Portable display device with at least two display screens controllable collectively or separately
First Claim
Patent Images
1. A display device, comprising:
- document memory means for storing documents to be displayed;
at least two display screens for displaying the documents stored in the document memory means; and
display control means for controlling displays of the documents on the display screens to be in a predetermined linked mode in which the displays on the display screens are linked together to display consecutive pages of a document and in a predetermined separate mode in which the displays on the display screens are independent from each other such that any page of the document can be displayed on any display screen,wherein the linked mode further includes an all sides switching mode in which each page displayed on each one of the display screens is simultaneously switched to another page and a one side switching mode in which only one page displayed on one of the display screens is switched at a given time while other displayed pages are unchanged.
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Abstract
A portable display device capable of presenting a document in an easy to read format, in which a simultaneous display of different parts of the document in reasonable sizes can be made, by a simple operation of the device. The display device comprises a document memory for storing documents to be displayed, at least two display screens for displaying the documents stored in the document memory means, and a display control unit for controlling displays of the documents on the display screens to be in a linked mode in which the displays on the display screens are linked together and in a separate mode in which the displays on the display screens are independent from each other.
394 Citations
22 Claims
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1. A display device, comprising:
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document memory means for storing documents to be displayed; at least two display screens for displaying the documents stored in the document memory means; and display control means for controlling displays of the documents on the display screens to be in a predetermined linked mode in which the displays on the display screens are linked together to display consecutive pages of a document and in a predetermined separate mode in which the displays on the display screens are independent from each other such that any page of the document can be displayed on any display screen, wherein the linked mode further includes an all sides switching mode in which each page displayed on each one of the display screens is simultaneously switched to another page and a one side switching mode in which only one page displayed on one of the display screens is switched at a given time while other displayed pages are unchanged. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A display device comprising:
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a memory for storing documents; at least two display screens coupled to the memory, the display screens displaying documents stored in the memory; and a display control unit coupled to the memory and the display screens, the display control unit controlling the display screens such that the display screens are in one of a predetermined linked mode and a predetermined separate mode, the display screens being linked together when in the linked mode to display consecutive pages and the display screens changing independently when in the separate mode such that any page of the document can be displayed on any display screen, wherein the control unit further controls the display screens when in the linked mode such that the display screens are in one of an all sides switching mode and a one side switching mode, all of the display screens changing simultaneously when in the all sides switching mode and only one display screen changing at any given time when in the one side switching mode.
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22. A method of displaying stored documents on a plurality of display screens comprising the steps of:
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controlling the display screens, via a control unit, such that the display screens are in one of a predetermined linked mode and a predetermined separate mode, the linked mode corresponding to all of the display screens being linked together to display consecutive pages and the separate mode corresponding to the display screens changing independently such that any page of the document can be displayed on any display screen; controlling the display screens, via the control unit, when the display screens are in the linked mode, such that the display screens are further in one of an all sides switching mode and a one side switching mode, the all sides switching mode corresponding to all of the display screens changing simultaneously and the one side switching mode corresponding to only one display screen changing at a given time; displaying the stored documents on the display screens; and changing the displays on the display screens in accordance with the mode of the display screens.
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Specification