TESTING METHODS OF OLED PANELS FOR ALL PIXELS ON

• US 20030113942A1
• Filed: 12/13/2002
• Published: 06/19/2003
• Est. Priority Date: 12/13/2001
• Status: Active Grant

• Current Assignee: RITDISPLAY CORPORATION
• Original Assignee: RITDISPLAY CORPORATION
• Inventors: LIN, SHU-HSIN, WU, MING-HSIN, WANG, YEN-LIN, CHEN, JU-CHUNG
• Granted Patent: US 6,808,949 B2
• Time in Patent Office: Days
• US Class Current: 438/14
• CPC Class Codes: G09G 3/006 Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays testing individual LED's G01R31/2635; testing lamps G01R31/44; testing of optical features of LCD displays G02F1/1309
• CPC Class Codes: G09G 3/3208 organic, e.g. using organic light-emitting diodes [OLED]

Abstract

Abstract of Disclosure

The testing methods of OLED panels for all pixels on are provided. The methods include positioning anisotropic conductive films and conductive plates over a set of exposed first electrodes and a set of exposed second electrodes. Through the anisotropic conductive film and the conductive plate, the set of first electrodes and the set of second electrodes conduct. Thereafter, the set of first electrodes is connected to a first voltage and the set of second electrodes is connected to a second voltage. Through the voltage difference between the first voltage and the second voltage, all the diodes inside the OLED panels are lit to perform the test.

Claims

1. A testing method of organic light emitting diode (OLED) panel for all pixels on, comprising the steps of:

providing an organic light emitting diode (OLED) panel, wherein the OLED panel has a display region and a non-display region and the non-display region has a plurality of first electrodes and a plurality of second electrodes;

attaching a first anisotropic conductive film over the first electrodes;

attaching a first conductive plate over the first anisotropic conductive film;

attaching a second anisotropic conductive film over the second electrodes;

attaching a second conductive plate over the second anisotropic conductive film; and

connecting the first conductive plate to a first voltage and connecting the second conductive plate to a second voltage for driving the display region.

2. The testing method of organic light emitting diode (OLED) panel for all pixels on of claim 1, wherein the first electrodes extend in a direction perpendicular to the second electrodes.

3. The testing method of organic light emitting diode (OLED) panel for all pixels on of claim 1, wherein the first conductive plates are fabricated using copper foils.

4. The testing method of organic light emitting diode (OLED) panel for all pixels on of claim 1, wherein the second conductive plates are fabricated using copper foils.

5. The testing method of organic light emitting diode (OLED) panel for all pixels on of claim 1, wherein after attaching conductive plate over the anisotropic conductive film, further includes applying fastening glue to the edges of the conductive plate so that the plate is fixed in position.

6. The testing method of organic light emitting diode (OLED) panel for all pixels on of claim 5, wherein the fastening glue includes a silicone glue.

7. A testing method of organic light emitting diode (OLED) panels for all pixels on, comprising the steps of:

providing a plurality of organic light emitting diode (OLED) panels each having a display region and a non-display region, wherein each non-display region has a plurality of first electrodes and a plurality of second electrodes;

attaching a plurality of first anisotropic conductive films over the first electrodes of the respective OLED panels;

attaching a first conductive plate over the first anisotropic conductive films to connect all the first anisotropic conductive films serially;

attaching a plurality of second anisotropic conductive films over the second electrodes of the respective OLED panels;

attaching a plurality of second conductive plates over the respective second anisotropic conductive films; and

connecting the first conductive plate to a first voltage and connecting the second conductive plates to a second voltage for driving the display region of all the OLED panels.

8. The testing method of organic light emitting diode (OLED) panels for all pixels on of claim 7, wherein the first electrodes extend in a direction perpendicular to the second electrodes.

9. The testing method of organic light emitting diode (OLED) panels for all pixels on of claim 7, wherein the first conductive plates are fabricated using copper foil.

10. The testing method of organic light emitting diode (OLED) panels for all pixels on of claim 7, wherein the second conductive plates are fabricated using copper foil.

11. The testing method of organic light emitting diode (OLED) panels for all pixels on of claim 7, after attaching conductive plate over the anisotropic conductive film, further includes applying fastening glue to the edges of the conductive plate so that the plate is fixed in position.

12. The testing method of organic light emitting diode (OLED) panels for all pixels on of claim 11, wherein the fastening glue includes a silicone glue.

13. A testing method of organic light emitting diode (OLED) panels for all pixels on, comprising the steps of:

providing a plurality of organic light emitting diode (OLED) panels each having a display region and a non-display region, wherein each non-display region has a plurality of first electrodes and a plurality of second electrodes;

attaching a plurality of first anisotropic conductive films over the first electrodes of the respective OLED panels;

attaching a first conductive plate over the first anisotropic conductive films to connect all the first anisotropic conductive films serially;

attaching a plurality of second anisotropic conductive films over the second electrodes of the respective OLED panels;

attaching a second conductive plate over the respective second anisotropic conductive films so that the second anisotropic conductive films are serially connected; and

connecting the first conductive plate to a first voltage and connecting the second conductive plate to a second voltage for driving the display region of all the OLED panels.

14. The testing method of organic light emitting diode (OLED) panels for all pixels on of claim 13, wherein the first electrodes extend in a direction perpendicular to the second electrodes.

15. The testing method of organic light emitting diode (OLED) panels for all pixels on of claim 13, wherein the first conductive plates are fabricated using copper foil.

16. The testing method of organic light emitting diode (OLED) panels for all pixels on of claim 13, wherein the second conductive plates are fabricated using copper foil.

17. The testing method of organic light emitting diode (OLED) panels for all pixels on of claim 13, after attaching conductive plate over the anisotropic conductive film, further includes applying fastening glue to the edges of the conductive plate so that the plate is fixed in position.

18. The testing method of organic light emitting diode (OLED) panels for all pixels on of claim 17, wherein the fastening glue includes a silicone glue.