JP2008250317A - Image display apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image display apparatus which allows a user to easily view digital images even without any personal computer and other display apparatus and can save the power consumption to attain an energy saving. <P>SOLUTION: A control microcomputer 42 of the image display apparatus 1 reads image information from a memory card 12 and performs image signal processing in an image processing block 43 to generate and display an image signal on a display part 4. When a human recognition sensor 5 recognizes that a human body approaches, the control microcomputer 42 supplies electric power to the display part 4 from a power supply block to turn on the display part 4. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an image display device that displays a digital image taken by, for example, a digital still camera.

  Conventionally, images taken with a silver salt film camera or an electronic still camera (including a digital still camera) are often used for viewing, and there are various forms of viewing methods. is doing.

  For example, when viewing an image taken with a camera using a silver halide film, for example, a photograph obtained by printing an image taken with the camera on a photographic paper is put in a photo frame or frame. Appreciation, viewing of photos arranged in a photo album, viewing of a positive film on a screen with a slide projector in the case of a positive film, etc. can be considered.

  In addition, as an appreciation mode when an image captured by an electronic still camera (including a digital still camera) is viewed, for example, an image captured by the camera is displayed on a display device connected to a personal computer. In the case of appreciation and when the camera is provided with a display device for image reproduction, forms such as appreciation by displaying on the display device are conceivable.

  Patent document 1 is known as a prior art.

JP 05-108732 A

  However, when viewing an image taken with a camera using a silver salt film, for example, if the photograph is placed in a frame or a forehead, only the same photograph can be viewed at all times, and another photograph can be viewed. Needs to be replaced. Also, when viewing photos in a photo album, it is necessary to take out the album and open it. For example, to view 36 photos, you must visit the album page and watch it all the time. I can't do anything. When viewing a positive film on a screen using a slide projector, the surroundings must be darkened, and a screen is required, resulting in a large scale as a whole.

  On the other hand, when viewing images taken by an electronic still camera (including a digital still camera) or the like, for example, when viewing a plurality of photos obtained from a silver halide film, the photo frame or frame There is no need to replace the photos, and there is no need to go through the pages of the album, and there is no need for a large-scale device such as a slide projector, but for example, a personal computer and a display device connected to it are necessary. Further, in the case of a camera equipped with a display device for image reproduction, images cannot be viewed unless the display device is used. In recent years, for example, a celebrity photo book is digitally recorded and recorded on an external recording medium, and the external recording medium is sold. However, the digital recording recorded on the external recording medium is also performed. Even when viewing images, for example, a personal computer and a display device connected thereto are required, and there is no dedicated device for easily displaying digital images.

  Therefore, the present invention has been made in view of such circumstances, and can easily view digital images without owning a personal computer and a display device, and can reduce power consumption. An object of the present invention is to provide an image display device capable of obtaining an energy saving effect.

  In order to solve the above problems, an image display apparatus according to the present invention includes a recognition unit that recognizes the approach of a human body, and an image signal that generates an image signal by performing predetermined image signal processing on image data from a recording medium. A processing unit; an image display unit that displays an image signal from the image signal processing unit; and a control unit that controls power supply to the image display unit based on the approach of the human body. And

  According to the present invention, when the recognition unit recognizes the approach of the human body, the power supply to the image display unit can be controlled to be on based on the approach of the human body, and the power consumption can be reduced to save energy. An effect can be obtained.

  Embodiments of an image display apparatus according to the present invention will be described below with reference to the drawings. This embodiment is an image display device 1 that displays image data recorded on a memory card, which is an external recording medium, on a display unit, and shows an appearance in FIGS. 1 and 2. FIG. 1 is a front view of the image display device 1, and FIG. 2 is a perspective view from the back side.

  The image display device 1 includes, in order from the outermost side, that is, the viewer side, a transparent cover plate 2 made of acrylic, an opening for visually recognizing the display unit 4, and an opening for a human body recognition sensor 5 described later. The decorative plate 3, the display unit 4, and the main body unit 7 provided with the human body recognition sensor 5 are joined together by the fixing stopper 6 and assembled.

  The display unit 4 is a thin and weighing display such as a liquid crystal display or a plasma display, and displays an image based on a display image signal supplied from an image processing block described later.

  When the apparatus is installed horizontally, an operation button group 8 and a power switch 19 of the operation unit 10 to be described later are disposed on the upper portion of the main body unit 7 as shown in FIG. Further, a slide switch 46 for setting a sleep time, which will be described later, is provided from the center of the right end portion on the back side of the main body 7. The image display device 1 is supported by a leg portion 9 fixed to the housing of the main body 7 by screws and the transparent cover plate 2 and is installed on a desk, for example.

  FIG. 3 shows a front view of the state in which the image display device 1 fully rotates the operation unit. The operation unit 10 locks the fulcrum 21 with respect to the main body 7 and rotates 90 degrees. The illustration shows a state in which the operation unit 10 is rotated 90 degrees in the direction of arrow R, and the operation unit 10 can be accommodated in the main body unit 7 by rotating 90 degrees in the direction of arrow L from this state.

  The operation unit 10 is provided with a memory card insertion unit 11 that allows the memory card 12 to be inserted from the outside. A memory card slot for connecting a memory card 12 is provided inside the memory card insertion portion 11.

  The memory card 12 is a recording medium capable of storing at least digital image data such as a memory card using a flash EEPROM (Electically Erasable and Programmable ROM) abbreviated as a so-called SSFDC (Solid-State Floppy Disk Card) or a so-called miniature card. .

  The operation unit 10 is provided with a fast forward search button 13, a play / stop button 14, a fast reverse search button 15, a rotate (ROTATE) button 16, and a display (DISPLAY) button 17 from the upper part on the right end side. A cross key 18 is provided at the bottom.

  The fast-forward search button 13 is a button for fast-forwarding and searching the image information recorded on the memory card 12. The play / stop button 14 is a button for playing back and stopping the image information recorded on the memory card 12. The fast reverse search button 15 is a button for performing a fast reverse search on the image information recorded on the memory card 12. The rotate button 16 is a button for recording display direction information of an image to be displayed on the display unit 4 on the memory card 12. The display button 17 is a button for turning on / off the display of, for example, the shooting date and index information added to the image information. The cross key 18 is a button for selecting and confirming a menu item displayed on the display unit 4. Each key 18a, 18c, 18d, and 18b for instructing up, down, left, and right is provided, and a confirmation click button 18e is provided at the center.

  In the state shown in FIG. 3, the character display regarding each button of the operation unit 10 is visually recognized from the front by the operator (viewer), so that the operator can operate while viewing the display unit 4. When the operation unit 10 is rotated 90 degrees in the direction of arrow L, the operation buttons 13 to 17 are positioned on the upper portion of the main body unit 7 to form the operation button group 8 described above. Since the character display of each button is also provided, for example, on the top of the decorative board 3, the operator can operate each of the buttons 13 to 17 even when the operation unit 10 is stored in the main body unit 7.

  In addition, since the operation unit 10 is configured to spread horizontally, the device is not placed vertically when operated, and as a result, the display characters on the screen need only be considered in the horizontal direction.

  Further, since the memory card insertion portion 11 is also attached to the operation portion 10, the insertion portion 11 is not exposed when the operation portion 10 is closed.

  FIG. 4 shows a rear view of the image display device 1 in a state where the operation unit is fully rotated. In this state, the operation unit 10 is rotated 90 degrees with respect to the main body unit 7.

  The leg 9 has two mounting holes 20a and 20b arranged in the vertical direction. If it joins to the main-body part 7 through the screw 20c in the upper attachment hole 20a, the leg part 9 will be used long. On the other hand, when the leg portion 9 is joined to the main body portion 7 through the screw 20c in the lower mounting hole 20b, the leg portion 9 is used for a short time. Since the leg portion 9 supports the apparatus together with the transparent cover plate 2, if the leg portion 9 is long, the display unit 4 rises with respect to the installation surface on the desk, for example. If the leg portion 9 is short, the display portion 9 lies relatively on the installation surface. By providing two holes in this way, the viewer can select an angle with respect to the installation surface. Further, the leg portion 9 has the center of the bottom side shifted to the right side from the position of the hole, and extended to the right side as seen from the back side. This is so that the image display device 1 can be stably supported even when it is placed vertically.

  The main body 7 is also provided with fixed operation buttons. A power switch 19 attached to the upper part, a bright (BRIGHT) + button 47a, and a bright-button 47b for adjusting the brightness of the display part 4 attached to the side as viewed from the back side. Also provided on the back is a slide switch 46 that allows the operator to set a time for the display state to continue or a time for sleep. A speaker 48 is provided at the lower part of the side surface. In addition, a connection portion 22 to which a DC power source DC is connected is provided at the lower left portion when viewed from the back side.

  FIG. 5 shows a side surface where the bright + button 47a, the bright-button 47b and the speaker 48 are installed. As described above, the image display device 1 is supported by the leg portion 9 and the transparent cover plate 2 and placed on the installation surface 23 of the desk, for example.

  Next, the internal configuration of the image display apparatus 1 will be described with reference to the block diagram of FIG.

  In the memory card 12, image information already taken by an electronic still camera or the like is recorded as compressed image data.

  When the image recorded on the memory card 12 is reproduced, the control microcomputer (microcomputer) 42 reads the compressed image data from the memory card 12 via the memory card controller 40 and records it in the built-in DRAM. The compressed image data is decompressed by the image processing block 43 and written back to the DRAM. The image data written back to the DRAM is processed by the image processing block 43 and then displayed on the display unit 4.

  In particular, the image display apparatus 1 uses the control microcomputer 42 to record display direction information of an image to be displayed on the display unit 3 on the memory card 12 via the memory card controller 40 and to read the display direction read from the memory card 12. A display image signal corresponding to the information is displayed on the display unit 4.

  The display direction information is information related to a direction when displaying an image. Specifically, when the operator first reads out the image information from the memory card 12 and displays it on the display unit 4, the information indicates the up and down direction at the time of display while pressing the rotate button 16 of the operation unit 10. If the rotate button 16 is pressed at most three times with respect to one image, the image can be rotated clockwise, for example, and the user's favorite vertical direction can be designated.

  The control microcomputer 42 writes the display direction information obtained by rotating the image through the image processing block 43 in accordance with the press of the rotate button 16 to the memory card 12 together with the image information. The memory card 12 in which the display direction information is written may be inserted into the same image display device 1 as it is, or may be inserted into another image display device.

  For example, when the operator next tries to display an image on the display unit 4 while being inserted in the same image display device 1, the image can be displayed in the vertical direction according to the display direction information. Even if the installation state of the image display device 1 is different from that at the time of recording the display direction information, the vertical direction can be displayed as it is. This is because the position detection switch 41 detects the installation state of the image display apparatus 1 such as horizontal installation or vertical installation, sends a detection output to the control microcomputer 42, and the control microcomputer 42 receives the memory card 12 from the memory card controller 40. This is possible by reading the display direction information. As the position detection switch 41, a switch in which a movable element moves in two directions or a switch in which a pendulum type element moves in all directions can be used.

  A process from recording the display direction information to the memory card 12 to displaying an image according to the display direction information will be described below with reference to FIGS.

  First, as shown in FIG. 7, the operation unit 10 is taken out, the power switch 19 is turned on in FIG. 8, the memory card 12 is inserted, and the image 24 is rotated while displaying each image 24 on the display unit 4. The button 16 is pressed a maximum of three times to determine the vertical direction, and information related to the vertical direction is recorded on the memory card 12 together with the image 24 information as the display direction information.

  Then, when the next reproduction is performed, the image display device 1 is displayed horizontally in the right direction as shown in FIG. 9 or in the vertical direction as shown in FIG. it can. In the case of being vertically arranged, some non-display areas 26 and 27 are formed above and below the display unit 4.

  Furthermore, the image display apparatus 1 includes the human body recognition sensor 5 shown in FIGS. 1 to 6. When the approach of the human body is recognized, the display state of the display unit 4 can be switched. Specific examples of the human body recognition sensor 5 include, for example, an infrared sensor that senses infrared rays generated from the human body, an ultrasonic sensor that generates ultrasonic waves and senses the approach of a person or an object by reflected waves, laser light, LED ( Issued diode) Various recognition sensors such as an optical sensor that generates light or the like and senses the approach of a person or an object by reflected light can be considered. In particular, the image display device 1 outputs a detection output when, for example, a hand is held within 20 cm of the space in front of the human body recognition sensor 5.

  When receiving the detection from the human body recognition sensor 5, the control microcomputer 42 turns on / off the supply of power from the power supply block (not shown) to the display unit 4. That is, when it is detected by the human body recognition sensor 5 that a person holds a hand, the power from the power supply block is supplied to the display unit 4 and the display unit 4 is turned on.

  In addition, if the display time is set to 30 minutes, 60 minutes, or the like by the slide switch 46 for switching the sleep disposed on the back surface of the apparatus main body 7, it is detected that the person holds the hand. The display unit 4 can be turned on only for a set time such as 30 minutes or 60 minutes.

  Further, since the transparent cover plate 2, the decorative plate 3, and the display main body 7 constituting the image display device 1 can be disassembled as shown in FIG. 11, the decorative plate 3 is adapted to the installation location, for example, the atmosphere of the room. It can also be changed. The transparent cover plate 2, the decorative plate 3, and the display main body 7 are connected by inserting the fixing stopper 6 into the fixing fixing portion 29 of the display main body 7 through the hole 28 of the decorative plate 3. The decorative board 3 is prepared with different colors and designs.

  Further, in the image display device 1, the operation unit 10 is rotated 90 degrees around the fulcrum 21 shown in FIGS. 3 and 4, but the image display device 30 of the type shown in FIG. It is good.

  That is, the image display device 30 slides and pulls out the operation unit 33 including various operation buttons 34 and 35 with respect to the display main body 31 including the display unit 32. The operation unit 33 includes a memory card insertion unit 36 for inserting a memory card 37. For this reason, this image display device 30 also has a structure in which the insertion slot is not exposed to the outside when the operation unit 33 is closed.

  Next, another embodiment of the present invention will be described below. Another embodiment is an image display device 50 whose appearance is shown in FIGS. 13 and 14. FIG. 13 shows a view of the image display device 50 as seen from an oblique front, and FIG. 14 shows a view as seen from an oblique back.

  In FIG. 13, the image display device 50 includes a case 51 having a photo photographic shape with a decorative design. In addition, a display unit 52, an infrared element 54, an optical sensor 55, a human body recognition sensor 56, and an operation button 57 are arranged on the front surface of the housing 51. For example, a memory card serving as an external recording medium is placed on the upper portion of the housing 51. A socket 53 for mounting is arranged.

  In FIG. 14, on the back side of the casing 51, a leg portion 59 for standing the casing 51 and a socket 58 for a serial cable described later are arranged. Note that the case illustrated in FIGS. 13 and 14 uses a dry battery or a secondary battery as a power source, and therefore there is no power cord. Of course, when power is supplied from the outside, a power cord is provided on the back side, for example.

  In the examples of FIGS. 13 and 14, a case having a photo-shaped shape is given as the case having a decorative design, but a case having a frame shape may be used.

  FIG. 15 shows an internal configuration of the image display device 50. In FIG. 15, a socket 58 is a socket for connecting a serial cable, for example. The infrared element (IrDA) 54 is an infrared communication I / O port for performing communication using infrared rays. Therefore, the image display device 50 can be connected to an external device via the socket 58 or the infrared element 54. As an external device, a digital still camera, a personal computer, a film scanner, etc. for supplying at least digital image data can be considered as will be described later. The image display device 50 receives digital image data from the external device described above via the socket 58 or the infrared element 54. It is assumed that the data communication side using the infrared communication element 54 is selected as the data communication between the image display device 50 and the external device in the normal state.

  The communication changeover switch 61 is switching means for selectively switching between data communication via the socket 58 and data communication via the infrared element 54 and sending the data communication to the communication block 62. In this image display device 50, as described above, the data communication side using the infrared element 54 in the normal state is selected, but when the serial cable is connected to the socket 58, the communication changeover switch 61 operates. The data communication side via the socket 58 is selected.

  The communication block 62 supplies data from the external device received via the infrared element 54 or the socket 58 and further via the communication changeover switch 61 to the built-in memory 63 according to a predetermined rule.

  The socket 53 is a socket for connecting an external recording medium. Therefore, the image display device 50 can be connected to an external recording medium via the socket 53. As the external recording medium, a memory card as described above is used. The socket 53 when the memory card is used includes, for example, a memory card slot. In the image display device 50, digital image data is received from an external recording medium via the socket 53, and the digital image data received via the socket 53 is sent to the communication / medium changeover switch 64. In this image display device 50, it is possible to provide a plurality of sockets 53 for connecting an external recording medium. In this way, a plurality of sockets 53 are provided in the image display device, and an external recording medium is attached to each socket. In some cases, data communication between these external recording media is also possible.

  The built-in memory 63 is a rewritable memory built in the image display device 50, and is a digital signal from an external device supplied via the socket 58 or the infrared element 54 and further via the communication changeover switch 62 and the communication block 62. The image data is temporarily stored, and the stored digital image data is sent to the communication / medium changeover switch 64. Since the built-in memory 63 is rewritable, digital image data from the external device can be replaced as necessary.

  The communication / medium changeover switch 64 selectively switches between digital image data supplied from an external recording medium via the socket 53 and digital image data read from the built-in memory 63, and sends it to the image processing block 65. Switching means. Here, the digital image data read from the built-in memory 63 in the normal state is sent to the image processing block 65, but when the external storage medium is loaded in the socket 53, the communication / medium switching is performed. The switch 64 operates and the digital image data side from the external storage medium via the socket 53 is selected.

  The image processing block 65 is read from the built-in memory 63 and supplied from the digital image data supplied via the communication / medium changeover switch 64 or from the socket 53 and supplied via the communication / medium changeover switch 64. Predetermined signal processing is performed on the image data, and a display image signal for display on the display unit 52 is generated.

  The display unit 52 is a thin and weighing display such as a liquid crystal display or a plasma display, and displays an image based on the display image signal supplied from the image processing block 65.

  The position detection switch 66 is provided as display direction determining means for determining the direction of image display on the display unit 52 in accordance with the installation status of the image display device 50 main body. Specific examples of the position detection switch 66 include, for example, a direction selection switch for the user to selectively set the image display direction, a gravity sensor, and the like, and how the image display device 50 is placed. It is conceivable to use an automatic position detector or the like for automatically detecting whether or not the gravity sensor automatically detects and whether to set the direction of image display in accordance with the placed state. Note that it is desirable to use the automatic position detector in order to save the user from the trouble of the direction selection operation. The position detection signal from the position detection switch 66 is sent to the image processing block 65.

  Accordingly, the image processing block 65 in this case determines the image display direction on the display unit 52 in accordance with the position detection signal, and causes the display unit 52 to display a display image corresponding to the determined display direction. That is, in the case where the display screen of the display unit 52 has a quadrangular shape composed of V and H sides as shown in FIG. 16, for example, the image display device 50 is placed in a vertical position (vertical direction), for example. For example, as shown in FIG. 16A, the image processing block 65 indicates that the V side of the display screen of the display unit 52 is in the vertical direction and the H side is in the vertical direction. The display direction of the display image 70 on the display unit 52 is determined so as to be in the horizontal direction, and a display image corresponding to the determined display direction is displayed on the display unit 52. On the other hand, for example, in the case where the display screen of the display unit 52 has a quadrangular shape composed of the V side and the H side, the position detection signal indicates that the image display device 50 is placed in the horizontal position, for example. 16B, the image processing block 65 is displayed on the display unit 52 so that, for example, the H side of the display screen of the display unit 52 is in the vertical direction and the V side is in the horizontal direction. The display direction of the display image 70 is determined, and a display image corresponding to the determined display direction is displayed on the display unit 52.

  In the example of FIG. 16, the shape of the display screen of the display unit 52 is a rectangle whose V side is longer than the H side, but a rectangle whose H side is longer than the V side may be used. Squares with equal lengths on the H sides may be used. Furthermore, the shape of the display screen of the display unit 52 is not limited to a rectangle or a square, but may be any shape such as a circle, an ellipse, a trapezoid, various polygons, etc. The vertical direction of the display image 70 displayed on the display unit 52 is determined according to the situation where the image display device 50 is placed. In other words, in the image display device 50, the shape of the display screen of the display unit 52 has a predetermined direction such as a vertical direction or a horizontal direction as a display direction, such as a circle, a hexagon, an octagon, or the like. Even if the shape is difficult to be displayed, the vertical direction of the display image 70 displayed on the display unit 52 can be determined according to the situation where the main body of the image display device 50 is placed. Of course, it is possible not to determine the display direction according to the situation where the main body of the image display apparatus 50 is placed.

  The power supply block 67 is a power supply for supplying power to the image display device 50, and converts an AC power supply via a power supply cord into a DC power supply of a predetermined voltage and supplies it. Note that the power supply block 67 may supply DC power of a predetermined voltage from, for example, various secondary batteries or dry batteries.

  The human body recognition sensor 56 also detects, for example, that a person (or an object) has come within a certain range with respect to the image display device 50 and outputs a detection signal thereof. Specific examples of the human body recognition sensor 56 include, for example, an infrared sensor that senses infrared rays generated from the human body, an ultrasonic sensor that generates ultrasonic waves and senses the approach of a person or an object based on the reflected waves, laser light, or LED (Light Emitting Diode) Various recognition sensors such as an optical sensor that generates light or the like and senses the approach of a person or an object by its reflected light can be considered.

  The power supply switch 68 is provided between the power supply block 67 and the main body of the image display device 50, and displays an image of the power supply from the power supply block 67 in response to a detection signal from the human body recognition sensor 56. The supply to the main body of the device 50 is turned on / off. That is, the power supply switch 68 supplies the power from the power block 67 to the main body of the image display device 50 only when the human body recognition sensor 56 comes in particular within a certain range with respect to the image display device 50. On the other hand, when a person is not within a certain range with respect to the image display device 50, the power from the power block 67 is not supplied to the main body of the image display device 50. Display is not performed (when there is a low possibility that a person is not near and watching the display image), and the power consumption of the digital image display device 1 is reduced to obtain an energy saving effect. ing.

  The optical sensor 55 is a sensor for detecting the brightness around the image display device 50, and sends the light detection output to the display unit brightness adjustment unit 69.

  The display unit brightness adjustment unit 69 is an adjustment unit for adjusting the brightness of the display unit 52. For example, the display unit 52 is turned on / off according to the light detection output from the light sensor 55. . That is, the display unit brightness adjustment unit 69 lights the display unit 52 when the light sensor 55 detects that the light amount is greater than a certain value or the light amount is less than a certain value. The reason why the display unit 52 is turned on when the above-mentioned certain amount of light is detected is as follows. For example, when there is a certain amount of light, such as in the daytime or when there is strong illumination light, This is because there is a high possibility of being active and the possibility that someone will view the display on the display unit 52 is high. Therefore, the display unit 52 is turned on when a certain amount of light is detected. The reason why the display unit 52 is turned on when the amount of light is below a certain level is that it is difficult to see the display on the display unit 52 in a dark environment such as at night or in a weak illumination state. The part 52 is turned on.

  Further, the display unit brightness adjustment unit 69 can be a variable adjustment unit for adjusting the display brightness on the display unit 52 in accordance with the light detection output from the optical sensor 55. That is, the brightness of the display on the display unit 52 is brighter in a bright environment such as daytime, and conversely slightly darker in a relatively dark environment such as at night or in the evening (not too bright). In this case, the display brightness adjustment section 69 in this case makes the display brightness of the display section 52 brighter when the light sensor 55 detects a certain amount of light (for example, light during the daytime). On the contrary, when the light amount detected by the optical sensor 55 is below a certain level (for example, light amount at night, evening, etc.), the display brightness of the display unit 52 is adjusted to be dark.

  The operation unit 57 includes operation buttons for the user to operate the operation of the image display device 50. For example, when the image processing block 65 displays various operation menu items on the display unit 52, the user can control the operation of the image display device 50 by selecting one of the menu items with the operation unit 57. Manipulate. Note that examples of operation items listed as operation menu items include various functions such as turning on / off (ON / OFF) the functions of the human body recognition sensor 56 and the optical sensor 55, slide display of a digital image (slide show), and fade display. The thing concerning a display method can be considered.

  The digital image data stored in the built-in memory 63 can be printed by a so-called printer or the like. In this case, the digital image data stored in the built-in memory 63 is communicated with a printer compatible with infrared communication via, for example, the infrared element 54 and printed out, and is communicated with a printer compatible with a serial cable via the socket 58. Print out.

  As described above, for example, the image display device 1 can be provided with a decorative function by including a case having a shape like a fresh photograph of a silver salt photograph. Since the image is supplied from an external recording medium, it is possible to easily replace the display image without taking time to replace the photograph as in the case of a silver salt photograph.

  Next, a communication mode between the image display device 50, various external devices, and an external recording medium will be described with reference to FIG.

  In FIG. 17, the image display device 50 can be connected to a digital still camera 72, a personal computer 73, a film scanner 75, a printer 74, and the like as external devices. Data communication between the external device and the image display device 50 is performed via the infrared element 54 and the socket 58 for a serial cable. The image display device 50 can be loaded with the memory card 71 as an external recording medium. The memory card 71 is attached to the socket 53 of the image display device 50.

  As described above, according to the image display device 50, digital video data from an external device such as a digital still camera can be captured and displayed in the built-in memory 63 of the main body without using a personal computer. In addition to the above, it is possible to provide a displayed digital image, and it is excellent in portability by pursuing a single function as compared with a personal computer.

  Further, according to the image display device 50, the socket 53 to which an external recording medium such as a memory card can be attached and detached is provided, so that a digital image recorded on the external recording medium can be displayed. By providing the socket 53, data can be transferred between a plurality of external recording media. Furthermore, for example, when a photo book of a celebrity (professional photographer, etc.) is made into a memory card as an external recording medium, a digital photo recorded on the memory card is displayed, so that a photo book of a celebrity etc. The digital image can be easily provided, and can be utilized as a reproducing apparatus for that purpose.

  Further, according to the image display device 50, since the infrared element 54 and the serial cable socket 58 are provided, infrared data communication and serial data communication can be performed. Therefore, data (digital image data) in the built-in memory 7 can be easily obtained. Can be rewritten.

  Further, according to the image display device 50, since the operation unit 57 is provided and various operation menus can be selected by the operation unit 57, several digital image display methods can be selected.

  Further, according to the image display device 50, depending on the size of the display unit, it is possible to use the interior of the case with a decorative design as shown in FIGS. 13 and 14, for example. You can enjoy it.

  According to the embodiment of the present invention as described above, the vertical direction information for displaying the image signal on the image display means is recorded on the recording medium as the display direction information, and the display direction information is read from the recording medium. Since it can be used when displaying an image, it is possible to display an image in the correct direction even if the apparatus itself is vertically or horizontally, without particularly instructing the vertical direction.

  In addition, for example, it is possible to easily view digital images without having a personal computer and display device, and it is also possible to easily view digital images provided via external recording media such as celebrity photo collections. It becomes possible to do. Furthermore, if necessary, it is possible to provide a decorative function such as a photo frame or a forehead of a silver salt photograph.

1 is a front view of an image display device according to an embodiment of the present invention. It is a perspective view from the back side of the image display device. FIG. 3 is a front view of the image display device in a state where the operation unit is fully rotated. FIG. 3 is a rear view of the image display device in a state where an operation unit is fully rotated. It is a side view of the said image display apparatus. It is a block diagram which shows the internal structure of the said image display apparatus. It is a figure which shows the state which takes out an operation part from the said image display apparatus. It is a figure for demonstrating operation | movement from taking out an operation part with the said image display apparatus, and turning on a power switch, and inserting a memory card. It is a figure which shows the state which reproduces | regenerates an image with the said image display apparatus turned sideways. It is a figure which shows the state which reproduces | regenerates an image by making the said image display apparatus vertical. It is a disassembled perspective view of the transparent cover board which comprises the said image display apparatus, a decorative board, and a display main-body part. It is an external appearance perspective view of the type of image display apparatus which stores an operation part by sliding. It is a perspective view from the front side of the image display apparatus used as other embodiments. It is a perspective view from the back side of the image display apparatus shown in the said FIG. It is a block diagram which shows the internal structure of the image display apparatus shown in the said FIG.13 and FIG.14. It is a figure for demonstrating the determination operation | movement of the display direction of the display image on the display part of the image display apparatus shown in the said FIG.13 and FIG.14. It is a figure for demonstrating the connection state between the image display apparatus shown in the said FIG.13 and FIG.14, an external apparatus, and an external recording medium.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Image display apparatus, 2 Transparent cover board, 3 Decoration board, 4 Display part, 5 Human body recognition sensor, 7 Display main-body part, 10 Operation part, 16 Rotate button

Claims (6)

A recognition means for recognizing the approach of the human body,
Image signal processing means for generating image signals by performing predetermined image signal processing on image data from a recording medium;
Image display means for displaying an image signal from the image signal processing means;
An image display apparatus comprising: control means for controlling power supply to the image display means on based on the approach of the human body. Light detection means for detecting the amount of ambient light;
The image display apparatus according to claim 1, further comprising an adjustment unit that adjusts an operation of the image display unit based on a detection output of the light detection unit.   A time setting unit for setting a time for switching the display state of the image display unit, and the control unit continues the display state of the image display unit for a time set by the time setting unit. The image display device according to claim 1. A mounting portion to which an external recording medium is mounted;
The image display device according to claim 1, further comprising: a built-in memory in which image data is recorded.   The image display device according to claim 4, wherein a plurality of the mounting portions are provided, and data communication is possible between each external recording medium.   5. The image display device according to claim 4, further comprising a wireless communication unit to which image data from an external device is supplied, wherein the image data supplied from the wireless communication unit is recorded in the built-in memory. .

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