JP2019131182A - 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 is provided which includes a display part for display according to the control by a display control part, and an attaching means for attaching the display part at such position as a vehicle driver can scarcely observe when gazing frontward during driving. A position that is scarcely observed may be a position, for example, corresponding to a peripheral part of sight of field.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a display device that can recognize a display change without a driver's attention.

  As a vehicle-mounted display device, a head-up display is known. 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. (For example, refer to Patent Document 1).

JP 2013-242346 A

  Usually, in such a head-up display, a display image is projected onto an area where the driver can gaze at the time of driving. For this reason, in order to ensure a forward field of view and satisfy 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 and the like that can be easily attached and adjusted and can recognize displayed information without gazing. This object is achieved, for example, by a combination of features described in the independent claims. The dependent claims define further advantageous specific examples of the present invention, for example.

(1) In order to solve the above-described problem, the present invention provides a display unit that performs display according to control by the display control unit, and a position at which the display unit appears inconspicuous when the vehicle driver gazes ahead while driving. It is good to set it as a display apparatus provided with the attachment means attached to. In this way, the driver can recognize a change in display on the display unit without gazing at the display device.

  The “front” may be, for example, the direction of the line of sight that the driver sitting in the driver's seat points at the time of driving on a straight road, and in particular, the direction of the line of sight when viewing a vehicle 40 to 50 meters ahead. In addition, the “gaze” may be, for example, a state in which sight is concentrated and staring at an object.

  For example, it is preferable that the “disappearance” is not clearly visible but is a faint appearance, and the “appearance of disappearance” is, for example, a position where the details of the displayed information are difficult to visually recognize. For example, the position where the vehicle appears to be blurred may be a position that is in the field of view but is not in focus when the vehicle driver gazes forward, and is generally in the vertical direction from the direction of the line of sight when looking forward. It is particularly good if the position is shifted by 10 degrees or more. The “positions that appear to be blurred” may be the left and right parts in the field of view, but are desirably the upper and lower parts of the central field of view in the field of view.

  The attachment means only needs to be configured to attach the display unit to a position where it can be seen in a loose manner, and the display unit and the attachment means may be directly connected, but if it is configured to be connected via another member interposing both Good. And it is especially good to set it as the structure which stores a display control part in the said another member and connects the stored display control part and a display part, and controls the display of a display part.

(2) The position that appears to be blurred may be a position corresponding to the peripheral visual field. In this way, it is possible to recognize a change in display 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 displaying, the display unit does not block the field of view in front of the display unit. can do.

(4) The display unit may be a transmissive display element. In this way, there is no need to firmly attach a large projection device to the vehicle, and attachment and adjustment are 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 attachment means may be configured to attach the display unit so as to be positioned in front of the transmission part in the vehicle. For example, the transmission part may be a vehicle windshield. In this way, in the state where no display is performed on the display unit, the display unit does not block the field of view ahead of the driver, and a sufficient field of view can be secured to contribute to safe driving. The display unit may be a transmissive type. If a device such as a display unit is attached and is non-transparent, there is only a stationary object, so it is difficult for the driver to take consciousness there. On the other hand, in the case of the transmissive type, the scenery in front and the like is seen to flow through, so that the driver can obtain various information through the windshield through the transmissive type display unit. Information. On the other hand, if there is a change, it is displayed superimposed on the scenery, so that a sense of incongruity is likely to occur, and the difference from the surrounding windshield part can be easily recognized.

  The front surface of the transmission portion may be, for example, on a dashboard on the meter hood, but (6) the attachment means is particularly preferably attached so that the display portion is located below the stored sun visor. . If it does in this way, a display part can be arrange | positioned in the position which is visible in the upper part of a visual field when a vehicle driver gazes ahead.

(7) In this case, the attachment means may further include a clip that sandwiches the stored sun visor 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 generally 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 with a clip from the front side, when the driver hits the display device due to an accident or the like, it easily falls off the sun visor, making it difficult for the driver to get injured. be able to.

(8) The attachment means may be configured to attach the display unit so as to be positioned in front of the non-transmissive part in the vehicle. If it does in this way, a display part can be arranged in a position which looks obscure when a vehicle driver gazes ahead ahead, without blocking a driver's front vision.

  The non-transmissive portion may be, for example, an A-pillar or an air-conditioner outlet, but (9) the attachment means is particularly preferably attached to the front surface of the meter hood of the vehicle. If it does in this way, a display part can be arrange | positioned in the position which is visible in the lower part of a visual field when a vehicle driver gazes ahead. In particular, the position of the meter hood is often in the lower front part of the driver, and the portion is easy to attach, and the direct sunlight is blocked so that the visibility is good. In addition, when the display unit is configured by a transmissive display element, various meters and display devices arranged in the meter hood can be viewed through the display device.

(10) The display control unit is configured to display the first region occupying at least a part of the display unit at a timing at which information is to be presented to the driver in a state where the first region is visible when looking forward. It is preferable to provide 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 display change without the driver gazing at the display device, based on the visual characteristics of the range that appears to be blurred. 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 that display is performed in the first region with different visual effects depending on the content of the information to be presented. The content of the information to be presented is, for example, the type of information, urgency, and the like. In this way, the type of information, urgency, etc. can be recognized without the driver changing the direction of the line of sight. “Visual presentation” may be displayed in the first area with a different color depending on the content of the information to be presented, but displayed in the first area with a different display pattern depending on the content of the information to be presented. It is especially good to do. For example, according to the content of information, it is good to display with patterns, such as blinking and the display of the movement which flows right and left. It is said that there is a tendency to lose color vision for positions that appear dim, and this makes 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 region that is different from the first region, and controls the display unit so that the second region is less visible than the first region and displays when gazing forward. It is good to have. As the “display that is difficult to visually recognize”, for example, in the second area, information that cannot be visually recognized unless it is watched may be displayed at all times. Specifically, for example, various types of information related to the vehicle and surrounding conditions, such as numbers and characters, may be displayed. Note that it is particularly preferable that the display contents are regularly updated while always displaying in the second area. If it does in this way, if the driver deliberately gazes at the 2nd field, the displayed information can be checked at any time. In addition, unless the viewpoint is switched to information that is always displayed in the second area, it is difficult for the driver who is gazing forward to view the information displayed in the second area. Less likely to 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 the driver easily notice a sudden change in the first area as opposed to the constant display in the second area. “Abruptly” includes, for example, controlling so that the size, brightness, color, and the like greatly change compared to the display in the second area, but in a short time compared to the display change in the second area. It is particularly good to control the display to change.

(14) The display control unit may have a function of controlling the display state of the first area to change when 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, the line of sight that is gazing ahead is changed to the first area. Turn. Then, since the second region is in the vicinity of the first region, it is possible to guide the line of sight to the second region. The display change in the first area is called priming water, telling the driver that the information to be watched is displayed in the second area, and guiding the user to check the detailed information by watching the display in the second area. it can.

(15) It is particularly preferable that the display control unit has a function of performing display in the first area with different visual effects depending on the content of the information to be watched displayed in the second area. In this way, the driver can determine whether or not to recognize the type of information based on the visual presentation of the display in the first area and to watch the second area. The visual effects that differ depending on the content of the information may be, for example, the above-mentioned “visual effects” and effects.

(16) In the cases of (14) and (15) described above, the display control unit performs display so as to guide the line of sight from the first area to the position where the information to be watched of the second area is displayed. It is good to have the function which controls a part. In this way, guidance from the first area to the second area can be ensured. “Display for guiding the line of sight” may be, for example, connected by line segments, displayed in the same color, or flashed in synchronization.

(17) In order to solve the above-described problems, the program of the present invention may cause a computer to function as a display control unit in any of the above-described 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 display on the display unit without gazing at the display device, based on the visual characteristics of the range that appears to be blurred. .

It is a perspective view which shows the external appearance of the display apparatus 1 which concerns on 1st Embodiment of this invention. It is a schematic diagram which shows the structure of the sun visor 300 for vehicles. FIG. 5 is a schematic view of a state in which the display device 1 according to the first embodiment is attached to the sun visor 300 by the attachment member 12 when viewed from the side. It is the schematic diagram which looked at the state which attached the display apparatus 1 which concerns on 1st Embodiment to the sun visor 300 by the attachment member 12 from back. 3 is a block diagram illustrating a configuration of a main body unit 11. FIG. FIG. 6 is a schematic diagram showing a display area in the display unit 13. It is the perspective view seen from the back side located in the opposite side to a driver, when the appearance of display 1 concerning a 2nd embodiment of the present invention is attached to vehicles. It is the schematic diagram which looked at the state which attached the display apparatus 1 which concerns on 2nd Embodiment to the meter hood 320 by the attachment member 12. It is the schematic diagram which looked at the state which attached the display apparatus 1 which concerns on 2nd Embodiment to the meter hood 320 by the attachment member 12 from back.

[First Embodiment]
FIG. 1 is a perspective view showing an appearance of a 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, an attachment member 12, and a display portion 13. The display device 1 is used by being attached to a sun visor 300 installed in the vicinity of the boundary portion between the windshield of the vehicle and the ceiling above the driver's seat.

  The sun visor 300 is an awning used in a vehicle to protect the driver's eyes from direct sunlight and to ensure visibility. Although the size of the sun visor 300 differs depending on the vehicle, the sun visor 300 generally includes a light shielding plate 301 having a width of 250 to 400 mm, a length 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 such that an L-shaped shaft 303 is pivotally supported on a bracket 302 that is fixed to a vehicle ceiling, and a light shielding plate 301 is pivotally attached to the shaft 303. Has been. Therefore, the light shielding plate 301 can be rotated so as to hang down at a desired inclination angle in parallel to the front windshield of the vehicle or in the front, rear, left and right directions. It can also be set so that it hangs down at a desired inclination angle in parallel or front and rear, right and left.

  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 vehicle ceiling 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 a stored state.

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

  The display unit 13 is disposed below the case body 111. The horizontal width and vertical width of the display unit 13 are set to be equal to or less than the light shielding plate 301 of the sun visor 300. Specifically, the horizontal width is preferably 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 the display unit 13 transmits light when information is not displayed. Conventional head-up displays are mainly projector types, and in general-purpose products, the reflective film is affixed to glass and cannot meet the safety standards, but by using transmissive color liquid crystal, images can be directly displayed on the display. It is possible to display, there is no need to stick a film on the glass, and the troublesome installation of the projector can be eliminated. In addition, the display method that projects an image from the projector onto the screen may be easy to see or difficult to see depending on the relationship between the projection direction and the viewpoint. There is no. In addition, since the display unit 13 has a size less than or equal to that of the sun visor 300, the display unit 13 is less likely to interfere with surrounding structures (for example, the room mirror 310 and the side glass).

  The attachment member 12 of this embodiment is two clips 121 and 122 protruding from the front surface of the case main body 111. FIG. 3 is a schematic view of the 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. FIG. 4 is a schematic view of the state in which the display device 1 is attached to the sun visor 300 provided 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 from each other in the horizontal direction, and sandwich the end portion of the stored sun visor 300 from the front side of the vehicle (that is, the windshield side). Install. In this way, the sun visor 300 display device 1 can be easily attached to the vehicle. Moreover, since the structure of the sun visor 300 described above is generally common 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, the display device 1 is easily detached from the sun visor 300 when the driver hits the display device 1 due to an accident or the like. This can make it harder for the driver to get seriously injured. Further, since the sun visor 300 is arranged so as not to interfere with the rear mirror 310 and the glass on the side of the vehicle, even if the display unit 13 protrudes below the sun visor 300, the display unit 13 is also connected to the rear mirror 310 and the glass on the side of the vehicle. It does not interfere with the position adjustment of the rearview mirror 310 and the rear viewing through the rearview mirror 310. In addition, 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 the display device 1 is attached to the sun visor 300, the operation can be facilitated by shifting the sun visor 300 from the state in which the light shielding plate 301 is stored. With the attachment completed, the sun visor 300 is returned to the stored state. When the attachment is completed, the case main body 111 is hidden behind the sun visor 300, and the display unit 13 is positioned below the stored sun visor. Only the display unit 13 can be seen from the driver.

  If it does in this way, a display part can be arranged in a position where it looks prickly when a vehicle driver gazes ahead. "Oboge" refers to the state that is in the field of view but is not clearly visible, and when you are sitting on the driver's seat and looking at a vehicle 40m to 50m away on a straight road This corresponds to a position that is deviated approximately 10 degrees or more in the vertical direction from the line of sight. A region about 20 degrees from the fovea is called the central visual field. The other region is called the peripheral visual field, and generally the spatial resolution is higher as the central visual field. The area directly below the stored sun visor 300 corresponds to the peripheral visual field above the line of sight. With the configuration in which the display unit 13 is arranged at a position that looks like a ghost, the driver can recognize a change in 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 117 is provided on the back surface of the case main 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 stored in the SD memory card slot 117. It is possible to insert an SD memory card 20 on which is recorded. 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 the vehicle via the cigar plug cord so that power can be supplied. Further, on the side surface of the case body 111, an operation button 114 including a power switch, a USB terminal 115, and the like are provided. The software application can be upgraded by connecting to a personal computer via the USB terminal 115.

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

  The display device 1 of the present embodiment includes a navigation function for guiding a route to a set destination, and a target as a target notification device that notifies a target such as a vehicle speed measurement device or other traffic monitoring points existing in the vicinity. An object notification function is provided. The navigation function and the target notification function are stored on 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 included in the control unit 118.

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

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

  In the database 116, information necessary for carrying out certain targets, maps, and other functions at the time of shipment is registered, and data and the like about the targets added thereafter are updated through predetermined processing. can do. The processing for updating these pieces of information can be performed by, for example, mounting an SD memory card storing additional data in the SD memory card slot 117 and transferring the SD memory card from the SD memory card to the database 116. is there. 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 this database 116 may store all the information about the whole country at the time of shipment, and map data etc. are stored in the SD memory card 20 for each region. In this case, the user may prepare an SD memory card storing necessary map data and the like, and attach it to the SD memory card slot 117 for use. Note that the map data and 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 to read out and use it. good.

  The control unit 118 reads road network information around the current position from the database 116, and can search for a route (route) from one position to another using this road network information. In addition, the database 116 stores a telephone number database in which a telephone number is stored in association with the location information and name of the house, company, facility, etc. of the telephone number, and an address is stored in association with the location information of the address. Provide an address database. The database 116 stores the position information of traffic monitoring points such as speed measuring devices together with their types.

  Next, the function of the display unit 13 will be described in detail. The display unit 13 displays information, alarms, messages, and the like 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 a region near the left and right ends of the display unit 13. The first area is normally not displayed and the front is transparent, while the first area 131 is seen loosely when the driver gazes ahead at the timing when information should be presented to the driver. In the state, the display is changed to such an extent that the change from the non-display state to the display state can be recognized. Specifically, based on the display control by the control unit 118, the display of the first region 131 changes greatly in size, brightness, color, etc., compared to the display of the second region, or the display change of the second region. The display changes in a short time compared to. Accordingly, the display is changed to make it easier for the driver to visually recognize the display of the first region 131 even when the driver is visible in a dim manner.

  The second region 132 is a central region of the display unit 13. This second area includes various information relating to the vehicle and surrounding conditions, such as vehicle speed, engine speed, coolant temperature, and other information obtained by OBD (On-board diagnostics), a target notification function described later, The distance to the target in the navigation function is displayed with numbers and letters. In the second area, information that cannot be viewed without gazing is constantly displayed, and the display content is periodically updated as needed. Since the display is always made, the display of the second area 132 is less visible 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 13 is visible. Difficult to recognize changes.

  If the driver deliberately gazes at the second area 132, the displayed various information can be confirmed at any time. In addition, unless the viewpoint is switched to the information that is always displayed in the second area 132, the driver who is gazing forward cannot view the information displayed in the second area 132. The display is unlikely to interfere with driving.

  In a state where no display is performed on the display unit 13, the display unit 13 does not block the field of view of the front of the driver, and a sufficient field of view can be ensured to contribute to safe driving. In addition, if a device such as the display unit 13 is attached and is non-transmissive, there is only a stationary object, and thus it is difficult for the driver to take consciousness there. On the other hand, in the case of the transmissive type, the scenery in front and the like is seen to flow through, so that the driver can obtain various information through the windshield through the transmissive type display unit. Information. On the other hand, if there is a change, it is displayed superimposed on the scenery, so that a sense of incongruity is likely to occur, and the difference from the surrounding windshield part can be easily recognized.

  In order to realize the target notification function, the control unit 118 operates as follows. That is, the control unit 118 outputs an alarm by displaying on the display unit 13 when the microwave receiver 112 receives a microwave having a predetermined frequency such as a microwave emitted from the vehicle speed measurement device. Specifically, the control unit 118 controls the display unit 13 so that the red arrow in the first region 131 of the display unit 13 changes from the non-display state to the display state instantaneously. At the same time, the control unit 118 recognizes the driver's line of sight that has changed the display in the first region to the location where the vehicle speed in the second region 132 of the display unit 13 is displayed. The display unit 13 is controlled to blink 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 performing route guidance to the set destination. That is, the destination setting menu is displayed on the display unit 13 to prompt the user to select a destination setting method and set the destination according to the operation of the operation button 114. The destination setting menu is displayed so that a destination search by telephone number and a destination search by address can be selected. When it is detected that the search by telephone number is selected, a telephone number input screen is displayed, and position information corresponding to the input telephone number is acquired from the database 116. When it is detected that a search by address is selected, an address selection input screen is displayed, and position 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 a 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 the recommended route, a known method such as a Dijkstra method can be used.

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

  As explained above, the first area appears to be blurred when looking forward at the display of the first area at the timing when information should be presented to the driver, such as when approaching a target, an intersection, etc. In such a state, the change from the non-display state to the display state can be recognized. At the same time, display is performed to guide the line of sight from the first area to the second area.

  In this way, the visual characteristic of the range that appears to be blurred makes it easier for the driver to notice a change in the display state of the first region 131, and the driver who notices the change determines to obtain more detailed information. In such a case, the line of sight of the front can be directed to the first region 131. The line of sight can be smoothly moved by the display for guiding the line of sight from the first area 131 to the second area 132. In this way, the display change of the first area 131 is called priming water, the driver is informed that the information to be watched is displayed in the second area 132, and the detailed information is displayed by watching the display of the second area 132. Can be guided to confirm.

  Moreover, by displaying in the 1st area | region 131 with a different color and pattern by the case where the warning regarding a target object alerting | reporting function is displayed on the 2nd area | region 132, and the case where the warning regarding a navigation function is displayed on the 2nd area | region 132, Even if the driver does not change the direction of the line of sight, the driver can recognize whether the information to be watched displayed in the second area 132 relates to the target notification function or the navigation function. Then, based on the recognition, the driver can determine whether or not to gaze at the second region 132.

[Second Embodiment]
Hereinafter, a second embodiment of the present invention will be described with reference to the drawings. The feature of the display device 1 according to the present embodiment is that the display unit 13 is attached so as to be positioned in front of the meter hood of the vehicle (that is, between the meter hood and the driver). Except for changes due to the adoption of such a configuration, the description is omitted here because it is the same as that of the first embodiment described above.

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

  FIG. 8 is a schematic view of the 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 side. FIG. 9 is a schematic view of the 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 main body 111 and the attachment member 12 are fixed to the upper surface of the edge of the meter hood 320 with an adhesive tape. In this way, the display device 1 can be easily attached to the vehicle so that the display unit 13 is positioned on the front surface of the meter hood 320. If it does in this way, the display part 13 can be arrange | positioned in the lower part of the front visual field which looks obscure when the vehicle driver gazes ahead ahead, without obstruct | occluding a driver's front visual field. Further, the display unit 13 which is a transmissive color liquid crystal display can visually recognize various meters and display devices arranged in the meter hood 320 through the display device even if the display unit 13 is arranged on the front surface of the meter hood 320. Can do. In a general vehicle, the position of the meter hood 320 is often in the lower front part of the driver, and the portion is easy to install, and the direct sunlight is blocked so that the visibility is good. In addition, 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 arranged in the center of the driver seat and the passenger seat instead of the normal driver seat front, the front of the front panel of the meter hood 320 is provided. Even if the display unit 13 is arranged, the meter hood in the center meter type vehicle having a configuration that does not fall into the range where the driver gazes forward is not applicable to the meter hood 320 assumed in the present invention. Shall.

[Modification of Embodiment]
The present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.

  For example, in the above-described 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. 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-described embodiment, the “position where the display portion is visible” where the display unit is arranged is not limited to the upper or lower portion of the front view which is visible when the vehicle driver gazes forward, for example, the central view in the peripheral view It is good also as a right or left area | region. In this case, in order not to obstruct the driver's field of view, the right-hand area of the central field of view for a right-hand drive vehicle and the left-hand area of the central field of view for a left-hand drive vehicle are displayed here as positions where they can be seen in a vague manner. It is good to provide the attachment member suitable for arrangement | positioning.

  Further, the “position where the display portion is visible” is arranged on the entire surface of the transmission portion (for example, the front window) as in the first embodiment, for example, above the meter hood (on the so-called dashboard). It is good. Moreover, it is good also as a front surface of a non-transmission part like the front surface of the meter hood illustrated in 2nd Embodiment.

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

  As a visual presentation performed in the display of the first area, in addition to displaying in different colors according to the contents of the information described in the above embodiment, it is possible to display in different display patterns according to the contents of information. Also good. For example, according to the content of information, it is good to display with patterns, such as blinking and the display of the movement which flows right and left. It is said that color vision tends to be lost at positions that appear to be blurred, and the change in the pattern can make it easier for the driver to recognize the difference than the change in color.

  In addition to the synchronized blinking display described in the above embodiment, the display for guiding the line of sight from the first area to the second area includes the display of the first area and the information to be watched in the second area. These may be displayed in the same color, connected with line segments, or a combination thereof.

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

  In the above embodiment, the case where the display device has the target object notification function and the navigation function has been described as an example. However, one or both of these functions are provided in an external device, and the display device is in the external device. You may comprise so that it may function as an external display means.

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

DESCRIPTION OF SYMBOLS 11 Main body part 12 Mounting member 13 Display part 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 part 118 Control part 121 Clip 122 Clip 123 hook 131 first area 132 second area 300 sun visor 301 light shielding plate 302 bracket 303 shaft 310 room mirror 320 meter hood

Claims (6)

An attachment portion attached to a predetermined part of the vehicle;
A display unit having a display area;
Among the display areas, second information about the vehicle or the surroundings is displayed using at least characters in a second area including an area located in the center in the left-right direction, and is located on the left or right of the second area. A display control unit that performs control to display predetermined first information using an image that does not include characters in the first region;
A display device. The said display control part performs control which displays the 3rd information regarding the said vehicle or circumference | surroundings using an at least character in the area | region located below the said 1st area | region among the said 2nd area | regions. Display device. The predetermined part is a sun visor,
The display device according to claim 1, wherein the display unit is located immediately 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, wherein the display unit overlaps at least one of 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 claim 1, wherein the display control unit changes a display state in the first region when the second information is updated. The program for functioning a computer as a display control part in the display apparatus of any one of Claim 1 to 5.

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