Temperature measurement using an OLED device
US7158106B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2005 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | May 7, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An OLED device comprising: a) a substrate; b) one or more OLED element(s) formed on the substrate and having a common electrical connection for passing current through the OLED element(s); c) one or more transistor circuit(s) for controlling current passing through the OLED element(s); and d) a controller for measuring a current passing through the common electrical connection when the OLED element(s) and/or transistor circuit(s) are at an unknown temperature, for controlling the transistor circuit(s), and for comparing the current measured to an established current response determined under known OLED element(s) and/or transistor circuit(s) temperature conditions to determine the temperature of the OLED element(s) and/or transistor circuit(s).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.