CN104252067A - Coating device and coating method of seal agent - Google Patents
Coating device and coating method of seal agent Download PDFInfo
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- CN104252067A CN104252067A CN201410471684.3A CN201410471684A CN104252067A CN 104252067 A CN104252067 A CN 104252067A CN 201410471684 A CN201410471684 A CN 201410471684A CN 104252067 A CN104252067 A CN 104252067A
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Abstract
The invention discloses a coating device and a coating method of seal agent. The coating device comprises at least three closed cavities, nozzles and air pressure adjusting structures, wherein the closed cavities are used for storing seal agent, the nozzles are used for spraying the seal agent and communicated with the bottoms of the cavities respectively, and the air pressure adjusting structures are communicated with the cavities. Each cavity is provided with an inlet for inputting the seal agent, the nozzles are linearly and compactly distributed, the air pressure adjusting structures are used for inputting air into the cavities, and the seal agent in the cavities is ejected at the same time. Thus, different types of the seal agent are input into the cavities, the seal agent coated on a parent plate is next to liquid-crystal molecules and two layers of the seal agent of cross lines are easy to cure, and the seal agent not easy to cure between the two layers of the seal agent is protected from contacting the liquid-crystal molecules and the cross lines. Accordingly, adhesion of the seal agent is guaranteed, and the defect caused by contact of the liquid-crystal molecules and the cross lines when the seal agent is short in distance from the liquid-crystal molecules and the cross lines is avoided.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of apparatus for coating and coating process of sealed plastic box.
Background technology
Display panels forms primarily of array base palte, subtend substrate and the liquid crystal molecule between this two substrates.In the actual fabrication process of display panels, first, on two motherboards, respective production is multiple subtend substrate regions of matrix arrangement and multiple array base palte region respectively; Then, a motherboard injects liquid crystal molecule wherein, an other motherboard is coated with sealed plastic box, and carries out box technique; Finally, along each subtend substrate regions and each array base palte region, two motherboards are cut respectively, form multiple little display panels.As shown in Figure 1, multiple display panels (Fig. 1 is for four display panels) can will be cut into the motherboard 101 after box along line of cut (shown in dotted line as shown in Figure 1), each display panels is divided into viewing area 102 and surrounds the non-display area of this viewing area 102, in viewing area, be filled with liquid crystal molecule, in non-display area, be coated with sealed plastic box 103.
In the apparatus for coating of existing sealed plastic box, as shown in Figure 2, comprising the cavity 202 for holding sealed plastic box 201, being provided with the nozzle 203 for spraying sealed plastic box 201 in the bottom of cavity 202.Conventional sealed plastic box is divided into thermohardening type and light-cured type.Wherein, the degree of sticking together of thermohardening type sealed plastic box is higher, and the time completed needed for solidification is longer; The degree of sticking together of light-cured type sealed plastic box is lower, and the time completed needed for solidification is shorter.Based on the different qualities of above-mentioned two kinds of sealed plastic boxs, generally thermohardening type sealed plastic box and light-cured type sealed plastic box are uniformly mixed to form mixed type sealed plastic box, by this mixed type sealed plastic box load apparatus for coating cavity in and sprayed by nozzle.
In the manufacturing process of display panels, be coated with mixed type sealed plastic box and by two motherboards to box after, by before cutting into multiple display panels to the motherboard after box, need to carry out ultraviolet light polymerization process and heat curing process successively to mixed type sealed plastic box, ultraviolet light polymerization process can only make part mixed type sealed plastic box solidify, in follow-up heat curing processing procedure, not completely crued mixed type sealed plastic box easily contacts with line of cut with liquid crystal molecule.Sealed plastic box contacts with liquid crystal molecule can pollute liquid crystal molecule, causes display panels to produce image retention or light leak etc. when display frame bad; Sealed plastic box contacts with line of cut, not only can affect follow-up cutting technique, and the cutting crackle produced in follow-up cutting process also can affect sealed plastic box; Therefore, in order to avoid above-mentioned bad generation, as shown in Figure 1, distance D1 between sealed plastic box and liquid crystal molecule (i.e. viewing area) and the distance D3 between sealed plastic box and line of cut can not be too short, like this, can cause again the non-display area of display panels width (D1+D2+D3, wherein, D2 is the width of sealed plastic box) wider, do not meet the development trend of the narrow frame of display panels.
And, as shown in Figure 2, when utilizing apparatus for coating to be coated with sealed plastic box 201 on motherboard 204, owing to there is certain height between nozzle 203 and motherboard 204, and the adhesive properties of sealed plastic box 201, sealed plastic box 201 is easily assembled at nozzle 203 place, makes the wider width of the sealed plastic box 201 be coated on motherboard 204, can increase the width of the non-display area of display panels further.
Therefore, how optimizing the structure of the apparatus for coating of sealed plastic box, to make the sealed plastic box of coating avoid contacting with line of cut with liquid crystal molecule when shorter with liquid crystal molecule and the spacing of line of cut, is the technical matters that those skilled in the art need solution badly.
Summary of the invention
In view of this, embodiments provide a kind of apparatus for coating and coating process of sealed plastic box, in order to optimize the structure of the apparatus for coating of sealed plastic box, avoid contacting with line of cut with liquid crystal molecule when shorter with liquid crystal molecule and the spacing of line of cut to make the sealed plastic box of coating.
Therefore, embodiments provide a kind of apparatus for coating of sealed plastic box, comprise: at least three for holding sealed plastic box airtight cavitys, for spraying sealed plastic box and the nozzle be communicated with the bottom of each described cavity respectively, and the air pressure adjustment structure be communicated with each described cavity; Wherein, each described cavity is provided with the entrance for passing into sealed plastic box to described cavity; Each described nozzle is closely arranged along straight line;
Described air pressure adjustment structure is used for passing into gas to each described cavity, applies pressure, the sealed plastic box in each described cavity is sprayed by the nozzle of correspondence simultaneously to the sealed plastic box in each described cavity.
In a kind of possible implementation, in the above-mentioned apparatus for coating that the embodiment of the present invention provides, described air pressure adjustment structure, comprising: air pump, and to be arranged between described air pump and each described cavity and with each described cavity multiple first valve one to one.
In a kind of possible implementation, in the above-mentioned apparatus for coating that the embodiment of the present invention provides, described air pressure adjustment structure, also comprises: be arranged at the flow controller between each described first valve and corresponding cavity.
In a kind of possible implementation, in the above-mentioned apparatus for coating that the embodiment of the present invention provides, also comprise: be arranged at the second valve between each described cavity and corresponding nozzle.
In a kind of possible implementation, in the above-mentioned apparatus for coating that the embodiment of the present invention provides, be positioned at the cross-sectional area of two nozzles at two ends, be all less than the cross-sectional area of the nozzle between these two nozzles.
In a kind of possible implementation, in the above-mentioned apparatus for coating that the embodiment of the present invention provides, the quantity of described cavity is three.
The embodiment of the present invention additionally provides a kind of coating process of sealed plastic box, and the apparatus for coating coating sealed plastic box of the above-mentioned sealed plastic box utilizing the embodiment of the present invention to provide, comprising:
A kind of sealed plastic box is passed into respectively to each described cavity; Wherein, the type of sealed plastic box that passes into of at least two described cavitys is different;
Gas is passed into respectively to each described cavity;
Coating sealed plastic box in region to be coated on motherboard.
In a kind of possible implementation, in the above-mentioned coating process that the embodiment of the present invention provides, during along surrounding's coating sealed plastic box of viewing area each on described motherboard, describedly pass into a kind of sealed plastic box respectively to each described cavity, specifically comprise:
Light curable type sealed plastic box is passed into two cavitys being positioned at two ends;
Heat curing-type sealed plastic box is passed into the cavity between these two cavitys.
In a kind of possible implementation, in the above-mentioned coating process that the embodiment of the present invention provides, along described motherboard surrounds all in matrix arrangement the fringe region of viewing area and the row gap location of each described viewing area and row gap location coating sealed plastic box time, describedly pass into a kind of sealed plastic box respectively to each described cavity, specifically comprise:
Light curable type sealed plastic box is passed into two cavitys being positioned at two ends;
Cutting-type sealed plastic box is passed into the cavity between these two cavitys.
In a kind of possible implementation, in the above-mentioned coating process that the embodiment of the present invention provides, described air pressure adjustment structure comprises: air pump, and to be arranged between described air pump and each described cavity and with each described cavity multiple first valve one to one; Describedly pass into gas respectively to each described cavity, specifically comprise:
Opening each described first valve makes described air pump pass into gas in each described cavity.
In a kind of possible implementation, in the above-mentioned coating process that the embodiment of the present invention provides, described air pressure adjustment structure also comprises: be arranged at the flow controller between each described first valve and corresponding cavity; Described pass into gas respectively to each described cavity before, also comprise:
Each described flow controller is regulated to make the air pressure in corresponding described cavity reach default condition.
In a kind of possible implementation, in the above-mentioned coating process that the embodiment of the present invention provides, described apparatus for coating also comprises: be arranged at the second valve between each described cavity and corresponding nozzle; Described coating sealed plastic box in region to be coated on motherboard, specifically comprises:
Open each described second valve makes corresponding nozzle spray sealed plastic box simultaneously;
Mobile described apparatus for coating makes the sealed plastic box of ejection be coated on region to be coated on motherboard.
The apparatus for coating of the above-mentioned sealed plastic box that the embodiment of the present invention provides and coating process, apparatus for coating comprises: at least three for holding sealed plastic box airtight cavitys, for spraying sealed plastic box and the nozzle be communicated with the bottom of each cavity respectively, and the air pressure adjustment structure be communicated with each cavity; Each cavity is provided with the entrance for passing into sealed plastic box; Each nozzle is closely arranged along a straight line; Air pressure adjustment structure is used for passing into gas to each cavity, and the sealed plastic box in each cavity is sprayed simultaneously; Like this; dissimilar sealed plastic box can be passed into multiple cavity; make to be coated in the sealed plastic box on motherboard the sealed plastic box that the two-layer sealed plastic box being close to liquid crystal molecule and line of cut is respectively easily solidification; the sealed plastic box of not easily solidifying between this two-layer sealed plastic box is protected not contact with line of cut with liquid crystal molecule; like this; both can ensure the tackness of sealed plastic box, and can make again sealed plastic box when shorter with the spacing of liquid crystal molecule and line of cut, avoid contacting with line of cut with liquid crystal molecule respectively and causing bad.
Accompanying drawing explanation
Fig. 1 is the existing schematic top plan view to the motherboard after box;
Fig. 2 is the apparatus for coating of existing sealed plastic box schematic diagram when being coated with sealed plastic box on motherboard;
The structural representation of the apparatus for coating of the sealed plastic box that Fig. 3 provides for the embodiment of the present invention;
One of process flow diagram of the coating process of the sealed plastic box that Fig. 4 provides for the embodiment of the present invention;
The process flow diagram two of the coating process of the sealed plastic box that Fig. 5 provides for the embodiment of the present invention;
Fig. 6 a and Fig. 6 b is respectively utilization coating process as shown in Figure 5 on motherboard, is coated with schematic diagram before and after sealed plastic box;
The process flow diagram three of the coating process of the sealed plastic box that Fig. 7 provides for the embodiment of the present invention;
Fig. 8 a and Fig. 8 b is respectively utilization coating process as shown in Figure 7 on motherboard, is coated with schematic diagram before and after sealed plastic box.
Embodiment
Below in conjunction with accompanying drawing, the apparatus for coating of the sealed plastic box that the embodiment of the present invention provides and the embodiment of coating process are described in detail.
The apparatus for coating of a kind of sealed plastic box that the embodiment of the present invention provides, as shown in Figure 3, comprise: at least three for holding sealed plastic box airtight cavitys (Fig. 3 is to illustrate three cavitys A, B and C), for spray sealed plastic box and the nozzle be communicated with the bottom of each cavity respectively (as shown in Figure 3, cavity A is communicated with nozzle a, cavity B is communicated with nozzle b, cavity C is communicated with nozzle c), and the air pressure adjustment structure 301 be communicated with each cavity; Wherein, each cavity is provided with the entrance 302 for passing into sealed plastic box to cavity; Each nozzle is closely arranged along straight line, and the sealed plastic box of two namely adjacent nozzle ejections contacts with each other;
Air pressure adjustment structure 301, for passing into gas to each cavity, applies pressure to the sealed plastic box in each cavity, the sealed plastic box in each cavity is sprayed by the nozzle of correspondence simultaneously.
The above-mentioned apparatus for coating that the embodiment of the present invention provides; dissimilar sealed plastic box can be passed into multiple cavity; make to be coated in the sealed plastic box on motherboard the sealed plastic box that the two-layer sealed plastic box being close to liquid crystal molecule and line of cut is respectively easily solidification; the sealed plastic box of not easily solidifying between this two-layer sealed plastic box is protected not contact with line of cut with liquid crystal molecule; like this; both the tackness of sealed plastic box can have been ensured; can make again sealed plastic box when shorter with the spacing of liquid crystal molecule and line of cut, avoid contacting with line of cut with liquid crystal molecule respectively and causing bad.
In the specific implementation, in the above-mentioned apparatus for coating that the embodiment of the present invention provides, air pressure adjustment structure is generally to the gas that each cavity passes into can not with packaging plastic generation chemical reaction and stability and the good arbitrary gas of security, and such as nitrogen, does not limit at this.
It should be noted that, when air pressure adjustment structure passes into gas to each cavity, what each cavity was arranged is all in air-tight state for the entrance passing into sealed plastic box, to make the gas passed into apply pressure to the sealed plastic box in cavity, thus the sealed plastic box in each cavity is sprayed simultaneously by the nozzle of correspondence.
In the specific implementation, in the above-mentioned apparatus for coating that the embodiment of the present invention provides, as shown in Figure 3, air pressure adjustment structure 301, specifically can comprise: air pump 303, and to be arranged between air pump 303 and each cavity and with each cavity multiple first valve 304 one to one.Particularly, when each first valve 304 is opened, air pump 303 to insufflation gas in the cavity of each first valve 304 correspondence, can apply pressure to the sealed plastic box in each cavity, the sealed plastic box in each cavity is sprayed by the nozzle of correspondence simultaneously.
Further, in order to the air pressure in each cavity critically can be controlled, thus critically adjust the flow that the sealed plastic box in each cavity sprays by the nozzle of correspondence, in the above-mentioned apparatus for coating that the embodiment of the present invention provides, as shown in Figure 3, air pressure adjustment structure 301 can also comprise: be arranged at the flow controller 305 between each first valve 304 and corresponding cavity.Particularly, by regulating each flow controller 305, critically can control the flow being passed into the gas in each cavity by air pump 303, thus critically can control the air pressure in each cavity, and then critically can adjust the flow that the sealed plastic box in each cavity sprays by the nozzle of correspondence.Further, in the specific implementation, the flow control valve of the flow controlling the gas entered in corresponding cavity can be provided with in each flow controller.
In the specific implementation, in the above-mentioned apparatus for coating that the embodiment of the present invention provides, can also comprise: be arranged at the second valve between each cavity and corresponding nozzle.Particularly, when each second valve open, the sealed plastic box in each cavity can be sprayed by the nozzle of correspondence simultaneously.
In the specific implementation, in the above-mentioned apparatus for coating that the embodiment of the present invention provides, as shown in Figure 3, be positioned at the cross-sectional area of two nozzles (i.e. nozzle a and nozzle c) at two ends, be all less than the cross-sectional area of the nozzle (i.e. nozzle b) between these two nozzles.In the specific implementation, the sealed plastic box sprayed due to two nozzles (i.e. nozzle a and nozzle c) being positioned at two ends is close to liquid crystal molecule and line of cut respectively, therefore, in order to avoid sealed plastic box is when shorter with the spacing of liquid crystal molecule and line of cut, contact with line of cut with liquid crystal molecule respectively and cause bad, need the sealed plastic box passing into easily solidification at the cavity (i.e. cavity A and cavity B) that two nozzles (i.e. nozzle a and nozzle c) being positioned at two ends are corresponding, such as: light curable type sealed plastic box, the sealed plastic box of not easily solidifying is passed in the cavity (i.e. cavity B) that the nozzle (i.e. nozzle b) between these two nozzles is corresponding, such as: heat curing-type sealed plastic box or cutting-type sealed plastic box.Because the degree of sticking together of the light curable type sealed plastic box of easily solidifying is lower, the heat curing-type sealed plastic box of not easily solidifying or the degree of sticking together of cutting-type sealed plastic box higher, therefore, in order to ensure to be positioned at two nozzles (i.e. nozzle a and nozzle c) at two ends and the nozzle (i.e. nozzle b) between these two nozzles, to spray the speed of sealed plastic box consistent, needs the cross-sectional area cross-sectional area of two nozzles being positioned at two ends (i.e. nozzle a and nozzle c) being set to the nozzle (i.e. nozzle b) be all less than between these two nozzles.
In the specific implementation, in the above-mentioned apparatus for coating that the embodiment of the present invention provides, as shown in Figure 3, generally the quantity of cavity is set to three.Because the quantity of the cavity comprised in apparatus for coating is more, the quantity of the corresponding nozzle arranged is more, the width of the cross-sectional area of each nozzle is narrower, Painting effect is not good, therefore, generally the quantity of cavity is set to three, correspondence arranges three nozzles, pass at the cavity (i.e. cavity A and cavity B) that two nozzles (i.e. nozzle a and nozzle c) being arranged in two ends are corresponding and easily solidify and the lower light curable type sealed plastic box of degree of sticking together, pass in the cavity (i.e. cavity B) that nozzle (i.e. nozzle b) in centre is corresponding and not easily solidify and the higher heat curing-type sealed plastic box of degree of sticking together or cutting-type sealed plastic box, like this, be coated on degree of sticking together in the sealed plastic box on motherboard compared with heat curing-type sealed plastic box or cutting-type sealed plastic box can ensure the tackness of sealed plastic box, and, be coated in the sealed plastic box on motherboard the light curable type sealed plastic box that the two-layer sealed plastic box being close to liquid crystal molecule and line of cut is respectively easily solidification, the heat curing-type sealed plastic box that this two-layer smooth curable type sealed plastic box can protect centre not easily to solidify or cutting-type sealed plastic box do not contact with line of cut with liquid crystal molecule, thus avoid sealed plastic box when shorter with the spacing of liquid crystal molecule and line of cut, contact with line of cut with liquid crystal molecule respectively and cause bad.
It should be noted that, the air pressure adjustment structure in the above-mentioned apparatus for coating that the embodiment of the present invention provides is not limited to the structure comprising air pump and valve, can also be realized, do not limit at this by other similar modes.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of coating process of sealed plastic box, and the apparatus for coating coating sealed plastic box of the above-mentioned sealed plastic box utilizing the embodiment of the present invention to provide, as shown in Figure 4, specifically comprises the following steps:
S101, pass into a kind of sealed plastic box respectively to each cavity; Wherein, the type of sealed plastic box that passes into of at least two cavitys is different;
S102, pass into gas respectively to each cavity;
S103, region to be coated coating sealed plastic box on motherboard.
In the specific implementation, in the above-mentioned coating process that the embodiment of the present invention provides, during along surrounding's coating sealed plastic box of viewing area each on motherboard, step S101 passes into a kind of sealed plastic box respectively to each cavity, as shown in Figure 5, specifically can realize in the following manner:
S101a, pass into light curable type sealed plastic box to two cavitys being positioned at two ends;
S101b, pass into heat curing-type sealed plastic box to the cavity between these two cavitys.
It should be noted that, in the specific implementation, the step S101a in the above-mentioned coating process that the embodiment of the present invention provides and the execution of step S101b do not have sequencing, do not limit at this.
Particularly, in the above-mentioned coating process that the embodiment of the present invention provides, along surrounding's coating sealed plastic box of viewing area each on motherboard, on the motherboard with four array base palte regions, be coated with sealed plastic box to utilize the apparatus for coating being provided with three nozzles to be described, Fig. 6 a and Fig. 6 b is respectively the schematic diagram be coated with on motherboard 601 before and after sealed plastic box, dotted line in figure is the line of cut on institute edge in follow-up cutting technique, motherboard 601 is divided into four array base palte regions by this line of cut, each array base palte region is divided into viewing area 602 and surrounds the non-display area 603 of this viewing area 602.Apparatus for coating moves along the direction of arrow as shown in Figure 6 a, on motherboard 601 each array base palte region viewing area 602 around be namely coated with sealed plastic box in non-display area 603, as shown in Figure 6 b, the sealed plastic box of coating is three-decker, the two-layer sealed plastic box being close to viewing area 602 and line of cut is respectively easily solidification and the lower light curable type sealed plastic box 604 of degree of sticking together, and middle sealed plastic box is not easily solidify and the higher heat curing-type sealed plastic box 605 of degree of sticking together.
After motherboard is coated with sealed plastic box, need to carry out photocuring process and heat curing process successively to sealed plastic box, wherein, the photocuring processing time is shorter, the quick and complete solidification of two-layer smooth curable type sealed plastic box being close to viewing area and line of cut respectively can be made, and can not contact with line of cut with the liquid crystal molecule of viewing area and cause bad, and, follow-up thermosetting treatment time is longer, in follow-up heat curing processing procedure of carrying out, this two-layer smooth curable type sealed plastic box can also protect middle heat curing-type sealed plastic box to contact with line of cut with the liquid crystal molecule of viewing area and to cause bad.Like this, even if the width of the non-display area in each array base palte region is narrower, the width (shown in D2 as shown in Figure 6 b) of the distance of the sealed plastic box be namely coated with and the liquid crystal molecule of viewing area (shown in D1 as shown in Figure 6 b), sealed plastic box and distance (shown in the D3 as shown in Figure 6 b) sum of sealed plastic box and line of cut less, the sealed plastic box of coating also can be avoided to contact with line of cut with the liquid crystal molecule of viewing area and cause bad.Further, in the sealed plastic box due to coating, comprise the higher heat curing-type sealed plastic box of degree of sticking together, therefore, can ensure that the sealed plastic box be coated with has good tackness.
In the specific implementation, in the above-mentioned coating process that the embodiment of the present invention provides, along motherboard surrounds all in matrix arrangement the fringe region of viewing area and the row gap location of each viewing area and row gap location coating sealed plastic box time, step S101 passes into a kind of sealed plastic box respectively to each cavity, as shown in Figure 7, specifically can realize in the following manner:
S101a, pass into light curable type sealed plastic box to two cavitys being positioned at two ends;
S101c, pass into cutting-type sealed plastic box to the cavity between these two cavitys.
It should be noted that, in the specific implementation, the step S101a in the above-mentioned coating process that the embodiment of the present invention provides and the execution of step S101c do not have sequencing, do not limit at this.
Particularly, in the above-mentioned coating process that the embodiment of the present invention provides, along fringe region motherboard surrounding all viewing areas arranged in matrix, and the row gap location of each viewing area and row gap location coating sealed plastic box, on the motherboard with four array base palte regions, be coated with sealed plastic box to utilize the apparatus for coating being provided with three nozzles to be described, Fig. 8 a and Fig. 8 b is respectively the schematic diagram be coated with on motherboard 801 before and after sealed plastic box, dotted line in figure is the line of cut on institute edge in follow-up cutting technique, motherboard 801 is divided into four array base palte regions by this line of cut, each array base palte region is divided into viewing area 802 and surrounds the non-display area 803 of this viewing area 802.Apparatus for coating moves along the direction of arrow as shown in Figure 8 a, motherboard 801 surrounds the fringe region of the viewing area 802 of all arrangements in matrix, and the row gap location of each viewing area 802 and row gap location coating sealed plastic box, as shown in Figure 8 b, motherboard surround in the sealed plastic box of fringe region coating of all viewing areas 802, the sealed plastic box of next-door neighbour viewing area 802 is easily solidification and the lower light curable type sealed plastic box 804 of degree of sticking together, the sealed plastic box separated by this light curable type sealed plastic box 804 and viewing area 802 is not easily solidify and the higher cutting-type sealed plastic box 805 of degree of sticking together, on motherboard, the row gap location of each viewing area 802 and the sealed plastic box of row gap location coating are three-decker, the two-layer sealed plastic box of next-door neighbour viewing area 802 is easily solidification and the lower light curable type sealed plastic box 804 of degree of sticking together, middle sealed plastic box be can directly cut, not easily solidification and the higher cutting-type sealed plastic box 805 of degree of sticking together, and this cutting-type sealed plastic box 805 is corresponding with line of cut.
After motherboard is coated with sealed plastic box; need to carry out photocuring process and heat curing process successively to sealed plastic box; wherein; the photocuring processing time is shorter; the quick and complete solidification of light curable type sealed plastic box of next-door neighbour viewing area can be made; and can not contact with the liquid crystal molecule of viewing area and cause bad; and; follow-up thermosetting treatment time is longer; in follow-up heat curing processing procedure of carrying out, light curable type sealed plastic box can also protect cutting-type sealed plastic box to contact with the liquid crystal molecule of viewing area and to cause bad.And, after the sealed plastic box of coating is solidified completely, to when carrying out cutting technique to the motherboard after box, in the sealed plastic box that can be coated with along the row gap location of each viewing area and row gap location, the center line of cutting-type sealed plastic box is that line of cut cuts, because cutting-type sealed plastic box can directly be cut, therefore, there will not be sealed plastic box to contact with line of cut and cause bad.Further, when adopting above-mentioned coating process to be coated with sealed plastic box, the motion track of apparatus for coating is shorter, and the efficiency of coating sealed plastic box is higher.In addition, in the sealed plastic box due to coating, comprise the higher cutting-type sealed plastic box of degree of sticking together, therefore, can ensure that the sealed plastic box be coated with has good tackness.
It should be noted that, in the specific implementation, the overall width of the sealed plastic box that motherboard is coated with is equal with the width of the existing sealed plastic box be coated with on motherboard for the above-mentioned coating process that the embodiment of the present invention provides; Or the apparatus for coating provided utilizing the embodiment of the present invention is coated with in the process of sealed plastic box on motherboard, can also pass through suitably to reduce the distance between apparatus for coating and motherboard, to reduce the width of sealed plastic box.
In the specific implementation, in the above-mentioned coating process that the embodiment of the present invention provides, air pressure adjustment structure specifically can comprise: air pump, and to be arranged between air pump and each cavity and with each cavity multiple first valve one to one; Step S102 passes into gas respectively to each cavity, specifically air pump can be made to pass into gas to realize in each cavity by opening each first valve.
In the specific implementation, in the above-mentioned coating process that the embodiment of the present invention provides, air pressure adjustment structure specifically can also comprise: be arranged at the flow controller between each first valve and corresponding cavity; Before execution step S102 passes into gas respectively to each cavity, each flow controller can also be first regulated to make the air pressure in corresponding cavity reach default condition.
In the specific implementation, in the above-mentioned coating process that the embodiment of the present invention provides, apparatus for coating can also comprise: be arranged at the second valve between each cavity and corresponding nozzle; The to be coated region coating sealed plastic box of step S103 on motherboard, specifically can realize in the following manner:
First, open each second valve makes corresponding nozzle spray sealed plastic box simultaneously;
Then, mobile apparatus for coating makes the sealed plastic box of ejection be coated on region to be coated on motherboard.
The apparatus for coating of a kind of sealed plastic box that the embodiment of the present invention provides and coating process, apparatus for coating comprises: at least three for holding sealed plastic box airtight cavitys, for spraying sealed plastic box and the nozzle be communicated with the bottom of each cavity respectively, and the air pressure adjustment structure be communicated with each cavity; Each cavity is provided with the entrance for passing into sealed plastic box; Each nozzle is closely arranged along a straight line; Air pressure adjustment structure is used for passing into gas to each cavity, and the sealed plastic box in each cavity is sprayed simultaneously; Like this; dissimilar sealed plastic box can be passed into multiple cavity; make to be coated in the sealed plastic box on motherboard the sealed plastic box that the two-layer sealed plastic box being close to liquid crystal molecule and line of cut is respectively easily solidification; the sealed plastic box of not easily solidifying between this two-layer sealed plastic box is protected not contact with line of cut with liquid crystal molecule; like this; both can ensure the tackness of sealed plastic box, and can make again sealed plastic box when shorter with the spacing of liquid crystal molecule and line of cut, avoid contacting with line of cut with liquid crystal molecule respectively and causing bad.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (12)
1. the apparatus for coating of a sealed plastic box, it is characterized in that, comprise: at least three for holding sealed plastic box airtight cavitys, for spraying sealed plastic box and the nozzle be communicated with the bottom of each described cavity respectively, and the air pressure adjustment structure be communicated with each described cavity; Wherein, each described cavity is provided with the entrance for passing into sealed plastic box to described cavity; Each described nozzle is closely arranged along straight line;
Described air pressure adjustment structure is used for passing into gas to each described cavity, applies pressure, the sealed plastic box in each described cavity is sprayed by the nozzle of correspondence simultaneously to the sealed plastic box in each described cavity.
2. apparatus for coating as claimed in claim 1, it is characterized in that, described air pressure adjustment structure, comprising: air pump, and to be arranged between described air pump and each described cavity and with each described cavity multiple first valve one to one.
3. apparatus for coating as claimed in claim 2, it is characterized in that, described air pressure adjustment structure, also comprises: be arranged at the flow controller between each described first valve and corresponding cavity.
4. apparatus for coating as claimed in claim 1, is characterized in that, also comprise: be arranged at the second valve between each described cavity and corresponding nozzle.
5. the apparatus for coating as described in any one of claim 1-4, is characterized in that, is positioned at the cross-sectional area of two nozzles at two ends, is all less than the cross-sectional area of the nozzle between these two nozzles.
6. apparatus for coating as claimed in claim 5, it is characterized in that, the quantity of described cavity is three.
7. a coating process for sealed plastic box, utilizes the apparatus for coating coating sealed plastic box of sealed plastic box as claimed in claim 1, it is characterized in that, comprising:
A kind of sealed plastic box is passed into respectively to each described cavity; Wherein, the type of sealed plastic box that passes into of at least two described cavitys is different;
Gas is passed into respectively to each described cavity;
Coating sealed plastic box in region to be coated on motherboard.
8. coating process as claimed in claim 7, is characterized in that, during along surrounding's coating sealed plastic box of viewing area each on described motherboard, describedly passes into a kind of sealed plastic box respectively to each described cavity, specifically comprises:
Light curable type sealed plastic box is passed into two cavitys being positioned at two ends;
Heat curing-type sealed plastic box is passed into the cavity between these two cavitys.
9. coating process as claimed in claim 7, it is characterized in that, along described motherboard surrounds all in matrix arrangement the fringe region of viewing area and the row gap location of each described viewing area and row gap location coating sealed plastic box time, describedly pass into a kind of sealed plastic box respectively to each described cavity, specifically comprise:
Light curable type sealed plastic box is passed into two cavitys being positioned at two ends;
Cutting-type sealed plastic box is passed into the cavity between these two cavitys.
10. the coating process as described in any one of claim 7-9, is characterized in that, described air pressure adjustment structure comprises: air pump, and to be arranged between described air pump and each described cavity and with each described cavity multiple first valve one to one; Describedly pass into gas respectively to each described cavity, specifically comprise:
Opening each described first valve makes described air pump pass into gas in each described cavity.
11. coating processes as claimed in claim 10, it is characterized in that, described air pressure adjustment structure also comprises: be arranged at the flow controller between each described first valve and corresponding cavity; Described pass into gas respectively to each described cavity before, also comprise:
Each described flow controller is regulated to make the air pressure in corresponding described cavity reach default condition.
12. coating processes as described in any one of claim 7-9, it is characterized in that, described apparatus for coating also comprises: be arranged at the second valve between each described cavity and corresponding nozzle; Described coating sealed plastic box in region to be coated on motherboard, specifically comprises:
Open each described second valve makes corresponding nozzle spray sealed plastic box simultaneously;
Mobile described apparatus for coating makes the sealed plastic box of ejection be coated on region to be coated on motherboard.
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| CN201410471684.3A CN104252067A (en) | 2014-09-16 | 2014-09-16 | Coating device and coating method of seal agent |
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| CN201410471684.3A CN104252067A (en) | 2014-09-16 | 2014-09-16 | Coating device and coating method of seal agent |
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Application publication date: 20141231 |