CN115167025B - Preparation method of display device - Google Patents

Preparation method of display device Download PDF

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Publication number
CN115167025B
CN115167025B CN202210836579.XA CN202210836579A CN115167025B CN 115167025 B CN115167025 B CN 115167025B CN 202210836579 A CN202210836579 A CN 202210836579A CN 115167025 B CN115167025 B CN 115167025B
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Prior art keywords
polaroid
polarizer
cutting
release layer
edge
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CN202210836579.XA
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CN115167025A (en
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吴大钊
肖为伟
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Suzhou China Star Optoelectronics Technology Co Ltd
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Suzhou China Star Optoelectronics Technology Co Ltd
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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
    • G02F1/133351—Manufacturing of individual cells out of a plurality of cells, e.g. by dicing
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Polarising Elements (AREA)

Abstract

The application discloses a preparation method of a display device, wherein a first polaroid and a second polaroid are spliced and attached to one side surface of a display panel, and the restriction of the size of a polaroid material on a large-size display device is broken through the spliced polaroid. And in the splicing area of the first polaroid and the second polaroid, part of the second polaroid is overlapped on the first polaroid to form an overlapped part. And cutting the overlapped part of the splicing area according to a first preset cutting length. By cutting the overlapping portion of the first polarizer and the second polarizer with the first preset cutting length, the size of the required splice can be adjusted, and even seamless splicing can be achieved. And after cutting, removing the cut first polaroid and the cut second polaroid, and attaching the second polaroid corresponding to the vicinity of the splicing area to complete the preparation of the display device.

Description

Preparation method of display device
Technical Field
The application belongs to the field of display, and particularly relates to a preparation method of a display device.
Background
Currently, in the display field, some display panels need to be attached with polarizers on two sides to image a display device. However, the size of the polarizer material is limited, which limits the size of the display device, and is not beneficial to the production of oversized display devices. Therefore, the polarizers are required to be spliced and attached to break through the limitation of the size of the polarizers, so that a large-size display device is realized. The existing polaroid splicing technology is not beneficial to adjusting the size of a gap for splicing the polaroids, so that obvious splice appears at the spliced part of the polaroids of the display device. Therefore, there is a need for a method for controlling the size of the seams of the polarizers in the display device, so as to produce a large-sized display device and improve the display effect of the large-sized display device.
Disclosure of Invention
The application aims to provide a preparation method of a display device, which can adjust the size of a seam of a polaroid, break through the limitation of the size of a polaroid material and produce a large-size display device.
In order to solve the technical problems, the application provides a preparation method of a display device, which comprises the following steps:
providing a display panel;
splicing and attaching a first polaroid and a second polaroid on one side surface of the display panel, wherein the first polaroid is positioned on one side of the second polaroid; in the splicing area of the first polaroid and the second polaroid, part of the second polaroid is overlapped on the first polaroid to form an overlapped part;
cutting the overlapped part of the splicing area according to a first preset cutting length;
removing the cut first polarizer and the cut second polarizer;
attaching the second polarizer corresponding to the vicinity of the spliced region.
In some embodiments, cutting the overlapping portion of the splice area according to a first preset cut length includes the steps of:
providing a first double-edge cutter, wherein the first double-edge cutter comprises a first cutting edge and a second cutting edge positioned on one side of the first cutting edge; the tip of the first blade is lower than the tip of the second blade;
and cutting a part of the first polaroid corresponding to the splicing region by using the first cutting edge according to a first preset cutting length, and cutting a part of the second polaroid corresponding to the splicing region by using the second cutting edge.
In some embodiments, the first double-edged cutter further comprises a first elastic part and a second elastic part, wherein the first elastic part is arranged on one side of the first edge away from the second edge, and the second elastic part is arranged on one side of the second edge away from the first edge;
cutting the overlapped part of the splicing area according to a first preset cutting length, and further comprising the following steps:
according to a first preset cutting length, the first double-edge cutter is pressed down in the splicing area, the first elastic part is abutted against the first polaroid or the second polaroid, and the second elastic part is abutted against the second polaroid;
and continuing to press the first double-edge cutter until the first cutting edge cuts off the part of the first polaroid corresponding to the splicing region, and the second cutting edge cuts off the part of the second polaroid corresponding to the splicing region.
In some embodiments, the step of forming the first polarizer includes the steps of:
providing a polaroid material, wherein the polaroid material comprises a first release layer, a first polarizing layer, a first adhesive layer and a second release layer which are sequentially laminated;
cutting the second release layer according to a second preset cutting length to separate the second release layer into two parts, wherein the second preset cutting length is larger than the first preset cutting length.
In some embodiments, the step of forming the first polarizer further comprises the steps of:
providing a second double-edge cutter, wherein the second double-edge cutter comprises a third cutting edge and a fourth cutting edge positioned at one side of the third cutting edge; the tip of the third edge is lower than the tip of the fourth edge;
cutting the polarizer material by using the third cutting edge to form the outline of the first polarizer; cutting the second release layer by using the fourth cutting edge according to the second preset cutting length to separate the second release layer into a first part and a second part so as to form the first polaroid; the length of the first portion is greater than the length of the second portion.
In some embodiments, the step of forming the second polarizer further comprises the steps of:
providing a polaroid material, wherein the polaroid material comprises a third release layer, a second polarizing layer, a second adhesive layer and a fourth release layer which are sequentially laminated;
cutting the fourth release layer according to a third preset cutting length to separate the fourth release layer into a third part and a fourth part so as to form the second polaroid; the length of the third portion is greater than the length of the fourth portion; wherein the third preset cut length is greater than the first preset cut length.
In some embodiments, the first polarizer and the second polarizer are spliced and attached on one side surface of the display panel, and the method comprises the following steps:
tearing off a first part of the second release layer, and attaching one side of the first polaroid, which is exposed out of the first adhesive layer, to the display panel;
tearing off a third part of the fourth release layer, and attaching one side of the second polaroid, which is exposed out of the second adhesive layer, to the display panel; in the spliced region, a second polarizer having the fourth portion is laminated on the first polarizer having the second portion.
In some embodiments, attaching the second polarizer corresponding to the vicinity of the stitching region includes:
tearing off the second part of the second release layer to expose the first adhesive layer, and attaching the exposed part of the first adhesive layer to the display panel;
tearing off the fourth part of the fourth release layer to expose the second adhesive layer, and attaching the exposed part of the second adhesive layer to the display panel.
In other embodiments, the first polarizer includes a first release layer, a first polarizing layer, a first adhesive layer, and a second release layer that are sequentially stacked; the second polaroid comprises a third release layer, a second polarizing layer, a second adhesive layer and a fourth release layer which are sequentially laminated;
splicing and attaching a first polaroid and a second polaroid on one side surface of the display panel, wherein the method comprises the following steps:
tearing off all the second release layers, and attaching one side of the first polaroid, which is exposed out of the first adhesive layer, to the display panel;
tearing off all the fourth release layers, and attaching one side of the second polaroid, which is exposed out of the second adhesive layer, to the display panel; in the splicing region, the second polarizer is laminated on the first polarizer.
Optionally, in some embodiments, after the step of attaching the second polarizer corresponding to the vicinity of the spliced region, the method includes the steps of:
and defoaming the first polaroid and the second polaroid.
According to the preparation method of the display device, the first polaroid and the second polaroid are spliced and attached to the surface of one side of the display panel, and the restriction of the size of the polaroid material on the large-size display device is broken through by the spliced polaroid. And in the splicing area of the first polaroid and the second polaroid, part of the second polaroid is overlapped on the first polaroid to form an overlapped part. And cutting the overlapped part of the splicing area according to a first preset cutting length. By cutting the overlapping portion of the first polarizer and the second polarizer with the first preset cutting length, the size of the required splice can be adjusted, and even seamless splicing can be achieved. And after cutting, removing the cut first polaroid and the cut second polaroid, and attaching the second polaroid corresponding to the vicinity of the splicing area to complete the preparation of the display device.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a method for manufacturing a display device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of step S1 in the method for manufacturing a display device according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of steps S21-S24 in a method for manufacturing a display device according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of steps S25-S26 in the method for manufacturing a display device according to an embodiment of the present application;
FIG. 5 is a schematic structural diagram of steps S27-S28 in a method for manufacturing a display device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of step S3 in the method for manufacturing a display device according to the embodiment of the present application;
fig. 7 is a schematic structural diagram of step S4 in the method for manufacturing a display device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of step S5 in the method for manufacturing a display device according to the embodiment of the present application;
FIG. 9 is a schematic diagram of a display device according to an embodiment of the present application;
FIG. 10 is a top view of the display device of FIG. 9;
FIG. 11 is a schematic structural diagram of a display device according to another embodiment of the present application;
fig. 12 is a top view of the display device of fig. 11.
Reference numerals: 10-a first polarizer; 20-a second polarizer; 30-a third polarizer; p-splicing area; a C-overlap; d10—a first double-edged tool; d11—a first blade; d12—a second blade; d13—a first elastic portion; d14—a second elastic portion; d20—a second double-edged cutter; d21—a third blade; d22—fourth blade; l1-a first release layer; l2-a second release layer; l3-a third release layer; l4-a fourth release layer; part 1-first part; part 2-second part; part 3-third section; part 4-fourth section; p1-a first polarizing layer; p2-a second polarizing layer; j1-a first adhesive layer; j2-a second adhesive layer; 100-a display panel; 1000-display device.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
It should be noted that, in the description of the present application, it should be understood that the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
Referring to fig. 1, fig. 1 is a flowchart of a method for manufacturing a display device according to an embodiment of the application. Correspondingly, the embodiment of the application provides a preparation method of a display device, which comprises the following steps:
step S1, providing a display panel;
step S2, splicing and attaching a first polaroid and a second polaroid on the surface of one side of the display panel, wherein the first polaroid is positioned on one side of the second polaroid; in the splicing area of the first polaroid and the second polaroid, part of the second polaroid is overlapped on the first polaroid to form an overlapped part;
s3, cutting the overlapped part of the splicing area according to a first preset cutting length;
s4, removing the cut first polaroid and the cut second polaroid;
and S5, attaching a second polaroid corresponding to the vicinity of the splicing region.
In the method for manufacturing the display device of this embodiment, the display device 1000 of this embodiment is described as an example, but is not limited thereto.
According to the manufacturing method of the display device, the first polaroid and the second polaroid are spliced and attached to the surface of one side of the display panel, and the restriction of the size of the polaroid material on the large-size display device is broken through by the spliced polaroid. And in a splicing region P of the first polaroid and the second polaroid, a part of the second polaroid is overlapped on the first polaroid to form an overlapped part. And cutting the overlapped part of the splicing area according to a first preset cutting length. By cutting the overlapping portion of the first polarizer and the second polarizer with the first preset cutting length, the size of the required splice can be adjusted, and even seamless splicing can be achieved.
The following describes a method for manufacturing the display device of this embodiment.
Referring to fig. 2, in step S1, a display panel 100 is provided.
Specifically, the display panel 100 may be a liquid crystal display panel 100, or may be an organic light emitting (Organic Light Emitting Diode, OLED) display panel 100. The present application is not limited to the display panel 100.
And then proceeds to step S2.
Referring to fig. 3 to 5, in step S2, a first polarizer 10 and a second polarizer 20 are spliced and attached to a surface of one side of the display panel 100, where the first polarizer 10 is located on one side of the second polarizer 20. In the spliced region P of the first polarizer 10 and the second polarizer 20, a portion of the second polarizer 20 is overlapped on the first polarizer 10 to form an overlapped portion C.
It can be appreciated that the second polarizer 20 is partially overlapped on the first polarizer 10 to form an overlapped portion C, so as to adjust the splice gap between the first polarizer 10 and the second polarizer 20.
Specifically, step S2 includes the steps of:
referring to fig. 3, forming the first polarizer 10 includes the following steps:
step S21, providing a polaroid material, wherein the polaroid material comprises a first release layer L1, a first polarizing layer P1, a first adhesive layer J1 and a second release layer L2 which are sequentially laminated.
Optionally, the polarizer material may further include a compensation layer and a protection layer, and specifically, the polarizer material may include a first release layer L1, a first protection layer, a first polarizing layer P1, a first compensation layer, a first adhesive layer J1, and a second release layer L2 that are sequentially stacked. Alternatively, the first adhesive layer J1 is made of a pressure-sensitive adhesive, the first compensation layer is made of a cycloolefin polymer (CycloOlefinPolymer, COP), cellulose triacetate (Tri-cellulose Acetate, TCA), or the like, for example, COP material under the trade name SANUQI, TCA material under the trade names PK3 and NR01, respectively, and the first protection layer is made of a cellulose triacetate (Tri-cellulose Acetate, TCA) material, for example, a cellulose triacetate film (TAC).
Step S22, cutting the second release layer L2 according to a second preset cutting length to separate the second release layer L2 into two parts, wherein the second preset cutting length is larger than the first preset cutting length.
It should be noted that the first preset cutting length is a preset length of the cutting overlap portion C, and details are described below (step S3).
Alternatively, for example, the second preset cut length is greater than or equal to 15 millimeters, i.e., the second preset cut length is greater than the overlap C width. Alternatively, the second predetermined cut length may be 15 millimeters, 20 millimeters, 25 millimeters, or the like.
It can be appreciated that the second preset cutting length is greater than the width of the overlapping portion C, so that the width of the second release layer L2 of the splicing region P is greater than the width of the overlapping portion C, so that the first adhesive layer J1 of the overlapping portion C is not exposed and attached, and cutting and adjustment of the overlapping portion C of the splicing region P and subsequent tearing and attachment are facilitated.
Optionally, step S22 includes the steps of:
in step S221, a second double-edge cutter D20 is provided, where the second double-edge cutter D20 includes a third edge D21 and a fourth edge D22 located on one side of the third edge D21. The tip of the third edge D21 is lower than the tip of the fourth edge D22.
The distance between the tip of the third blade D21 and the tip of the fourth blade D22 is the thickness of the polarizer material from which the second release layer L2 is removed. It will be appreciated that the tip distances of the third and fourth blades D21 and D22 may be set such that, when the polarizer material is cut, the outline of the first polarizer 10 is cut completely while the second release layer L2 is effectively separated into two parts.
In step S222, the third blade D21 is used to cut the polarizer material to form the outline of the first polarizer 10. According to the second preset cutting length, the fourth blade D22 is used to cut the second release layer L2, so that the second release layer L2 is separated into a first part1 and a second part2, and the first polarizer 10 is formed.
The length of the first part1 is greater than the length of the second part 2.
The third cutting edge D21 cuts all film layers of the polaroid materials to form the outline of the first polaroid 10, the fourth cutting edge D22 cuts the second release layer L2 of the part of the first polaroid 10 used for splicing, and the second release layer L2 is separated into a first part1 and a second part2, so that the first adhesive layers J1 of different parts of the first polaroid 10 are exposed conveniently, and the subsequent splicing and attachment of the first polaroid 10 are facilitated.
Optionally, the third edge D21 and the fourth edge D22 of the second double-edged cutter D20 are fixedly connected, or the third edge D21 and the fourth edge D22 are relatively movable.
And placing one surface of the second release layer L2 of the polaroid material upwards, and pressing down the second double-edge cutter D20 to cut. When the third blade D21 is fixedly connected with the fourth blade D22, the third blade D21 can cut the polarizer material and the fourth blade D22 can cut the second release layer L2 at the same time, so that the steps for forming the first polarizer 10 are reduced, and the process is simplified. When the third blade D21 and the fourth blade D22 can move relatively, the third blade D21 cuts the polarizer material first, the fourth blade D22 cuts the second release layer L2 second, or the fourth blade D22 cuts the second release layer L2 first, and the third blade D21 cuts the polarizer material second. The cut first polarizer 10 includes a second release layer L2 separated into a first part1 and a second part 2.
Alternatively, the third blade D21 may be a square blade, and the fourth blade D22 may be a straight blade or a square blade, and the square blade side length of the third blade D21 is longer than the side length of the fourth blade D22. It will be appreciated that the third blade D21 cuts the polarizer material with a square blade, resulting in a first polarizer 10 having a contour that facilitates the splicing with the second polarizer 20.
With continued reference to fig. 3, the step of forming the second polarizer 20 includes:
in step S23, a polarizer material is provided. The polaroid material comprises a third release layer L3, a second polarizing layer P2, a second adhesive layer J2 and a fourth release layer L4 which are sequentially laminated.
In step S24, the fourth release layer L4 is cut according to the third preset cutting length, so that the fourth release layer L4 is separated into the third part3 and the fourth part4 to form the second polarizer 20. The length of the third part3 is greater than the length of the fourth part 4. Wherein the third preset cut length is greater than the first preset cut length.
Optionally, the third preset cut length is greater than 15 millimeters, i.e. the third preset cut length is greater than the overlap C width.
The second polarizer 20 may be formed using a second double-edged cutter D20 forming the first polarizer 10. The method, principle and function of each step for forming the second polarizer 20 can be referred to as the method, principle and function of each step for forming the first polarizer 10, and will not be described herein.
It should be noted that the steps of forming the first polarizer 10 and the second polarizer 20 are not sequential.
And then sequentially goes to step S25 and step S26.
Referring to fig. 4, the first polarizer 10 and the second polarizer 20 are spliced and attached on a side surface of the display panel 100, and the method comprises the following steps:
in step S25, the first portion 1 of the second release layer L2 is torn off, and one side of the first polarizer 10 exposed to the first adhesive layer J1 is attached to the display panel 100.
Specifically, the first portion part1 of the second release layer L2 is torn off, and the main body portion of the first polarizer 10 corresponding to the first portion part1 is attached and fixed on the display panel 100.
In step S26, the third portion part3 of the fourth release layer L4 is torn off, and one side of the second polarizer 20 exposed to the second adhesive layer J2 is attached to the display panel 100. In the splicing region P, the second polarizer 20 having the fourth partial part4 is laminated on the first polarizer 10 having the second partial part 2.
And tearing off the third part3 of the fourth release layer L4, and attaching and fixing the main body part of the second polarizer 20 corresponding to the third part3 on the display panel 100. In the splicing region P, the second polarizer 20 corresponding to the fourth part4 is not attached to the first polarizer 10 stacked therewith, and the first polarizer 10 corresponding to the second part2 is not attached to the display panel 100 thereunder. The second release layer L2 and the fourth release layer L4 are torn off in a split mode, and the first polaroid 10 and the second polaroid 20 are attached in a split mode, so that the main body portions of the first polaroid 10 and the second polaroid 20 are fixed on the display panel 100, the spliced portions can be conveniently stacked, cut, torn off and attached, the phenomenon that secondary cutting is affected due to the fact that the spliced portions are attached together is avoided, and uneven film layers are formed through extrusion stacking.
Alternatively, in some embodiments, step S1 proceeds to steps S21, S23, S27, S28 in sequence.
Please refer to fig. 5.
In step S27, all the second release layers L2 are torn off, and one side of the first polarizer 10 exposed to the first adhesive layer J1 is attached to the display panel 100.
In step S28, all the fourth release layers L4 are torn off, and one side of the second polarizer 20 with the exposed second adhesive layer J2 is attached to the display panel 100. In the spliced region P, the second polarizer 20 is laminated on the first polarizer 10.
It will be appreciated that this embodiment differs from the above embodiments in that the second release layer L2 and the fourth release layer L4 are complete film layers. And tearing off all the second release layers L2, and attaching the first polarizer 10 to the display panel 100. And tearing off all the fourth release layers L4, and partially attaching the second polarizer 20 to the display panel 100. The first polarizer 10 and the second polarizer 20 have an overlapping portion C, and the second polarizer 20 of the overlapping portion C is lifted so as not to be attached to the first polarizer 10 thereunder.
Subsequently, the process proceeds to step S3.
Referring to fig. 6, in step S3, the overlapping portion C of the splicing region P is cut according to the first preset cutting length.
Optionally, the overlapping portion C has a width greater than or equal to 10 mm and the first preset cut length is less than 10 mm. Alternatively, the length of the overlapping portion C may be 10 mm, 12 mm, 14 mm or 15 mm.
Specifically, step S3 includes the steps of:
in step S31, a first double-edged cutter D10 is provided. The first double-edged cutter D10 includes a first blade D11 and a second blade D12 located on one side of the first blade D11. The tip of the first blade D11 is lower than the tip of the second blade D12.
Optionally, the first blade D11 and the second blade D12 of the first double-edged cutter D10 are fixedly connected, or the first blade D11 and the second blade D12 may be relatively moved.
Optionally, in this embodiment, a distance between the tip of the first blade D11 and the tip of the second blade D12 is less than or equal to a thickness of the polarizer material removed from the first release layer L1 and the second release layer L2. The distance between the tip of the first blade D11 and the tip of the second blade D12 is greater than the thickness of the first release layer L1/the second release layer L2.
It will be appreciated that the arrangement of the tip distances of the first blade D11 and the second blade D12 may ensure that the film layers of the first polarizer 10 except the second release layer L2 and the film layers of the second polarizer 20 except the fourth release layer L4 are completely cut in the overlapping portion C.
Optionally, the first double-edged cutter D10 further includes a first elastic portion D13 and a second elastic portion D14. The first elastic portion D13 is disposed on a side of the first blade D11 away from the second blade D12, and the second elastic portion D14 is disposed on a side of the second blade D12 away from the first blade D11.
Alternatively, the first elastic portion D13 and the second elastic portion D14 are sponge. Alternatively, the lower ends of the first elastic portion D13 and the second elastic portion D14 are both flush with the tip of the first blade D11.
Alternatively, the first blade D11 and the second blade D12 of the first double-edged cutter D10 are both offset blade edges of the in-line blade. The offset blade edge means that one side of the blade is a flat side edge, and the other side is a sharp side edge for cutting. The side of the first blade D11 far away from the second blade D12 is a flat side, the side close to the second blade D12 is a sharp side for cutting, the side of the second blade D12 far away from the first blade D11 is a flat side, and the side close to the first blade D11 is a sharp side for cutting. It will be appreciated that the provision of flat sides of the first and second blades D11 and D12 facilitates the conforming of the first and second resilient portions D13 and D14. The straight-shaped offset blades of the first blade D11 and the second blade D12 can enable the cutting surfaces of the first polaroid 10 and the second polaroid 20 to be flat after cutting, and are beneficial to the edge lamination of the first polaroid 10 and the second polaroid 20 at the spliced position after cutting.
In step S32, according to the first preset cutting length, the portion of the first polarizer 10 corresponding to the splicing region P is cut by the first blade D11, and the portion of the second polarizer 20 corresponding to the splicing region P is cut by the second blade D12.
It can be understood that the second polarizer 20 is partially stacked on the first polarizer 10 to form an overlapping portion, and the second polarizer 20 is stacked on the first polarizer 10 at the overlapping portion, so that the tip of the first blade D11 is lower than the tip of the second blade D12, and the first polarizer 10 and the second polarizer 20 can be cut by the first double-blade cutter D10.
The second polarizer 20 is overlapped on the first polarizer 10 to form a right triangle, and the hypotenuse of the right triangle is longer than the right triangle. After the overlapping portion of the first polarizer 10 and the second polarizer 20 is cut, since the hypotenuse of the right triangle is longer than the right angle side, the second polarizer 20 in the splicing region P may be longer than the first polarizer 10 in the splicing region P, so that the first polarizer 10 and the second polarizer 20 at the splicing position are extruded mutually, and cannot be bonded flatly. After the first polarizer 10 is attached to the portion of the splicing region P of the second polarizer 20 according to the first preset cutting length, the cut surface can be flush, or a gap is formed between the first polarizer 10 and the second polarizer 20 according to the distance formed by the first preset cutting length.
Specifically, step S32 includes the steps of:
in step S321, the first double-edge tool D10 is pressed down in the splicing region P according to the first preset cutting length, the first elastic portion D13 abuts against the first polarizer 10 or the second polarizer 20, and the second elastic portion D14 abuts against the second polarizer 20.
In step S322, the first double-edge tool D10 is continuously pressed until the first edge D11 cuts the portion of the first polarizer 10 corresponding to the splicing region P, and the second edge D12 cuts the portion of the second polarizer 20 corresponding to the splicing region P.
When the first and second elastic parts D13 and D14 are pressed against the first polarizer 10 or the second polarizer 20 to shrink, the first and second blades D11 and D12 continue to descend, and the first and second polarizers 10 and 20 are cut. As can be appreciated, the first and second polarizers 10 and 20 can be fixed by pressing the first and second elastic portions D13 and D14, preventing edge deformation, slippage and dislocation of the polarizers during cutting, and improving cutting accuracy.
And then proceeds to step S4.
Referring to fig. 7, in step S4, the cut first polarizer 10 and the cut second polarizer 20 are removed.
The cut surplus first polarizer 10 and the second polarizer 20 are removed.
And then proceeds to step S5.
Referring to fig. 8, in step S5, a second polarizer 20 corresponding to the vicinity of the splicing region P is attached.
Specifically, step S5 includes the steps of:
in step S51, the second portion part2 of the second release layer L2 is torn off to expose the first adhesive layer J1, and the exposed portion of the first adhesive layer J1 is attached to the display panel 100.
In step S52, the fourth portion part4 of the fourth release layer L4 is torn off to expose the second adhesive layer J2, and the exposed portion of the second adhesive layer J2 is attached to the display panel 100.
And tearing off the second part2 of the second release layer L2 and the fourth part4 of the fourth release layer L4, and attaching the first polarizer 10 corresponding to the second part2 and the second polarizer 20 attached to the fourth part4 through the exposed first adhesive layer J1 and the exposed second adhesive layer J2, so that the first polarizer 10 and the second polarizer 20 are completely attached to the display panel 100.
Optionally, the method for manufacturing a display device of the present embodiment further includes step S6. Step S6 follows step S5.
Step S6, defoaming treatment is carried out on the first polaroid 10 and the second polaroid 20.
It can be understood that, the first polarizer 10 and the second polarizer 20 after being attached are defoamed, so that bubbles in the first polarizer 10/the second polarizer 20 can be removed, and the attachment of the first polarizer 10/the second polarizer 20 and the display panel 100 is more compact. Optionally, the first polarizer 10/second polarizer 20 may be pressed during the defoaming treatment, so that the first polarizer 10/second polarizer 20 is more tightly attached to the display panel 100.
Optionally, the method for manufacturing a display device of the present embodiment further includes step S7. Step S7 follows step S6.
In step S7, the third polarizer 30 is attached on the other side surface of the display panel 100.
This completes the manufacturing process of the display device of the present embodiment.
The embodiment of the application also provides a display device 1000, and the display device 1000 is manufactured by using the manufacturing method.
According to the first preset cutting length, the cut and attached first polarizer 10 and second polarizer 20 are flush, i.e. the cut surfaces of the first polarizer 10 and second polarizer 20 are attached, see fig. 9 and 10. Alternatively, a gap is formed at the joint of the attached first polarizer 10 and the second polarizer 20, refer to fig. 11 and 12.
The display device 1000 prepared by the preparation method can control the size of the splice joint of the polarizer splicing position, break through the limitation of the polarizer material size on the large-size display device 1000, and improve the display effect.
According to the preparation method of the display device, the first polaroid and the second polaroid are spliced and attached to the surface of one side of the display panel, and the restriction of the size of the polaroid material on the large-size display device is broken through by the spliced polaroid. And in the splicing area of the first polaroid and the second polaroid, part of the second polaroid is overlapped on the first polaroid to form an overlapped part. And cutting the overlapped part of the splicing area according to a first preset cutting length. By cutting the overlapping portion of the first polarizer and the second polarizer with the first preset cutting length, the size of the required splice can be adjusted, and even seamless splicing can be achieved. And after cutting, removing the cut first polaroid and the cut second polaroid, and attaching the second polaroid corresponding to the vicinity of the splicing area to complete the preparation of the display device.
The above description is made in detail of a method for manufacturing a display device according to an embodiment of the present application, and specific examples are applied to illustrate the principles and embodiments of the present application, and the above description of the examples is only for helping to understand the method and core ideas of the present application. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the application can be made without departing from the principles of the application and these modifications and adaptations are intended to be within the scope of the application as defined in the following claims.

Claims (10)

1. A method of manufacturing a display device, the method comprising the steps of:
providing a display panel;
splicing and attaching a first polaroid and a second polaroid on one side surface of the display panel, wherein the first polaroid is positioned on one side of the second polaroid; in the splicing area of the first polaroid and the second polaroid, part of the second polaroid is overlapped on the first polaroid to form an overlapped part;
cutting the overlapped part of the splicing area according to a first preset cutting length;
removing the cut first polarizer and the cut second polarizer;
attaching the second polaroid corresponding to the vicinity of the splicing area, wherein after attaching, the tangent plane of the first polaroid is flush with the tangent plane of the second polaroid or a gap is formed between the tangent plane of the first polaroid and the tangent plane of the second polaroid.
2. The method of manufacturing a display device according to claim 1, wherein cutting the overlapping portion of the splice area according to a first preset cutting length comprises the steps of:
providing a first double-edge cutter, wherein the first double-edge cutter comprises a first cutting edge and a second cutting edge positioned on one side of the first cutting edge; the tip of the first blade is lower than the tip of the second blade;
and cutting a part of the first polaroid corresponding to the splicing region by using the first cutting edge according to a first preset cutting length, and cutting a part of the second polaroid corresponding to the splicing region by using the second cutting edge.
3. The method for manufacturing a display device according to claim 2, wherein the first double-edge cutter further comprises a first elastic portion and a second elastic portion, the first elastic portion is disposed on a side of the first edge away from the second edge, and the second elastic portion is disposed on a side of the second edge away from the first edge;
cutting the overlapped part of the splicing area according to a first preset cutting length, and further comprising the following steps:
according to a first preset cutting length, the first double-edge cutter is pressed down in the splicing area, the first elastic part is abutted against the first polaroid or the second polaroid, and the second elastic part is abutted against the second polaroid;
and continuing to press the first double-edge cutter until the first cutting edge cuts off the part of the first polaroid corresponding to the splicing region, and the second cutting edge cuts off the part of the second polaroid corresponding to the splicing region.
4. A method of manufacturing a display device according to claim 2 or claim 3, wherein the step of forming the first polarizer comprises the steps of:
providing a polaroid material, wherein the polaroid material comprises a first release layer, a first polarizing layer, a first adhesive layer and a second release layer which are sequentially laminated;
cutting the second release layer according to a second preset cutting length to separate the second release layer into two parts, wherein the second preset cutting length is larger than the first preset cutting length.
5. The method of manufacturing a display device according to claim 4, wherein the step of forming the first polarizer further comprises the steps of:
providing a second double-edge cutter, wherein the second double-edge cutter comprises a third cutting edge and a fourth cutting edge positioned at one side of the third cutting edge; the tip of the third edge is lower than the tip of the fourth edge;
cutting the polarizer material by using the third cutting edge to form the outline of the first polarizer; cutting the second release layer by using the fourth cutting edge according to the second preset cutting length to separate the second release layer into a first part and a second part so as to form the first polaroid; the length of the first portion is greater than the length of the second portion.
6. The method of manufacturing a display device according to claim 5, wherein the step of forming the second polarizer further comprises the steps of:
providing a polaroid material, wherein the polaroid material comprises a third release layer, a second polarizing layer, a second adhesive layer and a fourth release layer which are sequentially laminated;
cutting the fourth release layer according to a third preset cutting length to separate the fourth release layer into a third part and a fourth part so as to form the second polaroid; the length of the third portion is greater than the length of the fourth portion; wherein the third preset cut length is greater than the first preset cut length.
7. The method for manufacturing a display device according to claim 6, wherein the first polarizer and the second polarizer are attached to a side surface of the display panel by splicing, comprising the steps of:
tearing off a first part of the second release layer, and attaching one side of the first polaroid, which is exposed out of the first adhesive layer, to the display panel;
tearing off a third part of the fourth release layer, and attaching one side of the second polaroid, which is exposed out of the second adhesive layer, to the display panel; in the spliced region, a second polarizer having the fourth portion is laminated on the first polarizer having the second portion.
8. The method of manufacturing a display device according to claim 7, wherein attaching the second polarizer corresponding to the vicinity of the spliced region, comprises the steps of:
tearing off the second part of the second release layer to expose the first adhesive layer, and attaching the exposed part of the first adhesive layer to the display panel;
tearing off the fourth part of the fourth release layer to expose the second adhesive layer, and attaching the exposed part of the second adhesive layer to the display panel.
9. The method for manufacturing a display device according to any one of claims 1 to 3, wherein the first polarizer comprises a first release layer, a first polarizing layer, a first adhesive layer, and a second release layer, which are sequentially stacked; the second polaroid comprises a third release layer, a second polarizing layer, a second adhesive layer and a fourth release layer which are sequentially laminated;
splicing and attaching a first polaroid and a second polaroid on one side surface of the display panel, wherein the method comprises the following steps:
tearing off all the second release layers, and attaching one side of the first polaroid, which is exposed out of the first adhesive layer, to the display panel;
tearing off all the fourth release layers, and attaching one side of the second polaroid, which is exposed out of the second adhesive layer, to the display panel; in the splicing region, the second polarizer is laminated on the first polarizer.
10. The method of manufacturing a display device according to claim 1, wherein after the step of attaching the second polarizer corresponding to the vicinity of the spliced region, the method comprises the steps of:
and defoaming the first polaroid and the second polaroid.
CN202210836579.XA 2022-07-15 2022-07-15 Preparation method of display device Active CN115167025B (en)

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