Multi-Directional Burn-In Testing for Display Panels

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Solution Overview

Problem

Current burn-in testing apparatuses for display-panel modules only allow testing along a single direction, failing to account for the various usage positions and directions of electronic devices, which may not ensure stable operation performance across different orientations.

Innovation Solution

A testing apparatus featuring a direction guiding unit and clamping unit that allows display-panel modules to be securely disposed along multiple testing directions, including vertical, horizontal, and planar orientations, using a thermal control chamber, carrier frame, and signal transmission module to conduct burn-in tests effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If display-panel modules are tested along a single direction only, then the testing apparatus structure is simple, but the reliability of operation performance assessment is insufficient

Engineering Contradiction:
Improvereliability of operation performance assessmentVSAvoidtesting apparatus structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The testing apparatus employs a rotatable carrier frame that can dynamically change the orientation of display-panel modules from single-direction to multi-directional (vertical, horizontal, inclined) positioning. This dynamic adjustment capability allows the system to test modules in various orientations without requiring multiple separate testing devices, thereby improving reliability while controlling complexity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The carrier frame is designed as a universal platform that can accommodate and position multiple display-panel modules in different orientations simultaneously. This multi-functional design allows a single testing apparatus to perform comprehensive multi-directional testing, replacing what would otherwise require multiple specialized testing setups.

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

2Adaptability or versatility

If display-panel modules are disposed along multiple testing directions, then the operation performance assessment becomes comprehensive, but the device complexity increases

Engineering Contradiction:
Improvetesting direction adaptabilityVSAvoidtesting apparatus structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The testing apparatus divides the testing function into modular components: a rotatable carrier frame for orientation control, individual clamping units for each module, and independent positioning mechanisms. This segmentation allows the system to achieve multi-directional adaptability through coordinated simple components rather than a single complex mechanism.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The carrier frame introduces rotational movement as an additional dimension of freedom, transforming the testing capability from fixed single-direction to multi-directional by adding the rotational degree of freedom. This dimensional change enables comprehensive testing without proportionally increasing structural complexity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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

Enables comprehensive burn-in testing of display-panel modules across multiple directions, ensuring stable operation performance regardless of device orientation, by allowing adjustable placement of modules during testing, thereby enhancing the reliability of operation performance assessment.

Implementation Method 1

The thermal control chamber includes a test room, wherein the temperature of the test room is controlled within a testing temperature range

Methodology Applied
Scientific EffectThermal control: Heating

Data Source

PatentUS8779788B2Burn-in testing apparatus
Publication Date: 2014.07.15 CHROMA ATE INC
  • US8779788B2 patent drawing
  • US8779788B2 patent drawing
  • US8779788B2 patent drawing

AI summary

A testing apparatus includes a thermal control chamber including a test room, which temperature is controlled within a testing temperature range; a carrier frame including a direction guiding unit installed securely within the test room and formed with one guiding groove and a carrier rod extending through the guiding groove in the direction guiding unit; and a clamping unit mounted on the carrier rod for clamping a display-panel module securely, wherein, movement of the carrier rod transversely within the guiding groove relative to the direction guiding unit results in disposing the display-panel module to extend along one of several testing directions for undergoing a burn-in test.