WO2018220880A1 - Automobile display device - Google Patents

Abstract

Provided is a display device that performs control to synchronize the turning timing of an analog pointer with the light emission timing of light emission by EL layers at a plurality of consecutive segments, thus making it possible to clearly and effectively display the operation state of the automobile in a more natural manner. A first displaying means that is made of a transparent material and displays the operation state of the automobile through the light emission of the EL layers in each segment is superimposed in front of a second displaying means that displays the operation state of the automobile via a pointer and an index part. Display is controlled such that the display timing of the first displaying means and the display timing of the second displaying means are synchronized with each other.

Description

Automotive display device

The present invention relates to a display device that is mounted on, for example, a dashboard of an automobile and displays an operating state of the automobile.

Conventionally, an automobile display device that has been installed as an optional device on the dashboard of an automobile has been developed. For example, it measures and displays the status of various items such as intake pressure, water temperature, oil temperature, and hydraulic pressure related to engine operation. However, this is disclosed in, for example, Japanese Patent Application Laid-Open No. 2000-71814.

However, since these automobile display devices are necessary for various items as described above, it is necessary to mount a plurality of display devices, but since they are mounted on the dashboard of an automobile, the front view is reduced. In view of safety, it was not preferable to mount a plurality of display devices. In addition, a display device that can display the status of various items has been developed. However, it is troublesome because a display item changing operation is required.

Therefore, the present inventor has invented a display device that can instantly check the operating state of a vehicle in a plurality of items without mounting a plurality of display devices (Japanese Patent Application No. 2016-226327). The display device is composed of a transparent material, an EL layer disposed between a pair of transparent electrodes, and a first display plate that displays the operating state of the automobile by light emission of the EL layer, and a rotation disposed on the surface. A second display panel that displays the operating state of the automobile with an analog pointer and an indicator unit, and a housing that supports the two display panels, wherein the first display panel is a part of the second display panel. It is located in the front and is supported by the housing.

With this configuration, the pointer and index of the second display panel can be visually recognized through the first display panel. In other words, since the superimposed display is possible, the operating state of the automobile can be confirmed in a plurality of items with one display device. Further, for example, regarding the operating state of supercharging pressure, which is a display item, the first The boost pressure display by the light emission of the EL layer of the display panel is constituted not only by the numerical value but also by the light emission in a plurality of continuous segments, and is synchronized with the rotation of the boost pressure display by the analog pointer of the second display panel It has also been proposed to display the operating state of the car more clearly and stunningly by displaying it like this.

However, while the vehicle is running, the analog pointer may be affected by external effects such as centrifugal force, so the rotation timing of the analog pointer and the light emission timing of the segment are not linked as in the above-mentioned idea, When the movement is deviated, there is a possibility that it may be difficult to see or feel uncomfortable and an accurate numerical value cannot be confirmed.

JP 2000-71814 A

Therefore, the present invention controls the light emission timing by the EL layer light emission in a plurality of continuous segments and the rotation timing of the analog pointer to synchronize, and displays the operating state of the automobile more clearly and stunningly without a sense of incongruity. It is an object of the present invention to provide a display device that can be used.

In order to solve the above-mentioned problems, the present invention is made of a transparent material, and an EL layer is continuously arranged between a plurality of segments between a pair of electrodes. The first display means for displaying, the second display means for displaying the operating state of the vehicle by the pointer rotated by the stepping motor, and the indicator portion arranged on the surface, and the first display means, the second display means A casing that supports both display means so as to be superimposed in front of the display means, and an operating state of the automobile is detected, and based on the operating state, the first display means and the second display means Control means for controlling superimposed display, wherein the control means is a display timing by the first display means in the superimposed display of at least one operating state of the automobile. Display timing by serial second display means and controls to be displayed in sync.

The plurality of segments are continuously arranged so as to overlap with an arcuate movable range at a tip portion of the pointer, and control is performed so as to emit light in synchronization with the rotation of the pointer.

The second display panel is detachably supported by the housing.

According to the present invention, since the display timing by the first display unit and the display timing by the second display unit are displayed in synchronization in a kind of superimposed display of the operation state, It can be displayed clearly and stunning without any sense of incongruity.

The plurality of segments are continuously arranged so as to overlap the arcuate movable range at the tip of the pointer, and emit light in synchronization with the rotation of the pointer, so that it is displayed more clearly and stunningly. Can do.

Further, according to the present invention, the second display board is detachably supported on the housing, so that the second display board can be replaced with a second display board related to other items. Can be displayed.

1 is a configuration diagram of a display device for an automobile according to the present invention. Block diagram regarding the display device, control box and sensor for the vehicle Front view and side view of the first display means Side view and rear view of the first display means Cross section of the housing Configuration diagram of the automobile display device 2 Side view and rear view of display device for automobile Front view of operating state of display device for automobile 1 Front view of operating state of display device for automobile 2 Flow diagram showing the control flow of the automotive display device

Hereinafter, embodiments of the present invention will be described with reference to FIGS.

In FIG. 1, 2 is a 1st display means, The substantially circular 1st display board 3 formed with the transparent material which arranged the segment 4 which light-emits by the transparent electrode layer and inorganic EL layer which are demonstrated later, It is comprised from the housing | casing 5 which accommodates the flexible cables 21 and 22 and the board | substrate 24 for supplying electric power to the said electrode layer, and is equipped with the base 6 below. Reference numeral 7 denotes second display means, which is a second display plate 8 having a substantially circular shape with a rotating pointer 10 and a plurality of indicators 11 arranged on the surface, and a rotation of the pointer 10 using a stepping motor (not shown). Consists of means.

The second display means is engaged with the housing 5 by the engaging means 13 provided therebelow, and the fitting frame 12 is connected to the first display plate 3 and the front outer peripheral portion 9 of the second display means. The first display means 2 and the second display means 7 are integrated via the casing 5 by being engaged with the engaging means 14 provided below the casing 5 while being housed inside. The Note that the second display means 7 can be attached to and detached from the housing 5.

FIG. 2 shows a means configuration for controlling and operating the automobile display device 1 of the present invention. In a control box 15 equipped with a control means (CPU) 16, the control means 16 is installed inside the automobile. Numerical information such as various temperatures and pressures sent from the various sensors 18a to 18e is acquired, and the display device 1 is operated based on the information to display. Further, since the first display means 2 can display various items by the segment 4, it is possible to arbitrarily select items to be displayed by using the controller 17 equipped in the control box 15. Can do. Since the second display means 7 has items to be displayed in advance, the controller 17 cannot change the items, but information on at least two items is selected by the first display means 2. It can be displayed at the same time. In addition, the second display means 7 is prepared with various items and exchanged, so that there are various types of items to be displayed.

FIG. 3 shows a structure of means for causing the first display means 2 to emit light and display in the segments 4a and 4b by the inorganic EL layer disposed on the first display plate 3. FIG. Although not shown, in the formation of the first display panel 3, a first transparent electrode layer and a second transparent electrode layer (a pair of electrode layers) constituted by a segment unit between two transparent plates made of resin or glass are used. ), And a transparent insulating layer and an inorganic EL layer provided therebetween, and when power is supplied to the first transparent electrode layer and the second transparent electrode layer composed of segment units via a transparent power supply wiring (not shown), While performing control for each segment unit, power is supplied by a power supply unit (not shown) to perform display by light emission in a predetermined segment.

As shown in the figure, the segment 4 is formed with a character segment 4a and a graphic segment 4b. All segments 4a and 4b such as display items required in advance are formed on the first display board 3. Keep it.

Transparent feed wires are connected to the first transparent electrode layer and the second transparent electrode layer configured in segment units, respectively, and flat cables 21 and 22 for feeding are connected to each other via a connector 23. It is connected to the substrate 24. A re-stable 26 is connected to the end of the substrate 24.

4 is a side view and a rear view of the first display means 2, and FIG. 5 is a sectional view of the housing 5. Above the housing 5, an engagement hole 33 for engaging the engagement means 14 and guide grooves 31 for engaging the second display means 7 are provided at two positions on the left and right.

The first display panel 3 is fixed to the front of the housing 5, and the flat cables 21 and 22, the connector 23, and the substrate 24 described above are accommodated in the housing 5. A cable protruding from the hole and wired from the control box 15 is connected to control display by light emission of the first display panel 3.

6 and 7 show a state in which the second display means 7 and the fitting frame 12 are fitted via the first display means 2, and the protrusion 32 of the second display means 7 is inserted into the guide groove 31. The engagement means 14 is engaged with the engagement hole 33 by moving forward while making contact with the engagement hole 33. Thereafter, the fitting frame 12 is fitted to the front outer peripheral portion 9 from the front, and the first display means 2 and the second display means 7 are integrated.

The first display board 3 and the second display board 8 are substantially circular and have substantially the same size, and the first display board 3 can be tightly accommodated in the front outer peripheral portion 9 of the second display means 7. The display device 1 can be made compact and can have a minimum size.

A re-stable 34 to which another cable wired from the control box 15 is connected is formed at the center of the back surface of the display device 1, and the pointer of the second display board 8 is provided in the same manner as the first display means 2. Controls display by rotation.

FIG. 8 is a front view showing the operating state of the automotive display device 1 of the present invention in a state where the first display plate 3 is superimposed in front of the second display plate 8. The second display plate 8 of the display device 1 for an automobile displays the oil pressure of the engine oil. When the stepping motor is actuated by a signal from the control box 15, the pointer 10 is rotated, and the oil pressure (OIL. P: 440 kPa). Further, the first display panel 3 is set to display the oil temperature of the engine oil by the setting of the controller 17, and similarly, the light emitting unit 41 a by the inorganic EL element in the predetermined segment 4 b by the signal from the control box 15. The oil temperature (OIL.T: 100 ° C.) is indicated.

Above the first display panel 3 is formed a light emitting portion 41a of the letter “OIL.T” indicating that the display setting is oil temperature, and the oil temperature is 100 degrees in the center. A light emitting part 41a having a character of “100 ° c” indicating the oil temperature is formed, and the oil temperature is displayed to the driver. The light emitting unit 41a emits light in a yellow color. For example, even if the light emitting unit 41a is superimposed on the pointer 10, the light can be transmitted and the movement of the pointer 10 can be confirmed. Can be confirmed.

[Correction 29.11.2017 under Rule 91]
FIG. 9 is a front view showing another aspect of the automotive display device 1 of the present invention. The aspect of the second display panel 8 and the aspect of the character light emitting portion 41a on the first display panel 3 are the same as those of the aspect of FIG. The light emitting portion 41b emits light, and the light emitting portion 41b is formed by emitting 4b01 to 4b12 among 30 rectangular segments 4b01 to 4b30 that are continuous in an arc shape. The angle of the entire arc composed of 30 segments is 270 °, and a hydraulic index (0 to 12.0 × 100 kPa) is arranged on the arc. Each segment 4b01 to 4b30 is independently provided with a transparent electrode layer and a transparent power supply wiring.

The setting of the control means 16 of the control box 15 causes the pointer 10 to rotate according to the displacement of the oil pressure of the engine oil, and the light emission or extinction of the second display board 8 is controlled. Synchronize with movement. By the movement of the light emitting unit 41b due to light emission or quenching, the driver can more clearly confirm the displacement of the hydraulic pressure.

Specifically, when the hydraulic pressure value of the engine oil is first detected by the hydraulic pressure sensor 18b, the control unit 16 acquires the hydraulic pressure value in the control box 15, and the rotation angle as a drive signal converted based on the numerical value. By outputting information and rotation speed information to the stepping motor, the pointer 10 is driven. In this case, the rotation angle is (step angle [0.72 °] × number of pulses), and the rotation speed is (step angle [0.72 °] / 360 × pulse speed: 500 Hz × 60 (S)), For example, when the hydraulic pressure value is 440 kPa shown in FIG. 9, the pointer rotates by 108 ° by (0.72 ° × 150 pulses) to indicate 440 kPa. Further, since the speed is 0.72 / 360 × 500 Hz × 60 = 60 r / min, one rotation is performed in one second, and the hydraulic pressure index (4.4 × 100 kPa) is formed in 0.3 second after the pointer starts rotating from the starting point. ), Stop at a position of 108 °. The time from the start point of the hydraulic index to the position of the end index (12.0 × 100 kPa) is 0.75 seconds.

[Correction 29.11.2017 under Rule 91]
Next, a method for synchronizing light emission or quenching in the segment 4b of the first display panel 3 with the movement of the pointer 10 will be described. As described above, 30 rectangular segments 4b01 to 4b30 are arranged between the start point and the end point of the hydraulic pressure index, and a pair of transparent electrode layers are disposed on each of the rectangular segments 4b01 to 4b30. 1st transparent power supply wiring to 30th transparent power supply wiring) are connected. Each of the segments 4b01 to 4b30 is continuous in units of 9 °, which is 12.5 times the step angle, and is arranged so as to overlap the trajectory of the pointer 10, that is, the circumference. The control unit 16 outputs a drive signal converted based on the hydraulic pressure value, is fed to the segment 4b by the feeding unit, and sequentially emits or extinguishes in synchronization with the rotation of the pointer 10. Note that the voltage is supplied by the power supply means through the transparent power supply wiring and the segment 4b is emitted, but the timing of sequential power supply to each power supply wiring is set by the control means 16 at intervals of 0.025 seconds. .

FIG. 10 is a flowchart showing a control flow for synchronizing the movement of the pointer 10 and the light emission of the segment 4b from the initial state. When the initial hydraulic pressure information (numerical value = 440 kPa) detected by the hydraulic pressure sensor 18b is input to the control means 16, the numerical value is converted into rotational angle information and rotational speed information as described above, and the stepping motor is used as a drive signal. Output to the power supply means. The stepping motor rotates at a speed of 60 r / min based on the converted number of pulses (= 150), and stops the pointer at the position of the index 11 of the hydraulic numerical value.

[Correction 29.11.2017 under Rule 91]
On the other hand, the light emission of the segment 4b is performed by the control means 16 outputting a power supply signal to the power supply means based on the initial hydraulic pressure information. Specifically, since each segment 4b is 12.5 times the step angle, the control means 16 uses the transparent power supply wiring ((12)) based on the numerical value (= 12) obtained by dividing the number of pulses by 12.5. 1st transparent power supply line to 12th transparent power supply line), and the power supply means sequentially supplies power from the first transparent power supply line to the twelfth transparent power supply line at a set interval of 0.025 seconds. The light is sequentially emitted at ˜4b12, and the light emission position of the earliest segment 4b12 is the same position as the pointer 10. The light emission timings of the segments 4b01 to 4b12 are synchronized with the rotation speed of the pointer 10.

When the secondary hydraulic pressure information from the sensor is input, the control means 16 determines the difference between the stop position and the new stop position, and the pointer 10 is moved from the stop position to the new index 11 at the rotational speed. Move to the position. On the other hand, regarding the light emission of the segment 4b, the control means 16 determines a new transparent power supply wiring and performs light emission again. At this time, when the secondary hydraulic pressure is lower than the initial hydraulic pressure, the first segment 4b is extinguished sequentially, and when it is higher, the newly determined segment is sequentially emitted from the first segment 4b. Synchronize with 11 movements. Note that the input interval of the hydraulic pressure information is set at an equal interval of 0.75 seconds until a maximum of 1,200 kPa is displayed, but may be input every time the processing is completed by the control means 16.

In addition, in the display device for an automobile, the second display plate is detachably supported on the housing, so that it can be replaced with a second display plate related to other items. By changing the setting with the controller 17, the display timing by the pointer 10 and the display timing of the segment 4b can be displayed in synchronization with items other than the hydraulic pressure.

As described above, in the present invention, the display timing of the first display means and the display timing of the second display means are displayed in synchronization in a kind of display of the operating state. The operating state of the automobile can be displayed more clearly and stunningly without a sense of incongruity.

Further, the plurality of segments are continuously arranged so as to overlap with the arcuate movable range of the tip of the pointer, and emit light in synchronization with the rotation of the pointer, so that it is displayed more clearly and stunningly. Do

In addition, the second display board is detachably supported by the housing, so that it can be exchanged with a second display board for other items. Corresponding to the items, the display timing by the first display means and the display timing by the second display means can be displayed in synchronization.

Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

For example, a digital display frame may be provided on the second display board 8, and numerical values may be displayed for other items. Similarly, numerical values of a plurality of items can be displayed on the first display means 2, and the states of three or more items can be confirmed simultaneously by these modes.

Further, the rotation angle and rotation speed of the stepping motor described above, the number of segments 4b, and the like may be changed as long as the above-described numerical values can be synchronized.

Moreover, although inorganic EL was used as a light emitting element, you may use organic EL.

DESCRIPTION OF SYMBOLS 1 Automobile display apparatus 2 1st display means 3 1st display board 4 (4a, 4b) Segment 5 Case 6 Base 7 2nd display means 8 2nd display board 10 Pointer 11 Index 13, 14 Engagement Means 15 Control box 16 Control means 17 Controller 18 Sensors 21 and 22 Flexible cable 24 Substrate 26 and 34 Re-stable 31 Guide grooves 41a and 41b Light emitting portion

Claims (3)

It is made of a transparent material, and an EL layer is arranged between each pair of electrodes, and is rotated by a stepping motor and first display means for displaying the operating state of the automobile by light emission of the EL layer for each segment. A second display means for displaying the operating state of the vehicle by a pointer to be performed and an indicator portion arranged on the surface, and the first display means so as to be superimposed in front of the second display means. A vehicle display comprising: a housing that supports the means; and a control unit that detects an operating state of the vehicle and controls superimposed display by the first display unit and the second display unit based on the operating state. In the apparatus, in the superimposed display of at least one operating state of the automobile, the control means has the same display timing by the first display means and the display timing by the second display means. Automotive display device and controls to be displayed. The plurality of segments are continuously arranged so as to overlap with an arcuate movable range at a tip end portion of the pointer, and controlled to emit light in synchronization with the rotation of the pointer. The automobile display device described. The automobile display device according to claim 1, wherein the second display panel is detachably supported by the housing.

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