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WO2020215544A1 - 液晶显示装置的制作方法 - Google Patents

液晶显示装置的制作方法 Download PDF

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Publication number
WO2020215544A1
WO2020215544A1 PCT/CN2019/101919 CN2019101919W WO2020215544A1 WO 2020215544 A1 WO2020215544 A1 WO 2020215544A1 CN 2019101919 W CN2019101919 W CN 2019101919W WO 2020215544 A1 WO2020215544 A1 WO 2020215544A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
polarizing
polarizer
identification
stripe
Prior art date
Application number
PCT/CN2019/101919
Other languages
English (en)
French (fr)
Inventor
田新斌
徐向阳
Original Assignee
深圳市华星光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Publication of WO2020215544A1 publication Critical patent/WO2020215544A1/zh

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Classifications

    • 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
    • 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

Definitions

  • the present invention relates to the field of display technology, and in particular to a manufacturing method of a liquid crystal display device.
  • liquid crystal display Liquid Crystal Display, LCD
  • cathode ray tube Cathode Ray Tube, CRT
  • the liquid crystal display device has many advantages such as thin body, power saving, and no radiation, and has been widely used.
  • liquid crystal display devices which include a liquid crystal panel and a backlight module.
  • the liquid crystal panel consists of a color filter (CF) substrate, a thin film transistor (TFT) array substrate, a liquid crystal (LC) sandwiched between the color filter substrate and the thin film transistor array substrate, and a sealant frame (Sealant) composition.
  • the working principle of the liquid crystal panel is to place liquid crystal molecules between two parallel glass substrates. There are many small vertical and horizontal wires between the two glass substrates. The liquid crystal molecules are controlled to change direction by powering on or not to refract the light of the backlight module. Come out to produce the picture.
  • the liquid crystal panel will also be provided with upper and lower polarizers on both sides of the two substrates.
  • the existing polarizer generally includes a polyvinyl alcohol (PVA) layer with polarization function, two triacetate cellulose (TAC) layers arranged on both sides of the PVA layer, and two TAC layers on the side away from the PVA layer.
  • PVA polyvinyl alcohol
  • TAC triacetate cellulose
  • the protective film and the pressure-sensitive adhesive layer and the release film on the side of the pressure-sensitive adhesive layer away from the PVA layer.
  • the purpose of the present invention is to provide a method for manufacturing a liquid crystal display device, which can simply and effectively realize the high-precision alignment of the upper polarizer and the lower polarizer, improve product yield, and reduce production costs.
  • the present invention first provides a method for manufacturing a liquid crystal display device, which includes the following steps:
  • Step S1 providing an upper polarizing mother board, a lower polarizing mother board and a liquid crystal panel;
  • Step S2 Make a plurality of parallel first identification stripes on the surface of the upper polarized mother board, and make a plurality of parallel second identification stripes on the surface of the lower polarized mother board; when the upper polarized mother board and the lower polarized mother board are preset When the alignment standard of, the first marking stripe is perpendicular to the second marking stripe;
  • Step S3 cutting the upper polarizer mother plate to obtain an upper polarizer, the surface of the upper polarizer is provided with at least one first identification stripe, the lower polarizer mother plate is cut to obtain a lower polarizer, and the surface of the lower polarizer is provided with At least one second identification stripe;
  • Step S4 Attach the upper polarizer and the lower polarizer to both sides of the liquid crystal panel respectively, so that the first identification stripes on the surface of the upper polarizer are perpendicular to the second identification stripes on the surface of the lower polarizer.
  • the first identification stripe is made on the surface of the upper polarizing mother board and the second identification stripe is made on the surface of the lower polarizing mother board by laser etching.
  • the first marking stripe is made on the surface of the upper polarizing mother plate and the second marking stripe is made on the surface of the lower polarizing mother plate by means of inkjet printing.
  • the upper polarizing mother board includes a first polarizing layer, two first protective layers respectively disposed on both sides of the first polarizing layer, and a first protective film respectively disposed on the side of the two first protective layers away from the first polarizing layer And the first adhesive layer;
  • the lower polarizing mother board includes a second polarizing layer, two second protective layers respectively disposed on both sides of the second polarizing layer, and a second protective film respectively disposed on the side of the two second protective layers away from the second polarizing layer And the second glue layer.
  • a first identification stripe is made on the surface of the first protective film away from the first polarizing layer, and a second identification stripe is made on the surface of the second protective film away from the second polarizing layer.
  • the upper polarizing mother board and the lower polarizing mother board have the same size and are rectangular; the first identification stripe is parallel to the long side of the upper polarizing mother board; the second identification stripe is parallel to the wide side of the lower polarizing mother board .
  • the shape of the liquid crystal panel is circular or polygonal.
  • the areas of the upper polarizer and the lower polarizer are both larger than the area of the liquid crystal panel.
  • the manufacturing method of the liquid crystal display device further includes step S5, cutting the upper polarizer and the lower polarizer along the edge of the liquid crystal panel.
  • the specific process of attaching the upper polarizer and the lower polarizer to both sides of the liquid crystal panel is: providing an attachment device, fixing the liquid crystal panel on the attachment device, and using the attachment device to attach
  • the lower polarizer is attached to one side of the liquid crystal panel, the liquid crystal panel is turned over and the liquid crystal panel is fixed on the attachment device, and the upper polarizer is attached to the other side of the liquid crystal panel by the attachment device.
  • the manufacturing method of the liquid crystal display device of the present invention makes a plurality of parallel first identification stripes on the surface of the upper polarizing mother board, and makes a plurality of parallel second identification stripes on the surface of the lower polarizing mother board, and then
  • the upper polarizer mother plate is cut to obtain the upper polarizer, so that the surface of the upper polarizer is provided with at least one first identification stripe
  • the lower polarizer mother plate is cut to obtain the lower polarizer, so that the surface of the lower polarizer is provided with at least one second identification stripe
  • the upper polarizer and the lower polarizer are respectively attached to both sides of the liquid crystal panel, so that the first identification stripe on the surface of the upper polarizer is perpendicular to the second identification stripe on the surface of the lower polarizer, which can be simply and effectively Realize the high-precision alignment of the upper polarizer and the lower polarizer, improve product yield and reduce production costs.
  • FIG. 1 is a flow chart of the manufacturing method of the liquid crystal display device of the present invention.
  • step S1 and step S2 of the manufacturing method of the liquid crystal display device of the present invention are schematic diagrams of step S1 and step S2 of the manufacturing method of the liquid crystal display device of the present invention
  • step S2 is a partial cross-sectional view of the upper polarizing mother plate after step S2 of the manufacturing method of the liquid crystal display device of the present invention is completed;
  • FIG. 5 is a partial cross-sectional view of the lower polarizing mother plate after step S2 of the manufacturing method of the liquid crystal display device of the present invention is completed;
  • FIGS 6 and 7 are schematic diagrams of step S3 of the manufacturing method of the liquid crystal display device of the present invention.
  • step S4 is a schematic diagram of step S4 of the manufacturing method of the liquid crystal display device of the present invention.
  • Fig. 9 is a cross-sectional view taken along the line A-A' in Fig. 8.
  • the present invention provides a manufacturing method of a liquid crystal display device, including the following steps:
  • Step S1 please refer to FIG. 2 and FIG. 3 in combination with FIG. 8 to provide an upper polarizing mother board 10, a lower polarizing mother board 20 and a liquid crystal panel 30.
  • the upper polarizing mother board 10 includes a first polarizing layer 12, two first protective layers 13 respectively disposed on both sides of the first polarizing layer 12, and two first protective layers 13 The first protective film 14 and the first glue layer 15 on the side away from the first polarizing layer 12.
  • the lower polarizing mother board 20 includes a second polarizing layer 22, two second protective layers 23 respectively disposed on both sides of the second polarizing layer 22, and two second protective layers 23 respectively disposed far away from the The second protective film 24 and the second glue layer 25 on one side of the two polarizing layer 22.
  • the material of the first polarizing layer 12 and the second polarizing layer 22 is PVA
  • the material of the first protective layer 13 and the second protective layer 23 is TAC
  • the materials of the first adhesive layer 15 and the second adhesive layer 25 The material is pressure sensitive adhesive.
  • the upper polarizing mother board 10 and the lower polarizing mother board 20 have the same size and are rectangular.
  • the liquid crystal panel 30 is a special-shaped liquid crystal panel, and its shape may be a circle or a polygon.
  • Step S2 referring to FIGS. 2 and 3, a plurality of parallel first identification stripes 19 are formed on the surface of the upper polarizing mother plate 10, and a plurality of parallel second identification stripes 29 are formed on the surface of the lower polarizing mother plate 20.
  • the extension directions of the first identification stripe 19 and the second identification stripe 29 satisfy: when the upper polarizing mother board 10 and the lower polarizing mother board 20 are aligned according to a preset alignment standard, the first identification stripes 19 and the second Two logo stripes 29 are vertical.
  • the extension directions of the first identification stripe 19 and the second identification stripe 29 meet:
  • the first identification stripe 19 and the second identification stripe 29 are perpendicular to each other.
  • the first identification stripe 19 can be made on the surface of the upper polarizing mother board 10 and the second identification stripe 29 can be made on the surface of the lower polarizing mother board 20 by laser etching, or inkjet printing can be used.
  • the first identification stripe 19 is made on the surface of the upper polarizing mother plate 10 and the second identification stripe 29 is made on the surface of the lower polarizing mother plate 20 in the same manner.
  • the density of the first identification stripes 19 on the surface of the upper polarized mother board 10 is set according to the area of the liquid crystal panel 30, so that the upper polarized mother board 10 is processed according to the size of the liquid crystal panel 30 in the subsequent manufacturing process.
  • the surface of the lower polarizer 21 obtained by cutting the lower polarizing mother board 20 has at least one second identification stripe 29 on the surface.
  • a first identification stripe 19 is formed on the surface of the first protective film 14 away from the first polarizing layer 12.
  • a second identification stripe 29 is formed on the surface of the second protective film 24 away from the second polarizing layer 22.
  • the first identification stripe 19 is parallel to the long side of the upper polarizing motherboard 10
  • the second identification stripe 29 is parallel to the wide side of the lower polarizing motherboard 20.
  • Step S3 cutting the upper polarizing mother board 10 to obtain the upper polarizing film 11 as shown in FIG. 6, the surface of the upper polarizing film 11 is provided with at least one first identification stripe 19, and cutting the lower polarizing mother board 20 to obtain In the lower polarizer 21 shown in FIG. 7, the surface of the lower polarizer 21 is provided with at least one second identification stripe 29.
  • the area of the upper polarizer 11 and the area of the lower polarizer 21 are selected according to the area of the liquid crystal panel 30.
  • the areas of the upper polarizer 11 and the lower polarizer 21 are larger than the area of the liquid crystal panel 30.
  • Step S4 referring to Figures 9 and 9, the upper polarizer 11 and the lower polarizer 21 are attached to both sides of the liquid crystal panel 30, so that the first marking stripe 19 on the surface of the upper polarizer 11 and the lower polarizer
  • the second identification stripes 29 on the surface 21 are perpendicular to each other.
  • step S4 the specific process of attaching the upper polarizer 11 and the lower polarizer 21 to both sides of the liquid crystal panel 30 respectively is: providing an attaching device, and fixing the liquid crystal panel 30 on the attaching device Attach the lower polarizer 21 to one side of the liquid crystal panel 30 by using an attachment device, flip the liquid crystal panel 30 and fix the liquid crystal panel 30 on the attachment device, and use the attachment device to attach the upper polarizer 11 Attached to the other side of the liquid crystal panel 30.
  • the manufacturing method of the liquid crystal display device further includes step S5, cutting the upper polarizer 11 and the lower polarizer 21 along the edge of the liquid crystal panel 30.
  • the manufacturing method of the liquid crystal display device of the present invention makes a plurality of parallel first identification stripes 19 on the surface of the upper polarizing mother board 10, and makes a plurality of parallel second identification stripes 29 on the surface of the lower polarizing mother board 20.
  • the first identification stripe 19 is perpendicular to the second identification stripe 29, and then the upper polarizing mother board 10 is cut to obtain the upper Polarizer 11 such that the surface of the upper polarizer 11 is provided with at least one first identification stripe 19, the lower polarizing mother board 20 is cut to obtain the lower polarizer 21, so that the surface of the lower polarizer 21 is provided with at least one second identification stripe 29, Subsequently, the upper polarizer 11 and the lower polarizer 21 are attached to both sides of the liquid crystal panel 30, respectively, according to the first identification stripe 19 on the surface of the upper polarizer 11 and the second identification stripe 29 on the surface of the lower polarizer 21 Adjust the position of the upper polarizer 11 and the lower polarizer 21, and finally make the first identification stripe 19 on the surface of the upper polarizer 11 and the second identification stripe 29 on the surface of the lower polarizer 21 perpendicular to
  • the manufacturing method of the liquid crystal display device of the present invention makes a plurality of parallel first identification stripes on the surface of the upper polarizing mother board, and makes a plurality of parallel second identification stripes on the surface of the lower polarizing mother board, and then aligns them.
  • the upper polarizer is obtained by cutting the polarizing mother plate so that the surface of the upper polarizer is provided with at least one first identification stripe, and the lower polarizing mother plate is cut to obtain the lower polarizer, so that the surface of the lower polarizer is provided with at least one second identification stripe, Subsequently, the upper polarizer and the lower polarizer are respectively attached to both sides of the liquid crystal panel, so that the first identification stripe on the surface of the upper polarizer is perpendicular to the second identification stripe on the surface of the lower polarizer, which can be implemented simply and effectively
  • the high-precision alignment of the upper polarizer and the lower polarizer improves product yield and reduces production costs.

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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)
  • Polarising Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

本发明提供一种液晶显示装置的制作方法。本发明的液晶显示装置的制作方法在上偏光母板的表面制作多条平行的第一标识条纹，在下偏光母板的表面制作多条平行的第二标识条纹，而后对上偏光母板进行切割得到上偏光片，使得上偏光片表面设有至少一条第一标识条纹，对下偏光母板进行切割得到下偏光片，使得下偏光片表面设有至少一条第二标识条纹，随后，将所述上偏光片及下偏光片分别贴附于液晶面板的两侧，使得上偏光片表面的第一标识条纹与下偏光片表面的第二标识条纹相垂直，能够简单有效地实现上偏光片与下偏光片的高精度对位，提升产品良率，降低生产成本。

Description

液晶显示装置的制作方法 技术领域
本发明涉及显示技术领域，尤其涉及一种液晶显示装置的制作方法。
 背景技术
在显示技术领域，液晶显示装置（Liquid Crystal Display，LCD）等平板显示装置已经逐步取代阴极射线管（Cathode Ray Tube，CRT）显示装置。液晶显示装置具有机身薄、省电、无辐射等众多优点，得到了广泛的应用。
现有市场上的液晶显示装置大部分为背光型液晶显示装置，其包括液晶面板及背光模组（backlight module）。通常液晶面板由彩膜（Color Filter，CF）基板、薄膜晶体管（Thin Film Transistor，TFT）阵列基板、夹于彩膜基板与薄膜晶体管阵列基板之间的液晶（Liquid Crystal，LC）及密封胶框（Sealant）组成。液晶面板的工作原理是在两片平行的玻璃基板当中放置液晶分子，两片玻璃基板中间有许多垂直和水平的细小电线，通过通电与否来控制液晶分子改变方向，将背光模组的光线折射出来产生画面。
液晶面板还会在两片基板两侧分别设置上下偏光片，当光线通过下偏光片变为偏振光，由于液晶分子的旋光性，利用电压调整光线的角度，而使得通过上偏光片的光线角度和亮度受到控制。现有的偏光片一般包括具有偏光功能的聚乙烯醇（PVA）层、设于PVA层两侧的两个三醋酸纤维素（TAC）层、分别设于两个TAC层远离PVA层一侧的保护膜及压敏胶层以及设于压敏胶层远离PVA层一侧的离型膜，当需要将偏光片贴附在液晶面板表面时将离型膜撕下，利用压敏胶层将偏光片与液晶面板表面贴附。
随着显示技术的不断发展，可穿戴电子产品越来越受到青睐，此类电子产品的多是异形的显示装置，例如圆形或多边形，相应的，该类电子产品中的液晶面板也是异形的显示面板，这给在液晶面板的两侧设置上下偏光片带来了难题，容易出现上下两个偏光片对位精度不佳的问题，使得产品的良率下降。
 技术问题
本发明的目的在于提供一种液晶显示装置的制作方法，能够简单有效地实现上偏光片与下偏光片的高精度对位，提升产品良率，降低生产成本。
 技术解决方案
为实现上述目的，本发明首先提供一种液晶显示装置的制作方法，包括如下步骤：
步骤S1、提供上偏光母板、下偏光母板及液晶面板；
步骤S2、在上偏光母板的表面制作多条平行的第一标识条纹，在下偏光母板的表面制作多条平行的第二标识条纹；当将上偏光母板与下偏光母板依据预设的对位标准进行对位时，第一标识条纹与第二标识条纹垂直；
步骤S3、对上偏光母板进行切割得到上偏光片，所述上偏光片表面设有至少一条第一标识条纹，对下偏光母板进行切割得到下偏光片，所述下偏光片表面设有至少一条第二标识条纹；
步骤S4、将所述上偏光片及下偏光片分别贴附于液晶面板的两侧，使得上偏光片表面的第一标识条纹与下偏光片表面的第二标识条纹相垂直。
所述步骤S2中，采用激光蚀刻的方式在上偏光母板的表面制作第一标识条纹及在下偏光母板的表面制作第二标识条纹。
所述步骤S2中，采用喷墨打印的方式在上偏光母板的表面制作第一标识条纹及在下偏光母板的表面制作第二标识条纹。
所述上偏光母板包括第一偏光层、分别设于第一偏光层两侧的两个第一保护层以及分别设于两个第一保护层远离第一偏光层一侧的第一保护膜及第一胶材层；
所述下偏光母板包括第二偏光层、分别设于第二偏光层两侧的两个第二保护层以及分别设于两个第二保护层远离第二偏光层一侧的第二保护膜及第二胶材层。
所述步骤S2中，在第一保护膜远离第一偏光层的一侧表面制作第一标识条纹，在第二保护膜远离第二偏光层的一侧表面制作第二标识条纹。
所述上偏光母板及下偏光母板的尺寸相同且均为长方形；所述第一标识条纹与上偏光母板的长边平行；所述第二标识条纹与下偏光母板的宽边平行。
所述液晶面板的形状为圆形或多边形。
所述上偏光片及下偏光片的面积均大于液晶面板的面积。
所述液晶显示装置的制作方法还包括步骤S5、沿液晶面板的边缘对上偏光片及下偏光片进行切割。
所述步骤S4将所述上偏光片及下偏光片分别贴附于液晶面板的两侧的具体过程为：提供贴附设备，将液晶面板固定在所述贴附设备上，利用贴附设备将下偏光片贴附于液晶面板的一侧，对液晶面板进行翻转并将液晶面板固定在所述贴附设备上，利用贴附设备将上偏光片贴附于液晶面板的另一侧。
 有益效果
本发明的有益效果：本发明的液晶显示装置的制作方法在上偏光母板的表面制作多条平行的第一标识条纹，在下偏光母板的表面制作多条平行的第二标识条纹，而后对上偏光母板进行切割得到上偏光片，使得上偏光片表面设有至少一条第一标识条纹，对下偏光母板进行切割得到下偏光片，使得下偏光片表面设有至少一条第二标识条纹，随后，将所述上偏光片及下偏光片分别贴附于液晶面板的两侧，使得上偏光片表面的第一标识条纹与下偏光片表面的第二标识条纹相垂直，能够简单有效地实现上偏光片与下偏光片的高精度对位，提升产品良率，降低生产成本。
 附图说明
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图中，
图1为本发明的液晶显示装置的制作方法的流程图；
图2及图3为本发明的液晶显示装置的制作方法的步骤S1及步骤S2的示意图；
图4为本发明的液晶显示装置的制作方法的步骤S2结束后上偏光母板的局部剖视图；
图5为本发明的液晶显示装置的制作方法的步骤S2结束后下偏光母板的局部剖视图；
图6及图7为本发明的液晶显示装置的制作方法的步骤S3的示意图；
图8为本发明的液晶显示装置的制作方法的步骤S4的示意图；
图9为沿图8中的A-A’线的剖视图。
 本发明的实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图1，本发明提供一种液晶显示装置的制作方法，包括如下步骤：
步骤S1、请参阅图2及图3，并结合图8，提供上偏光母板10、下偏光母板20及液晶面板30。
具体地，请参阅图4，所述上偏光母板10包括第一偏光层12、分别设于第一偏光层12两侧的两个第一保护层13以及分别设于两个第一保护层13远离第一偏光层12一侧的第一保护膜14及第一胶材层15。请参阅图5，所述下偏光母板20包括第二偏光层22、分别设于第二偏光层22两侧的两个第二保护层23以及分别设于两个第二保护层23远离第二偏光层22一侧的第二保护膜24及第二胶材层25。
进一步地，第一偏光层12及第二偏光层22的材料为PVA，第一保护层13及第二保护层23的材料为TAC，第一胶材层15及第二胶材层25的的材料为压敏胶。
优选地，请参阅图2及图3，所述上偏光母板10及下偏光母板20的尺寸相同且均为长方形。
具体地，所述液晶面板30为异形液晶面板，其形状可为圆形或多边形。
步骤S2、请参阅图2及图3，在上偏光母板10的表面制作多条平行的第一标识条纹19，在下偏光母板20的表面制作多条平行的第二标识条纹29。所述第一标识条纹19及第二标识条纹29的延伸方向满足：当将上偏光母板10与下偏光母板20依据预设的对位标准进行对位时，第一标识条纹19与第二标识条纹29垂直。例如，若预设的对位标准是上偏光母板10的偏光轴与下偏光母板20的偏光轴垂直，则所述第一标识条纹19及第二标识条纹29的延伸方向满足：当使得上偏光母板10的偏光轴与下偏光母板20的偏光轴相垂直将两者对位时，第一标识条纹19与第二标识条纹29垂直。
具体地，所述步骤S2中，可以采用激光蚀刻的方式在上偏光母板10的表面制作第一标识条纹19及在下偏光母板20的表面制作第二标识条纹29，也可以采用喷墨打印的方式在上偏光母板10的表面制作第一标识条纹19及在下偏光母板20的表面制作第二标识条纹29。
具体地，所述步骤S2中，上偏光母板10表面的第一标识条纹19的密集程度依据液晶面板30的面积进行设置，使得后续制程中依据液晶面板30的尺寸对上偏光母板10进行切割得到的上偏光片11表面至少有一条第一标识条纹19，下偏光母板20表面的第二标识条纹29的密集程度依据液晶面板30的面积进行设置，使得后续制程中依据液晶面板30的尺寸对下偏光母板20进行切割得到的下偏光片21表面至少有一条第二标识条纹29。
具体地，请参阅图4，所述步骤S2中，在第一保护膜14远离第一偏光层12的一侧表面制作第一标识条纹19，请参阅图5，所述步骤S2中，在第二保护膜24远离第二偏光层22的一侧表面制作第二标识条纹29。
优选地，请参阅图2，所述第一标识条纹19与上偏光母板10的长边平行，请参阅图3，所述第二标识条纹29与下偏光母板20的宽边平行。
步骤S3、对上偏光母板10进行切割得到如图6所示的上偏光片11，所述上偏光片11表面设有至少一条第一标识条纹19，对下偏光母板20进行切割得到如图7所示的下偏光片21，所述下偏光片21表面设有至少一条第二标识条纹29。
具体地，所述上偏光片11的面积及下偏光片21的面积依据液晶面板30的面积进行选取，优选为所述上偏光片11及下偏光片21的面积均大于液晶面板30的面积。
步骤S4、请参阅图9及图9，将所述上偏光片11及下偏光片21分别贴附于液晶面板30的两侧，使得上偏光片11表面的第一标识条纹19与下偏光片21表面的第二标识条纹29相垂直。
具体地，所述步骤S4将所述上偏光片11及下偏光片21分别贴附于液晶面板30的两侧的具体过程为：提供贴附设备，将液晶面板30固定在所述贴附设备上，利用贴附设备将下偏光片21贴附于液晶面板30的一侧，对液晶面板30进行翻转并将液晶面板30固定在所述贴附设备上，利用贴附设备将上偏光片11贴附于液晶面板30的另一侧。
具体地，所述的液晶显示装置的制作方法还包括步骤S5、沿液晶面板30的边缘对上偏光片11及下偏光片21进行切割。
需要说明的是，本发明的液晶显示装置的制作方法在上偏光母板10的表面制作多条平行的第一标识条纹19，在下偏光母板20的表面制作多条平行的第二标识条纹29，当将上偏光母板10与下偏光母板20依据预设的对位标准进行对位时，第一标识条纹19与第二标识条纹29垂直，而后对上偏光母板10进行切割得到上偏光片11，使得上偏光片11表面设有至少一条第一标识条纹19，对下偏光母板20进行切割得到下偏光片21，使得下偏光片21表面设有至少一条第二标识条纹29，随后，将所述上偏光片11及下偏光片21分别贴附于液晶面板30的两侧，依据上偏光片11表面的第一标识条纹19与下偏光片21表面的第二标识条纹29之间的角度对上偏光片11及下偏光片21的位置进行调整，最终使得上偏光片11表面的第一标识条纹19与下偏光片21表面的第二标识条纹29相垂直，此时上偏光片11与下偏光片21对位精确，能够简单有效地实现上偏光片11与下偏光片21的高精度对位，提升产品良率，降低生产成本。
综上所述，本发明的液晶显示装置的制作方法在上偏光母板的表面制作多条平行的第一标识条纹，在下偏光母板的表面制作多条平行的第二标识条纹，而后对上偏光母板进行切割得到上偏光片，使得上偏光片表面设有至少一条第一标识条纹，对下偏光母板进行切割得到下偏光片，使得下偏光片表面设有至少一条第二标识条纹，随后，将所述上偏光片及下偏光片分别贴附于液晶面板的两侧，使得上偏光片表面的第一标识条纹与下偏光片表面的第二标识条纹相垂直，能够简单有效地实现上偏光片与下偏光片的高精度对位，提升产品良率，降低生产成本。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (10)

  1. 一种液晶显示装置的制作方法，包括如下步骤：
    步骤S1、提供上偏光母板、下偏光母板及液晶面板；
    步骤S2、在上偏光母板的表面制作多条平行的第一标识条纹，在下偏光母板的表面制作多条平行的第二标识条纹；当将上偏光母板与下偏光母板依据预设的对位标准进行对位时，第一标识条纹与第二标识条纹垂直；
    步骤S3、对上偏光母板进行切割得到上偏光片，所述上偏光片表面设有至少一条第一标识条纹，对下偏光母板进行切割得到下偏光片，所述下偏光片表面设有至少一条第二标识条纹；
    步骤S4、将所述上偏光片及下偏光片分别贴附于液晶面板的两侧，使得上偏光片表面的第一标识条纹与下偏光片表面的第二标识条纹相垂直。
  2. 如权利要求1所述的液晶显示装置的制作方法，其中，所述步骤S2中，采用激光蚀刻的方式在上偏光母板的表面制作第一标识条纹及在下偏光母板的表面制作第二标识条纹。
  3. 如权利要求1所述的液晶显示装置的制作方法，其中，所述步骤S2中，采用喷墨打印的方式在上偏光母板的表面制作第一标识条纹及在下偏光母板的表面制作第二标识条纹。
  4. 如权利要求1所述的液晶显示装置的制作方法，其中，所述上偏光母板包括第一偏光层、分别设于第一偏光层两侧的两个第一保护层以及分别设于两个第一保护层远离第一偏光层一侧的第一保护膜及第一胶材层；
    所述下偏光母板包括第二偏光层、分别设于第二偏光层两侧的两个第二保护层以及分别设于两个第二保护层远离第二偏光层一侧的第二保护膜及第二胶材层。
  5. 如权利要求4所述的液晶显示装置的制作方法，其中，所述步骤S2中，在第一保护膜远离第一偏光层的一侧表面制作第一标识条纹，在第二保护膜远离第二偏光层的一侧表面制作第二标识条纹。
  6. 如权利要求1所述的液晶显示装置的制作方法，其中，所述上偏光母板及下偏光母板的尺寸相同且均为长方形；所述第一标识条纹与上偏光母板的长边平行；所述第二标识条纹与下偏光母板的宽边平行。
  7. 如权利要求1所述的液晶显示装置的制作方法，其中，所述液晶面板的形状为圆形或多边形。
  8. 如权利要求1所述的液晶显示装置的制作方法，其中，所述上偏光片及下偏光片的面积均大于液晶面板的面积。
  9. 如权利要求8所述的液晶显示装置的制作方法，还包括步骤S5、沿液晶面板的边缘对上偏光片及下偏光片进行切割。
  10. 如权利要求1所述的液晶显示装置的制作方法，其中，所述步骤S4将所述上偏光片及下偏光片分别贴附于液晶面板的两侧的具体过程为：提供贴附设备，将液晶面板固定在所述贴附设备上，利用贴附设备将下偏光片贴附于液晶面板的一侧，对液晶面板进行翻转并将液晶面板固定在所述贴附设备上，利用贴附设备将上偏光片贴附于液晶面板的另一侧。
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