JP2010033135A - Image display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image display device configured to display the image of button arrangement corresponding to an operation button on a display screen for improving operability. <P>SOLUTION: An image display device includes: a display means installed on a front side for displaying image data; an operation means installed at the back side, and configured of a plurality of operation buttons capable of various operations corresponding to the image data; and a display control means for controlling the display means to display the image of button arrangement corresponding to the operation button of the operation means by superimposing it on the image data. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an image display device that displays digital image data, and more particularly to an image display device in which display means is provided on the front side and operation means is provided on the back side.

  In recent years, digital still images taken with a digital camera or mobile phone can be taken from a memory card and displayed as a photo frame, or multiple images can be switched and displayed using the slideshow function, making it easy to take digital photos on a daily basis. Digital photo frames that can be enjoyed for a while are beginning to spread.

A conventional example of such a digital photo frame is described in, for example, the following Patent Document 1 (Japanese Patent Laid-Open No. 2006-65031). The image display frame described in Patent Document 1 includes an operation unit on the back of the back cover and a memory card throttle on a side surface (thickness portion) of the back cover. The operation unit includes a power button, a switching button, and an operation key. Etc. are arranged on the back of the case back. By providing the operation unit on the back cover, the image processing unit, internal memory, rigid board, flexible board, etc. can be housed inside the back cover, so that the frame can be made thin and uniform in thickness. Yes.
JP 2006-65031 A (paragraph [0019], FIG. 5)

  By the way, unlike the conventional digital photo frame, the operation key cannot be provided on the display surface due to restrictions on the mechanical structure or design, and the operation key must be provided on the side surface opposite to the display surface or on the opposite side. It may not be possible. For this reason, since the displayed contents cannot be confirmed at the same time as the operation key, there is a possibility that a key operation not desired by the user is performed. In particular, when the operation key is behind the display surface, there is a problem that the key operation is uncertain and the operability is very poor.

  The inventor of the present application has made various examinations to solve the above-described problems, and as a result, a button layout image corresponding to the operation button (key layout diagram) is displayed on the display screen. The inventors have conceived that the above problems can be solved if the button operation is performed by blind touch while looking at the image of the arrangement, and the present invention has been completed.

  That is, the present invention aims to solve the above-mentioned problems, and an image display device having a configuration for displaying an image of button arrangement corresponding to the operation button on the display screen in order to improve operability. It is intended to provide.

In order to solve the above problems, the invention according to claim 1 of the present application is provided with display means (for example, corresponding to the display unit 11 in the following embodiment) provided on the front side and capable of displaying image data. An image display device provided with operation means (for example, corresponding to the operation unit 12 in the following embodiment) provided on the back side and including a plurality of operation buttons capable of performing various operations on the image data. It has display control means (for example, it corresponds to control part 19 in the following example) which controls so that the image of button arrangement corresponding to the operation button of the operation means may be superimposed on the image data, and displayed on the display means. It is characterized by.

  Further, the invention according to claim 2 of the present application is the image display device according to claim 1, wherein the display control means is an operation provided on the back side when the button arrangement image is displayed on the display means. Control is performed so that the buttons are displayed as operation button images having the same size at the same position as seen from the front side.

  The invention according to claim 3 of the present application is the image display device according to claim 1 or 2, wherein the display control means is configured to display each operation button when displaying the button arrangement image on the display means. Control is performed to display the contents of the button function corresponding to.

  According to a fourth aspect of the present invention, in the image display device according to any one of the first to third aspects, detection means for detecting whether the user touches the operation button or presses the operation button. The display control means controls to display an image of the button arrangement on the display means when the detection means detects that any of the operation buttons is touched or pressed by the user. It is characterized by.

  The invention according to claim 5 of the present application is the image display device according to claim 4, wherein the display control means further detects that any of the operation buttons is touched by the user by the detection means. The button arrangement image corresponding to the operation button is controlled to be displayed from the initial display state in a first display mode different from the initial state.

  The invention according to claim 6 of the present application is the image display device according to claim 5, wherein the display control means further detects that the operation button is pressed by the user by the detection means. Control is performed so that an image of the button arrangement corresponding to the operation button is displayed in the second display mode from the first display state.

In the invention according to claim 1, the image display device controls to display an image of a button arrangement corresponding to the operation button of the operation means provided on the back side so as to be superimposed on the image data displayed on the display means.
According to such a configuration, since an image of the button arrangement corresponding to the operation button is displayed on the display means, it is possible to perform the button operation by blind touch while looking at the image of the button arrangement displayed on the display means. The operability for the user is improved.

  Further, in the invention according to claim 2, in the image display device according to claim 1, when the image of the button arrangement is displayed on the display means, the operation button provided on the back side is displayed from the front side. The operation button image of the same size is displayed at the same position as seen through the watermark.

  According to such a configuration, since the image of the button arrangement corresponding to the operation button is displayed on the display unit on the front side corresponding to the position of the operation button provided on the back side, the button displayed on the display unit Since the button operation can be performed by blind touch while looking at the image of the arrangement, the operability for the user is improved.

  According to a third aspect of the invention, in the image display device according to the first or second aspect, the button function corresponding to each operation button when displaying the image of the button arrangement on the display means. Display the contents of.

  According to such a configuration, since the contents of the button function corresponding to the operation button are displayed on the display means, it is possible to perform the button operation while grasping the contents of the button operation, so that the operability for the user is improved. To do.

  According to a fourth aspect of the present invention, in the image display device according to any one of the first to third aspects of the present invention, detection for detecting whether the user has touched the operation button or pressed the operation button. When it is detected by the means that any one of the operation buttons is touched or pressed by the user, the button arrangement image is displayed on the display means.

  According to such a configuration, when the user starts the button operation, an image of the button arrangement corresponding to the operation button is displayed on the display unit. Therefore, the user can perform a blind touch while viewing the image of the button arrangement displayed on the display unit. Since the button operation can be performed, the operability for the user is improved.

  In the invention according to claim 5, in the image display device according to claim 4, when it is detected by the detection means that any one of the operation buttons is touched by the user, the operation button is displayed. The corresponding button arrangement image is displayed from the initial display state in a first display mode different from the initial state.

  According to such a configuration, since the button image that the user wants to perform the button operation is displayed on the display unit in a different display mode, the user tries to operate while viewing the image of the button arrangement displayed on the display unit. Since the button can be visually recognized, the operability for the user is improved.

  Further, in the invention according to claim 6, in the image display device according to claim 5, when the detection unit further detects that the operation button is pressed by the user, the operation button corresponding to the operation button is selected. The button layout image is displayed in the second display mode from the first display state.

  According to such a configuration, since the button image operated by the user is displayed on the display unit in a different display mode, the button operated by the user can be visually recognized while viewing the image of the button arrangement displayed on the display unit. Therefore, the operability for the user is improved.

  Hereinafter, specific examples of the present invention will be described in detail with reference to examples and drawings. However, the embodiments shown below exemplify a digital photo frame for embodying the technical idea of the present invention, and are not intended to identify the present invention as this digital photo frame. The present invention can be equally applied to the image display devices of other embodiments included in the claims.

  1 is a perspective view showing an example of a digital photo frame according to an embodiment of the present invention, FIG. 2 is a rear view of the digital photo frame in FIG. 1, and FIG. 3 is a diagram of the digital photo frame according to the embodiment of the present invention. It is a block diagram which shows a structure.

  As shown in FIG. 1, the digital photo frame 10 according to the present embodiment includes a display unit 11 provided on the front surface of a rectangular flat housing and a stand 20 provided on the back center of the housing. . A power switch 21 is provided at the lower corner of the front surface of the housing.

  As shown in FIG. 2, on the back of the digital photo frame 10, in addition to a stand 20 that can be vertically / horizontally adjusted, stereo speakers 22-1 and 22-2 on the upper left and right sides, and below A DC power terminal 23, an SD card / memory stick slot 24, and a USB memory terminal 25 are provided on the right side, a volume dial 26 and a headphone terminal 27 are provided on the lower left side, and an operation unit 12 is provided on the left side of the center. In this embodiment, the power switch 21 is provided on the front side of the digital photo frame 10, but may be provided on the operation unit 12 on the back side.

  Further, as shown in FIG. 3, the digital photo frame 10 includes a display unit 11, an operation unit 12, a built-in memory 13, an external memory interface 14, a photo sensor 15, a power control unit 16, a data communication module 17, and an audio output unit 18. The control unit 19 and the like are provided. The display unit 11 corresponds to the display unit of the present invention, the operation unit 12 corresponds to the operation unit of the present invention, and the control unit 19 corresponds to the display control unit of the present invention.

  The display unit 11 includes an LCD module 11-1 configured by a liquid crystal display provided on the front surface side of the digital photo frame 10, and an LED 11-2 and an LED backlight controller 11-3 provided on the back surface thereof. Under the control of the control unit 19, the digital image data (for example, JPEG file) read from the memory card or the like is reproduced and displayed on the LCD module 11-1, and in the present invention, the LED is displayed by the control unit 19 as described later. By controlling the backlight controller 11-3, an image of the button arrangement corresponding to the operation buttons of the operation unit 12 is superimposed and displayed by the LED 11-2.

  The operation unit 12 includes a plurality of operation buttons 12-1 provided on the back side of the digital photo frame 10, and a sensor 12-2 for detecting that the user has touched these operation buttons. . Here, as a sensor for detecting that the user has touched these operation buttons, for example, a capacitive or pressure-sensitive touch sensor can be used.

  Specifically, as shown in FIG. 2, the plurality of operation buttons are a menu button for displaying the menu screen on the display unit 11, a screen erasing button for stopping the slide show reproduction, and returning to the normal slide show reproduction. Next button for selecting a setting item or playing back the next image data for switching the image data, Previous for selecting the setting item or playing back the previous image data Select button, rotate button to select setting item or rotate image data, brightness button to select setting item or adjust brightness of display unit 11, pause slide show playback or select It consists of a decision button and the like for confirming the setting.

  The built-in memory 13 stores music data (SDRAM 13-1, which is a work memory in which data that needs to be temporarily stored by the control unit 19 described later is stored, or a memory card ( For example, it is composed of a NAND flash memory 13-2 including a user area in which an MP3 format music file is stored. As described later, the music data may be obtained by copying from a portable storage medium such as an SD memory card, or may be obtained by downloading from a predetermined server via a WLAN.

  The external memory interface 14 includes a slot 24 for inserting an SD memory card or a memory stick, and an SD adapter 14-1 for reading / writing the inserted memory card, an MS adapter 14-2 for reading / writing the inserted memory stick, A USB connector 14-3 having a port 25 for inserting a USB memory is used.

  The photo sensor 15 is for detecting ambient brightness in order to automatically adjust the brightness and brightness of the display unit 11, and the detected control signal is output to the control unit 19. The photo sensor 15 is more preferably provided on the front side of the digital photo frame 10.

  The power control unit 16 supplies power to each unit in the digital photo frame 10. The supplied power may be obtained from an external power supply through a power adapter connected to the power supply terminal 23, or may be obtained from a charging place (not shown) provided in the digital photo frame 10. Also good.

  The data communication module 17 includes a WLAN module 17-1 that transmits and receives data by wireless communication, an SIR (Serial IrDA) module 17-2 that performs short-range data communication using infrared rays, and the like.

  The audio output unit 18 includes a D / A converter (DAC), an amplifier, speakers 22-1 and 22-2, etc., for reproducing and outputting music data read from a memory card or the like. Furthermore, as shown in FIG. 3, the audio output unit 18 includes a volume dial 26 for adjusting the volume and a headphone terminal 27 for connecting headphones.

  The control unit 19 includes a microprocessor as a main component, generates various clock pulses as in a general computer device, and controls the operation of each unit based on a control program stored in the NAND flash memory 13-2. . The SDRAM 13-1 stores data that needs to be temporarily stored during program execution.

  In addition, the control unit 19 reads a JPEG format image file (JPEG file) recorded as image data on an SD memory card or a memory stick inserted into the slot 24 in response to an operation input from the operation unit 12, using a NAND flash memory. The image data such as an SD memory card or image data stored in the NAND flash memory 13-2 is displayed on the display unit 11 as a slide show.

  Further, the control unit 19 reads an MP3 format music file (MP3 file) recorded as music data on an SD memory card or a memory stick inserted into the slot 24 in accordance with an operation input from the operation unit 12. The data is copied to the user area 13-2 and stored, or music data such as an SD memory card or music data stored in the NAND flash memory 13-2 is reproduced and output from the audio output unit 18.

  Here, when performing an operation input from the operation unit 12, the control unit 19 according to the present embodiment attempts to input an operation by the sensor 12-2 when the user touches one of the operation buttons 12-1. Since the state is detected, the LED backlight controller 11-3 displays the image of the button arrangement corresponding to the operation button of the operation unit 12 and the content of the button function corresponding to each operation button by the LED 11-2. A control signal is output. Here, the image of the button arrangement corresponding to the operation buttons is provided on the back side when the operation buttons of the operation unit 12 are displayed in the same size at the same position when viewed through the front side of the digital photo frame 10. This is preferable because it is not necessary to visually confirm the position of the operation button of the operation unit 12 and the button can be operated by blind touch.

  Further, when the user touches a desired operation button while viewing the button layout image, the control unit 19 detects that the user has selected the desired operation button by the sensor 12-2. A control signal is output to the LED backlight controller 11-3 so that an image of the button arrangement corresponding to the selected operation button is displayed in, for example, green different from the image of the other button arrangement.

  When the control unit 19 presses the operation button corresponding to the button layout image displayed in green, the sensor 12-2 detects that the user has confirmed the operation button. A control signal is output to the LED backlight controller 11-3 so that an image of the button arrangement corresponding to the determined operation button is displayed in, for example, a red color different from the image of the other button arrangement. At the same time, control instructed by the pressed operation button, for example, processing such as pause of slide show reproduction, image switching or rotation, is performed.

  FIG. 4 is a diagram showing an example of a display screen when image data according to an embodiment of the present invention is reproduced. FIG. 5 is an example of a display screen when an image of button arrangement according to the embodiment of the present invention is displayed. FIG. 6 is a diagram showing another example of the display screen when the button layout image according to the embodiment of the present invention is displayed.

  As shown in FIG. 4, the display unit 11 of the digital photo frame 10 contains image data (JPEG file) recorded on an SD memory card or a memory stick, or image data stored in the NAND flash memory 13-2. It is read out and reproduced and displayed on the display unit 11.

  Then, when the user touches one of the operation buttons 12-1 of the operation unit 12 provided on the back surface of the digital photo frame 10 in the display state shown in FIG. 4, as shown in FIG. A button arrangement image 28 corresponding to the operation button of the operation unit 12 is displayed superimposed on the image data displayed in FIG. At this time, the button arrangement image 28 is displayed in the same size at the same position when the operation button of the operation unit 12 is seen through from the front side of the digital photo frame 10.

  When the user touches a desired operation button (here, a determination button) from the operation unit 12 provided on the back surface of the digital photo frame 10 in the display state shown in FIG. 5A, FIG. As shown in FIG. 5, only the image of the button arrangement corresponding to the operation button is displayed in, for example, green (in FIG. 5B, a hatched pattern), and when the operation button is further pressed, As shown by C), only the image of the button arrangement corresponding to the operation button is displayed, for example, in red (lattice pattern in FIG. 5C).

  As shown in FIG. 6, in addition to the button layout image 28 corresponding to the operation buttons of the operation unit 12 superimposed on the image data displayed on the display unit 11, the button functions corresponding to the operation buttons are displayed. Displaying the contents 29 is more preferable because the user can perform the button operation while grasping the contents of the button operation.

  Next, a display control method for a digital photo frame according to the present embodiment will be described.

  FIG. 7 is a flowchart showing the operation of the digital photo frame according to the embodiment of the present invention. Note that the processing shown in FIG. 7 is realized by the control unit 19 executing a control program stored in the NAND flash memory 13-2.

  First, in step S701, when the user instructs the digital photo frame 10 to turn on the power by pressing the power switch 21, the control unit 19 controls the power control unit 16 to supply power to each unit. .

  In step S <b> 702, when image data is stored in the NAND flash memory 13-2 or when an SD memory card or a memory stick is inserted into the slot 24, the control unit 19 performs the NAND flash memory 13. -2 and the SD memory card are sequentially read out to perform slide show reproduction and display on the display unit 11. In step S702, an image may not be displayed on the display unit 11.

  In the process of step S703, the control unit 19 determines whether or not there is an instruction to turn off the power to the digital photo frame 10 from the user. If there is an instruction to turn off the power, the process ends. If there is no instruction, the process proceeds to step S704.

  In the process of step S704, the control unit 19 determines whether or not the user has touched any operation button of the operation unit 12 provided on the back surface of the digital photo frame 10 based on the detection result of the sensor 12-2. If it is detected that the user has touched the operation button, the process proceeds to step S705. On the other hand, if it is not detected that the user has touched the operation button, the process returns to step S703.

  In the process of step S705, the control unit 19 controls the LED backlight controller 11-3 so that the button arrangement corresponding to the operation buttons of the operation unit 12 is superimposed on the image data displayed on the display unit 11. The image 28 is displayed, and in step S706, the timer starts counting.

  In step S707, the control unit 19 determines based on the detection result of the sensor 12-2 whether or not the user has touched a specific operation button desired by the user, for example, a determination button for pausing slide show reproduction. If it is not detected that the user has touched the operation button, the process proceeds to step S708. If it is detected that the user has touched the operation button, the process proceeds to step S709.

  In the process of step S709, the control unit 19 clears the timer that has been counting halfway, starts counting again from the beginning, and controls the LED backlight controller 11-3 in the next step S710, The image of the button arrangement corresponding to the selected operation button (here, the image of the determination button) is displayed in, for example, green different from the image of the other button arrangement.

  On the other hand, in the process of step S708, the control unit 19 determines whether or not the timer has counted up to a predetermined time (for example, 30 seconds), and returns to the process of step S707 until the timer counts up to the predetermined time. When counting to a predetermined time, the process proceeds to step S717.

  Next, in step S711, the control unit 19 determines whether or not the user has pressed a specific operation button (here, a determination button) desired based on the detection result of the sensor 12-2. If it is not detected that the operation button has been pressed, the process proceeds to step S712. If it is detected that the user has pressed the operation button, the process proceeds to step S713.

  In the process of step S713, the control unit 19 clears the timer that has been counting halfway, starts counting again from the beginning, and controls the LED backlight controller 11-3 in the next step S714, thereby The button arrangement image (here, the determination button image) corresponding to the pressed operation button is displayed in, for example, red, which is different from other button arrangement images.

  On the other hand, in the process of step S712, the control unit 19 determines whether or not the timer has counted up to a predetermined time (for example, 30 seconds), and returns to the process of step S711 until the timer has counted up to the predetermined time. When counting to a predetermined time, the process proceeds to step S717.

  Next, in step S715, the control unit 19 executes the control (here, the slide show playback is paused) instructed by the pressed operation button, and in the next step S716, the control unit 19 has a timer set in advance. It is determined whether or not the time has been counted (for example, 30 seconds), and the process returns to step S707 until the timer counts to a predetermined time. When the timer counts to the predetermined time, the process proceeds to step S717.

  In step S717, the control unit 19 controls the LED backlight controller 11-3 to erase the button arrangement image 28 corresponding to the displayed operation button of the operation unit 12, and in step S703. Return to the process.

  In the above embodiment, when a user touches or presses a desired operation button, the button layout image corresponding to the operation button is displayed in a different display mode. However, the example of displaying in red when pressed is described, but the display mode is not limited to this. For example, when touched, the button layout image corresponding to the operation button is blinked and pressed In some cases, the lighting may be controlled to be fixed.

  In the above-described embodiment, the button layout image is displayed in the same size at the same position when the operation button of the operation unit 12 is viewed through the digital photo frame 10 from the front side. However, the present invention is not limited to this. It may be an image showing only the button arrangement corresponding to 12 operation buttons. FIG. 8 is a diagram illustrating another example of the display screen when the button layout image according to the embodiment of the present invention is displayed.

  That is, as shown in FIG. 8, an arbitrary position in the display screen of the display unit 11, for example, a size smaller than the operation button of the operation unit 12 at the lower right corner of the display screen, The corresponding button arrangement image 30 is displayed together with the contents of the button function corresponding to each operation button. When the user touches or presses the desired operation button, the image of the button arrangement corresponding to the operation button may be displayed in different display modes.

  As described above, according to the image display device of the present invention, the image of the button arrangement corresponding to the operation button provided on the back side of the display unit is displayed on the display unit, and thus displayed on the display unit. Since the button operation can be performed by blind touch while looking at the image of the button arrangement, it is possible to provide an image display device with excellent operability for the user.

  In addition, since the button image of the button operation by the user is displayed on the display means in a different display mode, the button operated by the user can be viewed while looking at the image of the button arrangement displayed on the display means. Since the button operation can be performed while grasping the content of the button operation, the convenience for the user is further improved.

It is a perspective view which shows an example of the digital photo frame which concerns on the Example of this invention. It is a rear view of the digital photo frame in FIG. It is a block diagram which shows the structure of the digital photo frame based on the Example of this invention. It is a figure which shows an example of the display screen when image data which concerns on the Example of this invention is reproduced | regenerated. It is a figure which shows an example of the display screen when the image of the button arrangement based on the Example of this invention is displayed. It is a figure which shows the other example of a display screen when the image of the button arrangement | positioning which concerns on the Example of this invention is displayed. 3 is a flowchart illustrating an operation of a digital photo frame according to an embodiment of the present invention. It is a figure which shows the other example of a display screen when the image of the button arrangement | positioning which concerns on the Example of this invention is displayed.

Explanation of symbols

10 .... Digital photo frame 11 .... Display unit 11-1 ... LCD module 11-2 ... LED
11-3... LED backlight controller 12... Operation unit 12-1 ... operation button 12-2 ... sensor 13 ... built-in memory 13-1 ... SDRAM
13-2 ... NAND type flash memory 14 ... External memory interface 14-1 ... SD adapter 14-2 ... MS adapter 14-3 ... USB connector 15 ... Photo sensor 16 Power source control unit 17 Data communication module 17-1 WLAN module 17-2 SIR module 18 Voice output unit 19 Control unit

Claims (6)

An image display device comprising: display means provided on the front side and capable of displaying image data; and operation means provided on the back side and comprising a plurality of operation buttons capable of various operations on the image data. Because
An image display apparatus comprising: a display control unit that controls to display an image of a button arrangement corresponding to an operation button of the operation unit on the display unit so as to overlap the image data. When the display control means displays the button arrangement image on the display means, the operation buttons provided on the back side are displayed with the same size operation button images at the same position as seen through the front side. The image display device according to claim 1, wherein the image display device is controlled as follows. The display control means controls to display the contents of the button function corresponding to each operation button when the button arrangement image is displayed on the display means. The image display device described in 1. A detection means for detecting whether the user touches the operation button or presses the operation button;
The display control means controls to display an image of the button arrangement on the display means when the detection means detects that any of the operation buttons is touched or pressed by a user. The image display device according to any one of claims 1 to 3. When the display control unit further detects that any one of the operation buttons is touched by the user, the display control unit changes the image of the button arrangement corresponding to the operation button from the initial display state to the initial state. The image display device according to claim 4, wherein the display is controlled to display in the first display mode. When the detection unit further detects that the operation button has been pressed by the user, the display control unit displays the image of the button arrangement corresponding to the operation button from the first display state to the second display. The image display apparatus according to claim 5, wherein the display is controlled so as to display in an aspect.

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