Apparatus and method of testing an organic light emitting diode array
US6433485B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2001 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Apr 5, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method of testing an organic light emitting diode array are disclosed. A current meter and voltage source are serially connected between a common line and power supply line shared by any pixel unit. Specific logic values are sequentially written to the pixel units via signal lines and the current readings corresponding the pixel units are taken by the current meter. Whether the pixel units are defective can be determined according to the current readings. The defective type of a pixel units can be determined according to the current reading corresponding to the defective pixel unit and the current readings corresponding the other perfect pixel units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.