Holographic Display System With Gesture Control
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Solution Overview
Problem
Traditional two-dimensional displays fail to meet the increasing visual demands of users, necessitating a more immersive and interactive visual experience.
Innovation Solution
A display system incorporating a laser projector, processor, and photodetectors to create and control holographic images, allowing viewer interaction through gesture recognition, with the processor modulating laser beams based on pre-stored holographic data and collected gesture information to generate dynamic holographic images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional two-dimensional display is used, then device simplicity is maintained, but visual demand satisfaction deteriorates
Solution Approach 1:
The patent transitions from traditional two-dimensional display to three-dimensional holographic display by projecting laser beams to create volumetric images in space. The display system uses a laser projector to emit coherent light that forms holographic images floating above the display screen, adding a spatial dimension to the visual experience and satisfying enhanced visual demands.
Solution Approach 2:
The patent introduces a photodetector array as an intermediary component between the viewer and the holographic display. These photodetectors detect gesture information from viewers and convert it into control signals, enabling interactive control of the holographic images without requiring physical contact or complex interfaces.
2Illumination intensity
If holographic projection is added, then visual engagement is improved, but device complexity increases
Solution Approach 1:
The display screen serves multiple functions: it acts as both a traditional two-dimensional display for background images and as a substrate for the holographic projection system. The laser projector is positioned behind the display screen, allowing the same display assembly to provide both 2D and 3D viewing experiences, thereby reducing the need for separate dedicated holographic display components.
3Ease of operation
If gesture recognition is implemented, then interactivity is improved, but measurement precision requirements increase
Solution Approach 1:
The patent implements a feedback loop where the photodetector array continuously monitors gesture information from viewers, the processor analyzes these gestures and generates control signals, and the holographic images respond in real-time to the detected gestures. This closed-loop feedback system enables intuitive gesture control while maintaining robustness against measurement variations through continuous adjustment.
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
Enhances viewer experience by providing a realistic, three-dimensional holographic display with interactive capabilities, improving visual engagement and sensory interaction beyond traditional two-dimensional displays.
Implementation Method 1
the laser projector is configured to project the modulated laser beam to create a first holographic image in front of the first display area
Implementation Method 2
at least one photodetector configured to collect first gesture information about a first gesture though which the first holograph image is controlled by a viewer
Data Source
AI summary
A display system includes: a display screen having a first display area; a processor configured to modulate laser beams to be emitted from a laser projector according to a pre-stored holographic image data source to obtain modulated laser beams; the laser projector configured to project the modulated laser beams to create a first holographic image in front of the first display area; and at least one photodetector configured to collect first gesture information about a first gesture through which the first holographic image is controlled by a viewer. The processor is further configured to generate a first control signal according to the first gesture information, and re-modulate the laser beams to be emitted from the laser projector, so as to create a second holographic image corresponding to the first control signal.