Display device and manufacturing method thereof

Details Display device and manufacturing method thereof Display device and manufacturing method thereof

2004-12-14

2008-12-02

Dharia, Prabodh (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S083000

Reexamination Certificate

active

07460095

ABSTRACT:
A display device capable of applying reverse driving voltage for a light emitting element to a light emitting element every certain period for prolonging light emitting element's life and burning out a shorted portion. Besides a path for supplying forward current to the light emitting element, a path for supplying reverse current is provided. A driving transistor is provided in the former path while a transistor (AC transistor) is provided in the latter path, thereby a switching between the two paths is controlled. The AC transistor has a rate L/W of a channel length L to a channel width W smaller than that of the driving transistor. Accordingly, current flowing into the light emitting element can flow into the AC transistor in the case of reverse driving voltage being applied to the light emitting element.

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