Touchscreen Window Layout for Adaptive Mobile Terminal Key Marking

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Solution Overview

Problem

Conventional mobile terminals with input devices, such as keyboards, have fixed key markings that do not adapt to different modes, making it difficult to display input content effectively and can degrade the external appearance with multiple key markings.

Innovation Solution

A mobile terminal design featuring a transmissive integrated window covering both display modules, with a touch-sensing unit and a controller that outputs customizable mark sets for different modes, allowing simultaneous execution of tasks and enabling touch input operations across a continuous surface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a keyboard with fixed key markings is used, then the input device structure is simple, but the input content cannot be adapted to different modes and the external appearance is degraded

Engineering Contradiction:
Improveadaptability of input content to different modesVSAvoidcomplexity of input device structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent uses a transmissive display module that displays virtual key markings on the window, creating a visual copy of the keyboard interface without physical keys. This allows the input content to be adapted to different modes by changing the displayed markings, while maintaining a simple physical structure with only one window.

Inventive Principle:
Principle #26Copying

2Adaptability or versatility

If multiple mark sets are displayed on a single keypad, then adaptability to different modes is improved, but the external appearance is degraded

Engineering Contradiction:
Improvedisplay of multiple mark sets for different modesVSAvoidexternal appearance of the device
Core Design Contradiction:
Adaptability or versatilityVSShape

Solution Approach 1:

The patent uses a transmissive display module that can change the visual markings displayed on the window according to different modes. Instead of having multiple physical mark sets that would clutter the appearance, the system dynamically displays relevant markings by controlling the transmissive display, thus maintaining a clean external appearance while providing adaptability.

Inventive Principle:
Principle #32Color changes

3Shape

If a transmissive window covering both display modules is used, then the external appearance is simplified, but the touch sensing complexity increases

Engineering Contradiction:
Improvesimplicity of external appearance with single windowVSAvoidcomplexity of touch sensing unit
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The patent merges the display function and touch input function into a single integrated window structure. The transmissive display module is positioned behind the window, and the touch sensing unit is integrated within the same structure, allowing both functions to be combined in one component rather than requiring separate physical keyboards and displays.

Inventive Principle:
Principle #5Merging (Combining)

4Device complexity

If the touch sensing unit is integrated between the window and second display module, then the structural integration is improved, but the manufacturing precision requirements increase

Engineering Contradiction:
Improveintegration level of componentsVSAvoidprecision required for assembling touch sensing unit
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The patent employs a nested structure where the transmissive display module is positioned behind the window, the touch sensing unit is integrated within the same structural layer, and the second display module is positioned behind the touch sensing unit. This nested arrangement allows for systematic assembly and reduces the precision requirements compared to attempting to integrate all components in a single planar layer.

Inventive Principle:
Principle #7Nested doll (Nesting)

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

This design enhances user interaction by allowing adaptive key markings and simultaneous task execution, improving usability and maintaining a clean external appearance by using a single window for both display and input modules.

Implementation Method 1

a touch sensing unit for sensing a touch applied to the integrated window and generating an signal according to the sensed touch

Methodology Applied
Scientific EffectTouch sensing: Capacitance

Data Source

PatentUS8478351B2Mobile terminal having touch input device
Publication Date: 2013.07.02 LG ELECTRONICS INC
  • US8478351B2 patent drawing
  • US8478351B2 patent drawing
  • US8478351B2 patent drawing

AI summary

A mobile terminal having an input device that performs an input operation in a touch manner is provided. The mobile terminal includes a first display module, a second display module located adjacent to the first display module, an integrated window located an outer portion of the first and second display modules, and a touch sensing unit located between the window and the second display module for sensing a touch applied to the window and applying an input signal. Marks for guiding input content can be varied and high capacity and high-density multimedia or communication information can be easily and quickly accessed or executed.