JP2021046197A - Display device and program - Google Patents

Abstract

To provide a display device which is easily attached and adjusted, allowing recognition of the information being displayed without gazing.SOLUTION: A display device 1 is provided, which includes a display part 13 for display according to the control by a display control part, and attaching means for attaching the display part at such a position that a vehicle driver can scarcely notice it when gazing frontward during driving. The scarcely noticeable position may be a position, for example, corresponding to the peripheral vision.SELECTED DRAWING: Figure 1

Description

The present invention relates to a display device or the like capable of recognizing a display change without the driver's gaze.

A head-up display is known as an in-vehicle display device. This head-up display projects a display image on a windshield or a reflector (for example, a combiner) provided on a dashboard to provide various information to the driver. (See, for example, Patent Document 1.).

Japanese Unexamined Patent Publication No. 2013-242346

Usually, such a head-up display projects a display image on an area that the driver can gaze at while driving. Therefore, in order to secure the front view and satisfy the safety standards, it is necessary to firmly attach a large projection device to the vehicle.

Therefore, an object of the present invention is to provide a display device or the like that is easy to install and adjust and can recognize displayed information without gazing at it. This purpose is achieved, for example, by combining the features described in the independent terms in the claims. Dependent terms also define, for example, further advantageous embodiments of the present invention.

(1) In order to solve the above problems, in the present invention, the display unit that displays according to the control by the display control unit and the position where the display unit looks vague when the vehicle driver gazes at the front while driving. The display device may be provided with mounting means to be attached to the device. In this way, the driver can recognize the change in the display on the display unit without paying attention to the display device.

The "forward" may be, for example, the direction of the line of sight that the driver sitting in the driver's seat faces when driving on a straight road, and in particular, the direction of the line of sight when looking at a vehicle 40 m to 50 m ahead. Further, as the "gaze", for example, it is preferable to focus the eyes on the object and stare at it.

The "blurred" is, for example, a state in which the information is not clearly visible and is vaguely visible, and the "position that looks vague" is, for example, a position in which the details of the displayed information are difficult to see. For example, the "position that looks vague" should be a position that is in the field of view but out of focus when the vehicle driver gazes at the front, and is generally in the vertical direction from the direction of the line of sight when facing forward. It is particularly preferable that the position is deviated by 10 degrees or more. The "position that looks vague" may be the left and right parts in the visual field, but it is desirable that the "positions that look vague" are the upper and lower parts of the central visual field in the visual field.

The mounting means may be configured to mount the display unit at a position that looks vague, and the display unit and the mounting means may be directly connected, but if the mounting means is connected via a separate member that interposes the two. Good. Then, it is particularly preferable that the display control unit is stored in a part of the separate member, and the stored display control unit and the display unit are connected to control the display of the display unit.

(2) The position that looks vague should be the position corresponding to the peripheral visual field. In this way, the change in the display can be recognized in the peripheral visual field.

(3) In the present invention, the display unit may be configured to transmit light at least in a non-display state. In this way, when the display unit is not displayed, the display unit does not block the view in front of the display unit, and the driver looks at the other side of the display unit and acquires information within a vague range. can do.

(4) It is further preferable that the display unit is a transmissive display element. In this way, it is not necessary to firmly attach a large device for projection to the vehicle, and the attachment and adjustment become easy. For example, the display unit is particularly preferably a transmissive color liquid crystal display, a transmissive monochrome liquid crystal display, a transmissive electroluminescence (EL) display, or the like.

(5) The mounting means may be configured to mount the display unit so as to be located in front of the transparent portion in the vehicle. The transmissive portion may be, for example, the windshield of a vehicle. In this way, when the display unit is not displayed, the display unit does not block the driver's front view, and a sufficient field of view can be secured to contribute to safe driving. The display unit may be transparent. If a device such as a display is attached and it is a non-transparent type, it is difficult for the driver to be aware of it because there is only a stationary object. On the other hand, in the case of the transmissive type, the scenery in front and the like can be seen as flowing through the transparent type display unit, as if the driver is trying to acquire various information through the windshield. Information can be obtained. On the other hand, if there is a change, it will be displayed superimposed on the scenery, so it is easy to cause a sense of discomfort, and it will be easier to recognize the difference from the surrounding windshield part.

The front surface of the transmissive portion may be, for example, on the dashboard above the meter hood, but (6) the mounting means is particularly preferable to mount the display portion so as to be located below the sun visor in the stored state. .. In this way, the display unit can be arranged at a position that looks vague at the upper part of the field of view when the vehicle driver gazes at the front.

(7) In this case, it is further preferable that the mounting means includes a clip that sandwiches the sun visor in the retracted state from the front side of the vehicle. In this way, the display device can be easily attached to the vehicle. Moreover, since the structure of the sun visor is almost the same regardless of the vehicle type, the display device can be attached to various vehicle types. In addition, since the display device is attached by sandwiching it with a clip from the front side, if the driver hits the display device due to an accident or the like, it can easily fall off the sun visor, making it difficult for the driver to get injured. be able to.

(8) The mounting means may be configured to mount the display unit so as to be located in front of the non-transparent portion in the vehicle. In this way, the display unit can be arranged at a position that looks vague when the vehicle driver gazes at the front without obstructing the front view of the driver.

The non-transmissive portion may be, for example, an A pillar or an air outlet of an air conditioner, but (9) the mounting means is particularly preferable to mount the display portion on the front surface of the meter hood of the vehicle. In this way, the display unit can be arranged at a position that looks vague at the lower part of the field of view when the vehicle driver gazes at the front. The position of the meter hood is often in the lower front part of the driver, and that part is easy to install, and the direct sunlight is blocked to improve visibility. Further, when the display unit is composed of a transmissive display element, various meters and display devices arranged in the meter hood can be visually recognized through the display device.

(10) The display control unit displays the display of the first area, which occupies at least a part of the display unit, at the timing when the information should be presented to the driver, in a state where the first area looks vague when looking ahead. , It is preferable to have a function of controlling the display unit so that the change from the non-display state to the display state can be recognized. In this way, it is possible to recognize that there has been some change in the display even if the driver does not pay attention to the display device due to the visual characteristics in the range that looks vague. The first area may be the entire surface of the display unit.

(11) The display control unit may have a function of controlling the display unit so as to display in the first area by a different visual effect according to the content of the information to be presented. The content of the information to be presented is, for example, the type of information, the urgency, and the like. In this way, the driver can recognize the type of information, the urgency, and the like without changing the direction of the line of sight. As the "visual effect", the first area may be displayed in a different color depending on the content of the information to be presented, but the display pattern may be different depending on the content of the information to be presented in the first area. Is especially good to do. For example, depending on the content of the information, it may be displayed in a pattern such as blinking or displaying a movement that flows from side to side. It is said that color vision tends to be lost for positions that look vague, and in this way, it is possible to make it easier for the driver to recognize the difference in the pattern change than in the color change. ..

(12) The display unit includes a second area different from the first area, and has a function of controlling the display unit so that the second area is harder to see than the first area when gazing at the front. It is good to have. As the "display that is difficult to see", for example, it is preferable to constantly display information that cannot be visually recognized without paying attention to the second area. Specifically, for example, various information regarding the vehicle and surrounding conditions may be displayed, for example, numbers and characters. It is particularly preferable to periodically update the display contents while constantly displaying the second area. In this way, if the driver intentionally gazes at the second area, the displayed information can be confirmed at any time. Further, unless the viewpoint is switched to the information that is always displayed in the second area, it is difficult for the driver who is gazing ahead to visually recognize the information displayed in the second area, so that the information that is always displayed in the second area is always displayed. It does not interfere with driving.

(13) The display control unit may have a function of changing the display state in the first region more rapidly than the change in the display state in the second region. In this way, it is possible to make it easier for the driver to notice a sudden change in the first region as opposed to the constant display in the second region. "Abruptly" includes, for example, controlling the size, brightness, color, etc. to change significantly as compared with the display in the second area, but in a short time as compared with the display change in the second area. It is especially good to control the display to change.

(14) The display control unit may have a function of controlling so as to change the display state of the first area when the information to be watched is displayed in the second area. In this way, it becomes easier for the driver to notice that there is a change in the vague area due to the change in the display state of the first area, and as a result of that notice, the line of sight that was looking ahead is changed to the first area. Turn. Then, since there is a second region in the vicinity of the first region, the line of sight can be guided to the second region. As a priming water, the display change in the first area is to inform the driver that the information to be watched is displayed in the second area, and to guide the driver to watch the display in the second area and confirm the detailed information. it can.

(15) It is particularly preferable that the display control unit has a function of displaying in the first area by different visual effects depending on the content of the information to be watched displayed in the second area. In this way, the driver can recognize the type of information based on the visual effect of the display in the first region and determine whether or not to gaze at the second region. As the visual effect that differs depending on the content of the information, for example, the above-mentioned "visual effect" may be used.

(16) In the cases (14) and (15) described above, the display control unit displays so as to guide the line of sight to the position where the information to be watched in the first region to the second region is displayed. It is preferable to have a function to control the unit. In this way, the guidance from the first region to the second region can be ensured. The "display for guiding the line of sight" may be, for example, connected by a line segment, displayed in the same color, blinked in synchronization, or the like.

(17) In order to solve the above problems, in the program of the present invention, it is preferable to make the computer function as a display control unit in any of the above-mentioned devices. According to the program of the present invention, it is possible to control the display so that the driver can recognize the change in the display of the display unit without gazing at the display device due to the visual characteristics in the range that looks vague. ..

It is a perspective view which shows the appearance of the display device 1 which concerns on 1st Embodiment of this invention. It is a schematic diagram which shows the structure of the sun visor 300 for a vehicle. It is a schematic view which looked at the state which the display device 1 which concerns on 1st Embodiment is attached to the sun visor 300 by the attachment member 12 seen from the side. It is a schematic view which looked at the state which the display device 1 which concerns on 1st Embodiment is attached to the sun visor 300 by the attachment member 12 seen from the rear. It is a block diagram which shows the structure of the main body part 11. It is a schematic diagram which shows the display area in the display part 13. FIG. 5 is a perspective view of the appearance of the display device 1 according to the second embodiment of the present invention as viewed from the rear side located on the opposite side of the vehicle when the display device 1 is attached to the vehicle. It is a schematic view which looked at the state which the display device 1 which concerns on 2nd Embodiment is attached to the meter hood 320 by the attachment member 12 from the side. FIG. 5 is a schematic view of a state in which the display device 1 according to the second embodiment is attached to the meter hood 320 by the attachment member 12 as viewed from the rear.

[First Embodiment]
FIG. 1 is a perspective view showing the appearance of the display device 1 according to the first embodiment of the present invention. As shown in FIG. 1, the display device 1 includes a main body portion 11, a mounting member 12, and a display unit 13. The display device 1 is used by being attached to a sun visor 300 installed near the boundary portion between the windshield of the vehicle and the ceiling above the driver's seat.

The sun visor 300 is a awning used in a vehicle to protect the driver's eyes from direct sunlight and to secure visibility. The size of the sun visor 300 varies depending on the vehicle, but generally includes a light-shielding plate 301 having a width of 250 to 400 mm, a vertical width of 150 to 250 mm, and a thickness of about 20 to 30 mm. As shown in FIG. 2, the sun visor 300 is configured by rotatably supporting an L-shaped shaft 303 on a bracket 302 fixed to the ceiling of a vehicle and rotatably attaching a light-shielding plate 301 to the shaft 303. Has been done. Therefore, the light-shielding plate 301 can be rotated so as to hang parallel to the windshield of the vehicle or to the front, back, left, and right at a desired inclination angle, and the entire light-shielding plate 301 is swiveled about 90 degrees from the windshield side with respect to the door glass. It can also be set to hang in parallel or in the front-back and left-right directions at a desired inclination angle.

When not in use, the sun visor 300 is held in a stored state in which the light-shielding surface of the light-shielding plate 301 is parallel to the ceiling of the vehicle and the long side of the light-shielding plate 301 is substantially parallel to the windshield. The display device 1 is attached to the light-shielding plate 301 of the sun visor 300 in the stored state.

The main body 11 of the display device 1 has a height similar to the thickness of the sun visor provided in a general vehicle, and is supported by the vehicle front side (that is, the shaft 303) of the sun visor 300 held in the stored state. The case body 111 has a depth equal to or less than the distance from the end of the side) to the boundary between the windshield of the vehicle and the ceiling above the driver's seat. A display unit 13 is provided at the bottom of the case body 111, and a mounting member 12 is provided on the front surface of the case body 111 (that is, a surface located on the driver side when mounted on the sun visor 300).

The display unit 13 is arranged at the lower part of the case body 111. The width and height of the display unit 13 shall be about the same as or less than the light-shielding plate 301 of the sun visor 300. Specifically, the horizontal width is 400 mm or less and the vertical width is 250 mm or less. The display unit 13 is a transmissive color liquid crystal display, and when the information is not displayed, the display unit 13 transmits light. The mainstream of conventional head-up displays is the projector type, and general-purpose products have a reflective film attached to the glass, which cannot meet safety standards. However, by using a transmissive color liquid crystal display, images can be directly displayed on the display. It can be displayed, there is no need to attach a film to the glass, and the troublesomeness of installing the projector can be eliminated. In addition, the display method of projecting an image from a projector onto a screen may be easy to see or difficult to see depending on the relationship between the projection direction and the viewpoint, but the direct display method using a transmissive liquid crystal display makes it difficult to see the display depending on the viewpoint. There is no. Further, by making the display unit 13 the same size or smaller as the sun visor 300, the display unit 13 is less likely to interfere with the surrounding structure (for example, the rearview mirror 310 or the glass on the side surface).

The mounting member 12 of the present embodiment is two clips 121 and 122 protruding from the front surface of the case body 111. FIG. 3 is a schematic view of a state in which the display device 1 is attached to the sun visor 300 included in the vehicle by the attachment member 12 as viewed from the side. Further, FIG. 4 is a schematic view of a state in which the display device 1 is attached to the sun visor 300 included in the vehicle by the attachment member 12 as viewed from the rear of the vehicle. The clip 121 and the clip 122 are provided at positions separated in the horizontal direction, and the end portion of the sun visor 300 in the stored state is sandwiched from the front side (that is, the windshield side) of the vehicle, and the display device 1 is attached to the sun visor 300. Install. In this way, the sun visor 300 display device 1 can be easily attached to the vehicle. Further, since the structure of the sun visor 300 described above is almost the same regardless of the vehicle type, the display device can be attached to various vehicle types. Further, since the display device 1 is attached by sandwiching the sun visor 300 from the windshield side with a clip, the display device 1 easily falls off from the sun visor 300 when the driver hits the display device 1 due to an accident or the like. By doing so, the driver can be less likely to be seriously injured. Further, since the sun visor 300 is arranged so as not to interfere with the rearview mirror 310 and the glass on the side surface of the vehicle, even if the display unit 13 projects under the sun visor 300, the display unit 13 also has the glass on the rearview mirror 310 and the side surface of the vehicle. It does not interfere and does not interfere with the position adjustment of the rearview mirror 310 or the rear view through the rearview mirror 310. Further, since the display unit 13 does not block the driver's front view, the display unit 13 can be installed while satisfying the safety standard.

When attaching the display device 1 to the sun visor 300, it is easier to attach the sun visor 300 by shifting it from the state in which the light-shielding plate 301 is stored. When the installation is completed, the sun visor 300 is returned to the stored state. When the installation is completed, the case body 111 is hidden behind the sun visor 300, and the display unit 13 is located below the sun visor in the stored state. Only the display unit 13 can be seen by the driver.

In this way, the display unit can be arranged at a position that looks vague when the vehicle driver gazes at the front. "Vague" refers to a state in which the vehicle is in the field of view but is not clearly visible and can be seen vaguely. When looking at a vehicle 40 to 50 m ahead on a straight road while sitting in the driver's seat. This corresponds to a position deviated by approximately 10 degrees or more in the vertical direction from the direction of the line of sight. The area about 20 degrees from the fovea is called the central visual field. The other area is called the peripheral visual field, and the central visual field generally has higher spatial resolution. Immediately below the stored sun visor 300 corresponds to the peripheral visual field above the direction of the line of sight. The configuration in which the display unit 13 is arranged at a position that looks vague allows the driver to recognize a change in the display on the display unit 13 without gazing at the display device 1.

FIG. 5 is a block diagram showing the configuration of the main body 11. An SD memory card slot portion 117 is provided on the back surface of the case body 111 (that is, a surface located on the side opposite to the driver when attached to the sun visor 300), and map data is provided in the SD memory card slot portion 117. The SD memory card 20 on which the above is recorded can be inserted. A DC jack 110 is provided on the back surface of the case body 111. The DC jack 110 is for connecting a cigar plug cord (not shown), and is connected to a cigar socket of a vehicle via the cigar plug cord so that power can be supplied. Further, on the side surface of the case main body 111, an operation button 114 including a power switch, a USB terminal 115, and the like are provided. It is possible to connect to a personal computer via the USB terminal 115 and upgrade the software application version.

The following devices and parts are arranged inside the case body 111. That is, the microwave receiver 112 is arranged inside the case main body 111 on the back side. The microwave receiver 112 receives microwaves in a predetermined frequency band, and when it receives microwaves in the set frequency band, it detects the signal level of the received microwaves. Specifically, the RSSI voltage, which is the signal level and corresponds to the electric field strength, is used. The above-mentioned predetermined frequency band is, for example, a frequency band including the frequency of microwaves emitted from the vehicle speed measuring device. Further, inside the upper surface side of the case main body 111, a GPS receiver 113 that receives a GPS signal and obtains a current position is arranged.

The display device 1 of the present embodiment has a navigation function for guiding a route to a set destination, and a target as a target notification device for notifying a target such as a vehicle speed measuring device or other traffic monitoring points existing in the vicinity. It has an object notification function. These navigation functions and the target notification function are stored in the EEPROM of the control unit 118 as a program executed by the computer included in the control unit 118, and are realized by being executed by the computer having the control unit 118.

That is, the control unit 118 is determined based on the information input from the above-mentioned various input devices (GPS receiver 113, microwave receiver 112, operation button 114, SD memory card slot unit 117, USB terminal 115, etc.). Is executed, and predetermined information / alarm / message is output by using an output device (display unit 13, SD memory card slot unit 117, USB terminal 115, etc.). This predetermined process is for executing each of the above functions, and accesses the database 116 and the SD memory card 20 as needed.

Here, the database 116 can be realized by a non-volatile memory (for example, EEPROM) inside the microcomputer of the control unit 118 or externally attached to the microcomputer.

Information necessary for performing certain target objects, maps, and other functions is registered in the database 116 at the time of shipment, and data and the like for the target objects added after that are updated after undergoing predetermined processing. can do. The process for updating these information can be performed, for example, by inserting an SD memory card in which additional data is stored into the slot portion 117 for the SD memory card and transferring the SD memory card to the database 116. is there. Further, this data update can be performed using a personal computer or other external device connected via the USB terminal 115.

Specifically, the database 116 stores road network information for navigation. The navigation information stored in the database 116 may store all the information about the whole country at the time of shipment, and the map data and the like are provided stored in the SD memory card 20 for each region. The user may prepare an SD memory card in which necessary map data and the like are stored, and attach the SD memory card to the SD memory card slot portion 117 for use. The map data or the like stored in the SD memory card 20 may be transferred to the database 116 and stored, or the control unit 118 may access the SD memory card 20 and read it from the SD memory card 20 for use. good.

The control unit 118 can read the road network information around the current position from the database 116 and search for a route (route) from one position to another using this road network information. Further, the database 116 stores the telephone number database in which the telephone number is associated with the location information and name of the house, company, facility, etc. of the telephone number, and the address and the location information of the address are associated with each other. It has an address database. Further, in the database 116, the position information of the traffic monitoring point such as the speed measuring device is stored together with the type.

Subsequently, the function of the display unit 13 will be described in detail. The display unit 13 displays information, alarms, messages, etc. according to the control of the control unit 118. The display unit 13 includes a first area 131 and a second area 132. As shown in FIG. 6, the first region 131 is an region near the left and right ends of the display unit 13. Normally, the first area is not displayed and the front is transparent, while the first area 131 looks vague when the driver gazes at the front at the timing when the information should be presented to the driver. In the state, the display is changed to the extent that it can be recognized that the state has changed from the non-display state to the display state. Specifically, based on the display control by the control unit 118, the display of the first area 131 has a large change in size, brightness, color, etc. as compared with the display of the second area, or the display changes in the second area. The display changes in a short time compared to. As a result, the display is changed so that the driver can easily see the display of the first region 131 even in a state where the display looks vague.

The second area 132 is a central area of the display unit 13. In this second area, various information about the vehicle and surrounding conditions such as vehicle speed, engine speed, cooling water temperature, and other information obtained by OBD (On-board diagnostics), target notification function described later, and The distance to the target in the navigation function is displayed by numbers or letters. Information that cannot be seen without careful attention is constantly displayed in the second area, and the displayed contents are regularly updated as needed. Since the display is always made, the display of the second area 132 is harder to see than the display of the first area when the driver is gazing at the front and the display unit 13 is in a position where the display unit 13 looks vague. It is difficult to recognize changes.

If the driver intentionally gazes at the second region 132, various displayed information can be confirmed at any time. Further, unless the viewpoint is switched to the information always displayed in the second area 132, the driver who is gazing ahead cannot visually recognize the information displayed in the second area 132, so that the information always displayed in the second area 132 cannot be visually recognized. The display does not interfere with driving.

When no display is performed on the display unit 13, the display unit 13 does not block the driver's front view, and a sufficient field of view can be secured to contribute to safe driving. Further, if a device such as the display unit 13 is attached and the device is non-transmissive, it is difficult for the driver to be aware of it because there is only a stationary object. On the other hand, in the case of the transmissive type, the scenery in front and the like can be seen as flowing through the transparent type display unit, as if the driver is trying to acquire various information through the windshield. Information can be obtained. On the other hand, if there is a change, it will be displayed superimposed on the scenery, so it is easy to cause a sense of discomfort, and it will be easier to recognize the difference from the surrounding windshield part.

The control unit 118 operates as follows in order to realize the target notification function. That is, when the microwave receiver 112 receives a microwave having a predetermined frequency such as a microwave emitted from a vehicle speed measuring device, the control unit 118 outputs an alarm by displaying the display unit 13. Specifically, the control unit 118 controls the display unit 13 so that the red arrow is in the first area 131 of the display unit 13 and the display state is instantly changed from the non-display state. At the same time, the control unit 118 guides the driver's line of sight recognizing the change in the display in the first region to the location displaying the vehicle speed in the second region 132 of the display unit 13, so that the vehicle speed in the second region 132 is displayed. The display unit 13 is controlled so that the display of is blinking in synchronization with the red arrow in the first area 131.

Further, the control unit 118 operates as follows in order to realize a navigation function for guiding the route to the set destination. That is, the destination setting menu is displayed on the display unit 13, the user is prompted to select the destination setting method, and the destination is set according to the operation of the operation button 114. The destination setting menu is displayed so that a search for a destination by telephone number and a search for a destination by address can be selected. When it is detected that the search by telephone number is selected, the telephone number input screen is displayed, and the location information corresponding to the input telephone number is acquired from the database 116. When it is detected that the search by address is selected, the address selection input screen is displayed, and the location information corresponding to the input address is acquired from the database 116. Then, the acquired position information is set as the position information of the destination, and the recommended route from the current position to the destination is obtained based on the road network information stored in the database 116. As a method for calculating this recommended route, a known method such as Dijkstra's algorithm can be used.

When approaching an intersection to be turned left or right, a green arrow is blinked in the first area 131 on the turning direction side, and the distance to the intersection is displayed in the second area 132. Then, in order to guide the line of sight to the display of the distance to the turning intersection, the display of the distance to the intersection in the second area 132 is blinked in synchronization with the green arrow in the first area 131. When the set destination approaches, the green arrows blink in the first areas 131 on both the left and right sides, and the distance to the destination is displayed in the second area. Then, in order to guide the line of sight to the display of the distance to the destination, the display of the distance to the destination in the second area 132 is blinked in synchronization with the green arrow in the first area 131.

As explained above, when the information should be presented to the driver, such as when approaching a target, an intersection, etc., the display of the first area looks vague when looking ahead. The change from the hidden state to the displayed state is changed to a recognizable state. At the same time, a display for guiding the line of sight from the first region to the second region is displayed.

In this way, the visual characteristics of the range that looks vague make it easier for the driver to notice the change in the display state of the first region 131, and the driver who notices the change decides to obtain more detailed information. In this case, the line of sight that was looking forward can be directed to the first region 131. Then, the line of sight can be smoothly moved by the display that guides the line of sight from the first area 131 to the second area 132. In this way, the display change of the first region 131 is used as a priming water to inform the driver that the information to be watched is displayed in the second region 132, and the display of the second region 132 is watched to provide detailed information. You can be guided to confirm.

Further, by displaying the warning regarding the target notification function in the second area 132 and the warning regarding the navigation function in the second area 132 in different colors and patterns, the warning is displayed in the first area 131. The driver can recognize whether the information to be watched displayed in the second region 132 relates to the target notification function or the navigation function without the driver changing the direction of the line of sight. Then, based on that recognition, the driver can determine whether or not to pay attention to the second region 132.

[Second Embodiment]
Hereinafter, a second embodiment of the present invention will be described with reference to the drawings. A feature of the display device 1 according to the present embodiment is that the display unit 13 is attached so as to be located on the front surface of the meter hood of the vehicle (that is, between the meter hood and the driver). It should be noted that the same as the first embodiment described above except for the changes due to the adoption of such a configuration, and thus the description thereof will be omitted here.

FIG. 7 is a perspective view of the appearance of the display device 1 according to the second embodiment of the present invention as viewed from the rear side located on the side opposite to the driver when the display device 1 is attached to the vehicle. Similar to the first embodiment, the display device 1 of the present embodiment includes a main body portion 11, a mounting member 12, and a display unit 13. A display unit 13 is provided below the case body 111 that forms the housing of the body unit 11. As shown in FIG. 7, the mounting member 12 is configured as a hook protruding from the center of the back surface of the case body 111 so that the display unit 13 is positioned on the front surface of the meter hood 320. The bottom surface of the hook is flat and is provided without a step with the bottom surface of the case body 111.

FIG. 8 is a schematic view of a state in which the display device 1 is attached to the meter hood 320 included in the vehicle by the attachment member 12 as viewed from the side. Further, FIG. 9 is a schematic view of a state in which the display device 1 is attached to the meter hood 320 provided in the vehicle by the attachment member 12 as viewed from the rear of the vehicle. The bottom surfaces of the case body 111 and the mounting member 12 are fixed to the upper surface of the edge of the meter hood 320 by adhesive tape. In this way, the display device 1 can be easily attached to the vehicle so that the display unit 13 is located on the front surface of the meter hood 320. In this way, the display unit 13 can be arranged at the lower part of the front field of view that looks vague when the vehicle driver gazes at the front without blocking the front field of view of the driver. Further, the display unit 13, which is a transmissive color liquid crystal display, allows various meters and display devices arranged in the meter hood 320 to be visually recognized through the display device even if they are arranged in front of the meter hood 320. Can be done. In a general vehicle, the position of the meter hood 320 is often in the lower front part of the driver, and that part is easy to install, and direct sunlight is blocked to provide good visibility. Further, since the display unit 13 does not block the driver's front view, the display unit 13 can be installed while satisfying the safety standard. In the case of a so-called center meter type vehicle in which instruments such as a speedometer are located in the center of the driver's seat and the passenger seat instead of the normal front of the driver's seat, in front of the front panel of the meter hood 320. The meter hood in a center meter type vehicle having a configuration that does not fall into a range that looks vague when the driver gazes at the front even if the display unit 13 is arranged in the above does not correspond to the meter hood 320 assumed in the present invention. Shall be.

[Modified example of the embodiment]
The present invention is not limited to each of the above embodiments, and modifications, improvements, and the like within the range in which the object of the present invention can be achieved are included in the present invention.

For example, in the above embodiment, the case where a transmissive color liquid crystal display is used as an example of the display unit included in the display device has been described as an example, but any other transmissive type may be used. For example, a display element such as a black-and-white transmissive liquid crystal display or a transmissive electroluminescence (EL) display may be used. Further, a configuration in which an image is projected from a projector may be adopted, and a transmissive display surface (for example, a screen) may be provided as a display unit.

Further, in the above embodiment, the "position that looks vague" in which the display unit is arranged is not limited to the upper or lower part of the front visual field that looks vague when the vehicle driver gazes at the front, for example, the central visual field in the peripheral visual field. It may be either the left or right area of. In this case, in order not to block the driver's field of view, the area on the right side of the central field of view for a vehicle with a right-hand drive and the area on the left side of the central field of view for a vehicle with a left-hand drive are set here as positions that look vague. It is advisable to provide a mounting member suitable for placement.

Further, when the display unit is arranged on the entire surface of the transparent unit (for example, the front window) as in the first embodiment, the “position that looks vague” is, for example, the upper side of the meter hood (on the so-called dashboard). May be. Further, it may be the front surface of the non-transparent portion such as the front surface of the meter hood illustrated in the second embodiment.

Further, the control unit may control so as to change the display state of the first region when the information to be watched is displayed in the second region. When changing the display state of the first area, it is particularly preferable to display the information in the first area by different visual effects depending on the content of the information to be watched displayed in the second area.

As the visual effect to be performed in the display of the first area, in addition to displaying in different colors according to the content of the information described in the above embodiment, the display is performed in a different display pattern according to the content of the information. May be good. For example, depending on the content of the information, it may be displayed in a pattern such as blinking or displaying a movement that flows from side to side. It is said that color vision tends to be lost for a position that looks vague, and a change in pattern can make it easier for the driver to recognize the difference than a change in color.

In addition to the synchronized blinking display described in the above embodiment, the display that guides the line of sight from the first area to the second area includes the display of the first area and the display of information to be watched in the second area. , Displayed in the same color, connected by a line segment, or a combination thereof.

Further, in the above embodiment, the configuration in which the display unit includes the first region and the second region has been described, but the second region may not be provided, and in this case, the first region may be the entire surface of the display unit. ..

Further, in the above embodiment, the case where the display device has the target notification function and the navigation function has been described as an example, but one or both of these functions are provided by the external device, and the display device is in the external device. It may be configured to function as an external display means.

Further, in the second embodiment, the case where the hook is provided as the mounting member has been described as an example, but the bottom surface of the case body may function as the mounting member without providing the hook. In this case, the bottom surface of the case body may be attached to the upper surface of the dashboard via an adhesive tape or the like.

11 Main body 12 Mounting member 13 Display 20 SD memory card 110 DC jack 111 Case main body 112 Microwave receiver 113 GPS receiver 114 Operation button 115 USB terminal 116 Database 117 SD memory card slot 118 Control 121 Clip 122 Clip 123 Hook 131 1st area 132 2nd area 300 Sunvisor 301 Shading plate 302 Bracket 303 Shaft 310 Room mirror 320 Meter hood

Claims (6)

A mounting part that can be attached to a predetermined part of the vehicle,
A display unit having a display area and
In the second area including the area located in the central portion in the left-right direction of the display area, the second information regarding the vehicle or the surroundings is displayed using at least characters, and is located to the left or right of the second area. A display control unit that controls the display of predetermined first information in the first area using an image that does not contain characters.
Display device with. The display control unit according to claim 1, wherein the display control unit controls to display a third information about the vehicle or its surroundings in a region located below the first region of the second region using at least characters. Display device. The predetermined part is a sun visor,
The display device according to claim 1 or 2, wherein the display unit is located directly below the sun visor when the mounting unit is attached to the sun visor in a stored state. The predetermined part is a meter hood,
The display device according to claim 1 or 2, wherein the display unit overlaps with at least one of the devices arranged in the meter hood when viewed from the front when the mounting unit is attached to the meter hood. The display device according to any one of claims 1 to 4, wherein the display control unit changes the display state in the first region when the second information is updated. A program for causing a computer to function as a display control unit in the display device according to any one of claims 1 to 5.

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