JP4753225B2 - Liquid crystal display device and organic electroluminescence display device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a liquid crystal display device and an organic electroluminescence display device in which a liquid crystal display member or organic electroluminescence is arranged on an upper portion of a button to display information such as characters and pictures, and particularly above the button. A liquid crystal display device and an organic electroluminescence display that can display a whole and display a plurality of liquid crystal display devices or organic electroluminescence display devices, thereby enabling a continuous and integral large display surface. Relates to the device.
[0002]
[Prior art]
Conventionally, as this type of liquid crystal display device, as shown in FIG. 7, a liquid crystal display unit 2 is formed by providing an edge 3 from the outer surface of the upper surface of the button 1. Since the general liquid crystal display member 2 is formed of glass in the edge 3 of the button 1, an electrode is formed on the peripheral end surface of the liquid crystal display member 2, and the electrode and the liquid crystal display member 2 are connected to each other. A connecting member for electrically connecting an IC chip for driving is provided.
[0003]
[Problems to be solved by the invention]
The liquid crystal display device configured as described above has a small liquid crystal display area because the edge of the button is indispensable due to the formation of the electrode on the peripheral end surface of the liquid crystal display member 2 and the arrangement of the connection member with the IC chip. There was a drawback of being limited.
Further, along with the miniaturization of devices, there has been a demand for a liquid crystal display device that can display large characters and pictures as well as downsizing.
An object of the present invention is to solve the above problems and provide a liquid crystal display device and an organic electroluminescence display device having a simple structure and easy assembly.
[0004]
[Means for Solving the Problems]
The present invention, in order to achieve the above objects, in a display apparatus capable of displaying information such as characters or pictures by arranging a liquid crystal panel in the upper part of the button, foldable filmy on the upper surface of the button The liquid crystal display member or organic electroluminescence is disposed, and the outer ends of the liquid crystal display member and organic electroluminescence are bent along the opposite side surfaces of the button, and further bent inside the button. Then, it is connected to a printed circuit board disposed in the button .
[0005]
DETAILED DESCRIPTION OF THE INVENTION
According to the present invention, there is provided a liquid crystal display device in which information such as characters and pictures can be displayed by disposing a liquid crystal plate above the square button, and is a film-like film that can be bent on the square button. A liquid crystal display member is provided. Then, the outer edge of the liquid crystal display member is bent along the side surface of the square button, and further bent inside the button to be connected to a printed circuit board mounted with an IC chip disposed in the square button. Thus, the entire surface can be used as a display surface without providing an edge on the upper surface of the square button. Further, with such a configuration, by arranging a plurality of liquid crystal display devices side by side, it is possible to provide a liquid crystal display device that enables a continuous and integral large display surface. Also, an organic electroluminescence display device that can display information such as characters and pictures by arranging organic electroluminescence on the upper part of the square button, and is a film that can be bent to the square button. The organic electroluminescence is arranged. Then, the outer end of the organic electroluminescence is bent along the side of the square button, and further bent inside the button to be mounted on the printed circuit board mounted with the IC chip disposed in the square button. It is connected, and the entire surface can be used as a display surface without providing an edge on the upper surface of the square button.
[0006]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 is a cross-sectional view of a main part of the present invention, FIG. 2 is an exploded perspective view of the present invention, and FIG. 3 is a perspective view showing a display unit of the present invention.
[0007]
In these drawings, the liquid crystal display device of the present invention is used in a push button switch.
Reference numeral 10 denotes a switch body. An operating shaft 11 is mounted at the center of the switch body, a recess 12 is formed on the left side, and a connector 13 with a terminal is provided below the recess 12. The connector 13 is connected to a circuit pattern 16 at one end of a flexible printed wiring board 15 to be described later.
[0008]
The flexible printed wiring board 15 is formed with a through hole 17 through which the operating shaft 11 passes and a through hole 18 through which an IC chip 24 mounted on the lower surface of the printed board 22 passes, and a circuit pattern 16 is provided at one end thereof. A plunger 19 is located at the upper end of the operating shaft 11, and a rectangular hole 21 is formed in the plunger 19. The flexible printed wiring board 15 passes through the rectangular hole 21 and mounts an IC chip 24 described later. It is connected and fixed to the printed circuit board 22. The printed circuit board 22 has an IC chip 24 mounted on the lower surface and a plurality of light emitters 23 disposed on the upper surface.
[0009]
Therefore, the flexible printed wiring board 15 having one end connected to the connector 13 is bent through the rectangular hole 21 provided in the plunger 19 through the operating shaft 11 and is connected to the lower surface of the printed board 22 through the IC chip 24. Fixed.
On the printed circuit board 22, a rectangular diffusion member 25 having a recess 12 formed below is disposed, and a light emitter 23 provided on the printed circuit board 22 is positioned in the recess 26 of the diffusion member 25.
[0010]
A bendable film-like liquid crystal display member 28 is disposed on the upper surface of the diffusion member 25, and the film-like liquid crystal display member 28 is bent along the outer surface of the diffusion member 25. Electrodes electrically connected from the upper surface of the liquid crystal display member 28 are formed on the liquid crystal display member 28 positioned on the side surface of the diffusion member 25, and the end surface thereof is further bent to form a circuit pattern on the back surface of the printed circuit board 22. 16 is fixedly connected.
A switch mechanism is provided in the switch body 10 and projects an operating shaft 11 that drives the switch mechanism. The shaft projecting downward from the plunger 19 and the operating shaft 11 are connected so as to be able to transmit the operating force.
Further, the entire liquid crystal display member 28 constituting the button 27 may be covered with a transparent member, and a drip-proof structure of the button 27 portion can be obtained.
[0011]
With the above configuration, power is supplied from the terminal of the connector 13 to the printed circuit board 22 via the flexible printed wiring board 15, and further, power is supplied to the liquid crystal display member 28 via the IC chip 24 and the light emitter 23. The And display control of the multicolor light-emitting body 23 and the liquid crystal display member 28 is performed by the IC chip 24, and various character display and various color tone changes can be performed.
[0012]
FIG. 3 is a perspective view showing the display unit of the present invention. In this embodiment, katakana and hiragana are displayed in two rows on the upper surface of the square button 27, and the entire upper surface of the button 27 can be displayed.
[0013]
FIG. 4 is a perspective view showing an example of use of the present invention, in which the liquid crystal display device of the present invention is applied to a pushbutton switch and arranged in four rows. With such a configuration, a liquid crystal display device that enables a continuous and integral large display surface can be provided. Further, by arranging a plurality of liquid crystal display devices in an arbitrary arrangement, they can be used for various purposes.
[0014]
FIG. 5 is a perspective view showing another display unit of the present invention, in which a lens 33 is disposed on the upper surface of the liquid crystal display device having the above-described configuration, and characters and pictures on the upper surface can be further enlarged. Is. Moreover, it is good also as a structure which covers a button with a transparent member.
FIG. 6 is a cross-sectional view of an essential part showing another display device of the present invention. Reference numeral 40 denotes a switch body. An operating shaft 41 is mounted at the center of the switch body 40, and a recess 42 is formed on the left side. A connector 43 with terminals is provided below the connector 43. The connector 43 is connected to a circuit pattern 46 at one end of a flexible printed wiring board 45 to be described later.
[0015]
The flexible printed wiring board 45 is formed with a through hole 47 through which the operating shaft 41 passes and a through hole 48 through which an IC chip 54 mounted on the lower surface of the printed board 52 passes, and a circuit pattern 46 is provided at one end thereof. A plunger 49 is located at the upper end of the operating shaft 41, and a rectangular hole 51 is formed in the plunger 49. The flexible printed wiring board 45 passes through the rectangular hole 51 and has an IC chip 54 mounted on the lower surface. It is connected and fixed to the printed circuit board 52.
[0016]
Accordingly, the flexible printed wiring board 45 having one end connected to the connector 43 is bent through the rectangular hole 51 provided in the plunger 49 through the operating shaft 41, and is connected to the lower surface of the printed circuit board 52 through the IC chip 54. Fixed.
[0017]
A bendable film-like organic electroluminescence 58 is disposed on the printed board 52, and the film-like organic electroluminescence 58 is bent along the outer surface of the printed board 52.
An electrode electrically connected from the upper surface of the organic electroluminescence 58 is formed on the organic electroluminescence 58 located on the side surface of the printed circuit board 52, and the end surface thereof is further bent to form the back surface of the printed circuit board 52. The circuit pattern 46 is connected and fixed.
A switch mechanism is provided in the switch body 40, and an operating shaft 41 that drives the switch mechanism is projected. The shaft 50 projecting downward from the plunger 49 and the operating shaft 41 are connected so as to be able to transmit the operating force.
[0018]
With the configuration described above, power is supplied from the terminals of the connector 43 to the printed circuit board 52 via the flexible printed wiring board 45, and further, power is supplied to the organic electroluminescence 58 via the IC chip 54. The display control of the organic electroluminescence 58 and the multicolor light emission control are performed by the IC chip 54, and various character displays and various color tones can be changed. By using this organic electroluminescence, the light emitter for the backlight can be reduced, so the height of the button 57 can be made extremely low, the structure is simple, and the electrical connection is reduced. An organic electroluminescence display device with extremely good quality can be obtained.
[0019]
In the above, the liquid crystal display device and the organic electroluminescence display device of the present invention are shown as examples using the pushbutton switch, but the liquid crystal display device or the organic electroluminescence display device used in various devices is also shown. It can be used and can be used as liquid crystal display devices and organic electroluminescence display devices of various sizes according to the application by freely combining arbitrary quantities vertically and horizontally.
The present invention is not limited to the above-described embodiments, and various modifications can be made based on the spirit of the present invention, and they are not excluded from the scope of the present invention.
[0020]
【The invention's effect】
As described above in detail, according to the present invention, the following effects can be obtained.
(1) In a display device capable of displaying information such as characters and pictures by disposing a liquid crystal plate above the button , a bendable film-like liquid crystal display member is disposed on the upper surface of the button, The wiring electrode portion provided at the outer end of the liquid crystal display member was bent along the opposite side surface of the button, and further bent inside the button and connected to a printed circuit board disposed on the button . Therefore, the entire upper surface of the button can be effectively used, and a large character, a picture, or the like can be displayed. Therefore, a liquid crystal display device with extremely good visibility can be provided.
(2) A bendable film-like liquid crystal display member is disposed above the button, and the wiring electrode portion provided at the outer end of the liquid crystal display member is bent along the opposite side of the button. In addition, since the inner side of the button is bent and connected to the printed circuit board disposed on the button, the entire upper surface of the button can be used as a display surface. A liquid crystal display device can be provided.
(3) Since the liquid crystal display member can be bent into a substantially rectangular box shape and covered up to the upper side of the button, it can be used by arranging it in any direction vertically or horizontally, and it can be used by continuously mounting Even in this case, an integral display is possible.
(4) Since the electrode that obstructs the display surface is provided below the side surface of the liquid crystal display member that is bent, the display surface can be made larger and can be easily connected to the printed circuit board.
(5) Since the liquid crystal display device is formed in a square shape and a plurality of the square liquid crystal display devices can be disposed, the upper surface of the liquid crystal display device can be used as a continuous and integral large display surface.
(6) Since the liquid crystal display device is formed in a square shape and a plurality of the liquid crystal display devices having the square shape can be arranged, any number can be combined freely in the vertical and horizontal directions. It can be used very easily according to the application.
(7) Since the display member is made of a bendable film-like organic electroluminescence, the light emitting body for the backlight can be reduced, so that the height of the button can be made extremely low and the structure is simple and the electrical connection is reduced. Therefore, it is possible to provide an organic electroluminescence display device that is uniform and has very good visibility with few failures.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a main part of the present invention.
FIG. 2 is an exploded perspective view of the present invention.
FIG. 3 is a perspective view showing a display unit of the present invention.
FIG. 4 is a perspective view showing an example of use of the present invention.
FIG. 5 is a perspective view showing another display unit of the present invention.
FIG. 6 is a cross-sectional view of a main part showing another display device of the present invention.
FIG. 7 is a perspective view showing a conventional display unit.
[Explanation of symbols]
10, 40 Switch body 11, 41 Actuating shaft 12, 42 Recess 13, 43 Connector 14, 44 Connector terminal 15, 45 Flexible printed wiring board 16, 46 Circuit pattern 17, 18, 47, 48 Through hole 19, 49 Plunger 20 , 50 Axis 21, 51 Rectangular hole 22, 52 Printed circuit board 23 Light emitter 24, 54 IC chip 25 Diffusion member 26 Recess 27, 31, 57 Button 28, 32 Liquid crystal display member 33 Lens 58 Organic electroluminescence

Claims (4)

In a display device capable of displaying information such as characters and pictures by disposing a liquid crystal plate above the button , a bendable film-like liquid crystal display member is disposed on the upper surface of the button, and the liquid crystal The outer end portion of the display member is bent along the opposite side surface of the button, and further, the display member is bent inside the button and connected to a printed circuit board disposed in the button. Liquid crystal display device.   The liquid crystal display device according to claim 1, wherein the liquid crystal display member is bent into a substantially rectangular box shape.   2. The liquid crystal display device according to claim 1, wherein the liquid crystal display device is formed in a square shape, and a plurality of the liquid crystal display devices having the square shape are provided, and the upper surface of the liquid crystal display device is a continuous and integrated large display surface. 1. A liquid crystal display device according to 1. In a display device that can display information such as characters and pictures by disposing organic electroluminescence on the upper part of the button, bendable film-like organic electroluminescence is disposed on the upper surface of the button The outer end of the organic electroluminescence is bent along the opposite side surface of the button , and further bent inside the button and connected to a printed circuit board disposed in the button. Organic electroluminescence display device characterized by the above.

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