JPS6249330A - Method for forming terminal of liquid crystal display cell - Google Patents

Abstract

PURPOSE:To form highly efficiently conductive paste on a terminal by adhering and assembling plural base boards and cutting off the assembled base board to form the conductive paste on the terminal part of a segment side base board of a liquid crystal display cell. CONSTITUTION:The conductive paste 10 and a sealing agent8 are printed on one glass board 1 and the other glass board 2 respectively through screens. Then, the glass boards 1, 2 are adhered and assembled, the sealing agent 8 and the conductive paste 10 are heated and hardened and then both the glass board 1, 2 are cut off along the cutting parts 9. As the result of cutting, the conductive paste 10 is separated into two parts from the center part and the conductive paste 10 is formed on the whole terminal part 7 of the segment side base board 6 of the liquid crystal display cell. Consequently, processing for printing and hardening the conductive paste on each liquid crystal display cell after cutting the cell can be omitted and the terminal can be highly efficiently formed.

Description

[Detailed Description of the Invention] The present invention relates to a method for forming terminals of a liquid crystal display cell, and an object of the present invention is to improve the efficiency of forming a transparent conductive paste on a terminal when a bin connector is mounted. shall be.

Figure 1 shows the manufacturing process of a conventional liquid crystal display cell. The base treatment film of SIO□ provided on the glass substrates (1) and (2), (4) is the common electrode (5).
and segment electrodes (6) K are oriented films made of polyvinyl alcohol, polyimide, polyamide, etc., which are dried and subjected to orientation treatment after being applied by spinner coating, roll printing, etc.; (5) and (6) are base treatment films ( 3) Common electrode and segment electrode formed on the top, (7) is the segment electrode (6) K conductive terminal part, (8) is a sealant such as epoxy resin, (9) is the glass substrate (1), (2)
) is the cutting part.

Therefore, K for assembling both the glass substrates (1) and (2) on which the alignment film (4) @ is formed is % after screen printing the K sealant (8) on one glass substrate (1).
The reading glass substrate (1) and the other glass substrate (2) are bonded together and bonded together by heating and curing at 120°C to 150°C.

FIG. 2 shows one liquid crystal display cell obtained by cutting the glass substrates (1) and (2) in FIG. 1 along the cutting portions (9) K of each of them before liquid crystal injection. (la) is the common side substrate of the display cell, (
2a) is the segment side substrate of the display cell. By cutting the assembled glasses (1) and (2) shown in FIG. 1, a plurality of liquid crystal display cells shown in FIG. 2 can be placed. As shown in Fig. 3, the conventional method for forming terminals of liquid crystal display cells is to etch a pattern similar to that of the terminal portion () and apply a conductive paste such as a glass plate IICAg to the silicone rubber. Press a stamper made of aluminum to the terminal part (7) of the liquid crystal display cell and print a conductive base (10) such as Ag on the terminal part (7). , and is formed by curing at 150°C.

However, in the conventional method, the glass substrate (1).

Cutting (2)! ! % Apply one conductive paste (10
), which had the disadvantage of poor work efficiency during terminal formation.

The present invention eliminates the above-mentioned drawbacks, and one embodiment thereof will be described below.

FIG. 4 shows the structure before assembling two glass substrates for multi-chip manufacturing.

Components that are the same as those in the conventional example are designated by the same numbers. In the figure, (1) and (2) are glass substrates for multi-chip production, (3) is a base treatment film of 5102, and (4) is an alignment film made of polyvinyl alcohol, polyimide, polyamide, etc.
(5) is a common electrode, (6) is a segment I electrode, (7
)ke segment) [! Terminal part conductive to (6), (8
) is a sealant such as epoxy resin, (9) is a cutting part, and (10) is a conductive paste such as Sho.

Therefore, to explain the terminal forming method of the present invention, first, a conductive paste (10) such as KAg is applied to one glass substrate (1), and a sealant (8) is applied to the other glass substrate (2).
Screen print each. Next, as shown in Fig. 5, the glass substrate (1) and the glass substrate (2) are laminated and assembled, and the sealant (8) and conductive base (10) are crushed by heating at 150°C for 30 minutes. to become next,
As shown in FIG. 6, both glass substrates (1) and (2) are cut along the cutting part (9) in FIG. 5. conductive base)
(10) is separated into two parts from the center, and a terminal part (7) and a conductive paste (10) are formed on the pan of the segment side substrate (6) of the liquid crystal display cell.

As described above, in the present invention, the sealant (8) is applied to two multi-piece substrates (10,000), and the conductive paste (10,000 is applied to the other side).
), and after assembling the two and pasting them together, they are cut to form a conductive paste on the terminals of the segment side substrate of the liquid crystal display cell.
Unlike the conventional example, there is no need to print and harden the conductive paste on each liquid crystal display cell after cutting, and a remarkable effect is achieved in that high efficiency in gauze formation can be achieved.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the main parts of a conventional liquid crystal display cell during the manufacturing process, Fig. 2 is a perspective view of one liquid crystal display cell after cutting the glass substrate of Fig. 1, and Fig. 3 is a perspective view showing a state in which a conductive paste is formed on the terminal portion of the liquid crystal display cell shown in FIG. 2, FIGS. Figure 5 is a cross-sectional view of the main parts showing the two glass substrates printed with conductive paste and conductive paste before they are assembled, Figure 5 is a cross-sectional view of the main parts of the two glass substrates after they are assembled, and Figure 6 is the glass shown in Figure 5. FIG. 3 is a cross-sectional view showing one liquid crystal display cell after cutting the substrate. (1), (2)...Glass substrate. (2a)... Segment side board. (7)...Terminal section. (8)...Sealant, □ (lO)...Conductive paste

Claims (1)

[Claims] A sealant is printed on one of the two multi-chip substrates, and a conductive paste is printed on the other, and after the two multi-chip substrates are laminated and assembled, the segment side substrate of the liquid crystal display cell is cut. A method for forming a terminal of a liquid crystal display cell, comprising forming the conductive paste on a terminal portion of the cell.