Electronic device

• US 9,189,034 B2
• Filed: 07/09/2013
• Issued: 11/17/2015
• Est. Priority Date: 03/25/2013
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: Ito, Naoyuki, Itotani, Takehiro
• Primary Examiner(s): Dharia, Prabodh M
• Application Number:
  US13/937,824
• Publication Number:
  US 20140285446A1
• Time in Patent Office: 861 Days
• Field of Search: 345 76- 88, 345/102, 345171-184, 345/214, 345690-692, 361/152, 361/692, 361/679.32, 701/484, 708/100
• US Class Current: 1/1
• CPC Class Codes: G06F 1/1643 the display being associated to a digitizer, e.g. laptops that can be used as penpads details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615
• CPC Class Codes: G06F 1/1696 the I/O peripheral being a printing or scanning device
• CPC Class Codes: G06F 1/1698 the I/O peripheral being a sending/receiving arrangement to establish a cordless communication link, e.g. radio or infrared link, integrated cellular phone details of antennas disposed inside a computer H01Q1/2266
• CPC Class Codes: G09G 5/006 Details of the interface to the display terminal specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04

Abstract

An electronic device includes a casing to accommodate a display panel having front and back surfaces, a portion of the display surface being an effective display area; an antenna, disposed in back of a closed area of the effective display area, oriented to exhibit a directivity from the back of the effective display area toward the front surface, and to perform near field communication with an external terminal in a non-contact manner when the external terminal is close to the display panel; a scanner, disposed in the back of the effective display area, having a digitizer scanning film for accepting an input of a digitizer pen, to detect a position of the digitizer pen on the front surface of the display panel; and a shielding plate disposed in back of the scanner and the antenna such that the antenna is disposed between the digitizer scanning film and the shielding plate.

Claims

1. An electronic device, comprising:

a casing configured to accommodate;

a display panel having a front surface and a back surface, the front surface being a display surface, a portion of the display surface being an effective display area;

an antenna, disposed in back of a closed area of the effective display area, the antenna being oriented so as to exhibit a directivity from the back of the effective display area toward the front surface, the antenna configured to perform near field communication with an external terminal in a non-contact manner when the external terminal is close to the display panel;

a scanner, disposed in the back of the effective display area, the scanner being configured to have a scanning film on a front surface, the scanning film being a digitizer scanning film for accepting an input of a digitizer pen, and to detect a position of the digitizer pen on the front surface of the display panel;

a shielding plate disposed in back of the scanner and the antenna such that the antenna is disposed between the digitizer scanning film and the shielding plate, and having a ground connection to the scanner, and

the display panel, the antenna, the scanner, and the shielding plate being layered in the casing.

2. The electronic device according to claim 1, wherein the scanner is layered over the display panel such that the scanner is closer to the display panel than the antenna is.

3. The electronic device according to claim 1, further comprising a signal processing section, disposed in back of the shielding plate, configured to process a signal communicated by the antenna by near field communication.

4. The electronic device according to claim 1, further comprising a CPU configured to perform control based on a position of the digitizer pen detected by the scanner, wherein

the CPU cancels a portion of the control based on the position of the digitizer pen detected by the scanner, when the antenna performs near field communication with the external terminal.

5. The electronic device according to claim 1, further comprising a CPU configured to perform processing for an image to be displayed on the display panel, based on a position of the digitizer pen detected by the scanner, wherein

the CPU performs control so as not to perform the processing for the image to be displayed on the display panel based on the position of the digitizer pen detected by the scanner, when the antenna performs near field communication with the external terminal.

6. The electronic device according to claim 1, wherein the antenna is an RFID module.