Temperature measurement using an OLED device

Details Temperature measurement using an OLED device Temperature measurement using an OLED device

2007-01-02

2007-01-02

Vu, David (Department: 2821)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S082000, C315S169300

Reexamination Certificate

active

11034032

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).

REFERENCES:
patent: 5775811 (1998-07-01), Hiraoka et al.
patent: 6774883 (2004-08-01), Mühlemann
patent: 7042427 (2006-05-01), Inukai
patent: 7079091 (2006-07-01), Kondakov et al.
patent: 2004/0150590 (2004-08-01), Cok et al.

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