PACKAGE FOR PROTECTING A DEVICE FROM AMBIENT SUBSTANCES

• US 20100025723A1
• Filed: 12/12/2007
• Published: 02/04/2010
• Est. Priority Date: 12/19/2006
• Status: Active Grant

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Krijne, Johannes, Young, Edward Willem Albert
• Granted Patent: US 8,395,177 B2
• Time in Patent Office: Days
• US Class Current: 257/99
• CPC Class Codes: B32B 27/00 Layered products comprising a layer of synthetic resin fibrous or filamentary layer made of a synthetic resin B32B5/02; particulate layer made of a synthetic resin B32B5/16; foamed layer made of a synthetic resin B32B5/18
• CPC Class Codes: H05B 33/04 Sealing arrangements , e.g. against humidity
• CPC Class Codes: H10K 50/84 Passivation; Containers; Encapsulations
• CPC Class Codes: H10K 50/841 Self-supporting sealing arrangements
• CPC Class Codes: H10K 59/871 Self-supporting sealing arrangements

Abstract

A package (1; 20) for protecting a device (2; 21) from ambient substances, the package comprising an enclosure surrounding the device (2; 21). The enclosure includes a multi-layer barrier (7; 24) and an internal substance binding member (14; 27) which is provided inside the enclosure to bind at least one of said ambient substances having penetrated the enclosure. The package (1; 20) further comprises an intermediate substance binding member (14; 29) which is provided between an inner (11a-b; 25) and an outer (16a-b; 28) barrier layer of the multi-layer barrier (7; 24) to bind a fraction of the substance having penetrated the outer barrier layer (16a-b; 28).

Claims

1. A package (1;

20) for protecting a device (2;

21) from ambient substances, said package comprising an enclosure surrounding said device (2;

21), said enclosure including a multi-layer barrier (7;

24) and an internal substance binding member (14;

27) which is provided inside said enclosure to bind at least one ambient substance having penetrated said enclosure,

characterized in that

the package (1;

20) further comprises;

an intermediate substance binding member (17;

29) which is provided between an inner (11a-b;

25) and an outer (16a-b;

28) barrier layer of said multi-layer barrier (7;

24) to bind a fraction of said substance having penetrated said outer barrier layer (16a-b;

28).

2. A package (1;

20) according to claim 1, wherein said multi-layer barrier (7;

24) is transparent.

3. A package (1;

20) according to claim 1, wherein said multi-layer barrier (7;

24) is flexible.

4. A package (1;

20) according to claim 3, wherein said multi-layer barrier (7;

24) is formed by inner (11a-b;

25) and outer (16a-b;

28) organic films, each having an inorganic barrier layer.

5. A package (1;

20) according to claim 4, wherein;

said internal substance binding member (14;

27) is provided on said inner organic film (11a-b;

25); and

said intermediate substance binding member (14;

29) is provided on said outer organic film (16a-b;

28).

6. A package (1;

20) according to claim 1, wherein each of said internal (14;

27) and intermediate (14;

29) substance binding members is adapted to bind at least one of oxygen and moisture.

7. A package (20) according to claim 1, wherein:

said device (21) is mounted on a rigid carrier (22) being impermeable to said ambient substance; and

said multi-layer barrier (24) is bonded to said rigid carrier (22) to enclose said device (21).

8. A package (1) according to claim 1, wherein:

said device (2) is mounted on a flexible carrier (3);

said multi-layer barrier (7) comprises;

an inner barrier layer (11a-b) being formed by an inner film enclosing said protected device (2); and

an outer barrier layer (16a-b) being formed by an outer film enclosing said inner barrier layer (11a-b); and

said multi-layer barrier (7) is configured to enable electrical connection between the protected device (2) and an external device.

9. A package (1) according to claim 8, wherein:

said flexible carrier (3) has a device-supporting portion (4) and a lead-out portion (5); and

said inner film encloses said device (2) and said device-supporting portion (4) of the carrier (3), and is bonded to upper and lower faces of said lead-out portion (5) of the carrier (3) such that said lead-out portion (5) penetrates said inner barrier layer (11a-b); and

said outer film encloses said inner barrier layer (11a-b), and is bonded to said upper and lower faces of said lead-out portion (5) of the carrier (3) such that said lead-out portion (5) penetrates said outer barrier layer (16a-b), thereby enabling electrical connection between the protected device (2) and an external device.

10. A package (1) according to claim 8, wherein:

said multi-layer barrier (7) further comprises an electrically conductive lead-through for enabling electrical conduction from an internal conductor structure provided on an inside of said multi-layer barrier to an external conductor structure provided on an outside of said multi-layer barrier; and

said internal conductor structure is electrically connected to said protected device, thereby enabling electrical connection between the protected device and an external device.

11. A light-emitting device comprising:

an OLED; and

a package (1;

20) according to claim 2 for protecting said OLED from an ambient.

12. A sensing device comprising:

a sensor; and

a package (1;

20) according to claim 1 for protecting said sensor from an ambient.