Electro-optical device and electronic apparatus

• US 9,030,449 B2
• Filed: 01/05/2007
• Issued: 05/12/2015
• Est. Priority Date: 02/09/2006
• Status: Expired due to Fees

• Current Assignee: Saturn Licensing LLC (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kobayashi, Shinichi, Kimura, Fusashi, Tsuda, Atsunari, Okuhara, Yuki
• Primary Examiner(s): Nguyen, Jimmy H
• Application Number:
  US11/620,071
• Publication Number:
  US 20070182727A1
• Time in Patent Office: 3,049 Days
• Field of Search: 345/204, 345 7- 9, 345 98-100, 345/104, 345211-213, 455/566, 455346-349, 455/556.1, 455/556.2, 361/679.29
• US Class Current: 345/204
• CPC Class Codes: G09G 2330/06 Handling electromagnetic interferences [EMI], covering emitted as well as received electromagnetic radiation
• CPC Class Codes: G09G 2370/08 Details of image data interface between the display device controller and the data line driver circuit
• CPC Class Codes: G09G 3/3611 Control of matrices with row and column drivers

Abstract

An electro-optical device includes: a display portion that displays images; a power source portion; a converter that has an antenna receiving wireless signals including display controlling signals and image signals from the external based on a wireless transmission method and that converts the wireless signals received from the antenna into wire signals; and a driving circuit that is electrically connected to the power source portion and the converter, respectively, to display the images on the display portion based on the power supplied from the power source portion and the image signals and the display controlling signals output from the converter.

Claims

1. An electronic apparatus comprising:

a display portion including;

(a) a display unit configured to display images;

(b) a first power source configured to supply power;

(c) an external communication radio frequency (RF) antenna configured to transmit and receive signals to and from a base station using a first frequency band;

(d) a first converter which includes a first RF antenna, the first converter being configured to;

(i) intermittently execute reception of packetized wireless signals including display control signals and image signals from outside of the display portion using a wireless transmission method operating in a second frequency band, wherein the first frequency band and the second frequency band are non-overlapping; and

(ii) convert the packetized wireless signals received via the first antenna into clock signals, horizontal synchronizing signals, and vertical synchronizing signals; and

(e) a driving circuit that is electrically connected to the first power source and the first converter, the driving circuit being configured to display the images on the display unit based on;

(i) the power supplied from the first power source;

(ii) the image signals;

(iii) the clock signals;

(iv) the horizontal synchronizing signals; and

(v) the vertical synchronizing signals; and

a body portion including;

(a) a second converter which includes a second RF antenna, the second converter being configured to;

(i) convert the image signals and the display control signals into the packetized wireless signals; and

(ii) intermittently execute transmission of the packetized wireless signals between the body portion and the first converter using the wireless transmission method operating in the second frequency band, wherein the wireless transmission method is a serial transmission method that is only intermittently executed to transmit the packetized wireless signals;

(b) a controlling circuit configured to;

(i) generate the image signals and the display control signals; and

(ii) output the image signals and the display control signals to the second converter; and

(c) a second power source configured to supply power to the second converter and the controlling circuit, wherein the second power source is always electrically isolated from the first power source,

wherein each intermittently executed transmission and reception of packetized wireless signals includes only the image signals, the clock signals, the horizontal synchronizing signals, and the vertical synchronizing signals, and

wherein the body portion and the display portion are configured to be detachably mounted to each other, the body portion is configured to fit inside a pocket of a user, and when the body portion is located inside the pocket of the user and the display portion is located outside the pocket of the user, the display portion is configured to intermittently receive the packetized wireless signals from the body portion located inside the pocket of the user.

2. The electronic apparatus of claim 1, further comprising a wiring board that is connected to the driving circuit, wherein the first converter is provided on the wiring board.

3. The electronic apparatus of claim 1, wherein the first power source comprises:

a power source portion that can be charged by contact-less charging based on electromagnetic induction; and

a power supply circuit that supplies power obtained from the power source portion to the first converter and the driving circuit.

4. The electronic apparatus of claim 1, further comprising:

a plurality of first wires that are electrically connected to the driving circuit to output data signals from the driving circuit;

a plurality of second wires that are electrically connected to the driving circuit and arranged so as to intersect the plurality of first wires to output scan signals from the driving circuit; and

a plurality of pixel electrodes that are arranged at intersections of the plurality of first wires and the plurality of second wires and electrically connected to the plurality of first wires,

wherein the display portion corresponds to a region in which the plurality of pixel electrodes are disposed.

5. The electronic apparatus of claim 1, wherein:

(a) the first converter is configured to;

(i) convert wire signals from the driving circuit into second wireless signals; and

(ii) transmit the second wireless signals to the outside of the display portion via the first RF antenna; and

(b) the second converter is configured to;

(i) receive the second wireless signals via the second RF antenna;

(ii) convert the second wireless signals into second wire signals; and

(iii) output the second wire signals to the controlling circuit.

6. The electronic apparatus of claim 1, wherein the packetized wireless signals transmitted by the second converter only include the image signals and the display control signals.

7. The electronic apparatus of claim 1, wherein the display unit includes a display region where the images are displayed, and

the first power source is provided in a region of the display unit that does not overlap the display region.

8. The electronic apparatus of claim 7, wherein the display unit is a transmission type display.

9. The electronic apparatus of claim 7, wherein the display unit is a reflective type display.

10. The electronic apparatus of claim 1, wherein the display unit includes a display region where the images are displayed, and

the first power source is provided in a region of the display unit that overlaps the display region.

11. The electronic apparatus of claim 1, wherein the first power source and the second power source are each configured to be charged by a contact-less type charging method.