Organic light emitting display and driving method thereof

Details Organic light emitting display and driving method thereof Organic light emitting display and driving method thereof

2011-08-16

2011-08-16

Shalwala, Bipin (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S080000, C345S076000, C315S169300

Reexamination Certificate

active

07999771

ABSTRACT:
An organic light emitting display includes column lines for receiving a drive current, each column line belonging to one of groups. Row lines are for receiving a scan signal. Organic light emitting diodes of pixels are at crossings of the row and column lines. A data driver includes a common current source and drive switching elements. The common current source is for applying the drive current to the column lines in one group. The drive switching elements are connected to the common current source and are for applying the drive current to the column lines in said one group within a drive period in which the scan signal is applied. Charge switches connected to the column lines are turned-on before the drive current is applied to the column lines, and turned-off during the drive period. A voltage retaining circuit coupled with the charge switches is for preliminarily charging the pixels.

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