JP4341360B2 - Display device - Google Patents

Description

  The present invention relates to a display device, and more particularly to a display device using a plurality of flexible display displays.

  In recent years, a display device using a flat display device such as a liquid crystal display (LCD) or a plasma display panel (PDP) is thinner and lighter than a cathode ray tube (CRT) of the same size. Public display boards and monitor display devices in conference spaces are becoming popular.

However, as the demand for thin and large-screen display advances, the space as a display area cannot be ignored even if it is thin. In response to this type of demand, many methods for projecting onto a large screen using a projection type projector or the like have been proposed.
When using the above-mentioned projection type projectors, there are various obstacles and inconveniences when projecting in a large size, such as the projector installation space, the distance to enlarge and project on the screen, and obstacles can not be placed between them. Has occurred.

On the other hand, a display device using a flat display device having a relatively small display size is widely used as a display device for various portable devices such as a notebook PC, a PDA, a mobile phone, a car navigation system, and an electronic book player. ing. A demand for this type of portable device is that it is small and light and can be easily carried, and a form that is easy to store in a space-saving manner is desired.
A display device has been proposed that solves such a form that can be stored in a space-saving manner as much as possible during carrying (see, for example, Patent Documents 1 to 3).
In addition, notebook information processing devices and display devices that carry electronic books have been proposed (see, for example, Patent Documents 4 to 6).
The inventions described in Patent Documents 1 to 3 use a flexible display as a display panel. In Patent Documents 1 and 2, the display can be stored on a roll.
The inventions described in Patent Documents 4 to 6 use a plurality of flat displays and paper-like media, and can be handled with the same feeling as a paper book while turning pages.

Japanese Patent Laid-Open No. 11-272205 JP 2002-182582 A JP 2003-43955 A JP-A-6-274458 JP 2003-58081 A JP 2003-58544 A

By the way, the proposals described in Patent Documents 1 and 2 are suitable for displaying a single screen, but when a plurality of screens, particularly screens having different input formats, are input, for example, broadcast signals and document information, When you want to see map information at the same time, every time multiple signals are received, the receiver side converts the format to synthesize multiple screens, or enlarge / reduce processing to display multiple screens on one display screen. There is a problem that the processing circuit becomes complicated.
There is also a problem that if the number of screens to be displayed at the same time increases, such as when viewing a plurality of document screens at the same time, the display area per screen becomes small and difficult to see. Further, when a plurality of sets of display devices are used to view a plurality of screens, not only portability and convenience are impaired, but also new problems such as an increase in installation location occur.

In the proposals described in Patent Documents 3 to 6, although depending on the display area per page, if the display area per page is made as large as possible to make it easy to see, the device of at least the size of the display area is used. Therefore, there may be a problem that it becomes unsuitable for portability.
Moreover, there is a possibility that the usage pattern is limited to displaying book information. Further, when the user wants to view information on three or more screens at the same time, he / she turns the page or looks at two spread pages.

  The present invention has been made in view of the above points, and an object thereof is to provide a display device that can improve portability, operability, and convenience by using a plurality of flexible display displays. .

In order to solve the above-described problems, the present invention provides display devices described in 1) to 5) described below.
1) At least a part is flexible, and a plurality of display display units (123a, 123b, 123c) for displaying an image based on a display signal and the plurality of display display units are pulled out in the same direction. And a display control unit (113a, 113b, 113c) for controlling display of the display display unit, wherein the display control unit includes the storage unit (103) for storing the plurality of display display units. When the plurality of display display units are pulled out in the same direction from each other, the amount of the plurality of display display units extracted from the storage unit is detected, and the plurality of display displays pulled out is detected. Of the first display display unit, the first display display unit, and the first display display unit. When the display display unit that is pulled out with the second pull-out amount smaller than the protrusion amount is used as the second display display unit, the surface of the first display display unit viewed from the second display display unit side is A first displayable area corresponding to the extracted amount and a surface of the second display display unit are set as a second displayable area corresponding to the extracted amount, and the first displayable A display device that controls to prevent an image from being displayed in an area of the area where the second display unit overlaps.
2) The display control unit controls to display an image having a size corresponding to a region where the second display display unit does not overlap in the first displayable region. Display device.
3) The display control unit further includes an enlargement / reduction display unit that enlarges / reduces an image in accordance with an area of the first displayable area where the second display display unit does not overlap. Or 2).
4) The display according to 1) or 2), wherein the display control unit further includes a signal processing circuit that supplies a plurality of display signals having different input formats to the plurality of display display units. apparatus.
5) When the storage unit is a set of display display units in a state in which the plurality of display display units are arranged in a direction orthogonal to the surface of the display display unit, the display display unit is within the plane of the display display unit. The display device according to any one of 1) to 4), wherein a plurality of sets of the display display units are accommodated in a direction orthogonal to a direction in which the display is pulled out.

According to the “display device” of the present invention, it is possible to store all of the plurality of display displays connected to the control unit inside the display device storage unit, so that the display area of each display display can be set large. In addition, since the display device can be reduced in size and weight, a mobile terminal excellent in portability and convenience can be realized.
In addition, since a plurality of display displays are prepared, it is possible to simultaneously view a plurality of images having different input formats such as broadcast signals, document information, and map information, and there is no need to synthesize each image and convert the format. Therefore, the processing circuit is simplified, and high-quality images can be displayed on a large display screen that has been subjected to optimum image processing.

  Hereinafter, the best mode for carrying out the invention of the display device according to the present invention will be described with reference to preferred embodiments.

1 and 2 are schematic configuration diagrams of a display device applied to the first embodiment. The display device according to the first embodiment is a configuration example that assumes a form of displaying book data such as an electronic book that is mainly carried around and used.
FIG. 1 shows a state where three display displays 120 having flexible flexibility are accommodated in the display device 100. The display device 100 includes a display control unit and signal processing unit 110 for each of the display displays 120, and a display drawer unit 130 for pulling out each display display 120. The display control unit and signal processing unit 110 is configured to rotate within the display device 100 and to wind up the three display displays 120 in common. The display display may be monochrome or color.

  FIG. 2 shows a state in which the display screens of the three display displays 120 in the display device 100 are pulled out, and shows a form in which book data is actually displayed as an electronic book. The display device 100 displays a screen with a built-in rechargeable battery so that it can be used as a mobile terminal as a portable device. The book data may be taken in by inserting a memory card, a disk or a card-like recording medium into the display device 100, or may be in a form in which the data transmitted by the communication device is downloaded and taken in.

By adopting the configuration of the display device 100 as shown in FIGS. 1 and 2, when the display display 120 is housed, it can be made smaller than a conventional spread electronic book. In addition, since the screen size when the display display 120 is pulled out can be increased, the characters of the book data can be displayed in a large size, so that the screen can be easily viewed.
Furthermore, since a plurality of display displays are used, data of a plurality of pages can be displayed at the same time, which is convenient when comparing with other pages.
When displaying multiple pages, it is not always necessary to display the pages in page order. The reference page is always displayed, and the page to be referenced apart from the reference page may be displayed on the display display of the next page. .

3 to 5 are diagrams showing a schematic configuration of a display device applied to the second embodiment. The display device according to the second embodiment is a configuration example that assumes a mode of receiving a two-screen display while being portable.
FIG. 3 shows a state in which two display displays 121a and 121b having flexibility and another display display 140 having no flexibility are accommodated in the display device 101. The display device 101 includes display control units and signal processing units 111a and 111b for the display displays 121a and 121b, display drawer units 131a and 131b for pulling out the two display displays 121a and 121b, and display on the display display 140. The signal processing unit 150 includes a control unit and a signal processing unit. The display control unit and the signal processing units 111a and 111b rotate in the display device main body 101, and have a structure that can wind up the two display displays 121a and 121b, respectively. The display display may be monochrome or color.

FIG. 4 shows a state in which the display screens of the three display displays 121a, 121b, and 140 in the display device 101 are drawn out, and shows a form in an actual use situation. The display device 101 has a built-in rechargeable battery and displays a screen so that it can be used as a mobile terminal as a mobile device such as a mobile phone. When used as a display device such as a car navigation system, the screen may be displayed by connecting a power source such as an in-vehicle battery.
Further, operation buttons 160 are provided on the surface of the display device 101 so that input image selection, video adjustment, menu operation, and the like of the display display can be performed.

When actually used as a car navigation display device, as shown in FIG. 5, the display displays 121a and 121b are stretched and held on the back surfaces of the two flexible display displays 121a and 121b. The stretching and holding means 170a and 170b are provided and used. Although not shown, a configuration may be adopted in which the display device 101 is fixedly used by providing device main body holding means for inserting and holding the display device 101 in the car navigation main body or the upper part of the dashboard.
In addition, since the display display may be able to display both front and back sides, the stretch holding means 170a and 170b are not necessarily required. In this case, instead of the stretch holding means 170a and 170b, a fixed holding means for holding the display displays 121a and 121b in a stretched state may be provided on the car navigation body or the upper part of the dashboard.

As an actual usage example, in FIG. 4, in the case of a right-hand drive vehicle, a display screen 121a close to the left passenger seat side displays a TV broadcast screen such as digital broadcasting, and a display display close to the right driver seat side. In 121b, a map screen for car navigation is displayed and used.
The display display 140 at the top of the display body 101 is used to display auxiliary information such as TV channel information, character information, clock display, and the current city name.

  In addition to the car navigation display device, a mobile terminal such as a mobile phone may be used by simultaneously displaying a television broadcast display and book data, etc., as described above. The display device may be used commonly for a plurality of purposes, such as using the display device for a cellular phone and using the same main body as a display device for car navigation in the vehicle.

  As another example of use, when a large number of operation buttons 160 are provided, it can be used as a display for PDA or notebook computer applications. Further, for example, if each key of the keyboard is displayed with the display display 121a as a monitor screen and the display display 121b as a touch panel screen, a portable personal computer that is smaller and more portable than a notebook personal computer can be realized. It is.

3 to 5, the display displays 121a, 121b, 140 can be reduced in size and weight when stored, and can be easily carried and used. In addition, since it is possible to increase the screen size in the direction in which the display displays 121a, 121b, and 140 are pulled out, the left and right two-screen display of the same size is easy to see. Multiple images can be viewed simultaneously.
Further, conventionally, when two screens are displayed on one display display, each image is reduced or converted in format, so that the processing circuit is complicated and the screen is difficult to see. The device does not reduce the size of each image and does not convert the format. Therefore, the processing circuit does not have to be complicated, and a high-quality image can be viewed on a large display screen that has been subjected to optimum image processing. It becomes possible.

  3 to 5, the number of flexible display displays is two. However, the number of display displays is not limited to this. For example, as shown in FIG. The number of display displays having flexibility may be eight. As described above, by increasing the number of flexible display displays, it is possible to increase the above-described plural purposes. For example, the display device as shown in FIG. 6 can be conveniently used not only as a mobile terminal such as a mobile phone or a display device for car navigation but also as an electronic book.

7 and 8 are diagrams showing a schematic configuration of a display device applied to the third embodiment. The display device according to the third embodiment is a configuration example that assumes a mode of receiving a maximum three-screen display with a large screen.
FIG. 7 shows a state in which three display displays 123a, 123b, and 123c having flexible flexibility are stretched in the display device 103. FIG. When the three display displays 123a, 123b, and 123c are completely stored, the size of the display device 103 alone is obtained.
The display device 103 includes display control units and signal processing units 113a, 113b, and 113c of the display displays 123a, 123b, and 123c, and display drawer units 133a, 133b, and 133c for pulling out the three display displays 123a, 123b, and 123c, respectively. And a signal processing unit 153. The display control unit and signal processing units 113a, 113b, and 113c rotate in the display device 103, and have a structure that can wind up the three display displays 123a, 123b, and 123c, respectively. The display display may be monochrome or color.

FIG. 8 shows a state in which the display screens of the three display displays 123a, 123b, and 123c in the display device 103 of FIG. 7 are pulled out, and shows a form in an actual usage state. In the figure, the lengths of the three display displays are different from each other, but can be extended to the same length. The signal processing unit 153 and the signal input unit 154 may be connected by a signal cable, or may transmit display data wirelessly.
This figure assumes a usage pattern such as a conventional projector screen. The conventional projector screen was only intended to project the signal sent from the projector onto the screen. However, in the display device of the present invention, the screen itself is a screen that can be self-luminous and includes a plurality of screens. Since a screen is provided, it is possible to simultaneously display a plurality of display signals and projection screens having different input formats, which has been impossible in the past, in a nearby place.

  In the figure, a display screen that is divided into upper and lower parts is shown. However, as an actual usage example, a usage form such as simultaneously displaying a presentation screen for three people is conceivable. In the past, presentations were made by connecting a personal computer to a projector for each person, but in the case of the display device 103, all personal computer outputs for three persons are connected to the signal input unit 154, and three display screens are displayed. Can be displayed simultaneously on the top. This is effective when you want to view multiple people's materials at the same time, such as in a panel discussion. In addition to a personal computer screen, a television broadcast such as a digital broadcast, a playback screen of communication media, a video, a recording medium such as a DVD, and the like can be simultaneously displayed. You may use as a screen which projects materials, such as OHP, partially.

  As shown in the figure, when the display is divided into the upper and lower divided areas, the display area 123a is stored in the display device 103 in the upper two-third area, and the display area is displayed in the lower third. It has become. In the display display 123b, the upper third region is stored in the display device 103 and the lower second third is a displayable region, and the display display 123c is stored in the display device 103. Since all are drawn out, all are displayable areas.

However, regarding the display display 123b, it is necessary to display in a region below the portion of the displayable region that overlaps the display display 123a. Moreover, regarding the display display 123c, it is necessary to display in a region below the portion of the displayable region that overlaps the display display 123b.
In this way, when the display is divided into three upper and lower regions and simultaneously displayed, how long or how many other display devices overlap in the displayable region as viewed from the display side. And the display control unit and the signal processing units 113a, 113b, and 113c process the display signal so that the other display is displayed in an area that does not overlap.

In addition, when at least the display displays 123a and 123b are transparent displays, the present invention is not limited to the above. A background image or the like may be displayed on the display displays 123b and 123c to overlap the display images.
In addition, when the display surfaces of the display displays 123a, 123b, and 123c can be displayed on both front and back surfaces, are there other display displays on the front side of the display surface on the front side display surface and the back side display surface, respectively? It is preferable that the display control unit and the signal processing units 113a, 113b, and 113c process the enlargement / reduction of the display signal so that the display area is displayed in a non-overlapping area.

  By using the display device 103 as in the third embodiment, the display displays 123a, 123b, and 123c can be reduced in size when stored, and the space when the display device is not used can be used effectively by being provided on the ceiling or the like. . When the display device is installed on the ceiling and used, the display displays 123a, 123b, and 123c can be automatically pulled out or automatically controlled by controlling the length of pulling out when the lengths are different from each other. You may be able to pull it out with.

  In addition, since the screen size in the direction in which the display displays 123a, 123b, and 123c are pulled out can be set to any length, when it is desired to view a plurality of materials at the same time, the display length is adjusted on each display display as shown in FIG. Multi-screen display. In this case, even if there are a plurality of images having different input formats, it is not necessary to perform format conversion when combining the images, so that the processing circuit does not have to be complicated and optimum image processing is performed. High quality images can be displayed simultaneously.

In FIG. 7 and FIG. 8, three flexible display displays are used, but the present invention is not limited to this, and other display displays may be used. Further, the display display does not have to be drawn from the entire width of the display device 103. For example, as shown in FIG. It is good also as a structure where a display display is pulled out 3 each from.
Further, the number of display displays drawn out on the left half and the right half may be different. With the configuration as shown in FIG. 9, it is possible to simultaneously browse a maximum of six types of materials, broadcast / recorded video, and the like having different input formats.

  In Example 3 described above, a usage pattern such as a self-luminous roll screen is assumed, but the present invention is not limited to this, and the display device main body is miniaturized for a mobile terminal as a portable device. May be. Moreover, it is good also as a system containing the content described in Example 1 or Example 2. FIG.

  In the first to third embodiments, a case where a plurality of images, that is, so-called multi-screen display is not performed in one display display has been described. However, the present invention is not limited to this, and the processing circuit is complicated but convenient. In the case of pursuing characteristics and the like, a configuration may be adopted in which a plurality of images are combined and format-converted and displayed on a single display. An optimal system may be configured as appropriate according to applications such as portability and convenience.

The display device of the present invention is applicable to uses such as a display device for mobile terminals such as an electronic book or a mobile phone, a display device for car navigation, a display device for a self-luminous roll screen, etc. If it is equipped with a transparent panel or a touch panel function, it can be applied to whiteboards and memo boards in addition to the above-mentioned applications for notebook computers.
Moreover, it can be mounted as a partial function of various devices that require a display such as a video movie, a digital camera, and various remote controllers, and can be applied to various applications.

It is a schematic block diagram (at the time of display display housing) of the display apparatus applied to Example 1. FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic configuration diagram of a display device applied to Example 1 (when a display display is pulled out). It is a schematic block diagram of the display apparatus applied to Example 2 (at the time of display display accommodation). It is a schematic block diagram (at the time of a display display drawer) of the display apparatus applied to Example 2. FIG. It is a schematic block diagram (at the time of a display display drawer) of the display apparatus applied to Example 2. FIG. 6 is a schematic configuration diagram of a display device applied to Embodiment 2. FIG. It is an example of the schematic of Example 3 of the display apparatus using this invention. It is an actual display example of Example 3 of the display device using the present invention. It is an example of another schematic diagram of Example 3 of a display device using the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Display apparatus 101 ... Display apparatus 102 ... Display apparatus 103 ... Display apparatus 104 ... Display apparatus 110 ... Display control part and signal processing part 111a ... Display control part and signal processing part 111b ... Display control part and signal processing part 112 ... Display Control unit and signal processing unit 113a ... Display control unit and signal processing unit 113b ... Display control unit and signal processing unit 113c ... Display control unit and signal processing unit 120 ... Flexible display display 121a ... Flexible display Display 121b ... Display display with flexibility 122 ... Display display with flexibility 123a ... Display display with flexibility 123b ... Display display with flexibility 123c ... Display display with flexibility 124a ... Flexibility Display 124b ... which has flexibility Display Display 124c ... Flexible Display Display 124d ... Flexible Display Display 124e ... Flexible Display Display 124f ... Flexible Display Display 130 ... Display Drawer 131a ... Display Drawer 131b ... Display drawer 132 ... Display drawer 133a ... Display drawer 133b ... Display drawer 133c ... Display drawer 134a ... Display drawer 134b ... Display drawer 134c ... Display drawer 134d ... Display drawer 134e ... Display drawer 134f ... Display drawer 140 ... Display 150 ... Signal processor 152 ... Signal processor 153 ... Signal processor 154 ... Signal Input unit 155 ... signal input part 160 ... operation button 170a ... stretching holding means 170b ... stretching holding means

Claims (5)

A plurality of display units for displaying an image based on a display signal, at least part of which is flexible;
A storage section for storing the plurality of display display sections so that each of the plurality of display display sections is pulled out in the same direction;
A display control unit that performs display control of the display display unit,
The display control unit detects an amount of each of the plurality of display display units pulled out from the storage unit when the plurality of display display units are pulled out from the storage unit in the same direction in a stacked state. Of the plurality of display display units that are pulled out, the display display unit that is pulled out with the first pull-out amount is pulled out with the first display display unit and the second pull-out amount that is smaller than the first pull-out amount. When the display display unit is a second display display unit, a first displayable area corresponding to the amount of the drawn out surface of the first display display unit viewed from the second display display unit side, A surface of the second display display unit is set as a second displayable area corresponding to the drawn amount, and the first displayable area is set. That the second display display device and controlling so as not to display an image in a region where the display section is overlapped.   2. The display according to claim 1, wherein the display control unit controls to display an image having a size corresponding to a region in the first displayable region where the second display display unit does not overlap. apparatus.   The display control unit further includes an enlargement / reduction display unit that enlarges / reduces an image according to an area of the first displayable area where the second display display unit does not overlap. Or the display apparatus of 2.   The display device according to claim 1, wherein the display control unit further includes a signal processing circuit that supplies a plurality of display signals having different input formats to the plurality of display display units. The storage unit, when the set of the display displaying unit status display unit by arranging a plurality of the display unit in a direction perpendicular to the plane of the display before Symbol display unit in the plane of the display unit 5. The display device according to claim 1 , wherein a plurality of sets of the display display units are accommodated in a direction orthogonal to a direction of being pulled out.

Images