CN111610589A - Manufacturing method of PVA layer, polarizer, display device and mobile terminal - Google Patents
Manufacturing method of PVA layer, polarizer, display device and mobile terminal Download PDFInfo
- Publication number
- CN111610589A CN111610589A CN202010599318.1A CN202010599318A CN111610589A CN 111610589 A CN111610589 A CN 111610589A CN 202010599318 A CN202010599318 A CN 202010599318A CN 111610589 A CN111610589 A CN 111610589A
- Authority
- CN
- China
- Prior art keywords
- layer
- pva
- polarizer
- display device
- pva layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
- G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
- G02B5/305—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
Abstract
The invention discloses a manufacturing method of a PVA layer, a polaroid, a display device and a mobile terminal. A protective film is arranged in a target area of a transparent PVC film material to prevent the target area from being dyed and losing permeability; after the protective layer is removed, a transparent PVA layer with a target area is formed, and a polarizer for protecting the PVA layer is manufactured, so that the light permeability of the target position is ensured, and the problem of bubble lines at the target position is also avoided.
Description
Technical Field
The invention relates to the technical field of display manufacturing, in particular to a manufacturing method of a PVA layer, a polaroid, a display device and a mobile terminal.
Background
The polaroid is a composite material prepared by compounding stretched polyvinyl alcohol (PVA) film and triacetate cellulose (TAC), and can be widely applied to liquid crystal display screens and realize the characteristics of high brightness and high contrast of liquid crystal display screens. With the rise of the TFT market and a full-screen mobile phone with a touch screen as a mainstream, the technology of the front camera is continuously optimized, and a pore needs to be formed in the polarizer at a position corresponding to the front camera of the mobile phone.
As shown in fig. 1, in the prior art, a polarizer is cut at a punching position, that is, hollowed out, and then the polarizer and a cover plate are attached by using an oca (optically Clear adhesive) optical adhesive to ensure light transmittance at the punching position. In FIG. 1, 8-1 is a conventional optical module, 3-1 is a conventional polarizer, and 2 is an OCA adhesive layer. However, the OCA glue is soft glue and is susceptible to thermal expansion and cold contraction caused by temperature, and particularly when a temperature impact test is carried out on a machine, the problem of bubble lines can occur at the punching position of the cut polaroid filled with the OCA glue.
Disclosure of Invention
The invention aims to overcome the defect that bubble lines appear after OCA filling is carried out at a punching position of a polarizer in the prior art, and provides a manufacturing method of a PVA layer, the polarizer, a display device and a mobile terminal.
The invention solves the technical problems through the following technical scheme:
in a first aspect, the present invention provides a method for manufacturing a PVA layer, the method comprising: obtaining a transparent PVA film material;
arranging a protective layer on a target area of the PVA film to isolate the target area from the outside;
dyeing the PVA film material;
removing the protective layer to form a PVA layer having the target area that is transparent.
Optionally, the protective layer is a PE protective layer.
Optionally, after the step of obtaining the transparent PVA film, the method further comprises:
and (3) carrying out swelling treatment on the PVA film material.
Optionally, the staining comprises iodine treatment.
Optionally, after the step of removing the protective layer, the method for manufacturing the PVA layer further includes the steps of:
and cleaning the PVA layer.
Optionally, the step of washing the PVA layer comprises:
washing the PVA layer with water.
In a second aspect, the present invention provides a polarizer, including the PVA layer manufactured by the method for manufacturing a PVA layer according to the first aspect.
In a third aspect, the present invention provides a display device, which includes an optical module and a light source module, wherein the optical module covers above the light source module, and the optical module includes the polarizer according to the second aspect.
Optionally, the optical module further includes a TFT glass layer, a CF glass layer, an OCA glue layer, and a cover plate layer.
Optionally, the OCA adhesive layer is attached to the upper surface of the polarizer, and the CF glass layer is attached to the lower surface of the polarizer.
In a fourth aspect, the present invention provides a mobile terminal, comprising a camera and the display device according to the third aspect, wherein the camera is disposed below the target area in the display device.
Optionally, the mobile terminal further includes a housing, the camera is embedded in the housing, and the display device is located above the housing.
The positive progress effects of the invention are as follows: the invention provides a manufacturing method of a PVA layer, a polaroid, a display device and a mobile terminal. A protective film is arranged in a target area of a transparent PVC film material to prevent the target area from being dyed and losing permeability; after the protective layer is removed, a transparent PVA layer with a target area is formed, and a polarizer for protecting the PVA layer is manufactured, so that the light permeability of the target position is ensured, and the problem of bubble lines at the target position is also avoided.
Drawings
Fig. 1 is a schematic structural diagram of a display device in the prior art.
Fig. 2 is a flowchart of a method for manufacturing a PVA layer in example 1 of the present invention.
Fig. 3 is a schematic structural diagram of a polarizer in embodiment 2 of the present invention.
Fig. 4 is a schematic structural diagram of a display device according to embodiment 3 of the present invention.
Fig. 5 is a schematic structural diagram of a mobile terminal according to embodiment 4 of the present invention.
Reference numerals: 1-cover plate layer, 2-OCA adhesive layer, 3-1-existing polarizer, 3-2-polarizer, 4-CF glass layer, 5-TFT glass layer, 6-PVA layer, 7-target area, 8-1-existing optical module, 8-2-optical module, 9-camera and 10-shell.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
The embodiment provides a method for manufacturing a PVA layer, which can be applied to mobile terminals such as mobile phones. Referring to fig. 2, the manufacturing method includes the steps of:
step S11, a transparent PVA film is obtained.
The PVA film is also called as a polyvinyl alcohol film, is a white flaky solid conventionally, and is an important chemical raw material for manufacturing polyvinyl acetal, gasoline-resistant pipelines, adhesives and the like. In the embodiment of the present application, the untreated PVA film is transparent and light-permeable.
Wherein, after the step of obtaining the transparent PVA film, the method comprises the following steps: and (3) swelling the PVA film material.
Specifically, after obtaining transparent PVA membrane material, utilize water to expand moist processing to transparent PVA membrane material, the PVA membrane material after the swelling processing has accomplished clean operation, filters the impurity of PVA membrane material.
In step S12, a protective layer is provided on the target area of the PVA film to isolate the target area from the outside.
And arranging a protective film at a preset position of the obtained PVA film, wherein the preset position is a target position, and the target position can be rectangular, square or circular. Those skilled in the art will appreciate that the shape of the target area is not particularly limited. The PVA film material after setting up the protection film will be predetermine the position and keep apart with outside completely, can effectually prevent follow-up dyeing to PVA film material after, thereby this predetermine the position and be dyed influence the light transmissivity of PVA film material at predetermineeing the position.
Wherein the protective layer is a PE protective layer.
Specifically, the target area is the position of punching on PVA layer, at the attached PE protective layer in this position of punching, prevents that the PVA membrane material that the position goes out of punching from adsorbing with the coloring agent, is dyed and loses the light transmissivity.
Step S13, the PVA film is dyed.
And dyeing the PVA film material adhered with the protective film by using a dyeing agent. After the PVA film is dyed, the light transmittance of the rest area of the film is lost except the target area where the protective film is adhered. Therefore, the non-transparent area after dyeing loses the light transmission function, and has the function of polarized light.
In one possible implementation, the dyeing process may be performed with a dye. The PVA film material dyed by the dyeing agent is not easy to obtain the optical characteristics of high transmittance and high polarization degree, but has better high-temperature and high-humidity resistance.
Wherein the staining comprises iodine solution treatment.
This dyeing is handled and is utilized iodine solution to carry out the colouring to PVA membrane material, because PVA membrane material has fine adsorptivity with iodine solution, so the PVA membrane material becomes opaque material after adsorbing iodine solution. The PVA film obtained by the iodine solution dyeing treatment easily has optical characteristics of high transmittance and high degree of polarization. It is understood that the concentration of the iodine solution can be set by those skilled in the art according to practical circumstances, and is not particularly limited herein.
In step S14, the protective layer is removed to form a PVA layer having a transparent target area.
The dyed PVA layer is peeled off, and the PVA layer is light-permeable at the target area and non-light-permeable in the remaining area. The target area can be a preset punching position, the original PVA position of the punching position is reserved after the PE protective layer is separated, and the punching position can still transmit light.
After the step of removing the protective layer, the method for manufacturing the PVC layer further comprises:
the PVA layer was cleaned.
Specifically, the PVA layer may be cleaned using a brush.
Further, the step of washing the PVA layer may further comprise washing the PVA layer with water.
Specifically, the washing of the PVA layer may be completed by a water washing operation.
In the embodiment, a protection film is arranged on a target area of a transparent PVC film material to prevent the target area from being dyed and losing permeability; after the protective layer is removed, a transparent PVA layer with a target area is formed, and a polarizer for protecting the PVA layer is manufactured, so that the light permeability of the target area is ensured, and the problem of bubble lines at the target area is also avoided.
Example 2
The present embodiment provides a polarizer, as shown in fig. 3, including a PVA layer manufactured by the method for manufacturing a PVA layer according to the first aspect. The PVA layer 6 comprises a target area 7, which target area 7 is a predetermined perforation location in the PVA layer 6.
Specifically, the schematic structural diagram of the polarizer in the prior art is the hollow structure in fig. 1, and it can be seen that the hollow structure in the prior polarizer 3-1 is a punching position. The polaroid glue is required to be arranged in a preset polaroid area on a substrate when the polaroid is attached in the prior art, the polaroid exceeding the preset polaroid area is cut after the polaroid is adhered, the damage to the polaroid is easily caused, the manufactured polaroid is cut for the perforated screen polaroid, and the polaroid is further damaged.
The PVA layer 6 in the polaroid provided by the application does not need to be punched, so that the polaroid material at the punching position is reserved, and the process requirement is met. As shown in fig. 3, the target area 7 is a punching position.
In one possible implementation, for the polarizer provided herein, TAC films, which are protective films of the polarizer, are covered above and below the PVA layer 6. In addition, the polarizer further includes a protective film, an incremental film, a pressure-sensitive film, and a release film. Because the polarizer made of the PVA layer 6 is easy to absorb water and fade to lose polarization performance, a layer of TAC (Triacetyl Cellulose) film with uniform optical property and good transparency is required to be respectively adopted on two sides of the PVA layer 6 to isolate moisture and air, so that the manufactured polarizer is protected.
Furthermore, the protection film is located the uppermost layer of polaroid, and the TAC membrane is located the below of protection film, and from the lowermost floor that the type membrane is located the polaroid, and the pressure sensitive adhesive is located the top from the type membrane. The pressure-sensitive adhesive can be a high-temperature-resistant moisture-proof pressure-sensitive adhesive.
In this embodiment, a polarizer manufactured by the method of embodiment 1 is provided, and after the PE protection layer is removed, the PVA raw material at the hole is remained, and the hole is still light-permeable. The polaroid cutting machine has the advantages that the polaroid cutting is not needed, and the problem that burrs exist in the polaroid is avoided.
Example 3
The present embodiment provides a display device, as shown in fig. 4, the display device includes an optical module 8-2 and a light source module, the optical module 8-2 covers the light source module, and the optical module 8-2 includes the polarizer 3-2 as mentioned in the second aspect.
In one possible implementation, referring to fig. 4, the modified optical module 8-2 includes a TFT glass layer 5, a CF glass layer 4, an OCA glue layer 2, and a cover plate layer 1. The TFT glass layer 5 and the CF glass layer 4 may be made of a transparent material, and the cover plate layer 1 is also made of a transparent material, so that light emitted from the light source module can penetrate through the cover plate layer.
In another possible implementation manner, the OCA adhesive layer 2 is attached to the upper surface of the polarizer 3-2, and the CF glass layer 4 is attached to the lower surface of the polarizer 3-2. In order to better adhere the polarizer 3-2 to the cover plate 1, the OCA glue may be used to fill the polarizer 3-2 to form an OCA glue layer 2, and light emitted from the light source module may pass through the target region 7 of the polarizer 3-2 and then penetrate through the OCA glue layer 2 and the cover plate layer 1.
In this embodiment, a display device is provided, where the display device includes an optical module and a light source module, the optical module covers above the light source module, and the optical module includes the polarizer in embodiment 2. The display device manufactured by utilizing the polaroid avoids the risk of bubble lines at the punching position, ensures the light permeability of the punching position, and enhances the viewing capability of the front camera in the display device for photographing.
Example 4
The present embodiment provides a mobile terminal, as shown in fig. 5, including a camera 9 and the display device of embodiment 3, where the camera 9 is disposed below the target area 7 in the display device.
The mobile terminal further includes a housing 10, the camera 9 is embedded in the housing 10, and the display device is located above the housing 10.
In a possible implementation manner, the housing 10 of the mobile terminal may include a metal front shell and a metal rear shell, and a buckle is generally disposed on the metal front shell, and a clamping groove is disposed on the metal rear shell, and the buckle and the clamping groove are in interference fit with each other. The camera 9 may be disposed at a fixed position of the housing 10, the fixed position is a lighting position area when a front camera preset in the mobile terminal views a view, and the display device is disposed above the metal rear shell and below the metal front shell.
In another possible implementation manner, the housing 10 of the mobile terminal is a metal shell, and the camera 9 is disposed in the display device directly below the target area 7, and the area of the target area 7 is greater than or equal to the cross section of the camera 9.
In this embodiment, this mobile terminal is through utilizing the display device in embodiment 3, when having realized that leading camera is taken a picture and is looked a view, and is more clear accurate, has solved the fuzzy problem when the camera daylighting that causes because the bubble line of the appearance of polaroid.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (12)
1. A method for manufacturing a PVA layer, comprising:
obtaining a transparent PVA film material;
arranging a protective layer on a target area of the PVA film to isolate the target area from the outside;
dyeing the PVA film material;
removing the protective layer to form a PVA layer having the target area that is transparent.
2. The method for manufacturing a PVA layer according to claim 1, wherein said protective layer is a PE protective layer.
3. The method of manufacturing a PVA layer according to claim 1, wherein said step of obtaining a transparent PVA film is followed by:
and (3) carrying out swelling treatment on the PVA film material.
4. The method of making a PVA layer of claim 1, wherein said dyeing comprises iodine solution treatment.
5. The method of fabricating a PVA layer according to claim 1, wherein after said step of removing said protective layer, said method of fabricating a PVA layer further comprises the steps of:
and cleaning the PVA layer.
6. The method of making a PVA layer of claim 5, wherein said step of cleaning said PVA layer comprises:
washing the PVA layer with water.
7. A polarizer comprising the PVA layer produced by the method for producing a PVA layer according to any one of claims 1 to 6.
8. A display device comprising an optical module and a light source module, wherein the optical module covers the light source module, and the optical module comprises the polarizer of claim 7.
9. The display device of claim 8, wherein the optical module further comprises a TFT glass layer, a CF glass layer, an OCA glue layer, and a cover plate layer.
10. The display device of claim 9, wherein the OCA adhesive layer is attached to the upper surface of the polarizer and the CF glass layer is attached to the lower surface of the polarizer.
11. A mobile terminal comprising a camera and a display device according to claim 8, the camera being disposed below the target area in the display device.
12. The mobile terminal of claim 11, further comprising a housing, the camera embedded within the housing, the display device located above the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010599318.1A CN111610589A (en) | 2020-06-28 | 2020-06-28 | Manufacturing method of PVA layer, polarizer, display device and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010599318.1A CN111610589A (en) | 2020-06-28 | 2020-06-28 | Manufacturing method of PVA layer, polarizer, display device and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111610589A true CN111610589A (en) | 2020-09-01 |
Family
ID=72196949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010599318.1A Pending CN111610589A (en) | 2020-06-28 | 2020-06-28 | Manufacturing method of PVA layer, polarizer, display device and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111610589A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113759457A (en) * | 2021-09-24 | 2021-12-07 | 业成科技（成都）有限公司 | Polarizer preparation method, polarizer and display device |
| CN114397723A (en) * | 2021-12-31 | 2022-04-26 | 深圳市三利谱光电技术有限公司 | Method for protecting faded perforated polarizer substrate and preparation method of substrate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109733034A (en) * | 2019-02-22 | 2019-05-10 | 信利光电股份有限公司 | Polaroid and its manufacturing process |
| CN209215619U (en) * | 2019-01-11 | 2019-08-06 | 北京小米移动软件有限公司 | Polaroid, display screen and terminal |
| CN110133902A (en) * | 2019-04-29 | 2019-08-16 | 武汉华星光电技术有限公司 | Display device |
| CN110488407A (en) * | 2019-08-05 | 2019-11-22 | 深圳市三利谱光电科技股份有限公司 | Part has the polaroid and preparation method thereof of difference in polarisation |
| CN110568542A (en) * | 2019-08-28 | 2019-12-13 | 维沃移动通信有限公司 | polaroid, preparation method, display assembly and terminal |
-
2020
- 2020-06-28 CN CN202010599318.1A patent/CN111610589A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209215619U (en) * | 2019-01-11 | 2019-08-06 | 北京小米移动软件有限公司 | Polaroid, display screen and terminal |
| CN109733034A (en) * | 2019-02-22 | 2019-05-10 | 信利光电股份有限公司 | Polaroid and its manufacturing process |
| CN110133902A (en) * | 2019-04-29 | 2019-08-16 | 武汉华星光电技术有限公司 | Display device |
| CN110488407A (en) * | 2019-08-05 | 2019-11-22 | 深圳市三利谱光电科技股份有限公司 | Part has the polaroid and preparation method thereof of difference in polarisation |
| CN110568542A (en) * | 2019-08-28 | 2019-12-13 | 维沃移动通信有限公司 | polaroid, preparation method, display assembly and terminal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113759457A (en) * | 2021-09-24 | 2021-12-07 | 业成科技（成都）有限公司 | Polarizer preparation method, polarizer and display device |
| CN114397723A (en) * | 2021-12-31 | 2022-04-26 | 深圳市三利谱光电技术有限公司 | Method for protecting faded perforated polarizer substrate and preparation method of substrate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110133788B (en) | Polaroid, display panel and display device | |
| CN101315482B (en) | Image display device | |
| CN109545099B (en) | Liquid crystal display panel and terminal device thereof | |
| US10684502B2 (en) | Display panel and the manufacturing method thereof, and display device | |
| CN101641634B (en) | Liquid crystal display panel with microlens array and method for manufacturing the same | |
| CN111610589A (en) | Manufacturing method of PVA layer, polarizer, display device and mobile terminal | |
| CN109557726B (en) | Display panel, manufacturing method thereof and display device | |
| WO2021036743A1 (en) | Polarizer and fabrication method, and display assembly and terminal | |
| KR20110130573A (en) | Liquid crystal display device | |
| WO2013116038A1 (en) | Moisture barrier for electronic displays | |
| CN101013165A (en) | Flat display and attached protective film polarization chip laminate | |
| CN108269500B (en) | Display panel and manufacturing method thereof | |
| CN104516044B (en) | Polaroid and display device | |
| US20200166789A1 (en) | Liquid crystal display panel and terminal device | |
| CN101408639A (en) | Polarized light plate, liquid crystal display panel and apparatus as well as method for manufacturing polarized light plate | |
| CN111929759B (en) | Display screen, polaroid and electronic device | |
| CN109976029A (en) | A kind of production method of display panel, display device and display panel | |
| KR20110097078A (en) | Liquid crystal display device | |
| JP2007256904A (en) | Optical compensation structure and method for manufacturing same, and liquid crystal device having same optical compensation structure | |
| KR101737175B1 (en) | Polarizing plate, image display device, and method of producing polarizing plate | |
| CN206440923U (en) | A kind of display panel and display device | |
| US20210165272A1 (en) | Polarizer and Preparation Method Thereof, Display Panel and Display Device | |
| CN106896567A (en) | A kind of polaroid and display device | |
| CN108319061B (en) | Preparation method of polarizer and liquid crystal display panel | |
| KR100932041B1 (en) | Cutting method of polarizer film and cutting apparatus used therein |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200901 |