HYBRID DISPLAY

• US 20090256830A1
• Filed: 04/14/2008
• Published: 10/15/2009
• Est. Priority Date: 04/14/2008
• Status: Abandoned Application

• Current Assignee: Sony Ericsson Mobile Communications AB (Sony Group Corp.)
• Original Assignee: Sony Ericsson Mobile Communications AB (Sony Group Corp.)
• Inventors: KLINGHULT, Gunnar, KLEVERMAN, Mats, JENDBRO, Magnus
• Application Number:
  US12/102,327
• Publication Number:
  US 20090256830A1
• Time in Patent Office: Days
• US Class Current: 345/211
• CPC Class Codes: G02F 2201/44 Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers
• CPC Class Codes: G09G 2300/023 Display panel composed of stacked panels
• CPC Class Codes: G09G 2300/046 with an emissive area and a light-modulating area combined in one pixel
• CPC Class Codes: G09G 2320/0613 The adjustment depending on the type of the information to be displayed
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 2360/144 the light being ambient light
• CPC Class Codes: G09G 3/3208 organic, e.g. using organic light-emitting diodes [OLED]
• CPC Class Codes: G09G 3/3648 using an active matrix G09G3/367 - G09G3/3696 take precedence
• CPC Class Codes: H04M 1/22 Illumination; Arrangements for improving the visibility of characters on dials
• CPC Class Codes: H10K 59/13 comprising photosensors that control luminance
• CPC Class Codes: H10K 59/221 Static displays, e.g. displaying permanent logos
• CPC Class Codes: H10K 59/50 OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements

Abstract

A mobile communication device comprising a display assembly comprising a plurality of transistors, where each of the plurality of transistors includes a light-emitting region and a non-light-emitting region and a plurality of organic light emitting diodes (OLEDs), where the plurality of OLEDs are located directly on top of the non-light-emitting regions of the plurality of transistors; and logic configured to select and activate at least one of the plurality of transistors or the plurality of OLEDs to display information.

Claims

1. A mobile communication device, comprising:

a display assembly comprising;

a plurality of transistors, where each of the plurality of transistors includes a light-emitting region and a non-light-emitting region; and

a plurality of organic light emitting diodes (OLEDs), where the plurality of OLEDs are located directly on top of the non-light-emitting regions of the plurality of transistors;

a transistor driving circuit to provide current to the plurality of transistors;

an OLED driving circuit to provide current to the plurality of OLEDs; and

logic configured to;

receive and determine a type of information for display, and

select at least one of the transistor driving circuit or the OLED driving circuit based on the determined type of received information to display the received information.

2. The mobile communication device of claim 1, where the logic is further configured to:

select the OLED driving circuit when the received information for display is determined to be a first type of information; and

select the transistor driving circuit when the received information for display is determined to be a second type of information.

3. The mobile communication device of claim 2, where the first type of information includes at least one of a time of day, or an icon.

4. The mobile communication device of claim 3, further comprising:

a keypad for entering characters.

5. The mobile communication device of claim 4, where the second type of information includes at least one of text messages or characters entered via the keypad.

6. A method, comprising:

providing a display, where the display includes a first display assembly located on top of components of a second display assembly;

receiving information for display;

determining that the received information is one of a first type of information or a second type of information; and

selecting and activating one of the first display assembly or the second display assembly based on a determined information type to display the received information.

7. The method of claim 6, where the first display assembly includes a plurality of organic light emitting diodes (OLEDs).

8. The method of claim 7, where the second display assembly includes a plurality of transistors.

9. The method of claim 8, where the plurality of OLEDs are located on top of a non-light-emitting portion of the plurality of transistors.

10. The method of claim 6, where the selecting and activating one of the first or second display assemblies based on the determined information type to display the received information further includes:

selecting the first display assembly when the received information is determined to be the first type of information; and

selecting the second display assembly when the received information is determined to be the second type of information.

11. The method of claim 10, where the first type of information includes an icon.

12. The method of claim 11, where the second type of information includes information other than an icon.

13. The method of claim 11, where the first display assembly includes a pattern of a plurality of OLEDs arranged to form the icon.

14. The method of claim 13, where the icon includes at least one of a message icon, a signal strength icon or a battery power icon.

15. The method of claim 10, where the first type of information includes a time of day.

16. The method of claim 8, where the first display assembly does not require backlighting.

17. A device, comprising:

a display assembly comprising;

a plurality of transistors, where each of the plurality of transistors includes a light-emitting region and a non-light-emitting region; and

a plurality of organic light emitting diodes (OLEDs), where the plurality of OLEDs are located directly on top of the non-light-emitting regions of the plurality of transistors; and

logic configured to;

select and activate at least one of the plurality of transistors or the plurality of OLEDs to display information.

18. The device of claim 17, where the logic is further configured to:

select and activate the plurality of OLEDs when the information is an icon or time of day information; and

select and activate the plurality of transistors when the information is video information or character information.

19. The device of claim 18, where the plurality of OLEDs are arranged in a plurality of groups, where each group forms a pattern that is associated with an icon.

20. The device of claim 19, where the logic is further configured to:

select and activate the plurality of OLEDs and the plurality of transistors when bright ambient light conditions are determined.