arranged in the fluorescent region and excited by an excitation light to emit a visible light to form an image. The above-mentioned display screen allows a viewer to see the images formed by the fluorescent region and the environmental image at the other side of display screen. A display system including the above-mentioned display screen is also disclosed.