JPH09198176A - Electronic equipment having display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the machining to be applied to a push button for display of its function by confirming visually this function display by means of a display device showing the main body operations and via a transparent part of the push button and a through-hole. SOLUTION: A mode changeover state is detected, and the function display performed at the lower part of a display device 9 is switched to the function display of a radio reception mode. The device 9 displays the numeric characters 1 to 5 and the characters such as AM/FM, etc., which can be visually confirmed via a transparent part 8 of a push button 7. When cassette is put into a cassette slot 3 or the button 7 is operated in the radio reception mode, this reception mode is switched to a cassette mode. This mode switching is detected by a control circuit contained in a main body and the characters displayed at the lower part of the device 9 are changed. These displayed characters can be viewed via the part 8 of the button 7. As a result, the cost of the button 7 can be reduced compared with a conventional button that performs the function display via the printing, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device having a display device used for an on-vehicle audio device or the like.

[0002]

2. Description of the Related Art FIG. 5 shows an electronic device having a conventional display device. This electronic device is a vehicle-mounted composite audio device in which a radio receiver and a cassette deck are integrated. In FIG. 5, reference numeral 1 denotes a front plate (escussion) attached to the front surface of the apparatus main body. The front plate 1 is made of a resin molded product, and a plurality of operation buttons 2 are rotatably supported. A function display in the radio reception mode is provided above the operation button 2, and a function display in the cassette mode is provided below the operation button 2. In the radio reception mode, the operation buttons 2A to E are preset channel selection buttons, the operation button 2F is an operation button for mode switching between the radio reception mode and the cassette mode, and the operation buttons 2G and 2H are operations for increasing or decreasing the reception frequency. Used as a button. Further, in the cassette mode, the operation button 2C is an operation button for fast-forwarding the unrecorded portion of the cassette, the operation button 2D is an operation button for repetitive reproduction, and the operation button 2E is for switching the A side and B side of the cassette. Operation button to perform the operation, operation button 2G is fast rewind (REW)
The operation button for operation and the operation button 2H are used as operation buttons for fast forward (FF). The function display attached to each of the operation buttons 2 is performed by a method such as printing or character forming. 3 is a cassette insertion slot for inserting a cassette, 4 is an operation button for ejecting the cassette, 5 is an operation button for both powering on / off and volume adjustment, 6 is a display device, and in a radio receiving mode The display device 6 displays the reception frequency and the like, and also displays the operating state and the like in the cassette mode.

In the main body of the apparatus, a radio receiving circuit, a radio control circuit, a cassette deck, a cassette deck control circuit,
A discriminating circuit for discriminating the operated operation button 2, an amplifier circuit, a display drive circuit, and the like are housed. When the operation button 2 is operated, a switch (not shown) is turned on by the operation button 2, and the determination circuit determines which operation button has been operated. Based on the determination result, the radio receiving circuit, the cassette deck, the display drive circuit. Etc. are controlled.

[0004]

However, in the electronic equipment having the above-mentioned conventional display device, since the function display is performed on each operation button itself by a method such as printing or character forming, the operation button cost becomes high, and As in the above-mentioned conventional example, two function indications are printed on the operation button by printing, character forming, etc.,
There was a problem that the function display became small and it was difficult to see the function display characters. In addition, there is a problem that the structure of the operation button becomes complicated especially when the function display is performed by character forming.

The present invention solves the above-mentioned conventional problems, and provides a display device capable of displaying the function of each operation button without the need to process each operation button for displaying the function. An electronic device having the same is provided.

[0006]

In order to achieve the above-mentioned object, the present invention utilizes a display device for displaying the operating state of the main body of the device, and displays the function display displayed on the display device.
The operation button is visible through the transparent portion and the through hole.

According to the present invention, it is not necessary to process each operation button for displaying the function, and the function display displayed on the display device can be displayed corresponding to each operation button.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is a display device provided in an apparatus body for displaying an operation state of the apparatus body, and a plurality of operation means for giving an operation instruction to the apparatus body. And a control means for determining an operation instruction of the operation means and controlling the apparatus main body based on the result of the determination, and the operation button forming the operation means is arranged in the front part of the display device, The function display displayed at the location corresponding to the operation button of the display device is made visible through the transparent portion or through hole of the operation button, and it is necessary to perform the function display by printing or the like on each operation button. Instead, the function of the operation button can be displayed using the display device.

The invention according to claim 2 further comprises mode switching means for switching the operation mode of the apparatus main body, and the function display displayed on the display device is changed in accordance with the mode switching by the mode switching means. It is characterized by, without displaying the function on the operation button itself,
A plurality of function displays assigned to the operation buttons can be displayed on the display device.

According to a third aspect of the present invention, a pair of reflection mirrors is further arranged between the display device and the operation button, and the function display displayed on the display device is reflected by the pair of reflection mirrors. It is characterized in that the reflected image can be visually observed through the transparent portion or the penetration of the operation button, and the function display can be performed on a portion other than the portion of the operation button facing the display device.

According to a fourth aspect of the present invention, a lens is provided in the through hole formed in the operation button, and the function display displayed on the display device can be magnified and viewed.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
~ It demonstrates with FIG. (Embodiment 1) FIGS. 1 to 3 show an example of a vehicle-mounted composite audio device in which a radio receiver and a cassette deck according to an embodiment of the present invention are integrated. 1 to 3, 1 is a front plate (escussion) attached to the front surface of the main body of the apparatus, the front plate 1 is made of a resin molded product, and the front plate 1 has a plurality of operation buttons 7A to 7H. It is rotatably supported. A through hole is formed in each of the operation buttons 7A to 7H, and a transparent member is attached to the through hole to form a transparent portion 8A.
~ 8H is formed. Reference numeral 9 denotes a liquid crystal display device attached to the front plate 1, and the lower side of the liquid crystal display device 9 is arranged so as to extend to the rear surface of the operation buttons 7A to 7H.

In FIG. 1, 3 is a cassette insertion slot for inserting a cassette, 4 is an operation button for ejecting the cassette, and 5 is an operation button for both powering on / off and volume adjustment. In FIG. 2, 10 is a printed circuit board on which the liquid crystal display device 9 and the switch 11 are mounted, and the switch 11 is driven by the operation button 7. On the upper part of the liquid crystal display device 9, the reception frequency, the operating state, and the like are displayed as in the conventional example.
In the lower part of the liquid crystal display device 9, the function display of the operation button 7 is performed, and the characters and the like displayed on the liquid crystal display device 9 can be visually observed through the transparent portion 8 of each operation button 7. While the function display of the operation button 7 in FIG. 1 is the function display in the radio reception mode, the operation button 7 in FIG.
The function display of indicates the display in the cassette mode.

In the above embodiment, when the radio receiving mode is switched to, the mode switching is detected by the control circuit in the main body of the apparatus, and the function display on the lower part of the liquid crystal display device 9 is switched to the radio receiving mode function display. As shown in FIG. 1, the liquid crystal display device 9 includes “1”, “2”, “3”,
Characters and numbers such as “4”, “5”, and “AM / FM” are displayed, and the displayed characters and numbers can be visually confirmed through the transparent portion 8 of the operation button 7. On the other hand, when the cassette is inserted into the cassette insertion slot 3 or the operation button 7F is operated during the radio reception mode, the radio reception mode is switched to the cassette mode, and the mode switching is detected by the control circuit in the apparatus body. The characters displayed on the lower part of the liquid crystal display device 9 are changed as shown in FIG. 3, and these displayed characters can be seen through the transparent portion 8 of the operation button 7.

(Second Embodiment) FIG. 4 shows another embodiment of the present invention. In this embodiment, the reflection mirrors 12 and 13 are attached to the rear surface of the operation button in a tilted manner.
Characters displayed on the liquid crystal display device 9 are the reflection mirror 1
2. The reflected image is reflected by the reflection mirror 13, and the reflected image is displayed on the transparent portion 8.
According to the present embodiment, the transparent portion 8 is formed at the center of the operation button 7, and the function display can be performed at the center of the operation button 7.

In the above embodiment, the transparent member is attached to the through hole formed in the operation button 7, but the function display may be made visible through the through hole formed in the operation button 7, Further, a lens may be attached to the through hole of the operation button 7 so that the function display can be magnified and viewed through the lens.

The above embodiment is an example of a vehicle-mounted composite audio device in which a radio receiver and a cassette deck are integrated, but a radio receiver alone, a cassette deck alone,
Alternatively, it can be used as a function display for a CD (compact disc) player alone, and also as a function display for an electronic device in which three or more devices are combined.

In the above embodiment, the liquid crystal display device for displaying the reception frequency, the operation state of the cassette deck, etc. is used for the function display. The section can also be used as a function display. The display device is not limited to the liquid crystal display device, and a cathode ray tube or the like can be used.

[0019]

According to the present invention, it is possible to display the function of each operation button by using a display device for displaying the operation state of the main body of the apparatus without displaying the function on the operation button. Thus, the cost of the operation button can be reduced as compared with the conventional operation button for displaying the function.

[Brief description of drawings]

FIG. 1 is a front view of an electronic device having a display device according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a main part of the same embodiment.

FIG. 3 is a display diagram showing an example of a function display of the same embodiment.

FIG. 4 is a sectional view of a main part of an electronic device having a display device according to a second embodiment of the present invention.

FIG. 5 is a front view of an electronic device having a conventional display device.

[Explanation of symbols]

 1 Front Plate 7A to 7H Operation Button 8 Transparent Section 9 Liquid Crystal Display Device 11 Switch 12, 13 Reflection Mirror

Claims (4)

[Claims] 1. A display device which is provided in an apparatus main body for displaying an operation state of the apparatus main body, a plurality of operation means for giving an operation instruction to the apparatus main body, and an operation instruction of the operation means, and the determination result And a control means for controlling the main body of the device based on the above, and the operation buttons constituting the operation means are arranged in the front part of the display device, and displayed at a position corresponding to the operation button of the display device. An electronic device having a display device capable of visually displaying a function display through a transparent portion or a through hole of the operation button. 2. The display according to claim 1, further comprising mode switching means for switching the operation mode of the apparatus main body, and changing the function display displayed on the display device according to the mode switching by the mode switching means. An electronic device having a device. 3. A pair of reflection mirrors are arranged between the display device and the operation button, and the function display displayed on the display device is reflected by the pair of reflection mirrors, and a transparent portion or a through hole of the operation button. An electronic device comprising the display device according to claim 1, wherein a reflected image is visible through a screen. 4. The display according to claim 1, wherein a lens is provided in a through hole formed in the operation button, and the function display displayed on the display device is visible through the lens. An electronic device having a device.