OLED Anode Pretreatment for Efficiency and Voltage
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Solution Overview
Problem
Organic Light Emitting Diode (OLED) displays have high driving voltage and low current efficiency, necessitating improvements in performance.
Innovation Solution
A manufacturing method for OLED display panels involves pretreating the anode with a solution containing 10-30% propylene glycol methyl ether and 70-90% water, forming an adhesive layer, and then removing it to enhance current efficiency and reduce driving voltage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional anode treatment is used, then the manufacturing process is simple, but the current efficiency is low and driving voltage is high
Solution Approach 1:
The patent applies parameter changes by modifying the chemical composition parameters of the treatment solution. Specifically, it uses a water-soluble organic protective agent with controlled concentration (10-30% by weight of propylene glycol methyl ether and 70-90% by weight of water) to treat the anode, which transforms the anode surface properties and improves current efficiency by 16.7% or more while reducing driving voltage.
2Ease of manufacture
If conventional anode treatment is used, then the manufacturing process is simple, but the driving voltage is high and energy consumption is high
Solution Approach 1:
The patent changes the physical-chemical parameters of the anode surface through treatment with a specific water-soluble organic protective agent solution. This treatment modifies the surface energy and wettability parameters, resulting in reduced driving voltage and lower energy consumption during display panel operation.
3Device complexity
If the anode surface is not protected, then the process is simpler, but debris from cutting process affects display effect and service life
Solution Approach 1:
The patent applies preliminary action by coating the anode with a water-soluble organic protective agent before the cutting process. This protective layer is applied in advance to prevent debris from affecting the anode surface during subsequent manufacturing steps. After cutting, the protective layer is removed, leaving a clean anode surface that maintains display quality and extends service life.
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 method increases current efficiency by 16.7% or more and reduces driving voltage, thereby lowering energy consumption and extending the display panel's service life while maintaining performance and cleanliness.
Implementation Method 1
drying the solution layer so as to form an adhesive layer
Data Source
AI summary
A display panel, a manufacturing method thereof, and a display device. The manufacturing method includes: providing a pretreatment solution containing a water-soluble organic protective agent, and forming, on an anode, a solution layer covering the anode; drying the solution layer to form an adhesive layer; removing the adhesive layer; and drying the anode; where the pretreatment solution contains 10-30% by weight of propylene glycol methyl ether and 70-90% by weight of water.