JPH08146897A - Multiple display device - Google Patents

Abstract

PURPOSE: To make it possible to display desired information and to enhance the degree of freedom in designing without freshly expanding a display area by providing the front surface of a display or display board with EL light emitting elements consisting of transparent electrodes. CONSTITUTION: A display driving means and a data processing control means are built in a circuit mechanism section 6. The display means has the hands 4 and a dial 5 and a battery 7 is used as an electric power supply section. Further, the front surface of this display means is provided with the electroluminescence(EL) display 3. The respective members are built in a lower case 2 having an upper case 1 and a rear cap 8. If these is an instruction of data output to a central processing unit, the central processing unit reads out the data from a semiconductor memory and sends the data to a display driving section. The display driving section impresses signal voltages on the EL display 3 according to this data to trigger the EL to make light emitting display. The EL display 3 is transparent except at the time of display and normally functions as a pure analog timepiece.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device having a plurality of display portions on the same surface.

[0002]

2. Description of the Related Art Conventionally, for example, in an analog type timepiece, a time and a dial are used to display the time. However, in order to display other information such as a calendar or a telephone number, a dial is used. A display window is opened in the section to display the characters printed on the rotary disc in order on the window, or the shape of the dial is made into a square shape, and another display section such as a liquid crystal display is provided outside the dial. Was provided. Also, like a speedometer of an automobile, there is one that displays a mileage by moving a rotary drum on which a number is printed, in a window provided on a dial. Further, in order to display the time on the mirror, a clock is provided outside the mirror, or to display the time on the mirror surface, a part of the mirror surface is cut out and the clock is attached.

[0003]

However, the above display device has the following drawbacks. That is, in the method in which the display window is opened in a part of the dial, the display window is partially hidden depending on the position of the pointer, which makes it difficult to read the displayed characters. In addition, if the dial face is rectangular, the space of the analog display portion is reduced, which limits the design. Further, since the above method uses a rotary dial or a liquid crystal display, it cannot be displayed in a dark place, and a backlight and a dial illumination are additionally required for displaying. Further, in the case of displaying in color, the liquid crystal requires a color filter, which is opaque in structure and cannot be used in the multiple display device of the present invention. Further, in order to provide another display unit on the mirror surface, it is difficult to display a large area because a part of the mirror surface is hidden, and it is not suitable for a portable mirror having a small display area.

In view of the above problems, the present invention provides an EL light emitting element composed of a transparent electrode on the front surface of a conventional display or display plate to display desired information without newly expanding the display area. To enable you to
This will increase the degree of freedom in design. In addition, by using an EL light emitting element, it is possible to display even in a dark place, and by not requiring a color filter, it is possible to perform color display while being transparent when not displaying. In addition, it will be possible to change the display of day and night on signboards and advertisements.

[0005]

According to the first aspect of the present invention,
In a conventional display device including a display driving device and a display device, an EL display device in which the entire substrate is made transparent by a transparent electrode is provided on the front surface of the display device. . The invention according to claim 2 is a conventional display device comprising a display drive means and a display means,
An EL display in which the entire substrate is made transparent by a transparent electrode is provided on the front surface of the display means, and an input section, a data processing control means, and a power supply section are further provided. The invention according to claim 3 provides an EL display in which a transparent electrode is provided on the front surface of a display panel in which pictures, photographs, characters, and symbols are independently or arbitrarily combined, and the entire substrate is made transparent. It is characterized in that it further comprises an input section, a data processing control means, and a power supply section. According to a fourth aspect of the present invention, a mirror and an EL display in which the entire substrate is made transparent by transparent electrodes are provided on the front surface of the mirror, and an input unit, a data processing control unit, and a power supply unit are further provided. It is characterized by.

[0006]

According to the first and second aspects of the present invention, for example, when the device is normally used as a conventional display device and displays information by a newly added function such as a telephone number or a warning at the time of an abnormality, It can be displayed on the display. This is usually an analog display when the indication by the pointer is more favorable in terms of design or ergonomics, and the additional display by numbers or pictures is displayed by the EL display only when necessary. According to the invention described in claim 3, in a general display board such as a signboard, a photograph or a picture, by turning on a switch of an input unit, other information is displayed on the front surface of the display board by an EL display. Can be displayed. Since this is an EL light emitting display, the display content can be changed depending on the picture of the day and the EL display of the night in the signboard or advertisement. According to the fourth aspect of the invention, it is normally used as a mirror, but by turning on the switch, the time, telephone number, etc. can be displayed on the front surface of the mirror by the EL display.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a preferred first embodiment of the multiple display device of the present invention, and FIG. 3 shows a circuit block diagram thereof. The circuit mechanism unit 6 includes a drive unit 28 and a motor 29 as a display drive unit, an oscillator 21, a central processing unit 23, a display drive unit 24 and an inverter 27 as a data processing control unit. A pointer 4 and a dial 5 are provided as display means, and a battery 7 is used as a power supply unit. The display means is characterized in that an EL display 3 is provided on the front surface thereof, and these are incorporated in an upper case 1 and a lower case 2 having a back cover 8.

Next, the structure of the EL display device 3 will be described with reference to FIG. The main transparent electrode 12 is provided inside the glass substrate 11, and the green EL is sealed inside by the insulating layer 14.
A light-emitting layer 15 is provided, and a sub-transparent electrode 16 corresponding to a display segment is further provided inside the light-emitting layer 15. A block having a red EL light-emitting layer 17 having the same structure as the above is provided on the opposing surface.
It is fixed face-to-face by the adhesive portion 13. Multi-colorization is achieved by a combination of the above two colors of light emission.

FIG. 3 shows a circuit block in the embodiment of FIG. 1, and its operation will be described below. A clock as a reference signal is input from the oscillator 21 to the central processing unit 23. In the central processing unit 23, the input reference signal is frequency-divided and a time counting operation is performed.
This result is sent to the drive unit 28, and the motor 29 that drives the pointer 4 is controlled to display the hour / minute value on the dial 5. Here, the drive unit 28 and the motor 29 constitute display drive means, and the drive of the motor 29 moves the pointer 4 through a train wheel mechanism (not shown). The central processing unit 23 has a built-in semiconductor memory,
A name, a telephone number, etc. are stored according to a format according to an instruction from the input unit 22. Next, when there is an instruction from the input unit 22 to output data to the central processing unit 23, the data is read from the semiconductor memory and sent to the display drive unit 24. The display drive unit 24 applies a signal voltage to the EL display 3 in accordance with the data to cause the EL to emit light. The EL display 3 is transparent except during display, and the above functions normally as a pure analog timepiece. Here, the inverter 27 converts the DC power from the power supply unit 26 into AC power that is optimal for driving the EL display device 3.

FIG. 5 shows a second embodiment of the present invention. A reflective mirror 31 is provided on the back surface of the EL display unit 3, which is transparent when the EL is not in a display state and is used as a conventional mirror. The EL display unit 3 is driven by the circuit block unit 20 as necessary. , Display time, phone number and character. FIG. 6 shows the circuit block unit 20, and the operation of each block is the same as that in FIG. In the above, if a signboard, a picture, or a photograph is provided instead of the reflecting mirror 31, the configuration of claim 3 is obtained.

The present invention has the structure as described above, but is not limited to the above. For example, the analog clock display is
Although only the minutes have been described, a second hand may be added, and a calendar display may be performed on the small window of the dial 5 by a rotary disc. Other displays may be added, and digital display by liquid crystal may be used. Further, although the display driving means and the display means have been described as being for a timepiece, they may be a thermometer, a speedometer, a VU meter, a meter for measuring instruments, or the like. Further, the EL display 3 may be a single color instead of the two colors of green and red, or may be a full-color display by arranging green, red, and blue in a three-layer structure or on a plane. Also, as the input unit 22, instead of increasing the type of crown,
It may be composed of ten keys, function keys, or mode keys. Further, the power supply unit 26 may be a solar cell or a configuration in which alternating current of a commercial power source is used to convert to direct current. Further, the oscillator 21, the input unit 22, and the central processing unit 23
Display driver 24, power supply 26, inverter 27
May be provided outside and connected by a cable or the like.

[0012]

According to the inventions of claims 1, 2 and 3 and 4, there are the following effects. (1) Since the EL display unit is normally transparent and is displayed only when necessary, there is no restriction on the design of the main body, and the degree of freedom in design can be increased. (2) The display on the EL display unit is easy to see because it floats on the front surface of the main body. (3) Since it is an EL light-emitting element, it is normally transparent, but can display in color. (4) Since it is an EL light emitting element, the display can be seen even at night. (5) Due to the light of the EL light emitting element, a lighting effect can be obtained during an emergency power failure. (6) Wide viewing angle with respect to liquid crystal display. Further, according to claim 3, pictures and letters are used in the daytime and E is used in the nighttime.
With the L display, the display content is changed, and the expression range of the signboard and the advertisement is widened. Also, in pictures and photographs,
A night view can be expressed by the EL emission color.

[Brief description of drawings]

FIG. 1 is a diagram showing a first embodiment of a multiple display device of the present invention.

FIG. 2 is a diagram showing a structure of an EL display, which is a constituent element of the present invention.

FIG. 3 is a diagram showing a circuit block configuration of a first embodiment of the present invention.

FIG. 4 is a diagram showing a display state of the multiple display device of the present invention.

FIG. 5 is a diagram showing a second embodiment of the multiple display device of the present invention.

FIG. 6 is a diagram showing a circuit block configuration of a second embodiment of the present invention.

[Explanation of symbols]

 3 EL display 4 Pointer 5 Dial 6 Circuit mechanism 31 Reflector

Claims (4)

[Claims] 1. A conventional display comprising a display drive means and a display means, wherein an EL display is provided on the front surface of the display means, the entire substrate being made transparent by transparent electrodes. Multiple display device. 2. A conventional display comprising a display drive means and a display means, wherein an EL display in which the entire substrate is made transparent by transparent electrodes is provided on the front surface of the display means, and an input section is further provided. A multiple display device comprising a data processing control unit and a power supply unit. 3. A display panel in which pictures, photographs, characters, and symbols are independently or arbitrarily combined, and an EL display in which the entire substrate is made transparent by transparent electrodes is provided on the front surface thereof. A multiple display device comprising an input unit, a data processing control unit, and a power supply unit. 4. A mirror, and on the front surface thereof, an EL display in which the entire substrate is made transparent by transparent electrodes are provided, and further an input section, a data processing control means, and a power supply section are provided. Multiple display device.