JP4649931B2 - Vehicle information display device - Google Patents

Description

  The present invention relates to a vehicle information display device in which an information display screen and a touch operation surface are separated, and belongs to the field of erroneous operation prevention technology.

  A vehicle such as an automobile is provided with an information display device provided with a transparent touch panel (touch operation surface) on the surface of a liquid crystal display (information display screen) or the like for information display and operation of a navigation device or an audio device, for example. There is.

  This information display device is provided, for example, at a position relatively close to the passenger on the instrument panel so that the fingertip of the passenger reaches the touch panel, but in such an installation environment, a driver who is paying close attention while traveling When looking at the information displayed on the display, the focus of the eye must be switched from a distance to a near point, which causes problems such as eye fatigue.

  In order to deal with this problem, for example, in Patent Document 1, a transparent liquid crystal and a touch panel that can be switched between a transparent state and a display state are provided in front of a predetermined distance of the display, and information such as a map is provided. Is displayed on the back display to ensure visibility, and the operation switch display section for function selection is displayed on the front transparent liquid crystal to ensure operability and touched on the touch panel on the front surface. What has been made to make it compatible with operability and operability is disclosed.

JP 2004-126354 A

  However, in the information display device described in Patent Document 1, an expensive transparent liquid crystal is required separately, which increases the cost and complicates display control. Further, since the operation switch display section is displayed on the transparent liquid crystal, there is no good touch panel that allows the operation switch display section of the screen display to be operated as it is while viewing the screen display of the display. That is, when the occupant operates, the operation switch display unit displayed on the transparent liquid crystal in front must be recognized again.

  Therefore, the inventors of the present application have examined, a configuration completely different from the above-mentioned Patent Document 1, that is, a configuration in which the operation switch display unit is displayed on the display without using the transparent liquid crystal and the display and the touch panel are separated. Thus, it has been found that both visibility and operability can be achieved while ensuring the goodness of the touch panel described above.

  However, such a configuration causes the following problems.

  That is, as shown in FIG. 22 (horizontal sectional view of the display of the information display device and the touch panel), for example, when the operation switch display unit x is displayed on the display 100, the touch panel 101 corresponding to the operation switch display unit x is displayed. The sensitive area y (shown in FIG. 22 but actually transparent and cannot be recognized by the operator) is generally the same size and shape as the switch display part x and the switch display part x in front view. However, since the information display device is usually provided between the left seat and the right seat, the operator views the operation switch display section x on the display 100 obliquely as indicated by an arrow, for example. It will be. Therefore, when the operator is seated on the left seat, for example, the operation switch display section x and the sensitive area y are displaced from the direction of the operator as shown in FIG. Even when a person's finger touches the touch panel 101 so as to overlap the left end of the operation switch display part x, the touched area y on the touch panel 101 is not touched, and the function corresponding to the operation switch display part x operates. Will not.

  As shown in FIGS. 24 and 25, for example, when a plurality of operation switch display parts x1, x2, and x3 are displayed on the display 100, as in the case where only one operation switch display part is displayed, Corresponding to these, three sensitive areas y1, y2, and y3 are set on the touch panel 101. In this case, for example, when the operator's finger touches the operation switch display unit x2, the touch panel 101 is touched. The sensitive area y1 corresponding to the operation switch display unit x1 is touched, and the function corresponding to the operation switch display unit x1 is activated.

  In addition, these problems may easily occur due to, for example, vehicle shake or finger tremors, and are particularly noticeable when the operation switch display unit is small.

  Accordingly, an object of the present invention is to provide a vehicle information display device capable of preventing an erroneous operation during a touch operation on the touch operation surface in an information display device in which the information display screen and the touch operation surface are separated. To do.

  In order to solve the above-mentioned problems, the present invention is configured as follows.

An invention according to claim 1 of the present application is an information display device installed in a vehicle, an information display screen on which display information including an operation switch display unit is displayed, and an operator than the information display screen. A transparent touch operation surface arranged at a distance close to the position and a portion corresponding to the operation switch display portion displayed on the information display screen on the touch operation surface when the switch display is made. A signal output unit that outputs a signal corresponding to the unit, an operation operation detection unit that detects an operation operation of the operator, a seating position detection unit that detects a seating position of the operator, and the operation operation detection unit when the operating movement is detected, display only the display mode of the display information to be operated by the operator of the display information is changed to direct toward the detected operator above the seating position detecting means Characterized in that the state changing means is provided.

Further, in the invention described in claim 2 of the present application, in the invention described in claim 1 , the display form changing means is the operator detected by the sitting position detecting means in the display information to be operated by the operator. It is characterized by changing so that only the display form of the display information on the side is oriented.

The invention according to claim 3 of the present application is an information display device installed in a vehicle, and an information display screen on which display information including an operation switch display unit is displayed, and an operator than the information display screen. A transparent touch operation surface arranged at a distance close to the position and a portion corresponding to the operation switch display portion displayed on the information display screen on the touch operation surface when the switch display is made. A signal output unit that outputs a signal corresponding to the unit, an operation operation detection unit that detects an operation operation of the operator, an operation determinism detection unit that detects a determinism that the operator performs the operation , and an operator's seating Display of display information detected when the degree of definiteness is detected by the operation deterministic degree detecting unit when the operation operation of the operator is detected by the sitting position detecting unit for detecting the position and the operation movement detecting unit top form Characterized in that the display form changing means for changing to direct toward been operator detected by the seating position detecting means is provided.

Further, in the invention according to claim 4 of the present application, in the invention according to claim 3 , the display form changing means is a display form of the display information detected by the operation confirmation degree detecting means that the degree of certainty is relatively low. Is directed to a relatively small amount, and the display form of the display information detected when the determinism is relatively high by the detecting means is changed to be directed to a relatively large amount.

Further, in the invention according to claim 5 of the present application, in the invention according to claim 3 or 4 , the degree of definiteness is relatively determined by the operation deterministic degree detecting means so that the change of the display form by the display form changing means becomes clear. And a second display form changing means for changing the display form of the display information detected to be low.

The invention according to claim 6 of the present application is the invention according to any one of claims 1 to 5, wherein the display form changing means is configured to detect the operation action of the operator by the operation action detecting means. Until the predetermined time elapses, the change amount and the change speed of the display form are reduced.

  Next, the effect of the present invention will be described.

  First, according to the first aspect of the present invention, in the vehicle information display device in which the information display screen and the touch operation surface are spaced apart from each other, when the operation operation of the operator is detected, the display is performed. Since the information display mode is changed so as to be directed toward the operator, the operator surely touches the portion corresponding to the operation switch display portion displayed on the information display screen on the touch operation surface. This will prevent erroneous operation.

  In addition, since the touch operation surface is disposed at a position closer to the operator than the information display screen, the visibility of the information display screen and the operability with respect to the touch operation surface can be compatible. In addition, since it is not necessary to display display information such as an operation switch display unit on the touch operation surface, display control is not complicated, and the cost is lower than the case of displaying on both.

In this case, according to the present invention, since only the display form of the display information that is the operation target of the operator among the display information is changed so as to be directed toward the operator, the uncomfortable feeling due to the change of the display form is suppressed. The Rukoto.

Further, according to the invention described in claim 2, among the display information to be operated by the operator, only the display mode of the display information on the side of the detected operator in sitting position detection means toward the operator since the change to direct Te, the uncomfortable feeling when the operator operation is suppressed, it is possible to suppress uncomfortable feeling by the display form changing.

According to the third aspect of the present invention, as in the first aspect of the present invention, the display form of the display information is changed so as to be directed toward the operator. The visibility of the display screen and the operability with respect to the touch operation surface can both be achieved, and in addition, the cost is reduced. In particular, according to the present invention, since the display form of the display information detected when the operator's operation is performed with a relatively high degree of definiteness is changed so as to be directed toward the operator, it is even more reliable. Incorrect operation will be prevented.

In this case, according to the invention described in claim 4 , the display form of the display information detected when the degree of determination that the operator's operation is performed is relatively low is directed at a relatively small amount, and the determination is performed. Since the display form of the detected display information is changed so as to be directed by a relatively large amount when the degree is relatively high, erroneous operation is thereby prevented more reliably.

Further, according to the invention described in claim 5 , the display form of the display information detected when the degree of definiteness of the operation by the operator is relatively low is changed so that the change of the display form becomes clear. Therefore, this also prevents erroneous operations even more reliably.

According to the invention described in claim 6 , in the invention of each of the above claims , the change amount and the change speed of the display form are reduced until a predetermined time elapses after the operation operation of the operator is detected. Therefore, the uncomfortable feeling that the display form is changed in the initial stage of the operation operation in which it is not clear whether the operator really performs the touch operation is effectively suppressed.

  As shown in FIG. 1, a vehicle 1 according to the present embodiment is a so-called left-hand drive vehicle, and a steering wheel 2 and various instruments 3 ... 3 are arranged in front of a left front seat (that is, a driver's seat). The hazard lamp switch 5, the air conditioning control switches 6, 6 and the information display according to the present invention are provided on the instrument panel 4 in front of the space between the left front seat and the right front seat (ie, the front passenger seat). A device 10 or the like is provided.

  As shown in FIG. 2, the information display device 10 is incorporated in a circular opening formed in the center portion of the instrument panel 4. The information display device 10 includes a liquid crystal display 11 that is fixed to the frame 4 a of the instrument panel 4, that is, a display screen, and a touch panel 12, that is, an operation screen. Both members 11 and 12 are formed in a circular shape when viewed from the front.

  As shown in FIG. 3, the liquid crystal display 11 is at a position relatively far from the occupant seated on the seat in the passenger compartment, and the touch panel 12 is at a position relatively close to the occupant seated on the seat. They are arranged separately. The touch panel 12 on which the operator who is an occupant performs a contact operation with the finger C is made of a transparent material so that the operator can clearly observe various images displayed on the display 11 at the back through the touch panel 12. It has become. The touch panel 12 has a spherical surface and is positioned so as to float away from the display 11 toward the operator by a predetermined distance. The touch panel 12 detects a contact position by an operator's contact operation and outputs a signal related to the contact position.

  As shown in FIG. 2, a plurality (six in the illustrated example) of infrared sensors 21 to 26 are disposed around the information display device 10. Among them, the first to third infrared sensors 21 to 23 arranged vertically in the frame member 4a use the areas B1, B2, and B3 elongated in the left-right direction in the space immediately above the touch panel 12 as detection areas. On the other hand, the fourth to sixth infrared sensors 24 to 26 arranged side by side on the frame member 4a use the areas B4, B5, and B6 that are elongated in the vertical direction in the space immediately above the touch panel 12 as detection areas.

  These infrared sensors 21 to 26 are pyroelectric infrared sensors, and the smaller the amount of received infrared light, that is, the objects in the detection areas B1 to B6 (here, the operator who is trying to touch the touch panel 12). As the abundance (or penetration) of the finger C) increases, a larger voltage (or current) is generated.

  As shown in FIG. 4, the control unit 30 of the information display device 10 inputs a signal related to the contact position detected by the touch panel 12 and a signal related to the abundance of the object detected by the infrared sensors 21 to 26. Based on this signal, an image to be displayed on the display 11 is determined, and a control signal is output to the display 11 so that the image is displayed on the display 11.

  In that case, as shown in FIG. 5, the control unit 30 is the infrared sensor that generates the largest voltage among the first to third infrared sensors 21 to 23, that is, the detection areas B1 to B3 extending in the left-right direction. Among the infrared sensor having the largest amount of finger C of the operator and the fourth to sixth infrared sensors 24 to 26, the infrared sensor generating the largest voltage, that is, the detection area B4 extending in the vertical direction. A plurality of (9 in the illustrated example) areas that divide the space immediately above the touch panel 12, as shown in FIG. 6, based on the combination with the infrared sensor having the largest amount of the finger C of the operator in B6 In which area of Z1 to Z9, the operator's finger C is determined. In other words, the accuracy (probability) that the operator's contact operation to the touch panel 12 is performed is determined.

  Then, the control unit 30 has a relative probability that the operator's contact operation to the touch panel 12 is performed in the area Z where the operator's finger C is present (the sign Z is used when comprehensively referring to the areas Z1 to Z9). It is determined that the region Z is very high. Conversely, the control unit 30 determines that the region Z where the operator's finger C does not exist is the region Z in which the operator's contact operation with the touch panel 12 is relatively low. Of course, this determination changes every moment according to the movement of the finger C accompanying the operation of the operator.

  Here, the first region Z1 to the ninth region Z9 are the detection areas B1, B2, and B3 of the first to third infrared sensors 21 to 23 and the fourth to sixth infrared sensors 24 to 26 shown in FIG. The detection areas B4, B5, and B6 are overlapping portions.

  When two adjacent infrared sensors generate the maximum voltage (or maximum current), the detection areas B and B of both infrared sensors (the symbol B is used when the detection areas B1 to B6 are collectively included). It is determined that the operator's finger C exists in the vicinity of the boundary between the two regions Z and Z.

  In addition, the control unit 30 determines the distance between the operator's finger C and the surface of the touch panel 12 based on the voltage generated by the infrared sensor related to the region Z where it is determined that the operator's finger C exists, that is, the operator's finger C. It is determined how close the finger C is to the surface of the touch panel 12.

  Furthermore, the control unit 30 determines whether the operator's finger C is in proximity to the touch panel 12 or away from the touch panel 12 based on a temporal change in the distance between the operator's finger C and the surface of the touch panel 12. Judgment is made, and the proximity speed or separation speed at that time is judged.

  Then, the control unit 30 determines from which side the operation operation of the operator is performed with respect to the touch panel 12 based on the transition of the region Z in which it is determined that the operator's finger C exists. In other words, it is determined whether the operator is seated, that is, whether the operator is a driver sitting in the driver's seat or another passenger sitting in the passenger seat.

  That is, as shown by the arrow A in FIG. 6, when the area Z determined that the operator's finger C is present changes from left to right, for example, in the order of the areas Z4, Z5, and Z6, the operator It is determined that the driver is seated on the left front seat. On the other hand, when the area Z determined that the operator's finger C is present changes from right to left, for example, in the order of the areas Z3, Z2, and Z1, as shown by an arrow A in FIG. It is determined that the passenger is another passenger seated on the right front seat.

Next, a change in the form of an image displayed on the liquid crystal display 11, which is a characteristic part of the present invention, will be described. First, a configuration that is a premise for changing the image form will be described. For example, when the electric system of the vehicle 1 is turned on, an image as shown in FIG. 2 is displayed on the display 11. That is, an elliptical switch image on which characters “START” are written is displayed at the center of the display 11. The operator can clearly see the switch image through the transparent touch panel 12. When the operator touches the surface of the touch panel 12 in this state, the display on the display 11 is switched to a display as shown in FIG.

  Here, the control unit 30 sets a sensitive area corresponding to the switch image on the touch panel 12. If the operator does not touch the touch panel 12 within the sensitive area, the display on the display 11 is not switched. In other words, the control unit 30 validates the contact operation only when the contact position detected by the touch panel 12 is within the sensitive area.

  In general, the sensitive area is an area having almost the same shape as the switch image displayed on the display 11, and when the information display device 10 is viewed from the front, the switch image on the display 11 and the sensitive on the touch panel 12. The areas are set so as to substantially overlap with each other. As described above, the situation is the same in the other switch image contact operations described below, and thus detailed description thereof will be omitted.

  The display on the display 11 shown in FIG. 7 includes an elliptical switch image X1 on which characters “audio” are written and an elliptical shape on which characters “car navigation” are written, which are arranged one above the other. The switch image X2 is included.

  Here, in the drawings of FIG. 7 and the subsequent drawings, the alternate long and short dash lines on the touch panel 12 represent the left and right center lines and the upper and lower center lines (not visible) of the touch panel 12. 7 and the following drawings, in FIGS. 8, 12, 14 to 17, 19, and 21, the display 11 and the touch panel 12 become narrower and smaller in the width direction, and the left and right center lines of the touch panel 12. Is slightly curved to the right because these examples show the case where the information display device 10 is viewed from the driver seated in the driver's seat. That is, the driver on the left side of the information display device 10 sees the display 11 and the touch panel 12 of the information display device 10 from the left side. As a result, for example, as shown in FIG. 8, from this angle, the sensitive regions Y1 and Y2 (not visible) on the touch panel 12 that are originally set in front of the switch images X1 and X2 are not visible. It does not coincide with X1 and X2, and there is a deviation.

  In this state, when the operator touches the “audio” switch image X1 (more specifically, touches the sensitive area Y1 on the touch panel 12), the display on the display 11 is as shown in FIG. On the other hand, when the operator touches the switch image X2 of “car navigation” (more specifically, touches the sensitive area Y2 on the touch panel 12), the display on the display 11 is as shown in FIG. Switches to the correct display.

  The display on the display 11 shown in FIG. 9 includes a title image X11 on which characters “audio” are arranged at the top, and “FM” arranged below and above the title image X11. It includes five oval switch images X12 to X16 each having the letters “CD”, “HDD”, “TV”, and “AM”.

  Here, the title image X11 is not an image targeted for the operator's contact operation, but only the switch images X12 to X16 are images targeted for the operator's contact operation. In this state, when the operator performs a touch operation on the switch image X12 of “FM”, the control unit 30 outputs a predetermined operation signal to the FM radio 41 as shown in FIG. Start up. Similarly, when the operator performs a touch operation on the switch image X13 of “CD”, the switch image X14 of “HDD”, the switch image X15 of “TV”, or the switch image X16 of “AM”, the control unit 30 performs CD ( A predetermined operation signal is output to the compact disc) player 42, the HDD (hard disc) player 43, the television 44, or the AM radio 45 to activate them.

  On the other hand, the display 11 shown in FIG. 10 displays a title image X21 with the characters “car navigation” placed at the top and “name” placed vertically below each other. 3 ”, and three oval-shaped switch images X22 to X24 each having characters“ Search by address ”,“ Search by address ”, and“ Search by registration ”.

  Here, the title image X21 is not an image that is an object of an operator's contact operation, but only the switch images X22 to X24 are images that are an object of an operator's contact operation. In this state, when the operator touches any one of the switch images X22 to X24, the control unit 30 outputs a predetermined operation signal to the car navigation system 46 as shown in FIG. System 46 is activated.

  For example, when the switch operation X23 of “Search by address” is touched on the “car navigation” function selection screen shown in FIG. 10, the display on the display 11 is switched to the display shown in FIG. The display on the display 11 shown in FIG. 11 shows the title image X25 arranged at the top, with the characters “Search by address” written on it, and the selected characters arranged side by side at the bottom of the title image X25. It includes a display window image X26 and a search switch image X27, and a group of character selection switch images X28 arranged further below.

  Here, the title image X25 and the selected character display window image X26 are not images to be touched by the operator, but the search switch image X27 and the character selection switch image X28 are to be touched by the operator. It is an image. Now, as an operator, the driver on the left side of the information display device 10 selects “ka”, and then tries to select “mi”, and brings the finger C close to the touch panel 12 from the left side. ”Is assumed to be in proximity to the second region Z2 (see FIG. 6) of the touch panel 12 to which the switch image X28 belongs.

  When the situation at this time is viewed from the viewpoint of the driver, it is as shown in FIG. That is, since the driver on the left side of the information display device 10 sees the display 11 and the touch panel 12 of the information display device 10 from the left diagonal, the display 11 and the touch panel 12 become narrow and small in the width direction. Similarly, the title image X25, the selected character display window image X26, the search switch image X27, and the character selection switch image X28 are also narrowed in the width direction and become difficult to see because they are crowded.

  On the other hand, when the operator reaches out the touch panel 12 and brings the finger C close to the touch panel 12 in an attempt to touch the switch image X28 of “mi”, the control unit 30 receives signals from the infrared sensors 21 to 26. (More specifically, based on an increase in the voltage generated by any one of the infrared sensors), it is possible to detect the operation of the operator with respect to such a touch panel 12.

  Further, the control unit 30 reaches the touch panel 12 from the left side, touches the finger C to the touch panel 12 from the left side, and tries to touch the “mi” switch image X28. When the finger C is brought close to the second region Z2 (see FIG. 6) of the touch panel 12 to which the image X28 belongs from the left side, the generated voltage is increased based on the signals from the infrared sensors 21 to 26. Based on the change of the infrared sensor), it is possible to determine from which side the operation operation of the operator with respect to the touch panel 12 is performed, that is, who is the operator.

The control unit 30 changes the image form when detecting the operation action of the operator . First, a reference example of the image form change will be described. In this reference example, FIG. As shown, the title image X25, the selected character display window image X26, the search switch image X27, and the character selection switch image group X28 displayed on the display 11 are directed toward the determined operator side. The form of the images X25 to X28 is changed.

  More specifically, even if the driver on the left side of the information display device 10 looks at the display 11 and the touch panel 12 of the information display device 10 from the left oblique direction, the image X25 to X28 looks the same as when facing the front. In addition, the images X25 to X28 are enlarged and enlarged in the width direction at a predetermined ratio. In that case, not only the outline shape of the title image X25, the display window image X26, or the switch images X27 and X28 is enlarged in the width direction, but also the characters and the character intervals described in these images X25 to X28 Expand and expand in the width direction.

  Further, in this case, in order to increase the accuracy in which the images X25 to X28 are viewed in the same manner as when facing directly, the enlargement ratio in the width direction of the image on the side far from the operator is on the side close to the operator. It is larger than the enlargement ratio in the width direction of the image. For example, if the operator is a driver seated on the left side of the information display device 10 as shown in the figure, the images on the left side (“residential”, “wa”, “ra”, The enlargement rate in the width direction is reduced as the value of “O” is increased, and the enlargement rate in the width direction is increased for the images on the right side (“search”, “a”, “ka”, “i”, etc.). When the operator is another occupant seated on the right side of the information display device 10, the situation is reversed.

  Thereby, as shown in FIG. 14, the visibility of the images X25 to X28 displayed on the “Search by address” screen is improved, and the touch panel 12 is touched while viewing the images X25 to X28 displayed on the display 11. An erroneous operation of an operator who tries to be suppressed is suppressed.

  That is, in this information display device 10, the display 11 on which various images are displayed and the touch panel 12 that is operated to be touched by the operator are arranged apart from each other by a predetermined distance in the longitudinal direction of the vehicle body. The touch panel 12 that the person actually attempts to touch with the finger C while viewing the image information displayed on the display 11 is positioned so as to float away from the display 11. Therefore, the operator does not match the visual sense obtained from the image information on the display 11 with the tactile sense obtained when the touch panel 12 is touched. On the screen, an erroneous operation is likely to occur in the touch operation of the touch panel 12 by unexpectedly touching an unneeded adjacent switch image X28. Therefore, as shown in FIG. 13, by directing the images X25 to X28 in the width direction or the like so as to be directed toward the operator, the operator can easily touch the images X25 to X28. Even in a situation where the touch panel 12 is positioned so as to float away from the display 11, the operability of the operator who tries to operate the touch panel 12 while viewing the image information displayed on the display 11. It was made to improve. At this time, the images X25 to X28 on the display 11 may be enlarged in the width direction and the sensitive areas corresponding to the images X25 to X28 on the touch panel 12 may be enlarged in the width direction.

  In particular, even if the information display device 10 is not in front of the operator and the operator looks at the display 11 obliquely from the side as shown in FIG. 12, as shown in FIG. Since the images X25 to X28 displayed on the display 11 are wide and easy to see in the same manner as when facing directly, visibility is ensured and an operator's erroneous operation is suppressed.

  In addition, in this case, since all the images X25 to X28 displayed on the display 11 are directed toward the operator (see FIG. 13), the operator does not feel uncomfortable and is good. Operability is ensured.

Next, a first image form change example according to the embodiment of the present invention will be described. It should be noted that in some of the image form modification examples described below, only the characteristic portions will be described, and the other configurations are the same as the preceding modification examples, and thus detailed description thereof will be omitted.

  As shown in FIG. 15, the area Z of the touch panel 12 detected as having a relatively high probability that the operator's contact operation to the touch panel 12 will be performed (in the illustrated example, the touch panel 12 to which the “mi” switch image X28 belongs. The image X28 on the display 11 corresponding to the second area Z2) may be directed toward the operator.

  More specifically, in FIG. 15, the third area Z3, the sixth area Z6, and the ninth area Z9 of the touch panel 12 that are detected that the probability that the operator's contact operation is performed is relatively low (see FIG. 6). The first area Z1 and the second area of the touch panel 12 that are detected that the switch image group X28 (line A to line A) on the display 11 corresponding to is disappeared and the contact operation of the operator is relatively high is detected. After the switch image group X28 on the display 11 corresponding to Z2, the fourth region Z4, the fifth region Z5, the seventh region Z7, and the eighth region Z8 (see FIG. 6) remains, Among the switch image group X28 having a relatively high operation accuracy, the switch image group X28 having a relatively high operation accuracy, that is, the “mi” switch image X28 and the surrounding switch image group X28 (“NA”, “ Right", Al, "only" is ", etc.) with each other to directed toward the operator portion shown enclosed by (the dotted line (not visible in FIG. 15)).

  In that case, the operator can easily see the switch image X28 that he / she wants to perform the contact operation, and can also reliably perform the contact operation on the touch panel 12.

Further, in this first image form change example, only the character selection switch image group X28 to be touched by the operator among the images X25 to X28 displayed on the display 11 is directed toward the operator. As a result (the title image X25 and the selected character display window image X26 are not enlarged in the width direction, etc.), good operability for the operator is ensured, and other occupants other than the operator use the display 11. Discomfort when viewed is reduced.

Next, a second image form change example according to the embodiment of the present invention will be described. As shown in FIG. 16, an image X <b> 28 on the display 11 corresponding to the region Z of the touch panel 12 detected as having a relatively low probability that the operator's contact operation to the touch panel 12 is relatively low (“ ”,“ To ”,“ wa ”,“ n ”, etc.) are directed toward the operator in a relatively small amount, and correspond to the region Z of the touch panel 12 detected as having a relatively high operation accuracy. The image X28 on the display 11 ("NA", "HA", "YO", "RU", etc. in the example) may be directed toward the operator in a relatively large amount.

  More specifically, in FIG. 16, the switch image group X28 (switch of “mi”) having the highest operation accuracy among the switch image groups X28 detected as having a relatively high probability that the operator will perform the contact operation. Image X28 and the surrounding switch image group X28 “ha”, “fu”, “ya”, “yo”, etc.) are directed to the operator by the largest amount, and the switch image group X28 having the next highest operation accuracy. (“NA”, “NE”, “RA”, “RE”, etc.) are directed to the operator by the next largest amount, and the switch image group X28 (“TA”, “TO”) having the lowest operation accuracy. , “Wa”, “n”, etc.) are directed to the operator in the smallest amount (the portion surrounded by a dotted line (not visible) in FIG. 16).

  In this case, the operator can easily perform the touch operation on the touch panel 12 by making it easier to see the switch image X28 that the user is about to perform the touch operation than the other switch images X28. .

  Further, as shown in FIG. 17, when the operator tries to touch the “mi” switch image X28 and brings the finger C closer to the “mi” switch image X28, the operator is directed toward the operator. In order to clarify the change in the form of the switch image X28 (in the example shown in the figure, the switch image X28 of “mi” and the surrounding switch image group X28 “ha”, “fu”, “ya”, “yo”, etc.) The form of the switch image X28 ("NA", "Ne", "RA", "RE", etc. in the example) detected when the operation accuracy is relatively low may be changed.

  More specifically, in FIG. 17, the size of the switch image group X28 (“mi”, “ha”, “fu”, “ya”, “yo”, etc.) that has the highest probability that the operator's contact operation will be performed. Is relatively large (portion surrounded by a dotted line (not visible) in FIG. 17), and other switch image groups X28 ("NA", "NE", "RA", "RE", etc.) Is relatively small and the width is further narrowed.

  In that case, change the form of the image X28 (“mi”, “ha”, “fu”, “ya”, “yo”, etc.) with high operation accuracy and the image X28 (“na”, “ne” with low operation accuracy). ”,“ Ra ”,“ re ”, etc.), the operator can more easily view the switch image X28 on which the operator is performing the contact operation than the other switch images X28. Thereby, the touch operation to the touch panel 12 can be performed even more reliably.

Next, a third example of changing the image form according to the embodiment of the present invention will be described. The “registered restaurant” selection screen shown in FIG. 18 is arranged at the top of the title image X29 on which the characters “registered restaurant” are written, and below the title image X29. The registered content display image X30, a scroll bar image X31 arranged vertically extending to the side thereof, and a destination designation switch image X32 arranged below the registered content display image X30. It is out.

  Here, the title image X29 and the registered content display image X30 are not images to be touched by the operator, but the scroll bar image X31 and the destination designation switch image X32 are to be touched by the operator. It is an image. Now, as an operator, a driver on the left side of the information display device 10 brings the finger C close to the touch panel 12 from the left side in an attempt to operate the scroll bar image X31.

  When the situation at this time is viewed from the viewpoint of the driver, it is as shown in FIG. That is, since the driver on the left side of the information display device 10 sees the display 11 and the touch panel 12 of the information display device 10 from the left diagonal, the display 11 and the touch panel 12 become narrow and small in the width direction. Similarly, the title image X29, the registered content display image X30, the scroll bar image X31, and the destination designation switch image X32 are also narrow and small in the width direction and become difficult to see.

  In that case, when the control unit 30 detects the operation operation of the operator, as shown in FIG. 20, the control unit 30 is the target of the operator's contact operation among the images X29 to X32 displayed on the display 11. The image of the scroll bar image X31 is changed so that the image on the left side where the operator is present, that is, the scroll bar image X31 is directed toward the operator among the images X31 and X32 to be (the scroll bar image X31 is Is becoming wider). In the example shown in the figure, the title image X29 and the destination designation switch image X32 are also widened toward the operator.

  FIG. 21 shows the situation at this time when viewed from the viewpoint of the driver. In other words, the scroll bar image X31 and the title image X29 and the destination designation switch image X32 appear to be the same size and form as when facing directly.

  Thereby, since the image which a form changes is limited, the discomfort when the passengers other than an operator look at the display 11 is further reduced. In addition, an image whose form is changed and an image whose form is not changed are arranged in various combinations, so that a design of the display 11 is interesting.

  In each of the image form change examples described above, the change amount and change speed of the image form may be reduced until a predetermined time elapses after the operation operation of the operator is detected. In that case, it is unclear whether the operator actually performs the contact operation or not, and it is uncomfortable that the form of the image changes at the initial stage of the operation operation. In particular, a passenger other than the operator uses the display 11. Discomfort when viewed is effectively reduced.

  As described above, according to the present invention, the operator can surely touch the portion corresponding to the operation switch display unit displayed on the information display screen on the touch operation surface, thereby preventing an erroneous operation. . In addition, since the touch operation surface is disposed at a position closer to the operator than the information display screen, the visibility of the information display screen and the operability with respect to the touch operation surface can be compatible. In addition, since it is not necessary to display display information such as an operation switch display unit on the touch operation surface, display control is not complicated, and the cost is lower than the case of displaying on both. In addition, an uncomfortable feeling at the time of operation by the operator is suppressed. In addition, a sense of incongruity due to the display form change is suppressed. In addition, both the suppression of the uncomfortable feeling at the time of the operation by the operator and the suppression of the uncomfortable feeling by changing the display form are compatible. Further, the uncomfortable feeling that the display form is changed at the initial stage of the operation operation in which it is not clear whether the operator really performs the touch operation is effectively suppressed.

  In addition to the above, in the information display device 10 according to the present embodiment, the touch panel 12 is arranged at a position closer to the operator than the liquid crystal display 11, so that the visibility of the liquid crystal display 11 and the operation on the touch panel 12 are performed. It can be compatible with sex. In addition, since the image display function is not added to the touch panel 12, the cost is not increased and the image display control is not complicated.

  The above embodiment is the best embodiment of the present invention, but it goes without saying that various modifications and changes can be made without departing from the scope of the claims. For example, in the above-described embodiment, the infrared sensors 21 to 26 are used for detection of an operation operation of the operator, determination of the accuracy with which the operator's contact operation is performed, determination of who the operator is, and the like. Instead of this, a camera that detects the direction of the line of sight of the operator is provided on the instrument panel 4, or a camera that detects the movement and position of the operator's hand and fingers is provided on the ceiling of the vehicle interior. May be. In addition, a voice recognition device that recognizes voice commands issued by the operator can be provided in the passenger compartment.

  The present invention suppresses an erroneous operation of an operator who tries to operate an operation screen while viewing image information displayed on the display screen in a vehicle information display device having a structure in which the display screen and the operation screen are separated from each other. Therefore, a wide range of industrial applicability is expected in the technical field of vehicle information display devices mounted on vehicles such as automobiles.

It is a perspective view of the vehicle interior front which shows the installation position of the information display device for vehicles concerning the embodiment of the present invention. It is a front view of the information display device. It is the sectional view on the AA line of FIG. It is a control system figure of the above-mentioned information display device. It is a combination pattern figure of the infrared sensor with which the said information display apparatus was equipped. It is a front view of the touch panel which shows the position of area | region Z1-Z9 obtained from the said combination pattern figure. It is a front view of the initial screen of the information display device. It is the left perspective view which looked at the above-mentioned initial screen from the driver's seat. It is a front view of the "audio" model selection screen of the information display device. Similarly, it is a front view of the “car navigation” function selection screen. Similarly, it is a front view of the “search by address” screen. It is the left perspective view which looked at the "search by address" screen from the driver's seat. FIG. 12 is a front view of the “search by address” screen of FIG. 11 according to a reference example of image form change . It is the left perspective view which looked at the "search by address" screen concerning the above-mentioned reference example from the driver's seat. It is the left perspective view which looked at the "search by address" screen which concerns on the 1st example of image form change of embodiment of this invention from the driver's seat. It is the left perspective view which looked at the "search by address" screen which concerns on the 2nd example of image form change of embodiment of this invention from the driver's seat. It is the left perspective view which looked at the "search by address" screen appearing from FIG. 16 from the driver's seat. It is a front view of the “registered meal restaurant” selection screen of the information display device. It is the left perspective view which looked at the above-mentioned "registered restaurant" selection screen from the driver's seat. FIG. 19 is a front view of the “registered meal restaurant” selection screen of FIG. 18 according to a third image form modification example of the embodiment of the present invention . It is the left perspective view which looked at the "registered meal restaurant" selection screen which concerns on the said 3rd image form change example from the driver's seat. It is explanatory drawing of the problem in the conventional information display apparatus (the 1). It is explanatory drawing of a problem similarly (the 2). It is explanatory drawing of a problem similarly (the 3). Similarly it is explanatory drawing of a problem (the 4).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle 10 Information display apparatus 11 Liquid crystal display (display screen)
12 Touch panel (operation screen)
21-26 Infrared sensor 30 Control unit (signal output means, operation motion detection means, seating position detection means, display form change means, operation determinism detection means, second display form change means)

Claims (6)

An information display device installed in a vehicle, including an information display screen on which display information including an operation switch display unit is displayed, and a transparent display arranged at a position closer to the operator than the information display screen A touch operation surface, and a signal output means for outputting a signal corresponding to the switch display unit when a portion corresponding to the operation switch display unit displayed on the information display screen is touched on the touch operation surface; The operation information detecting means for detecting the operator's operation action, the sitting position detecting means for detecting the operator's seating position, and when the operator's operation action is detected by the operation action detecting means, the display information that only the display mode of the display information to be among the operator's operation target is is provided a display form changing means for changing to direct toward the detected operator above the seating position detecting means The vehicle information display apparatus according to symptoms. The display form changing means changes the display information to be operated by the operator so that only the display form of the display information on the operator side detected by the seating position detecting means is directed toward the operator. The vehicle information display device according to claim 1. An information display device installed in a vehicle, including an information display screen on which display information including an operation switch display unit is displayed, and a transparent display arranged at a position closer to the operator than the information display screen A touch operation surface, and a signal output means for outputting a signal corresponding to the switch display unit when a portion corresponding to the operation switch display unit displayed on the information display screen is touched on the touch operation surface; Operation operation detecting means for detecting the operation action of the operator, operation confirmation degree detecting means for detecting the degree of confirmation that the operator's operation is performed, seating position detecting means for detecting the seating position of the operator, and the operation action An operator in which the display position of the display information detected by the operation deterministic detection unit when the operation operation of the operator is detected by the detection unit is detected by the seating position detection unit The display form changing means for changing to direct headed is provided a vehicle information display apparatus according to claim. The display form changing means is directed at a relatively small amount of display form of display information detected when the degree of definiteness is relatively low by the operation deterministic degree detecting means, and when the degree of determinism is relatively high by the detecting means 4. The vehicle information display device according to claim 3, wherein the display form of the detected display information is changed so as to be directed at a relatively large amount . The second display form changing means for changing the display form of the display information detected when the degree of determination is relatively low by the operation confirmation degree detecting means is provided so that the change of the display form by the display form changing means becomes clear. The vehicle information display device according to claim 3 or 4 , wherein the vehicle information display device is provided. The display form changing means reduces the change amount and the change speed of the display form until a predetermined time elapses after the operation action of the operator is detected by the operation action detecting means. The vehicle information display device according to any one of the above.

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