Video Output Control for User-Selected VR Image Sizing
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Solution Overview
Problem
Conventional display devices for virtual reality do not allow users to actively adjust the size of the output image based on their preferences.
Innovation Solution
A video output device with a display unit, input unit, and communication unit that allows users to select and adjust the pixel information of the display unit, enabling dynamic changes in image size by transmitting altered pixel information to the video signal transmission device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display device passively outputs the video signal received from an outside, then the device complexity is reduced, but the adaptability is worsened because users cannot adjust the image size according to their preferences
Solution Approach 1:
The display device dynamically changes pixel information based on user-selected output modes (landscape, portrait, various aspect ratios). The controller adjusts horizontal and vertical pixel counts in real-time according to user input, transforming a static display system into a dynamic one that adapts to different viewing preferences without requiring multiple fixed-resolution displays
Solution Approach 2:
The invention changes the pixel parameters (horizontal pixel count, vertical pixel count) of the video signal based on user selection. When a user selects a different output mode, the controller modifies the pixel information and transmits the changed parameters to the video signal transmission device, enabling flexible image size adjustment through parameter modification rather than hardware changes
2Adaptability or versatility
If the pixel information is changed to adjust image size, then the adaptability is improved, but the loss of information may worsen due to potential degradation during signal transmission and processing
Solution Approach 1:
The device performs preliminary action by transmitting the changed pixel information to the video signal transmission device before actual image display. This allows the transmission device to prepare and send the video signal with the correct resolution parameters in advance, ensuring that the image is transmitted in the optimal quality for the selected output mode without post-processing degradation
Solution Approach 2:
The system implements feedback by having the controller transmit the changed pixel information back to the video signal transmission device. This feedback loop ensures that the transmission device is aware of the current display requirements and can maintain signal quality by sending appropriately formatted video data, preventing information loss during transmission
Data Source
AI summary
A video output device includes: a display unit configured to output a video signal received from an outside; an input unit into which user's selection information on an output mode of the display unit is input from a user; and a communication unit configured to transmit pixel information of the display unit corresponding to the selection information input through the input unit to a video signal transmission device. The video output device allows a user to freely adjust the size of an output image on the display unit by changing a video signal received from an outside according to the user's selection.