Display device and electronic apparatus

• US 7,336,270 B2
• Filed: 02/20/2004
• Issued: 02/26/2008
• Est. Priority Date: 03/14/2003
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Sato, Takashi
• Primary Examiner(s): DHARIA, PRABODH M
• Application Number:
  US10/781,731
• Publication Number:
  US 20040189625A1
• Time in Patent Office: 1,467 Days
• Field of Search: 345/55, 345/80, 345/81, 345204-206, 345/87, 3151691-1694, 368/82, 438/455, 438/14, 438/458, 340/572.1, 340/928, 235/492, 235/491, 235/380, 257/99, 257/679, 349/152, 434/317, 428/202, 705/12, 313/504
• US Class Current: 345/204
• CPC Class Codes: G06K 19/07749 the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
• CPC Class Codes: G09G 2380/04 Electronic labels
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
• CPC Class Codes: G09G 3/3648 using an active matrix G09G3/367 - G09G3/3696 take precedence
• CPC Class Codes: H01L 2224/0401 Bonding areas specifically adapted for bump connectors, e.g. under bump metallisation [UBM]
• CPC Class Codes: H01L 2224/16 of an individual bump connector
• CPC Class Codes: H01L 2924/00014 the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
• CPC Class Codes: H01L 2924/01019 Potassium [K]
• CPC Class Codes: H01L 2924/3025 Electromagnetic shielding

Abstract

To provide a display device and an electronic apparatus including a radio communication device, an embodiment of the radio communication device being an IC tag, which do not need a special space to attach the IC tag and is capable of reducing the amount of time and effort required for attaching the IC tag, a display device including a radio communication device having at least one substrate provided with a display unit and display-unit-driving wiring lines 9 and 10, a communication integrated-circuit unit, and an antenna is provided. At least a part of the antenna is formed on the substrate and formed of a conductor formed in the same layer as a conductor that constitute the display unit or conductors that constitute the display-unit-driving wiring lines.

Claims

1. A display device, comprising:

at least one substrate provided with a display unit and display-unit-driving wiring lines, at least one of the display unit and the display-unit-driving wiring lines including a conductor layer formed on the substrate from a conductive material in a conductor forming process; and

a radio communication device having a communication integrated-circuit unit and an antenna, the communication integrated-circuit unit being mounted on the substrate, at least a part of the antenna being formed on the substrate in the same conductor layer and from the same conductive material as the conductor layer of the at least one of the display unit and the display-unit-driving wiring lines, the communication integrated-circuit unit and the antenna being electrically connected to each other by the conductor layer of the at least one of the display unit and the display-unit-driving wiring lines.

2. The display device according to claim 1, the radio communication device having a function of storing information concerning the corresponding display device.

3. The display device according to claim 1, the radio communication device having at least one of a function of writing information in a radio communication device other than the corresponding display device and a function of reading information from the radio communication device other than the corresponding display device.

4. The display device according to claim 1, the radio communication device having a function of storing at least one of information written in a radio communication device other than the corresponding display device and information of the radio communication device other than the corresponding display device.

5. The display device according to claim 1, an external substrate for driving the display unit electrically connected to the substrate and a conductor provided on the external substrate electrically connected to the antenna formed on the substrate so that the conductor on the external substrate and the antenna on the substrate include an entire antenna, and

the communication integrated-circuit unit is mounted on the external substrate.

6. The display device according to claim 5, the external substrate including of a plurality of external substrates, and the communication integrated-circuit unit is mounted on one of the plurality of external substrates.

7. The display device according to claim 1, the communication integrated-circuit unit includes of a plurality of semiconductor elements formed on the substrate.

8. The display device according to claim 7, the plurality of semiconductor elements that include the communication integrated circuit has the same structure as another semiconductor element formed on the substrate.

9. The display device according to claim 1, at least a part of the antenna formed on the substrate in a region excluding the display unit.

10. The display device according to claim 9, at least a part of the antenna formed along one peripheral edge of the substrate.

11. The display device according to claim 1, the conductor formed above the antenna on the substrate to include the corresponding display device does not overlap the antenna in plan view.

12. An electronic apparatus, comprising:

the display device according claim 1.

13. An electronic apparatus, comprising:

the display device according to claim 1 and a charging unit electrically connected to the antenna of the radio communication device through a rectifying unit to control the flow of the current in one direction, the antenna is used as an antenna to charge power into the charging unit from the outside using electromagnetic induction.

14. The electronic apparatus according to claim 13, further comprising:

another apparatus excluding the display device electrically connected to the charging unit,

the other apparatus driven by the power charged in the charging unit.

15. An electronic apparatus, comprising:

a first display device and a second display device,

the second display device being the display device according to claim 1 and provided on the surface opposite to the surface on which the first display device is provided.

16. The electronic apparatus according to claim 15, the first display device displaying at least one of information written in a radio communication device other than the corresponding display device by the second display device and information read from the radio communication device other than the corresponding display device by the second display device.

17. The electronic apparatus according to claim 15, the first display device storing and displaying at least one of information written in a radio communication device other than the corresponding display device by the second display device and information read from the radio communication device other than the corresponding display device by the second display device.

18. An electronic apparatus, comprising:

the display device according to claim 1, the display device displaying at least one of the information written in a radio communication device other than the corresponding display device and the information read from the radio communication device other than the corresponding display device.

19. An electronic apparatus, comprising:

the display device according to claim 1, the display device storing and displaying at least one of information written in a radio communication device other than the corresponding display device and information read from the radio communication device other than the corresponding display device.

20. The electronic apparatus according to claim 18, at least a part of one surface and the other surface of the display device exposed to the outside.

21. The electronic apparatus according to claim 18, the display device being a display device capable of displaying images on any of the one surface and the other surface of the display device.

22. The electronic apparatus according to claim 12, the radio communication device other than the corresponding display device reading information concerning the corresponding electronic apparatus from the radio communication device and writing information concerning the corresponding electronic apparatus in the radio communication device as data.

23. The electronic apparatus according to claim 22, the radio communication device driven by radio waves input to the antenna from the outside.

24. The electronic apparatus according to claim 22 further comprising:

a power source unit electrically connected to the radio communication device,

the radio communication device being driven by the power of the power source unit.

25. The electronic apparatus according to claim 12, the information concerning the corresponding electronic apparatus being rewritten in the radio communication device as data.

26. The electronic apparatus according to claim 25, the radio communication device includes a writing unit to write information concerning the corresponding electronic apparatus as data, and

a rewritable region and a non-rewritable region are provided in the writing unit.

27. The display device according to claim 1, wherein the communication integrated-circuit unit and the antenna are formed in the same process.

28. The display device according to claim 1, the conductor layer that electrically connects the communication integrated-circuit unit and the antenna including a layer that is different from a conductor that configures at least a portion of the antenna.