Collimated Light Beam Display Device for AR/VR
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Solution Overview
Problem
Current display devices for augmented or virtual reality struggle to provide an efficient and high-quality visual experience with a large field of view and low power consumption, as they often require complex optical systems and high energy usage to maintain image clarity and visibility at varying observation directions.
Innovation Solution
A display device comprising an array of light emitting elements and optical elements that form collimated light beams, allowing the user to focus images at infinity and adapt to different observation directions with minimal aberration, using holographic optical elements and switchable light emitting elements to optimize light usage and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complex optical systems are used to maintain image clarity and visibility at varying observation directions, then image quality is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent divides the optical system into multiple discrete optical elements, each associated with specific light emitting elements. Each optical element processes light from its associated light emitting elements to form collimated light beams in specific directions. This segmentation allows the system to maintain image quality across varying observation directions without requiring a single complex optical system, thereby reducing overall device complexity while preserving measurement precision.
2Measurement precision
If complex optical systems are used to maintain image clarity at varying observation directions, then image quality is improved, but power consumption increases
Solution Approach 1:
The patent segments the optical system into multiple optical elements, each handling specific light emitting elements and specific observation directions. This allows the system to activate only the necessary optical elements and light emitting elements for the current observation direction, rather than continuously powering the entire system. This segmentation enables energy-efficient operation while maintaining image quality, directly addressing the contradiction between image quality and power consumption.
Solution Approach 2:
The patent implements switchable light emitting elements that can be activated or deactivated based on the required observation direction. This periodic activation pattern allows the system to consume energy only when and where needed, rather than continuously powering all elements. This approach maintains image quality across varying directions while significantly reducing overall power consumption.
3Adaptability or versatility
If the display device creates virtual images at specific planes, then adaptability to different viewing conditions is improved, but device complexity increases
Solution Approach 1:
The patent divides the optical system into multiple optical elements, each configured to create virtual images at specific planes for different observation directions. Each optical element is associated with specific light emitting elements and processes their light to form collimated beams appropriate for its designated viewing zone. This segmentation enables the system to adapt to different viewing conditions without requiring a single complex adjustable optical system, thereby improving adaptability while managing device complexity.
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 display device with improved design, allowing users to see images at almost infinite distance, maintaining high image quality and energy efficiency across different observation directions, with a large field of view and reduced power requirements.
Implementation Method 1
Each optical element is associated with at least one light emitting element and configured to form from the received light at least one collimated light beam
Implementation Method 2
Each optical element is associated with at least one light emitting element and configured to form from the received light at least one collimated light beam
Implementation Method 3
The plurality of optical elements may comprise a first holographic optical element and a second holographic optical element... the first holographic optical element may be configured to form from the light emitted by the at least one associated light emitting element the first collimated light beam... the second holographic optical element may be configured to form from the light emitted by the at least one associated light emitting element the second collimated light beam
Data Source
AI summary
A display device includes an array of light emitting elements and a plurality of optical elements for receiving light from the array of light emitting elements where each optical element is configured to provide a collimated light beam.