WO2020237568A1

WO2020237568A1 - Manufacturing apparatus and method for flexible liquid crystal display screen

Info

Publication number: WO2020237568A1
Application number: PCT/CN2019/089259
Authority: WO
Inventors: 吴志鸿; 杨柏儒; 张雅帝; 龚又又
Original assignee: 京东方科技集团股份有限公司
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-12-03
Also published as: CN110337607B; CN110337607A

Abstract

A manufacturing apparatus (100) for a flexible liquid crystal display screen, comprising: a bonding device (1) comprising a first roll shaft (11) and a second roll shaft (12), wherein the first roll shaft (11) is configured to convey a first flexible substrate (a), the second roll shaft (12) is configured to convey a second flexible substrate (b), a set distance exists between the first roll shaft (11) and the second roll shaft (12), and the first and second roll shafts rotate toward each other to enable the first flexible substrate (a) and the second flexible substrate (b) to be bonded; and a liquid crystal coating device (2) disposed above the bonding device (1) and configured to dropwise inject liquid crystal between the first flexible substrate (a) and the second flexible substrate (b).

Description

Preparation device and preparation method of flexible liquid crystal display

Technical field

The present disclosure relates to the field of display technology, and in particular to a preparation device and a preparation method of a flexible liquid crystal display screen.

Background technique

Flexible display screens are currently a hot spot in the display field. They are deformable, bendable, small in size, portable and easy to carry. Among them, flexible liquid crystal displays are widely used due to their mature production technology and low cost.

Summary of the invention

In one aspect, a device for preparing a flexible liquid crystal display screen is provided, which includes: laminating equipment and liquid crystal coating equipment. The laminating equipment includes a first roller and a second roller, the first roller is configured to convey the first flexible substrate, and the second roller is configured to convey the second flexible substrate; the first roller and the second roller There is a set distance between the shafts, and the two rotate toward each other, so that the first flexible substrate and the second flexible substrate are attached. The liquid crystal coating device is arranged above the laminating device and is configured to drip liquid crystal between the first flexible substrate and the second flexible substrate.

In some embodiments, the device for preparing the flexible liquid crystal display screen further includes: a frame sealant coating device, which is arranged on the conveying path of the first flexible substrate to the first roller, and is configured to convey to the first flexible substrate The surface is coated with frame sealant.

In some embodiments, the first flexible substrate includes at least one display screen unit area, and each display screen unit area in the at least one display screen unit area includes a first set of opposite sides, and the first set of opposite sides is parallel to the first set of opposite sides. The conveying direction of a flexible substrate. The frame sealant coating equipment includes: at least two first frame sealant coating components configured to coat the first group of opposite side frame sealants in each display screen unit area.

In some embodiments, each of the at least one display screen unit area further includes a second set of opposite sides, and the second set of opposite sides is perpendicular to the conveying direction of the first flexible substrate. The frame sealant coating equipment further includes: a second frame sealant coating component configured to coat the second set of opposite side frame sealants of each display screen unit area.

In some embodiments, the device for preparing the flexible liquid crystal display screen further includes: a coating control component connected to the second frame sealant coating component and configured to control the moving direction and moving speed of the second frame sealant coating component , And compensate for the moving direction and moving speed, so that the applied second group of opposite side frame sealant is perpendicular to the conveying direction of the first flexible substrate, and the first group of opposite side frame sealant is applied with The coating of the frame sealant on the opposite side of the second group is completed simultaneously.

In some embodiments, the device for preparing the flexible liquid crystal display screen further includes: a first unwinding device, a second unwinding device, and a winding device. The first unwinding device is arranged on the side of the first roller shaft away from the second roller shaft, and is configured to wind the first flexible substrate and rotate in the same direction as the first roller shaft to transfer the first flexible substrate to the second roller shaft. A roller; the second unwinding device is arranged on the side of the second roller away from the first roller, and is configured to wind the second flexible substrate, and rotate in the same direction as the second roller, and the second flexible lining The bottom is transferred to the second roller; the winding device is arranged below the laminating device and is configured to wind the first flexible substrate and the second flexible substrate that are bonded to each other.

In some embodiments, the device for preparing the flexible liquid crystal display screen further includes: a frame sealant curing device, which is arranged between the laminating device and the winding device, and is configured to make the first flexible substrate and the second The sealant between the flexible substrates is cured.

In some embodiments, the frame sealant curing device includes: a support member and a plurality of curing lamps, the support member is a frame-shaped structure, and is arranged on the transfer path between the laminating device and the winding device, and is configured to be mutually attached to each other. The combined first flexible substrate and second flexible substrate pass through the inside of the frame structure. The plurality of curing lamps are arranged on the inner wall of the supporting member and are configured to irradiate the first flexible substrate and the second flexible substrate passing through the inside of the frame structure, so that the first flexible substrate and the second flexible substrate The sealant between the bottoms is cured.

In some embodiments, the device for preparing the flexible liquid crystal display screen further includes: at least one pressure sensor and a distance control component. The at least one pressure sensor is disposed on the surface of the first roller shaft or the second roller shaft, and is configured to detect the pressure between the first flexible substrate and the first roller shaft, or the second flexible substrate and the second roller shaft The pressure between. The distance control component is connected to the at least one pressure sensor, and is configured to adjust the distance between the first roller shaft and the second roller shaft according to the pressure value detected by the at least one pressure sensor, so that the first flexible substrate and The pressure between the first roller and the pressure between the second flexible substrate and the second roller are maintained within the set pressure range.

On the other hand, a method for manufacturing a flexible liquid crystal display is provided, which is applied to the manufacturing device of the flexible liquid crystal display as described in the above technical solution. The manufacturing method includes: making the first roller of the laminating device of the manufacturing device The shaft and the second roller shaft rotate toward each other; the first flexible substrate is transferred to the first roller shaft, and the second flexible substrate is transferred to the second roller shaft; the liquid crystal coating equipment of the preparation device is transferred to the first flexible substrate The liquid crystal is dripped between the liquid crystal and the second flexible substrate; the first flexible substrate and the second flexible substrate after the liquid crystal are dripped are attached to each other through the first roller shaft and the second roller shaft rotating toward each other.

In some embodiments, the preparation device further includes a frame sealant coating device, and the preparation method further includes: in the process of transferring the first flexible substrate to the first roller, the frame sealant coating device The surface of a flexible substrate is coated with frame sealant.

In some embodiments, the sealant coating device includes at least two first sealant coating components. The first flexible substrate includes at least one display screen unit area, each of the at least one display screen unit area includes a first set of opposite sides, and the first set of opposite sides is parallel to the transmission of the first flexible substrate direction. The step of applying the frame sealant to the surface of the first flexible substrate through a frame sealant coating device includes: coating the surface of the first flexible substrate through the at least two first frame sealant coating components The first set of sealant on opposite sides of each display screen unit area. The preparation method further includes: preparing a microcup structure layer on the surface of the second flexible substrate before the step of transferring the second flexible substrate to the second roller shaft.

In some embodiments, the frame sealant coating equipment includes at least two first frame sealant coating components and a second frame sealant coating component, and the preparation device further includes a coating control component. The first flexible substrate includes at least one display screen unit area, and each display screen unit area in the at least one display screen unit area includes a first group of opposite sides and a second group of opposite sides, and the first group of opposite sides is parallel to the first group of opposite sides. The conveying direction of a flexible substrate, and the opposite sides of the second group are perpendicular to the conveying direction of the first flexible substrate.

The step of applying the frame sealant to the surface of the first flexible substrate through a frame sealant coating device includes: coating the surface of the first flexible substrate through the at least two first frame sealant coating components The first set of opposite side sealant for each display screen unit area; the second set of opposite side seals for each display screen unit area are coated on the surface of the first flexible substrate through the second sealant coating component For sealant, during the coating process, the coating control component controls the movement direction and speed of the second sealant coating component, and compensates for the movement direction and speed to make the second set of coating The frame sealing glue is perpendicular to the conveying direction of the first flexible substrate, and the coating of the frame sealing glue on the opposite sides of the first group and the application of the frame sealing glue on the opposite sides of the second group are completed at the same time.

The preparation method further includes: preparing a microcup structure layer on the surface of the second flexible substrate before the step of transferring the second flexible substrate to the second roller shaft. Alternatively, before the step of dripping liquid crystal between the first flexible substrate and the second flexible substrate through the liquid crystal coating device, the method further includes: mixing spacers in the liquid crystal.

In some embodiments, the preparation device further includes a sealant curing device. The preparation method further includes: curing the frame sealant between the first flexible substrate and the second flexible substrate that are attached to each other through a frame sealant curing device.

In some embodiments, the preparation device further includes at least two pressure sensors and a distance control component. The preparation method further includes: in the process of laminating, real-time detection of the pressure between the first flexible substrate and the first roller, or between the second flexible substrate and the second roller, by at least one pressure sensor The pressure; and the detected pressure value is transmitted to the distance control component. The distance control component receives the detected pressure value, and determines the relationship between the detected pressure value and the set pressure range; if the detected pressure value is within the set pressure range, the first roller shaft and the second roller shaft are maintained If the detected pressure value is greater than the upper limit of the set pressure range, the distance between the first roller shaft and the second roller shaft will increase; if the detected pressure value is less than the set pressure value The lower limit of the pressure range reduces the distance between the first roller shaft and the second roller shaft.

Description of the drawings

In order to explain the technical solutions in the embodiments of the present disclosure more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and for those of ordinary skill in the art, other drawings may be obtained based on these drawings.

FIG. 1 is a schematic diagram of a structure of a manufacturing device of a flexible liquid crystal display screen according to some embodiments;

FIG. 2A is another schematic diagram of a structure of a manufacturing device of a flexible liquid crystal display according to some embodiments;

FIG. 2B is a schematic diagram of another structure of a manufacturing device of a flexible liquid crystal display according to some embodiments;

Figure 3 is a top view of a first flexible substrate according to some embodiments;

4A is a top view of a manufacturing device of a flexible liquid crystal display screen according to some embodiments;

FIG. 4B is another top view of a manufacturing apparatus of a flexible liquid crystal display screen according to some embodiments;

4C is still another top view of the manufacturing device of the flexible liquid crystal display screen according to some embodiments;

4D is still another top view of the manufacturing device of the flexible liquid crystal display screen according to some embodiments;

5A is a top view of a curing device for frame sealant in a manufacturing device of a flexible liquid crystal display according to some embodiments;

Fig. 5B is another top view of the frame sealant curing device in the manufacturing device of the flexible liquid crystal display according to some embodiments

FIG. 6 is a flow chart of a method for manufacturing a flexible liquid crystal display screen according to some embodiments;

FIG. 7 is another flowchart of a method for manufacturing a flexible liquid crystal display screen according to some embodiments;

FIG. 8 is another flowchart of a method for manufacturing a flexible liquid crystal display screen according to some embodiments;

FIG. 9 is still another flowchart of a method for manufacturing a flexible liquid crystal display screen according to some embodiments;

FIG. 10 is still another flowchart of a method for manufacturing a flexible liquid crystal display screen according to some embodiments;

FIG. 11 is still another flowchart of a method for manufacturing a flexible liquid crystal display screen according to some embodiments.

Detailed ways

Hereinafter, some embodiments of the present disclosure will be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art fall within the protection scope of the present disclosure.

The flexible liquid crystal display screen generally includes: a first flexible substrate, a second flexible substrate and a liquid crystal layer. Wherein, the first flexible substrate and the second flexible substrate are arranged oppositely, and a certain gap is maintained between the two, and the liquid crystal layer is filled in the gap between the first flexible substrate and the second flexible substrate. In some examples, the method for preparing a flexible liquid crystal display includes the following process: coating a frame sealant in the peripheral area of one side surface of the first flexible substrate, and dripping liquid crystal on one side surface of the second flexible substrate Then, the first flexible substrate and the second flexible substrate are aligned and bonded, and the frame sealant is cured. The whole process includes multiple processes, which is cumbersome, resulting in low production efficiency of the flexible liquid crystal display, and long time-consuming, which is not conducive to mass production of the flexible liquid crystal display.

Some embodiments of the present disclosure provide an apparatus 100 for preparing a flexible liquid crystal display. As shown in FIG. 1, the apparatus 100 for preparing a flexible liquid crystal display includes: a laminating device 1 and a liquid crystal coating device 2.

Among them, the laminating device 1 includes a first roller 11 and a second roller 12. The first roller 11 is configured to convey the first flexible substrate a, and the second roller 12 is configured to convey the second flexible substrate b. There is a set distance between the first roller shaft 11 and the second roller shaft 12, that is, there is a gap between them, and they rotate towards each other, which allows the first flexible substrate a and the second flexible substrate b to follow The rotation of the respective rollers enters between the first roller 11 and the second roller 12, so that the first flexible substrate a and the second flexible substrate b are bonded together. Illustratively, the first roller shaft 11 rotates in a clockwise direction, and the second roller shaft 12 rotates in a counterclockwise direction.

It should be noted that, in some embodiments, the set distance between the first roller 11 and the second roller 12 depends on the cell thickness of the flexible liquid crystal display to be prepared. Exemplarily, the set distance is equal to the cell thickness of the flexible liquid crystal display to be prepared. Here, the cell thickness of the flexible liquid crystal display screen refers to the thickness of a liquid crystal cell formed by packaging the first flexible substrate a and the second flexible substrate b.

In some embodiments, the axis of the first roller shaft 11 and the axis of the second roller shaft 12 are parallel to each other, which can ensure that the first flexible substrate a transferred to the first roller shaft 11 and the second roller shaft 12 The edges of the second flexible substrate b are aligned.

The liquid crystal coating device 2 is disposed above the laminating device 1 and is configured to drip liquid crystal 201 between the first flexible substrate a and the second flexible substrate b.

In some embodiments, the plane determined by the axis of the first roller 11 and the axis of the second roller 12 of the laminating device 1 is set as a reference surface, and the orthographic projection of the liquid crystal coating device 2 on the reference surface The center of is within the gap between the first roller 11 and the second roller 12, so that the liquid crystal dropped by the liquid crystal coating device 2 can be dripped more effectively on a flexible substrate a and a second flexible substrate between b.

As some possible designs, the liquid crystal coating device 2 can be implemented with a liquid crystal dripper, by controlling the size of the opening of the liquid crystal dripper, and/or by controlling the pressure on the liquid crystal in the liquid crystal dripper to control the dripped The volume and rate of the liquid crystal 201 are such that the volume and rate of the liquid crystal 201 dripped between the first flexible substrate a and the second flexible substrate b by the liquid crystal coating device 2 is the same as that of the first flexible substrate a and the second flexible substrate b. The transmission speed of the bottom b is matched to make the liquid crystal dripping effect better.

When preparing a flexible liquid crystal display using the flexible liquid crystal display manufacturing apparatus 100 provided by an embodiment of the present disclosure, the first flexible substrate a and the second flexible substrate b are respectively transferred through the first roller 11 and the second roller 12 , The first flexible substrate a and the second flexible substrate b meet between the first roller shaft 11 and the second roller shaft 12, and enter the gap between the first roller shaft 11 and the second roller shaft 12, so that the first A roller 11 and a second roller 12 exert a squeezing effect on the first flexible substrate a and the second flexible substrate b, so that the first flexible substrate a and the second flexible substrate b can be bonded together . At the same time, the liquid crystal coating device 2 arranged above the laminating device 1 drips the liquid crystal 201 between the first flexible substrate a and the second flexible substrate b. In this way, using the flexible liquid crystal display manufacturing device 100, the liquid crystal dripping, the first flexible substrate and the second flexible substrate are bonded simultaneously, and the liquid crystal dripping and the flexible substrate are bonded at one time. The preparation efficiency of the flexible liquid crystal display is improved.

Moreover, since the liquid crystal is directly dripped between the first flexible substrate a and the second flexible substrate b through the liquid crystal coating device 2, under the action of gravity, the liquid crystal 201 gradually fills the first flexible substrate a from top to bottom. In the entire space between the first flexible substrate a and the second flexible substrate b, the gas between the first flexible substrate a and the second flexible substrate b can be gradually squeezed away from top to bottom during this process, thereby reducing the liquid crystal 201 The generation of bubbles in the liquid crystal display can improve the uniformity of the liquid crystal in the prepared flexible liquid crystal display screen, thereby improving the display quality of the flexible liquid crystal display screen.

In the manufacturing apparatus 100 of the flexible liquid crystal display screen, the first roller 11 and the second roller 12 included in the laminating device 1 make the first flexible substrate a and the second flexible substrate b adhere to each other. In some embodiments In this, the bonding of the first flexible substrate a and the second flexible substrate b can be achieved by setting a sealant between the first flexible substrate a and the second flexible substrate b. In this case, the frame sealant can be applied to the surface of either one of them before lamination. That is, before the bonding step, the frame sealant 301 is coated on the surface of the first flexible substrate a or the second flexible substrate b in advance, so that the first flexible substrate a and the second flexible substrate b Laminated by frame sealing glue 301.

Based on this, in some embodiments, as shown in FIGS. 2A and 2B, the flexible liquid crystal display manufacturing apparatus 100 further includes: a frame sealant coating device 3, which is arranged on the first flexible substrate a toward the first roller 11 The conveying path is configured to apply the sealant 301 to the surface of the first flexible substrate a.

In the above embodiment, the frame sealant coating device 3 is arranged on the conveying path of the first flexible substrate a to the first roller 11, so that the first flexible substrate a is conveyed to the first roller 11 in the process In the process, the frame sealant 301 is applied to the surface of the first flexible substrate a by the frame sealant coating device 3, and then the liquid crystal is dripped by the liquid crystal coating device 2, while the first roller 11 and the second roller 12 The first flexible substrate a and the second flexible substrate b are squeezed by rotating toward each other, so that the first flexible substrate a and the second flexible substrate b are bonded by the coated frame sealant 301, thereby achieving sealing The three processes of frame glue coating, liquid crystal dropping, and two flexible substrates being attached to each other are carried out simultaneously, which further improves the production efficiency of the flexible liquid crystal display.

In some embodiments, as shown in FIG. 3, the first flexible substrate a includes at least one display screen unit area a1, and each of the at least one display screen unit area a1 includes a first set of pairs. Side a11 and the second group of opposite sides a12, the first group of opposite sides a11 are parallel to the conveying direction of the first flexible substrate a, and the second group of opposite sides a12 are perpendicular to the conveying direction of the first flexible substrate a. Exemplarily, the shape of each display screen unit area a1 is a rectangle.

The at least one display screen unit area a1 is arranged at intervals along the length extension direction of the first flexible substrate a (that is, the conveying direction of the first flexible substrate a), that is, every adjacent display screen unit area a1 is There is a certain distance between the two display screen unit areas a1, so that after the first flexible substrate and the second flexible substrate are attached, the space between the two adjacent display screen unit areas a1 is parallel to each other. Cutting in the direction of the opposite side a12 of the second group can obtain at least one display screen unit.

Based on the structure of the first flexible substrate a above, in some embodiments, as shown in FIGS. 2A, 4A, and 4B, the sealant coating device 3 includes: at least two first sealant coating components 31. The sealant 3011 is configured to coat the first set of opposite sides a11 of each display screen unit area a1. The at least two first frame sealant coating parts 31 are divided into two groups, and each group includes at least one first frame sealant coating part 31. When the frame sealant is applied, the two sets of first frame sealant coating parts 31 respectively correspond to the two long sides of the first flexible substrate a, so as to align the first set of opposite sides a11 of each display unit area a1. The two sides included are coated with frame sealant.

In some possible designs, as shown in FIGS. 4A and 4B, the frame sealant coating device 3 includes two first frame sealant coating parts 31. When the frame sealant is applied, the two first frame sealants The glue coating parts 31 respectively correspond to the two long sides of the first flexible substrate a.

In some possible designs, during the process of applying the frame sealant, the position of the first frame sealant coating part 31 is fixed, by making the first flexible substrate a relative to the first frame sealant coating part 31 moves to complete the coating of the sealant 3011 on the opposite side a11 of the first group.

In some possible designs, as shown in FIG. 4A, during the transmission process of the first flexible substrate a, at least two first frame sealant coating parts 31 included in the frame sealant coating device 3 are continuously coated. In this way, two continuous sealants parallel to the transmission direction of the first flexible substrate a are formed on the surface of the first flexible substrate a, so that the at least two first sealant coating parts can be reduced The number of opening or closing 31 simplifies the operation of each first sealant coating part 31.

In other possible designs, as shown in FIG. 4B, during the transmission of the first flexible substrate a, the at least two first frame sealant coating components 31 included in the frame sealant coating device 3 are intermittently performed Coating: apply frame sealant 3011 at the first opposite side a11 of each display screen unit area a1, and do not apply frame sealant at the gap between every two adjacent display unit areas a1, so It is possible to form a plurality of sealants parallel to the transmission direction of the first flexible substrate a on the surface of the first flexible substrate a, corresponding to the first set of opposite sides a11 of each display screen unit area a1, so that sealing can be saved. The amount of sealant used increases the utilization rate of the sealant.

It should be noted that, based on the coating method of the sealant, the first flexible substrate a and the second flexible substrate b are passed through the first set of opposite sides a11 of each display screen unit area a1 to be coated. The sealant 3011 realizes bonding. After the bonding, the sealant is cured, and the interval area between the two adjacent display screen unit areas a1 is cut along the direction parallel to the second set of opposite sides a12. Coat the frame sealant at the position corresponding to the second set of opposite sides a12 at the cut, and cure the sealant to complete all the sides of each display unit (ie the first set of opposite sides a11 and the second set of To the package of side a12).

Based on the structure of the first flexible substrate a above, in other embodiments, referring to FIG. 2B, FIG. 4C, and FIG. 4D, the sealant coating device 3 includes at least two first sealant coating parts In addition to 31, it also includes a second frame sealant coating component 32 configured to coat the second set of frame sealant 3012 on opposite sides a12 of each display screen unit area a1.

It should be noted that the arrangement of the at least two first frame sealant coating parts 31 can be found in the relevant description above, and will not be repeated here.

In addition, referring to FIGS. 4C and 4D, the coating method of the at least two first sealant coating components 31 on the surface of the first flexible substrate a includes continuous coating or intermittent coating. Please refer to the relevant description above, which will not be repeated here.

It should be noted that, as shown in FIG. 3, FIG. 4C and FIG. 4D, along the direction perpendicular to the conveying direction of the first flexible substrate a, the opposite sides of the first flexible substrate a are the A side and the B side, respectively. At the same time, the A side and the B side of the first flexible substrate a are also the A side and the B side of each display screen unit area a1 of the first flexible substrate a. During the process of coating the second set of frame sealant 3012 on the opposite side a12 of the second frame sealant coating part 32, it must move from the A side to the B side of each display unit area a1, and then from each display screen The B side of the unit area a1 returns to the A side, that is, the second sealant coating member 32 periodically reciprocates between the A side and the B side of the first flexible substrate a.

Moreover, in some embodiments, the second frame sealant coating part 32 is applied to the frame sealant 3012 during the process of moving from the A side to the B side of each display unit area a1. In this case, During the movement of the second frame sealant coating member 32 from the A side to the B side of each display screen unit area a1, the moving direction cannot be perpendicular to the conveying direction of the first flexible substrate a, but must be in line with the first flexible substrate a. The conveying direction of the substrate a is at an acute angle to ensure that the coated frame sealant 3012 on the opposite side a12 of each display screen unit area a1 is perpendicular to the conveying direction of the first flexible substrate a. In the same way, the second frame sealant coating part 32 is applied to the frame sealant 3012 while moving from the B side to the A side of each display unit area a1. In this case, the second frame sealant The moving direction of the coating member 32 is at an acute angle with the conveying direction of the first flexible substrate a to ensure that the frame sealing glue 3012 of the second set of opposite sides a12 of each display screen unit area a1 is perpendicular to the first flexible substrate. The conveying direction of the substrate a.

During the transfer of the first flexible substrate a to the first roller 11, the first frame sealant coating part 32 is used to coat the first group of opposite sides a11 of each display screen unit area a1. Set the frame sealant 3011 on the opposite side a11, and coat the second set of frame sealant on the opposite side a12 at the position of the second set of opposite sides a12 of each display unit area a1 through the second frame sealer coating component 32 3012, the frame sealant pattern formed in this way is the sealant pattern corresponding to the four sides of each display screen unit area a1. In this way, during the liquid crystal dropping process, the liquid crystal is dropped within the range defined by the frame sealant pattern. The first set of frame sealant 3011 on the opposite side a11 and the second set of frame sealant 3012 on the opposite side a12 can be used A flexible substrate a and a second flexible substrate b are bonded together, and there is no need to coat frame sealant in subsequent steps, which saves process steps and improves preparation efficiency.

As shown in FIG. 2B, the apparatus 100 for preparing a flexible liquid crystal display screen further includes: a coating control part 4, which is connected to the second frame sealant coating part 32 and is configured to control the movement of the second frame sealant coating part 32 The direction F and the moving speed n, and the moving direction F and the moving speed v are compensated so that the applied frame sealing glue 3012 on the opposite side a12 of the second group is perpendicular to the conveying direction F _{1 of the} first flexible substrate a, and The application of the frame sealant 3011 on the opposite side a11 of the first group and the application of the frame sealant 3012 on the opposite side a12 of the second group are completed at the same time.

It should be noted that the manner in which the coating control component 4 is connected to the second sealant coating component 32 includes direct connection, or a signal connection through a wireless device.

In some possible designs, when the frame sealant is applied, the first flexible substrate a is in the transmission process, so the second frame sealant coating part 32 is from the first group opposite side a11 of the display unit area a1 moving side to side, and the moving direction F F a conveying direction of _a first flexible substrate at an acute angle. 4C and 4D, the moving direction of the second member 32 for dispensing sealant F of the first conveying direction F of a flexible substrate ₁ is the angle between θ. In this way, the moving speed n of the second frame sealant coating part 32 has a component in the conveying direction of the first flexible substrate a, thereby eliminating the impact of the transmission of the first flexible substrate a on the second frame sealant coating part 32. The effect of coating the second set of frame sealant 3012 on the side a12, the coated second set of frame sealant 3012 on the side a12 of each display unit area a1 is perpendicular to the transmission of the first flexible substrate a Direction F ₁ .

The above-described embodiments, by coating the control section 4 controls the second sealant applying member and the moving direction F of the moving speed v 32, and the moving direction F and the moving speed to _{compensate. 1} v, such that the second sealant The frame sealant 3012 of the second group of opposite sides a12 coated by the coating component 32 is perpendicular to the conveying direction F _{1 of the} first flexible substrate a, and the coating of the frame sealant 3011 of the first group of opposite sides a11 is consistent with the first The coating of the frame sealant 3012 on the opposite sides a12 of the two sets is completed at the same time. In this way, the coating of the second frame sealant coating component 32 can be precisely controlled, so that the applied frame sealant 3012 of the second set of opposite sides a12 accurately corresponds to the second set of opposite sides a12, thereby improving the flexible liquid crystal display Screen preparation efficiency.

In some embodiments, each of the first frame sealant coating component 31 and the second frame sealant coating component 32 may be implemented by a frame sealant spray head. By controlling the volume and rate of the frame sealing glue sprayed by the frame sealing glue nozzle, the amount of the frame sealing glue sprayed is controlled, so that the amount of the frame sealing glue coated on the first flexible substrate a is controlled in an appropriate range Inside.

In some embodiments, as shown in FIG. 1, FIG. 2A and FIG. 2B, the manufacturing apparatus 100 of the flexible liquid crystal display screen further includes: a first unwinding device 5, a second unwinding device 6, and a winding device 7.

Wherein, the first unwinding device 5 is arranged on the side of the first roller 11 away from the second roller 12, and is configured to wind the first flexible substrate a and rotate in the same direction as the first roller 11. A flexible substrate a is transferred to the first roller 11.

The second unwinding device 6 is arranged on the side of the second roller 12 away from the first roller 11, and is configured to wind the second flexible substrate b and rotate in the same direction as the second roller 12 to reduce the second flexible The substrate b is transferred to the second roller 12.

The winding device 7 is provided below the bonding device 1 and is configured to wind the first flexible substrate a and the second flexible substrate b that are bonded to each other.

Exemplarily, as shown in Fig. 1, the first unwinding device 5 and the first roller shaft 11 both rotate in a clockwise direction, and the second unwinding device 6 and the second roller shaft 12 both rotate in a counterclockwise direction to wind up The device 7 rotates in a counterclockwise direction.

The above-mentioned embodiment provides a way to transfer the first flexible substrate a and the second flexible substrate b to the first roller 11 and the second roller 12 respectively. Through the first unwinding device 5, the second unwinding device 6 and the winding device 7, the roll-to-roll process is used to realize the unwinding and conveying of the first flexible substrate a and the second flexible substrate b, and the mutual bonding Winding of the first flexible substrate a and the second flexible substrate b. In this way, it can be ensured that the first flexible substrate a and the second flexible substrate b are always in a straightened state during the transfer process. When the frame sealant coating device 3 is used to coat the first flexible substrate a, the coating The cloth effect will be better; and when the first flexible substrate a and the second flexible substrate b are bonded by the first roller 11 and the second roller 12, the bonding effect is better, which can further improve the flexibility The production efficiency and precision of the liquid crystal display.

In some embodiments, the axis of the first unwinding device 5, the axis of the first roller 11, the axis of the second unwinding device 6, and the second roller 12 are all on the same plane, so that the first flexible The substrate a and the second flexible substrate b are on the same plane during transportation, which helps to align the two before bonding.

In some embodiments, please refer to FIGS. 2A and 2B again. The flexible liquid crystal display preparation device 100 further includes: a frame sealant curing device 8, which is arranged between the laminating device 1 and the winding device 7, and is configured In order to cure the sealant 301 between the first flexible substrate a and the second flexible substrate b that are attached to each other.

In the above-mentioned embodiment, the frame sealant curing device 8 is set between the laminating device 1 and the winding device 7 so that the frame sealant between the first flexible substrate a and the second flexible substrate b that are attached to each other 301 curing, so as to realize the frame sealing glue coating, liquid crystal dripping, two flexible substrates being attached to each other and the frame sealing glue curing at the same time, which further improves the preparation efficiency of the flexible liquid crystal display.

As some possible designs, as shown in FIG. 5A, the sealant curing device 8 includes a supporting member 81 and a plurality of curing lamps 82.

Among them, the supporting member 81 is, for example, a frame-shaped structure, which is provided on the conveying path between the laminating device 1 and the winding device 7, and is configured as a first flexible substrate a and a second flexible substrate b for mutual bonding. Pass through the inside of the frame structure.

The plurality of curing lamps 82 are arranged on the inner wall of the support member 81, and are configured to irradiate the first flexible substrate a and the second flexible substrate b that are pasted from the inside of the frame structure, so that the first The sealant 301 between the flexible substrate a and the second flexible substrate b is cured.

The above embodiments provide a possible implementation structure of the frame sealant curing device 8. The frame sealant curing device 8 includes a supporting member 81 and a plurality of curing lamps 82. The first flexible roller 11 and the second roller 12 After the substrate a and the second flexible substrate b are bonded, the first flexible substrate a and the second flexible substrate b that are bonded to each other pass through the inside of the frame structure and are arranged on the inner wall of the supporting member 81 The plurality of curing lamps 82 emit light for curing the sealant, such as ultraviolet light, to cure the sealant 301 between the first flexible substrate a and the second flexible substrate b.

As some possible designs, the structure formed by the first flexible substrate a and the second flexible substrate b that are bonded to each other is called a bonded structure, and a plurality of curing lamps 82 are arranged around the bonded structure, so that the When the bonding structure passes through the inside of the frame structure, the two opposite main surfaces and side surfaces of the bonding structure can be illuminated by the plurality of curing lamps 82, so that the first flexible substrate a and the second flexible substrate b The frame sealing glue 301 in between can be fully and thoroughly irradiated by the multiple curing lamps 82, so that the curing effect of the frame sealing glue 301 is better.

In some possible designs, the plurality of curing lamps 82 are evenly arranged on the inner wall of the supporting member 81, so that the plurality of curing lamps 82 can be used to connect the first flexible substrate a and the second flexible substrate b to each other. The light is more uniform and the curing effect is better.

In some possible designs, as shown in Figure 1, Figure 2A and Figure 2B, the structure formed by the first flexible substrate a and the second flexible substrate b that are attached to each other is called a bonded structure, which is called a bonded structure The conveying direction from the laminating device 1 to the winding device 7 is the conveying direction F ₂ of the laminating structure. In the direction perpendicular to the conveying direction F ₂ of the bonding structure, the shape of the cross section of the frame structure of the support member 81 matches the shape of the cross section of the bonding structure. Exemplarily, as shown in FIG. 5B, when the bonding structure passes through the inside of the frame structure, the gaps between the respective inner surfaces of the frame structure and the corresponding surfaces in the respective surfaces of the bonding structure are equal. L, so that the plurality of curing lamps 82 arranged on the inner wall of the supporting member 81 irradiate the first flexible substrate a and the second flexible substrate b that are attached to each other more uniformly, so that the first flexible substrate a The curing effect of the frame sealant between and the second flexible substrate b is better.

In some embodiments, the transfer speed of the first flexible substrate a and the second flexible substrate b that are attached to each other is matched with the curing rate of the plurality of curing lamps 82 for the frame sealant, so as to ensure the use of the sealant. When the winding device 7 winds the first flexible substrate a and the second flexible substrate b that are attached to each other, the sealant 301 is fully cured.

In some embodiments, as shown in FIGS. 2A and 2B, the manufacturing apparatus 100 of the flexible liquid crystal display screen further includes: at least one pressure sensor 9 and a distance control component 10.

Wherein, the at least one pressure sensor 9 is arranged on the surface of the first roller 11 or the second roller 12, and is configured to detect the pressure between the first flexible substrate a and the first roller 11, or the second The pressure between the flexible substrate b and the second roller 12.

The distance control component 10 is connected to at least one pressure sensor 9 and is configured to adjust the distance between the first roller shaft 11 and the second roller shaft 12 according to the pressure value detected by the at least one pressure sensor 9 to make the first flexible The pressure between the substrate a and the first roller 11 or the pressure between the second flexible substrate b and the second roller 12 is maintained within a set pressure range.

Exemplarily, as shown in FIG. 2A and FIG. 2B, the flexible liquid crystal display manufacturing apparatus 100 includes a pressure sensor 9, which is arranged on the surface of the first roller 11 and is configured to detect the first flexible substrate The pressure between a and the first roller shaft 11.

As some possible designs, in order to ensure the accurate alignment of the first flexible substrate and the second flexible substrate before and during the bonding process, the speed at which the first roller 11 and the second roller 12 rotate Set equal, and set the rotation speeds of the first unwinding device 5, the second unwinding device 6, and the winding device 7 to be equal. According to the force interaction, during the lamination process, the pressure between the first flexible substrate a and the first roller 11 is equal to the pressure between the second flexible substrate b and the second roller 12, so the at least A pressure sensor 9 is provided on the surface of any one of the first roller shaft 11 or the second roller shaft 12. The pressure value detected by the at least one pressure sensor 9 can not only reflect the roller shaft on which it is located and where the roller shaft is located. The pressure between the corresponding flexible substrates can also reflect the pressure between another roller and the corresponding flexible substrate.

It should be noted that the set pressure range is a reference range of the pressure between the first flexible substrate a and the first roller 11 or the pressure between the second flexible substrate b and the second roller 12. When the pressure between the first flexible substrate a and the first roller 11 or the pressure between the second flexible substrate b and the second roller 12 is within the set pressure range, the first roller 11 and the first roller 11 The pressing force of the two rollers 12 on the first flexible substrate a and the second flexible substrate b is moderate, so that the bonding effect of the first flexible substrate a and the second flexible substrate b is better, and the flexible liquid crystal display screen The box thickness meets the requirement of setting box thickness. Exemplarily, the set pressure range is to perform multiple bonding tests under the conditions of multiple different pressure values. Among the multiple flexible liquid crystal display screens obtained, the bonding effect and cell thickness meet the set requirements of flexibility The range determined by multiple pressure values corresponding to the LCD screen.

In this way, during the bonding process, the pressure between the first flexible substrate a and the first roller 11 or the pressure between the second flexible substrate b and the second roller 12 is detected by the at least one pressure sensor 9 The distance control component 10 adjusts the distance between the first roller shaft 11 and the second roller shaft 12 according to the detected pressure value, so that the pressure value is maintained within the set pressure range, and the first flexible substrate The bonding effect of a and the second flexible substrate b is better, and the box thickness meets the set box thickness requirement.

It should be noted that, in some embodiments, the first flexible substrate a mentioned in the embodiments of the present disclosure includes a first flexible substrate, a drive circuit structure, an alignment layer, etc. provided on one side of the first flexible substrate. , And a polarizer disposed on the other side of the first flexible substrate. The mentioned second flexible substrate b includes a second flexible substrate, a color film layer, an alignment layer, etc., arranged on one side of the second flexible substrate, and a polarizer arranged on the other side of the second flexible substrate . The above only gives an example of the structure of the first flexible substrate a and the second flexible substrate b. In some other embodiments, the structures of the first flexible substrate a and the second flexible substrate b also include other examples. , This disclosure does not set limits on this.

Some embodiments of the present disclosure provide a method for manufacturing a flexible liquid crystal display, which is applied to the manufacturing device of a flexible liquid crystal display as described in the above technical solution. As shown in FIG. 6, the method for manufacturing a flexible liquid crystal display includes:

S1. The first roller 11 and the second roller 12 of the laminating device 1 of the preparation device 100 are rotated toward each other.

S2. The first flexible substrate a is transferred to the first roller 11, and the second flexible substrate b is transferred to the second roller 12.

S3, the liquid crystal 201 is dripped between the first flexible substrate a and the second flexible substrate b through the liquid crystal coating device 2 of the preparation apparatus 100.

S4. The first flexible substrate a and the second flexible substrate b after the liquid crystal 201 is dripped are bonded together by rotating the first roller shaft 11 and the second roller shaft 12 toward each other.

Using the above preparation method to prepare the flexible display screen can realize the liquid crystal dripping, the first flexible substrate and the second flexible substrate bonding at the same time, and the liquid crystal dripping and the flexible substrate bonding are completed at one time, which improves Improve the production efficiency of flexible liquid crystal display.

It should be noted that, in the manufacturing method of the flexible liquid crystal display screen, the numbering of the steps is for a clear description of the preparation method, and does not represent a restriction on the sequence of each process.

In some embodiments, as shown in FIG. 7, the preparation method further includes: during the process of transferring the first flexible substrate a to the first roller 11, the sealant coating device 3 sends the first flexible substrate a to the first flexible substrate. The surface of a is coated with frame sealant 301.

In the above embodiment, in the process of transferring the first flexible substrate a to the first roller 11, the frame sealant 301 is applied to the surface of the first flexible substrate a by the frame sealant coating device 3, and then passes through The liquid crystal coating device 2 performs liquid crystal dropping, while the first roller 11 and the second roller 12 rotate toward each other to press the first flexible substrate a and the second flexible substrate b, so that the first flexible substrate a and the second flexible substrate b The two flexible substrates b are bonded through the coated frame sealant 301, so that the three processes of frame sealant coating, liquid crystal dripping, and two flexible substrates are attached to each other at the same time, which further improves the flexible liquid crystal The preparation efficiency of the display screen.

In some embodiments, please refer to FIG. 3 again, the first flexible substrate a includes at least one display screen unit area a1, and each of the at least one display screen unit area a1 includes a first set of pairs Side a11 and the second group of opposite sides a12, the first group of opposite sides a11 are parallel to the conveying direction of the first flexible substrate a, and the second group of opposite sides a12 are perpendicular to the conveying direction of the first flexible substrate a. Exemplarily, the shape of each display screen unit area a1 is a rectangle.

Based on the structure of the first flexible substrate a above, in some embodiments, as shown in FIG. 8, the step of applying the frame sealant 301 to the surface of the first flexible substrate a by the frame sealant coating device 3, The method includes: coating the surface of the first flexible substrate a with the first group of opposite sides a11 of the frame sealant 3011 of each display screen unit area a1 through the first frame sealant coating component 31.

As shown in FIG. 8, based on the above-mentioned coating method of the frame sealant, the preparation method further includes: before the second flexible substrate b is transferred to the second roller 12 S2, in the second flexible substrate b A microcup structure layer is prepared on the surface.

In the above embodiment, the microcup structure layer includes a plurality of microcups, and each of the plurality of microcups is shaped like a groove, and the groove-shaped opening faces away from the second flexible substrate b. In the direction parallel to the plane defined by the second flexible substrate b, the cross-sectional shape of each microcup has various shapes. Illustratively, the cross-sectional shape of each microcup is rectangular or trapezoidal. And other shapes. Liquid crystal is filled in each microcup of the microcup structure layer, and each microcup has a set height in a direction perpendicular to the plane determined by the second flexible substrate b to maintain the first flexible substrate The gap between a and the second flexible substrate b plays a role in controlling the cell thickness of the flexible liquid crystal display screen.

In some embodiments, the method for preparing the microcup structure layer is: forming a microcup structure material layer on the surface of the second flexible substrate b by coating, printing, etc., and embossing on the material layer The plurality of microcups are formed on the upper surface.

Since the microcup structure layer is prepared on the surface of the second flexible substrate b, when the liquid crystal 201 is dripped between the first flexible substrate a and the second flexible substrate b through the liquid crystal coating device 2, the liquid crystal 201 is Fill in multiple microcups. Through the first frame sealant coating component 31, after coating the first set of frame sealant 3011 on the opposite side a11 of each display unit area a1 to the surface of the first flexible substrate a, the first flexible substrate a and The second flexible substrate b is bonded by the coated frame sealing glue 3011 on the side a11 of the first set. During the bonding process, due to the action of multiple microcups in the microcup structure layer, the first flexible substrate The liquid crystal between a and the second flexible substrate b is not easy to leak out, which can ensure the smooth progress of the bonding process.

In some embodiments, please refer to FIG. 8 again. After S4, the preparation method further includes:

S5: The frame sealant between the first flexible substrate a and the second flexible substrate b that are attached to each other is cured by the frame sealant curing device 8.

S6, cutting the first flexible substrate a and the second flexible substrate b that are attached to each other.

S7. Apply frame sealant at the position corresponding to the second set of opposite sides a12 at the cut, and cure the applied frame sealant.

Based on the structure of the first flexible substrate a above, in other embodiments, as shown in FIGS. 9 and 10, the frame sealant is applied to the surface of the first flexible substrate a by the sealant coating device 3 The 301 steps include:

The first frame sealant coating component 31 is used to coat the surface of the first flexible substrate a with the frame sealant 3011 of the first set of opposite sides a11 of each display screen unit area a1.

The second set of frame sealant 3012 on the opposite side a12 of each display unit area a1 is applied to the surface of the first flexible substrate a through the second frame sealant coating component 32, and the coating control component is used during the coating process 4. Control the moving direction F and moving speed v of the second frame sealant coating component 32, and compensate for the moving direction F and moving speed v, so that the second set of applied frame sealant 3012 on the opposite side a12 is vertical In the conveying direction v _{1 of the} first flexible substrate a, the coating of the sealant 3011 on the opposite side a11 of the first group and the coating of the sealant 3012 on the opposite side a12 of the second group are completed at the same time.

Exemplarily, compensating the movement direction F and the movement speed v includes: making the movement direction F and the movement speed v of the second sealant coating device 32 satisfy the following formula:

v×cosθ=v ₁ ;

Where θ is the angle between the moving direction F of the second frame sealant coating device 32 and the conveying direction F ₁ of the first flexible substrate, v is the moving speed of the second frame sealant coating device 32, and v ₁ is The conveying speed of the first flexible substrate, L ₁ is the length of the second set of opposite sides a12 of each display screen unit area a1, and L is the length of the first set of opposite sides a11 of each display screen unit area a1 length.

In the above embodiment, the coating control component 4 controls the movement direction F and the movement speed v of the second sealant coating component 32, and compensates for the movement direction F and the movement speed v, so that the second sealant coating The second set of frame sealant 3012 on the opposite side a12 coated by the cloth member 32 is perpendicular to the conveying direction F _{1 of the} first flexible substrate a, and the coating of the second set of frame sealant 3011 on the opposite side a11 is the same as that of the second The coating of the frame sealant 3012 on the opposite side a12 is completed at the same time. In this way, the coating of the second frame sealant coating component 32 can be controlled more accurately, so that the coated frame sealant 3012 of the second set of opposite sides a12 accurately corresponds to the second set of opposite sides a12, thereby improving the flexible liquid crystal The preparation efficiency of the display screen.

Based on the above-mentioned coating method of the frame sealant, in some embodiments, as shown in FIG. 9, the preparation method further includes: before the step of transferring the second flexible substrate to the second roller, the second flexible substrate A microcup structure layer is prepared on the surface of the substrate b. In this way, during the bonding process, due to the action of multiple microcups in the microcup structure layer, the liquid crystal between the first flexible substrate a and the second flexible substrate b is not easy to leak out, which can ensure the smooth progress of the bonding process, and , The microcup structure layer can also play a role in controlling the cell thickness of the prepared flexible liquid crystal display.

In other embodiments, as shown in FIG. 10, the preparation method further includes: before injecting liquid crystal S3 between the first flexible substrate a and the second flexible substrate b through the liquid crystal coating device, The spacer is mixed in the liquid crystal. Mixing spacers in the liquid crystal can maintain the gap between the first flexible substrate a and the second flexible substrate b, and control the cell thickness of the flexible liquid crystal display.

In some embodiments, based on the coating method of the above-mentioned frame sealant, as shown in Figs. 9 and 10, the preparation method further includes: after the frame sealant curing device 8 is used, the first flexible liner that is attached to each other After the frame sealant between the bottom a and the second flexible substrate b is cured S5, S6: cutting the first flexible substrate and the second flexible substrate that are attached to each other. In this way, at least one encapsulated display unit with all sides is obtained.

As some possible designs, the preparation method further includes: transporting the first flexible substrate a to the first roller 11 and transporting the second flexible substrate b to the second roller 12 before S2. The surfaces of the flexible substrate a and the second flexible substrate b form an alignment layer. The alignment layer includes a plurality of alignment grooves, each of the plurality of alignment grooves extending along a set direction, so that the liquid crystal molecules can be arranged in the set direction.

In some embodiments, as shown in FIG. 8, FIG. 9 and FIG. 10, the preparation method further includes: S5. Using the frame sealant curing device 8 to compare the first flexible substrate a and the second flexible substrate that are attached to each other The sealant between b is cured.

Exemplarily, the first flexible substrate a and the second flexible substrate b that are attached to each other are passed through the inside of the frame structure of the support member 81 of the frame sealant curing device 8, and irradiated by a plurality of curing lamps 82 The first flexible substrate a and the second flexible substrate b passing through the inside of the frame structure solidify the frame sealant between the first flexible substrate a and the second flexible substrate b.

Further, when the frame sealant between the first flexible substrate a and the second flexible substrate b that are attached to each other is cured by the frame sealant curing device 8, it also includes: The conveying speed of a flexible substrate a and a second flexible substrate b, and/or the curing rate of the plurality of curing lamps 82 for the frame sealant is adjusted so that the first flexible substrate a and the second flexible substrate a and the second The transfer speed of the flexible substrate b is matched with the curing rate of the multiple curing lamps 82 for the frame sealant, so as to ensure that the first flexible substrate a and the second flexible substrate b that are attached to each other are processed by the winding device 7 When rewinding, the frame sealing glue 301 is fully cured. Exemplarily, the way to adjust the curing rate of the plurality of curing lamps 82 to the frame sealant is to adjust the luminous intensity of the plurality of curing lamps 82.

The frame sealant curing device 8 cures the frame sealant between the first flexible substrate a and the second flexible substrate b that are attached to each other, and realizes the frame sealant coating, liquid crystal dripping, and two flexible The mutual bonding of the substrates and the curing of the frame sealing glue are performed simultaneously, which further improves the preparation efficiency of the flexible liquid crystal display.

In some embodiments, as shown in FIG. 11, the preparation method further includes:

S1. During the lamination process, at least one pressure sensor 9 is used to detect the pressure between the first flexible substrate a and the first roller 11, or between the second flexible substrate b and the second roller 12 in real time The pressure; and the detected pressure value is transmitted to the distance control component 10.

S2. The distance control component 10 receives the detected pressure value d, and determines the relationship between the detected pressure value and the set pressure range [d _min , d _max ].

If the detected pressure value d is within the set pressure range [d _min , d _max ], that is, d _min ≤ d ≤ d _max , then the distance between the first roller shaft 11 and the second roller shaft 12 is maintained unchanged .

If the detected pressure value is greater than the upper limit of the set pressure range, that is, d>d _max , the distance between the first roller shaft 11 and the second roller shaft 12 is increased.

If the detected pressure value is less than the lower limit of the set pressure range, that is, d<d _min , the distance between the first roller shaft 11 and the second roller shaft 12 is reduced.

In this way, during the bonding process, the pressure between the first flexible substrate a and the first roller 11 or the pressure between the second flexible substrate b and the second roller 12 is detected by the at least one pressure sensor 9 The distance control component 10 adjusts the distance between the first roller shaft 11 and the second roller shaft 12 according to the detected pressure value, so that the pressure value is maintained within the set pressure range, and the first flexible substrate The bonding effect of a and the second flexible substrate b is better, and the display effect of the prepared flexible liquid crystal display is better, and the cell thickness meets the requirement of the set cell thickness.

The above are only specific implementations of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present disclosure. It should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

A preparation device for a flexible liquid crystal display screen, including:

The laminating device includes a first roller and a second roller, the first roller is configured to transport the first flexible substrate, and the second roller is configured to transport the A second flexible substrate; the first roller shaft and the second roller shaft have a set distance between them, and the two rotate toward each other, so that the first flexible substrate and the second flexible substrate are attached;

The liquid crystal coating device is arranged above the bonding device and is configured to drip liquid crystal between the first flexible substrate and the second flexible substrate.
The manufacturing device of a flexible liquid crystal display screen according to claim 1, further comprising:

The frame sealant coating equipment is arranged on the conveying path of the first flexible substrate to the first roller, and is configured to coat the frame sealant on the surface of the first flexible substrate.
The manufacturing apparatus of a flexible liquid crystal display screen according to claim 2, wherein the first flexible substrate includes at least one display screen unit area, and each of the at least one display screen unit area includes a first A set of opposite sides, the first set of opposite sides are parallel to the conveying direction of the first flexible substrate;

The frame sealing glue coating equipment includes:

At least two first frame sealant coating parts are configured to coat the first set of frame sealants on opposite sides of each display screen unit area.
The manufacturing device of a flexible liquid crystal display screen according to claim 3, wherein each of the at least one display screen unit area further comprises a second set of opposite sides, and the second set of opposite sides is perpendicular to The conveying direction of the first flexible substrate;

The frame sealant coating equipment further includes:

The second frame sealant coating component is configured to coat the second set of opposite side frame sealants of each display screen unit area.
The manufacturing device of the flexible liquid crystal display screen according to claim 4, further comprising:

The coating control component is connected to the second frame sealant coating component, and is configured to control the movement direction and the movement speed of the second frame sealant coating component, and to control the movement direction and the movement speed Compensation is performed so that the applied second set of opposite side frame sealant is perpendicular to the conveying direction of the first flexible substrate, and the coating of the first set of opposite side frame sealant is consistent with the second The coating of the frame sealant on the opposite side is completed at the same time.
The manufacturing device of the flexible liquid crystal display screen according to claim 2, further comprising:

The first unwinding device is arranged on the side of the first roller shaft away from the second roller shaft, and is configured to wind the first flexible substrate and rotate in the same direction as the first roller shaft, Transferring the first flexible substrate to the first roller;

The second unwinding device is arranged on a side of the second roller shaft away from the first roller shaft, and is configured to wind the second flexible substrate and rotate in the same direction as the second roller shaft, Transferring the second flexible substrate to the second roller;

The winding device is arranged below the bonding device and is configured to wind the first flexible substrate and the second flexible substrate that are bonded to each other.
The manufacturing device of the flexible liquid crystal display screen according to claim 6, further comprising:

The frame sealant curing device is arranged between the laminating device and the winding device, and is configured to cure the frame sealant between the first flexible substrate and the second flexible substrate that are bonded to each other .
7. The manufacturing apparatus of a flexible liquid crystal display screen according to claim 7, wherein the curing equipment of the frame sealant comprises:

The supporting member, the supporting member is a frame-shaped structure, is arranged on the transfer path between the laminating device and the winding device, and is configured for the first flexible substrate and the second flexible substrate to be laminated The flexible substrate passes through the inside of the frame structure;

A plurality of curing lamps are arranged on the inner wall of the supporting member, and are configured to irradiate the first flexible substrate and the second flexible substrate passing through the inside of the frame structure, so that the first flexible substrate The sealant between the second flexible substrate and the second flexible substrate is cured.
The manufacturing device of a flexible liquid crystal display screen according to claim 1, further comprising:

At least one pressure sensor is disposed on the surface of the first roller or the second roller, and is configured to detect the pressure between the first flexible substrate and the first roller, or the first roller Pressure between the two flexible substrates and the second roller shaft;

The distance control component is connected to the at least one pressure sensor and is configured to adjust the distance between the first roller shaft and the second roller shaft according to the pressure value detected by the at least one pressure sensor, so that the The pressure between the first flexible substrate and the first roller or the pressure between the second flexible substrate and the second roller is maintained within a set pressure range.
A preparation method of a flexible liquid crystal display screen, applied to the preparation device of a flexible liquid crystal display screen according to claim 1, the preparation method comprising:

Rotating the first roller shaft and the second roller shaft of the laminating equipment of the preparation device toward each other;

Conveying the first flexible substrate to the first roller, and conveying the second flexible substrate to the second roller;

Dripping liquid crystal between the first flexible substrate and the second flexible substrate through the liquid crystal coating equipment of the preparation device;

By rotating the first roller shaft and the second roller shaft toward each other, the first flexible substrate and the second flexible substrate after the liquid crystal is dripped are bonded together.
The method for manufacturing a flexible liquid crystal display screen according to claim 10, wherein the manufacturing device further comprises a frame sealant coating device;

The preparation method further includes:

In the process of transferring the first flexible substrate to the first roller shaft, the frame sealant is applied to the surface of the first flexible substrate by the sealant coating device.
The method for manufacturing a flexible liquid crystal display screen according to claim 11, wherein the frame sealant coating equipment comprises at least two first frame sealant coating components;

The first flexible substrate includes at least one display screen unit area, each of the at least one display screen unit area includes a first set of opposite sides, and the first set of opposite sides is parallel to the first A conveying direction of the flexible substrate;

The step of applying the frame sealant to the surface of the first flexible substrate by the frame sealant coating device includes:

Coating the first group of opposite sides of each display screen unit area on the surface of the first flexible substrate by the at least two first frame sealing glue coating components;

The preparation method further includes:

Before the step of transferring the second flexible substrate to the second roller shaft, a microcup structure layer is prepared on the surface of the second flexible substrate.
The method for manufacturing a flexible liquid crystal display screen according to claim 11, wherein the frame sealant coating device comprises at least two first frame sealant coating components and a second frame sealant coating component, and the preparation The device also includes coating control components;

The first flexible substrate includes at least one display screen unit area, and each display screen unit area in the at least one display screen unit area includes a first set of opposite sides and a second set of opposite sides. The side is parallel to the conveying direction of the first flexible substrate, and the opposite sides of the second group are perpendicular to the conveying direction of the first flexible substrate;

The step of applying the frame sealant to the surface of the first flexible substrate by the frame sealant coating device includes:

Coating the first group of opposite sides of each display screen unit area on the surface of the first flexible substrate with the at least two first frame sealing glue coating components;

Coat the second set of opposite sides of each display screen unit area to the surface of the first flexible substrate by the second frame sealant coating component, and pass the coating during the coating process. The cloth control part controls the moving direction and moving speed of the second frame sealant coating part, and compensates for the moving direction and the moving speed, so that the applied second set of opposite side frame sealant Perpendicular to the conveying direction of the first flexible substrate, and the coating of the frame sealing glue on the opposite sides of the first group and the coating of the frame sealing glue on the opposite sides of the second group are completed at the same time;

The preparation method further includes:

Before the step of transferring the second flexible substrate to the second roller shaft, a microcup structure layer is prepared on the surface of the second flexible substrate; or,

Before the step of dripping liquid crystal between the first flexible substrate and the second flexible substrate through the liquid crystal coating device, the spacer is mixed in the liquid crystal.
11. The method for manufacturing a flexible liquid crystal display screen according to claim 11, wherein the manufacturing device further comprises a frame sealant curing device;

The preparation method further includes:

The frame sealing glue curing device is used to cure the sealing glue between the first flexible substrate and the second flexible substrate that are attached to each other.
The method for manufacturing a flexible liquid crystal display screen according to claim 10, wherein the manufacturing device further comprises at least two pressure sensors and a distance control component;

The preparation method further includes:

During the bonding process, the pressure between the first flexible substrate and the first roller shaft, or the second flexible substrate and the second roller is detected in real time by the at least one pressure sensor The pressure between the shafts, and the detected pressure value is transmitted to the distance control component;

Receiving the detected pressure value through the distance control component, and determining the relationship between the detected pressure value and the set pressure range;

If the detected pressure value is within the set pressure range, maintaining the distance between the first roller shaft and the second roller shaft unchanged;

If the detected pressure value is greater than the upper limit of the set pressure range, the distance between the first roller shaft and the second roller shaft is increased;

If the detected pressure value is less than the lower limit of the set pressure range, the distance between the first roller shaft and the second roller shaft is reduced.