JP6331869B2 - Display device and electronic device including the same - Google Patents

Description

  The present invention relates to a display device and an electronic apparatus including the display device.

  An electronic device such as a digital audio player is provided with a display unit. Various information such as a counter indicating the current time, the track number of the CD being reproduced, or the current reproduction position is displayed on the display unit. The display unit provided in the electronic device is an electronic display unit that performs display by an electronic method, and includes, for example, a liquid crystal display. The electronic display unit has an advantage that the display content can be easily changed. For example, the display content can be changed according to the operation mode of the device. Because of these advantages, electronic display units are widely used in electronic devices.

  Generally, characters and numbers are displayed on the electronic display unit. For example, in the time display, numbers indicating hours and minutes are generally simply displayed. However, it has also been proposed to perform analog display on the electronic display unit. For example, it has been proposed to display the time in an analog manner by sequentially lighting each segment provided on the peripheral edge of the display surface in the electronic display unit (see Patent Documents 1 to 3).

Japanese Utility Model Publication No. 50-99977 JP 56-163482 A JP 58-140670 A

  When a user performs an operation on an electronic device having an electronic display unit, it is required to obtain the same operation feeling as before (before display by the electronic display unit). For example, when volume adjustment is performed in a digital audio player, when the volume controller is operated, the set volume value is only displayed as a number on the display unit, but an index marker is displayed on the volume controller as in the past. Therefore, there is a demand for an analog operation feeling that the position of the index marker changes when the volume controller is turned. In this specification, “analog operation feeling” means a pointer provided on the display unit when the index marker is moved in the above-described volume controller or the frequency selection controller is rotated as in a conventional tuner receiver. Means an operation feeling that allows the user to feel that the operation unit or the display unit physically moves in accordance with the operation, such as moving along the scale.

  Moreover, it is generally difficult for the electronic display unit to have a wide display area. Therefore, it is required to give the user an analog operation feeling within a limited display area.

  An object of the present invention is to make use of a function of an electronic display unit that allows the display contents to be flexibly changed when a user performs an operation on an electronic device having the electronic display unit. It is to give a sense to the user.

The display device according to the present invention includes an electronic display unit and a display control unit that causes the electronic display unit to display a setting value selected from a plurality of selection candidate values. The display control unit is arranged in order. When the rotary operator for sequentially selecting the plurality of selection candidate values is not rotated, the electronic display is arranged by arranging the setting value and a plurality of selection candidate values in the vicinity of the setting value in the arrangement order in the arrangement order. The selection candidate value is erased while the rotary operation element is being rotated, and an indicator whose display position moves in the circumferential direction according to the rotation of the rotary operation element is displayed It is displayed on a display part.

  Preferably, the display control unit displays the plurality of selection candidate values on a moving path of the display position of the index.

  Preferably, the display control unit displays a scale indicating an arrangement direction of the plurality of selection candidate values arranged in order when the rotation operator is not rotated, and the setting is performed along the scale. A value and a plurality of selection candidate values near the set value are displayed.

  In addition, the present invention provides an operation unit including a rotary operator, a control unit that specifies a setting item by the rotary operator based on an operation signal from the operation unit, and a setting value to be displayed according to the setting item And an electronic device including the display device that changes a selection candidate value.

  ADVANTAGE OF THE INVENTION According to this invention, when a user operates with respect to the electronic device which has an electronic display part, analog operation is performed about the said operation, utilizing the function which the electronic display part can change display content flexibly. A feeling can be given to the user.

1 is a schematic configuration diagram of a digital audio player according to an embodiment. It is a figure which shows the example of a display of a display part while the rotary controller is operated. It is a figure which shows a mode that the display position of a pointer | guide moves. It is a figure which shows the example of a display of a display part in case the rotary controller is not operated. It is a figure which shows the change of the display of a display part according to operation of a rotary controller. It is a flowchart which shows the flow of operation | movement of a display control part.

  Hereinafter, embodiments of the present invention will be described by taking a digital audio player as an example of equipment. The embodiment described below is an example, and the present invention is not limited to the embodiment described below.

  FIG. 1 is a schematic configuration diagram of a digital audio player 10 according to the present embodiment. The digital audio player 10 is a home audio player and has a plurality of functions such as a CD playback function, a tuner function, and a playback function for audio data input from an external device. In the digital audio player 10, each unit is connected via a BUS.

  The CD reader 12 optically reads audio data from a CD. A CD generally has a plurality of tracks (songs), and reading is usually started from the first track. The track from which audio data is to be read can be specified by the user using the operation unit 22 described later. In the present embodiment, the CD reading unit 12 can accommodate one CD, but a plurality of CDs may be accommodated. In this case, the CD from which audio data is to be read is selected by the user using the operation unit 22. The read audio data is sent to the sound processing unit 18.

  The tuner unit 14 receives radio broadcasts such as AM broadcasts and FM broadcasts. The tuner unit 14 performs demodulation (detection) processing on a transmission wave having a frequency selected by the user using the operation unit 22 in the received broadcast, and acquires audio data included in the transmission wave. The acquired audio data is sent to the audio processing unit 18.

  The external input interface 16 is an interface for connecting to an external device. In the present embodiment, a USB terminal is provided as the external input interface 16, and a USB memory in which an audio file (WAV file or MP3 file) is stored as an external device is connected to the USB terminal. A plurality of audio files can be stored in the USB memory, and an audio file to be reproduced is selected by the user using the operation unit 22. The selected audio file is sent to the audio processing unit 18.

  The external input interface 16 is not limited to the USB terminal, and may be a memory card slot such as an SD card slot. Moreover, it is not restricted to what is connected by a wire, For example, a Bluetooth (trademark) adapter, a Wi-Fi adapter, etc. may be sufficient. In addition to the USB memory, the external device may be a memory card such as an SD card or a portable audio player compatible with Bluetooth.

  The audio processing unit 18 is, for example, a DSP (Digital Signal Processor), converts digital audio data sent from the CD reading unit 12, the tuner unit 14, and an external device into an analog audio signal and sends the analog audio signal to the speaker 20. The audio processing unit 18 outputs an analog audio signal with an amplitude corresponding to the volume setting set by the user via the operation unit 22.

  The speaker 20 receives the analog audio signal from the sound processing unit 18 and outputs the analog audio signal as sound.

  The operation unit 22 is for a user to send an instruction to the digital audio player 10. The operation unit 22 includes a push button group 22a including a plurality of push buttons and two rotary controllers 22b and 22c. These are provided on the front surface or the upper surface of the digital audio player 10.

  Each push button included in the push button group 22a changes the output voltage value to the control unit 24 when pressed. The push button group 22a includes a power button for turning on / off the power, a play / stop button for playing or stopping a CD or an audio file, or a digital audio player 10 such as a function (CD function, tuner function, external input function). Function buttons for switching the operation mode).

  The rotary controllers 22b and 22c are, for example, rotary encoders, and transmit a pulse wave to the control unit 24 every time the rotary controllers 22b and 22c are rotated by a predetermined angle. The rotary controllers 22b and 22c are used for various settings according to each function in addition to the volume settings. For example, in the case of a CD function, it is used to select a playback track number. When the CD reading unit 12 can store a plurality of CDs, it is also used for selecting a CD to be reproduced. In the case of a tuner function, it is used for selecting a tuner frequency. In the case of an external input function, it is used for selecting an audio file of an external device.

  One rotary controller may be used for a plurality of settings. For example, the rotary controller 22c can be used to select a playback track in the CD function and can be used to select a frequency in the tuner function. In the present embodiment, one rotary controller 22b is used for volume setting in common with each function, and the other rotary controller 22c is used in common for the other settings described above.

  The control unit 24 is, for example, a CPU or a microprocessor, and controls each unit of the digital audio player 10. In particular, the control unit 24 controls each unit of the CD reading unit 12, the tuner unit 14, the audio processing unit 18, and the external device based on a signal from the operation unit 22, as will be described below. In addition, as described below, the control unit 24 transmits information indicating the operation state of the operation unit 22 to the display control unit 26.

  The control unit 24 performs control according to the push button based on a signal from each push button included in the push button group 22a. For example, when a function button included in the push button group 22a is pressed by the user, control for switching the function of the digital audio player 10 is performed. When the control unit 24 specifies a function set by the user, the control unit 24 controls the functional block corresponding to the function. For example, when the CD function is selected, the CD reading unit 12 is controlled to perform playback, stop, track selection, and the like. Further, information indicating the specified function is transmitted to the display control unit 26.

  The control unit 24 detects the rotation direction and the rotation amount of the rotary controllers 22b and 22c, and performs control according to the rotation direction and the rotation amount. For example, when the rotary controller 22b is rotated, the audio processing unit 18 is controlled to change the amplitude of the output analog audio signal of the audio processing unit 18 by an amount corresponding to the rotation direction and the rotation amount. Further, the control unit 24 transmits information indicating the detected rotation direction and rotation amount to the display control unit 26.

  The display control unit 26 causes the display unit 30 to display information indicating the operation state of the digital audio player 10 and the like. For example, the display control unit 26 causes the display unit 30 to display the current time, the currently set volume value, and the like. In addition, the display control unit 26 receives information indicating the operation state of the operation unit 22 from the control unit 24, and changes information to be displayed on the display unit 30 according to the operation of the operation unit 22. For example, the display content of the display unit 30 is changed according to the function set by the operation of the operation unit 22. For example, in the case of a CD function, information on a CD to be played, for example, the number of tracks and the total playback time is displayed. Further, during playback of a CD, a playback track number, a counter indicating the playback position, and the like are displayed. When the CD reading unit 12 can store a plurality of CDs, a number indicating a CD to be reproduced may be displayed. In the case of a tuner function, the selected frequency is displayed. In the case of an external input function, the number of audio files included in the external device is displayed. During playback of an audio file from an external device, the number of the audio file being played is displayed.

  The display control unit 26 is a display for giving an analog operation feeling to the user when the rotary controller 22b or 22c is rotated by the user, for example, for setting a volume or selecting a playback track number. Is performed on the display unit 30. Specifically, it is not the display of a rotation index that moves on the display unit 30 according to the rotation direction or the rotation amount of the rotary controllers 22b and 22c, or the display of the vicinity of the set value rather than only the set value such as the volume. The analog value is given to the user by displaying the value together with the set value. Details of these display modes will be described later with reference to FIGS.

  The memory 28 is composed of, for example, a ROM (Read Only Memory), a RAM (Random Access Memory), or the like, and stores a program for operating each part of the digital audio player 10 or various settings of the digital audio player 10. is there.

  The display unit 30 is an electronic display unit that performs display using an electronic or optical method. As the display unit 30, a liquid crystal display, a fluorescent display tube (FL display), an organic EL display, or the like is used. The display unit 30 has a plurality of segments, and various information is displayed on the display unit 30 by the display control unit 26 turning on / off each segment.

  Hereinafter, the operation of the display control unit 26, particularly the operation for giving an analog operation feeling to the user will be described with reference to FIG. In the following, a case where the tuner function is selected will be described as an example.

  FIG. 2 is a diagram illustrating a display example of the display unit 30 while the rotary controller 22c is rotating. In the tuner function, the rotary controller 22c is used for selecting a frequency. When the rotary controller 22c is rotated, selectable frequencies are sequentially selected. For example, in the case of FM, frequencies from 76.00 MHz to 90.00 MHz are sequentially selected every 0.1 MHz. In this embodiment, when the rotary controller 22c is rotated clockwise, the selection frequency is selected in ascending order, and when it is rotated counterclockwise, the selection frequency is selected in descending order. The display control unit 26 causes the display unit 30 to display the currently selected selection frequency 40 as a numerical value.

  The display control unit 26 displays a scale 42 provided along the circumferential direction along with the selection frequency 40 and hands 44a and 44b as rotation indicators along the scale 42. The scale 42 is displayed along the circumferential direction, but its curvature may be set arbitrarily. Further, when the rotary controller 22c is rotated, it is not always necessary to display the scale 42. Each of the hands 44a and 44b is composed of two needle-like portions so that the user can easily see. The hands 44a and 44b are displayed at positions facing each other on the circumference indicated by the scale 42. The display control unit 26 moves the display positions of the hands 44a and 44b according to the rotation of the rotary controller 22c.

  FIG. 3 is a diagram showing how the display positions of the hands 44a and 44b move. As shown in FIG. 3A, when the rotary controller 22c is rotated clockwise, the display control unit 26 changes the display positions of the hands 44a and 44b so as to express the rotation of the rotary controller 22c. Move. Specifically, the pointer 44 a displayed on the left side of the scale 42 is moved upward along the scale 42, and the pointer 44 b displayed on the right side of the scale 42 is moved downward along the scale 42. That is, the hands 44a and 44b are moved in the same direction as the rotation direction of the rotary controller 22c while maintaining the facing relationship. This gives the user a sense that the hands 44a and 44b are rotating on the display unit 30 in accordance with the rotation of the rotary controller 22c.

  In this embodiment, the hands 44a and 44b are displayed and moved to give an analog sense of operation to the user. However, as long as the analog sense of operation can be given to the user, A display mode may be adopted. For example, a point or a mark may be moved instead of the hands 44a and 44b, or a plurality of lines included in the scale 42 are sequentially turned on or off according to the rotation of the rotary controller 22c. It may be.

  When the selected frequency is synchronized with the broadcast frequency, the display mode may be changed so as to notify the user of that fact. For example, the user is notified that the selected frequency is synchronized with the broadcast frequency by blinking the hands 44a and 44b and the scale 42, or changing the length and number of the hands 44a and 44b.

  As described above, since the hands 44a and 44b move in the circumferential direction according to the rotation of the rotary controller 22c, an analog operation feeling can be given to the user. In conventional tuners, bar-shaped hands are generally used to indicate the selected frequency. However, hands 44a and 44b having similar shapes are displayed and moved according to the rotation of the rotary controller 22c. Thus, it is possible to give the user a feeling similar to that of the conventional device (analog device). Further, the scale 42 is displayed and the hands 44a and 44b are moved along the scale 42, thereby giving the user an operation feeling that the hands are aligned with the scale together with the shapes of the hands 44a and 44b. Can do. Further, by displaying two pointers at opposing positions, the image of rotation is given to the user more strongly.

  Further, it is preferable to move the hands 44a and 44b in accordance with the change of the selected frequency. Specifically, when the selected frequency changes by 0.1 MHz, the hands 44 a and 44 b are also moved by one scale of the scale 42. Thereby, the change of the selection frequency 40 and the timing of movement of the hands 44a and 44b can be matched, and the operational feeling can be further improved.

  FIG. 4 is a diagram illustrating a display example of the display unit 30 when the rotary controller 22c is not operated. When the set frequency is determined, the display control unit 26 switches the display on the display unit 30 to the display shown in FIG. Specifically, the display control unit 26 switches the display of the display unit 30 when the rotation of the rotary controller 22c is not performed for a certain period of time.

  When the rotary controller 22c is not rotated, the display control unit 26 displays a set frequency 50 that is a set value selected from a plurality of frequencies. In the example shown in FIG. 4, “82.50 MHz” is displayed as the set frequency 50. Further, the display control unit 26 displays a plurality of neighboring frequencies 52 of the set frequency 50. In this example, “30”, “40”, “60”, and “70” are displayed as the neighboring frequencies 52, which are 82.30 MHz, 82.40 MHz, 82.60 MHz, and 82.60 MHz, respectively. It means 70 MHz. That is, two selectable frequencies before and after the set frequency 50 are displayed. The number of the nearby frequencies 52 to be displayed is not limited to four, and may be appropriately changed according to the display area of the display unit 30 and the like. The neighboring frequency 52 is not necessarily centered on the set frequency 50. For example, when the set frequency 50 is “82.50 MHz”, the neighboring frequencies are “60”, “70”, “80”, And “90” may be displayed. In this case, for example, the set frequency 50 is displayed at the position where the near frequency “30” is displayed in FIG. 4.

  The plurality of neighboring frequencies 52 are displayed along the outer peripheral side of the scale 42. That is, the plurality of neighboring frequencies 52 are displayed in the same area as the movement paths of the hands 44a and 44b. Therefore, when the rotation of the rotary controller 22c is not performed for a certain period of time, the display control unit 26 deletes the hands 44a and 44b and displays a plurality of neighboring frequencies 52. When the rotary controller 22c is rotated again, the near frequency 52 is deleted and the hands 44a and 44b are displayed.

  The displayed near frequency 52 may not be a frequency adjacent to the set frequency 50 in the order of selectable frequencies, and a plurality of frequencies having a certain distance from the set frequency 50 are displayed as the close frequency 52. It may be. For example, when one scale of the scale 42 means 0.1 MHz, and the vicinity frequency 52 is displayed every 5 scales, “81.50” as the vicinity frequency 52 of “82.50 MHz” that is the set frequency 50, Each numerical value of “82.00”, “83.00”, and “83.50” may be displayed (see FIG. 5A described later).

  FIG. 5 is a diagram illustrating a change in display on the display unit 30 according to the operation of the rotary controller 22c. First, as shown in FIG. 5A, it is assumed that 82.50 MHz is set as the set frequency. In this state, the numerical value of “82.50” is set as the set frequency 50, and the numerical values of “81.50”, “82.00”, “83.00”, and “83.50” are scaled as the neighborhood frequency 52. 42 is displayed.

  When the rotary controller 22c is rotated to the right in this state, the display control unit 26 deletes the nearby frequency 52 and displays the hands 44a and 44b as shown in FIG. 5B. And the numerical value which shows the selection frequency 40 is switched for every 0.1 MHz according to rotation of the rotary controller 22c. In the example of FIG. 5B, it is assumed that the rotary controller 22c is rotated and the frequency is selected from 82.60 MHz to 83.00 MHz. At this time, the display control unit 26 moves the hands 44a and 44b by one scale every time the selected frequency is switched by 0.1 MHz.

  If the rotary controller 22c is not rotated in this state and a certain time elapses, the display control unit 26 determines that 83.00 MHz is set as the set frequency. Then, as shown in FIG. 5C, the display control unit 26 deletes the hands 44 a and 44 b and displays “83.00 MHz” as the set frequency 50. Further, numerical values of “82.00”, “82.50”, “83.50”, and “84.00” are displayed along the scale 42 as the vicinity frequency 52 of the set frequency.

  As shown in FIG. 5, not only the set frequency 50 but also the nearby frequency 52 is displayed, and after the rotary controller 22c is rotated, the changed set frequency and the nearby frequency 52 changed accordingly are displayed. By operating the rotary controller 22c, it is possible to give the user a feeling as if the dial whose frequency is described in order is rotated.

  In addition, in conventional tuner devices that have performed analog display, a scale corresponding to all of the selectable frequency values is provided, and the pointer is moved along the scale. Will become larger, or the scale and numerical value display will become larger. According to the present embodiment, only a plurality of set frequencies 50 centered on the set frequency 50 among a number of selectable frequencies are displayed on the display unit 30. Therefore, the size of the display unit 30 can be reduced while giving an analog operation feeling to the user. Alternatively, the scale and the numerical value display can be enlarged while keeping the size of the display unit 30 as it is. Furthermore, since the hands 44a and 44b and the nearby frequency 52 are displayed in the same area, this also contributes to the reduction in the size of the display unit or the display and scale display.

  As described above, in the present embodiment, an analog operation sensation is provided to the user while utilizing the flexibility of the electronic display unit that can easily change the display or display various different information in the same area. It is possible to give

  In the present embodiment, frequency selection in the tuner function has been described as an example, but the present invention can also be applied to other settings. For example, the present invention can also be applied to volume value settings. In this case, when the rotary controller 22 b is rotated, the display control unit 26 displays a screen similar to that in FIG. 2 and displays the selected volume value instead of the selected frequency 40. When the setting of the volume value is completed, the same screen as in FIG. 4 is displayed, a setting volume value (for example, “−20 dB”) is displayed instead of the setting frequency 50, and a value near the setting volume value is displayed instead of the nearby frequency 52. (For example, “−22”, “−21”, “−19”, and “−18”) are displayed.

  Similarly, the present invention can be applied to selection of a playback track in a CD function, selection of a CD to be played when a plurality of CDs are stored, and selection of a playback target audio file in an external input function. is there. In this case, the display control unit 26 displays a number indicating the selected track in place of the selected frequency 40 in FIG. 2, and displays a numerical value (for example, “3”) indicating the set track in place of the set frequency 50 in FIG. Then, instead of the neighborhood frequency 52, the neighborhood numerical values (for example, “1”, “2”, “4”, and “5”) of the set track or the like are displayed.

  In the present embodiment, the scale 42 and the hands 44a and 44b are displayed along the circumferential direction set to an arbitrary curvature, but may be displayed along a zero curvature, that is, along a linear scale. Is possible. In this case, the scale 42 is displayed along the direction of the linear scale, and the display position of the pointer as an index moves linearly according to the rotation of the rotary controller.

  FIG. 6 is a flowchart showing an operation flow of the display control unit 26. The operation flow of the display control unit 26 will be described with reference to FIG.

  In step S10, the control unit 24 selects a function based on a push button operation by the user. In this example, it is assumed that the tuner function is selected. The control unit 24 notifies the display control unit 26 that the tuner function has been selected.

  In step S12, the control unit 24 determines whether or not the rotary controller 22c for selecting a frequency is operated to rotate. When not rotated, it progresses to step S20, and the display control part 26 displays the setting frequency and the vicinity frequency on the display part 30 along a scale as shown in FIG. 4 in step S20. Note that the set frequency in this case may be the frequency that was last set during the previous tuner function operation.

  If the rotary controller 22c is being rotated in step S12, the process proceeds to step S14. In step S14, the display control unit 26 displays a pointer that is a rotation index, and further moves the display position of the pointer according to the rotation (rotation direction or rotation speed) of the rotary controller 22c.

  In step S <b> 16, the control unit 24 determines whether or not a certain time has elapsed after the rotation of the rotary controller 22 c has stopped. If the rotary controller continues to rotate, the process returns to step S14, and the display control unit 26 continues to move the pointer display position. If a certain period of time has elapsed since the rotation of the rotary controller stopped, it is determined that the user has finished setting the frequency, and the process proceeds to step S18. In step S18, the display control unit 26 deletes the display of the pointer.

  In step S20, as shown in FIG. 4, the display control unit 26 displays the set frequency set by the user by the rotation operation of the rotary controller 22c and its neighboring frequencies along the scale.

  In step S22, the control unit 24 determines whether or not the rotary controller 22c for selecting the frequency is rotated. When the rotary controller 22c is rotated again, the process proceeds to step S24, and the display control unit 26 deletes the nearby frequency in step S24. And it returns to step S14 again and displays a pointer.

  The embodiment of the present invention has been described above. In this embodiment, a digital audio player has been described as an example of the device. However, the present invention is not limited to audio devices such as amplifiers, tuners, CD changers, and portable players, recording devices such as multitrack recorders or handy recorders, and other information. The present invention can also be applied to devices and communication devices.

  DESCRIPTION OF SYMBOLS 10 Digital audio player, 12 CD reading part, 14 Tuner part, 16 External input interface, 18 Sound processing part, 20 Speaker, 22 Operation part, 22a Push button group, 22b, 22c Rotary controller, 24 Control part, 26 Display control part , 28 memory, 30 display unit.

Claims (4)

An electronic display;
A display control unit for displaying a setting value selected from a plurality of selection candidate values on the electronic display unit;
The display control unit
When a rotation operator for sequentially selecting the plurality of selection candidate values arranged in order is not rotated, the selection value and a plurality of selection candidate values near the set value in the arrangement order are arranged in the arrangement order. Display them side by side on the electronic display,
While the rotary operator is being rotated, the selection candidate value is erased, and an indicator whose display position moves along the circumferential direction according to the rotation of the rotary operator is displayed on the electronic display unit. ,
A display device characterized by that. The display control unit displays the plurality of selection candidate values on a movement path of a display position of the index;
The display device according to claim 1, wherein: The display control unit displays a scale indicating an arrangement direction of the plurality of selection candidate values arranged in order when the rotation operator is not rotated, and the set value and the scale are displayed along the scale. Display multiple selection candidate values near the set value.
The display device according to claim 1, wherein the display device is a display device. An operation unit including a rotary operator;
A control unit for specifying a setting item by the rotary operator based on an operation signal from the operation unit;
The display device according to any one of claims 1 to 3, wherein a setting value to be displayed and a selection candidate value are changed according to the setting item.
An electronic device comprising:

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