DUAL SCREEN DISPLAY FOR MOBILE COMPUTING DEVICE

• US 20140002365A1
• Filed: 03/08/2013
• Published: 01/02/2014
• Est. Priority Date: 06/28/2012
• Status: Active Grant

• Current Assignee: Intermec IP Corporation (Honeywell International Inc.)
• Original Assignee: Intermec IP Corporation (Honeywell International Inc.)
• Inventors: Ackley, Sprague, Maltseff, Paul
• Granted Patent: US 9,245,492 B2
• Time in Patent Office: Days
• US Class Current: 345/168
• CPC Class Codes: G02F 1/167 by electrophoresis
• CPC Class Codes: G06F 3/0219 Special purpose keyboards
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/1423 controlling a plurality of local displays, e.g. CRT and flat panel display
• CPC Class Codes: G06F 3/1438 using more than one graphics controller
• CPC Class Codes: G09G 2300/023 Display panel composed of stacked panels
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 2354/00 Aspects of interface with display user
• CPC Class Codes: G09G 2360/04 Display device controller operating with a plurality of display units
• CPC Class Codes: G09G 3/3406 Control of illumination source illumination devices structurally associated with liquid crystal cells G02F1/1336
• CPC Class Codes: G09G 3/344 based on particles moving in a fluid or in a gas, e.g. electrophoretic devices electrophoretic devices per se G02F1/167
• 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
• CPC Class Codes: H04M 1/22 Illumination; Arrangements for improving the visibility of characters on dials
• CPC Class Codes: H04M 2250/12 including a sensor for measuring a physical value, e.g. temperature or motion telephones including GPS signal receivers H04M2250/10
• CPC Class Codes: H04M 2250/16 including more than one display unit

Abstract

A mobile computing device is disclosed for displaying backlight and diffuse reflecting information. The mobile computing device is configured to include a processor, a first LCD display unit connected to the processor, and a second diffuse reflecting display unit connected to the processor. The mobile computing device is further provided with a display panel interface, such as a mouse or a gravity detecting device like an accelerometer, configured to detect a property for activating a display type. The processor is configured to send information to be displayed to the first display unit or the second display unit or both depending on the display type property detected.

Claims

1. A mobile computing device comprising;

a processor;

a first display unit configured to provide a backlit display connected to the processor;

a second display unit configured to provide a diffuse reflecting display connected to the processor;

a display panel interface configured to detect a property for activating a display type;

wherein the processor is configured to send information to be displayed to the first display unit or the second display unit or both depending on the display type property detected; and

wherein the display panel interface is a sensor and the property detected for activating the display type is a property detected by the sensor.

2. The mobile computing device of claim 1 wherein the diffuse reflecting display is based on e-ink technology.

3. The mobile computing device of claim 1:

wherein the sensor is a touch activated sensor comprising a first touch activated sensor associated with the first display unit and a second touch activated sensor associated with the second display unit,

wherein the touch detected by the touch activated sensor is a touch detected by the first touch activated sensor or a touch detected by the second touch activated sensor, and

wherein the touch detected by the first touch activated sensor activates the first display unit and the touch detected by the second touch activated sensor activates the second display unit.

4. The mobile computing device of claim 1 wherein the display panel interface is a gravity detecting device, and the property detected for activating the display type depends on which of the first display unit or the second display unit is facing in the upward direction.

5. The mobile computing device of claim 1, further comprising a memory configured to store properties of the backlit display and the diffuse reflecting display.

6. The mobile computing device of claim 1, wherein the mobile computing device is taken from the group consisting of a hand held terminal including a scanner configured to scan an image;

a laptop computer; and

a smart phone.

7. The mobile computing device of claim 1, wherein the second display unit is configured to serve as a mouse pad or a mouse.

8. The mobile computing device of claim 1 wherein the first display unit and the second display unit are located on the front side of the mobile computing device.

9. The mobile computing device of claim 1 wherein the second display unit configured to provide diffuse reflecting display overlays the first display unit configured to provide a back lit display.

10. The mobile computing device of claim 1 wherein the first display unit configured to provide a back lit display overlays the second display unit configured to provide a diffuse reflecting display

11. The mobile computing device of claim 1 wherein the second display configured to provide a diffuse reflecting display displays a dashboard of information.

12. The mobile computing device of claim 1:

wherein the mobile computing device further comprises a display part, a keyboard part, and a swivel member connecting the display part to the keyboard part of the mobile computing device to allow the display part of the mobile computing device to rotate about the swivel member when the display part is substantially orthogonal to the keyboard part of the mobile computing device;

wherein the first display unit and the second display unit reside in the display part of the mobile computing device; and

wherein the swivel member allows either the first display unit or the second display unit to face in the direction of the keyboard part of the mobile computing device for use in a first set of operations.

13. The computing device of claim 12 wherein the display unit facing away from the keyboard part of the mobile computing device is used in a first set of operations.

14. The computing device of claim 13:

wherein the display unit facing toward the keyboard part of the mobile computing device is used in a second set of operations.

15. The computing device of claim 14:

wherein the second set of operations that are being performed using the display unit facing toward the keyboard part of the mobile computing device are performed contemporaneously with the first set of operations that are being performed using the display unit facing away from the keyboard part of the mobile computing device.

16. The mobile computing device of claim 14 wherein the display unit facing away from the keyboard part of the mobile computing device is configured to provide the display face of the mobile computing device when the display part is closed onto the keyboard part of the mobile computing device.

17. The mobile computing device of claim 16 wherein the display face of the mobile computing device serves as a tablet when the display part is closed onto the keyboard part of the mobile computing device.

18. A method of displaying information from a mobile computing device, comprising:

detecting a property for activating a display type;

sending information to be displayed to a first display unit configured to provide a backlit display or a second display unit configured to provide a diffuse reflecting display depending on the display type property detected; and

wherein the property detected for activating a display type is a touch.

19. The method of claim 18 comprising the further steps of:

configuring the mobile computing device to include a display part, a keyboard part, and a swivel member connecting the display part to the keyboard part of the mobile computing device to allow the keyboard part of the mobile computing device to rotate about the swivel member when the display part is substantially orthogonal to the keyboard part of the mobile computing device;

configuring the first display unit and the second display unit to reside in the display part of the mobile computing device; and

rotating the first display unit or the second display unit of the display part about the swivel member when the display part is in a position substantially orthogonal to the keyboard part to allow either the first display unit or the second display unit to face in the direction of the keyboard part of the mobile computing device for use in a first set of operations.

20. A computer display comprising:

a first display technology layer, said first layer comprising a diffuse reflective surface;

a second display technology layer, said second layer comprising a backlit surface; and

a means for switching between said first and second layers.