POLAROID, MANUFACTURING METHOD THEREFOR, AND DISPLAY PANEL

Abstract

The present application provides a polaroid, a manufacturing method therefor, and a display panel, wherein the polaroid comprises a diametrically oriented material and a one-piece structured substrate material; wherein the one-piece structured substrate material comprises solvated liquid crystal molecules, the part of the substrate material in which the diametrically oriented material is dispersed is a first part, the part of the substrate material in which the diametrically oriented material is not dispersed is a second part, and the first part is arranged on one side of the second part; wherein the polaroid has a polarizing section and a compensating section, wherein the first part and the diametrically oriented material form the polarizing section and the second part is the compensating section.In the polaroid provided in the embodiment, since the substrate material comprising solvated liquid crystal molecules itself has a compensation function, the second part of the substrate material, which is not dispersed with a diametrically oriented material, forms a compensation portion, and the diametrically oriented material dispersed in the first part of the substrate material forms a polarization portion with the first part. Furthermore, since the polarization portion corresponds to the first part of the substrate material, the compensation portion corresponds to the second part of the substrate material, and the first part and the second part are both integrally formed, the complicated preparation process of the polaroid can be simplified and the thickness of the polaroid can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of display technology, specifically to a Polaroid, a manufacturing method therefor and a display panel. STATE OF THE ART

[0002] With the development of display technology, planar display devices such as liquid crystal displays (LCDs) have been widely used in various consumer electronics products such as mobile phones, televisions, personal digital assistants, digital cameras, notebooks, and desktop computers due to their advantages of high image quality, power saving, thin body, and wide application range. They have become the mainstream of display devices.

[0003] To realize the display function of the liquid crystal display panel, it is necessary to set up a polaroid on each side of the liquid crystal display panel. The polaroid includes a polarization section, where the liquid crystal molecules exhibit birefringent properties in the vertically aligned (VA) liquid crystal display panel. This requires the additional insertion of a compensation section into the polaroid, and separate film formation for the compensation section and the polarization section is required. This results in a complex preparation process and an increased thickness of the polaroid. This problem needs to be urgently addressed. DISCLOSURE OF THE INVENTION

[0004] The present application provides a Polaroid, a manufacturing method thereof, and a display panel that can effectively solve the problems of the complicated manufacturing process and the thicker thickness of the Polaroid.

[0005] In a first aspect, the present application presents a Polaroid comprising a diametrically oriented material and a one-piece structured substrate material, wherein the one-piece structured substrate material comprises solvated liquid crystal molecules, the part of the substrate material in which the diametrically oriented material is dispersed is a first part, the part of the substrate material in which the diametrically oriented material is not dispersed is a second part, and the first part is arranged on one side of the second part; wherein the polaroid has a polarization section and a compensation section, the first part and the diametrically oriented material forming the polarization section and the second part being the compensation section.

[0006] Optionally, it is designed that the solvated liquid crystal molecules in the second part are arranged in the same direction as the solvated liquid crystal molecules in the first part.

[0007] Optionally, the diametrically oriented material comprises iodide ions and complexes of iodide ions.

[0008] Optionally, the sum of the thicknesses of the second part and the first part is greater than or equal to 15 µm.

[0009] Optionally, the thickness of the first part is greater than or equal to 7 µm and the thickness of the second part is greater than or equal to 0.5 µm.

[0010] Optionally, the polaroid is designed to comprise a support layer, wherein the support layer is provided on a side of the polarization section facing away from the compensation section.

[0011] In a second aspect, the present application provides a display panel comprising at least one Polaroid according to any one of the preceding claims, the display panel further comprising an array base plate, a color film base plate, and a liquid crystal layer disposed between the array base plate and the color film base plate, the liquid crystal molecules in the liquid crystal layer having birefringent properties, the at least one Polaroid comprising: a first Polaroid provided on a side of the array base plate facing away from the liquid crystal layer, the polarizing portion in the first Polaroid being provided on a side of the compensating portion facing away from the array base plate;and / or a second polaroid provided on a side of the color film base plate facing away from the liquid crystal layer, wherein the polarizing section in the second polaroid is provided on a side of the compensation section facing away from the color film base plate;

[0012] Optionally, it is configured that the display panel comprises the first Polaroid and the second Polaroid, wherein the direction of the slow axis of the compensation section in the first Polaroid is perpendicular to the direction of the slow axis of the compensation section in the second Polaroid, the direction of the fast axis of the compensation section in the first Polaroid is perpendicular to the direction of the fast axis of the compensation section in the second Polaroid, and the direction of the light transmission axis of the polarization section in the first Polaroid is perpendicular to the direction of the light transmission axis of the polarization section in the second Polaroid.

[0013] Optionally, it is provided that the compensation section in the first polaroid is provided on a surface of a side of the array base plate facing away from the liquid crystal layer, and the compensation section in the second polaroid is provided on a surface of a side of the color film base plate facing away from the liquid crystal layer.

[0014] Optionally, it is designed that the first Polaroid further comprises a first substrate, wherein the first substrate is provided on a side of the array base plate facing away from the liquid crystal layer, and the compensation section in the first Polaroid is provided on the surface of a side of the first substrate facing away from the array base plate; that the second Polaroid further comprises a second substrate, wherein the second substrate is provided on a side of the color film base plate facing away from the liquid crystal layer, and the compensation section in the second Polaroid is provided on the surface of a side of the second substrate facing away from the color film base plate.

[0015] In a third aspect, the present application presents a manufacturing method for Polaroid comprising the following steps: Providing a carrier film layer, wherein a one-piece structured substrate material is formed by directional coating on the carrier film layer, wherein the one-piece structured substrate material comprises solvated liquid crystal molecules; Coating a surface of the one-piece structured substrate material with a diametrically oriented material, wherein the dispersion time of the diametrically oriented material is controlled such that the diametrically oriented material is dispersed in the first part of the substrate material such that the diametrically oriented material is not dispersed in the second part of the substrate material; wherein the first part is arranged on one side of the second part, the polaroid having a polarizing section and a compensating section, the first part and the diametrically oriented material comprising the polarizing section and the second part being the compensating section.

[0016] Optionally, it is designed that the diametrically oriented material comprises iodide ions and complexes of iodide ions, the sum of the thicknesses of the second part and the first part is greater than or equal to 15 µm and the dispersion time of the diametrically oriented material is 20-100 seconds.

[0017] Optionally, the thickness of the first part is greater than or equal to 7 µm and the thickness of the second part is greater than or equal to 0.5 µm.

[0018] The present application provides a polaroid, a manufacturing method therefor, and a display panel, wherein the polaroid comprises a diametrically oriented material and a one-piece structured substrate material; wherein the one-piece structured substrate material comprises solvated liquid crystal molecules, the part of the substrate material in which the diametrically oriented material is dispersed is a first part, the part of the substrate material in which the diametrically oriented material is not dispersed is a second part, and the first part is arranged on one side of the second part; wherein the polaroid has a polarizing section and a compensating section, wherein the first part and the diametrically oriented material form the polarizing section and the second part is the compensating section.Since, in the polaroid provided in the embodiment, the substrate material comprises solvated liquid crystal molecules, it is possible for the substrate material itself to have a compensation function, so that the second part of the substrate material, which is not dispersed with a diametrically oriented material, forms a compensation section; since the diametrically oriented material is dispersed in the first part of the substrate material, it is possible to form a polarization section by the first part and the diametrically oriented material.And since the polarizing portion corresponds to the first part of the substrate material, the compensating portion corresponds to the second part of the substrate material, and the first part and the second part are both integrally formed, the problems of the complicated preparation process and the increased thickness of the Polaroid caused by the need to form a film separately for the polarizing portion and the compensating portion can be effectively avoided, thereby simplifying the complicated preparation process of the Polaroid and reducing the thickness of the Polaroid. PRESENTATION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments are briefly introduced below. It is obvious that the drawings in the following description only illustrate some of the embodiments of the present application. Other drawings can be obtained by those skilled in the art without inventive step. Fig. 1 is a schematic diagram of a cross section of a Polaroid provided in Embodiment 1 of the present application. Fig. 2 shows a schematic diagram of a cross section of a display panel provided in Embodiment 1 of the present application. Fig. 3 shows a flowchart of a manufacturing method for a Polaroid provided in Embodiment 1 of the present application. Fig. 4 shows a schematic representation of a cross section of a Polaroid provided in Embodiment 2 of the present application. Fig. 5 is a schematic diagram of a cross section of a display panel provided in Embodiment 2 of the present application. List of reference symbols:

[0020] Polaroid 10; first Polaroid 101; second Polaroid 102; substrate material 11; first part 111; second part 112; diametrically oriented material 12; support layer 13; substrate 14; first substrate 141; second substrate 142; polarization section M1; compensation section M2; array base plate 21; color film base plate 22; liquid crystal layer 23 CONCRETE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. It is obvious that the described embodiments represent only a part of the embodiments of the present application and not all embodiments. Starting from the embodiments in the present application, all other embodiments that a person skilled in the art can make without inventive step fall within the scope of the present application. Furthermore, it is to be understood that the specific embodiments described herein are only for illustrating and explaining the present application and are not intended to limit the present application.In the present application, unless otherwise indicated, the use of directional terms such as "top" and "bottom" generally refers to the upper and lower parts of the device in the actual use or working condition in the accompanying drawings; and the words "inside" and "outside" refer to the upper and lower parts of the device in the actual use or working condition. The terms "inside" and "outside" refer to the contours of the device.

[0022] The following disclosure provides a number of different embodiments or examples of implementing various structures of the present application. To simplify the disclosure of the present application, the components and their arrangement are described. They are, of course, only examples and are not intended to limit the present application. Furthermore, reference numerals and / or letters may be repeated in various examples throughout the present application; this repetition is for convenience and clarity and is not, in itself, indicative of a relationship between the various embodiments and / or configurations discussed. Furthermore, various specific embodiments of methods and materials are recited throughout the present application; however, one skilled in the art may contemplate the use of other methods and / or materials.This will be described in detail below, and it should be noted that the order in which the following embodiments are described does not limit the preferred order of the embodiments. Example 1

[0023] Fig. 1 shows a schematic representation of a cross section of a Polaroid provided in Embodiment 1 of the present application. Referring to Fig. 1, Embodiment 1 of the present application provides a Polaroid 10 in a first aspect.

[0024] In some embodiments of the present application, the polaroid 10 comprises a diametrically oriented material 12 and a one-piece structured substrate material 11; wherein the one-piece structured substrate material 11 comprises solvated liquid crystal molecules, the part of the substrate material 11 in which the diametrically oriented material 12 is dispersed is a first part 111 and the part of the substrate material 11 in which the diametrically oriented material 12 is not dispersed is a second part 112, wherein the first part 111 is arranged on one side of the second part 112; wherein the polaroid 10 has a polarization section M1 and a compensation section M2, the first part 111 and the diametrically oriented material 12 form the polarization section M1 and the second part 112 is the compensation section M2.

[0025] Since, in the polaroid 10 provided in the embodiment of the present application, the substrate material 11 comprises solvated liquid crystal molecules, it is possible for the substrate material 11 itself to have a compensation function, so that the second part 112 of the substrate material 11, which is not dispersed with a diametrically oriented material 12, forms a compensation section M2; since the diametrically oriented material 12 is dispersed in the first part 111 of the substrate material 11, it is possible to form a polarization section M1 by the first part 111 and the diametrically oriented material 12.And since the polarizing portion M1 corresponds to the first part 111 of the substrate material 11, the compensating portion M2 corresponds to the second part 112 of the substrate material 11, and the first part 111 and the second part 112 are both integrally formed, the problems of the complicated preparation process and the increased thickness of the Polaroid 10 caused by the need to form a film separately for the polarizing portion M1 and the compensating portion M2 can be effectively avoided, thereby simplifying the complicated preparation process of the Polaroid 10 and reducing the thickness of the Polaroid 10.

[0026] In the polaroid 10 provided by the embodiment of the present application, the method of forming the integral structure of the substrate material 11 may be directional coating. The integrally structured substrate material 11 is a solvated liquid crystal layer, and the first part 111 and the second part 112 are part of the solvated liquid crystal layer and both contain solvated liquid crystal molecules. Therefore, it is possible to form the first part 111 with solvated liquid crystal molecules and the second part 112 with solvated liquid crystal molecules by directional coating of the solvated liquid crystal layer.

[0027] The applicant has found that the solvated liquid crystal molecules not including the diametrically oriented material 12 are single-optical axis crystals having birefringent properties, and that the refractive indices of the solvated liquid crystal molecules in the transverse direction, in the longitudinal direction, and in the vertical direction can be adjusted by adjusting the material of the solvated liquid crystal molecules, so that the directionally coated solvated liquid crystal layer has a phase difference compensation function.That is, the compensation portion M2 can be formed using the solvated liquid crystal layer not containing the diametrically oriented material 12; further, the applicant has found that when the diametrically oriented material 12 is coated on the solvated liquid crystal layer, the diametrically oriented material 12 is dispersed from the surface of the solvated liquid crystal layer into the interior thereof and is oriented after curing, so that the solvated liquid crystal layer containing the diametrically oriented material 12 is endowed with the polarization function.That is, the polarization section M1 can be formed by dispersing the diametrically oriented material 12 in the solvated liquid crystal layer. Moreover, the applicant unexpectedly found that when the diametrically oriented material 12 is coated on the solvated liquid crystal layer, the diametrically oriented material 12 is dispersed from the surface of the solvated liquid crystal layer into the interior thereof. The dispersion depth of the diametrically oriented material 12 has a positive relationship to the dispersion time, and the dispersion time can be artificially controlled. In actual production, the dispersion depth of the diametrically oriented material 12 can be precisely controlled by controlling the dispersion time. Thus, by controlling the dispersion depth of the diametrically oriented material 12, it can be designed so that in the lower part (ie,the second part 112 of the substrate material 11) of the solvated liquid crystal layer, the diametrically oriented material 12 is not dispersed to serve as the compensation section M2 of the polaroid 10, and the diametrically oriented material 12 is dispersed in the upper part (i.e., the first part 111 of the substrate material 11) of the solvated liquid crystal layer to serve as the polarization section M1 of the polaroid 10. Thus, the one-piece structured substrate material 11 is formed using a one-time coating process. And the compensation section M2 and the polarization section M1 are formed by controlling the dispersion time of the diametrically oriented material 12, thereby simplifying the manufacturing process of the polaroid 10 and giving the polaroid 10 a smaller and thinner thickness.

[0028] In some embodiments of the present application, the solvated liquid crystal molecules in the second part 112 are arranged in the same direction as the solvated liquid crystal molecules in the first part 111.

[0029] Since both the second part 112 and the first part 111 contain solvated liquid crystal molecules, it is possible in the Polaroid 10 provided by the present application to produce the substrate material 11, which comprises the second part 112 and the first part 111, in a one-part molding process by directional coating of the solvated liquid crystal layer. That is, the second part 112 and the first part 111 are formed in a single directional coating process. Thus, the solvated liquid crystal molecules in the second part 112 are arranged in the same direction as the solvated liquid crystal molecules in the first part 111.

[0030] In some embodiments of the present application, the diametrically oriented material 12 comprises iodide ions and complexes of iodide ions.

[0031] In the polarizer 10 provided by the present application, when the diametrically oriented material 12 is an iodine-based material comprising iodide ions and complexes of iodide ions, the dispersion rate of the diametrically oriented material 12 in the solvated liquid crystal layer is more controllable compared to other diametrically oriented materials 12. It is possible to prevent the diametrically oriented material 12 from being dispersed into the second part 112 due to the excessively fast dispersion rate as much as possible, so that it is easier for the polaroid 10 to form the compensation section M2 without the dispersed diametrically oriented material 12 and the polarization section M1 with the dispersed diametrically oriented material 12, resulting in an improvement in the deployment yield of the polaroid 10.

[0032] In some embodiments of the present application, the sum of the thicknesses of the second part 112 and the first part 111 is greater than or equal to 15 µm.

[0033] In the polaroid 10 provided by the present application, the sum of the thicknesses of the second part 112 and the first part 111 is the total thickness of the solvated liquid crystal layer. When the dispersion rate of the diametrically oriented material 12 in the solvated liquid crystal layer is fixed, the smaller the thickness of the solvated liquid crystal layer, the shorter the dispersion time of the diametrically oriented material 12 from the top surface to the bottom surface of the solvated liquid crystal layer, which in turn causes the diametrically oriented material 12 to be dispersed into the second part 112, which impairs the performance of the compensation section M2.In the present application, by controlling the sum of the thicknesses of the second part 112 and the first part 111 to 15 μm or more, the time for the dispersion of the diametrically oriented material 12 from the top surface to the bottom of the solvated liquid crystal layer can be above a threshold range, and thus the diametrically oriented material 12 can be avoided as much as possible from being dispersed into the second part 112 due to the dispersion rate being too fast, so that it is easier for the polaroid 10 to form the compensation section M2 without the dispersed diametrically oriented material 12 and the polarization section M1 with the dispersed diametrically oriented material 12, resulting in an improvement in the delivery yield of the polaroid 10.

[0034] In some embodiments of the present application, the thickness of the first part 111 is greater than or equal to 7 µm and the thickness of the second part 112 is greater than or equal to 0.5 µm.

[0035] Since the thickness of the first part 111 is greater than or equal to 7 µm and the thickness of the second part 112 is greater than or equal to 0.5 µm, in the polaroid 10 provided by the present application, it is possible to make the dispersion time of the diametrically oriented material 12 in the first part 111 more easily controllable while the diametrically oriented material 12 in the first part 111 has a certain dispersion depth to improve the polarization effect of the polarization section M1, and at the same time, to avoid the problem of an insufficient thickness of the compensation section M2 and a reduced compensation effect caused by the thickness of the first part 111 in the solvated liquid crystal layer accounting for too large a proportion and the dispersion depth being too deep.

[0036] Specifically, the applicant has experimentally verified that with the extension of the dispersion time of the diametrically oriented material 12, the diffusion depth of the diametrically oriented material 12 in the first part 111 increases. As an example, a substrate material 11 with a dry film thickness of 15 µm is mentioned here: When the dispersion time of the diametrically oriented material 12 is 20 seconds, the diffusion depth of the diametrically oriented material 12 in the first part 111 is 7 µm, with the thickness of the first part 111 being 7 µm; When the dispersion time of the diametrically oriented material 12 is 30 seconds, the diffusion depth of the diametrically oriented material 12 in the first part 111 is 9 µm, with the thickness of the first part 111 being 9 µm;When the dispersion time of the diametrically oriented material 12 is 40 seconds, the diffusion depth of the diametrically oriented material 12 in the first part 111 is 10 µm, wherein the thickness of the first part 111 is 10 µm; When the dispersion time of the diametrically oriented material 12 is 50 seconds, the diffusion depth of the diametrically oriented material 12 in the first part 111 is 11 µm, wherein the thickness of the first part 111 is 11 µm; When the dispersion time of the diametrically oriented material 12 is 60 seconds, the diffusion depth of the diametrically oriented material 12 in the first part 111 is 12 µm, wherein the thickness of the first part 111 is 12 µm; When the dispersion time of the diametrically oriented material 12 is 70 seconds, the diffusion depth of the diametrically oriented material 12 in the first part 111 is 12.8 m, the thickness of the first part 111 being 12.8 µm;When the dispersion time of the diametrically oriented material 12 is 80 seconds, the diffusion depth of the diametrically oriented material 12 in the first part 111 is 13.5 µm, and the thickness of the first part 111 is 13.5 µm; When the dispersion time of the diametrically oriented material 12 is 90 seconds, the diffusion depth of the diametrically oriented material 12 in the first part 111 is 14 µm, and the thickness of the first part 111 is 14 µm; When the dispersion time of the diametrically oriented material 12 is 100 seconds, the diffusion depth of the diametrically oriented material 12 in the first part 111 is 14.3 µm, the thickness of the first part 111 being 14.3 µm.;

[0037] In some embodiments of the present application, the polaroid 10 comprises a support layer 13, wherein the support layer 13 is provided on a side of the polarization section M1 facing away from the compensation section M2.

[0038] In the Polaroid 10 provided by the present application, the Polaroid 10 includes only one support layer 13, and the support layer 13 is provided on a side of the polarizing portion M1 opposite the compensation film. That is, a side of the compensation portion M2 opposite the polarizing portion M1 is not provided with a support layer. Compared with the prior art structure requiring the support layer to be provided on both opposite sides of the polarizing portion M1, the Polaroid 10 can have a thinner and lighter thickness and a simplified film layer structure, and the production and delivery costs of the Polaroid 10 can be further reduced.

[0039] Specifically, the support layer 13 is used to protect the Polaroid 10, and the support layer 13 is made of tricellulose acetate (tricellulose acetate, abbreviated as TAC) or polymethyl methacrylate (polymethyl methacrylate, abbreviated as PMMA) or cycloolefin polymer (cycloolefin polymer, abbreviated as COP). Since the substrate material 11 comprising the second part 112 and the first part 111 in the Polaroid 10 provided by the present application can be formed by directionally coating a solvated liquid crystal layer, the support film layer of the solvated liquid crystal layer (substrate material 11) can be directly used as the protective film layer of the Polaroid 10, thereby enabling the omission of the support layer 13 in the Polaroid 10. When the support film layer is a base plate in a display panel, the base plate in the display panel can be used as the protective film layer of the Polaroid 10.This ensures the stability of use of the Polaroid 10 while reducing the thickness of the Polaroid 10 and simplifying the film layer structure of the Polaroid 10.

[0040] In some embodiments of the present application, the direction of the slow axis of the compensation section M2 is parallel or perpendicular to the direction of the light transmission axis of the polarization section M1.

[0041] In the polaroid 10 provided by the present application, the solvated liquid crystal molecules in the second part 112 have a fast axis and a slow axis because the solvated liquid crystal molecules have birefringent properties. In the present application, the compensation effect of the compensation section M2 can be ensured at a wide viewing angle by making the slow axis direction of the compensation section M2 parallel or perpendicular to the light transmission axis direction of the polarizing section M1.

[0042] In some embodiments of the present application, in order to ensure the compensation effect of the compensation section M2 under a large viewing angle, the compensation value of the compensation section M2 meets the following requirements: 10 nm <Re<250 nm, 50 nm<Rth<400 nm, wobei Re=(n1-n2)*d, Rth=[(n1+n2) / 2-n3]*d, wobei Re der Kompensationswert des Kompensationsabschnitts M2 in einer horizontalen Richtung parallel zu dem Polaroid 10 ist, Rth der Kompensationswert des Kompensationsabschnitts M2 in einer vertikalen Richtung senkrecht zu dem Polaroid 10 ist, n1 der Brechungsindex des Kompensationsabschnitts M2 in einer Querrichtung in der horizontalen Richtung ist, n2 der Brechungsindex des Kompensationsabschnitts M2 in einer Längsrichtung in der horizontalen Richtung ist, n3 der Brechungsindex des Kompensationsabschnitts M2 in der vertikalen Richtung ist, und d die Dicke des Kompensationsabschnitts M2 in der vertikalen Richtung ist.

[0043] Fig. 2 shows a schematic diagram of a cross section of a display panel provided in Embodiment 1 of the present application. Referring to Fig. 2, in a second aspect, the present application further provides a display panel comprising at least one Polaroid 10 according to any one of the preceding claims, the display panel further comprising an array base plate 21, a color film base plate 22, and a liquid crystal layer 23 disposed between the array base plate 21 and the color film base plate 22, the liquid crystal molecules in the liquid crystal layer 23 having birefringent properties, the at least one Polaroid 10 comprising: a first Polaroid 101 provided on a side of the array base plate 21 facing away from the liquid crystal layer 23, the polarization section M1 in the first Polaroid 101 being provided on a side of the compensation section M2 facing away from the array base plate 21;and / or a second polaroid 102 provided on a side of the color film base plate 22 facing away from the liquid crystal layer 23, wherein the polarizing section M1 in the second polaroid 102 is provided on a side of the compensating section M2 facing away from the color film base plate 22;

[0044] In the display panel provided by the present application, the liquid crystal layer 23 provided between the array base plate 21 and the color film base plate 22 has birefringent properties, and if there is no compensation section M2 in the polaroid 10, the display effect of the display panel will be seriously deteriorated. This is also the reason why the polaroid 10 provided by the present application includes a compensation section M2. Optionally, the display panel is a vertically arranged liquid crystal display panel with a better display effect at a wide viewing angle, wherein the array base plate 21 includes pixel electrodes and the color film base plate 22 includes a common electrode.

[0045] With reference to Fig. 2, in some embodiments of the present application, the display panel comprises the first Polaroid 101 and the second Polaroid 102, wherein the direction of the slow axis of the compensation section M2 in the first Polaroid 101 is perpendicular to the direction of the slow axis of the compensation section M2 in the second Polaroid 102, the direction of the fast axis of the compensation section M2 in the first Polaroid 101 is perpendicular to the direction of the fast axis of the compensation section M2 in the second Polaroid 102, and the direction of the light transmission axis of the polarization section M1 in the first Polaroid 101 is perpendicular to the direction of the light transmission axis of the polarization section M1 in the second Polaroid 102.

[0046] In the display panel provided by the present application, since the slow axis direction of the compensation portion M2 in the first polaroid 101 is perpendicular to the slow axis direction of the compensation portion M2 in the second polaroid 102, and the fast axis direction of the compensation portion M2 in the first polaroid 101 is perpendicular to the fast axis direction of the compensation portion M2 in the second polaroid 102, the display adaptability of the compensation portion M2 in the first polaroid 101, the compensation portion M2 in the second polaroid 102, and the vertically arranged liquid crystal display panel can be ensured; the light transmission axis direction of the polarizing portion M1 in the first polaroid 101 is perpendicular to the light transmission axis direction of the polarizing portion M1 in the second polaroid 102.In this way, the display adaptability of the polarizing portion M1 in the first polaroid 101, the polarizing portion M1 in the second polaroid 102, and a vertically arranged liquid crystal display panel can be ensured.

[0047] Of course, in other embodiments of the present application, the display panel may comprise only the first Polaroid 101 or the second Polaroid 102.

[0048] When the display panel includes only the first Polaroid 101 or the second Polaroid 102, the display panel further includes a conventional Polaroid provided opposite the first Polaroid 101 or the second Polaroid 102, the conventional Polaroid having a different structure than the first Polaroid 101 or the second Polaroid 102. In this case, the slow axis of the compensation portion M2 in the first Polaroid 101 is perpendicular to the light transmission axis of the polarization portion M1, or the slow axis of the compensation portion M2 in the second Polaroid 102 is perpendicular to the light transmission axis of the polarization portion M1.

[0049] In some embodiments of the present application, the compensation portion M2 in the first polaroid 101 is provided on the surface on a side of the array base plate 21 facing away from the liquid crystal layer 23, so as to use the substrate in the array base plate 21 as a support film layer of the first polaroid 101 and the substrate in the array base plate 21 as a protective film layer for the compensation portion M2 in the first polaroid 101, thereby avoiding the problem of increasing the thickness of the first polaroid 101 and complicating the structure of the film layer caused by additionally providing a support layer 13 on a side facing away from the polarization portion M1 of the compensation portion M2. Alternatively, the substrate in the array base plate 21 may be a glass substrate.

[0050] In some embodiments of the present application, the compensation portion M2 in the second polaroid 102 is provided on the surface of a side of the color film base plate 22 facing away from the liquid crystal layer 23 in order to use the substrate in the color film base plate 22 as a support film layer for the second polaroid 102 and to use the substrate in the color film base plate 22 as a protective film layer for the compensation portion M2 in the second polaroid 102, whereby the problem of increasing the thickness of the second polaroid 102 and complicating the structure of the film layer caused by additionally providing a support layer 13 on a side facing away from the polarization portion M1 of the compensation portion M2 can be avoided. Alternatively, the substrate in the color film base plate 22 may be a glass substrate.

[0051] Fig. 3 shows a flowchart of a manufacturing method for a Polaroid provided in Embodiment 1 of the present application. Referring to Fig. 1-3, Embodiment 1 of the present application further provides, in a third aspect, a Polaroid 10 manufacturing method for manufacturing the Polaroid 10 according to any one of the preceding claims, the Polaroid 10 manufacturing method comprising the steps of: Step S01, Step S02.

[0052] Here, step S01 comprises: providing a carrier film layer, wherein a one-piece structured substrate material 11 is formed by directional coating on the carrier film layer, wherein the one-piece structured substrate material 11 comprises solvated liquid crystal molecules; Here, step S02 comprises: coating a surface of the one-piece structured substrate material 11 with a diametrically oriented material 12, wherein the dispersion time of the diametrically oriented material 12 is controlled such that the diametrically oriented material 12 is dispersed in the first part 111 of the substrate material 11, so that the diametrically oriented material 12 is not dispersed in the second part 112 of the substrate material 11; wherein the first part 111 is arranged on one side of the second part 112, the polaroid having a polarization section M1 and a compensation section M2, wherein the first part 111 and the diametrically oriented material 12 comprise the polarization section M1 and the second part 112 is the compensation section M2.

[0053] In the Polaroid 10 manufactured by the Polaroid 10 manufacturing method provided by the present application, the diametrically oriented material 12 is dispersed only in the first part 111 and not in the second part 112. Therefore, the first part 111 and the diametrically oriented material 12 dispersed in the first part 111 can form a polarization section M1 of the Polaroid 10, while the second part 112 can act as a compensation section M2 of the Polaroid 10. Since the polarizing portion M1 corresponds to the first part 111 of the substrate material 11, the compensating portion M2 corresponds to the second part 112 of the substrate material 11, and the first part 111 and the second part 112 are integrally structured, it is possible to simplify the complicated preparation process of the Polaroid 10 and reduce the thickness of the Polaroid 10.

[0054] Furthermore, since the substrate material 11, which includes the second part 112 and the first part 111, can be integrally formed by directionally coating a solvated liquid crystal layer, it is possible to improve the deployment efficiency of the polaroid 10 and reduce the production and manufacturing costs of the polaroid 10. Compared with conventional polarizers formed using roll-to-roll film technology in the corresponding process technology, it is not subject to the width limitation and can therefore be used for deploying ultra-large display panels, such as display panels of more than 75 inches.

[0055] In some embodiments of the present application, the diametrically oriented material 12 comprises iodide ions and complexes of iodide ions, the sum of the thicknesses of the second part 112 and the first part 111 is greater than or equal to 15 µm, and the dispersion time of the diametrically oriented material 12 is 20-100 seconds.

[0056] In the present application, by using a diametrically oriented material 12 comprising iodide ions and a complex of iodide ions of the iodine system, which has a more controllable dispersion rate in a solvated liquid crystal layer, and by controlling the dispersion time of the diametrically oriented material 12 of the iodide system to 20-100 seconds, it is possible to form the second part 112 in which the diametrically oriented iodine-based material 12 is not dispersed and the first part 111 in which the diametrically oriented iodine-based material 12 is dispersed when the diametrically oriented iodine-based material 12 is dispersed in a solvated liquid crystal layer having a thickness of 15 μm or more, thereby greatly improving the manufacturing yield 10 of the polaroid.

[0057] In some embodiments of the present application, the thickness of the first part 111 is greater than or equal to 7 µm and the thickness of the second part 112 is greater than or equal to 0.5 µm.

[0058] In the polaroid 10 provided by the polaroid manufacturing method in the present application, the thickness of the first portion 111 is greater than or equal to 7 µm, and the thickness of the second portion 112 is greater than or equal to 0.5 µm. Therefore, it is possible to make the dispersion time of the diametrically oriented material 12 in the first portion 111 more easily controllable. This avoids the problem of the insufficient thickness of the compensation portion M2 and the reduced compensation effect caused by the thickness of the first portion 111 in the solvated liquid crystal layer accounting for too large a proportion of the thickness of the first portion 111 and the dispersion depth being too deep, while improving the polarization effect of the polarization portion M1.

[0059] Specifically, the applicant has experimentally verified that with the extension of the dispersion time of the diametrically oriented material 12, the diffusion depth of the diametrically oriented material 12 in the first part 111 increases. As an example, a substrate material 11 with a dry film thickness of 15 µm is mentioned here: When the dispersion time of the diametrically oriented material 12 is 20 seconds, the diffusion depth of the diametrically oriented material 12 in the first part 111 is 7 µm, with the thickness of the first part 111 being 7 µm; When the dispersion time of the diametrically oriented material 12 is 30 seconds, the diffusion depth of the diametrically oriented material 12 in the first part 111 is 9 µm, with the thickness of the first part 111 being 9 µm;When the dispersion time of the diametrically oriented material 12 is 40 seconds, the diffusion depth of the diametrically oriented material 12 in the first part 111 is 10 µm, wherein the thickness of the first part 111 is 10 µm; When the dispersion time of the diametrically oriented material 12 is 50 seconds, the diffusion depth of the diametrically oriented material 12 in the first part 111 is 11 µm, wherein the thickness of the first part 111 is 11 µm; When the dispersion time of the diametrically oriented material 12 is 60 seconds, the diffusion depth of the diametrically oriented material 12 in the first part 111 is 12 µm, wherein the thickness of the first part 111 is 12 µm; When the dispersion time of the diametrically oriented material 12 is 70 seconds, the diffusion depth of the diametrically oriented material 12 in the first part 111 is 12.8 m, the thickness of the first part 111 being 12.8 µm;When the dispersion time of the diametrically oriented material 12 is 80 seconds, the diffusion depth of the diametrically oriented material 12 in the first part 111 is 13.5 µm, and the thickness of the first part 111 is 13.5 µm; When the dispersion time of the diametrically oriented material 12 is 90 seconds, the diffusion depth of the diametrically oriented material 12 in the first part 111 is 14 µm, and the thickness of the first part 111 is 14 µm; When the dispersion time of the diametrically oriented material 12 is 100 seconds, the diffusion depth of the diametrically oriented material 12 in the first part 111 is 14.3 µm, the thickness of the first part 111 being 14.3 µm.;

[0060] In some embodiments of the present application, the carrier film layer is a substrate of the array base plate 21 or a substrate of the color film base plate 22.

[0061] In some embodiments of the present application, the coating of the solvated liquid crystal layer is as similar as the direction of the light-absorbing axis of the polarization section M1. Furthermore, in providing the first Polaroid 101 and the second Polaroid 102, the arrangement direction of the solvated liquid crystal molecules in the second part 112 in the first Polaroid 101 is perpendicular to the arrangement direction of the solvated liquid crystal molecules in the second part 112 in the second Polaroid 102; the arrangement direction of the solvated liquid crystal molecules in the first part 111 in the first Polaroid 101 is perpendicular to the arrangement direction of the solvated liquid crystal molecules in the first part 111 in the second Polaroid 102. Example 2

[0062] Fig. 4 shows a schematic representation of a cross section of a Polaroid provided in Embodiment 2 of the present application. Referring to Fig. 4, Embodiment 2 of the present application provides, in a first aspect, a Polaroid 10, wherein the Polaroid 10 comprises a diametrically oriented material 12 and a one-piece structured substrate material 11; wherein the one-piece structured substrate material 11 comprises solvated liquid crystal molecules, the part of the substrate material 11 in which the diametrically oriented material 12 is dispersed is a first part 111, and the part of the substrate material 11 in which the diametrically oriented material 12 is not dispersed is a second part 112, wherein the first part 111 is arranged on one side of the second part 112; wherein the polaroid 10 has a polarization section M1 and a compensation section M2, the first part 111 and the diametrically oriented material 12 form the polarization section M1 and the second part 112 is the compensation section M2.

[0063] It should be noted that the polarizer 10 provided in Embodiment 2 of the present application has a similar structure to the polarizer 10 provided in Embodiment 1 of the present application, and in Embodiment 2 of the present application, the same parts are not repeated.

[0064] The polarizer 10 according to Embodiment 2 of the present application further comprises a substrate 14, wherein the compensation section M2 is provided on a surface of the substrate 14, and the polarization section M1 is provided on the side of the compensation section M2 facing away from the substrate 14.

[0065] In the polarizer 10 provided in the embodiment of the present application, the substrate 14 can serve as a support film layer for the compensation section M2 to facilitate the coating of a solvated liquid crystal layer consisting of the second part 112 and the first part 111. Furthermore, the substrate 14 can also protect a side of the compensation section M2 facing away from the polarization section M1. Since the polarizer 10 itself includes the substrate 14 as a support film layer, the polarizer 10 can be manufactured independently of the array base plate 21 or the color film base plate 22. This increases the application range and the degree of freedom of design of the polarizer 10.

[0066] Fig. 5 shows a schematic diagram of a cross section of a display panel provided in Embodiment 2 of the present application. Referring to Fig. 5, Embodiment 2 of the present application provides a display panel comprising at least one Polaroid 10 according to any one of the preceding claims, the display panel further comprising an array base plate 21, a color film base plate 22, and a liquid crystal layer 23 disposed between the array base plate 21 and the color film base plate 22, wherein the liquid crystal molecules in the liquid crystal layer 23 have birefringent properties, wherein at least one Polaroid 10 comprises: a first Polaroid 101 provided on a side of the array base plate 21 facing away from the liquid crystal layer 23, the polarizing section M1 in the first Polaroid 101 being provided on a side of the compensating section M2 facing away from the array base plate 21;and / or a second polaroid 102 provided on a side of the color film base plate 23 facing away from the liquid crystal layer 23, wherein the polarizing section M1 in the second polaroid 102 is provided on a side of the compensating section M2 facing away from the color film base plate 22;

[0067] It should be noted that the display panel provided in Embodiment 2 of the present application has a similar structure to the display panel provided in Embodiment 1 of the present application, and in Embodiment 2 of the present application, the same parts are not repeated.

[0068] In some embodiments of the present application, the first Polaroid 101 further comprises a first substrate 141, wherein the first substrate 141 is provided on a side of the array base plate 21 facing away from the liquid crystal layer 23, and the compensation section M2 in the first Polaroid 101 is provided on the surface of a side of the first substrate 141 facing away from the array base plate 21; the second Polaroid 102 further comprises a second substrate 142, wherein the second substrate 142 is provided on a side of the color film base plate 22 facing away from the liquid crystal layer 23, and the compensation section M2 in the second Polaroid 102 is provided on the surface of a side of the second substrate 142 facing away from the color film base plate 22.

[0069] In some embodiments of the present application, the first substrate 141 in the first Polaroid 101 is bonded by optical adhesive to the surface of a side of the array base plate 21 facing away from the liquid crystal layer 23, and the second substrate 142 in the second Polaroid 102 is bonded by optical adhesive to the surface of a side of the color film base plate 22 facing away from the liquid crystal layer 23.

[0070] In a third aspect, Embodiment 2 of the present application further provides a Polaroid 10 manufacturing method for manufacturing a Polaroid 10 according to any one of the preceding claims. With reference to Fig. 3 to 5, the manufacturing process for Polaroid 10 includes the following steps: Step S01, Step S02.

[0071] Here, step S01 comprises: providing a carrier film layer, wherein a one-piece structured substrate material 11 is formed by directional coating on the carrier film layer, wherein the one-piece structured substrate material 11 comprises solvated liquid crystal molecules; Here, step S02 comprises: coating a surface of the one-piece structured substrate material 11 with a diametrically oriented material 12, wherein the dispersion time of the diametrically oriented material 12 is controlled such that the diametrically oriented material 12 is dispersed in the first part 111 of the substrate material 11, so that the diametrically oriented material 12 is not dispersed in the second part 112 of the substrate material 11; wherein the first part 111 is arranged on one side of the second part 112, the polaroid having a polarization section M1 and a compensation section M2, wherein the first part 111 and the diametrically oriented material 12 comprise the polarization section M1 and the second part 112 is the compensation section M2.

[0072] In some embodiments of the present application, the carrier film layer is the first substrate 141 or the second substrate 142.

[0073] In some embodiments of the present application, the diametrically oriented material 12 comprises iodide ions and complexes of iodide ions, the sum of the thicknesses of the second part 112 and the first part 111 is greater than or equal to 15 µm, and the dispersion time of the diametrically oriented material 12 is 20-100 seconds.

[0074] In some embodiments of the present application, the thickness of the first part 111 is greater than or equal to 7 µm and the thickness of the second part 112 is greater than or equal to 0.5 µm.

[0075] In some embodiments of the present application, the solvated liquid crystal layer is coated in the same direction as the direction of the light-absorbing axis of the polarizing portion M1. Furthermore, in providing the first Polaroid 101 and the second Polaroid 102, the arrangement direction of the solvated liquid crystal molecules in the second portion 112 in the first Polaroid 101 is perpendicular to the arrangement direction of the solvated liquid crystal molecules in the second portion 112 in the second Polaroid 102; the arrangement direction of the solvated liquid crystal molecules in the first portion 111 in the first Polaroid 101 is perpendicular to the arrangement direction of the solvated liquid crystal molecules in the first portion 111 in the second Polaroid 102.

[0076] In summary, the present application provides a polaroid, a manufacturing method therefor, and a display panel, wherein the polaroid comprises a diametrically oriented material and a one-piece structured substrate material; wherein the one-piece structured substrate material comprises solvated liquid crystal molecules, the part of the substrate material in which the diametrically oriented material is dispersed is a first part, the part of the substrate material in which the diametrically oriented material is not dispersed is a second part, and the first part is arranged on one side of the second part; wherein the polaroid has a polarizing section and a compensating section, wherein the first part and the diametrically oriented material form the polarizing section and the second part is the compensating section.Since, in the polaroid provided in the embodiment, the substrate material comprises solvated liquid crystal molecules, it is possible for the substrate material itself to have a compensation function, so that the second part of the substrate material, which is not dispersed with a diametrically oriented material, forms a compensation section; since the diametrically oriented material is dispersed in the first part of the substrate material, it is possible to form a polarization section by the first part and the diametrically oriented material.And since the polarizing portion corresponds to the first part of the substrate material, the compensating portion corresponds to the second part of the substrate material, and the first part and the second part are both integrally formed, the problems of the complicated preparation process and the increased thickness of the Polaroid caused by the need to form a film separately for the polarizing portion and the compensating portion can be effectively avoided, thereby simplifying the complicated preparation process of the Polaroid and reducing the thickness of the Polaroid.

[0077] The foregoing describes in detail a polarizer, a manufacturing method thereof, and a display panel provided by the embodiments of the present application. Specific examples are provided herein to illustrate the principles and embodiments of the present application, and the disclosure of the embodiments is provided only to better understand the methods of the present application and its core concepts. At the same time, those skilled in the art may make changes to the specific embodiments and the scope of application based on the idea of ​​this application. In summary, the content of this description should not be construed as a limitation of this application.

Claims

[1] Polaroid, characterized by that the Polaroid comprises a diametrically oriented material and a one-piece structured substrate material; wherein the one-piece structured substrate material comprises solvated liquid crystal molecules, wherein the part of the substrate material in which the diametrically oriented material is dispersed is a first part, wherein the part of the substrate material in which the diametrically oriented material is not dispersed is a second part, and wherein the first part is arranged on one side of the second part; wherein the polaroid has a polarizing section and a compensating section, wherein the first part and the diametrically oriented material form the polarizing section and the second part is the compensating section. [2] Polaroid according to claim 1, characterized bythat the solvated liquid crystal molecules in the second part are arranged in the same direction as the solvated liquid crystal molecules in the first part. [3] Polaroid according to claim 2, characterized by that the diametrically oriented material comprises iodide ions and complexes of iodide ions. [4] Polaroid according to claim 3, characterized by that the sum of the thicknesses of the second part and the first part is greater than or equal to 15 µm. [5] Polaroid according to claim 4, characterized by that the thickness of the first part is greater than or equal to 7 µm and the thickness of the second part is greater than or equal to 0.5 µm. [6] Polaroid according to claim 1, characterized by that the polaroid comprises a support layer, wherein the support layer is provided on a side of the polarization section facing away from the compensation section. [7] Display panel, characterized bythat the display panel comprises at least one Polaroid according to one of claims 1 to 6, wherein the display panel further comprises an array base plate, a color film base plate and a liquid crystal layer arranged between the array base plate and the color film base plate, wherein the liquid crystal molecules in the liquid crystal layer have birefringent properties, at least one Polaroid comprising: a first polaroid provided on a side of the array base plate facing away from the liquid crystal layer, the polarizing section in the first polaroid being provided on a side of the compensation section facing away from the array base plate; and / or a second polaroid provided on a side of the color film base plate facing away from the liquid crystal layer, wherein the polarizing section in the second polaroid is provided on a side of the compensation section facing away from the color film base plate. [8] Display panel according to claim 7, characterized bythat the display panel comprises the first Polaroid and the second Polaroid, wherein the direction of the slow axis of the compensation section in the first Polaroid is perpendicular to the direction of the slow axis of the compensation section in the second Polaroid, the direction of the fast axis of the compensation section in the first Polaroid is perpendicular to the direction of the fast axis of the compensation section in the second Polaroid, and the direction of the light transmission axis of the polarization section in the first Polaroid is perpendicular to the direction of the light transmission axis of the polarization section in the second Polaroid. [9] Display panel according to claim 8, characterized bythat the compensation section in the first polaroid is provided on a surface of a side of the array base plate facing away from the liquid crystal layer, and the compensation section in the second polaroid is provided on a surface of a side of the color film base plate facing away from the liquid crystal layer. [10] Display panel according to claim 8, characterized bythat the first Polaroid further comprises a first substrate, wherein the first substrate is provided on a side of the array base plate facing away from the liquid crystal layer, and the compensation section in the first Polaroid is provided on the surface of a side of the first substrate facing away from the array base plate; that the second Polaroid further comprises a second substrate, wherein the second substrate is provided on a side of the color film base plate facing away from the liquid crystal layer, and the compensation section in the second Polaroid is provided on the surface of a side of the second substrate facing away from the color film base plate. [11] Manufacturing process for Polaroid, characterized by that the manufacturing process includes the following steps: Providing a carrier film layer, wherein a one-piece structured substrate material is formed by directional coating on the carrier film layer, wherein the one-piece structured substrate material comprises solvated liquid crystal molecules; Coating a surface of the one-piece structured substrate material with a diametrically oriented material, wherein the dispersion time of the diametrically oriented material is controlled such that the diametrically oriented material is dispersed in the first part of the substrate material such that the diametrically oriented material is not dispersed in the second part of the substrate material; wherein the first part is arranged on one side of the second part, the polaroid having a polarizing section and a compensating section, the first part and the diametrically oriented material comprising the polarizing section and the second part being the compensating section. [12] Polaroid manufacturing method according to claim 11, characterized by that the diametrically oriented material comprises iodide ions and complexes of iodide ions, the sum of the thicknesses of the second part and the first part is greater than or equal to 15 µm and the dispersion time of the diametrically oriented material is 20-100 seconds. [13] Polaroid manufacturing method according to claim 12, characterized by that the thickness of the first part is greater than or equal to 7 µm and the thickness of the second part is greater than or equal to 0.5 µm.

Images