JP2009019927A - Display apparatus, display method of same, and clock apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display apparatus having an illumination section and a display section visibly recognized by an illumination from the illumination section, and easily making the display section be visible by a display content confirmation operation of a user detected by a detection section even if the illumination section is turned off by an instruction section, and also provide a display method of the display apparatus and a clock apparatus. <P>SOLUTION: The invention includes the display apparatus having the illumination section and the display section on which a display content is visibly recognized by the illumination from the illumination section. The display apparatus includes: the detection section for detecting the display content confirmation operation of the user; and a control section for turning on the illumination section, and making the display content be visibly recognized when the display content confirmation operation is detected by the detection section while the illumination section is turned off. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a display device, a display method for a display device, and a timing device, and more particularly, to a display device having a lighting unit and a display unit that is visualized by illumination from the lighting unit, a display method for the display device, and a timing device.

  In recent years, as a display device for in-vehicle use, the display surface is covered with a semi-translucent resin material with smoke applied, and a pointer and dial including a fluorescent material are provided on the inside, and the pointer and dial are illuminated. There is a display device configured to emit a fluorescent material contained in the display and visualize a pointer and a dial from the outside through a display surface. In this display device, the display content can be visually recognized when the pointer and dial are illuminated, thereby improving the design.

  When the accessory switch is turned off, the automobile supplies power from various batteries to the various electrical components. Therefore, when such a display device is mounted on an automobile or the like, the illumination is turned off when the accessory switch is off in order to minimize battery consumption.

  For this reason, when the user wants to know the information displayed on the display device after turning off the accessory switch, it is necessary to turn on the accessory switch one by one, and the operability is poor.

As a method for preventing the battery of the device from being consumed, a time measuring device that controls time display according to the usage state of the user has been proposed (for example, see Patent Document 1).
Japanese Patent Laid-Open No. 11-223682

  However, this type of conventional timekeeping device of this type is a cover made of a semi-transparent resin material that illuminates the pointer and emits light when the accessory switch is turned off in order to prevent battery consumption. Since it is possible to visually check through the accessory switch, it is necessary to turn on the accessory switch when the user wants to check the time after turning off the accessory switch.

  The present invention has been made in view of the above points, and a display device and a display device that can easily visualize the display unit by the display content confirmation operation of the user by the detection unit even when the illumination device is turned off by the instruction unit An object of the present invention is to provide a display method and a timing device.

  The present invention is a display device having an illumination unit and a display unit whose display content can be visually recognized by illumination from the illumination unit, the detection unit detecting a display content confirmation operation of a user, and the illumination unit When the display content confirmation operation is detected by the detection unit in a state where the display unit is turned off, the illumination unit is turned on so that the display content can be visually recognized.

  The detection unit includes a pyroelectric infrared sensor. Furthermore, the control unit turns on the illumination unit according to the display request operation detected by the detection unit, and turns off the illumination unit after a predetermined time has elapsed.

  In addition, the display unit includes an instruction unit that instructs the display content, and a semi-light transmissive member provided on a front surface of the instruction unit.

  Furthermore, the present invention is a timing device having an illumination unit and a time display unit whose time can be visually recognized by illumination from the illumination unit, the detection unit detecting a display content confirmation operation of the user, When the illumination unit is turned off, supply of power to the timing display unit is stopped, and when the illumination unit is turned on, power is supplied to the timing display unit, and the time measurement is performed to indicate the time. And a control unit that controls the display unit.

  According to the present invention, when the display unit confirming operation is detected by the detection unit while the lighting unit is turned off by the instruction unit, the lighting unit is turned on so that the display content can be visually recognized. The display contents can be easily confirmed by the display contents confirmation operation, and the operability of the apparatus can be improved.

  FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a block diagram of an embodiment of the present invention.

  In this embodiment, a timing device will be described as a display device. The timing device 100 of the present embodiment is a vehicle-mounted timing device mounted on an automobile, and includes a circuit board 111, a drive unit 112, a dial 113, a pointer shaft 114, a pointer 115, a light shielding case 116, a smoke cover 117, a prism. 118 and a connection terminal 119 are included.

  The circuit board 111 is equipped with a microcomputer 121, an amplifier circuit 123, an interface circuit 124, a dial lighting LED 1, a pointer lighting LED 2, LED driving circuits 125 and 126, and a driving unit 112. Further, the connection terminal 119 and the pyroelectric infrared sensor 122 are connected to the circuit board 111. The connection terminal 119 extends to the outside from the back surface of the light shielding case 116, and is connected to the power source 101, the ignition switch SWIG, and the accessory switch SWACC.

  The pyroelectric infrared sensor 122 is attached to the smoke cover 117, is exposed to the outside, and detects that a hand or the like has approached.

  The drive power Vcc supplied from the power supply 101 is introduced into the circuit board 111 from the connection terminal 119, and the microcomputer 121, pyroelectric infrared sensor 122, amplifier circuit 123, interface circuit 124, light emitting diode LED1 for dial illumination, pointer illumination. Applied to the light emitting diode LED2 and the like. Further, the ignition switch SWIG and the accessory switch SWACC are connected to the microcomputer 121.

  The microcomputer 121 measures time based on a program installed in advance in a built-in ROM, EEPROM or the like, and is detected by the on / off state of the ignition switch SWIG or the accessory switch SWACC and the pyroelectric infrared sensor 122. The detection signal is detected, and the light emitting diode LED1 for dial illumination and the light emitting diode LED2 for pointer illumination are detected according to the on / off state of the ignition switch SWIG and the accessory switch SWACC and the detection signal detected by the pyroelectric infrared sensor 112. Control lighting.

  In addition, the microcomputer 121 has a built-in drive circuit for driving the drive unit 112. The drive unit 112 is driven by a drive pulse supplied from a drive circuit built in the microcomputer 121 to rotate the pointer shaft 114.

  The pyroelectric infrared sensor 122 detects infrared displacement in the detection region. For example, it is possible to detect that a person's hand is held over the detection area. The detection signal of the pyroelectric infrared sensor 122 is supplied to the amplifier circuit 123.

  The amplifier circuit 123 amplifies the detection signal supplied from the pyroelectric infrared sensor 112. The detection signal amplified by the amplifier circuit 123 is supplied to the interface circuit 124.

  The interface circuit 124 has an interface with the microcomputer 121, converts the detection signal supplied from the amplifier circuit 123 into digital data, and supplies the digital data to the microcomputer 121.

  The light emitting diode driving circuits 125 and 126 are composed of resistors R1 to R3 and a transistor Q. When the drive control signal from the microcomputer 121 becomes high level, the transistor is turned on, and current is supplied from the light emitting diodes LED1 and LED2. By drawing in, a current is passed through the light emitting diodes LED1 and LED2 to cause the light emitting diodes LED1 and LED2 to emit light.

  The dial 113 has a configuration in which a fluorescent material is mixed into a transparent resin material, and has a configuration in which a light shielding layer is applied except for characters and instruction portions. The dial 113 emits light by exciting the mixed fluorescent material by the light emitted from the light emitting diode LED1 for dial illumination. As a result, the dial 113 appears to emit only characters and instructions. The pointer 115 has a configuration in which a fluorescent material is mixed into a transparent resin material, and when the light of the pointer illumination light emitting diode LED2 is irradiated, the fluorescent material is excited to emit light. As a result, the pointer 115 appears to emit light.

  The light shielding case 116 has a structure in which a light shielding resin material is formed in a substantially bottomed cylindrical shape, and the front surface is opened, and a circuit board 111, a drive unit 112, a dial 113, a pointer shaft 114, The pointer 115, the prism 118, and the like are accommodated. A smoke cover 117 is attached to the front opening. The smoke cover 117 is made of a semi-light transmissive resin material or the like, and is attached to the front opening of the light shielding case 116.

  With the above-described structure, the time measuring device 100 of the present embodiment has the light emitting diode LED1 for dial illumination and the light emitting diode LED2 for pointer illumination turned on inside the light shielding case 116, and the fluorescent material mixed in the dial 113 and the pointer 115 When the light is emitted, characters, instructions, and hands are visualized through the smoke cover 117 so that the time can be recognized. When the dial light emitting diode LED1 and the dial light emitting LED LED2 are turned off, The inside is dark, the inside of the smoke cover 117 cannot be seen from the outside, and the time cannot be recognized.

  Therefore, in order to know the time by the time measuring device 100 of this embodiment, it is necessary to turn on the light emitting diode LED1 for dial illumination and the light emitting diode LED2 for pointer illumination.

  Next, processing of the microcomputer 121 will be described.

  FIG. 3 shows a process flowchart of the microcomputer 121.

  When the ignition switch SWIG or the accessory switch SWACC is turned on in step S1-1, the microcomputer 121 turns on the dial illumination LED 1 in step S1-2. The microcomputer 121 waits for Y1 seconds to elapse after the dial illumination LED 1 is turned on in step S1-3.

  The microcomputer 121 turns on the pointer illumination light emitting diode LED2 in step S1-4 after Y seconds have elapsed since the dial illumination light emitting diode LED1 is turned on in step S1-3.

  Next, the microcomputer 121 waits for Y2 seconds to elapse after the pointer illumination light emitting diode LED2 is turned on in step S1-5. Note that the standby time Y1 and the standby time Y2 may be the same time or different times.

  The microcomputer 121 determines whether or not the ignition switch SWIG or the accessory switch SWACC is turned on in step S1-6 when Y2 seconds elapse after the light emitting diode LED2 for lighting the pointer is turned on in step S1-5. If the ignition switch SWIG or the accessory switch SWACC is turned on in step S1-6, the microcomputer 121 continues the lighting state of the dial illumination light emitting diode LED1 and the pointer illumination light emitting diode LED2 in step S1-7. .

  If the ignition switch SWIG or the accessory switch SWACC is turned off in step S1-7, the microcomputer 121 turns off the dial illumination LED 1 and the pointer illumination LED 2 in step S1-8. Control goes to step S1-9.

  In step S1-9, the microcomputer 121 determines whether or not a human hand or the like is placed over the detection area by the pyroelectric infrared sensor 112. In step S1-9, when a human hand or the like is placed over the detection area by the pyroelectric infrared sensor 112, the microcomputer 121 emits the dial illumination LED 1 and the pointer illumination light emission in step S1-10. The diode LED2 is turned on simultaneously.

  The microcomputer 121 waits for X seconds to elapse after the dial illumination LED 1 and the pointer illumination LED 2 are turned on in step S1-11. When X seconds have elapsed in step S1-11, the microcomputer 121 turns off the dial-use light emitting diode LED1 and the pointer illumination light-emitting diode LED2 in step S1-12, and returns to step S1-1.

  As described above, the ignition switch SWIG or the accessory switch SWACC is in the on state, the ignition switch SWIG or the accessory switch SWACC is in the off state, and a human hand or the like is placed on the detection region of the pyroelectric infrared sensor 112. In such a case, the dial illumination LED 1 and the dial illumination LED 2 are turned on, the fluorescent material mixed in the dial 113 and the dial 115 is excited, emits light, and is displayed through the smoke cover 117. The time can be recognized.

  FIG. 4 shows an operation explanatory diagram of one embodiment of the present invention. 4A shows a display state when the ignition switch SWIG or the accessory switch SWACC is turned off, and FIG. 4B shows a state of the pyroelectric infrared sensor 112 when the ignition switch SWIG or the accessory switch SWACC is turned off. The display state when the hand is held over the detection area is shown.

  When the ignition switch SWIG or the accessory switch SWACC is turned off, the dial illumination LED 1 and the pointer illumination LED 2 are both extinguished, so that the dial 113 and the dial 115 have the dial illumination LED 1 and Since no light is supplied from the pointer illumination light emitting diode LED2, the fluorescent material mixed in the dial 113 and the pointer 115 is not excited, and therefore the dial 113 and the pointer 115 do not emit light. Therefore, since the inside of the light shielding case 116 is darker than the outside of the smoke cover 117, the inside cannot be seen from the outside of the smoke cover 117, and thus the display as shown in FIG. .

  When the ignition switch SWIG or the accessory switch SWACC is turned off and the hand is placed over the detection area of the pyroelectric infrared sensor 112, the dial illumination LED 1 and the pointer illumination LED 2 are turned on. When the dial light emitting diode LED1 and the pointer illumination light emitting diode LED2 are turned on, light is supplied from the dial illumination light emitting diode LED1 and the pointer illumination light emitting diode LED2 to the fluorescent material mixed in the dial 113 and the pointer 115. The fluorescent material mixed in the dial 113 and the pointer 115 is excited. As a result, the dial 113 and the pointer 115 emit light.

  When the dial 113 and the pointer 115 emit light, the dial 113 and the pointer 115 rise to the front side of the smoke cover 117 through the smoke cover 117 as shown in FIG. Thereby, the time can be recognized.

  When the dial 113 and the pointer 115 are displayed by holding the hand over the detection area of the pyroelectric infrared sensor 112 with the ignition switch SWIG or the accessory switch SWACC turned off, the dial illumination light emission is displayed. When X seconds elapse after the diode LED1 and the pointer illumination light emitting diode LED2 are turned on, the dial illumination light emitting diode LED1 and the pointer illumination light emitting diode LED2 are turned off, and the non-display state shown in FIG.

  According to this embodiment, even when the ignition switch SWIG or the accessory switch SWACC is in an off state, the time is displayed on the timing device 100 by holding a human hand or the like over the detection area of the pyroelectric infrared sensor 112. Can be recognized. For this reason, as the on-vehicle timing device 100, it is possible to improve designability and improve usability.

  In the present embodiment, when the ignition switch SWIG or the accessory switch SWACC is turned off, the dial illumination light emitting diode LED1 and the pointer illumination light emitting diode LED2 are turned off to save power. Furthermore, the hand movement of the pointer 115 may be stopped. Note that the time is always measured by the microcomputer 121, and when the ignition switch SWIG or the accessory switch SWACC is turned on or the hand is detected by the pyroelectric infrared sensor 112, the dial illumination is emitted. The diode LED1 and the pointer illumination light emitting diode LED2 may be turned on, and the pointer 115 may be moved to the current time and moved.

  Further, the pyroelectric infrared sensor 122 may be configured to be pulled out from the timing device 100 and may be attached to the outside of the timing device 100. Thereby, the pyroelectric infrared sensor 122 can be attached to a position where the user can easily perform the display content confirmation operation and the hand-holding operation, and the operability can be improved.

  Furthermore, in the present embodiment, the example using the pyroelectric infrared sensor 122 as the detection unit that detects the display content confirmation operation of the user has been described, but the detection unit is not limited to this, and the reflection type A non-contact sensor such as an optical sensor can also be used. Furthermore, a switch such as a push button switch may be used. In short, any configuration that can detect a user's display content confirmation operation may be used.

  Furthermore, in the present embodiment, the explanation was made by taking an in-vehicle timing device as an example, but the display device of the present invention is not limited to the timing device, and is generally applied to a display device whose display disappears when the power switch is turned off. Needless to say, you can.

  In addition, this invention is not limited to the said Example, It cannot be overemphasized that a various modified example can be considered in the range which does not deviate from the summary of this invention.

It is a block block diagram of one Example of this invention. It is a block diagram of one Example of this invention. 5 is a process flowchart of the microcomputer 121. It is operation | movement explanatory drawing of one Example of this invention.

Explanation of symbols

100 timing device, 101 power supply 111 circuit board, 112 driving unit, 113 dial, 114 pointer shaft, 115 pointer 116 light shielding case, 117 smoke cover, 118 prism, 119 connection terminal 121 microcomputer, 122 pyroelectric infrared sensor, 123 amplification Circuit 124 Interface circuit, 125, 126 Light emitting diode drive circuit LED1 Light emitting diode for dial illumination, LED2 Light emitting diode for pointer illumination

Claims (7)

A display device having an illumination unit and a display unit capable of visually recognizing display contents by illumination from the illumination unit,
A detection unit for detecting a user's display content confirmation operation;
A display device comprising: a control unit configured to turn on the illumination unit and make the display content visible when the display unit confirming operation is detected by the detection unit in a state where the illumination unit is turned off. The display device according to claim 1, wherein the detection unit includes a pyroelectric infrared sensor. The display device according to claim 1, wherein the control unit turns on the illumination unit according to the display request operation detected by the detection unit and turns off the illumination unit after a predetermined time has elapsed. The display unit is configured to instruct the display content;
The display device according to claim 1, further comprising a semi-light transmissive member provided on a front surface of the instruction unit. A display method for a display device comprising: an illumination unit; and a display unit capable of visually recognizing display contents by illumination from the illumination unit,
A display device display method in which when the detection unit detects a display content confirmation operation by the detection unit in a state where the illumination unit is turned off, the illumination unit is turned on so that the display content can be visually recognized. A timing device having an illumination unit and a time display unit capable of visually recognizing the time by illumination from the illumination unit;
A detection unit for detecting a user's display content confirmation operation;
When the display unit confirming operation is detected by the detection unit in a state where the illumination unit is turned off by the operation unit, the timing unit includes a control unit that turns on the illumination unit and makes the time visible. apparatus. A timing device having an illumination unit and a time display unit capable of visually recognizing the time by illumination from the illumination unit;
A detection unit for detecting a user's display content confirmation operation;
When the illumination unit is turned off, supply of power to the timing display unit is stopped, and when the illumination unit is turned on, power is supplied to the timing display unit, and the time is indicated. A time measuring device having a control unit for controlling a time display unit.