Patent Publication Number: US-2021185184-A1

Title: Printer-equipped digital camera and displaying control method thereof

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a Continuation of PCT International Application No. PCT/JP2019/035618 filed on Sep. 11, 2019, which claims priority under 35 U.S.C § 119(a) to Japanese Patent Application No. 2018-171717 filed on Sep. 13, 2018. Each of the above application(s) is hereby expressly incorporated by reference, in its entirety, into the present application. 
    
    
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a printer-equipped digital camera and a displaying control method thereof and particularly, to a printer-equipped digital camera that prints an image using an instant film, and a displaying control method thereof. 
     2. Description of the Related Art 
     A printer-equipped digital camera that incorporates a printer in a camera body and can instantly print a captured image on a medium has been known. 
     JP2001-045342A discloses that a printer-equipped digital camera that prints an image using an instant film incorporates an exposure display in a camera body and exposes a surface of the instant film using the exposure display. 
     SUMMARY OF THE INVENTION 
     In a case where the surface of the instant film is exposed using the exposure display as in the printer-equipped digital camera disclosed in JP2001-045342A, light from each pixel of the display is diffused, thereby posing a defect of blurriness of the printed image. 
     An image checking display is usually comprised in the camera body of the digital camera. In a case where the exposure display is comprised in addition to the image checking display, a defect arises in that a power load is increased. 
     The present invention is conceived in view of such a matter, and an object thereof is to provide a printer-equipped digital camera and a displaying control method thereof capable of printing a high quality image and reducing a power load. 
     (1) A printer-equipped digital camera comprises an instant film pack loading unit in which an instant film pack including an exposure opening is loaded, a first displaying unit of which a displaying surface is arranged to face an exposure surface of an instant film in the instant film pack through the exposure opening with respect to the instant film pack loaded in the instant film pack loading unit, and that exposes the instant film by displaying an image, a light exit direction restriction member that is included on the displaying surface of the first displaying unit and restricts a light exit direction of light from each pixel of the first displaying unit to a constant range, an imaging unit that electronically captures a subject image, a second displaying unit that displays an image to an outside, and a displaying control unit that controls displaying of the first displaying unit and the second displaying unit, in which the displaying control unit switches OFF displaying of the second displaying unit while the instant film is exposed by displaying the image on the first displaying unit. 
     According to the present aspect, the instant film is exposed through the light exit direction restriction member. Accordingly, blurriness of an image to be recorded can be prevented, and a high quality image can be printed. In addition, displaying of the second displaying unit is switched OFF during exposure. Accordingly, a peak value of power can be reduced, and a power load can be reduced. 
     (2) In the printer-equipped digital camera of (1), each of the first displaying unit and the second displaying unit is configured with a liquid crystal display including a backlight, and the displaying control unit controls ON and OFF of displaying of the first displaying unit and the second displaying unit by controlling ON and OFF of the backlight of the liquid crystal display constituting each of the first displaying unit and the second displaying unit. 
     According to the present aspect, each of the first displaying unit and the second displaying unit is configured with the liquid crystal display including the backlight, and controlling ON and OFF of displaying is performed by switching the backlight ON and OFF. Accordingly, a control can be simplified. 
     (3) In the printer-equipped digital camera of (2), the displaying control unit displays the same image on the first displaying unit and the second displaying unit. 
     According to the present aspect, the same image is displayed on the first displaying unit and the second displaying unit. Accordingly, a displaying control can be simplified. 
     (4) In the printer-equipped digital camera of (2) or (3), the first displaying unit and the second displaying unit are connected to the same image output interface. 
     According to the present aspect, the first displaying unit and the second displaying unit are connected to the same image output interface. Accordingly, a configuration and a control can be simplified. 
     (5) In the printer-equipped digital camera of any one of (2) to (4), the displaying control unit switches ON the backlight of the liquid crystal display constituting the first displaying unit in a case of exposing the instant film, and switches ON the backlight of the liquid crystal display constituting the second displaying unit in a case of displaying the image on the second displaying unit. 
     According to the present aspect, the backlight of the liquid crystal display constituting the first displaying unit is switched ON in a case of exposing the instant film. The backlight of the liquid crystal display constituting the second displaying unit is switched ON in a case of displaying the image on the second displaying unit. 
     (6) In the printer-equipped digital camera of any one of (2) to (5), the backlight of the liquid crystal display constituting each of the first displaying unit and the second displaying unit includes a white light source and a light guide plate. 
     According to the present aspect, the backlight of the liquid crystal display constituting each of the first displaying unit and the second displaying unit is configured with the white light source and the light guide plate. 
     (7) In the printer-equipped digital camera of any one of (1) to (6), the first displaying unit and the second displaying unit are arranged to be stacked with a light blocking member interposed between the first displaying unit and the second displaying unit. 
     According to the present aspect, the first displaying unit and the second displaying unit are arranged to be stacked with the light blocking member interposed between the first displaying unit and the second displaying unit. Accordingly, size reduction of a device is achieved. 
     (8) In the printer-equipped digital camera of any one of (1) to (6), the first displaying unit and the second displaying unit are arranged with the instant film pack interposed between the first displaying unit and the second displaying unit. 
     According to the present aspect, the first displaying unit and the second displaying unit are arranged with the instant film pack interposed between the first displaying unit and the second displaying unit. Accordingly, each of the first displaying unit and the second displaying unit may not need a light blocking structure. 
     (9) The printer-equipped digital camera of any one of (1) to (8) further comprises an image processing unit that processes the image to be displayed on the first displaying unit. 
     According to the present aspect, image processing is performed on the image to be displayed on the first displaying unit, that is, an image to be printed on the instant film. 
     (10) In the printer-equipped digital camera of (9), the image processing unit performs inversion processing. 
     According to the present aspect, the inversion processing is performed as the image processing. 
     (11) In the printer-equipped digital camera of (9) or (10), the image processing unit performs edge highlighting processing. 
     According to the present aspect, the edge highlighting processing is performed as the image processing. 
     (12) In the printer-equipped digital camera of any one of (1) to (11), the light exit direction restriction member is configured with a louver plate that is included on the displaying surface of the first displaying unit. 
     According to the present aspect, the light exit direction restriction member is configured with the louver plate. 
     (13) The printer-equipped digital camera of any one of (1) to (12) further comprises a brightness adjustment unit that adjusts brightness of the second displaying unit, in which the second displaying unit displays the image at brightness set by the brightness adjustment unit, and the first displaying unit displays the image at constant brightness. 
     According to the present aspect, the brightness of the second displaying unit can be adjusted. 
     (14) The printer-equipped digital camera of any one of (1) to (13) further comprises an imaging control unit that controls ON and OFF of the imaging unit, in which the imaging control unit switches OFF the imaging unit during displaying of the image on the first displaying unit. 
     According to the present aspect, the imaging unit is switched OFF during exposure. Accordingly, the peak value of power can be more effectively reduced, and the power load can be reduced. 
     (15) The printer-equipped digital camera of any one of (1) to (14) further comprises a touch operation detection unit that detects a touch operation performed on a displaying surface of the second displaying unit. 
     According to the present aspect, the touch operation detection unit is comprised on the displaying surface of the second displaying unit. 
     (16) In the printer-equipped digital camera of (1), each of the first displaying unit and the second displaying unit is configured with an organic EL display, and the displaying control unit controls ON and OFF of displaying of the first displaying unit and the second displaying unit by controlling ON and OFF of the organic EL display constituting the first displaying unit and the second displaying unit. 
     According to the present aspect, each of the first displaying unit and the second displaying unit is configured with the organic electro-luminescence display (organic EL display; OELD). 
     (17) A displaying control method of a printer-equipped digital camera is a displaying control method of a printer-equipped digital camera including a first displaying unit that includes, on a displaying surface, a light exit direction restriction member restricting a light exit direction of light from each pixel to a constant range and exposes a surface of an instant film by displaying an image, and a second displaying unit that displays an image to an outside, the displaying control method comprising switching OFF displaying of the second displaying unit while the instant film is exposed by displaying the image on the first displaying unit. 
     According to the present aspect, in the printer-equipped digital camera exposing the instant film through the light exit direction restriction member, displaying of the second displaying unit for displaying the image to the outside is switched OFF during exposure. Accordingly, the peak value of power can be reduced, and the power load can be reduced. 
     According to the present invention, a printer-equipped digital camera capable of printing a high quality image and reducing a power load can be provided. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective front view illustrating an exterior configuration of one embodiment of a printer-equipped digital camera. 
         FIG. 2  is a perspective rear view of the printer-equipped digital camera illustrated in  FIG. 1 . 
         FIG. 3  is a cross-sectional view illustrating a schematic configuration of an inside of the printer-equipped digital camera. 
         FIG. 4  is a perspective view of an instant film pack. 
         FIG. 5  is a front view of an instant film. 
         FIG. 6  is a rear view of the instant film. 
         FIG. 7  is a diagram illustrating a schematic configuration of an exposure display and an image displaying display. 
         FIG. 8  is an enlarged cross-sectional view of a part of a louver plate. 
         FIG. 9  is an enlarged front view of a part of the louver plate. 
         FIG. 10  is a block diagram illustrating an electric configuration of the printer-equipped digital camera. 
         FIG. 11  is a conceptual diagram of generation of a print image. 
         FIG. 12  is a block diagram of functions of a displaying controller. 
         FIG. 13  is a diagram illustrating one example of displaying of an image displaying display in an imaging mode. 
         FIG. 14  is a diagram illustrating one example of displaying of the image displaying display in a playback mode. 
         FIG. 15  is a diagram illustrating a transition state of screen displaying of the image displaying display in a case of printing in the playback mode. 
         FIG. 16  is a timing chart of a displaying control of the image displaying display and the exposure display. 
         FIG. 17  is a conceptual diagram of a case where the image displaying display and the exposure display are connected to the same image output interface. 
         FIG. 18  is a conceptual diagram of a case where controlling ON and OFF of displaying of the image displaying display and the exposure display is performed by switching a backlight to be turned on using a switch. 
         FIG. 19  is a diagram illustrating a schematic configuration of the printer-equipped digital camera in a case where the image displaying display and the exposure display are arranged with the instant film pack interposed therebetween. 
         FIG. 20  is a diagram illustrating one example of the louver plate configured with two layers of light exit direction restriction layers. 
     
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Hereinafter, a preferred embodiment of the present invention will be described in detail in accordance with the appended drawings. 
     Exterior Configuration 
       FIG. 1  is a perspective front view illustrating an exterior configuration of one embodiment of a printer-equipped digital camera.  FIG. 2  is a perspective rear view of the printer-equipped digital camera illustrated in  FIG. 1 . In  FIG. 1  and  FIG. 2 , a direction indicated by arrow x is a left-right direction of a printer-equipped digital camera  1 . A direction indicated by arrow y is an up-down direction of the printer-equipped digital camera  1 . A direction indicated by arrow z is a forward-rearward direction of the printer-equipped digital camera  1 . The left-right direction has the same meaning as a lateral direction or a width direction. The up-down direction has the same meaning as a height direction or a longitudinal direction. The forward-rearward direction has the same meaning as a depth direction. 
     The printer-equipped digital camera  1  of the present embodiment is a printer-equipped digital camera that prints an image using an instant film. The instant film is loaded in the printer-equipped digital camera  1  in a form of an instant film pack. 
     As illustrated in  FIG. 1  and  FIG. 2 , the printer-equipped digital camera  1  includes a portable camera body  10 . The camera body  10  has a small thickness in the forward-rearward direction and has a longitudinal rectangular parallelepiped shape of which a dimension in the longitudinal direction is longer than a dimension in the lateral direction. 
     An imaging lens  12 , a film lid cover  14 , and the like are comprised on a front surface side of the camera body  10 . The film lid cover  14  is a cover that opens and closes a film loading chamber. The film lid cover  14  is disposed to be openable and closable through a hinge  14   a  (refer to  FIG. 3 ) comprised on a bottom surface of the camera body  10 . 
     An image displaying display  16  is comprised on a rear surface side of the camera body  10 . The image displaying display  16  is a display that displays the image to an outside, and is one example of a second displaying unit. The image displaying display  16  is used as not only a live view monitor in a case of imaging but also a playback monitor or the like in a case of viewing a captured image. Live view is a function of displaying an image captured by the image sensor in real time. The image displaying display  16  is configured with a touch panel display. Accordingly, the image displaying display  16  also functions as an operation unit. 
     A power button  18  is comprised on a side surface on a single side of the camera body  10 . The printer-equipped digital camera  1  is powered ON and OFF by pushing the power button  18  for a long time. 
     A film discharge port  20  is comprised on an upper surface of the camera body  10 . The film discharge port  20  is configured with a slit through which an instant film  110  can pass. The printed instant film  110  is discharged from the film discharge port  20 . 
     Internal Structure 
       FIG. 3  is a cross-sectional view illustrating a schematic configuration of an inside of the printer-equipped digital camera. 
     The printer-equipped digital camera  1  comprises the imaging lens  12 , the image sensor  42 , and the like as a constituent related to a digital camera. The film loading chamber  50 , a film forwarding mechanism  52 , a film transport mechanism  54 , an exposure display  56 , and the like are comprised as a constituent related to a printer. The image displaying display  16  is comprised as a constituent common to both. 
     Imaging Lens 
     The imaging lens  12  forms an optical image of a subject on a light receiving surface of the image sensor  42 . The imaging lens  12  has a focal point adjusting function and is configured to include a stop and a shutter, not illustrated. 
     Image Sensor 
     For example, the image sensor  42  is configured with a two-dimensional solid-state imaging element such as a charge coupled device (CCD) image sensor or a complementary metal oxide semiconductor (CMOS) image sensor. The image sensor  42  has an imaging region that has an aspect ratio corresponding to a printable region of the instant film to be used. 
     In the printer-equipped digital camera  1  of the present embodiment, the imaging lens  12  and the image sensor  42  constitute the imaging unit that electronically captures the subject image. 
     Film Loading Chamber 
     The film loading chamber  50  is the loading unit (instant film pack loading unit) for the instant film pack  100 . The film loading chamber  50  is configured with a recess portion and is open and closed by the film lid cover  14 . The recess portion has a shape in which the instant film pack  100  fits, and is airtightly closed in a darkroom state by closing the film lid cover  14 . 
     Instant Film Pack 
     The instant film pack  100  has a structure in which a plurality of the instant films  110  are accommodated in a case  120 . 
       FIG. 4  is a perspective view of the instant film pack.  FIG. 5  is a front view of the instant film.  FIG. 6  is a rear view of the instant film. In  FIG. 4  to  FIG. 6 , a direction indicated by arrow F is a forwarding direction of the instant film  110 . The instant film  110  is forwarded in the direction indicated by arrow F and is discharged from the case  120 . 
     The instant film  110  is a so-called “mono-sheet type” (referred to as a sheet film type, an integral film, or the like) instant film and is an instant film of a type in which an image appears on a back of the exposure surface. The instant film  110  has a rectangular card shape. A surface of the instant film  110  on one side is configured as an exposure surface  110   a,  and a surface of the instant film  110  on the other side is configured as an observation surface  110   b.  The exposure surface  110   a  is a surface on which an image is recorded by exposure, and the observation surface  110   b  is a surface on which the recorded image is observed. 
     As illustrated in  FIG. 6 , an exposure region  112 , a pod portion  114 , and a trap portion  116  are comprised on the exposure surface  110   a  of the instant film  110 . 
     The exposure region  112  is a region in which the image is recorded by exposure. The exposure region  112  is the printable region of the instant film  110 . The pod portion  114  and the trap portion  116  are arranged ahead and behind each other in the forwarding direction F with the exposure region  112  interposed therebetween. 
     The pod portion  114  is arranged ahead of the exposure region  112  in the forwarding direction F. The pod portion  114  incorporates a developing treatment liquid pod  114   a  that contains developing treatment liquid. 
     The trap portion  116  is arranged behind the exposure region  112  in the forwarding direction F. The trap portion  116  incorporates an absorbent material  116   a.    
     As illustrated in  FIG. 5 , an observation region  118  is comprised on the observation surface  110   b  of the instant film  110 . The observation region  118  is a region in which the image is displayed. By performing developing treatment on the exposure region  112 , the image is displayed in the observation region  118 . The observation region  118  is arranged in correspondence with the exposure region  112 . A frame  118   a  is comprised around the observation region  118 . 
     Accordingly, the image is displayed within the frame. 
     The instant film  110  is viewed in a direction in which the trap portion  116  is up and the pod portion  114  is down. Accordingly, the image is printed in a direction in which trap portion  116  is up and the pod portion  114  is down. 
     After the exposure, the instant film  110  is subjected to the developing treatment by spreading the developing treatment liquid of the pod portion  114  in the exposure region  112 . The developing treatment liquid of the pod portion  114  is squeezed from the pod portion  114  and spread in the exposure region  112  by causing the instant film  110  to pass between a spreading roller pair  54 A. The developing treatment liquid that is left at a time of spreading processing is trapped in the trap portion  116 . 
     The case  120  has a rectangular box shape. The case  120  includes a rectangular exposure opening  120   a  in a front surface part. In addition, the case  120  includes a slit-shaped discharge port  120   b  in a ceiling surface part. The instant film  110  is stacked and accommodated in the case with the exposure surface  110   a  facing a front surface side (exposure opening  120   a  side) of the case  120  and the pod portion  114  facing a ceiling surface side (discharge port  120   b  side) of the case  120 . In addition, the case  120  includes a slit-shaped claw opening portion  120   c  in a bottom surface part. The instant film  110  accommodated in the case  120  is forwarded one sheet at a time toward the discharge port  120   b  and discharged from the discharge port  120   b  by causing a claw  52   a  to advance from the claw opening portion  120   c.    
     One instant film pack  100  accommodates a plurality (for example, 10) of the instant films  110 . 
     Film Forwarding Mechanism 
     The film forwarding mechanism  52  forwards the instant film  110  one sheet at a time from the instant film pack  100  loaded in the film loading chamber  50  in order from a top of a stack direction. The film forwarding mechanism  52  comprises the claw  52   a  that moves forward and rearward in the forwarding direction F of the instant film  110 , and forwards the instant film  110  from the instant film pack  100  by scraping the instant film  110  in the case by the claw  52   a  one sheet at a time from the top of the stack direction. 
     Film Transport Mechanism 
     The film transport mechanism  54  transports the instant film  110  that is forwarded from the instant film pack  100  by the film forwarding mechanism  52 . The film transport mechanism  54  comprises the spreading roller pair  54 A. The spreading roller pair  54 A rotates by being driven by a motor, not illustrated, and pinches and transports the instant film  110 . The instant film  110  is subjected to the developing treatment while being transported by the spreading roller pair  54 A. That is, the developing treatment liquid in the pod portion is subjected to the spreading processing by crushing the pod portion  114  by the spreading roller pair  54 A. 
     Exposure Display 
     The exposure display  56  is a display for recording the image on the instant film  110 . The exposure display  56  records the image on the instant film  110  by exposing the instant film  110  by displaying the image. The exposure display  56  is one example of a first displaying unit. The exposure display  56  is comprised in a bottom surface portion of the film loading chamber  50 . In a case where the instant film pack  100  is loaded in the film loading chamber  50 , the exposure surface  110   a  of the instant film  110  accommodated inside the case  120  is arranged to face a displaying surface  56   a  of the exposure display  56  through the exposure opening  120   a.  The exposure display  56  has a size in which the instant film  110  can be exposed in one exposure. Accordingly, the displaying surface  56   a  that has a size greater than at least the observation region  118  of the instant film  110  is included. 
     The exposure display  56  is configured with a transmissive color liquid crystal display (LCD) comprising a backlight. 
       FIG. 7  is a diagram illustrating a schematic configuration of the exposure display and the image displaying display. 
     As illustrated in the drawing, the exposure display  56  comprises an exposure liquid crystal display  58  and an exposure backlight  60 . The exposure liquid crystal display  58  is configured with a transmissive color liquid crystal display. The exposure backlight  60  evenly irradiates an entire surface of a display region of the exposure liquid crystal display  58  with light from a rear of the exposure liquid crystal display  58 . The exposure backlight  60  comprises a rod-shaped lamp  60   a  that is a light source, and a light guide plate  60   b  that evenly guides light exiting from the rod-shaped lamp  60   a  to the entire surface of the display region of the exposure liquid crystal display  58 . 
     A louver plate  62  is comprised on the displaying surface  56   a  of the exposure display  56 . The louver plate  62  restricts a light exit direction of light from each pixel of the exposure display  56  to a constant range. The louver plate  62  is one example of a light exit direction restriction member. The louver plate  62  has a thin plate shape that is an exterior shape corresponding to the exposure opening  120   a  of the instant film pack  100 . In a case where the instant film pack  100  is loaded in the film loading chamber  50 , the louver plate  62  fits in the exposure opening  120   a  and abuts the exposure surface  110   a  of the instant film  110  accommodated in the case  120 . 
       FIG. 8  is an enlarged cross-sectional view of a part of the louver plate.  FIG. 9  is an enlarged front view of a part of the louver plate. 
     As illustrated in  FIG. 8 , the louver plate  62  has a two-layer structure and includes a light exit direction restriction layer  64  on an incidence surface  62   a  side and a protective layer  66  on an exit surface  62   b  side. The incidence surface  62   a  is a surface that is arranged to face the displaying surface  56   a  of the exposure display  56 , and the exit surface  62   b  is a surface that is arranged to face the exposure surface  110   a  of the instant film  110 . 
     The light exit direction restriction layer  64  is a layer that restricts a light exit direction of light from each pixel of the exposure display  56  to a constant range. The light exit direction restriction layer  64  is configured with a light blocking portion  64   a  having a lattice form and a light transmitting portion  64   b  divided by the light blocking portion  64   a.  The light blocking portion  64   a  is configured with a material (for example, a colored resin material (for example, black silicone rubber)) having a light blocking property and includes a wall surface that is perpendicular to the incidence surface  62   a  and the exit surface  62   b.  The light transmitting portion  64   b  is configured with a material (for example, glass or transparent silicone rubber) having a light transmitting property and constitutes an optical path that is perpendicular to the incidence surface  62   a  and the exit surface  62   b  of the louver plate  62 . 
     The protective layer  66  is a layer that protects the light exit direction restriction layer  64 . The protective layer  66  is configured with a material (for example, acrylic resin, polycarbonate, or vinyl chloride resin) having a light transmitting property. 
     The louver plate  62  having the above configuration selectively allows transmission of only light that is incident approximately perpendicularly to the incidence surface  62   a.  In the exposure display  56 , since the louver plate  62  is comprised on the displaying surface  56   a,  a light exit direction of light from each pixel P is restricted to a direction that is approximately perpendicular to the displaying surface  56   a.  Accordingly, the exposure surface  110   a  of the instant film  110  can be approximately perpendicularly irradiated with light of each pixel P, and blurriness of the image to be recorded can be prevented. 
     Image Displaying Display 
     The image displaying display  16  is configured with a touch panel display. As illustrated in  FIG. 7 , the image displaying display  16  comprises an image displaying liquid crystal display  68 , an image displaying backlight  70 , and a touch sensor  72 . The image displaying liquid crystal display  68  is configured with a transmissive color liquid crystal display. The image displaying backlight  70  evenly irradiates an entire surface of a display region of the image displaying liquid crystal display  68  with light from a rear of the image displaying liquid crystal display  68 . The image displaying backlight  70  comprises a rod-shaped lamp  70   a  that is a white light source, and a light guide plate  70   b  that evenly guides light exiting from the rod-shaped lamp  70   a  to the entire surface of the display region of the image displaying liquid crystal display  68 . The touch sensor  72  is comprised on a displaying surface  16   a  of the image displaying display  16 . The touch sensor  72  is one example of a touch operation detection unit. The touch sensor  72  detects a touch operation performed on the displaying surface  16   a  of the image displaying display  16 . 
     As illustrated in  FIG. 3  and  FIG. 7 , the image displaying display  16  is arranged to be stacked on the exposure display  56 . A light blocking wall  74  is comprised between the image displaying display  16  and the exposure display  56 . The light blocking wall  74  is one example of a light blocking member and prevents light of the backlight of one from leaking to the display region of the other. Accordingly, exposure of the instant film  110  due to light of the image displaying backlight  70  leaking to an exposure display  56  side can be prevented. 
     Electric Configuration 
       FIG. 10  is a block diagram illustrating an electric configuration of the printer-equipped digital camera. 
     As illustrated in the drawing, the printer-equipped digital camera  1  comprises a microcomputer (microcontroller)  80  comprising a central processing unit (CPU), a read only memory (ROM), and a random access memory (RAM). Driving of each unit is controlled by the microcomputer  80 . That is, the microcomputer  80  controls driving of the imaging lens  12 , the image sensor  42 , the film forwarding mechanism  52 , the film transport mechanism  54 , and the like. The microcomputer  80  controls each unit based on an operation input from an operation unit  92 . The operation unit  92  is configured with the power button  18  and the touch sensor  72 . The microcomputer  80  implements various control functions by executing a predetermined control program. 
     The printer-equipped digital camera  1  comprises an analog signal processing unit  82 , a digital signal processing unit  84 , a print image processing unit  86 , a memory  88 , a memory controller  88   a,  and a displaying controller  90 . 
     The analog signal processing unit  82  fetches an analog image signal of each pixel output from the image sensor  42  and performs a predetermined type of signal processing (for example, correlative double sampling processing or amplification processing) on the analog signal. The analog signal processing unit  82  includes an analog to digital converter/AD converter (ADC), and transforms the analog image signal after the predetermined type of signal processing into a digital image signal and outputs the digital image signal. 
     The digital signal processing unit  84  fetches the digital image signal output from the analog signal processing unit  82  and generates image data by performing a predetermined type of signal processing (for example, gradation transformation processing, white balance correction processing, gamma-correction processing, demosaicing, or YC transformation processing) on the digital image signal. The generated image data is output to the microcomputer  80 . 
     The print image processing unit  86  generates print image data by performing a predetermined type of image processing on the image data to be printed, under control of the microcomputer  80 . That is, image data to be displayed on the exposure display  56  is generated. This image data is image data that is optimized for exposure of the instant film  110 . 
     In the printer-equipped digital camera  1  of the present embodiment, since the instant film  110  of the mono-sheet type is used, left-right inversion processing of the image is performed as a part of image processing. In addition, since the instant film  110  is loaded upside down (a top and a bottom are reversed) in the printer-equipped digital camera  1 , up-down inversion processing is performed. 
       FIG. 11  is a conceptual diagram of generation of a print image. 
     In the drawing, (A) is an image represented by image data of a print target, and (B) is an image represented by the print image data. As illustrated in the drawing, the print image is an up-down and left-right inverted image of the original image. 
     The memory  88  stores various types of data including the image data. The memory  88  is configured with a non-volatile memory such as an electrically erasable programmable read only memory (EEPROM). The memory controller  88   a  reads and writes data in the memory  88  under control of the microcomputer  80 . 
     The displaying controller  90  displays the images on the image displaying display  16  and the exposure display  56  under control of the microcomputer  80 . For example, the displaying controller  90  is configured with large scale integration (LSI). 
       FIG. 12  is a block diagram of functions of the displaying controller. 
     In a case of displaying the image on the image displaying display  16 , the displaying controller  90  outputs displaying data to the image displaying liquid crystal display  68  and turns ON the image displaying backlight  70 . In a case of displaying the image on the exposure display  56 , the displaying controller  90  outputs the displaying data to the exposure liquid crystal display  58  and turns ON the exposure backlight  60 . 
     The microcomputer  80  functions as a displaying control unit  80   a  by executing a predetermined displaying control program and controls displaying of the image displaying display  16  and the exposure display  56  through the displaying controller  90 . 
     In a case where a mode of the printer-equipped digital camera  1  is set to an imaging mode, the displaying control unit  80   a  displays an image captured by the image sensor  42  on the image displaying display  16  in real time. That is, a live view image is displayed on the image displaying display  16 . In addition, an operation button (shutter button or the like) necessary for imaging is displayed on the image displaying display  16 . Furthermore, as necessary, information (an F number, a shutter speed, the number of imageable sheets, or the like) necessary for imaging is displayed on the image displaying display  16 . 
     In a case where the mode of the printer-equipped digital camera  1  is set to a playback mode, the displaying control unit  80   a  displays, on the image displaying display  16 , image data that is recorded in the memory  88 . 
     Furthermore, the displaying control unit  80   a  displays a setting screen for performing various types of setting on the image displaying display  16  in accordance with a call for the setting screen. 
     In a case of printing the image, the print image is displayed on the exposure display  56 . The displaying control unit  80   a  switches OFF displaying of the image displaying display  16 . 
     Effect of Printer-Equipped Digital Camera 
     Imaging 
     In a case where the printer-equipped digital camera  1  is powered ON, the printer-equipped camera  1  is started in the imaging mode. In the imaging mode, the image captured by the image sensor  42  is displayed on the image displaying display  16  in real time. That is, the live view image is displayed on the image displaying display  16 . A user checks adjustment of composition, a state of focusing on a main subject, and the like using the image displaying display  16  as a finder. 
       FIG. 13  is a diagram illustrating one example of displaying of the image displaying display in the imaging mode. 
     As illustrated in the drawing, the image displaying display  16  displays a live view image LI and various operation buttons. In the example illustrated in  FIG. 13 , a case where a shutter button SB, a playback button PB, and a menu button MB are displayed as the operation buttons is illustrated. The shutter button SB is a button for providing an instruction to record (capture) the image. The playback button PB is a button for providing an instruction to switch to the playback mode. The menu button MB is a button for providing an instruction to display a menu screen. 
     The user provides the instruction to record the image by touching the shutter button SB. In a case where the instruction to record the image is provided, recording image data is fetched from the image sensor  42 , subjected to a necessary type of signal processing, and recorded in the memory  88 . 
     Playback 
     In a case where the playback button PB displayed on the image displaying display  16  is touched in a state of the imaging mode, the mode of the printer-equipped digital camera  1  is switched to the playback mode. 
     In a case where switching is performed to the playback mode, image data of an image that is captured last (image that is recorded last in the memory  88 ) is read out from the memory  88  and displayed on the image displaying display  16 . 
       FIG. 14  is a diagram illustrating one example of displaying of the image displaying display in the playback mode. 
     As illustrated in the drawing, the image displaying display  16  displays a playback image PI and various operation buttons. In the example illustrated in  FIG. 14 , a case where a print button PrB, a camera button CB, and the menu button MB are displayed as the operation buttons is illustrated. The print button PrB is a button for providing a print instruction for the displayed image. The camera button CB is a button for providing an instruction to switch to the imaging mode. The menu button MB is a button for providing an instruction to display a menu screen. 
     In a case of printing the displayed image, the user touches the print button PrB. In a case of forwarding a frame, a flick operation is performed on a screen of the image displaying display  16 . The flick operation is an operation of swiping the screen with a fingertip. In a case of enlarging the displayed image, a pinch-out operation is performed on the screen of the image displaying display  16 . The pinch-out operation is an operation of increasing an interval between fingers while two fingers are in contact with the screen. In a case of reducing the displayed image, a pinch-in operation is performed on the screen of the image displaying display  16 . The pinch-in operation is an operation of decreasing an interval between fingers while two fingers are in contact with the screen. 
     Print 
     As described above, in a case where the print button PrB is touched during playback of the image in the playback mode, the displayed image is printed. In addition, in a case where an auto print mode is selected in the imaging mode, the captured image is printed without waiting for a print instruction. For example, setting ON and OFF of the auto print mode is performed by calling a setting screen for the mode from the menu screen. 
     In a case where the print instruction is provided, the image data of the print target is provided to the print image processing unit  86 , and the print image data is generated. The microcomputer  80  displays the generated print image data on the exposure display  56  by providing the print image data to the displaying controller  90 . Accordingly, the print image is displayed on the exposure display  56 . 
     The instant film  110  is exposed by displaying the image on the exposure display  56 . The instant film  110  is exposed by irradiating the instant film  110  with light from each pixel of the exposure display  56  through the louver plate  62 . The louver plate  62  has an effect of allowing transmission of only light that is approximately perpendicular to the exposure surface  110   a.  Accordingly, blurriness of the image can be prevented, and a high quality image can be printed. 
     The image is displayed at constant brightness for a constant time period. An exposure time period is set based on the brightness of the exposure display  56 . That is, the exposure time period is set to a time period in which the instant film  110  can be appropriately exposed. 
     In a case where a constant time period elapses from a start of displaying, displaying of the exposure display  56  is switched OFF, and the exposure is finished. In a case where the exposure is finished, the film forwarding mechanism  52  and the film transport mechanism  54  are driven. By driving the film forwarding mechanism  52 , the exposed instant film  110  is discharged from the case  120  by the claw  52   a.  The instant film  110  discharged from the case  120  is discharged from the film discharge port  20  by the spreading roller pair  54 A. In addition, the developing treatment is performed during discharging. That is, the developing treatment liquid in the pod portion is subjected to the spreading processing by crushing the pod portion  114  by the spreading roller pair  54 A, and the developing treatment is performed. 
       FIG. 15  is a diagram illustrating a transition state of screen displaying of the image displaying display in a case of printing in the playback mode. 
       FIG. 15(A)  illustrates a playback state of the image. In this state, in a case where the print instruction for the image in playback is provided by touching the print button, a print checking screen is displayed as illustrated in  FIG. 15(B) . In the print checking screen, an image of a print is displayed on the image displaying display  16 . That is, an image (image in a form of fitting an image of the print target in the observation region  118  of the observation surface  110   b  of the instant film  110 ) in a case where the image is printed on the instant film  110  is displayed. At the same time, an “OK” button for providing an instruction to execute printing and a “CANCEL” button for providing an instruction to stop printing are displayed. The user touches the “OK” button in a case of executing printing, and touches the “CANCEL” button in a case of stopping printing. In a case where the “CANCEL” button is touched, a return is made to a playback screen illustrated in  FIG. 15(A) . In a case where the “OK” button is touched, a screen for notifying execution of printing is displayed as illustrated in  FIG. 15(C) . In this screen, a message “printing will be performed” is displayed. Then, printing is executed. That is, a recording image is displayed on the exposure display  56 , and the instant film  110  is exposed. During the exposure, displaying of the image displaying display  16  is switched OFF as illustrated in  FIG. 15(D) . In a case where the exposure is finished, a return is made to the playback screen of the printed image as illustrated in  FIG. 15(A) . 
     Displaying Control of Image Displaying Display and Exposure Display 
     As described above, in the printer-equipped digital camera  1  of the present embodiment, displaying of the image displaying display  16  is switched OFF during the exposure. Accordingly, a peak value of power can be reduced, and a power load can be reduced. In addition, size reduction of a battery and also size reduction of the entire camera are achieved. 
       FIG. 16  is a timing chart of a displaying control of the image displaying display and the exposure display. 
     The drawing illustrates a form of displaying control in a case where the exposure starts at time t 2  and the exposure is finished at time t 3 . As illustrated in the drawing, while the instant film  110  is exposed by displaying the image on the exposure display  56 , displaying of the image displaying display  16  is switched OFF. 
     Displaying of the image displaying display  16  is switched OFF earlier than the start of the exposure by a constant time period. In other words, in a case of exposing the instant film, the exposure is started after an elapse of a constant time period (after an elapse of Δt) after displaying of the image displaying display  16  is switched OFF. 
     During the exposure, displaying of the image displaying display  16  is continuously switched OFF. In a case where the exposure is finished, displaying is switched ON after the elapse of the constant time period (after the elapse of Δt). That is, displaying of the exposure display  56  is switched OFF, and displaying is switched ON after the elapse of the constant time period from switching OFF. 
     During displaying of the exposure display  56 , displaying of the image displaying display  16  is always switched OFF. Accordingly, a peak value of power can be reduced, and a power load can be reduced. In a case where the exposure display is performing displaying and displaying of the image displaying display is switched OFF, the user may be notified that the exposure is being performed, by voice or a light source or the like separated from the image displaying display. Accordingly, even in a case where displaying of the image displaying display is switched OFF during the exposure, it can be perceived that the printer-equipped digital camera  1  is not powered OFF, and that the exposure is being performed. Alternatively, a mechanical notification unit of sound, vibration, or the like generated at a time of transporting the film by the film transport mechanism  54  can be used as a notification unit. Using the sound or vibration generated at the time of transporting the film as the notification unit can achieve power saving or reduce the number of components. 
     MODIFICATION EXAMPLE 
     Processing in Imaging Mode 
     In a case of printing in the imaging mode, driving of the imaging unit is preferably switched OFF during the exposure. More specifically, during displaying of the image on the exposure display  56 , driving of the imaging lens  12  and the image sensor  42  is switched OFF. Accordingly, the peak value of power can be more effectively reduced. In this case, the microcomputer  80  functions as an imaging control unit and controls driving of the imaging lens  12  and the image sensor  42 . 
     Modification Example 1 of Displaying Control of Image Displaying Display and Exposure Display 
     Controlling ON and OFF of displaying of the image displaying display  16  and the exposure display  56  may be performed by controlling ON and OFF of the backlight. 
     The backlight consumes more power than driving of the liquid crystal display. Thus, the power load can be sufficiently reduced by controlling ON and OFF of displaying by controlling ON and OFF of the backlight. In addition, the control can be simplified. 
     Modification Example 2 of Displaying Control of Image Displaying Display and Exposure Display 
     In a case of controlling ON and OFF of displaying of the image displaying display  16  and the exposure display  56  by controlling ON and OFF of the backlight, the same image may be displayed on the image displaying display  16  and the exposure display  56 . That is, the same image may be displayed on each liquid crystal display by outputting the same displaying data from the displaying controller  90 . Accordingly, the displaying control can be simplified. 
     In a case of the present example, during the exposure, the image displaying liquid crystal display  68  displays the image during the exposure (image to be recorded on the instant film  110 ). However, since the image displaying backlight  70  is switched OFF, the image cannot be visually recognized. Similarly, while the live view image is displayed on the exposure liquid crystal display  58  during imaging, the instant film  110  is not exposed since the exposure backlight  60  is switched OFF. 
     Modification Example 3 of Displaying Control of Image Displaying Display and Exposure Display 
     In a case of displaying the same image on the image displaying display  16  and the exposure display  56 , the image displaying display  16  and the exposure display  56  may be configured to be connected to the same image output interface. 
       FIG. 17  is a conceptual diagram of a case where the image displaying display and the exposure display are connected to the same image output interface. 
     As illustrated in the drawing, the image displaying display  16  and the exposure display  56  are connected to a same image output interface  90   a  for the displaying controller  90 . More specifically, the image displaying liquid crystal display  68  of the image displaying display  16  and the exposure liquid crystal display  58  of the exposure display  56  are connected to the same image output interface  90   a  of the displaying controller  90 . Accordingly, the same displaying data is provided to the image displaying liquid crystal display  68  and the exposure liquid crystal display  58  from the displaying controller  90 , and the same image is displayed. 
     Sharing an interface for the displaying control between the image displaying display  16  and the exposure display  56  can further simplify a configuration. 
     Modification Example 4 of Displaying Control of Image Displaying Display and Exposure Display 
     Controlling ON and OFF of displaying of the image displaying display  16  and the exposure display  56  may be performed by switching the backlight to be turned ON using a switch. 
       FIG. 18  is a conceptual diagram of a case where controlling ON and OFF of displaying of the image displaying display and the exposure display is performed by switching the backlight to be turned on using the switch. 
     As illustrated in the drawing, the image displaying backlight  70  and the exposure backlight  60  are selectively turned on using a switch  90   b.  Accordingly, any one of the image displaying display  16  and the exposure display  56  can selectively perform displaying. 
     Modification Example 5 of Displaying Control of Image Displaying Display and Exposure Display 
     As described above, in a case of exposing the instant film  110 , the image is displayed on the exposure display  56  at the constant brightness for the constant time period. Accordingly, the brightness of the exposure display  56  is constant. 
     Meanwhile, it is preferable that the brightness of the image displaying display  16  is freely adjustable by the user. That is, it is preferable to separately dispose a brightness adjustment unit so that the user can adjust the brightness to any brightness. Accordingly, favorable visibility can be secured at all times regardless of a usage environment. 
     For example, brightness adjustment is performed by preparing a brightness adjustment screen and performing a screen operation. For example, the brightness adjustment screen is configured to be called from the menu screen. Besides, it can be configured that adjustment is performed by disposing a brightness adjustment dial or the like in the camera body  10 . 
     While the constant brightness is set for the exposure display  56 , the brightness is set to be higher than the brightness of the image displaying display  16  since the louver plate  62  is comprised in the exposure display  56 . 
     Modification Example of Image Displaying Display and Exposure Display 
     While both of the image displaying display  16  and the exposure display  56  are configured with a liquid crystal display in the embodiment, a displaying device used as the image displaying display  16  and the exposure display  56  is not limited thereto. Besides, for example, a flat panel display such as an organic electro-luminescence display (OELD), a plasma display, a field emission display (FED), or an electronic paper can be used. The image displaying display  16  and the exposure display  56  do not need to be the same displaying device. For example, one can be configured with a liquid crystal display, and the other can be configured with an organic EL display. The image displaying display  16  and the exposure display  56  having different displaying sizes may be used. 
     In a case where the image displaying display  16  and the exposure display  56  are configured with a liquid crystal display, a backlight having a surface light emitting configuration may be used. 
     Considering recording on the instant film, a pixel pitch (distance between adjacent pixels) of the exposure display  56  is preferably less than or equal to 200 μm. In order to obtain a more favorable image, the pixel pitch is preferably less than or equal to 150 μm, more preferably less than or equal to 125 μm, and still more preferably less than or equal to 85 μm. 
     While glass as a protective layer is generally comprised on a displaying surface of a flat panel display such as a liquid crystal display, a protective layer such as a glass plate having a small thickness is preferably used in a displaying device used in the exposure display  56  in order to decrease a distance from each pixel to the exposure surface of the instant film. 
     Modification Example of Layout of Image Displaying Display and Exposure Display 
     While it is configured that the image displaying display  16  and the exposure display  56  are arranged to be stacked back to back in the embodiment, a layout of the image displaying display  16  and the exposure display  56  is not limited thereto. For example, the image displaying display  16  and the exposure display  56  can be configured to be arranged with the film loading chamber  50  interposed therebetween. In this case, in a case where the instant film pack  100  is loaded in the film loading chamber  50 , the image displaying display  16  and the exposure display  56  are arranged with the instant film  110  interposed therebetween. 
       FIG. 19  is a diagram illustrating a schematic configuration of the printer-equipped digital camera in a case where the image displaying display and the exposure display are arranged with the instant film pack interposed therebetween. 
     The drawing illustrates an example of a case where the image displaying display  16  is arranged in the film lid cover  14 . By arranging the image displaying display  16  in the film lid cover  14 , the image displaying display  16  and the exposure display  56  are arranged with the instant film pack  100  interposed therebetween. 
     The light blocking wall can be omitted by arranging the image displaying display  16  and the exposure display  56  with the instant film pack  100  interposed therebetween. 
     Modification Example of Imaging Unit 
     A plurality of the imaging units may be comprised. For example, the imaging unit may be comprised on each of a front surface and a rear surface of the camera body  10 . Alternatively, the imaging unit may be rotatably held in the camera body so that an imaging direction can be adjusted to any direction. 
     Modification Example of Instant Film 
     The instant film to be used is not limited to the mono-sheet type, and an instant film of a peel-apart type or the like may be used. 
     Modification Example of Louver Plate 
     While the louver plate as the light exit direction restriction member is configured to have a two-layer structure in the embodiment, the louver plate as the light exit direction restriction member may comprise at least the light exit direction restriction layer. 
     In the light exit direction restriction layer, the light transmitting portion may at least allow passage of light. Accordingly, the light transmitting portion can be configured with a cavity, and the light exit direction restriction member can be configured with only the light blocking portion. 
     In the light exit direction restriction layer, the light blocking portion may be configured with a material absorbing light or may be configured with a material reflecting light. A colored resin material can be used as the light blocking portion. For example, black silicone rubber can be used. A neutral density filter (ND filter) can be used as the material absorbing light. The ND filter means a filter having a neutral optical density and is a filter that can evenly absorb (absorbance is greater than or equal to 50% and less than or equal to 99.999%; transmittance is greater than or equal to 0.001% and less than or equal to 50%) light without affecting a wavelength in a wavelength range used for exposure. 
     While the light exit direction restriction layer of the louver plate is configured with a single layer in the embodiment, the light exit direction restriction layer can be configured with a plurality of layers. 
       FIG. 20  is a diagram illustrating one example of the louver plate configured with two layers of light exit direction restriction layers. 
     As illustrated in the drawing, in the louver plate  62  of the present example, the light exit direction restriction layer  64  has a two-layer structure. More specifically, a first light exit direction restriction layer  64   y  and a second light exit direction restriction layer  64   x  are included. 
     The first light exit direction restriction layer  64   y  has a structure in which a light blocking portion  64   y   1  extending in the x direction is arranged at a constant pitch in the y direction. A light transmitting portion  64   y   2  is configured between adjacent light blocking portions  64   y   1 . 
     The second light exit direction restriction layer  64   x  has a structure in which a light blocking portion  64   x   1  extending in the y direction is arranged at a constant pitch in the x direction. A light transmitting portion  64   x   2  is configured between adjacent light blocking portions  64   x   1 . 
     By arranging the first light exit direction restriction layer  64   y  and the second light exit direction restriction layer  64   x  to be stacked, a light blocking portion having a lattice form is configured as a whole. Such a louver plate can be configured by stacking a louver plate (louver film) constituting the first light exit direction restriction layer  64   y  and a louver plate (louver film) constituting the second light exit direction restriction layer  64   x.    
     A pitch (distance between adjacent light blocking portions) of the light blocking portion in the light exit direction restriction layer is preferably less than or equal to 80 μm and more preferably less than or equal to 65 μm. By setting the pitch within this range, light from each pixel of the exposure display in an inclined direction can be appropriately blocked, and a high quality image can be recorded on the instant film. 
     An arrangement direction of the light blocking portion in the light exit direction restriction layer does not necessarily match an arrangement direction of each pixel of the exposure display. A difference in angle can be provided between the arrangement direction of the light blocking portion in the light exit direction restriction layer and the arrangement direction of each pixel of the exposure display. Providing the difference in angle can suppress occurrence of moire. This difference in angle is preferably 1 degrees to 45 degrees, more preferably 5 degrees to 40 degrees, and still more preferably 10 degrees to 35 degrees. 
     A thickness of the light exit direction restriction layer is preferably greater than or equal to 1.5 mm and less than or equal to 4.0 mm. The thickness is more preferably greater than or equal to 2.0 mm and less than or equal to 4.0 mm and still more preferably greater than or equal to 2.5 mm and less than or equal to 4.0 mm. The light exit direction can be more effectively restricted by increasing the thickness of the light exit direction restriction layer. Meanwhile, in a case where the thickness of the light exit direction restriction layer is increased, the recording image is likely to be blurred. Accordingly, the light exit direction restriction layer is preferably configured within the above range of thickness. In a case where the light exit direction restriction layer is configured with a plurality of layers, this thickness is a total thickness of the plurality of layers. 
     The protective layer may not be necessary but is preferably comprised in order to protect the light exit direction restriction layer. The protective layer is not particularly limited, provided that the protective layer is transparent and allows passage of light. For example, a plastic plate configured with acrylic resin, polycarbonate, or vinyl chloride resin can be used as the protective layer. 
     A thickness of the protective layer is preferably greater than or equal to 0.1 μm and less than or equal to 500 μm. In a case where the thickness of the protective layer is greater than or equal to 0.1 μm, not only an effect of protecting the light exit direction restriction layer but also an effect of preventing moire from standing out is achieved. In addition, an effect of preventing a defect of an image caused based on a defect or a structure of the light exit direction restriction layer from standing out is achieved. In a case where the thickness of the protective layer is less than or equal to 500 μm, blurriness of the recording image can be prevented. 
     Modification Example of Print Image Processing 
     In order to print a higher quality image, a predetermined type of image processing may be performed on an exposure image, that is, the image displayed on the exposure display. For example, considering that a difference in density of the recording image is smaller than that of a displaying image, processing of increasing (highlighting) a high-frequency component (edge part) of the displaying image in advance, that is, so-called edge highlighting processing, may be performed. For example, a well-known method such as unsharp mask processing can be employed as the edge highlighting processing. 
     EXPLANATION OF REFERENCES 
     
         
           1 : printer-equipped digital camera 
           10 : camera body 
           12 : imaging lens 
           14 : film lid cover 
           14   a:  hinge 
           16 : image displaying display 
           16   a:  displaying surface of image displaying display 
           18 : power button 
           20 : film discharge port 
           42 : image sensor 
           50 : film loading chamber 
           52 : film forwarding mechanism 
           52   a:  claw 
           54 : film transport mechanism 
           54 A: spreading roller pair 
           56 : exposure display 
           56   a:  displaying surface of exposure display 
           58 : exposure liquid crystal display 
           60 : exposure backlight 
           60   a:  rod-shaped lamp 
           60   b:  light guide plate 
           62 : louver plate 
           62   a:  incidence surface of louver plate 
           62   b:  exit surface of louver plate 
           64 : light exit direction restriction layer 
           64   a:  light blocking portion of light exit direction restriction layer 
           64   b:  light transmitting portion of light exit direction restriction layer 
           64   y:  first light exit direction restriction layer 
           64   y   1 : light blocking portion of first light exit direction restriction layer 
           64   y   2 : light transmitting portion of first light exit direction restriction layer 
           64   x:  second light exit direction restriction layer 
           64   x   1 : light blocking portion of second light exit direction restriction layer 
           64   x   2 : light transmitting portion of second light exit direction restriction layer 
           66 : protective layer 
           68 : image displaying liquid crystal display 
           70 : image displaying backlight 
           70   a:  rod-shaped lamp 
           70   b:  light guide plate 
           72 : touch sensor 
           74 : light blocking wall 
           80 : microcomputer 
           80   a:  displaying control unit 
           82 : analog signal processing unit 
           84 : digital signal processing unit 
           86 : print image processing unit 
           88 : memory 
           88   a:  memory controller 
           90 : displaying controller 
           90   a:  image output interface 
           90   b:  switch 
           92 : operation unit 
           100 : instant film pack 
           110 : instant film 
           110   a:  exposure surface of instant film 
           110   b:  observation surface of instant film 
           112 : exposure region comprised on exposure surface 
           114 : pod portion 
           114   a:  developing treatment liquid pod 
           116 : trap portion 
           116   a:  absorbent material 
           118 : observation region comprised on observation surface 
           118   a:  frame 
           120 : case of instant film pack 
           120   a:  exposure opening 
           120   b:  discharge port 
           120   c:  claw opening portion 
         CB: camera button 
         F: forwarding direction of instant film 
         LI: live view image 
         MB: menu button 
         P: pixel 
         PB: playback button 
         PI: playback image 
         PrB: print button 
         SB: shutter button