CN111019671A - Liquid crystal mixture, liquid crystal panel and preparation method thereof - Google Patents
Liquid crystal mixture, liquid crystal panel and preparation method thereof Download PDFInfo
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- CN111019671A CN111019671A CN201911274241.4A CN201911274241A CN111019671A CN 111019671 A CN111019671 A CN 111019671A CN 201911274241 A CN201911274241 A CN 201911274241A CN 111019671 A CN111019671 A CN 111019671A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
- C09K19/46—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing esters
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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
Abstract
The invention discloses a liquid crystal mixture, a liquid crystal panel and a preparation method thereof. When the liquid crystal mixture is used for preparing a vertical arrangement type liquid crystal panel with stable polymer, the polymerization time of polymerizable monomers can be shortened, the processing time is shortened, meanwhile, the formed polymer film is compact in quality and small in surface roughness, and the prepared liquid crystal panel is better in performance.
Description
Technical Field
The application relates to the technical field of display, in particular to a liquid crystal mixture, a liquid crystal panel and a preparation method thereof.
Background
Thin film transistor liquid crystal displays (TFT-LCDs) are widely used due to their advantages of light weight, low power consumption, good image quality, and the like. In recent years, various liquid crystal displays having a wide viewing angle, high contrast ratio and high image quality have been developed. Liquid crystal displays have become an indispensable part of human life. Common display modes include TN/IPS/VA type, wherein the VA type is also classified into MVA/PVA/PSVA and the like. Among them, MVA type has a problem of insufficient contrast and low transmittance, PVA type has a problem of slow response time, and PSVA (polymer-stabilized vertical alignment) has excellent characteristics of fast response, high contrast, and high transmittance, so that the PSVA mode is still preferred among large-sized LCD technologies.
In the PSVA technology, the liquid crystal medium composition is generally composed of a negative liquid crystal material and a polymerizable monomer that undergoes a polymerization reaction under ultraviolet light, and in the PSVA process, the polymerizable monomer undergoes a phase separation from the liquid crystal medium and undergoes a polymerization reaction on the surface of the alignment film under the condition of ultraviolet light irradiation, thereby forming polymer particles. However, in order to increase the production capacity of the display panel, the ultraviolet light irradiation time needs to be further shortened.
Disclosure of Invention
The invention provides a liquid crystal composition, which can greatly reduce the UV illumination time in a PSVA process, and the quality of a prepared liquid crystal panel is better.
In order to solve the above-mentioned problems, in a first aspect, the present invention provides a liquid crystal mixture comprising negative liquid crystal molecules and a polymerizable monomer, the polymerizable monomer having a structure represented by the following formula (1):
wherein the A ring is selected from a benzene ring, a cyclohexane ring, and a naphthalene ring;
the B ring is a benzofuran ring;
the P group is a group capable of undergoing polymerization reaction, m and n are respectively and independently 1 or 2, m and n are not 1 at the same time, and m + n P groups are the same or different;
the R groups are selected from alkyl, halogenated alkyl, alkoxy and halogen, a and b are integers which are more than or equal to 0, the sum of a and m is less than or equal to 5, the sum of b and n is less than or equal to 5, and a and b R groups are the same or different.
Further, the P group is selected from the group consisting of acrylate, methacrylate, vinyl, vinyloxy, and epoxyalkyl groups.
Further, the structure of the polymerizable monomer is represented by the following formula (2):
wherein each of the 3P groups is independently selected from an acrylate group, a methacrylate group, a vinyl group, a vinyloxy group, or an epoxyalkyl group, and the 3P groups are the same or different.
Further, the 3P groups are all methacrylate groups.
In a second aspect, the present invention further provides a method for manufacturing a liquid crystal panel, where the method includes:
s01: sequentially forming a first electrode and a first alignment film on a first substrate;
s02: sequentially forming a second electrode and a second alignment film on the second substrate;
s03: forming a liquid crystal mixture layer on the first alignment film on the first substrate, and assembling the second substrate and the first substrate into a cell,
wherein the liquid crystal mixture layer includes negative liquid crystal molecules and a polymerizable monomer, the polymerizable monomer having a structure represented by the following formula (1):
wherein the A ring is selected from a benzene ring, a cyclohexane ring, and a naphthalene ring;
the B ring is a benzofuran ring;
the P group is a group capable of undergoing polymerization reaction, m and n are respectively and independently 1 or 2, m and n are not 1 at the same time, and m + n P groups are the same or different;
the R groups are selected from alkyl, halogenated alkyl, alkoxy and halogen, a and b are integers which are more than or equal to 0, the sum of a and m is less than or equal to 5, the sum of b and n is less than or equal to 5, and a and b R groups are the same or different.
S04: and applying voltage to the first electrode and the second electrode, irradiating ultraviolet light to the liquid crystal mixture layer at the same time to form a pre-tilt angle of the negative liquid crystal molecules, performing polymerization reaction on the polymerizable monomer, respectively forming a first polymer layer on the first alignment film, and forming a second polymer layer on the second alignment film.
Further, the wavelength of the ultraviolet light is 300-400 nm.
Further, the structure of the polymerizable monomer is represented by the following formula (2):
wherein each of the 3P groups is independently selected from an acrylate group, a methacrylate group, a vinyl group, a vinyloxy group, or an epoxyalkyl group, and the 3P groups are the same or different.
Further, the content of the polymerizable monomer in the liquid crystal mixture layer is 0.01 wt% to 1 wt%.
Further, the polymerizable monomer is a mixture including at least two compounds represented by the formula (1).
In a third aspect, the invention further provides a liquid crystal panel, and the liquid crystal panel is prepared by the preparation method of the liquid crystal panel.
Has the advantages that: the invention provides a liquid crystal mixture which comprises negative liquid crystal molecules and a polymerizable monomer, wherein a benzofuran ring structure is introduced into the structure of the polymerizable monomer, so that the melting point of the liquid crystal mixture can be reduced, the solubility of the liquid crystal mixture in liquid crystal is optimized, pi electron conjugation of the ring structure is increased, and ultraviolet absorption is increased, so that the polymerization reaction rate in PSVA is increased, the UV time is reduced, and the productivity is improved. Meanwhile, the polymerizable monomer provided by the invention has three polymerizable groups, and due to the change of reaction contact points, the surface of a polymer formed by the polymerizable monomer is more uniform, the particles of the protrusions are smaller, the risk of forming broken bright points of the liquid crystal panel is reduced, and in addition, the film quality of the formed polymer is tighter, so that the voltage holding rate of the liquid crystal panel is more excellent.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic text flow chart of a method for manufacturing a liquid crystal panel according to an embodiment of the present invention;
fig. 2A-2C are schematic structural flow diagrams of a method for manufacturing a liquid crystal panel according to an embodiment of the invention;
FIG. 3 is a representation of a microscopic topography of a surface of a polymer layer in a liquid crystal panel according to an embodiment of the present invention;
FIG. 4 is a micro-topography representation of a polymer layer surface in another liquid crystal panel provided by an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes are not shown in detail to avoid obscuring the description of the invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
In a PSVA-type liquid crystal display panel, the liquid crystal medium composition typically comprises a polymerizable monomer in which the ring system of the mesogenic group is bonded in para position to its adjacent groups (other rings, bridging groups, spacers or polymerizable groups) to form the structures shown in the following formulae (3) and (4):
wherein, P1And P2Represents a polymerizable group, such as typically an acrylate, methacrylate, vinyl, vinyloxy or epoxyalkyl group. However, the polymerizable monomer generally has a high melting point and limited solubility in many liquid crystal mixtures commonly used at present, so that spontaneous crystallization from the mixture is often easy to occur, and the reaction rate of the polymerizable monomer has a certain limitation, which cannot meet the demand of shortening the process time and increasing the throughput of a panel factory.
Based on this, the embodiment of the present invention provides a liquid crystal mixture, which includes negative liquid crystal molecules and a polymerizable monomer, where the structure of the polymerizable monomer is represented by formula (1):
wherein the A ring is selected from a benzene ring, a cyclohexane ring and a naphthalene ring;
the B ring is a benzofuran ring;
the P group is a group capable of undergoing a polymerization reaction, specifically, the P group is a group capable of undergoing a polymerization reaction under light initiation, m and n are respectively and independently 1 or 2, and m and n are not simultaneously 1, that is, the number of the P groups in each polymerizable monomer is at least 3, and m + n P groups are the same or different compared with the existing polymerizable monomers, and have more reaction contact points;
the R groups are selected from alkyl, halogenated alkyl, alkoxy and halogen, a and b are integers which are more than or equal to 0, the sum of a and m is less than or equal to 5, the sum of b and n is less than or equal to 5, and a and b R groups are the same or different.
In this example, the P group is a polymerizable group commonly used in the art, and may be, for example, an acrylate group, a methacrylate group, a vinyl group, a vinyloxy group, or an epoxyalkyl group.
In one embodiment of this embodiment, the a ring is a benzene ring, and the number of R groups on both the a ring and the B ring is 0, the number of polymerizable groups on the a ring is 2, and the number of polymerizable groups on the B ring is 1, i.e., the structure of the polymerizable monomer is represented by formula (2):
wherein, the 3P groups are respectively selected from acrylate group, methacrylate group, vinyl group, ethyleneoxy group and/or epoxyalkyl group, and the 3P groups are the same or different.
Wherein the connecting position of the benzofuran ring and the benzene ring can be on the benzene ring of the benzofuran ring and can also be on the furan ring of the benzofuran ring.
Specific structural formulae of the optional polymerizable monomers in this example are given below by way of example:
wherein 3P groups of the polymerizable monomer A1/A2 are all methacrylate groups.
Another embodiment of the present invention further provides a method for manufacturing a liquid crystal panel, please refer to fig. 1 and fig. 2A-2C, the method includes:
s01: sequentially forming a first electrode 101 and a first alignment film 102 on a first substrate 10, wherein the first substrate 10 may be generally an array substrate, the first electrode 101 may be generally a transparent electrode, and the material of the transparent electrode may be generally indium tin oxide;
s02: sequentially forming a second electrode 201 and a second alignment film 202 on a second substrate 20, wherein the second substrate 20 may be a color film substrate, the second electrode 201 may be a transparent electrode, the transparent electrode may be made of ito (indium tin oxide), and the first alignment film 201 and the second alignment film 202 enable liquid crystal molecules to be arranged vertically to the first substrate 10 and the second substrate 20 when not energized;
s03: a liquid crystal mixture layer 30 is formed on the first alignment film 102 on the first substrate 10, and the second substrate 20 is bonded to the first substrate 10 in pair to form a cell, i.e. the structure shown in fig. 2A is formed,
wherein the liquid crystal mixture layer 30 includes negative liquid crystal molecules 301 and polymerizable monomers 302, and the structure of the polymerizable monomers 302 is represented by formula (1):
wherein the A ring is selected from a benzene ring, a cyclohexane ring and a naphthalene ring;
the B ring is a benzofuran ring;
the P group is a group capable of undergoing polymerization reaction, m and n are respectively and independently 1 or 2, m and n are not 1 at the same time, and m + n P groups are the same or different;
the R groups are selected from alkyl, halogenated alkyl, alkoxy and halogen, a and b are integers which are more than or equal to 0, the sum of a and m is less than or equal to 5, the sum of b and n is less than or equal to 5, and a and b R groups are the same or different.
S04: referring to fig. 2B, a voltage is applied to the first electrode 101 and the second electrode 201, and ultraviolet light is irradiated to the liquid crystal mixture layer 30, the negative liquid crystal molecules 301 form a pre-tilt angle under the action of the electric field between the first electrode 101 and the second electrode 102, the polymerizable monomers 302 perform a polymerization reaction under the irradiation of the ultraviolet light, so as to form the first polymer layer 103 on the first alignment film 102 and the second polymer layer 203 on the second alignment film 202, respectively, that is, the structure shown in fig. 2C is formed.
In this embodiment, the wavelength of the ultraviolet light is 300 to 400 nm.
In this embodiment, the structure of the polymerizable monomer is represented by formula (2):
wherein, the 3P groups are respectively selected from acrylate group, methacrylate group, vinyl group, ethyleneoxy group and/or epoxyalkyl group, and the 3P groups are the same or different.
In this embodiment, the content of the polymerizable monomer in the liquid crystal mixture layer is 0.01 wt% to 1 wt%.
In this embodiment, the polymerizable monomer is a mixture including at least two compounds represented by the formula (1), for example, the aforementioned compound a1 and compound a 2.
The invention further provides a liquid crystal display panel prepared by the preparation method of the liquid crystal panel, and specifically, the polymerizable monomer in the liquid crystal mixture is compound a1, and the content of compound a1 accounts for 0.1 wt% of the total amount of the liquid crystal mixture, so that the liquid crystal display panel ① is prepared.
The liquid crystal panel was also prepared by the above-mentioned method, except that the polymerizable monomer was used compound B1 described below, to prepare a liquid crystal panel ②.
The parameters of the liquid crystal panels ① and ② are compared as follows:
on the first hand, in the preparation process of the liquid crystal panel ①, in step S04, the time for performing ultraviolet light irradiation to initiate polymerization is reduced by about two thirds as compared with the liquid crystal panel ②;
in a second aspect, a scanning electron microscope is used, and microstructure representation is performed on the polymer layers formed by the liquid crystal panels ① and ② under a magnification of 4 ten thousand times, the appearance of the polymer film formed by the liquid crystal panel ① is shown in fig. 3, and the appearance of the polymer film formed by the liquid crystal panel ② is shown in fig. 4, and comparison shows that the polymer surface particles formed by the liquid crystal panel ① are more uniform, the film quality is denser, the polymer particle size is smaller, and the risk of light leakage of liquid crystals around the particles can be effectively reduced;
in the third aspect, VHR (Voltage holding Ratio) measurements were performed on the liquid crystal mixtures of the liquid crystal panels ① and ② before and after the PSVA process, that is, before and after step S04 of the preparation process, and the results are shown in table 1 below:
TABLE 1
| VHR/％ | Before PSVA | After PSVA |
| Liquid crystal panel ① | 98.31 | 98.50 |
| Liquid crystal panel ② | 98.40 | 97.00 |
As can be seen from the data in the above table, before PSVA, the VHR of the two is not much different, but after PSVA, the VHR of the liquid crystal mixture in the liquid crystal panel ① is larger, i.e., the liquid crystal panel ① has better reliability.
It should be noted that, in the above-mentioned embodiment of the liquid crystal panel, only the above-mentioned structure is described, and it is understood that, in addition to the above-mentioned structure, the liquid crystal panel of the embodiment of the present invention may further include any other necessary structure as needed, and the specific structure is not limited herein.
The liquid crystal mixture and the liquid crystal panel and the preparation method thereof provided by the embodiment of the invention are described in detail above, and the principle and the embodiment of the invention are explained by applying specific examples herein, and the description of the above embodiments is only used to help understanding the method and the core idea of the invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A liquid crystal mixture comprising negative liquid crystal molecules and a polymerizable monomer having a structure represented by the following formula (1):
wherein the A ring is selected from a benzene ring, a cyclohexane ring, and a naphthalene ring;
the B ring is a benzofuran ring;
the P group is a group capable of undergoing polymerization reaction, m and n are respectively and independently 1 or 2, m and n are not 1 at the same time, and m + n P groups are the same or different;
the R groups are selected from alkyl, halogenated alkyl, alkoxy and halogen, a and b are integers which are more than or equal to 0, the sum of a and m is less than or equal to 5, the sum of b and n is less than or equal to 5, and a and b R groups are the same or different.
2. Liquid-crystal mixture according to claim 1, characterized in that the P group is chosen from acrylate, methacrylate, vinyl, vinyloxy, and epoxyalkyl groups.
3. The liquid crystal mixture according to claim 1, wherein the polymerizable monomer has a structure represented by the following formula (2):
wherein each of the 3P groups is independently selected from an acrylate group, a methacrylate group, a vinyl group, a vinyloxy group, or an epoxyalkyl group, and the 3P groups are the same or different.
4. A liquid-crystal mixture as claimed in claim 3, characterized in that the 3P groups are each a methacrylate group.
5. A method for manufacturing a liquid crystal panel, the method comprising:
s01: sequentially forming a first electrode and a first alignment film on a first substrate;
s02: sequentially forming a second electrode and a second alignment film on the second substrate;
s03: forming a liquid crystal mixture layer on the first alignment film on the first substrate, and assembling the second substrate and the first substrate into a cell,
wherein the liquid crystal mixture layer includes negative liquid crystal molecules and a polymerizable monomer, the polymerizable monomer having a structure represented by the following formula (1):
wherein the A ring is selected from a benzene ring, a cyclohexane ring, and a naphthalene ring;
the B ring is a benzofuran ring;
the P group is a group capable of undergoing polymerization reaction, m and n are respectively and independently 1 or 2, m and n are not 1 at the same time, and m + n P groups are the same or different;
the R groups are selected from alkyl, halogenated alkyl, alkoxy and halogen, a and b are integers which are more than or equal to 0, the sum of a and m is less than or equal to 5, the sum of b and n is less than or equal to 5, and a and b R groups are the same or different.
S04: and applying voltage to the first electrode and the second electrode, irradiating ultraviolet light to the liquid crystal mixture layer at the same time to form a pre-tilt angle of the negative liquid crystal molecules, performing polymerization reaction on the polymerizable monomer, respectively forming a first polymer layer on the first alignment film, and forming a second polymer layer on the second alignment film.
6. The method of manufacturing a liquid crystal panel according to claim 5, wherein the wavelength of the ultraviolet light is 300 to 400 nm.
7. The method of producing a liquid crystal panel according to claim 5, wherein the structure of the polymerizable monomer is represented by the following formula (2):
wherein each of the 3P groups is independently selected from an acrylate group, a methacrylate group, a vinyl group, a vinyloxy group, or an epoxyalkyl group, and the 3P groups are the same or different.
8. The method of manufacturing a liquid crystal panel according to claim 5, wherein the polymerizable monomer is contained in the liquid crystal mixture layer in an amount of 0.01 wt% to 1 wt%.
9. The liquid crystal mixture according to claim 5, wherein the polymerizable monomer is a mixture comprising at least two compounds represented by the formula (1).
10. A liquid crystal panel produced by the method for producing a liquid crystal panel according to claims 5 to 9.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113249130A (en) * | 2021-05-17 | 2021-08-13 | Tcl华星光电技术有限公司 | Liquid crystal medium composition, display panel and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104364348A (en) * | 2012-06-02 | 2015-02-18 | 默克专利股份有限公司 | Liquid crystal medium |
| CN104793383A (en) * | 2014-01-21 | 2015-07-22 | 默克专利股份有限公司 | Liquid crystal display |
| CN107814783A (en) * | 2016-09-14 | 2018-03-20 | 江苏和成显示科技股份有限公司 | Polymerizable compound and its preparation method and application |
| CN110407783A (en) * | 2018-04-27 | 2019-11-05 | 北京八亿时空液晶科技股份有限公司 | A kind of benzofurans can poly- property compound and its application |
| CN110922987A (en) * | 2018-09-20 | 2020-03-27 | 北京八亿时空液晶科技股份有限公司 | Liquid crystal composition containing benzofuran polymerizable compound and application thereof |
-
2019
- 2019-12-12 CN CN201911274241.4A patent/CN111019671A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104364348A (en) * | 2012-06-02 | 2015-02-18 | 默克专利股份有限公司 | Liquid crystal medium |
| CN104793383A (en) * | 2014-01-21 | 2015-07-22 | 默克专利股份有限公司 | Liquid crystal display |
| CN107814783A (en) * | 2016-09-14 | 2018-03-20 | 江苏和成显示科技股份有限公司 | Polymerizable compound and its preparation method and application |
| CN110407783A (en) * | 2018-04-27 | 2019-11-05 | 北京八亿时空液晶科技股份有限公司 | A kind of benzofurans can poly- property compound and its application |
| CN110922987A (en) * | 2018-09-20 | 2020-03-27 | 北京八亿时空液晶科技股份有限公司 | Liquid crystal composition containing benzofuran polymerizable compound and application thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113249130A (en) * | 2021-05-17 | 2021-08-13 | Tcl华星光电技术有限公司 | Liquid crystal medium composition, display panel and preparation method thereof |
| CN113249130B (en) * | 2021-05-17 | 2023-06-02 | Tcl华星光电技术有限公司 | Liquid crystal medium composition, display panel and preparation method thereof |
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Application publication date: 20200417 |