Quantum Dot Display with AIGS Core for Color Matching
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Solution Overview
Problem
Current display technologies face challenges in achieving clear and accurate color reproduction, particularly in mobile electronic devices, due to limitations in light transmission and quantum dot layer efficiency.
Innovation Solution
A display apparatus and method utilizing quantum dot layers with an AIGS core, where light of specific wavelengths is irradiated to enhance color reproducibility, incorporating a color filter and capping layers to improve light absorption and emission efficiency, and using inkjet printing for precise layer placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If quantum dot layers are used to improve color reproduction, then color matching rate is improved, but light absorption efficiency is insufficient
Solution Approach 1:
The patent employs composite quantum dot structures with AIGS cores and shell layers (such as CdS, ZnS, or TiO2 shells). This composite structure enhances light absorption efficiency by improving the quantum dot's optical properties while maintaining color reproduction accuracy. The shell layers prevent surface defects and enhance charge transfer, thereby reducing energy loss.
Solution Approach 2:
The patent optimizes parameters such as quantum dot size, shell thickness, and core-shell structure to enhance light absorption. By controlling the particle size of quantum dots and adjusting shell layer thickness, the patent achieves improved light absorption efficiency while maintaining color matching performance.
2Measurement precision
If quantum dot layers are irradiated with light to enhance color reproduction, then color matching rate is improved, but energy consumption increases
Solution Approach 1:
The quantum dot layer is designed to utilize natural light from the environment (such as ambient light or light from the display panel itself) to enhance color reproduction. The AIGS core quantum dots with shell layers can absorb and re-emit light, providing self-enhancing color conversion without requiring additional external energy input, thereby reducing overall energy consumption.
3Measurement precision
If quantum dot layers are used to improve color reproduction, then color matching rate is improved, but display apparatus lifespan is reduced
Solution Approach 1:
The shell layers (CdS, ZnS, TiO2) surrounding the AIGS core quantum dots provide protective functions that enhance stability and resistance to degradation. This composite structure prevents surface defects and reduces chemical reactions with surrounding materials, thereby extending the operational lifespan of the display apparatus while maintaining color reproduction quality.
Solution Approach 2:
The shell layers create a protective inert environment around the AIGS core quantum dots, isolating them from moisture and oxygen in the surrounding environment. This protection prevents oxidation and degradation of the quantum dot material, thereby extending the lifespan of the display apparatus.
4Measurement precision
If light is irradiated to quantum dot layers for extended time to improve color reproduction, then color matching rate is improved, but manufacturing time increases
Solution Approach 1:
The patent optimizes irradiation parameters such as light intensity, wavelength, and duration to achieve effective color enhancement within a reasonable time frame. By adjusting these parameters, the patent achieves good color matching rates without requiring excessively long irradiation times, thereby reducing manufacturing time.
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 solution significantly increases color matching rates and energy efficiency, with improved light absorption and longer decay times, resulting in enhanced color reproduction and extended display apparatus lifespan.
Implementation Method 1
locating a first quantum dot layer in the first central opening, locating a second quantum dot layer in the second central opening, and irradiating light having a wavelength of 520 nm or more to the second quantum dot layer
Implementation Method 2
improved light absorption and longer decay times, resulting in enhanced color reproduction
Implementation Method 3
locating a filter between the lamp and the second quantum dot layer. According to some embodiments, the filter may be configured to transmit light having a wavelength of 520 nm or more
Implementation Method 4
the first quantum dot layer and the second quantum dot layer may be supplied into the first central opening and the second central opening by using an inkjet printing method, respectively
Data Source
AI summary
The present application relates to a display apparatus and a method of manufacturing a display apparatus. In a method of manufacturing a display apparatus, the method includes: locating a bank comprising a first central opening and a second central opening on an upper substrate; locating a first quantum dot layer in the first central opening; locating a second quantum dot layer in the second central opening; and irradiating light having a wavelength of 520 nm or more to the second quantum dot layer.