Tablet Computer Dual-Mode Signal Conversion for Universal Display Compatibility
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Solution Overview
Problem
Conventional methods for controlling tablet computers restrict their compatibility to only specific notebook computers due to differences in hardware configurations and display signal formats, limiting their portability and functionality when trying to utilize the operating system of a notebook computer.
Innovation Solution
A tablet computer with a processor and display module capable of operating in both tablet computer mode and external device mode, equipped with low voltage differential signal converters and a switch to convert and output video signals, allowing it to function as a display device for any external device by selectively switching between modes based on connection and input signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the tablet computer uses low voltage differential signal format only, then the display compatibility is limited to specific notebook computers, but the hardware configuration simplicity is maintained
Solution Approach 1:
The tablet computer is designed with dual signal conversion capability: it can convert video signals from external devices into low voltage differential signals for its display module, and also output low voltage differential signals to external displays. This multi-functionality allows the tablet to work with various external devices regardless of their native signal format, achieving universal compatibility without requiring different hardware configurations for different devices
Solution Approach 2:
The low voltage differential signal converter acts as an intermediary component between the external device input interface and the display module. It receives video signals in various formats from external devices, converts them to the low voltage differential signal format that the display module can process, and outputs the converted signals. This intermediary conversion mechanism enables compatibility with diverse external devices while maintaining simple hardware architecture
2Adaptability or versatility
If the tablet computer connects to notebook computers using special hardware, then the operating system of the notebook computer can be used, but the portability is adversely affected
Solution Approach 1:
The tablet computer incorporates a universal external device input interface that accepts video signals from various types of external devices including notebook computers, regardless of their operating systems or native signal formats. By converting these signals to the tablet's display module through the low voltage differential signal converter, the tablet can function as a display device for any external device, enabling operating system compatibility without requiring special hardware for each device type, thus maintaining portability
Data Source
AI summary
The present invention discloses a tablet computer and a method for controlling the same. The method includes steps of receiving a first video signal outputted from an external device; converting the first video signal into a first low voltage differential signal; receiving a second video signal outputted from a processor; converting the second video signal into a second low voltage differential signal; making the tablet computer selectively operate in a tablet computer mode or an external device mode; outputting the second low voltage differential signal to a display module to display corresponding data when the tablet computer operates in the tablet computer mode; and outputting the first low voltage differential signal to the display module to display corresponding data when the tablet computer operates in the external device mode.