INFORMATION DISPLAY HAVING SEPARATE AND DETACHABLE UNITS

• US 20090195496A1
• Filed: 04/08/2009
• Published: 08/06/2009
• Est. Priority Date: 12/16/2003
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: KOYAMA, Fumio, KODAMA, Yoshiyuki, TANAKA, Dai
• Granted Patent: US 8,421,744 B2
• Time in Patent Office: Days
• US Class Current: 345/107
• CPC Class Codes: G09G 2380/02 Flexible displays
• CPC Class Codes: G09G 3/34 by control of light from an independent source
• CPC Class Codes: G09G 5/003 Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto specific for a CRT G09G1/165; for a flat panel G09G3/2092
• 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 information display has an information carrier including a storable display panel separate from a processing unit including a battery, and where there is a need to perform a process such as updating or manipulating information displayed on the display panel, it is possible to perform a desired process by connecting the processing unit to the information carrier.

Claims

1. An information display system comprising:

an information display unit which includes a memory-type display;

a processing unit which instructs rewriting of display contents to the information display unit; and

a power supply unit which supplies power to the information display unit and inputs instruction information from the processing unit.

2. The information display system according to claim 1,

wherein while rewriting the display contents of the information display unit, power is supplied from the power supply unit to the information display unit.

3. The information display system according to claim 2,

wherein the information display unit has a first connection section, the power supply unit has a second connection section, and the first connection section and the second connection section are electromagnetically connectable each other.

4. The information display system according to claim 3,

wherein the first connection section has a first coil that inputs and outputs the instruction information and a second coil that inputs the power, the second connection section has a third coil that inputs and outputs the instruction information and a fourth coil that outputs the power, and the first coil and the third coil are electromagnetically connectable each other and the second coil and the fourth coil are electromagnetically connectable each other.

5. The information display system according to claim 1,

wherein the information display unit includes a storage section holding data as a nonvolatile display object.

6. The information display system according to claim 1,

wherein the processing unit is a pen-shaped operating instrument.

7. The information display system according to claim 3,

wherein the power supply unit has multiple second connection sections for connecting to multiple information display units.