JP2005025105A - Communication device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple structured communication device for projecting an image. <P>SOLUTION: A first casing 100 comprising a slide 110 having a second display part 17 and a lens 150, and a switch 120, and a second casing 200 having an antenna 2 and an imaging part 18, are foldable in the direction of A or B of the arrow in the illustration, a hinge part 300 being the axis. By sliding the slide 110 upward as indicated in Fig. 2, the slide 110 is positioned over the second display part 17. By outputting the image information displayed on the second display part 17 externally through the lens 150 of the cover 110, the image information displayed on the second display part 17 is imaged on an external screen. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a communication device such as a mobile phone device capable of projecting an image.

  In recent years, mobile phone devices equipped with a CCD (Charge Coupled Device) image sensor having 1 million pixels or more have been commercialized. Thus, not only current mobile phone devices have functions for calling and mailing, but also digital cameras. It came to be equipped with the same imaging function.

  However, since the size of the display unit mounted on the mobile phone is limited by the size of the case of the mobile phone, even if a landscape is taken with a CCD camera having a high number of pixels, the captured landscape is reduced to a small display unit. Can only be displayed.

Therefore, a technique has been proposed that enables display on a large screen while maintaining the miniaturization of the housing. For example, in Patent Document 1, a light source, a transmissive liquid crystal panel, and a projection lens are arranged in a mobile phone, A technique for projecting an image from a telephone toward a foldable large screen is described.
JP2003-101909A (5th page, FIG. 1)

  However, in the technique described in the cited document 1, it is necessary to separately provide a light source for projecting image information on a screen, a transmissive liquid crystal panel, a projection lens, etc. in addition to a display unit for displaying a telephone number, a nomination, and the like. In addition, mounting these parts for projecting image information not only increases the cost, but also hinders the miniaturization of the mobile phone.

  The present invention is for solving such a problem, and the communication device according to claim 1 is a communication device including a display unit and a cover on which a lens is formed, and the cover includes the display unit. When the cover is located on the display unit, the image information displayed on the display unit can be used as an image for projection when the cover is located on the display unit. It is possible to output to the outside through the lens.

  According to a second aspect of the present invention, there is provided a communication device including a first housing having a first display portion, a second display portion, and a cover on which a lens is formed, and a second housing having an input portion. The first display unit is in a position facing the input unit when the housing is closed, and the second display unit is connected to the first display unit. Installed on the rear surface of the arranged surface, the cover is movable to a state positioned on the second display unit and a state not to be, and in a state where the cover is positioned on the second display unit The image information displayed on the second display unit can be output to the outside through the lens as an image for projection.

  A communication device according to a third aspect is the communication device according to the second aspect, wherein the first casing is formed with a groove portion for allowing the cover to slide, and the cover is provided with the groove portion. A protruding part to be slid is formed, and the cover is slidable on the groove part in a state where the protruding part is slid on the groove part.

  A communication device according to a fourth aspect is the communication device according to the second or third aspect, wherein the communication device includes an input unit and a control unit, and the control unit has the cover that is the second display. If it is determined that there is an instruction from the input unit to display the image information to be displayed on the second display unit in a state of being rotated 90 degrees rightward or leftward in a state of being positioned on the unit, the second display unit The second display unit is controlled to display image information displayed on the display unit in a state rotated 90 degrees rightward or leftward.

  The present invention has a structure in which image information is displayed on a second display unit for displaying a telephone number, a name, and the like, and the image information displayed on the second display unit is projected onto a screen through a lens. Therefore, it is possible to project image information on a screen simply by providing a separate lens in addition to the display unit, and it is possible not only to avoid an increase in cost, but also to reduce the size of the mobile phone. There is no hindrance.

  In addition, the projection image information is automatically displayed on the display unit in the projection mode when the cover on which the lens is mounted is closed, and nothing is displayed on the display unit in the projection mode. Yes. Therefore, even if the user does not perform a special operation, the display unit can take an appropriate display form according to the open / closed state of the cover, and it is possible to avoid wasteful power consumption. is there.

  Furthermore, the screen can be changed to a horizontal display or a vertical display in accordance with a user instruction in a state where image information for projection is displayed on the display unit. For this reason, it is possible to switch to a user-friendly screen (vertical screen or horizontal screen) regardless of whether the mobile phone is placed vertically or horizontally.

  1 and 2 are perspective views of an embodiment device to which the present invention is applied.

  A communication device (for example, a mobile phone device) shown in FIG. 1 includes a first housing 100 on which a first display unit 16 made of, for example, a liquid crystal display device is mounted, a numeric keypad 211, a call key 222, a disconnect key 223, and mode switching. This is a foldable mobile phone device in which a key 224 and a second housing 200 on which an open / close detection unit (not shown) is mounted are connected via a hinge unit 300 so as to be opened and closed. Further, the cellular phone device shown in FIG. 1 can be opened and closed in an arrow A direction or a B direction.

  The opening / closing detection unit (not shown) will be described in detail. A convex portion is provided on the first casing 100 or the second casing 200, while the second casing 200 or the first casing 100 is provided. An open / close detection unit that is a recess is provided, and when the casing is closed, the projection presses the recess to detect that the casing is closed.

  FIG. 2 is a perspective view of the mobile phone device shown in FIG.

  In FIG. 2, the first housing 100 has a second display unit 17, a cover 110 of the second display unit 17, and a switch 120 for releasing the movement of the cover 110. It can move in the direction of arrow C or D in FIG. The switch 120 can be moved downward in FIG. 2 by sliding the switch 120 to the left in FIG. 2 while the cover 110 is in the upper position. When the cover 120 is in the lower part of FIG. 2, the user slides the cover 110 upward in FIG. 2 while the switch 120 is slid to the left in FIG. 2 can move upwards.

  The groove portion 130 is a groove for sliding the cover 110, and the cover 110 is formed with a lens 150 for outputting image information displayed on the second display portion 17 to the outside.

  On the other hand, the second housing 200 includes the antenna 2 and the imaging unit 18.

  3 is a perspective view showing the vicinity of the cover 110 shown in FIG.

  In FIG. 3, the cover 110 has a protruding portion 111 extending in the longitudinal direction of the cover 110 with a substantially L-shaped cross section, and the protruding portion 111 is formed in a groove portion 130 formed in the first housing 100. The cover 110 can be slid along the groove 130 by being fitted into the groove 130. Since the cover 110 is made of, for example, resin, the cover 110 can be bent and fitted into the groove 130 in the manufacturing process.

  FIG. 4 is a block diagram of a mobile phone device as an embodiment device to which the present invention is applied.

  In FIG. 4, the communication unit 1 transmits a signal from a baseband unit 3 to be described later to the base station via the antenna 2 and receives a radio wave from the base station via the antenna 2.

  The baseband unit 3 includes a CDMA (Code Division Multiple Access SS) processing circuit 31 and an audio codec processing circuit 32. The CDMA processing circuit 31 performs code division multiple access, scrambling, error control, timing detection, and the like. The voice codec processing circuit 32 compresses (encodes) and decompresses (decodes) the voice, converts an analog signal and a digital signal, and receives a sound volume and a microphone by an internal amplifier circuit (not shown). Change the sensitivity.

  The speaker 4 used for a call converts the electrical signal from the switching circuit 10 amplified by the amplifier 5 into an audio signal. The microphone 6 used for a call converts an audio signal into an electric signal and outputs it to the amplifier 7. The electric signal amplified by the amplifier 7 is output to the switching circuit 10. Further, the speaker 8 outputs a ringing tone or a melody amplified by the amplifier 9.

  The switching circuit 10 turns on / off the connection between the three amplifiers 5, 7, 9 and the baseband unit 3 under the control of the control unit 1111 described later. Note that these amplifier circuits have fixed gains, and the received sound volume, key click sound volume, and microphone sensitivity cannot be changed. The voice codec 32 of the baseband unit 3 changes the reception volume, key click volume, and microphone sensitivity under the control of the control unit 1111.

  The control unit 11 including a microprocessor controls each unit based on a system program stored in a first storage unit 12 including, for example, a ROM (Read Only Memory).

  The second storage unit 13 includes, for example, a static random access memory (SRAM), and stores image information received wirelessly and image information input from the imaging unit 18 described later.

  Note that a memory card separately storing image information may be configured to be detachable from the mobile phone, and the image information read from the memory card may be stored in the second storage unit 13.

  The input unit 15 includes various keys such as a numeric keypad 211, a call key 222, a disconnect key 223, and a mode switching key 224. The mode switching key 224 is a key for setting a mode for projecting an image.

The first display unit 16 includes, for example, a liquid crystal display device, and can display moving images, still images, mail contents, telephone numbers, and the like. The first display unit 16 is displayed when the casing is opened, and nothing is displayed when the casing is closed.

The second display unit 17 is composed of, for example, a liquid crystal display device, and displays the reception intensity of the radio wave, the remaining battery level, the current time, etc. in the standby state with the cover 110 opened. And name. On the other hand, when the cover 110 is closed, the image information to be projected on the screen is displayed.

  The imaging unit 18 is formed of a CCD (Charge Coupled Device), for example, and outputs image information to the control unit 11. The image information output to the control unit 11 is subjected to image processing such as compression and decompression in the control unit 11.

  The cover 110 opening / closing detection unit 19 detects the opening / closing of the cover 110, which will be described in detail later.

  The case opening / closing detection unit 20 detects opening / closing of the case.

  FIG. 5 is a partially transparent view showing a state around the switch 120 when the cover 110 is opened and closed.

  FIG. 5A shows a state in which the cover 110 is closed, and the first partition 124 and the second partition 125 are both formed inside the housing. A shaft 126 integrally formed with the switch 120 is inserted between the first partition 124 and the second partition 125. A spring 122 is wound around a shaft 126 that exists between the first partition 124 and the second partition 125. Further, a flange portion 123 is formed in a shaft portion 126 portion existing between the spring 122 and the second partition wall 125, and by the formation of the flange portion 123, the force of the spring 122 is used. The tip end of the shaft portion 126 protrudes from the second partition wall 125.

  When the cover 110 is closed, the tip end of the shaft portion 126 protrudes in the direction of arrow E by the force of the spring 122. Further, the tip of the shaft portion 126 abuts against the bottom portion of the cover 110, thereby preventing the cover 110 from being lowered.

  When the user moves the switch 120 in the direction opposite to the arrow F in the state shown in FIG. 5A, the cover 110 moves leftward in FIG. 5 (downward in FIG. 2) as shown in FIG. 5B. can do. When the user releases the switch 120 after moving the cover 110 to the left, the tip of the shaft portion 126 abuts against the side surface of the cover 110 (the protruding portion 111 shown in FIG. 3) by the force of the spring 122, and the cover 110 is Maintained open.

  FIG. 6 is a partially transparent perspective view of the switch 120 portion.

  In FIG. 6, the side surface of the flange portion 123 on the spring 122 side (first partition wall 124 side) is coated with a metal such as a magnet. On the other hand, a cover opening / closing detection part 19 for detecting the open / close state of the cover 110 is formed on the side surface of the first partition wall 124 between the spring 122 and the flange part 123, as shown in FIG. (The central hole is a hole through which the shaft portion 126 passes). When the cover 110 is closed, the flange 123 and the cover open / close detection unit 19 are electrically connected, and the cover open / close detection unit 19 is electrically short-circuited, and the control unit 11 detects this state. Thus, the control unit 11 determines that the cover 110 is closed. On the other hand, when the cover 110 is open, the flange 123 and the cover open / close detection unit 19 are not electrically connected, and the cover open / close detection unit 19 is electrically open. Is detected by the control unit 11, the control unit 11 determines that the cover 110 is open.

  The operation of such a communication apparatus will be described below with reference to the flowchart shown in FIG.

    In step S1, the control unit 11 determines whether the current image information is in a projection mode for projecting onto the screen. Specifically, when the control unit 11 determines that there is an instruction operation to switch to the projection mode from the input unit 15, information indicating that is stored in the second storage unit 13, and the information is stored in the second storage unit. As long as it is stored in 13, the projection mode is determined, and the process proceeds to step S2, and if not, the process proceeds to step S8.

  In step S2, the control unit 11 determines whether or not the cover 110 is in a closed state. Specifically, when detecting a signal indicating that the cover 110 is in the closed state from the cover open / close detection unit 19, the control unit 11 proceeds to step S4, and otherwise proceeds to step S3.

  In step S3, the control unit 11 displays a message indicating that the mode is the projection mode, for example, “Please close the cover during the projection mode” on the second display unit 17, and the process returns to step S2.

  In step S4, the control unit 11 switches the second display unit 17 to a display for projection. That is, the image information for projection is reduced and displayed according to the shape of the lens, the image is reversed left and right (up and down), the brightness of the backlight is increased, the detailed display content for enlargement is switched, The image information expanded in the horizontal direction or the vertical direction is displayed, and the process proceeds to step S5. The image information for projection may be image information received from the other party via the baseband unit 3 or may be image information stored in the second storage unit 13.

  In step S5, if the control unit 11 determines that there is an instruction from the input unit 15 to change the display direction from vertical to horizontal, the process proceeds to step S6. Otherwise, the process proceeds to step S7.

  In step S6, the control unit 11 projects the image information sideways with respect to the housing in order to project the image information as shown in FIG.

on the other hand,
In step S7, the control unit 11 projects the image information vertically with respect to the housing in order to project the image information as shown in FIG.

  In step S8, the control unit 11 proceeds to step S9 when detecting a signal indicating that the cover 110 is closed from the cover opening / closing detection unit 19, and proceeds to step S10 if not.

  In step S9, the control unit 11 prohibits the display operation of the second display unit 17 and returns the process to step S1.

  In step S10, when the control unit 11 detects a signal indicating that the housing is open from the housing opening / closing detection unit 20, the process proceeds to step S11, and if not, the processing proceeds to step S12. Proceed.

  In step S <b> 11, the control unit 11 prohibits display on the second display unit 17.

  In step S <b> 12, the control unit 11 displays the current time, the remaining battery level, and the like on the second display unit 17.

  As described above, in the device of this embodiment, the second display unit 17 can be used not only as a display device for displaying the remaining battery level but also as a display device for projection. Image information can be projected at a low cost and with a small number of parts.

  Further, since the orientation of the image information to be projected can be changed according to the orientation of the housing, the image information is not projected upside down regardless of the orientation of the mobile phone.

It is a front perspective view of an example device to which the present invention is applied. It is a back surface perspective view of a present Example apparatus. FIG. 5 is a perspective view of the periphery of a cover 110. It is a block diagram of a present Example apparatus. 2 is a partial transmission diagram in the vicinity of a switch 120. FIG. FIG. 6 is a partial transmission diagram around a cover 110 opening / closing detection unit. It is a figure which shows the cover opening / closing detection part 19. FIG. It is a flowchart which shows operation | movement of a present Example apparatus. It is a figure which shows embodiment of an Example apparatus. It is a figure which shows embodiment of an Example apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Control part 17 2nd display part 19 Cover opening / closing detection part 20 Housing | casing opening / closing detection part 100 1st housing | casing 110 Cover 120 Switch 122 Spring 126 Shaft part 130 Groove part 150 Lens 200 2nd housing | casing

Claims (4)

A communication device having a display unit and a cover on which a lens is formed;
The cover is movable from a state positioned on the display unit to a state not positioned on the display unit, and in a state where the cover is positioned on the display unit, an image displayed on the display unit is displayed. A communication apparatus characterized in that information can be output to the outside as an image for projection via the lens. A first housing having a first display portion, a second display portion, and a cover on which a lens is formed, and a second housing having an input portion are connected via a hinge portion so as to be opened and closed. The first display unit is in a position facing the input unit when the housing is closed, and the second display unit is installed on the back surface of the surface on which the first display unit is arranged. ,
The cover is movable between a state positioned on the second display unit and a state not positioned on the second display unit. When the cover is positioned on the second display unit, the cover is displayed on the second display unit. The communication apparatus is capable of outputting the image information as a projection image to the outside through the lens. The communication device according to claim 2, wherein the first casing is formed with a groove portion that allows the cover to slide, and the cover is formed with a projection portion that slides into the groove portion. The communication device is characterized in that the cover is slidable on the groove part in a state where the protrusion part slides on the groove part. The communication device according to claim 2 or 3,
The communication device includes an input unit and a control unit,
The control unit is configured to display the image information displayed on the second display unit in a state where the cover is positioned on the second display unit and rotated 90 degrees rightward or leftward. If it is determined that there is an instruction from the unit, the second display unit is controlled to display the image information displayed on the second display unit in a state rotated 90 degrees rightward or leftward. Communication device.

Images