Display Apparatus Guidance for Media Positioning
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Solution Overview
Problem
Current display technologies lack an efficient method to guide users on positioning media, such as cards or mobile information terminals, for accurate reading and processing, particularly in public spaces where multiple types of documents and payments are involved.
Innovation Solution
A display apparatus with a reading unit and a display unit that projects guidance information onto a surface, indicating the correct position for reading information associated with media placed on an operation stand, using a combination of projectors, detectors, and cameras to facilitate print and scan operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If guidance information is displayed to help users position media correctly, then ease of operation is improved, but device complexity increases due to additional projectors, detectors, and cameras
Solution Approach 1:
The patent introduces a display apparatus as an intermediary component that projects guidance information onto the operation stand surface. This mediator guides users on correct media positioning without requiring direct complex interactions with the reading unit or processing system, thereby improving ease of operation while isolating the complexity within the display apparatus itself
Solution Approach 2:
The patent replaces mechanical positioning guidance (physical guides or manual adjustment) with optical projection of guidance information. By using projectors, detectors, and cameras to display visual cues on the operation stand, the system substitutes mechanical guidance mechanisms with optical/electronic ones, improving user convenience while consolidating complexity into integrated detection and display components
2Measurement precision
If multiple detection devices (detectors, cameras) are used to detect medium position and display guidance information, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple detection functions (position detection, medium type detection, reading state detection) into a single integrated display apparatus that projects guidance information. By merging these detection capabilities and presenting unified visual feedback on the operation stand, the system achieves high measurement precision while reducing the perceived complexity through functional integration
Solution Approach 2:
The display apparatus serves multiple functions: it detects medium presence, determines medium type, identifies reading state, and projects appropriate guidance information all through a single system. This multi-functionality allows the patent to achieve high measurement precision across different detection tasks without proportionally increasing device complexity, as one apparatus performs multiple roles
3Ease of operation
If guidance information is projected onto the operation stand surface, then ease of operation is improved, but illumination intensity requirements increase
Solution Approach 1:
The patent projects guidance information locally onto the specific area of the operation stand where media positioning is needed, rather than illuminating the entire surrounding area. This localized projection approach provides sufficient illumination intensity exactly where required for user interaction, improving ease of operation while minimizing overall illumination requirements and energy consumption
Data Source
AI summary
A display apparatus includes: a reading unit that reads information; and a display unit that, in response to an operation of moving a medium closer to a display surface or placing the medium on the display surface, displays on the display surface guidance information that guides a position, at which information associated with the medium is readable by the reading unit, on the display surface.