JP2009008488A - Vehicular display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular display device capable of expressing the sensation of three-dimensional depth and enhancing the decorative properties. <P>SOLUTION: The vehicular display device 10 includes a dial 20 having a character display part 35 except for a scale; pointers 21 rotating along the surface of the dial 20; a facing 23 surrounding the circumference of the dial 20; a decorative ring 25 decorated on the facing 23; and a light source 31 irradiating the dial 20 with a light. The vehicular display device 10 extends the facing 23 more forward, than the dial 20 and the pointers 21, arranges to overlap a light guide plate 22 having the scale 40 and a smoked glass 24 on the front face of the dial 20 and the pointers 21, and arranges the decorative ring 25 on the circumference of the light guide plate 22 and the smoked glass 24. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a display device for a vehicle having instruments such as a speedometer and a tachometer mounted on a vehicle such as an automobile.

  As an example of a conventional vehicle display device, as shown in FIG. 8, there is a vehicle display device 50 in which another smoke plate 52 having a high light transmittance is attached to the front surface of a smoke plate 51 having a low light transmittance (for example, , See Patent Document 1).

  In the vehicle display device 50 disclosed in Patent Document 1, a pointer 55 is disposed on a dial plate 54 of a speedometer 53, and a metal metal cover 56 around a smoke plate 51 that covers the dial plate 54. Is assembled. The dial plate 54 and the pointer 55 are configured to be displayed when the light emitting diode 57 emits light.

  For this reason, the conventional vehicle display device 50 has a black face display in which the dial plate 54 and the pointer 55 are not visually recognized through the smoke plate 52 and the smoke plate 51 when the light emitting diode 57 is turned off, and the light emitting diode 57 is turned on. Sometimes, the dial plate 54 and the pointer 55 are visually recognized through the smoke plate 52 and the smoke plate 51.

JP 2006-3341 A

  However, the conventional vehicular display device 50 disclosed in the above-mentioned Patent Document 1 hardly expresses a sense of depth, and thus there is room for improvement in terms of decorativeness.

  This invention is made | formed in view of the situation mentioned above, The objective is to provide the display apparatus for vehicles which can express a three-dimensional depth feeling and can improve a decorating property.

In order to achieve the above-described object, the vehicle display device according to the present invention is configured as follows.
(1) a dial having a character display portion excluding the scale,
A pointer that rotates along the surface of the dial,
A look around the dial,
A decorative ring mounted in return,
A light source, and
The vehicle display device, wherein the light guide plate having the scale and the smoked glass are disposed so as to overlap the dial plate and the front surface of the pointer.
(2) The vehicle according to (1), wherein the character display portion of the dial plate is configured to be displayed and printed by shading printing, and smoke printing is performed on a front surface of the shading printing. Display device.
(3) Each of the light guide plate, the pointer, and the dial has the light source,
The vehicle display device according to (1) or (2) above, wherein the light source on / off control is performed independently.
(4) The vehicular display device according to any one of (1) to (3), wherein a front glass that has been subjected to smoke treatment is disposed on a front surface of the smoked glass.
(5) The vehicle display device according to (4), wherein the light transmittance of the front glass is lower than the light transmittance of the smoked glass.

According to the configuration described in (1) above, the scale is displayed on the light guide plate, and the characters are displayed on the character display portion of the dial plate behind the light guide plate, so that a three-dimensional sense of depth can be expressed. Property can be remarkably improved.
Moreover, according to the structure as described in said (2), when the light source is not lighted, the character display part of a dial plate can be prevented from being displayed, and visibility can be improved.
And according to the structure as described in said (3), when the emitted light of a light source is given to a dial plate and a light guide plate, the scale of a light guide plate will be displayed ahead of the character display part of a dial plate, and smoke glass Since the thickness is different from the scale on the dial and the light guide plate, a distinctive three-dimensional effect can be produced. Furthermore, since the control of turning on / off the light sources is performed independently, the light sources can be turned on in a predetermined order. That is, when the light is not applied to the light guide plate, the pointer, and the dial plate, the character display portion of the dial plate and the speedometer pointer are not displayed through the smoke glass. And if the light emission of a light source is given to the character display part of a dial plate, the character display part of a dial plate will be displayed behind the scale display part of a light-guide plate. Thereby, a sense of depth with a change can be expressed according to the light emission order of the light sources.
According to the invention as described in said (4), a feeling of depth can be produced more conspicuously by arrange | positioning the surface glass to which the smoke process was performed on the front surface of smoke glass.
Furthermore, according to the invention described in (5) above, the light transmittance of the smoked glass close to the dial is made higher than the light transmittance of the front glass, thereby clearly displaying the character display portion of the dial. Can do.

  According to the vehicle display device of the present invention, it is possible to provide a vehicle display device that can enhance the decorativeness by expressing a three-dimensional sense of depth.

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

  1-7 is a figure for demonstrating one Embodiment of the display apparatus for vehicles which concerns on this invention. 1 is a partially broken external perspective view of a vehicle display device according to an embodiment of the present invention, FIG. 2 is a horizontal sectional view of the vehicle display device of FIG. 1, and FIG. 3 is a main part of the vehicle display device of FIG. FIG. 4 is a flowchart for explaining the operation of the vehicle display device of FIG. 1, and FIGS. 5 to 7 are front views for explaining the display state of the vehicle display device of FIG. Unless otherwise specified, the front and rear in the description refer to the direction viewed from the driver.

  As shown in FIG. 7, the vehicle display device 10 according to an embodiment of the present invention is configured as a combination meter including a speedometer 11, a tachometer 12, a fuel fuel gauge 13, and a water temperature gauge 14.

  Further, the vehicle display device 10 includes a shift indicator display unit 15, a pair of turn signal display units 16, and a pair of warnings outside the speedometer 11 and the tachometer 12 between the speedometer 11 and the tachometer 12. A display unit 17 and an LCD accumulator 18 including a trip meter are provided below the speedometer 11.

As shown in FIG. 1 or FIG. 2, the vehicular display device 10 has a dial 20, a speedometer pointer 21, a light guide plate 22, and a lookback on the front side of the case 19 around the speedometer 11. 23, smoked glass 24, decorative ring 25, and front glass 26, and on the rear side of case 19, wiring board 27, first light source 28, second light source 29, and third light source. 30, a fourth light source 31, a movement (inner unit) 32, and a back cover 33.
The area around the tachometer 12 has the same structure as the area around the speedometer 11. In the following description, the area around the speedometer 11 will be described, and the description around the tachometer 12 will be omitted or simplified.

  The case 19 has a dial plate mounting portion 34 on the front surface, and the dial plate 20 is assembled and fixed to the dial plate mounting portion 34.

  The dial 20 is not displayed with a scale, and has only a character display unit 35 such as numerical values. The dial 20 is displayed and printed by shading printing, and smoke printing is applied to the front surface thereof. ing. The dial plate 20 has a diffusion plate 36 on the back surface.

  The speedometer pointer 21 is formed of light-transmitting, for example, red or yellow polycarbonate resin or acrylic resin, and has an instruction portion 38 that protrudes from the circular center portion 37 to the dial 20 along the surface. .

  The light guide plate 22 is made of a transparent resin and has a light introducing portion 39 on a side portion of the dial plate 20, and extends from the light introducing portion 39 to the entire front surface of the dial plate 20 in front of the speedometer pointer 21. Are arranged. Further, the light guide plate 22 has a scale display portion 40 integrally formed on the dial plate 20 side, and the scale display portion 40 is formed in a radial shape with concave portions formed in a valley shape on the back surface.

  The turn 22 is attached to the outside of the dial attachment portion 34 in the case 19 so as to extend further forward than the dial 20 and the speedometer pointer 21.

  The smoke glass 24 has a predetermined thickness and is subjected to smoke treatment, and is assembled to the front end portion of the turn-back 23.

  The decoration ring 25 is assembled so as to surround the outer periphery of the smoked glass 24 and cover the edge of the front end portion of the turn-back 23.

  The front glass 26 is subjected to smoke treatment, and the light transmittance is set to be lower than the light transmittance of the smoke glass 24.

  The wiring board 27 has an electronic component 41 such as a microcomputer or an electronic circuit mounted on the rear surface, and a first light source 28, a second light source 29, a third light source 30, and a fourth LED, which are LEDs at predetermined positions on the front surface. Each of the light sources 31 is mounted.

  The first light source 28 is disposed so as to correspond to the light introducing portion 39 of the light guide plate 22, and emits light, thereby causing the light guide plate 22 to emit light with light incident from the light introducing portion 39.

  Further, the second light source 29 is arranged so as to correspond to the LCD accumulator 18 including a trip meter, and emits light to the accumulator 18 by emitting light.

  The third light source 30 is disposed so as to correspond to the circular center portion 37 of the speedometer pointer 21, and emits light to the speedometer pointer 21 by emitting light.

  The fourth light source 31 is disposed so as to correspond to the diffusion plate 36 of the dial plate 20, and emits light to the dial plate 20 through the diffusion plate 36 by emitting light.

  The movement 32 is, for example, a stepper motor type, and since the rotation shaft 42 is coupled to the circular central portion 37 of the speedometer pointer 21, the meter 32 (see FIG. 3) corresponds to the speed of the vehicle. The speedometer pointer 21 is rotated based on the given pulse signal.

  The back cover 33 covers the back surface of the wiring board 27 and is assembled to the case 19, and protects electrical components such as the wiring board 27 and the movement 32 incorporated in the case 19.

  As shown in FIG. 3, the first light source 28, the second light source 29, the third light source 30, and the fourth light source 31 are composed of light emitting diodes and emit light when energized. The light sources 28, 29, 30, and 31 are electrically connected to predetermined ports of a meter controller 43 including, for example, a microcomputer including a CPU, RAM, ROM, and the like. Thus, the timing of light emission, that is, turn-off / light-on is controlled independently.

The meter controller 43 is supplied with electric power of a voltage of 5 V from the battery (B) via the power supply circuit 44 and the Vcc port. The power supply circuit 44, the with supplying power in parallel to the light source 28, 29, 30, 31 (i.e., a predetermined voltage is applied to _{V M),} is connected to the RST port and SLP port of the meter controller 43 For this reason, power management of the reset state and the sleep state of the meter controller 43 is performed.
The meter controller 43 is connected to an ignition switch (IGN) via the I / O interface 45, and is started when the ignition switch is turned on.

  Next, the display operation of the vehicle display device 10 will be described with reference to FIGS. 4, 5, 6, and 7. The operation shown in FIG. 4 is performed by the meter controller 43.

  First, standby is performed until it is determined that the ignition switch is turned on (that is, NO in S101 shown in FIG. 4).

  At this time, as shown in FIG. 5, since the first light source 28, the second light source 29, the third light source 30, and the fourth light source 31 are not energized, only the decorative ring 25 is visually recognized from the front glass 26. Thus, the dial plate 20 is not displayed.

  When it is determined that the ignition switch is turned on (that is, YES in S101 shown in FIG. 4), the meter controller 43 energizes the first light source 28, the second light source 29, and the third light source 30 simultaneously. In this way, the timing of light emission is measured (S101 → YES → S102 shown in FIG. 4).

  At this time, as shown in FIG. 6, the first light source 28 emits light to cause the light guide plate 22 to emit light with the light incident from the light introducing portion 39, and the second light source 29 emits light to thereby add the accumulator 18. Is emitted, and the third light source 30 emits light, whereby the speedometer pointer 21 is emitted. Thereby, the scale display part 40 of the light guide plate 22 is displayed on the inner peripheral part of the decoration ring 25 behind the front glass 26, and the speedometer pointer 21 is displayed at a position away from the scale display part 40, and shifted. An indicator display unit 15, a pair of turn signal display units 16, and a warning display unit 17 are displayed. At this time, since the dial plate 20 is not displayed yet, the character display part 35 of the dial plate 20 is not confirmed.

  After the ignition switch is turned on, standby is performed again until a predetermined time elapses (that is, NO in S103 shown in FIG. 4). For this reason, the meter controller 43 maintains a state in which the first light source 28, the second light source 29, and the third light source 30 are energized for a certain period of time.

  When a predetermined time has elapsed since the ignition switch was turned on (ie, S103 shown in FIG. 4), the meter controller 43 controls the fourth light source 31 to be energized to emit light (ie, FIG. 4). S104).

  As shown in FIG. 7, in addition to the 1st light source 28, the 2nd light source 29, and the 3rd light source 30, the 4th light source 31 is light-emitted, and the character display part 35 of the dial 20 is displayed. As a result, the scale display portion 40 of the light guide plate 22 is displayed on the inner peripheral portion of the decorative ring 25 behind the front glass 26, and the speedometer pointer 21 and the dial plate 20 are positioned away from the scale display portion 40. A character display unit 35 is displayed, and a shift indicator display unit 15, a pair of turn signal display unit 16, and a warning display unit 17 are displayed.

  As described above, according to the vehicle display device 10 of the present embodiment, the scale is displayed on the scale display 40 of the light guide plate 22, and the characters are displayed on the character display portion 35 of the dial plate 20 behind the scale. It is possible to express a three-dimensional sense of depth and enhance the decorativeness.

  Further, according to the vehicle display device 10 of the present embodiment, when the first light source 28, the second light source 29, and the third light source 30 are turned on, the character display portion 36 of the dial plate 20 can be prevented from being displayed. Display expression by order can be achieved, and the decorativeness can be further enhanced.

  Further, according to the vehicle display device 10 of the present embodiment, the light guide plate 22 is provided with the light emitted from the first light source 28 and the dial plate 20 is provided with the light emitted from the fourth light source 31. The scale display section 40 of the light guide plate 22 is displayed in front of the character display section 35, and the thickness of the smoked glass 24 and the scale on the dial plate 20 and the light guide plate 22 are different from each other. Can be produced.

  Further, according to the vehicle display device 10 of the present embodiment, the front glass 26 that has been subjected to the smoke process is arranged on the front surface of the smoke glass 24, so that a sense of depth can be further emphasized.

  Further, according to the vehicle display device 10 of the present embodiment, the light transmittance of the smoke glass 24 close to the dial plate 20 is higher than the light transmittance of the front glass 26, so that the character display portion 35 of the dial plate 20. Can be clearly displayed.

  Further, according to the vehicle display device 10 of the present embodiment, the light guide plate 22, the accumulator 18, the speedometer pointer 21, and the dial plate 20 are not turned on by the light emitted from the light sources 28, 29, 30, and 31. Sometimes, the character display portion 35 of the dial 20, the accumulator 18, and the speedometer pointer 21 are not displayed through the smoke glass 24. When the light emitted from the fourth light source 31 is applied to the character display unit 35 of the dial plate 20, the character display unit 35 of the dial plate 20 is displayed behind the scale display unit 40 of the light guide plate 22. Thereby, a sense of depth with change can be expressed according to the light emission order of the light sources 28, 29, 30, 31.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimension, numerical value, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  For example, the lighting order of the light sources is not limited to the above order, and the pointer may be displayed simultaneously with the dial, or the light emission may be finally turned on to the light guide plate.

  Further, the smoked glass and the front glass may be subjected to an antireflection treatment according to the vehicle type to be applied, vehicle conditions, and the like, and may have the same light transmittance. When the light transmittance is made equal, component materials can be shared and product cost can be reduced.

  Furthermore, a character display unit may be provided on the light guide plate, and a scale display unit may be provided on the dial plate. Then, a scale can be displayed behind the character display unit.

1 is a partially broken external perspective view of a vehicle display device according to an embodiment of the present invention. FIG. 2 is a horizontal sectional view of the vehicle display device of FIG. 1. It is a principal part circuit diagram of the display apparatus for vehicles of FIG. It is a flowchart explaining operation | movement of the display apparatus for vehicles of FIG. It is a front view at the time of light extinction explaining the display state of the display apparatus for vehicles of FIG. It is a front view at the time of dial light extinguishing explaining the display state of the display apparatus for vehicles of FIG. It is a front view at the time of dial lighting explaining the display state of the display apparatus for vehicles of FIG. It is sectional drawing of the conventional display apparatus for vehicles.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Display apparatus for vehicles 20 Dial 21 Speedometer (pointer)
22 Light guide plate 23 Reflection 24 Smoke glass 25 Decoration ring 26 Front glass 28 First light source (light source)
30 Third light source (light source)
31 Fourth light source
35 Character display section 40 Scale display section (scale)

Claims (5)

A dial having a character display portion excluding the scale,
A pointer that rotates along the surface of the dial,
A look around the dial,
A decorative ring mounted in return,
A light source, and
The vehicle display device, wherein the light guide plate having the scale and the smoked glass are disposed so as to overlap the dial plate and the front surface of the pointer.   The vehicle display device according to claim 1, wherein the character display portion of the dial is displayed and printed by shading printing, and smoke printing is performed on a front surface of the shading printing. The light guide plate, the pointer, and the dial plate each have the light source,
The vehicle display device according to claim 1, wherein the control of turning on / off the light source is performed independently.   The vehicular display device according to any one of claims 1 to 3, wherein a front glass subjected to a smoke process is disposed on a front surface of the smoke glass.   The vehicle display device according to claim 4, wherein the light transmittance of the front glass is lower than the light transmittance of the smoked glass.

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