Transparent Display Panel with Dual Micro LED Emission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current transparent display panels with multiple images are thick, heavy, and have limited transparency due to the combination of two separate display panels, reducing their utility.
Innovation Solution
A transparent display panel design incorporating a light transmissive substrate with top-emitting and bottom-emitting micro light emitting diodes, along with a light shielding layer, which allows for dual-sided image display while reducing thickness and weight by optimizing the placement and shielding of light emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two separate display panels are combined to provide double-sided display function, then multiple images can be displayed, but the thickness and weight of the display module become considerably huge
Solution Approach 1:
The patent combines top-emitting and bottom-emitting micro light emitting diodes on a single light transmissive substrate to achieve double-sided display functionality. This merging approach eliminates the need for two separate display panels, thereby reducing the overall thickness and weight while maintaining the multi-image display capability.
Solution Approach 2:
The patent utilizes the z-dimension (thickness direction) by positioning top-emitting and bottom-emitting micro light emitting diodes at different depths within the substrate structure. This dimensional arrangement allows both emission directions to coexist in a single thin panel, resolving the contradiction between double-sided display and thin profile.
2Adaptability or versatility
If two separate display panels are combined to provide double-sided display function, then multiple images can be displayed, but the weight of the display module becomes considerably huge
Solution Approach 1:
The patent merges the functionality of two separate display panels into a single integrated structure with both top-emitting and bottom-emitting micro light emitting diodes on one light transmissive substrate. This consolidation dramatically reduces the weight by eliminating redundant substrates, electrodes, and encapsulation materials while preserving multiple images display capability.
Solution Approach 2:
The patent employs a composite structure combining light transmissive substrate with embedded micro light emitting diodes and light shielding layers. This composite design achieves weight reduction by using thin-film technologies and optimized material selection that maintains structural integrity and optical performance with minimal mass.
3Adaptability or versatility
If two separate display panels are combined to provide double-sided display function, then multiple images can be displayed, but the transparency may be limited
Solution Approach 1:
The patent combines both emission directions within a single thin light transmissive substrate, minimizing the total material quantity in the optical path. This approach preserves transparency better than stacking two separate panels, as the light transmissive substrate can be optimized for high transparency while accommodating both top-emitting and bottom-emitting diodes in a thin profile.
Solution Approach 2:
The patent applies light shielding components selectively at specific locations where needed to prevent light leakage, rather than using opaque materials across the entire substrate. This localized approach maintains high transparency in display areas while providing necessary light management, thus preserving the quantity of light transmission.
4Length of moving object
If top-emitting and bottom-emitting micro light emitting diodes are disposed on the same surface, then thickness is reduced, but light interference between the two directions may occur
Solution Approach 1:
The patent extracts and removes harmful light emissions by positioning light shielding components between the micro light emitting diodes and the light transmissive substrate. This extraction approach blocks light from the top-emitting diodes from interfering with the bottom-emitting diodes and vice versa, eliminating cross-interference while maintaining the thin integrated structure.
Solution Approach 2:
The patent introduces light shielding components as intermediary elements between the top-emitting and bottom-emitting micro light emitting diodes. These intermediaries selectively block light in specific directions, preventing harmful light interference between the two emission directions while allowing each direction to function independently in its intended path.
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 enables a thinner, more transparent display panel that provides high-quality dual-sided images with improved light management, reducing interference and enhancing display quality and transparency.
Implementation Method 1
a light transmissive substrate... a user can see an object behind it from a display surface
Implementation Method 2
the light-shielding component is disposed on the upper surface to shield the light emitted by the bottom-emitting micro light emitting diodes toward the upper surface
Data Source
AI summary
A transparent display panel with a light-transmitting substrate, a plurality of top-emitting micro light emitting diodes, a plurality of bottom-emitting micro light emitting diodes, and a light shielding layer. The light transmissive substrate has a surface. These top-emitting micro light emitting diodes and these bottom-emitting micro light emitting diodes are disposed on the surface of the light transmissive substrate. The bottom-emitting micro light emitting diodes has an epitaxial structure and a light shielding member, the epitaxial structure has a pair of upper and lower surfaces on the opposite sides, the lower surface faces toward the light transmissive substrate, and the light shielding member is disposed on the upper surface to shield the light emitted by the bottom-emitting micro light emitting diodes towards the upper surface.