IP Library Granted Patent US 7,183,719
Granted Patent B2
US 7,183,719 · App. 10/746,113 · Granted Feb 27, 2007

Method for driving organic light emitting display panel

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Quick Facts
Patent No.
US 7,183,719
App. No.
10/746,113
Granted
Feb 27, 2007
Kind
B2
Abstract

A method for driving an organic light emitting display panel including a plurality of organic light emitting diode which are coupled to a plurality of segment lines and a plurality of common lines in a matrix structure comprises the steps of: (A) precharging a first organic light emitting diode connected to a first common line and a second organic light emitting diode connected to a second common line, wherein the first common line neighbors on the second common line; (B) supplying a first driving current to the first organic light emitting diode; (C) supplying a second driving current to the second organic light emitting diode; and (D) discharging electrified charge of the first and second organic light emitting diodes.

Claims (18)

1. A method for driving an organic light emitting display panel including a plurality of organic light emitting diode which are coupled to a plurality of segment lines and a plurality of common lines in a matrix structure, comprising the steps of:

precharging both a first organic light emitting diode connected to a first common line and a second organic light emitting diode connected to a second common line at once, wherein the first common line neighbors on the second common line;

supplying a first driving current to the first organic light emitting diode;

supplying a second driving current to the second organic light emitting diode without additionally precharging the second organic light emitting diode before supplying the second driving current; and

discharging electrified charge of both the first and second organic light emitting diodes.

2. The method as recited in claim 1 , wherein the supplying a first driving current step includes the steps of:

outputting a first control signal for driving the first organic light emitting diode; and

supplying the first driving current to the first organic light emitting diode in response to the first control signal.

3. The method as recited in claim 2 , wherein the supplying a second driving current step includes the steps of:

outputting a second control signal for driving the second organic light emitting diode; and

supplying the second driving current to the second organic light emitting diode in response to the second control signal.

4. The method as recited in claim 3 , wherein the first control signal is inactivated at the simultaneous timing of activating the second control signal.

5. The method as recited in claim 4 , wherein the first and second driving current is supplied by an alternative method selected one of group consisting of a pulse width modulation (PWM) and a pulse amplitude modulation (PAM).

6. A method for driving an organic light emitting display panel including a plurality of organic light emitting diode which are coupled to a plurality of segment lines and a plurality of common lines in a matrix structure, comprising the steps of:

simultaneously precharging at least two organic light emitting diodes connected to at least one common lines;

sequentially supplying a driving current to each of the two organic light emitting diodes connected to each common line without additionally precharging either organic light emitting diode before supplying a next driving current; and

simultaneously discharging electrified charge of at least two organic light emitting diodes connected to at least one common lines.

7. The method as recited in claim 6 , wherein the driving current is supplied by an alternative method selected one of group consisting of a pulse width modulation (PWM) and a pulse amplitude modulation (PAM).

Assignments (1)
CORRECTIVE ASSIGNMENT TO CORRECT THE RECEIVING PARTY ADDRESS PREVIOUSLY RECORDED AT REEL: 024563 FRAME: 0807. ASSIGNOR(S) HEREBY CONFIRMS THE RELEASE BY SECURED PARTY. Recorded Nov 25, 2014
From: US BANK NATIONAL ASSOCIATION
To: MAGNACHIP SEMICONDUCTOR LTD.
Reel/Frame 034469/0001 →