On-Screen Display Control for Digital Video Camera OSD Settings
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Solution Overview
Problem
Existing imaging apparatuses, such as digital video cameras, face challenges in providing an intuitive and easily accessible on-screen display (OSD) setting, especially when the OSD is turned off, leading to user confusion when trying to change settings or re-enable the superimposed display.
Innovation Solution
A display control apparatus with a display control unit, setting unit, and control unit that allows for easy switching between OSD on and off states, ensuring high operability and clear information display, even when the display unit is connected or disconnected, by using a digital video camera configuration with a system control unit that manages OSD settings and image processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the OSD superimposition is turned off via menu setting, then the display quality is improved (no distracting OSD elements), but the ease of operation deteriorates (user cannot easily change settings or re-enable OSD)
Solution Approach 1:
The patent implements dynamic behavior where the OSD display state automatically changes based on the connection status of the display unit. When the display unit is connected, the OSD is automatically displayed; when disconnected, the OSD is automatically hidden. This dynamic adaptation resolves the contradiction by making the system responsive to external conditions rather than relying on static user settings.
Solution Approach 2:
The system automatically manages the OSD display state without requiring user intervention. The imaging apparatus itself monitors the display unit connection status and autonomously adjusts the OSD visibility accordingly, eliminating the need for users to manually configure settings while maintaining optimal display quality.
2Device complexity
If the OSD superimposition is turned off, then the information display is simplified, but the loss of information increases (user loses visibility of settings and status)
Solution Approach 1:
The OSD visibility dynamically adapts to the display unit connection status. When connected, comprehensive information is displayed; when disconnected, the OSD is automatically hidden. This ensures information is never lost - it's simply displayed at the appropriate time based on system state.
Solution Approach 2:
The system provides feedback about the display unit connection status and automatically adjusts OSD visibility accordingly. This feedback mechanism ensures that information is displayed when needed (when display unit is connected) and hidden when not needed (when disconnected), preventing information loss while maintaining simplicity.
3Adaptability or versatility
If a menu setting is used to control OSD, then the adaptability is improved (can be turned off), but the device complexity increases (additional settings and menu structures)
Solution Approach 1:
The system automatically manages OSD visibility based on display unit connection status without requiring menu settings or user configuration. This self-service approach maintains adaptability while eliminating the complexity of manual control interfaces.
Solution Approach 2:
The patent extracts the manual control mechanism (menu settings) and replaces it with automatic control based on system state. This removes the complexity of menu structures while preserving the adaptability to different usage scenarios through automatic detection and response.
4Ease of operation
If the OSD is automatically controlled based on display unit connection, then the ease of operation is improved, but the device complexity increases (connection detection and automatic control logic)
Solution Approach 1:
The imaging apparatus autonomously monitors display unit connection status and automatically adjusts OSD visibility without user intervention. This self-service capability significantly improves ease of operation while the complexity increase is minimal since it leverages existing connection detection mechanisms already present in the system.
Data Source
AI summary
If an on/off setting of an on-screen display (OSD) on a liquid crystal display (LCD) panel (“LCD OSD” setting) is changed from on to off on an “LCD OSD” setting screen of a menu screen, a system control unit stores a flag A indicating that the “LCD OSD” setting is changed to off into a system memory. If a menu end operation is made and the flag A is stored, the system control unit changes the “LCD OSD” setting to off and ends the menu screen. The setting of the information display on the LCD panel can thereby be made with high operability.