Touch Input Lighting Control for Tap and Slide Feedback
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Solution Overview
Problem
Existing input interface technologies fail to provide a dynamic and expressive optical presentation that accurately reflects the movement speed and type of finger operations, such as tap and slide, on input devices, limiting the range of user interaction and feedback.
Innovation Solution
An input interface device with a detector and light emitters that adjust luminous intensity and emission based on the proximity and movement of a finger, distinguishing between tap and slide operations through controlled light patterns and cursor movement speed adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single light emitter is used at the contact point, then the device structure is simple, but the optical presentation cannot distinguish between different operation types (tap vs slide)
Solution Approach 1:
The detection surface is divided into multiple light emitter positions corresponding to different operational zones. By segmenting the light emission system into multiple discrete emitters positioned at specific locations, the system can selectively activate different emitters based on the type of operation detected (tap vs slide), enabling distinct optical presentations without requiring a completely complex continuous light system.
Solution Approach 2:
Different regions of the detection surface are assigned different light emitter configurations with distinct luminous intensity characteristics. The first light emitter at the contact point uses higher luminous intensity to indicate tap operations, while the second light emitter at the movement end point uses lower luminous intensity for slide operations. This local differentiation of light quality enables the system to convey operational type information through spatial and intensity variations.
2Loss of energy
If light emission continues indefinitely, then the feedback is continuous, but energy is wasted and the trail effect is not achieved
Solution Approach 1:
The light emission is implemented as a periodic action that automatically terminates after a predetermined time period. The control unit stops the light emitters after emitting light for a specific duration following the detection of operation type, creating a time-limited illumination sequence. This periodic emission pattern provides sufficient feedback to distinguish operation types while preventing continuous energy consumption and achieving the desired trail effect through the temporal decay of light emission.
3Adaptability or versatility
If the cursor moves at constant speed, then the control is simple, but the movement speed cannot reflect the user's operation speed
Solution Approach 1:
The cursor movement speed is transformed from a static constant value to a dynamic parameter that adapts based on detected operation characteristics. The control unit adjusts the cursor movement speed according to whether the operation is identified as a tap or slide, and can modulate the speed based on the duration and intensity of the light emission phase. This dynamic speed adjustment allows the cursor to respond intuitively to user operation speed variations without requiring complex real-time calculation systems.
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
Enhances user interaction by providing distinct optical presentations for tap and slide operations, allowing for a more expressive and intuitive user experience on input devices.
Implementation Method 1
a detector having a detection surface and detecting that an object is in contact with or in proximity to the detection surface
Implementation Method 2
a plurality of light emitters disposed alongside at positions corresponding to the detector and making the detection surface light up
Data Source
AI summary
An input interface device includes at least one processor. The processor, in response to a detector not detecting that an object is in contact with or in proximity to a detection surface, causes a plurality of light emitters disposed alongside the detector to emit light with a first luminous intensity. The processor, in response to the detector detecting that the object is in contact with or in proximity to the detection surface, causes, among the plurality of light emitters, a light emitter corresponding to a contact or proximity point detected by the detector at which the object is in contact with or in proximity to the detection surface, to emit light with a second luminous intensity that is higher than the first luminous intensity.