Integrated Electrode Layer for PMOLED Optical Clarity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional passive matrix organic light-emitting diode (PMOLED) display panels with conductive electrode patterns cause optical disturbances like interference and diffraction, leading to unclear images captured by photographing components hidden under the display.
Innovation Solution
A display panel with integrated electrode layers that have both conductive and insulating functions, eliminating the need for additional conductive patterns, is manufactured by preparing an oxide semiconductor layer, forming a light shield, modifying the semiconductor layer to be conductive, and removing the shield, resulting in an electrode layer that reduces optical disturbances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conductive electrode patterns are used in conventional PMOLED display panels, then electrical conducting function is achieved, but optical disturbance (interference and diffraction) increases
Solution Approach 1:
The electrode layer is segmented into insulating sections and electrode sections within a single integrated layer, allowing different regions to perform different functions (insulation and conduction) simultaneously, thereby eliminating the need for separate conductive patterns that cause optical disturbance
Solution Approach 2:
The integrated electrode layer serves multiple functions: it provides electrical conduction through electrode sections, electrical insulation through insulating sections, and reduces optical disturbance by eliminating separate conductive patterns, thereby achieving multi-functionality in a single component
2Reliability
If additional conductive patterns are added to achieve electrical function, then electrical conducting capability is improved, but device complexity increases
Solution Approach 1:
The insulating sections and electrode sections are merged into a single integrated electrode layer, combining multiple functions (insulation and conduction) that were previously achieved through separate components, thereby reducing device complexity
Solution Approach 2:
The integrated electrode layer performs multiple functions simultaneously (electrical insulation, electrical conduction, and optical disturbance reduction), eliminating the need for additional separate conductive patterns and reducing overall device complexity
3Reliability
If conductive patterns are disposed as additional electrodes, then electrical function is achieved, but manufacturing process complexity increases
Solution Approach 1:
The manufacturing process merges the formation of insulating sections and electrode sections into a single integrated electrode layer, reducing the number of manufacturing steps compared to creating separate conductive patterns as additional electrodes
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 integrated electrode layer significantly reduces optical interference and diffraction, enhancing the resolution of images captured by photographing components without the need for additional conductive patterns.
Implementation Method 1
modifying the second section of the oxide semiconductor layer to be electrical conductive from the first surface of the oxide semiconductor layer
Data Source
AI summary
A display panel, a display device, and a method for manufacturing the display panel are provided. The display panel includes two electrode layers and a luminous functional layer stacked between the two electrode layers. Each electrode layer has a first surface and a second surface opposite to each other in a thickness direction thereof. The first surface of each electrode layer is attached to and in contact with the luminous functional layer. Each electrode layer includes at least one insulation section and at least one electrode section integrated as a single body. A material of the electrode section is a conductively modified form of a material of the insulation section. The electrode section is in contact with the luminous functional layer and is in a conductive state at least at the first surface. The electrode layer in the present disclosure has no conductive pattern and will not cause optical disturbance.