CN113485036A - Method and apparatus for attaching polarizing plate - Google Patents
Method and apparatus for attaching polarizing plate Download PDFInfo
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- CN113485036A CN113485036A CN202110600241.XA CN202110600241A CN113485036A CN 113485036 A CN113485036 A CN 113485036A CN 202110600241 A CN202110600241 A CN 202110600241A CN 113485036 A CN113485036 A CN 113485036A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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- Crystallography & Structural Chemistry (AREA)
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- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The application discloses a method and a device for attaching a polarizing plate, wherein the method comprises the following steps: arranging a polarizing plate on the outer surface of the conveyor belt, and synchronously transmitting the polarizing plate to the attaching area through the conveyor belt; synchronously transmitting the display panel to the attaching area; simultaneously driving the first attaching roller and the second attaching roller to rotate, and extruding the polarizing plate to be separated from the transmission belt and be adhered to the display panel; the second attaching roller is arranged on the inner surface of the conveyor belt, and the first attaching roller is arranged on one side, far away from the polarizing plate, of the display panel; the display panel and the polarizing plate synchronously leave the attaching area, and the attaching is completed. The air bubbles which are possibly generated in the attaching process of the display panel and the polarizing plate are reduced through the scheme.
Description
Technical Field
The present disclosure relates to display technologies, and particularly to an attaching method and an attaching device for a polarizing plate.
Background
With the development of display technology, Thin film transistor liquid crystal displays (TFT-LCDs) have been widely used in which polarizing plates are attached to both sides of a display panel in order to obtain polarized light. Generally, the conventional attachment methods include vertical and horizontal attachment methods. The vertical type attaching mode is characterized in that the display panel is vertically arranged during attaching, the display panel and the polarizing plates on two sides simultaneously move towards the direction of the attaching roller wheel, and the polarizing plates on two sides are attached to the display panel in a pressing mode through the attaching roller wheel; horizontal is similar to vertical.
However, in the attaching process, especially for the larger display panel, more bubbles are generated between the display panel and the polarizer, which affects the attaching effect; resulting in a problem of poor display effect.
Disclosure of Invention
The present application provides a method and an apparatus for attaching a polarizing plate, which can reduce bubbles generated during the attaching process of a display panel and the polarizing plate.
The application discloses a method for attaching a polarizing plate, which comprises the following steps:
arranging a polarizing plate on the outer surface of the conveyor belt, and synchronously transmitting the polarizing plate to the attaching area through the conveyor belt;
synchronously transmitting the display panel to the attaching area;
simultaneously driving the first attaching roller and the second attaching roller to rotate, and extruding the polarizing plate to be separated from the transmission belt and be adhered to the display panel; the second attaching roller is arranged on the inner surface of the conveyor belt, and the first attaching roller is arranged on one side, far away from the polarizing plate, of the display panel;
the display panel and the polarizing plate synchronously leave the attaching area, and the attaching is completed.
Optionally, the step of synchronously conveying the polarizing plate to the attaching area through a conveyor belt comprises:
when the polarizing plate and the display panel are detected to be transmitted to the attaching area;
moving the first attaching roller towards the direction of the second attaching roller so that the first attaching roller is attached to the display panel;
moving the second attaching roller towards the first attaching roller to attach the polarizer to the display panel;
the first attaching roller and the second attaching roller drive the display panel and the polarizing plate to move towards the direction far away from the attaching area.
Optionally, the moving speed of the polarizer is the same as the moving speed of the display panel.
Optionally, the first attaching roller is configured to move in a direction perpendicular to the display panel; the second attaching roller is configured to move in a direction perpendicular to the display panel.
Optionally, before the polarizing plate is attached to the display panel, an included angle between the polarizing plate and the display panel ranges from 15 degrees to 30 degrees.
The application discloses an attaching device of a polarizing plate, which is used for attaching the polarizing plate to a display panel; the method comprises the following steps: the device comprises a driving mechanism, a conveying mechanism and an attaching mechanism; the driving mechanism is used for bearing and driving the display panel to move to the attaching position; the transmission mechanism is used for bearing and driving the polarizing plate to move to the attaching position; the attaching mechanism is used for attaching the polarizing plate to the display panel and is arranged corresponding to the attaching position; the transfer mechanism includes: a conveyor belt and a drive wheel; the polarizing plate is arranged on the outer surface of the conveying belt, the driving wheel drives the conveying belt to rotate, and the conveying belt drives the polarizing plate to move to the attaching position; the attaching mechanism includes: a first attaching roller and a second attaching roller; the first attaching roller and the second attaching roller are oppositely arranged; the first attaching roller is arranged on one side of the display panel, which is far away from the polarizing plate; the second attaching roller is arranged on the inner surface of the conveying belt and corresponds to the attaching position.
Optionally, the attaching mechanism further includes a first lifting structure and a second lifting structure; the first lifting structure controls the first attaching roller to move in a direction perpendicular to the display panel; the second lifting structure controls the second attaching roller to move in the direction perpendicular to the display panel.
Optionally, the conveying mechanism further comprises an adhesion plate, and the adhesion plate is arranged on the outer surface of the conveying belt; the adhesion plate is used for adhering the polarizing plate.
Optionally, the conveying structure further comprises a first pressing wheel; the first pressing wheel is arranged on one side, away from the polarizing plate, of the second attaching roller; the first pressing wheel is arranged on the outer surface of the conveying belt, and the height of the first pressing wheel in the direction perpendicular to the display panel is lower than that of the second attaching roller.
Optionally, the attaching device further includes a third lifting structure, the third lifting structure is correspondingly disposed at one end of the conveying mechanism close to the attaching area, and the third lifting structure is used for adjusting the height of the conveying mechanism.
In the application, the attaching position corresponds to the position of the attaching mechanism, the first attaching roller and the second attaching roller form a closed state, namely the first attaching roller is attached to the display panel at the attaching position and generates certain pressure, the second attaching roller extrudes the polarizing plate through the conveyor belt and attaches the polarizing plate to the display panel by matching with the pressure of the first attaching roller; the first attaching roller and the second attaching roller press the polarizing plate and the display panel simultaneously, and the first attaching roller and the second attaching roller can drive the non-attached part of the polarizing plate and the display panel to move to the attaching position. It should be noted that the attaching process in this embodiment is performed in a clean room; the second attaching roller and the polarizing plate are located on different sides of the conveyor belt, namely the second attaching roller is not in direct contact with the polarizing plate. Correspondingly, at the attaching position, the first attaching roller is in contact with the display panel, the display panel is in contact with the polarizing plate, the polarizing plate is in contact with the conveyor belt, and the conveyor belt is in contact with the second attaching roller. The second is attached the gyro wheel and is not direct with the polarizing plate contact, therefore the second is attached the gyro wheel and is in extrusion process, can not extrude the polarizing plate deformation, and just be located when attaching the position at polarizing plate and display panel, can not because the attached gyro wheel of second directly extrudees the polarizing plate, produce the initial bubble line in the front, it is required to explain, for example, the vertical type is attached the mode, the direct contact polarizing plate extrusion in the twinkling of an eye when attaching of attaching gyro wheel, the polarizing plate glue film that causes warp, the glue film of deformation can't recover after attaching, the outward appearance is like the bubble, be called initial bubble. The application of the attaching device can prevent the generation of initial bubbles at the front end.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view of an attaching device of a first embodiment of the present application;
FIG. 2 is a schematic view of an applicator of a first embodiment of the present application;
FIG. 2A is an enlarged schematic view of region A of FIG. 2 of the present application;
FIG. 3 is a schematic view of an applicator of a second embodiment of the present application;
FIG. 4 is a schematic view of an applicator of a third embodiment of the present application;
FIG. 5 is a schematic view of an applicator of yet another embodiment of the present application;
FIG. 6 is a schematic illustration showing a step of an attaching method corresponding to an attaching apparatus according to an embodiment of the present application;
fig. 7 is a schematic step diagram of an attaching method corresponding to an attaching device according to yet another embodiment of the present application.
Wherein, 10, attaching device; 20. a polarizing plate; 30. a display panel; 200. a drive mechanism; 300. a transport mechanism; 310. a conveyor belt; 311. an adhesive sheet; 320. a drive wheel; 326. a first pinch roller; 400. an attachment mechanism; 401. an attachment position; 410. a first attaching roller; 420. a second attaching roller; 430. a first lifting structure; 440. a second lifting structure; 450. and a third lifting structure.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.
Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The present application is described in detail below with reference to the figures and alternative embodiments.
As a first embodiment of the present application, there is disclosed an attaching device for a polarizing plate, as shown in fig. 1 to 2, fig. 1 and 2 are schematic views of different states of the attaching device of the first embodiment of the present application before and during attachment, respectively; the attaching device 10 includes: a driving mechanism 200, a conveying mechanism 300 and an attaching mechanism 400; the driving mechanism 200 is used for carrying and driving the display panel 30 to move to the attaching position 401; the conveying mechanism 300 is used for carrying and driving the polarizer 20 to move to the attaching position 401; the attaching mechanism 400 is used for attaching the polarizer 20 to the display panel 30, and is disposed corresponding to the attaching position 401; the transfer mechanism 300 includes: a conveyor belt 310 and a drive wheel; the polarizer 20 is arranged on the outer surface of the conveyor belt 310, and the driving wheel drives the conveyor belt 310 to drive the polarizer 20 to move to the attaching position 401; the attachment mechanism 400 includes: a first attaching roller 410 and a second attaching roller 420; the first attaching roller 410 and the second attaching roller 420 are oppositely arranged; the first attaching roller 410 is disposed on a side of the display panel 30 away from the polarizer 20; the second attaching roller 420 is disposed on the inner surface of the conveyor belt 310 to correspond to the attaching position 401.
The attaching position 401 corresponds to the position of the attaching mechanism 400, and is closed by the first attaching roller 410 and the second attaching roller 420, that is, the first attaching roller 410 is attached to the display panel 30 at the attaching position 401 and generates a certain pressure, and the second attaching roller 420 extrudes the polarizer 20 through the conveyor belt 310 and attaches the polarizer 20 to the display panel 30 by matching the pressure of the first attaching roller 410; that is, the first attaching roller 410 and the second attaching roller 420 simultaneously press the polarizing plate 20 and the display panel 30, and the first attaching roller 410 and the second attaching roller 420 can also drive the non-attached portion of the polarizing plate 20 and the display panel 30 to move to the attaching position 401. It should be noted that the attaching process in this embodiment is performed in a clean room; the second attaching roller 420 and the polarizer 20 are disposed on different sides of the conveyor 310, i.e., the second attaching roller 420 does not directly contact the polarizer 20. Correspondingly, at the attaching position 401, as shown in fig. 2A, fig. 2A shows an enlarged schematic view of the area a in fig. 2, specifically, the first attaching roller 410 contacts with the display panel 30, the display panel 30 contacts with the polarizer 20, the polarizer 20 contacts with the conveyor belt 310, and the conveyor belt 310 contacts with the second attaching roller 420.
In this application, the second attaching roller 420 is not directly contacted with the polarizer 20, so the second attaching roller 420 does not extrude the polarizer 20 in the extruding process, and when the polarizer 20 and the display panel 30 are just located at the attaching position 401, the polarizer 20 is not directly extruded by the second attaching roller 420, the initial bubble line is generated at the front end, it should be noted that, for example, in the vertical attaching mode, the attaching roller is instantly extruded by directly contacting the polarizer 20 in the attaching process, the resulting deformation of the adhesive layer of the polarizer 20 is caused, the deformed adhesive layer can not be recovered after the attaching, and the appearance is like a bubble, which is called as the initial bubble. The application of the attaching device can prevent the generation of initial bubbles at the front end.
Before attaching the polarizer 20, the polarizer 20 needs to be attached to the conveyor belt 310, an adhesive plate 311 is disposed on the conveyor belt 310, and the adhesive plate 311 is disposed on the outer surface of the conveyor belt 310; the adhesive sheet 311 is used to attach the polarizing plate 20. The polarizing plate 20 is attached to the conveyor belt 310 by attaching the conveyor belt 310 to the supply end of the polarizing plate 20. In the attaching process of the polarizing plate 20 to the display panel 30, a portion of the polarizing plate 20 not attached to the display panel 30 is always attached to the transfer tape. Generally, when the display panel 30 is attached to the tail end, the polarizing plate 20 is warped to cause the tail end to be uneven due to the fact that the polarizing plate 20 is in contact with the display panel 30 in advance, thereby causing air bubbles at the attached tail end. In the present embodiment, since the unattached portion of the polarizing plate 20 does not come into contact with the display panel 30 in advance, the tail bubbles do not occur. What is more, it is important that the first attaching roller 410 contacts the display panel 30, the display panel 30 contacts the polarizer 20, the polarizer 20 contacts the conveyor belt 310, and the conveyor belt 310 contacts the second attaching roller 420 at the corresponding attaching position 401. In addition, the polarizing plate 20 between the first attaching roller 410 and the second attaching roller 420 is not warped, and the portion of the polarizing plate 20 located on the conveyor belt 310 and the portion of the polarizing plate 20 located at the attaching position 401 are not moved at the same speed. This application is through the yield of the production that above mode improved to the cost has been saved. Most importantly, the detection cost, such as the working hours of detection personnel and the cost of a polarizing plate, is saved, and further, a large amount of cost can be saved; the production cost is reduced, and the display panel has price advantage after being produced.
It should be noted that the conveyor belt 310 of the present application may also be an adhesive conveyor belt 310, i.e., the outer surface of the conveyor belt 310 has adhesive properties. For purposes of this application, the inner surface of the conveyor belt 310 refers to the side that requires contact by the drive wheel, and corresponds to the outer surface of the conveyor belt 310 opposite the inner surface of the conveyor belt 310.
In this embodiment, two driving wheels are provided, namely, the driving wheel 320 and the driving wheel 321; the driving wheel rotates counterclockwise to drive the transmission belt 310 to rotate, and the transmission belt 310 rotates to drive the polarizer 20 to move. In the direction perpendicular to the display panel 30, the installation height of the second attaching roller 420 is higher than that of the driving wheel; the driving wheel 320 and the driving wheel 321 are on the same horizontal line, the driving wheel 320, the driving wheel 321 and the second attaching roller 420 correspondingly form the triangular conveying belt 310 with the conveying belt 310, the polarizing plate 20 needs to be peeled off from the conveying belt 310 at the attaching position 401, and the polarizing plate 20 also needs to be adhered to the display panel 30 at the peeling position of the polarizing plate 20, so that the larger the angle of the conveying belt 310 at the second attaching roller 420 is, the smaller the force required for peeling the polarizing plate 20 off from the conveying belt 310 is; the belt 310 is also less affected. The corresponding polarizer 20 is located on the conveyor 310 between the driving wheel and the second roller 420, and the included angle between the polarizer 20 and the display panel 30 is 15 to 30 degrees. When the polarizing plate 20 is attached to the display panel 30, a certain angle is formed between the display panel 30 and the polarizing plate 20; it should be noted that the figure is a schematic diagram, and the length and the angle are only used as reference.
The moving speed of the polarizer 20 is the same as the moving speed of the display panel 30; as can be seen from fig. 2 and fig. 2A, in the present application, a part of the polarizer 20 is located on the display panel 30 and a part of the polarizer is located on the conveyor 310 during the attaching process, and in this case, if a speed difference occurs, creases, bubbles, etc. of the polarizer 20 are easily caused, thereby causing poor attaching. The driving mechanism 200 used in the present application may be a transmission wheel set, that is, a plurality of transmission wheels are provided, and the display panel 30 is transmitted by the transmission wheels contacting with the surface of the display panel 30.
As a second embodiment of the present application, as shown in fig. 3 showing a schematic view of another attaching apparatus of the present application, there is disclosed an attaching apparatus of a polarizing plate, comprising: a driving mechanism 200, a conveying mechanism 300 and an attaching mechanism 400; the attachment mechanism 400 includes: a first attaching roller 410, a second attaching roller 420, a first lifting structure 430 and a second lifting structure 440; the first attaching roller 410 and the second attaching roller 420 are oppositely arranged; the first attaching roller 410 is disposed on a side of the display panel 30 away from the polarizer 20; the second attaching roller 420 is disposed on the inner surface of the conveyor belt 310 to correspond to the attaching position 401. The first lifting structure 430 controls the first attaching roller 410 to move in a direction perpendicular to the display panel 30; the second lifting structure 440 controls the second attaching roller 420 to move in a direction perpendicular to the display panel 30.
The first and second attaching rollers 410 and 420 in the attaching device in this embodiment can move in a direction perpendicular to the display panel 30. The initial state of the first attaching roller 410 may not be attached to the display panel 30, and when the display panel 30 moves to the corresponding attaching position 401, the first attaching roller 410 is moved to be attached to the display panel 30. In this embodiment, the first attaching roller 410 and the second attaching roller 420 need to be clamped with the display panel 30, the polarizer 20, and the conveyor 310 therebetween, respectively, and need a certain pressure. When the display panel 30 and the polarizer 20 are just sent to the attaching position 401, if the distance between the first attaching roller 410 and the second attaching roller 420 is small, the display panel 30 and the polarizer 20 will be pressed, and the polarizer 20 has a certain flexibility and is easily damaged by pressing.
Specifically, the first lifting structure 430 and the second lifting structure 440 can be lifted mechanically or hydraulically. The second lifting structure 440 enables the angle between the conveyor belt 310 and the horizontal between the second attachment roller 420 and the right driving wheel to be adjustable, and only the second lifting structure 440 is needed to adjust the angle; the angle between the polarizer 20 and the display panel 30 is 15 to 30 degrees. When the polarizer 20 is attached to the display panel 30, a certain angle is formed between the display panel 30 and the polarizer 20.
Specifically, the conveying mechanism 300 includes four driving wheels, corresponding to the position shown in fig. 3, the four driving wheels are located at four corners of the rectangle, namely, a driving wheel 320, a driving wheel 321, a driving wheel 322 and a driving wheel 323; the height of the second attaching roller 420 is higher than that of all the driving wheels (320, 321, 322, 323), and the second attaching roller 420, the driving wheels 322 and the driving wheels 323 form a triangle; drive wheel 322 and drive wheel 323 are on the same horizontal line. The transport structure further includes a first pinch roller 326; the first pressing wheel 326 is disposed on a side of the second attaching roller 420 away from the polarizer 20; the first pressing wheel 326 is disposed on the outer surface of the conveyor belt 310, and the first pressing wheel 326 is lower than the second attaching roller 420 in a direction perpendicular to the display panel 30. A first pressing wheel 326 is arranged at the left side corresponding to the second attaching roller 420, and the pressing wheel is used for making the angle of the conveyor belt 310 at the two sides of the second attaching roller 420 smaller, for example, the angle is closer to an obtuse angle without the first pressing wheel 326, and the angle is closer to a right angle or an acute angle after the first pressing wheel 326 is used; at the position where the polarizer 20 is peeled off, the polarizer 20 also needs to be adhered to the display panel 30, so the larger the angle of the conveyor belt 310 at the second attaching roller 420 is, and correspondingly, the smaller the force required for peeling the polarizer 20 off the conveyor belt 310 is; the belt 310 is also less affected.
As a third embodiment of the present application, fig. 4 is a schematic view of still another attaching apparatus of the present application, which discloses an attaching apparatus of a polarizing plate, and fig. 4 is a schematic view showing a conveying mechanism and a part of an attaching mechanism of an attaching apparatus, in which a driving mechanism (not shown in the present drawing, see fig. 1 to 3); the conveying mechanism comprises driving wheels (320, 321, 322, 323) and a conveying belt 310; the attachment mechanism includes a second attachment roller 420; the attaching device further comprises a third lifting structure 450, the third lifting structure 450 is correspondingly disposed at one end of the conveying mechanism near the attaching area, and the third lifting structure 450 is used for adjusting the height of the conveying mechanism 300 near one end of the attaching area. The contact angle of the polarizer 20 and the display panel 30 can be further controlled by the third lifting structure 450 in combination with the second lifting structure 440; reduce the bubbles which may be generated in the attaching process. It should be noted that the third lifting structure 450 may also be adopted near the driving wheel 321 in fig. 4; it is possible to realize that both sides of the transfer mechanism 300 can be lifted and lowered.
Specifically, the second lifting structure 440 can move left and right along the connection line between the driving wheel 320 and the driving wheel 321, and the third lifting structure 450 in this embodiment can lift or lower the conveying mechanism 300 and the attaching structure as a whole, which is suitable for the step of attaching the polarizer 20 to the conveyor belt 310. This step includes contacting the conveyor 310 at the second attaching roller 420 with the polarizing plate 20 using the third lifting structure 450 or the second lifting structure 440 in cooperation, so that the second lifting structure 440 moves from the driving wheel 321 in the direction of the driving wheel 320, during which the polarizing plate 20 is placed in the polarizing plate 20 supplying stage, and the polarizing plate 20 is attached to the conveyor 310 by the second attaching roller 420. After the step of attaching the polarizing plate 20 to the conveyor 310 is completed, the polarizing plate 20 is attached to the display panel 30.
As a further embodiment of the present application, fig. 5 shows a schematic view of another attachment apparatus of the present application; the difference between the two embodiments is that the first pressing wheel 326 and the second attaching roller 420 are controlled by the second lifting structure 440. The height between the first pressing wheel 326 and the second attaching roller 420 in fig. 4 can be adjusted by the second lifting structure 440, so that the included angles between the conveyor belts 310 on the two sides of the second attaching roller 420 have different angles, and the method is suitable for attaching the polarizing plates 20 with different viscosities. In fig. 5, the first pressing wheel 326 and the second attaching roller 420 have fixed heights, but the heights of the first pressing wheel 326 and the second attaching roller 420 can be adjusted by the second lifting structure 440, so that the conveyor belt 310 between the second attaching roller 420 and the driving wheel 323 has different horizontal inclination angles. Particularly, the method is suitable for the step of attaching the polarizing plate 20 to the conveyor 310.
As shown in fig. 6, the present application also discloses an attaching method of an attaching device corresponding to the attaching device of the polarizing plate, comprising the steps of:
s10: arranging a polarizing plate on the outer surface of the conveyor belt, and synchronously transmitting the polarizing plate to the attaching area through the conveyor belt;
s20: synchronously transmitting the display panel to the attaching area;
s30: simultaneously driving the first attaching roller and the second attaching roller to rotate, and extruding the polarizing plate to be separated from the transmission belt and be adhered to the display panel; the second attaching roller is arranged on the inner surface of the conveyor belt, and the first attaching roller is arranged on one side, far away from the polarizing plate, of the display panel;
s40: the display panel and the polarizing plate synchronously leave the attaching area, and the attaching is completed.
In this application, the corresponding is in attached position department, first attached gyro wheel with the display panel contact, display panel and polarizing plate contact, the polarizing plate with the conveyer belt contact, the conveyer belt with the attached gyro wheel contact of second. The second is attached the gyro wheel and is not direct with the polarizing plate contact, therefore the second is attached the gyro wheel and is in extrusion process, can not extrude the polarizing plate deformation, and just be located when attaching the position at polarizing plate and display panel, can not because the attached gyro wheel of second directly extrudees the polarizing plate, produce the initial bubble line in the front, it is required to explain, for example, the vertical type is attached the mode, the direct contact polarizing plate extrusion in the twinkling of an eye when attaching of attaching gyro wheel, the polarizing plate glue film that causes warp, the glue film of deformation can't recover after attaching, the outward appearance is like the bubble, be called initial bubble. The application of the attaching device can prevent the generation of initial bubbles at the front end.
Specifically, the step of synchronously transmitting the display panel to the attaching area comprises the following steps:
s21: when the polarizing plate and the display panel are detected to be transmitted to the attaching area;
s22: moving the first attaching roller towards the direction of the second attaching roller so that the first attaching roller is attached to the display panel;
s23: moving the second attaching roller towards the first attaching roller to attach the polarizer to the display panel;
s24: the first attaching roller and the second attaching roller drive the display panel and the polarizing plate to move towards the direction far away from the attaching area.
It should be noted that, when the display panel and the polarizer do not enter the attachment region, the initial state of the first and second attachment rollers is far away from the attachment position. The step that is applicable to the polarizing plate and attaches to conveyer belt, polarizing plate and attaches to display panel, in this embodiment, through the attached gyro wheel drive of first attached gyro wheel and second display panel removes to the direction of keeping away from attached region, removes to the scheme of accomplishing the attachment promptly, and when the polarizing plate is attached, under the same general situation, the display panel of attached position department can't be removed, needs drive other regions except that attached region to display panel for display panel moves forward.
It should be noted that, the limitations of each step in the present disclosure are not considered to limit the order of the steps without affecting the implementation of the specific embodiments, and the steps written in the foregoing may be executed first, or executed later, or even executed simultaneously, and as long as the present disclosure can be implemented, all the steps should be considered as belonging to the protection scope of the present application.
It should be noted that the inventive concept of the present application can form a great many embodiments, but the present application has a limited space and cannot be listed one by one, so that any combination of the above-described embodiments or technical features can form a new embodiment without conflict, for example: the conveyor belt in the first embodiment and the first pressing wheel in the second embodiment can be applied to different embodiments; and after the embodiments or technical features are combined, the original technical effect is enhanced.
The technical solution of the present application can be widely applied to various display panels, such as TN (Twisted Nematic) display panel, IPS (In-Plane Switching) display panel, VA (Vertical Alignment) display panel, MVA (Multi-Domain Vertical Alignment) display panel, and of course, other types of display panels, such as OLED (Organic Light-Emitting Diode) display panel, and the above solution can be applied thereto.
The foregoing is a more detailed description of the present application in connection with specific alternative embodiments, and the specific implementations of the present application are not to be considered limited to these descriptions. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.
Claims (10)
1. A method for attaching a polarizing plate, comprising the steps of:
arranging a polarizing plate on the outer surface of the conveyor belt, and synchronously transmitting the polarizing plate to the attaching area through the conveyor belt;
synchronously transmitting the display panel to the attaching area;
simultaneously driving the first attaching roller and the second attaching roller to rotate, and extruding the polarizing plate to be separated from the transmission belt and be adhered to the display panel; the second attaching roller is arranged on the inner surface of the conveyor belt, and the first attaching roller is arranged on one side, far away from the polarizing plate, of the display panel;
the display panel and the polarizing plate synchronously leave the attaching area, and the attaching is completed.
2. The method of claim 1, wherein the step of synchronously transferring the polarizing plate to the attachment region via a conveyor belt comprises:
when the polarizing plate and the display panel are detected to be transmitted to the attaching area;
moving the first attaching roller towards the direction of the second attaching roller so that the first attaching roller is attached to the display panel;
moving the second attaching roller towards the first attaching roller to attach the polarizer to the display panel;
the first attaching roller and the second attaching roller drive the display panel and the polarizing plate to move towards the direction far away from the attaching area.
3. The method of claim 1, wherein the moving speed of the polarizer is the same as the moving speed of the display panel.
4. The method of attaching a polarizing plate according to claim 1,
the first attaching roller is configured to move in a direction perpendicular to the display panel; the second attaching roller is configured to move in a direction perpendicular to the display panel.
5. The method of claim 1, wherein an angle between the polarizer and the display panel is in a range of 15 degrees to 30 degrees before the polarizer is attached to the display panel.
6. An attaching device of a polarizing plate is used for attaching the polarizing plate to a display panel; it is characterized by comprising:
the driving mechanism is used for bearing and driving the display panel to move to the attaching position;
the conveying mechanism is used for bearing and driving the polarizing plate to move to the attaching position;
the attaching mechanism is used for attaching the polarizing plate to the display panel and is arranged corresponding to the attaching position;
the transfer mechanism includes: a conveyor belt and a drive wheel; the polarizing plate is arranged on the outer surface of the conveying belt, the driving wheel drives the conveying belt to rotate, and the conveying belt drives the polarizing plate to move to the attaching position;
the attaching mechanism includes: a first attaching roller and a second attaching roller; the first attaching roller and the second attaching roller are oppositely arranged;
the first attaching roller is arranged on one side of the display panel, which is far away from the polarizing plate; the second attaching roller is arranged on the inner surface of the conveying belt and corresponds to the attaching position.
7. The attaching device of a polarizing plate as defined in claim 1, wherein the attaching mechanism further comprises a first elevation structure and a second elevation structure; the first lifting structure controls the first attaching roller to move in a direction perpendicular to the display panel; the second lifting structure controls the second attaching roller to move in the direction perpendicular to the display panel.
8. The attaching device of a polarizing plate according to claim 1, wherein the conveying mechanism further comprises an adhesive plate provided on an outer surface of the conveyor belt; the adhesion plate is used for adhering the polarizing plate.
9. The apparatus of claim 1, wherein the transport mechanism further comprises a first pressing roller; the first pressing wheel is arranged on one side, away from the polarizing plate, of the second attaching roller; the first pressing wheel is arranged on the outer surface of the conveying belt, and the height of the first pressing wheel in the direction perpendicular to the display panel is lower than that of the second attaching roller.
10. The attaching device of a polarizing plate as claimed in claim 1, further comprising a third lifting structure, the third lifting structure being correspondingly disposed at an end of the transport mechanism near the attaching area, the third lifting structure being configured to adjust a height of the transport mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110600241.XA CN113485036A (en) | 2021-05-31 | 2021-05-31 | Method and apparatus for attaching polarizing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110600241.XA CN113485036A (en) | 2021-05-31 | 2021-05-31 | Method and apparatus for attaching polarizing plate |
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| Publication Number | Publication Date |
|---|---|
| CN113485036A true CN113485036A (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110600241.XA Pending CN113485036A (en) | 2021-05-31 | 2021-05-31 | Method and apparatus for attaching polarizing plate |
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| CN (1) | CN113485036A (en) |
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| CN207799271U (en) * | 2018-01-05 | 2018-08-31 | 合肥京东方显示技术有限公司 | A kind of polaroid attaching device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2751327Y (en) * | 2004-12-10 | 2006-01-11 | 群录自动化工业股份有限公司 | Sticking equipment |
| KR20070001703A (en) * | 2005-06-29 | 2007-01-04 | 삼성전자주식회사 | Apparatus for attaching polarizer to liquid crystal display |
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