JPH09325051A - Display device - Google Patents

Abstract

(57) Abstract: In a display device using a pointer, a light emitting element is arranged on the outer periphery of a scale pointed by the pointer, and information different from the information displayed by the pointer is shared by the scale. Center part 3 of arc-shaped scale pattern 31
A light emitting diode drive circuit for generating a light emitting diode drive signal different from the pointer drive signal on the basis of a detection signal in a display device in which a rotating pointer 33 is arranged on 1a and a plurality of light emitting diodes 3 are provided on the outer circumference of a scale 31. The light-emitting diode 3 displays information different from the value of the scale 31 indicated by the pointer 33, for example, the maximum value of the engine speed or the average value of the vehicle speed by sharing the scale 31.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device provided with a light emitting element along the outer circumference of a scale of the display device, and is suitable for use in a display device such as a tachometer and a speedometer of an automobile.

[0002]

2. Description of the Related Art Conventionally, there is a device shown in Japanese Utility Model Laid-Open No. 5-33022 as a display device in which a light emitting diode (light emitting element) is provided at a position corresponding to the scale along the outer circumference of the scale. In this conventional apparatus, there are two means for making the dial scale visible at night. One is to discharge the discharge tube placed on the back side of the dial and illuminate the dial with the light to brighten the scale of the dial. In addition, since the light emitting diode is arranged at a position corresponding to the scale, the light emitting diode is made to illuminate and the position corresponding to the scale is made bright to substitute the scale. Then, these two means can be selected by switching the switches.

[0003]

However, the scale can be displayed only in two ways, and no new display is made on the display device. The present invention has been made in view of the above point, and in a display device using a pointer, a plurality of light emitting diodes are arranged on the outer periphery of a scale pointed by the pointer, and the information indicated by the pointer by these light emitting diodes is different. It is intended to display information.

[0004]

In order to achieve the above object, the following technical means are employed. According to the invention of claim 1 or 2, an arc-shaped scale pattern (11, 2
1,31,41) central part (11a, 21a, 31a,
41a) is arranged with a rotating pointer (13, 23, 33, 43) and a plurality of light emitting elements (3) are provided on the outer circumference of the scale (11, 21, 31, 41). A light emitting element drive circuit (106) for generating a light emitting element drive signal different from the above is provided, and the light emitting element (3) has a pointer (1
3, 23, 33, 43) indicates the scale (11, 2)
Information different from the value of 1, 31, 41)
This display device generates a light emitting element driving signal which is a signal different from the pointer driving signal, and the light emitting element (2) is based on this signal. , The information that is different from the information indicated by the pointer is displayed. As a result, the pointers (13, 23, 33,
Two pieces of information can be displayed by the information indicated by 43) and the information indicated by the light emitting element (3). In addition, the scale (11, 2
Since the light emitting element (3) is arranged along the outer periphery of the (1, 31, 41), the scale (11, 21, 31, 41)
Can be shared, and another scale (11, 21, 31,
41) It requires less space than adding patterns and displaying this information.

According to the invention of claim 3, claim 1
Pointer (13, 2) for rotating the light emitting element (3) described in 1.
3, 33, 43) is characterized in that the light emitting element (3) located in a predetermined range near the tip (23a, 33a) is turned on. In this way, the pointers (13, 23, 33, 4
The pointer (13, 23, 33, 43) according to the rotation of 3)
By illuminating the light emitting element (3) located in a predetermined range near the pointer (13, 23, 33, 43) and the scale (1
1, 21, 31, 41) can be brightened. Thereby, the visibility can be improved.

According to the fourth aspect of the invention, a plurality of light emitting elements (11, 21, 31, 41) are provided on the outer periphery of the scale (11, 21, 31, 41) of the dial (2) provided with the scales (11, 21, 31, 41). A display device having a display section (1) having (3) is characterized in that the light emitting element (3) is configured in at least two different colors. As a result, when the light emitting element (3) composed of different colors illuminates the dial (2) and the pointers (13, 23, 33, 43), it emits light of at least two colors. It is possible to provide a display having a coloring in which two or more colors are mixed.

According to the fifth aspect of the present invention, at least two different colors of the light emitting element (3) are red or orange light emitting elements (3) on the upper side and blue or green colors on the lower side. It is characterized in that the light emitting element (3) is used. If all the light emitting elements (3) are made to emit light in this arrangement, the dial (2) becomes a new lighting like an aurora. In other words, since the upper part of the dial (2) is red system and the lower part is blue system, the middle of these is yellow to yellowish green, and illumination that looks like aurora is possible.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention shown in the drawings will be described. (First Embodiment) FIGS. 1 and 2 show a case where the present invention is applied to a display device of an automobile, and this display device is attached to an instrument panel in front of a driver's seat in a vehicle compartment. As shown in FIG. 1, the display unit 1 includes a dial 2 and scale patterns 11, 21, 31, 41 formed on the dial 2 and central portions 11 a, 2 of the scale patterns 11, 21, 31, 41.
Pointers 13, 23, 3 arranged at 1a, 31a, 41a
It is composed of 3,43. The dial 2 is composed of a substantially rectangular plate member, and the front side of the face of the dial 2 corresponds to the driver's seat side, and the vertical direction of the face corresponds to the vertical direction of the vehicle. Further, the center of the dial 2 faces the substantial center of the driver's seat.

In the dial 2 of the display device, a transparent plate member is provided with a black printing layer, and the black printing layer is punched to form a pattern of each scale. The scale pattern is an arc-shaped fuel scale pattern 11 and a fuel mark 12, which represent the amount of fuel, an arc-shaped vehicle speed scale pattern 21, which represents the vehicle speed, and a unit of the vehicle speed scale (km).
/ H), a vehicle speed unit pattern 22, an arc-shaped rotation speed scale pattern 31 indicating the engine speed, a rotation speed unit pattern 32 indicating the engine speed unit (× 1000 r / min), and a water temperature scale indicating the water temperature. Pattern 41
And a water temperature mark 42. In the present example, the present invention is applied to the display of the number of revolutions of the engine, and a large number of light emitting diodes (light emitting elements) 3 are provided along the outer periphery of the number of revolutions scale 31.

This display device is provided with pointers 13, 23, 33 and 43 for indicating the above-mentioned scales. The pointers 13, 23, 33, 43 are attached to a drive shaft 107a of a pointer drive mechanism 107, which will be described later, which drives these pointers. FIG. 2 is a sectional view of this display device. As shown in the figure, the dial 2 is a dial plate 4 on the rear side of the vehicle.
And is fixed by being sandwiched by a case member 5 formed on the front side of the vehicle. The dial plate 4 is made of a gray member or the like to make it easier to see the scales and the like formed on the dial 2. The opening portion of the dial plate 4 on the driver's seat side is sealed with a transparent plate member (transparent plate member) 6. This is to prevent dust and the like from adhering to the dial 2 and to make the dial 2 clearly visible from the driver's seat.

Then, a hole 2a is provided in the dial 2 approximately at the center in the vertical direction of the drawing, and the rotary shaft 33a of the pointer 33 is arranged in the hole 2a. Pointer 33 through this hole 2a
The rotating shaft 33a of the drive shaft 1 is the drive shaft 1 of the pointer drive mechanism 107 described above.
07a, and the pointer driving mechanism 107 is fixed to the case member 5. The rotating shaft 3 of the pointer 33
3a and the drive shaft 107a of the pointer drive mechanism 107 coincide with each other.

Case member 5 near the pointer drive mechanism 107
A light source 7 is attached to the inside of the dial, and the light source 7 illuminates from the back surface of the dial 2 made of a transparent member and guides the dial 2 to brighten the scale and the like made on the dial 2. Work. As shown in FIG. 2, the above-mentioned light emitting diode 3 is arranged on the dial 2 in a state of penetrating the dial 2 on the upper side of the drawing with respect to the rotating shaft 33a of the pointer. The electric terminals 3e of the plurality of light emitting diodes 3 are connected to the arc-shaped 8 arranged on the back surface of the dial 2. The light emitting diode drive circuit (light emitting element drive circuit) 106 generates a light emitting diode drive signal (light emitting element drive signal), and a current corresponding to this signal is supplied to the light emitting diode 3 via the printed board 8. Therefore, the printed board 8 is electrically connected to the light emitting diode drive circuit 106. Further, the light emitting diode drive circuit 106 is provided with a plurality of output terminals for turning on and off the flow of current, and the printed circuit board 8 is connected with the light emitting diodes 3 one by one. It is printed as. The light emitting diode 3 emits light when a current flows from this output terminal.

Further, the color of the light emitting diode 3 is displayed in blue when the engine speed is in the low / medium speed range, and is displayed in red when the engine speed is in the high speed range. The left end portion 3a to the middle portion 3b are blue light emitting diodes, and the middle portion 3b to the right end portion 3c are red light emitting diodes. Next, driving of the pointer 33 of the display device will be described. Pointer drive mechanism 1
Although a motor is used for 07, the driving method of the motor is well known, and therefore the drawing is omitted.

As shown in FIG. 3, in the rotation speed display device, the sensor section 104 detects an on / off signal generated in the primary winding of the ignition coil included in the sensor section 104 and generates a detection signal. Let Then, based on this detection signal, the pointer drive circuit 105 generates a pointer drive signal,
The current is converted into a current having a value according to the pointer drive signal. As a result, the motor in the pointer driving mechanism 107 is moved and the pointer 33 is moved.

In this example, information different from the value of the rotational speed scale instructed by the pointer 33 which operates based on this drive system, for example, the maximum value and the average value of the rotational speed are displayed. Here, an example is shown in which the maximum value of the rotation speed is displayed by the light emitting diode 3 described above. The maximum value of the number of rotations means the maximum value of the average number of rotations in a predetermined unit time. For example, the maximum value of the number of rotations from the engine start time to the engine stop time is displayed by the light emitting diode 3. .

The operation of this display device is as shown in FIG.
When the ignition switch 102 is turned on, the pointer driving circuit 105 and the light emitting diode driving circuit 106 are connected to the battery (power source) 101, and the pointer driving mechanism 107 moves the pointer 33 as described above. The sensor unit 104 detects an on / off signal generated in the primary winding. This detection signal is transmitted to the maximum value calculation circuit built in the light emitting diode drive circuit 106. Then, a light emitting diode drive signal, which is an on / off signal for designating which light emitting diode 3 to emit light, is calculated and generated by this maximum value calculation circuit. A current flows from the output terminal corresponding to the light emitting diode drive signal. This current flows through the printed board 8 to the light emitting diode 3. When a current flows, the light emitting diode 3 at a position corresponding to this current emits light. The maximum value of the engine speed can be found by reading the scale corresponding to the position where the light emitting diode 3 is illuminated.

As a result, the calculation circuit operates according to the detection signal, and the display different from the engine speed can be displayed by the light emitting diode 3, so that a new display which has not been available can be obtained. In addition, since the light emitting diodes are arranged along the outer circumference of the scale, the scale can be shared, and a smaller space is required than the case where another scale pattern is added.

In this example, as shown in FIG. 1, the light emitting diode 3 is arranged by making a hole in the dial 2, but at the position where the light emitting diode 3 is arranged, the dial 2 is not provided with a black printing layer,
The same effect can be obtained even if the light emitting diode 3 is arranged on the back surface of the dial 2 while keeping it transparent. Further, the unit time of the maximum value of the rotation speed may be one hour, and a changeover switch may be additionally provided so that the unit time can be set.

(Second Embodiment) As shown in FIG. 3, this example shows a case where the present invention is applied to a vehicle speed display instead of the rotation speed display in the first embodiment. A light emitting diode 3 is provided. The rest of the basic configuration is the same as that of the first embodiment, and will be omitted.
The light emitting diode 3 changes the color of the light emitting diode 3 when the vehicle speed is 100 km / h or less and when the vehicle speed is 100 km / h or more. The light emitting diode 3d and the light emitting diode 3d located at a position corresponding to the 100 position of the vehicle speed scale 21 The light emitting diode 3 on the left side of the paper is blue, and the light emitting diode 3 on the right side of the paper is red.

Next, the drive system of the pointer 23 of the vehicle speed display device will be described below. Although a motor is used for the pointer driving mechanism 107, the drive system of the motor is well known, and therefore the drawing is omitted. In this vehicle speed display device, the rotation in proportion to the rotation of the wheels is taken out from the speed change mechanism and guided to the display device by the flexible shaft, thereby moving the motor in the pointer driving mechanism and moving the pointer 23.

Information different from the value of the vehicle speed scale indicated by the pointer 23 based on the drive system of the display device can indicate the maximum value, the average value, etc. of the vehicle speed as in the first embodiment. The example shows a case where the average value of the vehicle speed is displayed by the light emitting diode 3 described above. The average value of the vehicle speed refers to the average vehicle speed in a predetermined unit time. For example, the unit time is set to one hour, and the average value of the vehicle speed in one hour is displayed by the light emitting diode 3.

The operation of this display device is as shown in FIG.
The same as the first embodiment, but the light emitting diode drive circuit 10
6 has a built-in average value calculation circuit, and the light emitting diode drive signal is calculated by this average value calculation circuit. Then, a current is passed from the output terminal corresponding to the light emitting diode drive signal. This current flows through the printed board 8 to the light emitting diode 3. When a current flows, the light emitting diode 3 at a position corresponding to this current emits light. The average value of the vehicle speed can be found by reading the scale corresponding to the position where the light emitting diode 3 is shining.

As a result, a new display which has never been available can be displayed. In addition, since the light emitting diodes are arranged along the outer circumference of the scale, this scale can be shared, and a smaller space is required than the case where another scale pattern is added and this information is displayed. Further, if the unit time of the average value is set to 1 hour as described above, it is possible to know how much distance the vehicle has traveled in 1 hour by looking at the scale indicated by the light emitting diode 3.

In this example, the unit time of the rotation speed average value is set to 1 hour as a reference, but it may be set to 10 seconds, for example, and the unit time can be set in a switching manner. In addition, the standard of 1 hour may be, for example, a case where an average value is calculated and expressed every 1 hour after setting, or a case where the average value is calculated and expressed one hour before the present running time. This means that, for example, when 1 hour and 5 minutes have passed after setting to calculate the average value, the calculation is performed from 5 minutes to 1 hour and 5 minutes after the setting, and the average value is shown. .

(Third Embodiment) The display device shown in FIG. 3 shows a case where the display device according to the present invention is applied to the interior of an automobile as in the first embodiment. In this example, the display unit 1 includes a dial 2, a dial plate 4, a scale pattern 11,21,31,41 formed on the dial 2 and the dial plate 4, and a central portion 11a of the scale pattern 11,21,31,41. 21
pointers 13, 23, 3 arranged on a, 31a, 41a
It is composed of 3,43. The arrangement relationship of this display device in the vehicle compartment is the same as that in the first embodiment, and therefore will be omitted.

The structure of the display device in this example will be described. In this example, as shown in the sectional view of FIG. 6, the transparent plate member 6 and the dial plate 4 form a hexahedron, and the dial plate 4 and the case member 5 are fixed to each other to form a frame. Two arc-shaped holes are provided on the front surface 4a of the dial plate 4 on the vehicle front side, and a vehicle speed display device and a rotation speed display device are attached to the holes, respectively. Further, a fuel amount display device is arranged on the left side of the vehicle speed display device, and a water temperature display device is arranged on the right side of the rotation speed display device. The arc-shaped scale patterns 11 and 41 and the fuel or water temperature marks 12 and 42 of the fuel display device and the water temperature display device are formed on the dial plate 4 by forming a hole in the shape. Further, respective pointer driving mechanisms 107 are provided between the dial plate 4 and the case member 5. Each pointer is attached to the drive shaft 107a of the pointer drive mechanism 107 through a hole formed at the center of each arc-shaped scale pattern.

The dial 2 of the vehicle speed display device and the rotation speed display device which is attached to the hole of the dial plate 4 has a transparent arc-shaped plate member provided with a black printing layer, and the respective scale patterns and unit patterns are provided with the black printing layer. It is formed by punching. A pointer drive mechanism 107 is provided between the dial plate 4 and the case member 5. And each guideline 13,
23, 33 and 43 are attached to the drive shaft 107a of the pointer drive mechanism 107 through holes formed in the central portions 11a, 21a, 31a and 41a of the arc-shaped scale patterns.

When the dial 2 is placed in the hole of the dial plate 4, the dial plate 4 is formed along the outer circumference of the scale pattern.
A plurality of holes are provided around the hole portion, and the light emitting diode 3 is arranged in each of the plurality of holes. FIG. 5 is an enlarged view of the vicinity of the light emitting diode 3. In this example, the color of the light emitting diode 3 is the same as that of the pointer 33, and when the pointer 33 is green, the light emitting diode 3 is green.

The electric terminals of the plurality of light emitting diodes 3 are connected to the arc-shaped printed board 8 arranged on the back surface of the dial 2 in order to pass the current from the drive circuit to the electric terminals 3e of the light emitting diode 3. The printed board 8 is electrically connected to the light emitting diode drive circuit. In this example,
The light emitting diode 3 located in a predetermined range near the tip portions 23a and 33a of the hands that rotate based on the drive system of the rotation speed display device and the speed display device among these is illuminated. Here, centering on the light emitting diode 3e pointed by the pointer 33, the light emitting diode 3e and the left and right light emitting diodes 3f and 3g are illuminated within a predetermined range.

The operation of the light emitting diode 3 is shown in the block diagram of FIG. 8 and is the same as that of the first embodiment. A predetermined detection signal is sent to the light emitting diode driving circuit 106, and the light emission calculated by the light emitting diode driving circuit 106. A current flows from the output terminal corresponding to the element drive signal. This current flows to the light emitting diode 3 via the printed board 8, and the light emitting diode 3 at a position corresponding to this current emits light.

As described above, the vicinity of the hands 23 and 33 can be made bright by illuminating the light emitting diode 3 located in a predetermined range near the tips 23a and 33a of the hands 23 according to the rotation of the hands 23. Thereby, the visibility of the display can be improved. In the present embodiment, the predetermined range is set to 3 of the light emitting diodes 3e, 3f, 3g.
Although the predetermined range is not limited to that shown in this example, for example, only the light emitting diode 3e may be illuminated, and the light emitting diode 3 on the left side of the light emitting diode 3e may be used.
You can make everything glow. Further, the color of the light emitting diode 3 need not be the same as that of the pointer.

(Fourth Embodiment) The display device shown in FIG. 5 shows a case where the display device of the present invention is applied to the interior of an automobile as in the first embodiment. In this example, the light emitting diode 3 is arranged not only on the outer circumferences of the scales 21 and 31 but also below the scales so as to surround the dial 2.
The arrangement relationship of this display device in the vehicle compartment is the same as that of the first embodiment, and the configuration of the display unit 1 is the same as that of the second embodiment, and therefore will be omitted.

As the structure of the display device in this example, the light-emitting diodes 3 of a plurality of colors are provided on the back surface (front side of the vehicle) of the dial plate 4. The light emitting diode 3 is in a position hidden by the dial plate 4 when viewed from the front driver's seat side. FIG.
Reference numeral 0 is a sectional view near the light emitting diode 3, and the dial plate 4 and the dial 2 are not in close contact with each other. A pointer driving mechanism 107 fixed to the case member 5 is provided on the back surface of the dial 2, and the dial 2 is fixed to the pointer driving mechanism 107.
Other structures are the same as those in the second embodiment.

The operation of this light emitting diode 3 is shown in the block diagram of FIG. Light emitting diode element drive circuit 10
In 6, a light emitting diode drive signal is generated, and a current flows from the output terminal corresponding to this signal. This current flows through the printed board 8 to the light emitting diode 3. As a result, the light emitting diode 3 at the corresponding position emits light. Here, in this example, the scale 2 of the rotation speed display device or the speed display device is used.
A plurality of color light-emitting diodes 3 provided on the outer circumference of 1, 31
Are arranged in red and orange above and blue and green below. When all the light emitting diodes 3 emit light in this arrangement,
The dial 2 is 2 as if the aurora was projected.
It will be an unprecedented new lighting that has a color mixture of more than various colors. In other words, the area above the dial 2 is red,
Since the lower part is blue, the middle of these is a yellow to yellow-green color shade, which enables illumination that looks like an aurora.

Further, for example, one set of red, blue, orange, and green light emitting diodes is provided, and one set is provided at each position where the light emitting diode 3 is provided. Then, by controlling the light emitting diode 3 that emits light as appropriate, the color displayed on the dial 2 can be gradually changed, and the illumination as if the aurora is moving can be provided. (Other Embodiments) In the first and second embodiments, a light emitting diode 3 is arranged around the scale of a turbo boost pressure gauge or the like, and the average value, maximum value, horsepower, fuel consumption, etc. of these are displayed by the light emitting diode 3. May be. Further, although the present invention is applied to the engine speed display in the first embodiment and to the vehicle speed instruction display in the second embodiment, it goes without saying that these two embodiments may be used simultaneously.

In the first embodiment and the like, an example of the driving system for each display device is shown, but the driving system is not limited to the driving system shown in the embodiments, and other systems generally used in automobiles and the like may be used. The effect in the present invention can be exhibited. In each of the first, third, and fourth embodiments, the method of constructing the dial 2, the light-emitting diode 3, and the dial plate 4 is given as a different example. However, in each of the first, third, and fourth embodiments, these 3 Any of the three listed structures may be used, and the third,
As described in the first embodiment, in the fourth embodiment, the black printing layer is not provided at the position where the light emitting diode 3 is arranged in the dial 2 and is left transparent to emit light to the back surface of the dial 2. It may be provided with the diode 3.

Although the light emitting diode 3 is used in each of the embodiments, a light emitting element other than the light emitting diode 3 is included, and the shape of the light emitting diode 3 may be round or triangular. Also,
Although the suitable color of the light emitting diode 3 is shown in each embodiment, the light emitting diodes 3 of colors other than these may be used.

[Brief description of drawings]

FIG. 1 is an overall view of a display unit 1 when the present invention is applied to a rotation speed scale 31.

FIG. 2 is a sectional view taken along the line AA in FIG.

FIG. 3 is a block diagram when displaying a rotation speed in FIG.

FIG. 4 is an overall view of a display unit 1 when the present invention is applied to a vehicle speed scale 21.

FIG. 5 shows a vehicle speed scale 21 and a rotation speed scale 31 according to the present invention.
It is a general view of the display unit 1 when applied to.

6 is a sectional view taken along the line BB in FIG.

7 is a partially enlarged view of the vicinity of the light emitting diode 3 in FIG.

FIG. 8 is a block diagram for displaying a vehicle speed and a rotation speed in FIG.

FIG. 9 shows a vehicle speed scale 21 and a rotation speed scale 31 according to the present invention.
It is a general view of the display unit 1 when applied to.

10 is a sectional view taken along the line CC in FIG.

FIG. 11 is a block diagram when performing illumination in FIG. 9.

[Explanation of symbols]

1 ... Display part, 2 ... Dial, 3 ... Light emitting diode, 11,
21, 31, 41 ... Scale pattern, 11a, 21a,
31a, 41a ... central part, 13, 23, 33, 43 ... pointer, 102 ... ignition switch, 104 ... sensor part, 105 ... pointer drive circuit, 106 ... light emitting diode drive circuit, 107 ... pointer drive mechanism, 107a ... drive shaft .

Front page continuation (72) Inventor Isao Miyagawa 1-1, Showa-cho, Kariya city, Aichi prefecture, Nihon Denso Co., Ltd. (72) Inventor, Shinsho Ishimaru, 1-1, Showa-cho, Kariya city, Aichi prefecture, Nihondenso Co., Ltd. (72) Inventor Masaya Tsuji 1-1, Showa-cho, Kariya city, Aichi prefecture

Claims (5)

[Claims] 1. An arc-shaped scale (11, 21, 31, 4)
Dial (2) provided with 1), the central portion (11) of the scale (11, 21, 31, 41)
a, 21a, 31a, 41a), and the hands (13, 23, 33, 43) that rotate and the scale (11,
A display unit (1) having a plurality of light emitting elements (3) provided on the outer periphery of (21, 31, 41), and a pointer drive mechanism (107) for rotating the pointers (13, 23, 33, 43). , A sensor unit (104) that generates a detection signal according to the amount of change in the display target, and a pointer drive signal that generates a pointer drive signal based on the detection signal from the sensor unit (104) and moves the pointer drive mechanism (107). A display device comprising a drive circuit (105), the light emitting element drive circuit (10) generating a light emitting element drive signal different from the pointer drive signal based on the detection signal.
6) is provided, and the light emitting element (3) which is turned on based on the light emitting element drive signal is different from the value of the scale (11, 21, 31, 41) indicated by the hands (13, 23, 33, 43). A display device for displaying the information, which is shared by the scales (11, 21, 31, 41). 2. The guideline (13, 2) is used as the different information.
The display device according to claim 1, which displays one of an average value, a minimum value, and a maximum value of a display amount of a display target instructed by (3, 33, 43) in a unit time. 3. An arc-shaped scale (11, 21, 31, 4)
Dial (2) provided with 1), the central portion (11) of the scale (11, 21, 31, 41)
a, 21a, 31a, 41a), and the hands (13, 23, 33, 43) that rotate and the scale (11,
A display unit (1) having a plurality of light emitting elements (3) provided on the outer periphery of (21, 31, 41), and a pointer drive mechanism (107) for rotating the pointers (13, 23, 33, 43). , A sensor unit (104) that generates a detection signal according to the amount of change in the display target, and a pointer drive signal that generates a pointer drive signal based on the detection signal from the sensor unit (104) and moves the pointer drive mechanism (107). A display device comprising a drive circuit (105), wherein a light emitting element drive circuit (106) for generating a light emitting element drive signal based on the detection signal is provided, and a tip of the pointer (13, 23, 33, 43). A display device characterized in that a light emitting element (3) located in a predetermined range near the part is turned on based on the light emitting element drive signal. 4. An arc-shaped scale (11, 21, 31, 4)
Dial (2) provided with 1), the central portion (11) of the scale (11, 21, 31, 41)
a, 21a, 31a, 41a) and a rotating pointer (13, 23, 33, 43), and a plurality of light emitting elements (3) provided on the outer periphery of the scale (11, 21, 31, 41). A display unit (1) having a pointer, a pointer drive mechanism (107) for rotating the pointers (13, 23, 33, 43), and a sensor unit (104) for generating a detection signal according to a change amount of a display target. And a pointer drive circuit (105) for generating a pointer drive signal based on a detection signal from the sensor section (104) to move the pointer drive mechanism (107), and a light emitting element drive signal for driving the light emitting element. Light emitting element drive circuit (106) for transmitting a signal to the light emitting element (3)
A light emitting element (3) of at least two different colors, the light emitting element (3) being turned on based on the light emitting element drive signal.
A display device characterized in that 5. The light emitting elements (3) are arranged in a substantially vertical direction of the dial, and the upper part of the light emitting elements (3) is constituted by a red or orange light emitting element (3), The display device according to claim 4, wherein the lower part is constituted by a blue or green light emitting element (3).