Inertial Scroll Control for Touch Panel Flicking and Sliding Gestures

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing electronic devices with touch panels require repeated scroll manipulations to shift objects on the display to a distant position, making the operation cumbersome for users.

Innovation Solution

An electronic device with a touch panel that detects touch input manipulations and performs first and second inertial scrolls based on the type and direction of the manipulation, allowing for high-speed shifting of objects by combining slide and flicking gestures without repeated scroll actions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If existing inertial scroll manipulation is used to shift an object to a distant position on the display screen, then the object can be scrolled, but repeated scroll manipulation or flicking manipulation many times without interruption is required, making the operation cumbersome

Engineering Contradiction:

Improveease of scroll operationVSAvoidtime for repeated scroll manipulation

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The patent applies dynamics by transitioning from static scroll speed to dynamic inertial scroll speed. When a flicking manipulation is detected, the system initiates an inertial scroll where the scroll speed dynamically increases over time rather than maintaining a constant speed, allowing the display to reach distant positions more efficiently without requiring multiple repeated operations

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of scroll speed from a fixed value to a dynamically varying value during inertial scroll. The scroll speed is set to increase over time during the inertial scroll period, enabling faster traversal across the display screen and reducing the time required to reach distant objects compared to traditional constant-speed scrolling

Inventive Principle:

Principle #35Parameter changes

2Productivity

If the display control method waits for temporary completion of the inertial scroll, then the display can be controlled, but the operation becomes slower and less efficient for distant objects

Engineering Contradiction:

Improvespeed of object shiftingVSAvoidwaiting time for inertial scroll completion

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-calculating and pre-positioning the display content during the inertial scroll. Instead of waiting for the inertial scroll to complete before updating the display, the system prepares the next display state in advance, allowing seamless transitions and eliminating waiting time for users to see the updated content

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS9569084B2Electronic device, method of controlling display, and program

Publication Date: 2017.02.14 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

AI summary

An electronic device includes a display section that displays an object; a touch panel that detects a touch input manipulation; a touch determination section that determines a type and a direction of the touch input manipulation performed on the object; and a scroll control unit that performs a first inertial scroll of the object in a direction of flicking manipulation when the touch determination section determines that that flicking manipulation is performed on the object without performing slide manipulation on the object, and a second inertial scroll of the object that is longer in scroll distance and faster in scroll speed than the first inertial scroll when the touch determination section determines that slide manipulation is performed on the object and then the flicking manipulation is performed on the object in a direction opposite to the direction of the slide manipulation.