Double-Side Transparent Display Substrate with Front and Back Light Units
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Solution Overview
Problem
Current transparent display products are limited to single-side display, which cannot meet the demands for applications like metro window advertisements that require information to be visible from both inside and outside, necessitating a double-side display solution.
Innovation Solution
A display substrate with a base substrate featuring a first light-emitting region, a second light-emitting region, and a transparent region, where the light-emitting units include bottom-emitting and top-emitting devices with integrated structures and color filters, allowing for non-overlapping projections to enable double-side transparent display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single-side display transparent product is used, then the transparent region can transmit light, but it cannot display information visible from both inside and outside the metro
Solution Approach 1:
The patent transitions from single-side display to double-side display by adding light-emitting units on both the front and back surfaces of the transparent substrate. This dimensional expansion allows information to be visible from both inside and outside the metro, resolving the contradiction between transparency and information visibility.
Solution Approach 2:
The display substrate is divided into multiple functional regions: a transparent region for light transmission, a first light-emitting region on the front surface for internal visibility, and a second light-emitting region on the back surface for external visibility. This segmentation allows each region to perform its specific function simultaneously.
2Adaptability or versatility
If light-emitting units are added to both sides of the transparent substrate, then double-side display is achieved, but the structural complexity increases
Solution Approach 1:
The transparent substrate serves multiple functions simultaneously: it acts as a light-transmitting medium, a mounting base for front light-emitting units, and a mounting base for back light-emitting units. This multi-functionality reduces the need for separate structural components and simplifies the overall device.
Solution Approach 2:
The patent integrates the light-emitting units directly onto the transparent substrate, merging the display function with the transparent medium. The front and back light-emitting units are combined with the substrate structure, eliminating the need for separate display devices and reducing overall complexity.
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 enables improved display effects and widens the application range of transparent products by allowing information to be displayed on both sides while maintaining transparency, enhancing the display experience and functionality.
Implementation Method 1
a bottom-emitting light-emitting unit located in the first light-emitting region
Implementation Method 2
a top-emitting light-emitting unit located in the second light-emitting region
Implementation Method 3
the transparent region is configured to transmit light
Data Source
AI summary
A display substrate, a display device and a fabrication method are disclosed. The display substrate includes: a base substrate, having a first light-emitting region, a second light-emitting region and a transparent region, where an orthographic projection of the transparent region on the base substrate does not overlap an orthographic projection of the first light-emitting region on the base substrate and an orthographic projection of the second light-emitting region on the base substrate; and a light-emitting member, located on a side of the base substrate and including a bottom-emitting light-emitting unit located in the first light-emitting region and a top-emitting light-emitting unit located in the second light-emitting region.