JP2020001454A - Notification device - Google Patents

Abstract

To provide a notification device which can notify information in a manner that a driver can easily perceive.SOLUTION: A vehicular notification device 100 includes: window glass 110 attached to a vehicle; notification means which includes a light source 120 and causes the light source 120 to emit light to illuminate at least a part of a peripheral edge part 11 of the window glass 110 and thereby notify information; control means 130 which controls light emission operation of the light source 120.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a notification device.

  In recent years, in order to realize safe driving, many sensing devices are mounted on vehicles, and a lot of information is detected. Examples of the sensing device include a radar, a visible light camera, an ultrasonic detector, and LiDAR (light detection and ranging). LiDAR can use light to detect the distance to objects around the vehicle.

  Further, in the vehicle, a speaker, a head up display (HUD), or the like is used as a device for notifying a driver of a detection result of the sensing device.

JP-A-2006-184721

  However, in the notification using the speaker, the driver may not be able to immediately recognize the voice when music is played in the vehicle or when a conversation is playing. Further, if the volume of the speaker is too high, the driver may be surprised if the inside of the vehicle is quiet. Furthermore, in the notification using the HUD, the driver needs to read the contents displayed on the HUD, and may not be able to respond immediately. In addition, since the driver immediately moves his / her eyes to the HUD, there is a possibility that the safety in the traveling direction becomes insufficient.

  An object of the present invention is to provide a notification device that can notify a driver of information so that the driver can easily recognize the information.

  According to one embodiment of the disclosure, a notifying unit that includes a window glass attached to a vehicle, a light source, emits light to the light source, and notifies at least a part of a periphery of the window glass to emit light, and a light emitting operation of the light source And a control means for controlling the control of the vehicle.

  According to the disclosed technology, information can be notified to a driver so that the driver can easily recognize the information.

It is a figure showing the notification device concerning a 1st embodiment. FIG. 3 is a diagram illustrating a positional relationship between a windshield and a light emitter included in the notification device according to the first embodiment. It is a figure showing the 1st example of the notice in a windshield. It is a figure showing the 2nd example of the notice in a windshield. It is a figure showing the 3rd example of the notice in a windshield. It is a figure showing the 4th example of the notice in a windshield. It is a figure showing the 5th example of the notice in a windshield. It is a figure showing the 6th example of the notice in a windshield. It is a figure showing composition of a control device. 6 is a flowchart showing the contents of processing by the control device. It is a figure showing the modification of the 1st example of a notice. It is a figure showing the modification of the 2nd example of a notice. It is a figure showing the modification of the 3rd example of a notice. It is a figure showing the modification of the 6th example of a notice. It is a figure showing the physical relationship of the windshield and the luminous device which are contained in the notice device concerning a 2nd embodiment. FIG. 14 is a diagram illustrating a positional relationship between a windshield and a light emitter included in a notification device according to a third embodiment. It is a figure showing the physical relationship of the windshield and the light emitter included in the notice device concerning a 4th embodiment. It is a figure showing the physical relationship of the windshield and the light emitter included in the notice device concerning a 5th embodiment. It is a figure showing the physical relationship of the windshield and the light emitter included in the notice device concerning a 6th embodiment. It is a figure showing the physical relationship of the windshield and the light emitter included in the notice device concerning a 7th embodiment. It is a figure showing the physical relationship of the windshield and the light emitter included in the notice device concerning an 8th embodiment. It is a figure showing the physical relationship of the windshield and the luminous device included in the notice device concerning a 9th embodiment.

  Hereinafter, embodiments will be specifically described with reference to the accompanying drawings.

(1st Embodiment)
First, a first embodiment will be described. FIG. 1 is a diagram illustrating a notification device according to the first embodiment. FIG. 2 is a diagram illustrating a positional relationship between a windshield and a light emitter included in the notification device according to the first embodiment.

  As shown in FIG. 1, a notification device 100 according to the first embodiment includes a windshield 110, a light emitting device 120 that emits light at an edge 11 of the windshield 110, and a control device 130 that controls the operation of the light emitting device 120. And The light emitter 120 includes a plurality of types of light emitting diodes (LEDs) having different emission colors, and can emit a plurality of colors by a combination of LEDs that are turned on. For example, the windshield 110 is mounted on a window frame of a vehicle, and the light emitter 120 is disposed in the vehicle near the window frame. The windshield 110 is an example of a window glass attached to a vehicle. In addition, as the light emitting device 120, a known light emitting member other than the above can be used, and examples thereof include an organic electroluminescence light emitting diode (OLED). In the description of the other embodiments including the first embodiment, any of these can be used as the light emitter 120 unless otherwise specified.

  The edge 11 is not particularly limited as long as it is the periphery of the windshield 110, but is preferably within 10 cm from the end face, more preferably within 5 cm. The edge 11 is an example of a peripheral edge, and is a part of the windshield 110.

  In the first embodiment, as shown in FIG. 2, the light emitter 120 is arranged on the dashboard 160 so as to irradiate the windshield 110 with light 121. For example, a laminated glass including an inner glass plate 112 and an outer glass plate 113 and an intermediate film 116 interposed therebetween is used for the windshield 110, and the lower edge of the dashboard 160 side (lower side) is used. In the portion 11B, the light-shielding film 114 and the reflection film 115 are sandwiched between the inner glass plate 112 and the outer glass plate 113. The light-shielding film 114 is located outside the vehicle with respect to the reflection film 115. As the light-shielding film 114, for example, a black film or a black ceramic can be used. Black ceramic can be formed by ceramic printing. On the dashboard 160, a light shielding plate 161 that shields the light emitter 120 from the view of the driver 190 is provided.

  When the light emitter 120 emits light 121, a part of the light 121 is reflected by the inner glass plate 112 and another part is reflected by the reflection film 115, and the reflected light 122 is irradiated into the vehicle. Depending on the configuration of the reflective film 115, variations in the form of reflection can be provided. Further, even if a part of the light 121 tries to travel toward the driver 190, the light 121 does not reach the driver 190 because the light shielding plate 161 is provided. Therefore, the influence of the light 121 emitted from the light emitter 120 on the visual sense of the driver 190 can be suppressed, and the light emitter 120 can emit strong light.

  The driver 190 looks forward through the windshield 110 during driving of the vehicle. Even if the lower edge 11B emits light, the lower edge 11B that emits light from the field of view of the driver 190 is off, so that It does not obstruct the driver's 190 field of view and does not obstruct driving. In addition, the driver 190 can feel close to intuitive information about the color and mode of light emission of the lower edge portion 11B (lighting, blinking, etc.). Accordingly, the driver can intuitively recognize the information to be sensed and the degree of the information, specifically, the degree of danger and the like. For example, following the color of the traffic light, the driver 190 can intuitively recognize that green indicates a safe situation, yellow indicates a cautionary situation, and red indicates a danger approaching situation. Further, the light emission at the lower edge portion 11B does not cause the driver 190 to read characters, symbols, or symbols like a head up display (HUD), so that the driver 190 moves his / her gaze to a specific position. The situation can be easily grasped without being moved to a location.

  Even if a part of the light 121 passes through the reflective film 115, the light 121 does not leak out of the vehicle because the light-shielding film 114 is provided behind the reflective film 115. Therefore, it is possible to suppress the oncoming vehicle and surrounding pedestrians from feeling dazzling.

  Here, an example of notification by the notification device 100 will be described. 3 to 8 are diagrams illustrating examples of notification in the windshield 110.

  In the first example shown in FIG. 3, the positional relationship between the lane markings drawn on the road surface and the vehicle is notified. For example, the left part and the right part of the lower edge part 11B emit white light. Specifically, when the vehicle is traveling rightward in the lane, as shown in FIG. 3A, the right light emitting region 12R is smaller than the left light emitting region 12L, and the vehicle is in the lane. When the vehicle is traveling to the left, as shown in FIG. 3B, the right light emitting region 12R is wider than the left light emitting region 12L. By performing such light emission, the driver 190 can intuitively recognize whether the vehicle is on the right or on the left.

  It is preferable that the light emitting region 12R emit red light when the vehicle is extremely rightward, and that the light emitting region 12L emit red light when the vehicle is extremely leftward. This is for intuitively recognizing that the vehicle is crossing the lane.

  In the second example shown in FIG. 4, a side situation is notified. For example, when a succeeding vehicle such as a car or a bicycle is traveling on the left rear or the right rear, the light emitting area of the lower edge portion 11B on the side on which the subsequent vehicle is traveling emits red light, and the following vehicle The light emitting area on the side where the vehicle is not traveling emits green light. For example, when there is a following vehicle to the left and no following vehicle to the right, as shown in FIG. 4, the left light emitting region 12L emits red light and the right light emitting region 12R emits green light. By performing such light emission, the driver 190 can intuitively recognize the approach status of the following vehicle.

  Regarding the red light emission, it is preferable that the width of the light emitting area is changed according to the approach speed of the following vehicle and the distance to the following vehicle. Specifically, as the approach speed of the following vehicle increases, and as the distance from the following vehicle decreases, it is preferable that the light emitting region that emits red light is widened. If there is a following vehicle approaching, although the possibility of being involved is low, the light may be emitted in yellow.

  In the third example shown in FIG. 5, a situation in front is notified. For example, as shown in FIG. 5, the entire lower edge portion 11B emits red light as a light emitting area 12F according to a speed difference and a distance from a vehicle traveling ahead. Specifically, as the speed difference is smaller or the distance is longer, the light flashes red at longer intervals, and as the speed difference is larger, and as the distance is shorter, the light flashes red at shorter intervals. By performing such light emission, the driver 190 can intuitively recognize the approach status to the vehicle in front.

  In the fourth example shown in FIG. 6, the operation status of the air conditioner, the defroster, or the electric heating device such as ice melting or anti-fog is notified. For example, taking the case of notifying the operating condition of the air conditioner as an example, according to the difference between the set temperature and the vehicle interior temperature, as shown in FIG. The lower edge 11B emits light in red. Specifically, the light emitting region 12T expands from the left end of the lower edge portion 11B, and as shown in FIG. 6A, the light emitting region 12T becomes narrower as the temperature difference increases, and when the vehicle interior temperature matches the set temperature, As shown in (b), the light emitting area 12T reaches the right end. By performing such light emission, the driver 190 can intuitively recognize the operation condition of the air conditioner.

  In the fifth example shown in FIG. 7, in a vehicle having a driving assist function, it is notified that the driving assist function has been released. For example, as shown in FIG. 7, the entire lower edge 11B blinks in blue as a light emitting area 12A. By performing such light emission, the driver 190 can intuitively recognize that the driving assist function has been released.

  In the sixth example shown in FIG. 8, when the vehicle moves backward, the distances to the objects existing laterally and behind are notified. In addition, the actual distance can be visually displayed. For example, the emission range becomes narrower as the distance from the object increases, and the emission range increases as the distance from the object increases. Specifically, when there is an object such as a vehicle or a wall on the right rear and no object that may come into contact with the rear left, as shown in FIG. It emits light so that it changes from green to yellow and then red according to the distance from the camera. In addition, when there is an object that may come into contact with the entire rear, as shown in FIG. 8B, the entire lower edge portion 11B changes from green to yellow according to the distance from the object as the light emitting area 12B. Light is emitted so that the color changes to red.

  Next, the control device 130 will be described. The control device 130 controls the operation of the light emitter 120 in accordance with signals from various sensing devices mounted on the vehicle by the processing described below, and realizes, for example, light emission in the examples illustrated in FIGS. 3 to 8. . Sensing devices include, for example, LiDAR, radar, visible cameras, and ultrasonic detectors. For example, the control device 130 is a semiconductor chip and is housed in the dashboard 160. FIG. 9 is a diagram illustrating a configuration of the control device 130.

  The control device 130 includes a central processing unit (CPU) 131, a read only memory (ROM) 132, a random access memory (RAM) 133, and an auxiliary storage unit 134. The CPU 131, the ROM 132, the RAM 133, and the auxiliary storage unit 134 constitute a so-called computer. Each part of the control device 130 is mutually connected via a bus 135.

  The CPU 131 executes various programs (for example, a light emission control program) stored in the auxiliary storage unit 134.

  The ROM 132 is a nonvolatile main storage device. The ROM 132 stores various programs, data, and the like necessary for the CPU 131 to execute various programs stored in the auxiliary storage unit 134. Specifically, the ROM 132 stores a boot program such as a basic input / output system (BIOS) and an extensible firmware interface (EFI), data indicating a light emission pattern of the light emitter 120, and the like.

  The RAM 133 is a volatile main storage device such as a dynamic random access memory (DRAM) or a static random access memory (SRAM). The RAM 133 functions as a work area that is developed when various programs stored in the auxiliary storage unit 134 are executed by the CPU 131.

  The auxiliary storage unit 134 is an auxiliary storage device that stores various programs executed by the CPU 131 and various data generated by the CPU 131 executing the various programs.

  The control device 130 has such a hardware configuration and performs the following processing. FIG. 10 is a flowchart showing the content of the processing by the control device 130.

  First, when a signal is input from a sensing device (step S1), the control device 130 specifies what kind of signal from which sensing device the signal is from (step S2). Next, data indicating a light emission pattern corresponding to the specified signal is read (step S3), and the light emitter 120 is controlled based on the data (step S4). For example, the light emitting device 120 is controlled so that any of the examples shown in FIGS.

  According to the notification device 100 according to the first embodiment, the notification based on the detection result by the sensing device is performed based on a change in color, a change in the size of the light emitting area, and the like. Therefore, the driver 190 can intuitively recognize the content of the notification without reading characters, symbols, and the like. The lower edge 11B of the windshield 110 is used for this notification. Since the driver's line of sight during driving is in front of the windshield 110, this notification instantly enters the driver's 190 field of view within a range that does not hinder driving. Furthermore, although voices may be affected by noise or the like, the use of light enables the driver 190 to be notified with an appropriate stimulus regardless of daytime or nighttime.

  Although the first embodiment has a configuration in which only the lower edge 11B among the edges of the windshield 110 emits light, both sides and the upper side of the edge may emit light.

  For example, in the first example, a right right edge and a left left edge may be used. That is, when the vehicle is traveling rightward in the lane, the right edge 11R emits light narrower than the left edge 11L as shown in FIG. 11A, and the vehicle travels leftward in the lane. 11B, the right edge 11R may emit light wider than the left edge 11L as shown in FIG. 11B. Also in this case, it is preferable that when the vehicle is extremely rightward, the right edge portion 11R emits red light, and when the vehicle is extremely leftward, the light emitting region 12L emits red light.

  Further, for example, in the second example, the right edge and the left edge may be used. That is, when there is a following vehicle to the left and no following vehicle to the right, as shown in FIG. 12, the left edge 11L may emit red light and the right edge 11R may emit green light. Also in this case, it is preferable that the light emitting region that emits red light is made wider as the approach speed of the following vehicle is higher and as the distance from the succeeding vehicle is shorter.

  Further, for example, in the third example, the right edge and the left edge may be used. That is, as shown in FIG. 13, not only the lower edge 11B but also the right edge 11R and the left edge 11L may emit red light according to the speed difference and the distance from the vehicle traveling ahead.

  Further, for example, in the sixth example, when the vehicle moves backward, the right edge and the left edge may be used. That is, when there is an object at the rear right and there is no object that may come into contact with the rear left, as shown in FIG. 14A, the right edge 11R changes from green to yellow according to the distance from the object. Alternatively, the light may be emitted so as to change to red via. In addition, when there is an object that may come into contact with the entire rear, as shown in FIG. 14B, the lower edge 11B, the right edge 11R, and the left edge 11L are all at a distance from the object. The light may be emitted so that the color changes from green to yellow and then red. When moving backward, the driver 190 turns his / her eyes to the rear of the vehicle instead of the front of the windshield 110, so that the light emission at the right edge 11R and the left edge 11L is particularly preferable. Further, similar light emission may be performed not only at the windshield 110 but also at the edge of the rear window.

(Second embodiment)
Next, a second embodiment will be described. FIG. 15 is a diagram illustrating a positional relationship between a windshield and a light emitter included in the notification device according to the second embodiment.

  In the notification device 200 according to the second embodiment, as shown in FIG. 15, the light emitter 120 is arranged on the dashboard 160 so as to irradiate the windshield 110 with light 121. For example, a laminated glass that includes the inner glass plate 112, the outer glass plate 113, and the intermediate film 116 and does not include the light-shielding film 114 and the reflective film 115 is used for the windshield 110, and the inner glass plate 112 is formed at the lower edge 11B. The light shielding film 214 is provided on the surface of the. As the light-shielding film 214, for example, a black film or a black ceramic can be used. Further, a black film or black ceramic containing a component that enhances reflection toward the inside of the vehicle may be used. Other configurations are the same as those of the first embodiment.

  The same effect as the notification device 100 can be obtained by the notification device 200 configured as described above.

(Third embodiment)
Next, a third embodiment will be described. FIG. 16 is a diagram illustrating a positional relationship between a windshield and a light emitter included in the notification device according to the third embodiment.

  In the notification device 300 according to the third embodiment, as shown in FIG. 16, a diffusion film 315 is provided on a surface of a light shielding film 214. Other configurations are the same as in the second embodiment.

  The same effect as the notification device 200 can be obtained by the notification device 300 configured as described above. Further, according to notification device 300, since diffusion film 315 is provided, light 322 having high intensity uniformity is emitted from diffusion film 315. Therefore, the light stimulus received by the driver 190 can be reduced.

(Fourth embodiment)
Next, a fourth embodiment will be described. FIG. 17 is a diagram illustrating a positional relationship between a windshield and a light emitter included in the notification device according to the fourth embodiment.

  In the notification device 400 according to the fourth embodiment, as shown in FIG. 17, a light-shielding film 114 and a light-emitting device as a light source are provided between an inner glass plate 112 and an outer glass plate 113 at a lower edge 11B of a windshield 110. 120 is sandwiched. It is preferable that the light-shielding film 114 is located outside the vehicle than the light emitter 120. Further, it is preferable that a diffusion film 315 is provided on the surface of the inner glass plate 112. In the fourth embodiment, it is not necessary to provide the light emitter 120 and the light shielding plate 161 on the dashboard 160. Further, other configurations are the same as those of the first embodiment.

  The same effect as the notification device 100 can be obtained by the notification device 400 configured as described above. Further, according to the notification device 400, since the light emitter 120 and the light shielding plate 161 on the dashboard 160 are not required, the configuration on the dashboard 160 can be simplified as compared with the first embodiment. Further, similarly to the third embodiment, by providing the diffusion film 315, light 322 having high uniformity of intensity can be emitted, and light stimulation received by the driver 190 can be reduced.

  As the light emitter 120 sandwiched between the inner glass plate 112 and the outer glass plate 113, an LED or an OLED can be suitably used.

(Fifth embodiment)
Next, a fifth embodiment will be described. FIG. 18 is a diagram illustrating a positional relationship between a windshield and a light emitter included in the notification device according to the fifth embodiment.

  As shown in FIG. 18, the notification device 500 according to the fifth embodiment has the same configuration as that of the first embodiment except that the reflection film 115 is not provided.

  The same effect as the notification device 100 can be obtained by the notification device 500 configured as described above. In addition, the light-shielding film 114 may be provided on the outer surface of the inner glass plate 112 instead of the inner surface of the outer glass plate 113. Further, a diffusion film may be provided inside the vehicle of the light shielding film 114.

(Sixth embodiment)
Next, a sixth embodiment will be described. FIG. 19 is a diagram illustrating a positional relationship between a windshield and a light emitter included in the notification device according to the sixth embodiment.

  In the notification device 600 according to the sixth embodiment, as shown in FIG. 19, a half mirror 618 is provided on a surface inside the vehicle of the outer glass plate 113, and a half mirror 619 is provided on a surface inside the vehicle of the inner glass plate 112. Provided. No reflective film 115 is provided. Other configurations are the same as those of the first embodiment.

  In the notification device 600 configured as described above, the light 623 is reflected between the half mirror 618 and the half mirror 619, and the light 622 transmitted through the half mirror 619 is emitted into the vehicle.

  The same effect as the notification device 100 can be obtained by the notification device 600 configured as described above. Further, since the half mirrors 618 and 619 are provided, it is possible to perform a notification giving a sense of distance by multiple reflection.

(Seventh embodiment)
Next, a seventh embodiment will be described. FIG. 20 is a diagram illustrating a positional relationship between a windshield and a light emitter included in the notification device according to the seventh embodiment.

  In the notification device 700 according to the seventh embodiment, the light emitter 120 is arranged around the windshield 110. In the seventh embodiment, when the light emitted from the light emitter 120 is directly incident on the windshield 110 or the diffusion member from the side surface, and when the light emitted from the light emitter 120 is transmitted through the light guide member to the windshield 110. Alternatively, the light may be incident on the diffusion material. Therefore, the meaning of the periphery of the windshield 110 means a position close to the windshield 110, and refers to both the vertical direction and the horizontal direction with respect to the windshield 110, and the light of the light emitter 120 is described above. Means a state where light can enter. That is, the periphery of the windshield 110 is outside the windshield 110.

  As shown in FIG. 20, the light emitter 120 is disposed in the dashboard 160, and a light guide fiber 720 that optically connects the light emitter 120 and the diffusion film 315 is provided. Other configurations are the same as those of the third embodiment.

  In the seventh embodiment, the diffusion film 315 is arranged on the surface of the inner glass plate 112. However, as another mode, the surface of the inner glass plate 112 is coated with the same surface properties as the diffusion film 315. Alternatively, surface irregularities may be formed.

  The same effect as the notification device 300 can be obtained by the notification device 700 configured as described above. Further, since the light emitter 120 is disposed in the dashboard 160, the configuration on the dashboard 160 can be simplified as compared with the third embodiment.

(Eighth embodiment)
Next, an eighth embodiment will be described. FIG. 21 is a diagram illustrating a positional relationship between a windshield and a light emitter included in the notification device according to the eighth embodiment.

  In the notification device 800 according to the eighth embodiment, as shown in FIG. 21, a wavelength conversion film 815 as a wavelength conversion member is provided. When the wavelength conversion film 815 absorbs the light 121 emitted from the light emitter 120, it emits light 822 of another wavelength toward the inside of the vehicle. Other configurations are the same as those of the first embodiment. It is preferable that the wavelength conversion film 815 is disposed so as to overlap with the light shielding film 114 on the vehicle inner surface side with respect to the light shielding film 114 as shown in FIG. This prevents the light 121 emitted to the wavelength conversion film from leaking to the outside. Furthermore, the wavelength conversion film 815 is inconspicuous even when the window glass outside the vehicle is visually recognized, and the design is excellent.

  The same effect as the notification device 100 can be obtained by the notification device 800 configured as described above.

(Ninth embodiment)
Next, a ninth embodiment will be described. FIG. 22 is a diagram illustrating a positional relationship between a windshield and a light emitter included in the notification device according to the ninth embodiment.

  In the notification device 900 according to the ninth embodiment, as shown in FIG. 22, the light emitter 120 is arranged to irradiate the inside of the vehicle with the light 121, and preferably on the path of the light 121 to the driver 190, A diffusion plate 915 is provided near the light emitter 120. Other configurations are the same as in the second embodiment.

  The same effect as the notification device 200 can be obtained by the notification device 900 configured as described above. In addition, since the diffusion plate 915 is provided, light 922 having high intensity uniformity is emitted from the diffusion plate 915, and light stimulation received by the driver 190 can be reduced. The configuration of the diffusion plate 915 can provide a variety of appearance. A light guide plate may be used instead of the diffusion plate 915.

  In any of the embodiments, even when the light emitted from the LED included in the light emitting device 120 is monochromatic, the driver 190 can be notified so that specific information can be easily recognized. Further, the light source of the light emitter 120 is not limited to the LED, but may be a light bulb or the like.

  As described above, the preferred embodiments and the like have been described in detail. However, the present invention is not limited to the above-described embodiments and the like, and various modifications may be made to the above-described embodiments and the like without departing from the scope described in the claims. Variations and substitutions can be made.

11 edge 11B lower edge 11L left edge 11R right edge 100, 200, 300, 400, 500, 600, 700, 800, 900 notification device 110 windshield 114, 214 light shielding film 115 reflection film 120 light emitter 130 control Device 315 Diffusion film 618, 619 Half mirror 720 Light guide fiber 815 Wavelength conversion film 915 Diffusion plate

Claims (13)

A window glass attached to the vehicle,
Including a light source, notifying means for notifying by illuminating at least a part of the periphery of the window glass by causing the light source to emit light,
Control means for controlling the light emitting operation of the light source,
A notification device for a vehicle, comprising:   The notification device according to claim 1, wherein the control unit controls a light-emitting operation of the light source of the notification unit according to a situation in which a set condition is satisfied and a driver should be notified. The light source is disposed to face the window glass,
The window glass has a reflecting member that reflects light emitted by the light source to the inside of the vehicle,
The notification device according to claim 1, wherein the reflection member is disposed on at least a part of a periphery of the window glass.   4. The notification device according to claim 3, wherein the window glass includes a light blocking member that is disposed outside the vehicle with respect to the reflection member so as to overlap the reflection member. 5.   The notification device according to claim 4, wherein the reflection member and the light blocking member are integrated. The window glass has two glass plates and an intermediate film sandwiched between the two glass plates,
The notification device according to claim 1, wherein the light source is disposed between the two glass plates. The light source is disposed around the window glass,
The notification device according to claim 1, further comprising a diffusion member disposed on a vehicle inner side of the window glass. The light source is disposed to face the window glass,
The notification device according to claim 1, further comprising a wavelength conversion member provided on at least a part of the peripheral portion and configured to convert a wavelength of light emitted by the light source.   9. The notification device according to claim 1, wherein the control unit controls an operation of the light source based on a positional relationship between the vehicle and a lane marking drawn on a road. 10.   The notification device according to any one of claims 1 to 9, wherein the control unit controls an operation of the light source based on a speed difference and a distance between the vehicle and a vehicle traveling ahead of the vehicle.   The notification device according to any one of claims 1 to 10, wherein the control unit controls an operation of the light source based on a speed difference and a distance between the vehicle and a vehicle running laterally of the vehicle.   The notification device according to any one of claims 1 to 11, wherein the control unit controls an operation of the light source based on a distance from an object located around the vehicle when the vehicle moves backward. .   The notification device according to claim 1, wherein the control unit controls an operation of the light source based on an operation state of an electric heating device in the vehicle.

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