Self light emitting display module, electronic equipment...

Details Self light emitting display module, electronic equipment... Self light emitting display module, electronic equipment...

2007-01-02

2007-01-02

Vo, Tuyet (Department: 2821)

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

C345S076000

Reexamination Certificate

active

11085186

ABSTRACT:
In a detection mode, a reverse bias voltage VM is applied to any one of scan lines K1–Km arranged in a light emitting display panel1. The electrical potentials generated at respective data lines A1–An of this time are supplied to potential determination means J1–Jn. In the potential determination means J1–Jn, the electrical potentials generated at the respective data lines A1–An are supplied to switching elements Q31–Q3nvia transfer switches Q11–Q1n. When the electrical potentials are the threshold voltages of the switching elements Q31–Q3nor greater, the outputs of comparators CP1–CPn are inverted, and the states of this time are latched in latch circuits LC1–LCn to be stored in a data register11. By data stored in the data register11, it is determined whether or not a defect has occurred in pixels of the display panel, and the location thereof is also determined.

REFERENCES:
patent: 6243069 (2001-06-01), Ogawa et al.
patent: 6545653 (2003-04-01), Takahara et al.
patent: 6903716 (2005-06-01), Kawabe et al.
patent: 7088325 (2006-08-01), Ishii
patent: 3437152 (2003-06-01), None

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