Optical Hand Gesture Display Control via Light Reflection
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Solution Overview
Problem
Current portable terminal user interfaces, such as touch screens, lack efficient methods for controlling display settings like menu lists, screen direction, and size using hand movements, limiting user interaction and flexibility.
Innovation Solution
A method and device utilizing an optical touch sensor to recognize and estimate a user's hand shape, allowing for the control of display settings by detecting light reflections, enabling simultaneous display of higher and lower menu lists, determining screen shift direction and speed through finger gestures, and adjusting screen size based on hand shape changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional touch screen interfaces are used, then basic touch control is achieved, but user interaction flexibility and display control capability are limited
Solution Approach 1:
The patent replaces traditional mechanical touch screen interaction with an optical sensing system using photo sensors to detect hand gestures. The photo sensors detect light reflections from the user's hand to recognize gestures such as open hand, closed fist, and finger pointing, enabling more flexible and intuitive display control without physical contact
Solution Approach 2:
The system changes the detection parameter from direct touch pressure to optical reflection characteristics. By monitoring light reflection intensity and patterns from the user's hand, the system can distinguish between different gestures and dynamically adjust display parameters such as menu list display mode, screen direction, and screen size based on recognized hand shapes
2Adaptability or versatility
If photo sensors are used to detect hand gestures, then display control flexibility is improved, but system complexity increases
Solution Approach 1:
The photo sensor system serves multiple functions: it detects hand gestures for menu list control, determines screen direction, and adjusts screen size. This multi-functional approach consolidates what could be separate control systems into a single sensor-based interface, managing complexity while enhancing versatility
Solution Approach 2:
The system automatically recognizes hand gestures and translates them into appropriate display control actions without requiring manual programming or complex intermediate processing. The photo sensors continuously monitor the environment and autonomously interpret hand shapes to control display parameters, reducing the burden on the user and simplifying the control architecture
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 users to control display settings intuitively using hand gestures, allowing for simultaneous display of multiple menu levels, adjustable screen direction and speed, and dynamic screen size changes, enhancing user interaction and interface flexibility.
Implementation Method 1
a sensor unit for detecting light reflected by a user's hand
Data Source
AI summary
Disclosed is a method for controlling a display and a display using the same. The method includes: detecting the approach of a user's hand to the display unit, determining a user's input hand shape; and displaying a display screen corresponds to the determined user's input hand shape. Through the present invention, a user may render a higher menu list and a lower menu list to be displayed on one screen, and may control display screen shift direction and speed, merely by performing a finger extending and folding action. Further, the user may control the size of a display screen by inputting the finger extending and folding action.