JP2012093556A - Portable electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable electronic apparatus capable of highly efficiently using an image projection section.SOLUTION: This portable electronic apparatus includes; a housing; a screen 12 provided in the housing, and an image projection section 30 provided in the housing and projecting an image on the screen and an external projection area outside the housing. The image projection section includes an irradiation device 32 for outputting light, and an optical member reflecting a part of the light emitted from the irradiation device, projecting it to the screen, letting the light pass therethrough and projecting the image on the external projection area.

Description

  The present invention relates to a portable electronic device having a function of projecting an image.

  Conventionally, as a device for projecting an image on a wall surface or a screen, there is a so-called projector. This projector is mainly a so-called stationary apparatus that is supplied with power from a commercial power source and is used in a fixed state. This stationary projector projects an image on a fixed wall or screen in a fixed state.

  In contrast, in recent years, portable projectors that are small and easy to carry have been proposed. For example, in Patent Document 1, in a mobile phone provided with a display for displaying an image and a display control means for supplying an image signal to the display based on display data, the mobile phone body is replaced with a display. A mobile phone is provided that is detachably attached and includes a projector for projecting an image displayed on a display to the outside, and the display control means supplies an image signal corresponding to the projection to the outside to the projector. Has been.

JP 2005-51600 A

  However, if the projector is used only when an image is projected as in the technique described in Patent Document 1, the projector cannot be fully utilized.

  An object of this invention is to provide the portable electronic device which can utilize a projector more efficiently.

  In order to solve the above-described problems and achieve the object, a portable electronic device according to the present invention includes a casing, a screen provided in the casing, and the screen and the casing provided in the casing. And an image projection unit that projects an image onto a projection area outside the body.

  Here, the image projection unit projects an image on the screen by irradiating a part of the light emitted from the irradiation device that outputs the light constituting the image and in a predetermined direction. It is preferable to include an optical member that passes the other part of the light emitted from the irradiation device as it is and projects the image onto an external projection region.

  The image projecting unit outputs an illuminating device that outputs light constituting the image, a first posture that reflects the light emitted from the illuminating device in a predetermined direction, and projects the image onto the screen; and It is preferable to include an optical mechanism that switches the second posture in which the light emitted from the irradiation device is passed as it is and the image is projected onto an external projection region.

  Further, the image projection unit is a scanning image projection mechanism that scans the light by the irradiation device and projects an image of one frame, and each time a predetermined region of the frame is projected by the irradiation device. Preferably, the optical member switches between the first posture and the second posture, and projects an image for one frame on both the screen and the projection region.

  Further, the image projection unit projects an image for one frame onto the screen when the optical member is in one of the first posture and the second posture, and then When the optical member is in the other posture, it is preferable to project an image for one frame onto the projection region.

  The image projecting unit switches the optical member from one of the first posture and the second posture to the other each time one pixel constituting the frame is projected by the irradiation device, It is preferable to project an image on a screen and the projection area.

  The image projection unit preferably includes an image reversing mechanism that reverses an image projected on a projection area outside the screen or the housing.

  The image reversing mechanism includes a first reflecting member that reflects light output in the first direction in the second direction, and a cross-sectional shape parallel to the first direction and the second direction. A reversing optical member that has a convex shape in at least one of the second direction or the direction opposite to the second direction, refracts the light reflected by the reflecting member, and inverts an image in a predetermined direction; It is preferable to contain.

  The image reversing mechanism includes a second reflecting member that reflects the light reflected by the optical member toward the optical member, and the optical member is reflected by the second reflecting member and an image is displayed. It is preferable that the inverted light is reflected in the opposite direction to the light that has passed through the optical member as it is.

  The image reversing mechanism includes a third reflecting member that reflects the light that has passed through the optical member as it is toward the optical member, and the optical member is reflected by the third reflecting member to generate an image. It is preferable that the inverted light is reflected in the opposite direction to the light reflected by the optical member.

  In the image projection unit, a projection light exit window that emits light for projecting an image onto a projection area outside the housing is formed on a surface facing the surface of the housing on which the screen is provided. Preferably it is.

  In the image projection unit, a projection light exit window for emitting light for projecting an image onto a projection area outside the housing is formed on a surface adjacent to the surface of the housing on which the screen is provided. Preferably it is.

  The portable electronic device of the present invention has an effect that the image projection unit can be used more efficiently.

FIG. 1 is a front view illustrating a schematic configuration of the portable electronic device according to the first embodiment. FIG. 2 is a side view of the portable electronic device shown in FIG. FIG. 3 is a block diagram illustrating a schematic configuration of functions of the portable electronic device illustrated in FIGS. 1 and 2. FIG. 4 is an explanatory diagram showing a schematic configuration of the projector shown in FIG. FIG. 5 is an explanatory diagram illustrating a state in which an image is displayed by the projector of the portable electronic device illustrated in FIGS. 1 and 2. FIG. 6A is a schematic diagram illustrating a portable electronic device when an image is projected onto a screen. FIG. 6B is a schematic diagram of the portable electronic device when an image is projected onto a projection area outside the portable electronic device. FIG. 7 is an explanatory diagram in which screen display images and projection display images are arranged in time series. FIG. 8 is an explanatory diagram illustrating an example of the display order of the screen display image and the projection display image. FIG. 9 is an explanatory diagram illustrating an example of the display order of the screen display image and the projection display image. FIG. 10 is an explanatory diagram illustrating an example of the display order of the screen display image and the projection display image. FIG. 11A is an explanatory diagram illustrating an example of the order in which a plurality of pixels constituting a display image are displayed. FIG. 11B is an explanatory diagram of an example of the order in which a plurality of pixels constituting the display image are displayed. FIG. 11C is an explanatory diagram of an example of the order in which a plurality of pixels constituting the display image are displayed. 11-4 is explanatory drawing which shows the example of the order which displays the some pixel which comprises a display image. FIG. 12 is a schematic diagram illustrating a portable electronic device according to the second embodiment. FIG. 13 is a schematic diagram illustrating a portable electronic device according to the third embodiment. FIG. 14 is a schematic diagram illustrating a portable electronic device according to the fourth embodiment. FIG. 15 is a perspective view illustrating a schematic configuration of a portable electronic device according to the fifth embodiment. FIG. 16 is a schematic diagram illustrating a case where the portable electronic device of FIG. 15 projects an image. FIG. 17 is a schematic diagram illustrating a portable electronic device according to the sixth embodiment. FIG. 18 is a schematic diagram illustrating a portable electronic device according to the seventh embodiment. FIG. 19 is a schematic diagram illustrating a portable electronic device according to the eighth embodiment.

  Hereinafter, the present invention will be described in detail with reference to the drawings. The present invention is not limited to the following description. In addition, constituent elements in the following description include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those in a so-called equivalent range. In the following, a cellular phone is taken as an example of a portable electronic device, but the application target of the present invention is not limited to a cellular phone. For example, a PHS (Personal Handy-phone System), a PDA, a portable navigation device, a notebook The present invention can also be applied to personal computers, game machines, and the like.

  FIG. 1 is a front view showing a schematic configuration of the portable electronic device according to the first embodiment of the present invention, and FIG. 2 is a side view of the portable electronic device shown in FIG. A portable electronic device 10 shown in FIGS. 1 and 2 is a mobile phone having a wireless communication function, an output unit, and a voice acquisition unit. The portable electronic device 10 includes a housing 10C that includes a plurality of housings. Specifically, the housing 10C is configured to be openable and closable by a first housing 10CA and a second housing 10CB. That is, the portable electronic device 10 has a foldable housing. In addition, the housing | casing of the portable electronic device 10 is not limited to such a structure. For example, the housing of the mobile electronic device 10 may be a sliding housing that allows one housing and the other housing to slide from each other in a state in which both housings are overlapped, It may be a rotary type in which one casing is rotated around an axis along the overlapping direction, or both casings are connected via a biaxial hinge.

  1st housing 10CA and 2nd housing 10CB are connected by the hinge mechanism 18 which is a connection part. By connecting the first housing 10CA and the second housing 10CB with the hinge mechanism 18, the first housing 10CA and the second housing 10CB rotate together around the hinge mechanism 18 and move away from each other and approach each other. It is comprised so that it can rotate to a direction (direction shown by the arrow R of FIG. 2). When the first housing 10CA and the second housing 10CB rotate in a direction away from each other, the portable electronic device 10 opens, and when the first housing 10CA and the second housing 10CB rotate in a direction approaching each other, the portable electronic device 10 closes. Thus, it is in a folded state (a state indicated by a dotted line in FIG. 2).

  The first casing 10CA is provided with a transmissive screen (hereinafter also simply referred to as “screen”) 12 shown in FIG. 1 as a display unit. The first housing 10CA is provided with a projector 30 that is an image projection unit, and the projector 30 projects and displays a standby image on the screen 12 when the portable electronic device 10 is waiting for reception. Or a menu image used for assisting the operation of the portable electronic device 10 is projected and displayed. The first casing 10CA is provided with an exit window 42. Light output from the projector 30 is output from the exit window 42 to the outside of the first casing 10CA, and an image is projected onto the projection area. . In addition, the first housing 10CA is provided with a receiver 16 that is an output unit that outputs sound during a call of the mobile electronic device 10.

  The second chassis 10CB is provided with a plurality of operation keys 13A for inputting characters at the time of making a mail, for example, the telephone number of the other party, and selecting and determining menus projected and displayed on the screen 12 and the screen. A direction key and a determination key (direction and determination key) 13B for easily executing scrolling and the like are provided. The operation key 13 </ b> A, the direction key, and the determination key 13 </ b> B constitute the operation unit 13 of the mobile electronic device 10. In addition, the second casing 10CB is provided with a microphone 15 that is a voice acquisition unit that receives voice during a call of the portable electronic device 10. The operation unit 13 is provided on the operation surface 10PC of the second casing 10CB shown in FIG. The surface opposite to the operation surface 10PC is the back surface 10PB of the portable electronic device 10.

  An antenna is provided inside the second housing 10CB. The antenna is a transmission / reception antenna used for wireless communication, and is used for transmission / reception of radio waves (electromagnetic waves) related to calls, electronic mails, and the like between the portable electronic device 10 and a base station. The second casing 10CB is provided with a microphone 15. The microphone 15 is disposed on the operation surface 10PC side of the portable electronic device 10 shown in FIG.

  A projector 30 that is an image projection unit is provided on the opposite side of the first casing 10CA from the hinge mechanism 18. Note that the light emitting portion of the projector 30 is exposed to the outside of the first casing 10CA. With such a configuration, the projector 30 can project an image onto a projection target.

  FIG. 3 is a block diagram illustrating a schematic configuration of functions of the portable electronic device illustrated in FIGS. 1 and 2. As illustrated in FIG. 3, the portable electronic device 10 includes a processing unit 22, a storage unit 24, a transmission / reception unit 26, an operation unit 13, an audio processing unit 29, and a projector 30. The processing unit 22 has a function of comprehensively controlling the overall operation of the mobile electronic device 10. In other words, the processing unit 22 transmits and receives various processes of the mobile electronic device 10 so as to be executed in an appropriate procedure according to the operation of the operation unit 13 and the software stored in the storage unit 24 of the mobile electronic device 10. The operations of the unit 26, the audio processing unit 29, the projector 30, and the like are controlled.

  Various processes of the portable electronic device 10 include, for example, a voice call performed via a circuit switching network, creation and transmission / reception of an electronic mail, browsing of an Internet Web (World Wide Web) site, and the like. The operations of the transmission / reception unit 26, the audio processing unit 29, the projector 30 and the like include, for example, transmission / reception of signals by the transmission / reception unit 26, input / output of audio by the audio processing unit 29, projection display of an image by the projector 30, and the like.

  The processing unit 22 executes processing based on a program (for example, an operating system program, application program, etc.) stored in the storage unit 24. The processing unit 22 is configured by, for example, a microprocessor unit (MPU: Micro Processing Unit), and executes various processes of the portable electronic device 10 described above according to a procedure instructed by the software. That is, the processing unit 22 sequentially reads instruction codes from an operating system program, application program, or the like stored in the storage unit 24 and executes processing.

  The processing unit 22 has a function of executing a plurality of application programs. Examples of application programs executed by the processing unit 22 include an application program that controls driving of the projector 30, an application program that reads and decodes various image files (image information) from the storage unit 24, and is obtained by decoding. There are a plurality of application programs such as an application program for causing the projector 30 to project an image.

  In the present embodiment, the processing unit 22 includes a projector control unit 22a that controls the operation of the projector 30, and an image processing unit 22b that processes and generates an image to be displayed on the projector 30. The functions of the projector control unit 22a and the image processing unit 22b are realized by executing the tasks assigned by the control unit of the processing unit 22 by the hardware resources configured by the processing unit 22 and the storage unit 24. Here, a task is a processing unit that cannot be executed at the same time among the entire processing performed by the application software or the processing performed by the same application software.

  The storage unit 24 stores software and data used for processing in the processing unit 22, and operates the above-described task for operating the application program for controlling the driving of the projector 30 and the image processing program. Task is memorized. In addition to these tasks, for example, communication, downloaded voice data, software used by the processing unit 22 to control the storage unit 24, the telephone number or mail address of the communication partner, etc. are described in the storage unit 24. The address book to be managed, voice files such as dial tone and ring tone, temporary data used in the process of software, and the like are stored.

  Note that computer programs and temporary data used in the software processing process are temporarily stored in the work area assigned to the storage unit 24 by the processing unit 22. The storage unit 24 includes, for example, a nonvolatile storage device (nonvolatile semiconductor memory such as ROM: Read Only Memory, a hard disk device, etc.), and a readable / writable storage device (for example, SRAM: Static Random Access Memory, DRAM: Dynamic Random Access Memory).

  The transmission / reception unit 26 has an antenna 26a, establishes a radio signal line by a CDMA (Code Division Multiple Access) method or the like with the base station via a channel assigned by the base station, and makes a telephone call with the base station. Perform communication and information communication. The operation unit 13 includes, for example, an operation key 13A to which various functions such as a power key, a call key, a numeric key, a character key, a direction key, a determination key, and a call key are assigned, and a direction key and a determination key 13B. Is done. When these keys are input by a user operation, a signal corresponding to the operation content is generated. The generated signal is input to the processing unit 22 as a user instruction.

  The audio processing unit 29 executes processing of an audio signal input to the microphone 15 and an audio signal output from the receiver 16 and the speaker 17. That is, the sound processing unit 29 amplifies the sound input from the microphone 15 and performs AD conversion (Analog Digital conversion), and then performs signal processing such as encoding to convert the sound into digital sound data. Output to the processing unit 22. Further, the audio data sent from the processing unit 22 is subjected to processing such as decoding, DA conversion (Digital Analog conversion), and amplification to convert it into an analog audio signal, which is then output to the receiver 16 and the speaker 17. Here, the speaker 17 is disposed in the housing 10C of the portable electronic device 10, and outputs a ringtone, a mail transmission sound, and the like.

  Next, the projector 30 will be described with reference to FIGS. 3 and 4. FIG. 4 is an explanatory diagram showing a schematic configuration of the projector 30. The projector 30 is an image projection unit that outputs the image from the screen 12 and the emission window 42 to the outside of the housing 10C and projects an image on at least one of the projection areas. The projector 30 irradiates an image with light as an irradiation device 32, and an optical for switching whether the image output from the irradiation device 32 is projected onto the screen 12 or output from the exit window 42 to the outside of the housing 10 </ b> C and projected onto the projection region. And a mechanism 40.

  The irradiation device 32 includes a light source and an optical system that switches whether to project the light emitted from the light source based on image data. In the present embodiment, as shown in FIGS. 3 and 4, the irradiation device 32 includes a visible light irradiation device (visible light irradiation means) 31 that is a light source, a drawing device 35 that is an optical system, and a focus adjustment device 39. It is comprised including. The visible light irradiation device 31 emits visible laser light. The light in the visible light region is light of 360 nm to 400 nm on the short wavelength side and light of 760 nm to 830 nm on the long wavelength side. In this embodiment, the visible light irradiation device 31 includes R (Red), G (Green), B Irradiate light of three colors (Blue).

  The drawing device 35 combines the three colors of light emitted from the visible light irradiation device 31 and irradiates the image projection target. The drawing device 35 includes a switching element that switches whether to transmit light emitted from the light source, and a projection angle adjustment mirror 35a that performs raster scanning of the light that has passed through the switching element. Then, the drawing device 35 changes the angle of the laser light emitted from the visible light irradiation device 31 by the projection angle adjustment mirror 35a and causes the image projection target to scan the laser light, thereby projecting the image onto the image projection target. .

  As the projection angle adjustment mirror 35a, for example, a MEMS (Micro Electro Mechanical System) mirror is used. A MEMS mirror drives a mirror using a piezoelectric element, scans the visible light irradiated from the visible light irradiation apparatus 31, and produces | generates a visible image and an invisible image. In this case, by changing the angle of the light emitted from the light source by the mirror and scanning the light emitted from the light source over the entire surface of the image projection target, a visible image or an invisible image can be projected onto the image projection target. it can. Thus, the projector 30 is a scan-type projector. The configuration of the projector 30 is not limited to that using the laser described above as a light source. For example, the projector 30 may be a projector having a configuration in which a halogen light, an LED light source, or an LD light source is used as a light source, and an LCD (Liquid Crystal Display) or DMD (Digital Micro-mirror Device) is included in an optical system.

  The focus adjustment device 39 has a function (focus adjustment function) for forming a visible image projected from the drawing device 35 on an image projection target in accordance with a command from the projector control unit 22a. The focus adjustment device 39 includes a focus adjustment mechanism including, for example, a movable lens, and realizes the focus adjustment function by moving the lens. The focus adjustment device 39 may realize the focus adjustment function by performing predetermined image processing on the image data projected by the projector 30 by the image processing unit 22b. Further, the focus adjustment device 39 may realize the focus adjustment function by a focus adjustment function and image processing.

  Next, the optical mechanism 40 includes a display switching mirror (movable total reflection mirror) 44, a total reflection mirror 46, and a lens 47 that can be rotated clockwise and counterclockwise in FIG. Contains. The display switching mirror 44 rotates in the clockwise and counterclockwise directions in the figure around the fulcrum 45 based on a control signal from the projector control unit 22a, so that the light from the projection angle adjusting mirror 35a is reflected in the upper part in the figure. A first posture that reflects in the direction and a second posture that does not reflect (do not block) the light from the projection angle adjusting mirror 35a can be taken. Further, the total reflection mirror 46 is disposed on the light path reflected by the display switching mirror 44 when the display switching mirror 44 is in the first posture, and reflects the reflected light toward the screen 12. . When the display switching mirror 44 is in the second posture, the lens 47 is an optical element arranged at the position where the light output from the irradiation device 32 reaches, in the present embodiment, the emission window 42. The lens 47 enlarges or reduces the image output from the irradiation device 32. Whether the optical element for enlarging the image or the optical element for reducing the image is used as the lens 47 may be selected depending on the intended use. Further, as the lens 47, an optical system capable of changing the magnification may be used.

  The optical mechanism 40 is configured as described above. When the display switching mirror 44 is in the first posture, the light output from the irradiation device 32 is reflected by the display switching mirror 44 in the upward direction in the figure. The light reflected upward in the figure by the display switching mirror 44 is further reflected rightward in the figure by the total reflection mirror 46 and enters the screen 12. As a result, the light output from the irradiation device 32 reaches the screen 12 and an image is projected onto the screen 12. On the other hand, when the display switching mirror 44 is in the second posture, the optical mechanism 40 causes the light output from the irradiation device 32 to pass through the lens 47 and exit to the outside of the housing 10CA. Thereby, the light output from the irradiation device 32 reaches a wall surface, a screen, and the like outside the housing, and projects an image on the wall surface, the screen, and the like.

  FIG. 5 is an explanatory diagram showing a state in which an image is projected (displayed) by the projector 30 of the mobile electronic device 10. The portable electronic device 10 can project an image on the screen 12 as shown in FIG. 5 by projecting an image from the projector 30 with the display switching mirror 44 in the first posture. Further, the portable electronic device 10 sets the display switching mirror 44 in the second posture, and projects an image from the projector 30, so that an image projection target at a position facing the image projection plane of the projector 30 as shown in FIG. 5. An image can be projected onto a predetermined area (projection area) PA of a wall (for example, a wall surface or a screen). The operation of the projector 30 is controlled by the processing unit 22, and various images sent from the processing unit 22, such as still images and moving images, are projected and displayed on the projection area PA and the screen 12. The portable electronic device 10 is basically configured as described above.

  Next, the operation of the portable electronic device will be described with reference to FIGS. 6-1 and 6-2. FIG. 6A is a schematic diagram illustrating the portable electronic device when an image is projected onto the screen 12. FIG. 6B is a schematic diagram of the portable electronic device when an image is projected onto a wall, a screen, or the like outside the portable electronic device.

  As shown in FIG. 6A, when an image is projected on the screen 12, the movable total reflection mirror 44 assumes a first posture based on a control signal from the projector control unit 22a, and is left from the irradiation device 32 in the drawing. The light irradiated in the direction is reflected upward in the figure. The light reflected in the upward direction in the figure by the display switching mirror 44 is further reflected in the right direction in the figure by the total reflection mirror 46, enters the screen 12 attached to the housing 10 CA, and enters the screen 12 on the screen display image 101. Is projected.

  As shown in FIG. 6B, when an image is projected onto a wall surface or the like outside the portable electronic device 10, the movable total reflection mirror 44 assumes the second posture based on the control signal from the projector control unit 22a, and the irradiation is performed. The light emitted from the device 32 in the left direction in the drawing is transmitted through the lens 47 attached to the housing 10CA, and the projection display image 102 is projected onto the wall surface or the like.

  As shown in FIGS. 6A and 6B, when the display switching mirror 44 is used, the light loss can be reduced. Further, when only one of the screen display image 101 and the projection display image 102 is displayed, a member such as a shutter is not required.

  FIG. 7 is an explanatory diagram in which the screen display image 101 and the projection display image 102 are arranged in time series. In this embodiment, the screen display image 101 and the projection display are displayed by referring to different image data (separate frame memories) at the time of screen display (see FIG. 6-1) and at the time of projection display (FIG. 6-2). The image 102 can be a different image. Further, by referring to the same image data (same frame memory) during screen display (see FIG. 6-1) and during projection display (FIG. 6-2), the screen display image 101 and the projected display image 102 Can be the same image.

  8 to 10 are explanatory diagrams illustrating examples of the display order of the screen display image 101 and the projection display image 102. FIG. As shown in FIG. 8, the entire frame of the screen display image 101 may be displayed, and then the entire frame of the projection display image 102 may be displayed. In this case, the number of posture changes of the display switching mirror 44 can be reduced, and the load on the display switching mirror 44 can be reduced. In addition, since a time lag can be provided from when the screen display image 101 is projected to when the projection display image 102 is projected, when the user operates the operation unit 13 after confirming the contents of the screen display image 101, the projection display image 102 is displayed. , It is possible to determine whether or not the projection display image 102 can be projected.

  Further, as shown in FIG. 9, each row constituting the frame of the screen display image 101 and each row constituting the frame of the projection display image 102 may be alternately displayed in units of rows. In this case, the time lag between the display of the screen display image 101 and the display of the projection display image 102 can be reduced. Note that each column constituting the frame of the screen display image 101 and each column constituting the frame of the projection display image 102 may be alternately displayed in units of columns.

  Further, as shown in FIG. 10, each pixel constituting the frame of the screen display image 101 and each pixel constituting the frame of the projection display image 102 may be alternately displayed on a pixel basis. In this case, if the screen display image 101 and the projection display image 102 are the same, the number of times the projection angle adjustment mirror 35a (see FIG. 4) is driven can be reduced, and the load on the projection angle adjustment mirror 35a can be reduced. Can do.

  11A to 11D are explanatory diagrams illustrating an example of the order in which a plurality of pixels constituting each display image 101 and 102 are displayed when each of the display images 101 and 102 is displayed. As shown in FIG. 11A, a plurality of rows constituting each of the display images 101 and 102 may be displayed in one direction (in FIG. 11A, the direction from the left to the right in the figure). In this case, since it is the same as the raster scan of the television, it is easy to create a program for realizing the projector control unit 22a or the image processing unit 22b.

  Also, as shown in FIG. 11-2, a plurality of rows constituting each display image 101, 102 are bidirectional (in FIG. 11-2, a direction from left to right in the figure and a direction from right to left in the figure). ) May be displayed so as to reciprocate. In this case, waste of driving (movement) of the projection angle adjustment mirror 35a can be reduced, and the load on the projection angle adjustment mirror 35a can be reduced.

  Further, as shown in FIG. 11C, a plurality of pixels constituting each of the display images 101 and 102 may be spirally displayed from the central portion toward the outer peripheral portion. In this case, waste of driving (movement) of the projection angle adjustment mirror 35a can be reduced, and the load on the projection angle adjustment mirror 35a can be reduced. In addition, since the central portion of the display images 101 and 102 is displayed first, the user looks at the central portion of the display images 101 and 102 to determine the contents of the image and operates the operation unit 13 to display the display image. The display of 101 and 102 can be skipped.

  Further, as shown in FIG. 11-4, a plurality of pixels constituting each of the display images 101 and 102 may be displayed in a spiral shape from the outer periphery toward the center. In this case, waste of driving (movement) of the projection angle adjustment mirror 35a can be reduced, and the load on the projection angle adjustment mirror 35a can be reduced.

  According to the portable electronic device 10 according to the present embodiment, since it is not necessary to include a display device such as an LCD or an organic EL (Organic Electro Luminescence), the cost can be reduced. Also, display devices such as LCD and organic EL are easily broken when external force is applied, and thus have many problems such as reliability. On the other hand, according to the portable electronic device 10, since the projector 30 is built in the housing 10C, it is difficult for external force to be applied to the projector 30, and the handling and reliability are excellent. Moreover, since the screen display image and the projection display image can be displayed by one projector 30, the use efficiency of the projector 30 can be increased. Further, since an image can be displayed on the screen 12 of the mobile electronic device 10 and the same image as the image displayed on the screen 12 can be projected onto a wall surface or the like, not only the operator of the mobile electronic device 10 but also the surrounding people can operate it. The same image as the person can be seen. Further, by using MEMS as the projection angle adjusting mirror 35a, it is possible to project an image neatly even if the distance between the portable electronic device 10 and the wall surface or the like changes.

  FIG. 12 is a schematic diagram showing a portable electronic device according to the second embodiment of the present invention. Note that the overall configuration of the portable electronic device according to the present embodiment is the same as that of the portable electronic device according to the first embodiment described above (see FIGS. 1 to 3). The portable electronic device according to the present embodiment includes a fixed translucent mirror 48 instead of the display switching mirror (movable total reflection mirror) 44 of the portable electronic device according to the first embodiment described above. Yes.

  As shown in FIG. 12, part of the light emitted from the irradiation device 32 in the left direction in the figure is reflected by the translucent mirror 48 in the upward direction in the figure. The light reflected upward in the figure by the semitransparent mirror 48 is further reflected rightward in the figure by the total reflection mirror 46, enters the screen 12, and the screen display image 101 is projected on the screen 12. Further, the other part of the light emitted from the irradiation device 32 in the left direction in the drawing is transmitted through the semi-transparent mirror 48 and further transmitted through the lens 47, and the projection display image 102 is projected onto the wall surface or the like.

  When the translucent mirror 48 is used as in the portable electronic device according to the present embodiment, it is possible to project an image on both the screen 12 side and the wall surface side with a single light emission from the irradiation device 32. Further, the time loss between the display of the screen display image 101 and the display of the projection display image 102 can be reduced.

  FIG. 13 is a schematic view showing a portable electronic device according to the third embodiment of the present invention. Note that the overall configuration of the portable electronic device according to the present embodiment is the same as that of the portable electronic device according to the first embodiment described above (see FIGS. 1 to 3). In the portable electronic device according to the present embodiment, a convex shape is formed in the left-right direction in the drawing and perpendicular to the paper surface between the total reflection mirror 46 and the transmissive screen 12 of the portable electronic device according to the second embodiment described above. Columnar lenses 50 are provided in various directions. The lens 50 may be convex in at least one of the left direction in the figure or the right direction in the figure.

  As shown in FIG. 13, part of the light emitted from the irradiation device 32 in the left direction in the drawing is reflected upward in the drawing by the semitransparent mirror 48. The light reflected upward in the figure by the semi-transparent mirror 48 is further reflected rightward in the figure by the total reflection mirror 46, inverted and refracted in the vertical direction in the figure by the lens 50, and incident on the screen 12. A screen display image 101 is projected onto the screen. Further, the other part of the light emitted from the irradiation device 32 in the left direction in the drawing is transmitted through the semi-transparent mirror 48 and further transmitted through the lens 47, and the projection display image 102 is projected onto the wall surface or the like.

  In the portable electronic device according to the second embodiment described above, the screen display image 101 and the projection display image 102 are displayed inverted in the vertical direction in the figure. On the other hand, when the lens 50 is disposed between the total reflection mirror 46 and the transmissive screen 12 as in the portable electronic device according to the present embodiment, the screen display image 101 and the projected display image 102 are vertically moved in the figure. Inverted display can be prevented. The reason why the shape of the lens 50 is convex in the left-right direction in the figure and columnar in the direction perpendicular to the paper surface is that the screen display image 101 and the projected display image 102 are not inverted in the direction perpendicular to the paper surface. is there.

  Further, when the translucent mirror 48 is used as in the portable electronic device according to the present embodiment, it is possible to project an image on both the screen 12 side and the wall surface side with a single light emission from the irradiation device 32. Further, the time loss between the display of the screen display image 101 and the display of the projection display image 102 can be reduced.

  FIG. 14 is a schematic view showing a portable electronic device according to the fourth embodiment of the present invention. Note that the overall configuration of the portable electronic device according to the present embodiment is the same as that of the portable electronic device according to the first embodiment described above (see FIGS. 1 to 3). The portable electronic device according to the present embodiment includes a fixed translucent mirror 48 instead of the display switching mirror 44 of the portable electronic device according to the first embodiment described above. Further, a total reflection mirror 49 is disposed above the semitransparent mirror 48 in the drawing so that the reflection surface thereof is in the horizontal direction in the drawing.

  As shown in FIG. 14, a part of the light irradiated from the irradiation device 32 in the upward direction in the figure passes through the semitransparent mirror 48. The light transmitted through the semi-transparent mirror 48 and traveling in the upward direction in the figure is reflected downward in the figure by the total reflection mirror 49, further reflected in the right direction in the figure by the semi-transparent mirror 48, and incident on the screen 12. The screen display image 101 is projected on the screen 12. Further, the other part of the light emitted from the irradiation device 32 in the upward direction in the figure is reflected by the semi-transparent mirror 48 in the left direction in the figure, passes through the lens 47, and the projection display image 102 is projected onto the wall surface or the like. The

  In the portable electronic device according to the second embodiment described above, the screen display image 101 and the projection display image 102 are displayed inverted in the vertical direction in the figure. On the other hand, in the portable electronic device according to the present embodiment, it is possible to prevent the screen display image 101 and the projected display image 102 from being reversed and displayed in the vertical direction in the figure. Further, when the translucent mirror 48 is used as in the portable electronic device according to the present embodiment, it is possible to project an image on both the screen 12 side and the wall surface side with a single light emission from the irradiation device 32. Further, the time loss between the display of the screen display image 101 and the display of the projection display image 102 can be reduced.

  In the portable electronic device according to the present embodiment, the light of the screen display image 101 may be weak (the image becomes dark), but the light of the projection display image 102 projected onto the wall surface or the like is strong (the image is (Bright) There are many needs, so there is no problem.

  Next, a portable electronic device according to a fifth embodiment of the present invention will be described. FIG. 15 is a perspective view illustrating a schematic configuration of the portable electronic device according to the present embodiment. The mobile electronic device 60 is a mobile phone having a wireless communication function. The mobile electronic device 60 is a straight mobile phone in which each part is housed in a single box-shaped housing 61.

  The housing 61 is provided with a screen 12 shown in FIG. 15 as a display unit. On the screen 12, as a predetermined image, a standby image is displayed when the portable electronic device 60 is waiting for reception, or a menu image used to assist the operation of the portable electronic device 60 is displayed. The

  The casing 61 is provided with a plurality of operation keys 13A for inputting characters when creating a telephone number of a call partner or when creating a mail. In addition, the housing 61 is provided with a microphone 15 that receives sound when the mobile electronic device 60 is in a call and a receiver 16 that emits sound when the mobile electronic device 60 is in a call.

  In addition, a light emitting unit 34a of the projector 30 that projects an image is provided on the upper surface of the housing 61 (a surface whose one side is in contact with the shorter side on which the operation key 13A is provided).

  The internal functional configuration of the portable electronic device 60 is the same as that of the portable electronic device 10 (see FIG. 3) according to the first embodiment described above.

  FIG. 16 is a schematic diagram showing the portable electronic device when the screen 12 and the portable electronic device project an image on an external wall surface, screen, or the like. As shown in FIG. 16, the screen 12 is attached to the right side of the casing 61 in the drawing, and the wall surface is arranged on the upper side in the drawing. Here, if the light emission direction of the light emission source 31a in the irradiation device 32 can be rotated clockwise and counterclockwise in the drawing, and the light emission direction of the light emission source 31a is set to the right in the drawing, the screen 12 The screen display image 101 can be displayed, and the projection display image 102 can be displayed on the wall surface when the light emission direction of the light emission source 31a is set to the upward direction in the figure. In this case, the screen display image 101 and the projection display image 102 can be made different from each other by referring to different image data (separate frame memories) during screen display and during projection display. Further, by referring to the same image data (same frame memory) during screen display and during projection display, the screen display image 101 and the projection display image 102 can be made the same image.

  FIG. 17 is a schematic view showing a portable electronic device according to the sixth embodiment of the present invention. The configuration of the portable electronic device according to the present embodiment is the same as that of the portable electronic device according to the fifth embodiment described above (see FIGS. 15 to 16). As shown in FIG. 17, when the irradiation device 32 can be rotated clockwise and counterclockwise in the drawing, and the light emission direction of the irradiation device 32 is set to the right in the drawing, the screen display image 101 is displayed on the screen 12. The projection display image 102 can be displayed on the wall surface when the light emitting direction of the irradiation device 32 is set upward in the drawing. In this case, the screen display image 101 and the projection display image 102 can be made different from each other by referring to different image data (separate frame memories) during screen display and during projection display. Further, by referring to the same image data (same frame memory) during screen display and during projection display, the screen display image 101 and the projection display image 102 can be made the same image.

  FIG. 18 is a schematic diagram showing a portable electronic device according to the seventh embodiment of the present invention. The configuration of the portable electronic device according to the present embodiment is the same as that of the portable electronic device according to the fifth embodiment described above (see FIGS. 15 to 16). As shown in FIG. 18, when the light emitting direction of the irradiation device 32 is set to the upward direction in the drawing and the translucent mirror 48 is arranged on the optical path, the screen display image 101 is displayed on the screen 12 and projected on the wall surface. The image 102 can be displayed. In this case, it is not necessary to rotate the irradiation device 32.

  FIG. 19 is a schematic view showing a portable electronic device according to the eighth embodiment of the present invention. The configuration of the portable electronic device according to the present embodiment is the same as that of the portable electronic device according to the fifth embodiment described above (see FIGS. 15 to 16). As shown in FIG. 19, the light emitting direction of the irradiation device 32 may be an upward direction in the figure, and a display switching mirror 44 that can be rotated clockwise and counterclockwise in the figure around a fulcrum 45 may be provided. . The movable total reflection mirror 44 rotates clockwise and counterclockwise in the figure around the fulcrum 45 based on a control signal from the projector control unit 22a, so that the light from the irradiation device 32 is on the right side in the figure. A first posture that reflects in the direction and a second posture that does not reflect (do not block) the light from the irradiation device 32 can be taken. When the movable total reflection mirror 44 is in the first posture, the light reflected in the right direction in the figure by the movable total reflection mirror 44 enters the screen 12, and the screen display image 101 is displayed on the screen 12. . On the other hand, when the movable total reflection mirror 44 is in the second posture, the light from the irradiation device 32 is emitted to the outside of the casing 61, and the projection display image 102 is displayed on the wall surface, the screen, or the like.

  As described above, when the movable total reflection mirror 44 is used, the rate at which light is transmitted to the screen 12 or the wall surface can be increased and the image can be brightened compared to the case where the translucent mirror 48 is used (see FIG. 18). Can do. Further, when only one of the screen display image 101 and the projection display image 102 is displayed, a member such as a shutter is not required. Further, by referring to different image data (separate frame memories) for screen display and projection display, the screen display image 101 and the projection display image 102 can be made different images. Further, by referring to the same image data (same frame memory) during screen display and during projection display, the screen display image 101 and the projection display image 102 can be made the same image.

  In the above-described embodiment, a scanning image projection mechanism that draws one frame image by scanning light as the irradiation device and drawing one pixel at a time is used. However, the present invention is not limited to this. For example, an image projection mechanism that projects an image for one frame by projecting light onto a liquid crystal panel on which an image for one frame has been drawn can be used as the irradiation device.

  In the above embodiment, the image output to the projection area outside the housing is enlarged / reduced by the lens. However, the image projected on the screen may be enlarged / reduced by the lens as well. When the device is downsized, the distance from the irradiation device to the screen is shortened, so that a large image can be projected on the screen by enlarging the image with the lens.

  As described above, the portable electronic device according to the present invention is useful for a device including an apparatus capable of projecting an image such as a projector.

DESCRIPTION OF SYMBOLS 10, 60 Portable electronic device 10C, 61 Case 12 Transmission type screen 13 Operation part 13A Operation key 13B Direction key and determination key 22 Processing part 22a Projector control part 22b Image processing part 24 Storage part 29 Audio | voice processing part 30 Projector 31 Visible light Irradiation device 32 Irradiation device 35a Projection angle adjustment mirror 40 Optical mechanism 42 Output window 44 Display switching mirror 46 Total reflection mirror 47 Lens 48 Translucent mirror

Claims (12)

A housing,
A screen provided in the housing;
An image projection unit that is provided in the housing and projects an image onto a projection area outside the screen and the housing;
A portable electronic device comprising: The image projection unit includes an irradiation device that outputs light constituting an image;
A part of the light emitted from the irradiation device is reflected in a predetermined direction to project the image on the screen, and the other portion of the light emitted from the irradiation device is directly passed through to pass the image to the outside. The portable electronic device according to claim 1, further comprising: an optical member that projects onto a projection region. The image projection unit includes an irradiation device that outputs light constituting an image;
A first posture in which light emitted from the irradiation device is reflected in a predetermined direction and the image is projected onto the screen, and light emitted from the irradiation device is allowed to pass through the image as it is to an external projection area. The portable electronic device according to claim 1, further comprising: an optical member that switches the second posture to be projected. The image projection unit is a scanning image projection mechanism that projects the image of one frame by scanning the light with the irradiation device,
Each time the irradiation device projects a preset region of the frame, the optical member switches between the first posture and the second posture, and one frame is displayed on both the screen and the projection region. The portable electronic device according to claim 3, wherein the image is projected.   The image projection unit projects an image for one frame onto the screen when the optical member is in one of the first and second postures, and then the optical member The portable electronic device according to claim 4, wherein when the member is in the other posture, an image for one frame is projected onto the projection region.   The image projection unit switches the optical member from one of the first posture and the second posture to the other each time one pixel constituting the frame is projected by the irradiation device, The portable electronic device according to claim 4, wherein an image is projected onto the projection area.   7. The portable electronic device according to claim 2, wherein the image projection unit includes an image inversion mechanism that inverts an image projected on a projection area outside the screen or the casing. machine. The image reversing mechanism includes a first reflecting member that reflects light output in a first direction in a second direction;
Light reflected by the reflecting member, wherein the shape of the cross section parallel to the first direction and the second direction has a convex shape in at least one of the second direction or the direction opposite to the second direction. The mobile electronic device according to claim 7, further comprising: an inverting optical member that refracts the light and inverts an image in a predetermined direction. The image reversing mechanism has a second reflecting member that reflects the light reflected by the optical member toward the optical member,
8. The portable electronic device according to claim 7, wherein the optical member reflects the light reflected by the second reflecting member and inverted in image in a direction opposite to the light that has passed through the optical member as it is. . The image reversing mechanism has a third reflecting member that reflects the light that has passed through the optical member as it is toward the optical member,
8. The portable electronic device according to claim 7, wherein the optical member reflects the light reflected by the third reflecting member and inverted in image in a direction opposite to the light reflected by the optical member. 9. .   In the image projection unit, a projection light exit window that emits light for projecting an image onto a projection region outside the housing is formed on a surface facing the surface of the housing on which the screen is provided. The portable electronic device according to claim 1, wherein:   In the image projection unit, a projection light exit window for emitting light for projecting an image onto a projection region outside the housing is formed on a surface adjacent to the surface of the housing on which the screen is provided. The portable electronic device according to claim 1, wherein:

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