Display Panel Color Conversion Units Barrier Wall Structure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The technical challenge lies in the low color conversion and light extraction efficiency of existing display technologies using color conversion layers, which limits the display's ability to produce vibrant and pure colors with a wide color gamut.
Innovation Solution
The solution involves increasing the thickness of the color conversion units and optimizing their placement within the display panel's structure, including the use of a first barrier wall and raised portions to enhance the optical path and light interaction, thereby improving the conversion efficiency and display effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the thickness of color conversion units is increased, then color conversion efficiency is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The color conversion layer is divided into multiple color conversion units with different thicknesses. Each unit corresponds to a specific sub-pixel region and has an optimized thickness tailored to its light conversion requirements. This segmentation allows thicker regions for wavelengths needing more conversion while maintaining thinner regions elsewhere, thereby improving overall conversion efficiency without uniformly increasing device complexity.
Solution Approach 2:
Different regions of the color conversion layer are assigned different thicknesses based on local optical requirements. The barrier wall openings create regions where color conversion units can extend to different heights, providing locally optimized light interaction. This local quality approach ensures that each region has the precise thickness needed for optimal color conversion while avoiding unnecessary complexity in other areas.
2Productivity
If color conversion units extend beyond barrier wall openings, then light extraction efficiency is improved, but manufacturing precision requirements increase
Solution Approach 1:
The barrier wall structure is formed first, creating predefined openings that serve as templates for subsequent color conversion unit placement. This preliminary action establishes the spatial framework before the color conversion units are deposited, ensuring that even when units extend beyond the openings, they maintain proper alignment with the underlying light-emitting devices and barrier wall structure.
Solution Approach 2:
The color conversion units are designed to nest within and extend beyond the barrier wall openings in a controlled manner. The barrier wall openings are positioned within the color conversion units, creating a nested configuration where the units partially contain the openings while extending outward. This nesting approach allows the color conversion units to achieve optimal thickness and light extraction while maintaining manufacturing feasibility through hierarchical structuring.
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 approach significantly enhances the color conversion efficiency, resulting in a display panel that produces more vivid and pure colors with a wider color gamut, improving the overall display performance.
Implementation Method 1
A color conversion display technology is an innovative semiconductor nanocrystal technology that can accurately transmit light, efficiently improve a color gamut value and viewing angle of a display, make colors purer and brighter
Implementation Method 2
The quantum dots have a unique characteristic: whenever being excited by light or electricity, the quantum dots emit colored light. This characteristic makes the quantum dots capable to change colors of light emitted by a light source.
Data Source
AI summary
The present disclosure provides a display panel, including: a first barrier wall, enclosing a plurality of first barrier wall openings; light-emitting devices, arranged corresponding to the plurality of first barrier wall openings; and color conversion units, including at least one color conversion unit being at least partially located in a corresponding first barrier wall opening, and at least partially beyond the corresponding first barrier wall opening. The present disclosure also provides a display device. Through the present disclosure, display effect of the display panel can be improved.