ACTIVE MATRIX SUBSTRATE AND METHOD FOR DRIVING CURRENT CONTROLLED TYPE LIGHT EMITTING ELEMENT USING THE SAME

Title:

ACTIVE MATRIX SUBSTRATE AND METHOD FOR DRIVING CURRENT CONTROLLED TYPE LIGHT EMITTING ELEMENT USING THE SAME

Document Type and Number:

Japanese Patent JP2003150108

Kind Code:

A

Abstract:

To provide the driving circuit of an active matrix type current- controlled type light emitting element which is capable of suppressing a display unevenness of luminance of light emitting elements caused by the dispersion in the threshold voltages of transistors or the like and in which circuits compen sating offset voltages are incorporated and with which a satisfactory picture characteristic can be obtained with a relatively small number of transistors.

In this driving circuit, the driving method of an EL (electroluminescent) panel in which a voltage to be applied to a data line is made to be a binary voltage and fluctuation of the characteristic of the EL element can be suppressed by applying a reverse bias voltage to the elements for a fixed period is provided.

Inventors:

MINAMINO YUTAKA
TANAKA HIRONORI
TSUTSU HIROSHI

Application Number:

JP2001347013A

Publication Date:

May 23, 2003

Filing Date:

November 13, 2001

Export Citation:

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Assignee:

MATSUSHITA ELECTRIC IND CO LTD

International Classes:

H01L51/50; G09F9/30; G09G3/20; G09G3/30; G09G3/32; H01L27/32; H05B33/14; (IPC1-7): G09G3/30; G09F9/30; G09G3/20; G09G3/32; H05B33/14

Domestic Patent References:

JP2001222255A	2001-08-17
JPH113048A	1999-01-06
JPH10312173A	1998-11-24
JPH1173158A	1999-03-16
JP2000164360A	2000-06-16
JP2000036383A	2000-02-02

Attorney, Agent or Firm:

Fumio Iwahashi (2 others)

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