Transparent Panel Biometric Authentication for Compact Devices

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Small electronic devices face challenges in implementing multiple functions due to limited surface area, and fingerprint authentication can be difficult to perform effectively as it requires precise finger positioning.

Innovation Solution

An electronic device with a transparent panel section containing transparent light-emitting elements and an imaging section under a partial region, allowing for imaging of objects through the panel, which also functions as a display and touch sensor, enabling biometric authentication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fingerprint sensor device is implemented in a small electronic device, then biometric authentication function is added, but the device surface area increases and finger positioning becomes difficult

Engineering Contradiction:
Improvebiometric authentication functionVSAvoiddevice surface area
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The imaging section is merged with the display panel structure, allowing the fingerprint sensor to be integrated within the transparent panel area. This combining approach enables biometric authentication without significantly increasing the overall device surface area, as the imaging functionality shares the same physical space as the display region.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The transparent panel serves multiple functions: it acts as both the display surface and the imaging window for the fingerprint sensor. By making the panel transparent in specific regions, the same structural element fulfills both display and biometric authentication purposes, eliminating the need for separate dedicated sensor areas.

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

2Adaptability or versatility

If multiple functions are implemented in a small electronic device, then functionality is enhanced, but the device becomes more complex and harder to manage

Engineering Contradiction:
Improvemultiple functionsVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Multiple functions including display, touch sensing, and imaging are merged into a single integrated panel structure. The transparent panel simultaneously serves as the display surface, touch sensor interface, and imaging window, reducing the number of separate components and simplifying the overall device architecture despite providing multiple functionalities.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The transparent panel is designed as a multi-functional universal component that performs display, touch sensing, and imaging functions. This universal design approach allows a single structural element to fulfill multiple roles, thereby enhancing functionality while actually reducing device complexity by eliminating the need for separate dedicated components for each function.

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

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

The device achieves a compact design with multiple functions, including display, touch sensing, and fingerprint authentication, by using a transparent panel for imaging and biometric authentication, enhancing usability and functionality in a small form factor.

Implementation Method 1

a transparent panel section in which a plurality of transparent light-emitting elements is disposed

Methodology Applied
Scientific EffectLight emission: Light Emitting Diode

Implementation Method 2

images, via the transparent panel section, an object which is in contact with or in proximity to the partial region of the transparent panel section

Methodology Applied
Scientific EffectLight transmission and reflection: Reflection

Data Source

PatentUS11443544B2Electronic device
Publication Date: 2022.09.13 SONY GROUP CORP
  • US11443544B2 patent drawing
  • US11443544B2 patent drawing
  • US11443544B2 patent drawing

AI summary

An electronic device including: a transparent panel section in which a plurality of transparent light-emitting elements is disposed; and an imaging section that is disposed under a partial region of the transparent panel section, and images, via the transparent panel section, an object which is in contact with or in proximity to the partial region of the transparent panel section.