Dual-Side Touch Control for Mobile Terminals

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Solution Overview

Problem

Existing mobile terminals face challenges in providing users with an intuitive and convenient method to select and execute functions without complex menu navigation, especially with the advent of bendable or curvable display units, and the need for innovative user input methods.

Innovation Solution

A mobile terminal design incorporating a display unit with first and second touch sensors on the front and rear surfaces, respectively, and a controller that outputs screen information and executes functions based on preset touches applied simultaneously to these regions, allowing for intuitive function selection and execution without extensive menu navigation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional menu navigation is used for function selection, then all functions can be accessed systematically, but the operation process becomes complicated and time-consuming

Engineering Contradiction:
Improvefunction selection convenienceVSAvoidmenu navigation time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The patent pre-arranges specific touch patterns (simultaneous touches at predetermined positions) that directly map to functions or applications. This preliminary configuration allows users to execute functions immediately through intuitive gestures without navigating through menu structures, thereby resolving the contradiction between systematic access and operational simplicity.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces a touch pattern recognition system as an intermediary between user input and function execution. Instead of direct menu navigation, the system interprets specific touch patterns (such as simultaneous touches at corners or edges) as commands, providing a more direct and convenient path to function execution while maintaining systematic control.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If multiple touch sensors are added to enable new input methods, then user input capability is enhanced, but device complexity increases

Engineering Contradiction:
Improveuser input capabilityVSAvoidsensor system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent makes the existing touch sensors multi-functional by programming them to recognize various touch patterns (single touch, simultaneous touches, sequential touches) and map them to different functions. This approach enhances input versatility without adding new sensor hardware, thereby avoiding increased device complexity while achieving adaptability improvements.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines the functionality of multiple touch sensors into a unified control system that processes touch patterns collectively. By merging the input capabilities and processing logic, the system achieves enhanced versatility through coordinated operation of existing components rather than through additive complexity of separate systems.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3073362B1Mobile terminal and method of controlling the same
Publication Date: 2019.03.06 LG ELECTRONICS INC
  • EP3073362B1 patent drawingFigure 1A
  • EP3073362B1 patent drawingFigure 1B~1C
  • EP3073362B1 patent drawingFigure 2A~2B

AI summary

The present invention relates to a mobile terminal and a method of controlling the same. A mobile terminal according to the present invention includes a terminal body; a display located on a first side of the terminal body; a first touch sensor located at the display; a second touch sensor located on a second side of the terminal body, the second side being an opposite side of the first side; and a controller configured to cause the display to display screen information relating to a function corresponding to preset touches in response to the preset touches comprising a first touch applied to a first touch region including the first touch sensor and a second touch applied to a second touch region including the second touch sensor.