JP2007243737A - Device and method for displaying mobile terminal, program and mobile terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily make a character, an image or the like displayed on an LCD view when an LCD size is miniaturized with the miniaturization of a mobile terminal. <P>SOLUTION: A device for displaying a mobile terminal has a plurality of the LDCs 104, 106 and 105 forming one image plane by developing and arranging a plurality of the image planes on a display device for the mobile terminal conducting displays on a plurality of the image planes and developing detecting sections 106, 108 and 112A detecting the developments of a plurality of the LCDs. The device further has a synthetic image-plane display section 112B synthesizing the image planes for a plurality of the LCDs to one image plane when the development is detected by the developing detecting section and displaying one content on the synthesized image plane. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a display device for a portable terminal. In particular, the present invention relates to a display device, method, program, and mobile terminal for a mobile terminal that expands a display surface.

FIG. 7 is a view showing the appearance of a portable terminal which is a premise of the present invention. As shown in FIG. 5A, a large main surface LCD (liquid crystal display unit) 102 is mounted as a display unit on the surface of the portable terminal, and a small sub-back LCD 101 is disposed as a display unit on the back surface of the portable terminal. Is known to increase display information.
In this case, the installation positions of the two LCDs are in a front / back positional relationship, and the display contents are not confirmed at the same time. Also, they are independent and do not display one item at the same time.

Many portable terminal devices are made compact for convenience of carrying, and the size of the LCD of the display unit is also reduced accordingly. However, there is a problem that characters and images displayed on the LCD become small and difficult to see. .
Conventionally, the first liquid crystal display unit and the second liquid crystal display unit can be used as a third liquid crystal display when a large volume of information display is required, although it is normally compactly folded and can be used in the same manner as an ordinary mobile phone. The first liquid crystal display unit and the second liquid crystal display unit can be developed on the front surface of the third liquid crystal display unit provided on the front surface of the telephone body. The liquid crystal display portions are formed so that all the liquid crystal display portions face the front when the liquid crystal display portions are unfolded on the same plane, and the first liquid crystal display portion and the second liquid crystal display portion are further connected to the telephone body. In some cases, the first liquid crystal display unit is exposed to the front surface of the telephone body when it is folded into a cover and the third liquid crystal display unit is hidden behind the folded second liquid crystal display unit (for example, patents). Reference 1).

However, in Patent Document 1, the first liquid crystal display unit and the second liquid crystal display unit are expanded on the same plane as the third liquid crystal display unit to enable large area information display. Accordingly, when the size of the LCD is reduced, it is not easy to see characters, images, etc. displayed on the LCD.
Conventionally, in a foldable portable terminal device having a main display and a sub-display, the sub-display on the back of the main display is slid to enable the received image and character information to be displayed simultaneously without overlapping. By moving and rotating and pointing to the same display surface as the main display, the main display and sub-display can be viewed simultaneously, and by displaying the image and text information on separate displays, the image and text information Some can be displayed without overlapping (for example, see Patent Document 2).

However, in the above-mentioned Patent Document 2, in a foldable portable terminal device having a main display and a sub-display, images and character information are displayed on separate displays. As described above, the portable terminal can be downsized. Accordingly, when the size of the LCD is reduced, it is not easy to see characters, images, etc. displayed on the LCD.
Conventionally, a portable information terminal including a videophone function is provided with a wider display screen, and at the same time, a means for simultaneously checking both a transmission screen and a reception screen is provided. By providing a movable display unit with a lid-like shape that can be deployed, deploying the movable display unit around the axis provided on the housing, and enabling the display surface to be identified from the same direction as the fixed display unit Provides a wider display screen, and displays different information on the fixed display unit and the movable display unit, increasing the amount of information that can be recognized by the operator at one time, and transmitting to one screen especially when using a videophone By displaying the received image on the other screen, it is possible to make a call while checking the actual size of the transmitted image, which has been difficult in the past (see, for example, Patent Document 3).

However, in the above-mentioned Patent Document 3, a movable movable display unit that can be developed is provided on the back of the casing of the portable information terminal, and a transmission image is displayed on one screen and a reception image is displayed on the other screen. As described above, when the size of the LCD is reduced along with the downsizing of the portable terminal, it is not easy to see characters, images, etc. displayed on the LCD.
Conventionally, in order to improve the operability of a foldable mobile terminal, in a foldable mobile phone having a main panel, an LCD panel, and a key panel, the LCD panel or both the LCD panel and the key panel are closed. LCD display section, search / confirmation buttons appear and function, sub LCD display section, search / confirmation button display functions and operation functions with LCD panel and key panel closed and open Is automatically switched (see, for example, Patent Document 4).

However, in Patent Document 4, the display function and operation function of the sub LCD display unit and the search / confirm button are automatically switched between when the LCD panel and the key panel are closed and opened. However, as described above, when the size of the LCD is reduced along with the downsizing of the portable terminal, it is not easy to see characters, images, etc. displayed on the LCD.
Conventionally, in order to provide a portable terminal device that can simultaneously realize a reduction in the size of the main body and an increase in the size of the display screen, thereby improving visibility and operability, It consists of a panel, a side panel, and a key panel. The main panel and the side panel are connected by a rotatable connecting portion, and the main panel and the key panel are connected by a rotatable connecting portion and can be overlapped. The main panel and the side panel of at least two of the three panels have an LCD display unit as an image display unit on the surface, and the LCD display unit displays a desired image, respectively. For example, if the LCD display unit is used for editing and the LCD display unit is used for reference, both can be viewed simultaneously, and editing on the LCD display unit is extremely easy. That (for example, see Patent Document 5).

  However, in Patent Document 5 described above, at least two of the three panels, the main panel and the side panel, have LCD display portions that are image display portions, and the LCD display portions each display a desired image. If the LCD display unit is used for editing and the LCD display unit is used for reference, both of them can be viewed at the same time. When the size is reduced, it is not easy to see characters, images, etc. displayed on the LCD.

Conventionally, it is possible to fold each other via a hinge in order to provide a mobile phone device that can operate in a normal state while maintaining portability and can display a large amount of information such as a TV phone or an e-mail. The display unit includes a first display unit (front display unit) and a second display unit (back display unit) connected to the side surface of the display unit by a hinge, In the normal state, the first display unit and the second display unit operate as independent display units. On the other hand, when the second display unit is expanded, both display units are arranged in parallel, and this expansion is performed by the detector. There is one that detects and enables both display units to operate in the “two-screen mode” (see, for example, Patent Document 6).
However, in the above-mentioned Patent Document 6, there is one that enables both display units of the mobile phone device to operate in the “two-screen mode”, but as described above, the size of the LCD becomes smaller as the mobile terminal becomes smaller. In such a case, it is not easy to see characters, images, etc. displayed on the LCD.

JP 2003-169113 A JP 2005-149192 A JP 2003-244301 A JP 2002-2108030 A JP 2002-374333 A JP 2005-223507 A

  Accordingly, in view of the above-described problems, the present invention provides a display device, method, and program for a mobile terminal that makes it easier to see characters, images, etc. displayed on the LCD when the size of the LCD is reduced as the mobile terminal is downsized. And it aims at providing a portable terminal.

  In order to solve the above problems, the present invention provides a display device for a mobile terminal that displays on a plurality of screens, a plurality of LCDs that expand and arrange a plurality of screens to form one screen, and the plurality of LCDs. A development detection unit that detects development, and a composite screen display unit that, when the development detection unit detects development, combines a plurality of LCD screens into a single screen and displays one content on the combined screen. A display device for a portable terminal is provided.

  Furthermore, the present invention provides a display device for a mobile terminal that displays a screen on the front and back surfaces, a front LCD that displays a screen on the surface of the mobile terminal, and a back LCD that displays a screen on the back of the mobile terminal, A hinge that unfolds the rear LCD with respect to the front LCD, forms the front LCD and the rear LCD side by side on one screen, a unfolding detection unit that detects unfolding of the rear LCD by the hinge, and the unfolding detection And a combined screen display unit that displays the contents of the front LCD and the rear LCD arranged at the time of detection of the rear LCD by combining the screens of the front LCD and the rear LCD into a single screen. A display device for a portable terminal is provided.

  Furthermore, the present invention provides a display device for a portable terminal that displays a screen on the front and back surfaces, a front LCD that displays a screen on the surface of the portable terminal, and two rear LCDs that display a screen on the back of the portable terminal. The two rear LCDs to the left and right with respect to the front LCD, two hinges that form the front LCD and the two rear LCDs side by side on one screen, and the two rear LCDs by the hinges. An unfolding detection unit for detecting unfolding, and the contents of the front LCD and the back LCD arranged when the unfolding detection of the rear LCD is detected by the unfolding detection unit are combined into a single screen, and one content is displayed on the combined screen. Provided is a portable terminal display device comprising a combined screen display unit.

Further, one of the two rear LCDs synthesizes the screen with the front LCD, and displays one content on the synthesized screen.
In addition, when the number of vertical pixels of the front LCD and the back LCD that are arranged adjacent to each other in the vertical direction is different, the composite screen display unit displays according to the smaller number of vertical pixels. The display processing of the large part is not performed for the person with many.

Further, when the number of vertical pixels of the front LCD and the rear LCD arranged adjacent to each other in the vertical direction is different, the composite screen display unit performs display according to the larger number of vertical pixels. The display processing of a small part is not performed for those with a small number.
Furthermore, the present invention provides a display method of a mobile terminal that displays on a plurality of LCD screens, the step of unfolding the plurality of LCDs to form a single screen, and the unfolding of the plurality of LCDs. A portable terminal comprising: a step of detecting; a step of combining the plurality of LCD screens expanded at the time of detection of expansion into a single screen; and a step of displaying one content on the combined single screen. Provide a display method.

  Further, the present invention relates to a program for executing display on a mobile terminal for displaying on a plurality of LCD screens by a computer, a procedure of unfolding the plurality of LCDs with a hinge so as to form one screen, and the plurality of the plurality of LCDs. A procedure for detecting the development of the LCD, a procedure for synthesizing the plurality of LCD screens developed at the time of development detection, and a procedure for displaying one content on the synthesized screen. A program for executing display on a portable terminal by a computer is provided.

  Furthermore, the present invention provides a portable terminal that displays on a plurality of screens, a plurality of LCDs that display a plurality of screens, a hinge that expands the plurality of LCDs so as to form one screen, and the plurality of the plurality of LCDs. An unfolding detection unit for detecting the unfolding of the LCD, and a combined screen display unit that, when unfolding is detected by the unfolding detecting unit, synthesizes a plurality of LCD screens into a single screen and displays one content on the combined screen A portable terminal is provided.

  As described above, according to the present invention, a plurality of LCDs are arranged in a hinge so as to form a single screen, the development of the plurality of LCDs is detected, and the plurality of LCD screens developed at the time of detecting the development are displayed. Since one screen is combined and one content is displayed on the combined screen, even if the size of the LCD is reduced due to the miniaturization of the mobile terminal, a plurality of LCD screens are made into one screen. One content can be displayed, and the content of characters and images displayed on the LCD screen can be enlarged, making it easier to see.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view showing an appearance of a portable terminal according to the present invention. As shown in the figure, the portable terminal has a main surface LCD (liquid crystal display unit) 104 on the front surface, a sub-rear LCD 103 on the back surface, and a hinge 105 on the side surface.
The front LCD 104 and the back LCD 103 have a function of displaying information such as characters and images.

The hinge 105 has a function of unfolding the rear LCD 103 and unfolding right next to the front LCD 104.
The front LCD 104 and the rear LCD 103 are preferably the same size so that the rear LCD 103 can be seen at the same time as the rear LCD 103 is unfolded.
Further, a switch 106 is installed on the side surface of the front LCD 104 and the rear LCD 103 at the time of deployment, and the switch 106 is pressed and turned on when the rear LCD 103 is deployed and deployed to the side of the front LCD 104 to detect deployment. It has the function of.

FIG. 2 is a block diagram showing a schematic main part of the circuit configuration of the mobile terminal in FIG. As shown in this figure, a CPU (central processing unit) 107 is mounted on the portable terminal, and the CPU 107 is connected to each part in the portable terminal via a bus and controls each part.
Of these, a ROM (Read Only Memory) 111 stores various control programs to be executed by the CPU 107 and fixed data such as a dictionary used for kana character conversion.

The control program stored in the ROM 111 includes software for controlling the front LCD 104 and the back LCD 103 as one LCD and displaying an image.
Further, a RAM (Random Access Memory) 110 stores data, an input unit 109 inputs key operation information from the keyboard 113, a display control unit 112 controls the rear LCD 103 and the front LCD 104, and a switch input unit 108 switches. Information on ON or OFF is input from 106.

The display control unit 112 includes a development detection unit 112A and a composite screen display unit 112B.
The unfolding detection unit 112A detects whether or not the rear LCD 103 has unfolded based on the ON / OFF information of the switch 106 input by the switch input unit 108.
The composite screen display unit 112B combines the screen of the front LCD 104 and the screen of the rear LCD 103 into one screen and displays the composite screen when the development detection unit 112A detects the development.

That is, the composite screen display unit 112B calculates the display position to the front LCD 104 and the rear LCD 103 to a size that combines both screen sizes, and issues a drawing command for changing two screens to one screen.
FIG. 3 is a diagram for explaining an example of change to one screen by the composite screen display unit 112B in FIG. As shown in this figure (a), with respect to the front LCD 104 and the rear LCD 103 that are adjacent to each other in the vertical direction, the screen of the front LCD 104 is horizontal: the number of X1 pixels, vertical in the composite screen display unit 112B of the portable terminal. When the rear LCD 103 has a screen size of Y pixels and the display size is horizontal: X2 pixels and vertical: Y pixels, and the display size is two screens, as shown in FIG. For the front LCD 104, the display size is changed to one screen of horizontal: X1 + X2 pixels and vertical: Y pixels.

For example, when a TV (television) is displayed on the front LCD 104 and a browser is displayed on the rear LCD 103, the developed front LCD 104 and rear LCD 103 display only the TV, or display only the browser.
FIG. 4 is a diagram showing a modification of the change of one screen in FIG. In the composite screen display unit 112B of the mobile terminal, as shown in FIG. 3A, the screens of the front LCD 104 and the rear LCD 103 are different from the vertical: Y1 pixel number and Y2 pixel number as compared to FIG. There is. Here, Y1> Y2.

As shown in this figure (b), the display size of one screen is set to the length of the screen of the shorter rear LCD 103: Y2 pixels. In this case, display processing is not performed on the portion of the front LCD 104 in the length: Y1-Y2 and width X1 pixels.
As shown in FIG. 4C, the display size of one screen is set to the length of the screen of the longer front LCD 104: Y1 pixels. In this case, since display is not actually performed on the portion of the rear LCD 103 in the length: Y1-Y2 number and width X2 pixel number, display processing of this portion is not performed.

FIG. 5 is a flowchart for explaining a series of operations of the display device of the portable terminal in FIG. As shown in the figure, in step S201, it is determined whether or not there is a display request in the portable terminal. If not, the process ends.
In step S202, it is determined whether or not the switch 106 is ON. If the switch 106 is ON, the process proceeds to step S207.

In step S203, if the switch 106 is OFF, it is determined whether or not the display request for the front LCD 104 is requested. If it is not a display request for the front LCD 104, the process proceeds to step S205.
In step S204, if the display request is for the front LCD 104, for example, a TV drawing command is issued to the front LCD 104.

In step S205, it is determined whether or not there is a display request for the rear LCD 103. If there is no display request on the rear LCD 103, the process is terminated.
In step S206, if there is a display request for the rear LCD 103, for example, a browser drawing command is issued to the rear LCD 103, and the process ends.
In step S207, the screen size is the sum of the size of the front LCD 104 and the size of the rear LCD 103.

In step S208, display position calculation is processed based on the total size.
In step S209, a TV or browser drawing command is issued to the front LCD 104 and the rear LCD 103, and the process is terminated.
Therefore, according to the present invention, even if the size of the LCD is reduced due to the miniaturization of the portable terminal, the front LCD 104 and the rear LCD 103 are displayed as one screen to display one (television) (television). Thus, it becomes possible to enlarge the contents of characters and images displayed on the LCD screen, which makes it easier to see.

  FIG. 6 is a diagram showing the appearance of another example of the mobile terminal in FIG. As shown in the figure, the rear LCD 103 is expanded on the right side of the front LCD 104, and the rear LCD 114 is expanded on the left side, so that three screens are arranged side by side, and three screens are formed as one screen. One content may be displayed. In this case, a hinge and a switch (not shown) are provided between the front LCD 104 and the rear LCD 114.

In this case, of the three screens, only the front surface LCD 104 and the rear LCD 103 are set as one screen and one content is displayed and other contents are displayed on the rear LCD 114, or only the front LCD 104 and the rear LCD 114 are set as one screen. One content may be displayed and another content may be displayed on the rear LCD 103. As a result, it is possible to display the enlarged content and other information at the same time.
Generally, a plurality of LCD screens may be arranged to form one screen, and one content may be displayed. Thereby, it becomes possible to further enlarge and display the contents.

  The mobile terminal has been described above. The mobile terminal includes mobile terminal devices such as a mobile phone having a back-to-back LCD, a PHS (simple mobile phone), and a PDA (personal digital assistant). The present invention can be used.

It is a perspective view which shows the external appearance of the portable terminal which concerns on this invention. It is a block diagram which shows the schematic principal part of the circuit structure of the portable terminal in FIG. It is a figure explaining the example of a change to 1 screen by the synthetic | combination screen display part 112B in FIG. It is a figure which shows the modification of the change of 1 screen of FIG. 2 is a flowchart for explaining a series of operations of the display device of the mobile terminal in FIG. 1. It is a figure which shows the external appearance of another example of the portable terminal in FIG. It is a figure which shows the external appearance of the portable terminal used as the premise of this invention.

Explanation of symbols

101, 103 ... rear LCD
102, 104 ... surface LCD
105 ... Hinge 106 ... Switch 107 ... CPU
108 ... Switch input unit 109 ... Input unit 110 ... RAM
111 ... ROM
112 ... Display control unit 112A ... Development determination unit 112B ... Composite screen display unit 113 ... Keyboard

Claims (9)

In a display device of a mobile terminal that displays on a plurality of screens,
A plurality of LCDs that expand and arrange a plurality of screens to form one screen;
An unfolding detector for detecting unfolding of the plurality of LCDs;
A display of a portable terminal, comprising: a combined screen display unit configured to combine a plurality of LCD screens into a single screen and display a single content when the expansion is detected by the expansion detection unit apparatus. In the display device of the mobile terminal that displays on the screen on the front and back,
A surface LCD for displaying a screen on the surface of the mobile terminal;
A back LCD for displaying a screen on the back of the mobile terminal;
A hinge that unfolds the rear LCD relative to the front LCD and forms the front LCD and the rear LCD side by side on a single screen;
An unfolding detection unit for detecting unfolding of the rear LCD by the hinge;
A combination screen display unit configured to combine the front LCD and the rear LCD screen arranged when the expansion detection unit detects the expansion of the rear LCD into a single screen and display one content on the combined screen. A display device for a portable terminal, which is characterized. In the display device of the mobile terminal that displays on the screen on the front and back,
A surface LCD for displaying a screen on the surface of the mobile terminal;
Two rear LCDs that display a screen on the back of the mobile terminal;
Two hinges that unfold two rear LCDs to the left and right with respect to the front LCD and form the front LCD and the two rear LCDs side by side on one screen;
An unfolding detector that detects unfolding of the two rear LCDs by the hinge;
A combination screen display unit configured to combine the front LCD and the rear LCD screen arranged when the expansion detection unit detects the expansion of the rear LCD into a single screen and display one content on the combined screen. A display device for a portable terminal, which is characterized. The mobile terminal display device according to claim 3, wherein one of the two rear LCDs synthesizes a screen with the front LCD and displays one content on the synthesized screen. When the number of vertical pixels of the front LCD and the back LCD that are arranged adjacent to each other in the vertical direction is different, the composite screen display unit performs display according to the smaller number of vertical pixels, and the number of vertical pixels is large. 4. The display device for a portable terminal according to claim 2, wherein display processing of a large part is not performed on the other side. When the number of vertical pixels of the front LCD and the back LCD that are arranged adjacent to each other in the vertical direction is different, the composite screen display unit performs display according to the larger number of vertical pixels, and the number of vertical pixels is small. 4. The display device for a portable terminal according to claim 2 or 3, wherein a display process for a small part is not performed on the other side. In a display method of a portable terminal that displays on a plurality of LCD screens,
Deploying the plurality of LCDs with a hinge so as to form a single screen;
Detecting the development of the plurality of LCDs;
Combining the plurality of LCD screens developed at the time of development detection into one screen;
And a step of displaying one content on one synthesized screen. A display method for a portable terminal, comprising: In a program for executing on a computer display of a portable terminal that displays on a plurality of LCD screens,
Deploying the plurality of LCDs with a hinge so as to form a single screen;
Detecting the development of the plurality of LCDs;
Combining the plurality of LCD screens developed at the time of development detection into one screen;
The program which performs the display of a portable terminal characterized by including the procedure of displaying one content on one synthesized screen. On mobile devices that display on multiple screens,
Multiple LCDs that display multiple screens;
A hinge that unfolds the plurality of LCDs to form a single screen;
An unfolding detector for detecting unfolding of the plurality of LCDs;
A portable terminal, comprising: a combined screen display unit configured to combine a plurality of LCD screens into a single screen and display one content on the combined screen when the expansion detection unit detects the expansion.

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