Split-Window Cast Display With Active-Region Cropping
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Solution Overview
Problem
Existing image-casting technologies fail to effectively display portrait-orientation images on external devices in multi-window mode, resulting in black areas on either side of the screen, which degrade the user's viewing experience.
Innovation Solution
A method and circuit system that processes images using an image signal processor to detect active regions, adjust aspect ratios, and crop inactive regions, allowing portrait-orientation images to be displayed optimally in split windows.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a portrait-orientation image is projected onto an external device screen designed for landscape-orientation mode, then the content can be displayed, but two large black areas without any content appear on both sides of the screen
Solution Approach 1:
The screen is divided into multiple display regions, with the portrait-orientation content placed in a dedicated region. This segmentation allows the content to be displayed in its native orientation while the remaining screen space can be utilized for other purposes, eliminating the black areas without compromising the portrait content's display quality.
Solution Approach 2:
The solution transitions from a single-dimensional full-screen display approach to a multi-regional display architecture. By creating distinct display zones (one for portrait content, others for additional content or utilities), the system effectively adds a spatial dimension to the display strategy, allowing simultaneous optimization for both portrait and landscape utilization.
2Adaptability or versatility
If the screen is split into two windows for multi-window display mode, then multiple contents can be displayed simultaneously, but the portrait-orientation image displayed in one split window becomes relatively small and unsuitable for viewing
Solution Approach 1:
Different display regions are assigned different functions and quality characteristics. The region dedicated to portrait-orientation content is optimized for that specific content type, ensuring it receives appropriate attention and display quality. Other regions can be optimized for different content types, allowing each to have the quality it needs without compromising others.
Solution Approach 2:
The display system dynamically adjusts the allocation and sizing of display regions based on the content being displayed. When portrait-orientation content is detected, the system automatically configures the display layout to provide optimal viewing area for that content while maintaining multi-window functionality. This dynamic adaptation allows the system to balance multi-window capability with content-specific display quality.
3Extent of automation
If the portrait-orientation image is displayed in a split window, then multi-window mode functionality is maintained, but the image quality and viewing experience are degraded due to the relatively small display area
Solution Approach 1:
The system performs preliminary detection of the content's orientation characteristics before finalizing the display layout. By identifying portrait-orientation content in advance, the system can proactively configure the display regions to provide optimal viewing experience, rather than reacting after the content is already displayed in an inadequate space.
Solution Approach 2:
The display system incorporates feedback mechanisms that monitor the displayed content's orientation and characteristics, automatically adjusting the display layout to optimize viewing experience. When portrait-orientation content is detected, the system feedback loop triggers a layout reconfiguration that allocates appropriate display real estate, ensuring both multi-window functionality and viewing quality are maintained.
Data Source
AI summary
A method for displaying a casted content on a split window and a circuit system are provided. The circuit system is applied to a display device. When the display device operates under a multi-window display mode, and the method is performed, the circuit system receives an image transmitted from a user device by an image-casting technology. An active region of the image can be obtained through an edge-finding process. The image of the active region can be extracted by cropping an inactive region. The image of the active region can be displayed in one of split windows of the display device after a display ratio of the image is adjusted according to an aspect ratio of the active region.