JP2006337785A - Display device for operation key holding state - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a means of displaying an operation key holding state, when a display is dimmed or turned off for electronic equipment which displays the operation key holding state on the display, and dims or turns off the display when operation is not carried out for a specified time period. <P>SOLUTION: The electronic equipment which has the display 3, operation keys 2, and an operation key hold means 4 and at least dims or turns off back light 3a of the display 3 or places the display screen of the display 3 in a screen non-display state, when no operation key is operated for the specified period is provided with a light emitting element 5, which blinks or illuminates in the operation key hold state to display the operation key hold state. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electronic apparatus, and more particularly to a display device in the operation key hold state.

  2. Description of the Related Art Conventionally, some portable electronic devices are provided with an operation key hold switch that disables operation of an operation key in order to prevent an operation key that is not intended to be operated when the portable electronic device is unintentionally operated. And in the electronic device which has a display, the operation key hold state was displayed on the display.

  However, a display such as a liquid crystal display device consumes a large amount of power, and in some cases, the display is dimmed or turned off if the operation key is not operated for a predetermined period in order to prevent the battery from being consumed.

  In this case, when the display is turned off, the operation key hold state display disappears. The user may mistakenly assume that the device has failed if he / she does not know the operation key hold state or forgets to operate the key.

  The present invention has been made in view of the above points, and an object of the present invention is to display the operation key hold state on the display, and if the operation is not performed for a predetermined period, the display is dimmed or turned off, or the screen is not displayed. An object of the present invention is to provide means for displaying an operation key hold state when a display is dimmed or extinguished or the screen is not displayed in an electronic device to be displayed.

  The operation key hold state display device of the present invention has a display, an operation key, and an operation key hold means, displays the operation state on the display, and reduces the backlight of the display when the operation key is not operated for a predetermined period. An electronic device that performs at least one of light, turning off the backlight of the display, and hiding the display screen of the display. The light-emitting element is provided, and the light-emitting element blinks in the operation key hold state or It is configured to light up and display the operation key hold state.

  In the display device in the operation key hold state, the light emitting element blinks or is lit when the display starts at least one of the dimming, the extinction, and the screen non-display. is there.

  Further, in the display device in each operation key hold state, it is possible to display other states other than the operation key hold state by the light emitting element, and in the operation key hold state and other states other than the operation key hold state, The blinking patterns of the light emitting elements are different.

  The operation key hold state display device of the present invention includes a display, an operation key, and an operation key hold means, displays the operation state on the display, and operates the operation key for a first predetermined period. The backlight is dimmed or extinguished, and after the dimming or extinguishing, if the operation key is not operated for a second predetermined period longer than the first predetermined period, the display screen of the display is not operated for the second predetermined period Is an electronic device that does not display the screen, and is provided with a light emitting element, and in the operation key hold state, the light emitting element blinks or lights up to display the operation key hold state.

  In the display device in the operation key hold state, the light emitting element blinks or lights up when the backlight of the display is dimmed or turned off, or when the display screen of the display is hidden. Is to be executed.

  Further, in the display device in each operation key hold state, it is possible to display other states other than the operation key hold state by the light emitting element, and in the operation key hold state and other states other than the operation key hold state, The blinking patterns of the light emitting elements are different.

  According to the display device in the operation key hold state of the present invention, even if the display of the electronic device is dimmed or turned off, the operation key hold state is displayed by a light emitting element such as an LED. Will not be mistaken for failure.

  In addition, since the LEDs and the like are blinking, it can be seen that the power supply is in an on state, and the power supply is not forgotten. Furthermore, the operation key hold state is displayed with a low-power consumption component such as an LED, and in an electronic device using the battery, the battery is not consumed so that the usable period of the battery is not displayed with the LED. It can be a time that does not change substantially.

  The best mode for carrying out the present invention will be described below with reference to examples. FIG. 1 is an external view showing a portable hard disk audio apparatus which is Embodiment 1 of the present invention. A liquid crystal display device 3, an operation key group 2 including a play key 2a and a red LED 5 are arranged on the surface of the portable hard disk audio device 1 of the embodiment shown in FIG. 1, and a slide knob of the hold switch 4 is arranged on the side surface. ing.

  By sliding the slide knob of the hold switch 4 in the direction of the arrow, the hold state in which the operation of the operation key group 2 is invalidated or the hold state is released. If the liquid crystal display device 3 is in the hold state when the light is turned off, the red LED 5 blinks in a specific blink pattern.

  FIG. 2 shows the configuration of the portable hard disk audio device of the first embodiment. A control device 6 including a microcomputer shown in FIG. 2 uses a RAM 9 as a working memory in accordance with a program recorded in a built-in ROM, an input from the operation key group 2 and the hold switch 4, and a hard disk drive 7, a liquid crystal display device 3 and The backlight 3a that illuminates the liquid crystal display device 3 is controlled.

  The hard disk drive 7 is controlled by the control device 6 to reproduce the hard disk and output an audio signal or a still image digital signal to the control device 6. The digital audio signal input to the control device 6 is processed by the control device 6 and then output to the D / A converter 8.

  The D / A converter 8 converts the input audio digital signal into an analog signal and outputs the analog signal to an amplifier (not shown). The amplifier amplifies the audio analog signal and drives a headphone (not shown).

  The digital signal of the still image input to the control device 6 is processed by the control device 6, becomes a signal for controlling the liquid crystal display device 3, and is displayed on the liquid crystal display device 3 as a still image. In addition to the still image, the control device 6 displays characters or symbols indicating the hold state on the liquid crystal display device 3, and controls the light emission of the red LED.

  FIG. 3 is a flowchart showing a main routine of the control device 6 of the portable hard disk audio device of the embodiment. The operation of the control device 6 according to the first embodiment will be described with reference to FIG. The control device 6 is driven by a battery (not shown). When a power switch (not shown) is turned off, step S1 is always executed to determine whether the power is turned on.

  If it is determined in step S1 that the power supply has been turned on, the process proceeds to step S2, the count of the timer incorporated in the control device 6 is set to 0, and the process proceeds to step S3. In step S3, a still image or the like to be displayed is displayed on the liquid crystal display device 3, and the process proceeds to step S4.

  In step S4, it is determined whether or not the hold state is set based on a signal from the hold switch 4. If the hold state is set, a character or symbol indicating the hold state is displayed on the liquid crystal display device 3 so as to be superimposed on a still image or the like. Migrate to

  In step S5, it is determined whether or not an operation signal is input from the operation key group 2. If an operation signal is input, the instructed operation is executed, and the process proceeds to step S2. If no operation signal is input, the process proceeds to step S6.

  In step S6, it is determined whether or not the timer has expired. If the timer has expired, the process proceeds to step S7. If the timer has not expired, step S4 is repeated.

  In step S7, the liquid crystal display device 3 is turned off, and the liquid crystal display device 3 is set to screen non-display, and the process proceeds to step S8. In step S8, it is determined whether or not the hold state is set based on a signal from the hold switch 4. If the hold state is set, the process proceeds to step S10. If the hold state is not set, the process shifts to step S9.

  In step S10, the red LED 5 blinks in pattern 2 indicating the hold state (0.5 seconds off, 0.5 seconds on, 0.5 seconds off, 0.5 seconds on, 4 seconds off), and the process proceeds to step S8. . In step S9, it is determined whether or not an operation signal is input from the operation key group 2. If an operation signal is input, the instructed operation is executed, and the process proceeds to step S2. If no operation signal is input, the process proceeds to step S11.

  In step S11, the red LED 5 is blinked with pattern 1 (0.5 seconds off, 0.5 seconds on, 4 seconds off) indicating a state other than the hold state, and the process proceeds to step S8. As described above, when the operation signal is not input for a predetermined time, the liquid crystal display device 3 is turned off to prevent the battery from being consumed, and the hold state is displayed by the LED which does not consume power, so the operation key does not operate. Sometimes it is immediately noticed that it is in the hold state, and no complaints such as useless complaints disappear.

  The first embodiment is configured as described above, but the invention is not limited thereto. For example, the red LED may display only the operation key hold state, and may be described as operation key hold in the vicinity thereof. By doing so, the possibility of erroneous recognition is further reduced. Further, the hold state may be displayed by lighting the red LED instead of blinking.

  FIG. 4 is a flowchart showing the operation of the portable hard disk audio device according to the second embodiment of the present invention. The hardware of the portable hard disk audio device according to the second embodiment is the same as that according to the first embodiment.

  The operation of the control device 6 according to the second embodiment will be described with reference to FIG. The control device 6 is driven by a battery (not shown), and when a power switch (not shown) is turned off, step S20 is always executed to determine whether the power is turned on.

  If it is determined in step S20 that the power is turned on, the process proceeds to step S21, the backlight 3a is turned on, the screen of the liquid crystal display device 3 is displayed, and the process proceeds to step S22. In step S22, it is determined whether or not the light saving / extinguishing power saving mode is selected. If it is selected, the process proceeds to step S23, and if it is not selected, step S22 is repeated. It should be noted that the power saving mode can be set / cancelled by key operation, and if it is not in the power saving mode, an operation key or hold control input is accepted during the operation of step S22.

  In step S23, the dimming timer and the extinguishing timer incorporated in the control device 6 are reset, and the process proceeds to step S24. In step S24, the dimming timer and the extinguishing timer are started and the process proceeds to step S25.

  In step S25, it is determined whether or not the hold state is set based on a signal from the hold switch 4. If the hold state is set, a character or symbol indicating the hold state is displayed on the liquid crystal display device 3 so as to be superimposed on a still image or the like. If not in the hold state, the process proceeds to step S26.

  In step S26, it is determined whether or not an operation signal is input from the operation key group 2. If an operation signal is input, the instructed operation is executed, and the process proceeds to step S21. If no operation signal is input, the process proceeds to step S27.

  In step S27, it is determined whether or not the dimming timer has expired. If the timer has expired, the process proceeds to step S28. If the timer has not expired, the routine between steps S25 and 27 is repeated. .

  In step S28, the backlight 3a is dimmed and the process proceeds to step S29. In step S29, it is determined whether or not the hold state is set based on a signal from the hold switch 4. If the hold state is set, a character or symbol indicating the hold state is displayed on the liquid crystal display device 3 so as to be superimposed on a still image or the like. If not in the hold state, the process proceeds to step S30.

  In step S30, it is determined whether or not an operation signal is input from the operation key group 2. If an operation signal is input, the instructed operation is executed, and the process proceeds to step S21. If no operation signal is input, the process proceeds to step S31.

  In step S31, it is determined whether or not the extinguishing timer has expired. If the timer has expired, the process proceeds to step S32. If the timer has not expired, step S29 is repeated.

  In step S32, the backlight 3a is turned off, and the liquid crystal display device 3 is set to screen non-display and the process proceeds to step S33. In step S33, it is determined whether or not the hold state is set based on a signal from the hold switch 4. If the hold state is set, pattern 2 indicating that the hold state is set in step S36 (0.5 seconds off, 0.5 seconds on, 0.5 seconds). When the LED is turned off, the LED is turned on for 0.5 seconds, and the LED is turned off for 4 seconds, the red LED 5 blinks and the process proceeds to step S33.

  In step S34, the red LED 5 is blinked in pattern 1 (0.5 seconds off, 0.5 seconds on, 4 seconds off) indicating a state other than the hold state, and the process proceeds to step S35. In step S35, it is determined whether or not an operation signal is input from the operation key group 2. If an operation signal is input, the instructed operation is executed, and the process proceeds to step S21. If no operation signal is input, the process proceeds to step S33.

  Thus, the present invention can be applied to an electronic device that employs a power saving mode in which the backlight is dimmed and extinguished. Instead of turning off the backlight and turning off the screen at the same time, the screen may be turned off if the operation key group is not operated for a predetermined period after turning off the backlight, and the LED may blink.

  Furthermore, a push button may be used instead of the hold switch as the operation key hold means, or an operation key for performing another operation may be pressed and held in the operation key hold state.

  The embodiment described above can be summarized as follows.

First Embodiment (1) After a predetermined time has elapsed since the power was turned on, the backlight and the liquid crystal screen are turned off and not displayed at the same time. Start.

Second Embodiment (2) The backlight is dimmed after a first predetermined time has elapsed since the power was turned on. At this time, the liquid crystal display screen is in a display state. Further, after the second predetermined time has elapsed, the backlight is turned off and the liquid crystal display screen is also hidden. When the backlight is turned off and the liquid crystal display screen is not displayed, the LED starts blinking (or turned on).

However, the present invention is not limited to the above description. The effects of the present invention can also be achieved by the following states.

(3) The backlight is turned off after the first predetermined time has elapsed since the power was turned on. At this time, the liquid crystal display screen is in a display state. Further, the liquid crystal display screen is also hidden after the second predetermined time has elapsed. When the liquid crystal display screen is not displayed, the LED starts blinking (or lit).

(4) The backlight is turned off after the first predetermined time has elapsed since the power was turned on. At this time, the liquid crystal display screen is in a display state. Further, after the second predetermined time has elapsed, the liquid crystal display screen is not displayed. In the liquid crystal display state, blinking (or lighting) of the LED is started when the backlight is turned off. (5) The backlight is dimmed after the first predetermined time has elapsed since the power was turned on. At this time, the liquid crystal display screen is in a display state. Further, after the second predetermined time has elapsed, the backlight is turned off. At this time, the liquid crystal display screen is in a display state. Further, after the third predetermined time has elapsed, the liquid crystal display screen is also hidden. When the liquid crystal display screen is not displayed, the LED starts blinking (or lit).

(6) The backlight is dimmed after the first predetermined time has elapsed since the power was turned on. At this time, the liquid crystal display screen is in a display state. Further, after the second predetermined time has elapsed, the backlight is turned off. At this time, the liquid crystal display screen is in a display state. Further, after the third predetermined time has elapsed, the liquid crystal display screen is also hidden, but the LED starts blinking (or turned on) when the backlight is turned off.

If not in the hold state, the backlight is turned on by the input of the operation key and the liquid crystal display screen is brought into the display state, as described above, in any embodiment.

1 is an external view showing a portable hard disk audio device that is Embodiment 1 of the present invention. FIG. It is a block diagram which shows the structure of the portable hard disk audio apparatus. It is a flowchart which shows operation | movement of the portable hard disk audio apparatus. It is a flowchart which shows operation | movement of the portable hard disk audio apparatus which is Example 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Portable hard disk audio apparatus 2 Operation key group, 2a Play key 3 Liquid crystal display device, 3a Backlight 4 Hold switch 5 Red LED
6 Control device 7 Hard disk drive 8 D / A converter 9 RAM

Claims (6)

It has a display, operation keys, and operation key hold means,
Displaying the operating state on the display and not operating the operation key for a predetermined period of time, at least one of dimming the backlight of the display, turning off the backlight of the display, and hiding the display screen of the display Electronic equipment that performs
A light emitting element,
An operation key hold state display device configured to display the operation key hold state by blinking or lighting the light emitting element in the operation key hold state. The blinking or lighting of the light emitting element is executed when the display starts at least one of the dimming, the extinguishing, and the screen non-display.
The display device in the operation key hold state according to claim 1. The light emitting element can display other states other than the operation key hold state, and the blinking pattern of the light emitting element is different between the operation key hold state and the other state other than the operation key hold state. The display device in the operation key hold state according to claim 1 or 2. It has a display, operation keys, and operation key hold means,
If the operation state is displayed on the display and the operation key is not operated for a first predetermined period, the backlight of the display is dimmed or extinguished, and after the dimming or extinguishing, a second predetermined period longer than the first predetermined period. An electronic device that hides the display screen of the display when the period operation key is not operated,
A light emitting element,
An operation key hold state display device configured to display the operation key hold state by blinking or lighting the light emitting element in the operation key hold state. The flashing or lighting of the light emitting element is executed when the backlight of the display is dimmed or turned off, or when the display screen of the display is hidden.
The display device in the operation key hold state according to claim 4. Other states other than the operation key hold state can be displayed by the light emitting element,
6. The operation key hold state display device according to claim 4 or 5, wherein the flashing pattern of the light emitting element is different between the operation key hold state and a state other than the operation key hold state.

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