Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
COMMON ANODE PASSIVE MATRIX TYPE ORGANIC LIGHT EMITTING DIODE (OLED) DISPLAY, DRIVING CIRCUIT THEREFOR, METHOD FOR PRECHARGING SAME ORGANIC LIGHT EMITTING DIODE, AND ARRANGEMENT
Document Type and Number:
Japanese Patent JP2004341516
Kind Code:
A
Abstract:

To provide a precharging circuit which is suitably used for a large-sized screen OLED display arranged with common anode constitution.

Disclosed is a precharging circuit incorporated in a driving circuit of the common anode passive matrix large-sized screen OLED display device to conquer a capacitance characteristic COLED characteristic of an OLED element. A 1st precharging circuit includes a MOSFET element incorporated in an ordinary driving circuit to apply a precharging voltage to the cathode of a given OLED element right before a desired "ON" time, thereby rapidly conquering the COLED. A 2nd precharging circuit includes a method of grounding the cathode of a given OLED element while connecting the anode to a positive voltage right before a desired ON time in an ordinary driving circuit, thereby rapidly conquering COLED.


Inventors:
TANGHE GINO
THIELEMANS ROBBIE
Application Number:
JP2004128524A
Publication Date:
December 02, 2004
Filing Date:
April 23, 2004
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
BARCO NV
International Classes:
G09G3/20; G09G3/30; H05B33/14; H05B33/26; H01L51/50; (IPC1-7): G09G3/30; G09G3/20; H05B33/14; H05B33/26
Domestic Patent References:
JPH11231834A1999-08-27
JP2001109433A2001-04-20
JP2003043997A2003-02-14
Foreign References:
US6486607B12002-11-26
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai



 
Previous Patent: PORTABLE DISPLAY DEVICE AND METHOD FOR FOR PERSONAL ELECTRONICS SYSTEM

Next Patent: PHOTOSENSITIVE RESIN COMPOSITION FOR FORMING IMAGE