Display Backplane Light-Transmitting Structure for Large Transparent Panels
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Solution Overview
Problem
Current display technologies, such as LCD and OLED, face challenges in implementing large-size displays due to limitations in substrate size, preparation devices, and processes, whereas Micro LED/Mini LED displays can achieve large sizes through splicing but require advanced backplane designs for efficient light transmission and image display.
Innovation Solution
A display backplane is designed with a plurality of display units, each including a pixel area for image display and a light transmitting area for transmitting light. The light transmitting area features a substrate with a light transmitting structure layer that includes inorganic and organic material layers and is provided with light transmitting holes, enhancing light transmission while maintaining image display capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If LCD or OLED technology is used for display, then image display capability is achieved, but substrate size is limited and large-size display cannot be implemented
Solution Approach 1:
The display backplane is divided into multiple display units, each containing pixel areas and light transmitting areas. This segmentation allows the overall substrate to achieve large size while maintaining the functionality of individual display elements, resolving the contradiction between substrate size and display capability.
2Area of stationary object
If Micro LED/Mini LED splicing is used to achieve large-size display, then display area is increased, but advanced backplane design is required for efficient light transmission
Solution Approach 1:
The backplane is designed with different structural characteristics in different areas: pixel areas contain display elements while light transmitting areas have optimized structures with light transmitting holes and transparent conductive layers. This local differentiation enables efficient light transmission in specific regions without compromising overall display functionality, reducing backplane design complexity.
Solution Approach 2:
The light transmitting area employs composite material structures including transparent conductive oxide layers, organic light emitting layers, and inorganic encapsulation layers. These composite materials provide both electrical functionality and optical transparency, simplifying the backplane design while achieving large-size display capabilities.
3Illumination intensity
If light transmitting area is added to enable transparent display, then light transmittance is improved, but device structure complexity increases
Solution Approach 1:
The light transmitting area structure serves multiple functions simultaneously: the transparent conductive oxide layer provides both electrical conduction and optical transparency, the organic light emitting layer contributes to light emission and structural integrity, and the encapsulation layers provide both protection and maintain optical properties. This multi-functionality reduces overall structure complexity while achieving high light transmittance.
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 proposed display backplane design effectively increases the transmittance of the light transmitting area, improving the overall transmittance of the display backplane to meet the requirements for common indoor scenes, while also enabling large-size display implementations.
Implementation Method 1
the light transmitting area including a substrate and a light transmitting structure layer arranged on the substrate, the light transmitting structure layer being provided with light transmitting holes
Implementation Method 2
the light transmitting area further includes an antireflection layer arranged on a side of the protective layer away from the substrate
Data Source
AI summary
The present disclosure provides a display backplane and a preparation method therefor, and a display apparatus. The display backplane includes a plurality of display units, at least one display unit includes a pixel area and a light transmitting area, the pixel area is configured to perform image display and the light transmitting area is configured to transmit light; and in a plane perpendicular to the display backplane, the light transmitting area includes a substrate and a light transmitting structure layer arranged on the substrate, and the light transmitting structure layer is provided with light transmitting holes.