JPH0549495U - Display device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a display device which simplifies the manufacturing process to reduce costs and does not require lens replacement. [Structure] A groove 13 which forms an opening 13b in a device body 13 and constitutes a second holding member for holding an LED 6
c formed, and in the opening 13b, the lamp 5
The first holding member 13d for holding the device is integrally formed with the apparatus main body 13, and the surface of the first holding member 13d is mirror-finished by vacuum deposition or the like to form a reflection plate. Therefore, the light from the lamp 5 is reflected by the surface of the first holding member 13d that is mirror-finished, and illuminates the display portion of the switch knob 7 of the operation switch 14. With this, the driver
Each operation switch 14 can be identified even at night, and when the switch knob 7 of the desired operation switch 14 is pressed, the desired operation switch 14 is turned on. When the operation switch 14 is turned on, the LED 6 lights up and the function corresponding to the desired operation switch 14 operates.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device including a plurality of display units for displaying operation status, for example, a display device of a heater control device for automobiles.

[0002]

[Prior Art]

 2. Description of the Related Art Conventionally, there is known a display device of a heater control device for an automobile, which is provided with a plurality of display portions that display the operation statuses of a plurality of operation switches. As shown in FIG. 8, this display device has a housing 1, and a print substrate 2 is arranged in the housing 1. An LED holder 3, a switch 4 and a lamp 5 are arranged on the printed circuit board 2, and the LED holder 3 holds an LED 6. Further, the LED 6 is connected to a predetermined position on the printed circuit board 2 via the LED holder 3, and is turned on and off when the switch 4 is turned on and off.

On the front side of the LED 6 and the switch 4, a switch knob 7 for moving the switch 4 forward and backward is arranged so as to be able to move forward and backward with respect to the housing 1. Further, the light from the lamp 5 is attached to the switch knob 7 to prevent the lens 9 from being illuminated by the light from the lamp 5 and making it difficult to determine which operation switch is functioning. Is provided so as to cover the periphery of the LED 6 as a light-shielding portion with a knob guide 8 that prevents the entry into the LED knob 6 of the switch knob 7, and a transparent material as a display portion is provided in the portion surrounded by the knob guide 8 facing the LED 6. A constructed lens 9 is provided.

In addition, in the vicinity of the lamp 5, a display panel 7 a (see FIG. 9) for displaying the functions of the light from the lamp 5 which is made of a transparent material which is a part of the switch knob 7, and the housing 1 A display panel 11 fixed via a lens holding portion 10 and a lens 12 for guiding light from the lamp 5 are arranged.

Next, the operation will be described.

When the driver turns on the light of the automobile at night, the lamp 5 is also turned on, the light from the lamp 5 is guided by the lens 12, and the display panel 7 a and the display panel 11 of the operation switch of the air control device are displayed. Illuminate. As a result, the driver can identify the operation switch of the air control device even at night. When the switch knob 7 of the desired operation switch is pushed, the switch 4 is pushed by the switch knob 7 and the switch 4 is turned on. When the switch 4 is turned on, the LED 6 lights up and the function corresponding to the desired operation switch operates.

[0007]

[Problems to be solved by the device]

 Since the conventional display device is configured as described above, the first problem is that the light emitted by the LED holder 3 holding the LED 6 and the lamp 5 is diffused to illuminate the entire display panel 7a. Since each lens must be manufactured and assembled separately, a plurality of manufacturing processes and assembling processes are required, which causes a problem of cost increase.

A second problem is that the lens 12 has to be mounted, which makes the weight heavier by that amount.

Further, the lens 9 is made of acrylic, polycarbonate, or the like, but these materials have a problem that they cannot be recycled and generate unnecessary wastes because their transparency decreases. ..

An object of the present invention is to solve the first problem described above, to simplify the manufacturing process to reduce the cost, and to provide a display device that does not require a lens.

[0011]

[Means for Solving the Problems]

 The present invention has been made in view of the above circumstances, and a display device according to the present invention includes a first light source that illuminates a first display unit of a plurality of display units that display operating conditions and the like. A second light source that illuminates a second display portion of the plurality of display portions, a first holding member that faces the first display portion and holds the first light source, and a second display A second holding member arranged to face the first holding member and holding the second light source, the first holding member and the second holding member are integrally formed, and the first holding member has the first holding member. It is characterized in that a reflecting plate for reflecting the light emitted from the light source of (1) toward the first display portion is provided.

[0012]

[Action]

 A display device according to the present invention illuminates a first display unit of a plurality of display units for displaying an operation status with a first light source and a second display unit of a plurality of display units to a second display unit. Illuminate with a light source. Further, by integrally forming the first holding member that holds the first light source and the second holding member that holds the second light source, the manufacturing process can be simplified and the cost can be reduced.

Further, the light emitted from the first light source is reflected toward the first display section by the reflection plate provided on the first holding member. This eliminates the need for transmissive lenses, reduces weight and eliminates the need for lenses.

[0014]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a display device according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is a sectional view taken along line BB of FIG. It is a figure.

As shown in FIGS. 1 to 3, the display device has a device main body 13 made of ABS resin such as white that does not transmit light, and at the bottom of the four corners of the device main body 13, A claw 13a for locking the device body 13 to the printed circuit board 2 is provided. Further, the apparatus main body 13 is formed with an opening 13b through which a plurality of operation switches 14 arranged on the printed circuit board 2 are inserted, and the printed circuit board 2 is arranged so as to correspond to the position where the operation switch 14 is arranged. A groove 13c that forms a second holding member that holds the connected LED 6 is formed.

Then, in the opening 13 b, a first holding member made of ABS resin such as white that does not transmit light for holding the lamp 5 mounted in the lamp socket 15 fixed to the printed circuit board 2 is held. The member 13d is formed integrally with the apparatus main body 13. A reflecting plate is formed on the surface of the first holding member 13d. This reflector is configured so that it can be reflected by shaping the mold by mirror finishing.

Further, each operation switch 14 is provided with a switch knob 7 for advancing and retreating the operation switch 14 so as to advance and retreat with respect to the apparatus body 13 as in the above-mentioned conventional example. The surface of the switch knob 7 constitutes a display portion as shown in FIG. 9, and the switch knob 7 is made of a transparent material or a translucent material.

Next, the operation of this embodiment will be described.

When assembling the display device, the operation switch 14 and the LED 6 are soldered to predetermined positions of the printed circuit board 2 and the lamp socket 15 is fixed. Then, the claw 13a of the device main body 13 is inserted into a locking hole (not shown) formed at a predetermined position of the printed circuit board 2, and the claw 13a is locked in the locking hole. The main body 13 is fixed to the printed circuit board 2. Then, after being assembled in a predetermined housing, the switch knob 7 is attached to each operation switch 14.

Then, when the driver turns on the light of the automobile at night, the lamp 5 is also turned on, and the light from the lamp 5 is reflected on the surface of the first holding member 13d which is mirror-finished as shown in FIG. Then, the display portion (see FIG. 9) of the switch knob 7 of the operation switch 14 of the heater control device is illuminated. As a result, the driver can identify the operation switch 14 of the heater control device even at night. When the switch knob 7 of the desired operation switch 14 is pressed, the operation switch 14 is pressed by the switch knob 7 and the operation switch is pressed. 14 turns on. Then, when the operation switch 14 is turned on, the LED 6 lights up and the function corresponding to the desired operation switch 14 operates.

As shown in FIG. 5, the light from the lamp 5 is reflected by the surface of the device main body 13 and does not pass through to the groove 13 c side where the LED 6 is located. Is not illuminated and it is not difficult to determine which operation switch 14 is functioning.

Further, in the above-described embodiment, the push button type display device is used for description, but the present invention is not limited to this, and the present invention is also applied to a dial type display device as shown in FIGS. 6 and 7. it can. Further, the surface of the holding member 13b may be mirror-finished by vacuum deposition or the like to increase the reflection efficiency.

In addition, in the above-described embodiment, an example in which the display device of the present invention is used in an air control device for an automobile has been described. It can also be applied to a control device.

[0025]

[Effect of the device]

 As described above, according to the present invention, since the first holding member holding the first light source and the second holding member holding the second light source are integrally formed, the manufacturing process is simplified. As a result, it is possible to reduce the number of assembling steps and reduce the cost. Further, since the reflecting plate is formed by mirror-finishing the surface of the first holding member, it is possible to reduce the cost without the need for a transmission type lens made of a heavy material such as acrylic or polycarbonate that is heavy. This reduces the weight and eliminates the need for a lens.

[Brief description of drawings]

FIG. 1 is a perspective view showing a display device according to an embodiment of the present invention.

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

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is a cross-sectional view showing the operation of this embodiment.

FIG. 5 is a cross-sectional view showing the operation of this embodiment.

FIG. 6 is a plan view showing another embodiment of the present invention.

FIG. 7 is a plan view showing another embodiment of the present invention.

FIG. 8 is a cross-sectional view showing a conventional display device.

FIG. 9 is a diagram showing a display portion of a switch knob.

[Explanation of symbols]

 2 printed circuit board 5 lamp 6 LED 13c groove 13d first holding member 14 operation switch

Claims (1)

[Scope of utility model registration request] 1. A display device comprising a plurality of display units for displaying operating conditions and the like, wherein a first light source for illuminating a first display unit among the plurality of display units and a first light source for the plurality of display units are provided. A second light source for illuminating the second display portion; a first holding member arranged to face the first display portion and holding the first light source; and a second light source arranged to face the second display portion and A second holding member for holding the second light source, the first holding member and the second holding member are integrally formed, and the first holding member emits light emitted from the first light source. A display device having a reflection plate that reflects toward the display unit.