TV Display Mode Switching via API Content Detection
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Solution Overview
Problem
Users face inconvenience in manually switching between overscan and underscan modes when connecting a computer to a television set, as existing methods require special hardware and do not adapt automatically based on content type.
Innovation Solution
A display mode switching device with a content identifying mechanism and switching mechanism that automatically switches the television set's display mode between overscan and underscan based on detected content, such as motion videos or games, using API calls to identify content and adjust settings like gamma, brightness, and contrast.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual switching between overscan and underscan modes is implemented, then display mode can be changed, but user convenience deteriorates due to cumbersome operation
Solution Approach 1:
The system automatically detects the type of content being displayed (computer screen, motion video, or game) and autonomously switches between underscan and overscan modes without requiring user intervention. The television set's control unit monitors the input signal type and performs mode switching automatically, allowing the system to serve itself rather than requiring manual user control.
2Adaptability or versatility
If special hardware switching mechanism is used, then display mode switching capability is improved, but device complexity increases
Solution Approach 1:
The television set's existing control unit and signal processing circuitry are utilized to perform multiple functions: normal video processing, content type detection, and display mode switching. Rather than adding dedicated hardware switches, the system uses the universal control unit to analyze input signals and automatically select appropriate display modes, reducing hardware complexity while maintaining versatility.
Solution Approach 2:
The patent replaces mechanical hardware switching mechanisms with an electronic/software-based detection and control system. The control unit uses signal analysis and processing to detect content types and switch display modes, substituting physical switches and mechanical relay systems with electronic control logic that is already present in modern television sets.
3Loss of information
If underscan mode is always used for computer display, then important information visibility is improved, but adaptability to different content types deteriorates
Solution Approach 1:
The display mode is made dynamic rather than static, automatically adjusting between underscan and overscan modes based on the detected content type. When computer screens are detected, the system switches to underscan mode to preserve edge information; when motion videos or games are detected, it switches to overscan mode for better visual coverage. This dynamic adaptation ensures optimal information visibility for each content type.
Solution Approach 2:
The system implements a feedback mechanism where the control unit continuously monitors the input signal type and adjusts the display mode accordingly. The detection of content type (computer screen, motion video, or game) provides feedback that triggers automatic mode switching, ensuring the display mode always matches the current content requirements for optimal information visibility.
Data Source
AI summary
A display mode switching device and method automatically switches a display mode of a television set to an overscan mode or to an underscan mode depending on a content of a screen. In a case of connecting a television set to a computer, a call from an application for an API in an OS is detected by a device driver when a user starts playing a DVD or a game. Accordingly, an output mode for the television set is switched to the overscan mode. In this way, a motion video or a game is displayed on the television set in the overscan mode. Meanwhile, when the user finishes playing the DVD or the game, a call for the API to release resources is detected by the device driver, and the output mode is restored to the underscan mode. In this way, a computer screen is displayed on the television set in the underscan mode.