JP2009267965A - Mobile terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stably project an image on a projected body using a built-in projector section and to improve operability in projection using the projector section. <P>SOLUTION: In a mobile terminal, the projector section 52 includes: an image projecting means for projecting an image based on image data onto a body M to be projected; an opening/closing mechanism in which a first casing 12 and a second casing 13 are hinge-connected via a hinge part 11, and the first casing 12 and the second casing 13 perform opening/closing operation via the hinge part 11; and a lock mechanism for locking the opening/closing operation performed by the opening/closing mechanism in a state where the first casing 12 and the second casing 13 are opened at a required angle by the opening/closing mechanism. In an approximately V-shaped state formed by locking the opening/closing operation performed by the opening/closing mechanism through the lock mechanism and opening the first casing 12 and the second casing 13 at the required angle, the projector section 52 is placed on an approximately horizontal surface and projects an image based on image data onto a body to be projected. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a portable terminal, and more particularly to a portable terminal provided with a projector unit.

  In recent years, a mobile phone as a mobile terminal has not only a communication function based on a call, but also an address book function, a mail function via a network such as a base station and the Internet, and a browser function capable of browsing a web page. In addition, a music control function for listening to audio data and a function for receiving a terrestrial digital one-segment broadcast wave have been installed.

In particular, recently, techniques for creating a projector screen using a mobile phone have been proposed (for example, Patent Documents 1 and 2). In the techniques proposed in Patent Document 1 and Patent Document 2, an image that a user has viewed on a liquid crystal display built in a conventional mobile phone is projected onto a wall surface separated by, for example, about 50 cm using a projector unit. A larger and easier-to-see image can be provided to the user. Further, according to the technique proposed in Patent Document 2, a projector built-in calibration operation (focusing, brightness adjustment, white balance, trapezoidal distortion, etc.) is performed using a camera built in a mobile phone. It can be repeated automatically during projection.
JP 2000-236375 A Japanese Patent Application Laid-Open No. 2006-092321

  When an image is projected onto an arbitrary projection object using a projector unit provided in the mobile phone, it is necessary to stabilize the mobile phone on which the projector unit is mounted using any method. As a method, for example, a method in which a user projects a mobile phone in his / her hand, a method in which some support structure is added to the mobile phone and the mobile phone is supported using this support structure at the time of projection, or on a desk A method of placing and fixing a mobile phone can be considered. However, since the projector unit itself is a relatively large component (for example, a component of about 10 cc), any method can be used to stabilize the mobile phone when the projector unit is attached to the thin upper casing. Even in this case, there is a problem that it becomes difficult to use depending on the thickness of the projector unit.

  The present invention has been made in view of such a situation, and stably projects an image on a projection target using a built-in projector unit and improves operability during projection using the projector unit. An object of the present invention is to provide a portable terminal that can be used.

  In order to solve the above-described problem, the portable terminal of the present invention includes an image projecting unit that projects an image based on image data on a projection target, a first housing, and a second housing via a hinge portion. And an opening / closing mechanism that opens and closes the first casing and the second casing via the hinge portion, and the opening / closing mechanism causes the first casing and the second casing to have a required angle. And a locking mechanism that locks the opening / closing operation by the opening / closing mechanism, and the opening / closing operation by the opening / closing mechanism is locked by the locking mechanism, and the first housing and the second housing Is placed on a substantially horizontal plane in a substantially inverted V-shape formed by opening at a required angle, and the image projecting means projects an image based on the image data onto the projection target.

  According to the present invention, it is possible to stably project an image on a projection target using the built-in projector unit, and to improve operability during projection using the projector unit.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an external configuration of a mobile phone 1 applicable as a mobile terminal according to the present invention. 1A shows a configuration of an external appearance when the mobile phone 1 is opened at about 180 degrees, and FIG. 1B is a side view when the mobile phone 1 is opened. It shows the structure of the appearance.

  As shown in FIGS. 1A and 1B, the mobile phone 1 has a first housing 12 and a second housing 13 that are hinge-coupled with a hinge 11 at the center as a boundary. It is formed so as to be foldable in the direction of the arrow X via the part 11. A transmitting / receiving antenna (antenna 31 in FIG. 3 to be described later) is provided at a predetermined position inside the mobile phone 1, and radio waves are transmitted to and from a base station (not shown) via the built-in antenna. Send and receive.

  The first casing 12 is provided with operation keys 14 such as numeric keys “0” to “9”, a calling key, a redial key, an end / power key, a clear key, and an e-mail key on the surface. Various instructions can be input using the operation keys 14.

  The first casing 12 is provided with a cross key and a confirmation key at the top as the operation keys 14, and the cursor is moved in the vertical and horizontal directions when the user operates the cross key in the vertical and horizontal directions. be able to. Specifically, various operations such as a phone book list and an e-mail scrolling operation displayed on the main display 17 provided in the second housing 13, a simple homepage page turning operation, and an image sending operation are performed. Execute.

  Various functions can be confirmed by pressing the confirmation key. For example, in the first housing 12, a desired phone number is selected from a plurality of phone numbers in the phone book list displayed on the main display 17 in response to the operation of the cross key by the user, and the confirmation key is the first key. When pressed in the inner direction of the housing 12, the selected telephone number is confirmed and a calling process is performed on the telephone number.

  Further, the first casing 12 is provided with an e-mail key on the left side of the cross key and the confirmation key. When the e-mail key is pressed in the inner direction of the first casing 12, the mail You can call the send / receive function. A browser key is provided on the right side of the cross key and the confirmation key. When the browser key is pressed in the direction toward the inside of the first housing 12, it is possible to browse the data on the Web page.

  The first casing 12 is provided with a microphone 15 below the operation keys 14, and the microphone 15 collects the user's voice during a call. Further, the first casing 12 is provided with a side key 16 for operating the mobile phone 1.

  The first casing 12 has a battery pack (not shown) inserted on the back side. When the call end / power key is turned on, power is supplied from the battery pack to each circuit unit. Start in a possible state.

  On the other hand, the second housing 13 is provided with a main display 17 on the front side thereof, such as a radio wave reception state, a remaining battery level, a destination name registered as a telephone directory, a telephone number, and a transmission history. In addition, the contents of e-mail, a simple homepage, an image captured by a CCD (Charge Coupled Device) camera (CCD camera 20 in FIG. 2 described later), content received from an external content server (not shown), a memory card (described later) The content stored in the memory card 46) of FIG. 3 can be displayed. In addition, a receiver (receiver) 18 is provided at a predetermined position on the upper part of the main display 17 so that the user can make a voice call. Note that a speaker (speaker 50 in FIG. 3) as an audio output unit other than the receiver 18 is also provided at a predetermined position of the mobile phone 1.

  Magnetic sensors 19 a, 19 b, 19 c, and 19 d for detecting the state of the mobile phone 1 are provided at predetermined positions inside the first housing 12 and the second housing 13. Note that the main display 17 may be, for example, a display composed of an organic EL, or a liquid crystal display.

  FIG. 2 shows another external configuration of the mobile phone 1 applicable as a mobile terminal according to the present invention. The state of the cellular phone 1 in FIG. 2 is a state in which the cellular phone 1 is rotated in the arrow X direction from the state of the cellular phone 1 in FIG. Note that FIG. 2A illustrates the configuration of the external appearance viewed from the front when the mobile phone 1 is closed, and FIG. 2B illustrates the external configuration viewed from the side when the mobile phone 1 is closed. Represents the configuration. FIG. 2C shows an external configuration viewed from the back when the cellular phone 1 is closed.

  A CCD camera 20 is provided on the upper part of the second casing 13, and thus a desired subject can be imaged. A sub-display 21 is provided below the CCD camera 20 to display an antenna picture indicating the current antenna sensitivity level, a battery picture indicating the current battery level of the mobile phone 1, a current time, and the like. The A project unit 52 is provided on the upper portion of the first housing 12, and an arbitrary display image can be projected onto the projection target M.

  FIG. 3 shows an internal configuration of the mobile phone 1 applicable to the mobile terminal according to the present invention. A radio signal transmitted from a base station (not shown) is received by an antenna 31 and then input to a receiving circuit (RX) 33 via an antenna duplexer (DUP) 32. The receiving circuit 33 mixes the received radio signal with the local oscillation signal output from the frequency synthesizer (SYN) 34 and converts the frequency into an intermediate frequency signal (down-conversion). Then, the reception circuit 33 orthogonally demodulates the down-converted intermediate frequency signal and outputs a reception baseband signal. The frequency of the local oscillation signal generated from the frequency synthesizer 34 is instructed by a control signal SYC output from the control unit 41.

  The reception baseband signal from the reception circuit 33 is input to the CDMA signal processing unit 36. The CDMA signal processing unit 36 includes a RAKE receiver (not shown). In this RAKE receiver, a plurality of paths included in the received baseband signal are despread with each spreading code (that is, the same spreading code as that of the spread received signal). Then, the signals of the respective paths subjected to the despreading process are subjected to coherent Rake synthesis after the phase is adjusted. The data sequence after Rake combining is subjected to deinterleaving and channel decoding (error correction decoding), and then binary data determination is performed. Thereby, received packet data of a predetermined transmission format is obtained. This received packet data is input to the compression / decompression processor 37.

  The compression / decompression processing unit 37 is configured by a DSP (Digital Signal Processor) or the like, and the received packet data output from the CDMA signal processing unit 36 is separated for each medium by a demultiplexing unit (not shown). Each data is decrypted. For example, in the call mode, audio data corresponding to call voice included in the received packet data is decoded by a speech codec. Also, if the received packet data includes moving image data, such as the videophone mode, this moving image data is decoded by a video codec. Further, if the received packet data is a download content, the download content is decompressed, and then the decompressed download content is output to the control unit 41.

  The digital audio signal obtained by the decoding process is supplied to the PCM codec 38. The PCM codec 38 PCM-decodes the digital audio signal output from the compression / decompression processor 37 and outputs the analog audio data signal after PCM decoding to the reception amplifier 39. The analog audio signal is amplified by the reception amplifier 39 and then output from the receiver 18.

  The digital moving image signal decoded by the video codec by the compression / decompression processing unit 37 is input to the control unit 41. The control unit 41 displays a moving image based on the digital moving image signal output from the compression / decompression processing unit 37 on the main display 17 via a video RAM (for example, a VRAM) (not shown). The control unit 41 can display not only the received moving image data but also the moving image data captured by the CCD camera 20 on the main display 17 via a video RAM (not shown).

  Further, when the received packet data is an electronic mail, the compression / decompression processing unit 37 supplies the electronic mail to the control unit 41. The control unit 41 stores the electronic mail supplied from the compression / decompression processing unit 37 in the storage unit 42. Then, the control unit 41 reads out the electronic mail stored in the storage unit 42 in accordance with the operation of the operation key 14 as an input unit by the user, and displays the read electronic mail on the main display 17.

  On the other hand, in the call mode, the voice signal (analog audio signal) of the speaker (user) input to the microphone 15 is amplified to an appropriate level by the transmission amplifier 40 and then PCM encoded by the PCM codec 38. The digital audio signal after the PCM encoding is input to the compression / decompression processing unit 37. The moving image signal output from the CCD camera 20 is digitized by the control unit 41 and input to the compression / decompression processing unit 37. Further, an electronic mail which is text data created by the control unit 41 is also input to the compression / decompression processing unit 37.

  The compression / decompression processor 37 compresses and encodes the digital audio signal output from the PCM codec 38 in a format corresponding to a predetermined transmission data rate. Thereby, audio data is generated. The compression / decompression processing unit 37 compresses and encodes the digital moving image signal output from the control unit 41 to generate moving image data. Then, the compression / decompression processing unit 37 multiplexes these audio data and moving image data by a demultiplexing unit (not shown) according to a predetermined transmission format, and then packetizes them. Output to. Note that the compression / decompression processing unit 37 also multiplexes the e-mail into the transmission packet data even when the e-mail is output from the control unit 41.

  The CDMA signal processing unit 36 performs spread spectrum processing on the transmission packet data output from the compression / decompression processing unit 37 using a spreading code assigned to the transmission channel, and transmits the output signal after the spread spectrum processing to the transmission circuit ( TX) 35. The transmission circuit 35 modulates the signal after the spread spectrum processing using a digital modulation method such as a QPSK (Quadrature Phase Shift Keying) method. The transmission circuit 35 combines the digitally modulated transmission signal with a local oscillation signal generated from the frequency synthesizer 34 and frequency-converts (up-converts) the signal into a radio signal. Then, the transmission circuit 35 amplifies the radio signal generated by this up-conversion with high frequency so that the transmission power level instructed by the control unit 41 is obtained. The radio signal amplified by the high frequency is supplied to the antenna 31 via the antenna duplexer 32 and transmitted from the antenna 31 to a base station (not shown).

  The mobile phone 1 also includes an external memory interface 45. The external memory interface 45 has a slot into which the memory card 46 can be attached and detached. The memory card 46 is a type of flash memory card typified by a NAND flash memory card or a NOR flash memory card, and can write and read various data such as images, sounds and music via a 10-pin terminal. It has become. Further, the mobile phone 1 is provided with a clock circuit (timer) 47 for measuring the current accurate current time.

  The control unit 41 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory). The CPU is loaded into the RAM from the program stored in the ROM or the storage unit 42. In addition to executing various processes according to various application programs including an operating system (OS), the mobile phone 1 is comprehensively controlled by generating various control signals and supplying them to each unit. The RAM appropriately stores data necessary for the CPU to execute various processes.

  The storage unit 42 is composed of, for example, a flash memory element or HDD (Hard Disc Drive) which is a non-volatile memory that can be electrically rewritten and erased, and various application programs executed by the CPU of the control unit 41 and various types. The data group is stored.

  The power supply circuit 44 generates a predetermined operating power supply voltage Vcc based on the output of the battery 43 and supplies it to each circuit unit. The terrestrial digital one seg receiver 48 receives a terrestrial digital one seg broadcast wave or a terrestrial digital radio broadcast wave from a broadcast station (not shown), and receives the received terrestrial digital one seg broadcast wave or terrestrial digital radio broadcast. A TS (Transport Stream) signal based on the wave is supplied to the terrestrial digital processing unit 49. When the terrestrial digital one seg broadcasting wave is received by the terrestrial digital one seg receiving unit 48, the terrestrial digital processing unit 49 generates a sound from the TS signal based on the terrestrial digital one seg broadcasting wave from the terrestrial digital one seg receiving unit 48. The data and video data are separated into ES (Elementary Stream), respectively, and the separated audio data is decoded by a sound decoder (not shown) in the terrestrial digital processing unit 49 by a predetermined decoding method and separated. The video data is decoded by a video decoder (not shown) in the terrestrial digital processing unit 49 by a predetermined decoding method, and the decoded digital audio signal and digital moving image signal are supplied to the control unit 41.

  The wireless LAN communication unit 51 performs wireless LAN communication conforming to a predetermined standard such as IEEE802.11a / b / g via a built-in antenna (not shown).

  The projector unit 52 is an image projection unit, and includes a light source, a condenser lens, a liquid crystal unit, a liquid crystal drive unit, a projection lens (all not shown), and the like, and a display image based on display image data from the control unit 41. Is projected onto the projection target M.

  A GPS wave (GPS information) from a GPS satellite (not shown) is received by the GPS antenna 53. This GPS information includes, for example, transmission time information from each GPS satellite. Thereafter, the GPS information is input to the control unit 41 via the CDMA signal processing unit 36. Then, the control unit 41 calculates position information (latitude and longitude information) indicating the current location of the mobile phone 1 using the acquired GPS information (for example, it is desirable to calculate from 3 to 4 GPS information). ), Position information indicating the current location of the mobile phone 1 is obtained.

  Next, image projection display processing using the projector unit 52 in the mobile phone 1 of FIG. 3 will be described with reference to the flowchart of FIG. This image projection display process is started when the user operates the operation key 14 to accept selection of an image projection menu on the menu screen.

  In step S1, the control unit 41 controls the main display 17 to display a menu screen on the standby screen. The main display 17 displays a menu screen on the standby screen according to the control of the control unit 41. In step S <b> 2, the control unit 41 determines whether or not selection of an image projection menu is accepted on the menu screen when the operation key 14 is operated by the user.

  If the control unit 41 determines in step S2 that the selection of the image projection menu has been accepted on the menu screen, the control unit 41 controls the main display 17 to display the projection image selection screen in step S3. The main display 17 displays a projection image selection screen according to control. On this projection image selection screen, a plurality of candidate images to be projected and displayed on the projection object M are displayed. The plurality of candidate images include images based on image data stored in the storage unit 42, images based on various image data acquired via a base station via a network (not shown), and the like.

  In step S <b> 4, the control unit 41 accepts selection of an image to be projected and displayed on the projection target M from among a plurality of candidate images by operating the operation key 14 by the user. In step S <b> 5, the control unit 41 determines whether or not the image to be projected and received whose selection has been received is the current display image displayed on the main display 17. When the control unit 41 determines in step S5 that the image to be projected and received for selection is not the current display image displayed on the main display 17, the control unit 41 receives the selection in step S6. The image data to be projected and displayed (image data related to an image other than the current display image displayed on the main display 17) is supplied to the projector unit 52. The projector unit 52 acquires the image data to be displayed by projection from the control unit 41 for which the selection has been accepted, and projects an image based on the acquired image data to be displayed for projection onto the projection object M.

  On the other hand, when the control unit 41 determines in step S5 that the image to be projected and received for selection is the current display image displayed on the main display 17, the control unit 41 selects in step S7. The received current display image data is supplied to the projector unit 52. The projector unit 52 acquires image data to be projected and received (current display image data displayed on the main display 17) from the control unit 41, and displays a display image based on the acquired current display image data. Is projected onto the projection target M.

  In step S <b> 8, the control unit 41 determines whether or not an instruction to end the image projection display process has been received when the operation key 14 is operated by the user. If the control unit 41 determines in step S8 that an instruction to end the image projection display process has not been received, the process returns to step S3, and the processes in and after step S3 are repeatedly executed. Thus, the image projection display process is repeatedly executed until an instruction to end the image projection display process is received. That is, the projection image selection screen is displayed again, selection of the projection display image is accepted on the projection image selection screen, and the projection display image whose selection is accepted is projected onto the projection object M. On the other hand, when the control unit 41 determines in step S8 that an instruction to end the image projection display process has been received, the image projection display process ends. When the control unit 41 determines in step S2 that the selection of the image projection menu is not accepted on the menu screen, the image projection display process ends.

  By the way, when an image is projected onto the projection object M using the projector unit 52 provided in the mobile phone 1, it is necessary to stabilize the mobile phone 1 on which the projector unit 52 is mounted using any method. As a method, for example, a method in which a user projects with the mobile phone 1 held in his / her hand, a method in which some support structure is added to the mobile phone 1 and the mobile phone 1 is supported using this support structure during projection, or A method of placing and fixing the mobile phone 1 on a desk can be considered.

  Further, in JP 2005-204005 A, JP 2001-326711 A, and JP 2002-295445 A, although different from the projector unit 52, for example, as shown in FIG. Techniques relating to how to use and stabilize shooting have been proposed.

  However, since the projector unit 52 itself is a relatively large component (for example, a component of about 10 cc), when the projector unit 52 is attached to the thin upper housing (second housing 13) side, Whichever method is used to stabilize the mobile phone 1, it becomes difficult to use due to the thickness of the projector unit 52.

  Therefore, the projector unit 52 is provided in the vicinity of the hinge unit 11 of the foldable mobile phone 1 (the mobile phone 1 that can be folded in two) as shown in FIGS. 1 and 2, and image projection display using the projector unit 52 is performed. At the time of processing, the cellular phone 1 is opened and held at a small angle θ to stabilize the cellular phone 1 in an inverted V shape so that the projector unit 52 is held at a high position. Hereinafter, a fixing method at the time of image projection display of the mobile phone 1 using this method will be described.

  FIG. 6 shows a method of fixing the cellular phone 1 during image projection display using the projector unit 52 according to the present invention. As shown in FIG. 6, the projector unit 52 is provided on the upper portion of the first casing 12 (lower casing), and hinges that hinge-couple the first casing 12 and the second casing 13. It is provided near the portion 11. The hinge portion 11 has a locking mechanism that latches (locks) at a small angle θ1 when the mobile phone 1 is opened. Thereby, the mobile phone 1 can be stabilized on the desk N (having a substantially horizontal surface) in an inverted V shape during image projection display, and an image can be projected onto the projection target M. Note that since the opening angle θ1 for opening the mobile phone 1 at the time of image projection display is a very small angle, it is not necessary to correct the keystone of the projection image projected onto the projection target M, but the mobile phone at the time of image projection display. Since the angle θ1 at which 1 is opened is a known value, fixed trapezoidal correction may be performed on the projection image projected onto the projection object M.

  FIG. 7 shows another fixing method of the mobile phone 1 at the time of image projection display using the projector unit 52 according to the present invention. As shown in FIG. 7, anti-slip portions 61-1 and 61-2 are provided at the bottoms of the first casing 12 and the second casing 13 so that the mobile phone 1 does not slip during the image projection display process. May be provided. The anti-slip portions 61-1 and 61-2 are made of, for example, hard rubber made of resin. Of course, it is only necessary to prevent the mobile phone 1 from slipping during the image projection display process, and the anti-slip portion 61 is provided at the bottom of either the first housing 12 or the second housing 13. May be. For example, as shown in FIGS. 8A and 8B, each of the anti-slip portions 61-1 and 61-2 is formed with a required length along the bottom of each housing of the mobile phone 1. Alternatively, as shown in FIGS. 8C and 8D, a plurality of pieces may be formed with a required length along the bottom of each housing of the mobile phone 1. . Thereby, the stability of the mobile phone 1 during the image projection display process can be further enhanced.

  Note that, for example, if the mobile phone 1 is fixed at the time of image projection display by the fixing method shown in FIG. 6 or FIG. Therefore, for example, as illustrated in FIG. 9, an operation unit 62 related to the projector unit 52 may be provided on the upper portion of the first housing 12. The operation unit 62 is provided with buttons such as play, stop, and pause. Thereby, at the time of image projection display, for example, the user can operate the operation unit 62 from above with the mobile phone 1 being fixed by the fixing method shown in FIG. 6 or FIG. Fewer operations can be performed, and operability during image projection display can be improved.

  Note that the operation unit 62 only needs to be provided at a position where it can be operated from the outside during image projection display using the projector unit 52, and is not limited to the upper portion of the first housing 12 shown in FIG. The operation unit 62 may be provided on the upper portion of the second casing 13, or the operation unit 62 may be provided on the side surface of the first casing 12 or the second casing 13. The operation unit 62 may be provided as a dedicated operation unit, or may be used as another operation unit.

  In addition, the mobile phone 1 is opened at the angle θ1 at the time of image projection display. However, in order to correct distortion of the projected image, in the above description, the mobile phone 1 is fixed to the projected image projected onto the projection target M. Although the keystone correction is performed, in addition to this, as shown in FIG. 10, for example, the projector unit 52 itself is provided so as to be inclined at a required angle in consideration of the opening angle θ1 of the mobile phone 1. It may be. In other words, when the projector unit 52 projects an image based on the image data onto the projection target M, the projection light plane P formed by the projection light is set to be perpendicular to the substantially horizontal plane of the desk N. To do. Thereby, an image can be projected in parallel with respect to the projection surface on the projection target M installed substantially perpendicular to the desk N.

  Further, in the case of FIGS. 6 and 7, etc., the hinge portion 11 has a locking mechanism that latches (locks) at a small angle θ1 when the cellular phone 1 is opened. For example, FIG. And as shown in (B), a plurality of angles to be locked (such as angles θ1 and θ2) may be provided. In the case of FIG. 11B, an image can be projected upward on the projection target M. At this time, in order to correct distortion of the projected image, different trapezoidal correction may be performed on the projected image projected onto the projection target M in accordance with the magnitude of the angle θ1 or θ2. Good. Further, although the hinge portion 11 is provided with a locking mechanism that locks at the angles θ1 and θ2, any locking method may be used. At this time, for example, a locking button 63 is provided as shown in FIG. In this way, the locking button 63 may be pressed and locked at an arbitrary angle desired by the user.

  Note that the present invention is not limited to the foldable mobile phone shown in FIGS. 1 and 2, and can be applied to a flipper mobile phone. In addition, in the case of a two-axis rotation type mobile phone among the folding type mobile phones as shown in FIGS. 1 and 2, the second casing 13 is turned over as shown in FIG. After the main display 17 is exposed to the outside, the user may cause the mobile phone 1 to display the projected image by operating the operation unit 62 while viewing the screen displayed on the main display 17. .

  The present invention can be applied to a PDA (Personal Digital Assistant), a personal computer, a portable game machine, a portable music player, a portable video player, and other portable terminals in addition to the cellular phone 1. it can.

The figure which shows the structure of the external appearance of the mobile telephone applicable to the portable terminal which concerns on this invention. The figure which shows the structure of the other external appearance of the mobile telephone applicable to the portable terminal which concerns on this invention. The block diagram which shows the internal structure of the mobile telephone applicable to the portable terminal which concerns on this invention. 4 is a flowchart for explaining image projection display processing in the mobile phone of FIG. 3. Explanatory drawing explaining the conventional fixing method for fixing a CCD camera independently. The figure which shows the fixing method of the mobile telephone at the time of the image projection display using the projector part which concerns on this invention. The figure which shows the other fixing method of the mobile telephone at the time of the image projection display using the projector part which concerns on this invention. The figure which shows the slip prevention part provided in a mobile telephone. The figure which shows the position in which the operation part for operating a projector part is provided. Explanatory drawing explaining the inclination method of a projector part. The figure which shows the latching mechanism which latches in the state which opened the mobile telephone at a different angle. The figure which shows the latching mechanism latched in the state which opened the mobile telephone using the latching button. The figure which shows the structure of the other external appearance of the mobile telephone applicable to the portable terminal which concerns on this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Mobile phone, 11 ... Hinge part, 12 ... 1st housing | casing, 13 ... 2nd housing | casing, 14 ... Operation key, 15 ... Microphone, 16 ... Side key, 17 ... Main display, 18 ... Receiver, 19a Thru 19d ... magnetic sensor, 20 ... CCD camera, 21 ... sub-display, 31 ... antenna, 32 ... antenna duplexer (DUP), 33 ... receiving circuit (RX), 34 ... frequency synthesizer (SYN), 35 ... transmitting circuit ( TX), 36 ... CDMA signal processing unit, 37 ... compression / decompression processing unit, 38 ... PCM codec, 39 ... receiving amplifier, 40 ... transmission amplifier, 41 ... control unit, 42 ... storage unit, 43 ... battery, 44 ... power source Circuit: 45 External memory interface 46 Memory card 47 Clock circuit 48 Terrestrial digital one-segment receiver 49 Terrestrial digital processing unit 5 ... speaker, 51 ... wireless LAN communication unit, 52 ... projector unit, 53 ... GPS antenna, 61 (61-1 and 61-2) ... slip unit, 62 ... operation section, 63 ... locking button.

Claims (9)

Image projection means for projecting an image based on the image data onto the projection target;
An opening / closing mechanism in which the first housing and the second housing are hinge-coupled via a hinge portion, and the first housing and the second housing are opened / closed via the hinge portion;
A locking mechanism for locking an opening / closing operation by the opening / closing mechanism in a state where the first casing and the second casing are opened at a predetermined angle by the opening / closing mechanism;
The opening / closing operation by the opening / closing mechanism is locked by the locking mechanism, and the first casing and the second casing are opened in a required angle and are substantially inverted V-shaped. A portable terminal mounted on a horizontal plane, wherein the image projecting means projects an image based on the image data onto the projection target.   The portable terminal according to claim 1, wherein the thickness of the first casing is larger than the thickness of the second casing.   The portable terminal according to claim 2, wherein the image projection unit is provided in the vicinity of the hinge portion in the first casing.   The portable terminal according to claim 1, wherein an anti-slip portion is provided at a contact portion that contacts the substantially horizontal plane in a state where the portable terminal is substantially inverted V-shaped.   An anti-slip portion is provided in at least one of a contact portion of the first casing that contacts the substantially horizontal plane and a contact portion of the second casing that contacts the substantially horizontal plane. The mobile terminal according to claim 4.   The portable terminal according to claim 4, wherein the anti-slip portion is made of resin.   The mobile terminal according to claim 1, wherein an operation unit for the image projecting unit is provided at a position operable from outside in the mobile terminal.   The projection light plane formed by the projection light when the image projection unit projects an image based on the image data onto the projection target is set perpendicular to the substantially horizontal plane. The mobile terminal according to 1.   The locking mechanism is configured to lock an opening / closing operation by the opening / closing mechanism in a state where the first casing and the second casing are opened at at least two different angles. The mobile terminal according to claim 1.

Images