Micro-LED Display Panel with Asymmetric Orientation and Segmented Shielding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Micro-LED displays face challenges in achieving high light conversion efficiency and preventing color mixing due to the thickness of quantum dot materials, which leads to crosstalk between adjacent pixels, affecting display quality.
Innovation Solution
A display panel design featuring micro-LED groups with at least three micro-LEDs of different orientations and a shielding layer with apertures between them, allowing for increased spacing and uniform aperture widths to enhance light-emitting area and prevent color mixing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If quantum dot material thickness is increased to improve light conversion efficiency, then light conversion efficiency is improved, but color mixing between adjacent pixels occurs
Solution Approach 1:
The patent divides the quantum dot material into multiple separate layers, each layer corresponding to a specific color channel (red, green, blue). This segmentation prevents the light from one pixel from traveling through quantum dot material of other color layers, thereby eliminating color mixing while maintaining sufficient thickness in each layer for high light conversion efficiency.
Solution Approach 2:
The patent applies different quantum dot material layers at different locations corresponding to different color channels. Each location has quantum dot material optimized for its specific color, with the material present only where needed. This local optimization allows each pixel to have sufficient quantum dot thickness for high efficiency without causing color mixing at adjacent pixel locations.
2Object-affected harmful factors
If spacing between adjacent micro-LEDs is increased to prevent color mixing, then color mixing is prevented, but light-emitting area is reduced
Solution Approach 1:
By segmenting the quantum dot material into separate color-specific layers, the patent eliminates the need for large spacing between micro-LEDs. The segmented structure confines the light interaction to specific color layers, allowing micro-LEDs to be placed closer together while still preventing color mixing, thus maintaining high light-emitting area.
3Ease of manufacture
If micro-LEDs are arranged in traditional orientations, then manufacturing is simplified, but light-emitting area and display quality are limited
Solution Approach 1:
The patent employs asymmetric arrangements of micro-LEDs with different orientations (e.g., some micro-LEDs oriented horizontally, others vertically) within the same display region. This asymmetric orientation strategy increases the effective light-emitting area by utilizing space more efficiently, while the segmented quantum dot layers ensure that the increased density does not cause color mixing.
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 design increases the light-emitting area of each pixel while maintaining high pixel density and preventing color mixing, thereby improving display chromaticity and brightness without sacrificing pixel density.
Implementation Method 1
the commonly used micro-LED display achieves color display by shining light emitted from a micro-LED chip onto quantum dot materials to excite emission
Data Source
AI summary
The present disclosure provides a display panel and a display device. The display panel includes: a base substrate; a plurality of micro-LED groups located on the base substrate, wherein each of the plurality of micro-LED groups includes at least three micro-LEDs, and at least two micro-LEDs of each said micro-LED group have their longer sides arranged in different directions; and a shielding layer comprising a plurality of apertures located in shielding portions, wherein the shielding portions are located between adjacent micro-LEDs, and wherein the plurality of apertures each correlates one of the micro-LEDs.