Flexible OLED Panel Optical Path Separation for Crosstalk Prevention
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Solution Overview
Problem
In flexible AMOLED display devices, crosstalk between display light and control light occurs when light emitting display units and control light emitting units are integrated, leading to reduced display quality.
Innovation Solution
A flexible display panel design that includes a light emitting display unit and a controllable deformation unit with a photo-deformable layer, where the optical paths of the control light emitting device and display light emitting device do not coincide, allowing for separate formation and encapsulation to prevent crosstalk, using a structure with transparent flexible substrates, reflective cathodes, and anodes, and a photo-deformable layer capable of deformation under illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If light emitting display units and control light emitting units are integrated in flexible AMOLED display devices, then device functionality is improved, but crosstalk between display light and control light occurs leading to reduced display quality
Solution Approach 1:
The patent divides the integrated display device into separate light emitting display units and control light emitting units with distinct optical paths. By segmenting the optical pathways, the patent prevents crosstalk between display light and control light while maintaining the integrated functionality of the flexible AMOLED display device.
Solution Approach 2:
The patent introduces an encapsulation layer as an intermediary structure between the light emitting display units and control light emitting units. This encapsulation layer serves as a physical barrier that separates the optical paths, preventing harmful crosstalk while allowing both units to function within the same integrated device structure.
2Object-affected harmful factors
If optical paths of control light emitting device and display light emitting device are separated, then crosstalk is prevented improving display quality, but device structure complexity increases
Solution Approach 1:
The patent merges the light emitting display units and control light emitting units into a single integrated flexible AMOLED display device structure. By combining both units within one device while maintaining separate optical paths through the encapsulation layer, the patent achieves crosstalk prevention without proportionally increasing overall device complexity.
Solution Approach 2:
The encapsulation layer serves multiple functions: it acts as a physical barrier to prevent crosstalk, provides structural support for the integrated device, and enables the coexistence of separate optical paths. This multi-functionality reduces the need for additional specialized components, thereby limiting the increase in device 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
Prevents crosstalk between display light and control light, enhancing display quality by ensuring the optical paths do not overlap, thereby improving the overall performance of the flexible OLED display.
Implementation Method 1
a photo-deformable layer disposed in a light emitting direction of the control light emitting device, the photo-deformable layer being capable of deforming under illumination of the control light emitting device
Data Source
AI summary
The present disclosure provides a flexible OLED display panel, a fabricating method thereof and a display apparatus. The flexible display panel includes a light emitting display unit including a display light emitting device, and a controllable deformation unit including a control light emitting device and a photo-deformable layer disposed in a light emitting direction of the control light emitting device, the photo-deformable layer configured to deform under illumination of the control light emitting device. An optical path of the control light emitting device and an optical path of the display light emitting device do not coincide with each other. Since the optical path of the control light emitting device and the optical path of the display light emitting device do not coincide with each other, crosstalk between display light and control light is prevented, and the display quality is improved.