JPH06201859A - Film liquid-crystal display device and film liquid-crystal apparatus - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a film liquid crystal display device having a structure in which the degree of freedom in the arrangement of peripheral electronic components is expanded. A second flexible substrate 32 is arranged to face the first flexible substrate 31, a third flexible substrate 33 is arranged to face the first flexible substrate 31, and the second flexible substrate 32 and the third flexible substrate 32 are arranged to face each other. A gap portion 34 is provided between the flexible substrate 33 and the connection electrode is formed in the gap portion 34. Since the connecting electrodes are provided between the flexible substrates, peripheral electronic devices can be freely arranged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film liquid crystal display device and a display device using the film liquid crystal display device.

[0002]

2. Description of the Related Art Electronic devices such as electronic wrist watches and electronic calculators are equipped with a display device for displaying time, calculation results and other information. In this display device,
In recent years, film liquid crystal display devices have been used from the viewpoint of making electronic devices thinner. This film liquid crystal display device is configured such that two flexible substrates are arranged facing each other and a liquid crystal material is filled between the flexible substrates, and predetermined information is displayed by applying a voltage.
In order to apply such a voltage, the film liquid crystal display device is provided with a connection terminal. Conventionally, one end portion of two flexible boards is extended more than the other end, a connection terminal is formed at this extension end portion, and the connection terminal and a circuit in an electronic device are connected to each other. .

[0003]

However, in the film liquid crystal display device having the conventional structure, since the connecting terminals are provided at the end portions, the arrangement of electronic parts connected to the connecting terminals is restricted and There are also restrictions on the arrangement of surrounding electronic components. For this reason, the degree of freedom in the arrangement of electronic components and the appearance design has been small.

The present invention has been made in consideration of the above circumstances, and a film liquid crystal display device and a film liquid crystal display device capable of increasing the degree of freedom without restricting the arrangement of electronic parts in an electronic device. An object is to provide a display device using a display device.

[0005]

In order to achieve the above object, the film liquid crystal display device of the present invention comprises a first flexible substrate and one of the first flexible substrates which are disposed opposite to each other via a liquid crystal material. A second flexible substrate,
A third flexible substrate, which is disposed on the other side of the first flexible substrate and is opposed to the second flexible substrate with a space therebetween with a liquid crystal material interposed therebetween; the first flexible substrate and the second flexible substrate; And a connecting electrode formed in the space between the first flexible substrate and the third flexible substrate facing each other.

In the film liquid crystal display device of the present invention, the first display portion is formed on one side and the second display portion is formed on the other side through the space portion.
And the first and second display portions are formed in the space portion.
And a circuit board connected to the connection electrodes of the film liquid crystal member and outputting a signal to be displayed on the first and second display sections. It is characterized by being

[0007]

FIG. 1 shows an embodiment in which the present invention is applied to a wrist watch type computer, and a device case 1 provided with a watch band 2 at both ends thereof has a data display section 3 as a first display section. And a key display unit 4 as a second display unit. The data display unit 3 displays calculated numerical values, time, etc., and the key display unit 4 displays numerical data or calculation commands, and by pressing the displayed key portion, the data, commands, etc. are displayed. Input is made. These display parts 3 and 4 are arranged with a space 5 in between, but all the display parts 3 and 4 are arranged in a single film liquid crystal display device as described later.

FIG. 2 shows the internal structure of this embodiment, in which the inside of the equipment case is vertically divided by a partition 10 to form openings 11 and 12. Then, the film liquid crystal display device 30 and the film sheet-shaped transparent member 13 are arranged in a laminated state in the upper opening 11. Further, a film liquid crystal display device 30 corresponding to the key display unit 4
A sheet-shaped key switch member 14 is provided in the lower part of the. On the other hand, in the lower opening 12, a circuit board 16 on which the LSI 15 is mounted is arranged. The LSI 15 outputs a signal for controlling the entire device and a display signal to the film liquid crystal display device 30. The circuit board 16 sends these signals to the corresponding parts. Therefore, the terminal portion 14a of the key switch member 14 is extended from the slit 18 formed in the partition portion 10 of the device case 1 into the lower opening portion 12, and the terminal portion 14a is formed.
The input and output terminal portions (not shown) of the circuit board 16 are connected by a connector member 17 such as an interconnector. Further, with respect to the film liquid crystal display device 30, the terminal portion at one end of the sheet connector 19 is connected to the circuit board 16 via another connector member 17, and the terminal portion at the other end of the sheet connector 19 forms the slit 18. The electric connection is made by passing through and connecting to the connection electrode 35 (see FIG. 4) of the film liquid crystal display device 30 described later. In FIG. 2, 20 is a battery as a power source provided in the device case 1, and 21 is a back cover attached to the lower surface of the device case 1.

Next, the structure of the film liquid crystal display device 30 will be described. FIG. 3 is a front view of the film liquid crystal display device 30,
4 and 5 are rear views of the same, FIG. 6 is a state of arrangement in the device case 1, and FIG. 7 is a state of electrical connection. The film liquid crystal display device 30 includes a first flexible substrate 31 and
The first flexible substrate 31 is provided with a second flexible substrate 32 and a third flexible substrate 33 which are arranged to face each other with a liquid crystal material interposed therebetween. The second flexible board 32 is at a position corresponding to the data display section 3 (see FIG. 1), and the third flexible board 33 is the key display section 4 (see FIG. 1).
And a space 34 is provided between the second and third flexible substrates 32 and 33 corresponding to the space 5 (see FIG. 1). In addition, display electrodes (not shown) are provided on the opposing surface portions of the first flexible substrate 31 and the second flexible substrate 32 and the opposing surface portions of the first flexible substrate 31 and the third flexible substrate 33. When a display signal (voltage) is input to the display electrode, a visible display of characters and the like is performed by the liquid crystal material. In order to input a signal to the display electrode, the film liquid crystal display device 3
At 0, a connection electrode 35 drawn from the display electrode is formed. The connection electrode 35 is disposed in the gap 34 between the second flexible substrate 32 and the third flexible substrate 33, and the connection electrode 35 is exposed on the back surface of the gap 34. Slit window 36 for
Are formed. Then, the terminal portion 1 at the other end of the sheet connector 19 from the circuit board 16 is provided in the slit window 36.
Connecting electrode 35 with 9a inserted and bent
By heat sealing or the like, the electrode 35 is electrically connected (see FIGS. 6 and 7).

8 to 12 show the procedure for assembling this embodiment. As shown in FIG. 8, the device case 1 is formed with an upper opening 11 above the partition 10, and the upper opening 11 is provided with a lower opening 12 through a slit 18.
(See FIGS. 2 and 6). In this state, as shown in FIG. 9, the key switch member 14 is placed on one side of the upper opening 11 and is bonded to the partition 10. Next, as shown by the hatched portion in FIG. 10, an adhesive layer 25 such as a double-sided adhesive tape or adhesive is provided on the key switch member 14 and the partition portion 10. The adhesive layer 25 is provided on the entire surface except the slit 18. After that, as shown in FIG. 11, the film liquid crystal display device 3 is placed in the upper opening 11.
Insert 0 and glue the back side. FIG. 12 shows a state in which the decorative panel 26 is provided on the upper side of the film liquid crystal display device 30, and the upper surface of the film liquid crystal display device 30 except the portions corresponding to the data display portion 3 and the key display portion 4 is hidden.

In this embodiment, a space 34 is provided between the second flexible substrate 32 and the third flexible substrate 33, and the connection electrode 35 is provided in the space 34.
Since the above is provided, the electronic components connected to the film liquid crystal display device and the surrounding electrical components can be arranged freely. Therefore, the electronic parts can be efficiently arranged and the degree of freedom in external design is expanded.

The present invention is not limited to the above-described embodiments, but can be variously modified. For example, the film liquid crystal display device may be composed of four or more flexible substrates. Further, the present invention can be similarly applied to electronic wrist watches, electronic notebooks, communication devices, and other electronic devices.

[0013]

As described above, since the present invention is a film liquid crystal display device in which connecting electrodes are formed between flexible substrates, other electronic parts can be freely arranged, and
It can be a creative device.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a sectional view of an embodiment.

FIG. 3 is a front view of a film liquid crystal display device.

FIG. 4 is a rear view of the film liquid crystal display device.

FIG. 5 is a rear view of the film liquid crystal display device.

FIG. 6 is a cross-sectional view showing electrical connection.

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

FIG. 8 is a front view showing the assembly of the embodiment.

FIG. 9 is a front view showing the assembly of the embodiment.

FIG. 10 is a front view showing the assembly of the embodiment.

FIG. 11 is a front view showing the assembly of the embodiment.

FIG. 12 is a front view showing the assembly of the embodiment.

[Explanation of symbols]

 1 Equipment Case 3 Data Cover 4 Key Display 5 Space 16 Circuit Board 19 Sheet Connector 30 Film Liquid Crystal Display 31 First Flexible Board 32 Second Flexible Board 33 Third Flexible Board 35 Connection Electrode

Claims (2)

[Claims] 1. A first flexible substrate, a second flexible substrate disposed opposite to one of the first flexible substrates with a liquid crystal material interposed therebetween, and a second flexible substrate disposed on the other side of the first flexible substrate. A third flexible substrate, which is arranged to face the substrate and has a gap portion and is disposed via a liquid crystal material; surfaces of the first flexible substrate and the second flexible substrate which face each other; and the first flexible substrate. A film liquid crystal display device comprising a third flexible substrate and a connecting electrode formed in the gap. 2. A first display portion is formed on one side, a second display portion is formed on the other side through a space portion, and connection electrodes for the first and second display portions are formed on the space portion. Film liquid crystal display, and a circuit board connected to the connection electrodes of the film liquid crystal member and outputting a signal to be displayed on the first and second display portions. machine.