Display Ratio Switching for External Video Compatibility
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Solution Overview
Problem
Current display apparatuses are limited to fixed image display ratios, leading to issues with user experience due to mismatched viewing angle ratios between the display and external devices, resulting in signal incompatibility and poor display quality.
Innovation Solution
A display apparatus and method that allows users to input commands to switch viewing angle ratios, sending declaration information to external devices to match the display's supported ratios, enabling the display to receive and display multimedia content accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a display apparatus uses a fixed image display ratio, then the device structure is simple and stable, but the adaptability to different external devices and viewing angles is poor
Solution Approach 1:
The display apparatus dynamically adjusts the image display ratio based on user input commands and external device capabilities. The system transitions from a static fixed ratio to a dynamic adjustable ratio, allowing the display to adapt to different viewing angles and external devices while maintaining operational simplicity through automated control
Solution Approach 2:
The patent changes the display parameter (image ratio) from a fixed value to a variable that can be switched between multiple ratios (e.g., 16:9, 4:3, 21:9). This parameter change enables the display apparatus to accommodate different external devices and viewing preferences without requiring complex structural modifications
2Adaptability or versatility
If the display apparatus supports multiple viewing angle ratios, then the adaptability improves, but the signal compatibility and display quality may deteriorate
Solution Approach 1:
The system implements a feedback mechanism where the display apparatus sends declaration information to external devices to verify capability matching. The external device responds with audio and video meta information, allowing the system to confirm signal compatibility before switching to a different viewing angle ratio, thereby maintaining display quality and reliability
Solution Approach 2:
Before switching to a different viewing angle ratio, the system performs preliminary actions by sending declaration information to the external device and verifying capability compatibility. This preliminary verification ensures that the signal chain can support the requested ratio, preventing display quality degradation or incompatibility issues
3Ease of operation
If the display apparatus automatically switches viewing angle ratios, then the user experience improves, but the operation complexity increases
Solution Approach 1:
The display apparatus performs self-service by automatically managing the viewing angle ratio switching based on user preferences and external device capabilities. The system handles the complex communication and verification processes autonomously, providing an simplified user experience where users can select desired ratios without dealing with technical complexities
Data Source
AI summary
A display apparatus and a display method are disclosed. The display apparatus includes: a display, configured to display an image and/or a user interface; an external device interface, configured to connect an external device; at least one processor, configured to execute instructions to cause the display apparatus to: obtain a first command input from a user for switching a viewing angle ratio; obtain audio and video meta information of the external device, and parse a flag field in the audio and video meta information; send declaration information to the external device according to the first command in response to the flag field being identical to a determination field; receive video data returned from the external device for the declaration information, where an image ratio of the video data is equivalent with the switched viewing angle ratio; and control the display to display the video data.