Electronic apparatus provided with organic electroluminescent device

• US 20020097194A1
• Filed: 01/16/2002
• Published: 07/25/2002
• Est. Priority Date: 01/17/2001
• Status: Active Grant

• Current Assignee: Element Capital Commercial Company Pte. Ltd.
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Uchida, Masahiro, Nakanishi, Hayato
• Granted Patent: US 7,019,714 B2
• Time in Patent Office: Days
• US Class Current: 345/3.1
• CPC Class Codes: G06F 3/1423 controlling a plurality of local displays, e.g. CRT and flat panel display
• CPC Class Codes: G06F 3/147 using display panels
• CPC Class Codes: G09G 2330/022 in absence of operation, e.g. no data being entered during a predetermined time

Abstract

The invention provides an electronic apparatus that provides an organic electro luminescent device and a liquid crystal device. In a mobile terminal electronic apparatus such as an electronic apparatus having a device for displaying, and in particular, a mobile telephone that has power consumption restrictions, provides an organic electro luminescent device, which makes possible fine display having superior visibility, and a transflective or reflective liquid crystal display device, which severely reduces power consumption, and thereby allows achieving low power consumption while not in use, and allows selective use of displays depending on the type of information, such as video or still images, and the condition of the remaining battery charge, or the like.

Claims

1. An electronic apparatus providing a device for displaying comprising:

an organic electroluminescent device for displaying comprising organic electroluminescent elements in which at least one organic light emitting layer is interposed between an anode and a cathode; and

a liquid crystal device for displaying.

2. An electronic apparatus according to claim 1, said electronic apparatus being a mobile terminal.

3. An electronic apparatus according to claim 1, when not manipulated for a predetermined period or during stand-by, said organic electroluminescent device being in a non-display mode, and only said liquid crystal device being in a display mode.

4. An electronic apparatus according to claims 1, said organic electroluminescent device being driven by an active matrix driving method.

5. An electronic apparatus according to claims 1, said liquid crystal device being a transflective liquid crystal display device.

6. An electronic apparatus according to claims 1, said liquid crystal device being a reflective liquid crystal display device.

7. An electronic apparatus according to claims 1, said liquid crystal device being driven by a simple matrix driving method.

8. An electronic apparatus according to claims 1, said liquid crystal device being driven by an active matrix driving method.

9. An electronic apparatus according to claims 1, said liquid crystal device being a monochrome display.

10. An electronic apparatus according to claims 1, said liquid crystal device being a color display.

11. An electronic apparatus according to claims 1, an organic electroluminiscent device is used as a light source for said liquid crystal device.

12. An electronic apparatus according to claims 1, further comprising a mean for switching the devices for displaying between said liquid crystal device and said organic electroluminescent device.

13. An electronic apparatus according to claims 1, further comprising a mean to suspend the display by said organic electroluminescent device and to switching automatically the display by said liquid crystal device, when the remaining charge of the battery provided in said electronic apparatus becomes a predetermined remaining charge.

14. An electronic apparatus according to claims 1, further comprising a mean to switch device for displaying from said organic electroluminescent device to said liquid crystal device when said organic electroluminescent display is not manipulated for a predetermined period while said organic electroluminescent display is continuously driven.