WO2017118091A1 - 偏光片及其制备方法、显示面板和显示装置 - Google Patents
偏光片及其制备方法、显示面板和显示装置 Download PDFInfo
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- WO2017118091A1 WO2017118091A1 PCT/CN2016/099284 CN2016099284W WO2017118091A1 WO 2017118091 A1 WO2017118091 A1 WO 2017118091A1 CN 2016099284 W CN2016099284 W CN 2016099284W WO 2017118091 A1 WO2017118091 A1 WO 2017118091A1
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- trench
- polarizer
- liquid metal
- orientation
- layer
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- 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
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00634—Production of filters
- B29D11/00644—Production of filters polarizing
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
-
- 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
- G02B5/3058—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state comprising electrically conductive elements, e.g. wire grids, conductive particles
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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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
- G02F1/133723—Polyimide, polyamide-imide
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
-
- 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
- G02F1/133548—Wire-grid polarisers
Definitions
- the present invention relates to the field of display technologies, and in particular, to a polarizer and a method for fabricating the same, a display panel including the polarizer, and a display device including the display panel.
- Liquid crystal display usually uses liquid crystal molecules with polarizers to achieve image display.
- the LCD generally includes an array substrate and a color filter substrate disposed on the cartridge, and a liquid crystal layer, a polarizer, and a backlight filled between the array substrate and the color filter substrate.
- the liquid crystal layer includes a plurality of liquid crystal molecules
- the polarizer has a certain polarization direction, and the light having the same vibration direction and the polarization direction of the polarizer can pass through the polarizer.
- the polarizer in the LCD generally includes an upper polarizer disposed on a backlight side of the array substrate and a lower polarizer disposed on a light exit side of the color filter substrate.
- the inventors have found that at least the prior art has problems in that the conventional polarizer is generally formed of an organic material such as polyvinyl alcohol or cellulose triacetate, and the polarizer formed of these materials has poor weather resistance and cannot be used for projection display.
- the display device of the energy excitation light source is generally formed of an organic material such as polyvinyl alcohol or cellulose triacetate, and the polarizer formed of these materials has poor weather resistance and cannot be used for projection display.
- the present invention is directed to a problem that the conventional polarizer has poor weather resistance and cannot be used in a display device of a high-energy excitation light source such as a projection display, and provides a polarizer, a method for preparing the same, a display panel, and a display device.
- a polarizer comprising:
- the alignment layer is provided with a trench, and the extending direction of the trench is consistent with the orientation direction of the alignment layer;
- a plurality of orientation structures formed in the trench, and a length direction of each of the alignment structures is parallel to an extending direction of the trench.
- the surface of the alignment layer provided with the trench is provided with a cover layer, the trench
- the alignment structure in the middle is sandwiched between the alignment layer and the cover layer; both ends of the groove are connected to the edge of the polarizer and open.
- the cover layer is composed of a polyester film;
- the alignment layer is composed of a polyimide material or an inorganic material.
- a protective layer is disposed on the surface of the cover layer and/or the alignment layer opposite to the surface on which the groove is formed.
- the cover layer or the surface of the alignment layer not formed with the trench is provided with an insulating layer.
- the orientation result is a liquid metal structure formed by curing of the curable material within the trench.
- the liquid metal structure is an alloy composed of at least two of lanthanum, gallium, lanthanum, potassium, sodium, indium, lithium, tin, antimony, zinc, antimony, magnesium, and aluminum.
- the oriented liquid metal structure has a rod shape, and a long axis direction of the rod-shaped liquid metal structure is parallel to an extending direction of the groove.
- a method of preparing a polarizer comprising the steps of:
- Forming a trench on the alignment layer, and the extending direction of the trench is consistent with the orientation direction of the alignment layer;
- a plurality of orientation structures are formed in the trench, and a length direction of each of the alignment structures is parallel to an extending direction of the trench.
- forming a plurality of orientation structures in the trench comprises the steps of:
- a mixture of a liquid metal and a curable material is poured into the trench, wherein a mass mixing ratio of the liquid metal to the curable material in the mixture is greater than or equal to 9:1;
- the curable material is cured.
- the step of applying an electric field parallel to the extending direction of the trench to the liquid metal, and stretching the liquid metal in an extending direction of the trench to form an orientation structure comprises: to the liquid state The metal applies an electric field parallel to the extending direction of the groove, and the liquid metal is stretched in the extending direction of the groove to form a rod shape A liquid metal structure, and a long axis direction of the rod-shaped liquid metal structure is parallel to an extending direction of the groove.
- the curable material comprises an ultraviolet curable material or a thermosetting material.
- the forming the plurality of orientation structures in the trench comprises the following steps:
- the orientation structure is added to the trench.
- forming a trench on the alignment layer and forming a plurality of alignment structures in the trench further comprising the step of forming a cap layer on the trench of the alignment layer, the trench is connected at both ends To the edge of the polarizer and open.
- a protective layer on the surface of the cover layer and/or the alignment layer opposite to the surface on which the trench is formed.
- a display panel includes a first substrate, a second substrate, and at least one of the above-mentioned polarizers disposed oppositely; each of the polarizers and the first substrate or the second substrate An adjacent setting.
- a display device includes a display panel and a backlight, wherein the display panel is the display panel described above, and the backlight is a laser light source.
- another display panel comprising a cover substrate and a polarizer, wherein the cover substrate and the polarizer are disposed adjacent to each other, and the polarizer is the polarizer described above.
- another display device comprising a display panel, wherein the display panel is the display panel described above.
- the orientation structure can exhibit large-scale deformation, directional motion, and self-rotation under a certain external electric field, thereby realizing the polarization of light.
- the polarizer of the invention has high integration degree, simple process and low cost.
- the polarizer of the present invention is suitable for use in various display devices, and since the polarizer of the present invention uses a material excellent in weather resistance as a base material, it can be used for laser light. In a display device such as a source of high energy light source.
- FIG. 1 is a schematic structural view of a polarizer according to an embodiment of the present invention.
- FIG. 2 is a schematic structural view of another polarizer according to an embodiment of the present invention.
- Figure 3 is a partial schematic view of the polarizer shown in Figure 2;
- Figure 4 is a schematic view showing the state of use of the polarizer shown in Figure 2;
- FIG. 5 is a flow chart of a method of preparing a polarizer according to an embodiment of the present invention.
- FIG. 6 is a schematic structural view of a display panel according to an embodiment of the present invention.
- the embodiment of the present invention provides a polarizer 1 , as shown in FIG. 1 to FIG. 4 , comprising: an alignment layer 11 , wherein the alignment layer 11 is provided with a trench 10 , and the extending direction of the trench 10 Consistent with the orientation direction of the alignment layer 11; and a plurality of alignment structures 12 formed in the trench 10, wherein the length direction of each of the alignment structures 12 is parallel to the extending direction of the trench 10.
- the orientation structure 12 may be formed by curing of a curable material, and may have a shape such as a rod shape or an elliptical shape.
- the direction perpendicular to the long axis direction of the orientation structure 12 is the polarization direction of the polarizer 1.
- the shape of 12 may be elliptical.
- the longitudinal direction of the orientation structure 12 is the long axis direction of the ellipse (ie, the horizontal direction in FIG. 3), and the short axis direction of the elliptical shape (ie, the vertical direction in FIG. 3) is the polarizer 1
- the direction of polarization is the long axis direction of the ellipse (ie, the horizontal direction in FIG. 3)
- the short axis direction of the elliptical shape ie, the vertical direction in FIG. 3
- the orientation structure 12 can exhibit large-scale deformation, directional motion, and self-rotation under a certain external electric field, thereby realizing the polarization of the light.
- the orientation structure 12 may include a material having high weather resistance (for example, liquid metal) to provide weather resistance of the polarizer 1.
- the present invention preferably employs a liquid metal.
- Liquid metal refers to an amorphous metal that can be thought of as a mixture of positive ion fluids and free electrons. Liquid metal has a universal deformation ability to switch between different forms and modes of motion at room temperature (20 ° C ⁇ 25 ° C).
- a liquid metal structure of a liquid metal immersed in water exhibits large-scale deformation capability, spin, directional motion, and self-rotation under a certain voltage, and liquid metal structures can be fused, fractured, refused, etc.
- the liquid metal can be used to form a liquid metal pattern, etc.; rather, a large liquid metal film can be shrunk into a single liquid metal ball in a few seconds, and the deformation process is very fast; Under the action of electric field, a large number of liquid metal spheres separated from each other can adhere to each other and merge until they are fused into a single liquid metal sphere; under the action of a predetermined electric field, the liquid metal structure can easily realize high-speed spin motion and induce surrounding The liquid metal structure rapidly spins to form a vortex pair in a fast spin state; if the electric field is properly adjusted, the liquid metal structure can also move rapidly in a predetermined direction.
- the orientation structure 12 may be an alloy composed of at least two of lanthanum, gallium, germanium, potassium, sodium, indium, lithium, tin, antimony, zinc, antimony, magnesium, and aluminum.
- the trench 10 shown in FIG. 1 is only schematic and cannot be used to limit the trench 10 in the practical application of the present invention.
- the structure of the trench 10 may be a microstructure, and the width of the trench 10 may be on the order of It is in the order of nanometers.
- the surface of the alignment layer 11 provided with the trench 10 may further be provided with a cover layer 13 in which the alignment structure 12 is sandwiched between the alignment layer 11 and the cover layer 13; Both ends of the trench 10 communicate with the edge of the polarizer 1 and form an opening. That is, as shown in FIG. 2, the orientation structure 12 is sandwiched between the alignment layer 11 and the cover layer 13.
- the grooves 10 are arranged in parallel in a row, and can be adjusted according to the angle requirement of the polarizer 1 in a specific application.
- the cover layer 13 may be composed of a polyester film (Polyester Film, abbreviated as PET).
- PET Polyester Film
- the cover layer 13 may be pasted on the face of the alignment layer 11 on which the groove 10 is formed by a patch process.
- the cover layer 13 may be formed of other materials, that is, the material of the cover layer 13 is not Limited to PET diaphragms.
- the alignment layer 11 may be composed of polyimide (Polyimide, PI for short) or inorganic material.
- the specific formation process may be: coating, magnetron sputtering, thermal evaporation or plasma enhanced chemical vapor deposition (English: Plasma Enhanced Chemical Vapor Deposition, PECVD).
- a PI material having a certain thickness is deposited on the carrier substrate, and the PI material is cured to obtain an alignment layer 11, and then the alignment layer 11 is oriented by a rubbing process or a photo-alignment process to form a trench on the alignment layer 11.
- Slot 10 10.
- the specific formation process may be: depositing a layer of inorganic material having a certain thickness on the carrier substrate by coating, magnetron sputtering, thermal evaporation or PECVD, and the inorganic material. Curing is performed to obtain the alignment layer 11, and then the alignment layer 11 is oriented by a micromachining process to form the trenches 10 on the alignment layer 11.
- the micromachining process is a process such as a nanoimprinting process or a microelectromechanical system (MEMS). It should be noted that although the present embodiment is described by taking the alignment layer 11 from a PI material or an inorganic material as an example, the material of the alignment layer 11 may be other materials in practical applications.
- the cover layer 13 and/or the surface of the alignment layer 11 opposite to the surface on which the trench 10 is formed may be provided with a protective layer 14.
- the protective layer 14 may be formed of a silicide, and may be coated, magnetron sputtering, thermal evaporation, or PECVD on the surface of the cover layer 13 and/or the alignment layer 11 opposite to the surface on which the trench 10 is formed.
- a silicide of a certain thickness is deposited as the protective layer 14.
- the protective layer 14 may be formed by chemical reaction using an oxide, a nitride or an oxynitride compound, and the corresponding reaction gas may be a mixed gas of SiH 4 , NH 3 , N 2 or a mixture of SiH 2 Cl 2 , NH 3 , N 2 . gas. It should be noted that although the present embodiment is described by taking the silicide formation of the protective layer 14 as an example, the protective layer 14 may be formed of other materials in practical applications.
- the cover layer 13 or the surface of the alignment layer 11 on which the trench 10 is not formed may be provided with an insulating layer 15. That is to say, an insulating layer 15 can be selectively disposed on the polarizer 1 of the embodiment.
- an insulating layer 15 can be selectively disposed on the polarizer 1 of the embodiment.
- the polarizer 1 of the present embodiment when the upper polarizer 1 disposed on the backlight side of the array substrate and the lower polarizer 1 disposed on the light exit side of the color filter substrate are both When the polarizer 1 of the present embodiment is employed, at least one of the upper polarizer 1 or the lower polarizer 1 may be provided with an insulating layer 15 for functioning the orientation structure 12 in the upper polarizer 1 and the lower polarizer 1. Insulate each other.
- the polarizer 1 provided in this embodiment realizes the polarization function of the polarizer 1 by using the alignment structure 12, so that the polarization direction of the polarizer 1 is easily controlled, and the yield of the polarizer 1 is high.
- the polarizer 1 of the invention has high design integration, simple process and low cost.
- the polarizer 1 of the present invention is suitable for use in various display devices. Further, since the polarizer 1 of the present invention can use a material having excellent weather resistance (for example, liquid metal) as a base material, it can be used for a high-energy light source such as a laser light source. In the display device.
- the embodiment of the present invention further provides a method for preparing the polarizer 1, as shown in FIG. 1-5, including steps S01 to S09.
- step S01 an alignment layer 11 is formed on the carrier substrate.
- polyimide Polyimide, abbreviated as: PI
- PI polyimide
- the carrier substrate may be a glass substrate such as a TFT glass substrate, a color film glass substrate, or a cover glass substrate of an OLED, and the like; and the coating may be any surface coated to the above substrate.
- step S02 the alignment layer 11 is subjected to an alignment treatment to form a trench 10 whose extending direction coincides with the alignment direction of the alignment layer 11.
- the orientation treatment process of this embodiment may employ a rubbing process or a photo-alignment process.
- the photo-alignment process is performed on the orientation of the polarization direction of the polarizer 1, because the photo-alignment process has a high degree of consistency and no particle problem.
- the purpose of the alignment treatment of the alignment layer 11 is to form the trench 10 so as to inject the alignment structure 12 into the trench 10, and the length direction of the alignment structure 12 is arranged along the extending direction of the trench 10.
- the structure of the trench 10 can be a microstructure, and the width of the trench 10 can be on the order of nanometers.
- the grooves 10 indicating the polarization direction of the light are arranged in parallel in a row, and in specific applications, the cutting can be performed according to the angular requirement of the polarizing plate 1.
- step S03 a cover layer 13 is formed on the face of the alignment layer 11 having the groove 10, and both ends of the groove 10 communicate with the edge of the polarizer and form an opening.
- an OCA (Optically Clear Adhesive) adhesive material is coated on a PET film, and then the OCA-coated side of the PET film is aligned with the formation of the alignment layer 11.
- a pressure of, for example, 5 Pa is applied to the PET film to adhere it to the face on which the alignment layer 11 is formed with the groove 10
- the PET film is baked, for example, at a temperature of 90 ° C for a while, for example At 10 min, the PET film was cured to be fixed on the face of the alignment layer 11 on which the grooves 10 were formed.
- a cover layer 13 covering the trench 10 is formed on the surface of the trench 10.
- the cover layer 13 covering the trench 10 may be formed by a PET film material and by a patch process and applying pressure.
- step S04 an electrode is formed on the carrier substrate on which the above steps are completed for applying an electric field to the alignment structure 12.
- a voltage is applied to the alignment structure 12 by the electrodes in order to achieve the orientation of the alignment structure 12 by applying an electric field such that the length direction of the alignment structure 12 is aligned along the extending direction of the trench 10.
- the electrode may be a transparent electrode, and for example, an electrode may be fabricated using ITO.
- the electrodes may be formed after the steps S01, S02, and S03 are completed, or the electrodes may be formed directly on the carrier substrate, and then the above steps S01, S02, and 03 are performed.
- the electrode is preferably formed on the edge of the carrier substrate such that after the prepared polarizer is peeled off in a subsequent step, the electrode can be reused.
- step S05 the material of the orientation structure 12 to be formed (for example, a mixture of liquid metal and curable material in this embodiment) is poured into the trench 10, wherein the mass ratio of the liquid metal to the curable material in the mixture is mixed. Can be greater than or equal to 9:1.
- an ODF One Drop Fill
- a mixture of the liquid metal and the curable material is dropped into the groove 10 from the opening at the other end, and after completion, the drip port (ie, the other end)
- the sealing process may be performed by coating the OCA material on the PET film, then applying a pressure of, for example, about 5 Pa to cover the groove 10, and then curing it to complete the process.
- CCD Charge-coupled Device, CCD for short
- CCD Charge-coupled Device, CCD for short
- the principle is similar to the principle of injecting liquid crystal in the liquid crystal cell of the display panel in the conventional liquid crystal display device.
- the mixture of liquid metal and curable material can be filled into the trench by evacuating the trench.
- step S6 an electric field or a magnetic field is applied to the carrier substrate on which the above steps are completed, and an alignment material (for example, a liquid metal in this embodiment) is subjected to orientation treatment to form the alignment structure 12.
- an alignment material for example, a liquid metal in this embodiment
- a voltage of 2-10 V is applied to the electrode for 10-30 s (seconds) to cause the electrode to apply an electric field of a predetermined intensity of 10-30 s to the alignment material, thereby causing each of the alignment materials to act along the electric field applied by the electrode.
- the groove 10 is stretched in the extending direction to form a stretched shape (for example, a rod shape or an elliptical shape), and finally the longitudinal direction of each of the stretched orientation materials (ie, the stretching direction) and the extending direction of the groove 10. parallel.
- the orientation structure 12 is a three-dimensional structure having a length and a thickness
- the orientation direction is such that the thickness direction thereof is the positive direction of the polarizer 1, and the length direction thereof is perpendicular to the polarization direction, such a design realizes polarization of light. That is, when light is incident, only linearly polarized light can be passed, and other rays are blocked.
- the curable material is cured to form a stable array of oriented structures 12.
- the curing method of the curable material may be UV curing or thermal curing; the specific curing method depends on the composition of the curable material, if the curable material includes an unsaturated resin (such as polyurethane acrylic resin). And monomer materials (such as ethylenically unsaturated monomers) are cured by UV curing; if the curable materials include thermosetting resins, they are cured by heat curing.
- unsaturated resin such as polyurethane acrylic resin
- monomer materials such as ethylenically unsaturated monomers
- the liquid metal has a high fluidity and exists in an arbitrary form under the action of an electric field and a magnetic field. This characteristic is advantageous for the polarizing plate used in the present invention, and therefore it is preferable to use a liquid metal as an orientation material.
- the stable array of the present invention is such that the lengthwise directions of the respective alignment structures 12 are arranged in the same direction and are arranged in the designed trenches 10, so that the transmission of light can be controlled.
- step S08 on the cover layer 13 or the orientation layer
- the insulating layer 15 is formed on the surface on which the trench 10 is not formed.
- the upper polarizer 1 and the lower polarizer 1 are used. At least one of them is required to be provided with an insulating layer 15 which is equivalent between the alignment structures 12 in the upper polarizer 1 and the lower polarizer 1, and functions to make the alignment structures in the upper polarizer 1 and the lower polarizer 1. 12 are insulated from each other.
- the protective layer 14 may be formed on the surface of the cover layer 13 and/or the alignment layer 11 opposite to the surface on which the trench 10 is formed.
- the protective layer 14 may be formed of a silicide, and a certain thickness is deposited on the surface of the cover layer 13 and/or the alignment layer 11 opposite to the surface on which the trench 10 is formed by coating, magnetron sputtering, thermal evaporation or PECVD.
- the silicide is used as the protective layer 14, wherein the protective layer 14 can be formed by chemical reaction using an oxide, a nitride or an oxynitride compound, and the corresponding reaction gas may be a mixed gas of SiH 4 , NH 3 , N 2 or SiH 2 . a mixed gas of Cl 2 , NH 3 , and N 2 .
- the step of forming the insulating layer 15 or the protective layer 14 on the surface of the alignment layer 11 where the trench 10 is not formed may be performed after the polarizer 1 is peeled off from the carrier substrate, or the insulating layer 15 may be formed on the carrier substrate in advance. Or after the protective layer 14, the steps S01, S02, and the like are performed.
- a functional layer may be formed on the surface of the carrier substrate on which the above steps are completed, that is, the surface layer may be treated by a process of attaching or coating a film.
- the surface layer may be treated by a process of attaching or coating a film.
- an anti-reflection film can be formed on the basis of the above steps; or other surface treatments can be used to make anti-reflection, scratch-resistant, brightening, etc.
- step S09 the completed polarizer 1 is peeled off from the carrier substrate, and the polarizer 1 is completed.
- the embodiment of the present invention further provides another method for preparing a polarizer, which is similar to the preparation method provided by the above embodiment, except that in the embodiment, the plurality of orientation structures formed in the trench is an orientation material first. An oriented structure is formed and then the oriented structure is added to the trench.
- the orientation material is prepared into an oriented structure before being poured into the trench.
- the oriented structure is then directly poured into the trench.
- Step S1 forming an alignment layer on the carrier substrate
- Step S2 performing alignment treatment on the alignment layer to form a trench, and the extending direction of the trench is consistent with the orientation direction of the alignment layer;
- Step S3 forming an orientation structure with an alignment material, then adding the orientation structure into the trench, and curing the alignment structure;
- Step S4 forming a cover layer
- Step S5 forming an insulating layer or a protective layer
- step S6 the completed polarizer is peeled off from the carrier substrate to complete the preparation of the polarizer.
- an embodiment of the present invention further provides a display panel including a first substrate 4, a second substrate 5, and at least one polarizer 1 of Embodiment 1. As shown in FIG. 6, the polarizer 1 It is disposed adjacent to either of the first substrate 4 or the second substrate 5.
- the first substrate 4 may be a color filter substrate
- the second substrate 5 may be an array substrate
- the first substrate 4 may be an array substrate
- the second substrate 5 may be a color filter substrate.
- an embodiment of the present invention further provides a display panel comprising a cover substrate and a polarizer, wherein the cover substrate and the polarizer are disposed adjacent to each other, and the polarizer is the polarizer provided in the above embodiment.
- the specific embodiments of the above embodiments may also be subjected to many changes; for example, the specific formation manner of the alignment layer may be selected according to actual conditions, or a corresponding functional layer may be added on the polarizer, for example, corresponding surface treatment, so that Anti-reflection, scratch resistance, brightening and other functions.
- an embodiment of the invention further provides a display device comprising any of the above display panels.
- the display device may be: a liquid crystal display panel, an electronic paper, an OLED panel, a mobile phone, a tablet computer, a television, a display, and a note Any product or component with display function, such as this computer, digital photo frame, and navigator.
- the display device may include a display panel and a backlight, and the backlight is a laser light source.
- the polarizer of the present invention uses a material excellent in weather resistance as a base material, it can be used in a display device of a high-energy light source such as a laser light source.
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- Spectroscopy & Molecular Physics (AREA)
- Polarising Elements (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
Claims (18)
- 一种偏光片,其特征在于,包括:取向层,所述取向层上设有沟槽,且所述沟槽的延伸方向与取向层的取向方向一致;形成于所述沟槽内的多个取向结构,且每个所述取向结构的长度方向与所述沟槽的延伸方向平行。
- 根据权利要求1所述的偏光片,其特征在于,所述取向层设有沟槽的面上设有覆盖层,所述沟槽中的取向结构被夹在取向层和覆盖层之间;所述沟槽两端连通至偏光片边缘并开口。
- 根据权利要求2所述的偏光片,其特征在于,所述覆盖层由聚酯薄膜构成;所述取向层由聚酰亚胺材料或者无机材料构成。
- 根据权利要求2所述的偏光片,其特征在于,所述覆盖层和/或所述取向层与形成有沟槽的面相对的面上设有保护层。
- 根据权利要求2所述的偏光片,其特征在于,所述覆盖层或所述取向层未形成有沟槽的面上设有绝缘层。
- 根据权利要求1所述的偏光片,其特征在于,所述取向结果是液态金属结构,其由可固化材料固化形成在所述沟槽内。
- 根据权利要求6所述的偏光片,其特征在于,所述液态金属结构是由铯、镓、铷、钾、钠、铟、锂、锡、铋、锌、锑、镁、铝中的至少两种构成的合金。
- 根据权利要求6所述的偏光片,其特征在于,所述取向液态金属结构呈棒状,并且所述棒状液态金属结构的长轴方向与所 述沟槽的延伸方向平行。
- 一种偏光片的制备方法,其特征在于,包括以下步骤:在取向层上形成沟槽,且所述沟槽的延伸方向与取向层的取向方向一致;在所述沟槽内形成多个取向结构,且每个所述取向结构的长度方向与所述沟槽的延伸方向平行。
- 根据权利要求9所述偏光片的制备方法,其特征在于,在所述沟槽内形成多个取向结构包括以下步骤:将液态金属与可固化材料的混合物灌注于沟槽内,其中,混合物中液态金属与可固化材料的质量混合比例大于或等于9:1;向所述液态金属施加平行于所述沟槽的延伸方向的电场,将所述液态金属沿所述沟槽的延伸方向拉伸形成取向结构;对所述可固化材料进行固化。
- 根据权利要求10所述偏光片的制备方法,其特征在于,所述向所述液态金属施加平行于所述沟槽的延伸方向的电场,将所述液态金属沿所述沟槽的延伸方向拉伸形成取向结构的步骤包括:向所述液态金属施加平行于所述沟槽的延伸方向的电场,将所述液态金属沿所述沟槽的延伸方向拉伸形成棒状液态金属结构,并且所述棒状液态金属结构的长轴方向与所述沟槽的延伸方向平行。
- 根据权利要求10所述偏光片的制备方法,其特征在于,所述可固化材料包括紫外固化材料或热固化材料。
- 根据权利要求9所述偏光片的制备方法,其特征在于,所述在所述沟槽内形成多个取向结构包括以下步骤:用液态金属形成取向结构;将取向结构加入沟槽内。
- 根据权利要求9所述偏光片的制备方法,其特征在于,在所述取向层上形成沟槽与在所述沟槽内形成多个取向结构之间,还包括在取向层的沟槽上形成覆盖层的步骤,所述沟槽两端连通至偏光片边缘并开口。
- 根据权利要求14所述偏光片的制备方法,其特征在于,在所述沟槽内形成多个取向结构后,还包括在所述覆盖层和/或所述取向层与形成有沟槽的面相对的面上形成保护层的步骤。
- 根据权利要求13所述偏光片的制备方法,其特征在于,在所述沟槽内形成多个取向结构后,还包括在所述覆盖层或所述取向层未形成有沟槽的面上形成绝缘层的步骤。
- 一种显示面板,包括相对设置的第一基板、第二基板,其特征在于,所述第一基板、第二基板中的至少一个基板上设有权利要求1-7中任一项所述的偏光片。
- 一种显示装置,其特征在于,包括权利要求17所述的显示面板。
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CN106019449A (zh) * | 2016-05-27 | 2016-10-12 | 京东方科技集团股份有限公司 | 偏光膜层、显示装置及其制作方法 |
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US10503003B2 (en) | 2019-12-10 |
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CN105425329B (zh) | 2019-01-22 |
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