JPS58205132A - Production of liquid crystal display - Google Patents

Abstract

PURPOSE:To eliminate the deterioration in orientation, the peeling of adhered parts, etc. even at high temp. and high humidity by masking a sealing part of an electrode substrate after a horizontal orientation treatment and applying a vertical orientation treatment over the entire surface of the substrate then removing the mask, providing an adhesive agent in the removed part and sealing the same to a counter substrate. CONSTITUTION:After an electrode 12 is formed on a glass substrate 11, a horizontally oriented layer 2 is formed over the entire surface. Etching resist 3 is printed on the sealing part of the electrode 1 and is dried, whereafter a vertically oriented layer 4 is formed over the entire surface. The resist 3 is removed by solvent washing and a thermosetting epoxy resin adhesive agent 5 is coated on the sealing part. A counter electrode substrate produced with the similar stage is adhered thereto whereby a liquid crystal package is manufactured. Finally a liquid crystal is injected therein and an injection port is sealed to obtain a liquid crystal display. The peeling between the substrate 1 and the adhesive agent 5, the leakage of the liquid crystal, etc. are obviated and the deterioration in orientation is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention provides a vertically distributed f! The present invention relates to a method of manufacturing a liquid crystal display device using an electrode substrate subjected to JI.

[Technical background of the invention and its problems]

As is well known, in the case of using the @@A substrate on which circuits and electrodes for controlling Mototomo are formed in the liquid crystal display 1, it is necessary to hold the liquid crystal between −
There is a difficult problem when using a vertical distribution agent as a double distribution treatment agent; the polarized substrate that has been subjected to distribution treatment has extremely poor wettability. Similarly, the wettability of the adhesive is +;, = <, because the adhesive is leaking, making it impossible to create an airtight chamber, or because the chemical and physical bond between the electrode substrate and the adhesive is weak. (-Problems such as peeling between the electrode substrate and adhesive and liquid crystal peeling occur.) As a method to improve these problems,
There is a method of masking the sealing part. In other words, the sealing part 11 of the electrode substrate is masked in advance with photoresist, etc., and after performing the same vertical IV process, the resist of the I-sealing part 11 is removed, and the sealing part W! = i This is a method of coating and sealing the adhesive. However, even with this method, there were problems such as the alignment stains being sweet when removing the resist and causing alignment smearing. When vertical dispensing is applied to the two sandwiched A substrates, the strength of the electrode substrate due to the adhesive is sufficient (-) and (
It is an object of the present invention to provide a method for assembling a highly reliable liquid crystal display device in which the wiring portion 5 does not become soiled.

[Summary of the invention]

In the present invention, a mask 4 of two unipolar bases (2 horizontal distribution treatment layers are provided in advance, and the sealing 11 portion of this electrode substrate + etch resist) 4 that sandwich the liquid crystal is formed, and the entire surface C2 is vertically distributed. Form a reprocessing layer. Then, remove the mask, seal the opposite electrode substrate by pressing the sealing part C, and then darken the sealed monopolar substrate: Inject liquid crystal. [Invention [Effect] According to the present invention C, by performing the horizontal wiring treatment on the entire Km substrate [IJl bi-horizontal wiring treatment], when removing the mask hR, there is no dirt on the vertical wiring layer◎The reason for this is currently known. But still! □Although it has not been elucidated, it is experimentally clear that there is a clear difference in the contamination of the subsequent Kei l distribution 1-≦2 depending on the presence or absence of horizontal routing treatment (- and the present invention ≦2) It is possible to obtain a liquid crystal display device with good display quality without any kinks or alignment sag.From the mask C2, the vertical arrangement doves are not formed in the sealing tr part C-, and the horizontal arrangement layer is formed in this part. Therefore, the relative strength is sufficiently strong l(J,
There will be no peeling between the substrate and the adhesive, and no liquid crystal leakage.Another new invention in history [Liquid crystal display ii! [Ha, 1
ltI High temperature used for routine environmental testing.

No alignment deterioration occurs even under business conditions ζ2 (3i) The reliability functions as a nuisance.

[Example of C Ming]

Embodiments of the present invention will be described with reference to FIGS. 1 to 7.

Glass substrate 1. c two electrodes 1. First, the entire surface of the electrode substrate 1 constituting the transparent panel formed by the above method was treated with a horizontal alignment treatment agent (al, -24804T3).
(manufactured by Etsu Kagaku Co., Ltd.) by horizontal dispensing -2'%0: Formation (Figure 2). Next ≦ 2 electrodes, 1 Sealing part I of electrode substrate l Etching resist 3 (×-77
(manufactured by Tai-Ingi Co., Ltd.) was printed on the printing screen C2, and it was clearly shown (Fig. 183).
C-805 manufactured by Sumitomo 3M Co., Ltd.) (two-strand vertical distribution layer 4
(4th evil).

Then, the resist 3 on the electrode substrate was cleaned by ultra i-wave cleaning I.
After the resist has been removed (Fig. 5), a bithermosetting epoxy resin adhesive 5 is applied on the electrode substrate from which the resist has been removed (Fig. 6).

And this is the opposite 'Iii! that went through the same process! ! l
I! & Bonded and cured at 120°C for 1 hour≦2 to seal the two electrode substrates to form a liquid crystal device (No. 7
figure).

In this way, the liquid crystal formed by C2 was injected and a liquid crystal display panel was made.The display quality of this liquid crystal display panel was good with no uneven wiring.In addition, a sharp blade was applied to check the electrical contact strength. #I checked the condition of the J ship lfL. As a result, the glass was broken and no peeling occurred between the Changchun agent and the glass substrate. Further, even when this liquid crystal display panel was left in an environment of 80°C and 95% relative humidity for 62,100 hours, no deterioration of electrophilic properties was observed. 2.'IILfi board opening horizontal layout processing-[
[Secondly, the display quality of the display panel is good.

In addition, by masking the seal ah, no defects in the seal are observed, and a display panel with high occupancy can be created.The two electrode substrates facing each other constitute a transmissive display device. (2) It is necessary that both substrates be transparent, and (1) When configuring a reflective display device, it is good for at least one of the substrates to be transparent. It goes without saying that when C2 is only one electrode substrate, the treatment of that electrode substrate (C2 only needs to be applied according to the present invention).

Figures 1 to 7 show an example of the liquid crystal display panel of an unconventional example. Roto which is a diagram for explaining the M manufacturing process: - Polar substrate, 2... Horizontal distribution IW1.3... Etching resist (mask), 4... Vertical distribution layer, 5
and others·.

Bonding agent.

Sole representative Patent attorney Suzu Ushikihiko

Claims (1)

[Claims] The sealing portion of the electrode substrate is masked and the entire surface thereof is subjected to vertical alignment treatment, the mask is removed, and this mask-removed portion C2 is provided with an adhesive to connect the opposing electrode +! Seal the plates and inject C2 liquid crystal between the opposing electrode substrates to manufacture a display device. Before forming the city record mask, perform horizontal alignment treatment on the entire surface of the electrode substrate in advance. A method for manufacturing a liquid crystal display device, characterized in that: