Vehicle display device and image display method

Abstract

A vehicle display device (1) comprises: an image acquisition unit that acquires a peripheral image (40) that is an image obtained by imaging a peripheral area of ​​a vehicle (100), the peripheral area including a rear area of ​​the vehicle (100); and a display device (2) that displays the peripheral image (40) in a display area (120) in a windshield (110) of the vehicle, the display area (120) being an upper area in the windshield (110) and being an area that is continuous from one end to another end in a vehicle width direction (Y) in the windshield (110).

Description

Area

[0001] The present invention relates to a vehicle display device and image display methods. background

[0002] Conventionally, a technique for displaying an image on a windshield has been proposed. Patent Literature 1 discloses a windshield structure for vehicles that enables a video displaying a rear side of a vehicle to be visually recognized satisfactorily even when the periphery of the vehicle is bright. The vehicle windshield structure of Patent Literature 1 is provided on the upper surface of a vehicle in a windshield and includes a transparent display unit on which the video displaying the rear side of the vehicle is displayed, and a light-shielding member that shields a display area including the display unit in the windshield from light when the periphery of the vehicle has a brightness greater than a predetermined brightness. Citation listPatent literature

[0003] Patent literature 1: JP 2020 - 011 586 A SummaryTechnical task

[0004] It is desirable to be able to reduce the movement of a line of sight when a driver checks the periphery of the vehicle, including the rear of the vehicle. For example, if a mirror showing the rear of the vehicle is separated from a mirror showing a diagonal rear of the vehicle, the line of sight will move significantly when checking the periphery.

[0005] It is an object of the present invention to provide a vehicle display device and an image display method that can reduce a movement of a driver's line of sight in a case where the driver checks the periphery of a vehicle including a rear side of the vehicle. Solution to the task

[0006] A vehicle display device according to the present invention includes an image acquisition unit that acquires a peripheral image obtained by imaging a peripheral region of a vehicle, the peripheral region including a rear region of the vehicle; and a display device that displays the peripheral image in a display region in a windshield of the vehicle, the display region being an upper region in the windshield and being a region continuous from one end to the other end in a vehicle width direction in the windshield. Advantageous effects of the invention

[0007] In the vehicle display device according to the present invention, the windshield display area is an upper area in the windshield, and is a region that is continuous from one end to the other end in the vehicle width direction in the windshield. The vehicle display device according to the present invention displays an image covering a large area of ​​the rear of the vehicle in the display area, and this has the advantageous effect of reducing the movement of the driver's line of sight when the driver checks the periphery of the vehicle. Short description of the drawings Fig. 1 is a diagram illustrating a display device according to an embodiment. Fig. 2 is a sectional view showing the display device according to the embodiment. Fig. 3 is a diagram illustrating a display area according to the embodiment. Fig. 4 is a block diagram of a vehicle display device according to the embodiment. Fig. 5 is a diagram explaining an imaging region according to the embodiment. Fig. 6 is a diagram illustrating an example of a peripheral image according to the embodiment. Fig. 7 is a diagram illustrating an example of the peripheral image according to the embodiment. Fig. 8 is a flowchart relating to an image display method according to the embodiment. Fig. 9 is a diagram illustrating the peripheral image and a warning image according to the embodiment. Fig. 10 is a diagram illustrating an example of a camera according to the embodiment. Fig. 11 is a diagram illustrating a schematic configuration of a display device according to a variation of the embodiment. Description of embodiments

[0008] A vehicle display device and an image display method according to an embodiment of the present invention will be described in detail below with reference to the drawings. It should be noted that this embodiment does not limit the invention. Furthermore, the components of the embodiment described below include components that are easily conceived by those skilled in the art or substantially the same components. [Embodiment]

[0009] An embodiment is described with reference to the Fig. 1 to 10. The present embodiment relates to a vehicle display device and an image display method. Fig. 1 is a diagram illustrating a display device according to the embodiment, Fig. 2 is a sectional view of the display device according to the embodiment, Fig. 3 is a diagram illustrating a display area according to the embodiment, Fig. 4 is a block diagram of a vehicle display device according to the embodiment, Fig. 5 is a diagram explaining an imaging area according to the embodiment, Fig. 6 and Fig. 7 are diagrams illustrating an example of a peripheral image according to the embodiment, Fig. 8 is a flowchart relating to an image display method according to the embodiment, Fig. 9 is a diagram illustrating the peripheral image and a warning image according to the embodiment, and Fig. 10 is a diagram illustrating an example of a camera according to the embodiment. Fig. 2 represents the cross section II-II of Fig. 1.

[0010] Fig. 1 illustrates a display device 2 according to the present embodiment. The display device 2 according to the present embodiment is a display device that has a transparent film shape and is arranged in a windshield 110 of a vehicle 100. The display device 2 is a light-emitting display, for example, an organic EL display (OLED). The illustrated display device 2 is arranged over the entire surface of the windshield 110. The display device 2 is arranged, for example, on an inner surface 110a of the windshield 110, as shown in Fig. 2. The inner surface 110a is a surface on the rear side X2 in a vehicle forward / backward direction X in the windshield 110 and is a surface facing the driver 200. Note that a position of the display device 2 is not limited to the inner surface 110a. The display device 2 may be arranged, for example, in a laminated glass that includes the windshield 110.

[0011] As in Fig. As shown in FIG. 2, an edge of the windshield 110 according to the present embodiment adheres to a vehicle body 170 of the vehicle 100 and is held by the vehicle body 170. The display device 2 is arranged to cover the windshield 110 from one end 110b to another end 110c in a vehicle width direction Y. Here, one end 110b and the other end 110c of the windshield 110 are boundaries of an area facing a vehicle interior. In other words, the display device 2 covers the entirety from a left end to a right end of an area visually recognized by the driver 200 in the windshield 110. Similarly, the display device 2 covers the entirety from an upper end to a lower end of the windshield 110. Or in other words: the display device 2 covers the entire area that is visually recognized by the driver 200 in the windscreen 110.It should be noted that, for mounting purposes on the vehicle 100, the display device 2 may be arranged such that one end 110b and the other end 110c are exposed. In other words, there may be a slight gap between the vehicle body 170 and the display device 2.

[0012] A vehicle display device 1 according to the present embodiment causes the display device 2 to display an image in a display area 120 of the windshield 110 as shown in Fig. 3. The display area 120 is an upper area in the windshield 110 and is a region that is continuous from one end to the other end in the vehicle width direction Y in the windshield 110. Preferably, one end 120b of the display area 120 coincides with one end 110b of the windshield 110. Preferably, the other end 120c of the display area 120 coincides with the other end 110c of the windshield 110. The illustrated display area 120 is a single area that is continuous from one end 110b to the other end 110c of the windshield 110. One shape of the display area 120 is a band shape that extends in the vehicle width direction Y.

[0013] A specific shape of the display area 120 is determined in accordance with a shape of the front panel 110. The shape of the display area 120 is, for example, a trapezoid or a rectangle. If an upper side of the front panel 110 is curved, the display area 120 can be curved to correspond to that side.

[0014] Fig. 4 is a block diagram of the vehicle display device 1 according to the present embodiment. The vehicle display device 1 includes the display device 2 and a control unit 3. The control unit 3 is a display control unit including a computer with an arithmetic unit and a memory, as well as an input / output interface. The control unit 3 may be configured as an electronic control unit (ECU). A program or data for performing operations according to the present embodiment is prestored in the memory of the control unit 3.

[0015] The control unit 3 includes an image acquisition unit 31, an information acquisition unit 32, a recognition unit 33, a generation unit 34, and an output unit 35. The image acquisition unit 31, the information acquisition unit 32, the recognition unit 33, the generation unit 34, and the output unit 35 may be functions achieved according to the program or dedicated processing circuits.

[0016] The image acquisition unit 31 captures a peripheral image 40 from a camera 130 installed in the vehicle 100. The peripheral image 40 is an image obtained by capturing a peripheral area of ​​the vehicle 100, including the rear area of ​​the vehicle 100. Fig. 5 shows an example of the arrangement of the camera 130. The Fig. The camera 130 shown in Figure 5 is arranged in a rear area of ​​the vehicle 100 and images the peripheral area of ​​the vehicle 100. More specifically, the camera 130 images a rear area Ra of the vehicle 100, a diagonally left rear area Rb of the vehicle 100, and a diagonally right rear area Rc of the vehicle 100.

[0017] An imaging area of ​​the camera 130 is determined based on the Fig. 5 is determined. The rear view angle θ is an angle of a pseudo-field of view when a rear side is viewed from a predetermined point P1 of the vehicle 100, and is an angle in the horizontal direction. In other words, the rear view angle θ corresponds to a view angle in the horizontal direction of the camera 130 when the camera 130 is installed at the predetermined point P1. The camera 130 is configured to image at least a range of the rear view angle θ when the rear side of the vehicle is viewed from the predetermined point P1 to generate an image indicating the range of the rear view angle θ. The predetermined point P1 is, for example, an eye point EP of the vehicle 100. The predetermined point P1 may be a center point of an eye area or a center point of an eye box of the vehicle 100.The predetermined point P1 may be a point on the windshield 110 and may, for example, be a center point in the vehicle width direction Y in the display area 120.

[0018] Fig. 6 illustrates an example of the peripheral image 40 captured by the camera 130. The peripheral image 40 includes a region 40a in which the rear area Ra was imaged, a region 40b in which the diagonally left rear area Rb was imaged, and a region 40c in which the diagonally right rear area Rc was imaged. In other words, the peripheral image 40 is a continuous image obtained by imaging a region from the diagonally left rear side to the diagonally right rear side of the vehicle 100. The vehicle display device 1 causes the display device 2 to display the peripheral image 40 in the display area 120.

[0019] Fig. 7 illustrates the peripheral image 40 displayed in the display area 120 of the windshield 110. The driver 200 can use the peripheral image 40 to check the situation in a wide area encompassing a diagonal rear side of the vehicle 100. A range from the diagonally left rear side to the diagonally right rear side of the vehicle 100 is seamlessly displayed as a single image, allowing the driver 200 to easily grasp a peripheral situation of the vehicle 100.

[0020] In conventional general vehicles, the driver 200 must direct his or her line of sight toward mirrors that differ depending on whether a rear side of the vehicle or a diagonal rear side of the vehicle is to be checked. Accordingly, in a case where an attempt is made to check a wide area from a diagonally left rear side to a diagonally right rear side of the vehicle, the line of sight must be moved greatly. In contrast, the vehicle display device 1 according to the present embodiment enables the inspection of a wide area using a single peripheral image 40. Therefore, the vehicle display device 1 according to the present embodiment can reduce the amount of movement of the driver 200's line of sight when checking the peripheral situation.

[0021] Furthermore, the vehicle display device 1 according to the present embodiment causes a warning image 50 to be displayed when the peripheral image 40 includes a target requiring caution, as described below. As shown in Fig. As shown in Figure 4, the information acquisition unit 32 acquires various types of information from a sensor 140 and an ECU of the vehicle 150. The sensor 140 is a sensor disposed in the vehicle 100 that detects the peripheral situation of the vehicle 100. The sensor 140 may, for example, include a LiDAR that detects a direction and distance to an object in the periphery, a distance sensor such as a millimeter-wave radar, or another sensor or a stereo camera.

[0022] The information acquisition unit 32 acquires information about a direction of an object located in the surroundings of the vehicle 100 and a distance between the vehicle 100 and the object from the sensor 140. The information acquisition unit 32 can also obtain information about the shape of the object or information about the moving speed of the object from the sensor 140.

[0023] The vehicle ECU 150 is a control device that controls the vehicle 100 and is, for example, an integrated control unit that performs integrated control of the vehicle 100. The information acquisition unit 32 acquires information about the vehicle 100 from the vehicle ECU 150. The information acquisition unit 32 acquires information related to, for example, the driving speed, acceleration, a gear position, a driving mode, a turn signal, or a steering angle of the vehicle 100 from the vehicle ECU 150. The information acquisition unit 32 can acquire information about route guidance by a navigation device from the vehicle ECU 150 or a navigation device.

[0024] Note that the information acquisition unit 32 may receive a detection result from the sensor 140 via the vehicle ECU 150. If the vehicle ECU 150 has information about a direction of a peripheral object and a distance to the peripheral object, this information may be transmitted from the vehicle ECU 150 to the information acquisition unit 32. The information acquisition unit 32 transmits information acquired by the sensor 140 and the vehicle ECU 150 to the recognition unit 33.

[0025] The recognition unit 33 detects the target of caution included in the peripheral image 40. The recognition unit 33 performs, for example, image recognition on the peripheral image 40 to extract an object displayed in the peripheral image 40. The recognition unit 33 determines whether the extracted object is a candidate object for the target of caution. The candidate object includes another vehicle, a moving body such as a pedestrian, or a structure such as a building.

[0026] The recognition unit 33 determines, from among the detected candidate objects, an object that meets predetermined conditions as the target of caution. For example, if the candidate object is another vehicle, the recognition unit 33 determines whether it is the target of caution based on the size of the candidate object. In this case, if the size of the candidate object is greater than or equal to a predetermined value, the candidate object can be determined as the target of caution. Similarly, in a case where the candidate object is a pedestrian and in a case where the size of the candidate object is greater than or equal to a predetermined value, the recognition unit 33 can determine that the candidate object is the target of caution.

[0027] The recognition unit 33 can determine the target for which caution is required based on the information acquired by the information acquisition unit 32. In this case, for example, information about an object in the periphery detected by the sensor 140 is linked to the candidate object extracted from the peripheral image 40. The recognition unit 33 determines whether the candidate object is the target for which caution is required based on the sensor information associated with the candidate object.

[0028] Here, an operation of the vehicle display device 1 according to the present embodiment will be described with reference to the flowchart of Fig. 8. In step S10, the image acquisition unit 31 acquires the peripheral image 40 from the camera 130. After performing step S10, the processing proceeds to step S20.

[0029] In step S20, the information acquisition unit 32 acquires information from the sensor 140 and the vehicle ECU 150. When step S20 has been executed, the processing proceeds to step S30.

[0030] In step S30, the detection unit 33 determines whether a current shift position is an R position for reverse movement. If the determination in step S30 is affirmative to determine that the current shift position is the R position, processing proceeds to step S40, and if the determination is negative, processing proceeds to step S70.

[0031] In step S40, the recognition unit 33 determines whether a caution target has been detected at the time of reversing. In a case where the shift position is the R position, an object located on a route behind the vehicle 100 or an object located near the route is determined as the caution target. The recognition unit 33 determines, for each of the extracted candidate objects, whether a candidate object is located on the route of the vehicle 100 or near the route. A candidate object located on the route or near the route is registered in a list as a caution target.

[0032] The recognition unit 33 may determine whether the candidate object is the target to be cautious of based on a distance between the vehicle 100 and the candidate object. For example, an object whose distance from the vehicle 100 is less than or equal to a lower limit is determined as the target to be cautious of. The recognition unit 33 may determine whether the candidate object is the target to be cautious of based on the speed of the candidate object relative to the vehicle 100. For example, an object whose approach speed to the vehicle 100 is greater than or equal to an upper limit is determined as the target to be cautious of. If the determination in step S40 is affirmative to determine that the target to be cautious of has been detected, the processing proceeds to step S50, and if the determination is negative, the processing proceeds to step S100.

[0033] In step S50, the generation unit 34 generates the warning image 50 at the time of reversing. The generation unit 34 generates the warning image 50 based on a detection result of the detection unit 33. The warning image 50 is an image for warning of the target for which caution is required. Fig. 9 shows an example of a warning image 50. The warning image 50 of Fig. 9 is an image generated for a pedestrian located behind the vehicle 100. In other words, the warning image 50 in Fig. 9 is an image warning the driver 200 of a pedestrian located on a rear side of the vehicle.

[0034] The warning image 50 shown is a rectangular image surrounding a pedestrian who is the target for whom caution is required. Fig. 9, warning images 50 are displayed that have different colors depending on the distance to the target to be cautious of. A warning image 50 having a color requiring a high degree of caution, e.g., red, is displayed for a target to be cautious of near the vehicle 100. A warning image 50 in a color with a low degree of caution, e.g., yellow-green or yellow, is displayed for a target to be cautious of some distance from the vehicle 100. The generation unit 34 generates the warning image 50 for the target to be cautious of detected in step S40. When step S50 has been executed, processing proceeds to step S60.

[0035] In step S60, the output unit 35 causes the display device 2 to display the peripheral image 40 and the warning image 50. The output unit 35 outputs an image to be displayed to the display device 2. For example, the output unit 35 superimposes the warning image 50 acquired by the generation unit 34 on the peripheral image 40 to generate a composite image. In this case, the output unit 35 outputs the composite image to the display device 2. According to the present embodiment, the output unit 35 outputs the peripheral image 40 to the display device 2 without changing the aspect ratio of the peripheral image 40. In other words, an image captured by the camera 130 is displayed on the display device 2 in a state where the aspect ratio of the image is maintained.It should be noted that the output unit 35 can correct the peripheral image 40 or the composite image depending on the shape of the windshield 110. For example, if the shape of the display area 120 is trapezoidal, a correction can be made to convert a rectangular image captured by the camera 130 into a trapezoidal image. It should be noted that the control unit 3 can cause a speaker 160 to emit a warning sound warning of the target requiring caution. When step S60 is executed, the flowchart is terminated.

[0036] In step S70, the detection unit 33 determines whether a target requiring caution at the time of forward movement has been detected. If the shift position is not different from the R position or if the shift position is a forward movement position, the detection unit 33 detects the target requiring caution at the time of forward movement. In this case, a target requiring caution is an object approaching the vehicle 100 from a rear side. For example, another vehicle approaching the same lane as the vehicle 100 from a rear side is a candidate object. For example, when the vehicle 100 changes lanes, another vehicle traveling in the lane of a travel target is a candidate object. For example, a motorcycle attempting to overtake the vehicle 100 is a candidate object.

[0037] From these candidate objects, an object that satisfies predetermined conditions is determined as the caution target. The predetermined conditions include, for example, the condition that the distance between the vehicle 100 and another vehicle is less than or equal to a lower limit, or the condition that the approach speed of another vehicle to the vehicle 100 is greater than or equal to an upper limit. If the determination of step S70 is affirmative to determine that the caution target has been detected, processing proceeds to step S80, and if the determination is negative, processing proceeds to step S100.

[0038] In step S80, the generation unit 34 generates a warning image 50 at the time of forward movement. The generation unit 34 generates the warning image 50 for the target of caution detected in step S70. The warning image 50 at the time of forward movement is, for example, a frame-shaped image surrounding another vehicle. If step S80 has been executed, processing proceeds to step S90.

[0039] In step S90, the output unit 35 causes the display device 2 to display the peripheral image 40 and the warning image 50. The output unit 35 outputs to the display device 2 a composite image in which the warning image 50 is superimposed on the peripheral image 40. When step S90 is executed, the flowchart is terminated.

[0040] In step S100, the output unit 35 causes the display device 2 to display the peripheral image 40. In this case, the peripheral image 40, which does not include the warning image 50, is displayed in the display area 120, as shown in Fig. 7. When step S100 has been executed, the flowchart is terminated.

[0041] The vehicle display device 1 according to the present embodiment enables the driver 200 to recognize at a glance a direction in which the target to be cautious of is located in a wide range behind the vehicle 100.

[0042] The vehicle display device 1 according to the present embodiment displays a wide rear image in the display area 120. The Fig. For example, the rear viewing angle θ shown in Figure 5 is a value of 140° to 180°. Preferably, the rear viewing angle θ should be 140° or more and 150° or less. The peripheral image 40 is captured with such a wide rear viewing angle θ, and this provides the driver 200 with information suitable for peripheral inspection.

[0043] It should be noted that the vehicle display device 1 can capture the peripheral image 40 from a plurality of cameras 130. The Fig. The vehicle 100 shown in Figure 10 is equipped with three cameras 130. The cameras 130 include a first camera 130a, a second camera 130b, and a third camera 130c. The first camera 130a is arranged in a rear portion of the vehicle 100 and captures a rear side X2 of the vehicle 100. The second camera 130b is arranged in a left side portion of the vehicle 100. The second camera 130b captures a left side and a diagonal left rear side of the vehicle 100. The third camera 130c is arranged in a right side portion of the vehicle 100. The third camera 130c captures a right side and a diagonal right rear side of the vehicle 100.

[0044] The second camera 130b and the third camera 130c are arranged on the sides of the windshield 110 and are located, for example, at positions corresponding to the exterior mirrors. The second camera 130b is arranged so that it can image an object Ob1 located on the left side of the vehicle 100. The third camera 130c is arranged so that it can image an object Ob2 located on the right side of the vehicle 100.

[0045] The image acquisition unit 31 combines a plurality of images acquired by the first camera 130a, the second camera 130b, and the third camera 130c to generate the peripheral image 40. The peripheral image 40 acquired as described above includes the objects Ob1 and Ob2 located on the sides of the vehicle 100. Therefore, the driver 200 can confirm the presence of the objects Ob1 and Ob2 on the sides based on the peripheral image 40.

[0046] When a motorcycle that has approached the vehicle 100 from the rear passes by the left or right side of the vehicle 100, the driver 200 can sequentially check the movement of the motorcycle based on the peripheral image 40. The driver 200 can view the peripheral image 40 by slightly shifting the line of sight from a state of visually recognizing the front. Therefore, the vehicle display device 1 according to the present embodiment makes it possible to check a rear side of the vehicle or a side of the vehicle without requiring a large movement of the line of sight. Furthermore, the vehicle display device 1 performs display such that the warning image 50 is superimposed on the motorcycle that is passing by the side of the vehicle 100. The warning image 50 is displayed in / with a color or brightness that easily attracts the attention of the driver 200.Therefore, the rider 200 can detect movement of the motorcycle while looking forward without directing his line of sight toward the peripheral image 40.

[0047] As described above, the vehicle display device 1 according to the present embodiment includes the image acquisition unit 31 and the display device 2. The image acquisition unit 31 acquires the peripheral image 40. The peripheral image 40 is an image obtained by imaging a peripheral area of ​​the vehicle 100, including the rear area of ​​the vehicle 100. The display device 2 displays the peripheral image 40 in the display area 120 in the windshield 110 of the vehicle 100.

[0048] The display area 120 is an upper area in the windshield 110 of the vehicle 30 and is a region that is continuous from one end to the other end in the vehicle width direction Y in the windshield 110. The vehicle display device 1 according to the present embodiment displays the peripheral image 40 in an area that is wide in the vehicle width direction Y, and this can reduce movement of the line of sight of the driver 200 required for checking the periphery.

[0049] The display device 2 according to the present embodiment includes a transparent display arranged in the windshield 110. The peripheral image 40 is displayed by this display. This allows the peripheral image 40 to be displayed without obstructing the front field of view of the driver 200.

[0050] The peripheral image 40 according to the present embodiment is a continuous image obtained by imaging a range from a diagonally left rear side to a diagonally right rear side of the vehicle 100. An image imaging a wide range as described above is displayed. This effectively reduces movement of the line of sight at a time when the driver 200 checks the periphery of the vehicle 100.

[0051] The peripheral image 40 according to the present embodiment is an image obtained by imaging a range of a rear view angle θ, which serves as an angle of a field of view in the horizontal direction when a rear side is viewed from the predetermined point P1 of the vehicle 100. An angle of the rear view angle θ is appropriately adjusted, and this can provide the driver 200 with a suitable rear view field.

[0052] The peripheral image 40 may be a continuous image obtained by imaging an area from the left side to the right side of the vehicle 100. Such a peripheral image 40 is generated, for example, from images captured by multiple cameras 130. The peripheral image 40 includes images displaying the sides of the vehicle 100. This effectively reduces movement of the line of sight at a time when the driver 200 checks the periphery of the vehicle 100.

[0053] The vehicle display device 1 according to the present embodiment includes the generation unit 34. The generation unit 34 generates the warning image 50, which serves as an image for warning the target of caution, and which includes the peripheral image 40. The display device 2 displays the peripheral image 40 and the warning image 50 in the display area 120. The vehicle display device 1 according to the present embodiment displays the warning image 50 and can thus draw the attention of the driver 200 to the target of caution.

[0054] An image display method according to the present embodiment includes a step of displaying the peripheral image 40 in the display area 120 in the windshield 110 of the vehicle 100. In the flowchart of Fig. 8, the peripheral image 40 is displayed in the display area 120 in step S60, step S90, and step 100. The image display method according to the present embodiment can reduce movement of the driver's line of sight 200 required for checking the periphery.

[0055] Note that the position and shape illustrated for the display area 120 are examples and are not limited to this position and shape. For example, the length of the display area 120 in the vehicle width direction Y can be determined depending on the viewing angle of the peripheral image 40 to be displayed. When ensuring a sufficient length to display the peripheral image 40, a distance may be maintained between the display area 120 and the vehicle body 170. [Variation of the embodiment]

[0056] A variation of the embodiment is described with reference to Fig. 11 described. Fig. 11 is a diagram illustrating a schematic configuration of a display device according to the embodiment. A vehicle display device 1 according to the embodiment differs from the vehicle display device 1 according to the above-described embodiment, for example, in that an image is projected onto the display area 120.

[0057] As in Fig. As shown in FIG. 11, a display device 2 according to the embodiment is a so-called head-up display device. The display device 2 includes a display unit 20, a backlight unit 21, a mirror 22, a housing 23, and a transparent cover 24. The display unit 20, the backlight unit 21, and the mirror 22 are housed in the housing 23. The cover 24 closes an opening of the housing 23. The opening of the housing 23 faces the windshield 110 in an up / down direction Z of the vehicle.

[0058] The display unit 20 is, for example, a liquid crystal display device such as a thin-film transistor liquid crystal display (TFT-LCD). An image of the display unit 20 is output as display light Lt using light from the backlight unit 21. The mirror 22 reflects the display light Lt toward the display area 120 of the windshield 110. The display light Lt transmitted through the cover 24 is reflected by the display area 120 toward the driver 200. The driver 200 visually recognizes a virtual image Vi using the display light Lt.

[0059] At the Fig.In the vehicle display device 1 shown in Figure 11, a control unit 3 is housed in the housing 23. The control unit 3 captures the peripheral image 40 to generate the warning image 50, similar to the control unit 3 in the embodiment described above. The control unit 3 causes the display unit 20 to display the peripheral image 40 and the warning image 50. This causes the peripheral image 40 and the warning image 50 to be displayed in the display area 120 of the windshield 110.

[0060] The virtual image Vi including the peripheral image 40 and the warning image 50 is formed at a position in front of the windshield 110. Accordingly, the movement of the line of sight is reduced when the driver 200 visually recognizes the peripheral image 40 and the warning image 50, and an adjustment amount of a focal length is also reduced.

[0061] It should be noted that the vehicle display device 1 can adjust the projection position of the indicator light Lt depending on a detection result of a driver monitor 7. The driver monitor 7 is a camera that images the driver 200. An eye point EP of the driver 200 is detected based on an image captured by the driver monitor 7. The control unit 3 adjusts the projection direction of the indicator light Lt depending on the detected eye point EP. The adjustment of the projection direction is achieved, for example, by rotating the mirror 22.

[0062] Note that, in addition to the transparent display according to the embodiment, the vehicle display device 1 may also include the head-up display device according to the variation as the display device 2. In this case, the peripheral image 40 may be displayed by the transparent display device, and the warning image 50 may be displayed by the head-up display device.

[0063] The contents of the embodiment and the variation described above can be combined and implemented as appropriate. List of reference symbols 1 VEHICLE DISPLAY DEVICE 2 DISPLAY DEVICE 3 CONTROL UNIT 7 DRIVER MONITOR 20 DISPLAY UNIT 21 BACKLIGHT UNIT 22 MIRROR 23 HOUSING 24 COVER 31 IMAGE ACQUISITION UNIT 32 INFORMATION COLLECTION UNIT 33 RECOGNITION UNIT 34 PRODUCTION UNIT 35 DISPENSING UNIT 40 PERIPHERAL IMAGE 50 WARNING IMAGE 100 VEHICLES 110 Windscreen 110a INTERIOR SURFACE 110b AN END 110c ANOTHER ENDING 120 DISPLAY AREA 130 CAMERA 140 SENSOR 150 VEHICLE ECU 160 SPEAKERS 170 VEHICLE BODY 200 DRIVERS EP EYE POINT Lt INDICATOR LIGHT Vi VIRTUAL IMAGE X VEHICLE FORWARD / REVERSE DIRECTION Y VEHICLE WIDTH DIRECTION Z VEHICLE UP / DOWN DIRECTION QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] JP 2020 - 011 586 A

[0003]

Claims

[1] Vehicle display device comprising: an image acquisition unit that acquires a peripheral image, which is an image obtained by imaging a peripheral area of ​​a vehicle, the peripheral area including a rear area of ​​the vehicle; and a display device that displays the peripheral image in a display area in a windshield of the vehicle, wherein the display area is an upper area in the windshield and is an area continuous from one end to another end in a vehicle width direction in the windshield. [2] A vehicle display device according to claim 1, wherein the display device comprises a display which is transparent and arranged in the windscreen, and the peripheral image is displayed by the display. [3] The vehicle display device according to claim 1, wherein the peripheral image is a continuous image obtained by imaging a range from a diagonally left rear side to a diagonally right rear side of the vehicle. [4] A vehicle display device according to claim 3, wherein the peripheral image is an image obtained by imaging a range of a rear viewing angle, which is an angle of a field of view in a horizontal direction when a rear side is viewed from a predetermined point of the vehicle. [5] The vehicle display device according to claim 1, wherein the peripheral image is a continuous image obtained by imaging a range from a left side to a right side of the vehicle. [6] A vehicle display device according to any one of claims 1 to 4, further comprising: a generating unit that generates a warning image that is an image for warning of a target that requires caution and that is included in the peripheral image, wherein the display device displays the peripheral image and the warning image in the display area. [7] A method for displaying an image, comprising: a step of displaying a peripheral image in a display area in a windshield of a vehicle, wherein the peripheral image is an image obtained by imaging a peripheral area of ​​the vehicle, the peripheral area including a rear area of ​​the vehicle, and the display area is an upper area in the windshield and is an area continuous from one end to another end in a vehicle width direction in the windshield.

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