JP2004233701A - Display device - Google Patents

Abstract

An object of the present invention is to provide a display device capable of sufficiently producing a sense of depth and improving merchantability.
A first light emitting display (first light emitting display means) 1 for forming a first light emitting display image 17 and a second light emitting display (second light emitting display for forming a second light emitting display image 27) are provided. Of the light-emitting display means 2) and the first light-emitting display image 17 which is disposed between the first and second light-emitting displays 1 and 2 and transmits the first light-emitting display image 17 to the viewer side. A first luminous display in which the second luminous display hand device 2 forms a first luminous image 23 as predetermined information as a second luminous display image 27. And a second light-emitting display 22 forming a second light-emitting image 26 serving as a decorative design surrounding the first light-emitting image 21. The light-emitting surface 25a of the second light-emitting display 22 has a second light-emitting surface 25a. The light emitting display 21 is disposed at a position closer to the panel body 3 than the light emitting surface 21 a of the light emitting display 21.
[Selection diagram] Fig. 1

Description

[0001]
[Industrial applications]
The present invention relates to a display device such as an instrument device mounted on, for example, a dashboard of a vehicle and displaying various measurement information and notification / warning information, and more particularly to a display device that superimposes and displays a real image and a virtual image through a panel body.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in a display device of this type, a half mirror (panel body) covers the front of a first light emitting display (first light emitting display means) for displaying various measurement information in a pointer-like manner, and a line of sight of an observer. A second light-emitting display (second light-emitting display means) is disposed at a position in front of the half mirror that does not block light, and a first light-emitting display image formed by the first light-emitting display is transmitted through the half mirror. A display device of a type that displays a real image and a second light-emitting display image formed by the second light-emitting display device is reflected by a half mirror to display a virtual image (for example, see Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 9-257523
In the display device disclosed in the above publication, a TFT (thin film transistor) type liquid crystal panel for displaying navigation information is used as the second light emitting display device, and a virtual image composed of the navigation information is displayed on a real image for pointer-type display. .
[0005]
[Problems to be solved by the invention]
According to such a display device, by setting the optical path length from the half mirror to the second light emitting display to be longer than the optical path length from the half mirror to the first light emitting display, the virtual image composed of the navigation information can be displayed by the pointer. It can be displayed at a position deeper than the real image to be displayed, and this has the advantage of giving a sense of depth (three-dimensional feeling, floating feeling) to the display, but simply devising the optical path length of the real image and the virtual image, There is a limit to the depth that can be expressed.
[0006]
The present invention has been made in view of this point, and it is an object of the present invention to provide a display device capable of sufficiently producing a sense of depth and improving merchantability.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a first luminescent display means for forming a first luminescent display image, a second luminescent display means for forming a second luminescent display image, A panel body disposed between the light emitting display means for transmitting the first light emitting display image to the observer side and reflecting the second light emitting display image to the observer side; The display means forms, as the second light-emitting display image, a first light-emitting display member forming a first light-emitting image as predetermined information, and a second light-emitting image forming a decorative design surrounding the first light-emitting image. And a light-emitting surface of the second light-emitting display is disposed at a position closer to or farther from the panel than the light-emitting surface of the first light-emitting display. It is characterized by being performed.
[0008]
Further, according to the present invention, the second light-emitting display body includes a light source and a display body that receives the light from the light source and forms the second light-emitting image, wherein the display body is a light-transmitting member, a reflecting member, It is at least one of the transmission members.
[0009]
Further, the present invention is characterized in that the light source is set to be capable of emitting a plurality of colors, and is connected to control means for changing the emission color of the light source according to predetermined input information.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment will be described with reference to the attached drawings as an example in which a display device according to the present invention is applied to a vehicle display device.
[0011]
1 and 2 show a first embodiment of the present invention. FIG. 1 is a sectional view of a display device, and FIG. 2 is a front view showing a display image of the display device.
[0012]
In FIG. 1, the display device according to the present embodiment includes a first light-emitting display (first light-emitting display means) 1, a second light-emitting display (second light-emitting display means) 2, a panel body 3, , Eaves body 4, and control means 5 for controlling the operation of first and second light emitting displays 1 and 2.
[0013]
The first light emitting display 1 includes a driving device 11 that rotates a rotating shaft according to a measured value, for example, a vehicle speed, a pointer 12 that is rotated by the driving device 11, and a display plate 13 that is disposed behind the pointer 12. And a plurality of light sources 14 made of, for example, light-emitting diodes that illuminate the display plate 13 and the hands 12. The display plate 13 is provided with a plurality of index portions 13 a such as graduations, numerals, figures, and the like to be indicated by the hands 12. Have been.
[0014]
The pointer 12 is formed of a transparent synthetic resin material 12a capable of emitting light from the light source 14 and, for example, a black light-shielding synthetic resin material 12b, and the transparent synthetic resin material 12a exposed from the light-shielding synthetic resin material 12b is partially formed. The light-shielding synthetic resin material 12b covers the center of rotation of the transparent synthetic resin material 12b so as to expose the front end thereof.
[0015]
The display plate 13 is formed by printing light-shielding ink and light-transmitting ink on a light-transmitting substrate. For example, a ground portion is formed by black light-shielding ink, and the indicator portion 13a is formed by, for example, white light-transmitting ink. Is formed.
[0016]
When each light source 14 is turned on, as shown in FIG. 2, a first light emission image 15 of the hands 12 rotating and moving according to the measured value and a first light emission image 16 of the plurality of index portions 13 a corresponding to the hands 12 are formed. The light-emitting display image (pointer type display image) 17 is formed. In the display state, the light-emitting images 16 are arranged in an arc shape according to the movement trajectory of the light-emitting image 15 (the pointer 12). In addition, the emission color of each light source 14 is set, for example, to red for the pointer 12 and white for the indicator portion, and the illumination colors of the emission image 15 are red and the emission image 16 is white.
[0017]
The second light-emitting display 2 includes a first light-emitting display 21 and a second light-emitting display 22, and is disposed behind the eaves 4.
[0018]
The first light-emitting display body 21 is formed of a self-luminous display panel such as an EL (electroluminescence) panel or a VFD (fluorescent display tube), and has a disk shape in this example. Then, on the light emitting surface 21a, a first light emitting image 23 including, for example, a travel distance, an outside air temperature, and various kinds of alarm information is formed as predetermined information, which is transmitted from behind the panel body 3 and visually recognized by an observer (FIG. 2). Note that the first light emitting display 21 may be a light receiving type display panel such as a transmissive plate such as an LCD (liquid crystal) panel or a display plate 13, but requires a separate light source for illumination.
[0019]
The second light emitting display body 22 includes a light source 24 and a light transmitting member (display body) 25, and surrounds the first light emitting image 23 (may be a part of the first light emitting image instead of the entire circumference). A second luminescent image 26 serving as a decorative design is formed (see FIG. 2).
[0020]
The light source 21 includes, for example, a light emitting diode that emits blue light and a light emitting diode that emits red light. A plurality of light sources 21 are provided for each color so as to surround the light transmitting member 25. A light emitting diode capable of emitting light (for example, RGB light emission) may be used. In addition, these light sources 21 are arranged behind the eaves 4 such that their light emitting portions face the side peripheral surface of the light transmitting member 25.
[0021]
The translucent member 25 is made of a synthetic resin such as PC or PMMA, and has a planar shape of an annular shape surrounding the outer periphery of the first light emitting display body 21, but a wall surface facing the panel body 3 is curved in a bowl shape. And constitutes a light emitting surface 25a. Further, the wall surface facing the light emitting surface 25a is formed in a flat surface, and is provided with a diffusion processing surface 25b such as a graining process. Although a hole corresponding to the first light-emitting display body 21 is formed at a location corresponding to the first light-emitting display body 21, the hole may be covered to cover the first light-emitting display body 21.
[0022]
Then, when the light source 24 is turned on, the light is introduced into the inside from the side peripheral surface of the light transmitting member 25, is diffused on the diffusion processing surface 25b, and is irradiated to the panel body 3 through the light emitting surface 25a. As a result, when the second light emitting display 22 is viewed from the direction of arrow A in FIG. 1, for example, a blue or red gradation pattern in which the luminance near the light source 24 is high and the luminance gradually decreases as the distance from the light source 24 increases. It is reflected through the panel body 3 and is visually recognized as a second luminescent image 26 by an observer. At this time, since the light emitting surface 25a of the light transmitting member 25 is curved in a bowl shape, the second light emitting image 26 itself with a gradation pattern is visually recognized with a three-dimensional effect (depth effect).
[0023]
Further, in this example, a first light emitting image 23 formed by the first light emitting display 21 and a second light emitting image 26 formed by the second light emitting display 22 form a second light emitting display image 27. Is formed.
[0024]
Then, the projection position of the second luminescent display image 27 on the panel body 3 is formed such that the centers of the first and second luminescent image hands 23 and 26 correspond to the centers of the first luminescent display image 17, Thus, when the second light-emitting display image 27 is projected on the panel body 3, the first light-emitting image 23 is projected and displayed on the rotation center of the light-emitting image 15 of the pointer 12, and the second light-emitting image 26 is displayed. Are located between the first light-emitting image 23 and the light-emitting image 16 of the index portion 13a, and projected as a decorative virtual image having an annular gradation pattern surrounding the first light-emitting image 23 along the arrangement shape of the light-emitting images 16. Is displayed.
[0025]
At this time, the second light-emitting display image 27 is displayed from the first light-emitting display 1 to the panel body 3 so that the virtual image is displayed at a position deeper than the first light-emitting display image 17 when viewed from the observer. The optical path length of the second light emitting display image 27 from the second light emitting display 2 to the panel body 3 is set longer than the optical path length of the first light emitting display image 17 leading to. Further, even in the first and second light-emitting images 23 and 26 constituting the second light-emitting display image 26, the second light-emitting image 26 has a length corresponding to the optical path length of the first light-emitting image 23 with respect to the panel body 3. Since the second light emitting display 22 is disposed close to the panel 3 with respect to the first light emitting display 21 so that the optical path length with respect to the panel 3 is shortened, the first light emitting image 23 is the second light emitting image 23. The image is displayed at a position deeper than the light emission image 26.
[0026]
As a result, in this example, when the observer looks at the display device, the light-emitting image 15 of the pointer 12 → the light-emitting image 16 of the index portion 13a → the second light-emitting element 22 of the second light-emitting display 22 in the depth direction from the near side. The light-emitting image 26 is viewed in the order of the first light-emitting image 23 of the first light-emitting display 21.
[0027]
The first light emitting display 21 and the light source 24 are arranged on a common circuit board 28, and necessary electric power is supplied through the circuit board 28.
[0028]
The three panels are made of, for example, glass or a synthetic resin material colored in a dark color. In some cases, a reflective film made of a metal-based thin film or a light interference film may be applied to the surface of the panel body 3.
[0029]
As shown in FIG. 1, the panel body 3 covers the display surface (front surface) of the first light emitting display 1 when viewed from the observer's line of sight E, and the front surface thereof is the second light emitting display. The first light-emitting display image 17 is disposed between the light-emitting displays 1 and 2 so as to face the display surface of No. 2 and is transmitted to the observer side to be visually recognized as a real image. The light is reflected toward the observer and visually recognized as a virtual image. Note that the inclination angle of the panel body 3 with respect to the viewing direction E is set to, for example, 45 degrees. Further, in this case, the second light emitting display 2 is disposed in front of the panel body 3 (on the observer side) and at a position that is not directly visible to the observer.
[0030]
The eaves body 4 is made of, for example, a black synthetic resin material, and is provided with a light-shielding portion 41 that extends toward the viewer and faces the panel body 3, and an opening 42 that allows the second light-emitting display image 27 to pass toward the panel body 3. And
[0031]
The operation of the thus configured display device of the present embodiment is controlled by the control unit 5. That is, the control means 5 processes the input information (input signal) received through the input terminal 51, and outputs a command information (command signal) for operating the display device in accordance with the input information; And a driving unit 53 for receiving instruction information from the microcomputer 52 and operating the display device in accordance with the instruction information.
[0032]
The operation of the display device controlled by the control means 5 includes the operation of the pointer 12 through the driving device 11 and the operation of the first light-emitting display image 17 by turning on / off the light source 14 in the first light-emitting display 1. On the other hand, in the case of the second light-emitting display device 2, the first light-emitting image 23 is formed on the first light-emitting display member 21, and the display / non-display of the image itself is displayed. Display / non-display of the second light-emitting image by turning on / off the light source 24 in the light-emitting display body 22 can be mentioned. Here, an example of display control of the first and second light-emitting display images 17 and 27 will be described. It is assumed that a program for executing the display control of the first and second light-emitting display images 17 and 27 is stored in the microcomputer 52 in advance.
[0033]
First, when a power switch (key switch or ignition switch) (not shown) mounted on the vehicle is turned on, an operation signal (input information) of the power switch is input (received) to the microcomputer 52 through the input terminal 51. When receiving the operation signal, the microcomputer 52 causes the first and second light emitting displays 1 and 2 to form the first and second light emitting display images 17 and 27 in a predetermined order (sequence). Is output to the driving means 53, and in response to the command signal, the driving means 53 operates the first and second light emitting displays 1 and 2 to display the first and second light emitting display images 17 and 27. At this time, the light source 24 of the second light-emitting display body 22 emits blue light, and forms a blue second light-emitting image 26.
[0034]
At this time, the sequence control performed by the microcomputer 52 includes (1) formation display of the first light emission display image 17 (simultaneous lighting of the light source 14) → (2) formation formation display of the second light emission image 26 (lighting of the light source 24) ) → (3) Formation and display of the first luminescent image 26 (start of information display by the first luminescent display 21) (the number in parentheses at the beginning indicates the order). By performing such a sequence control, it is possible to display each display image in a staggered manner from the near side to the far side, and to provide the observer with fun and novelty at the power switch on timing. can do. When starting display with regularity according to the display position of each display image in this way, the display order of each display image is set to reverse, and the image displayed on the back side is shifted toward the front side from the image displayed on the back side. The time difference may be displayed toward the displayed image. In addition, it is possible to provide the observer with fun and novelty by simply displaying each displayed image in a staggered manner, without giving such a constant regularity. In this case, the staggered display in an arbitrary order is possible. Is possible.
[0035]
Although not described in detail here, it is also possible to set each display image to be non-displayed with a fixed or predetermined time difference (order) even when the power switch is turned off.
[0036]
Next, when a state in which warning information should be displayed to the observer occurs (for example, when a signal for detecting a low fuel state is received by the microcomputer 52 through the input terminal 51 as input information, or when a fuel sensor, a mileage sensor, or an injection When it is determined that the microcomputer 52 is in the low fuel state according to the input information from the amount sensor or the like), the control means 5 causes the first light emitting display 21 to display a text message or mark (not shown) indicating the content of the alarm. Is displayed, and the color of the light source 25 of the second luminous body 22 which has been emitting blue light is changed to red, thereby changing the color of the second luminescent image 26 to pay attention to the observer. To encourage you.
[0037]
The timing for changing the color of the second light-emitting image 26 may be based on the processing result of the input information by the microcomputer 52, and is not limited to the time of an alarm or the like.
[0038]
As described above, the display device according to the present embodiment forms the first light-emitting display (first light-emitting display means) 1 for forming the first light-emitting display image 17 and the second light-emitting display image 27. A second light-emitting display (second light-emitting display means) 2 and a first light-emitting display image 17 disposed between the first and second light-emitting displays 1 and 2 for transmitting to the observer side And a panel body 3 for reflecting the second light-emitting display image 27 toward the observer, and the second light-emitting display device 2 serves as the second light-emitting display image 27 as a first light-emitting image as predetermined information. A first light emitting display 21 forming a first light emitting image 23 and a second light emitting display 22 forming a second light emitting image 26 forming a decorative design surrounding the first light emitting image 21; The light emitting surface 25a of the display 22 is disposed at a position closer to the panel body 3 than the light emitting surface 21a of the first light emitting display 21. As a result, the first light emitting image 23 for displaying information is displayed at a position deeper than the second light emitting image 26 forming the decorative design, so that the two light emitting images 23 and 26 have a perspective difference. Accordingly, a sense of depth can be sufficiently produced, and the merchantability can be improved.
[0039]
Note that, in the present embodiment, the case where the first light emission image 23 is displayed on the back side and the second light emission image 26 is displayed on the front side is shown. However, which one is displayed on the back side (front side) is arbitrary. By arranging at least a part of the light emitting surface 25a of the second light emitting display 22 at a position closer to or farther from the panel body 3 than the light emitting surface 21a of the first light emitting display 21, the two light emitting images 23 are provided. , 26 may have a perspective difference.
[0040]
In the present embodiment, the second light-emitting image 26 is set to an arc-shaped gradation pattern, but any design can be adopted as long as it functions as a decorative design.
[0041]
Further, in the present embodiment, the case where the display for forming the second light-emitting image is formed of the light transmitting member 25 has been described. However, the material and the structure of the display are arbitrary, and specific examples thereof will be described later. This is as shown in the third embodiment.
[0042]
Further, according to the present invention, the color of the second light-emitting image 26 is changed by setting the light source 24 to be capable of emitting a plurality of colors and connecting to the control means 5 for changing the light-emitting color of the light source 24 according to predetermined input information. In addition to producing novelty, it is possible to improve the alerting performance.
[0043]
FIG. 3 is a cross-sectional view showing a modified example of the second light emitting display as a second embodiment of the present invention. In this embodiment, a reflection member 250 is applied as a display. That is, the reflecting member 250 is made of, for example, a bowl-shaped synthetic resin material having a reflecting color (for example, white), and reflects light from the light source 24 on its inner surface to form the light emitting surface 250a. A second light-emitting image 26 similar to that of the embodiment is formed (however, the shade of color is opposite to that of the first embodiment, and the light first light-emitting display body 21 side is darker, and gradually becomes lighter as it goes away from it). Things. In this case, the light-emitting surface 250a of the reflection member 250 has an end on the panel body 3 side closer to the panel body 3 than the light-emitting surface 21a of the first light-emitting display body 21, and an opposite end has a first end. Of the light-emitting display body 21 is located at a position deeper than the light-emitting surface 21a of the light-emitting display body 21 (the side opposite to the panel body 3 side), so that the two light-emitting images 23 and 26 have a perspective difference. . In FIG. 3, reference numeral 6 denotes a white frame, which includes a reflection portion that reflects light from the light source 24 toward the reflection member 250 (see a portion facing the light source 24). Further, a decorative design may be attached to the reflecting member 250 by printing or the like.
[0044]
According to this embodiment, the same effect as that of the first embodiment can be expected. In addition, in the present embodiment, the display member is the reflection member 250, so that weight reduction and cost reduction can be achieved.
[0045]
FIG. 4 is a cross-sectional view showing a modified example of the second light emitting display as the third embodiment of the present invention. In this embodiment, a transmissive member 251 is applied as the display. That is, the transmissive member 251 is made of the same light transmissive plate material as the display panel shown in the first embodiment, and has a light emitting surface 251a on which a decorative design in which, for example, a starry sky is imaged is printed or transferred. have. Then, when the light source 24 is turned on, the transmission member 251 is illuminated from behind, and a second light-emitting image 26 is formed in the image of a starry sky.
[0046]
According to this embodiment, the same effects as those of the first embodiment can be expected, and since a free decorative design can be formed by printing or transfer, the degree of freedom of the decorative design can be improved.
[0047]
【The invention's effect】
As described in detail above, according to the present invention, it is possible to provide a display device that can achieve an intended purpose, sufficiently produce a sense of depth, and improve merchantability.
[Brief description of the drawings]
FIG. 1 is a sectional view of a display device according to a first embodiment of the present invention.
FIG. 2 is a front view showing a display image of the display device in the embodiment.
FIG. 3 is an essential part cross-sectional view showing a second embodiment of the present invention.
FIG. 4 is an essential part cross-sectional view showing a third embodiment of the present invention.
[Explanation of symbols]
1 First light-emitting display (first light-emitting display means)
2 Second light emitting display (second light emitting display means)
3 Panel body 4 Eaves body 5 Control means 6 Frame 11 Drive device 12 Pointer 12a Transparent synthetic resin material 12b Light-shielding synthetic resin material 13 Display plate 13a Index unit 14 Light source 15, 16 Light emission image 17 First light emission display image 21 First Light-emitting display body 22 First light-emitting display body 23 First light-emitting image 24 Light source 25 Translucent members 25a, 250a, 251a Light-emitting surface 25b Diffusion-treated surface 26 Second light-emitting image 27 Second light-emitting display image 28 Circuit board 41 Light shielding part 42 Opening part 250 Reflecting member 251 Transmitting member A Arrow E Viewing direction

Claims (3)

First light-emitting display means for forming a first light-emitting display image;
Second light emitting display means for forming a second light emitting display image;
A panel disposed between the first and second light emitting display means for transmitting the first light emitting display image to the observer side and reflecting the second light emitting display image to the observer side. ,
A second light emitting display means for forming, as the second light emitting display image, a first light emitting image as predetermined information, and a second light emitting display body for forming a decorative design surrounding the first light emitting image; And a second light-emitting display member that forms a light-emitting image of
A display device, wherein at least a part of the light emitting surface of the second light emitting display is disposed at a position closer to or farther from the panel body than the light emitting surface of the first light emitting display. The second light-emitting display body includes a light source and a display body that receives the light from the light source and forms the second light-emitting image, wherein the display body is a light-transmitting member, a reflecting member, or a transmitting member. The display device according to claim 1, wherein the display device is at least one. The display device according to claim 1, wherein the light source is set to be capable of emitting a plurality of colors, and connected to control means for changing a light emission color of the light source according to predetermined input information.

Images