Wearable Projection Display Using Body Surface for Readability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wearable electronic devices with small screens face challenges in providing large amounts of information due to limited screen size, making it difficult to read small characters or view extensive data.
Innovation Solution
Incorporation of a projection display with a grating arrangement of light-emitting devices and micro-lenses on a wearable device, allowing for information to be projected onto a larger display area adjacent to the housing, enhancing visibility and information capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the screen size of a wearable electronic device is increased to display more information, then the information capacity and readability are improved, but the device weight and size increase, compromising portability
Solution Approach 1:
The patent projects display content from the two-dimensional screen onto the three-dimensional surface of the user's body (wrist, hand, or arm), utilizing the body surface as an extended display area. This dimensional transition allows information to be displayed across a larger area without increasing the physical size of the device itself, thereby resolving the contradiction between information capacity and device portability
2Loss of information
If the screen size is increased to display larger characters and more information, then readability and information visibility are improved, but the device dimensions increase, affecting wearability
Solution Approach 1:
The patent uses the user's body surface as an intermediary medium to display projected images. Instead of enlarging the physical screen, the display content is projected onto the body, which acts as a flexible, portable display surface. This allows large-character display and high information visibility without increasing device dimensions, maintaining wearability while improving readability
3Area of stationary object
If a projection display system is added to the wearable device, then the display area and information capacity are improved, but the device complexity increases
Solution Approach 1:
The projection display system serves multiple functions: it extends the display area, improves readability through larger projected characters, and maintains device portability by using the body surface as the display medium. The same projection mechanism can display various types of information (notifications, messages, data) across different body surfaces, providing universal functionality that justifies the added complexity
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
Enables easy viewing of enlarged information on the body, addressing the limitations of small screen sizes while maintaining device portability and functionality.
Implementation Method 1
a plurality of micro-lenses covering a light-emitting surface of the plurality of light-emitting devices
Data Source
AI summary
Disclosed is a wearable electronic device. The wearable electronic device includes: a display module comprising a display; a housing to which the display module is coupled; and a projection display disposed on a side portion of the housing and configured to display information on a display area adjacent to the housing, the projection display may include: a substrate disposed along a mounting surface provided on a side portion of the housing; a plurality of light-emitting devices comprising light-emitting circuitry disposed on the substrate in a grating arrangement; and a plurality of micro-lenses covering a light-emitting surface of the plurality of light-emitting devices.