Fingerprint Recognition Unit With Light Emitting Component

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Solution Overview

Problem

Existing fingerprint recognition technologies fail to provide direct feedback to users, resulting in a poor user experience when controlling terminal apparatuses.

Innovation Solution

A device and manufacturing method for fingerprint recognition that includes forming fingerprint recognition units with light emitting components on a substrate, partitioning the substrate to separate these units, and coupling them with control circuits, allowing the light emitting components to indicate recognition results.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If fingerprint recognition units are formed with light emitting components on a substrate and then partitioned, then manufacturing complexity is reduced and position offsets are prevented, but the substrate partitioning process becomes more complex

Engineering Contradiction:
Improvemanufacturing process simplicityVSAvoidsubstrate partitioning complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The substrate is divided into multiple independent preset regions, each containing a fingerprint recognition unit with light emitting components. This segmentation allows each unit to be manufactured and tested independently before final assembly, simplifying the overall manufacturing process while enabling precise positioning without complex partitioning operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The light emitting components are formed directly on the substrate within preset regions before any partitioning occurs. This preliminary formation of functional components in predetermined locations eliminates the need for complex post-manufacturing positioning and assembly operations, reducing both manufacturing complexity and device complexity.

Inventive Principle:
Principle #10Preliminary action

2Ease of manufacture

If light emitting components are integrated directly onto the substrate, then production costs are reduced and position offsets are prevented, but the electrical connection complexity increases

Engineering Contradiction:
Improveproduction cost reductionVSAvoidelectrical connection complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The fingerprint recognition component and light emitting component are merged into a single integrated unit formed on the same substrate. This integration eliminates the need for separate mounting and electrical connection processes for the light emitting component, reducing production costs and simplifying electrical connections while preventing position offsets.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The substrate serves multiple functions: it acts as the base for forming the fingerprint recognition component, the substrate for the light emitting component, and the electrical interconnection medium. This multi-functionality reduces the number of separate components and connection steps, lowering production costs and electrical connection complexity.

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 solution enables direct reflection of control results, improving user experience and simplifying the manufacturing process by integrating light emitting components directly onto the substrate, reducing production costs and preventing position offsets.

Implementation Method 1

at least one light emitting component, where the light emitting component is configured to indicate a fingerprint recognition result

Methodology Applied
Scientific EffectElectroluminescence: Electroluminescence

Data Source

PatentUS10789446B2Device for fingerprint recognition, manufacturing method therefor, and electronic apparatus
Publication Date: 2020.09.29 BEIJING BOE OPTOELECTRONCIS TECH CO LTD
  • US10789446B2 patent drawing
  • US10789446B2 patent drawing
  • US10789446B2 patent drawing

AI summary

A device for fingerprint recognition, a manufacturing method therefor, and an electronic apparatus are provided. The method includes: forming fingerprint recognition units in multiple independent preset regions of a substrate, where the fingerprint recognition units each include a fingerprint recognition component and a light emitting component; partitioning the substrate along boundaries of the preset regions to separate the fingerprint recognition units from each other; and coupling the fingerprint recognition units after partition with corresponding control circuits, to make the fingerprint recognition component and the light emitting component of each fingerprint recognition unit be electrically connected to a corresponding control circuit coupled with the each fingerprint recognition unit. The fingerprint recognition unit and the control circuit coupled with each other serve together as the device for fingerprint recognition. The method is for manufacturing the device for fingerprint recognition.