JP2007329713A - Mobile terminal device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile terminal device such that two users who view two displays can pleasantly view their display pictures. <P>SOLUTION: The mobile terminal device according to the present invention includes a first hinge part 13 which is provided to one end of a first case 1 and rotatably connects a second case 2, a second hinge part 24 which is provided to another end of the first case 1 and rotatably connects a third case 3, a first display part 21 which is provided at one of the first case 1, second case 2, and third case 3, and a second display part 31 which is provided at one of the cases except the case where the first display part 21 is provided among the first case 1, second case 2, and third case 3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mobile terminal device having two displays.

  Some mobile terminal devices typified by mobile phones in recent years are provided with two displays. One is called a main display and the other is called a sub-display, which is equipped with two displays with different display sizes. There are many. In particular, in a mobile terminal device configured by two housings and capable of opening and closing the two housings, the main display is disposed at a position where the display screen can be viewed when the two housings are opened, On the other hand, the sub-display is arranged at a position where the display screen can be seen even when the two casings are closed.

  However, since these two displays are provided on the outer surface of the portable terminal device so as to face each other and display the display screen in the opposite direction, the portable terminal device user intends to use the two displays at the same time. It was n’t.

  For this reason, the display direction of one of the two displays (that is, the direction perpendicular to the display surface formed by the display) and the display direction of the remaining displays can be set to the same direction. In order to be able to do so, there has been proposed a mobile phone device in which any one of the displays is provided in a third casing and a hinge for rotating the third casing is provided (for example, Patent Document 1).

JP 2005-223507 A

  However, the cellular phone device of Patent Document 1 can present a larger amount of information to the user by setting the directions displayed by the two displays to the same cellular phone device user. It is not intended for two users to see separate displays. The portable terminal device provided with the main display and the sub display is also not intended for two users to see different displays. For this reason, when two users try to see separate displays, one of the users becomes difficult to see, or the two users need to see them in close proximity. It was difficult to see.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a portable terminal device that allows two users who are viewing two displays separately to comfortably view the display screen. To do.

  According to another aspect of the present invention, there is provided a portable terminal device including: a first hinge portion that is provided at one end of the first housing and rotatably connects the second housing; A second hinge portion rotatably connected to the third housing, and the first housing, the second housing, and the third housing. A first display unit provided in any one of the housings, and the first display unit among the first housing, the second housing, and the third housing are provided. And a second display portion provided in any one of the casings except for the casing.

  According to this configuration, two users who are viewing the two displays separately can view the display screen.

  In the mobile terminal device of the present invention, the first hinge portion fixes the second housing to an arbitrary angle, and the second hinge portion fixes the third housing to an arbitrary angle. Including things fixed to.

  According to this configuration, two users who are viewing the two displays separately can view the display screen with the display set at an angle that is easy for each user to view.

  In the mobile terminal device of the present invention, the first hinge part includes a normal of a display surface formed by the first display unit and a normal of a display surface formed by the second display unit. The second casing is fixed so that the orientations of the second display part and the second display part are formed by the normal line of the display surface formed by the first display part and the second display part. And fixing the third housing so that the normal direction of the display surface is different.

  According to this configuration, two users who are viewing the two displays separately can view without touching each other, so that the display screen can be comfortably viewed.

  The portable terminal device according to the present invention includes a first imaging unit provided in a casing provided with the first display unit and a first imaging unit provided in the casing provided with the second display unit. Two imaging units, wherein the first imaging unit is substantially in an imaging direction by the first imaging unit and a direction perpendicular to a display surface formed by the first display unit. The second imaging unit is provided so as to be parallel, and the imaging direction of the second imaging unit and the direction perpendicular to the display surface formed by the second display unit are substantially parallel to each other. Including what is provided.

  According to this configuration, it is possible to reliably capture images of two users who are viewing the two displays separately.

  In addition, the mobile terminal device of the present invention includes an image processing unit that edits two image data captured by the first imaging unit and the second imaging unit, and a communication that transmits data edited by the image processing unit. And the image processing unit edits the two image data into one image data.

  The portable terminal device of the present invention transmits an image processing unit that edits two moving image data captured by the first imaging unit and the second imaging unit, and data that is edited by the image processing unit. A communication unit, wherein the image processing unit edits the two moving image data into one moving image data.

  According to this configuration, since the image data captured by the two imaging units can be combined and transmitted to another mobile terminal device, the two image data are transmitted in a data amount for one image. be able to. For this reason, image data for two persons can be transmitted and received even with a communication line for one line used in a conventional videophone.

  According to the portable terminal device of the present invention, two users who are viewing two displays separately can comfortably view the display screen.

Hereinafter, a mobile terminal device according to an embodiment of the present invention will be described in detail. 1, FIG. 2, and FIG. 3 show a front view, a rear view, and a side view of the portable terminal device according to the embodiment of the present invention.
The portable terminal device of an embodiment of the present invention is composed of three housings. That is, an operation key 11 is provided on the outer surface, and a first housing 1 in which main circuits such as a circuit board (not shown), an antenna (not shown), and a sound collecting microphone 12 are incorporated, 1 display unit 21, a first camera 22 and a second housing 2 provided with a speaker 23, and a third housing 3 provided with a second display unit 31 and a second camera 32 Composed. The first casing 1 and the second casing 2 are connected so as to be rotatable about a first hinge portion 13 provided in the first casing 1 as a center. Has been. Further, the second casing 2 and the third casing 3 can be rotated around the axis centered on the second hinge portion 24 provided in the second casing 2. It is connected to the. Hereinafter, the state in which the first housing 1 and the second housing 2 face each other is a state in which the first housing 1 and the second housing are closed, and the first housing 1 and the second housing 2 A state other than the state where the housing 2 faces and faces is defined as a state where the first housing and the second housing are opened. Similarly, the second housing 2 and the third housing 3 In a state where the second housing and the third housing are closed, and in a state other than the state where the second housing 2 and the third housing 3 are facing each other. Assume that the second housing and the third housing are open.

  FIG. 1A shows a state in which the first housing and the second housing are opened and the second housing and the third housing are closed in the mobile terminal device according to the embodiment of the present invention. A front view (a), a rear view (b), and a side view (c) in the state are shown. Note that FIG. 1C illustrates a plurality of side views in which the first housing and the second housing are opened. The operation keys 11 provided on the first casing 1 and the first display unit 21 provided on the second casing 2 are in a state in which the first casing 1 and the second casing 2 are closed. Each is arranged so as to face. In addition, the second display unit 31 provided in the third housing 3 is provided in the second housing 2 when the second housing 2 and the third housing 3 are in a closed state. The first display unit 21 is disposed on the back surface. Further, as shown in FIG. 1C, the first hinge portion 13 is configured so that the rotation angle θ1 of the second casing 2 with respect to the first casing 1 is an arbitrary angle, and the second casing 2 Can be fixed. When the second casing 2 and the third casing 3 are in the closed state as shown in FIGS. 1A, 1B, and 1C, the two conventional casings are Since it has the same configuration as the portable terminal device that can be opened and closed (since it appears that one housing is formed by the second housing 2 and the third housing 3), the mobile terminal device of the present invention Can be handled in the same manner as a conventional portable terminal device.

  FIG. 2 shows a state in which the first casing and the second casing are closed and the second casing and the third casing are closed in the mobile terminal device according to the embodiment of the present invention. The front view (a), back view (b), and side view (c) are shown. As shown in FIGS. 2A, 2B, and 2C, the first casing 1 and the second casing 2 are closed and the second casing 2 and the third casing are closed. When the body 3 is in the closed state, it has the same configuration as a portable terminal device that can open and close two conventional cases (one case is formed by the second case 2 and the third case 3). Therefore, the portable terminal device of the present invention can be handled in the same manner as a conventional portable terminal device.

  FIG. 3 shows a state in which the first housing and the second housing are opened and the second housing and the third housing are opened in the mobile terminal device according to the embodiment of the present invention. The front view (a), back view (b), and side view (c) are shown. FIG. 3C shows a plurality of side views in which the second housing and the third housing are opened. As shown in FIG. 3C, the second hinge portion 24 fixes the third housing 2 by setting the rotation angle θ2 of the third housing 3 with respect to the second housing 2 to an arbitrary angle. can do. Therefore, as shown in FIGS. 3 (a), 3 (b), and 3 (c), the first casing and the second casing, and the second casing and the third casing are both When in the open state, the user of the mobile terminal device appropriately rotates the second casing 2 or the third casing 3 around the second hinge portion 24 as an axis, thereby the first display portion 21. Alternatively, the angle can be adjusted to an optimum angle for viewing the display screen displayed on the second display unit 31. In addition, when the second housing 2 and the third housing are adjusted to have a mountain shape as shown in FIG. 3 (c), two people are used from two directions indicated by two arrows. The user can see the display screens displayed on the first display unit 21 or the second display unit 31 separately, and the user who is viewing the first display unit 21 can also see the first hinge unit 13. The viewing angle is adjusted by rotating the second casing 2 in the rotation direction about the second axis, and the user viewing the second display unit 31 moves the second casing 2 in the rotation direction about the second hinge unit 24. By rotating the housing 3 of 3 and adjusting the viewing angle, the display screen of the first display unit 21 or the second display unit 31 can be viewed with the optimal viewing angle for each of the two persons. In addition, when two users view the display screen displayed on the 1st display part 21 or the 2nd display part 31 separately, the optimal by the 1st display part 21 or the 2nd display part 31 is used. The viewing angle depends on the rotation angle θ1 of the second housing 2 with respect to the first housing 1, but generally the rotation angle θ2 of the third housing 3 with respect to the second housing 2 is set to 0 to 180 degrees. This is when it is rotated within a range of degrees.

  Further, as a mechanism other than the mobile terminal device according to the embodiment of the present invention, the following mechanism is also conceivable. FIG. 4 shows a front view, a rear view, and a side view of the portable terminal device according to the embodiment of the present invention. In the mobile terminal device shown in FIG. 4, the first casing 1 is provided with a first hinge part 13 and a second hinge part 14, and the first casing 1 and the second casing 2 are first. The first casing and the third casing are connected so as to be rotatable in directions in which the second hinge section 14 is an axis. As shown in FIG. 4C, the first hinge portion 13 fixes the second housing 2 by setting the rotation angle θ1 of the second housing 2 with respect to the first housing 1 to an arbitrary angle. In addition, the second hinge portion 14 can fix the third casing 2 by setting the rotation angle θ2 of the third casing 3 with respect to the second casing 2 to an arbitrary angle. it can. As shown in FIG. 4A, FIG. 4B, and FIG. 4C, the first housing and the second housing, and the second housing and the third housing are both opened. When the portable terminal device user rotates the second casing 2 or the third casing 3 as appropriate, the display screen displayed on the first display unit 21 or the second display unit 31 Can be adjusted to the optimum angle for viewing. In addition, when the first casing 1, the second casing 2, and the third casing are adjusted to an angle that forms a mountain shape as shown in FIG. Two users from two directions can see the display screens displayed on the first display unit 21 or the second display unit 31 separately, and the users who are viewing the first display unit 21 Rotates the second housing 2 in the rotation direction about the first hinge portion 13 to adjust the viewing angle, and the user viewing the second display portion 31 moves the second hinge portion 14 The display screen of the first display unit 21 or the second display unit 31 is adjusted according to the optimal viewing angle for each of the two by adjusting the viewing angle by rotating the third casing 3 in the rotation direction about the axis. Can see. In addition, when two users view the display screen displayed on the 1st display part 21 or the 2nd display part 31 separately, the optimal by the 1st display part 21 or the 2nd display part 31 is used. The viewing angle is such that the rotation angle θ1 of the second housing 2 with respect to the first housing 1 is in the range of 90 to 180 degrees, and the rotation angle θ2 of the third housing 3 with respect to the second housing 2 is 180. This is when it is rotated in the range of 270 degrees to 270 degrees.

  Next, two people watching the first display unit 21 or the second display unit 31 using the portable terminal device according to the embodiment of the present invention described above are provided in the second casing. A case will be described in which a videophone call is made with another mobile terminal device while photographing itself with the first camera 22 or the second camera 32 provided in the third housing. Note that the imaging direction of the first camera 22 provided in the second housing 2 and the direction perpendicular to the display surface formed by the first display unit 21 can be adjusted substantially in parallel. The second camera 32 provided in the third housing 3 also has an imaging direction and a display surface formed by the second display unit 32. It is a movable mechanism so that the vertical direction can be adjusted substantially in parallel.

  In recent years, a service for realizing a TV phone call has been provided between two mobile phones, and by transmitting moving image data captured by one camera provided in each mobile phone, the situation of the mobile phone itself or You can tell the state of your neighborhood. The portable terminal device according to the present invention transmits the moving image data for two persons captured by the two cameras, thereby transmitting the state of the two persons or the vicinity of the two persons to the other party's mobile phone. With the goal.

  However, as a matter of course, only one video call line is allocated to one mobile terminal device, so that moving images captured by two cameras are independently transmitted to the counterpart mobile terminal device. Even when trying to do so, there is a problem that the moving image cannot be transmitted, or even if it can be transmitted, it takes time to transmit, so that the reproduced image does not synchronize with the call voice. In addition, it is necessary to consider a moving image reproduction method suitable for a TV phone when two moving images are received for the counterpart mobile terminal device. Hereinafter, the processing of the mobile terminal device that transmits a moving image and the mobile terminal device that receives the moving image will be described in two embodiments.

(First embodiment)
The portable terminal device according to the first embodiment of the present invention will be described below. In FIG. 5, the block diagram showing the structure of the portable terminal device of 1st Embodiment of this invention is shown.
The mobile terminal device according to the first embodiment of the present invention includes an image generation circuit that generates a moving image to be transmitted to the mobile terminal device of the other party from the image captured by the first camera 22 and the second camera 32. And an image reproduction circuit for generating an image for displaying a moving image received from the mobile terminal device of the other party of the TV phone on the first display unit 21 or the second display unit 31. The image generation circuit includes an image signal processing control unit 15, a transmission signal generation unit 16, and a radio unit 17. The image reproduction circuit includes a wireless unit 17, a received signal decoding unit 18, and a received video processing control unit 19. The image generation circuit and the image reproduction circuit are preferably mounted on a circuit board inside the first housing 1, but these circuits are installed inside the second housing 2 or the third housing 3. If there is a space to arrange, it may be arranged in that space.

  The image generation circuit will be described. The image signal processing control unit 15 converts the video captured by the first camera 22 and the second camera 32 into a video signal (the video signal from the first camera 22 is the video signal 1, and the video signal from the second camera 32 is the video signal. Is referred to as a video signal 2), and composite image data obtained by data processing of the video signal is output to the transmission signal generator 16. Data processing for generating a composite image signal by the image signal processing control unit 15 will be described later. The transmission signal generation unit 16 converts the composite image data input from the image signal processing control unit 15 into a data packet for portable wireless transmission, and sequentially outputs the data packet to the wireless unit 17. The radio unit 17 outputs a radio wave for portable radio modulated based on the data packet input from the transmission signal generation unit 16.

  The image reproduction circuit will be described. The wireless unit 17 also outputs a signal obtained by demodulating the received portable radio wave to the received signal decoding unit 18. The reception signal decoding unit 18 outputs image data obtained by decoding the signal input from the wireless unit 17 to the reception video processing control unit 19. The received video processing control unit 19 outputs the image data to the first display unit 21 or the second display unit 31. Details of the image data output to the first display unit 21 or the second display unit 31 by the received video processing control unit 19 will be described later.

  Next, an example of data processing for generating a composite image signal by the image signal processing control unit 15 will be described. The purpose of the processing by the image signal processing control unit 15 is to edit the video signals 1 and 2 input from the first camera 22 and the second camera 32 and suppress the amount of image data to be transmitted to the counterpart mobile terminal device. It is. In other words, an image picked up by one camera is transmitted, and a data amount equivalent to that of a videophone by a conventional mobile phone is transmitted without transmitting a data amount twice that of a videophone by a conventional mobile phone. The video signals 1 and 2 are edited so that an image captured by a single camera can be transmitted.

  The first camera 22 and the second camera 32 output image data of a predetermined size (for example, image data of 144 × 176 pixels) as video signals 1 and 2. For this reason, the image signal processing control unit 15 thins out the image data of the pixels in the vertical direction or the horizontal direction from the video signals 1 and 2 input from the first camera 22 and the second camera 32. Reduce the amount of data. The amount of data to be thinned out by the image signal processing control unit 15 is about half of the image data input from the first camera 22 and the second camera 32 because the portable terminal device of the present invention transmits image data for two people. It is preferable to thin out. FIG. 6 is a conceptual diagram of image data before and after thinning by the mobile terminal device according to the first embodiment of the present invention. 6A1 is image data captured by the first camera 22, FIG. 6A2 is image data captured by the second camera 32, and FIG. 6B is the first camera 22 and the first data. Image data obtained by thinning out image data captured by the second camera 32 in the vertical direction, FIG. 6C illustrates image data obtained by thinning image data captured by the first camera 22 and the second camera 32 in the horizontal direction, FIG. 6D shows image data obtained by thinning out image data captured by the first camera 22 and the second camera 32 in the vertical direction and the horizontal direction, and FIG. 6E shows the first camera 22 and the second camera. The image data obtained by thinning out the area other than the central portion of the image data captured by the camera 32 are respectively shown.

  The image signal processing control unit 15 outputs to the transmission signal generation unit 16 image data in which the two thinned images are rearranged in each pixel so as to fit within a predetermined size. The predetermined size is obtained by exchanging information defining the image size and format information as one piece of information of header information of the transmission signal between the calling-side mobile terminal device and the receiving-side mobile terminal device before starting the TV phone. (Same information may be exchanged using other communication applications such as e-mail) so that the same information is stored in the calling-side mobile terminal device and the receiving-side mobile terminal device. Or, the user of the calling-side mobile terminal device and the user of the receiving-side mobile terminal device that have been in contact with each other in common to the calling-side mobile terminal device and the receiving-side mobile terminal device by their own operations May be stored in advance. In this manner, images of two people using one mobile terminal device are transmitted to the mobile terminal device of the TV call partner.

  On the other hand, a composite image composed of the above-described two-person image is displayed on the display unit of the mobile terminal device of the TV call partner, but only one of the composite images is displayed. Sometimes you want to. For example, when only the image of a person speaking in a voice call is displayed. In this case, the mobile terminal device of the TV call partner needs to specify an image area to be displayed in the composite image.

  In such a case, the image signal processing control unit 15 outputs the combined image data to the transmission signal generation unit 16, and among the pixels of the image data, (x, y) = (X0 <x <X1). Y0 <y <Y1) is output as the first image, (x, y) = (X1 <x <X2, Y1 <y <Y2) is output as the second image, etc. The area specifying information for specifying the image area of the two persons is notified to the mobile terminal apparatus of the TV call partner as one piece of header information of the transmission signal between the calling-side mobile terminal apparatus and the receiving-side mobile terminal apparatus when the TV phone starts (TV You may exchange the same information using other communication applications such as e-mail before starting the phone call). Then, the received video processing control unit 19 of the mobile terminal device that is the other party of the TV call refers to the received area specifying information, extracts a part of the image data, and filters the extracted image data. Displayed after processing to enlarge to a predetermined size. By this processing, the mobile terminal device of the TV call partner can display only one of the synthesized images.

  In addition, even if the area specifying information is not exchanged between the calling-side mobile terminal device and the receiving-side mobile terminal device, if the two image data combining processing method performed in the calling-side mobile terminal device is determined in advance, The called-side mobile terminal device can discriminate two of the image data. For example, if it is determined in advance that the calling-side mobile terminal device always performs a combining processing method for combining two images thinned in the vertical direction so as to fit within a predetermined size as shown in FIG. The terminal device extracts the image data in the upper half of the received image data, performs a filtering process on the extracted image data, enlarges the image data to a predetermined size, and displays it. As described above, the present invention can be realized even by a configuration that does not use the area specifying information by making an agreement between the calling-side mobile terminal device and the receiving-side mobile terminal device.

  According to the portable terminal device of the present invention, two users who are viewing two displays separately can comfortably view the display screen, and are useful in the field of portable terminal devices having two displays. It is.

Front view when the first casing and the second casing are open and the second casing and the third casing are closed in the portable terminal device according to the embodiment of the present invention Figure (a), back view (b) and side view (c) Front view when the first housing and the second housing are closed and the second housing and the third housing are closed in the portable terminal device according to the embodiment of the present invention. Figure (a), back view (b) and side view (c) Front view when the first casing and the second casing are open and the second casing and the third casing are open in the mobile terminal device according to the embodiment of the present invention Figure (a), back view (b) and side view (c) FIG. 4 shows another example of a front view, a rear view, and a side view of the portable terminal device according to the embodiment of the present invention. The block diagram showing the structure of the portable terminal device of 1st Embodiment of this invention. The conceptual diagram of the image data before and behind thinning by the portable terminal device of 1st Embodiment of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st housing | casing 11 Operation key 12 Sound collecting microphone 13 1st hinge part 14 2nd hinge part 15 Image signal processing control part 16 Transmission signal generation part 17 Radio | wireless part 18 Reception signal decoding part 19 Reception image processing control part 2 2nd housing | casing 21 1st display part 22 1st camera 23 Speaker 24 2nd hinge part 3 3rd housing | casing 31 2nd display part 32 2nd camera

Claims (6)

A first hinge portion provided at one end of the first housing and rotatably connecting the second housing;
A second hinge portion provided at another end of the first housing and rotatably connecting a third housing;
A first display unit provided in any one of the first casing, the second casing, and the third casing;
Of the first casing, the second casing, and the third casing, the first casing provided in any one casing excluding the casing provided with the first display unit. 2 display units;
A mobile terminal device comprising: The mobile terminal device according to claim 1,
The first hinge portion fixes the second housing at an arbitrary angle,
The second hinge portion fixes the third housing at an arbitrary angle;
Mobile terminal device. The mobile terminal device according to claim 2,
The first hinge portion is arranged so that a normal line of the display surface formed by the first display unit and a normal line of the display surface formed by the second display unit are in different directions. Fixed the housing of
The third hinge part is arranged so that a normal line of the display surface formed by the first display part and a normal line of the display surface formed by the second display part are in different directions. Fixing the housing of the
Mobile terminal device. It is a portable terminal device of any one of Claims 1 thru | or 3, Comprising:
A first imaging unit provided in a housing provided with the first display unit;
A second imaging unit provided in a housing provided with the second display unit;
With
The first imaging unit is provided such that an imaging direction by the first imaging unit and a direction perpendicular to a display surface formed by the first display unit are substantially parallel to each other,
The second imaging unit is provided so that an imaging direction by the second imaging unit and a direction perpendicular to a display surface formed by the second display unit are substantially parallel.
Mobile terminal device. The mobile terminal device according to claim 4,
An image processing unit that edits two image data captured by the first imaging unit and the second imaging unit;
A communication unit that transmits data edited by the image processing unit,
The image processing unit edits the two image data into one image data;
Mobile terminal device. The mobile terminal device according to claim 4,
An image processing unit that edits two moving image data captured by the first imaging unit and the second imaging unit;
A communication unit that transmits data edited by the image processing unit,
The image processing unit edits the two moving image data into one moving image data;
Mobile terminal device.

Images