WO2016145686A1

WO2016145686A1 - Process method for fabricating liquid crystal display device

Info

Publication number: WO2016145686A1
Application number: PCT/CN2015/075825
Authority: WO
Inventors: 谢畅
Original assignee: 深圳市华星光电技术有限公司; 武汉华星光电技术有限公司
Priority date: 2015-03-18
Filing date: 2015-04-03
Publication date: 2016-09-22
Also published as: CN104714324A

Abstract

Provided is a process method for fabricating a liquid crystal display device, comprising: fixing a substrate glass (10) onto a support means (20) (S102); processing the substrate glass (10) to obtain an array substrate (S103); joining the array substrate and a color filter substrate (S104); injecting liquid crystal into the gap between the array substrate and the color filter substrate (S105); sealing the liquid crystal to form a liquid crystal cell (S106); separating the substrate glass (10) from the support means (20) (S107). The method eliminates the need for a process to make a thin-glass substrate after fabricating the liquid crystal cell, thus the production process is simplified.

Description

Manufacturing method of liquid crystal display device

Technical field

The present invention relates to the field of display technologies, and in particular, to a method for fabricating a liquid crystal display device.

Background technique

Flat panel display technology has developed rapidly in the past decade, and has made great progress from the size of the screen to the quality of the display. After continuous efforts, LCD All aspects of performance have reached the level of traditional CRT, and have a great replacement for CRT the trend of. As the production of flat panel display products continues to expand, competition among various manufacturers is becoming increasingly fierce. While continuously improving product performance, manufacturers are constantly striving to reduce the production cost of products, thereby increasing the competitiveness of the market.

At present, in order to reduce the thickness of the panel, the glass substrate is thinned after the cartridge is placed. In order to simplify the production process and save costs, a corresponding scheme for manufacturing a liquid crystal display using ultra-thin glass is proposed. However, in the production process, ultra-thin glass is easily broken and requires high equipment.

In addition, flexible display products have also placed demands on ultra-thin glass. Flexible display devices are capable of bending in many areas that require curved displays, such as smart cards, electronic paper, smart labels, and all areas where conventional display devices can be used. And will occupy a huge market share in the future display product market with its fantastic and beautiful appearance. The preparation of display elements on a flexible substrate necessitates a low stress on the prepared film layer in order to impart flexibility to the fabricated device. Conventional equipment for manufacturing display elements often requires the substrate to be flat during the preparation process. However, due to the large stress of the conventional magnetron sputtering film layer, the flexible substrate tends to warp after the deposition, which seriously affects the subsequent processing. The continuation of the process may even rupture the substrate for the glass substrate.

Therefore, it is necessary to propose a new technical solution to solve the above technical problems.

technical problem

An object of the present invention is to provide a method for fabricating a liquid crystal display device, which aims to solve the problem that the prior art is easy to be broken in the process of manufacturing a liquid crystal display using ultra-thin glass.

Technical solution

A manufacturing method of a liquid crystal display device, wherein the manufacturing method of the liquid crystal display device comprises:

Providing a substrate glass;

Fixing the substrate glass in parallel on the supporting device;

Exposing, developing, and etching the substrate glass to obtain an array substrate;

Bonding the array substrate and the color filter substrate opposite thereto;

Injecting liquid crystal into a gap between the array substrate and the color filter substrate;

Packaging the liquid crystal to form a liquid crystal cell;

Separating the substrate glass from the support device.

Preferably, the manufacturing process of the color filter substrate comprises:

Providing a substrate glass;

Fixing the substrate glass on the support device;

The substrate glass is processed to obtain the color filter substrate.

Preferably, wherein the supporting device is a supporting glass, wherein a thickness of the supporting glass is greater than a thickness of the substrate glass.

Preferably, the step of fixing the substrate glass on the supporting device comprises:

Pasting the substrate glass directly on the support glass;

The step of separating the substrate glass from the supporting device comprises:

The substrate glass or the support glass is pushed to separate the substrate glass from the support glass.

Preferably, the supporting device comprises: a support plate; and a clip disposed around the support plate.

Place the substrate glass on the support plate, and fix the substrate glass on the support plate by the buckles around;

The clip is opened to separate the substrate glass from the support plate.

Preferably, the supporting device comprises: a support plate and an air hole, and the air hole is disposed on the support plate.

Preferably, wherein the air hole comprises a plurality of holes, and the plurality of the air hole intervals are evenly disposed on the support plate.

Depositing the substrate glass on the support plate, evacuating gas between the substrate glass and the support plate through the air hole, and fixing the substrate glass on the support plate by vacuum adsorption force ;

Gas is introduced into the substrate glass and the support plate through the air holes to separate the substrate glass from the support plate.

Preferably, the step of processing the substrate glass to obtain a color filter substrate comprises:

The substrate glass is exposed, developed, and etched to obtain a color filter substrate.

Providing a substrate glass;

Fixing the substrate glass on the support device;

Processing the substrate glass to obtain an array substrate;

Bonding the array substrate and the color filter substrate opposite thereto;

Packaging the liquid crystal to form a liquid crystal cell;

Separating the substrate glass from the support device.

Preferably, the manufacturing process of the color filter substrate comprises:

Providing a substrate glass;

Fixing the substrate glass on the support device;

The substrate glass is processed to obtain the color filter substrate.

Preferably, the supporting device is a supporting glass, wherein the thickness of the supporting glass is greater than the thickness of the substrate glass.

Pasting the substrate glass directly on the support glass;

The clip is opened to separate the substrate glass from the support plate.

Preferably, the air hole comprises a plurality of holes, and the plurality of air holes are evenly disposed on the support plate.

Preferably, the step of processing the substrate glass to obtain an array substrate comprises:

The step of processing the substrate glass to obtain a color filter substrate comprises:

Beneficial effect

Compared with the prior art, the manufacturing method of the liquid crystal display device provided by the present invention, after placing the thin glass on the supporting device and then performing the subsequent processing, after the liquid crystal cell is fabricated, separating the thin glass and the Said support device. Therefore, the present invention solves the problem that it is easily broken during the process of manufacturing a liquid crystal display device using ultra-thin glass. Moreover, the present invention eliminates the process of thinning the glass substrate after the liquid crystal cell is generally manufactured, thereby simplifying the production process, saving cost, and providing a solution for the production of the flexible display product.

DRAWINGS

1 is a schematic flow chart showing an implementation process of a liquid crystal display device according to an embodiment of the present invention;

2 is a schematic flow chart showing an implementation process of a liquid crystal display device according to Embodiment 1 of the present invention;

3 is a schematic structural view of a supporting device according to Embodiment 1 of the present invention;

4 is a schematic flow chart showing an implementation process of a liquid crystal display device according to Embodiment 2 of the present invention;

FIG. 5 is a schematic structural diagram of a support device according to Embodiment 2 of the present invention; FIG.

6 is a schematic flow chart showing an implementation process of a liquid crystal display device according to Embodiment 3 of the present invention;

FIG. 7 is a schematic structural diagram of a support device according to Embodiment 3 of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

The word "embodiment" as used in this specification is intended to serve as an example, instance, or illustration. In addition, the articles "a" or "an" or "an"

In the present invention, after the thin glass is placed on the supporting device and then subjected to subsequent processing, the thin glass and the supporting device are separated after the liquid crystal cell is fabricated. Therefore, the present invention solves the problem that it is easily broken during the process of manufacturing a liquid crystal display device using ultra-thin glass. Moreover, the present invention eliminates the process of thinning the glass substrate after the liquid crystal cell is generally manufactured, thereby simplifying the production process, saving cost, and providing a solution for the production of the flexible display product.

Please refer to FIG. 1 , which is a flow chart for implementing a manufacturing method of a liquid crystal display device according to an embodiment of the present invention, which mainly includes the following steps:

In step S101, a substrate glass is provided;

In step S102, the substrate glass is fixed on the supporting device;

In an embodiment of the invention, the substrate glass is placed in parallel with the support device.

In step S103, the substrate glass is processed to obtain an array substrate;

In the embodiment of the invention, the substrate glass is exposed, developed, and etched to obtain an array substrate.

In step S104, the array substrate and the color filter substrate opposite thereto are bonded together;

In the embodiment of the present invention, the manufacturing process of the color filter substrate includes: providing a substrate glass; fixing the substrate glass on the supporting device; processing the substrate glass to obtain the color filter Light sheet substrate.

In the embodiment of the invention, the substrate glass is exposed, developed, and etched to obtain the color filter substrate.

In step S105, liquid crystal is injected into the gap between the array substrate and the color filter substrate;

In step S106, the liquid crystal is packaged to form a liquid crystal cell;

In step S107, the substrate glass and the supporting device are separated.

In order to explain the technical solution described in the present invention, the following description will be made by way of specific embodiments.

2 is a flow chart for implementing a manufacturing method of a liquid crystal display device according to Embodiment 1 of the present invention, which mainly includes the following steps:

In step S201, a substrate glass is provided;

In step S202, the substrate glass is directly attached to the supporting glass;

In the embodiment of the present invention, please refer to FIG. 3 , which is a schematic structural diagram of a supporting device according to a first embodiment of the present invention. The supporting device is a supporting glass, and the substrate glass 10 is located above the supporting glass 20 . Wherein, the thickness of the supporting glass is greater than the thickness of the substrate glass. For example, the support glass has a thickness of 1 CM and the substrate glass has a thickness of 0.5 MM. However, it can be understood that the thickness of the support glass and the substrate glass can be selected according to actual needs.

In the absence of dust, the substrate glass (ultra-thin glass) and the supporting glass (thick glass) are naturally bonded together due to the force of hydrogen bonding, so that the ultra-thin glass is fixed on the thick glass. Not easy to break.

In step S203, the substrate glass is processed to obtain an array substrate;

In step S204, the array substrate and the color filter substrate opposite thereto are bonded together;

In step S205, liquid crystal is injected into the gap between the array substrate and the color filter substrate;

In step S206, the liquid crystal is packaged to form a liquid crystal cell;

In step S207, the substrate glass or the supporting glass is pushed to separate the substrate glass and the supporting glass.

Please refer to FIG. 4 , which is a flowchart for implementing a manufacturing method of a liquid crystal display device according to Embodiment 2 of the present invention, which mainly includes the following steps:

In step S301, a substrate glass is provided;

In step S302, the substrate glass is placed on the support plate, and the substrate glass is fixed on the support plate by a surrounding clip;

In the embodiment of the present invention, please refer to FIG. 5 , which is a schematic structural diagram of a supporting device according to Embodiment 2 of the present invention. The supporting device includes: a supporting plate 21 and a buckle 22 disposed around the supporting plate. The substrate glass 11 is placed on the support plate 21, and the substrate glass is fixed to the support plate by a surrounding clip 22.

In step S303, the substrate glass is processed to obtain an array substrate;

In step S304, the array substrate and the color filter substrate opposite thereto are bonded together;

In step S305, liquid crystal is injected into the gap between the array substrate and the color filter substrate;

In step S306, the liquid crystal is packaged to form a liquid crystal cell;

In step S307, the clip is opened to separate the substrate glass from the support plate.

Please refer to FIG. 6 , which is a flowchart for implementing a manufacturing method of a liquid crystal display device according to Embodiment 3 of the present invention, which mainly includes the following steps:

In step S401, a substrate glass is provided;

In step S402, the substrate glass is placed on the support plate, and the gas between the substrate glass and the support plate is evacuated through the air hole, and the substrate glass is fixed by the adsorption force of vacuum. The support plate;

In the embodiment of the present invention, please refer to FIG. 7 , which is a schematic structural diagram of a supporting device according to Embodiment 3 of the present invention. The supporting device includes: a supporting plate 33 and an air hole 32 , and the air hole is disposed on the supporting plate. Preferably, the air hole comprises a plurality of holes, and the plurality of air holes are evenly disposed on the support plate. The substrate glass 31 is placed on the support plate 33, and the gas between the substrate glass and the support plate is evacuated through the air hole 32, and the substrate glass is fixed by the adsorption force of vacuum. Support plate.

In step S403, the substrate glass is processed to obtain an array substrate;

In step S404, the array substrate and the color filter substrate opposite thereto are bonded together;

In step S405, liquid crystal is injected into the gap between the array substrate and the color filter substrate;

In step S406, the liquid crystal is packaged to form a liquid crystal cell;

In step S407, Gas is introduced into the substrate glass and the support plate through the air holes to separate the substrate glass from the support plate.

However, it can be understood that, in the process of fabricating the color filter substrate, the manner in which the substrate glass is fixed on the supporting device, and the substrate glass in the above-mentioned fabricated array substrate are fixed on the support The manners on the device are the same and will not be described here. In addition, the manner of separating the color filter substrate and the supporting device is the same as the manner of separating the array substrate from the supporting device, and details are not described herein again.

In summary, the manufacturing method of the liquid crystal display device provided by the embodiment of the present invention is that the thin glass is placed on the supporting device, and then the subsequent processing is performed, and after the liquid crystal cell is fabricated, the thin glass is separated. And the support device. Therefore, the present invention solves the problem that it is easily broken during the process of manufacturing a liquid crystal display device using ultra-thin glass. Moreover, the present invention eliminates the process of thinning the glass substrate after the liquid crystal cell is generally manufactured, thereby simplifying the production process, saving cost, and providing a solution for the production of the flexible display product.

Although the present invention has been shown and described with respect to the embodiments of the invention, The invention includes all such modifications and variations, and is only limited by the scope of the appended claims. With particular regard to the various functions performed by the above-described components, the terms used to describe such components are intended to correspond to any component that performs the specified function of the component (eg, which is functionally equivalent) (unless otherwise indicated) Even if it is structurally not identical to the disclosed structure for performing the functions in the exemplary implementation of the present specification shown herein. Moreover, although specific features of the specification have been disclosed with respect to only one of several implementations, such features may be combined with one or more other implementations as may be desired and advantageous for a given or particular application. Other feature combinations. Furthermore, the terms "comprising," "having," "having," or "include" or "comprising" are used in the particular embodiments or claims, and such terms are intended to be encompassed in a manner similar to the term "comprising."

In the above, the present invention has been disclosed in the above preferred embodiments, but the preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various modifications without departing from the spirit and scope of the invention. The invention is modified and retouched, and the scope of the invention is defined by the scope defined by the claims.

Claims

A manufacturing method of a liquid crystal display device, wherein the manufacturing method of the liquid crystal display device comprises:

Providing a substrate glass;

Fixing the substrate glass in parallel on the supporting device;

Exposing, developing, and etching the substrate glass to obtain an array substrate;

Bonding the array substrate and the color filter substrate opposite thereto;

Injecting liquid crystal into a gap between the array substrate and the color filter substrate;

Packaging the liquid crystal to form a liquid crystal cell;

Separating the substrate glass from the support device.
The manufacturing process of the liquid crystal display device according to claim 1, wherein the manufacturing process of the color filter substrate comprises:

Providing a substrate glass;

Fixing the substrate glass on the support device;

The substrate glass is processed to obtain the color filter substrate.
The manufacturing method of a liquid crystal display device according to claim 2, wherein the supporting device is a supporting glass, wherein a thickness of the supporting glass is larger than a thickness of the substrate glass.
The method of fabricating a liquid crystal display device according to claim 3, wherein the step of fixing the substrate glass on the supporting device comprises:

Pasting the substrate glass directly on the support glass;

The step of separating the substrate glass from the supporting device comprises:

The substrate glass or the support glass is pushed to separate the substrate glass from the support glass.
The manufacturing method of a liquid crystal display device according to claim 2, wherein the supporting device comprises: a support plate; and a clip disposed around the support plate.
The method of fabricating a liquid crystal display device according to claim 5, wherein the step of fixing the substrate glass on the supporting device comprises:

Place the substrate glass on the support plate, and fix the substrate glass on the support plate by the buckles around;

The step of separating the substrate glass from the supporting device comprises:

The clip is opened to separate the substrate glass from the support plate.
The manufacturing method of a liquid crystal display device according to claim 2, wherein the supporting device comprises: a support plate and a gas hole, and the air hole is disposed on the support plate.
The manufacturing method of a liquid crystal display device according to claim 7, wherein the air holes comprise a plurality of, and the plurality of the air holes are evenly disposed on the support plate.
The manufacturing method of the liquid crystal display device according to claim 7 or 8, wherein the step of fixing the substrate glass on the supporting device comprises:

Depositing the substrate glass on the support plate, evacuating gas between the substrate glass and the support plate through the air hole, and fixing the substrate glass on the support plate by vacuum adsorption force ;

The step of separating the substrate glass from the supporting device comprises:

Gas is introduced into the substrate glass and the support plate through the air holes to separate the substrate glass from the support plate.
The method of fabricating a liquid crystal display device according to claim 2, wherein the step of processing the substrate glass to obtain a color filter substrate comprises:

The substrate glass is exposed, developed, and etched to obtain a color filter substrate.
A manufacturing method of a liquid crystal display device, wherein the manufacturing method of the liquid crystal display device comprises:

Providing a substrate glass;

Fixing the substrate glass on the support device;

Processing the substrate glass to obtain an array substrate;

Bonding the array substrate and the color filter substrate opposite thereto;

Injecting liquid crystal into a gap between the array substrate and the color filter substrate;

Packaging the liquid crystal to form a liquid crystal cell;

Separating the substrate glass from the support device.
The manufacturing process of the liquid crystal display device of claim 11, wherein the manufacturing process of the color filter substrate comprises:

Providing a substrate glass;

Fixing the substrate glass on the support device;

The substrate glass is processed to obtain the color filter substrate.
The method of fabricating a liquid crystal display device according to claim 12, wherein the supporting device is a supporting glass, wherein a thickness of the supporting glass is larger than a thickness of the substrate glass.
The method of fabricating a liquid crystal display device according to claim 13, wherein the step of fixing the substrate glass on the supporting device comprises:

Pasting the substrate glass directly on the support glass;

The step of separating the substrate glass from the supporting device comprises:

The substrate glass or the support glass is pushed to separate the substrate glass from the support glass.
The manufacturing method of a liquid crystal display device according to claim 12, wherein the supporting device comprises: a support plate; and a clip disposed around the support plate.
The method of fabricating a liquid crystal display device according to claim 15, wherein the step of fixing the substrate glass on the supporting device comprises:

Place the substrate glass on the support plate, and fix the substrate glass on the support plate by the buckles around;

The step of separating the substrate glass from the supporting device comprises:

The clip is opened to separate the substrate glass from the support plate.
The manufacturing method of a liquid crystal display device according to claim 12, wherein the supporting device comprises: a support plate and a gas hole, and the air hole is disposed on the support plate.
The manufacturing method of a liquid crystal display device according to claim 17, wherein the air holes comprise a plurality of, and the plurality of the air holes are evenly disposed on the support plate.
The method of fabricating a liquid crystal display device according to claim 17 or 18, wherein the step of fixing the substrate glass on the supporting device comprises:

Depositing the substrate glass on the support plate, evacuating gas between the substrate glass and the support plate through the air hole, and fixing the substrate glass on the support plate by vacuum adsorption force ;

The step of separating the substrate glass from the supporting device comprises:

Gas is introduced into the substrate glass and the support plate through the air holes to separate the substrate glass from the support plate.
The method of fabricating a liquid crystal display device according to claim 12, wherein the step of processing the substrate glass to obtain an array substrate comprises:

Exposing, developing, and etching the substrate glass to obtain an array substrate;

The step of processing the substrate glass to obtain a color filter substrate comprises:

The substrate glass is exposed, developed, and etched to obtain a color filter substrate.