ORGANIC LIGHT-EMITTING DISPLAY APPARATUS

• US 20180081089A1
• Filed: 11/29/2017
• Published: 03/22/2018
• Est. Priority Date: 04/25/2013
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: KIM, Nam Jin, PARK, Chul Hwan, KIM, Sang Woo, KIM, Mi Kyung
• Granted Patent: US 10,234,602 B2
• Time in Patent Office: Days
• CPC Class Codes: G02B 1/14 Protective coatings, e.g. hard coatings
• CPC Class Codes: G02B 1/18 Coatings for keeping optical surfaces clean, e.g. hydrophobic or photo-catalytic films G02B1/16 takes precedence
• CPC Class Codes: G02B 5/3033 in the form of a thin sheet or foil, e.g. Polaroid
• CPC Class Codes: H10K 50/841 Self-supporting sealing arrangements
• CPC Class Codes: H10K 59/87 Passivation; Containers; Encapsulations
• CPC Class Codes: H10K 59/871 Self-supporting sealing arrangements
• CPC Class Codes: H10K 59/8791 Arrangements for improving contrast, e.g. preventing reflection of ambient light
• CPC Class Codes: H10K 59/8793 Arrangements for polarized light emission H10K59/8791 takes precedence

Abstract

A functional polarizing film includes a polarizing layer, at least one moisture-binding layer on a first surface of the polarizing layer, and at least one moisture-blocking layer disposed on a first surface of the moisture-binding layer.

Claims

1-12. -12. (canceled)

13. An organic light-emitting display apparatus comprising:

a display substrate;

a plurality of organic light-emitting devices on the display substrate; and

a first functional polarizing film sealing the plurality of organic light-emitting devices, the first functional polarizing film including a first polarizing layer, at least one first moisture-binding layer on a first surface of the first polarizing layer, and at least one first moisture-blocking layer disposed on a first surface of the first moisture-binding layer.

14. The organic light-emitting display apparatus as claimed in claim 13, further comprising a sealing film between the plurality of organic light-emitting devices and the first functional polarizing film.

15. The organic light-emitting display apparatus as claimed in claim 14, wherein the sealing film includes at least one inorganic layer.

16. The organic light-emitting display apparatus as claimed in claim 13, further comprising a second functional polarizing film under the display substrate, the second functional polarizing film including a second polarizing layer, at least one second moisture-binding layer on a first surface of the second polarizing layer, and at least one second moisture-blocking layer disposed on a first surface of the second moisture-binding layer.

17. The organic light-emitting display apparatus as claimed in claim 13, wherein the first functional polarizing film further comprises an adhesive layer on a surface facing the display substrate.

19. The organic light-emitting display apparatus as claimed in claim 13, wherein at least one of the first moisture-binding layer and the first moisture-blocking layer is formed in plural.

21. The organic light-emitting display apparatus as claimed in claim 13, wherein each of the at least one first moisture-binding layer and the at least one first moisture-blocking layer includes an organic material.

22. The organic light-emitting display apparatus as claimed in claim 13, wherein the at least one first moisture-binding layer includes at least one of polyvinyl alcohol (PVA), an ethylene vinyl alcohol copolymer (EVOH), or poly vinylidene chloride (PVDC).

23. The organic light-emitting display apparatus as claimed in claim 13, wherein the at least one first moisture-blocking layer includes a cyclo-olefin polymer (COP).

24. The organic light-emitting display apparatus as claimed in claim 13, wherein the at least one first moisture-binding layer is configured to block permeation of oxygen.

18. (canceled)

20. (canceled)

25. An organic light-emitting display apparatus comprising:

a display substrate;

a plurality of organic light-emitting devices on the display substrate;

a sealing film sealing the plurality of organic light-emitting devices; and

a functional polarizing film on the sealing film,

wherein the functional polarizing film comprises a first adhesive layer, a moisture-binding layer, a moisture-blocking layer, and a polarizing layer,

wherein the first adhesive layer is between the sealing film and the moisture-binding layer.

26. The organic light-emitting display apparatus as claimed in claim 25,

wherein the first adhesive layer, the moisture-binding layer, the moisture-blocking layer, and the polarizing layer are sequentially stacked.

27. The organic light-emitting display apparatus as claimed in claim 25,

wherein the first adhesive layer, the moisture-blocking layer, the moisture-binding layer and the polarizing layer are sequentially stacked.

28. The organic light-emitting display apparatus as claimed in claim 25, the functional polarizing film further comprising:

a second adhesive layer disposed between the moisture-binding layer and the moisture-blocking layer; and

a third adhesive layer disposed between the moisture-blocking layer and the polarizing layer.

29. The organic light-emitting display apparatus as claimed in claim 25, the functional polarizing film further comprising:

a support layer on the polarizing layer, the support layer being configured to support the polarizing layer; and

a fourth adhesive layer disposed between the polarizing layer and the support layer.

30. The organic light-emitting display apparatus as claimed in claim 29, wherein the support layer includes triacetate cellulose (TAC).

31. The organic light-emitting display apparatus as claimed in claim 25, wherein the moisture-binding layer includes at least one of PVA, an ethylene vinyl alcohol copolymer (EVOH), or poly vinylidene chloride (PVDC).

32. The organic light-emitting display apparatus as claimed in claim 25, wherein the moisture-blocking layer includes a cyclo-olefin polymer (COP).

33. The organic light-emitting display apparatus as claimed in claim 25, wherein the moisture-binding layer and the moisture-blocking layer includes an organic material.

34. The organic light-emitting display apparatus as claimed in claim 25, wherein the sealing film includes at least one inorganic layer.