Ancillary Display Screen for E-Book Margin Indicia
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Solution Overview
Problem
Electronic personal display devices face challenges in providing a comfortable reading experience under varying ambient lighting conditions and minimizing battery consumption, as they often suffer from glare and eye strain, especially when displaying e-books, due to their screen technology and limited battery life during extended use.
Innovation Solution
The implementation of a system and method that utilizes an ancillary display screen, typically an e-ink or bi-stable display, located on an edge of the device, which transitions margin indicia from the primary display screen, allowing for a larger area of substantive e-book content to be shown on the primary screen, while the ancillary screen continues to display margin information even when the device is partially powered off, using low power consumption technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the primary display screen is used to display all content including margin indicia, then the device provides complete information display, but the screen produces glare and causes eye strain during extended reading
Solution Approach 1:
The display content is segmented between two separate displays: the primary display screen shows the main e-book content, while the ancillary display screen shows margin indicia such as page numbers, chapter titles, and navigation information. This segmentation allows the primary screen to use glare-reducing technologies while the ancillary display handles supplementary information.
Solution Approach 2:
The ancillary display screen acts as an intermediary device that offloads the display of margin indicia from the primary display screen. This mediator approach allows the primary screen to focus on main content with optimized viewing characteristics while the ancillary display handles secondary information.
2Loss of information
If the primary display screen is used for all content, then information is complete, but battery consumption increases during extended use
Solution Approach 1:
The display functions are segmented between two displays with different power characteristics. The ancillary display screen, being smaller and potentially using e-ink or bi-stable technology, consumes less power for displaying static margin information, thereby reducing overall battery consumption during extended reading sessions.
Solution Approach 2:
The ancillary display screen displays only the necessary margin indicia without showing the full e-book content. This partial action approach reduces the power consumption compared to displaying all content on the primary screen, while still providing complete information access.
3Object-affected harmful factors
If the ancillary display screen is used to display margin indicia, then reading comfort is improved, but the device complexity increases
Solution Approach 1:
The ancillary display screen serves multiple functions: displaying margin indicia, showing navigation information, providing page thumbnails, and enabling quick navigation. This multi-functionality justifies the added device complexity by consolidating various reading assistance features into a single compact display.
4Loss of information
If margin indicia are displayed on the primary screen, then navigation information is accessible, but the area for substantive e-book content is reduced
Solution Approach 1:
The margin indicia are moved from the two-dimensional plane of the primary display screen to a separate ancillary display screen. This dimensional separation allows the primary screen to maximize its content display area while the ancillary display provides navigation information in a different spatial location, effectively adding a third dimension to the information presentation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances reading comfort by reducing glare and eye strain, allows for extended battery life by minimizing primary screen power usage, and provides a persistent display of reading information without significant power depletion, mimicking the experience of reading a physical book.
Implementation Method 1
an ancillary display screen, typically an e-ink or bi-stable display, located on an edge of the device, which transitions margin indicia from the primary display screen
Data Source
AI summary
A method and system for deploying an ancillary display screen of an electronic personal display device in rendering digital content item portions, including a persistent rendering thereof. The method comprises receiving a command to modify a page of e-book content, the page including at least one margin indicia as rendered on the primary display screen, activating the ancillary display screen while displaying the modified page bereft of the at least one margin indicia on the primary display screen; and transitioning display of the at least one margin indicia to the ancillary display screen of the computing device.