Partial Frame Buffer Processing for Multi-Panel DSI Displays
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Solution Overview
Problem
Existing graphics processing units (GPUs) face challenges in efficiently supporting multiple display panels with different content and resolutions using a single display serial interface, leading to frame drops and increased power consumption due to full-size frame buffer processing.
Innovation Solution
A novel design for partial display from a full-size frame buffer that allows dividing and scaling an image across multiple display panels, enabling them to show different contents with a single DSI interface at minimal cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If full-size frame buffer processing is used to support multiple display panels, then display content coverage is improved, but power consumption increases and frame drops occur
Solution Approach 1:
The patent segments the frame buffer processing by dividing the display buffer into multiple portions, each corresponding to a specific display panel. The display processing unit selectively processes only the relevant portions needed for each panel rather than processing the entire frame buffer, thereby reducing power consumption while maintaining support for multiple panels with different content and resolutions
2Adaptability or versatility
If full-size frame buffer processing is used to support multiple display panels, then display content coverage is improved, but frame drops occur
Solution Approach 1:
The patent segments the frame buffer processing by dividing the display buffer into multiple portions, each corresponding to a specific display panel. The display processing unit selectively processes only the relevant portions needed for each panel rather than processing the entire frame buffer, thereby reducing power consumption while maintaining support for multiple panels with different content and resolutions
3Adaptability or versatility
If multiple display panels with different resolutions are supported, then display versatility is improved, but processing complexity increases
Solution Approach 1:
The patent applies local quality by configuring the display processing unit to handle different processing parameters for different portions of the frame buffer. Each portion can be processed with resolution-specific settings appropriate for its target display panel, allowing the system to support multiple resolutions and panel types without requiring a completely separate processing path for each configuration
4Device complexity
If a single DSI interface is used for multiple display panels, then device complexity is reduced, but display capability is limited
Solution Approach 1:
The patent implements multi-functionality by enabling a single display serial interface to drive multiple display panels with different resolutions and content requirements. The display processing unit dynamically configures the interface to handle different panel configurations, allowing one interface to perform the work of multiple specialized interfaces while maintaining full display capability across all panels
Data Source
AI summary
The present disclosure relates to methods and apparatus for display processing. Aspects of the present disclosure can communicate an image to multiple display panels, where the multiple display panels include a first display panel and a second display panel. Further, aspects of the present disclosure can divide the image between the first display panel and the second display panel. Additionally, aspects of the present disclosure can scale at least one of a first portion of the image or a second portion of the image to at least one of the first display panel and the second display panel. Aspects of the present disclosure can also display at least one of the scaled first portion of the image or the scaled second portion of the image on at least one of the first display panel or the second display panel.