Touch Control Test Apparatus Using Telescopic Mechanism for Coordinate Error

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Solution Overview

Problem

Current touch control tests for touch screens lack accuracy in evaluating the tap touch control response, which is crucial for assessing the quality of touch screens.

Innovation Solution

A touch control test device and method utilizing a telescopic mechanism to drive a touch control component to tap a touch screen, with an acquisition unit to record actual detection coordinates and a calculation unit to determine the touch control coordinate error between target and actual coordinates, ensuring precise and objective testing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a telescopic mechanism is used to drive the touch control component to tap the touch screen, then the measurement precision of tap touch control response is improved, but the device complexity increases

Engineering Contradiction:
Improvetap touch control response accuracyVSAvoidtesting device structure
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The testing device is divided into independent functional modules: a telescopic mechanism for positioning, a touch control component for interaction, an acquisition unit for coordinate detection, and a calculation unit for error computation. Each module performs a specific function, allowing the system to achieve high measurement precision while maintaining manageable complexity through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The telescopic mechanism acts as an intermediary between the testing system and the touch screen, providing precise positional control. The acquisition unit serves as an intermediary to capture actual detection coordinates, and the calculation unit mediates between target and actual coordinates to compute errors. These intermediary components enable accurate measurement without requiring direct complex integration.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If multiple actual detection coordinate points are acquired and maximum distance error is calculated, then the reliability of touch screen evaluation is improved, but the loss of time increases

Engineering Contradiction:
Improvetouch screen evaluation accuracyVSAvoidtesting duration
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system pre-establishes multiple target coordinate points on the touch screen before testing begins. During testing, the touch control component taps these predetermined points, and the acquisition unit immediately captures actual detection coordinates. This preliminary setup allows for efficient batch processing of multiple test points, improving reliability without excessive time loss.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The calculation unit automatically computes the maximum distance error between target and actual coordinates using computational algorithms, replacing manual measurement and calculation processes. This automation significantly reduces the time required to process multiple coordinate points while maintaining high evaluation reliability through precise mathematical computation.

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

Data Source

PatentUS11698407B2Touch-control test apparatus and touch-control test method
Publication Date: 2023.07.11 BOE TECHNOLOGY GROUP CO LTD
  • US11698407B2 patent drawing
  • US11698407B2 patent drawing
  • US11698407B2 patent drawing

AI summary

A touch control test device and a touch control test method are provided, and the touch control test device includes: a telescopic mechanism with an adjustable length; a touch control component connected to the telescopic mechanism so that the telescopic mechanism is configured to drive the touch control component to tap the touch screen; an acquisition unit configured to acquire an actual detection coordinate point where the touch control component taps the touch screen; a calculation unit configured to calculate a touch control coordinate error between a target coordinate point corresponding to the actual detection coordinate point where the touch control component taps the touch screen and the actual detection coordinate point. The touch test device can achieve a tap touch control test of the touch screen.