Light-emitting device and display device

Patent metadata

Field	Value
Publication number	US-9263697-B2
Application number	US-201414284721-A
Country	US
Kind code	B2
Filing date	May 22, 2014
Priority date	Aug 18, 2000
Publication date	Feb 16, 2016
Grant date	Feb 16, 2016

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 SP 3 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.

First claim

What is claimed is:

1. A light emitting display device comprising:
a first substrate;
a thin film transistor over the first substrate;
an interlayer insulating film comprising an organic resin over the thin film transistor;
a first electrode over the interlayer insulating film;
a light-emitting layer including an organic compound over the first electrode;
a second electrode over the light-emitting layer;
a first sealing member around a pixel portion of the light emitting display device;
a second sealing member outside and along the first sealing member; and
a second substrate over the second electrode,
wherein each of the first substrate and the second substrate comprises aramid.

2. An electronic equipment comprising the light emitting display device according to claim 1 .

3. The light emitting display device according to claim 1 , wherein the second sealing member does not extend beyond an edge of the first substrate and the second substrate.

4. The light emitting display device according to claim 1 , wherein the first sealing member does not overlap the interlayer insulating film.

5. The light emitting display device according to claim 1 , wherein the first electrode is a cathode and the second electrode is an anode.

6. The light emitting display device according to claim 1 , wherein the thin film transistor comprises a channel formation region, the channel formation region comprising silicon.

7. A light emitting display device comprising:
a light emitting element comprising a pair of electrodes and a light-emitting layer between the pair of electrodes, the light-emitting layer comprising an organic compound; and
a pair of substrates each comprising aramid,
wherein the light emitting element is between the pair of substrates.

8. The light emitting display device according to claim 7 , further comprising a barrier layer on an outer surface of each of the pair of substrates.

9. The light emitting display device according to claim 8 , wherein the barrier layer is a carbon layer.

10. The light emitting display device according to claim 7 , further comprising a first sealing member and a second sealing member between the pair of substrates, wherein each of the first sealing member and the second sealing member is provided along a periphery of the pair of substrates.

11. The light emitting display device according to claim 7 , further comprising a thin film transistor electrically connected to one of the pair of electrodes.

12. A light emitting display device comprising:
a first substrate;
a thin film transistor over the first substrate;
an interlayer insulating film comprising an organic resin over the thin film transistor;
a first electrode over the interlayer insulating film;
a light-emitting layer including an organic compound over the first electrode;
a second electrode over the light-emitting layer; and
a second substrate over the second electrode, wherein the second substrate is attached to the first substrate,
wherein each of the first substrate and the second substrate comprises aramid.

13. An electronic equipment comprising the light emitting display device according to claim 12 .

14. The light emitting display device according to claim 12 , wherein the first electrode is a cathode and the second electrode is an anode.

15. The light emitting display device according to claim 12 , wherein the thin film transistor comprises a channel formation region, the channel formation region comprising silicon.

Assignees

• Semiconductor Energy Lab

Inventors

• Yamazaki Shunpei
• Arai Yasuyuki

Classifications

• H10K59/8792

  comprising light absorbing layers, e.g. black layers · CPC title

• H10K59/874

  including getter material or desiccant · CPC title

• H10K59/8722

  Peripheral sealing arrangements, e.g. adhesives, sealants · CPC title

• H10K59/871

  Self-supporting sealing arrangements · CPC title

• H10K59/1213

  the pixel elements being TFTs · CPC title