JP7658387B2 - Notification Device - Google Patents

Description

The present invention relates to a notification device.

In recent years, in order to realize safe driving, many sensing devices are being installed in vehicles to detect a large amount of information. Examples of sensing devices include radar, visible light cameras, ultrasonic detectors, and LiDAR (light detection and ranging). LiDAR can detect the distance to objects around the vehicle using light.

In addition, vehicles use devices such as speakers and head-up displays (HUDs) to notify the driver of the results of detection by these sensing devices.

JP 2016-184721 A

However, when notifications are sent through speakers, there is a possibility that the driver may not be able to immediately recognize the sound if music is playing in the car or if there is lively conversation. Also, if the volume emitted by the speakers is too loud, it may startle the driver if the inside of the car is quiet. Furthermore, when notifications are sent through the HUD, the driver must read the contents displayed on the HUD, and may not be able to respond immediately. Also, the driver must immediately turn their eyes to the HUD, which may result in insufficient safety in the direction of travel.

The object of the present invention is to provide a notification device that can notify the driver of information in a manner that is easy for the driver to recognize.

According to one aspect of the disclosure, a notification device for a vehicle is provided, the notification device comprising: a window glass to be attached to a vehicle; notification means including a light source and emitting light from the light source to illuminate at least a portion of the periphery of the window glass to provide notification; and control means for controlling the light emission operation of the light source, the control means changing the size of a light-emitting area of the window glass illuminated by the light source, the light-emitting area having a first area located on the right edge of the window glass as viewed from inside the vehicle, and a second area located on the left edge of the window glass as viewed from inside the vehicle.

The disclosed technology makes it possible to notify the driver of information in a way that is easy for them to recognize.

1 is a diagram illustrating a notification device according to a first embodiment. 3 is a diagram showing the positional relationship between a windshield and a light emitter included in the notification device according to the first embodiment. FIG. FIG. 13 shows a first example of a notification on the windshield. FIG. 13 shows a second example of a notification on the windshield. FIG. 13 is a diagram showing a third example of a notification on the windshield. FIG. 13 is a diagram showing a fourth example of a notification on the windshield. FIG. 5 is a diagram showing a fifth example of a notification on the windshield. FIG. 13 is a diagram showing a sixth example of a notification on the windshield. FIG. 2 is a diagram illustrating a configuration of a control device. 4 is a flowchart showing the contents of processing by the control device. FIG. 13 is a diagram showing a modified example of the first example of the notification. FIG. 13 is a diagram showing a modified example of the second example of the notification. FIG. 13 is a diagram showing a modified example of the third example of the notification. FIG. 13 is a diagram showing a modified example of the sixth example of the notification. 13 is a diagram showing the positional relationship between a windshield and a light emitter included in a notification device according to a second embodiment. FIG. 13 is a diagram showing the positional relationship between a windshield and a light emitter included in a notification device according to a third embodiment. FIG. 13 is a diagram showing the positional relationship between a windshield and a light emitter included in a notification device according to a fourth embodiment. FIG. 13 is a diagram showing the positional relationship between a windshield and a light emitter included in a notification device according to a fifth embodiment. FIG. 13 is a diagram showing the positional relationship between a windshield and a light emitter included in a notification device according to a sixth embodiment. FIG. 13 is a diagram showing the positional relationship between a windshield and a light emitter included in a notification device according to a seventh embodiment. FIG. 13 is a diagram showing the positional relationship between a windshield and a light emitter included in a notification device according to an eighth embodiment. FIG. A diagram showing the positional relationship between a windshield and a light emitter included in a notification device according to a ninth embodiment.

The following describes the embodiment in detail with reference to the attached drawings.

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

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

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, and more preferably within 5 cm. The edge 11 is an example of the periphery, and is 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, the windshield 110 is made of laminated glass including an inner glass plate 112, an outer glass plate 113, and an intermediate film 116 sandwiched between them, and a light-shielding film 114 and a reflective film 115 are sandwiched between the inner glass plate 112 and the outer glass plate 113 at the lower edge 11B on the dashboard 160 side (lower side). The light-shielding film 114 is located on the outer side of the vehicle than the reflective film 115. For example, a black film or black ceramic can be used as the light-shielding film 114. The black ceramic can be formed by ceramic printing. A light-shielding plate 161 that blocks the light emitter 120 from the driver's field of vision is provided on the dashboard 160.

When the light emitter 120 emits light 121, part of this light 121 is reflected by the inner glass plate 112, and the other part is reflected by the reflective film 115, and the reflected light 122 is irradiated into the vehicle. The shape of the reflection can be varied depending on the configuration of the reflective film 115. Furthermore, even if part of the light 121 attempts to travel towards the driver 190, it does not reach the driver 190 because the light shielding plate 161 is provided. Therefore, the effect of the light 121 emitted by the light emitter 120 on the vision of the driver 190 can be suppressed, and the light emitter 120 can emit a strong light.

While driving the vehicle, the driver 190 looks ahead through the windshield 110, and even if the lower edge portion 11B emits light, the emitting lower edge portion 11B is out of the driver's field of vision, so it does not obstruct the driver's field of vision and does not interfere with driving. In addition, the driver 190 can feel intuitive information such as the color and state of the light emitted by the lower edge portion 11B (lighting up, blinking, etc.), so the driver 190 can intuitively recognize the information that the driver should sense and its level, specifically the degree of danger, etc., according to the color and state of the light emitted. For example, following the colors of traffic lights, the driver 190 can intuitively recognize that green indicates a safe situation, yellow indicates a situation requiring caution, and red indicates a situation where danger is imminent. Furthermore, the light emitted by the lower edge portion 11B does not allow the driver 190 to read letters, symbols, or symbols like a head up display (HUD), so the driver 190 can easily grasp the situation without moving his or her gaze to a specific position.

Even if some of the light 121 passes through the reflective film 115, it does not leak out of the vehicle because the light-shielding film 114 is installed behind it. This makes it possible to prevent oncoming vehicles and surrounding pedestrians from feeling dazzled.

Here, we will explain examples of notifications by the notification device 100. Figures 3 to 8 are diagrams showing examples of notifications on the windshield 110.

In the first example shown in FIG. 3, the positional relationship between the vehicle and the lane markings drawn on the road surface is notified. For example, a part of the left side and a part of the right side of the lower edge 11B emit white light. Specifically, when the vehicle is traveling on the right side of the lane, the right side light-emitting area 12R is narrower than the left side light-emitting area 12L, as shown in FIG. 3(a), and when the vehicle is traveling on the left side of the lane, the right side light-emitting area 12R is wider than the left side light-emitting area 12L, as shown in FIG. 3(b). This illumination allows the driver 190 to intuitively recognize whether the vehicle is traveling on the right side or the left side.

When the vehicle veers too far to the right, it is preferable that the light-emitting area 12R emits red light, and when the vehicle veers too far to the left, the light-emitting area 12L emits red light. This is to allow the driver to intuitively recognize that they are crossing a lane.

In the second example shown in FIG. 4, the situation on the side is notified. For example, if a following vehicle such as a car or bicycle is traveling to the left or right rear, the light-emitting area of the lower edge 11B on the side where the following vehicle is traveling emits red light, and the light-emitting area on the side where no following vehicle is traveling emits green light. For example, if there is a following vehicle on the left and no following vehicle on the right, as shown in FIG. 4, the light-emitting area 12L on the left side emits red light, and the light-emitting area 12R on the right side emits green light. By emitting light in this way, the driver 190 can intuitively recognize the approaching situation of the following vehicle.

For red illumination, it is preferable to vary the size of the illumination area depending on the approaching speed of the following vehicle and the distance to the following vehicle. Specifically, it is preferable to make the illumination area that emits red light wider the faster the approaching speed of the following vehicle and the shorter the distance to the following vehicle. Also, if there is a following vehicle approaching but the possibility of being hit is low, yellow light may be emitted.

In the third example shown in FIG. 5, the situation ahead is notified. For example, as shown in FIG. 5, depending on the speed difference and distance with the vehicle traveling ahead, the entire lower edge 11B emits red light as the light-emitting area 12F. Specifically, the smaller the speed difference and the longer the distance, the longer the interval at which the red light flashes, and the larger the speed difference and the shorter the distance, the shorter the interval at which the red light flashes. This type of illumination allows the driver 190 to intuitively recognize the approaching situation of the vehicle ahead.

In the fourth example shown in FIG. 6, the operating status of an air conditioner, a defroster, or an electric heating device such as ice melting or defogging is notified. For example, in the case of notifying the operating status of an air conditioner, the lower edge 11B emits light in blue when cooling and in red when heating according to the difference between the set temperature and the temperature inside the vehicle, as shown in FIG. 6. Specifically, the light-emitting region 12T expands from the left end of the lower edge 11B, and as shown in FIG. 6(a), the light-emitting region 12T becomes narrower as the temperature difference increases, and when the temperature inside the vehicle matches the set temperature, the light-emitting region 12T reaches the right end, as shown in FIG. 6(b). This light emission allows the driver 190 to intuitively recognize the operating status of the air conditioner.

In the fifth example shown in FIG. 7, in a vehicle equipped with a driving assist function, a notification is given that the driving assist function has been deactivated. For example, as shown in FIG. 7, the entire lower edge portion 11B flashes blue as the light-emitting area 12A. This illumination allows the driver 190 to intuitively recognize that the driving assist function has been deactivated.

In the sixth example shown in FIG. 8, when the vehicle moves backward, the distance to objects present to the side and rear is notified. The actual distance can also be visually displayed. For example, the light emission range becomes narrower the further away from the object, and the light emission range becomes wider the closer to the object. Specifically, when there is an object such as a vehicle or wall to the right rear and there is no object that may come into contact with the left rear, as shown in FIG. 8(a), the light emission area 12R on the right side emits light that changes from green to yellow to red depending on the distance from the object. Also, when there is an object that may come into contact with the entire rear, as shown in FIG. 8(b), the entire lower edge 11B emits light as the light emission area 12B that changes from green to yellow to red depending on the distance from the object.

Next, the control device 130 will be described. The control device 130 controls the operation of the light emitter 120 in response to signals from various sensing devices equipped in the vehicle through the process described below, and realizes the light emission shown in the examples of Figures 3 to 8, for example. Examples of sensing devices include LiDAR, radar, visible cameras, and ultrasonic detectors. For example, the control device 130 is a semiconductor chip, and is housed in the dashboard 160. Figure 9 is a diagram showing the configuration of the control device 130.

The control device 130 includes a CPU (central processing unit) 131, a ROM (read only memory) 132, a RAM (random access memory) 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. The various parts of the control device 130 are connected to each other via a bus 135.

The CPU 131 executes various programs (e.g., a light emission control program) stored in the auxiliary memory unit 134.

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

RAM 133 is a volatile main memory device such as a dynamic random access memory (DRAM) or a static random access memory (SRAM). RAM 133 functions as a working area in which various programs stored in auxiliary memory unit 134 are expanded when executed by CPU 131.

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

The control device 130 has such a hardware configuration and performs the following processes. Figure 10 is a flowchart showing the process performed by the control device 130.

First, when a signal is input from a sensing device (step S1), the control device 130 identifies which sensing device the signal is from and what type of signal it is (step S2). Next, data indicating the light emission pattern corresponding to the identified signal is read out (step S3), and the light emitter 120 is controlled based on the data (step S4). For example, the control device 120 is controlled so that any of the examples shown in Figures 3 to 8 is realized.

According to the notification device 100 of the first embodiment, notifications based on the detection results by the sensing device are made based on changes in color and the size of the light-emitting area. Therefore, the driver 190 can intuitively recognize the contents of the notification without reading letters, symbols, etc. In addition, the lower edge 11B of the windshield 110 is used for this notification. Since the driver 190's line of sight while driving is in front of the windshield 110, this notification instantly enters the field of vision of the driver 190 without interfering with driving. Furthermore, while audio may be affected by noise, etc., by using light, the driver 190 can be notified with an appropriate stimulation regardless of whether it is daytime or nighttime.

In the first embodiment, only the lower edge 11B of the windshield 110 emits light, but both sides and the top of the edge may also emit light.

For example, in the first example, the right edge on the right side and the left edge on the left side may be used. That is, when the vehicle is traveling on the right side of the lane, the right edge 11R may emit light more narrowly than the left edge 11L as shown in FIG. 11(a), and when the vehicle is traveling on the left side of the lane, the right edge 11R may emit light more broadly than the left edge 11L as shown in FIG. 11(b). In this case as well, it is preferable that when the vehicle is extremely to the right, the right edge 11R emits red light, and when the vehicle is extremely to the left, the light-emitting area 12L emits red light.

Also, for example, in the second example, the right edge and the left edge may be used. That is, when there is a following vehicle on the left and no following vehicle on the right, as shown in FIG. 12, the left edge 11L may emit red light and the right edge 11R may emit green light. In this case, too, it is preferable to widen the illumination area that emits red light the faster the approaching speed of the following vehicle and the shorter the distance to the following vehicle.

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

For example, in the sixth example, the right and left edges may be used when the vehicle moves backward. That is, when there is an object on the right rear and no object on the left rear that may come into contact, the right edge 11R may emit light so that the color changes from green to yellow to red depending on the distance from the object, as shown in FIG. 14(a). When there is an object that may come into contact over the entire rear, the lower edge 11B, the right edge 11R, and the left edge 11L may emit light so that the color changes from green to yellow to red depending on the distance from the object, as shown in FIG. 14(b). When moving backward, the driver 190 looks toward the rear of the vehicle, not toward the front of the windshield 110, so it is particularly preferable to emit light from the right edge 11R and the left edge 11L. Also, similar light emission may be performed not only on the windshield 110 but also on the edge of the rear window.

Second Embodiment
Next, a second embodiment will be described. Fig. 15 is a diagram showing the positional relationship between a windshield and light emitters included in a 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 light 121 to the windshield 110. For example, the windshield 110 is made of laminated glass including an inner glass sheet 112, an outer glass sheet 113, and an intermediate film 116, but not including a light-shielding film 114 or a reflective film 115, and a light-shielding film 214 is provided on the surface of the inner glass sheet 112 at the lower edge portion 11B. For example, a black film or black ceramic can be used as the light-shielding film 214. A black film or black ceramic containing a component that enhances reflection to the inside of the vehicle may also be used. The other configurations are the same as those of the first embodiment.

The notification device 200 configured in this manner can achieve the same effects as the notification device 100.

Third Embodiment
Next, a third embodiment will be described. Fig. 16 is a diagram showing the positional relationship between a windshield and light emitters included in a 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 the surface of the light-shielding film 214. The other configurations are the same as those of the second embodiment.

The notification device 300 configured in this manner can achieve the same effect as the notification device 200. Furthermore, according to the notification device 300, since the diffusion film 315 is provided, light 322 with high uniformity of intensity is emitted from the diffusion film 315. Therefore, the light stimulus received by the driver 190 can be mitigated.

(Fourth embodiment)
Next, a fourth embodiment will be described. Fig. 17 is a diagram showing the positional relationship between a windshield and light emitters included in a 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 emitter 120 serving as a light source are sandwiched between an inner glass plate 112 and an outer glass plate 113 at the lower edge 11B of the windshield 110. The light-shielding film 114 is preferably located on the outer side of the vehicle than the light emitter 120. Also, a diffusion film 315 is preferably 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. Furthermore, the other configurations are the same as those of the first embodiment.

The notification device 400 configured in this manner can achieve the same effect as the notification device 100. Furthermore, the notification device 400 does not require the light emitter 120 and the light shielding plate 161 on the dashboard 160, so the configuration on the dashboard 160 can be simplified compared to the first embodiment. Furthermore, as in the third embodiment, by providing a diffusion film 315, it is possible to emit light 322 with high uniformity of intensity, and to reduce the light irritation experienced by the driver 190.

LEDs and OLEDs can be suitably used as the light emitters 120 sandwiched between the inner glass plate 112 and the outer glass plate 113.

Fifth Embodiment
Next, a fifth embodiment will be described. Fig. 18 is a diagram showing the positional relationship between a windshield and light emitters included in a 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 the first embodiment, except that the reflective film 115 is not provided.

The notification device 500 configured in this manner can achieve the same effect as the notification device 100. The light-shielding film 114 may be provided on the vehicle outer surface of the inner glass plate 112, instead of on the vehicle inner surface of the outer glass plate 113. A diffusion film may also be provided on the vehicle inner surface of the light-shielding film 114.

Sixth Embodiment
Next, a sixth embodiment will be described. Fig. 19 is a diagram showing the positional relationship between a windshield and light emitters included in a notification device according to the sixth embodiment.

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

In the notification device 600 configured in this manner, light 623 is reflected between the half mirror 618 and the half mirror 619, and light 622 that passes through the half mirror 619 is irradiated inside the vehicle.

The notification device 600 configured in this way can achieve the same effect as the notification device 100. In addition, because half mirrors 618 and 619 are provided, multiple reflections can be used to give a sense of distance to the notification.

Seventh Embodiment
Next, a seventh embodiment will be described. Fig. 20 is a diagram showing the positional relationship between a windshield and light emitters included in a notification device according to the seventh embodiment.

In the notification device 700 according to the seventh embodiment, the light emitter 120 is disposed around the windshield 110. In the seventh embodiment, the light emitted from the light emitter 120 may be directly incident on the windshield 110 or the diffusing material from its side, or the light emitted from the light emitter 120 may be incident on the windshield 110 or the diffusing material via a light-guiding member. Therefore, the meaning of "around the windshield 110" refers to a position close to the windshield 110, both in the vertical and horizontal directions relative to the windshield 110, and refers to a state in which the light from the light emitter 120 can be incident in the manner described above. In other words, the periphery of the windshield 110 is the outside of the windshield 110.

As shown in FIG. 20, the light emitter 120 is disposed in the dashboard 160, and an optical fiber 720 is provided to optically connect the light emitter 120 to the diffusion film 315. The other configurations are the same as those of the third embodiment.

In the seventh embodiment, the diffusion film 315 is disposed on the surface of the inner glass plate 112, but in other embodiments, the surface of the inner glass plate 112 may be provided with a coating having the same surface properties as the diffusion film 315, or surface irregularities may be formed.

The notification device 700 configured in this manner can achieve the same effect as the notification device 300. In addition, since the light emitter 120 is disposed within the dashboard 160, the configuration on the dashboard 160 can be simplified compared to the third embodiment.

Eighth embodiment
Next, an eighth embodiment will be described. Fig. 21 is a diagram showing the positional relationship between a windshield and light emitters included in a 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 is provided as a wavelength conversion member. When the wavelength conversion film 815 absorbs the light 121 emitted from the light emitter 120, it irradiates light 822 of another wavelength toward the inside of the vehicle. The other configurations are the same as those of the first embodiment. As shown in FIG. 21, the wavelength conversion film 815 is preferably disposed on the vehicle interior side of the light shielding film 114 so as to overlap the light shielding film 114. This prevents the light 121 emitted toward the wavelength conversion film from leaking to the outside. Furthermore, even when the exterior window glass is visually checked, the wavelength conversion film 815 is not noticeable, and has excellent design.

The notification device 800 configured in this manner can achieve the same effects as the notification device 100.

Ninth embodiment
Next, a ninth embodiment will be described. Fig. 22 is a diagram showing the positional relationship between a windshield and light emitters included in a 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 light 121 toward the inside of the vehicle, and a diffuser 915 is provided on the path of the light 121 to the driver 190, preferably near the light emitter 120. The other configurations are the same as those of the second embodiment.

The notification device 900 configured in this manner can achieve the same effect as the notification device 200. In addition, since the diffuser plate 915 is provided, light 922 with high uniformity in intensity is emitted from the diffuser plate 915, and the light stimulus received by the driver 190 can be reduced. In addition, the configuration of the diffuser plate 915 can provide a variety of appearances. A light guide plate may be used instead of the diffuser plate 915.

In any embodiment, even if the light emitted by the LED included in the light emitter 120 is monochromatic, specific information can be notified to the driver 190 in a manner that makes it easy to recognize. In addition, the light source of the light emitter 120 is not limited to an LED, and may be a light bulb or the like.

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

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 Reflective film 120 Light emitter 130 Control device 315 Diffusion film 618, 619 Half mirror 720 Optical fiber 815 Wavelength conversion film 915 Diffusion plate

Claims (10)

A window glass to be attached to a vehicle;
A notification means includes a light source and notifies by illuminating at least a part of the peripheral portion of the window glass by emitting light from the light source;
A control means for controlling a light emitting operation of the light source;
having
The window glass includes two glass plates, an intermediate film sandwiched between the two glass plates , a light blocking member, and a reflecting member that reflects light emitted from the light source to the inside of the vehicle.
having
The light blocking member and the reflecting member are sandwiched between the two glass plates,
The light blocking member is located on the outer side of the vehicle than the reflecting member,
The control means changes a size of a light emitting area on the window glass that is illuminated by the light source,
The light emitting region is
a first region located at a right edge portion along a vertical direction of a periphery of the window glass as viewed from inside the vehicle;
a second region located at a left edge portion along a vertical direction of a periphery of the window glass when viewed from inside the vehicle;
A notification device for a vehicle. The notification device according to claim 1, wherein the control means controls the light emission operation of the light source of the notification means according to a situation in which a set condition is satisfied and a notification should be given to the driver. The light source is disposed opposite the window glass ,
The notification device according to claim 1 or 2, wherein the reflective member is disposed on at least a portion of a peripheral edge of the window glass. The notification device according to claim 3 , wherein the light blocking member is disposed on an outer side of the vehicle than the reflecting member so as to overlap the reflecting member. The notification device according to claim 1 , wherein the control means controls the operation of the light source based on a positional relationship between the vehicle and a lane marking on a road. The notification device according to claim 1 , wherein the control means controls the operation of the light source based on a speed difference and a distance between the vehicle and a vehicle traveling ahead of the vehicle. 7. The notification device according to claim 1 , wherein the control means controls the operation of the light source based on a speed difference and a distance between the vehicle and a vehicle traveling beside the vehicle. The notification device according to claim 1 , wherein the control means controls the operation of the light source based on a distance to an object located around the vehicle when the vehicle moves backward. The notification device according to claim 1 , wherein the control means controls the operation of the light source based on an operating status of an electric heating device in the vehicle. The control means
The second region is made to emit light more widely than the first region, or
The notification device according to claim 1 , wherein the second area is illuminated narrower than the first area.

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