Luminous Transaction Card with Light Guide Module

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Traditional transaction cards lack a mechanism to inform users about the transaction status, making it difficult for consumers to verify if a transaction is in progress, which can lead to unauthorized use of personal information.

Innovation Solution

A transaction card with a luminous display, comprising a card body, an electronic control module, a light emitting module, and a light guide module, where the light emitting module is driven by the electronic control module to guide a light source through the light guide module, creating a visible transaction prompt and aesthetic visual effect.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional contact or non-contact cards are used, then the card can be read by card readers for transactions, but the consumer cannot verify transaction status and personal information may be appropriated

Engineering Contradiction:
Improvetransaction status verificationVSAvoidcard mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs a luminous display that changes color or emits light to indicate transaction status. The display shows different colors (e.g., green for successful transaction, red for failed transaction) to provide visual feedback to the consumer about the transaction state, enabling verification without complex mechanical mechanisms.

Inventive Principle:
Principle #32Color changes

2Reliability

If a luminous display is added to the card, then transaction status can be displayed and aesthetic visual effect is achieved, but the device complexity increases

Engineering Contradiction:
Improvetransaction status displayVSAvoidcard structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The luminous display serves multiple functions: it displays transaction status information, provides aesthetic visual effects, and can indicate card state (e.g., whether the card is active or frozen). By combining these functions into a single display component, the patent reduces the need for separate indicators and maintains relatively simple card structure.

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

3Reliability

If the light emitting module is activated during transaction, then transaction status is informed to user, but energy consumption increases

Engineering Contradiction:
Improvetransaction information feedbackVSAvoidlight emitting energy
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The luminous display operates periodically rather than continuously - it activates only during transaction operations to provide status feedback and remains inactive during non-transaction periods. This periodic operation significantly reduces energy consumption while maintaining effective communication of transaction information to the user.

Inventive Principle:
Principle #19Periodic action

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 card effectively informs users of transaction status, preventing unauthorized use by displaying transaction information and providing an aesthetic visual effect, thus enhancing user security and experience.

Implementation Method 1

the light guide module guides a light source of the light emitting module to the light-transparent frame part of the card body

Methodology Applied
Scientific EffectLight refraction: Refraction

Implementation Method 2

the light guide module guides a light source of the light emitting module to the light-transparent frame part of the card body

Methodology Applied
Scientific EffectTotal internal reflection: Total Internal Reflection

Data Source

PatentUS11755871B2Transaction card with luminous display
Publication Date: 2023.09.12 CHUANG LIEN HAO
  • US11755871B2 patent drawing
  • US11755871B2 patent drawing
  • US11755871B2 patent drawing

AI summary

A transaction card with a luminous display includes a card body, an electronic control module, a light emitting module and a light guide module. The card body is provided with a light-transparent frame part around; the electronic control module is provided in the card body; the light emitting module is provided in the card body and electrically connected to the electronic control module; the light guide module is provided in the card body and corresponds to the light emitting module, the light guide module guides a light source of the light emitting module to the light-transparent frame part of the card body.