DUAL-EMISSION ORGANIC ELECTROLUMINESCENT DEVICE

Abstract

A dual-emission organic electroluminescent device. The device comprises a substrate with a display region and a seal region, a plurality of bottom-emission organic light emitting diode pixel arrays, and a plurality of top-emission organic light emitting diode pixel arrays. The bottom-emission and top-emission organic light emitting diode pixel arrays are disposed coplanarly on the display region of the substrate arranged alternately.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The invention can be more fully understood by reading the subsequent detailed description and examples with references made to the accompanying drawings, wherein:

FIG. 1 is cross sections of a conventional dual-screen display set.

FIG. 2 is a cross section of another conventional dual-screen organic electroluminescent device.

FIGS. 3 a to 3d are cross sections of the process of manufacturing a dual-emission organic electroluminescent device according to an embodiment of the invention.

FIGS. 4 a and 4b show a location relationship between bottom-emission and top-emission organic light emitting diode pixel arrays according to embodiments of the invention.

FIG. 5 is a cross section of a dual-emission organic electroluminescent device according to an embodiment of the invention.

FIG. 6 is a cross section of a dual-emission organic electroluminescent device according to another embodiment of the invention.

Claims

1. A dual emission organic electroluminescent device, comprising: a substrate with a display region and a seal region; anda plurality of bottom-emission organic light emitting diode pixel arrays and a plurality of top-emission organic light emitting diode pixel arrays within the display region,wherein the bottom-emission and top-emission organic light emitting diode pixel arrays are disposed coplanarly on the substrate and arranged alternately.

2. The device as claimed in claim 1, wherein display areas of the plurality of bottom-emission organic light emitting diode pixel arrays are the same as those of the plurality of top-emission organic light emitting diode pixel arrays.

3. The device as claimed in claim 1, wherein display areas of the plurality of bottom-emission organic light emitting diode pixel arrays are different from those of the plurality of top-emission organic light emitting diode pixel arrays.

4. The device as claimed in claim 1, wherein the substrate is a glass substrate, a plastic substrate, or a ceramic substrate.

5. The device as claimed in claim 1, wherein the top-emission and bottom-emission organic light emitting diode pixel arrays comprise small molecule-based organic light emitting diodes.

6. The device as claimed in claim 1, wherein the top-emission and bottom-emission organic light emitting diode pixel arrays comprise polymer-based organic light emitting diodes.

7. The device as claimed in claim 1, wherein the top-emission and bottom-emission organic light emitting diode pixel arrays comprise active matrix organic light emitting diode pixel arrays.

8. The device as claimed in claim 1, wherein the top-emission and bottom-emission organic light emitting diode pixel arrays comprise passive matrix organic light emitting diode pixel arrays.

9. The device as claimed in claim 1, further comprising: a sealing case; andan adhesive disposed on the substrate within the seal region for bonding the sealing case on the substrate

10. The device as claimed in claim 9, wherein the sealing case has a transparency of more than 30%.

11. The device as claimed in claim 9, wherein the sealing case comprises glass substrate or a plastic substrate.

12. The device as claimed in claim 9, further comprising a desiccant within the seal region surrounding the display region.

13. The device as claimed in claim 12, wherein the desiccant is formed on by deposition.

14. The device as claimed in claim 12, wherein the desiccant is attached on the substrate or the sealing case.

15. The device as claimed in claim 12, wherein the desiccant is attached on the sealing case.

16. The device as claimed in claim 12, wherein the desiccant is formed on the substrate within the seal region surrounding the display region.

17. The device as claimed in claim 12, wherein the desiccant is formed on the sealing case within the seal region surrounding the display region.

18. The device as claimed in claim 12, wherein the desiccant is formed on the sealing case and the substrate within the seal region surrounding the display region.