JPH0155462B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a liquid crystal display device, and more particularly to a liquid crystal display device in which liquid crystal panels are continuously arranged in clusters.

[Conventional technology]

Conventionally, there has been a device of this type as shown in FIG. In Fig. 1, 1 is a TN type liquid crystal panel, 2a and 2b are polarizing plates provided on both the front and back sides of the liquid crystal panel 1, 3 is a terminal part of the liquid crystal panel 1, and 4 is in a plane with the terminal part 3 of the liquid crystal panel 1. The connected connection boards are connected, 5 is a viewer, and 6 is a light source. In the conventional liquid crystal display device configured in this way, the liquid crystal panel 1 is controlled by an input signal from a drive circuit (not shown).
Graphics, characters, etc. are displayed by manipulating the arrangement of the liquid crystals and controlling the amount of light reaching the viewer 5 from the light source 6.

[Problem to be solved by the invention]

However, in conventional liquid crystal display devices, the liquid crystal panel 1
Since the and the connection board 4 are connected in a two-dimensional manner,
The connection part of the board 4 protrudes into the surrounding area, or when a large screen is constructed by continuous liquid crystal panels,
There were problems in that the panels could not be assembled together, and even if a flexible connection board was used, there was a gap between adjacent liquid crystal panels, causing the displayed figures and characters to become discontinuous.

An object of the present invention has been made to solve the problems of the conventional art, and the purpose of the present invention is to eliminate the presence of protruding components around the liquid crystal panel, arrange the liquid crystal panels extremely closely together, and display figures and characters continuously. The object of the present invention is to provide a liquid crystal display device that can be viewed.

[Means to solve the problem]

In the liquid crystal display device of the present invention, the front plate constituting the liquid crystal panel is slightly protruded from the rear plate to serve as a terminal portion, and such liquid crystal panels are arranged in a matrix with the ends of the front plates in contact with each other. , a connecting board is disposed perpendicularly to the terminal portion formed on the front plate of each liquid crystal panel, and the conductive pattern and the electrode of the terminal portion are connected.

[Effect]

According to the liquid crystal display device of the present invention, in each liquid crystal panel, the connection board is disposed approximately at right angles to the terminal portion formed on the surface of the slight protrusion of the front plate on the rear plate mating side. Therefore, there are no obstacles on the edge side of the front plate of each liquid crystal panel, and when a plurality of liquid crystal panels are arranged together, the edges of the front plate are brought into contact with each other so that they are closely arranged in a matrix.

〔Example〕

Hereinafter, the liquid crystal display device of the present invention will be described in more detail with reference to embodiments shown in the accompanying drawings.

FIG. 2 shows a liquid crystal panel constituting a liquid crystal display device according to an embodiment of the present invention. In FIG. 2 showing this embodiment, parts that are the same as or correspond to those of the conventional liquid crystal panel shown in FIG. In Fig. 2, 1a is a front plate and 1b is a rear plate, and the rear plate 1b is tightly attached to the front plate 1a to form a TN type liquid crystal panel.
is configured. In this liquid crystal panel 1, the edge of the front plate 1a slightly protrudes from the rear plate 1b,
A terminal portion 3 is formed on the surface of this protruding portion on the side that is to be mated with the rear plate 1b. The terminal portion 3 is formed by providing a thin, flat electrode 3a which serves as an end portion of a signal for operating the liquid crystal. In this embodiment, the connection board 7 is connected to the liquid crystal panel 1 at a substantially right angle. A connection conductor 8 directly connects each electrode 3a of the terminal portion 3 of the liquid crystal panel 1 to the conductor pattern 9 of the connection board 7, and is made of solder. 10 is a pixel formed of a transparent electrode provided on the liquid crystal panel 1.

In the liquid crystal display device of this embodiment, as shown in FIGS. 3 and 4, a large number of liquid crystal panels 1 are continuously arranged in a matrix with the edges of their front plates 1a in contact with each other. It is composed of In this way, since the edges of the front plate 1a of each liquid crystal panel 1 are brought into direct contact with each other and assembled in a matrix to form a liquid crystal display device, the pixels 10a and 10b of adjacent liquid crystal panels 1 are combined into one panel. pixel 1 of
The spacing can be the same as the spacing between 0a and 10c. For this reason, when a large screen liquid crystal display device is constructed by arranging a large number of liquid crystal panels 1 in series like this, when characters or figures are displayed across the liquid crystal panels 1, no pixels are close to each other. Because they are present, they can be viewed continuously, giving the viewer a natural impression.

In this embodiment, an example is shown in which the end face of the connection board 7 is brought into contact with the terminal part 3 of the liquid crystal panel 1 and connected by the conductor 8, but as shown in FIG. After connecting the connecting board 7a to the terminal portion 3 of the liquid crystal panel 1 in a planar manner as shown in FIG. In this way, the connection between the terminal portion 3 of the liquid crystal panel 1 and the connection board 7a can be easily performed in a two-dimensional manner. Furthermore, if the end of the connection board 7b is bent in advance and the bent end is connected to the terminal part 3 of the liquid crystal panel 1 as shown in FIG. This can be done by crimping. Furthermore, as shown in FIG.
If the electrodes formed on the terminal portions 3 of the liquid crystal panel 1 are extended to the glass end surface of the rear plate of the liquid crystal panel 1 by a method such as metal vapor deposition, and the connection substrate 7c is connected to the electrodes on the glass end surface side, the liquid crystal panel 1 can be The terminal portion 3 can be shortened, and as a result, when a liquid crystal display device is constructed by connecting a large number of liquid crystal panels, the pixel interval between adjacent liquid crystal panels 1 can be further shortened. Further, as shown in FIG. 8, a solder layer terminal 11 is provided on the glass end surface of the rear plate of the liquid crystal panel 1, and the connection board 7a is stacked on this terminal 11, and the end surface of the board is butted against the panel terminal portion, and then the board 7d By applying heat and pressure from above, the solder that will become the connection conductor 12 can flow into the gap between the terminal portion 3 of the liquid crystal panel 1, the connection substrate 7d, and the terminal 11, thereby creating electrical continuity. According to this, the terminal portion 3 of the liquid crystal panel can be shortened in the same manner as described above.

In this embodiment, a transmissive type case is shown in which light is supplied from a light source behind the liquid crystal panel 1. However, the present invention is not limited to this embodiment, and a reflection plate is attached behind the liquid crystal panel. The same effect can be achieved. Furthermore, although this embodiment has been described with respect to a large screen configured with a plurality of liquid crystal panels, it can also be used in cases where there are restrictions on parts other than the panel when using the panel alone.

〔Effect of the invention〕

As explained above, according to the liquid crystal display device of the present invention, the connection substrate having the conductor pattern is arranged almost at right angles to the terminal portion formed on the front plate of each liquid crystal panel, and each conductor pattern and the electrode are connected. As a result, a plurality of liquid crystal panels can be arranged in a matrix by bringing the edges of the front panels that make up the liquid crystal panel into contact with each other, making it possible to shorten the pixel spacing in adjacent parts of the liquid crystal panel. It makes the text much easier to read.

[Brief explanation of drawings]

FIG. 1 is a side view showing a liquid crystal panel in a conventional liquid crystal display device, FIG. 2 is a perspective view showing a liquid crystal panel constituting a liquid crystal display device according to an embodiment of the present invention, and FIG. 3 is a side view showing each liquid crystal panel. FIG. 4 is a perspective view showing a part of a liquid crystal display device according to an embodiment of the present invention configured in a matrix arrangement; FIG. 4 is a side view of the liquid crystal display device shown in FIG. 3; FIG. , 6th
7, and 8 are side views showing modified examples of how to attach the connection board to the liquid crystal panel. 1...Liquid crystal panel, 1a...Front plate, 1b...
Rear plate, 3... Terminal part, 3a... Electrode, 7, 7
a, 7b, 7c, 7d... Connection board, 8, 12...
...Connection conductor, 10...pixel. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Claims] 1. Align the front plate and the rear plate, make the edge of the front plate slightly protrude from the rear plate, and provide an electrode serving as an end of a signal for operating the liquid crystal on the surface of the protruding portion on the side that is mated to the rear plate. A plurality of liquid crystal panels each having a terminal portion formed of a thin flat plate are arranged in a matrix with the ends of the front plate in contact with each other, and the terminal portion of each liquid crystal panel is arranged in a matrix. 1. A liquid crystal display device, characterized in that a connection board having a conductor pattern is arranged at a substantially right angle, and the conductor pattern at an end of the connection board and the electrode of the terminal part are positioned and connected.