JP2008296701A - Vehicle display - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular display for actualizing the display of a large image in a limited range without impairing a good appearance. <P>SOLUTION: The vehicular display 1 uses a combiner 3 for reflecting a display light from a display 2 to display a virtual image. An adjustment input part 7A inputs a change in the height of a user's view line to compress the display in the vertical direction so as to fall within a display range 201 as a remainder of a non-lighting range 202 appearing in a lighting possible range 200 with the command of a control part 6 as a display possible range is narrower. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention belongs to the technical field of vehicle display devices.

Conventionally, a display for forming an image display image of characters, figures, etc. is provided in the instrument panel, and an optical member for enlarging and displaying the image display image of the display in the direction of the occupant's eyes is provided. By selectively forming only a specific area within the displayable area of the display device according to the position of the occupant's eyes, the display image can be visually recognized regardless of the height position of the driver's eyes (for example, , See Patent Document 1).
JP 2001-18682 (page 2-5, full view)

  However, in the prior art, only a limited range within the lighting-enabled range is used as a display from the beginning. For this reason, there is a problem that the size of the display must be reduced for those who can use it without adjustment. In addition, when the display has a sufficient margin with respect to the top and bottom, there is a problem that the display size and the display range cannot be balanced and the appearance is deteriorated.

  The present invention has been made paying attention to the above-mentioned problems, and an object of the present invention is to provide a vehicular display capable of performing large display within a limited range while maintaining the appearance. There is to do.

  In order to achieve the above object, in the present invention, in a vehicle display device that displays display of a virtual image by reflecting the display light of the display device with a combiner, the displayable range can be achieved by changing the height of the user's line of sight. It is characterized by comprising display range compression means for compressing the display in the height direction in accordance with the narrowing of the screen.

  Therefore, in the present invention, it is possible to perform a large display within a limited range while maintaining the appearance.

  Hereinafter, an embodiment for realizing the vehicle display device of the present invention will be described based on Example 1 corresponding to the first and second aspects of the invention.

First, the configuration will be described.
FIG. 1 is an explanatory diagram of the vehicle display device according to the first embodiment.
The vehicle display device 1 according to the first embodiment includes a display device 2 and a combiner 3 as main components.
The display 2 emits display light toward the combiner 3 by displaying a real image having luminance on the display surface.

Further, the display device 2 is arranged inside the instrument panel 8 and has a structure in which display light is emitted upward from an opening 81 provided in the instrument panel 8. The opening 81 is provided on the upper surface of the instrument panel 8 on the back side of the meter 5 and the meter hood 4.
The combiner 3 is provided at a portion of the opening 81 provided in the instrument panel 8 and reflects the display light from the lower display 2 toward the eye point A (B, C) of the driver.
Moreover, it is preferable that the combiner 3 can see the vehicle front through the combiner 3 as a half mirror.

FIG. 2 is a block diagram of a portion related to display adjustment of the vehicle display device according to the first embodiment.
The portion relating to the display adjustment of the vehicle display 1 of the first embodiment is mainly configured by the display 2, the control unit 6, and the adjustment input unit 7.
The control unit 6 changes the display content, that is, compresses the image on the upper side or compresses the image on the lower side in accordance with the input of the eye point from the adjustment input unit 7.
The adjustment input unit 7 is an input unit that inputs a driver's eye point height for adjustment. The input may be an input using a turning switch or the like, or an automatic input using a sensor or the like.

The operation will be described.
[Action to display large size within a limited range]
FIG. 3 is an explanatory diagram illustrating an adjustment state of display on the vehicle display device according to the first embodiment.
As shown in FIG. 1, the vehicle display device 1 according to the first embodiment is initially set so that the display is maximized with respect to the display device 2 around the middle with reference to the middle A of the eye height (see FIG. 1). 3 (a)).
Then, the driver performs an operation input according to the height of the line of sight with the adjustment input unit 7, and outputs a control command from the control unit 6 to the display 2 to adjust the display.
Next, when the height of the line of sight increases as shown in FIG. 1B, the lit range 200 of the display 2 moves upward as shown in FIG. Come off.

In the first embodiment, the part of the lightable range 200 that deviates to the top of the combiner 3 is set as the non-lighting range 202 of the display 2 that does not perform display.
Then, the display is compressed downward so that the display content fits within the display range 201 where the remaining height of the lightable range 200 becomes small. That is, the display height direction is reduced (see FIG. 3B).
As a result, even if the height of the line of sight is changed to B, the entire display can be shown without losing the content of the display, and the display is enlarged within a limited range while maintaining the appearance. I do.

Next, when the height of the line of sight increases as shown in FIG. 1C, the illuminable range 200 of the indicator 2 moves downward and is hidden by the meter hood 4 as shown in FIG. In addition, the display is missing.
In this case, the lower part hidden by the meter hood 4 in the lightable range 200 is set as the non-lighting range 202 of the display 2 that does not perform display.

Then, the display is compressed upward so that the display content fits in the display range 201 where the height of the remaining lightable range 200 becomes smaller. That is, the display height direction is reduced (see FIG. 3C).
As a result, even if the height of the line of sight is changed to C, the entire display can be shown without losing the contents of the display, and the display is enlarged within a limited range while maintaining the appearance. I do.

When the character height is reduced upward or downward, the character position is not changed in the horizontal direction. For the display contents whose meaning changes if the aspect ratio such as a perfect circle is not maintained with symbols or the like, the entire display is reduced, and a margin is formed above or below the entire display.
If the display content is missing and cannot be read, the meaning is not understood, but if the character height is reduced, there is no vignetting and the entire display can be seen, so the display content is not lost.

FIG. 4 is an explanatory view showing an adjustment state of the display of the vehicle display device. FIG. 5 is an explanatory diagram of a vehicle display.
For example, in order to make the display visible even when the eye height is changed, such as eye height B where the eye becomes higher and eye height C where the eye becomes lower than the center eye height A, As shown in FIGS. 4 and 5, it can be considered that the entire display is made small and the entire lighting range 200 is displayed at any eye height (see FIGS. 4 and 5).

However, as shown in FIG. 4, the allowance located above or below the lightable range 200 becomes large and stands out, so that the appearance is not so good.
In Example 1, since the reflective surface which can be displayed of the combiner 3 is effectively used and displayed as compared with those shown in FIG. 4 and FIG. Further, the display becomes larger than those in FIGS. 4 and 5 and the visibility is improved.

FIG. 6 is an explanatory view showing an adjustment state of the display of the vehicle display device. FIG. 7 is an explanatory diagram of a vehicle display.
Further, for example, in order to make the display visible even when the eye height is changed, such as eye height B where the eye becomes higher and eye height C where the eye becomes lower than the center eye height A. As shown in FIGS. 6 and 7, it can be considered that the entire displayable range 200 is displayed at any eye height by changing the display position (see FIGS. 6 and 7).

However, in this case, it is necessary to make the display device 2 having a size including all display positions, and when viewed from the display device 2, there is a useless range that is not always used, and costs and space are reduced. Will be inefficient.
In the first embodiment, the display device 2 is smaller than those shown in FIGS. 6 and 7, so that the cost and space efficiency can be improved.

FIG. 8 is an explanatory diagram showing an adjustment state of the display of the vehicle display device. FIG. 9 is an explanatory diagram of a vehicle display.
Further, for example, in order to make the display visible even when the eye height is changed, such as eye height B where the eye becomes higher and eye height C where the eye becomes lower than the center eye height A. As shown in FIGS. 8 and 9, it is possible to change the display position and display the entire lighting range 200 at any eye height (see FIGS. 6 and 7). Further, in the examples shown in FIGS. 8 and 9, the display is made small to make an adjustment allowance.

However, in this case as well, the display is reduced, but it is necessary to make the display 2 of a size including all display positions, and even if it is not as large as shown in FIGS. In other words, there is a useless range that is not always used, which is inefficient in terms of cost and space.
In Example 1, compared with what is shown in FIG. 8, FIG. 9, a display can be enlarged and visibility can be improved.

Next, the effect will be described.
In the vehicle display of the first embodiment, the effects listed below can be obtained.

  (1) In the vehicle display 1 that reflects the display light of the display 2 by the combiner 3 and displays a virtual image display, a change in the height of the user's line of sight can be input by the adjustment input unit 7 and displayed. The display is compressed in the height direction so that the display is stored in the display range 201 which is the remaining of the non-lighting range 202 generated in the lightable range 200 according to the command of the control unit 6 in accordance with the narrowing of the range. Thus, it is possible to perform large display within a limited range while maintaining the appearance.

  (2) In (1), when the upper part of the displayable range (lighting enabled range 200) becomes an invalid display range (non-lighting range 202), the display range compression means moves the display downwards to the remaining When compression is performed so that it falls within the effective display range (display range 201), and the lower part of the displayable range (lighting possible range 200) becomes an invalid display range (non-lighting range 202), the display remains upward. Since the compression is performed so that it falls within the effective display range (display range 201), it is possible to perform a large display within a limited range while preventing an upper or lower portion of the display from being lost and impairing the appearance.

  As mentioned above, although the vehicle display device of the present invention has been described based on the first embodiment, the specific configuration is not limited to these embodiments, and the invention according to each claim of the claims. Design changes and additions are allowed without departing from the gist.

For example, the combiner according to the first embodiment may perform total reflection or may be a half mirror.
Further, for example, the adjustment input unit 7 according to the first embodiment may be a unit that automatically determines the position of the driver's eyes with a sensor.

It is explanatory drawing of the display for vehicles of Example 1. FIG. It is a block diagram of the part regarding the display adjustment of the indicator for vehicles of Example 1. FIG. It is explanatory drawing which shows the adjustment state of the display of the indicator for vehicles of Example 1. FIG. It is explanatory drawing which shows the adjustment state of the display of the indicator for vehicles. It is explanatory drawing of the display for vehicles. It is explanatory drawing which shows the adjustment state of the display of the indicator for vehicles. It is explanatory drawing of the display for vehicles. It is explanatory drawing which shows the adjustment state of the display of the indicator for vehicles. It is explanatory drawing of the display for vehicles.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle display device 2 Display device 3 Combiner 4 Meter hood 5 Meter 6 Control part 7 Adjustment input part 8 Instrument panel 81 Opening part 200 Lighting possible range 201 Display range 202 Non-lighting range

Claims (2)

In a vehicle display that reflects the display light of the display by a combiner and displays a virtual image display,
The display range compression means for compressing the display in the height direction according to the change in the height of the user's eye line, the displayable range becomes narrow,
A vehicle display device characterized by that. The vehicle display device according to claim 1,
The display range compression means includes
When the upper part of the displayable range becomes an invalid display range, the display is compressed downward to fit within the remaining valid display range,
When the bottom of the displayable range becomes an invalid display range, the display is compressed upward to fit within the remaining valid display range.
A vehicle display device characterized by that.

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