JP2005099230A - Information displaying apparatus for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information displaying apparatus for a vehicle in which the luminance of an indication is made uniform regardless of whether the indication is present at a deep side or at a front side, and the luminance of the indication can be changed as needed. <P>SOLUTION: Within a cluster 11a having an opening 10b at a side faced to an occupant, a plurality of reflecting mirror members 10a, 10b, 10c for reflecting vehicle information to be displayed at a side of a displaying surface 12a of a panel display device 12 so as to be visible from the inside of a car room 1, are erected obliquely along with areas P1, P2, P3, so that the occupant can see the indication on the displaying surface 12a transmitted through the reflecting mirror member 10a provided near the occupant, and reflected by the reflecting mirror member 10c provided far from the occupant. A cathode-ray tube illuminator 13 that is provided on the rear side of the panel display device 12 is set to change a quantity of illumination light corresponding to the reflecting mirrors 10a, 10b, 10c. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vehicle information display device that causes a display device that displays vehicle information to be reflected by a plurality of reflecting mirror members and visually recognized by an occupant, and in particular, regardless of whether the display exists on the back side or the near side. The present invention relates to an information display device for a vehicle that can homogenize display brightness and change display brightness as necessary.

  Conventionally, a vehicle information display device mounted on a vehicle such as an automobile as shown in FIG. 12 is known (see, for example, Patent Document 1).

  First, from the configuration, in this conventional vehicle information display device, between the driver seat and the passenger seat of the instrument panel 2 that extends along the vehicle width direction in front of the driver seat in the passenger compartment 1. A multi-display device 3 composed of a liquid crystal display device or a CRT device is provided at the center in the vehicle width direction.

  The multi-display device 3 is provided with a multi-display screen 3c so as to face the vehicle interior direction from an opening 3b of a cluster 3a provided at the upper part of the instrument panel 2.

  In the multi-display screen 3c, the speed display unit 4 for displaying the speed and the map information of the navigation device are displayed on one screen, and information on the vehicle equipment such as audio or air conditioner equipment and operation switch groups are displayed by switching. A switch screen display unit 5 for displaying is provided in combination.

  Further, in the center cluster unit 6 provided below the multi-display device 3, an operation switch group displayed on the switch screen display unit 5 is appropriately selected and executed, and an operation for instructing control of each in-vehicle device is performed. Part 7 is provided.

  In the vehicle information display device as shown in FIG. 13, the panel display device 9 faces the display surface portion 9a upward in the cluster 8 as a storage portion provided in the instrument panel 2 on the vehicle body side. , Stored.

  Reflective mirror members 10a, 10b, which are configured by half mirrors that reflect vehicle information displayed on the display surface portion 9a and are visible from the vehicle interior direction, on the display surface portion 9a side of the panel display device 9. In addition, a plurality of reflection mirror members 10c constituted by mirror members that totally reflect are provided at regular intervals.

  Next, the operation of these conventional vehicle information display devices will be described.

  In the conventional vehicle information display device shown in FIG. 12 configured as described above, the multi-display device 3 and the operation unit 7 are provided separately. The amount of line-of-sight movement when visually recognizing the speed display unit 4 is small, and the operation unit 7 provided in the center cluster unit 6 can be operated at a position where the hand can reach from an occupant sitting the operation unit 7 on the driver's seat.

  In the vehicle information display device shown in FIG. 13, when vehicle information is displayed in each of the regions L1 to L3 of the display surface portion 9a of the panel display device 9, the reflection mirror members 10a and 10b and the reflection mirror member are displayed. By 10c, the vehicle information displayed on this display surface part 9a is each reflected, and it is visually recognized by the passenger | crew of the compartment 1 as a display which has a feeling of depth.

For this reason, in the case of the vehicle information display device as shown in FIG. 12, the multi-display screen provided with the speed display unit 4 and the switch screen display unit 5 is directed from the opening 3b of the cluster 3a toward the interior of the vehicle compartment 1. Therefore, it is possible to display a large amount of information at a time as compared with a vehicle information that can be displayed with a limited display area.
JP 2001-113981 (paragraph [0024], FIGS. 1 and 2)

  However, in the conventional vehicle information display device as shown in FIG. 13, the display of the region L3 located on the back side when viewed from the passenger side of the display surface portion 9a of the panel display device 9 is displayed on the reflection mirror member. After passing through 10a and 10b, it is visible from the opening 8a of the cluster 8, so that there is a problem that the luminance of the display is reduced when passing through the reflection mirrors 10a and 10b on the near side. .

  In addition, since the structure is simple, the display position of the display surface portion 9a may not be changed. In this case, the display order viewed from the passenger side of the panel display device 9 cannot be changed, and it is difficult to make vehicle information to be emphasized conspicuous.

  Therefore, an object of the present invention is to provide an information display device for a vehicle that can homogenize the display brightness and change the display brightness as necessary, regardless of whether the display is on the back side or the near side. There is.

  The present invention has been made paying attention to such problems, and the invention according to claim 1 has a display device with a display surface portion facing upward in a cluster having an opening on the side facing the occupant. Along with the display surface portion, a plurality of reflection mirror members provided on the display surface portion side of the display device and reflecting the vehicle information displayed on the display surface portion so as to be visible from the vehicle interior direction. By standing upright, it is possible to transmit the reflection mirror member on the near side as seen from the occupant side and to allow the occupant to visually recognize the display on the display surface portion reflected by the reflection mirror member on the back side as seen from the occupant side. In addition, in the vehicle information display device in which a backlight light source is provided on the back side of the display device, the backlight light source is set to correspond to each of the reflection mirrors so that the amount of illumination light can be changed. It is characterized in the information display apparatus for a vehicle.

  According to a second aspect of the present invention, in the backlight light source, the display on the display surface portion reflected by the reflection mirror member on the back side as viewed from the passenger side passes through the reflection mirror on the near side. The vehicle information display device according to claim 1, wherein the portion of the backlight source corresponding to the reflection mirror member on the back side compensates for the brightness of the display that is dimmed by increasing the amount of illumination light.

  Further, according to a third aspect of the present invention, in the backlight light source, the amount of illumination light of a portion corresponding to the reflection mirror member displayed on the display surface portion and reflecting vehicle information to be emphasized is reflected on the other reflection mirror. The vehicle information display device according to claim 1, wherein the vehicle information display device is increased more than a portion corresponding to.

  And what is described in Claim 4 changes either the display brightness | luminance of the display displayed on the display surface part of the said display apparatus according to the change of the illumination light quantity of the said backlight light source. The vehicle information display device according to one aspect is characterized.

  According to the first aspect of the present invention, the backlight light source is set so that the amount of illumination light can be changed corresponding to each reflection mirror member. The brightness of the display can be changed.

  Further, according to a second aspect of the present invention, when the display of the display surface portion reflected by the reflection mirror member on the back side when viewed from the passenger side is transmitted through the reflection mirror on the near side by the backlight light source. The brightness of the display that is dimmed is compensated by increasing the amount of illumination light of the portion corresponding to the reflection mirror member on the back side of the backlight light source.

  For this reason, the brightness of the display is homogenized regardless of whether the display is on the back side or the near side.

  According to a third aspect of the present invention, the amount of illumination light in the portion corresponding to the reflection mirror member displayed on the display surface portion by the backlight light source and on which the vehicle information to be emphasized is reflected is displayed. Increased over the portion corresponding to the mirror.

  Accordingly, it is possible to improve the visibility by increasing the brightness of the display of the vehicle information desired to be emphasized compared to the display of other vehicle information.

  According to a fourth aspect of the present invention, the display brightness of the display displayed on the display surface portion of the display device is changed in accordance with the change in the amount of illumination light of the backlight light source.

  For this reason, the display of the vehicle information to be emphasized is displayed with high brightness and relatively brightly, and the visibility can be improved.

  1 to 10 show an information display device 11 for a vehicle according to the best mode for carrying out the present invention.

  The same or equivalent parts as those in the conventional example will be described with the same reference numerals.

  First, in terms of configuration, in the vehicle information display device 11 of this embodiment, as shown in FIG. 2 or FIG. 3, as a vehicle body side member along the vehicle width direction in front of the driver's seat in the passenger compartment 1. The instrument panel 2 is extended.

  Among the instrument panels 2, the vehicle information display device 11 is integrated with the upper surface of the instrument panel 2 on the upper surface of the central portion in the vehicle width direction and directly below the front window panel G in front of the passenger compartment 1. It is provided to become.

  This vehicle information display device 11 is mainly provided with a hollow cluster 11a as a storage portion protruding upward.

  The cluster 11a is mainly configured by fitting a cover glass member 11d into an opening 11b formed to open toward the rear of the vehicle. A panel display device 12 as a display device is housed near the bottom surface in the cluster 11a with the display surface 12a tilted substantially horizontally and facing upward.

  In the vehicle information display device 11 of this embodiment, the display surface 12a side of the panel display device 12 is divided into three regions P1, P2, and P3 in the vehicle front-rear direction, and the reflection mirror members 10a and 10b and the reflection mirror members 10a and 10b. A mirror member 10c is provided so as to stand obliquely at a certain angle θ (θ = 45 ° in this embodiment) along each region P1, P2, P3 of the display surface portion 12a. .

  Among these, the reflection mirror members 10a and 10b are arranged in parallel by attaching left and right end edges to the inner wall of the cluster 11a at regular intervals.

  And these reflection mirror members 10a and 10b are located in the near side and the center as seen from the occupant side among the three mirror members 10a to 10c, and have semi-translucency, Each of the half mirror members that partially reflects light has a rectangular flat plate shape having a longitudinal direction in the vehicle width direction.

  Further, the reflection mirror member 10c is located on the back side when viewed from the occupant side, and is oblique to the inner side surface of the front wall portion 11c of the cluster 11a at a constant angle θ (θ = 45 ° in this embodiment). The vehicle information displayed on the display surface portion 12a is totally reflected.

  And the display of the vehicle information displayed on the said display surface part 12a is reflected toward the vehicle back by each of these reflective mirror members 10a and 10b and the reflective mirror member 10c. That is, the display reflected by the reflection mirror member 10c located on the farthest side as viewed from the passenger side passes through the reflection mirror members 10b and 10a on the near side as viewed from the passenger side, and from the vehicle interior direction, When the light is transmitted by the reflecting mirror members 10b and 10a, the light is displayed with a certain amount of light reduction, and the vehicle compartment is provided via the cover glass member 11d of the opening 11b formed on the rear surface side of the cluster 11a. It is comprised so that the passenger | crew in 1 can be visually recognized.

  Further, the display reflected by the reflection mirror member 10b located on the back side from the reflection mirror member 10a on the front side as viewed from the passenger side is transmitted through the reflection mirror member 10a on the front side as viewed from the passenger side. Thus, from the vehicle interior direction, when the light is transmitted by the reflecting mirror member 10a, a fixed amount of light is reduced, and the cover glass member 11d of the opening 11b formed on the rear surface side of the cluster 11a is displayed. Thus, the passenger in the passenger compartment 1 is configured to be visible.

  Furthermore, the display of the display surface portion 12a reflected toward the rear of the vehicle by the reflection mirror member 10a located on the most front side is covered with a cover glass member 11d of the opening portion 11b formed on the rear surface side of the cluster 11a. It is comprised so that the passenger | crew in the said compartment 1 can be visually recognized through this.

  A cold cathode tube illumination device 13 as a backlight light source is provided on the back side of the panel display device 12.

  The cold-cathode tube illuminating device 13 corresponds to the reflecting mirror members 10a, 10b, and 10c, and has a substantially box-shaped near-side backlight unit 13a and a central backlight unit 13b each having an upper surface that is substantially rectangular in top view. , And the back side backlight portion 13c.

  A plurality of cold cathode fluorescent lamps (CFLs) 13d,... Are arranged in parallel at predetermined intervals in the front side backlight unit 13a, the central backlight unit 13b, and the back side backlight unit 13c. Thus, light is emitted in a substantially planar shape, and the illumination light amount is set to be changeable depending on the energization amount.

  Next, control of information display on the display surface portion 12a of the panel display device 12 and illumination of each front side backlight portion 13a, the central backlight portion 13b, and the back side backlight portion 13c of the cold cathode tube illumination device 13 are performed. A configuration of a control circuit that performs control will be described.

  In the first embodiment, the operation unit 14 such as a dial switch provided on the instrument panel 2 controls the information display of the display surface unit 12a and the illumination of the backlight units 13a to 13c. It is connected to the.

  The control unit 15 includes a display control unit 16 that controls display of information on the display surface unit 12a, a near-side illumination light amount control unit 17 that controls illumination of each of the backlight units 13a to 13c, and a central illumination light amount. A control unit 18 and a back side illumination light quantity control unit 19 are provided, and these display control unit 16, front side illumination light quantity control unit 17, central illumination light quantity control unit 18, and back side illumination light quantity control unit 19 And an integrated display control unit 20 that performs cooperative control.

  Among these, the near side illumination light quantity control part 17 is connected to the near side backlight part 13a of the cold cathode tube illumination device 13, and by changing the drive current to the near side backlight part 13a, The illumination light quantity can be changed.

  The central illumination light quantity control unit 18 is connected to the central backlight part 13b of the cold cathode tube illumination device 13, and changes the illumination light quantity by changing the drive current to the central backlight part 13b. It is configured to be possible.

  In the first embodiment, the display of the display surface portion 12a that is normally reflected from the reflection mirror member 10b on the back side as viewed from the passenger side is dimmed when passing through the reflection mirror member 10a on the near side. Is set to be relatively bright so that the illumination light amount of the central backlight portion 13b is increased and compensated for the illumination light amount of the near-side backlight portion 13a.

  Further, the back side illumination light quantity control unit 19 is connected to the back side backlight unit 13c of the cold cathode tube illumination device 13, and changes the drive current to the back side backlight unit 13c to thereby illuminate The amount of light can be changed.

  In the first embodiment, when the display on the display surface portion 12a reflected by the reflection mirror member 10c located on the farthest side as viewed from the passenger side passes through the reflection mirror members 10a and 10b on the near side. In order to compensate for the brightness of the display dimming, the illumination light quantity of the back side backlight unit 13c is compensated by increasing it compared to the illumination light quantity of the front side backlight unit 13a and the central backlight unit 13b. Furthermore, it is set to be relatively bright.

  And in this Example 1, it is displayed on the area | region P3 of the said display surface part 12a among the said cold cathode tube illuminating devices 13, and the part corresponding to the reflective mirror member 10c by which the vehicle information which it is going to emphasize is reflected and displayed is shown. The illumination light quantity can be changed so as to be larger than the portions corresponding to the other reflecting mirror members 10a and 10b.

  Further, in the first embodiment, the display brightness of the display displayed on the display surface portion 12a of the display device 12 is changed by the integrated display control unit 20 in accordance with the change of the illumination light quantity of the cold cathode tube illumination device 13. As described above, the control of the front illumination light quantity control unit 17, the central illumination light quantity control unit 18, the back illumination light quantity control unit 19 and the display control unit 16 is configured to be coordinated.

  That is, in the first embodiment, by operating the operation unit 14, the near-side illumination light amount control unit 17 of the near-side backlight unit 13a, the central backlight unit 13b, and the back-side backlight unit 13c, and the central illumination light amount Coordinated control is performed so that the display brightness of the vehicle information displayed on the display surface portion 12a is also increased or decreased in coordination with the control of the increase or decrease of the light amount by the control unit 18 and the back side illumination light amount control unit 19. ing.

  Next, the operation of the first embodiment will be described.

  In the vehicle information display device 11 according to the first embodiment, the display control unit 16 of the control unit 15 displays an analog meter in the area P1 of the display surface portion 12a of the panel display device 12 as shown in FIG. 21 and 22 are highlighted.

  Further, in the area P2 of the display surface portion 12a, various warning displays 23, a fuel gauge display 24, a water temperature gauge display 25, and a shift indicator display 26 are highlighted in the center of the vehicle width direction.

  Further, in the area P3 of the display surface portion 12a, a digital speed display 27 is displayed in reverse at approximately the center in the vehicle width direction.

  In the first embodiment, since outside light does not enter the cluster 11a during normal daytime or night driving, the areas P1, P2, and P3 of the display surface portion 12a of the panel display device 12 are not affected. The displayed indications 23 to 27 are reflected and displayed by the reflecting mirror members 10a, 10b and 10c. As shown in FIG. 7, the vehicle interior side opening 11b of the cluster 11a is opened from the vehicle interior 1 as shown in FIG. And is visually recognized with high contrast.

  At this time, as shown in FIG. 6, the images reflected and displayed on the reflection mirror members 10a, 10b and 10c stand with the reflection mirror members 10a, 10b and 10c separated by a certain distance in the depth direction. Therefore, stereoscopic multiple display with a sense of depth is performed.

  And each backlight part 13a-13c of the said cold-cathode tube illuminating device 13 is individually controlled by each said near side illumination light quantity control part 17, the central illumination light quantity control part 18, and the back side illumination light quantity control part 19. Since the illumination light quantity is set to be changeable in correspondence with each of the reflection mirror members 10a, 10b, and 10c, the display brightness can be changed as necessary.

  That is, in the first embodiment, the digital speed display 27 of the display surface portion 12a reflected by the back-side backlight portion 13c on the back-side reflecting mirror member 10c when viewed from the passenger side is displayed on the central reflecting mirror. The amount of illumination light is increased so as to compensate for the brightness of the digital speed display 27 that is dimmed when passing through the member 10b and the reflection mirror member 10a on the near side.

  Further, the various warning displays 23 and the fuel gauge display 24, the water temperature gauge display 25, and the shift indicator display 26 reflected and displayed on the reflection mirror member 10b at the center by the central backlight portion 13b are also provided on the front side. The amount of illumination light is increased so that the luminance of each of these displays 23 to 26 that is dimmed when passing through the reflecting mirror member 10a is compensated.

  For this reason, the brightness of the display is homogenized regardless of whether the display reflected by the reflecting mirror members 10a to 10c actually exists on the back side or the near side.

  The display of FIG. 8 shown for comparison shows a case where the near side backlight unit 13a and the back side backlight unit 13c have the same light amount. In this case, when viewed from the occupant side, as shown by the two-dot chain line in the figure, the digital speed display 27 displayed on the back side becomes dark, but in the first embodiment, the digital speed displayed on the back side is dark. Since the illumination light quantity of the back side backlight unit 13c of the display 27 is relatively increased, the luminance of each display is made uniform as shown in FIG.

  Further, in the first embodiment, as shown in FIG. 9, the amount of illumination light of the back side backlight unit 13c of the digital speed display 27 displayed on the back side is relatively increased to perform highlighting. I can do it.

  That is, in the first embodiment, the digital speed display 27 to be emphasized has a character body portion 27a having a predetermined color, for example, blue, and a white border provided with a certain width on the periphery of the character body portion 27a. It is displayed by the display control unit 16 so as to be configured by the unit 27b.

  And the back side illumination light quantity control part 19 is controlled so that the back side backlight part 13c of the said cold-cathode tube illuminating device 13 provided in the back side may be further brightened.

  For this reason, this digital speed display 27, which is vehicle information to be emphasized displayed in the area P3 of the display surface portion 12a, corresponds to the amount of illumination light corresponding to the reflection mirror member 10c corresponding to the other reflection mirrors 10a and 10b. It is visually recognized by the passenger in the passenger compartment 1 together with the backlight illumination that is increased compared to the portion that performs.

  In the first embodiment, as shown in FIG. 9, in the digital speed display 27, the amount of transmitted light of the white border portion 27b provided at a constant width around the character body portion 27a increases. The brightness of the border portion 27b is further increased, and the outer peripheral edge of the digital speed display 27 is brilliant and emphasized.

  Therefore, the brightness of the display of the vehicle information to be emphasized is further increased and the visibility is improved as compared with the display of other vehicle information.

  In the first embodiment, the display brightness of the display displayed on the display surface portion 12a of the display device 12 is changed by the integrated display control unit 20 in accordance with the change of the illumination light quantity of the cold cathode tube illumination device 13. As described above, the controls of the front side illumination light quantity control unit 17, the central illumination light quantity control unit 18, the back side illumination light quantity control unit 19 and the display control unit 16 are cooperatively controlled.

  For this reason, the display brightness of each display 21-27 displayed on the display surface part 12a of the panel display device 12 is set to the front side backlight part 13a, the central backlight part 13b, and the back side of the cold cathode tube illumination device 13. It can be changed according to the change of the illumination light quantity of the backlight unit 13c.

  Accordingly, the display of the vehicle information to be emphasized can be individually displayed with high luminance and relatively brightly, thereby further improving the visibility.

  As described above, in the vehicle information display device 11 described in the first embodiment, the positions in the depth direction of the respective displays 21 to 27 displayed in the respective regions P1, P2, and P3 of the display surface portion 12a are as follows. Without changing to the near side, for example, the illumination light quantity of the back side backlight unit 13c of the digital speed display 27 displayed on the back side can be relatively increased to perform the highlight display.

  For this reason, the display control by the display control unit 16 can be facilitated. For example, even if the segments are configured and the displays 21 to 27 displayed in the regions P1, P2, and P3 are fixed, respectively. Desirable good visibility can be obtained. Therefore, an increase in manufacturing cost can be suppressed.

  FIG. 11 shows an LED planar illumination device 113 as a backlight light source used in the vehicle information display device 11 according to the second embodiment of the present invention.

  In this LED planar illumination device 113, LED matrices 31, 31 in which a plurality of LED arrays 32 are arranged in a grid pattern are arranged in three rows in the vehicle width direction, so that the regions P1, P2 of the first embodiment are respectively provided. , P3 illuminating each of the front side backlight unit 113a, the central backlight unit 113b, and the back side backlight unit 113c are combined in a single plate shape.

  These near-side backlight units 113a are connected to the near-side illumination light quantity control unit 17 and the central backlight part 113b is connected to the central illumination light quantity control unit 18 in substantially the same manner as in the first embodiment. In addition, the back-side backlight unit 113c is connected to the back-side illumination light quantity control unit 19, and is configured so that the illumination light quantity can be changed by changing each drive current.

  Other configurations and functions and effects are substantially the same as those in the first embodiment, and thus description thereof is omitted.

  As mentioned above, although the vehicle information display apparatus of Examples 1 and 2 of the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and the present invention is not limited to this embodiment. Design changes that do not depart from the gist are included in the present invention.

  For example, in Examples 1 and 2 of the above-described embodiment, the cluster 11a of the vehicle information display device 11 is fixed to the upper surface of the instrument panel 2 in the center of the vehicle width direction. 2, the vehicle information display device 11 may be provided on the upper surface side of the instrument panel 2 in front of the driver seat 33, as indicated by a two-dot chain line in FIG.

  Further, like the vehicle information display apparatus 11 of Examples 1 and 2 of this embodiment, the shape, quantity, and material of the cluster 11a are not particularly limited.

  Furthermore, in the vehicle information display device 11 of the first embodiment, the panel display device 12 is used as the display device. However, the present invention is not limited to this, and the vehicle information is displayed and a backlight light source is provided. For example, other electro-optical elements such as organic EL and inorganic EL, and other display devices composed of semiconductor elements may be used.

  In the first and second embodiments, the reflecting mirror members 10a and 10b and the mirror member 10c each including two half mirrors are provided. However, the present invention is not limited to this, and one or three or more plural mirror members are provided. The half mirror member may be configured in combination with the mirror member 10c, and the shape, quantity, and material of the half mirror member and the mirror member are not limited.

FIG. 3 is a cross-sectional view of the vehicle information display device according to Example 1 of the embodiment of the present invention at a position along the line AA in FIG. 2. BRIEF DESCRIPTION OF THE DRAWINGS It is a typical perspective view which shows the vehicle information display apparatus of Example 1, and demonstrates the structure of a vehicle interior. In the vehicle information display apparatus of Example 1, it is a permeation | transmission expansion perspective view explaining the structure of the principal part. It is a front view explaining the example of a display of a panel display device with the information display device for vehicles of Example 1. FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a top view illustrating a configuration of a cold cathode tube illumination device in a vehicle information display device according to a first embodiment. It is a typical perspective view explaining a feeling of depth in the information display device for vehicles of Example 1. FIG. It is a typical front view which shows an example of the display visually recognized by the passenger | crew by which the digital speed display was highlighted by the vehicle information display apparatus of Example 1. FIG. It is a typical front view which shows an example by which the backlight illumination is performed equally for the comparison with the information display apparatus for vehicles of Example 1. FIG. It is a front view which shows an example of the display by which the digital speed display was highlighted by the vehicle information display apparatus of Example 1. FIG. It is a front view which shows an example by which the backlight illumination is performed by making luminance differ so that display luminance may become equal with the vehicle information display apparatus of Example 1. FIG. It is an information display device for vehicles of Example 2, and is an upper surface figure explaining composition of a LED planar lighting device. It is a front view of the instrument panel which provided the center display in the conventional vehicle information display apparatus. Sectional drawing in the part corresponded in the position along the AA line in FIG. 2 which shows the structure which displays a vehicle information on another conventional vehicle information display apparatus using a some reflective mirror member. It is.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cabin 11 Information display apparatus 11a for vehicles Cluster 12 Panel display apparatus 12a Display surface part backlight light source 13 Cold cathode tube illuminating device 113 LED planar illuminating device 10a, 10b, 10c
Reflective mirror member 15 Control unit 16 Display control unit 17 Front side illumination light amount control unit 18 Central illumination light amount control unit 19 Back side illumination light amount control unit

Claims (4)

A cluster having an opening on the side facing the passenger has a display device with the display surface facing upward, and is provided on the display surface of the display device to reflect vehicle information displayed on the display surface. Then, by allowing the plurality of reflection mirror members to be visible from the vehicle interior direction to stand obliquely along the display surface portion, the reflection mirror member on the near side as viewed from the passenger side is transmitted, In the vehicle information display device in which the display of the display surface portion reflected by the reflection mirror member on the back side when viewed from the occupant side is visible to the occupant and a backlight light source is provided on the back side of the display device,
An information display device for a vehicle, wherein the backlight light source is set so as to be able to change the amount of illumination light corresponding to each of the reflection mirrors.   In the backlight light source, the display brightness reflected by the reflection mirror member on the back side as viewed from the occupant side is dimmed when passing through the reflection mirror on the near side, and the brightness of the display is reduced. 2. The vehicle information display device according to claim 1, wherein a portion corresponding to the reflection mirror member on the back side of the light source is compensated by increasing the amount of illumination light.   In the backlight light source, the amount of illumination light of a portion corresponding to a reflection mirror member displayed on the display surface portion and reflected and displayed with vehicle information to be emphasized is increased more than portions corresponding to other reflection mirrors. The vehicle information display device according to claim 1 or 2. 4. The vehicle information according to claim 1, wherein display brightness of a display displayed on a display surface portion of the display device is changed in accordance with a change in illumination light amount of the backlight light source. 5. Display device.

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