Head-Mounted Display for E-Book Reading via Gesture Control
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Solution Overview
Problem
Existing e-book terminals face challenges with navigation, bookmarking, and page-turning functions, which are not intuitive and do not replicate the experience of reading a physical book, especially in mobile environments where screen size and weight are limitations.
Innovation Solution
A head-mounted display apparatus that includes a mobile device processing unit for tracing movement and orientation, a gesture processing unit for input manipulation, and a rendering unit to generate and display a virtually augmented contents image, allowing for natural navigation, bookmarking, and page-turning through sound and vibration feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a traditional e-book terminal is used to provide high resolution and wide field of view for reading, then the display quality is improved, but the volume and weight of the terminal increase
Solution Approach 1:
The patent transitions from a traditional 2D flat display to a 3D volumetric display using light field technology. By displaying light rays in three-dimensional space rather than on a flat surface, the system achieves wide field of view and high resolution without requiring a large physical display area, thus avoiding increased terminal weight.
Solution Approach 2:
The patent replaces the mechanical display system (physical screen pixels) with an optical system that generates light fields. Instead of using a large physical display panel, the system uses optical elements to create volumetric images in air space, eliminating the need for heavy display hardware while maintaining high resolution and wide viewing angles.
2Adaptability or versatility
If a three-stage menu selecting process is used for bookmark navigation, then the bookmark function is implemented, but the cognitive burden increases and reading is disturbed
Solution Approach 1:
The patent extracts the bookmark navigation function from the complex three-stage menu system and implements it as a direct, single-stage gesture control. By removing the intermediate menu layers, the system allows users to navigate bookmarks through simple natural gestures, reducing cognitive burden while maintaining full bookmark functionality.
Solution Approach 2:
The system enables self-service navigation where the user's natural gestures directly control bookmark access without requiring menu interactions. The gesture recognition system automatically interprets user intentions and executes bookmark navigation, eliminating the need for manual menu selection processes.
3Adaptability or versatility
If touch screen pinching gestures are used for enlarging or reducing e-book content, then the zoom function is implemented, but keyboard or mouse manipulations are required which are not natural
Solution Approach 1:
The patent replaces the touch screen interface with gesture-based control in the air space. Instead of requiring users to touch the screen and perform pinching gestures, the system recognizes hand gestures performed in three-dimensional space, providing a more natural interaction that mimics physical book handling without contact with the display surface.
4Adaptability or versatility
If a scroll bar or thumbnail GUI is used to move to distant positions, then the navigation function is implemented, but the user may forget the contents of the e-book while manipulating graphic objects
Solution Approach 1:
The patent removes the graphical interface elements (scroll bars, thumbnails) that cause distraction and information loss. By extracting the navigation function from these visual elements and implementing it through invisible gesture recognition, the system allows users to navigate distant positions without being exposed to distracting graphic objects that may cause them to forget the reading content.
Data Source
AI summary
Disclosed are a head-mounted display apparatus and a contents display method. The head-mounted display apparatus includes: a mobile device tracing information processing unit for receiving position information or orientation information of a mobile device and generating tracing information of the mobile device based on the received position information or orientation information of the mobile device; a gesture processing unit for receiving input information of the mobile device and generating gesture information to change an output format of contents by using the received input information; a rendering unit for generating a predetermined virtually augmented contents image based on the tracing information of the mobile device and the gesture information; and a display unit for displaying the generated virtually augmented contents image.