AMOLED Pixel Structure for Dual-Side Display Mode Switching
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Solution Overview
Problem
Conventional active matrix organic electroluminescent display panels cannot switch between single-side display mode and double-side display mode, limiting their applications.
Innovation Solution
A pixel structure with a transparent substrate, driving switching devices, and light emitting devices in distinct regions, allowing for the integration of addressing and selecting switching devices to control the display mode, enabling switching between single-side and double-side display modes without additional photo masks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional active matrix organic electroluminescent display panel is designed for single-side display mode, then the structure is simple and manufacturing is easy, but the application versatility is limited and cannot switch to double-side display mode
Solution Approach 1:
The pixel structure is designed with dual light emitting devices (first and second light emitting devices) that can both emit light, enabling the display panel to function in both single-side display mode (using only one light emitting device) and double-side display mode (using both light emitting devices simultaneously). This multi-functional design allows the same panel structure to serve multiple display purposes without requiring separate panels for different modes.
Solution Approach 2:
The pixel region is divided into a first region and a second region, with each region containing its own light emitting device and driving switching device. This segmentation allows independent control of each light emitting device through separate driving switching devices, enabling flexible switching between single-side and double-side display modes while maintaining manageable structural complexity.
2Adaptability or versatility
If additional switching devices are added to enable display mode switching, then the adaptability improves, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The first and second light emitting devices share common electrodes (the first transparent cathode serves as the second transparent anode, and the second cathode serves as the first transparent cathode for the other device). This merging of electrode structures reduces the total number of separate components that need to be manufactured and assembled, thereby simplifying the manufacturing process while still enabling dual-mode operation through the addition of switching devices.
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 flexible display mode switching, expanding the applications of active matrix organic electroluminescent display panels by allowing them to operate in both single-side and double-side modes, enhancing their utility and versatility.
Implementation Method 1
a first organic electroluminescent layer disposed between the first transparent anode and the first transparent cathode
Data Source
AI summary
A pixel structure of active matrix organic electroluminescent display panel includes a first light emitting device, a first driving switching device electrically connected to the first light emitting device for driving the first light emitting device, a second light emitting device, a second driving switching device electrically connected to the second light emitting device for driving the second light emitting device, and at least one addressing switching device electrically connected to at least one of the first driving switching device and the second driving switching device.