Quantum Dot Display Panel with Matrix Material for Efficiency
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Solution Overview
Problem
Conventional display technologies using quantum dots suffer from low light conversion efficiency, low brightness, and high power consumption due to limitations in the use of blue light backlights and quantum dot combinations.
Innovation Solution
A display panel design incorporating a light-emitting base substrate and a color conversion substrate with quantum dots dispersed in a matrix material, where the matrix material excites a second light under irradiation of the first light, enhancing the emission efficiency of quantum dots and improving luminous efficiency by over 25% compared to pure quantum dot thin films.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If blue light backlight and quantum dots are combined, then color gamut is improved, but light conversion efficiency of quantum dot deteriorates
Solution Approach 1:
The patent introduces a matrix material as an intermediary between the blue light backlight and the quantum dots. The matrix material absorbs blue light and re-emits it at wavelengths that more effectively excite the quantum dots, thereby improving light conversion efficiency while maintaining the color gamut benefits of the quantum dot combination.
Solution Approach 2:
The patent modifies the optical parameters of the system by introducing a matrix material with specific optical properties that can convert blue light wavelengths into a spectrum better suited for quantum dot excitation. This parameter change optimizes the energy transfer efficiency from the backlight to the quantum dots.
2Device complexity
If conventional quantum dot structure is used, then device complexity is reduced, but brightness deteriorates
Solution Approach 1:
The patent creates a composite material system consisting of quantum dots dispersed within a matrix material. This composite structure improves brightness by enhancing light conversion efficiency while maintaining relatively simple device architecture, as the quantum dots and matrix material are integrated at the material level rather than requiring separate structural components.
3Ease of manufacture
If quantum dots are used without matrix material, then manufacturing process is simplified, but light conversion efficiency deteriorates
Solution Approach 1:
The patent changes the optical parameters of the quantum dot system by embedding them in a matrix material that optimizes light absorption and emission characteristics. This parameter optimization improves light conversion efficiency while the matrix material can be applied using conventional coating techniques, maintaining ease of manufacture.
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 increases display brightness and reduces power consumption while eliminating the need for scattering particles, minimizing particle agglomeration, and preventing clogging during film preparation.
Implementation Method 1
the matrix material is configured to excite a second light under irradiation of the first light
Implementation Method 2
the quantum dots are configured to emit light under irradiation of the first light and the second light
Data Source
AI summary
Disclosed are a display panel and a display apparatus. The display panel includes: a light-emitting base substrate comprising a plurality of light-emitting elements and configured to emit a first light; a color conversion substrate comprising a plurality of color conversion patterns, the color conversion pattern comprising a matrix material and quantum dots dispersed in the matrix material, wherein the matrix material is configured to excite a second light under irradiation of the first light, and the quantum dots are configured to emit light under irradiation of the first light and the second light. By exciting the quantum dots with the light emitted by the light-emitting elements and the light emitted by the matrix material, the luminous efficiency of the quantum dots can be improved and the power consumption can be reduced.