Handheld Device Synchronous TV Display via HDMI Resolution Conversion
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Solution Overview
Problem
Conventional handheld devices struggle to display high-quality images on TV sets due to low resolution, resulting in stretched and deformed visuals, and existing synchronous display techniques either increase hardware costs or fail to enhance resolution effectively.
Innovation Solution
A handheld device equipped with a display management module and an output management module, connected via HDMI, uses a digital-analog converting chip to process and compress display data to match both the TV set and handheld device resolutions, ensuring synchronized and clear image display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If low-resolution display data from handheld device is transmitted to TV set screen, then the TV set can display content, but the image quality deteriorates with stretch and deformation
Solution Approach 1:
The patent changes the resolution parameter of display data dynamically. The display management module detects the connected display device type (handheld device or TV set) and transforms the output data resolution accordingly - maintaining original resolution for handheld devices and converting to TV set resolution for televisions, thereby resolving the contradiction between compatibility and image quality
Solution Approach 2:
The patent segments the display output into two independent processing paths: one path processes data for handheld device display while preserving original resolution, and another path processes data for TV set display with resolution transformation. This segmentation allows each path to optimize for its specific display device, maintaining image quality while ensuring compatibility
2Manufacturing precision
If hardware-based synchronous display technique with digital signal conversion is used, then image quality improves, but hardware cost increases greatly
Solution Approach 1:
The patent replaces complex hardware-based digital signal conversion systems with a software-based display management module. This module uses digital signal processing algorithms to achieve the same synchronous display effect without requiring expensive additional hardware components, thereby improving display effect while reducing hardware cost
Solution Approach 2:
The display management module serves multiple functions: it detects display device type, transforms resolution parameters, manages synchronous display timing, and controls data output to different devices. This multi-functional software module replaces what would traditionally require multiple separate hardware components, reducing overall system cost while maintaining high display quality
3Ease of manufacture
If analog signal conversion is used for synchronous display, then hardware cost is reduced, but display effect on TV set screen deteriorates significantly
Solution Approach 1:
The patent substitutes analog signal conversion with digital signal processing. The display management module processes display data in digital form, transforming resolution parameters through digital algorithms before output. This digital approach maintains high display quality while keeping hardware costs low, as it uses standard digital processing components rather than expensive analog conversion hardware
4Area of stationary object
If display data is stretched to match TV set screen resolution, then full screen display is achieved, but original resolution information is lost and user experience deteriorates
Solution Approach 1:
The patent segments the display data processing into separate paths for different device types. For TV set output, it creates a dedicated transformation path that scales resolution appropriately, while for handheld device output, it preserves the original resolution path. This segmentation ensures that resolution information is maintained where needed while adapting display area where appropriate
Solution Approach 2:
The display management module dynamically changes resolution parameters based on the target display device. When outputting to TV sets, it transforms the resolution parameter to match the larger screen while maintaining aspect ratio and content integrity. When outputting to handheld devices, it preserves the original resolution parameter, preventing loss of resolution information and maintaining optimal user experience
Data Source
AI summary
The present invention discloses a handheld device and a method for a handheld device to display synchronously with a TV set. The handheld device includes a display management module for converting output display data into data corresponding to a TV set screen resolution and displaying same on the TV set screen, and an output management module for converting the output display data into data corresponding to a handheld device resolution and displaying same on a handheld device screen synchronously with the TV set screen, the handheld device being connected to the TV set via an HDMI cable. A bidirectional synchronous display function is achieved in the present invention.