Transparent OLED Display With Switchable Light Valve
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Solution Overview
Problem
Existing OLED display devices cannot simultaneously achieve transparent and non-transparent display modes, limiting their usability.
Innovation Solution
Incorporating a light valve component with two electrically switchable states on the non-display surface of an OLED display panel, allowing for compatibility between ordinary non-transparent and transparent display modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a light valve component is added to enable transparent display mode, then the adaptability of the display device is improved, but the device complexity increases
Solution Approach 1:
The light valve component is integrated within the display device structure, with the third electrode formed on the first substrate and the fourth electrode on the third substrate, creating a nested configuration where the light valve is embedded within the existing display panel architecture. This nesting approach enables transparent display functionality while minimizing additional structural complexity.
Solution Approach 2:
The light valve component serves multiple functions: it acts as a switch between transparent and non-transparent display modes, and when in non-transparent mode, it functions as a reflective layer to improve display brightness. This multi-functionality reduces the need for separate components and simplifies the overall device structure.
2Adaptability or versatility
If a light valve component is added to enable transparent display mode, then the adaptability of the display device is improved, but the manufacturing complexity increases
Solution Approach 1:
The third electrode of the light valve component is formed on the first substrate during the initial manufacturing process of the transparent OLED display panel, before the light valve component is fully assembled. This preliminary action integrates the light valve manufacturing into the existing production line, reducing overall manufacturing complexity.
Solution Approach 2:
The light valve component is manufactured as a separate module with its own electrodes and display medium, which can then be integrated with the OLED display panel. This segmentation allows for specialized manufacturing of the light valve component using appropriate techniques while maintaining the simplicity of the overall production process.
3Adaptability or versatility
If the light valve component is disposed on the non-display surface, then the transparent display function is achieved, but the area of the display surface is reduced
Solution Approach 1:
The light valve component is positioned on the non-display surface (rear surface) of the transparent OLED display panel rather than on the front display surface. This dimensional relocation allows the light valve to perform its function of switching between transparent and non-transparent modes without occupying or reducing the visible display area, effectively utilizing the z-dimension to resolve the space conflict.
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
Enables seamless switching between transparent and non-transparent display modes, enhancing user experience by combining the lightweight and thin characteristics of OLED panels with the functionality of the light valve component.
Implementation Method 1
the light valve component at least has two states under electric fields: a transparent state and a non-transparent state
Implementation Method 2
the organic light emitting layer is excited to emit light through injection, transport and recombination of carriers (electrons and holes)
Implementation Method 3
The reflective layer 102 can improve the display brightness of the OLED
Data Source
AI summary
Disclosed are an organic light emitting diode display device, a manufacturing method for the same and a display system, for realizing compatibility of ordinary non-transparent display and transparent display in the organic light emitting diode display device, as well as the switching between ordinary non-transparent display and transparent display. The display device comprises: a transparent organic light emitting diode (OLED) display panel (20) and a light valve component (21); the light valve component (21) is disposed on a non-display surface of the transparent OLED display panel (20); and the light valve component (21) at least has two states under electric fields: a transparent state and a non-transparent state.