Wearable Display Light Path Conversion for Compact Virtual Image
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional display devices in wearable electronic apparatuses, such as smart watches and head-mounted displays, have limited display area due to their small size, restricting the amount of information that can be displayed and providing an uncomfortable wearing experience due to their volume and weight.
Innovation Solution
A display device comprising a display component, a transmission optical component, and an adjustment optical component that perform light path conversion to enlarge the image size, allowing the image to be perceived at a particular position, thereby reducing the volume and weight of the device and optimizing component layout for comfortable wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a conventional display is used in wearable electronic apparatuses, then the device structure is simple, but the display area is limited and the wearing comfort is poor
Solution Approach 1:
The patent applies optical path conversion to transform the display from the physical dimension of the display component to the visual dimension of the virtual image. By using a light guide plate and optical elements, the image is projected to form a virtual image at a different spatial position, effectively increasing the perceived display area without proportionally increasing the physical device size. This dimensional transformation resolves the contradiction between display area and device complexity.
2Area of stationary object
If the display component size is increased to improve display area, then more information can be displayed, but the volume and weight of the device increase
Solution Approach 1:
The patent creates a virtual image as an optical copy of the original display image. The light guide plate and optical elements generate a virtual image that appears larger than the physical display component, allowing the user to perceive a larger display area without physically enlarging the display component. This copying approach resolves the contradiction between display area and device volume.
3Area of stationary object
If the display component size is increased to improve display area, then more information can be displayed, but the weight of the device increases
Solution Approach 1:
The patent creates a virtual image as an optical copy of the original display image. The light guide plate and optical elements generate a virtual image that appears larger than the physical display component, allowing the user to perceive a larger display area without physically enlarging the display component. This copying approach resolves the contradiction between display area and device volume.
4Area of stationary object
If optical path conversion components are added to enlarge the image, then the perceived image size increases, but the device complexity increases
Solution Approach 1:
The patent integrates the light guide plate with the display component structure, merging multiple functions into a single integrated component. The light guide plate serves both as a structural element and as the optical element that creates the virtual image, reducing the number of separate components and simplifying the overall device structure while still achieving the image enlargement effect.
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 more comfortable wearing experience by increasing the perceived image size beyond the display component's size, reducing the device's volume and weight, and allowing flexible positioning of components for improved ergonomics.
Implementation Method 1
a transmission optical component at least partially provided within an irradiation area of the initial light and configured to transmit the initial light corresponding to the first image from the display component and perform light path conversion to convert it into a first exit light
Implementation Method 2
an adjustment optical component at least partially provided within an irradiation area of the first exit light and configured to perform light path conversion on the first exit light to obtain a second exit light
Implementation Method 3
the collimating unit is configured to collimate the first exit light from the transmission optical component into collimated light corresponding to the first image
Implementation Method 4
the waveguide unit guides the collimated light corresponding to the first image from the collimating unit to the particular position
Implementation Method 5
the first exit light is reflected by the polarization beam splitting subunit to the first collimating subunit
Data Source
AI summary
A display device and an electronic apparatus using the display device are described. The display device includes a display component configured to output initial light corresponding to a first image; and a transmission optical component at least partially provided within an irradiation area of the initial light and configured to transmit the initial light corresponding to the first image from the display component and perform light path conversion to convert it into a first exit light; and an adjustment optical component at least partially provided within an irradiation area of the first exit light and configured to perform light path conversion on the first exit light to obtain a second exit light, wherein an image corresponding to the first image is capable of being perceived at a particular position.