Light-emitting device and display device

• US 8,735,899 B2
• Filed: 09/13/2012
• Issued: 05/27/2014
• Est. Priority Date: 08/18/2000
• Status: Expired due to Fees

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: Yamazaki, Shunpei, Arai, Yasuyuki
• Primary Examiner(s): Tran, Tan N
• Application Number:
  US13/612,986
• Publication Number:
  US 20130012272A1
• Time in Patent Office: 621 Days
• Field of Search: 257/59, 257/72, 257/258
• US Class Current: 257/72
• CPC Class Codes: H01L 27/12 the substrate being other than a semiconductor body, e.g. an insulating body
• CPC Class Codes: H01L 27/1214 comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
• CPC Class Codes: H01L 29/78603 characterised by the insulating substrate or support H01L29/78657 takes precedence
• CPC Class Codes: H10K 2102/311 Flexible OLED
• CPC Class Codes: H10K 50/82 Cathodes
• CPC Class Codes: H10K 50/84 Passivation; Containers; Encapsulations
• CPC Class Codes: H10K 50/841 Self-supporting sealing arrangements
• CPC Class Codes: H10K 50/8426 Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 50/846 comprising getter material or desiccants
• CPC Class Codes: H10K 50/86 Arrangements for improving contrast, e.g. preventing reflection of ambient light
• CPC Class Codes: H10K 59/00 Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
• CPC Class Codes: H10K 59/12 Active-matrix OLED [AMOLED] displays
• CPC Class Codes: H10K 59/1201 Manufacture or treatment
• CPC Class Codes: H10K 59/1213 the pixel elements being TFTs
• CPC Class Codes: H10K 59/122 Pixel-defining structures or layers, e.g. banks
• CPC Class Codes: H10K 71/00 Manufacture or treatment specially adapted for the organic devices covered by this subclass

Abstract

Although an organic resin substrate is highly effective at reducing the weight and improving the shock resistance of a display device, it is required to improve the moisture resistance of the organic resin substrate for the sake of maintaining the reliability of an EL element. Hard carbon films are formed to cover a surface of the organic resin substrate and outer surfaces of a sealing member. Typically, DLC (Diamond like Carbon) films are used as the carbon films. The DLC films have a construction where carbon atoms are bonded into an SP³ bond in terms of a short-distance order, although the films have an amorphous construction from a macroscopic viewpoint. The DLC films contain 95 to 70 atomic % carbon and 5 to 30 atomic % hydrogen, so that the DLC films are very hard and minute and have a superior gas barrier property and insulation performance.

Claims

1. An electronic equipment comprising:

a main body including a display surface; and

an active matrix type display device incorporated into the main body so as to display an image on the display surface,

wherein the active matrix type display device includes an organic electro-luminescent material between a first substrate and a second substrate,

wherein an outer surface of the electronic equipment is concavely curved, and

wherein the first substrate and the second substrate are curved along the curved outer surface of the electronic equipment.

2. The electronic equipment according to claim 1, wherein the electronic equipment is one of a cellular phone and a digital camera.

3. The electronic equipment according to claim 1, wherein the first substrate and the second substrate are an organic resin substrate.

4. The electronic equipment according to claim 1, wherein a back side of the main body opposed to the display surface is curved.

5. The electronic equipment according to claim 1, wherein the outer surface of the electronic equipment is curved in a longitudinal direction.

6. The electronic equipment according to claim 1, wherein each of the first substrate and the second substrate comprises aramid.

7. An electronic equipment comprising:

a main body including a display surface;

an active matrix type display device incorporated into the main body so as to display an image on the display surface; and

a touch sensor so that a user operates buttons on the display surface,

wherein the active matrix type display device includes an organic electro-luminescent material between a first substrate and a second substrate,

wherein an outer surface of the electronic equipment is concavely curved, and

wherein the first substrate and the second substrate are curved along the curved outer surface of the electronic equipment.

8. The electronic equipment according to claim 7, wherein the electronic equipment is one of a cellular phone and a digital camera.

9. The electronic equipment according to claim 7, wherein the first substrate and the second substrate are an organic resin substrate.

10. The electronic equipment according to claim 7, wherein a back side of the main body opposed to the display surface is curved.

11. The electronic equipment according to claim 7, wherein the outer surface of the electronic equipment is curved in a longitudinal direction.

12. The electronic equipment according to claim 7, wherein each of the first substrate and the second substrate comprises aramid.

13. An electronic equipment comprising:

an active matrix type display device incorporated into the electronic equipment,

wherein the active matrix type display device includes an organic electro-luminescent material between a first substrate and a second substrate,

wherein an outer surface of the electronic equipment is concavely curved,

wherein the organic electro-luminescent material emits light through the outer surface of the electronic equipment, and

wherein the first substrate and the second substrate are curved along the curved outer surface of the electronic equipment.

14. The electronic equipment according to claim 13, wherein the electronic equipment is a digital camera.

15. The electronic equipment according to claim 13, wherein the first substrate and the second substrate are an organic resin substrate.

16. The electronic equipment according to claim 13, wherein a back side of the electronic equipment opposed to the outer surface is curved.

17. The electronic equipment according to claim 13, wherein the outer surface of the electronic equipment is curved in a longitudinal direction.

18. The electronic equipment according to claim 13, wherein each of the first substrate and the second substrate comprises aramid.

19. A cellular phone comprising:

an active matrix type display device incorporated into the cellular phone,

wherein the active matrix type display device includes an organic electro-luminescent material between a first substrate and a second substrate,

wherein an outer surface of the cellular phone is concavely curved,

wherein the organic electro-luminescent material emits light through the outer surface of the cellular phone, and

wherein the first substrate and the second substrate are curved along the curved outer surface of the cellular phone.

20. The cellular phone according to claim 19, wherein the first substrate and the second substrate are an organic resin substrate.

21. The cellular phone according to claim 19, wherein a back side of the cellular phone opposed to the outer surface is curved.

22. The cellular phone according to claim 19, wherein the outer surface of the cellular phone is curved in a longitudinal direction.

23. The cellular phone according to claim 19, wherein each of the first substrate and the second substrate comprises aramid.