CN115373168A - Liquid crystal panel with low-reflectivity conductive film and preparation method thereof - Google Patents
Liquid crystal panel with low-reflectivity conductive film and preparation method thereof Download PDFInfo
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- CN115373168A CN115373168A CN202110548769.7A CN202110548769A CN115373168A CN 115373168 A CN115373168 A CN 115373168A CN 202110548769 A CN202110548769 A CN 202110548769A CN 115373168 A CN115373168 A CN 115373168A
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- liquid crystal
- crystal panel
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- conductive film
- reflectivity
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 70
- 238000002310 reflectometry Methods 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 239000000758 substrate Substances 0.000 claims abstract description 34
- 239000011521 glass Substances 0.000 claims abstract description 33
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 24
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000011259 mixed solution Substances 0.000 claims abstract description 21
- 238000001035 drying Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000011248 coating agent Substances 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 9
- 229920000123 polythiophene Polymers 0.000 claims abstract description 8
- 239000011347 resin Substances 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000013543 active substance Substances 0.000 claims abstract description 7
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 238000001704 evaporation Methods 0.000 claims abstract description 4
- 239000012528 membrane Substances 0.000 claims abstract description 4
- 238000002834 transmittance Methods 0.000 claims description 7
- 239000005357 flat glass Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 2
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003292 glue Substances 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/14—Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
-
- 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
- G02F2202/00—Materials and properties
- G02F2202/22—Antistatic materials or arrangements
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal panel with a low-reflectivity conductive film and a preparation method thereof, wherein the preparation method comprises the following steps: step one, preparing a mixed solution for preparing a membrane, wherein the mixed solution comprises the following components in percentage by mass: 60 to 70 percent of water, 10 to 20 percent of propylene glycol monomethyl ether acetate, 5 to 15 percent of active agent, 0 to 10 percent of methanol, 0 to 10 percent of ethylene glycol and 0.1 to 1 percent of polythiophene resin; step two, cleaning the liquid crystal panel; step three, uniformly coating the mixed solution prepared in the step one on the surface of the upper substrate glass of the liquid crystal panel cleaned in the step two; and step four, drying the liquid crystal panel coated with the mixed solution, evaporating volatile components in the mixed solution, and forming a layer of conductive film with low reflectivity on the liquid crystal panel by the rest part. The liquid crystal display panel prepared by the method can reduce the reflectivity of the liquid crystal panel and also has an antistatic effect.
Description
Technical Field
The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal panel with a low-reflectivity conductive film and a preparation method thereof.
Background
The liquid crystal panel has a wide range of application fields, including consumer electronics fields represented by mobile phones, industrial control fields represented by medical treatment, and vehicle-mounted fields represented by automobiles. Taking the automobile industry as an example, along with the development of science and technology in recent years, intellectualization and automation become the mainstream direction of the development of the whole automobile industry. Liquid crystal instruments, liquid crystal central control panels, liquid crystal streaming media rearview mirrors and liquid crystal vehicle-mounted entertainment systems have been incorporated into the list of essential components of automobiles. The requirements for liquid crystal panels in the field of vehicle mounting are very high, and the requirements are embodied in the aspects of reliability, durability, safety and the like. The safety aspect of the liquid crystal panel is mainly embodied in light interference, and particularly, when a vehicle runs, external light irradiates the vehicle, and is reflected to the eyes of a driver through a liquid crystal instrument, a liquid crystal central control panel, a liquid crystal streaming media rearview mirror and the like, so that the sight of the driver is interfered, and the driving safety is seriously influenced.
In order to reduce the reflection of the liquid crystal panel to light, in the industry, light is mainly dispersed by adding an antireflection film on an outer tube plate of the liquid crystal panel so as to achieve the purpose of reducing the reflected light. The anti-reflection film has the defects of low definition, low transmittance, chromatic aberration, short service life and the like in actual use. In addition, static electricity is inevitably generated in the installation and use processes of the liquid crystal panel, and if the static electricity is not timely released, the display state of the liquid crystal panel is affected, and the problems of screen splash, non-display and the like are caused. Therefore, it is necessary to provide a low-reflectivity conductive film liquid crystal panel suitable for the vehicle-mounted field, which can reduce the reflectivity of the liquid crystal panel and also has an antistatic effect.
Disclosure of Invention
The present invention is directed to solving the above problems, and provides a liquid crystal panel with a low-reflectivity conductive film for reducing the reflectivity of the liquid crystal panel and playing a role of static resistance, and a method for manufacturing the liquid crystal panel with the low-reflectivity conductive film.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a liquid crystal display panel with low reflectivity conducting film, includes upper substrate glass and infrabasal plate glass, and color filter is installed to upper substrate glass inboard, and the pixel array is installed to infrabasal plate glass inboard, it has the liquid crystal to fill between upper substrate glass and the infrabasal plate glass, and through the frame glue encapsulation around the liquid crystal, its characterized in that: the upper substrate glass is covered with a low-reflectivity conductive film, and the low-reflectivity conductive film is prepared by mixing, coating and drying 60-70% of water, 10-20% of propylene glycol monomethyl ether acetate, 5-15% of an active agent, 0-10% of methanol, 0-10% of ethylene glycol and 0.1-1% of polythiophene resin in percentage by mass.
Furthermore, the thickness of the low-reflectivity conductive film is 100 nm-1000 nm, and the surface resistance is 100 omega/cm 2 ～5000Ω/cm 2 。
Furthermore, the low-reflectivity conductive film has the reflectivity of 0.1-1.0% under the light of 550nm, the transmittance of 96-99%, the refractive index of 1.4-1.6 and the display color difference of-0.005 to +0.005.
Furthermore, the upper substrate glass and the lower substrate glass are thinned, and the thinned thickness is 0.1 mm-0.4 mm.
A method for preparing a liquid crystal panel with a low-reflectivity conductive film comprises the following steps:
step one, preparing a mixed solution for preparing a membrane, wherein the mixed solution comprises the following components in percentage by mass: 60 to 70 percent of water, 10 to 20 percent of propylene glycol monomethyl ether acetate, 5 to 15 percent of active agent, 0 to 10 percent of methanol, 0 to 10 percent of ethylene glycol and 0.1 to 1 percent of polythiophene resin;
step two, cleaning the liquid crystal panel;
step three, uniformly coating the mixed solution prepared in the step one on the surface of the upper substrate glass of the liquid crystal panel cleaned in the step two;
and step four, drying the liquid crystal panel coated with the mixed solution, evaporating volatile components in the mixed solution, and forming a layer of conductive film with low reflectivity on the liquid crystal panel by the rest part.
Further, the drying temperature in the fourth step is 80-130 ℃, and the drying time is 30-90 minutes.
Furthermore, the drying equipment adopted in the fourth step is a conventional air pressure closed oven or a high pressure closed oven or a continuous transmission type oven.
Compared with the prior art, the invention has the beneficial effects that:
is covered withThe surface resistance of the liquid crystal panel after the low-reflectivity conductive film is 100 omega/cm 2 ～5000Ω/cm 2 The touch screen can play an antistatic role while meeting normal touch control, the reflectivity of 550nm light is within the range of 0.1% -1.0%, the transmittance of 550nm wavelength light is within the range of 96% -99%, the refractive index of 550nm wavelength light is within the range of 1.4% -1.6, the refractive index (1.52) of substrate glass on a liquid crystal panel is close, the display color difference is within the range of-0.005- +0.005, the reflectivity of the liquid crystal panel is reduced, the visual interference of light to people in the using process can be reduced, the visual experience is improved, a low-reflectivity conductive film is coated on the substrate glass in a mixed solution coating and drying mode, the touch screen is simple to operate and high in efficiency, and the requirement of mass production can be met.
Drawings
Fig. 1 is a schematic structural diagram of a liquid crystal panel with a low-reflectivity conductive film according to the present invention.
Fig. 2 is a flowchart of a method for manufacturing a liquid crystal panel with a low-reflectivity conductive film according to the present invention.
The display panel comprises a substrate, a low-reflectivity conductive film, an upper substrate glass, a frame glue, a lower substrate glass, a pixel array, a color filter and a liquid crystal, wherein 1 represents a low-reflectivity conductive film, 2 represents an upper substrate glass, 3 represents a frame glue, 4 represents a lower substrate glass, 5 represents a pixel array, 6 represents a color filter and 7 represents a liquid crystal.
Detailed Description
To explain in detail the technical features of the present invention and the objects and effects achieved, the following is further described with reference to the accompanying drawings:
as shown in fig. 1, a liquid crystal panel with a low-reflectivity conductive film comprises an upper substrate glass 2 and a lower substrate glass 4, wherein a color filter 6 is installed on the inner side of the upper substrate glass 2, a pixel array 5 is installed on the inner side of the lower substrate glass 4, a liquid crystal 7 is filled between the upper substrate glass 2 and the lower substrate glass 4, the periphery of the liquid crystal 7 is packaged by a frame glue 3, a low-reflectivity conductive film 1 is covered on the upper substrate glass 2, and the low-reflectivity conductive film 1 is prepared by mixing, coating and drying 60-70% by mass of water, 10-20% by mass of propylene glycol monomethyl ether acetate, 5-15% by mass of an active agent, 0-10% by mass of methanol, 0-10% by mass of ethylene glycol and 0.1-1% by mass of polythiophene resin.
Preferably, the low-reflectivity conductive film 1 has a thickness of 100nm to 1000nm and a surface resistance of 100 Ω/cm 2 ～5000Ω/cm 2 。
Preferably, the low-reflectance conductive film 1 has a reflectance of 0.1 to 1.0% under 550nm light, a transmittance of 96 to 99%, a refractive index of 1.4 to 1.6, and a display color difference of-0.005 to +0.005.
Preferably, the upper substrate glass 2 and the lower substrate glass 4 are thinned to a thickness of 0.1mm to 0.4mm.
The liquid crystal panel provided by the above embodiment has a light and thin overall structure, and the surface resistance of the low-reflectivity conductive film 1 is 100 Ω/cm 2 ～5000Ω/cm 2 The antistatic coating can meet the use requirement and simultaneously has an antistatic effect; the reflectivity of light with the wavelength of 550nm is within the range of 0.1-1.0%, so that the interference to sight is reduced; the transmittance of 550nm wavelength light is within the range of 96-99%, the refractive index of 550nm wavelength light is within the range of 1.4-1.6, and is close to the refractive index (1.52) of the upper glass substrate 2, so that the upper glass substrate 2 can be subjected to anti-reflection, and the reflectivity is reduced; the thickness of the film layer after drying is 100 nm-1000 nm, and the chromatic aberration range is-0.005- +0.005, so that the color reality and definition of the liquid crystal panel are improved.
As shown in fig. 2, a method for manufacturing a liquid crystal panel with a low-reflectivity conductive film includes the steps of:
step one, preparing a mixed solution for preparing a membrane, wherein the mixed solution comprises the following components in percentage by mass: 60 to 70 percent of water, 10 to 20 percent of propylene glycol monomethyl ether acetate, 5 to 15 percent of active agent, 0 to 10 percent of methanol, 0 to 10 percent of ethylene glycol and 0.1 to 1 percent of polythiophene resin;
step two, cleaning the liquid crystal panel;
step three, uniformly coating the mixed solution prepared in the step one on the surface of the upper substrate glass of the liquid crystal panel cleaned in the step two;
and step four, drying the liquid crystal panel coated with the mixed solution, evaporating volatile components (methanol, ethylene glycol, water and the like) in the mixed solution, and forming a layer of conductive film with low reflectivity on the liquid crystal panel by the residual non-volatile components (polythiophene resin and the like).
Preferably, the drying temperature in the fourth step is 80-130 ℃, and the drying time is 30-90 minutes.
Preferably, the drying equipment adopted in the fourth step is a conventional air pressure closed oven or a high pressure closed oven or a continuous transmission type oven.
The thickness of the film layer of the conductive film with low reflectivity coated on the liquid crystal panel prepared by the method can be controlled to be 100 nm-1000 nm, and the surface resistance can be controlled to be 100 omega/cm 2 ～5000Ω/cm 2 The reflectivity under 550nm light is 0.1-1.0%, the transmittance is 96-99%, the refractive index is 1.4-1.6, the color difference of the display color is-0.005- +0.005, the reflectivity can be reduced, and the antistatic effect is achieved at the same time.
The present invention is not limited to the above-described embodiments, and various modifications, improvements and substitutions can be made by those skilled in the art without departing from the concept of the present invention, which is within the scope of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (7)
1. The utility model provides a liquid crystal display panel with low reflectivity conducting film, includes upper substrate glass and infrabasal plate glass, and color filter is installed to upper substrate glass inboard, and the inboard pixel array that installs of infrabasal plate glass, it has the liquid crystal to fill between upper substrate glass and the infrabasal plate glass, through gluing the encapsulation all around of liquid crystal, its characterized in that: the upper substrate glass is covered with a low-reflectivity conductive film, and the low-reflectivity conductive film is prepared by mixing, coating and drying 60-70% of water, 10-20% of propylene glycol monomethyl ether acetate, 5-15% of an active agent, 0-10% of methanol, 0-10% of ethylene glycol and 0.1-1% of polythiophene resin in percentage by mass.
2. The liquid crystal panel with the conductive film having low reflectance according to claim 1, wherein: the thickness of the low-reflectivity conductive film is 100 nm-1000 nm, and the surface resistance is 100 omega/cm 2 ～5000Ω/cm 2 。
3. The liquid crystal panel with the low-reflectance conductive film according to claim 1, wherein: the low-reflectivity conductive film has the reflectivity of 0.1-1.0% under 550nm light, the transmittance of 96-99%, the refractive index of 1.4-1.6 and the display color difference of-0.005 to +0.005.
4. The liquid crystal panel with the low-reflectance conductive film according to claim 1, wherein: the upper substrate glass and the lower substrate glass are thinned, and the thinned thickness is 0.1 mm-0.4 mm.
5. A method for preparing the liquid crystal panel with the conductive film with low reflectivity according to any one of claims 1 to 4, comprising the steps of:
step one, preparing a mixed solution for preparing a membrane, wherein the mixed solution comprises the following components in percentage by mass: 60 to 70 percent of water, 10 to 20 percent of propylene glycol monomethyl ether acetate, 5 to 15 percent of active agent, 0 to 10 percent of methanol, 0 to 10 percent of ethylene glycol and 0.1 to 1 percent of polythiophene resin;
step two, cleaning the liquid crystal panel;
step three, uniformly coating the mixed solution prepared in the step one on the surface of the upper substrate glass of the liquid crystal panel cleaned in the step two;
and step four, drying the liquid crystal panel coated with the mixed solution, evaporating volatile components in the mixed solution, and forming a layer of conductive film with low reflectivity on the liquid crystal panel by the rest part.
6. The method for manufacturing a liquid crystal panel with a low-reflectance conductive film according to claim 5, wherein: the drying temperature of the fourth step is 80-130 ℃, and the drying time is 30-90 minutes.
7. The method for manufacturing a liquid crystal panel with a low-reflectivity conductive film according to claim 5, wherein the method comprises the following steps: the drying equipment adopted in the step four is a conventional air pressure closed oven or a high pressure closed oven or a continuous transmission type oven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110548769.7A CN115373168A (en) | 2021-05-20 | 2021-05-20 | Liquid crystal panel with low-reflectivity conductive film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110548769.7A CN115373168A (en) | 2021-05-20 | 2021-05-20 | Liquid crystal panel with low-reflectivity conductive film and preparation method thereof |
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| Publication Number | Publication Date |
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| CN115373168A true CN115373168A (en) | 2022-11-22 |
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| CN202110548769.7A Pending CN115373168A (en) | 2021-05-20 | 2021-05-20 | Liquid crystal panel with low-reflectivity conductive film and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009069428A (en) * | 2007-09-12 | 2009-04-02 | Dainippon Printing Co Ltd | Manufacturing method of optical laminate, optical laminate, polarizing plate, and image display device |
| JP2010102020A (en) * | 2008-10-22 | 2010-05-06 | Sumitomo Osaka Cement Co Ltd | Liquid crystal panel, method of manufacturing the same, coating for forming antistatic film of the same, and image display device |
| JP2012068415A (en) * | 2010-09-22 | 2012-04-05 | Toppan Printing Co Ltd | Hardcoat coating liquid and antireflection film |
| US20130329297A1 (en) * | 2011-01-14 | 2013-12-12 | Dai Nippon Printing Co., Ltd. | Antireflection film, method for producing antireflection film, polarizer and image display device |
| CN110320691A (en) * | 2018-03-28 | 2019-10-11 | 惠州市宝明精工有限公司 | A kind of preparation method of liquid crystal display panel with antistatic film and antistatic film |
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2021
- 2021-05-20 CN CN202110548769.7A patent/CN115373168A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009069428A (en) * | 2007-09-12 | 2009-04-02 | Dainippon Printing Co Ltd | Manufacturing method of optical laminate, optical laminate, polarizing plate, and image display device |
| JP2010102020A (en) * | 2008-10-22 | 2010-05-06 | Sumitomo Osaka Cement Co Ltd | Liquid crystal panel, method of manufacturing the same, coating for forming antistatic film of the same, and image display device |
| JP2012068415A (en) * | 2010-09-22 | 2012-04-05 | Toppan Printing Co Ltd | Hardcoat coating liquid and antireflection film |
| US20130329297A1 (en) * | 2011-01-14 | 2013-12-12 | Dai Nippon Printing Co., Ltd. | Antireflection film, method for producing antireflection film, polarizer and image display device |
| CN110320691A (en) * | 2018-03-28 | 2019-10-11 | 惠州市宝明精工有限公司 | A kind of preparation method of liquid crystal display panel with antistatic film and antistatic film |
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