Display Buffer Layer Structure for Heat-Protected Light Conversion
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Solution Overview
Problem
Current display devices face challenges in enhancing display quality and reliability due to limitations in the design of buffer layers between light-emitting units and light conversion units, which affect light conversion efficiency and protection against heat.
Innovation Solution
The implementation of a buffer layer with specific thickness, curvature, and material properties between light-emitting units and light conversion units, allowing for improved light scattering, protection, and optimized optical characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a buffer layer is disposed between light-emitting units and light conversion units, then light conversion efficiency is improved and protection against heat is enhanced, but device structure becomes more complex
Solution Approach 1:
A buffer layer is introduced as an intermediary component between the light-emitting unit and the light conversion unit. This buffer layer serves as a thermal barrier that protects the light conversion unit from heat generated by the light-emitting unit, while also managing light transmission to maintain conversion efficiency.
Solution Approach 2:
The device structure is segmented into distinct functional layers: a light-emitting unit, a buffer layer, and a light conversion unit. This segmentation allows each component to be optimized independently for its specific function while managing the interactions between them, particularly regarding heat and light transmission.
2Reliability
If the thickness of light conversion unit is greater than the thickness of light-emitting unit, then light conversion efficiency is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent specifies that the thickness of the light conversion unit is greater than the thickness of the light-emitting unit. This parameter change optimizes the light conversion efficiency by providing sufficient material for effective wavelength conversion while establishing clear design criteria that guide manufacturing processes.
3Reliability
If buffer layer with specific curvature is implemented, then optical characteristics are optimized, but manufacturing complexity increases
Solution Approach 1:
The buffer layer is designed with a curved bottom surface that corresponds to the curved top surface of the light-emitting unit. This curvature optimization enhances optical characteristics by improving light coupling and transmission, while the design accommodates standard curved LED chip geometries used in the industry.
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 light conversion efficiency, protects light conversion units from heat, and increases the overall reliability and quality of display devices.
Implementation Method 1
allowing for improved light scattering, protection, and optimized optical characteristics
Data Source
AI summary
An electronic device includes a substrate, a first light-emitting unit, a first light conversion unit, and a first buffer layer. The first light-emitting unit is disposed on the substrate. The first light conversion unit is disposed on the first light-emitting unit. The first buffer layer is disposed between the first light conversion unit and the first light-emitting unit. The thickness of the first light conversion unit is greater than the thickness of the first light-emitting unit.