DISPLAY DEVICE HAVING AN ANTENNA AND METHOD OF MANUFACTURING SAME

• US 20110227800A1
• Filed: 09/09/2010
• Published: 09/22/2011
• Est. Priority Date: 09/10/2009
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: TAKAHASHI, Yuji, Ikeda, Kiyohiko, Ozaki, Toru, Horie, Takefumi, Kubota, Kazumi, Naito, Hirohisa, Miyazaki, Akira, Kii, Takahiro, Hatanaka, Masanobu
• Granted Patent: US 8,536,588 B2
• Time in Patent Office: Days
• US Class Current: 343/720
• CPC Class Codes: C09K 11/574 with zinc or cadmium
• CPC Class Codes: C09K 11/584 with zinc or cadmium
• CPC Class Codes: G09F 13/22 electroluminescent electroluminescent light sources per se H05B33/00
• CPC Class Codes: H05B 33/145 Arrangements of the electroluminescent material
• 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: H05B 41/24 in which the lamp is fed by high frequency ac, or with separate oscillator frequencyH05B41/26 takes precedence

Abstract

A display device and a method of manufacturing the same, the display includes: an electrode plate operable to have a radio-frequency wave to pass therethrough; a light-emitting portion disposed in a direction of one surface of the electrode plate, the light-emitting portion including the electrode plate serving as a back electrode; and an antenna disposed in a direction of another surface of the electrode plate, the antenna having a stripline structure or a microstrip line structure and using a potential of the electrode plate as a reference potential.

Claims

1. A display device, comprising:

an electrode plate operable to have a radio-frequency wave pass therethrough;

a light-emitting portion disposed in a direction of one surface of the electrode plate, the light-emitting portion including the electrode plate serving as a back electrode; and

an antenna disposed in a direction of another surface of the electrode plate, the antenna having a stripline structure or a microstrip line structure and using potential of the electrode plate as reference potential.

2. The display device according to claim 1, wherein

the electrode plate has a volume resistivity larger than 1.0×

10<sup>−

6</sup> Ω

·

m.

3. The display device according to claim 1, further comprising:

a light-emitter driving controller configured to control driving of the light-emitting portion; and

an antenna driving controller configured to control driving of the antenna.

4. The display device according to claim 3, wherein

the antenna and the antenna driving controller constitute at least part of an apparatus for exchanging information with an external terminal.

5. The display device according to claim 1, further comprising:

a dielectric layer positioned between the light-emitting portion and the electrode plate.

6. The display device according to claim 1, further comprising:

a package portion enclosing the electrode plate, the light-emitting portion, and the antenna.

7. The display device according to claim 1, wherein the light-emitting portion includes any one of copper-doped zinc sulfide (ZnS:

Cu) and manganese-doped zinc sulfide (ZnS;

Mn).

8. The display device according to claim 1, further comprising:

a transparent electrode attached to the light-emitting portion.

9. The display device according to claim 1, wherein

the transparent electrode includes any one of indium tin oxide (ITO) and indium zinc oxide (IZO).

10. The display device according to claim 1, wherein

the antenna includes an antenna electrode.

11. A method of manufacturing a display device comprising:

providing an electrode plate that allows a radio-frequency wave to pass therethrough;

disposing a light emitter in a direction of one surface of the electrode plate, the light emitter including the electrode plate serving as a back electrode;

disposing an antenna in a direction of another surface of the electrode plate, the antenna having a stripline structure or a microstrip line structure; and

using a potential of the electrode plate as reference potential.

12. The method according to claim 11, further comprising:

setting an impedance of the antenna to a predetermined value.

13. The method according to claim 11, further comprising:

providing a light-emitter driving controller configured to control driving of the light emitter; and

providing an antenna driving controller configured to control driving of the antenna.

14. The method according to claim 13, wherein

the antenna and the antenna driving controller constitute at least part of an apparatus for exchanging information with an external terminal.

15. The method according to claim 11, further comprising:

positioning a dielectric layer between the light emitter and the electrode plate.

16. The method according to claim 11, further comprising:

substantially enclosing the electrode plate, the light emitter, and the antenna.

17. The method according to claim 11, further comprising:

attaching a transparent electrode to the light emitter.

18. The method according to claim 11, further comprising:

providing the antenna with an antenna electrode.