Laser Pointer Display System with Infrared Control
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Solution Overview
Problem
Existing display systems are inconvenient for presentations and multiplayer games as they require users to operate the screen with a mouse or controller while pointing with a laser pointer, limiting smooth operation and allowing only one user to interact with the screen.
Innovation Solution
A display system comprising a display device and a light-emitting apparatus that emits both visible and invisible light. The display device includes a display unit that displays images and obtains positional information from visible light, while the light-emitting apparatus has separate controls for visible and invisible light emission, allowing the screen to be operated using a laser pointer and enabling multiple users to interact simultaneously.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a laser pointer is used to point at the screen, then the user can indicate the desired location, but the user cannot operate the screen simultaneously
Solution Approach 1:
The patent combines the laser pointer and controller functions into a single integrated device. The light-emitting apparatus includes both a visible light emitter (laser pointer) for position indication and an invisible light emitter (infrared LED) for control signals, allowing the user to point and operate the screen simultaneously with one device rather than requiring separate tools.
Solution Approach 2:
The light-emitting apparatus serves multiple functions: it acts as both a position indicator (laser pointer) and a control device (remote controller) for the display system. This multi-functional design eliminates the need for separate devices and enables simultaneous position indication and screen operation.
2Measurement precision
If only one user operates the screen with a mouse or controller, then control is precise, but other users cannot interact with the screen
Solution Approach 1:
The display device includes light-receiving units that detect invisible light (infrared) emitted by the light-emitting apparatus. This intermediary optical communication channel enables multiple users to operate the screen simultaneously from different locations, as each user's light-emitting apparatus transmits control signals through the air to the display device's light-receiving units, maintaining precision while enabling multi-user interaction.
3Reliability
If separate devices are used for laser pointer and controller functions, then each device can be optimized, but the overall system complexity increases
Solution Approach 1:
The patent merges the laser pointer and controller into a single light-emitting apparatus, reducing system complexity while maintaining the reliability of both functions. The integrated design eliminates the need for multiple separate devices and simplifies the overall system architecture.
Solution Approach 2:
The light-emitting apparatus is designed to perform multiple functions (position indication and control signaling) within a single device, reducing the total number of components needed in the system while maintaining optimized performance for each function through dedicated emitters.
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 system provides a highly convenient display solution that allows easy operation of the screen using a laser pointer, enabling multiple users to interact simultaneously, and reducing manufacturing costs while ensuring high quality and reliability.
Implementation Method 1
The light-emitting apparatus includes a light-emitting element that emits visible light and a light-emitting element that emits invisible light
Implementation Method 2
a light-receiving unit that includes a light-receiving element and a control unit that controls the light-receiving element to receive the invisible light
Data Source
AI summary
A highly convenient display system is provided. A display system that enables a screen to be operated easily with a laser pointer is provided. A display system that enables a screen to be operated by a large number of people is provided. The display system includes a light-emitting apparatus and a display device. The light-emitting apparatus includes a means for emitting visible laser light and a means for emitting invisible light. The display device includes a display unit including a means for displaying an image and a means for obtaining positional information on a portion irradiated with the visible light, and a means for receiving the invisible light. The display system has a function of performing processing in accordance with the positional information when the invisible light is received.