JP2000181383A - On-vehicle information display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an on-vehicle information display device capable of transmitting road traffice conditions or the like to other vehicles by itself in real time. SOLUTION: In this on-vehicle information display device provided with a control panel 3 capable of inputting information, a CPU for controlling the display of the inputted information and an LCD(liquid crystal display) 4 for displaying the display-controlled information, an LCD for back direction or an LCD for side direction is provided so that the installation position is changable in the side face or the rear side of a vehicle so as to display the information toward the outside of the vehicle. Real-time information can be displayed with respect to the backward vehicle on the same lane or the sideward and the backward vehicle of a different lane by displaying character information on the LCD for back direction or the LCD for side direction and the real-time information can be obtained in the sideward vehicle or the backward vehicle in accordance with this display.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle information display device which is suitably applied to, for example, display of road traffic information of an automobile.

[0002]

2. Description of the Related Art Conventionally, road traffic information is obtained by referring to a road sign provided at a predetermined table position on a main road or receiving a traffic condition from an on-board radio. I was Also, Japanese Patent Application Laid-Open No. 10-1
Japanese Patent No. 98889 discloses a bidirectional communication device, in-vehicle communication devices mounted on the front and rear of a vehicle to sequentially transmit traffic information to a rear vehicle, and also transmits position information, elapsed time, and vehicle speed information of the rear vehicle to the front. A traffic information collection and provision device is disclosed.

[0003]

However, the conventional method of grasping traffic conditions has a disadvantage that it is not possible to grasp in real time the traffic conditions that change every moment.

[0004] In addition, there is another inconvenience that when the radio traffic condition cannot be received on a road without a road sign, the traffic condition cannot be grasped.

[0005] Further, there is an inconvenience that it is not possible to transmit such information when it is desired to inform other vehicles of the traffic situation or to disclose their own intentions due to a breakdown or the like.

[0006] In the device described in Japanese Patent Application Laid-Open No. Hei 10-198889, it is necessary to provide a communication device on the road.
There is a disadvantage that information cannot be directly transmitted to other vehicles by itself.

The present invention has been made in view of the above circumstances, and has as its object to provide an in-vehicle information display device that transmits road traffic conditions and the like to other vehicles in real time.

[0008]

According to the present invention, there is provided an on-vehicle information display device comprising: an input unit for inputting information; a control unit for controlling display of the information input by the input unit; Display means for displaying information controlled so as to be displayable, wherein the display means is installed on a side or rear side of the vehicle so as to be changeable so as to display information toward the outside of the vehicle. Things.

According to such an in-vehicle information display device, the following operations are performed. The operator places input means in the vehicle and presses each key on the input means to input arbitrary character information. The key signal input by the input means is supplied to the control means.

The control means converts a key signal inputted by the input means into a recognizable character signal, generates a control signal for displaying a character signal corresponding to the character on the display means, and generates a control signal for the display means. A drive signal for causing the display segment to emit light so as to form a character is generated.
The drive signal generated by the control means is supplied to the display means.

[0011] Characters relating to traffic information are displayed on the rear or side display means. By displaying characters related to traffic information on the rear or side display means in this way, real-time character information related to traffic information can be displayed for vehicles behind the same lane or vehicles next to and behind different lanes. Can be displayed.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram illustrating a configuration of the on-vehicle information display device according to the present embodiment.
In FIG. 1, the on-vehicle information display device of the present embodiment includes a battery 1 for supplying a power supply voltage to the device, a board 2 forming an electric circuit for performing a control operation, and an operation panel 3 for inputting character information and the like. It comprises a display LCD (liquid crystal display) 4 for displaying character information using liquid crystal.

FIG. 2 is a block diagram showing a specific configuration of the on-vehicle information display device of the present embodiment. The parts corresponding to those in FIG. 1 are denoted by the same reference numerals. 2, a cigarette lighter battery 14 is a power supply terminal for detachably supplying power to a cigarette lighter of a vehicle, and corresponds to the battery 1 shown in FIG. The operation panel 3 has the same type and arrangement of keys as a general-purpose mobile phone, and can use the keys of a normal mobile phone in addition to the dedicated operation panel. The specific arrangement of the LCD 4 will be described later.

The substrate 2 is connected to a power supply 1 supplied to a common power supply terminal of the substrate via a cigarette lighter battery 14.
0 and a CPU (Central Processing Unit) 1 for controlling display operation of information input by the operation panel 3 on the LCD 4.
1, an operation panel ID (identification) circuit 12 for converting a key signal corresponding to information input from the operation panel 3 into a character signal recognizable by the CPU 11, and a display signal on the LCD 4 based on a control signal of the CPU 11. L for generating drive signal
And a CD driver 13.

FIG. 3 is a diagram showing a use state of the on-vehicle information display device of the present embodiment. FIG. 3 shows an example in which the LCD is arranged on the side of the automobile or inside the window at the rear, with the display surface facing outward.

In FIG. 3, for example, a rectangular rear LCD 21 having a length corresponding to the width of the rear window of the automobile 20 or a length corresponding to the width thereof is disposed inside both side windows of the automobile 20. The rectangular side LCD 22 is installed so that the installation position can be changed. Thus, the rear LCD 21 or the side L
By installing the CD 22 in the automobile 20, real-time information can be displayed for vehicles behind the same lane or vehicles laterally and behind different lanes.

The operation of the thus-configured on-vehicle information display device of the present embodiment will be described. The operator arranges the operation panel 3 in the vicinity of the cigar lighter or the dashboard, for example, and presses each key on the operation panel 3 to input any character information such as hiragana, katakana or kanji. . The key signal input from the operation panel 3 is supplied to the substrate 2.

Then, the operation panel ID circuit 12 in the board 2 shown in FIG. 2 converts the key signal input from the operation panel 3 into a character signal recognizable by the CPU 11.
That is, since the number of keys on the operation panel 3 is reduced and a plurality of characters can be input using one key, a plurality of characters can be input to the same key signal by using the shift key or the mode key together. The signals are made to correspond. Therefore, the operation panel ID circuit 12 generates a plurality of character signals corresponding to the same key signal depending on whether the shift key or the mode key is pressed.

The character signal converted by the operation panel ID circuit 12 is supplied to the CPU 11. The CPU 11 generates a control signal for causing the LCD 4 to display a character signal corresponding to the character. The control signal generated by the CPU 11 is L
It is supplied to the CD driver 13. The LCD driver 13 generates a drive signal for causing the display segments of the LCD 4 to emit light so as to form characters. The drive signal generated by the LCD driver 13 is supplied to the LCD 4.

As shown in FIG. 3, the rear LCD 2
For example, characters relating to traffic information such as “this jiko” are displayed on the LCD 22 or the side LCD 22. By displaying characters related to traffic information on the rear LCD 21 or the side LCD 22 in this manner, real-time character information related to traffic information can be displayed for vehicles behind the same lane or vehicles next to and behind different lanes. Can be displayed.

In the above embodiment, the LCD 4
Although the example in which the character information to be displayed on the control panel 3 is directly input through the operation panel 3 is shown, the present invention is not limited to this. Alternatively, the information may be registered so as to be readable in the unit. By doing so, just by keying in the short number on the operation panel 3,
The registered standard characters are read from the storage unit of the CPU 11 and can be displayed on the LCD 4.

Further, in the above-described embodiment, the LCDs 21 and 22 installed on the side or rear of the vehicle are provided horizontally long corresponding to the widths of the windows on the side or rear of the vehicle, and characters displayed on the LCDs 21 and 22 are displayed. Although the example in which the information is directly displayed has been described, the present invention is not limited to this, and the character information may be scrolled and displayed according to the information amount of the displayed character. By doing so, the LCD
Even if it is desired to display character information larger than the horizontal width of 21 or 22, a large amount of character information can be displayed by sequentially scrolling the character information in the horizontal direction.

In the above embodiment, the LCD 4
Shows only traffic information in the, but other information,
For example, the user's own advertisement information may be displayed.

The in-vehicle information display apparatus according to the present embodiment has an operation panel 3 as input means for inputting information, a CPU 11 as control means for controlling display of information input by the input means, 4 as display means for displaying information controlled to be displayable by the means
And the display means is installed so that the installation position can be changed on the side or rear of the vehicle so as to display information toward the outside of the vehicle, so that the rear as the display means for the rear or side is provided. By displaying the information on the LCD 21 or the side LCD 22, it is possible to display real-time information on a vehicle behind the same lane or a vehicle on the side and behind a different lane. Real-time information can be obtained from the side or rear vehicle.

In the above-described embodiment, the on-vehicle information display device inputs arbitrary character information from the inside of the vehicle using the operation panel 3 as input means, and transmits the character information to the LCD 4 as display means. Since the display is performed, the rear LC as the display means for the rear or the side is used.
The D21 or the side LCD 22 can display real-time character information that can be easily recognized immediately for a vehicle behind the same lane or a vehicle behind and behind a different lane. The vehicle on the side or behind can acquire real-time character information that can be easily recognized immediately.

Further, in the above-described vehicle-mounted information display device, in the above description, predetermined fixed characters of the character information by the operation panel 3 as input means are stored in the CPU 11 as control means in correspondence with the abbreviated numbers. Since the registration is made to be readable in the section, the standard characters registered from the storage section of the control means can be read out and displayed on the display means only by inputting the abbreviated number using the input means. The input operation can be easily performed.

Further, in the above-mentioned vehicle-mounted information display apparatus of the present embodiment, since the operation panel 3 as the input means uses the operation panel of a general-purpose mobile phone in the above description, the number of keys is reduced by using general-purpose small keys. A large number of character information can be input by number.

Also, in the above-described vehicle-mounted information display device of the present embodiment, the power for displaying information on the LCD 4 as the display means is supplied from the vehicle battery 1 (cigar lighter battery 14). ,
There is no need to provide an additional power supply, and it is easy to attach and detach, and the device can be downsized.

Further, the on-vehicle information display device according to the present embodiment, as described above, uses the rear LCD 21 or the side LCD as display means installed on the side or rear of the vehicle.
Numeral 22 is provided horizontally long according to the width of the side or rear window of the vehicle, and the information is scrolled and displayed according to the amount of information, so that character information larger than the width of the display means is displayed. Even when desired, a large amount of character information can be displayed by sequentially scrolling the character information in the horizontal direction.

Further, the on-vehicle information display device according to the present embodiment has the above-described rear LCD 21 as display means.
Alternatively, the information displayed on the side LCD 22 is traffic information for a vehicle on the side of or behind the vehicle. Therefore, by sequentially transmitting the traffic information to the vehicle on the rear or side, traffic congestion can be reduced. Can be alleviated.

[0031]

According to the present invention, there is provided an in-vehicle information display device, comprising: input means for enabling input of information; control means for controlling information input by the input means to be displayed; and control for enabling display by the control means. Display means for displaying the obtained information, and the display means is installed so as to be able to change the installation position on the side or rear of the vehicle so as to display the information toward the outside of the vehicle. Or, by displaying the information on the display means for the side, it is possible to display real-time information on the vehicle behind the same lane or the vehicle on the side and behind the different lane, correspondingly, This has the effect that real-time information can be obtained from the side or rear vehicle.

Further, in the above-mentioned vehicle information display apparatus of the present invention, in the above description, arbitrary character information is inputted from inside the vehicle using the input means, and the character information is displayed on the display means. The display means for the rear or side can display real-time character information that is easily recognizable immediately for a vehicle behind the same lane or a vehicle behind and behind a different lane. Correspondingly, there is an effect that real-time character information that can be easily recognized can be immediately acquired by the vehicle on the side or behind.

[0033] In the above-mentioned vehicle information display apparatus of the present invention, the predetermined fixed characters of the character information by the input means are readably registered in the storage unit of the control means in correspondence with the abbreviated number. With this configuration, simply by inputting the abbreviated number using the input unit, the standard characters registered in the storage unit of the control unit can be read out and displayed on the display unit, and the input operation can be easily performed. It has the effect of being able to do so.

Further, in the above-mentioned on-vehicle information display apparatus of the present invention, since the input means uses an operation panel of a general-purpose mobile phone, a large number of character information can be obtained with a small number of keys using general-purpose small keys. Is input.

Also, in the above-mentioned vehicle-mounted information display device of the present invention, the power for displaying the information on the display means is supplied from the battery of the vehicle, so that there is no need to provide another power source. In addition, there is an effect that the device can be easily attached and detached and the device can be downsized.

In the above-mentioned vehicle-mounted information display device, the display means installed on the side or rear of the vehicle is provided to be horizontally long corresponding to the width of the side or rear window of the vehicle. Since the information is scrolled and displayed according to the information amount,
Even when it is desired to display character information that is larger than the horizontal width of the display means, the character information can be scrolled sequentially in the horizontal direction to display a large amount of character information.

[0037] In the above-mentioned vehicle-mounted information display device, the information displayed on the display means is traffic information for a side or rear vehicle of the vehicle. By transmitting the traffic information to the other vehicle, the traffic congestion can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an in-vehicle information display device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a specific configuration of the on-vehicle information display device according to one embodiment of the present invention.

FIG. 3 is a diagram illustrating a use state of the on-vehicle information display device according to the embodiment of the present invention;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Battery, 2 ... Board, 3 ... Operation panel, 4 ... Display LCD, 10 ... Power supply, 11 ... CPU, 12 ... Operation panel ID circuit, 13 ... LCD driver, 14 ... Cigarette lighter battery, 20 ... Car, 21 … Backward LCD,
22 ... side LCD

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3K039 BA04 LA01 LB08 LB09 LC03 LC05 LD07 LE02 LE16 MC08 MD15 5C094 AA56 AA60 BA43 CA14 HA10

Claims (7)

[Claims] 1. An input means for inputting information, a control means for controlling display of information input by the input means, and a display means for displaying information controlled to be displayable by the control means. The in-vehicle information display device, characterized in that the display means is installed on a side or rear side of the vehicle so as to be able to change an installation position so as to display information toward the outside of the vehicle. 2. The in-vehicle information display device according to claim 1, wherein arbitrary character information is input from inside the vehicle using the input means, and the character information is displayed on the display means. In-vehicle information display device. 3. The on-vehicle information display device according to claim 2, wherein a predetermined fixed character of the character information by the input means is registered in a storage part of the control means in a readable manner in correspondence with an abbreviated number. An in-vehicle information display device characterized in that: 4. The in-vehicle information display device according to claim 2, wherein the input means uses an operation panel of a general-purpose mobile phone. 5. The in-vehicle information display device according to claim 1, wherein a power supply for displaying the information on the display means is supplied from a battery of the vehicle. 6. The on-vehicle information display device according to claim 1, wherein the display means installed on a side surface or a rear side of the vehicle is provided to be horizontally long corresponding to a width of a window on a side surface or a rear side of the vehicle. An in-vehicle information display device, wherein the information is scrolled and displayed according to the amount of information. 7. The on-vehicle information display device according to claim 1, wherein the information displayed on the display means is traffic information for a side or rear vehicle of the vehicle. Display device.