JP2007047758A - Projection device with display monitor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To properly use display modes of monitor display and projection display when performing the monitor display and the projection display simultaneously on a projection device with a display monitor. <P>SOLUTION: When a mode is switched to a projection mode, an electronic camera 10 with a projector automatically projects a reproduced image of image data recorded in a memory card 200, from a projector portion 120. The function is changed so that a release button 14 serves as an operation member to switch a projection source, and so that a switch 16 serves as an operation member for zoom control of a projection image, and such description for the function-changed operation member are displayed in a key menu on a liquid crystal display device 104. Furthermore, luminance of the liquid crystal display device 104 is reduced to transparently light an operation member 103. The electronic camera 10 with a projector emphasizes contrast, saturation, and contour so as to emphasize the projected image in the projection mode. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electronic apparatus including a projector that projects information and a display that displays information.

  An electronic device having a projection function in a small device such as a cellular phone is known (see Patent Document 1). The mobile phone with a projector described in Patent Document 1 projects information on the palm of the caller while calling, or projects information on a wall surface while calling.

JP 2000-236375 A

  The projector-equipped mobile phone is also provided with a liquid crystal display. Japanese Patent Application Laid-Open No. 2005-228561 does not disclose anything about proper use of information display (projection) by a projector and a liquid crystal display.

(1) A projection apparatus with a display monitor according to the present invention is a projector that projects and displays an optical image, a display monitor that displays a reproduced image, and an instruction that simultaneously performs display by the display monitor and projection display by the projector. And a display control means for controlling the projection means and the display monitor so that the display modes are different between the projection display and the display.
(2) In the projection apparatus with a display monitor according to (1), the display control means can also change the display mode by reducing the display luminance by the display monitor.
(3) In the projection device with a display monitor according to the first aspect, the display control means can also change the display mode by enhancing the projection display by the projection means.
(4) In the projection device with a display monitor according to claim 3, the display control means may increase the emphasis as the surroundings become brighter.
(5) In the projection apparatus with a display monitor according to the first aspect, the display control means can change the display mode by changing the display contents between the display monitor and the projection means.
(6) In the projection device with a display monitor according to claim 5, the display control means may display the thumbnail image on the display monitor and cause the projection means to project the main image.
(7) In the projection device with a display monitor according to claim 5, the display control means may display the menu on the display monitor and project the main image on the projection means.
(8) In the projection device with a display monitor according to claim 5, the display control means may display and project images in different ranges between the display monitor and the projection means.
(9) In the projection device with a display monitor according to claim 8, the display control means may cause the projection means to project an image including the face of the subject displayed on the display monitor.
(10) In the projection device with a display monitor according to claim 5, the display control means may include additional information other than the thumbnail image in the display content of the display monitor.
(11) In the projection device with a display monitor according to claim 5, the display control means may include information indicating the projection range in the projection contents of the projection means.
(12) In the projection apparatus with a display monitor according to any one of claims 6 to 11, the display control means may include a projection adjustment image in the projection contents of the projection means.
(13) In the projection device with a display monitor according to claim 5, the display control means may cause the projection means to project a projection adjustment image while displaying the menu on the display monitor.
(14) In the projection apparatus with a display monitor according to any one of claims 1 to 13, the display control unit may temporarily reduce the projection luminance when the projection content is changed by the projection unit.
(15) The projection apparatus with a display monitor according to any one of claims 1 to 14 may further include an illumination unit that illuminates the operation member when the projection unit performs projection display.

  According to the present invention, when the monitor display and the projection display are performed simultaneously, the display modes of both can be appropriately used.

The best mode for carrying out the present invention will be described below with reference to the drawings.
(First embodiment)
FIG. 1 is a perspective view of an electronic camera with a projector according to a first embodiment of the present invention as viewed from the front. In FIG. 1, a photographing lens 11, an illumination light window 12, and a projector projection window 13 are provided on the front surface of the electronic camera 10 with a projector. A release button 14, a zoom switch 16, a mode switching dial 15, and a main switch 22 are provided on the upper surface of the electronic camera 10 with a projector.

  FIG. 2 is a perspective view of the electronic camera with a projector shown in FIG. In FIG. 2, a liquid crystal display 17, an electronic viewfinder 18, an operation member 19, and a speaker hole 20 are provided on the back surface of the electronic camera with a projector 10.

  The projector-equipped electronic camera 10 is equipped with a projector device (projector unit) to be described later. For example, the image is directed toward a screen or the like disposed on the front side of the projector-equipped electronic camera 10 placed on a desk. Such information is projected from the projector projection window 13. The projector-equipped electronic camera 10 has a built-in speaker 21 on the back side of the speaker hole 20 and reproduces information such as sound toward the back of the electronic camera 10.

  The mode switching dial 15 is a mode switching operation member for switching the operation mode of the electronic camera with a projector 10 such as a photographing mode and a projection mode. The shooting mode is an operation mode in which a subject image is shot and the shot image data is saved as a shot image file in a recording medium including a memory card. In the case of still image shooting, a still image file is generated, and in the case of moving image shooting, a moving image file is generated. In the photographing operation mode, the electronic camera with a projector 10 is mainly used for hand hold. The shooting start instruction corresponds to an operation signal output in response to the pressing operation of the release button 14. The projector-equipped electronic camera 10 is equipped with an illuminating device to be described later, and light emitted from a light emitter such as a xenon tube is emitted from the illumination light window 12 toward the front of the projector-equipped electronic camera 10. In the shooting mode, audio data collected by a microphone built in together with the speaker 21 on the back side of the speaker hole 20 can be stored in a recording medium.

  In the projection mode, photographed image data is read from a recording medium (for example, a memory card 200 described later or an internal memory (not shown)), and a reproduced image based on the image data is projected from the projector projection window 13 by the projector unit. It is an operation mode. The sound reproduction from the speaker 21 described above operates in the projection mode. In the projection mode, it is also possible to project a reproduced image based on image data read from other than the recording medium or image data supplied from the outside of the projector-equipped electronic camera 10.

  The electronic camera with projector 10 is provided with a retracting mechanism for retracting the lens barrel P into the camera casing so that the light projected from the projector projection window 13 is not scattered by the lens barrel P of the photographing lens 11. It has been.

  FIG. 3 is a block diagram illustrating the configuration of the electronic camera with projector 10 described above. 3, the projector-equipped electronic camera 10 includes a projector unit 120, an imaging unit 220, a CPU 101, a memory 102, an operation member 103, a liquid crystal display 104, a speaker 105, a microphone 106, and an external interface (I / F) 107 and a lighting device 108. A memory card 200 and a wireless communication unit 210 are mounted in a card slot (not shown). Both cards (units) are detachable.

  Based on the control program, the CPU 101 performs a predetermined calculation using signals input from each unit constituting the projector-equipped electronic camera 10 and sends control signals to each unit of the projector-equipped electronic camera 10. The photographing operation and the projection operation are controlled. The control program is stored in a nonvolatile memory (not shown) in the CPU 101.

  The memory 102 is used as a working memory for the CPU 101. The operation member 103 corresponds to the main switch 22, the release button 14, the zoom switch 16, the mode switching dial 15 in FIG. 1, and the operation member 19 in FIG. 2, and is turned on in conjunction with the pressing operation of the release button 14. Includes half-press switch and full-press switch. The half-push switch is turned on when the amount of depression of the release button 14 reaches the half-push operation amount, and the full-push switch is turned on when the amount of depression of the release button 14 reaches a full-push operation amount greater than the half-push operation amount. To do. The operation member 103 sends an operation signal corresponding to the operation content to the CPU 101.

  The transmissive illumination device 1031 has a light emitting diode (LED) or the like as a light emitter, and lighting / extinguishing is controlled in accordance with a command from the CPU 101. Among the operation members 103, at least a part or the whole of the key tops of the operation members operated in the projection mode (in this embodiment, the mode switching dial 15, the release button 14, the zoom switch 16, and the cross switch 19A) are translucent. It is comprised by the member. Accordingly, when the transmissive illumination device 1031 is turned on, the operation member is transmissively illuminated.

  The memory card 200 is configured by a non-volatile memory such as a flash memory, and can write, save, and read data such as image data photographed by the imaging unit 220 according to a command from the CPU 101. The wireless communication unit 210 receives and demodulates data transmitted from an external device (not shown), and sends the demodulated image data and audio data to the CPU 101.

  The illumination device 108 emits light from the light emitter in response to a light emission instruction from the CPU 101, and emits illumination light that illuminates the subject from the illumination light window 12 toward the front of the electronic camera with projector 10.

  The liquid crystal display 104 (17 in FIG. 2) displays information such as images and texts according to instructions from the CPU 101. The text information is an operation state of the electronic camera 10 with a projector, an operation menu, and the like. The speaker 105 (21 in FIG. 2) reproduces sound based on the sound data output from the CPU 101.

  The microphone 106 converts the collected sound into an electrical signal and sends it to the CPU 101. The audio signal data is recorded on the memory card 200 in the shooting mode.

  An external interface (I / F) 107 displays a video signal as image data in order to display a playback image based on a video signal transmitted from an external device such as a video camera on the liquid crystal display 104 or project it on the projector unit 120. And the converted image data is sent to the CPU 101. Also, the external interface (I / F) 107 converts the sound based on the sound signal transmitted from the external device into sound data to be played back by the speaker 105, and sends the converted sound data to the CPU 101.

(Imaging part)
The imaging unit 220 includes a photographing lens 221 (11 in FIG. 1), an image sensor 222, a lens driving circuit 223, a photographing control circuit 224, and a lens barrel retracting mechanism 225. As the image sensor 222, a CCD, a CMOS image sensor, or the like is used. The imaging control circuit 224 controls driving of the image sensor 222 and the lens driving circuit 223 according to a command from the CPU 101, and performs predetermined image processing on an imaging signal (accumulated charge signal) output from the image sensor 222. Image processing includes white balance processing and gamma processing.

  The photographing lens 221 forms a subject image on the imaging surface of the image sensor 222. The imaging control circuit 224 causes the image sensor 222 to start imaging in response to an imaging start instruction, reads the accumulated charge signal from the image sensor 222 after the imaging is completed, sends the image processing to the CPU 101 as image data.

  The lens driving circuit 223 drives a focus lens (not shown) constituting the photographing lens 221 forward and backward in the optical axis direction based on the focus adjustment signal output from the photographing control circuit 224. The lens driving circuit 223 drives a zoom lens (not shown) constituting the photographing lens 221 to advance and retreat in the optical axis direction (tele side or wide side) based on the zoom adjustment signal output from the photographing control circuit 224. . The focus adjustment amount and the zoom adjustment amount are instructed from the CPU 101 to the photographing control circuit 224.

(Camera focus adjustment)
The imaging unit 220 adjusts the focus of the photographing lens 221 by shifting the focus lens constituting the photographing lens 221 in the optical axis direction. When performing autofocus adjustment, the CPU 101 integrates high frequency components (so-called focus evaluation value) for an image signal corresponding to a focus detection area (for example, the center of the shooting screen) among image signals captured by the image sensor 222. A focus adjustment signal is sent to the imaging control circuit 224 so as to maximize. The position of the focus lens that maximizes the focus evaluation value is a focus position that eliminates blurring of the edge of the subject image captured by the image sensor 222 and maximizes the contrast of the image.

(Camera zoom adjustment)
The imaging unit 220 adjusts the optical zoom of the photographing lens 221 by shifting the zoom lens constituting the photographing lens 121 in the optical axis direction. The CPU 101 sends a zoom adjustment signal to the imaging control circuit 224 in response to an operation signal from the zoom switch 16. The CPU 101 sends a zoom adjustment signal so as to zoom up when an operation signal is input clockwise from the zoom switch 16, and adjusts the zoom so as to zoom down when an operation signal is input counterclockwise from the zoom switch 16. Send a signal. The zoom switch 16 is configured to alternatively output two different operation signals.

  Further, the photographing control circuit 224 sends a command to the lens barrel retracting mechanism 225 in response to a command from the CPU 101, and the lens barrel P (FIG. 1) of the photographing lens 221 is retracted into the housing of the projector-equipped electronic camera 10. The lens barrel P retracted in the housing is extended to the state at the time of photographing (FIG. 1).

(Projector part)
The projector unit 120 includes a projection lens 121, a liquid crystal panel 122, an LED light source 123, a projection control circuit 124, and a lens driving circuit 125. The projection control circuit 124 supplies a drive current to the LED light source 123 according to a projection command output from the CPU 101. The LED light source 123 illuminates the liquid crystal panel 122 with brightness according to the supplied current.

  The projection control circuit 124 further generates a liquid crystal panel drive signal in accordance with the image data sent from the CPU 101, and drives the liquid crystal panel 122 with the generated drive signal. Specifically, a voltage corresponding to the image signal is applied to the liquid crystal layer for each pixel. In the liquid crystal layer to which a voltage is applied, the arrangement of liquid crystal molecules changes, and the light transmittance of the liquid crystal layer changes. Thus, the liquid crystal panel 122 generates an optical image by modulating the light from the LED light source 123 according to the image signal.

  The projection lens 121 projects the light image emitted from the liquid crystal panel 122 onto a screen or the like. The lens driving circuit 125 drives the projection lens 121 forward and backward in a direction orthogonal to the optical axis based on the offset adjustment signal output from the projection control circuit 124. The lens driving circuit 125 drives a focus lens (not shown) constituting the projection lens 121 forward and backward in the optical axis direction based on the focus adjustment signal output from the projection control circuit 124. The lens drive circuit 125 further drives a zoom lens (not shown) constituting the projection lens 121 forward and backward in the optical axis direction based on the zoom adjustment signal output from the projection control circuit 124. The offset adjustment amount, focus adjustment amount, and zoom adjustment amount are instructed from the CPU 101 to the projection control circuit 124.

(Projected image offset)
By shifting the projection lens 121 in a direction orthogonal to the optical axis, the emission direction of the light beam emitted from the projector unit 120 changes, and the projection image is offset. In addition to shifting the projection lens 121, the projection image may be offset by shifting the liquid crystal panel 122 and the LED light source 123 in the direction perpendicular to the optical axis. That is, the offset of the projected image can be realized by changing the relative positional relationship between the projection lens 121 and the liquid crystal panel 122 in a direction perpendicular to the optical axis.

(Keystone correction of projected image)
When a part of the projection lens 121, the liquid crystal panel 122, and the LED light source 123 is shifted in the direction perpendicular to the optical axis, keystone correction is performed on the data to be projected according to the shift amount. Since the projection image changes to a trapezoidal shape only by giving the offset to the projection image, the CPU 101 performs electrical keystone correction by image processing to correct the projection image from a trapezoidal shape to a rectangular shape. The memory in the CPU 101 stores an initial correction value for correcting the projected image into a square shape in advance. The CPU 101 reads an initial correction value corresponding to the offset adjustment amount, performs keystone correction processing on the image data to be projected based on the read initial correction value on the memory 102, and outputs the image data after the keystone correction processing to the projection control circuit. To 124.

(Focus adjustment of projected image)
The projector unit 120 adjusts the focus of the projected image by shifting the focus lens constituting the projection lens 121 in the optical axis direction. When performing manual focus adjustment, the CPU 101 sends a focus adjustment signal to the projection control circuit 124 in accordance with an operation signal from the operation member 103.

(Zoom adjustment of projected image)
By shifting the zoom lens constituting the projection lens 121 in the optical axis direction, the projector unit 120 performs zoom adjustment of the projected image. The CPU 101 sends a zoom adjustment signal to the projection control circuit 124 in accordance with the operation signal from the operation member 103.

(Projection source: source)
The projector unit 120 receives the following source 1. ~ Source 4. Project and play back content based on either Each time the CPU 101 receives a source switching operation signal from the operation member 103, the source 101. ~ Source 4. Projected image of source 1. → 2. → 3. → 4. → 1. Image data corresponding to each image is sent to the projector unit 120 so as to be cyclically switched in the order of. However, if the memory card 200 is not attached to the projector-equipped electronic camera 10, the source 1. Is skipped and the source 2 is not installed. Is skipped. When no external device is connected to the external interface (I / F) 107, the source 4. Is skipped.

Source 1. 1. Reproduced image source based on data read from the memory card 200 2. Reproduced image source based on data received by the wireless communication unit 210 3. Reproduced image source based on image data recorded in an internal memory (such as a non-volatile memory in the CPU 101) Reproduced image by data input from external interface (I / F) 107

  The CPU 101 uses the source 1. Or source 3. When the image corresponding to is projected, the image data with the newest recording date and time (the last recorded image data taken) is read sequentially from the memory card 200 (or internal memory), and the read image data Is sent to the projector unit 120.

  Since the present invention has a feature in the operation when the electronic camera with projector 10 is switched to the projection mode, the description will focus on the control performed by the CPU 101 when the projection mode is activated.

  FIG. 4 is a flowchart for explaining the flow of processing by a program executed by the CPU 101 of the electronic camera with projector 10 in the projection mode. The process shown in FIG. 4 is activated when an operation signal instructing switching to the projection mode is input from the mode switching dial 15 to the CPU 101. The operation signal for switching to the projection mode corresponds to an instruction for simultaneously performing reproduction display by the liquid crystal display 104 (liquid crystal monitor) and projection display by the projector unit 120.

  In step S1 of FIG. 4, the CPU 101 instructs the imaging control circuit 224 to turn off the imaging unit and instructs the liquid crystal display 104 (liquid crystal monitor) to lower the display luminance, and then proceeds to step S2. Thereby, the imaging operation in the imaging unit 220 is stopped, and the display screen of the liquid crystal display 104 becomes dark. The display brightness is lowered by, for example, lowering the lighting brightness of a backlight (not shown) of the liquid crystal monitor.

  In step S2, the CPU 101 determines whether or not the lens barrel P is in the retracted state. When the CPU 101 receives a signal indicating the retracted state from the imaging control circuit 224, the CPU 101 makes a positive determination in step S2 and proceeds to step S4. When receiving a signal indicating the non-collapsed state, the CPU 101 makes a negative determination in step S2 and proceeds to step S3. move on.

  In step S3, the CPU 101 sends a collapsible command (instruction) to the photographing control circuit 224 and proceeds to step S4. In step S <b> 4, the CPU 101 instructs the projection control circuit 124 to start projection, and changes the functions of the release button 14 and the zoom switch 16 provided on the upper surface of the projector-equipped electronic camera 10 among the operation members 103. The process proceeds to step S5. In response to the projection start instruction, the LED light source 123 is turned on in the projector unit 120.

  After step S4, the release button 14 and the zoom switch 16 are each handled as an operation member having a function different from that in the shooting mode until the function change is canceled in step S14 described later. The release button 14 is handled as an operation member for switching the projection source, not an operation member for instructing photographing. In the case of the zoom switch 16, it is handled as an operation member for zoom adjustment of the projection lens 121 (projected image), not zoom adjustment of the photographing lens 221.

  In step S5, the CPU 101 instructs the liquid crystal display 104 (liquid crystal monitor) to display a key menu, and instructs the transmissive illumination device 1031 to turn on (turn on) the transmissive illumination, and proceeds to step S6. The key menu display is a display for explaining the operation member whose function has been changed. For example, the figure representing the zoom switch 16 and the text “zoom adjustment of the projection lens” are displayed in association with each other, and the figure representing the release button 14 is displayed. The text “switch projection source” is displayed in association with it.

  In step S6, the CPU 101 reads out the image data with the newest recording date and time (the main image of the image signal) from the memory card 200 (or the internal memory) (in the default setting, reads from the memory card 200), and the recording date and time is A predetermined number (for example, four files) of thumbnail image data (thumbnail images among the image signals) are read in order from the new file, and the process proceeds to step S7. Both the main image and the thumbnail image are read from the file from which the main image data is read.

  In step S7, the CPU 101 sends thumbnail image display data to the liquid crystal display 104 (liquid crystal monitor) to instruct thumbnail display, and sends the projection display data of the main image to the projector unit 120 to reproduce the reproduced image. Is instructed to proceed to step S8. As a result, thumbnail images of four frames are displayed on the liquid crystal display 104, and a reproduction image based on the main image data is projected from the projector unit 120. Note that the CPU 101 sends projection display data in which contrast, saturation, and contour are emphasized to the projector unit 120 so that the projection image by the projector unit 120 is flashy.

  The CPU 101 further displays a cursor on a thumbnail image corresponding to the projected display image projected from the projector unit 120 among the thumbnail images being displayed on the liquid crystal display 104 (liquid crystal monitor). When audio data is stored in association with the data file of the image being projected, the CPU 101 reproduces the audio based on the audio data from the speaker 105.

  In step S8, the CPU 101 determines whether or not an operation by the user has been performed. When an operation signal is input from the operation member 103 (FIG. 3), the CPU 101 makes an affirmative determination in step S8 and proceeds to step S9. If no operation signal is input from the operation member 103, the CPU 101 makes a negative determination in step S8. Repeat the determination process.

  In step S9, the CPU 101 determines whether or not the user operation is a mode switching operation. If the input operation signal is an operation signal for switching to the shooting mode from the mode switching dial 15, the CPU 101 makes an affirmative decision in step S9 and proceeds to step S14. On the other hand, if the input operation signal is a half-press operation signal (in this case, a source switching signal) linked to the pressing operation of the release button 14, the CPU 101 makes a negative determination in step S9 and proceeds to step S10. Furthermore, the CPU 101 is displaying thumbnails on the liquid crystal display 104 (liquid crystal monitor), and the input operation signal is an operation signal (in this case, a thumbnail selection signal) from the cross switch 19A (FIG. 2). In step S9, a negative determination is made and the process proceeds to step S13. When proceeding to step S10, it is considered that a source switching instruction has been issued, and when proceeding to step S13, it is regarded that a thumbnail has been selected.

  In step S10, the CPU 101 outputs the projection image data to be sent to the projector unit 120 to the source 1. → 2. → 3. → 4. → 1. One is switched in the order of, and the process proceeds to step S11.

  In step S11, the CPU 101 determines that the image data to be sent to the projector unit 120 is the source 1. Or source 3. It is determined whether the image corresponds to (i.e., a recorded image). If the image data to be sent to the projector unit 120 is a recorded image, the CPU 101 makes an affirmative decision in step S11 and returns to step S6 to read the image data from the memory card 200 (or internal memory). On the other hand, the CPU 101 determines that the image data to be sent to the projector unit 120 is the source 2. Or source 4. Is negative (ie, a non-recorded image), a negative determination is made in step S11 and the process proceeds to step S12.

  In step S13 that proceeds when a thumbnail is selected, the CPU 101 instructs the liquid crystal display 104 (liquid crystal monitor) to move the cursor onto the thumbnail image indicated by the thumbnail selection signal, and returns to step S6. For example, when an operation signal indicating the right direction is input from the cross switch 19A, the cursor is moved to the thumbnail image being displayed on the right side of the thumbnail image displayed on the cursor on the liquid crystal display 104 (liquid crystal monitor).

  The CPU 101 which has returned to step S6 via step S13 reads the main image data corresponding to the thumbnail image after the cursor movement from the memory card 200 (or the internal memory) (in the default setting, reads from the memory card 200). Then, a predetermined number (eg, four files) of thumbnail image data is read from the file in the order of recording date and time, and the process proceeds to step S7.

  In step S12, which proceeds after making a negative determination in step S11, the CPU 101 instructs the liquid crystal display 104 (liquid crystal monitor) to display a key menu and returns to step S8. As described above, when thumbnail image data is not included in the projection source, key menu display is performed instead of thumbnail display. The key menu display is the same as in step S5.

  In step S14 that proceeds when mode switching is instructed, the CPU 101 instructs the projection control circuit 124 to end projection, cancels the function change of the release button 14 and the zoom switch 16, and proceeds to step S15. As a result, the LED light source 123 is turned off in the projector unit 120.

  In step S15, the CPU 101 sends a command to the liquid crystal display 104 (liquid crystal monitor), stops (ends) the key menu display (if the thumbnail image is displayed), and lowers it in step S2. The display brightness of the liquid crystal display 104 is restored. Further, the CPU 101 instructs the transmissive illumination device 1031 to turn off (turn off) the transmissive illumination, and ends the processing of FIG.

  Note that the zoom adjustment of the projection lens 121 is always possible from step S4 to step S14 described above. When the operation signal from the zoom switch 16 is input, the CPU 101 performs the following interrupt process. When an operation signal is turned clockwise from the zoom switch 16, the CPU 101 sends a zoom adjustment signal to the projection control circuit 124 so as to zoom up the projected image. When the operation signal is turned counterclockwise from the zoom switch 16, A zoom adjustment signal is sent to the projection control circuit 124 so as to zoom down the projected image.

(effector)
The projection control circuit 124 temporarily reduces the lighting brightness of the LED light source 123 when the still image projected by the projector unit 120 is switched to another image. For example, the light emission amount is gradually decreased over 1 second from the normal light emission amount state by the LED light source 123, and the light emission amount is gradually increased over 1 second from the state where the light emission amount is reduced to restore the lighting brightness. Perform effect processing as follows. The projection control circuit 124 further causes the liquid crystal panel 122 to generate a light image corresponding to the image data newly sent from the CPU 101 while the lighting brightness of the LED light source 123 is reduced by an effect.

  The effect processing is performed when the projection source is switched and when the projection source is the source 1. Or source 3. In the case of a recorded image like this, it is performed at the time of projection image switching by frame advance or frame return. The switching of the projection image includes switching at the time of slide show projection in which the CPU 101 automatically instructs switching of the projection image and switching of the projection image performed by the CPU 101 in response to an operation signal from the operation member 103. When a predetermined number of frames are advanced (or returned) at a time, it is preferable to change from an optical image currently formed on the liquid crystal panel 122 to an optical image after feeding a predetermined frame during one effect process. (The optical image during frame advance is not formed on the liquid crystal panel 122).

According to the first embodiment described above, the following operational effects can be obtained.
(1) When the projector-equipped electronic camera 10 is switched to the projection mode, the reproduced image based on the main image data recorded in the memory card 200 is automatically projected from the projector unit 120 (steps S4 to S7). Therefore, it is not necessary to turn on the projection lamp or select the projection image after switching to the projection mode. As a result, the usability in the projection mode of the electronic camera with projector 10 is improved.

(2) When the projector-equipped electronic camera 10 is switched to the projection mode, the function is changed so that the release button 14 is handled as an operation member for switching the projection source, and the zoom switch 16 is used as an operation member for adjusting the zoom of the projection image. The function was changed to handle it (step S4). Thereby, it is not necessary to add a new operation member related to projection.

(3) Since the description of the operation member whose function has been changed in (2) above is displayed on the liquid crystal display 104 as a key menu, it is easy for the user to use.

(4) When the projector-equipped electronic camera 10 is switched to the projection mode, the brightness of the liquid crystal display 104 is lowered (step S1), so that the appropriate display brightness is achieved in a dark room during projection and power consumption is reduced. Can be reduced. Further, when returning to the shooting mode, the reduced display luminance is automatically restored (step S15), which is easy for the user to use.

(5) A part or all of the key tops of the mode switching dial 15, the release button 14, the zoom switch 16, and the cross switch 19 </ b> A that are operated in the projection mode are made of a translucent member, and transmissive illumination is performed in the projection mode (step) Since S5) is performed, the operation member can be easily visually recognized in the dark room at the time of projection, and the user can be notified of the operation member necessary in the projection mode.

(6) Since the electronic camera with projector 10 emphasizes contrast, saturation, and contour so that the image projected in the projection mode is flashy, even when the contrast of the projected image is reduced on a white screen A high-quality projected image can be obtained. For example, the degree of enhancement processing may be changed according to brightness (luminance information) indicated by an output signal from a photometric sensor or image sensor 222 (not shown). In this case, the brighter the brightness information, the stronger the enhancement, and the darker the brightness information, the weaker the enhancement processing.

(7) The electronic camera with a projector 10 displays four thumbnail images on the liquid crystal display 104 when the projection source includes thumbnail image data, and the cursor is displayed among the displayed thumbnail images. A reproduced image based on the main image data corresponding to the thumbnail image is projected from the projector unit 120 (steps S6, S7, S9, and S13). As a result, the user can select an image to project while viewing a plurality of thumbnail images.

(8) The electronic camera with a projector 10 receives the source 1. ~ Source 4. The projected image corresponding to is cyclically switched (step S10). As a result, regardless of the data format or signal format of the image input to the electronic camera with projector 10, the reproduced image can be projected onto the projector unit 120, and the projection content can be selected with a simple operation. it can.

(9) When the still image projected by the projector unit 120 is switched to another image, the electronic camera with a projector 10 temporarily reduces the projection luminance (lighting luminance by the LED light source 123) to add an effect. Therefore, the stimulus given to the observer's vision can be reduced.

(Modification 1)
In the above description, the number of thumbnail images to be displayed on the liquid crystal display 104 (liquid crystal monitor) is four, but the number is not limited to four, and may be two or nine.

(Modification 2)
In step S <b> 1 described above, the display brightness is lowered by lowering the lighting brightness of the backlight (not shown) of the liquid crystal display 104 in accordance with the switching to the projection mode. Instead, the liquid crystal display 104 is used. The display brightness may be lowered by turning off only the backlight without changing the display.

(Modification 3)
In the above description, a plurality of thumbnail images are displayed on the liquid crystal display 104 (liquid crystal monitor), and a reproduction image corresponding to the thumbnail image displayed as a cursor among the plurality of thumbnail images is projected from the projector unit 120. Instead, one thumbnail image may be displayed on the liquid crystal display 104 (liquid crystal monitor), and a reproduction image obtained by enlarging (or reducing) the thumbnail image may be projected from the projector unit 120. Thereby, it is possible to display (project) images in different ranges between the liquid crystal display 104 (liquid crystal monitor) and the projector unit 120.

(Modification 4)
The zoom switch 16 may be configured as a seesaw type switch that alternatively outputs two different operation signals, instead of the rotary operation type switch described above. Further, it may be constituted by two switches in which the “zoom-up” switch and the “zoom-down” switch are made independent.

(Modification 5)
The electronic camera with a projector 10 in which the projector and the electronic camera are integrated in advance has been described as an example. However, an electronic camera system may be configured by the projector and the electronic camera configured to be detachable from the electronic camera. The electronic camera system in this case is switched to the projection mode when a projector is attached to an accessory shoe (not shown) of the electronic camera, and starts a program similar to that shown in FIG. Note that the CPU 101 on the electronic camera side and the projection control circuit on the projector side transmit and receive data via a signal terminal (not shown) provided along with the accessory shoe. An operation signal from the operation member of the electronic camera is transmitted to the projector side via the signal terminal.

(Modification 6)
Although the electronic camera with a projector 10 has been described as an example, the present invention can also be applied to an electronic apparatus including a projector 120 and a liquid crystal display 104, for example, an electronic apparatus such as a mobile phone with a projector and a projection device.

(Second embodiment)
An example in which the content displayed on the liquid crystal display (liquid crystal monitor) is different from the content projected by the projector unit 120 will be described in more detail. FIG. 5 is a diagram illustrating a case where the liquid crystal display 17 (reference numeral 104 in FIG. 3) of the electronic camera with projector 10 displays one thumbnail image, and the projector unit 120 projects an original image corresponding to the thumbnail image. It is.

  In FIG. 5, a thumbnail image based on thumbnail display data among the data in the image file is displayed on the liquid crystal display 17. The liquid crystal display 17 further displays the name 52 of the image file including the frame number superimposed on the thumbnail image, and a battery mark 51 indicating the remaining battery level detected by a power supply circuit (not shown). Overlaid on the screen. The display control of the liquid crystal display 17 is performed by the CPU 101 of the electronic camera with projector 10.

  On the other hand, the projector unit 120 projects an image based on the main image (original image) data among the data in the image file, and projects a frame 60 indicating the projection range around the original image. The projector unit 120 does not project the name of the image file and does not normally project the battery mark. Projection control of the projector unit 120 is performed by the CPU 101 and the projection control circuit 124.

  FIG. 6 shows the contents displayed on the liquid crystal display 17 (liquid crystal monitor) and the contents projected from the projector unit 120 when it is detected by a power supply circuit (not shown) that the remaining battery level is equal to or less than a predetermined amount. FIG. When the remaining battery level is equal to or less than the predetermined amount, the projector unit 120 projects the battery mark 61 on the original image in the same manner as the battery mark 51 displayed on the liquid crystal display 17 (liquid crystal monitor).

According to the second embodiment described above, the following operational effects can be obtained.
(1) Since the projector unit 120 projects an image based on the main image (original image) data among the data in the image file, if the liquid crystal panel 122 having a larger number of pixels than the number of pixels constituting the thumbnail image data is used, A higher-definition projection image than the thumbnail image displayed on the liquid crystal display 17 (liquid crystal monitor) is obtained.

(2) On the liquid crystal display 17 (liquid crystal monitor), in addition to the thumbnail image, additional information such as the image file name 52 and the battery mark 51 is displayed, while the projection content by the projector unit 120 is added other than the original image. Since the information is not included, the name of the image file, the battery mark, etc. do not get in the way for the observer who observes the projected image.

(3) When it is detected that the remaining battery level is equal to or less than the predetermined amount, the battery mark 61 is included in the projection content by the projector unit 120, so that the user can use the liquid crystal display 17 (liquid crystal monitor). Even when only the projection image by the projector unit 120 is observed instead of the display content of the above, it is possible to inform the user that the remaining battery level is low.

(4) Since the frame 60 indicating the projection range by the projector unit 120 is projected, the projection range is easy to understand for an observer who observes the projection image, and is also effective for keystone correction.

(Modification 7)
When the display off of the liquid crystal display 17 (liquid crystal monitor) is instructed, the projector unit 120 may project additional information such as an image file name and a battery mark in addition to the projection of the original image. .

(Third embodiment)
A calibration pattern for adjusting projection may be included in the content projected by the projector unit 120. When adjusting the focus of the projection image, the position of the focus lens (projection lens 121) is adjusted so as to eliminate the blurring of the edge included in the projection content and maximize the contrast of the projection image. In this case, it is difficult to adjust the focus when the projection image does not include contrast information or when the projection image is a moving image and the contrast information fluctuates. In the third embodiment, the projector unit 120 projects a part of the original image including the contrast calculation pattern 62 so that the focus can be adjusted regardless of the original image to be projected.

  FIG. 7 is a diagram illustrating contents displayed on the liquid crystal display 17 (liquid crystal monitor) and contents projected from the projector unit 120 in the third embodiment. The projector unit 120 projects a part of the original image by replacing it with the contrast calculation pattern 62. This makes it easy to adjust the focus state of the projected image even when the original image is composed of intermediate gradation components and does not include contrast information or when the original image changes.

  The contrast calculation pattern 62 has, for example, a predetermined shape pattern in which a plurality of vertical lines are connected so that the contrast amount can be easily calculated. The contrast calculation pattern 62 may be always included in the projection content, or may be temporarily included only when adjusting the focus of the projection image.

  In FIG. 7, the projector unit 120 also includes a brightness detection pattern 63 below the contrast calculation pattern 62. If the projector unit 120 does not project at an appropriate brightness, the projected image is too dark or too bright, making it difficult for the observer to see. When adjusting the brightness of the projected image, the brightness of the projected image is adjusted by changing the lighting brightness of the LED light source 123 so that the high-luminance portion included in the projection content has an appropriate brightness. In this case, it is difficult to adjust the brightness when the projection image does not include a high-luminance portion or when the projection image is a moving image and the position and luminance of the high-luminance portion vary. Therefore, the projector unit 120 projects the brightness detection pattern 63 in a part of the original image so that the brightness can be adjusted regardless of the original image to be projected.

  The brightness detection pattern 63 has, for example, a white predetermined shape pattern so that the brightness of the projection image can be easily detected. The brightness detection pattern 63 may be always included in the projection content, or may be temporarily included only when adjusting the brightness of the projection image.

According to the third embodiment described above, the following operational effects can be obtained.
(1) The contrast calculation pattern 62 and the brightness detection pattern 63 used for projection adjustment are included in the projection content of the projector unit 120, and the contrast calculation pattern and brightness detection are included in the display content of the liquid crystal display 17 (liquid crystal monitor). Since the pattern for use is not included, each pattern does not get in the way for the user who observes the liquid crystal display 17 (liquid crystal monitor).

(2) Since the contrast calculation pattern 62 is configured by a predetermined shape pattern in which a plurality of vertical lines are connected, it is also effective when checking the presence or absence of the tilt of the projected image.

(Modification 8)
In FIG. 7, the calibration patterns 62 and 63 are included inside the frame 60, respectively, but the calibration patterns 62 and 63 may be projected outside the frame 60 as shown in FIG. . Even when the calibration patterns 62 and 63 are always included in the projection contents by projecting the calibration patterns 62 and 63 to the outside of the frame 60, the calibration patterns 62 and 63 are an obstacle to the observer who observes the projection image. do not become.

(Modification 9)
The contrast calculation pattern 62 and the brightness detection pattern 63 exemplified as the projection adjustment image may have any shape as long as contrast calculation and brightness detection can be performed.

(Fourth embodiment)
FIG. 9 shows an image including the face area of the subject extracted from the original image corresponding to the thumbnail image displayed on the liquid crystal display 17 (reference numeral 104 in FIG. 3) of the electronic camera with projector 10. 2 is a diagram illustrating a case where close-up projection is performed from the projector unit 120. FIG.

  In this case, the CPU 101 performs face extraction on the image based on the main image (original image) data among the data in the image file. For the face extraction, for example, a technique disclosed in Japanese Patent Laid-Open No. 9-251534 is used. The projector unit 120 enlarges and projects the face area data extracted by the CPU 101 by enlarging the face area data larger than the projection size during normal projection. According to FIG. 9, among images including a person being displayed on the liquid crystal display 17 (liquid crystal monitor), a face image 64 corresponding to the face of the person is projected by the projector unit 120 and a frame indicating the projection range. 60 is projected around the face image 64. The point that the name of the image file is not projected and the battery mark is not normally projected is the same as in the second embodiment.

  According to the fourth embodiment described above, the projector-equipped electronic camera 10 performs face extraction on the main image (original image) in the data in the image file, and the face image 64 including the extracted face is displayed on the projector unit 120. Projected from close-up. Thereby, the observer of a projection image can observe the projection image which projected the person's face with high definition and large. On the other hand, the user who observes the display content of the liquid crystal display 17 (liquid crystal monitor) can also confirm the whole image by the thumbnail image. Note that face extraction may be performed for animal faces in addition to human faces.

(Fifth embodiment)
FIG. 10 is a diagram illustrating a case where the liquid crystal display 17 (reference numeral 104 in FIG. 3) of the electronic camera with projector 10 displays a key menu and the projector unit 120 projects calibration patterns 62 and 63.

  According to FIG. 10, the key menu in the projection mode is displayed on the liquid crystal display 17 (liquid crystal monitor). The graphic representing the zoom switch 16 and the text “zoom adjustment of the projection lens” are displayed in association with each other, and the graphic representing the release button 14 and the text “switching projection source” are displayed in association with each other. This corresponds to the contents described in step S12.

  On the other hand, the projector unit 120 projects the contrast calculation pattern 62 and the brightness detection pattern 63 as a calibration pattern on the approximate center of the projection range, and projects a frame 60 indicating the projection range around the calibration pattern.

  According to the fifth embodiment described above, the projector unit 120 projects the calibration pattern for projection adjustment almost at the center, so that the focus adjustment of the projection image and the projection image can be adjusted as compared with the case of projecting to the end of the projection range. Easy to adjust the brightness of the projected image. On the other hand, the operation member whose function has been changed can be explained to the user who observes the display content of the liquid crystal display 17 (liquid crystal monitor) by the key menu displayed on the liquid crystal display 17 (liquid crystal monitor).

(Modification 10)
The color adjustment coefficient of the image displayed on the liquid crystal display 17 (liquid crystal monitor) may be different from the color adjustment coefficient of the image projected from the projector unit 120. When the screen or wall projected by the projector unit 120 is not white, the color of the projected image may be different from the color desired by the user. In this case, the projector unit 120 changes the color adjustment coefficient of the projected image by the projector unit 120 in accordance with the hue adjustment instruction.

  The above description is merely an example, and is not limited to the configuration of the above embodiment. The first embodiment to the fifth embodiment and the modifications 1 to 10 may be configured by appropriately combining them.

It is the perspective view which looked at the electronic camera with a projector by a first embodiment of the present invention from the front. It is the perspective view which looked at the electronic camera with a projector of FIG. 1 from back. It is a block diagram explaining the structure of the electronic camera with a projector. It is a flowchart explaining the flow of the process by the program which CPU performs at the time of projection mode. It is a figure which illustrates the content displayed on a liquid crystal display in 3rd embodiment, and the content projected from a projector part. It is a figure which illustrates the content displayed on a liquid crystal display, when a battery remaining charge becomes below predetermined amount. It is a figure which illustrates the content displayed on a liquid crystal display in 3rd embodiment, and the content projected from a projector part. It is a figure which illustrates the content displayed on a liquid crystal display in a modification, and the content projected from a projector part. It is a figure which illustrates the content displayed on a liquid crystal display in 4th embodiment, and the content projected from a projector part. It is a figure which illustrates the content displayed on a liquid crystal display in 5th embodiment, and the content projected from a projector part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Electronic camera 11 with a projector (221) ... Shooting lens 13 ... Projector projection window 14 ... Release button 15 ... Mode switch dial 16 ... Zoom switch 17 (104) ... Liquid crystal display 19 (103) ... Operation members 51, 61 ... Battery mark 52 ... Image file name 60 ... Frames 62, 63 ... Calibration pattern 64 ... Face image 101 ... CPU
120 ... Projector unit 200 ... Memory card 210 ... Wireless communication unit 220 ... Imaging unit

Claims (15)

Projection means for projecting and displaying an optical image;
A display monitor for displaying a reproduced image;
Display control means for controlling each of the projection means and the display monitor so that display modes differ between the projection display and the display in response to an instruction to simultaneously perform display by the display monitor and projection display by the projection means. A projection apparatus with a display monitor. In the projection apparatus with a display monitor according to claim 1,
The projection apparatus with a display monitor, wherein the display control means changes the display mode by reducing display brightness by the display monitor. In the projection apparatus with a display monitor according to claim 1,
The projection apparatus with a display monitor, wherein the display control means changes the display mode by emphasizing the projection display by the projection means. In the projection apparatus with a display monitor according to claim 3,
The projection apparatus with a display monitor, wherein the display control means changes the display mode by increasing the emphasis as the surroundings become brighter. In the projection apparatus with a display monitor according to claim 1,
The projection apparatus with a display monitor, wherein the display control means changes the display mode by changing display contents between the display monitor and the projection means. In the projection apparatus with a display monitor according to claim 5,
The projection device with a display monitor, wherein the display control means causes the display monitor to display a thumbnail image and causes the projection means to project the main image. In the projection apparatus with a display monitor according to claim 5,
The projection device with a display monitor, wherein the display control means displays a menu on the display monitor and causes the projection means to project a main image. In the projection apparatus with a display monitor according to claim 5,
The projection apparatus with a display monitor, wherein the display control means displays and projects images in different ranges between the display monitor and the projection means. The projection apparatus with a display monitor according to claim 8,
The projection apparatus with a display monitor, wherein the display control means causes the projection means to project an image including the face of the subject displayed on the display monitor. In the projection apparatus with a display monitor according to claim 5,
The projection apparatus with a display monitor, wherein the display control means includes additional information other than the thumbnail image in the display content of the display monitor. In the projection apparatus with a display monitor according to claim 5,
The projection apparatus with a display monitor, wherein the display control means includes information indicating a projection range in the projection contents of the projection means. In the projection apparatus with a display monitor as described in any one of Claims 6-11,
The projection apparatus with a display monitor, wherein the display control means includes a projection adjustment image in the projection contents of the projection means. In the projection apparatus with a display monitor according to claim 5,
The display control means displays a menu on the display monitor and causes the projection means to project an image for projection adjustment. In the projection apparatus with a display monitor as described in any one of Claims 1-13,
The projection apparatus with a display monitor, wherein the display control means temporarily lowers the projection luminance when the projection content is changed by the projection means. In the projection apparatus with a display monitor as described in any one of Claims 1-14,
A projection apparatus with a display monitor, further comprising illumination means for illuminating the operation member when the projection means performs projection display.

Images