Display Device Operation Region Setting via Signal Light
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Solution Overview
Problem
In electronic blackboard systems, users face inconvenience when changing the number of valid operation regions or assigning them, as these operations require activating an application interface and cannot be performed during input operations.
Innovation Solution
A display device and light-emitting device combination that uses a user interface unit and imaging unit to detect a first signal light, determining a valid operation region based on captured images, and a control unit that refers to a data table to generate a command signal light for setting valid operation regions, allowing users to set operation regions simply and intuitively without interfering with input operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If users activate an application interface to change the number of operation regions or assign them, then the operation region settings can be modified, but input operations cannot be performed during the setting process
Solution Approach 1:
A light-emitting device is introduced as an intermediary tool to transmit setting information optically. The device emits light signals that encode operation region configuration data, which the display device detects and processes. This intermediary mechanism enables setting operations to occur simultaneously with input operations, as the light transmission does not interfere with the touch panel's input detection capability.
2Productivity
If the display screen is partitioned into multiple operation regions for simultaneous multi-user input, then multiple users can operate concurrently, but the complexity of setting and managing these regions increases
Solution Approach 1:
The system automatically detects the light signal from the light-emitting device and processes the encoded setting information without requiring manual configuration through complex interfaces. The automatic detection and processing mechanisms reduce the management burden, allowing multi-user operation regions to be configured simply by pointing the light-emitting device at the desired screen regions.
3Manufacturing precision
If an application interface is used to configure operation regions, then detailed setting options are available, but the setting process interrupts ongoing input operations and reduces efficiency
Solution Approach 1:
The mechanical interaction of activating interfaces and navigating menus is replaced with an optical signal transmission system. The light-emitting device transmits setting commands wirelessly through light, which the display device's imaging unit detects. This substitution eliminates the need to interrupt input operations for configuration, as the setting process occurs through non-contact optical communication that coexists with normal input operations.
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 simple and convenient setting of valid operation regions, improving user experience by allowing operation region adjustments without interrupting input operations.
Implementation Method 1
an imaging unit that captures images of the display screen and the first signal light
Data Source
AI summary
A display device is used in combination with a light-emitting device that emits first signal light. The display device has: a user interface unit that receives input operations using an indicator upon a display screen; and an imaging unit that captures images of the display screen and the first signal light. On the basis of captured images supplied from the imaging unit, the user interface unit takes a region of the display screen that is within a distance range that is determined in advance from the detected position of the first signal light as a valid operation region in which input operations using the indicator are valid.