Progressive Display Updates for Electronic Paper
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Solution Overview
Problem
Electronic devices with displays, particularly electronic paper displays, face challenges in balancing the speed and quality of updates, as purely black and white updates are fast but less appealing, while grayscale updates are slower and more visually appealing but time-consuming.
Innovation Solution
Implementing progressive update techniques that first render updates in black and white for quick feedback and then transition to grayscale, using a timer to schedule a subsequent grayscale update unless the display area is updated again, thereby providing a fast initial response followed by a higher quality rendering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If grayscale updates are used, then visual quality is improved, but update speed deteriorates
Solution Approach 1:
The update process is segmented into two distinct phases: a first update mode that provides immediate visual feedback and a second update mode that enhances visual quality. This segmentation allows the system to deliver both fast response and high quality rendering by separating the update into sequential stages rather than requiring a single comprehensive update.
Solution Approach 2:
The first update mode performs preliminary rendering actions that provide immediate visual feedback to the user. This preliminary action establishes a baseline display state quickly, and subsequent second updates refine and enhance the visual quality without requiring the user to wait for the complete high-quality rendering process.
2Speed
If black and white updates are used, then update speed is improved, but visual appeal deteriorates
Solution Approach 1:
The display update is divided into two segments: an initial fast update that prioritizes speed and a subsequent enhanced update that prioritizes visual appeal. This segmentation enables the system to satisfy both requirements by delivering immediate feedback through the first update and enhancing visual quality through the second update.
Solution Approach 2:
The system maintains continuous useful action by immediately executing the first update mode to provide visual feedback, then continuously refining the display through the second update mode. This continuous process ensures that the user receives immediate response while the system continues to improve visual quality in the background.
Data Source
AI summary
Techniques for performing progressive updates on displays of respective electronic devices. The techniques may update a display in two or more steps for the purpose of first providing a quick response and thereafter providing a higher quality rendering of the update. For instance, when the techniques receive an indication that the device has received an instruction to perform an update on a particular portion of the display, the techniques may compare one or more aspects of the update to one or more predefined criteria. If the update satisfies the criteria, then the techniques may instruct a display controller to first perform the update in black and white and may set a timer for later instructing the display controller to perform the update in grayscale.