WO2018205527A1 - 偏光片及其制作方法、显示面板、显示设备 - Google Patents

偏光片及其制作方法、显示面板、显示设备 Download PDF

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Publication number
WO2018205527A1
WO2018205527A1 PCT/CN2017/110376 CN2017110376W WO2018205527A1 WO 2018205527 A1 WO2018205527 A1 WO 2018205527A1 CN 2017110376 W CN2017110376 W CN 2017110376W WO 2018205527 A1 WO2018205527 A1 WO 2018205527A1
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Prior art keywords
polarizing
display panel
layer
unit
polarizer
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PCT/CN2017/110376
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English (en)
French (fr)
Inventor
刘智
Original Assignee
京东方科技集团股份有限公司
合肥京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 合肥京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US16/068,438 priority Critical patent/US20210165272A1/en
Publication of WO2018205527A1 publication Critical patent/WO2018205527A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/14—Protective coatings, e.g. hard coatings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • 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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
    • G02B5/305—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/50—Protective arrangements

Definitions

  • Embodiments of the present disclosure relate to a polarizer and a method of fabricating the same, a display panel, and a display device.
  • the polarizer is called a polarizer and can control the polarization direction of a specific beam.
  • the polarizer When the natural light passes through the polarizer, the light whose vibration direction is perpendicular to the transmission axis of the polarizer is absorbed, and only the polarized light whose vibration direction is parallel to the transmission axis of the polarizer is transmitted.
  • the surface of the liquid crystal display panel usually has a polarizer.
  • the liquid crystal display panel includes two polarizers disposed on two sides of the substrate, wherein the lower polarizer is used to convert the light beam generated by the backlight into polarized light, and the upper polarizer is used for the upper polarizer.
  • the polarized light modulated by the liquid crystal is analyzed to produce a contrast between light and dark, thereby generating a display image.
  • At least one embodiment of the present disclosure provides a polarizer comprising: a polarizing layer comprising a plurality of independent polarizing units.
  • the polarizer is used for a display panel, the display panel includes a plurality of pixel units, and the length of the polarizing unit is m times the length of the pixel unit, and the polarized light
  • the width of the cell is n times the width of the pixel unit; wherein m and n are both positive integers, and m and n are each no greater than 15.
  • m and n are both 1, and the plurality of polarizing units are used for one-to-one correspondence of a plurality of the pixel units covering the display panel.
  • the polarizing unit has a width of not more than 500 ⁇ m and a length of not more than 1500 ⁇ m.
  • the polarizer according to at least one embodiment of the present disclosure further includes: a protective layer; the polarizing layer is disposed on the first surface of the protective layer.
  • the polarizer according to at least one embodiment of the present disclosure further includes: a connecting layer disposed on the second surface of the protective layer.
  • the polarizer provided in at least one embodiment of the present disclosure further includes: a release layer disposed at the On the surface of the connecting layer remote from the protective layer.
  • the polarizer according to at least one embodiment of the present disclosure further includes an anti-scratch layer disposed on a surface of the polarizing layer away from the protective layer.
  • the polarizing layer is made of polyethylene.
  • the protective layer is made of cellulose triacetate.
  • the connecting layer is made of a pressure sensitive adhesive
  • the release layer is a release film
  • the scratch prevention layer is a scratch resistant film.
  • At least one embodiment of the present disclosure provides a display panel including a panel body and any one of the polarizers, and the polarizer is disposed on a first surface of the panel body.
  • an edge of the polarizing unit corresponds to an outer edge of a black matrix region of a pixel unit of the panel body covered by the polarizing unit.
  • the display panel includes a plurality of the pixel units, and one of the polarizing units correspondingly covers a plurality of the pixel units.
  • the display panel includes a plurality of the pixel units, and the plurality of polarizing units respectively cover a plurality of the pixel units, and the plurality of the polarizing units
  • the edges are one-to-one corresponding to the outer edges of the black matrix regions of the plurality of pixel units.
  • At least one embodiment of the present disclosure provides a display device including the display panel of any of the above.
  • At least one embodiment of the present disclosure provides a method of fabricating a polarizer, comprising: cutting a polarizing layer to form a plurality of independent polarizing units.
  • the polarizer is used for a display panel, the display panel includes a plurality of pixel units, and the length of the polarizing unit is m times of a pixel unit.
  • the length, the width of the polarizing unit is n times the width of the pixel unit; wherein m and n are both positive integers, and m and n are not greater than 15.
  • a polarizing layer is formed on the protective layer, and then the polarizing layer formed on the protective layer is cut to form a plurality of independent polarizing units.
  • the polarizing unit is in one-to-one correspondence with the pixel unit.
  • FIG. 1 is a schematic bottom view of a polarizer according to an embodiment of the present disclosure
  • FIG. 2 is a front view showing the structure of the polarizing layer of FIG. 1;
  • FIG. 3 is a schematic structural diagram of a pixel unit according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural view of a polarizing unit attached to a pixel unit according to an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of a polarizing unit attached to a pixel unit according to another embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of a display panel according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of a display device according to an embodiment of the present disclosure.
  • the polarizer generally includes a structure such as a polarizing layer, a protective layer, a pressure sensitive adhesive, a release film, and the like.
  • the polarization layer is a polarizing layer.
  • a protective layer having high light transmittance, good water resistance and certain mechanical strength may be laminated on one side or both sides of the polarizing layer. Take protection.
  • the inventors of the present application found in the study that the polarizer tends to shrink in the direction in which the polarizing layer extends (absorption axis direction) in a high temperature environment. For example, when placed at a high temperature of 80° for 500 hours, the shrinkage of the polarizer is, for example, ⁇ 5%. If the size of the polarizer is 100 mm, the amount of contraction of the polarizer can reach 5 mm, for example, in order to prevent the polarizer from shrinking to the visible area of the display panel, it is necessary to make the single side frame of the display panel 2.5 mm or more, so that a large-sized display panel, for example, The large-size liquid crystal display panel cannot realize a narrow bezel design of 2 mm or less.
  • the shrinkage ratio of the polarizer can be lowered to some extent (for example, by about 2%) by lowering the thickness of the polarizing layer.
  • the size of the liquid crystal display panel is 10 inches or more, the size of the polarizer is close to 200 mm. Even with the thin polarizing layer, the amount of polarization of the polarizer is still large, and the liquid crystal display panel cannot achieve a narrow frame of 2 mm or less.
  • the polarizer includes a polarizing layer 2, and the polarizing layer 2 includes a plurality of independent polarizing units 3.
  • the polarizer can be used for a display panel comprising a plurality of pixel units, and the length of the polarizing unit 3 is m times the length of the pixel unit, and the width of the polarizing unit 3 is n times the width of the pixel unit; , m and n are both positive integers, and m and n are both no more than 15.
  • the display panel includes pixel units of a plurality of colors, for example, including three types of pixel units of red, green, and blue, one of the three pixel units of red, green, and blue, and one polarizing unit 3 may correspond to a group or The arrangement of a plurality of sets of pixel units makes the division of the polarizing unit 3 clearer, and also makes the polarizing unit 3 more uniformly distributed in subsequent pixel units of different colors to reduce the influence on the display effect.
  • the polarizer may further include a protective layer 1 disposed on the first surface 101 of the protective layer 1 and divided into a plurality of independent layers on the protective layer 1.
  • the polarizing unit 3, and the length of the polarizing unit 3 is m times the length of the pixel unit 7, polarized light
  • the width of the unit 3 is n times the width of the pixel unit 7.
  • the polarizing layer 2 included in the polarizer provided by the embodiment of the present disclosure is divided into a plurality of independent polarizing units 3, and the amount of shrinkage between the polarizing units 3 does not affect each other, and the shrinkage amount of the polarizing layer 2 of the overall structure is equally divided.
  • the amount of shrinkage of the polarizing layer 2 is divided into a plurality of portions, and the amount of shrinkage of each of the polarizing units 3 is small.
  • the edge of the polarizing unit 3 may correspond to, for example, a black matrix (BM) light shielding region of the pixel unit 7. 9.
  • the polarizing unit 3 is contracted so as not to be detached from the black matrix region 9 of the pixel unit 7 and retracted onto the display region 8 of the pixel unit 7, so that the display panel is not normally displayed.
  • BM black matrix
  • the polarizer provided by the embodiment of the present disclosure can be applied to any display panel using a polarizer, such as a liquid crystal display panel, an OLED display panel, or the like.
  • a polarizer such as a liquid crystal display panel, an OLED display panel, or the like.
  • the amount of shrinkage of the polarizing unit 3 located at the frame of the liquid crystal display panel can be greatly reduced. Therefore, the frame of the liquid crystal display panel can be formed into a narrow frame of, for example, 2 mm or less.
  • the edge of the polarizing unit 3 falls on the black matrix region 9 of the pixel unit 7 covered by the polarizing unit 3, for example, in the present application.
  • the width of the polarizing unit 3 is n times the width of the pixel unit 7, and the length of the polarizing unit 3 is m times the length of the pixel unit 7.
  • the black matrix area 9 shared between the adjacent pixel units 7 on the display panel can be allocated to the adjacent pixel unit 7 as a specific case, for example, as a separate black matrix area 9 of the pixel unit 7. It is equally divided, and may be non-uniform, for example, it may be determined according to the edge position of the correspondingly disposed polarizing unit 3.
  • m and n are both 1, and the plurality of polarizing units 3 can cover the plurality of pixel units 7 of the display panel one by one, so that each polarizing unit is The amount of shrinkage is small when subsequent shrinkage may occur.
  • one polarizing unit 3 may cover a plurality of pixel units 7 at the same time, and FIG. 5 shows a case where one polarizing unit 3 covers three pixel units 7.
  • the cutting position of the time polarizing unit 3 can be obtained, for example, according to calculation, and the disclosure is not described herein again.
  • the arrangement of one polarizing unit corresponding to the plurality of pixel units can reduce the number of times of cutting the polarizing layer during the preparation process, thereby simplifying the manufacturing process.
  • the width of the polarizing unit 3 is, for example, not more than 500 ⁇ m, and the length is, for example, not more than 1500 ⁇ m, so that the edge of the polarizing unit 3 is not retracted into the display region 8 of the pixel unit 7.
  • the polarizer may further include a connection layer 4, and the connection layer 4 is provided. It is placed on the second surface 102 of the protective layer 1 for bonding and fixing when applied to the display panel.
  • the polarizer may further include a release layer 5 disposed on the surface 401 of the connection layer 4 away from the protective layer 1 , for example, the release layer may be removed during use. 5 is thus bonded and fixed by the connecting layer 4.
  • the polarizer may further include an anti-scratch layer 6 disposed on the surface 201 of the polarizing layer 2 away from the protective layer 1 to prevent scratching of the polarizing layer during transportation and installation. 2 is away from the surface of the protective layer 1.
  • the material of the protective layer 1 may be, for example, cellulose triacetate or the like.
  • the material of the polarizing layer 2 may be polyethylene or the like.
  • the material of the connecting layer 4 may be, for example, a pressure sensitive adhesive.
  • the release layer 5 may be, for example, a release film or an equivalent material thereof, and the scratch prevention layer 6 may be, for example, a scratch-resistant film or an equivalent material thereof.
  • the present embodiment provides a display panel.
  • the display panel includes a panel body 10 and any polarizer 20 provided in the embodiment of the present disclosure.
  • the polarizer 20 is disposed on the first board surface 11 of the panel body 10 . .
  • the edge of the polarizing unit 3 of the polarizer 20 corresponds to, for example, the outer edge of the black matrix region 9 of the pixel unit 7 of the panel body 10 covered by the polarizing unit 3.
  • the outer edge of the black matrix region 9 of the pixel unit 7 covered by the pixel unit 7 may be determined according to the edge of the polarizing unit 3, for example, may be the center position of the black matrix region 9 between the adjacent pixel units 7, or may be It is a non-central location.
  • the black matrix regions 9 of the adjacent pixel units 7 can be connected, for example, together, and can be fabricated together during the fabrication process.
  • the display panel may include a plurality of pixel units 7 , and the plurality of polarizing units 3 respectively correspond to the plurality of pixel units 7 , and the edges of the plurality of polarizing units 3 may be located in the pixel unit 7 for example.
  • the outer edge of the black matrix region 9 is used to better prevent the edge of the polarizing unit 3 from being retracted into the display region 8 of the pixel unit 7, thereby giving the display panel a better display effect.
  • the size of the single pixel unit 7 of the display panel may be, for example, between 16 and 100 ⁇ m.
  • the polarizing layer 2 may be cut according to the size of the pixel unit 7 or a multiple of its size.
  • the pixel unit 7 has a width of 100 ⁇ m and a length of 300 ⁇ m, for example, polarized light.
  • the layer 2 is cut into the polarizing unit 3 in accordance with the size of the pixel unit 7, that is, in a width of 100 ⁇ m and a length of 300 ⁇ m.
  • the size of the obtained polarizing unit 3 was 100 ⁇ m in width and 300 ⁇ m in length, and the amount of high-temperature shrinkage was 3%, and the amount of high-temperature shrinkage was 3 ⁇ m in the width direction and 9 ⁇ m in the longitudinal direction.
  • the width of the black matrix region 9 on the left, right, and upper sides of the pixel unit 7 is ⁇ 2.5 ⁇ m, so the width of the left, right, and upper black matrix regions 9 between adjacent pixel units 7 is ⁇ 5 ⁇ m, and the polarizer is The amount of contraction in the width direction is 3 ⁇ m, which is less than 5 ⁇ m; in addition, the width of the black matrix region 9 on the lower side of the adjacent pixel unit 7 is ⁇ 5 ⁇ m, so the width of the black matrix region 9 on the lower side between adjacent pixel units 7 is ⁇ 10 ⁇ m, and The amount of contraction of the polarizer in the longitudinal direction is 9 ⁇ m and less than 10 ⁇ m, so that the polarizing unit 3 does not shrink to the visible region of the pixel unit 7 at a high temperature, so that the display effect of the display panel is not affected (see FIG. 4).
  • the cutting size of the polarizing unit 3 is, for example, in the order of ⁇ m, for example, high-definition cutting precision (for example, nano-cutting) can be used; in addition, for example, the polarizing plate can be bonded to the glass substrate of the display panel using a high-precision device.
  • the edge position of the polarizing unit 3 corresponds to the center of the black matrix region 9 (the center of the black matrix region 9 between the adjacent pixel units 7).
  • the size of the pixel unit 7 may not be unique.
  • the size of the pixel unit on the display panel may be the same or different.
  • the display panel of the present embodiment can be, for example, a liquid crystal display panel, an OLED display panel, or the like.
  • the amount of shrinkage of the polarizing unit 3 located at the frame of the liquid crystal display panel can be greatly reduced, and thus the liquid crystal display panel is
  • the border can be made into a narrow border of, for example, 2 mm or less.
  • the present embodiment provides a display device.
  • the display device 30 includes any of the display panels 40 provided by the embodiments of the present disclosure.
  • the display device 30 provided in this embodiment may be, for example, a liquid crystal display device, an OLED display device, etc., and the display device 30 has all the advantages of the display panel 40, and details are not described herein again.
  • the embodiment provides a method for fabricating a polarizer, which comprises cutting a polarizing layer to form a plurality of independent polarizing units.
  • the polarizer can be used for a display panel, the display panel includes a plurality of pixel units, and the length of the polarizing unit is m times the length of the pixel unit, and the width of the polarizing unit is n times the width of the pixel unit; wherein, m and n is a positive integer, and m and n are both no more than 15.
  • the polarizing unit can be cut in one-to-one correspondence with the pixel unit, for example, so that each of the polarizing units has a small amount of contraction when the contraction may be subsequently generated; or, for example, one polarizing unit can be combined with a plurality of pixel units.
  • the cutting is performed correspondingly, thereby reducing the number of times the polarizing unit is cut and simplifying the preparation process.
  • the method for fabricating the polarizer may further include: forming a protective layer, forming the polarizing layer on the protective layer, and then cutting the polarizing layer disposed on the protective layer to form a plurality of independent polarizing units, and the length of the polarizing unit
  • the length of the pixel unit of m times, the width of the polarizing unit is n times the width of the pixel unit.
  • the polarizer made by the method for fabricating the polarizer provided by the embodiment of the present disclosure is divided into a plurality of independent polarizing units 3, for example, with reference to FIGS. 1-4, and the amount of contraction between the polarizing units 3 is not mutually Affecting and equally dividing the contraction amount of the polarizing layer 2 of the overall structure, so that the contraction amount of the polarizing layer 2 is divided into a plurality of portions, and the contraction amount of each of the polarizing units 3 is small, and the polarizing plate is applied to the display panel when the polarizing plate is applied to the display panel
  • the edge of 3 may correspond to the black matrix region 9 of the pixel unit 7, and the polarizing unit 3 may be retracted onto the display region 8 of the pixel unit 7 without being separated from the black matrix region 9 of the pixel unit 7 so as not to affect the display.
  • the panel is displayed normally.
  • the length of the polarizing unit is m times the length of the pixel unit and the length thereof may be, for example, not more than 1500 ⁇ m
  • the width of the polarizing unit is The width of the n-fold pixel unit and its width may be, for example, not more than 500 ⁇ m, so that the edge of the polarizing unit is also located in the black matrix region 9 of the pixel unit 7 after shrinking.
  • the cutting size may be, for example, a ⁇ m level, for example, high-definition cutting precision (for example, nano-cutting) may be used; in addition, for example, the polarizing plate may be bonded to the glass substrate of the display panel using a high-precision device, so that the polarizing unit
  • the edge position of 3 may correspond, for example, to the center of the black matrix region 9 (the center of the black matrix region 9 between adjacent pixel cells 7).
  • connection layer 4, the release layer 5, and the anti-scratch layer 6 may be formed after the polarizing layer is cut.
  • the material of the protective layer 1 may be, for example, cellulose triacetate or the like.
  • the material of the polarizing layer 2 may be, for example, polyethylene or the like.
  • the material of the connecting layer 4 may be, for example, a pressure sensitive adhesive.
  • the release layer 5 can be, for example, a release film or an equivalent material thereof, and the scratch prevention layer 6 can be, for example, a scratch-resistant film or an equivalent material thereof.
  • the side of the pixel unit parallel to the gate line of the display panel is, for example, a pixel unit.
  • the broad side of 7 (the side length of the wide side is the width of the pixel unit 7)
  • the side parallel to the data line of the display panel is, for example, the long side of the pixel unit 7 (the side length of the long side is the pixel unit 7) length).
  • the side of the pixel unit parallel to the gate line of the display panel is, for example, the long side of the pixel unit 7 (the side length of the long side is the length of the pixel unit 7)
  • the side parallel to the data line of the display panel is, for example, a pixel.
  • the broad side of the cell 7 (the side length of the wide side is the width of the pixel unit 7).
  • the three pixel units 7 on the display panel can constitute, for example, one pixel, and the three pixel units 7 can be, for example, pixel units of different colors, for example, pixel units of three colors of red, green and blue.
  • one polarizing unit 3 may correspond to one or more pixels, for example.
  • the polarizer provided by the embodiment of the present disclosure has a polarizing layer divided into a plurality of independent polarizing units, and the amount of shrinkage between the polarizing units is not affected, and the shrinkage amount of the polarizing layer of the overall structure is equally divided, so that the polarizing layer shrinks.
  • the amount is divided into multiple parts, the amount of shrinkage of each polarizing unit is small.
  • the edge of the polarizing unit may correspond to, for example, the black matrix area of the pixel unit, and the polarizing unit does not detach from the pixel unit after being contracted.
  • the black matrix area is indented onto the display area of the pixel unit so as not to affect the normal display of the display panel.
  • the linear polarizer is taken as an example.
  • the embodiment of the present disclosure is not limited to the linear polarizer, and may be applied to a circular polarizer, an elliptically polarized film, etc., which is not limited in the embodiment of the present disclosure.
  • the polarizer provided by the embodiment of the present disclosure can be applied to any display panel using a polarizer, such as a liquid crystal display panel, an OLED display panel, or the like.
  • a polarizer such as a liquid crystal display panel, an OLED display panel, or the like.
  • the amount of shrinkage of the polarizing unit 3 located at the frame of the liquid crystal display panel can be greatly reduced. Therefore, the frame of the liquid crystal display panel can be formed into a narrow frame of, for example, 2 mm or less.
  • the polarizer provided by the embodiment of the present disclosure may have a cutting error during the division process of the polarizing layer.
  • the edge of the polarizing unit falls on the black matrix area of the pixel unit covered by the polarizing unit, for example, in the present application.
  • the width of the polarizing unit is n times the width of the pixel unit, and the length of the polarizing unit is m times the length of the pixel unit.
  • the black matrix area shared by the adjacent pixel units on the display panel can be allocated to the adjacent pixel unit according to a specific situation, for example, as a separate black matrix area of the pixel unit, which may be evenly divided. It may be non-uniform, for example, it may be determined according to the edge position of the correspondingly disposed polarizing unit.

Abstract

一种偏光片（20）及其制作方法、显示面板（40）、显示设备（30）。偏光片（20）包括偏光层（2），偏光层（2）包括多个独立的偏光单元（3）。偏光单元（3）的长度为m倍的像素单元（7）的长度，偏光单元（3）的宽度为n倍的像素单元（7）的宽度；其中，m和n均为正整数，且m和n均不大于15。使用偏光片（20）制成的显示面板（40）的边框处的偏光单元（3）的收缩量可以大幅度降低，从而可以实现显示面板（40）的窄边框设计。

Description

偏光片及其制作方法、显示面板、显示设备 技术领域
本公开的实施例涉及一种偏光片及其制作方法、显示面板、显示设备。
背景技术
偏光片全称为偏振光片，可以控制特定光束的偏振方向。当自然光通过偏光片时，振动方向与偏光片透过轴垂直的光将被吸收，而只透过振动方向与偏光片透过轴平行的偏振光。
液晶显示面板表面通常具有偏光片，例如液晶显示面板包括分别设置在衬底基板两侧的两张偏光片，其中，下偏光片用于将背光源产生的光束转换为偏振光，上偏光片用于解析经液晶调制后的偏振光，产生明暗对比，从而产生显示画面。
发明内容
本公开至少一实施例提供一种偏光片，包括：偏光层，包括多个独立的偏光单元。
例如，本公开至少一实施例提供的偏光片中，所述偏光片用于显示面板，所述显示面板包括多个像素单元，且所述偏光单元的长度为m倍的像素单元的长度，偏光单元的宽度为n倍的像素单元的宽度；其中，m和n均为正整数，且m和n均不大于15。
例如，本公开至少一实施例提供的偏光片中，m和n均为1，多个所述偏光单元用于一一对应覆盖显示面板的多个所述像素单元。
例如，本公开至少一实施例提供的偏光片中，所述偏光单元的宽度不大于500μm、长度不大于1500μm。
例如，本公开至少一实施例提供的偏光片还包括：保护层；所述偏光层设置在所述保护层的第一表面上。
例如，本公开至少一实施例提供的偏光片还包括：连接层，设置在所述保护层的第二表面上。
例如，本公开至少一实施例提供的偏光片还包括：离型层，设置在所 述连接层的远离所述保护层的表面上。
例如，本公开至少一实施例提供的偏光片还包括：防划层，设置在所述偏光层的远离所述保护层的表面上。
例如，本公开至少一实施例提供的偏光片中，所述偏光层的材质为聚乙烯。
例如，本公开至少一实施例提供的偏光片中，所述保护层的材质为三醋酸纤维素。
例如，本公开至少一实施例提供的偏光片中，所述连接层的材质为压敏胶，所述离型层为离型膜，所述防划层为防划膜。
本公开至少一实施例提供一种显示面板，包括面板本体和上述任一偏光片，所述偏光片设置在所述面板本体的第一板面上。
例如，本公开至少一实施例提供的显示面板中，所述偏光单元的边缘对应于该偏光单元覆盖的所述面板本体的像素单元的黑矩阵区域的外边缘。
例如，本公开至少一实施例提供的显示面板中，所述显示面板包括多个所述像素单元，一个所述偏光单元对应覆盖多个所述像素单元。
例如，本公开至少一实施例提供的显示面板中，所述显示面板包括多个所述像素单元，多个所述偏光单元一一对应覆盖多个所述像素单元，多个所述偏光单元的边缘一一对应位于多个所述像素单元的黑矩阵区域的外边缘。
本公开至少一实施例提供一种显示设备，包括上述任一所述的显示面板。
本公开至少一实施例提供一种偏光片的制作方法，包括：切割偏光层以形成多个独立的偏光单元。
例如，本公开至少一实施例提供的偏光片的制作方法中，所述偏光片用于显示面板，所述显示面板包括多个像素单元，且所述偏光单元的长度为m倍的像素单元的长度，偏光单元的宽度为n倍的像素单元的宽度；其中，m和n均为正整数，且m和n均不大于15。
例如，本公开至少一实施例提供的偏光片的制作方法中，偏光层形成于保护层上，然后切割形成于所述保护层上的偏光层形成多个独立的偏光单元。
例如，本公开至少一实施例提供的偏光片的制作方法中，所述偏光单元与所述像素单元一一对应。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，而非对本公开的限制。
图1为本公开一实施例提供的偏光片的仰视结构示意图；
图2为图1中偏光层的主视结构示意图；
图3为本公开一实施例中像素单元的结构示意图；
图4为本公开一实施例中偏光单元贴附于像素单元上的结构示意图；
图5为本公开另一实施例中偏光单元贴附于像素单元上的结构示意图；
图6为本公开一实施例中显示面板的示意图；
图7为本公开一实施例中显示设备的示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
偏光片一般包括例如偏光层、保护层、压敏胶、离型膜等结构。其中，起到偏振作用的是偏光层，为了保护偏光层的物理特性，例如可以在偏光层的一侧或两侧复合一层具有高光透过率、耐水性好又有一定机械强度的保护层进行防护。
本申请发明人在研究时发现，在高温环境下，偏光片往往沿着偏光层延伸方向(吸收轴方向)收缩。例如，在高温80°放置500小时，偏光片的收缩率例如≤5％。若偏光片尺寸是100mm，偏光片收缩量例如能达到5mm，为了防止偏光片收缩到显示面板的可视区，需要将显示面板的单边边框做到2.5mm以上，使得大尺寸显示面板，例如大尺寸液晶显示面板无法实现2mm以下窄边框设计。
针对上述问题，可以通过降低偏光层的厚度，使偏光片的收缩率有一定程度的降低(例如降低约2％)。但是，当液晶显示面板尺寸做到10inch以上时，偏光片的尺寸接近200mm，即使搭配薄型的偏光层，偏光片的收缩量仍然较大，液晶显示面板也无法做到2mm以下的窄边框。
下面结合附图描述本公开实施例的一种偏光片及其制作方法、显示面板、显示设备。
实施例一
本实施例提供一种偏光片，如图1和图2所示，该偏光片包括偏光层2，该偏光层2包括多个独立的偏光单元3。
例如，该偏光片可以用于显示面板，该显示面板包括多个像素单元，且偏光单元3的长度为m倍的像素单元的长度，偏光单元3的宽度为n倍的像素单元的宽度；其中，m和n均为正整数，且m和n均不大于15。
例如，m可以为1、3、6、9、12或15；n例如也可以为1、3、6、9、12或15。当显示面板包括多种颜色的像素单元，例如包括例如红、绿、蓝三种像素单元时，以红、绿、蓝三种像素单元为一组，一个偏光单元3例如可以对应于一组或多组像素单元而设置，使偏光单元3的划分更加清晰，也使得偏光单元3在后续可能产生的收缩在不同颜色的像素单元中分配的更均匀，以减小其对显示效果的影响。
本实施例中，如图1和图2所示，偏光片例如还可以包括保护层1，偏光层2设置在保护层1第一表面101上，并在保护层1上分割成多个独立的偏光单元3，且偏光单元3的长度为m倍的像素单元7的长度，偏光 单元3的宽度为n倍的像素单元7的宽度。
本公开实施例提供的偏光片所包括的偏光层2分割成多个独立的偏光单元3，各个偏光单元3之间的收缩量不相互影响，并均分整体结构的偏光层2的收缩量，使得偏光层2的收缩量分成多份，每个偏光单元3的收缩量则很小，在应用于显示面板时，偏光单元3的边缘例如可以对应于像素单元7的黑矩阵(BM)遮光区域9，使得偏光单元3收缩后不会脱离像素单元7的黑矩阵区域9而缩入到像素单元7的显示区域8上，从而不会影响显示面板正常显示。
本公开实施例提供的偏光片可以应用于任何采用偏光片的显示面板，例如液晶显示面板、OLED显示面板等。例如在应用于液晶显示面板时，位于该液晶显示面板的边框处的偏光单元3的收缩量可以大幅度降低，因此该液晶显示面板的边框可以制作成例如2mm以下的窄边框。
本实施例中，因偏光层2分割过程中可能存在切割误差，在应用于显示面板时，偏光单元3的边缘例如落在其覆盖的像素单元7的黑矩阵区域9即可认为本申请中的偏光单元3的宽度为n倍的像素单元7的宽度，偏光单元3的长度为m倍的像素单元7的长度。
本实施例中，显示面板上的相邻像素单元7之间共用的黑矩阵区域9例如可以根据具体情况合理分配给该相邻的像素单元7，作为像素单元7单独的黑矩阵区域9，可以是均分，也可以是非均分，例如可以根据对应覆盖的偏光单元3的边缘位置来确定。
本实施例的一个示例中，如图3和图4所示，m和n均为1，多个偏光单元3可以一一对应覆盖显示面板的多个像素单元7，从而使每个偏光单元在后续可能产生收缩时其收缩量较小。
本实施例的另一示例中，如图5所示，一个偏光单元3例如也可以同时遮盖多个像素单元7，图5中示出了一个偏光单元3遮盖3个像素单元7的情况，此时偏光单元3切割位置例如可以根据计算得到，本公开在此不再赘述。该示例中，一个偏光单元与多个像素单元对应设置可以减少在制备过程中偏光层的切割次数，从而简化制备工艺。
本实施例中，偏光单元3的宽度例如不大于500μm，长度例如不大于1500μm，从而偏光单元3的边缘不缩入到像素单元7的显示区域8内。
本实施例中，如图1所示，偏光片还可以包括连接层4，连接层4设 置在保护层1的第二表面102上，用于在应用于显示面板时进行粘结固定。
本实施例中，如图1所示，偏光片还可以包括离型层5，离型层5设置在连接层4的远离保护层1的表面401上，在使用时例如可以揭除离型层5从而通过连接层4进行粘结固定。
本实施例中，如图1所示，偏光片还可以包括防划层6，防划层6设置在偏光层2的远离保护层1的表面201上，防止运输和安装过程中划伤偏光层2的远离保护层1的表面。
本实施例中，保护层1的材质例如可以为三醋酸纤维素或及其等同材质，偏光层2的材质例如可以为聚乙烯或及其等同材质，连接层4的材质例如可以为压敏胶或及其等同材质，离型层5例如可以为离型膜或及其等同材质，防划层6例如可以为防划膜或及其等同材质。
实施例二
本实施例提供一种显示面板，如图6所示，该显示面板包括面板本体10和本公开实施例提供的任一偏光片20，偏光片20设置在面板本体10的第一板面11上。
本实施例中，结合图3和图4，偏光片20的偏光单元3的边缘例如对应于该偏光单元3覆盖的面板本体10的像素单元7的黑矩阵区域9的外边缘。
本实施例中，例如可以根据偏光单元3的边缘确定其覆盖的像素单元7的黑矩阵区域9的外边缘，例如可以是相邻像素单元7之间的黑矩阵区域9的中心位置，也可以是非中心位置。
本实施例中，相邻像素单元7的黑矩阵区域9例如可以连接在一起，可在制作的过程中一起制成。
本实施例中，显示面板例如可以包括多个像素单元7，多个偏光单元3一一对应覆盖多个像素单元7，多个偏光单元3的边缘例如可以一一对应位于多个像素单元7的黑矩阵区域9的外边缘，以更好地防止偏光单元3的边缘缩入到像素单元7的显示区域8内，从而使显示面板具有更好的显示效果。
本实施例中，显示面板的单个像素单元7的尺寸例如可以在16-100μm之间，此时，例如可以将偏光层2按照像素单元7的尺寸或者其尺寸的倍数进行切割。以像素单元7的宽为100μm，长为300μm为例，例如将偏光 层2按照像素单元7尺寸，即按照宽100μm、长300μm进行切割成偏光单元3。所得到的偏光单元3的尺寸为宽100μm、长300μm，其高温收缩量若按3％计算，其高温收缩量在宽度方向上为3μm，在长度方向上为9μm。而像素单元7左、右、上侧的黑矩阵区域9的宽度≥2.5μm，因此相邻像素单元7之间的左、右、上侧的黑矩阵区域9的宽度≥5μm，而偏光片在宽度方向的收缩量为3μm，小于5μm；另外，邻像素单元7下侧黑矩阵区域9的宽度≥5μm，因此相邻像素单元7之间的下侧的黑矩阵区域9的宽度≥10μm，而偏光片在长度方向的收缩量为9μm，小于10μm，因此偏光单元3在高温下不会收缩到像素单元7可视区内，从而不会影响显示面板的显示效果(参见图4)。
本实施例中，偏光单元3的切割尺寸例如为μm级，例如可以使用高精细切割精度(例如纳米切割)；此外，例如可以使用高精度设备进行偏光片与显示面板的玻璃基板进行贴合，从而使得偏光单元3的边缘位置对应黑矩阵区域9的中心(相邻像素单元7之间的黑矩阵区域9的中心)。
本实施例中，像素单元7的尺寸可以不是唯一的，例如显示面板上的像素单元的尺寸可以相同，也可以不同。
本实施例的显示面板例如可以为液晶显示面板、OLED显示面板等，例如为液晶显示面板时，位于该液晶显示面板的边框处的偏光单元3的收缩量可以大幅度降低，因此该液晶显示面板的边框可以制作成例如2mm以下的窄边框。
实施例三
本实施例提供一种显示设备，如图7所示，该显示设备30包括本公开实施例提供的任一显示面板40。
本实施例提供的显示设备30例如可以为液晶显示设备、OLED显示设备费等，该显示设备30具备显示面板40的全部优点，在此不再赘述。
实施例四
本实施例提供一种偏光片的制作方法，该方法包括切割偏光层以形成多个独立的偏光单元。
例如，该偏光片可以用于显示面板，显示面板包括多个像素单元，且偏光单元的长度为m倍的像素单元的长度，偏光单元的宽度为n倍的像素单元的宽度；其中，m和n均为正整数，且m和n均不大于15。
本实施例中，偏光单元例如可以与像素单元一一对应而进行切割，从而使每个偏光单元在后续可能产生收缩时其收缩量较小；又或者，一个偏光单元例如可以与多个像素单元对应而进行切割，从而减少偏光单元切割次数，简化制备工艺。
本实施例中，偏光片的制作方法还可以包括：形成保护层，将偏光层形成于保护层上，然后切割设置于保护层上的偏光层形成多个独立的偏光单元，且偏光单元的长度为m倍的像素单元的长度，偏光单元的宽度为n倍的像素单元的宽度。
利用本公开实施例提供的偏光片的制作方法制成的偏光片，例如参照附图1-4，偏光层2分割成多个独立的偏光单元3，各个偏光单元3之间的收缩量不相互影响，并均分整体结构的偏光层2的收缩量，使得偏光层2的收缩量分成多份，每个偏光单元3的收缩量则很小，该偏光片在应用于显示面板时，偏光单元3的边缘例如可以对应于像素单元7的黑矩阵区域9，偏光单元3收缩后不会脱离像素单元7的黑矩阵区域9而缩入到像素单元7的显示区域8上，从而不会影响显示面板正常显示。
本实施例中，切割设置于保护层上的偏光层以形成多个独立的偏光单元时，偏光单元的长度为m倍的像素单元的长度且其长度例如可以不大于1500μm，偏光单元的宽度为n倍的像素单元的宽度且其宽度例如可以不大于500μm，使得偏光单元在收缩后其边缘也位于像素单元7的黑矩阵区域9内。
本实施例中，切割尺寸例如可以是μm级，例如可以使用高精细切割精度(例如纳米切割)；此外，例如可以使用高精度设备进行偏光片与显示面板的玻璃基板进行贴合，使得偏光单元3的边缘位置例如可以对应黑矩阵区域9的中心(相邻像素单元7之间的黑矩阵区域9的中心)。
本实施例中，例如可以在偏光层切割完成后再制作连接层4、离型层5和防划层6。
本实施例中，保护层1的材质例如可以采用三醋酸纤维素或及其等同材质，偏光层2的材质例如可以采用聚乙烯或及其等同材质，连接层4的材质例如可以采用压敏胶或及其等同材质，离型层5例如可以采用离型膜或及其等同材质，防划层6例如可以采用防划膜或及其等同材质。
本实施例中，与显示面板的栅线平行的像素单元的边例如为像素单元 7的宽边(该宽边的边长即为像素单元7的宽度)，与显示面板的数据线平行的边例如为像素单元7的长边(该长边的边长即为像素单元7的长度)。或者，与显示面板的栅线平行的像素单元的边例如为像素单元7的长边(该长边的边长即为像素单元7的长度)，与显示面板的数据线平行的边例如为像素单元7的宽边(该宽边的边长即为像素单元7的宽度)。
本实施例中，显示面板上三个像素单元7例如可以构成一个像素，该三个像素单元7例如可以为不同颜色的像素单元，例如为红、绿、蓝三种颜色的像素单元。本实施例中，一个偏光单元3例如可以对应一个或多个像素。
本公开实施例提供的偏光片，其偏光层分割成多个独立的偏光单元，各个偏光单元之间的收缩量不受影响，并均分整体结构的偏光层的收缩量，使得偏光层的收缩量分成多份，每个偏光单元的收缩量则很小，该偏光片在应用于显示面板时，偏光单元的边缘例如可以对应于像素单元的黑矩阵区域，偏光单元收缩后不会脱离像素单元的黑矩阵区域而缩入到像素单元的显示区域上，从而不会影响显示面板正常显示。
在上述实施例中以线偏光片为例进行了说明，但是本公开的实施例不限于线偏光片，也可以适用于圆偏光片、椭圆偏光片等，本公开的实施例对此不作限制。
本公开实施例提供的偏光片可以应用于任何采用偏光片的显示面板，例如液晶显示面板、OLED显示面板等。例如在应用于液晶显示面板时，位于该液晶显示面板的边框处的偏光单元3的收缩量可以大幅度降低，因此该液晶显示面板的边框可以制作成例如2mm以下的窄边框。
本公开实施例提供的偏光片，因偏光层分割过程中可能存在切割误差，在应用于显示面板时，偏光单元的边缘例如落在其覆盖的像素单元的黑矩阵区域即可认为本申请中的偏光单元的宽度为n倍的像素单元的宽度，偏光单元的长度为m倍的像素单元的长度。
本实施例中，显示面板上的相邻像素单元之间共用的黑矩阵区域例如可以根据具体情况合理分配给该相邻的像素单元，作为像素单元单独的黑矩阵区域，可以是均分，也可以是非均分，例如可以根据对应覆盖的偏光单元的边缘位置来确定。
有以下几点需要说明：
(1)本公开实施例的附图只涉及到与本公开实施例涉及到的结构，其他结构可参考通常设计。
(2)为了清晰起见，在用于描述本公开的实施例的附图中，层或区域的厚度被放大或缩小，即这些附图并非按照实际的比例绘制。可以理解，当诸如层、膜、区域或基板之类的元件被称作位于另一元件“上”或“下”时，该元件可以“直接”位于另一元件“上”或“下”，或者可以存在中间元件。
(3)在不冲突的情况下，本公开的实施例及实施例中的特征可以相互组合以得到新的实施例。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，本公开的保护范围应以所述权利要求的保护范围为准。
本申请要求于2017年5月12日递交的中国专利申请第201710333743.4号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (20)

  1. 一种偏光片，包括：
    偏光层，包括多个独立的偏光单元。
  2. 根据权利要求1所述的偏光片，其中，所述偏光片用于显示面板，所述显示面板包括多个像素单元，且所述偏光单元的长度为m倍的像素单元的长度，偏光单元的宽度为n倍的像素单元的宽度；
    其中，m和n均为正整数，且m和n均不大于15。
  3. 根据权利要求1或2所述的偏光片，其中，m和n均为1，多个所述偏光单元用于一一对应覆盖显示面板的多个所述像素单元。
  4. 根据权利要求1-3任一所述的偏光片，其中，所述偏光单元的宽度不大于500μm、长度不大于1500μm。
  5. 根据权利要求1-4任一所述的偏光片，还包括：
    保护层；所述偏光层设置在所述保护层的第一表面上。
  6. 根据权利要求5所述的偏光片，还包括：
    连接层，设置在所述保护层的第二表面上。
  7. 根据权利要求6所述的偏光片，还包括：
    离型层，设置在所述连接层的远离所述保护层的表面上。
  8. 根据权利要求5-7任一所述的偏光片，还包括：
    防划层，设置在所述偏光层的远离所述保护层的表面上。
  9. 根据权利要求1-8任一所述的偏光片，其中，所述偏光层的材质为聚乙烯。
  10. 根据权利要求5-8任一所述的偏光片，其中，所述保护层的材质为三醋酸纤维素。
  11. 根据权利要求8所述的偏光片，其中，所述连接层的材质为压敏胶，所述离型层为离型膜，所述防划层为防划膜。
  12. 一种显示面板，包括面板本体和如权利要求1至11中任一项所述的偏光片，所述偏光片设置在所述面板本体的第一板面上。
  13. 根据权利要求12所述的显示面板，其中，所述偏光单元的边缘对应于该偏光单元覆盖的所述面板本体的像素单元的黑矩阵区域的外边缘。
  14. 根据权利要求12或13所述的显示面板，其中，所述显示面板包括多个所述像素单元，一个所述偏光单元对应覆盖多个所述像素单元。
  15. 根据权利要求12或13所述的显示面板，其中，所述显示面板包括多个所述像素单元，多个所述偏光单元一一对应覆盖多个所述像素单元，多个所述偏光单元的边缘一一对应位于多个所述像素单元的黑矩阵区域的外边缘。
  16. 一种显示设备，包括如权利要求12-15任一所述的显示面板。
  17. 一种偏光片的制作方法，包括：切割偏光层以形成多个独立的偏光单元。
  18. 根据权利要求17所述的偏光片的制作方法，其中，所述偏光片用于显示面板，所述显示面板包括多个像素单元，且所述偏光单元的长度为m倍的像素单元的长度，偏光单元的宽度为n倍的像素单元的宽度；其中，m和n均为正整数，且m和n均不大于15。
  19. 根据权利要求17或18所述的偏光片的制作方法，其中，所述偏光层形成于保护层上，然后切割形成于所述保护层上的偏光层形成多个独立的偏光单元。
  20. 根据权利要求17至19任一所述的偏光片的制作方法，其中，所述偏光单元与所述像素单元一一对应。
PCT/CN2017/110376 2017-05-12 2017-11-10 偏光片及其制作方法、显示面板、显示设备 WO2018205527A1 (zh)

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