Dual Vibrator Tactile Feedback for Touch Screen Devices
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Solution Overview
Problem
Existing electronic devices with touch screen panels lack the ability to provide varied and adaptive tactile sensations during user interactions, limiting user operability and feedback.
Innovation Solution
An electronic device comprising a housing, a display, a touch screen panel, a first vibrator for the display or touch screen panel, a second vibrator for the housing, and a vibration controller to control the vibrators based on user input, allowing for distinct tactile sensations for different touch operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single vibration element is used to vibrate the touch screen panel, then the device structure remains simple, but the tactile sensations are limited and cannot be varied according to different user operations
Solution Approach 1:
The vibration generation function is segmented into two independent vibration elements: a first vibration element that vibrates the touch screen panel and a second vibration element that vibrates the housing. This segmentation allows each element to be controlled independently to produce different tactile sensations for different user operations, thereby increasing tactile sensation variety without requiring a single complex vibration system
Solution Approach 2:
The control unit acts as an intermediary that receives operation information from the touch screen panel and selectively activates either the first vibration element, the second vibration element, or both in combination. This intermediary control mechanism enables varied tactile feedback for different operations while maintaining a relatively simple overall device structure through intelligent coordination rather than physical complexity
2Ease of operation
If multiple vibration elements are added to provide varied tactile sensations, then user feedback is enhanced, but the device complexity increases
Solution Approach 1:
Different vibration characteristics are applied to different parts of the device: the first vibration element provides localized vibration to the touch screen panel area where the user is interacting, while the second vibration element provides vibration to the housing that the user holds. This local quality approach enhances user feedback quality by providing context-appropriate vibration sensations without requiring the entire device to be complex, as each vibration element serves a specific local function
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 the presentation of various tactile sensations tailored to specific touch operations, enhancing user interaction and feedback by combining vibrations of the touch screen panel and housing.
Implementation Method 1
a first vibrator configured to vibrate at least one of the display and the touch screen panel
Implementation Method 2
a second vibrator configured to vibrate the housing
Data Source
AI summary
An exemplary electronic device includes: a housing; a display configured to display an operation area; a touch screen panel configured to detect at least an input operation made by a user to the operation area; a first vibrator configured to vibrate at least one of the display and the touch screen panel; a second vibrator configured to vibrate the housing; and a vibration controller configured to control vibration of the first vibrator and the second vibrator in accordance with the input operation of the user to the touch screen panel.