JP2006264410A - Vehicle display device - Google Patents

Abstract

An object of the present invention is to provide a vehicle display device that can safely transmit an incoming call of a mobile terminal to a driver and can be used at low cost regardless of the model of the mobile terminal.
An image pickup means 3 for picking up an image including incoming caller information displayed on a display window 10A of a mobile phone 10 and a head-up display 5 for displaying an image picked up by the image pickup means 3 are provided. Even when the incoming call of the mobile phone 10 is during driving of the vehicle, the driver can recognize that there is an incoming call by looking at the head-up display 5. The driver only needs to change the line of sight to the head-up display 5 from the front, and the angle is extremely small.
[Selection] Figure 1

Description

  The present invention relates to a vehicular display device for transmitting incoming caller information of a mobile terminal such as a mobile phone to a driver.

Recently, mobile phones have been used in vehicles such as automobiles. The police and various media are enlightening that the driver stops the car once when the driver operates the mobile phone in the car.
However, since it is possible to select a time that is convenient for the driver, it is possible to use a mobile phone while the vehicle is stopped. However, an incoming call does not necessarily occur when it is convenient for the driver, and it arrives while driving. There are many cases.
In this case, it is practically seen that the driver is operating the mobile phone while driving slowly, and in this operation, the line of sight is removed from the front of the windshield.

Therefore, there has conventionally been a display device that displays a necessary information on a head-up display by inputting a downlink serial signal from a mobile phone (Patent Document 1).
This Patent Document 1 discloses an interface unit that interfaces a downlink serial signal, a control unit that inputs a downlink serial signal level-converted by the interface unit, analyzes data, performs storage and display processing, and downlink serial data A storage unit that temporarily stores data, a display driver that displays serial data determined to be necessary based on display processing of the control unit on the head-up display, and a head-up display that is driven by the display driver. Sometimes the driver can easily view the communication information without taking his eyes off the front of the windshield.

Conventionally, there is an in-vehicle information processing apparatus including a mobile terminal having a display screen for displaying image information and an in-vehicle display unit having a lens for enlarging an image of the display screen of the mobile terminal (Patent Document). 2).
In Patent Document 2, the in-vehicle display unit is mounted on an instrument panel of a vehicle, and information on the display screen is recognized by the driver through the lens using the backlight of the display screen of the mobile terminal. Is done.

JP 2000-52810 A Japanese Patent Laid-Open No. 2002-101542

In Patent Document 1, a serial signal input terminal is required for a mobile phone in order to use the system. Therefore, the existing mobile phone cannot be used as it is, and the user has to buy a new type of mobile phone, resulting in a cost burden. Furthermore, with the adoption of the system, a communication method between communication companies has to be standardized, which also increases costs.
In Patent Document 2, since the in-vehicle display unit is provided on the instrument panel, the driver who wants to see the incoming call information has to change his gaze from the front to the instrument panel. Furthermore, Patent Document 2 uses a backlight of a mobile terminal to transmit incoming information to a driver. However, depending on the model of the mobile terminal, the amount of light from the backlight may not be sufficient for projection.

  An object of the present invention is to provide a vehicle display device that can safely transmit an incoming call of a mobile terminal to a driver and can be used at low cost regardless of the model of the mobile terminal.

  The vehicle display device of the present invention includes an imaging unit that captures at least incoming caller information among images displayed on a display window of a mobile terminal, and an in-vehicle display unit that displays incoming caller information captured by the imaging unit. The in-vehicle display unit is a head-up display arranged in a front view of the driver of the vehicle.

According to the present invention, when there is an incoming call to the portable terminal, the caller information, for example, the caller's phone number and name is picked up by the image pickup means and displayed on the head-up display.
Even when the incoming call of the mobile terminal is during driving of the vehicle, the driver can recognize that the incoming call has been received by looking at the head-up display. Even if the vehicle is traveling when there is an incoming call, it is sufficient for the driver to change his / her line of sight from the front to the head-up display, and the angle is extremely small, so the time to look away from the front is shortened and safe driving is ensured Is done.
In the present invention, the existing portable terminal can be used as it is, and the information displayed on the display window of the portable terminal is displayed as it is. Can be low.
Furthermore, since the incoming caller information displayed on the display window is picked up by the imaging means and displayed on the head-up display, clear image information about the incoming caller can be obtained even when the amount of backlight of the display window is small. Can be displayed on a head-up display.

In the present invention, it is preferable that the imaging unit captures an image displayed on the display window of the portable terminal as it is.
In this invention, not only the incoming caller information but also other image information displayed on the display window, such as the incoming time and radio wave reception status, etc. are displayed on the head-up display. Whether or not it is necessary to use the terminal can be determined appropriately.

The image pickup means displays an incoming call detection sensor that detects that the mobile terminal has received an incoming call signal, and displays an image of the display window on the head-up display when the incoming call detection sensor detects reception of the incoming call signal. The structure provided with the control part is preferable.
In the present invention, the control unit receives a signal from the incoming call detection sensor and displays an image of the display window on the head-up display.
For this reason, the image of the display window is displayed as it is on the head-up display only when reception of the incoming signal is detected by the incoming detection sensor, so that the image of the display window is not displayed on the head-up display when there is no incoming call. For this reason, the head-up display can be used for other purposes, for example, instrumentation and map information when there is no incoming call, so that the head-up display can be used effectively.

The incoming detection sensor is preferably a light detection sensor that detects that the display window of the portable terminal emits light when the incoming signal is received.
In the present invention, when detecting an incoming call, a function of the mobile terminal is used in which the display window emits light when an incoming signal is received. Therefore, it is not necessary to add a function to the mobile terminal in order to detect the presence / absence of an incoming signal, so that the existing mobile terminal can be used as it is.
In particular, since it is configured not to detect a ring tone or vibration (vibrator) but to detect light emission of the display window, the portable terminal is involved in a normal mode in which a ring tone is generated or a manner mode in which vibration is generated instead of a ring tone. Incoming calls can be detected without fail.

Preferably, the incoming detection sensor is a vibration detection sensor that detects that the mobile terminal vibrates when the incoming signal is received.
In the present invention, when detecting an incoming call, the function of the portable terminal that vibrates when an incoming signal is received is used. Therefore, it is not necessary to add a function to the mobile terminal in order to detect the presence / absence of an incoming signal, so that the existing mobile terminal can be used as it is.

The incoming call detection sensor is preferably a ringtone detection sensor that detects that the mobile terminal generates a ringtone when the incoming signal is received.
In the present invention, when detecting an incoming call, a function of a portable terminal is used that generates a ring tone when receiving an incoming signal. Therefore, it is not necessary to add a function to the mobile terminal in order to detect the presence / absence of an incoming signal, so that the existing mobile terminal can be used as it is.
Here, as the incoming call detection sensor, any one of the above-described sensors may be used, or a plurality of them may be used in combination.

The image pickup means preferably has a main body on which the portable terminal is arranged.
In this invention, the space for placing the mobile terminal is secured in advance, so that the mobile terminal does not move as the vehicle is driven.

It is preferable that the control unit display an image of the display window on the head-up display for a predetermined time after detecting the reception of the incoming signal by the incoming detection sensor.
In the present invention, the image of the display window disappears from the head-up display after a predetermined time has elapsed, so the head-up display can be used for other purposes, for example, display of map information.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
[1. Vehicle configuration]
FIG. 1 is a diagram of a front view from the driver's seat of the vehicle according to the first embodiment.
In FIG. 1, a vehicle 1 is a sedan type passenger car. The instrument panel 2 of the vehicle 1 is provided with existing facilities such as a handle 2A, instruments 2B such as a speed meter and an accelerometer, a vent 2C and a car audio device 2D, and is provided below the car audio device 2D. The image pickup means 3 for picking up the image displayed on the display window 10A of the mobile phone 10 which is a mobile terminal as it is is arranged.
A head-up display 5 as an in-vehicle display unit is provided in the vicinity of the instrument 2B on the windshield 4 of the vehicle 1.

The mobile phone 10 has a display window 10A formed in the upper front portion thereof, a plurality of operation keys 10B are arranged below the display window 10A, and an antenna 10C is provided on the top. The mobile phone 10 is a well-known mobile phone. When an incoming call signal is received, incoming caller information such as a caller name 10Na, a telephone number 10Nu and a caller's photograph 10P, an incoming call time 10T, and a radio wave reception status 10R are displayed on a display window. The image is displayed on the screen 10A (see FIG. 6), and the entire image emits light.
A normal mode for generating a ring tone when receiving an incoming signal and a vibrator mode for vibrating the mobile phone 10 without generating a ring tone can be selected.

[2. Head-up display configuration]
FIG. 2 shows a configuration of a projection device 50 including the head-up display 5.
The projection device 50 can employ a variety of configurations as a basic configuration. For example, the projection device 50 described in Japanese Patent Application Laid-Open No. 07-215093 can be given as an example.
The projection device 50 includes a high-intensity light source and an LCD element (not shown) that determines whether light can be transmitted, a hologram projection optical system 51 that includes a hologram optical element that forms an image of light that has passed through the LCD element, and a hologram projection optical system. 51 includes a protective film 52 for preventing foreign substances such as dust from being thrown into 51, and the head-up display 5 for guiding an image that has passed through the projection optical system 51 to the visual field of the driver. Yes.
The hologram projection optical system 51 is provided with a cylindrical or square tube barrel, and can turn on and off a light source and an image (not shown) such as a high-intensity illuminant or a halogen lamp having a relatively narrow emission wavelength region. An LCD element adjusted to be able to be supported and a hologram optical element for projecting light that has passed through the LCD element onto the head-up display 5 are supported with their optical axes aligned.

The head-up display 5 is configured with a half mirror, and the head-up display 5 shown in FIG. 2 is in the form of a sheet that is directly attached to the inside of the windshield. In the present embodiment, the structure of the head-up display 5 is not limited to that shown in FIG. 2. For example, the head-up display 5 shown in FIG. 3 includes a casing 53, and the casing 53 is an instrument. The structure attached to the panel 2 may be sufficient.
Any type of head-up display 5 is arranged in the front view of the driver of the vehicle 1.

[3. Configuration of imaging means]
FIG. 4 is a longitudinal sectional view of the imaging means 3.
In FIG. 4, the imaging means 3 is disposed so as to face a main body 30 on which the mobile phone 10 is disposed, an upright portion 31 provided on the main body 30, and a display window 10 </ b> A of the mobile phone 10 provided on the upright portion 31. A lens 32, a CCD 33 that accumulates optical signals obtained from the lens 32 to generate two-dimensional image data, a control unit 34 that controls the digital signal output from the CCD 33 and sends it to the projection device 50, and a portable An incoming call detection sensor 35 for detecting that the telephone 10 has received an incoming signal is provided.
The main body 30 is made of a synthetic resin, and the inside of the main body 30 is a recess so that the mobile phone 10 is held in a standing state.
The upright portion 31 is formed integrally with the main body 30, and the CCD 34, the control unit 34, and the like are accommodated therein.

The CCD 33 is a circuit element that reproduces and accumulates analog signal charges. The CCD 33 is a kind of semiconductor memory device in which transfer electrodes are arranged on a semiconductor chip, and is used in general imaging devices such as cameras.
The incoming detection sensor 35 is provided adjacent to the CCD 33. The incoming detection sensor 35 is a light detection sensor that detects that the display window 10A of the mobile phone 10 emits light when an incoming signal is received. The light detection sensor includes a light receiving element such as a photodiode or a phototransistor, and sends a signal to the control unit 34 when a large amount of light is received by the light receiving element.

The configuration of the control unit 34 is shown in FIG.
In FIG. 5, the control unit 34 generates image information based on the D / A converter 341 that converts the digital signal output from the CCD 32 into an analog signal, and the analog signal converted by the D / A converter 341. And an image processing circuit 342.
This image processing circuit 342 displays the image of the display window 10A on the head-up display 5 for a predetermined time (for example, 1 minute) after receiving a signal from the incoming detection sensor 35 (FIG. 6). reference).

[4. Action of vehicle display device]
In the vehicle display device having the above-described configuration, when an incoming call is received by the mobile phone 10, the caller name 10Na, the phone number 10Nu, the caller's photograph 10P, etc. are displayed on the display window 10A. The situation 10R and the like are displayed, and this image emits light throughout.
Then, the incoming detection sensor 35 detects the light emission of this image and sends the signal to the image processing circuit 342 of the control unit 34. The image processing circuit 342 sends the image of the display window 10A projected on the CCD 33 via the lens 32 to the head-up display 5, and the image of the display window 10A is displayed as it is on the head-up display 5. The display of this image is continued for a predetermined time (for example, 1 minute).
From the image displayed on the head-up display 5, the driver recognizes the time when the mobile phone 10 received an incoming call, the radio wave reception status, and the information of the incoming call source. At this time, it is sufficient for the driver to change the line of sight to the head-up display 5 from the front even if the vehicle 1 is traveling when an incoming call is received.

[5. Effect of First Embodiment]
Therefore, in the first embodiment, the following effects can be achieved.
(1) The vehicle display device includes an imaging unit 3 that captures an image including incoming call source information displayed on the display window 10A of the mobile phone 10, and a head-up display 5 that displays an image captured by the imaging unit 3. Therefore, even when the incoming call of the mobile phone 10 is during driving of the vehicle, the driver can recognize that the incoming call has been received by looking at the head-up display 5. And it is sufficient for the driver to change his / her line of sight to the head-up display 5 from the front, and the angle is extremely small. Therefore, even when the vehicle 1 is traveling, the time required to keep an eye on the front is shortened and safe driving is ensured. Is done.
Accordingly, in the first embodiment, since the existing mobile phone 10 itself and the communication system can be used as they are, the cost can be reduced. In addition, since the image of the display window 10A such as the caller information displayed on the display window 10A is picked up by the image pickup means 3 and displayed on the head-up display 5, the amount of backlight light of the display window 10A is large. Therefore, clear image information can be displayed on the head-up display 5.

(2) Since the image pickup means 3 picks up the image displayed on the display window 10A of the mobile phone 10 as it is, information other than the incoming call source information such as the incoming time 10T and the radio wave reception status 10R is displayed on the head-up display 5. Therefore, it is possible to properly determine whether or not the driver needs to stop the vehicle once and restart the mobile phone 10.

(3) The imaging means 3 includes an incoming call detection sensor 35 for detecting that the mobile phone 10 has received an incoming call signal, and a display window 10A on the head-up display 5 when the incoming call detection sensor 35 detects reception of the incoming call signal. And a control unit 34 for displaying the image. Therefore, the image of the display window 10A is displayed as it is on the head-up display 5 only when reception of the incoming signal is detected by the incoming detection sensor 35, so that nothing is displayed on the head-up display 5 when there is no incoming call, or Other uses, for example, displaying instrumentation and map information, can effectively use the head-up display 5.

(4) The incoming call detection sensor 35 is a light detection sensor that detects that the display window 10A of the mobile phone 10 emits light when an incoming signal is received. Since this sensor effectively uses a function provided in advance in the mobile phone 10 that the display window 10A emits light when receiving an incoming signal when detecting an incoming call, a separate function is provided to detect the presence of an incoming signal. Therefore, the existing mobile phone 10 can be used as it is. In particular, since it is configured not to detect a ring tone or vibration (vibrator) but to detect light emission of the display window 10A, it is possible to reliably detect an incoming call regardless of the setting mode of the mobile phone 10.

(5) Since the imaging unit 3 includes the main body 30 on which the mobile phone 10 is disposed, the mobile phone 10 may be erroneously moved with the driving of the vehicle 1 by securing a space for placing the mobile phone 10 in advance. Absent. Furthermore, since the mobile phone 10 is held upright on the main body 30, the space for installing the mobile phone 10 can be reduced.

(6) Since the control unit 34 is configured to display the image of the display window 10A on the head-up display 5 for a predetermined time after detecting the reception of the incoming signal by the incoming detection sensor 35, it is set in advance. Since the image of the display window 10A disappears from the head-up display 5 after the predetermined time has elapsed, the head-up display 5 can be used for other purposes, for example, display of map information.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG.
The second embodiment is different from the first embodiment in the configuration of the incoming call detection sensor, and the other configurations are the same as those in the first embodiment. Here, in the description of the second embodiment, the same components as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted or simplified.
FIG. 7 is a longitudinal sectional view of the imaging means 13 according to the second embodiment.
In FIG. 7, the imaging means 13 includes a main body 30, an upright portion 31, a lens 32, a CCD 33, and a control unit 34 according to the first embodiment, and further, an incoming call that detects that the mobile phone 10 has received an incoming call signal. A detection sensor 351 is provided.
The incoming detection sensor 351 is a vibration detection sensor that detects that the mobile phone 10 vibrates when an incoming signal is received.
This vibration detection sensor is attached to a portion of the main body 30 where the mobile phone 10 is placed, and uses various types of devices such as a capacitance type, an eddy current type, a laser Doppler type, and a pressure element type. Can do.

[6. Effect of Second Embodiment]
Therefore, in the second embodiment, in addition to the same operational effects as (1), (2), (3), (5), and (6) of the first embodiment, the following operational effects can be achieved. .
(7) Since the incoming detection sensor 351 is a vibration detection sensor that detects that the mobile phone 10 vibrates when an incoming signal is received, the existing function of the mobile phone 10 that vibrates when an incoming signal is received is detected. We use as it is. Therefore, it is not necessary to add a function to the mobile phone 10 in order to detect the presence / absence of an incoming signal, so that the existing mobile phone 10 can be used as it is. In particular, by using the vibration of the mobile phone 10, the interior of the vehicle can be kept quiet even when there is an incoming call.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIG.
The third embodiment is different from the first embodiment in the configuration of the incoming detection sensor, and the other configurations are the same as those in the first embodiment. Here, in the description of the third embodiment, the same components as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted or simplified.
FIG. 8 is a longitudinal sectional view of the imaging means 23 according to the third embodiment.
In FIG. 8, the image pickup means 23 includes the main body 30, the upright portion 31, the lens 32, the CCD 33, and the control unit 34 according to the first embodiment. A detection sensor 352 is provided.
The incoming call detection sensor 352 is a ringtone detection sensor that detects that the mobile phone 10 generates a ringtone when receiving an incoming call signal.
The vibration detection sensor 352 is attached to a portion near the lens 32 of the upright portion 31 and facing the speaker of the mobile phone 10, and an appropriate device such as a microphone can be used.

[7. Effects of the third embodiment]
Therefore, in 3rd Embodiment, in addition to having the same effect as (1) (2) (3) (5) (6) of 1st Embodiment, there can exist the following effect. .
(8) Since the incoming detection sensor 351 is a ringtone detection sensor that detects that a ringtone of the mobile phone 10 is generated when an incoming signal is received, a mobile phone that generates a ringtone when receiving an incoming signal when detecting an incoming call. The existing function of the telephone 10 is used as it is. Therefore, it is not necessary to add a function to the mobile phone 10 in order to detect the presence / absence of an incoming signal, so that the existing mobile phone 10 can be used as it is. In particular, by using the ring tone of the mobile phone 10, it can be recognized not only from the display on the head-up display 5 but also from the ring tone that there is an incoming call.

It should be noted that the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
For example, in the above embodiment, all the images displayed on the display window 10A are imaged by the imaging means 3, 13, and 23 and displayed on the head-up display 5. However, in the present invention, only the caller information is imaged. It is good also as a structure which images by the means 3,13,23, and displays it on the head-up display 5. FIG.

Further, although the vehicle 1 is a passenger car, it may be a large automobile such as a bus or a truck, or may be a two-wheeled automobile instead of a four-wheeled automobile.
Furthermore, it is good also as a structure which can display a vehicle speed meter and car navigation information using the projection apparatus 50. FIG.
Further, the mobile terminal is not limited to the mobile phone 10 and may be a personal digital assistant (PDA).

  INDUSTRIAL APPLICABILITY The present invention can be used for a vehicle display device for transmitting an incoming call of a mobile terminal such as a mobile phone or a PDA to a driver in general vehicles.

It is the figure which looked at the front from the driver's seat of the vehicle to which the display device for vehicles concerning a 1st embodiment of the present invention is applied. It is sectional drawing which shows the structure of the projection apparatus provided with the head-up display. It is sectional drawing which shows the structure of the projection apparatus provided with the head-up display different from FIG. It is a longitudinal cross-sectional view of the imaging means concerning 1st Embodiment. It is a block diagram which shows the structure of a control part. It is a front view which shows the head up display in which the image of the display window was displayed. It is a longitudinal cross-sectional view of the imaging means concerning 2nd Embodiment of this invention. It is a longitudinal cross-sectional view of the imaging means concerning 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Vehicle, 3 ... Imaging means, 5 ... Head-up display (vehicle display part), 10 ... Mobile telephone (mobile terminal), 10A ... Display window, 24 ... Control part, 30 ... Main part, 34 ... Control part, 35, 351, 352 ... Incoming call detection sensor

Claims (6)

An image pickup means for picking up at least incoming caller information among images displayed on the display window of the mobile terminal, and an in-vehicle display unit for displaying the incoming callee information picked up by the image pickup means,
The in-vehicle display unit is a head-up display arranged in a front view of a driver of the vehicle. The vehicle display device according to claim 1,
The vehicle display device, wherein the image pickup means picks up an image displayed in the display window of the portable terminal as it is. In the vehicle display device according to claim 1 or 2,
The image pickup means displays an incoming call detection sensor that detects that the mobile terminal has received an incoming call signal, and displays an image of the display window on the head-up display when the incoming call detection sensor detects reception of the incoming call signal. A vehicle display device comprising a control unit. The vehicle display device according to claim 3,
The incoming detection sensor is a light detection sensor that detects that the display window of the mobile terminal emits light when receiving the incoming signal, or / and a vibration detection sensor that detects that the mobile terminal vibrates, and / or the mobile terminal. A vehicle display device characterized by being a ringtone detection sensor that detects that a ringtone is generated. In the vehicle display device according to any one of claims 1 to 4,
The vehicle display device, wherein the imaging means includes a main body on which the portable terminal is arranged. In the vehicle display device according to any one of claims 3 to 5,
The control unit displays an image of the display window on the head-up display for a predetermined time after detecting reception of an incoming signal by an incoming detection sensor. .

Images