Multiview Display Operation Detection Across Opposite Sides
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Solution Overview
Problem
Existing multiview display devices lack an effective method to detect and differentiate operations performed by users on opposite sides of the display surface, leading to inefficiencies and increased sensor costs and device size.
Innovation Solution
A multiview display device equipped with a single infrared multizone sensor that detects distances between an object and multiple partial areas of the display surface, allowing it to determine from which side an operation is performed, and adjusts display modes accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple sensors are used to detect operations from different sides, then detection accuracy is improved, but device complexity and cost increase
Solution Approach 1:
The display surface is divided into multiple detection zones (first detection zone and second detection zone) that correspond to different viewing directions. A single sensor detects operations by determining which zone the operation occurs in, eliminating the need for multiple sensors while maintaining detection accuracy for operations from different sides.
Solution Approach 2:
The solution transitions from using multiple sensors positioned at different locations to using a single sensor that detects operations across multiple spatial zones. The detection capability is extended to multiple dimensions by dividing the display surface into zones corresponding to different viewing angles, allowing one sensor to perform what would traditionally require multiple sensors.
2Area of stationary object
If sensor detection zones are enlarged to cover entire display surface, then detection coverage is improved, but device size increases
Solution Approach 1:
The detection surface is segmented into multiple zones (first detection zone, second detection zone, and potentially a third detection zone for central operations). Each zone corresponds to a specific viewing direction or operational area. This segmentation allows comprehensive detection coverage across the entire display surface while keeping the physical sensor size small, as the single sensor detects operations by identifying which zone they occur in.
3Device complexity
If a single sensor is used instead of multiple sensors, then device cost and size are reduced, but detection precision may deteriorate
Solution Approach 1:
The solution uses a single sensor that detects operations across multiple spatial zones corresponding to different viewing directions. By dividing the display surface into zones (first detection zone for first viewing direction, second detection zone for second viewing direction), the single sensor can accurately determine which side an operation originates from by identifying the active zone, maintaining detection precision without requiring multiple sensors.
Solution Approach 2:
The detection capability is segmented into multiple zones that map to different operational contexts (different sides of the display). The single sensor processes detection results by determining which segmented zone contains the operation, thereby achieving side-specific detection accuracy equivalent to what would require multiple dedicated sensors.
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 accurate detection of user operations from different sides of the display surface, reduces sensor costs, and minimizes device size by eliminating the need for enlarged border areas, while optimizing power consumption through mode adjustments.
Implementation Method 1
a distance sensor that detects a distance between an object and each of multiple partial areas which belong to the display surface
Data Source
AI summary
A display device is able to present a first image to a first user positioned on a first side with respect to a display surface and to present a second image to a second user positioned on a second side with respect to the display surface. The second side is a side different from the first side. The second image is an image different from the first image. The display device includes a distance sensor that detects a distance between an object and each of multiple partial areas which belong to the display surface. The display device determines, based on the distance detected by the distance sensor, from which one of the first side and the second side the object is performing an operation for the display surface.