IP Library Granted Patent US 7,564,068
Granted Patent B2
US 7,564,068 · App. 11/204,157 · Granted Jul 21, 2009

COG-typed organic electroluminescent cell

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Quick Facts
Patent No.
US 7,564,068
App. No.
11/204,157
Granted
Jul 21, 2009
Kind
B2
Abstract

The present invention relates to a COG-typed organic electroluminescent device including dummy data lines formed at different location from data lines. The COG-typed organic electroluminescent cell having a plurality of pixels formed in the luminescent areas which are cross areas of indium tin oxide films (ITO films) and metal line layers includes data line pads, dummy data lines, and a dummy data line connecting section. The data line pads each are connected to one end of the ITO films. The dummy data lines each are connected to the other end of the ITO films. The dummy data line connecting section connects the dummy data lines. In the cell, the dummy lines are formed separately from the pads, and thus the number of pins may be reduced.

Claims (20)

1. A COG-typed organic electroluminescent cell having a plurality of pixels formed in luminescent areas of the cell and which are cross arcas of indium tin oxide films (ITO films) and metal line layers, comprising:

a plurality of data line pads, each connected to one end of the ITO films;

a plurality of dummy data lines, each connected to the other end of the ITO films opposite to the one end of the ITO films;

a dummy data line connecting section connected to the plurality of dummy data lines; and

a data line electrode section connected to the dummy data line connecting section and configured to provide a predetermined voltage, applied from a defect detecting apparatus, to the dummy data lines through the dummy data line connecting section.

2. The COG-typed organic electroluminescent cell of claim 1 , wherein the dummy data line connecting section is an electric conductor.

3. The COG-typed organic electroluminescent cell of claim 1 , wherein ends of die dummy data lines are cut off when the dummy data lines are connected to an integrated circuit chip.

4. The COG-typed organic electroluminescent cell of claim 1 , further including:

a plurality of first scan line pads connected to a part of the metal line layers; and

a plurality of second scan line pads connected to the other metal line layers.

5. A COG-typed organic electroluminescent cell having a plurality of pixels formed in luminescent areas of the cell and which are cross areas of indium tin oxide films (ITO films) and metal line layers, comprising:

a plurality of data line pads, each connected to one end of the ITO films;

a plurality of dummy data lines each connected to the other end of the ITO films opposite to the one end of the ITO films;

a dummy data line connecting section connected to the plurality of dummy data lines;

a plurality of scan line pads each connected to one end of the metal line layers;

a plurality of dummy scan lines, each connected to an end of the metal line layers opposite to the one end of the metal line layers;

a dummy scan line connecting section connected to the plurality of dummy scan lines;

a data line electrode section connected to the dummy data line connecting section and configured to provide a first voltage, applied from a defect-detecting apparatus, to the ITO films through the dummy data line connection section and the dummy data lines; and

a scan line electrode section connected to the dummy scan line connecting section and configured to provide a second voltage, applied from the defect-detecting apparatus, to the metal line layers through the dummy scan line connecting section and the dummy scan lines.

6. The COG-typed organic electroluminescent cell of claim 5 , wherein each of the dummy data line connecting section and the dummy scan line connecting section is an electric conductor.

Assignments (2)
COMPANY TO COMPANY Recorded Apr 18, 2008
From: LG ELECTRONICS INC.
To: LG DISPLAY CO., LTD.
Reel/Frame 020826/0926 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 16, 2005
From: KIM, HAK SU; LEE, JAE DO; HA, WON KYU
To: LG ELECTRONICS INC.
Reel/Frame 016894/0507 →