Synchronous Screen Setting Adjustment via DPCD Daisy Chain
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Solution Overview
Problem
Conventional daisy chain serial connection technologies for multiple screens, such as those using the DisplayPort standard, require cumbersome and error-prone manual adjustments of settings like brightness, contrast, and color temperature for each screen, leading to inconsistent configurations.
Innovation Solution
A method and system for synchronously adjusting screen settings across a multi-screen system using a daisy chain technology, where screen settings are written to display port configuration data (DPCD) and transmitted through physical links, allowing each screen to read and adjust its configuration automatically to match a central setting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment of screen settings is performed for each screen individually, then each screen can be configured independently, but the operation becomes cumbersome and error-prone, leading to inconsistent configurations
Solution Approach 1:
The patent merges the setting control of multiple screens into a single operation. By writing the screen setting to the DPCD of one screen, the setting is automatically propagated to all other screens in the daisy chain connection, achieving synchronized configuration across all screens without manual adjustment of each individual screen.
Solution Approach 2:
The patent makes the DPCD configuration mechanism universal across multiple screens. The same DPCD setting written to one screen's display port address automatically applies to all screens in the system, allowing a single configuration action to control multiple screens uniformly.
2Adaptability or versatility
If manual adjustment of screen settings is performed for each screen, then individual screen configuration is possible, but time consumption increases due to the cumbersome adjustment process
Solution Approach 1:
The patent combines multiple individual setting operations into a single operation. By propagating the DPCD setting from one screen to all other screens automatically, the system eliminates the need for repeated manual adjustments on each screen, significantly reducing the time required for configuration while maintaining individual screen configurability through the same unified process.
3Ease of operation
If separate setting operations are performed on each screen, then detailed control is achievable, but the device complexity increases due to multiple adjustment operations required
Solution Approach 1:
The patent merges multiple separate setting operations into a single operation by utilizing the daisy chain connection and DPCD propagation mechanism. Instead of requiring separate adjustment operations for each screen, the system performs one setting operation that automatically configures all screens, thereby reducing operational complexity while maintaining detailed control capability.
Data Source
AI summary
A method for synchronously adjusting a screen setting for a multi-screen system, wherein the multi-screen system supports a daisy chain tech, the method comprising: via a first physical link between an electronic device and a first screen of the multi-screen system, writing a first DPCD including a screen setting in a first display port address of the first screen, and via a second physical link between the first screen and a second screen, writing a second DPCD including the screen setting in a second display port address of the second screen.