Micro LED Transparent Display Wall Portion Optimization
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Solution Overview
Problem
Current transparent display technologies, such as LCDs and OLEDs, face challenges in achieving high transparency and cost-effectiveness, with traditional micro light-emitting diode displays having limitations in transparency due to the size and arrangement of their light-emitting units and wall portions.
Innovation Solution
A micro light-emitting diode transparent display is designed with a transparent substrate, N pixels, and N sets of micro light-emitting diodes, where a wall portion surrounds each set of diodes to form an enclosed region with a periphery length equal to or less than 85% of the pixel's outer periphery, allowing light to pass through and increasing transparency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wall portion length is increased to enclose micro light-emitting diodes, then the light emission directionality is improved, but the transparency of the display is reduced
Solution Approach 1:
The patent applies parameter changes by precisely controlling the wall portion length to be between 0.05-0.15 times the pixel pitch, and the micro LED size to be 0.01-0.05 times the pixel pitch. These optimized parameters ensure that the wall portion is sufficient to enclose the micro LEDs for directional light emission, while remaining short enough to allow light transmission, thus resolving the contradiction between directionality and transparency.
2Illumination intensity
If the wall portion length is decreased, then the transparency is improved, but the ability to enclose and direct light from micro light-emitting diodes is reduced
Solution Approach 1:
The patent applies parameter changes by setting the wall portion length to a minimum of 0.05 times the pixel pitch. This optimized parameter ensures that the wall portion remains long enough to effectively enclose the micro LEDs and direct light emission, while being short enough to maintain high transparency, thus resolving the contradiction between transparency and light directionality.
3Ease of manufacture
If conventional light-emitting diode size and arrangement are used, then the manufacturing is simpler, but the transparency and light transmission are insufficient
Solution Approach 1:
The patent applies parameter changes by defining specific size ratios: micro LED size of 0.01-0.05 times pixel pitch and wall portion length of 0.05-0.15 times pixel pitch. These optimized parameters enable high transparency while maintaining manufacturability through standardized fabrication processes, resolving the contradiction between manufacturing simplicity and transparency performance.
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 transparency by reducing the length of the wall portion and optimizing the arrangement of micro light-emitting diodes within pixels, resulting in improved light transmission and reduced crosstalk between adjacent pixels compared to conventional displays.
Implementation Method 1
N sets of micro light-emitting diodes are on the transparent substrate and respectively located in the N pixels
Implementation Method 2
Each of the N sets of the micro light-emitting diodes has at least one micro light-emitting diode
Implementation Method 3
An area of said one of the N pixels outside the enclosed region allows light to directly pass through the micro light-emitting diode transparent display
Data Source
AI summary
A micro light-emitting diode transparent display including a transparent substrate is provided. N pixels are defined on the transparent substrate. N sets of micro light-emitting diodes are on the transparent substrate and respectively located in the N pixels. A wall portion is on the transparent substrate and surrounding one of the N sets of the micro light-emitting diodes to form an enclosed region on the transparent substrate. A length of a periphery of the enclosed region is equal to or smaller than 85% of a length of an outer periphery of one of the N pixels in which said one of the N sets of the micro light-emitting diodes is located. An area of said one of the N pixels outside the enclosed region allows light to directly pass through the micro light-emitting diode transparent display.