JP3129147B2 - Display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device mounted on, for example, a vehicle, and more particularly to a door indicator for displaying a door open / closed state, a shift indicator for displaying a shift position, and a drive for displaying power distribution of wheels. Notification by means of lighting, such as a wheel indicator (indicator)
The present invention relates to a display device that performs display and illumination display of an indicator itself.

[0002]

2. Description of the Related Art As a prior art of this type of display device, for example, one disclosed in Japanese Utility Model Laid-Open No. 5-64884 is known. As shown in FIG. 6 and FIG. 7, this display device has “P, R, N, D, 2,
L ", a display panel 44 having a display design section 43 composed of a symbol design section 41 and a display frame 42 surrounding each of the symbol design sections 41 is provided. Behind the display board 44, a symbol design section 41 is provided. A light guide plate 46 made of a transparent material having a surface on which a transparent colored portion 45 corresponding to the light guide plate 46 is formed, a case 47 is arranged behind the light guide plate 46, and a light source 48 for illumination is provided therein, and a light source 48 for illumination is provided. A plurality of lighting rooms 50 defined by a partition wall 49 are provided at a part of the case 47 adjacent to the light source 48, and the lighting room
A notification light source 51 is arranged inside the lighting room 50 and the light guide plate 46.
A shift indicator is formed by disposing a colored plate 52 between the light guide plate 4 and the light guide plate 4 by turning on the light source 48 for illumination.
6. At the same time that each symbol design part 41 is colored (for example, white) through the translucent coloring part 45, the one of the notification light sources 51 is selectively turned on according to the driver's shift operation. The corresponding display frame 42 through the more colored plate 52
Is colored (for example, green) through transmission illumination to notify the driver of the shift position.

[0003]

However, the above-described display device has a disadvantage that the display of the display board 44 is performed because the illumination display of the symbol design portion 41 and the notification display by the illumination of the display frame 42 are performed separately.
And two types of panel members, the coloring plate 52, are required, so that the number of parts is increased, and there is a problem that the cost is high and the assembling workability is easily deteriorated. In consideration of this point, for example, a light guide plate corresponding to the display frame 42 instead of the coloring plate 52
46 It is also conceivable to form a colored portion on the rear surface portion and illuminate the display frame 42 with the colored illumination light of the notification light source 51 passing through the translucent colored portion, but an illumination light source guided to the light guide plate 46 is also considered.
Since the colored portion is also illuminated by the 48 illuminating lights, there is an inconvenience that good notification display cannot be performed.

[0004] The present invention has been made in view of this point, and a main object thereof is to provide a display device capable of reducing the number of components.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a case provided with a lighting room having an opening.
A part located in front of the case and facing the opening of the lighting room
And a translucent colored portion printed and formed on
A light-transmitting portion adjacent to the periphery of the
The recording part partially covers a portion corresponding to the opening of the lighting room.
Whether the translucent part is formed excluding the ground part
Or, a display plate cut out as an opening,
The front of the display plate corresponding to the light colored portion and the light transmitting portion
Placed in the region, and displayed on a portion corresponding to the translucent colored portion.
A light guide plate made of a transparent material having a design portion,
The translucent light that is disposed in front of the light plate and includes the display design portion
Made of a light-shielding material having a window that exposes the
A light shielding member provided inside the lighting room,
To illuminate the colored part and notify and display the display design part
Light source, provided on the outer periphery of the lighting room,
Light for illuminating the display design part via the light guide plate
And a source .

In the above structure, the display plate is formed by printing at least the ground portion and the translucent colored portion on a plate-shaped transparent base material, and the light transmissive portion comprises a printed portion of the ground portion. Is what is being done.

In the above structure, the instrument body is housed near the illumination room of the case, and the display panel is formed continuously in front of the instrument body, and the continuously formed portion of the display panel is formed of the instrument body. Has a light-transmitting index portion to be indicated by a pointer driven by the pointer.

[0008]

According to the present invention, the display design portion is illuminated and displayed by the illumination light of the illumination light source guided to the light guide plate through the light transmitting portion of the display plate, while being colored through the translucent coloring portion of the display plate. The display design portion is notified and displayed by the illumination light of the notification light source. Therefore, the number of components can be reduced by eliminating the conventional coloring plate.

Further, according to the present invention, since the light-transmitting portion is constituted by the printed portion of the ground portion, the amount of transmitted light in the light-transmitting portion can be easily adjusted and controlled by adjusting the printing cutout area of the ground portion. be able to. Therefore, it is easy to adjust the illumination brightness of the display design part by the illumination light source.

Further, according to the present invention, the display plate for the display device having the display design portion and the display plate for the instrument having the index portion are shared, so that when the display device is applied to the instrument device, the number of parts is reduced. Can be reduced.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A display device according to the present invention will be described below with reference to the accompanying drawings, taking as an example a case where the display device is applied to a vehicle instrument device.

FIG. 1 is a front view of the instrument device, and FIG.
1 and FIG. 2, reference numeral 1 denotes a case, reference numeral 2 denotes two instrument main bodies including, for example, a speedometer or an engine tachometer, reference numeral 3 denotes a display panel, and reference numeral 4 denotes a shift indicator. Reference numeral 5 denotes a shielding member, and reference numeral 6 denotes a transparent cover.

The case 1 comprises an instrument case in the form of a frame with a bottom. Inside the case 1, each instrument body 2 is housed. At the front side of each instrument main body 2, there is provided a pointer shaft 8 for rotationally driving the pointer 7 according to the measured amount. In this case, the pointer 7 is fixed to the tip of the pointer shaft 8 through the insertion hole 9 of the display plate 3. The longitudinal indicating portion is formed of a light-transmitting material.

The display panel 3 is composed of one continuous display panel corresponding to each instrument main body 2. For example, a light-shielding ground portion 11 ( (For example, black) is formed by printing, and the ground portion 11 is partially removed to form, for example, a white translucent display color portion, thereby providing an index portion 12 such as a numeral or a scale to be indicated by the pointer 7. ing. An instrument light guide plate 13 made of a translucent material such as acrylic is disposed behind the display plate 3, and a small-sized light guide plate 13 is provided at the bottom of the case 1 corresponding to the end of the instrument light guide plate 13. An instrument illumination light source 14 composed of a light bulb and an illumination light source 15 which is also an instrument illumination light source and also serves as a light source of a display device 4 which will be described in detail later, are arranged. By illuminating, the illumination light is guided behind the display plate 3 and the pointer 7 through the instrument illumination light guide plate 13 so that the indicator 12 and the indicator of the pointer 7 are transmitted and illuminated. Further, a shielding member 5 made of a black light-shielding resin material is disposed in front of the display panel 3, and a window 16 exposing this region is formed in a region of the shielding member 5 corresponding to the indicator 12.

The display device 4 is disposed between the instrument main bodies 2 and 3. An illumination room 18 formed by partitioning the interior of the case 1 by a partition wall 17 and an opening 19 of the illumination room 18 are provided. For example, a white translucent colored portion 20 formed in three portions of the display panel facing
And a light-transmitting portion 21 formed around the light-transmitting colored portion 20;
A light guide plate 22 disposed in a front region of the display panel 3 including the light transmitting portion 21 and the light transmitting colored portion 20, and a display design printed on a portion of the light guide plate 22 corresponding to the light transmitting colored portion 20; A portion 23 and a window 24 for the display device 4 formed at a portion of the shielding member 5 corresponding to a position in front of the display design portion 23 and making this portion visible.

As shown in FIG. 3 (a), a plurality of rectangular rooms are arranged in a line in the lighting room 18, and each of the lighting rooms 18 has a notification light source made of a small light bulb. twenty five
An annular reflecting wall 26 is formed on the side of the lighting room 18 and is connected to the reflecting wall 26. Four projections 27 projecting forward are formed at the front end.

The translucent colored portion 20 includes a light control portion (not shown) for dimming the indicator portion 12 formed on the back surface region of the display panel 3 corresponding to the indicator portion 12 and an opening of the illumination room 18. Printed on the back surface area of the display panel 3 corresponding to 19, the front side of the display panel 3 facing the translucent colored portion 20 corresponds to the illumination room 18 as shown in FIG. The transparent portion 28 is formed by removing the ground portion 11 portion to be rectangular in printing, and the outer diameter of the transparent portion 28 is formed slightly smaller than the opening diameter of the opening 17 of the lighting room 18. I have.

As shown in FIG. 3B, the light-transmitting portion 21 is provided by removing the ground portion 11 at the position adjacent to the transparent portion 28 with the ground portion 11 therebetween. The radial shape is formed narrower as the portion is closer to the illumination light source 15, and the reflecting wall 26 of the case 1 (FIG. 3 (b)) (See FIG. 3), and a through hole 29 corresponding to the protrusion 27 is formed.
The front end protrudes forward. In forming the light-transmitting portion 21, in addition to providing the light-transmitting portion as a printed portion of the ground portion 11 as described above, the light-transmitting substrate 10 may be provided as an opening formed by cutting out this area.

As shown in FIG. 3C, the display design portion 23 is formed by printing “P, R, N, D, D” on the back surface of the light guide plate 22 according to the arrangement of the transparent portions 28 of the display plate 3. 2, L ", and are arranged in a line at substantially the center of the light guide plate 22.

At the outer peripheral corner of the light guide plate 22 having the display design portion 23, four positioning portions 31 each having a hole 30 are formed as shown in FIG.
The light guide plate 22 is positioned and arranged on the display plate 3 by press-fitting the hole 30 of the 31 into the projection 27 protruding above the display plate 3 through the through hole 29 of the display plate 3.

When one of the notification light sources 25 is turned on in response to the driver's shift operation, the illumination light is colored green through the translucent coloring section 20, and the colored light is transmitted to the transparent section.
28, the background of the corresponding display design part 23 is illuminated in green by leaking forward through the window 24, thereby informing the driver of the current shift position.

On the other hand, when the surroundings are dark, such as at night, the illumination light source 15 also serving as a light source for instrument illumination is turned on, so that part of the illumination light reaches the light guide plate 22 through the light transmitting portion 21 and is guided. Each display design portion 23 is illuminated by the illumination light introduced into the light plate 22, and is visually recognized by the driver through the window portion 24.

As described in detail above, according to this embodiment,
The display design part 23 is illuminated and displayed by the illumination light of the illumination light source 15 guided to the light guide plate 22 through the light transmitting part 21 of the display panel 3, and is colored through the translucent coloring part 20 of the display panel 3. The background of the display design part 23 is notified and displayed by the illumination light of the light source 25, so that the number of parts can be reduced by eliminating the conventional colored plate, thereby realizing cost reduction and high efficiency of assembly work. it can.

According to the present embodiment, the light transmitting portion 21 is
Since it is composed of the printing blank portion, the amount of transmitted light in the light transmitting portion 21 can be easily adjusted and controlled by adjusting the printing blank area of the ground portion 11, and the display design portion 23 by the illumination light source 15 can be adjusted. Adjustment of illumination brightness becomes easy.

Further, according to this embodiment, the display panel 3 for the display device 4 having the display design section 23 and the display panel 3 for the instrument having the index section 12 can be shared, so that the display apparatus can be used. In applying 4 to an instrument device, the number of parts can be reduced.

In this embodiment, the display design part 23 is formed by a light guide plate.
Although provided on the back of 22, the display design portion 23 may be provided on the surface of the light guide plate 22, and the display design portion 23 is illuminated by the illumination light from the translucent portion 21, If the notification display by coloring is possible, it may be provided by engraving other than printing.

Further, a reflection surface for reflecting illumination light toward the display design portion 23 is formed on the upper surface of the light guide plate 22 at a position corresponding to the light transmission portion 21, or a light incident portion and a reflection portion of the illumination light are roughened. Therefore, it is also possible to provide a uniform and bright illumination.

Further, in this embodiment, an example is shown in which the background of the display design portion 23 is informed and displayed by the notification light source 25. However, as another embodiment, as shown in FIGS. A transparent colored portion 20 is provided on the back surface of the display panel 3 corresponding to the transparent portion 28 formed in a frame shape, and the frame-shaped transparent portion 28 is colored by lighting the notification light source 25. By displaying the information, a notification display of the display design unit 23 may be performed.

[0029]

As described in detail above, according to the present invention, a case provided with an illumination room having an opening,
Located in front of the lighting room and facing the opening of the lighting room.
The translucent colored portion to be formed by printing and the periphery of the translucent colored portion
A light-transmitting portion adjacent to the base portion, and a light-shielding ground portion;
Is partially removed from the portion corresponding to the opening of the lighting room
Formed and the light-transmitting part excludes the ground part or
A display plate having a notch formed as an opening;
In the front area of the display panel corresponding to the color part and the light transmitting part
The display design is disposed on a portion corresponding to the translucent coloring portion.
A light guide plate made of a transparent material having a portion, and a light guide plate
The translucent coloring including the display design portion disposed in front of the translucent coloring
Shield made of a light-shielding material having a window for exposing a part region
A member and the translucent coloring provided inside the lighting room;
Information light source for illuminating a part to inform and display the display design part
And a light-transmitting portion provided on the outer periphery of the lighting room,
An illumination light source for illuminating the display design portion via a light plate,
By providing a display device, it is possible to eliminate the conventional coloring plate, reduce the number of components, and provide a display device capable of reducing costs and increasing the efficiency of assembly work.

Further, according to the present invention, the display plate is formed by printing at least the ground portion and the translucent colored portion on a plate-shaped transparent base material, and the light transmissive portion is a printed portion of the ground portion. , The amount of transmitted light in the light-transmitting part can be easily adjusted and controlled by adjusting the printing blanking area in the ground part, and the adjustment of the illumination brightness of the display design part by the light source for illumination is easy. Becomes

Further, according to the present invention, the instrument main body is housed in the vicinity of the illumination room of the case, and the display panel is continuously formed in front of the instrument main body. By having a translucent index portion to be indicated by a pointer driven by the instrument main body, it can be used as a display panel for a display device having a display design portion and a display panel for an instrument having an index portion. Therefore, the number of components can be reduced when the display device is applied to the instrument device.

[Brief description of the drawings]

FIG. 1 is a front view in which a display device according to the present invention is applied to a vehicle instrument device.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a front view showing a main part on the front side of each component of the display device of FIG. 1;

FIG. 4 is a sectional view of a main part showing another embodiment of the present invention.

FIG. 5 is a front view of FIG. 4;

FIG. 6 is a sectional view of a main part showing a conventional example.

FIG. 7 is a front view of FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 2 Instrument body 5 Shielding member 7 Pointer 10 Translucent board (base material) 11 Ground part 12 Indicator part 15 Lighting source 18 Illumination room 19 Opening 20 Translucent coloring part 21 Translucent part 22 Light guide plate 23 Display Design Department 24 Window 25 Light source for information

Claims (3)

(57) [Claims] 1. A case provided with an illumination room having an opening.
And the opening of the lighting room facing the front of the case
The translucent coloring portion printed and formed on the site and the translucent coloring
A light-transmitting portion adjacent to the periphery of the portion, and a light-shielding ground portion,
The ground part partially covers a portion corresponding to the opening of the lighting room.
And the light-transmitting part excludes the ground part
Or a display plate cut out as an opening, and the display plate corresponding to the translucent colored portion and the translucent portion
A part corresponding to the translucent colored part,
A light guide plate made of a transparent material having a display design portion formed thereon, and a light guide plate disposed in front of the light guide plate and including the display design portion.
A light-shielding material having a window exposing the transparent colored portion area
And a light-transmitting colored portion provided inside the lighting room and illuminating the transparent coloring portion.
A notification light source for notifying and displaying the display design portion, and the light transmission portion and the light guide plate provided on an outer periphery of the illumination room.
An illumination light source for illuminating the display design part via
Display device characterized by obtaining. 2. The display plate is formed by printing at least the ground portion and the translucent colored portion on a plate-shaped transparent base material,
The display device according to claim 1, wherein the light-transmitting portion is formed of a printed portion of a ground portion. 3. An instrument main body is housed in the case near the lighting room, and the display panel is continuously formed in front of the instrument main body, and a continuously formed portion of the display panel is driven by the instrument main body. The display device according to claim 1, further comprising a translucent index portion to which a pointer is indicated.