Transflective Mirror AR VR Mode Switching
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Solution Overview
Problem
Conventional augmented and virtual reality display technologies require separate apparatuses for each mode, making it inconvenient for users to experience mixed reality environments as they need to repeatedly switch between them.
Innovation Solution
A display apparatus with an optical main body including a display panel, a transflective mirror, and lenses that allows seamless switching between augmented and virtual reality modes by reflecting or transmitting light to different eyepiece sides, enabling a single device to display both augmented and virtual reality images based on user configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate apparatuses are used for augmented reality and virtual reality display, then each mode can be optimized independently, but users need to repeatedly switch between devices which reduces convenience and increases device complexity
Solution Approach 1:
The patent combines both augmented reality and virtual reality display functions into a single apparatus. The optical main body includes a display panel, transflective mirror, and lenses that can operate in two modes: AR mode where the transflective mirror reflects display panel light to the eyepiece while allowing external light transmission, and VR mode where the mirror transmits display panel light through to the eyepiece. This merging eliminates the need for separate AR and VR devices.
Solution Approach 2:
The patent employs a rotator mechanism that can rotate the optical main body between different orientations to switch between AR and VR modes. The rotator changes the relative positions of the display panel, transflective mirror, and lenses, dynamically reconfiguring the optical path. This dynamic adjustment allows a single device to adapt its function based on the desired mode without requiring multiple static devices.
2Adaptability or versatility
If a single apparatus is used for both augmented and virtual reality, then device portability and ease of operation improve, but the optical system becomes more complex requiring additional components like transflective mirrors and rotators
Solution Approach 1:
The transflective mirror serves multiple functions within the single apparatus: in AR mode it reflects light from the display panel to the eyepiece while simultaneously allowing external environment light to pass through to the user's eye; in VR mode it transmits the display panel light to the eyepiece. This multi-functionality enables one component to support both AR and VR operations, reducing the need for separate dedicated components for each mode.
Solution Approach 2:
The rotator acts as an intermediary mechanism that mediates between the single apparatus structure and the dual-mode requirement. By rotating the optical main body to different orientations, the rotator enables the same physical components to be configured for either AR or VR mode, serving as a transitional element that allows mode switching without requiring completely separate optical systems.
3Ease of operation
If the optical main body is rotated to switch between modes, then mode switching becomes possible, but the rotation mechanism adds structural complexity and potential moving parts
Solution Approach 1:
The rotator mechanism provides dynamic reconfigurability to the optical system. By rotating the optical main body between specific orientations (first orientation for AR mode, second orientation for VR mode), the system dynamically changes its functional state. This dynamic approach allows mode switching through a simple rotational motion rather than requiring complex mechanical reconfiguration mechanisms.
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
Enables users to freely switch between augmented and virtual reality modes within a single apparatus, providing a mixed reality experience without the need for multiple devices, enhancing interactive sensory experiences.
Implementation Method 1
the transflective mirror... configured to reflect a first portion of light emitted from the display panel to the first eyepiece side
Implementation Method 2
allow a second portion of light emitted from the display panel to transmit through the transflective mirror to the first lens
Implementation Method 3
transmit through the first lens to the second eyepiece side of the display apparatus
Implementation Method 4
allow light from the first objective side of the display apparatus to transmit through the transflective mirror to the first eyepiece side
Data Source
AI summary
The present application discloses a display apparatus. The display apparatus includes a display panel and an optical main body. The display apparatus has a first eyepiece side for viewing image on a first objective side of the display apparatus, and a second eyepiece side for viewing image on a second objective side of the display apparatus. The optical main body includes a first lens on a light emitting side of the display panel, and a transflective mirror between the first eyepiece side and the first objective side of the display apparatus and between the second eyepiece side and the second objective side of the display apparatus.