SYSTEM FOR DISPLAYING IMAGES

• US 20070285001A1
• Filed: 06/08/2006
• Published: 12/13/2007
• Est. Priority Date: 06/08/2006
• Status: Abandoned Application

• Current Assignee: National Taiwan University (Government of The Republic of China), InnoLux Corporation
• Original Assignee: National Taiwan University (Government of The Republic of China), Toppoly Optoelectronics Corporation (InnoLux Corporation)
• Inventors: Tsai, Yaw-Ming, Chen, Liang-Jyi, Hsu, Hsiang-Lun, Lu, Po-Yen, Wu, Chung-Chih, Lu, Yin-Jui, Chen, Chieh-Wei, Nishikawa, Ryuji
• Application Number:
  US11/422,896
• Publication Number:
  US 20070285001A1
• Time in Patent Office: Days
• US Class Current: 313/503
• CPC Class Codes: H05B 33/22 characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
• CPC Class Codes: H10K 50/19 Tandem OLEDs
• CPC Class Codes: H10K 50/82 Cathodes
• CPC Class Codes: H10K 59/80523 Multilayers, e.g. opaque multilayers

Abstract

Systems for displaying images. A representative system incorporates an electroluminescent diode that includes a composite electrode structure. Particularly, the composite electrode structure comprises a layer containing alkali or alkaline earth compounds, and a metal oxide layer or semiconductor layer. Wherein, the alkali or alkaline earth compound has carbonyl group or fluorine.

Claims

1. A system for displaying images, comprising:

an organic electroluminescent diode having a composite electrode structure, wherein the composite electrode structure comprises;

a layer containing alkali or alkaline earth compounds, wherein the alkali or alkaline earth compound has carbonyl group or fluorine; and

a metal oxide layer or semiconductor layer.

2. The system as claimed in claim 1, wherein the alkali or alkaline earth compound comprises a fluoride containing Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, or Ba.

3. The system as claimed in claim 2, wherein the alkali or alkaline earth compound comprises NaF, KF, RbF, CsF, BeF₂, MgF₂, CaF₂, SrF₂, or BaF₂

4. The system as claimed in claim 13 wherein the alkali or alkaline earth compound comprises a carbonyl compound containing Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, or Ba.

5. The system as claimed in claim 4, wherein the alkali or alkaline earth compound comprises Li₂CO₃, LiCO₃, Na₂CO₃, NaCO₃, K₂CO₃, KCO₃, Rb₂CO₃, RbCO₃, Cs₂CO₃, CsCO₃, BeCO, BeCO₃, MgCO, MgCO₃, CaO, Ca₂CO₃, CaCO₃, SrCO, SrCO₃, BaCO, or BaCO₃.

6. The system as claimed in claim 1, wherein the metal oxide layer comprises oxide of transition metal.

7. The system as claimed in claim 6, wherein the transition metal comprises atoms of Group IB, Group IIB, Group IVB, Group VB, Group VIB, or Group VIIIB.

8. The system as claimed in claim 1, wherein the metal oxide layer comprises Group VB metal oxide.

9. The system as claimed in claim 8, wherein the metal oxide layer comprises oxide of V.

10. The system as claimed in claim 9, wherein the oxide of V comprises VO, V₂O₃, VO₂, or V₂O₅.

11. The system as claimed in claim 1, wherein the metal oxide layer comprises Group VIB metal oxide.

12. The system as claimed in claim 11, wherein the metal oxide layer comprises oxide of Mo or W.

13. The system as claimed in claim 6, wherein the metal oxide layer comprises WO, W₂O₃, WO₂, WO₃, W₂O₅, VO, V₂O₃, VO₂, V₂O₅, MoO, Mo₂O₃, MoO₂, MoO₃, or Mo₂O₅.

14. The system as claimed in claim 1, wherein the semiconductor layer comprises Si, Ge, GaAs, SiC, or SiGe.

15. The system as claimed in claim 14, wherein the semiconductor layer is a non-doped semiconductor layer.

16. The system as claimed in claim 14, wherein the semiconductor layer is a n-type ions doping or a p-type ions doping semiconductor layer.

17. The system as claimed in claim 1, wherein the layer containing alkali or alkaline earth compound is doped with electron transport material.

18. The system as claimed in claim 1, wherein the composite electrode structure further comprises a metal layer formed between the layer containing alkali or alkaline earth compound and the metal oxide layer or semiconductor layer.

19. The system as claimed in claim 18, wherein the metal layer comprises Al, Ag, Au, or combinations thereof.

20. The system as claimed in claim 1, wherein the composite electrode structure serves as an anode electrode or a cathode electrode of the organic electroluminescent diode.

21. The system as claimed in claim 1, wherein the organic electroluminescent diode is a tandem organic electroluminescent diode, and the composite electrode structure serves as a connecting electrode structure.

22. The system as claimed in claim 1, further comprising a display panel, wherein the display panel comprises the organic electroluminescent diode.

23. The system as claimed in claim 22, further comprising an electronic device, wherein the electronic device comprises:

the display panel; and

an input unit coupled to the organic electroluminescent diode.

24. The system as claimed in claim 23, wherein the electronic device is a mobile phone, digital camera, PDA (personal digital assistant), notebook computer, desktop computer, television, car display, or portable DVD player.