CN103176312B - The distributing method of separation material and device - Google Patents

Abstract

The invention discloses a kind of distributing method and device of separation material, its method is: by bringing the Spacer of like charges before ejection in pipeline, spray successively according to pre-set velocity from spout.At the separation material of current ejection, when namely current Spacer sprays from ejiction opening, the intensity of the uniform electric field utilizing deflection coil to form changes the movement locus of current Spacer, intersperses among and accept on substrate after making current Spacer produce deflection under the effect of electric field force.Can not only be eliminated when Spacer scatters by this kind of scheme disclosed in the invention described above is the problem that irregular distribution brings, and by using electric field controls Spacer to scatter in order, achieve the object reducing the development time, reduce cost of manufacture and enhance productivity.

Description

Method and device for distributing interstitial objects

technical field

The invention relates to the field of liquid crystal panel manufacture, and more specifically, relates to a method and device for spreading spacers.

Background technique

In the production process of the liquid crystal panel, in order to ensure the liquid crystal thickness between the color filter substrate and the array substrate, it is necessary to spread Spacer (spacer) on the color filter substrate or the array substrate of the liquid crystal panel, so as to control the color filter substrate and the array substrate. The gap has achieved the purpose of preventing the display image from being blurred due to the uneven thickness of the liquid crystal.

Usually, silicon ball Spacer is spread on the color filter substrate or array substrate; then, the liquid crystal is dropped into the inside of the sealant by using the liquid crystal dropping method; finally, the sealant is hardened as soon as possible by ultraviolet light to form a liquid crystal cell. At this time, the silicon ball spacers scattered in the liquid crystal cell play a role in supporting the thickness of the cell. The silicon ball spacer exists in the SUS (stainless steel) pipe before spreading. And the silicon ball Spacer will collide with the SUS tube wall at high speed under the action of high-pressure gas, so that the silicon ball Spacer will be charged with the same kind of charge. When the silicon ball Spacer is ejected from the SUS pipe outlet, it will disperse due to the principle of repulsion of the same charge.

However, since the above-mentioned method spreads the silicon ball spacer irregularly, the silicon ball spacer is easy to fall into the pixel display area, which will cause problems such as black state light leakage and poor display.

Therefore, in the prior art, the PhotoSpacer technology is used in the production of the color filter side, corresponding to the BM area (frame area or panel black frame area) outside the internal display area, and the photolithography process is used to spread the resin spacer, thereby avoiding the above-mentioned silicon balls. Black state light leakage caused by Spacer.

However, the use of PhotoSpacer technology is not only costly, but also inevitably prolongs the production cycle of the color film, thereby reducing the production efficiency of the liquid crystal panel.

Contents of the invention

In view of this, the purpose of the embodiments of the present invention is to provide a method and device for spreading spacers to overcome the problems of increased cost, long production cycle and low production efficiency caused by the PhotoSpacer technology in the prior art.

In order to achieve the above purpose, embodiments of the present invention provide the following technical solutions:

A device for distributing spacers, comprising:

The ejection outlet connected to the pipe for storing interstitial objects, said interstitial objects are charged with the same kind after collision in the pipe;

a receiving substrate connected at one end to the ejection port;

A set of deflection coils arranged on both sides of the connection between the receiving substrate and the ejection port, when the spacer is ejected from the ejection port, it is controlled by the deflection coils and spreads on the receiving substrate superior.

Preferably, the pipeline for storing the spacer is made of stainless steel SUS.

Preferably, the set of deflection coils includes at least one left deflection coil and one right deflection coil symmetrically.

Preferably, a spacer scattering mark is provided on the other end surface of the receiving substrate.

Preferably, the spacer comprises a spacer composed of a non-metallic spacer material.

Preferably, said spacers comprise spheres of silicon material.

Preferably, the spacer comprises a sphere of resin material.

A method for distributing spacers, applied to the device according to any one of claims 1 to 7, comprising:

The spacers carrying the same charge are ejected sequentially from the ejection port according to the preset speed;

When the current spacer is ejected from the ejection port, the current spacer is deflected by a preset deflection range according to the strength of the uniform electric field formed by the deflection coils located on both sides of the ejection port;

The spacers ejected sequentially from the ejection ports change their motion trajectories according to the corresponding deflection preset range, and are scattered on the receiving substrate in an orderly manner.

Preferably, the uniform electric field formed by the deflection yoke is adjustable;

adjusting the intensity of the uniform electric field according to the current spacers ejected sequentially, and controlling the deflection of the current spacers;

The control strength of the uniform electric field corresponds to different preset deflection amplitudes.

Preferably, the spacers are correspondingly and orderly distributed on the spacer distribution marks of the receiving substrate.

It can be known from the above technical solution that, compared with the prior art, the embodiment of the present invention discloses a method and device for spreading spacers. Spacers (spacers) charged with the same charge in the pipeline before spraying are sprayed out from the nozzle in sequence according to the preset speed. When the currently ejected spacer, that is, when the current spacer is ejected from the ejection port, the strength of the uniform electric field formed by the deflection coil is used to change the trajectory of the current spacer, so that the current spacer is deflected under the action of the electric field force and spreads on the receiving substrate superior. The solution disclosed in the present invention can not only eliminate the problems caused by the irregular scattering of Spacers, but also reduce development time, reduce production costs and improve production by using electric fields to control Spacers for orderly scattering. purpose of efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

Fig. 1 is a schematic structural diagram of a spacer dispersing device disclosed in an embodiment of the present invention;

Fig. 2 is a flowchart of a method for distributing spacers disclosed in an embodiment of the present invention.

Detailed ways

For reference and clarity, descriptions, abbreviations or abbreviations of technical terms used in the following text are summarized as follows:

Spacer: spacer;

SUS pipe: stainless steel pipe.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In order to prevent the Spacer from falling into the pixel display area when the Spacer is scattered irregularly, which will cause black state light leakage and other problems that cause poor display. In the prior art, the PhotoSpacer technology is used in the production process of the color filter side, corresponding to the BM area outside the internal display area (frame area or panel black frame area), and the photolithography process is used to spread the resin spacer, thereby avoiding the above-mentioned silicon ball spacer. The black state light leakage phenomenon caused. However, the use of PhotoSpacer technology is not only costly, but also inevitably prolongs the production cycle of the color film, thereby reducing the production efficiency of the liquid crystal panel.

Therefore, the embodiment of the present invention discloses a new Spacer spreading method and device. Spacers (spacers) charged with the same charge in the SUS (stainless steel) pipe before spraying are sprayed from the nozzle in sequence according to the preset speed. When the currently ejected spacer, that is, when the current spacer is ejected from the ejection port, the intensity of the uniform electric field formed by the deflection coil is used to change the trajectory of the current spacer, so that the current spacer is deflected under the action of the electric field force and spreads on the receiving substrate superior. The solution disclosed in the present invention can not only eliminate the problems caused by the irregular dispersion of Spacers, but also reduce development time, reduce production costs and improve production by using electric fields to control Spacers for orderly dispersion. purpose of efficiency. The specific process is described in detail through the following examples.

Embodiment one

As shown in FIG. 1 , it is a Spacer distributing device disclosed in Embodiment 1 of the present invention, which mainly includes: a pipeline 1 , an ejection port 2 , a receiving substrate 3 and a deflection yoke 4 .

The pipeline 1 is connected with one end of the ejection port 2, and Spacer is stored in the pipeline 1, and the Spacer is charged with the same kind of charge after being collided in the pipeline 1.

The other end of the ejection port 2 is connected to one end of the receiving substrate 3 , and a set of deflection coils 4 are arranged on both sides of the connection between the ejection port 2 and the receiving substrate 3 .

The width of the other end of the receiving substrate 3 not connected to the ejection port 2 is greater than that of the end connected to the ejection port 2;

When the Spacers are ejected sequentially from the ejection port 2 , after receiving the deflection control of the deflection yoke 4 , they are distributed in an orderly manner corresponding to the distribution marks 5 on the receiving substrate 3 .

It should be noted that a set of deflection coils 4 is provided on both sides of the connection between the ejection port 2 and the receiving substrate 3 , specifically including a left deflection coil 41 and a right deflection coil 42 . A uniform electric field can be formed between the left deflection coil 41 and the right deflection coil 42, and the strength of the uniform electric field can be controlled by the deflection coils, so as to regulate the deflection amplitude of the Spacer.

In addition, the above-mentioned Spacer may be specifically composed of non-metal spacer materials; the pipe 1 may be specifically a SUS pipe, but the present invention is not limited thereto.

For the device disclosed in the above-mentioned embodiments of the present invention, the specific process of performing Spacer spreading in the embodiments of the present invention is shown in Figure 2, which mainly includes the following steps:

Step S101 , ejecting the Spacers carrying the same charge from the ejection port sequentially at a preset speed.

Before step S101 is executed, the Spacer carries the same kind of charges after colliding in the SUS pipeline.

Step S102 , when the current Spacer is ejected from the ejection port, the current spacer is controlled to deflect to a preset deflection range according to the strength of the uniform electric field formed by the deflection coils located on both sides of the ejection port.

Step S103 , the current Spacer is scattered on the receiving substrate according to the trajectory after deflecting to a preset range.

For the above execution process, when performing steps S102 and S103, the uniform electric field formed by the deflection yoke can be adjusted, specifically:

Control the deflection coils for the Spacers that are ejected sequentially from the ejection port; for the Spacers that are sequentially ejected, the intensity of the uniform electric field that is regulated at different time intervals corresponds to different preset deflection amplitudes, so that when each Spacer is ejected , are deflected according to the intensity of the current regulated uniform electric field; thus, they are scattered on the receiving substrate in a certain order.

Through the solution disclosed in the above-mentioned embodiments of the present invention, the deflection amplitude of the spacers ejected from the ejection port 2 is controlled by the electric field, and the deflection of the spacers ejected in each time period is controlled according to the preset amplitude, so as to realize the orderly dispersion of the spacers. Moreover, by using the electric field to control the spacers to spread in an orderly manner, the purpose of reducing development time, reducing production costs and improving production efficiency is achieved.

Embodiment two

On the basis of the first embodiment of the present invention, the present invention also discloses a spacer spreading device. The Spacer spreading device disclosed in Embodiment 2 of the present invention has two sets of deflection coils, and other structures are consistent with the spreading device disclosed in Embodiment 1 of the present invention, and will not be repeated here. Adding a set of deflection coils can form a better uniform electric field, and can better control the orderly distribution of Spacers by using the electric field. In addition, regarding the number of sets of deflection coils in the spreading device, the present invention is not limited to the number disclosed above.

It should be noted that, in the second embodiment of the present invention, the Spacer can be specifically a sphere made of silicon material, or a sphere made of resin material; the pipeline 1 in the above-mentioned embodiment 1 can also be specifically a SUS pipeline, for The composition of the pipeline 1 is not limited in the present invention, as long as the Spacer can be charged with the same charge after collision in the pipeline.

For the spherical Spacer made of resin material, the Spacer material dispersed by PhotoSpacer technology in the prior art is also resin. Compared with the general silicon ball Spacer, the shape is larger and the material is softer, and the pixel opening will be occupied during the spreading process. The area of the portion is reduced, resulting in a decrease in the pixel aperture ratio, which leads to a new problem of horizontal stripes when the liquid crystal panel is displayed.

However, using the electric field to control the Spacer for spreading disclosed in the embodiments of the present invention can make the Spacer spread on the receiving substrate in an orderly manner, and will not occupy the area of the pixel opening during the spreading process, therefore, it will not cause pixel openings rate of decline.

In summary:

A new method and device for distributing Spacer disclosed by the above embodiments of the present invention. Spacers (spacers) charged with the same charge in the SUS (stainless steel) pipe before spraying are sprayed from the nozzle in sequence according to the preset speed. When the currently ejected spacer, that is, when the current spacer is ejected from the ejection port, the strength of the uniform electric field formed by the deflection coil is used to change the trajectory of the current spacer, so that the current spacer is deflected under the action of the electric field force and spreads on the receiving substrate superior. The solution disclosed in the present invention can not only eliminate the problems caused by the irregular scattering of Spacers, but also reduce development time, reduce production costs and improve production by using electric fields to control Spacers for orderly scattering. purpose of efficiency.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and for the related part, please refer to the description of the method part.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. A spreading device for spacers, characterized in that it comprises: an ejection port connected to a pipe for storing interstitial objects, said interstitial objects being charged with the same kind after collision in said pipe; a receiving substrate connected at one end to the ejection port; A set of deflection coils arranged on both sides of the connection between the receiving substrate and the ejection port, when the spacer is ejected from the ejection port, it is controlled by the deflection coils and spreads on the receiving substrate superior; Wherein, a set of deflection coils is added on both sides of the connection between the receiving substrate and the ejection port; Wherein, the other end surface of the receiving substrate is provided with a spacer scattering mark, and when the spacer is ejected from the outlet, after receiving the deflection control of the deflection yoke, the other end of the receiving substrate corresponds to The interstitial dispersion marks on the end face are scattered in an orderly manner. 2. The device according to claim 1, characterized in that the pipeline for storing the interstitial matter is made of stainless steel SUS. 3. The device according to claim 1, wherein the set of deflection coils includes at least one left deflection coil and one right deflection coil symmetrically. 4. The device according to any one of claims 1-3, wherein the spacer comprises a spacer made of a non-metal spacer material. 5. The device according to any one of claims 1-3, wherein the spacer comprises a sphere made of silicon material. 6. The device according to any one of claims 1-3, wherein the spacer comprises a sphere made of resin material. 7. A method for distributing spacers, characterized in that it is applied to the device described in any one of claims 1 to 6, comprising: According to the preset speed, the interstices carrying the same charge in the pipeline are ejected from the ejection port in sequence; When the current spacer is ejected from the ejection port, the current spacer is deflected by a preset deflection range according to the strength of the uniform electric field formed by the deflection coils located on both sides of the ejection port; The spacers ejected sequentially from the ejection port change the trajectory according to the corresponding deflection preset range, and spread orderly on the receiving substrate; The spacers are correspondingly and orderly distributed on the spacer distribution marks of the receiving substrate. 8. The method according to claim 7, wherein the uniform electric field formed by the deflection yoke is adjustable; adjusting the intensity of the uniform electric field according to the current spacers ejected sequentially, and controlling the deflection of the current spacers; The control strength of the uniform electric field corresponds to different preset deflection amplitudes.