CN114106523A - High-brightness high-contrast high-reducibility display membrane and preparation method thereof - Google Patents
High-brightness high-contrast high-reducibility display membrane and preparation method thereof Download PDFInfo
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- CN114106523A CN114106523A CN202111385328.6A CN202111385328A CN114106523A CN 114106523 A CN114106523 A CN 114106523A CN 202111385328 A CN202111385328 A CN 202111385328A CN 114106523 A CN114106523 A CN 114106523A
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- 239000012528 membrane Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000000049 pigment Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 22
- 239000002131 composite material Substances 0.000 claims abstract description 17
- 229920005989 resin Polymers 0.000 claims abstract description 16
- 239000011347 resin Substances 0.000 claims abstract description 16
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 15
- 229920005990 polystyrene resin Polymers 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims abstract description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 10
- 239000010703 silicon Substances 0.000 claims abstract description 10
- 239000002270 dispersing agent Substances 0.000 claims abstract description 8
- 230000002745 absorbent Effects 0.000 claims abstract description 7
- 239000002250 absorbent Substances 0.000 claims abstract description 7
- 239000003960 organic solvent Substances 0.000 claims abstract description 7
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 5
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims description 29
- 238000010438 heat treatment Methods 0.000 claims description 16
- 239000002994 raw material Substances 0.000 claims description 15
- 239000004945 silicone rubber Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 7
- 229920002050 silicone resin Polymers 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- 239000000084 colloidal system Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims 1
- 230000003746 surface roughness Effects 0.000 abstract description 4
- 238000012634 optical imaging Methods 0.000 abstract description 3
- 210000004379 membrane Anatomy 0.000 description 24
- 239000000047 product Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 239000012467 final product Substances 0.000 description 3
- -1 polyethylene terephthalate Polymers 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 125000003011 styrenyl group Chemical class [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 210000002469 basement membrane Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012769 display material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2425/02—Homopolymers or copolymers of hydrocarbons
- C08J2425/04—Homopolymers or copolymers of styrene
- C08J2425/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a high-brightness high-contrast high-reducibility display membrane and a preparation method thereof, and the display membrane comprises a base membrane and a composite membrane layer, wherein the composite membrane layer is prepared from the following components, by weight, 0.01-2% of an organic silicon resin, 0.5-5% of a modified polystyrene resin, 0.02-2% of a silicon rubber, 0.01-1% of an antioxidant, 0.01-2% of a dispersant, 0.01-2% of an ultraviolet absorbent, 0.05-1% of a black fluorescent pigment, 0.01-1% of a blue fluorescent pigment, 0.01-1% of a yellow fluorescent pigment, and the balance of an organic solvent. According to the optical imaging principle, the surface roughness of material particles in the formula is changed by combining the refraction and reflection principles of light rays, and the refractive indexes of particles with different particle diameters are different, so that the prepared material meets the requirements of a display line, particularly the laser display industry, on high brightness uniformity, good color reducibility and high contrast.
Description
Technical Field
The invention relates to the technical field of laser and liquid crystal display, in particular to a high-brightness high-contrast high-reducibility display membrane and a preparation method thereof.
Background
The traditional display material at present mainly comprises a scattering material and a color material, wherein the scattering material mainly improves the light haze and the screen brightness uniformity; the color material mainly improves the color reducibility and contrast of the material. The scattering material mainly comprises polymethyl methacrylate scattering resin materials, modified polycarbonate scattering resin materials, polyacrylate scattering resin materials and organic silicon resin scattering materials, and is mainly characterized in that the scattering material has a scattering effect under a light source, but the film has low brightness and low uniformity, poor color reducibility, low contrast ratio and other bottlenecks which are difficult to meet the requirements of high-end display liquid crystal and laser display industries.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a display membrane with high brightness, high contrast and high reducibility and a preparation method thereof. The method solves the technical bottlenecks of low brightness, low uniformity, poor color reducibility and low contrast of the membrane.
According to the optical imaging principle, the surface roughness of the particles of the material in the formula is changed by combining the refraction and reflection principles of light rays, and the refractive indexes of the particles with different particle diameters are different, so that the prepared material meets the requirements of the display industry, particularly the laser display industry, on high brightness uniformity, good color reducibility and high contrast.
In order to achieve the technical effects, the invention adopts the following technical scheme:
a display membrane with high brightness, high contrast and high reducibility comprises a base membrane and a composite membrane layer, wherein the composite membrane layer is prepared from 0.01-2 wt% of organic silicon resin, 0.5-5 wt% of modified polystyrene resin, 0.02-2 wt% of silicone rubber, 0.01-1 wt% of antioxidant, 0.01-2 wt% of dispersant, 0.01-2 wt% of ultraviolet absorbent, 0.05-1 wt% of black fluorescent pigment, 0.01-1 wt% of blue fluorescent pigment, 0.01-1 wt% of yellow fluorescent pigment and the balance of organic solvent.
The further technical scheme is that the composite material film layer comprises, by weight, 0.02% -1% of organic silicon resin, 0.5% -2% of modified polystyrene resin, 0.02% -1% of silicone rubber, 0.02% -1% of antioxidant, 0.01% -1% of dispersant, 0.01% -1% of ultraviolet absorbent, 0.05% -1% of black fluorescent pigment, 0.01% -0.05% of blue fluorescent pigment, 0.01% -0.05% of yellow fluorescent pigment, and the balance of organic solvent.
The modified polystyrene resin is specifically prepared by blending polystyrene resin and a PP material.
The further technical proposal is that the material of the basement membrane is selected from any one of PC, PET and PMMA.
The further technical proposal is that the particle sizes of the organic silicon resin powder, the modified polystyrene resin powder and the silicon rubber are controlled between 0.1 micron and 20 microns.
Furthermore, the surface forms of the organic silicon resin powder, the modified polystyrene resin powder and the silicon rubber powder are spherical or elliptical, and the surface roughness is controlled to be nano-scale.
The further technical proposal is that the grain size refractive indexes of the organic silicon resin powder, the modified polystyrene resin powder and the silicon rubber powder are controlled to be 1.1 to 2.
The further technical proposal is that the grain size refractive indexes of the organic silicon resin powder, the modified polystyrene resin powder and the silicon rubber powder are controlled to be 1.39 to 1.65.
Wherein the refractive indexes of the organic silicon resin powder, the modified polystyrene resin powder and the silicon rubber powder are all different.
The further technical proposal is that the organic solvent is acrylic transparent colloid.
The invention also provides a preparation method of the high-brightness high-contrast high-reducibility display membrane, which comprises the following steps: (1) adding all the raw materials into a reaction container according to the mass ratio; (2) placing the reaction vessel filled with the raw materials in a magnetic stirrer with a heating function, and heating and stirring the reaction vessel to uniformly mix the raw materials to obtain a first solution; (3) forming a film on the base film by using a film scraper; (4) and (4) curing the product obtained in the step (3) through a UV lamp to obtain a final finished product.
The further technical scheme is that the temperature of the magnetic stirrer is set to be 80-250 ℃, the stirring time is 30-90min, and the rotating speed of the magnetons is 50-1000 r/min.
The further technical proposal is that the temperature of the magnetic stirrer is set to be 100-.
The further technical proposal is that the wavelength of the UV lamp is controlled between 300 nanometers and 450 nanometers.
Compared with the prior art, the invention has the following beneficial effects: the preparation method provided by the invention changes the surface roughness of the material particles in the formula according to the optical imaging principle and combines the refraction and reflection principles of light, and the refractive indexes of the particles with different particle diameters are different, so that the prepared material meets the requirements of high brightness uniformity, good color reducibility and high contrast of display lines, particularly the laser display industry.
Detailed Description
The invention will be further explained and illustrated with reference to specific examples.
Example 1
A high-brightness high-contrast high-reducibility display membrane comprises a base membrane and a composite material membrane layer, wherein the composite material membrane layer is prepared from the following components in percentage by weight: 0.05%, dispersant: 0.1 percent, 0.02 percent of ultraviolet absorbent, 0.05 percent of black fluorescent pigment, 0.01 percent of blue fluorescent pigment, 0.05 percent of yellow fluorescent pigment and the balance of solvent: acrylic series UV colloids. Wherein the refractive index of the silicone resin powder is 1.49, the refractive index of the modified styrene resin powder is 1.56, and the refractive index of the silicone rubber powder is 1.53.
A preparation method of a high-brightness high-contrast high-reducibility display membrane comprises the following steps: (1) adding all the raw materials into a reaction container according to the mass ratio; (2) placing a reaction vessel containing raw materials in a magnetic stirrer with a heating function, heating and stirring to uniformly mix the raw materials to obtain a first solution, wherein the heating temperature is set to 120 ℃, the heating time is set to 60min, and the rotating speed is set to 250 r/min; (3) forming a film on the base film by using a film scraper; wherein the base film is a polyethylene terephthalate film; (4) and (4) curing the product obtained in the step (3) through a UV lamp to obtain a final finished product, wherein the wavelength of the UV lamp is 300 nanometers.
The final product prepared in this example had a thickness of 0.5mm, wherein the base film thickness was 0.25mm, the composite film thickness was 0.25mm, the sample transmittance was 70%, the luminance uniformity was 90%, the color temperature difference was 191K, and the dark room contrast was 1582: 1.
example 2
A high-brightness high-contrast high-reducibility display membrane comprises a base membrane and a composite material membrane layer, wherein the composite material membrane layer is prepared from the following components in percentage by weight: 0.06%, dispersant: 0.08 percent of pigment, 0.03 percent of ultraviolet absorbent, 0.05 percent of black fluorescent pigment, 0.015 percent of blue fluorescent pigment, 0.05 percent of yellow fluorescent pigment and the balance of solvent: acrylic series UV colloids. Wherein the refractive index of the silicone resin powder is 1.49, the refractive index of the modified styrene resin powder is 1.56, and the refractive index of the silicone rubber powder is 1.53.
A preparation method of a high-brightness high-contrast high-reducibility display membrane comprises the following steps: (1) adding all the raw materials into a reaction container according to the mass ratio; (2) placing a reaction vessel containing raw materials in a magnetic stirrer with a heating function, heating and stirring to uniformly mix the raw materials to obtain a first solution, wherein the heating temperature is set to 150 ℃, the heating time is set to 40min, and the rotating speed is set to 300 r/min; (3) forming a film on the base film by using a film scraper; wherein the base film is a polyethylene terephthalate film; (4) and (4) curing the product obtained in the step (3) through a UV lamp to obtain a final finished product, wherein the wavelength of the UV lamp is 400 nanometers.
The final product prepared in this example had a thickness of 0.4mm, where the base film thickness was 0.25mm, the composite film thickness was 0.15mm, the sample transmittance was 75%, the brightness uniformity was 91%, the color temperature difference was 161K, the dark room contrast was 1566: 1.
comparative example 1
A high-brightness high-contrast high-reducibility display membrane comprises a base membrane and a composite material membrane layer, wherein the composite material membrane layer is prepared from the following components in percentage by weight: 0.06%, dispersant: 0.08 percent of pigment, 0.03 percent of ultraviolet absorbent, 0.05 percent of black fluorescent pigment, 0.015 percent of blue fluorescent pigment, 0.05 percent of yellow fluorescent pigment and the balance of solvent: acrylic series UV colloids. Wherein the refractive index of the silicone resin powder is 1.52, the refractive index of the modified styrene resin powder is 1.55, and the refractive index of the silicone rubber powder is 1.54.
A preparation method of a high-brightness high-contrast high-reducibility display membrane comprises the following steps: (1) adding all the raw materials into a reaction container according to the mass ratio; (2) placing a reaction vessel containing raw materials in a magnetic stirrer with a heating function, heating and stirring to uniformly mix the raw materials to obtain a first solution, wherein the heating temperature is set to 150 ℃, the heating time is set to 40min, and the rotating speed is set to 300 r/min; (3) forming a film on the base film by using a film scraper; wherein the base film is a polyethylene terephthalate film; (4) and (4) curing the product obtained in the step (3) through a UV lamp to obtain a final finished product, wherein the wavelength of the UV lamp is 400 nanometers.
The final product prepared in this example had a thickness of 0.5mm, wherein the base film thickness was 0.25mm, the composite film layer thickness was 0.15mm, the sample transmittance was 60%, the luminance uniformity was 80%, the color temperature difference was 300K, the dark room contrast was 1350: 1.
by the above specific examples, the influence of the refractive index of the particles having different particle diameters on the display effect can be reflected. The refractive index of the material determines the display effect of the film, and the prepared material meets the requirements of display lines, particularly the laser display industry, on high brightness uniformity, good color reducibility and high contrast.
Although the present invention has been described herein with reference to the illustrated embodiments thereof, which are intended to be preferred embodiments of the present invention, it is to be understood that the invention is not limited thereto, and that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure.
Claims (9)
1. The display membrane with high brightness, high contrast and high reducibility is characterized by comprising a base membrane and a composite material membrane layer, wherein the composite material membrane layer is prepared from the following components, by weight, 0.01% -2% of an organic silicon resin, 0.5% -5% of a modified polystyrene resin, 0.02% -2% of silicon rubber, 0.01% -1% of an antioxidant, 0.01% -2% of a dispersing agent, 0.01% -2% of an ultraviolet absorbent, 0.05% -1% of a black fluorescent pigment, 0.01% -1% of a blue fluorescent pigment, 0.01% -1% of a yellow fluorescent pigment and the balance of an organic solvent.
2. The display membrane with high brightness, high contrast and high reducibility as claimed in claim 1, wherein the composite material comprises, by weight, 0.02% -1% of a silicone resin, 0.5% -2% of a modified polystyrene resin, 0.02% -1% of a silicone rubber, 0.02% -1% of an antioxidant, 0.01% -1% of a dispersant, 0.01% -1% of an ultraviolet absorber, 0.05% -1% of a black fluorescent pigment, 0.01% -0.05% of a blue fluorescent pigment, 0.01% -0.05% of a yellow fluorescent pigment, and the balance of an organic solvent.
3. The high brightness high contrast high reduction display film according to claim 1, wherein the material of said base film is selected from any one of PC, PET, PMMA.
4. The display film of claim 1, wherein the particle sizes of the silicone resin powder, the modified polystyrene resin powder and the silicone rubber powder are controlled to be 0.1 to 20 μm.
5. The display film of claim 1, wherein the refractive indices of the silicone resin powder, the modified polystyrene resin powder and the silicone rubber powder are controlled to be 1.1 to 2.
6. The high brightness high contrast high reducing display film according to claim 1, wherein said organic solvent is an acrylic transparent colloid.
7. A method for preparing a high brightness high contrast high reduction display film according to any one of claims 1 to 6, comprising the steps of: (1) adding all the raw materials into a reaction container according to the mass ratio; (2) placing the reaction vessel filled with the raw materials in a magnetic stirrer with a heating function, and heating and stirring the reaction vessel to uniformly mix the raw materials to obtain a first solution; (3) forming a film on the base film by using a film scraper; (4) and (4) curing the product obtained in the step (3) through a UV lamp to obtain a final finished product.
8. The method for preparing a display film with high brightness, high contrast and high reducibility according to claim 7, wherein the temperature of the magnetic stirrer is set to 80-250 ℃, the stirring time is 30-90min, and the rotation speed of the magnetons is 50-1000 r/min.
9. The method of claim 7, wherein the UV wavelength is controlled to be 300 nm to 450 nm.
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| CN202111385328.6A CN114106523A (en) | 2021-11-22 | 2021-11-22 | High-brightness high-contrast high-reducibility display membrane and preparation method thereof |
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| CN202111385328.6A CN114106523A (en) | 2021-11-22 | 2021-11-22 | High-brightness high-contrast high-reducibility display membrane and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540289A (en) * | 2011-12-31 | 2012-07-04 | 宁波长阳科技有限公司 | Optical diffusion film and preparation method thereof |
| CN109031487A (en) * | 2018-09-28 | 2018-12-18 | 武汉华星光电技术有限公司 | Diffusion barrier and preparation method thereof |
| CN113376722A (en) * | 2021-06-21 | 2021-09-10 | 北京航空航天大学 | Light diffusion film and preparation method thereof |
-
2021
- 2021-11-22 CN CN202111385328.6A patent/CN114106523A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540289A (en) * | 2011-12-31 | 2012-07-04 | 宁波长阳科技有限公司 | Optical diffusion film and preparation method thereof |
| CN109031487A (en) * | 2018-09-28 | 2018-12-18 | 武汉华星光电技术有限公司 | Diffusion barrier and preparation method thereof |
| CN113376722A (en) * | 2021-06-21 | 2021-09-10 | 北京航空航天大学 | Light diffusion film and preparation method thereof |
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Application publication date: 20220301 |