Display Frame Overlay Synchronization With Area-Based Transparency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display apparatuses face issues with mismatch and distortion when overlapping video and graphic signals due to separate processing paths, leading to user inconvenience and visual fatigue.
Innovation Solution
A display apparatus with a main processor providing area information for video frames, a video processor outputting corresponding areas, and a graphic processor adjusting transparency based on generated transparency information, ensuring synchronized and distortion-free overlapping of video and graphic frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If separate processors are used for video and graphic signals, then processing capability is improved, but synchronization accuracy deteriorates
Solution Approach 1:
The patent introduces a synchronization signal as an intermediary between the video processor and graphic processor. This synchronization signal coordinates the processing and output of both processors, ensuring that video frames and graphic frames are displayed at the correct timing despite being processed separately. The synchronization mechanism allows independent processing while maintaining temporal alignment.
2Adaptability or versatility
If separate processing paths are used for video and graphic signals, then processing flexibility is improved, but image quality deteriorates
Solution Approach 1:
The patent merges the video frame and graphic frame at the display output stage while maintaining their separate processing paths. The synchronization mechanism ensures that when combined, the video and graphic content align perfectly in terms of timing and positioning, preserving image quality despite the flexibility of separate processing.
3Speed
If separate processors process video and graphic signals independently, then processing speed is improved, but display accuracy deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the synchronization processor monitors the output timing of both video and graphic processors. Based on this feedback, it adjusts the timing of frame output to ensure that video and graphic content are displayed synchronously. This closed-loop control maintains display accuracy while allowing fast independent processing.
Data Source
AI summary
A method performed by a display apparatus, includes:outputting, by a video processor, a video frame comprising a first area corresponding to area information for the video frame; outputting a graphic frame; generating transparency information corresponding to the area information of the video frame; providing the area information of the video frame and the generated transparency information; adjusting a transparency of a second area of the graphic frame based on the area information and the transparency information; and outputting an image overlapping the video frame and the graphic frame comprising the second area having the adjusted transparency.