AMOLED Display Panel Light Absorption Layer for Power Reduction
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Solution Overview
Problem
Current AMOLED display panels face inefficiencies in luminous efficiency, power consumption, production cost, and thickness due to the need for circular polarizers and quarter-wave plates to counter environmental light effects.
Innovation Solution
An electroluminescent device structure incorporating a quantum dot (QD) light absorption layer that generates photocarriers when excited by light emitted from the electroluminescent layer, eliminating the need for circular polarizers and quarter-wave plates, and comprising a stack of transparent electrode layers, an electroluminescent layer, a channel layer, a dielectric layer, and a third electrode layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If circular polarizers and quarter-wave plates are used to counter environmental light effects, then display performance is improved, but luminous efficiency is reduced and power consumption increases
Solution Approach 1:
The patent removes the circular polarizer and quarter-wave plate components from the display structure. By extracting these light management components, the invention eliminates the associated energy losses while maintaining display performance through an alternative reflective electrode design that counters environmental light effects without requiring these additional optical elements.
Solution Approach 2:
The reflective electrode is designed to automatically counter environmental light effects through its structural properties and positioning. The electrode reflects ambient light in a manner that minimizes interference with the display output, enabling the system to self-correct for environmental light effects without requiring external polarizing components that would reduce luminous efficiency.
2Reliability
If circular polarizers and quarter-wave plates are used to counter environmental light effects, then display performance is improved, but power consumption increases
Solution Approach 1:
The patent removes the circular polarizer and quarter-wave plate components from the display structure. By extracting these light management components, the invention eliminates the associated energy losses while maintaining display performance through an alternative reflective electrode design that counters environmental light effects without requiring these additional optical elements.
Solution Approach 2:
The reflective electrode is designed to automatically counter environmental light effects through its structural properties and positioning. The electrode reflects ambient light in a manner that minimizes interference with the display output, enabling the system to self-correct for environmental light effects without requiring external polarizing components that would reduce luminous efficiency.
3Reliability
If circular polarizers and quarter-wave plates are used to counter environmental light effects, then display performance is improved, but production cost increases
Solution Approach 1:
The patent removes the circular polarizer and quarter-wave plate components from the display structure. By extracting these light management components, the invention eliminates the associated energy losses while maintaining display performance through an alternative reflective electrode design that counters environmental light effects without requiring these additional optical elements.
4Reliability
If circular polarizers and quarter-wave plates are used to counter environmental light effects, then display performance is improved, but panel thickness increases
Solution Approach 1:
The patent removes the circular polarizer and quarter-wave plate components from the display structure. By extracting these light management components, the invention eliminates the associated energy losses while maintaining display performance through an alternative reflective electrode design that counters environmental light effects without requiring these additional optical elements.
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
This configuration enhances luminous efficiency, reduces power consumption, and enables ultra-thinning and miniaturization of AMOLED display panels by self-luminous photocarrier generation and injection into the electroluminescent layer, while eliminating the need for additional light management components.
Implementation Method 1
the light absorption layer can be excited by a light emitted from the electroluminescent layer to generate photocarriers
Data Source
AI summary
This disclosure relates to a display panel, an electroluminescent device and a manufacturing method for the electroluminescent device. The electroluminescent device includes a first transparent electrode layer, an electroluminescent layer, a channel layer, a second transparent electrode layer, a dielectric layer, a light absorption layer and a third electrode layer stacked in turn, wherein the light absorption layer can be excited by a light emitted from the electroluminescent layer to generate photocarriers. The present disclosure may reduce power consumption of the panel and also reduce cost and enable products such as a panel to meet the needs for ultra-thinning and miniaturization.