Apparatus and method for displaying images

• US 6,486,890 B1
• Filed: 12/17/1999
• Issued: 11/26/2002
• Est. Priority Date: 07/10/1995
• Status: Expired due to Fees

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Nozue, Tatsuhiro, Harada, Hiromi, Kayashima, Terumasa
• Primary Examiner(s): Brier, Jeffrey
• Assistant Examiner(s): CUNNINGHAM, GREGORY F
• Application Number:
  US09/466,569
• Time in Patent Office: 1,075 Days
• Field of Search: 345/87, 345/92, 345/530, 345/660, 345/901, 345/903, 345/905
• US Class Current: 345/660
• CPC Class Codes: G06F 1/1601 Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays constructional details related to flat displays integrated in a portable computer, e.g. laptop, handheld computer G06F1/1637; constructional details related to television receivers H04N5/64
• CPC Class Codes: G06F 1/1609 to support filters or lenses
• CPC Class Codes: G06F 1/1616 with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
• CPC Class Codes: G06F 1/1641 the display being formed by a plurality of foldable display components G06F1/1647 takes precedence
• CPC Class Codes: G06F 1/1643 the display being associated to a digitizer, e.g. laptops that can be used as penpads details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615
• CPC Class Codes: G06F 1/1671 Special purpose buttons or auxiliary keyboards, e.g. retractable mini keypads, keypads or buttons that remain accessible at closed laptop G06F1/1666 takes precedence
• CPC Class Codes: G06F 2200/1613 Supporting arrangements, e.g. for filters or documents associated to a laptop display
• CPC Class Codes: G06F 2200/1614 Image rotation following screen orientation, e.g. switching from landscape to portrait mode
• CPC Class Codes: G06F 2203/04806 Zoom, i.e. interaction techniques or interactors for controlling the zooming operation
• CPC Class Codes: G06F 3/0481 based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
• CPC Class Codes: G06F 3/14 Digital output to display device ; Cooperation and interconnection of the display device with other functional units
• CPC Class Codes: Y10S 345/901 Electronic book with display

Abstract

An image display device includes a main body having a display unit with a first display screen A and a display unit with a second display screen B and a link 56 for merging the two display screens to one. The two play units are opened and closed at the link so that display screens are folded over each other for carrying like a book, and they are opened in a use mode to permit the recognition of the display image.

Claims

1. An image display device for mounting a record medium having column image information recorded thereon as electronized compressed image data and displaying the image data of said record medium in accordance with display mode of a console unit on a display unit including first and second display screens, comprising:

a control unit for displaying a page image of a selected image display screen on the display screen of the selected one at a magnified scale when a dual-screen independent display mode in which a different desired page on each of the first and second display screens of said display unit is displayed in accordance with said console unit (when the display mode is the dual-screen independent display mode) is set and a mode to selectively display with magnification one of the pages of the first and second display screens is set in the dual-screen independent display mode.

4. An image display device according to claim 1 wherein reference points for the magnification of the display screen are provided at corners of the first and second display screens of said display unit to allow the magnification around the reference points.

5. An image display device according to claim 1 wherein nine reference points for the magnification of the display screens are arranged in the first and second display screens, respectively, to cover the entire area of a respective screen.

2. An image display device for mounting a record medium having column image information recorded thereon as electronized compressed image data and displaying the image data of said record medium in accordance with display mode of a console unit on a display unit including first and second display screens, comprising:

a control unit for displaying a page image of a selected display screen on the dual-screen of the first and second display screens at a magnified scale and extinguishing the other page from the display screen to allow the setting of the first and second display screens from the dual-screen independent display mode to a dual-screen integral display mode when the dual-screen independent display mode in which a desired page is displayed on the first display screen of said display unit and a page separate from the desired page is displayed on the second display screen is set in accordance with said console unit and a mode to magnify the page image of one of the first and second display screens is set in the dual-screen independent display mode.

3. An image display device for mounting a record medium having column image information recorded thereon as electronized compressed image data and displaying the image data of said record medium in accordance with display mode of a console unit on a display unit including first and second display screens, comprising:

a control unit for displaying a mark indicating a center of a magnified area on the magnification screen, extinguishing the page image of the unmagnified display screen from the display screen, displaying the page image of the magnified display screen on the extinguished display screen with the unmagnified state and displaying the magnified page and the unmagnified page corresponding to the magnified page side by side to allow the observation of the entire image before the magnification when a dual-screen independent display mode in which a desired page is displayed on the first display screen of said display unit and a page separate from the desired page is displayed on the second display screen is set in accordance with said console unit and a mode to magnify the page image of one of the first and second display screens is set in the dual-screen independent display mode.

6. An image display device according to claim 3 wherein 18 reference points for the magnification of the display screens are arranged in the first and second display screens, respectively, to cover the entire display screen when the dual-screen integral display mode to display the first and second display screen as one display screen is set.

7. An image display device comprising:

a first display screen;

a second display screen; and

a control unit for setting nine reference points on the first screen and the second screen for magnification of the display screens, respectively;

wherein the nine reference points are arranged at a center of nine divided areas of the respective display screens to cover an entire area of the respective display screens.