JP5321502B2 - Display device and electronic or electric device provided with the same - Google Patents

Description

The present invention relates to a display device having a light emitting unit for calling attention, and an electronic or electric device including the display device.

Such a display device is used in, for example, an in-vehicle wireless device disclosed in Patent Document 1. This in-vehicle wireless device is mounted on a dashboard, a seat, or the like in a fire engine or an ambulance, and transmits / receives commands and vehicle statuses to / from a plurality of base stations and mobile stations via wireless communication. For this reason, the in-vehicle wireless device requires a display device that can display a communication state with the base station, a call state, and a command content together with various operation buttons, a microphone connection unit, and a speaker. In the conventional in-vehicle wireless device 100 shown in FIG. 7, it is possible to display timely information on the display device 200 by using the LCD 210 that displays a dot matrix for the display of the display device 200.
The LCD 210 is covered with a transparent material 220 and is flush with the main body. For this reason, the display content can be confirmed for those who view information from the front side of the in-vehicle wireless device 100, but the display content does not enter the field of view for those who are on the side such as the driver's seat or the passenger seat. You may miss contact from the station.

As a display device that calls attention to those who are on the side, there is a display device in which the side surface of the convex cover that covers the display unit displayed by the light emitter is a diffusion-permeable fixed wall, and the fixed wall emits light ( Patent Document 2).
Certainly, the method of calling attention by illuminating the side of the convex cover with a light emitter is also effective for those who are on the side, but combining the cover of a convex transmission member made of another part with the case Therefore, costs are involved and assembly work is also required.

In addition, in the case of an in-vehicle wireless device, in order to confirm the communication state with the base station, the color emitted by a light emitter such as an LED can be determined in an instant, which is effective for calling attention. An LCD that can display characters and figures is effective to know the status of other vehicles. Each of the plurality of display means needs to be easy to see. Further, it is desirable to have a plurality of display means, which can reduce cost and can be easily assembled.

The present invention has been made in view of the above points, and its purpose is high visibility from the side of the display device, it is easy to call attention, and it has a plurality of display means, but the cost is low. It is an object of the present invention to provide a display device that is suppressed and easy to assemble.

In order to achieve the above object, the invention according to claim 1 includes a transparent plate and a mounting panel that supports the transparent plate, and a light emitter is disposed in a light guide tube portion that projects to the back side of the mounting panel. The transparent plate that has a trapezoidal or geometrical convex portion provided with a first light diffusing means on the surface of the transparent plate facing the light emitter and is in contact with the light outlet of the light guide tube portion This is a display device in which second light diffusing means is provided on the back surface of the plate.

According to a second aspect of the present invention, there is provided a display device in which a concave portion provided with a second light diffusing means is formed on the back surface of the transparent plate in contact with the light outlet of the light guide tube portion.

According to a third aspect of the present invention, there is provided an electronic or electric device comprising the display device according to the first or second aspect .

According to the first aspect of the present invention, the transparent plate and the mounting panel that supports the transparent plate are provided, the light emitter is disposed in the light guide tube portion that protrudes to the back side of the mounting panel, and faces the light emitter. A convex portion having a trapezoidal shape or a geometric shape provided with a first light diffusing means is formed on the surface of the transparent plate, and a back surface of the transparent plate contacting the light outlet of the light guide tube portion is By providing two light diffusing means, the light emitted from the light emitter is once diffused by the second light diffusing means, and further diffused by the convex portion that is transmitted through the transparent plate and provided with the first light diffusing means. Then, by making the entire convex portion emit light three-dimensionally, it becomes a display device that is highly visible from the side and easily attracts attention.

According to a second aspect of the present invention, by forming a recess provided with a second light diffusing means on the back surface of the transparent plate in contact with the light outlet of the light guide tube portion, The emitted light is diffused in the whole circumferential direction at the concave portion, and the light is further diffused at the convex portion.

Furthermore, according to the invention of claim 3 , the display device of the present invention is widely applied to electronic or electric equipment.

These are the fragmentary perspective views of the vehicle-mounted radio | wireless apparatus to which this invention is applied. These are sectional drawings of the display apparatus of the vehicle-mounted radio | wireless apparatus to which this invention is applied. These are sectional drawings of the display apparatus of 1st Example of this invention. (A)-(f) is the figure which showed the example of the form of the convex part of this invention. These are sectional drawings of the display apparatus of the 2nd Example of this invention. These are sectional drawings which show the visual field range at the time of seeing the display apparatus of a 2nd Example from the side. Is a conventional in-vehicle wireless device.

<First embodiment>
FIG. 1 is a partial perspective view of an in-vehicle wireless device 2 to which a first embodiment of the present invention is applied. The in-vehicle wireless device 2 is provided with a microphone jack 30, a speaker 31, and a number of operation buttons 32 in addition to the display device 1 on the mounting panel 3. In the display device 1, a transparent plate 40 is pasted so as to be flush with the surface of the mounting panel 3, and a light emitting display unit 11, a light emitting display unit 12, and a dot using LEDs as light emitters inside the transparent plate 40. Light emitting display sections 13 using LCDs that display in a matrix are arranged side by side.
Since the body of the in-vehicle wireless device 2 employs dark colors, the surface of the mounting panel 3 also has dark colors, and the transparent plate 40 has dark colors other than the light emitting display portions 11 to 13. Can be seen through.
In addition, dark color printing may be performed on the back surface of the transparent plate 40 except for the light emitting display portions 11 to 13, and the double color tape may be attached to the mounting panel 3 with the double color tape on the back of the dark color printing. Also prevents water from entering the main body.

The in-vehicle wireless device 2 is mounted on a fire truck, an ambulance dashboard, a seat, and the like, and transmits and receives commands and vehicle statuses via wireless communication with a plurality of base stations and mobile stations in the field. When the information is being received or when the information is being transmitted, the LED of the light emitting display unit 12 emits light to notify the user, and the command destination, the command content, and the reception state are displayed on the LCD of the light emitting display unit 13 with characters and figures. Is displayed.
The LED of the light-emitting display unit 11 emits green light when the in-vehicle wireless device 2 is within the service area area of the base station and a call is possible, and emits red light when the call is restricted outside the service area. As a result, it is possible to immediately determine the state of the call simply by looking at the emission color, and to take action in a timely manner.

As shown in FIG. 2, the light-emitting display unit 11 of the display device 1 has the transparent plate 40 attached to the light-emitting display unit 11 while the mounting panel 3 is lowered by one step so as to be flush with the surface of the mounting panel 3. As shown in FIG. 3, a light guide tube portion 33 is provided on the back side of the mounting panel 3 so as to protrude to the substrate 60 on which the LED 50 is erected, and the LED 50 is disposed in the light guide tube portion 33. . A trapezoidal convex portion 41 is formed on the surface of the transparent plate 40 facing the LED 50, and a first light diffusing means 42 is applied to the surface of the convex portion 41. The first light diffusing means 42 is etching processing or embossing. A second light diffusing means 43 is provided on the back surface of the transparent plate 40 that contacts the light outlet 34 of the light guide tube portion 33. The second light diffusing means 43 may be processed by etching, textured, or affixed with a diffusion sheet material. The second light diffusing means 43 may have the same area as the light outlet 34 of the light guide tube 33, or if it is provided slightly larger than the light outlet 34, it diffuses the light emitted from the light outlet 34 without leakage. It is still good because you can.

The shape of the convex portion 41 may be a geometrical figure as shown in FIGS. 4A to 4D, or a pictogram shape indicating ON / OFF as shown in (e) and (f). Alternatively, a three-dimensional character shape may be used. By adopting these figures, it is possible to improve the design in a front view from the convex portion 41 side.

As a result, the light emitted from the LED 50 of the light emitting display unit 11 of the display device 1 passes through and reflects the light guide tube portion 33 and is once diffused by the second light diffusing means 43 and transmitted through the transparent plate 40 to the surface. Further, the first light diffusing means 42 of the convex portion 41 can further diffuse and cause the entire convex portion 41 to emit light three-dimensionally.
Since the light emitting display unit 11 protrudes from the surface of the in-vehicle wireless device 2, it is a green light emitting color that can be communicated to a person on the side of the driver's seat or the passenger seat, or is being regulated. It is possible to check whether the color is red, the action can be taken in a timely manner, the display device has high visibility from the side, and is easy to call attention.

<Second embodiment>
As shown in FIG. 5, a recess 44 provided with second light diffusing means 43 is formed on the back surface of the transparent plate 40 in contact with the light outlet 34 of the light guide tube portion 33 of the first embodiment. The concave portion 44 preferably has a shape slightly smaller than the convex portion 41. Thereby, the light emitted from the LED 50 is diffused to the periphery more than the first embodiment in the concave portion 44, and the light is further diffused in the convex portion 41, so that the light spreads to the side surface side of the convex portion 41. Visibility from the direction is enhanced, and the display device is more likely to attract attention.

Furthermore, as shown in FIG. 6, in the first and second embodiments, the light outlet 34 of the light guide tube portion 33 is configured to be smaller than the convex portion 41 when viewed from the convex portion side. As for the line of sight from the user Y, the light exit 34 is hidden by the convex portion 41, so that the front light diffusion means and the LED 50 are hidden from the field of view Z. On the other hand, the light emitted from the light exit 34 is suppressed from spreading to areas other than the convex part, and a clear display can be obtained.

Further, as shown in FIG. 2, the display device 1 includes light emitting display portions 11 and 12 using LEDs and a light emitting display portion 13 using an LCD that displays in a dot matrix, which are arranged side by side. 40 also serves as a cover for these display units, so that a sense of unity is born in the light emitting display units with different forms, and the assembly can be facilitated by simply attaching a single transparent plate 40, thereby reducing costs. It is done. In addition, since the in-vehicle wireless device 2 has a dark color, the light exit 34 of the light emitting display units 11 and 12 becomes dark when not displayed and cannot be seen from the surface, and the light emission color can be visually recognized only when it is turned on. Only display contents can be obtained, and visibility is enhanced by properly using these different types of light-emitting displays.
In addition, dark color printing may be performed on the back surface of the transparent plate 40 except for the light emitting display portions 11 to 13, and the double color tape may be attached to the mounting panel 3 with the double color tape on the back of the dark color printing. Also prevents water from entering the main body.

In the embodiment, the in-vehicle wireless device has been described as an example of the device provided with the display device of the present invention. Widely applicable to equipment.

DESCRIPTION OF SYMBOLS 1 Display apparatus 11 Light emission display part 12 Light emission display part 13 Light emission display part 2 Car-mounted radio | wireless apparatus 3 Mounting panel 33 Light guide cylinder part 34 Light exit of the light guide cylinder part Transparent plate 41 Protrusion part 42 First light diffusion means 43 Second light diffusion means 44 Recess 50 LED
60 substrates

Similar No. 1 publication of registered design No. 1022177 JP-A-1-260485

Claims (3)

A transparent plate and a mounting panel that supports the transparent plate are provided. A light emitter is disposed in a light guide tube protruding from the rear surface of the mounting panel, and a first light is placed on the surface of the transparent plate facing the light emitter. A convex portion having a trapezoidal shape or a geometric shape provided with a diffusing means is formed, and a second light diffusing means is provided on the back surface of the transparent plate contacting the light outlet of the light guide tube portion. Display device.   The display device according to claim 1, wherein a concave portion provided with a second light diffusing unit is formed on the back surface of the transparent plate in contact with the light outlet of the light guide tube portion. It claims 1 to electronic or electric devices including the display device according to 2.

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