JPH09257523A - Display device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device for vehicle having the conformity feeling on design by integrally forming an analog type meter display unit and a graphic display unit, which uses a TFT type liquid crystal image display, with each other. SOLUTION: Full color printing is performed to a letter plate 7 of an analog type meter display unit 3 formed with a scale for car speed and engine speed so that the similar color is used for the background color of the letter plate 7 and the background color of a display image 22 of a TFT type liquid crystal image display 9 and the display frame color. A half mirror 5 is arranged between the analog type meter display unit 3 and a graphic display unit 4 so as to project the graphic display of the TFT type liquid crystal image display 9 as a virtual image in a virtual image display unit 23. With this structure, a virtual image graphic-displayed by the TFT type liquid crystal image display 9 and a display image analog-displayed by the analog type meter display unit 3 can be overlapped with each other for recognition, and a display device 1 for vehicle having the collectiveness on design can be provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular display device incorporating a TFT type liquid crystal display device.

[0002]

2. Description of the Related Art Conventionally, with the widespread use of car navigation systems and car televisions, there has been a demand for a vehicle display device having a TFT type liquid crystal display device built in a meter as an item for graphic display. Although many such display devices for vehicles have been exhibited at exhibitions and the like, it is too expensive for the meter panel to display the entire meter display portion of the display device for vehicles as a graphic,
It has not yet been put to practical use.

Therefore, as shown in FIG. 4, a central portion of a dial plate 103 of an analog type meter display section 102 for analog display of a speedometer and an engine speed of a TFT type liquid crystal display device 101 having a size of 4 to 5 inches. Fit in the TFT
A vehicle display device 100 in which an image (display image) 104 of a liquid crystal display device 101 is displayed graphically is under study.

[0004]

However, in the above vehicle display device 100, the TFT type liquid crystal display device 1 is used.
Since the display frame 105 of 01 appears clearly in the central portion of the dial plate 103 of the analog type meter display unit 102, there is a problem that the sense of unity is impaired in design and the aesthetic appearance is deteriorated, and it is not yet practically used. Is.

[0005]

It is an object of the present invention to display the background color of information displayed on the first display section using a color printed dial and the information displayed on the second display section using a liquid crystal display device. An object of the present invention is to obtain a vehicular display device having a one-piece design by creating the same color data as the background color.

[0006]

According to the invention as set forth in claim 1, it is in contact with a second display section using a liquid crystal display device.
By making the color data of the color printing applied to the dial of the first display unit the same color as the background color of the liquid crystal display device, T
The display frame of the FT-type liquid crystal display device does not appear on the dial, becomes unclear, and has the effect of providing a vehicular display device with a sense of unity in design.

According to the second aspect of the invention, the information displayed on the first display section or the second display section is converted into a virtual image at the position of the second display section or the first display section by the half mirror. By projecting, the virtual image of the liquid crystal display device can be overlaid and recognized on the background of the dial plate, so that an effect of providing a vehicle display device with a more integrated feeling can be obtained.
According to the third aspect of the present invention, the background of the dial of the first display section emits light, so that it is possible to obtain an effect that the vehicle display apparatus has a more integrated feeling.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION

[Structure of Embodiment] FIGS. 1 to 3 show an embodiment of the present invention. FIG. 1 is a view showing a vehicle display device, and FIG. 2 is a view showing a display image of a meter according to the present invention. 3 is a diagram showing a display image when a TFT type liquid crystal image display is incorporated in a vehicle display device.

The vehicle display device 1 is attached to an instrument panel 2 provided in the front of a vehicle compartment of the vehicle, and has an analog meter display portion 3 for analog display of vehicle speed, engine speed, etc. It has a graphic display unit 4 for graphically displaying an image and a half mirror 5 obliquely attached between the analog type meter display unit 3 and the graphic display unit 4.

The analog type meter display section 3 is the first display section of the present invention, and includes an instrument main body 6 such as a speedometer and an engine tachometer, a dial 7 with numbers, letters and designs, and an instrument. It is composed of a case 8 and the like that accommodates the main body 6.

The instrument main body 6 is fixed to the bottom surface of the case 8 by a screw (not shown), and a dial 7 is attached to the upper end surface thereof. A rotary shaft 10 is provided so as to project in the central portion of the instrument body 6, and a pointer (pointer) 11 is attached to the rotary shaft 10 for instructing a scale provided on the dial 7 according to the vehicle speed or the engine speed. Has been.

The dial 7 is made of a light-transmitting resin such as acrylic resin having a thickness of 0.5 mm, and is made of a transparent resin and a light source (straight tubular cold cathode tube) 12 attached to the back side of the dial 7. The light guide (prism) 13 can emit light in the pattern and background. The background color of the dial 7 is colored in specific color data by full-color printing using the three primary colors of red, blue and yellow. The dial 7 has a scale indicating the vehicle speed, a scale indicating the engine speed, a seat belt warning light, a half door warning light, a brake warning light, an airbag warning light, an exhaust temperature warning light, a main beam indicator light, and a turn signal. Patterns such as indicator lights are printed.

The case 8 is made of a resin such as polypropylene resin or ABS resin, and is formed in a box shape together with the wind plate 14 attached to the front side. The front side of the wind plate 14 is open.
A half mirror 5 is attached between the opened wind plate 14 and the frame-shaped cluster 15 so as to be inclined with respect to the line of sight of the driver. In addition, the cluster 15 is for eliminating the face image of the driver and for preventing light from the outside from hitting the dial 7.

The graphic display unit 4 is the second display unit of the present invention, and is a 4 to 5 inch TFT type liquid crystal display device (hereinafter referred to as a TFT type liquid crystal display device) for graphically displaying a display image such as a car navigation image or a television image to the driver. A TFT type liquid crystal image display) 9 is used. The TFT type liquid crystal image display 9 is a cluster 1 on the instrument panel 2 side.
It is being fixed to the case 20 attached inside 5.

This TFT type liquid crystal image display 9 is
It is arranged above the half mirror 5, and as shown in FIG. 3, the display image 22 is displayed in a rectangular display frame 21. Further, the background in the display frame 21, the graphic display of the fuel gauge, the digital display of the shift position, and the digital display of the trip meter are emitted by a light source (not shown).

Since the dial 7 is full-color printed, the pattern applied to the surface of the dial 7 can be easily created by a personal computer. Then, in this embodiment, the background color of the dial plate 7, the background color of the display image 22 of the TFT type liquid crystal image display 9 and the color of the display frame 21 are similar colors (the same color such as blue and black). , I am creating a picture with a personal computer.

The half mirror 5 is, as shown in FIG.
It is a semi-transparent mirror that transmits light in a direction parallel to the line of sight of the driver and reflects light in a direction inclined with respect to the line of sight of the driver. This half mirror 5 is a TFT type liquid crystal image display 9
This is for projecting the display image of (3) on the central portion of the dial 7 as a virtual image. The broken line portion of FIG. 1 is a virtual image display unit 2 on which a virtual image of the display image of the TFT type liquid crystal image display 9 is projected.
3, the virtual image display unit 23 is provided in the central portion of the dial 7 in this example.

[Operation of the Embodiment] Next, the operation of the vehicle display device 1 of this embodiment will be briefly described with reference to FIGS. 1 to 3.

When the engine is started by turning the key switch to turn on the light source 12 or the like of the vehicular display device 1 to make the analog meter display section 3 emit light, the driver recognizes the vehicle speed, the engine speed and the like. When the display image 22 is displayed on the TFT type liquid crystal image display 9, the display image 22 of the TFT type liquid crystal image display 9 is projected as a virtual image on the virtual image display section 23 by the half mirror 5 as shown in FIG. .

As a result, the driver displays the virtual image (graphic display) of the display image 22 of the TFT type liquid crystal image display 9 on the central portion of the dial 7 of the analog type meter display unit 3 and the analog type meter of the analog type meter display unit 3. The display (vehicle speed, engine speed, etc.) can be recognized in an overlapping manner.

As described above, in the vehicular display device 1, the background color of the dial 7, the background color of the display image 22 of the TFT type liquid crystal image display 9 and the color of the display frame 21 are similar colors. The pattern is created with a personal computer so that the background color of the dial 7 emits light.
The color of the display frame 21 of the T-type liquid crystal image display 9 and the background color of the display image 22 and the background color of the dial 7 can be made the same.

As a result, the display frame 21 of the TFT type liquid crystal image display 9 projected as a virtual image on the central portion of the dial 7 of the analog type meter display unit 3 becomes the same as the background color of the dial 7, so that the display frame 21 is displayed. It is possible to recognize each display image of the vehicular display device 1 without worrying about. Therefore, the vehicular display device 1 is provided in which the graphic display using the TFT type liquid crystal image display 9 and the analog display (meter display) using the analog type meter display unit 3 can be recognized in an overlapping manner, and the design has a sense of unity. can do.

[Modification] In this embodiment, the present invention is applied to the vehicle display device 1 as a meter display device for allowing the driver to recognize the driving state of the vehicle, but the present invention allows the vehicle occupant to recognize the time. It may be applied to a vehicle clock device. In this case, the first display section using the dial with analog scale of the timepiece and the T for performing graphic display
And a second display section using a liquid crystal display device such as an FT type liquid crystal image display 9. Further, the present invention may be applied to an integrated air-conditioner display unit and a car navigation system for recognizing the air-conditioning state of the vehicle compartment.

In this embodiment, the analog meter display section 3 is used as the first display section, but a digital meter display section may be used as the first display section. A water temperature gauge, a hydraulic pressure gauge, an oil temperature gauge, a voltmeter, and an ammeter may be used as the vehicle instrument.

In this embodiment, a display image such as a car navigation image or a television image is displayed graphically by the TFT type liquid crystal image display 9, but the liquid crystal display device such as the TFT type liquid crystal image display 9 may be used for the vehicle speed and the engine speed. A display image such as the above may be displayed graphically.

In this embodiment, the virtual image of the TFT type liquid crystal image display 9 is projected onto the central portion of the dial 7, but the virtual image of the TFT type liquid crystal image display 9 is projected to the corner portion of the dial 7 or the speedometer. Alternatively, it may be projected on the inside of the scale of the engine tachometer. Although the TFT type liquid crystal image display 9 is used as the liquid crystal display device in this embodiment, a liquid crystal display device such as a MIM type or DSTN type liquid crystal image display may be used.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a vehicle display device (embodiment).

FIG. 2 is a front view showing a display image of the meter according to the present invention (embodiment).

FIG. 3 is a front view showing a display image when a TFT type liquid crystal image display is incorporated in a vehicle display device (Example).

FIG. 4 is a front view showing a vehicle display device (conventional example).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle display device 3 Analog type meter display part (1st display part) 4 Graphic display part (2nd display part) 5 Half mirror 7 Dial 9 TFT type liquid crystal image display (liquid crystal display device) 21 Display frame 22 Display image 23 Virtual image display section

Claims (3)

[Claims] 1. A vehicle display device comprising: a first display portion for displaying information by using a color-printed dial plate; and a second display portion for displaying information by using a liquid crystal display device. The display device for a vehicle is characterized in that the first display unit sets color data of color printing in contact with the second display unit to a color similar to a background color of the liquid crystal display device. 2. The vehicular display device according to claim 1, wherein the vehicular display device includes the first display portion or the second display portion between the first display portion and the second display portion. A half mirror is arranged to allow a vehicle occupant to recognize the information displayed on the second display as a virtual image, and the information displayed on the first display and the information displayed on the second display are separated. A display device for a vehicle, which is displayed in an overlapping manner. 3. The vehicle display device according to claim 1, wherein the dial plate of the first display section has a background that emits light.