Micro LED Transparent Display Grating Light Control
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Solution Overview
Problem
Existing dual-side displays are thick and lack transparency due to the use of two separate display screens on opposite sides.
Innovation Solution
A micro LED transparent display with a substrate, pixels, and a grating layer, where the first and second display surfaces are on opposite sides of the substrate, and lights from micro LEDs are controlled by the grating layer to penetrate and reflect through both surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two separate display screens are disposed on opposite sides of a dual-side display, then dual-side display functionality is achieved, but the thickness increases and transparency deteriorates
Solution Approach 1:
The patent merges the light source function and display function into a single micro LED transparent display structure. The micro LEDs are directly mounted on a transparent substrate, eliminating the need for separate display screens on each side. This integration allows light to pass through the substrate while maintaining display functionality, thereby reducing thickness and improving transparency compared to using two separate display screens.
Solution Approach 2:
The transparent substrate serves multiple functions simultaneously: it acts as the mounting base for micro LEDs, provides structural support, and enables light transmission for transparency. This multi-functionality eliminates the need for additional separate display screen structures, thereby reducing overall thickness while maintaining dual-side display capability.
2Adaptability or versatility
If two separate display screens are disposed on opposite sides of a dual-side display, then dual-side display functionality is achieved, but transparency deteriorates
Solution Approach 1:
The patent combines the light source and display functions into a single transparent structure where micro LEDs are mounted on a transparent substrate. This eliminates the need for opaque display screen layers that would block light transmission, thereby maintaining high transparency while achieving dual-side display functionality.
Solution Approach 2:
The patent uses a transparent substrate that acts as a thin film structure, allowing light to pass through while providing mechanical support for the micro LEDs. This thin film approach minimizes material quantity and maximizes transparency compared to traditional thick display screen structures.
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 allows for reduced thickness and improved transparency of the micro LED transparent display, enabling dual-side or single-side display functionality with adjustable luminance.
Implementation Method 1
The grating layer is disposed on the substrate, and the micro LEDs are located between the grating layer and the substrate. Lights generated from the micro LEDs of the pixels can be controlled by the grating layer
Implementation Method 2
The micro lens layer is located at one side of the pixels. Lights generated from the micro LEDs of a first group of the pixels form a first image on a first imaging plane after propagating via the micro lens layer
Data Source
AI summary
A micro LED transparent display has a first display surface and a second display surface, which are opposite to each other. The micro LED transparent display includes a substrate, pixels and at least one grating layer. The first display surface and the second display surface are located on two opposite sides of the substrate, respectively. The pixels are arranged in arrays on the substrate, each of the pixels includes micro LEDs, and the micro LEDs are electrically connected to the substrate. The grating layer is disposed on the substrate, and the micro LEDs are located between the grating layer and the substrate. Lights generated from the micro LEDs of the pixels can be controlled by the grating layer, and the lights partially penetrate through the first display surface and are partially reflected and penetrate through the second display surface.