Detecting Circuit for Electronic Paper Feedback Voltage

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The manual detection of feedback voltage in pixel circuits of electronic paper displays is time-consuming and prone to misreading, relying on operators using multitesters to measure and record voltage values.

Innovation Solution

A detecting circuit comprising a converting unit for analog-to-digital conversion, a control chip for processing digital signals, and a display unit to automatically detect and display the feedback voltage, eliminating the need for manual measurement and reducing errors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual detection using multitester is used, then the feedback voltage can be detected, but the detection process is time-consuming and prone to misreading

Engineering Contradiction:
Improvedetection accuracyVSAvoiddetection time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces the manual mechanical operation of using a multitester with an automated electrical detection system. The detecting circuit automatically measures the feedback voltage through electrical connections to the pixel circuit, eliminating the need for manual probe placement and reading, thereby reducing both detection time and human error.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The detecting circuit is designed to automatically perform the detection function without requiring operator intervention. The system self-activates to measure the feedback voltage, processes the signal internally, and generates detection results autonomously, making the detection process independent of manual operation while improving accuracy and speed.

Inventive Principle:
Principle #25Self-service

2Productivity

If manual detection is used, then the feedback voltage can be measured, but the process requires operator intervention and is inefficient

Engineering Contradiction:
Improvedetection efficiencyVSAvoidoperation simplicity
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent replaces manual operational procedures with an automated electronic detection system. The detecting circuit automatically connects to the pixel circuit, performs voltage measurement, and outputs results without requiring operators to manually operate multitesters, significantly improving detection efficiency while simplifying the operational process.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The detecting circuit performs the entire detection process autonomously without requiring operator intervention. The system automatically activates the pixel circuit, measures the feedback voltage, processes the signal, and displays results, making the operation extremely simple while dramatically improving productivity.

Inventive Principle:
Principle #25Self-service

3Loss of time

If automated detecting circuit is implemented, then detection speed and accuracy improve, but device complexity increases

Engineering Contradiction:
Improvedetection timeVSAvoidcircuit complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The patent merges multiple functions into a single integrated detecting circuit. The circuit combines signal generation, voltage measurement, signal processing, and result output in one unified device, reducing the overall system complexity compared to using separate manual instruments while achieving fast and accurate automated detection.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The detecting circuit is designed with multi-functionality to handle various detection tasks within a single device. It can automatically activate pixel circuits, measure different voltage parameters, process signals, and output results, replacing multiple separate tools and operations, thereby reducing complexity while improving detection capabilities.

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 rapid, accurate detection and display of feedback voltage, preventing misreading and time-consuming manual processes, thereby improving efficiency in electronic paper display manufacturing.

Implementation Method 1

The converting unit electrically connected to the pixel circuit performs an analog-to-digital operation to convert the feedback voltage into a digital signal

Methodology Applied
Scientific EffectAnalog-to-digital conversion:

Data Source

PatentUS8884605B2Detecting circuit
Publication Date: 2014.11.11 E INK HLDG INC
  • US8884605B2 patent drawing
  • US8884605B2 patent drawing
  • US8884605B2 patent drawing

AI summary

A detecting circuit for detecting a feedback voltage of a pixel circuit includes a converting unit, a control chip and a display unit. The converting unit electrically connected to the pixel circuit performs an analog-to-digital operation to convert the feedback voltage into a digital signal. The control chip electrically connected to the converting unit controls the converting unit to perform the analog-to-digital operation and processes the digital signal to generate a display information. The display unit electrically connected to the control chip displays a voltage value of the feedback voltage according to the display information.