CN114721179B - Polarizer attaching device - Google Patents

Abstract

The application provides a polaroid attachment device, it includes: the substrate adsorption carrier is used for adsorbing the glass substrate; the polaroid adsorption carrier is used for adsorbing the polaroid, a cavity is formed in the polaroid adsorption carrier, the polaroid adsorption carrier is provided with a first surface and a second surface which are opposite, the polaroid adsorption carrier comprises a plurality of hollowed-out parts penetrating through the first surface and the second surface, the polaroid is covered on part of the hollowed-out parts, and the hollowed-out parts are communicated with the cavity; the negative pressure source is connected with the polaroid adsorption carrier and is used for enabling a cavity inside the polaroid adsorption carrier to form negative pressure so as to adsorb the polaroid; the attaching unit is used for attaching the polaroid on the glass substrate. The fretwork portion of the attached device of polaroid is used for forming the passageway of gaseous circulation in this application to when attaching the unit with the polaroid on the polaroid absorption microscope carrier with the glass substrate subsides on the base plate absorption microscope carrier, thereby the gaseous between polaroid and the glass substrate can be discharged through fretwork portion, is favorable to avoiding because the attached bad of bubble production.

Description

Polarizer attaching device

Technical Field

The application relates to the technical field of display devices, in particular to a polaroid attaching device.

Background

In recent years, the display market is gradually occupied by thin film transistor liquid crystal displays (Thin Film Transistor-Liquid Crystal Display, abbreviated as TFT-LCDs), in which polarizers are important components that function to achieve polarization and polarization-preserving of natural light, to achieve the purpose of displaying images or improving contrast in strong light environments. Therefore, in the process of manufacturing the TFT-LCD display, the attachment of the polarizer is an important process.

When attaching the polaroid, a single-sided attaching mode is mainly adopted, and an attaching roller gradually presses the polaroid onto the glass substrate on the substrate adsorption platform from one end of the polaroid. The glass substrate comprises an upper substrate and a lower substrate, but a binding terminal (binding Pad) is further prepared between the upper substrate and the lower substrate, and a part of the upper substrate is generally cut off for bare leakage, so that a step is formed at the edge of the whole glass substrate, and therefore, when the polaroid is attached to the glass substrate, an attaching roller can firstly contact the edge of the polaroid, the step is affected by the glass substrate, and when the attaching roller advances to the step, the gap between the glass substrate and the polaroid can be filled with gas, so that the bubble problem is generated, the attachment is poor, and the waste of the polaroid is caused.

At present, the problem of air bubbles is generally avoided by adjusting the attaching pressure and the relative positions of the polaroid and the attaching roller, but the attaching precision is affected, the controllability is poor, the machine adjusting time is increased by frequent adjustment, and the operation efficiency is affected.

Disclosure of Invention

The application provides a polaroid attaching device to solve the problem that the polaroid appears the bubble at attaching in-process.

In one aspect, the present application provides a polarizer attaching apparatus, including:

a substrate adsorption stage for adsorbing a glass substrate;

the polaroid adsorption carrier is used for adsorbing the polaroid and is provided with a first surface and a second surface which are opposite to each other, the polaroid adsorption carrier comprises a plurality of hollowed-out parts penetrating through the first surface and the second surface, and the polaroid is adsorbed on the first surface and covers part of the hollowed-out parts;

and the attaching unit is used for attaching the polaroid to the glass substrate.

In one possible implementation manner of the present application, the plurality of cavities is provided, the polarizer adsorption stage is provided with a plurality of ventilation holes, and the ventilation holes are communicated with the cavities;

the hollow parts are arranged at intervals along a first direction and/or a second direction, the cavities extend along the first direction and/or the second direction, the vent holes are arranged at intervals along the first direction and/or the second direction, and the first direction and the second direction are crossed.

In one possible implementation manner of the present application, the polarizer adsorption stage includes an adsorption area and a peripheral area, where the peripheral area is located at the periphery of the adsorption area;

the polarizer is arranged in the adsorption area, the hollowed-out part is partially positioned in the peripheral area, and the peripheral area is provided with the vent holes.

In one possible implementation manner of the present application, the hollowed-out portion is a cross grid-shaped hollowed-out structure, the polarizer adsorption carrier includes a plurality of connection ribs, and the connection ribs are formed by crossing and enclosing the hollowed-out portion.

In one possible implementation manner of the present application, the cavity is formed inside the connecting rib, the air vent includes a first air hole and a second air hole, the connecting rib is disposed on the first face, at least one side of the connecting rib is disposed with the second air hole, and the first air hole, the second air hole and the hollow portion are mutually communicated.

In one possible implementation manner of the present application, the polarizer adsorption stage has a first end and a second end, the polarizer is attached to the glass substrate along a direction in which the first end points to the second end, and the negative pressure source is located at the second end.

In one possible implementation manner of the present application, the polarizer attaching device further includes:

and the airflow guiding device is arranged at a distance from the attaching unit and is close to the first end part or the second end part.

In one possible implementation of the present application, the attaching unit includes:

a base;

the attaching roller is arranged above the base;

and one end of the connecting part is connected with the base, the other end of the connecting part is connected with the attaching roller, and the connecting part is made of elastic materials.

In one possible implementation manner of the present application, the attaching unit further includes:

and the attaching driving unit is connected with the base and used for driving the attaching unit to reciprocate along a first direction.

In one possible implementation manner of the present application, the attaching roller is made of an elastic material.

The utility model provides a pair of attached device of polaroid, through set up the cavity that is used for forming the negative pressure at polaroid absorption microscope carrier inside and set up a plurality of fretwork portions that run through first face and second face on the polaroid absorption microscope carrier, the polaroid adsorbs in first face and cover on partial fretwork portion when attaching, and the tip of polaroid does not all cover on the fretwork portion promptly. Because fretwork portion and cavity intercommunication to when the negative pressure source vacuums the cavity and forms the negative pressure so that polaroid absorption microscope carrier realizes the adsorption function of polaroid, can flow around the fretwork portion that is not covered by the polaroid tip also, fretwork portion is used for forming the passageway of gaseous circulation promptly, thereby attach the unit when adsorbing the polaroid on the polaroid absorption microscope carrier with the glass substrate on the base plate absorption microscope carrier, thereby remain or the gas that produces between polaroid and the glass substrate can be discharged through fretwork portion, thereby can reduce the attached bubble between polaroid and the glass substrate effectively, make the laminating of polaroid and glass substrate tip more even, be favorable to avoiding the attached failure because the bubble produces, improve the processing yield and practice thrift the consumptive material.

Drawings

Technical solutions and other advantageous effects of the present application will be made apparent from the following detailed description of specific embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a polarizer attaching device according to an embodiment of the present application.

Fig. 2 is a schematic workflow structure of a polarizer attaching apparatus according to an embodiment of the present application.

Fig. 3 is a schematic perspective view of a polarizer adsorption stage according to an embodiment of the present disclosure.

Fig. 4 is an enlarged schematic view at a in fig. 1 provided in an embodiment of the present application.

Fig. 5 is a schematic top view of a polarizer adsorption stage according to an embodiment of the present disclosure.

FIG. 6 is a schematic structural diagram of an airflow guiding device in a polarizer attaching device according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

In the description of the present application, it is to be understood that the terms "first", "second" and "third" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. It should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, for example, as being directly connected, or indirectly connected through intermediaries, as being internal to two elements or as being in interaction with each other. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

Referring to fig. 1-6, an embodiment of the present application provides a polarizer 21 attaching device, which includes a substrate adsorption stage 10, a polarizer adsorption stage 20, a negative pressure source 30, and an attaching unit 40.

The substrate adsorption stage 10 is used for adsorbing the glass substrate 11, the polaroid adsorption stage 20 is used for adsorbing the polaroid 21, and the attaching unit 40 is used for attaching the polaroid 21 to the glass substrate 11. The negative pressure source 30 is connected to the polarizer suction stage 20. The negative pressure source 30 is used for making the cavity 201 inside the polarizer adsorption stage 20 form negative pressure, so that the ventilation holes 203 can realize the adsorption function, and simultaneously can accelerate the flow of the gas in the hollow part 202. Wherein the negative pressure source 30 may be a vacuum pump.

In the initial state of the polarizer attaching operation, the polarizer 21 has an offset distance D extending from an end of the polarizer adsorbing platform 20, for example, the offset distance D may be 5mm, and in the initial state, the attaching unit 40 abuts against the polarizer 21 corresponding to the offset distance D. During the polarizer attaching operation, the substrate adsorption stage 10 and the polarizer adsorption stage 20, and the attaching unit 40 are kept relatively moving, and for example, the substrate adsorption stage 10 may be horizontally moved from left to right, while the polarizer adsorption stage 20 and the attaching unit 40 are kept stationary in the horizontal direction. The attaching unit 40 is abutted against the surface of the polarizer 21 and attaches the polarizer to the glass substrate 11 on the substrate adsorption stage 10 during the movement of the substrate adsorption stage 10.

The polarizer adsorption stage 20 has a first surface 22 and a second surface 23 opposite to each other, the polarizer adsorption stage 20 includes a plurality of hollow portions 202 penetrating through the first surface 22 and the second surface 23, and the polarizer 21 is adsorbed on the first surface 22 and covers part of the hollow portions 202. The hollow portion 202 is used for forming a channel for air circulation, that is, the polarizer 21 is not completely covered on the hollow portion 202, especially the end portion of the polarizer 21 is not completely covered on the hollow portion, so that air flow can be ensured to fully circulate between the surface of the polarizer adsorption stage 20, that is, the first surface 22 and the second surface 23, and the hollow portion 202. The hollow portion 202 forms an air flow channel, so that the air reserved or generated between the polarizer 21 and the glass substrate 11 can be discharged through the hollow portion 202, and the adhering air bubbles between the polarizer 21 and the glass substrate 11 are reduced.

In this embodiment, the polarizer adsorption stage 20 and the substrate adsorption stage 10 may be rectangular, or of course, may be square, circular, or triangular, and the shapes of the polarizer adsorption stage 20 and the substrate adsorption stage 10 may be the same or different, and are not limited herein. Correspondingly, the hollowed-out portion 202 may be rectangular, circular, triangular, irregular, etc., which is not limited herein.

The plurality of hollowed-out portions 202 may be arranged in an array on the polarizer adsorption stage 20. The plurality of hollowed-out portions 202 may be arranged in an array, for example, the hollowed-out portions 202 may be in a shape of "one", "ten", "U", "field", "back", grid or other matrix. Of course, the hollowed-out portions 202 may be distributed concentrically, or may be distributed along a diagonal line of the polarizer suction stage 20.

According to the polaroid 21 attaching device, the cavity 201 for forming negative pressure is formed in the polaroid adsorption carrying platform 20, and the plurality of hollowed-out parts 202 penetrating through the first surface 22 and the second surface 23 are formed in the polaroid adsorption carrying platform 20, so that the polaroid 21 is adsorbed on the first surface 22 and covers part of the hollowed-out parts 202 during attaching, namely, the end parts of the polaroid 21 are not completely covered on the hollowed-out parts 202. Because the hollowed-out part 202 is communicated with the cavity 201, when the cavity 201 is vacuumized by the negative pressure source 30 to form negative pressure so that the polaroid adsorption carrier 20 realizes the adsorption function of the polaroid 21, the periphery of the hollowed-out part 202 which is not covered by the end part of the polaroid 21 also flows, namely, the hollowed-out part 202 is used for forming a gas circulation channel, so that when the polaroid 21 on the polaroid adsorption carrier 20 is attached to the glass substrate 11 on the substrate adsorption carrier 10 by the attaching unit 40, gas reserved or generated between the polaroid 21 and the glass substrate 11 can be discharged through the hollowed-out part 202, thereby adhering bubbles between the polaroid 21 and the glass substrate 11 can be effectively reduced, the adhesion between the polaroid 21 and the end part of the glass substrate 11 is smoother, attachment defects caused by the bubbles are avoided, the processing yield is improved, and the consumable materials are saved.

In some embodiments, the polarizer adsorption stage 20 is provided with a plurality of vent holes 203, the polarizer adsorption stage 20 is internally provided with a plurality of cavities 201, and the vent holes 203 are communicated with the cavities 201;

the hollow portions 202 are arranged at intervals along the first direction X and/or the second direction Y, the cavities 201 extend along the first direction X and/or the second direction Y, the ventilation holes 203 are arranged at intervals along the first direction X and/or the second direction Y, and the first direction X and the second direction Y intersect. Specifically, taking the polarizer suction stage 20 as an example, as shown in fig. 3, the first direction X is along the length direction of the polarizer suction stage 20, the second direction Y is along the width direction of the polarizer suction stage 20, and the first direction X and the second direction Y are perpendicular to each other.

When the plurality of cavities 201 are arranged along the first direction X and the second direction Y at the same time, the plurality of cavities 201 may be distributed in a cross shape, a "field" shape, or a grid shape. Of course, the plurality of cavities 201 may also be distributed along a diagonal line of the polarizer suction stage 20, etc., without being particularly limited thereto. Correspondingly, the plurality of ventilation holes 203 may also be in a cross shape, a field shape, or in other matrix distribution, etc., which will not be described herein. For example, among the plurality of cavities 201, a portion of the cavities 201 may extend along the first direction X, another portion of the cavities 201 extends along the second direction Y, adjacent cavities 201 are disposed at intervals, hollow portions 202 are disposed between adjacent cavities 201, the plurality of cavities 201 respectively extend along the first direction X and the second direction Y in a crossing manner to form a negative pressure channel, and the plurality of cavities 201 are communicated with each other, which is beneficial to improving the negative pressure suction efficiency.

In some embodiments, each of the hollowed-out portions 202 may have an area ranging from 16mm to 200mm, and a distance between adjacent hollowed-out portions 202 may range from 10mm to 30mm. Through setting the diameter of every fretwork portion 202 and the interval of fretwork portion 202 in suitable range, on the basis of guaranteeing the adsorption capacity of fretwork portion 202, both can improve adsorption efficiency, can guarantee the structural stability of turnover tray again. In addition, the diameters of the hollowed-out parts 202 and the distances between the hollowed-out parts 202 can also play a role of adapting to the polarizer adsorption carrier 20 with different sizes, so that the polarizer adsorption carrier 20 can be applied to flexible substrates with different sizes, and the universality of the polarizer adsorption carrier 20 is improved.

It should be noted that, when the area of the polarizer adsorption stage 20 is fixed, the larger the area of the hollowed-out portion 202 is, the better the gas circulation effect in the hollowed-out portion 202 is, whereas, the smaller the area of the hollowed-out portion 202 is, the worse the gas circulation effect in the hollowed-out portion 202 is. It can be understood that when the area of the hollowed-out portion 202 is too large, the polarizer 21 may be recessed under the effect of the hollowed-out portion 202, thereby affecting the yield of the polarizer 21; however, the ventilation effect of the hollow portion 202 is too small, which may reduce the exhaust effect. Similarly, the distance between the hollowed-out portions 202 represents the distribution density of the hollowed-out portions 202 on the surface of the polarizer adsorption stage 20, and under the same area of the hollowed-out portions 202, if the distance between the hollowed-out portions 202 is larger, the distribution of the hollowed-out portions 202 on the surface of the polarizer adsorption stage 20 is more sparse, whereas if the distance between the hollowed-out portions 202 is smaller, the distribution of the hollowed-out portions 202 on the surface of the polarizer adsorption stage 20 is more dense. It can be appreciated that the denser the hollowed-out portions 202 are distributed on the surface of the polarizer adsorption stage 20, the more likely the structural strength of the polarizer adsorption stage 20 is affected, which is unfavorable for the structural stability of the polarizer adsorption stage 20. The distribution of the hollowed-out portions 202 on the surface of the polarizer adsorption stage 20 is too sparse, and the adsorption capacity of the hollowed-out portions 202 is too small, so that the adsorption efficiency may be reduced.

In some embodiments, polarizer suction stage 20 includes suction region 205 and peripheral region 206, peripheral region 206 being located at the periphery of suction region 205. The polarizer 21 is disposed in the absorption region 205, and the hollowed-out portion 202 is partially disposed in the peripheral region 206. The adsorption area 205 is used for placing and adsorbing the polarizer 21, the hollow portion 202 is partially located in the peripheral area 206, and the peripheral area 206 is provided with the vent 203, so that the polarizer 21 is prevented from fully covering the hollow portion 202 and the vent 203, the polarizer 21 cannot shade the peripheral area 206, a gas circulation effect is ensured between the vent 203 and the hollow portion 202, and normal discharge of gas on the surface of the polarizer 21 is ensured.

In some embodiments, the hollowed-out portion 202 is a cross-grid hollowed-out structure, the polarizer adsorption stage 20 includes a plurality of connecting ribs 24, and the connecting ribs 24 cross-enclose to form the hollowed-out portion 202. It can be understood that the inner wall of the connecting rib 24 is also of a hollow structure, and the connecting rib 24 is arranged to form the hollowed-out portion 202 by crossing and enclosing, so that the connecting rib 24 can isolate the cavity 201 inside the polarizer adsorption carrier 20, and meanwhile, the connecting rib 24 can also improve the structural strength of the polarizer adsorption carrier 20, thereby being beneficial to prolonging the service life of the polarizer adsorption carrier 20.

In some embodiments, as shown in fig. 3 and fig. 6, the cavity 201 is formed inside the connecting rib 24, the air vent 203 includes a first air hole 2031 and a second air hole 2032, the connecting rib 24 is provided with the first air hole 2031 on the first surface 22, at least one side 25 of the connecting rib 24 is provided with the second air hole 2032, and the first air hole 2031, the second air hole 2032 and the hollowed portion are mutually communicated. The second air hole 2032 may be formed on one side 25 of the connection rib 24 or may be formed on both sides 25 of the connection rib 24.

In some embodiments, the polarizer suction stage 20 has a first end 211 and a second end 212, and the polarizer 21 is attached to the glass substrate 11 along a direction in which the first end 211 points toward the second end 212. The first end 211 corresponds to a first end of the polarizer 21, the second end 212 corresponds to a terminal end of the polarizer 21, wherein the first end of the polarizer 21 is a first end of the polarizer 21 attached to the glass substrate 11 in the attaching process, and the terminal end of the polarizer 21 is a last end of the polarizer 21 attached to the glass substrate 11 in the attaching process.

The negative pressure source 30 is located at the second end 212, and the second end 212 corresponds to the end of the polarizer 21, so that the negative pressure source 30 adsorbs the air around the interior and the exterior of the carrier 20 during the air suction process, and the negative pressure source 30 can guide the air flow direction, so that the air flow flows from the first end 211 to the second end 212, and the air is better prevented from being removed along the lamination of the polarizer 21, and the problem of air bubbles between the polarizer 21 and the glass substrate 11 caused by air flow turbulence is prevented, which is beneficial to further ensuring the lamination flatness between the polarizer 21 and the glass substrate 11.

In some embodiments, the attachment device for the polarizer 21 further includes an airflow guiding device 50, where the airflow guiding device 50 is spaced apart from the attachment unit 40, and the airflow guiding device 50 may be disposed near the first end 211 or near the second end 212. The air flow guiding device 50 may be an air blowing device or an air extracting device, and the air flow guiding device 50 is used for guiding the air flow to flow from the first end 211. Illustratively, when the airflow directing device 50 is disposed proximate to the first end 211, the airflow directing device 50 is correspondingly configured as an air blower, and when the airflow directing device 50 is disposed proximate to the second end 212, the airflow directing device 50 is correspondingly configured as an air extractor. Through setting up air current guiding device 50 in order to guide the flow direction of air current to can ensure can not produce the problem of perk after polaroid 21 breaks away from back polaroid adsorption carrier 20, thereby avoid the attached end of polaroid 21 to produce the bubble, thereby be favorable to further guaranteeing the laminating roughness between polaroid 21 and the glass substrate 11, be favorable to further avoiding attached bad.

In some embodiments, the attachment unit 40 includes a base 41, an attachment roller 43, and a connection 42. The attaching roller 43 is disposed above the base 41, and the connecting portion 42 has one end connected to the base 41 and the other end connected to the attaching roller 43, and the connecting portion 42 is made of an elastic material. Specifically, the elastic material may be at least one of silica gel, rubber, polyethylene, and the like. Because in the attaching process, the attaching roller 43 generates an acting force on the polarizer 21 along the second direction Y, i.e. the vertical direction from bottom to top, the connecting portion 42 is made of an elastic material, so that the connecting portion 42 has a deformation space in the first direction X, and an upward elastic force can be uniformly generated, so that the attaching roller 43 can be tightly abutted on the polarizer 21, and further the polarizer 21 can be tightly attached to the glass substrate 11, which is favorable for further reducing bubbles between the polarizer 21 and the glass substrate 11 and further improving the attaching yield.

In some embodiments, the application roller 43 is made of an elastic material. Specifically, the elastic material may be at least one of silica gel, rubber, polyethylene, and the like. The attached roller 43 is made of elastic materials, so that when the attached roller 43 acts on the surface of the polaroid 21, the attached roller 43 can deform to enlarge the contact area with the surface of the polaroid 21, the pressure intensity is reduced, the damage to the polaroid 21 caused by the attached roller 43 is avoided, the processing yield is further improved, and the consumable is saved.

In some embodiments, the attachment unit 40 further includes an attachment driving unit (not shown). The attachment driving unit is connected to the base 41, and is used to drive the attachment unit 40 to reciprocate along the first direction X. Illustratively, the attachment driving unit may be a mechanism such as a slide rail or a telescopic cylinder capable of reciprocating the attachment unit 40 in the horizontal direction. Wherein the first direction X is a horizontal direction, and the attaching unit 40 reciprocates along the horizontal direction during the attaching process. Since the attachment unit 40 is made of elastic material and has elastic force, when the attachment unit 40 contacts the polarizer 21 at the initial position, the connection portion 42 can generate compression elastic force by reciprocating the attachment unit 40 along the horizontal direction, so that the attachment unit 40 can be more tightly abutted against the surface of the polarizer, and air bubbles can be further prevented from being generated in the lamination process of the polarizer 21.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments. In the implementation, each unit or structure may be implemented as an independent entity, or may be implemented as the same entity or several entities in any combination, and the implementation of each unit or structure may be referred to the foregoing method embodiments and will not be repeated herein.

The foregoing describes in detail a polarizer attaching device provided in the embodiments of the present application, and specific examples are applied to illustrate principles and implementations of the embodiments of the present application, where the illustration of the above embodiments is only for helping to understand the technical solutions and core ideas of the embodiments of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (7)

1. A polarizer attaching apparatus, comprising:

a substrate adsorption stage for adsorbing a glass substrate;

the polaroid adsorption carrier is used for adsorbing the polaroid, a cavity is formed in the polaroid adsorption carrier, the polaroid adsorption carrier is provided with a first surface and a second surface which are opposite, the polaroid adsorption carrier comprises a plurality of hollowed-out parts penetrating through the first surface and the second surface, the polaroid is adsorbed on the first surface and covers part of the hollowed-out parts, and the hollowed-out parts are communicated with the cavity;

the negative pressure source is connected with the polaroid adsorption carrier and is used for enabling the cavity inside the polaroid adsorption carrier to form negative pressure so as to adsorb the polaroid;

an attaching unit for attaching the polarizer to the glass substrate;

the polarizer adsorption carrier is provided with a plurality of vent holes, and the vent holes are communicated with the cavity;

the hollow parts are arranged at intervals along a first direction and/or a second direction, the cavities extend along the first direction and/or the second direction, the vent holes are arranged at intervals along the first direction and/or the second direction, and the first direction and the second direction are crossed;

the hollowed-out part is of a cross grid-shaped hollowed-out structure, the polaroid adsorption carrier comprises a plurality of connecting ribs, and the connecting ribs are crossed and enclosed to form the hollowed-out part;

the cavity is formed in the connecting rib, the vent hole comprises a first air hole and a second air hole, the connecting rib is arranged on the first face, at least one side face of the connecting rib is provided with the second air hole, and the first air hole, the second air hole and the hollowed-out portion are mutually communicated.

2. The polarizer attaching apparatus according to claim 1, wherein the polarizer adsorbing stage includes an adsorbing region and a peripheral region, the peripheral region being located at a periphery of the adsorbing region;

the polarizer is arranged in the adsorption area, the hollowed-out part is partially positioned in the peripheral area, and the peripheral area is provided with the vent holes.

3. The polarizer attaching apparatus according to claim 1 or 2, wherein the polarizer adsorbing stage has a first end portion and a second end portion, the polarizer is attached to the glass substrate along a direction in which the first end portion points to the second end portion, and the negative pressure source is located at the second end portion.

4. The polarizer attaching apparatus of claim 3, further comprising:

and the airflow guiding device is arranged at a distance from the attaching unit and is close to the first end part or the second end part.

5. The polarizer attaching apparatus of claim 1, wherein the attaching unit includes:

a base;

the attaching roller is arranged above the base;

and one end of the connecting part is connected with the base, the other end of the connecting part is connected with the attaching roller, and the connecting part is made of elastic materials.

6. The polarizer attaching apparatus of claim 5, wherein the attaching unit further comprises:

and the attaching driving unit is connected with the base and used for driving the attaching unit to reciprocate along a first direction.

7. The polarizer attaching apparatus of claim 5, wherein the attaching roller is made of an elastic material.