JPS581127A - Multilayered liquid crystal display device - Google Patents

Abstract

PURPOSE:To prevent contact parts and wiring parts from being overcrowded by forming a leading-out electrode part at least one of right and left edges besides top and bottom edges. CONSTITUTION:In the figures, 21 is a 2-layered liq. crystal display device, 31 is a substrate, 32 is LSI, 33 is contact parts, 34 is wiring parts, and 35 is a rubber connector. By forming a leading-out electrode part at the right edge of an intermediate glass substrate 23, the numbers of the contact and wiring parts at the top and bottom of the substrate 31 are reduced, and it is made unnecessary to provide conventional wide pitch. When the display device 21 is produced by a method of forming a number of substrates at once, substrate cutting places are reduced to enhance the productivity and yield.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multilayer liquid crystal display device, and in particular, a completely novel structure characterized in that an extraction electrode portion is provided not only at the upper and lower ends but also at least one of the left and right ends. The present invention provides a multilayer liquid crystal display device.

First, a conventional multilayer liquid crystal display device will be explained.

FIG. 1 is a diagram showing the mounting state of a conventional multilayer liquid crystal display device, in which (1) is a plan view, and (2) is a cross section taken along the line A-A' in (1). FIG. Further, FIG. 2 is a plan view of the substrate 2 in FIG. 1.

In the figure, 1 is a multilayer (two-layer) liquid crystal display device (■ is a front glass substrate, 12 is an intermediate glass substrate, 13 is a rear glass substrate, 14 is a front polarizing plate, 15 is a rear polarizing plate, +6 is a liquid crystal injection device) This is solder for hole sealing.

Other components are omitted in the figure. ), 2 is a substrate, 3 is an LSI, 4 is a contact portion, 5 is a wiring portion, and 6 is a rubber connector for electrically connecting the lead electrode of the liquid crystal display device l and the contact portion 4 of the substrate 2.

As shown in the figure, the conventional multilayer liquid crystal display device has a configuration in which lead-out electrode parts are provided only at either the upper and lower ends or the left and right ends. However, there was a problem in that it became overcrowded, and measures had to be taken to alleviate the problem, such as making the area wider.

The present invention has been made with the aim of solving the above-mentioned problems in conventional multilayer liquid crystal display devices. The above object has been achieved by adopting a completely new configuration in which an extraction electrode section is also provided in the □.

Hereinafter, the present invention will be described in detail based on Examples.

FIG. 3 is a diagram showing an implementation state of an embodiment of the present invention,
Figure fi+ is a plan view, figure (2) is a sectional view taken along line B-B' in figure (1), figure (3) is figure (+
) is a sectional view showing a cross section taken along line c-c'. Further, FIG. 4 is a plan view of the substrate 31 in FIG. 3.

In the figure, 21 is a two-layer liquid crystal display device (22 is a front glass substrate, 23 is an intermediate glass substrate,
24 is a rear glass substrate, 25 is a front polarizing plate, 26 is a rear polarizing plate, and 27 is solder for sealing the liquid crystal injection hole. Other components are omitted in the figure. ), 81 is the board, 32
38 is a contact portion, 34 is a wiring portion, and 35 is a rubber connector.

As shown in the figure, by configuring the intermediate glass substrate 28 to provide the lead-out electrode section at the right end, the number of upper and lower contact sections and wiring sections is reduced, so it is possible to reduce the number of upper and lower contact sections and wiring sections. There is no need to take measures such as widening the pitch.

Note that the vertical and horizontal relationships may be reversed. That is, lead electrode parts are provided at the upper and lower ends of the intermediate glass substrate,
A structure may be adopted in which an extraction electrode portion is provided at the right (left) end of the front glass substrate.

FIG. 5 shows the parts where the substrate is separated (indicated by arrows) when the two-layer liquid crystal display device 21 of the above embodiment is produced by the multi-layer manufacturing method.
FIG. Further, FIG. 6 is a side view showing the parts where the substrate is separated when the conventional two-layer liquid crystal display device 1 is produced by the multi-layer manufacturing method.

As is clear from both figures, according to the above embodiment, the number of dividing points is reduced compared to the conventional multilayer liquid crystal display device, so that productivity and yield can be improved.

In the above embodiment, both the upper layer and lower layer liquid crystal injection holes are provided on the left side, and each glass substrate 22.
Since the left end surfaces of 23 and 24 are also on the same plane, injection and sealing of liquid crystal can be performed in the same steps as in the case of a conventional multilayer liquid crystal display device.

As described above in detail, the multilayer liquid crystal display device of the present invention is characterized in that an extraction electrode portion is provided not only at the upper and lower ends but also at least one of the left and right ends. According to the present invention, it is possible to obtain an extremely useful multilayer liquid crystal display device that can solve the above-mentioned problems of conventional multilayer liquid crystal display devices.

[Brief explanation of the drawing]

Figure 1+11 is a plan view, figure (2) is a sectional view, figure 2 is a plane view, figure 3 (S) is a plan view, figure (2) and 13)
4 is a sectional view, FIG. 4 is a plan view, and FIGS. 5 and 6 are side views. Code 21: +Layer liquid height display device, 22: Front glass substrate, 2
8: Intermediate glass substrate, 24: Rear glass substrate, 25: Front polarizing plate, 26: Rear polarizing plate, 27: Solder for sealing liquid crystal injection hole, 31: Substrate, 82: LSI, 33: Contact part,
34: Wiring section, 35: Rubber connector.

Claims (1)

[Claims] 1. A multilayer liquid crystal display device characterized in that an extraction electrode portion is provided not only at the upper and lower ends but also at least one of the left and right ends.