JP2006298054A - Display device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device for a vehicle capable of easily switching the image. <P>SOLUTION: The display device 10 is equipped with an operation part 11, an operation control part 12, a display control part 13, and a display part 14 or the like. The operation control part 12 outputs a control signal indicating that the image data corresponding to the operation signal output from the operation part 11 is displayed on the display part 14. The display control part 13 outputs the image data corresponding to the control signal output from the operation control part 11 on the display part 14. The display part 14 has a liquid crystal panel, a lenticular lens or the like, and a stereo display part displaying a plurality of image data in the vertically different directions respectively. The display part 14 displays the image displayed on a first display area and the image displayed on the second display area by the lenticular lens in the vertically different directions. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle display device.

  2. Description of the Related Art Conventionally, there is a vehicle display device disclosed in Patent Document 1 that displays an image in stereo.

The vehicular display device disclosed in Patent Literature 1 combines left and right viewpoint images related to vehicular information alternately in a pixel unit in an image synthesizer and projects the synthesized image on a screen. Then, the synthesized image is separated into left and right viewpoint images by a lenticular lens provided on the front surface of the screen and displayed so as to be observed as a stereo image. In addition, different stereo images can be seen from each direction of the driver seat and the passenger seat.
Japanese Patent No. 3513664

  However, the display apparatus for vehicles shown in patent document 1 only makes the image which can be seen in a driver's seat and a passenger seat differ. Therefore, when switching images that can be viewed in the driver's seat or the passenger seat, it is necessary to switch the images using operation means such as an operation switch.

  The present invention has been made in view of the above problems, and an object thereof is to provide a vehicular display device that can easily switch images.

  In order to achieve the above object, a vehicle display device according to claim 1 includes image output means for outputting a plurality of image data and display means for displaying the plurality of image data in different vertical directions. It is characterized by this.

  In this manner, by displaying a plurality of image data in different vertical and vertical directions, the user can easily switch images by simply changing the line of sight.

  In the vehicular display device according to claim 2, the display direction determining means for determining whether or not to change the display direction of the display means, and the display means is driven according to the determination result by the display direction determining means. And driving means for changing the display direction.

  In this way, it is possible to switch images more easily by determining whether to change the display direction, driving the display unit according to the determination result, and changing the display direction.

  According to a third aspect of the present invention, in the vehicle display device, the driving means rotates the display means about the horizontal axis.

  Thus, the display direction can be changed by rotationally driving the display means about the horizontal axis.

  According to a fourth aspect of the present invention, the drive means drives the display means in the vertical direction.

  Thus, the display direction can also be changed by driving the display means in the vertical direction.

  In addition, as the display direction determining means, as shown in claim 5, it is a visual line direction detecting means for detecting the visual line direction of the user, and the display direction when the visual line of the user is in the predetermined direction and when moving from the predetermined direction. Can be determined to change. In addition, as shown in claim 6, it is possible to determine that the display direction is changed when the user's gesture is in a predetermined state and when the user's gesture is switched from the predetermined state. Furthermore, as shown in claim 7, it is used as a traveling state determination unit that determines whether or not the vehicle is traveling, and it is determined that the display direction is changed when the vehicle is stopped from traveling and switched from traveling to traveling. be able to.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
First, the first embodiment will be described. FIG. 1 is a block diagram showing a schematic configuration of a vehicle display device according to a first embodiment of the present invention.

  As shown in FIG. 1, the vehicle display device 10 in the present embodiment includes an operation unit 11, an operation control unit 12, a display control unit 13, a display unit 14, and the like.

  The operation unit 11 is used to input an operation signal or the like indicating that image data to be displayed on the display unit 14 by a user operation is input to the operation control unit 12. The operation unit 11 is configured to be integrated with the display unit 14 and set on the display screen, a push-type hard switch provided around the display screen of the display unit 14, and displayed on the display screen of the display unit 14. A joystick that can operate the cursor in multiple directions is provided. These switches may be used alone or in combination with a plurality of switches.

  The operation unit 11 may be a remote operation device including a remote control sensor and a remote control. When receiving the infrared signal transmitted from the remote controller, the remote control sensor converts the signal into an electric signal to generate an operation signal, and inputs the operation signal to the operation control unit 12.

  When an operation signal is output from the operation unit 11, the operation control unit 12 outputs a control signal indicating that image data corresponding to the operation signal output from the operation unit 11 is displayed on the display unit 14.

  The display control unit 13 outputs image data corresponding to the control signal output from the operation control unit 11 to the display unit 14. Further, the display control unit 13 outputs one or a plurality of image data to the display unit 14 according to the control signal, that is, according to the operation signal output by the user's operation.

  The display unit 14 includes a liquid crystal panel, a lenticular lens, and the like, and is a stereo display unit that displays a plurality of image data in different vertical and vertical directions. The display surface of the liquid crystal panel is composed of a plurality of strips extending in the left-right direction with a constant width. In these strip-shaped portions, the strip-shaped portions that are the first display region and the strip-shaped portions that are the second display region are alternately arranged.

  Each strip is connected to the display control unit 13 and driven by the display control unit 13. In addition, the display control unit 13 outputs the image data individually to the belt-like portion that is the first display region and the belt-like portion that is the second display region, so that the belt-like portion that is the first display region and the It is possible to individually drive the belt-like portion which is the two display areas. Therefore, different images can be displayed in the first display area and the second display area.

  The lenticular lens is provided on the display surface of the liquid crystal panel, and is arranged so that the protrusions of the lenticular lens correspond to the belt-like portion that is the first display region and the belt-like portion that is the second display region. Is done. And the display part 14 displays the image displayed on a 1st display area, and the image displayed on a 2nd display area in a different angle direction up and down by this lenticular lens.

  The image displayed in the first display area is visible only from the viewpoint A, and the image displayed in the second display area is visible only from the viewpoint B. When the user changes the viewpoint to viewpoint A and viewpoint B, the line of sight with respect to the display unit 14 is changed, and either the image displayed in the first display area or the image displayed in the second display area Only one of them will be visually recognized.

  As an image to be displayed in the first display area and the second display area, for example, a guide route image output from a navigation device (not shown) is displayed in one display area, and imaging (not shown) is displayed in the other display area. The image of the vehicle front-back and left-right direction output from the apparatus is displayed. In this way, by displaying images in the front-rear and left-right directions of the vehicle in one display area, it is possible to confirm the vehicle width when passing through a narrow alley and the entrainment confirmation when turning right or left.

  In addition, for example, a guide route image output from a navigation device (not shown) is displayed on one display area, and a rear image of a vehicle interior output from an imaging device (not shown) is displayed on the other display area. In this way, by displaying the rear image in the passenger compartment in one display area, the user can check the situation of the child in the child seat without looking back.

  Further, for example, a guide route image output from a navigation device (not shown) is displayed in one display area, and an image in the trunk of the vehicle output from an imaging device (not shown) is displayed in the other display area. In this way, by displaying an image in the trunk of the vehicle in one display area, it is possible to check for fragile luggage in the trunk.

  Further, for example, a guide route image output from a navigation device (not shown) is displayed on one display area, and an image of traffic jam information output from a VICS device (not shown) is displayed on the other display area. Thus, by displaying the image of the VICS information output from the VICS device in one display area, the user can confirm only when he / she wants to confirm the VICS information.

  Further, for example, a guide route image output from a navigation device (not shown) is displayed in one display area, and other images are displayed in the other display area. In this way, by displaying the guide route image output from the navigation device in one display area, the user can confirm only the easily confused places such as intersections and branch points with the guide route image.

  The image displayed on the display unit 14 is not limited to a navigation image or the like, and may be various information related to the operating state of the vehicle, such as vehicle speed, engine speed, coolant temperature, remaining fuel amount, and the like.

  When switching the image to be displayed on the display unit 14, a troublesome operation such as operating an operation switch or the like is required. Further, when operating the operation switch, the user may look away from the traveling direction of the vehicle by gazing at the operation switch to find the operation switch. As described above, when the screen is switched by the operation switch, the safety may be impaired particularly during traveling of the vehicle.

  However, in the present embodiment, the user (driver) displays his / her head when switching the image to be displayed on the display unit 14 by displaying a plurality of images on the display unit 14 in different vertical and vertical directions. It is possible to switch to a different image simply by performing an easy operation such as moving up and down. Further, when switching the image to be displayed on the display unit 14, only an easy operation such as moving the head up and down is performed, so that the safety can be prevented from being impaired.

  Note that the member for displaying the image displayed in the first display area and the image displayed in the second display area in different vertical angle directions is not limited to the lenticular lens, but both front and back surfaces. Alternatively, a sheet member made of transparent polycarbonate having the first and second light shielding bands may be used.

  That is, the first light-shielding band is printed on the back surface (liquid crystal panel side) of the sheet member, the second light-shielding band is printed on the front surface (driver's seat side) of the sheet member, and the matte black paint is printed or hot stamped. Provide. The widths of the first and second light-shielding bands are the same as the widths of the respective band-shaped portions of the liquid crystal panel, and the first and second light-shielding bands are equally spaced in the left-right direction at the same interval as this width. A light passage opening is formed between the first and second light shielding bands. Then, the first and second light shielding bands on the front and back of the sheet portion are shifted in the left-right direction by half the width of the first and second light shielding bands.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. FIG. 2 is a block diagram showing a schematic configuration of the vehicle display device according to the second embodiment of the present invention. FIG. 3 is a flowchart showing the operation of the vehicle display device according to the second embodiment of the present invention.

  Since the vehicular display device 10 according to the second embodiment is common in common with that according to the first embodiment described above, a detailed description of the common parts will be omitted below, and different parts will be mainly described. To do. The second embodiment is different from the first embodiment described above in that the display direction of the display unit 14 is changed.

  As shown in FIG. 2, the vehicle display device 10 according to the present embodiment includes a detection unit 15 and a drive unit 16 in addition to the operation unit 11, the operation control unit 12, the display control unit 13, and the display unit 14.

  The detection unit 15 detects the traveling state of the vehicle, which is a condition for determining whether or not to change the display direction of the display unit 14, that is, the image display angle of the display unit 14 with respect to the user. A speed is detected, and a detection signal indicating the detected vehicle speed is output.

  The display control unit 13 determines whether or not to change the display direction of the display unit 14 based on the vehicle speed detected by the detection unit 15. That is, the display control unit 13 determines whether the traveling state of the vehicle has been switched from traveling to stopping or from stopping to traveling based on the detection signal (vehicle speed) output from the detecting unit 15. 14 is determined whether to change the display direction. Then, the display control unit 13 outputs a drive signal to the drive unit 16 based on the determination result of whether or not to change the display direction of the display unit 14.

  The drive unit 16 includes an actuator such as a motor, and rotates the display unit 14 around a horizontal axis based on a drive signal from the display control unit 13. Therefore, when the display unit 14 is driven by the driving unit 16, the display unit 14 is tilted by a predetermined angle from the normal position in the direction in which the display unit 14 faces upward (hereinafter also referred to as a tilted position), or the display unit 14 is moved upward. It rotates from a position inclined by a predetermined angle in the direction it faces to the normal position. Further, the drive unit 16 notifies the display control unit 13 of the position of the display unit 14 by outputting a position signal indicating a rotation angle obtained by rotating the display unit 14 to the display control unit 13.

  The normal position is a position where only one of the first and second display areas can be visually recognized when the user is in a driving posture, and the position where the display unit 14 is inclined by a predetermined angle in the upward direction. When the user is in the driving posture, only the other display area of the display area at the normal position is visible.

  Here, the operation of the vehicle display device 10 in the present embodiment will be described. The flow shown in FIG. 3 starts when power supply to the vehicle display device 10 is started.

  In step S10, the display control unit 13 detects the traveling state of the vehicle in order to determine whether or not to change the display direction of the display unit 14. That is, the display control unit 13 detects the traveling state of the vehicle by acquiring the detection signal output from the detection unit 15.

  In step S11, the display control unit 13 determines whether or not the traveling state of the vehicle has been switched from traveling to stopping. When the vehicle speed indicated by the detection signal is switched from the predetermined speed (1 km / h) or more to zero, the display control unit 13 regards that the traveling state of the vehicle has switched from traveling to stopping, and proceeds to step S12. If the vehicle speed indicated by the signal has not been switched from the predetermined speed (1 km / h) or more to zero, it is considered that the traveling state of the vehicle has not been switched from traveling to stopping, and the process proceeds to step S13.

  In step S12, the display control unit 13 outputs a drive signal indicating that the display unit 14 is rotationally driven from the normal position to the inclined position because the vehicle is switched from running to stopping. The drive unit 16 that has acquired the drive signal rotates the display unit 14 from the normal position to the tilt position.

  In step S13, the display control unit 13 determines whether or not the traveling state of the vehicle has been switched from being stopped to traveling. Then, when the vehicle speed indicated by the detection signal is switched from zero to a predetermined speed (1 km / h) or more, the display control unit 13 regards that the traveling state of the vehicle is switched from the stop to the traveling, and proceeds to step S14. If the vehicle speed indicated by the signal has not been switched from zero to a predetermined speed (1 km / h) or more, it is considered that the traveling state of the vehicle has not been switched from stopping to traveling, and the process returns to step S10.

  In step S14, the display control unit 13 outputs a drive signal indicating that the display unit 14 is rotationally driven from the tilt position to the normal position because the vehicle is switched from the stop to the travel. The drive unit 16 that has acquired the drive signal rotates the display unit 14 from the tilt position to the normal position.

  In this way, it is determined whether or not to change the display direction, the display unit 14 is driven according to the determination result, and the display direction is changed, so that the user switches the image without moving the viewpoint A. It will be.

  Further, by changing the display direction of the display unit 14 according to the running state of the vehicle, the display direction of the display unit 14 is changed between when the vehicle is running and when the vehicle is stopped. The display image on the display unit 14 can be switched between when the vehicle is traveling and when the vehicle is stopped.

  For example, when a guide route image output from a navigation device (not shown) is displayed in one display area and a TV image output from a TV tuner (not shown) is displayed in the other display area, the vehicle is running Only the guide route image can be viewed by the user, and the television image can be viewed only when the vehicle is stopped.

  In the above-described embodiment, the drive unit 16 has been described using an example in which the display unit 14 is driven to rotate about the horizontal axis, but the present invention is not limited to this. For example, the drive unit 16 may drive the display unit 14 in the vertical direction.

  In the above-described embodiment, the example in which the vehicle speed of the vehicle is used as a condition for determining whether or not to change the display direction of the display unit 14 has been described. However, the present invention is limited to this. It is not something.

  For example, a gaze direction detection device that detects the gaze direction of the user is provided, and the user's gaze direction detected by the gaze direction detection device may be used as a condition for determining whether or not to change the display direction of the display unit 14. Good. In this case, an imaging unit composed of a CCD or the like that detects the gaze direction based on the orientation of the user's pupil, a gaze direction determination unit that determines whether or not the user's gaze direction detected by the imaging unit is a predetermined direction, and the like. . Then, the display control unit 13 determines to change the display direction of the display unit 14 when the user's line of sight is in the predetermined direction and when the user moves from the predetermined direction.

  Further, a gesture detection device that detects a user's gesture may be provided, and the user's gesture detected by the gesture detection device may be used as a condition for determining whether or not to change the display direction of the display unit 14. In this case, an imaging unit including a CCD or the like that detects the user's gesture, a gesture determination unit that determines whether or not the user's gesture detected by the imaging unit is in a predetermined state, and the like are provided. Then, the display control unit 13 determines to change the display direction of the display unit 14 when the gesture is in the predetermined state and when the gesture is switched from the predetermined state.

  In the above-described embodiment, the display area in the display unit 14 has been described by using an example in which the display area is two display areas including the first and second display areas. The present invention is not limited, and three or more display areas may be provided.

It is a block diagram which shows schematic structure of the display apparatus for vehicles in the 1st Embodiment of this invention. It is a block diagram which shows schematic structure of the display apparatus for vehicles in the 2nd Embodiment of this invention. It is a flowchart which shows operation | movement of the display apparatus for vehicles in the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Display apparatus for vehicles, 11 Operation part, 12 Operation control part, 13 Display control part, 14 Display part, 15 Detection part, 16 Drive part

Claims (7)

Image output means for outputting a plurality of image data;
Display means for displaying the plurality of image data in different vertical and vertical directions, respectively.
A vehicle display device comprising:   Display direction determination means for determining whether or not to change the display direction of the display means, and drive means for changing the display direction by driving the display means in accordance with a determination result by the display direction determination means. The vehicular display device according to claim 1, wherein the vehicular display device is provided.   The vehicle display device according to claim 2, wherein the driving unit rotationally drives the display unit about a horizontal axis.   The vehicle display device according to claim 2, wherein the driving unit drives the display unit in a vertical direction.   The display direction determination unit includes a line-of-sight direction detection unit that detects a user's line-of-sight direction, and determines that the display direction is changed when the user's line-of-sight is in a predetermined direction and when the user moves from the predetermined direction. The vehicle display device according to any one of claims 2 to 4, wherein:   The display direction determining means includes gesture detecting means for detecting a user's gesture, and determines that the display direction is changed when the user's gesture is in a predetermined state and when the user's gesture is switched from the predetermined state. The vehicle display device according to any one of claims 2 to 5.   The display direction determination means includes travel state determination means for determining whether or not the vehicle is traveling, and determines that the display direction is to be changed when the vehicle is stopped from traveling and switched from stopped to traveling. The vehicular display device according to any one of claims 2 to 6.

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