Spectrometer-Scanning OLED Panel Lifetime Testing System

This system is mainly used for lifetime decay testing of multiple OLED panels for mobile phones or tablets. Unlike OLED module platforms, it is equipped with additional panel fixtures, where each panel fixture can crimp 5 panels.

System Composition

1. 3-Axis Automatic Measurement Platform
2. Spectroradiometer
3. Visual Positioning System
4. Multi-Panel Signal Generator
5. Panel Fixture
6. Temperature and Humidity Meter (Optional)
7. High-Temperature Chamber (Optional)
8. OLED Lifetime Testing Software
9. Industrial Computer
10. Alignment Machine

System Features

1. The equipment adopts independent test channels and uses a spectrometer for optical lifetime testing of OLED cells. Spectrometer scanning testing can obtain data such as luminance, chromaticity, color temperature, and spectrum. Meanwhile, the XY-axis scanning measurement method supports lifetime decay and uniformity testing at multiple different positions on the panel surface.

2. The industrial visual alignment camera automatically scans the placement positions of OLED panels in all stations before each measurement, identifies the size and center coordinates of the OLED light-emitting area, converts them into central measurement coordinates, and saves them. When switching between OLED products of different sizes, there is no need for manual reconfiguration of each OLED’s coordinates.

3. Fstar has pioneered the application of porous ceramic adsorption for fixing flexible OLED panels and made numerous design improvements to ensure flexible panels are adsorbed flat without causing pixel abnormalities.

4. To meet ambient temperature control requirements, Fushida has developed a compact high-temperature chamber (with an invention patent) that provides uniform ambient temperature control for panels within the limited platform space. Temperature control range: room temperature—100℃. One chamber can test 5 cells simultaneously.

5. The cell fixture adopts a 1-to-5 configuration, where a single fixture can crimp and test 5 cells. The indenter module is easy to disassemble and replace to adapt to different products.

6. Automatic panel alignment machine: Fushida-developed automatic panel alignment machine enables each panel to automatically complete alignment under machine vision.

Measurement Items

1. Luminance and chromaticity (x, y) decay ratios over time under white/red/green/blue/custom images, with curves plotted.
2. Voltage/current variation data over time, with curves plotted.

Software

1. Control of signal generator test image output: The software can control the graphic signal generator to switch test patterns and control the test image output of the signal generator. Each signal generator can control the signals and power supply of 5 OLEDs.

2. Lifetime test interval setting: The lifetime testing process can be divided into three stages, with each stage allowing independent setting of luminance measurement intervals.

3. Real-time chart display: It can display the luminance decay curves over time for each OLED panel under different images (white/red/green/blue).

4. Real-time data saving and recovery: Data is saved in real time during testing. Even if the software exits unexpectedly, the original measurement can be restored after restarting the software.