Sensor-Integrated Display Device 3D Touch Recognition

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Solution Overview

Problem

Conventional portable information devices with integrated touch-sensitive display panels are limited in data processing capabilities, primarily handling two-dimensional coordinate data, which restricts the amount of information acquired and hinders the expansion of application functions.

Innovation Solution

An electronic device with a sensor-integrated display device that generates and outputs three-dimensional information, allowing for the generation of three-dimensional image data at multiple sensing points, enabling the recognition of operation content and control of applications based on this data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If a conventional touch-sensitive display panel is used, then the device structure remains simple and manufacturing is easy, but the data processing capability is limited to two-dimensional coordinate data

Engineering Contradiction:
Improveinformation acquisitionVSAvoiddevice complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent transitions from two-dimensional touch coordinate detection to three-dimensional sensing by adding a vertical dimension. The sensor-integrated display device detects touch position in the vertical direction (Z-axis) in addition to the horizontal and vertical plane coordinates, enabling acquisition of distance information and generating three-dimensional touch data that encompasses both spatial position and depth information

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent merges the display function and sensor detection function into a single integrated structure. The sensor-integrated display device combines the display panel with touch sensors, allowing simultaneous display output and multi-dimensional input detection without requiring separate components, thus increasing information acquisition capability while controlling device complexity

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If only two-dimensional coordinate data is processed, then the device complexity remains low, but the application function expansion is hindered

Engineering Contradiction:
Improveapplication functionVSAvoiddata processing capability
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements multi-functionality by enabling the sensor-integrated display device to perform both traditional two-dimensional touch operations and advanced three-dimensional applications. The system can handle conventional touch gestures while simultaneously supporting new applications such as biometric authentication, three-dimensional image generation, and intuitive operation control that leverage the additional vertical dimension data

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

Solution Approach 2:

By adding the vertical dimension to touch detection, the patent enables expansion of application functions beyond traditional two-dimensional interactions. The three-dimensional information allows for new application categories including depth-based gestures, proximity sensing applications, and biometric authentication that were not possible with planar touch alone

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 acquisition of additional information such as distance and position, expanding application functions and providing enhanced data processing capabilities, including biometric authentication and intuitive operation control.

Implementation Method 1

When a user touches the display surface, the operation input panel detects the touched position as, for example, a change in capacitance

Methodology Applied
Scientific EffectCapacitance: Capacitance

Data Source

PatentUS9740395B2Electronic apparatus with sensor-integrated display device and method of controlling the same
Publication Date: 2017.08.22 JAPAN DISPLAY INC
  • US9740395B2 patent drawing
  • US9740395B2 patent drawing
  • US9740395B2 patent drawing

AI summary

According to one embodiment, an electronic apparatus includes a sensor-integrated display device integrally including a display surface and a sensor surface, a data transfer device, an image data generation module, and a processing module. The data transfer device is configured to generate and output three-dimensional information. The image data generation module is configured to generate three-dimensional image data at a plurality of sensing points on the sensor surface based on the three-dimensional information. The processing module is configured to analyze an operation content of a conductor above the sensor surface based on the image data.