Transparent Display UV Shielding Layer for Panel Reliability
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Solution Overview
Problem
Existing transparent display devices are susceptible to deterioration due to ultraviolet light irradiation, which affects their structural reliability and display quality.
Innovation Solution
Incorporating an ultraviolet light shielding layer between the transparent substrate and the display panel to reflect or absorb ultraviolet light, ensuring it overlaps with the active region of the display panel, thereby reducing ultraviolet light exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the transparent display panel is made transparent to allow light transmission, then the transparency and visual clarity are improved, but the susceptibility to ultraviolet light deterioration increases
Solution Approach 1:
The patent divides the protective function into separate layers: the transparent display panel maintains light transmission while the dedicated optical layer (disposed on the second side of the substrate) provides ultraviolet light shielding. This segmentation allows each layer to optimize its specific function without compromising the other.
Solution Approach 2:
The optical layer acts as an intermediary between the transparent display panel and the ambient environment. It is positioned to intercept ultraviolet light before it reaches the substrate and electronic components, while allowing visible light to pass through the transparent display panel unchanged.
2Reliability
If the optical layer is positioned to overlap the active region for maximum ultraviolet protection, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The patent combines the optical layer with the substrate structure, disposing it on the second side of the substrate. This merging approach integrates the ultraviolet protection function into the existing substrate architecture rather than adding a separate, complex assembly.
Solution Approach 2:
The substrate serves multiple functions: it provides structural support for the transparent display panel and simultaneously serves as a mounting base for the optical layer, enabling the optical layer to be positioned effectively for ultraviolet protection without requiring additional structural elements.
3Manufacturing precision
If the filling layer is designed with a first portion that does not overlap the light-emitting element, then the manufacturing precision is improved, but the area coverage is reduced
Solution Approach 1:
The filling layer is designed with different configurations in different regions: the first portion does not overlap the light-emitting element and transistor to facilitate manufacturing and alignment, while the second portion extends to provide adequate coverage and protection in other areas. This local differentiation optimizes both manufacturing precision and functional coverage.
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 solution effectively reduces ultraviolet light-induced deterioration of the display panel and its components, enhancing structural reliability and display quality.
Implementation Method 1
The optical layer is disposed on the second side of the substrate and configuring to reflect or absorb an ultraviolet light waveband
Implementation Method 2
The optical layer is disposed on the second side of the substrate and configuring to reflect or absorb an ultraviolet light waveband
Data Source
AI summary
A transparent display device comprising a transparent display panel and an optical layer is provided. The transparent display panel comprises a substrate, a light-emitting element, a transistor and a filling layer. The substrate has a first side and a second side. The light-emitting element is disposed on the first side. The transistor is disposed on the first side and is electrically connected to the light-emitting element. The filling layer is disposed on the first side and disposed on the light-emitting element, wherein the filling layer comprises a first portion, the first portion does not overlap the light-emitting element and the transistor. The optical layer is disposed on the second side and configuring to reflect or absorb an ultraviolet light waveband. A first minimum distance between the first portion and the optical layer is less than a second minimum distance between the light-emitting element and the optical layer.