JP2003255342A - Display device for vehicle and its meter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device for vehicle which enables display having a metallic feeling and a feeling seemingly high-ranking and to provide a meter applied by the same. <P>SOLUTION: This display device 1 for vehicle consists of a metal plate 10, a transmissive illumination device 20 which is arranged in front of the metal plate 10 and illuminates the metal plate 10 and a transmission type liquid crystal display panel 30 which is arranged in front of the transmissive illumination device 20 and is backlighted by the light reflected from the metal plate 10 and passing through the transmissive illumination device 20. Therefore, the liquid crystal display having a metallic feeling and a feeling seemingly high- ranking can be obtained. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle display device and a meter equipped with the display device.

[0002]

2. Description of the Related Art Generally, a vehicle is equipped with a pointer type display device such as a speedometer for indicating a measured value of a vehicle speed or a tachometer for indicating a measured value of an engine speed. Such a display device includes a dial having a scale and indicators such as numbers, letters or symbols on its surface, a pointer arranged on the front of the dial, and an internal unit that drives the pointer according to the measured amount. And a wiring board to which the circuit pattern is provided and to which the inner unit is fixed.

[0003]

By the way, in such a display device, there is a display device that gives a high-class feeling by sticking to the design and material of the dial plate itself, and one of them is a metal character. There is a display device using a board.

As a vehicle combination meter, there is a trinocular meter including a speedometer, a tachometer, and a liquid crystal display panel arranged between the speedometer and the tachometer. In such a trinocular meter, when the above-mentioned metal dial plate is used as the dial plate of the speedometer and the tachometer, the display of the liquid crystal display panel does not match the metallic feeling and high-class feeling of the metal dial plate. It was displayed.

In view of the above problems, it is an object of the present invention to provide a display device for a vehicle and a meter to which the display device for a vehicle, in which a display having a metallic feeling and a high-class feeling can be obtained.

[0006]

The invention according to claim 1 made in order to solve the above-mentioned problems, comprises a metal plate and a transmissive lighting device which is arranged in front of the metal plate and illuminates the metal plate. And a transmissive liquid crystal display panel which is arranged in front of the transmissive lighting device and which is backlit by light reflected from the metal plate and passing through the transmissive lighting device. Exist in.

According to the first aspect of the invention, the vehicle display device is arranged on the metal plate and the front surface of the metal plate, and the transmissive lighting device for illuminating the metal plate and the front surface of the transmissive lighting device. And a transmissive liquid crystal display panel that is backlit with light that is reflected from the metal plate and passes through the transmissive lighting device, so that a liquid crystal display with a metallic feel and a high-class feel can be obtained.

In order to solve the above-mentioned problems, the invention according to claim 2 is characterized in that the transmissive lighting device comprises a light guide plate, a light source, and a reflector for making the light of the light source enter the light guide plate. The light guide plate has one surface facing the metal plate formed into a flat surface and a prism array formed on the other surface facing the transmissive liquid crystal display panel. The vehicle display device described above exists.

According to the second aspect of the present invention, the transmissive lighting device comprises a light guide plate, a light source, and a reflector for making the light of the light source enter the light guide plate, and the light guide plate is opposed to the metal plate. Since the surface of is formed into a flat surface and the prism array is formed on the other surface facing the transmissive liquid crystal display panel, all the light from the light source can be incident on the metal plate as flat light. The plane light reflected by the plate is
Useful for backlighting transmissive liquid crystal display panels.

According to a third aspect of the present invention made to solve the above-mentioned problems, the transmissive illumination device includes a light guide plate, a light source, and a reflector for making the light of the light source incident on the light guide plate. 2. The light guide plate, wherein one surface facing the metal plate is matt-processed and the other surface facing the transmissive liquid crystal display panel is formed into a flat surface. The vehicle display device described above exists.

According to the third aspect of the present invention, the transmissive lighting device comprises a light guide plate, a light source, and a reflector for making the light of the light source enter the light guide plate, and the light guide plate is opposed to the metal plate. The surface of the light-transmissive liquid crystal display panel has a matte treatment and the other surface facing the transmissive liquid crystal display panel is formed into a flat surface. In addition to being guided to, it can be reflected by the metal plate to enter the transmissive liquid crystal display panel metal plate,
Useful for backlighting transmissive liquid crystal display panels.

In order to solve the above-mentioned problems, the invention according to claim 4 is characterized in that a hairline, a diaphragm,
The vehicle display device according to any one of claims 1 to 3, wherein at least one of the processes including bending is performed.

According to the fourth aspect of the invention, since the metal plate is subjected to at least one of the processes including hairline, drawing, and bending, the metallic feeling of the background of the liquid crystal display is emphasized. It

In order to solve the above-mentioned problems, the present invention according to claim 5 provides a metal mesh plate, a transmissive lighting device which is arranged in front of the metal mesh plate and illuminates the metal plate, and the transmissive lighting. A transmissive liquid crystal display panel disposed on the front surface of the device and having a display surface that is backlit by the light reflected from the metal mesh plate and passing through the transmissive lighting device, the metal mesh plate and the transmissive lighting device. A display unit arranged on the back side of the metal mesh plate so that the display can be seen at a position overlapping with the display surface of the transmissive liquid crystal display panel through the display device for a vehicle. Exist in.

According to a fifth aspect of the present invention, a vehicle display device includes a metal mesh plate, a transmissive lighting device disposed on the front surface of the metal mesh plate to illuminate the metal plate, and a front surface of the transmissive lighting device. And a transmissive liquid crystal display panel having a display surface that is backlit by light that is reflected from the metal mesh plate and passes through the transmissive lighting device, and a transmissive liquid crystal display through the metal mesh plate and the transmissive lighting device. Since the display unit is arranged on the back side of the metal mesh plate so that the display can be seen at a position overlapping with the display surface of the panel, a liquid crystal display with a metallic feeling and a high-class feeling can be obtained, and at the same time, a transmissive liquid crystal display. Since the display panel and the display device are integrated, the display space is reduced and the size can be reduced.

According to a sixth aspect of the present invention, which is made to solve the above-mentioned problems, when the transmissive liquid crystal display panel is in an operating state, the transmissive illumination device is turned on and the display unit is in an inoperative state. 6. The vehicle display device according to claim 5, further comprising control means for turning off the transmissive illumination device and deactivating the transmissive liquid crystal display panel when the display unit is in an operating state.

According to the present invention, the transmissive lighting device is turned on and the display unit is deactivated when the over-type liquid crystal display panel is in operation, and the transmissive illumination device is in operation when the display unit is in operation. Since the control means for turning off the light and for inactivating the transmissive liquid crystal display panel is provided, the display by the transmissive liquid crystal display panel and the display by the display device can be switched and displayed at the same location.

The invention according to claim 7 made in order to solve the above-mentioned problems, a metal mesh plate, a transmissive lighting device arranged on the front surface of the metal mesh plate for illuminating the metal plate, and the transmissive lighting. A transmissive liquid crystal display panel having a first display surface and a second display surface disposed on the front surface of the device, the backlight being backlit by the light reflected from the metal mesh plate and passing through the transmissive lighting device;
A display unit arranged on the back side of the metal mesh plate so that the display can be seen at a position overlapping the first display surface of the transmissive liquid crystal display panel through the metal mesh plate and the transmissive lighting device. And a light source unit disposed between the display unit and the metal mesh plate and backlighting the second display surface of the transmissive liquid crystal display panel.

According to a seventh aspect of the present invention, a vehicle display device includes a metal mesh plate, a transmissive lighting device disposed on the front surface of the metal mesh plate to illuminate the metal plate, and a front surface of the transmissive lighting device. And a transmissive liquid crystal display panel having a first display surface and a second display surface that are backlit by light that is reflected from the metal mesh plate and passes through the transmissive lighting device, and the metal mesh plate and the transmissive panel. A display unit disposed on the back side of the metal mesh plate and disposed between the display unit and the metal mesh plate so that the display can be seen at a position overlapping the first display surface of the transmissive liquid crystal display panel through the lighting device. , A light source unit for backlighting the second display surface of the transmissive liquid crystal display panel, so that a liquid crystal display having a metallic feeling and a high-class feeling can be obtained. Since both with integrated transmission type liquid crystal display panel display device, the display space is reduced,
Miniaturization is possible. Further, different displays can be performed on the first display surface and the second display surface of the transmissive liquid crystal display panel.

In order to solve the above-mentioned problems, the invention according to claim 8 is such that a step is formed on the metal mesh plate by bending, and the step is formed through the transmissive illumination device. 8. The vehicle display device according to claim 7, wherein the liquid crystal display panel is formed so as to be visible at a position near a boundary between the first display surface and the second display surface of the liquid crystal display panel.

According to the invention of claim 8, a step is formed on the metal mesh plate by bending, and the step is formed through the transmissive illumination device and the first step of the transmissive liquid crystal display panel. Since it is formed so as to be seen near the boundary between the display surface and the second display surface, it is possible to provide a boundary line between the display on the first display surface and the display on the second display surface.

In order to solve the above-mentioned problems, the invention according to claim 9 is the first type of the transmissive liquid crystal display panel.
And in the operating state of the second display surface, the transmissive lighting device is turned on and the light source unit is turned off, the display unit is deactivated, and the display unit and the transmissive liquid crystal display panel And a control means for turning off the transmissive lighting device and turning on the light source unit and for inactivating the first display surface of the transmissive liquid crystal display panel when the second display surface is in an operating state. The vehicle display device according to claim 7 or 8.

According to the invention of claim 9, when the first and second display surfaces of the transmissive liquid crystal display panel are in the operating state,
The transmissive illumination device is turned on and the light source unit is turned off, the display unit is deactivated, and the transmissive illumination device is turned off when the display unit and the second display surface of the transmissive liquid crystal display panel are in an activated state. Since the light source unit is turned on and the control means for inactivating the first display surface of the transmissive liquid crystal display panel is provided, the display by the transmissive liquid crystal display panel and the display by the display device are switched to the same position. Can be displayed.

The invention according to claim 10 made in order to solve the above-mentioned problems, is characterized in that the display unit is a night vision display unit, for a vehicle according to any one of claims 5 to 9. It exists in the display device.

According to the tenth aspect of the present invention, since the display unit is a night vision display unit, it is possible to switch and display the display by the transmissive liquid crystal display panel and the night vision display by the night vision display unit. Therefore, it is possible to realize a night vision display in a small space. Further, since the night vision display is a display with a shifted surface for the driver, that is, the night vision display is displayed farther than the display by the transmissive liquid crystal display panel, the visibility is improved.

The invention according to claim 11 made in order to solve the above-mentioned problems is a pointer type display device having a metal dial plate, and the vehicle display device according to any one of claims 1 to 10. In a meter characterized by having.

According to an eleventh aspect of the present invention, the meter is a pointer type display device having a metal dial plate, and
Since the vehicle display device according to any one of 1 to 10 is provided, a meter with a metallic appearance and a high-class feel can be obtained as a whole.

[0028]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view showing a first embodiment of a vehicular display device of the present invention, and FIG. 2 is a schematic diagram illustrating the structure of a front light unit in the vehicular display device of FIG. Is.

In the drawings, a vehicle display device 1 according to a first embodiment of the present invention includes a metal plate 10, a front light unit 20 as a transmissive lighting device arranged on the front surface of the metal plate 10, and a front light. It is composed of a transmissive liquid crystal display panel 30 arranged on the front surface of the unit 20. The metal plate 10, the front light unit 20, and the transmissive liquid crystal display panel 30 are fixed by fixing means (not shown) at predetermined intervals.

The metal plate 10 has at least a size corresponding to the display surface of the transmissive liquid crystal display panel 30, the surface of which is processed by the hairline 10a, and a step due to bending in the front-back direction at any place. 10b is formed.

The front light unit 20 has a light guide plate 21 made of a transparent resin, a light source 22 made of an LED (light emitting diode) or the like, and a reflector 23 for making light from the light source 22 incident on an edge of the light guide plate 21. As shown in FIG. 2, one surface (a surface facing the metal plate 10) 21a of the light guide plate 21 is formed as a flat surface to form an antireflection film (not shown, for example, a metal oxide multilayer vacuum deposition film or the like). Is provided, and the other surface (the surface facing the transmissive liquid crystal display panel 30) 21b is formed with a prism array in which prisms are arranged in a sawtooth shape.

In the above structure, when the light source 22 is turned on, the light emitted from the light source 22 is reflected by the reflector 23 and enters the light guide plate 21, as shown in FIG. Most of the light incident on the light guide plate 21 is totally reflected by the surface 21b of the prism array and travels in the direction of the surface 21a to become flat light, which then enters the metal plate 10. Metal plate 1
The light incident on 0 is reflected by the metal plate 10 and the light guide plate 2
After passing through 1, the light enters the transmissive liquid crystal display panel 30.

Therefore, the front light unit 20
By the backlighting of the plane light from the light reflected by the metal plate 10, the display of the transmissive liquid crystal display panel 30 is visually recognized from the right side of the transmissive liquid crystal display panel 30 in FIG. 1.

At this time, since the metal plate 10 can be seen as the background of the display of the transmissive liquid crystal display panel 30, a liquid crystal display with a metallic feeling and a high-class feeling is performed. Further, the hairline 10 a and the step 10 b of the metal plate 10 emphasize the metal-likeness of the metal plate 10 when viewed from the front side of the transmissive liquid crystal display panel 30.

When the display of the transmissive liquid crystal display panel 30 is divided into upper and lower halves, the metal plate 10 is bent at the position corresponding to the boundary between the upper display area and the lower display area to form the step 10b. The step 10b plays a role of giving a metallic feeling, and also a role of providing a boundary line of two-divided display also on the side of the metal plate 10 for backlighting the transmissive liquid crystal display panel 30.

Next, FIG. 3 is an exploded perspective view showing a second embodiment of the vehicular display device of the present invention, and FIG. 4 shows the structure of the edge light unit in the vehicular display device of FIG. It is a schematic diagram for explaining. In addition, the same components as those in FIGS. 1 and 2 will be described with the same reference numerals.

In the figure, a vehicle display device 1 according to a second embodiment of the present invention includes a metal plate 10, an edge light unit 20A as a transmissive illumination device arranged on the front surface of the metal plate 10, and an edge light. It includes a transmissive liquid crystal display panel 30 arranged on the front surface of the unit 20A.

The metal plate 10 has at least a size corresponding to the display surface of the transmissive liquid crystal display panel 30, the surface of which is processed by the hairline 10a, and a step due to bending in the front-back direction at any place. 10b is formed.

The edge light unit 20A has a light guide plate 21 made of a transparent resin, a light source 22 made of an LED (light emitting diode), etc., and a reflector 23 for making the light from the light source 22 incident on the edge of the light guide plate 21. As shown in FIG. 4, one surface (the surface facing the metal plate 10) 21 a of the light guide plate 21 is roughened by matting, and the other surface (the surface facing the transmissive liquid crystal display panel 30). Surface) 21b
Are formed in a plane. The matte treatment described above is performed by the metal plate 10 when viewed from the other surface 21b side of the light guide plate 21.
The hairline 10a is processed so that it can be visually recognized. Further, the light guide plate 21 is joined to the metal plate 10 with the transparent adhesive 24 on the one surface 21a side that has been subjected to the mat processing. The metal plate 10 and the edge light unit 20A that are joined together and the transmissive liquid crystal display panel 30 are respectively
It is fixed by a fixing means (not shown) at a predetermined interval.

In the above structure, when the light source 22 is turned on, the light emitted from the light source 22 is reflected by the reflector 23 and enters the light guide plate 21. Light guide plate 21
The light incident on is reflected by one surface 21a of the light guide plate 21 that has been subjected to the matting treatment, and advances toward the other surface 21b,
It becomes flat light and enters the transmissive liquid crystal display panel 30.
Further, the light incident on the light guide plate 21 passes through the one surface 21 a and the transparent adhesive 24 and enters the metal plate 10.
Light incident on the metal plate 10 is reflected by the metal plate 10,
For surface emission, again the transparent adhesive 24 and one surface 2
The light passes through the light guide plate 21 through the light 1a and enters the transmissive liquid crystal display panel 30.

Therefore, the edge light unit 20A
The backlight of the plane light from the metal plate 10 allows the display of the transmissive liquid crystal display panel 30 to be viewed from the right side of the transmissive liquid crystal display panel 30. At this time, since the metal plate 10 is visible as the background of the display of the transmissive liquid crystal display panel 30, a liquid crystal display with a metallic feeling and a high-class feeling is performed.

The matting of the light guide plate 21 should be such that the hairline 10a of the metal plate 10 can be visually recognized when the light source 22 is on or off when viewed from the other surface 21b side of the light guide plate 21. You can

Next, FIG. 5 is an exploded perspective view showing a third embodiment of the vehicular display device of the present invention. The same components as those of FIGS. 1 to 4 are designated by the same reference numerals. explain.

In FIG. 5, a vehicle display device 1 according to a third embodiment of the present invention includes a night vision display unit 40 as a display unit, a cylinder 50 arranged in front of the night vision display unit 40, and a cylinder. A metal mesh plate 60 arranged on the front surface of 50, a front light unit 20 as a transmissive lighting device arranged on the front surface of the metal mesh plate 60, and a transmissive liquid crystal display panel arranged on the front surface of the front light unit 20. It consists of 30 and.

The night vision display unit 40 is, for example, for photographing the forward field of view at night with an infrared camera and providing the image to the driver.

The metal mesh plate 60 has at least a size corresponding to the display surface of the transmissive liquid crystal display panel 30,
When viewed from the side opposite to the surface facing the night vision display unit 40, the night vision display unit 40
The mesh is provided to the extent that the display light can be seen.

In the above arrangement, C as a control means
When the night vision display unit 40 is deactivated and the light source 22 is turned on by a control device (not shown) composed of a PU or the like, as shown in FIG.
The light emitted from the reflector 2 and the light guide plate 2
The metal mesh plate 60 is incident on the metal plate 10 via
The light is reflected by, passes through the light guide plate 21, and enters the transmissive liquid crystal display panel 30.

Therefore, the front light unit 20
By the backlighting of the plane light from the light reflected by the metal mesh plate 60, the display of the transmissive liquid crystal display panel 30 is visually recognized from the right side of the transmissive liquid crystal display panel 30, as shown in FIG. 6B. It At this time, since the metal mesh plate 60 can be seen as the background of the display of the transmissive liquid crystal display panel 30, a liquid crystal display with a metallic feeling and a high-class feeling is performed.

Next, when the control device turns off the light source 22 and deactivates the transmissive liquid crystal display panel 30 and activates the night vision display unit 40, as shown in FIG. 7 (A). The night vision display light from the night vision display unit 40 passes through the metal mesh plate 60, the light guide plate 21 and the transmissive liquid crystal display panel 30, and as shown in FIG. It is visually recognized from the right side of the display panel 30.

As described above, in the above-described third embodiment of the present invention, the metal plate 10 in the first and second embodiments is replaced with the metal mesh plate 60 so that the metal plate 10 is transparent, and thus the transmissive liquid crystal is provided. The display by the display panel 30, for example, the multi-display and the night vision display by the night vision display unit 40 can be superimposed.

In the conventional night vision display system,
A head-up display (HUD) unit that is separate from the night vision display unit is required, and a mounting opening is provided on the upper part of the instrument panel to mount the HUD unit. In addition, the night vision is used only at night for the purpose of use, but a large installation space was required for the above reason.

According to the third embodiment of the present invention, a metal plate, which is a reflection plate of a light source, is made into a mesh so as to have transparency, so that the liquid crystal display panel and the night vision display unit are integrated to save space. Night vision display can be realized.

That is, in the multi-display by the transmissive liquid crystal display panel 30, the metallic back is utilized,
It is possible to realize the transparency effect of the mesh while maintaining a high-class feeling, and to expect the display of another display device arranged on the back side of the metal mesh plate 60, that is, the night vision display unit 40.

Further, the night vision display by the night vision display unit 40 is a display with a shifted surface for the driver, that is, the transmission type liquid crystal display panel 3
Since it is displayed farther than the multi-display by 0, the effect of improving the visibility is also obtained.

When the transmissive liquid crystal display panel 30 for multi-display adopts the standard STN type, its display surface is a dot matrix display, and the dot pattern and the metal mesh plate 60 are used. Between the patterns, the night vision display unit 40 further includes a TFT.
It is conceivable that moire may occur between the dot pattern and the liquid crystal display of the liquid crystal display type.

Therefore, in order to remove this moire, with respect to the transmissive liquid crystal display panel 30 and the metal mesh plate 60, each dot of the liquid crystal is directed to the driver in the hole portion of the mesh of the metal mesh plate 60. With respect to the metal mesh plate 60 and the night vision display unit 40, on the contrary, the liquid crystal dots do not overlap the metal portion of the mesh of the metal mesh plate 60 (that is,
All dots can be seen through the holes in the mesh).
However, since it is expensive to adjust the dot pattern of the TFT method, the hole diameter of the mesh of the metal mesh plate 60,
It is desirable to prevent moire by adjusting the pitch, the dot pattern of the transmissive liquid crystal display panel 30, the mutual arrangement position, and the like.

Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications and applications are possible.

For example, in the above-described embodiment, the hairline 10a is processed or the step 10b is formed as a method for emphasizing the metallic feeling on the metal plate 10. However, the present invention is not limited to this, and the drawing process is not limited thereto. It is also possible to adopt other methods such as.

As another embodiment, the metal mesh plate 60 may be processed such as areal weight or steps so that the metallic lines can be seen, thereby giving a more metallic appearance.

FIG. 8 is a modification of the third embodiment described with reference to FIGS. 5 to 7, and is a schematic view showing another embodiment of the present invention in which the metal mesh plate 60 is stepped. Figure 8
As shown in (A), in the vehicle display device 1, the metal mesh plate 60 has a step 60c formed between an upper portion 60a and a lower portion 60b thereof. The upper portion 60a of the metal mesh plate 60 faces the display surface 40a of the night vision display unit 40, and the lower portion 60b faces the light source unit 70 arranged between the night vision display unit 40 and the metal mesh plate 60. ing.

The light source unit 70 is arranged around the light source 71 such as an LED, and the reflector 7 for directing the light of the light source 71 to the lower portion 60b of the metal mesh plate 60.
2 and.

The transmissive liquid crystal display panel 30 has a first display surface 30a for multi-display on the upper part facing the upper part 60a of the metal mesh plate 60 and a lower part facing the lower part 60b via the front light unit 20. In addition, a second display surface 30b for displaying other than the multi-display, for example, the fuel display is provided.

In the above structure, as shown in FIG. 8A, the night vision display unit 4 is controlled by the controller.
When 0 is deactivated, the light source 71 of the light source unit 70 is turned off, and the light source 22 of the front light unit 20 is turned on, the light emitted from the light source 22 passes through the reflector 23 and the light guide plate 21 and the metal mesh. The light enters the plate 60, is reflected by the upper portion 60a, and is guided by the light guide plate 21.
Through the first liquid crystal display panel 30 and enters the first display surface 30a of the transmissive liquid crystal display panel 30 and is reflected by the lower portion 60b thereof.
The light passes through the light guide plate 21 and enters the second display surface 30b.

Therefore, in this case, the multi-display by the first display surface 30a of the transmissive liquid crystal display panel 30 and the fuel display by the second display surface 30b are simultaneously performed, and the metal mesh plate 60 is in the background thereof. A metallic feeling and a high-class feeling can be obtained.

Further, the step 60c is formed between the first display surface 30a and the second display surface 30b of the transmissive liquid crystal display panel 30 by the multi-display by the first display surface 30a and the second display surface 30b. It can be seen as a border line between fuel displays.

On the other hand, as shown in FIG. 8B, the light source 22 of the front light unit 20 is turned off and the first display surface 30a of the transmissive liquid crystal display panel 30 is controlled by the control device.
Is inactivated, the night vision display unit 40 is activated, and the light source 71 of the light source unit 70 is activated.
When is turned on, the night vision display light from the night vision display unit 40 passes through the upper portion 60a of the metal mesh plate 60, the light guide plate 21 and the first display surface 30a of the transmissive liquid crystal display panel 30 to display the night vision display. But,
It is visually recognized from the right side of the transmissive liquid crystal display panel 30.

Light from the light source 71 of the light source unit 70 is incident on the second display surface 30b of the transmissive liquid crystal display panel 30 as backlighting through the reflector 72 and the light guide plate 21.

Therefore, in this case, the fuel display by the second display surface 30b of the transmissive liquid crystal display panel 30 and the night vision display by the night vision display unit 40 are simultaneously performed.

Next, FIG. 9 is a schematic view showing still another embodiment of the present invention, which is another modification of the third embodiment described with reference to FIGS. 5 to 7, and in which the metal mesh plate 60 is omitted. is there. As shown in FIG. 9 (A), in the vehicle display device 1, the light guide plate 21 of the front light unit 20 has a flat surface 21a facing the transmissive liquid crystal display panel 30, and a prism array. The other surface 2 on which is formed
1b is arranged so as to face the night vision display unit 40.

In the above structure, as shown in FIG. 9A, the night vision display unit 4 is controlled by the controller.
When 0 is made inactive and the light source 22 is turned on, the light emitted from the light source 22 enters the transmissive liquid crystal display panel 30 as backlighting through the reflector 23 and the light guide plate 21, and the liquid crystal display is transmitted. The liquid crystal display panel 30 is viewed from the right side.

On the other hand, when the control device turns off the light source 22 and deactivates the transmissive liquid crystal display panel 30 and activates the night vision display unit 40, as shown in FIG. The night vision display light from the vision display unit 40 passes through the light guide plate 21 and the transmissive liquid crystal display panel 30, and the night vision display is visually recognized from the right side of the transmissive liquid crystal display panel 30.

With the configuration shown in FIG. 9, it is possible to perform multiple display of the display by the transmissive liquid crystal display panel 30 and the night vision display by the night vision display unit 40.

Next, the vehicle display device of the present invention described with reference to FIGS. 1 to 8 can be combined with the pointer type display device such as a speedometer or a tachometer as the vehicle combination meter described above.

FIG. 10 is a schematic diagram showing an embodiment of a meter to which the vehicle display device of the present invention is applied. In FIG. 10, as the meter, one of the vehicle display devices 1 described in FIGS. 1 to 8 is provided between a speedometer 80 using a metal dial and a tachometer 90 using a metal dial. It is configured as an arranged trinocular meter.

With this arrangement, the liquid crystal display panel 3 of the vehicular display device 1 is provided between the speedometer 80 and the tachometer 90.
Although the display surface of 0 is visible, the metal plate 10 (not shown here) or the metal mesh plate 60 (not shown here) can be visually recognized as a background on the display surface as described above. Along with the metal dial of the tachometer 90, a metallic impression is given to the whole, and a high-grade three-lens meter can be obtained.

In particular, in FIG. 10, when the vehicle display device including the night vision display unit described with reference to FIGS. 5 to 9 is used, since night vision is usually present as a vehicle option, the night vision display unit is In response to the demand for miniaturization, it can be miniaturized by integrating it with a vehicle meter such as a speedometer,
In addition, it is easy to assemble the night vision display unit as an option.

[0078]

As described above, according to the invention described in claim 1, a liquid crystal display having a metallic feeling and a high-grade feeling can be obtained.

According to the second aspect of the invention, all the light from the light source can be incident on the metal plate as plane light, and the plane light reflected by the metal plate can be used for backlighting of the transmissive liquid crystal display panel. Be useful.

According to the third aspect of the present invention, the light from the light source is guided to the transmissive liquid crystal display panel metal plate as flat light by the light guide plate and is reflected by the metal plate to the transmissive liquid crystal display panel metal plate. It can be incident, and is useful for backlighting a transmissive liquid crystal display panel.

According to the fourth aspect of the invention, the metallic feeling of the background of the liquid crystal display is emphasized.

According to the invention of claim 5, a liquid crystal display having a metallic feeling and a high-grade feeling can be obtained, and since the transmissive liquid crystal display panel and the display device are integrated, the display space is reduced and the size is reduced. It will be possible.

According to the sixth aspect of the invention, the display by the transmissive liquid crystal display panel and the display by the display device can be switched and displayed at the same location.

According to the seventh aspect of the invention, a liquid crystal display having a metallic feeling and a high-grade feeling can be obtained, and since the transmissive liquid crystal display panel and the display device are integrated, the display space is reduced and the size is reduced. It will be possible. Further, different displays can be performed on the first display surface and the second display surface of the transmissive liquid crystal display panel.

According to the eighth aspect of the present invention, it is possible to provide a boundary line between the display on the first display surface and the display on the second display surface in the transmissive liquid crystal display panel.

According to the ninth aspect of the invention, the display by the transmissive liquid crystal display panel and the display by the display device can be switched and displayed at the same location.

According to the tenth aspect of the present invention, the display by the transmissive liquid crystal display panel and the night vision display by the night vision display unit can be switched and displayed at the same location, and the night vision display can be realized in a small space. can do. Also, the night vision display is
Since the display is shifted to the driver, that is, the display is farther than the display by the transmissive liquid crystal display panel, the visibility is improved.

According to the eleventh aspect of the present invention, it is possible to obtain a high-grade meter having a metallic feeling as a whole.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of a vehicle display device of the present invention.

2 is a schematic diagram illustrating a structure of a front light unit in the vehicle display device of FIG. 1. FIG.

FIG. 3 is an exploded perspective view showing a second embodiment of the vehicle display device of the present invention.

4 is a schematic diagram illustrating a structure of an edge light unit in the vehicle display device of FIG.

FIG. 5 is an exploded perspective view showing a third embodiment of the vehicle display device of the present invention.

6A and 6B are diagrams for explaining the operation of the vehicular display device of FIG.

7A and 7B are views for explaining the operation of the vehicle display device of FIG.

8A and 8B are schematic views showing another example which is a modification of the third embodiment of the present invention.

9A and 9B are schematic views showing still another example which is a modification of the third embodiment of the present invention.

FIG. 10 is a schematic view showing an embodiment of a meter to which the vehicle display device of the present invention is applied.

[Explanation of symbols]

1 Vehicle Display Device 10 Metal Plate 10a Hairline 10b Step 20 Front Light Unit (Transmissive Lighting Device) 20A Edge Light Unit (Transmissive Lighting Device) 21 Light Guide Plate 22 Light Source 23 Reflector 30 Transmissive Liquid Crystal Display Panel 30a First Display Surface 30b Second display surface 40 Night vision display unit (display unit) 60 Metal mesh plate 60c Step 70 Light source unit

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G01D 11/28 G01D 11/28 B G02F 1/13 505 G02F 1/13 505 // F21Y 103: 00 F21Y 103 : 00 F term (reference) 2F041 EA01 EA04 EA08 2F074 AA02 BB06 CC05 DD02 EE02 EE03 FF01 GG06 2H088 EA23 HA18 HA21 HA23 HA28 HA30 MA20 2H091 FA21Z FA23Z FA41Z MA10 3D044 BA14 BA27 BB01 BD01 BD

Claims (11)

[Claims] 1. A metal plate, a transmissive lighting device disposed on the front surface of the metal plate to illuminate the metal plate, and a transmissive lighting device disposed on the front surface of the transmissive lighting device, the transmissive light being reflected from the metal plate. A vehicle display device comprising: a transmissive liquid crystal display panel that is backlit by light passing through an illumination device. 2. The transmissive lighting device comprises a light guide plate,
The light guide includes a light source and a reflector that allows light from the light source to enter the light guide plate. The light guide plate has one surface facing the metal plate formed into a flat surface and faces the transmissive liquid crystal display panel. The vehicle display device according to claim 1, wherein a prism array is formed on the other surface. 3. The transmissive lighting device comprises a light guide plate,
The light guide includes a light source and a reflector that allows the light from the light source to enter the light guide plate. The light guide plate is matted on one surface facing the metal plate and faces the transmissive liquid crystal display panel. The vehicular display device according to claim 1, wherein the other surface is formed to be a flat surface. 4. The metal plate is subjected to at least one process including a hairline, a drawing process and a bending process, and the metal plate is subjected to at least one process.
The display device for a vehicle according to the item. 5. A metal mesh plate, a transmissive lighting device disposed on the front surface of the metal mesh plate to illuminate the metal plate, and a transmissive lighting device disposed on the front surface of the transmissive lighting device and reflecting from the metal mesh plate. A transmissive liquid crystal display panel having a display surface that is backlit by light passing through the transmissive lighting device, and overlapping the display surface of the transmissive liquid crystal display panel through the metal mesh plate and the transmissive lighting device. A display unit for a vehicle, comprising: a display unit arranged on the back side of the metal mesh plate so that the display can be seen at a position. 6. The transmissive liquid crystal display panel is turned on when the transmissive liquid crystal display panel is in an operating state, and the display unit is deactivated, and the transmissive lighting device is turned off when the display unit is in an operating state. 6. The vehicle display device according to claim 5, further comprising control means for setting the transmissive liquid crystal display panel in an inoperative state. 7. A metal mesh plate, a transmissive lighting device disposed on the front surface of the metal mesh plate to illuminate the metal plate, and a transmissive lighting device disposed on the front surface of the transmissive lighting device and reflecting from the metal mesh plate. A transmissive liquid crystal display panel having a first display surface and a second display surface which are backlit by light passing through the transmissive lighting device; and the transmissive type through the metal mesh plate and the transmissive lighting device. A display unit disposed on the back side of the metal mesh plate so that the display can be seen at a position overlapping with the first display surface of the liquid crystal display panel, and the display unit disposed between the display unit and the metal mesh plate. A light source unit for backlighting the second display surface of the liquid crystal display panel, and a display device for a vehicle. 8. A step is formed on the metal mesh plate by bending, and the step is formed between the first display surface of the transmissive liquid crystal display panel and the second step through the transmissive lighting device. The vehicular display device according to claim 7, wherein the vehicular display device is formed so as to be visible near a boundary of the display surface. 9. The transmissive liquid crystal display panel, when the first and second display surfaces are in an operating state, the transmissive illumination device is turned on and the light source unit is turned off, and the display unit is in an inoperative state. In the operating state of the display unit and the second display surface of the transmissive liquid crystal display panel, the transmissive illumination device is turned off and the light source unit is turned on, and the first of the transmissive liquid crystal display panel is turned on. 9. The vehicular display device according to claim 7, further comprising a control means for making the display surface of the display device inoperative. 10. The vehicular display device according to claim 5, wherein the display unit is a night vision display unit. 11. A meter, comprising: a pointer-type display device having a metal dial plate; and the vehicle display device according to claim 1.