Hologram Touch Display Device for Contactless Gesture Control

Solution Overview

Problem

There is a need for a method to operate devices such as elevators and kiosks without direct physical contact, particularly to prevent infection and damage from frequent button usage.

Innovation Solution

A hologram touch display device and method that projects a keypad hologram in air, allowing users to interact with it using gestures detected by a touch recognition system, which then controls external devices connected over a network without physical contact.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If physical buttons are used for device operation, then ease of operation is improved, but risk of infection and button damage increases

Engineering Contradiction:

Improveease of operationVSAvoidinfection risk

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent creates a holographic copy of the physical keypad that projects virtual buttons into space. Users can interact with this holographic copy through gesture recognition, obtaining the operational functionality of physical buttons without actual physical contact, thereby eliminating infection risk while maintaining ease of use

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The patent replaces the mechanical button-pressing system with an optical gesture recognition system. The mechanical contact between finger and button is substituted by optical fields (light emission and detection) that detect hand gestures, eliminating the harmful physical contact while preserving the operational interface

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If physical buttons are used for device operation, then ease of operation is improved, but button durability decreases

Engineering Contradiction:

Improveease of operationVSAvoidbutton durability

Core Design Contradiction:

Ease of operationVSDuration of action of stationary object

Solution Approach 1:

The patent creates a holographic copy of the physical keypad that projects virtual buttons into space. Users can interact with this holographic copy through gesture recognition, obtaining the operational functionality of physical buttons without actual physical contact, thereby eliminating infection risk while maintaining ease of use

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The patent replaces the mechanical button-pressing system with an optical gesture recognition system. The mechanical contact between finger and button is substituted by optical fields (light emission and detection) that detect hand gestures, eliminating the harmful physical contact while preserving the operational interface

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Object-affected harmful factors

If contactless gesture recognition is implemented, then infection risk is reduced, but device complexity increases

Engineering Contradiction:

Improveinfection riskVSAvoiddevice complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent employs a light-emitting module and light-receiving module that can serve multiple functions: projecting the holographic keypad interface and simultaneously detecting user gestures for operation. This multi-functionality reduces the need for separate dedicated components, thereby mitigating the increase in device complexity while enabling contactless operation

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines the hologram projection function and gesture detection function into an integrated system. The light-emitting module projects both the holographic interface and the detection beams, while the light-receiving module detects both the hologram reflection and gesture signals, merging multiple functions into unified components to reduce overall system complexity

Inventive Principle:

Principle #5Merging (Combining)

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 solution prevents infection and damage by allowing contactless operation of devices, providing a visually recognizable interface for easy use while maintaining user privacy.

Implementation Method 1

a light-emitting module configured to emit incident light perpendicular to the keypad hologram

Methodology Applied

Scientific EffectLight emission: Light

Implementation Method 2

a light-receiving module configured to receive reflected light reflecting off the keypad hologram by the touch gesture of the user

Methodology Applied

Scientific EffectLight reflection: Reflection

Implementation Method 3

an operation module configured to detect the touch position of the user on the basis of the incident light and the reflected light, and compute the keypad touch information

Methodology Applied

Scientific EffectOptical detection: Photoelectric Effect

Data Source

PatentUS11842015B2Hologram touch display device and hologram touch gesture control method

Publication Date: 2023.12.12 MARKETON INC

AI summary

Provided are a hologram touch display device and a hologram touch gesture control method. A hologram touch display device according to an embodiment of the present disclosure includes: a space projector configured to project a keypad hologram having a plurality of key buttons in air; a touch recognition part configured to emit light to the keypad hologram, receive the light reflected by a touch gesture of a user at the keypad hologram to detect a touch position of the user with respect to the keypad hologram, and determine keypad touch information of the user according to the touch position; and a touch controller configured to perform control such that an external device connected over a network operates on the basis of the keypad touch information.