Transflective Curved-Mirror Display for Large Virtual Images
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Solution Overview
Problem
Current large-screen display systems are costly and require significant space, as they need a large projection distance and a specific screen to achieve an enlarged image, limiting their application in smaller spaces.
Innovation Solution
A display apparatus comprising a picture generation unit, a transflective member, and a curved mirror that generates and projects imaging light, allowing for a magnified virtual image to be displayed without the need for a physical screen, thereby reducing the system's volume and enabling large-size image display in smaller spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a large-screen display system is used to achieve an enlarged image, then the display size is improved, but the space occupied and system cost increase
Solution Approach 1:
The patent uses a transflective member to create a virtual image that copies the original image information without requiring a physical screen of the same size. The virtual image appears to be large-scale but occupies minimal physical space, resolving the contradiction between display size and space occupied
Solution Approach 2:
The patent transitions from a two-dimensional physical screen to a three-dimensional virtual image space. By using optical components (transflective member and curved mirror) to project the image into space, the system achieves large display dimensions without proportionally increasing the physical footprint of the device
2Area of moving object
If a projector is used to generate an enlarged image, then the display size is improved, but the projection distance increases
Solution Approach 1:
The patent employs a curved mirror with specific curvature to focus and redirect light rays. This curvature enables the system to achieve large image magnification at short distances by properly focusing the reflected light, eliminating the need for long projection distances required by conventional flat-mirror projectors
3Reliability
If a laser television with a Fresnel screen is used to improve viewing experience, then the image quality is improved, but the space occupied increases
Solution Approach 1:
The patent extracts the essential function of the Fresnel screen (image projection and viewing enhancement) and implements it through a transflective member combined with a curved mirror. This extraction eliminates the need for the bulky physical screen while maintaining the viewing experience through virtual image projection
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 the display of large-size images in compact spaces without the need for a specific screen, improving viewing experience and reducing the overall size and cost of the display system.
Implementation Method 1
the transflective member is configured to reflect the imaging light to the curved mirror
Implementation Method 2
the transflective member is further configured to transmit the imaging light reflected by the curved mirror
Implementation Method 3
the curved mirror is configured to reflect the received imaging light to the transflective member
Implementation Method 4
The picture generation unit is used to generate imaging light including image information and project the imaging light to the transflective member
Data Source
AI summary
A display apparatus includes a picture generation unit, a transflective member, and a curved mirror. The picture generation unit is configured to generate imaging light including image information and project the imaging light to the transflective member, the transflective member is configured to reflect the imaging light to the curved mirror, the curved mirror is configured to reflect received imaging light to the transflective member, and the transflective member is further configured to transmit the imaging light reflected by the curved mirror.