Multi-Screen Projection via Light Path Splitter
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Solution Overview
Problem
Conventional projectors are limited in their ability to display different images on multiple screens simultaneously, as they typically project the same image on each screen.
Innovation Solution
A display apparatus featuring a light source unit, scanners for direction scanning, and a light path splitter that separates light paths to output distinct projection images onto separate display areas, allowing for the simultaneous display of different images on multiple screens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single projector is used to display images on multiple screens, then the device complexity is reduced, but the capability to display different images on each screen is lost
Solution Approach 1:
The patent divides the light path into separate channels using beam splitters and mirrors, allowing different projection images to be directed to different screens. The single projector is segmented into multiple independent projection paths, each capable of displaying different content simultaneously.
Solution Approach 2:
The patent introduces intermediary optical components (beam splitters, mirrors, and additional scanners) between the projector and screens to enable different images to be projected. These intermediaries facilitate the separation and redirection of light paths without requiring multiple projectors.
2Adaptability or versatility
If multiple scanners are used to project different images to different screens, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The patent segments the projection system by assigning dedicated scanners to specific projection paths and screens. Each scanner independently controls the projection of images to its designated screen, enabling flexible and adaptive multi-screen display without requiring a single complex scanning system.
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 the display of different images on multiple screens while also detecting distance and recognizing gestures through the use of a light output module that outputs projection images and detection light, enhancing user interaction and flexibility in image projection.
Implementation Method 1
a light path splitter configured to separate light paths of the first projection image and the second projection image from each other
Data Source
AI summary
Disclosed is a display apparatus. The display apparatus includes a light source unit configured to output a visible light, a scanner configured to output a first projection image and a second projection image based on the visible light by implementing first direction scanning and second direction scanning, and a light path splitter configured to separate light paths of the first projection image and the second projection image from each other, so as to output the first projection image and the second projection image toward a first display area and a second display area respectively. The display apparatus is capable of projecting different images onto display areas.