CN109386811B - Vehicle lamp - Google Patents
Vehicle lamp Download PDFInfo
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- CN109386811B CN109386811B CN201810743227.3A CN201810743227A CN109386811B CN 109386811 B CN109386811 B CN 109386811B CN 201810743227 A CN201810743227 A CN 201810743227A CN 109386811 B CN109386811 B CN 109386811B
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- Prior art keywords
- display
- marker
- lamp
- light
- marker lamp
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention aims to provide a vehicle lamp capable of improving reliability. The vehicle lamp includes: at least one marker light (21A, 21B); a display (23) for displaying an image; a detection unit (4) for detecting the state of the marker lamp; and a control unit (3) that switches at least a part of the display (23) to at least a part of the at least one marker light based on information from the detection unit (4). The state of the marker lamp is detected by the detection unit, and when some trouble occurs in the marker lamp, at least a part of the display can be switched to at least a part of the marker lamp in which the trouble occurred.
Description
Cross Reference to Related Applications
The present application claims priority to japanese patent application 2017-156639 entitled "vehicle light" filed on 8/14 of 2017, the entire contents of which are incorporated herein by reference.
Technical Field
The present invention relates to a vehicle lamp, and more particularly, to a vehicle lamp with improved reliability.
Background
Under regulation, a vehicle such as an automobile includes a brake light, a turn signal light, and a sign light such as a backup light. In recent years, in order to improve the degree of freedom in design, the notification function, and the like, it has been proposed to provide a display device on the surface of the vehicle body of the vehicle and display characters, graphics, and the like on the display device. For example, patent document 1 listed below describes an advertisement presentation system in which a display panel such as a liquid crystal display device is attached to a surface of a vehicle body of an automobile, and desired images, characters, and the like are displayed on the display panel to perform advertisement.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2013-089096
Disclosure of Invention
Problems to be solved by the invention
The marker lamp is lighted up around the clock. In particular, in order to make these sign lamps noticeable even in bright daytime surroundings, it is necessary to increase the brightness of the sign lamps to some extent. Therefore, the light source of the marker lamp tends to be easily deteriorated due to the long-term use of the marker lamp, and a failure may occur in the marker lamp. In the present specification, the "marker lamp" refers to a light source other than a headlight among light sources for irradiating light to the outside of the vehicle, and is a light source provided in the vehicle as defined by regulations, such as a tail lamp, a stop lamp, a turn signal lamp, and a back-up lamp.
On the other hand, the display unit for displaying characters, graphics, and the like as described in patent document 1 is not conventionally assumed to be used as a marker lamp. Therefore, in the case where such a display portion is used as a vehicle lamp in combination with a marker lamp, the display portion cannot be replaced with the marker lamp even if the light source of the marker lamp is deteriorated or a failure occurs in the marker lamp as described above, and thus the vehicle lamp needs to be repaired.
Accordingly, an object of the present invention is to provide a vehicle lamp with improved reliability.
Means for solving the problems
In order to solve the above problem, a vehicle lamp according to the present invention includes: at least one marker light; a display for displaying an image; a detection unit for detecting the state of the marker lamp; and a control unit that switches at least a part of the display to at least a part of at least one of the marker lamps based on information from the detection unit.
In the vehicle lamp according to the present invention, the state of the marker lamp is detected by the detection unit, and when some trouble occurs in the marker lamp, at least a part of the display can be switched to at least a part of the marker lamp in which the trouble has occurred. Therefore, even if some trouble occurs in the indicator lamp, the function as the indicator lamp can be ensured using the display. In the vehicle lamp according to the present invention, even if some trouble occurs in the marker lamp, the function as the marker lamp can be ensured, and therefore, the reliability can be improved.
In addition, it is preferable that the light emission intensity of the light emitted from one of the marker lamps including the portion into which at least a part of the display is switched is equal to or higher than the light emission intensity of the light emitted from one of the marker lamps before the at least a part of the display is switched to the one marker lamp.
By switching at least a part of the display to the marker lamp in such a manner that the emission intensity of the light emitted from the marker lamp becomes equal to or higher than a predetermined value, the brightness of the marker lamp specified by the regulation can be maintained after the switching. For example, when the marker lamp cannot be turned on, the light emission intensity of the light emitted from the portion of the display switched to the marker lamp is set to the predetermined value or more as described above. For example, when the marker lamp is dimmed, the total of the light emission intensities of the light emitted from the dimmed marker lamp and the portion of the display switched to the marker lamp is set to be equal to or greater than the predetermined value as described above.
In addition, it is preferable that an area of one of the indicator lights including a portion into which at least a part of the display is switched is equal to or larger than an area of one of the indicator lights before at least a part of the display is switched to the one of the indicator lights.
Even if the marker lamp cannot be turned on, at least a part of the display is switched to the marker lamp as described above, and the area of the marker lamp specified by the regulation can be secured after the switching.
Preferably, the area of the display is larger than the area of at least one of the indicator lamps.
By making the area of the display larger than the area of at least one of the marker lights, it is possible to display an image on a part of the display even after switching the part of the display to the marker light, or to switch another part of the display to another marker light.
Preferably, after a part of the display is switched to at least a part of at least one of the marker lamps, an image is displayed on another part of the display.
By displaying an image on a part of the display even after the part of the display is switched to the marker lamp, it is possible to suppress a degree of freedom in design of the vehicle lamp and a reduction in the notification function.
Preferably, the display has a luminance lower than that of the marker lamp.
The brightness of the marker lights is regulated by legislation, but there is no particular regulation regarding the brightness of the image displayed by the display. Therefore, by making the luminance of the display lower than the luminance of the marker lamp in accordance with the surrounding situation of the vehicle, it is possible to suppress the light source of the display from deteriorating faster than the light source of the marker lamp.
In addition, it is preferable that at least one of the marker lights is a brake light.
By setting at least one of the marker lights provided in the vehicle lamp of the present invention as a brake light, even if a failure occurs in a brake light that is considered to be particularly important among the marker lights provided in the vehicle, the function of the brake light can be ensured.
Preferably, the display and the marker lamp are disposed adjacent to each other.
By disposing the display and the marker lamp adjacent to each other, the sense of incongruity before and after switching the display to the marker lamp can be reduced.
Effects of the invention
As described above, according to the present invention, a vehicle lamp capable of improving reliability is provided.
Drawings
Fig. 1 is a diagram showing an example of a vehicle on which a vehicle lamp according to an embodiment of the present invention is mounted.
Fig. 2 is a block diagram of a vehicle lamp in an embodiment of the present invention.
Fig. 3 is a diagram showing a pixel of the display shown in fig. 2.
Fig. 4 is a diagram showing a control flow of the control unit shown in fig. 2.
Fig. 5 is a diagram showing a state after a part of the display is switched to the marker lamp in the display shown in fig. 2.
Description of the reference numerals
1. A vehicular lamp; 3. a control unit; 4. a detection unit; 21A, a first identification lamp; 21B, a second identification lamp; 23. a display; VE, vehicle.
Detailed Description
Hereinafter, specific embodiments of the vehicle lamp according to the present invention will be described by way of example with reference to the accompanying drawings. The embodiments are given by way of example to facilitate understanding of the invention and are not intended to limit the invention. The present invention can be modified and improved from the following embodiments without departing from the gist thereof.
Fig. 1 is a diagram showing an example of a vehicle on which the vehicle lamp according to the present embodiment is mounted. Fig. 1 is a view of the vehicle VE as viewed from the rear side. As shown in fig. 1, one vehicle lamp 1 is provided on each of the rear surfaces of the vehicle VE in the left-right direction in the present embodiment.
Fig. 2 is a block diagram of the vehicle lamp 1 in the present embodiment. As shown in fig. 2, the vehicle lamp 1 of the present embodiment includes, as main components: a first marker lamp 21A and a second marker lamp 21B as marker lamps, a display 23, a control unit 3, and a detection unit 4. The first marker lamp 21A, the second marker lamp 21B, and the display 23 are exposed to the outside from the vehicle VE, and emit light toward the outside of the vehicle VE.
The first marker lamp 21A and the second marker lamp 21B are marker lamps having different functions from each other. Since the indicator lamps do not need to be turned on all the time, the first indicator lamp 21A and the second indicator lamp 21B do not need to be turned on all the time. That is, the first marker lamp 21A and the second marker lamp 21B can be understood as being portions that are set to be in a state in which the marker lamps are continuously turned on or can be turned on when the marker lamps are to be turned on. Further, the flicker is included in the lighting. The time when the indicator lamp is to be turned on means, for example, when a brake of the vehicle VE is operated when the indicator lamp is a brake lamp, when a direction indicator of the vehicle VE is input when the indicator lamp is a turn indicator lamp, when the shift position of the vehicle VE is put into a reverse gear when the indicator lamp is a reverse lamp, or when a headlight of the vehicle VE is turned on when the indicator lamp is a tail lamp. The first indicator lamp 21A of the present embodiment is a portion where a tail lamp and a stop lamp are turned on, and the second indicator lamp 21B of the present embodiment is a portion where a turn signal lamp is turned on. The light sources of the first marker light 21A and the second marker light 21B are not particularly limited, and may be, for example, several to several tens of Light Emitting Diodes (LEDs).
The display 23 is a part for displaying a predetermined image. The display 23 of the present embodiment is formed adjacent to the second marker light 21B. As will be described later, the area of the display 23 is equal to or larger than the areas of the first marker lamp 21A and the second marker lamp 21B before at least a part of the display 23 is switched to at least one of the first marker lamp 21A and the second marker lamp 21B by the control unit 3. The image displayed on the display 23 may be various characters, graphics, symbols, or the like, and may be a still image or a moving image. Such an image is applied to, for example, communication with a driver of a rear vehicle or a pedestrian.
Fig. 3 is a diagram showing a pixel of the display 23. As shown in fig. 3, the display 23 has a plurality of pixels 24 arranged in a matrix shape. Each pixel 24 of the display 23 includes: a red display dot 24R that emits red light, a green display dot 24G that emits green light, and a blue display dot 24B that emits blue light. Therefore, in the present embodiment, the display 23 is set to be capable of color display of RBGs.
As shown in fig. 2, a scanning line driving circuit 25H is disposed on the lateral side of the display 23, and a data line driving circuit 25V is disposed on the lower side of the display 23. The scanning line driving circuit 25H and the data line driving circuit 25V are electrically connected to the display dots of the pixels 24, and the display dots are turned on or off by applying a voltage or a flowing current from the scanning line driving circuit 25H and the data line driving circuit 25V. Further, by controlling the voltage and the current from the scanning line driving circuit 25H and the data line driving circuit 25V, the luminance of each dot can be adjusted. Examples of the display constituting the display 23 include an organic EL display, a liquid crystal display, and a micro LED display.
The detection unit 4 detects the states of the first marker lamp 21A and the second marker lamp 21B. Specifically, the detection unit 4 transmits the information to the control unit 3 when the light emission intensity of the light emitted from the first marker lamp 21A or the second marker lamp 21B is less than a predetermined value, the first marker lamp 21A or the second marker lamp 21B is not turned on, or a circuit for supplying current to the first marker lamp 21A or the second marker lamp 21B is short-circuited. Such a detection unit 4 is configured by combining with a photometer or the like, for example. In the case where the detection unit 4 is used in combination with the photometer, the detection unit 4 detects the current supplied to the light source of the first marker light 21A or the second marker light 21B and can detect an abnormality of the first marker light 21A or the second marker light 21B based on the measurement result of the photometer. That is, the detection unit 4 detects an abnormality of the first marker lamp 21A or the second marker lamp 21B when the brightness of the first marker lamp 21A or the second marker lamp 21B is darker than the brightness estimated from the amount of current supplied to the light source of the first marker lamp 21A or the second marker lamp 21B, or when the marker lamp is not lit when it should be lit.
The control unit 3 is electrically connected to the scanning line drive circuit 25H and the data line drive circuit 25V, and controls the lighting state of each pixel 24 of the display 23, thereby switching a part of the display 23 to at least a part of at least one of the first marker lamp 21A and the second marker lamp 21B. The control unit 3 controls the lighting state of each pixel 24 of the display 23 as described above, so that a predetermined image is displayed on the display 23. Further, the control unit 3 is electrically connected to the light sources of the first marker light 21A and the second marker light 21B, and controls to turn on the first marker light 21A and the second marker light 21B at an appropriate timing. The control unit 3 performs these controls based on a signal input from the outside to the control unit 3. In the present embodiment, the Control unit 3 is electrically connected to the detection unit 4, a Control device 5 such as an ecu (engine Control unit) of the vehicle VE, and the image display instruction unit 6. The image display instructing unit 6 outputs a signal for displaying a predetermined image to the display 23. The signal includes information relating to the content of the image displayed on the display 23.
Next, the operation of the vehicle lamp 1 of the present embodiment will be described. Fig. 4 is a diagram illustrating a control flow of the control unit 3.
In step SP1, when the detection unit 4 detects an abnormality of the first marker lamp 21A or the second marker lamp 21B and a signal for reporting the abnormality of the first marker lamp 21A or the second marker lamp 21B is input from the detection unit 4 to the control unit 3, the routine proceeds to step SP 2. On the other hand, in step SP1, if the signal is not input to the control unit 3, the routine proceeds to step SP 3. The abnormality of the first marker lamp 21A or the second marker lamp 21B refers to a case where the emission intensity of the light emitted from the first marker lamp 21A or the second marker lamp 21B is less than a predetermined value, or a case where the first marker lamp 21A or the second marker lamp 21B is not turned on, as described above.
In step SP2, the control unit 3 switches at least a part of the display 23 to at least a part of at least one of the first marker light 21A and the second marker light 21B. Fig. 5 is a diagram showing a state in which a part of the display 23 shown in fig. 2 is switched to the second marker lamp 21B. Fig. 5 is a diagram showing a state in which the second marker lamp 21B shown in fig. 2 is not lit, and a part of the display 23 shown in fig. 2 is switched to the second marker lamp 23B. Therefore, in the case shown in fig. 5, the second marker lamp 21B shown in fig. 2 becomes the marker lamp non-lighting portion 22 which cannot light the marker lamp, and a part of the display 23 becomes the second marker lamp 23B. For example, in step SP1, when a signal indicating that the second marker lamp 21B is not lit is input from the detection unit 4 to the control unit 3 as described above, the control unit 3 switches a part of the display 23 to the second marker lamp 23B in step SP2 as shown in fig. 5.
For example, in step SP1, when a signal indicating that the emission intensity of the light emitted from the second marker lamp 21B is less than a predetermined value is input from the detection unit 4 to the control unit 3, in step SP2, the control unit 3 switches a part of the display 23 to the second marker lamp 23B. In this case, a part of the display 23 becomes the second marker lamp 23B on the basis of the second marker lamp 21B shown in fig. 2.
For example, in step SP1, when a signal indicating that the first marker lamp 21A is not turned on or the emission intensity of the light emitted from the first marker lamp 21A is smaller than a predetermined value is input from the detection unit 4 to the control unit 3, the control unit 3 performs the following control in step SP 2. That is, the control unit 3 switches a part of the display 23 to the first marker light 21A as indicated by parenthesized writing in fig. 5, similarly to the case of the second marker light 21B described above.
In step SP2, the control unit 3 of the present embodiment adjusts the light emission intensity of the marker lamp as follows. That is, when the marker lamp is turned on as described below, the control unit 3 sets the emission intensity of light emitted from one marker lamp including a portion where at least a part of the display 23 is switched to be equal to or higher than the emission intensity of light emitted from the one marker lamp before the switching of the at least a part of the display 23 to the one marker lamp. Specifically, when a part of the display 23 is switched to the first marker lamp 23A and the marker lamps are turned on as described below, the control unit 3 sets the emission intensity of the light emitted from the first marker lamps 21A and 23A after the switching to be equal to or higher than the emission intensity of the light emitted from the first marker lamp 21A before the switching. Here, the first marker lamps 21A and 23A after the switching are portions of the display 23 switched to the first marker lamp 23A when the first marker lamp 21A before the switching is not turned on as described above. On the other hand, when the first marker lamp 21A before switching is dimmed as described above, the first marker lamps 21A and 23A after switching are the portions of the display 23 and the first marker lamp 21A before switching are switched to the first marker lamp 23A. That is, when the marker lamp is dimmed, the sum of the light emission intensities of the light emitted from the dimmed marker lamp and the portion of the display 23 switched to the marker lamp is set to be equal to or greater than the predetermined value as described above.
As a method of increasing the light emission intensity of the light emitted from the first marker lamp 23A after the switch from a part of the display 23 to the first marker lamp 23A, it is conceivable to increase the area of the part of the display 23 switched to the first marker lamp 23A or increase the luminance of the part. Therefore, for example, the control unit 3 increases the area of the portion of the display 23 switched to the first marker light 23A or increases the luminance of the portion as the first marker light 21A becomes dark.
In step SP2, the control unit 3 of the present embodiment controls the area of the marker lamp as follows. That is, the control unit 3 sets the area of one marker light including the portion into which at least a part of the display 23 is switched to be equal to or larger than the area of the one marker light before the at least a part of the display 23 is switched to the one marker light. Specifically, when a part of the display 23 is switched to the first marker lamp 23A, the control unit 3 sets the area of the first marker lamps 21A and 23A after the switching to be equal to or larger than the area of the first marker lamp 21A before the switching. That is, when the first marker lamp 21A is not lit, the area of the portion of the display 23 switched to the first marker lamp 23A is set to be equal to or larger than the area of the first marker lamp 21A.
Next, in step SP3, the control unit 3 proceeds to step SP4 when the lighting signal from the control device 5 is input, and returns to step SP1 when the lighting signal from the control device 5 is not input. The lighting signal is a signal for notifying when the marker lamp is turned on as described above.
In step SP4, the control unit 3 lights the first marker lamps 21A and 23A or the second marker lamps 21B and 23B based on the lighting signal from the control device 5. Specifically, the controller 5 monitors the brake operation of the vehicle VE, and outputs a signal indicating the brake operation when the brake operation is performed. Since the first indicator lamps 21A and 23A of the present embodiment are the portions where the tail lamp and the stop lamp are turned on, the control unit 3 turns on the stop lamp among the first indicator lamps 21A and 23A based on the signal indicating the braking operation. Since the first indicator lamps 21A and 23A are also portions for lighting the tail lamps, the control unit 3 receives a signal from the control device 5 in conjunction with lighting of the headlights of the vehicle VE to light the tail lamps in the first indicator lamps 21A and 23A. When the stop lamp and the tail lamp are turned on in this way, the control unit 3 controls a part of the display 23 set as the first marker lamp 23A to turn on the red light. In this case, for example, the red display dot 24R is turned on, and the green display dot 24G and the blue display dot 24B are not turned on, in each pixel 24 in the region set as the first marker lamp 23A.
Since the second indicator lamps 21B and 23B of the present embodiment are portions where the turn indicator lamps are turned on, when the direction indicator of the vehicle VE is input, the control device 5 outputs a signal indicating that, and the control unit 3 turns on the turn indicator lamps among the second indicator lamps 21B and 23B based on the signal. When the turn signal lamp is turned on in this way, the control unit 3 controls a part of the display 23 set as the second marker lamp 23B to turn on orange light. In this case, for example, the red display dot 24R and the green display dot 24G are lit, and the blue display dot 24B is not lit, in each pixel 24 set as the region of the second marker lamp 23B.
In addition, since the portions of the display 23 not set as the indicator lamps may not have the same brightness as the first indicator lamp 21A and the second indicator lamp 21B, the brightness of the display 23 may be lower than the first indicator lamp 21A and the second indicator lamp 21B in the normal use. The brightness of the marker lamp is regulated by a law, but there is no particular regulation concerning brightness with respect to the image displayed in the display 23. Therefore, by reducing the luminance of the display 23 in accordance with the situation around the vehicle VE, deterioration of the light source of the display 23 can be suppressed. In this way, when the luminance of the display 23 is reduced during normal use, the control unit 3 increases the luminance of a portion of the display 23 set as the first marker lamp 23A or the second marker lamp 23B when the portion is lit.
After the above-described steps SP1 to SP4, if an area that is not set as the first marker lamp 23A or the second marker lamp 23B remains in the display 23, the process can return to step SP 1. In this case, the above steps SP1 to SP4 are repeated to switch a part of the display 23 to the first marker light 23A or the second marker light 23B at a time. After the above-described steps SP1 to SP4, the abnormality of the first marker lamp 21A or the second marker lamp 21B is eliminated by performing maintenance on the first marker lamp 21A or the second marker lamp 21B, and a part of the display 23 set as the first marker lamp 23A or the second marker lamp 23B can be restored and returned to the step SP 1.
In addition to the above control, the control unit 3 controls each pixel 24 so that a predetermined image is displayed on the display 23. Specifically, the control section 3 drives the scanning line driving circuit 25H and the data line driving circuit 25V based on information about the content of an image included in the image signal from the image display instructing section 6. The scanning line drive circuit 25H and the data line drive circuit 25V adjust the applied voltage and the flowing current, and adjust the luminance of each pixel 24 in the case of lighting or not lighting and lighting the red display dot 24R, the green display dot 24G, and the blue display dot 24B. In other words, the control unit 3 controls lighting and non-lighting of each display dot of each pixel 24 and controls the luminance of light emitted from each display dot through the scanning line drive circuit 25H and the data line drive circuit 25V. Accordingly, the control unit 3 controls each pixel 24 to display a predetermined image on the display 23.
The area of the display 23 of the present embodiment is larger than the areas of the first marker lamp 21A and the second marker lamp 21B. By making the area of the display 23 larger than the area of at least one marker light, the control unit 3 can display an image on another part of the display 23 or switch another part of the display 23 to another marker light even after switching one part of the display 23 to a marker light.
Therefore, the control unit 3 of the present embodiment can display an image on a part of the display 23 after switching the part of the display 23 to at least a part of at least one marker lamp. By displaying an image on a part of the display 23 even after switching to a marker lamp on another part of the display 23, it is possible to suppress a reduction in the degree of freedom in designing the vehicle lamp 1 and the notification function.
As described above, the vehicle lamp 1 according to the present embodiment includes: the image display device includes a first marker lamp 21A and a second marker lamp 21B as marker lamps, a display 23 for displaying an image, a detection unit 4 for detecting states of the first marker lamp 21A and the second marker lamp 21B, and a control unit 3 for switching at least a part of the display 23 to at least a part of at least one of the first marker lamp 21A and the second marker lamp 21B based on information from the detection unit 4.
The identification light is a device prescribed by law and is an indispensable device for use of the vehicle VE. However, as described above, the light source of the marker lamp tends to be easily deteriorated, and a failure may occur in the marker lamp. On the other hand, an image for use in communication with a pedestrian or the like does not need to be displayed all the time, and the brightness of the image does not need to be as high as that of a marker light in general. Therefore, the light source for the display 23 can suppress deterioration as compared with the light sources used in the first marker lamp 21A and the second marker lamp 21B. In the vehicle lamp 1 according to the present embodiment, the state of the first marker light 21A and the second marker light 21B is detected by the detection unit 4, and when some failure occurs in the first marker light 21A or the second marker light 21B, at least a part of the display 23 can be switched to at least a part of the marker light in which the failure occurred. Therefore, even if some trouble occurs in the first marker lamp 21A or the second marker lamp 21B, the function as a marker lamp can be ensured by the display 23. The vehicle lamp 1 of the present embodiment can ensure the function as a marker lamp even when a failure occurs in the first marker lamp 21A or the second marker lamp 21B in this way, and therefore reliability is improved.
The display 23 and the second marker lamp 21B of the present embodiment are disposed adjacent to each other. By disposing the display 23 and the marker lamp adjacent to each other in this way, the sense of incongruity before and after switching the display 23 to the marker lamp can be reduced.
In the present embodiment, the light emission intensity of the light emitted from one marker lamp including the portion into which at least a part of the display 23 is switched is set to be equal to or higher than the light emission intensity of the light emitted from the one marker lamp before the switching from at least a part of the display 23 to the one marker lamp. By switching at least a part of the display 23 to the marker lamp in this way so that the emission intensity of the light emitted from the marker lamp becomes equal to or higher than a predetermined value, the brightness of the marker lamp specified by the regulation can be maintained after the switching.
In the present embodiment, the area of one marker light including the portion into which at least a part of the display 23 is switched is set to be equal to or larger than the area of the one marker light before the at least a part of the display 23 is switched to the one marker light. Even if the marker lamp cannot be turned on, by switching at least a part of the display 23 to the marker lamp as described above, the area of the marker lamp specified by the law can be secured after the switching.
The present invention has been described above by way of examples of the embodiments, but the present invention is not limited thereto.
For example, although the above embodiment has been described with an example in which the control unit 3 switches a part of the display 23 to at least one of the first marker light 21A and the second marker light 21B, the entire display 23 may be switched to at least one of the first marker light 21A and the second marker light 21B. The switching of the display 23 to the indicator lamp may be performed by switching a part of the display 23 to the indicator lamp at a time, or by switching all of the display 23 to the indicator lamp at once.
In the above-described embodiment, the description has been given of an example in which the emission intensity of light emitted from one marker light including a portion into which at least a part of the display 23 is switched is set to be equal to or higher than the emission intensity of light emitted from the marker light before the at least a part of the display 23 is switched to the one marker light. However, the present invention is not limited to this embodiment. The brightness of one marker lamp may be set to a range satisfying the regulations before and after at least a part of the display 23 is switched to at least a part of the marker lamp by the control unit 3.
In the above-described embodiment, an example has been described in which the area of one marker light including the portion to which at least a part of the display 23 is switched is set to be equal to or larger than the area of the one marker light before the at least a part of the display 23 is switched to the one marker light. However, the present invention is not limited to this embodiment. The area of one marker light may be set to a range that satisfies the regulations before and after at least a part of the display 23 is switched to at least a part of the marker light by the control unit 3.
In the above embodiment, the second marker light 21B is described as the marker light non-lighting portion 22. However, when the indicator lamp can be turned on despite its reduced brightness, the indicator lamp whose brightness has been reduced may or may not be turned on after at least a part of the display 23 is switched to the indicator lamp.
In the above embodiment, the first marker light 21A and the second marker light 21B are provided, but the number of marker lights is not particularly limited. The marker lamp is not limited to the tail lamp, the brake lamp, and the turn signal lamp described in the above embodiments, and may be a backup lamp, for example. However, it is preferable that at least one of the identification lamps is a brake lamp. By setting at least one of the indicator lights provided in the vehicle lamp 1 to be a brake light, even if a failure occurs in a brake light that is considered to be particularly important among the indicator lights provided in the vehicle VE, the function of the brake light can be ensured.
In the above embodiment, the switching of the display 23, the display of the image on the display 23, and the control of the lighting of the marker lamp are performed by one control unit 3, but a plurality of control units may be provided and the control units may perform the respective controls by different control units.
In the above-described embodiment, the sign lamp and the display are disposed at positions adjacent to each other to form a single display, but the present invention is not limited to this embodiment. The marker light and the display may be formed at positions separated from each other, respectively.
In the above embodiment, the example in which the luminance of the display 23 is increased and the display 23 is set to the first marker lamp 23A or the second marker lamp 23B has been described, but the display 23 may be set to the luminance equal to or higher than the luminance of the first marker lamp 21A and the second marker lamp 21B in normal use.
Industrial applicability
According to the present invention, a vehicle lamp capable of improving reliability is provided, which can be used in the field of vehicles such as automobiles.
Claims (6)
1. A lamp for a vehicle, characterized in that,
the vehicle lamp includes:
at least one marker light;
a display that displays an image;
a detection unit that detects a current supplied to the marker lamp and detects an abnormal state of the marker lamp based on a measurement result of a photometer that measures the illuminance of the marker lamp; and
a control section that switches at least a part of the display to at least a part of at least one of the marker lights based on information from the detection section,
the display is a display integrated with the marker lights arranged in positions adjacent to each other,
after a portion of the display is switched to at least a portion of at least one of the identification lights, an image is displayed on another portion of the display.
2. The vehicular lamp according to claim 1,
the light emission intensity of light emitted from one marker light including a portion into which at least a part of the display is switched is equal to or higher than the light emission intensity of light emitted from one marker light before at least a part of the display is switched to one marker light.
3. The vehicular lamp according to claim 1 or 2,
the area of one marker light including a portion into which at least a part of the display is switched is equal to or larger than the area of one marker light before at least a part of the display is switched to one marker light.
4. The vehicular lamp according to claim 1 or 2,
the area of the display is larger than the area of at least one of the marker lights.
5. The vehicular lamp according to claim 1 or 2,
the display has a lower brightness than the marker light.
6. The vehicular lamp according to claim 1 or 2,
at least one of the identification lights is a brake light.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017156639A JP2019034640A (en) | 2017-08-14 | 2017-08-14 | Vehicle lamp fitting |
| JP2017-156639 | 2017-08-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109386811A CN109386811A (en) | 2019-02-26 |
| CN109386811B true CN109386811B (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810743227.3A Active CN109386811B (en) | 2017-08-14 | 2018-07-09 | Vehicle lamp |
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| Country | Link |
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| JP (1) | JP2019034640A (en) |
| CN (1) | CN109386811B (en) |
Families Citing this family (2)
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|---|---|---|---|---|
| WO2023033138A1 (en) * | 2021-09-06 | 2023-03-09 | 株式会社小糸製作所 | Vehicular lamp and control device and control method for vehicular lamp |
| EP4375140A1 (en) * | 2022-11-23 | 2024-05-29 | Marelli Automotive Lighting Italy S.p.A. Con Socio Unico | Rear light device of a racing car and related operation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201901060U (en) * | 2010-12-03 | 2011-07-20 | 山东理工大学 | Automobile turn display |
| CN202743161U (en) * | 2012-09-12 | 2013-02-20 | 薛红兵 | Automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1799902A (en) * | 2005-01-07 | 2006-07-12 | 中华研升科技股份有限公司 | Automobiles indicator lamp system |
| CN201040504Y (en) * | 2007-02-28 | 2008-03-26 | 蔡历萍 | Picture and word flashing two-stage brake state auxiliary enhancement alarm |
| JP2012102065A (en) * | 2010-11-12 | 2012-05-31 | Kao Corp | Method for using hair cosmetic, and the hair cosmetic |
| CN202782886U (en) * | 2012-08-29 | 2013-03-13 | 湖南省金华车辆有限公司 | Display device for multifunctional guardrail cleaning vehicle |
| FR3026689A1 (en) * | 2014-10-02 | 2016-04-08 | Valeo Vision | A PICTOGRAM DISPLAY SIGNALING DEVICE FOR A MOTOR VEHICLE, AND A SIGNALING LIGHT PROVIDED WITH SUCH A LUMINOUS DEVICE |
| CN106143284A (en) * | 2015-04-21 | 2016-11-23 | 天津职业技术师范大学 | Edible automobile combined tail lamp system |
| JP6738613B2 (en) * | 2016-02-10 | 2020-08-12 | 株式会社小糸製作所 | Vehicle display system |
-
2017
- 2017-08-14 JP JP2017156639A patent/JP2019034640A/en active Pending
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- 2018-07-09 CN CN201810743227.3A patent/CN109386811B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201901060U (en) * | 2010-12-03 | 2011-07-20 | 山东理工大学 | Automobile turn display |
| CN202743161U (en) * | 2012-09-12 | 2013-02-20 | 薛红兵 | Automobile |
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| Publication number | Publication date |
|---|---|
| JP2019034640A (en) | 2019-03-07 |
| CN109386811A (en) | 2019-02-26 |
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