Display device, driving method of the same and electronic...

Details Display device, driving method of the same and electronic... Display device, driving method of the same and electronic...

2011-04-05

2011-04-05

Liang, Regina (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S204000

Reexamination Certificate

active

07920120

ABSTRACT:
A pixel circuit of a display device of the present invention has a drive transistor which serves also as a transistor adapted to control the emission and non-emission periods of an organic EL element or other elements. A final stage buffer in an output circuit of a write scan circuit (WS) has its power supply separated from the power supply of circuit portions of a previous stage. In a first embodiment, a scan signal WS from the write scan circuit is activated instantaneously. In a second embodiment, the trailing edge of the scan signal WS falls slowly. This allows for writing of an input signal voltage in a stable manner.

REFERENCES:
patent: 6392627 (2002-05-01), Maekawa
patent: 2006/0066531 (2006-03-01), Park et al.
patent: 2006-133542 (2006-05-01), None

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