WO2014201773A1 - 胆甾型液晶薄膜制作方法、胆甾型液晶薄膜和滤光片 - Google Patents
胆甾型液晶薄膜制作方法、胆甾型液晶薄膜和滤光片 Download PDFInfo
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- WO2014201773A1 WO2014201773A1 PCT/CN2013/083636 CN2013083636W WO2014201773A1 WO 2014201773 A1 WO2014201773 A1 WO 2014201773A1 CN 2013083636 W CN2013083636 W CN 2013083636W WO 2014201773 A1 WO2014201773 A1 WO 2014201773A1
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- liquid crystal
- region
- crystal film
- cholesteric liquid
- mixture
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Classifications
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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
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
- C09K19/58—Dopants or charge transfer agents
- C09K19/586—Optically active dopants; chiral dopants
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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
- C09K19/02—Liquid crystal materials characterised by optical, electrical or physical properties of the components, in general
-
- 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
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/062—Non-steroidal liquid crystal compounds containing one non-condensed benzene ring
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/201—Filters in the form of arrays
-
- 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
- C09K2019/0444—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group
- C09K2019/0448—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group the end chain group being a polymerizable end group, e.g. -Sp-P or acrylate
-
- 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
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/20—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers
- C09K19/2007—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers the chain containing -COO- or -OCO- groups
- C09K2019/2035—Ph-COO-Ph
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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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/34—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 reflector
- G02F2201/343—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 reflector cholesteric liquid crystal reflector
Definitions
- the present invention relates to a method for producing a cholesteric liquid crystal film, a cholesteric liquid crystal film and a filter. Background technique
- the cholesteric liquid crystal contains many layers of molecules, each of which is arranged in the same direction, but the adjacent two layers of molecules are slightly rotated in the direction of arrangement, the angle is about 15 minutes, and the layers are stacked into a spiral structure. When the arrangement of the molecules is rotated 360 degrees. When returning to the original direction, the distance between the two layers in which the molecular arrangement is completely the same is called the pitch of the cholesteric liquid crystal.
- the method for manufacturing a color liquid crystal film may include the following steps: Step S101: controlling the temperature at a first temperature such that the liquid crystal film has a first pitch capable of exhibiting a red color, the first temperature being, for example, about 25 ⁇ ;
- Step S102 irradiating with ultraviolet light to form an area of red, and fixing the liquid crystal of the area;
- Step S103 controlling the temperature to the second temperature, so that the region of the liquid crystal film that is not fixed with the liquid crystal has a second pitch capable of exhibiting green color, and the second temperature is, for example, about 34 ° C;
- Step S104 irradiation with ultraviolet light needs to be made into green The area that holds the liquid crystal in the area.
- the nematic liquid crystal monomer and the chiral agent in the dispersion layer of the mixture for producing the bile liquid crystal film contain a polymerizable group, and when the ultraviolet light illuminates the dispersion layer of the mixture, the photoinitiator in the dispersion layer of the mixture causes the nematic Polymerization of liquid crystal monomers and chiral agents.
- the inventors have recognized that the chiral agent and the nematic liquid crystal monomer participate in different polymerization ratios under different ultraviolet radiation energy, that is, the concentration of the chiral agent varies depending on the energy of the ultraviolet radiation received, or The concentration of the chiral agent will vary depending on the amount of ultraviolet light exposure obtained.
- the concentration of the chiral agent directly affects the pitch of the formed cholesteric liquid crystal film (specifically, the concentration of the chiral agent is inversely proportional to the pitch of the formed bile liquid crystal film), thereby controlling the formation of cholestasis.
- the pitch of the liquid crystal film is controlled by the formation of cholestasis.
- the present invention provides a method for producing a cholesteric liquid crystal film according to which a bile liquid crystal film having a plurality of colors can be simultaneously formed by one continuous exposure treatment, thereby improving the production efficiency.
- the present invention also provides a bile liquid crystal film and a filter produced according to the method.
- the present invention provides a method of fabricating a cholesteric liquid crystal film, the method comprising: forming a mixture dispersion layer on a substrate; and subjecting the dispersion layer of the mixture to a partial area exposure treatment to form a cholesteric liquid crystal film.
- a partial area exposure treatment to form a cholesteric liquid crystal film.
- different regions of the mixed layer of the mixture are obtained with different exposure amounts so that the cholesteric liquid crystal films formed in the different regions have different pitches.
- exposure amount radiation intensity * exposure time
- the inventors have recognized that the sub-region exposure treatment can be performed with different radiation intensities or different exposure times for different regions of the dispersion layer of the mixture, so that the mixture is dispersed Different areas get different exposures.
- the sub-region exposure process may include: performing a sub-area exposure process on the mixture dispersion layer through a mask, the mask plate including at least two having different light transmittances Light transmission area.
- the mixture dispersion layer may include a first region, a second region, and a third region
- the mask may include a first corresponding to the first region, the second region, and the third region, respectively
- the light transmissive region, the second light transmissive region and the third light transmissive region, the first light transmissive region, the second light transmissive region and the third light transmissive region have different light transmittances.
- the sub-area exposure process may include: a first exposure process in which an entire area of the dispersion layer of the mixture is subjected to exposure processing for a first time length; and a second exposure process, in the second In the exposure process, a partial region of the dispersion layer of the mixture is subjected to exposure treatment for a second length of time.
- the mixture dispersion layer may include a first region, a second region, and a third region, and in the first exposure process, the first region of the mixture dispersion layer is the first time length, The second region and the third region perform exposure processing; in the second exposure processing, exposing the first region and the second region of the mixture dispersion layer to a second time length; and the sub-region exposure processing It is also possible to include a step of: a third exposure process in which the first region of the dispersion layer of the mixture is subjected to exposure treatment for a third length of time. The third region may be masked by the first mask after the first exposure process, and the second region and the third region may be masked by the second mask after the second exposure process. It will be appreciated that the sub-regional exposure process in this case is still a continuous exposure process in which portions of the mixture dispersion layer are masked by respective masks at different exposure stages so that the mixture is dispersed Different areas get different exposures.
- the cholesteric liquid crystal film formed in the first region may have a first pitch
- the cholesteric liquid crystal film formed in the second region may have a second pitch and formed in the third region
- the cholesteric liquid crystal film may have a third pitch.
- the cholesteric liquid crystal film formed in the first region may reflect red light
- the cholesteric liquid crystal film formed in the second region may reflect green light
- the cholesteric liquid crystal film formed in the third region It can reflect blue light.
- the sub-region exposure treatment may be performed on the dispersion layer of the mixture by using an ultraviolet lamp as a light source.
- the ultraviolet light emitted from the ultraviolet lamp may have a wavelength of 365 nm, a radiation intensity of 2. 5 mW/cm 2 , and an exposure treatment period of 15 to 25 minutes.
- the manufacturing method may further include the steps of: mixing a nematic liquid crystal monomer, a photoinitiator, a chiral agent, and an ultraviolet absorber to form a mixture, the mixture being used to form the dispersion layer of the mixture.
- the parts by mass of each component in the mixture may be: the nematic liquid crystal monomer is
- the manufacturing method may further include the step of: heat-treating the dispersion layer of the mixture, the temperature of the heat treatment being higher than a clearing point temperature of the dispersion layer of the mixture.
- the present invention provides a cholesteric liquid crystal film which is produced by the above-described method for producing a cholesteric liquid crystal film.
- the present invention provides a filter comprising the above-described cholesteric liquid crystal film.
- the cholesteric liquid crystal film may include a plurality of first pixel regions, a plurality of second pixel regions, and a plurality of third pixel regions.
- the cholesteric liquid crystal film formed in the plurality of first pixel regions may have a first pitch and reflect red light; the cholesteric liquid crystal film formed in the plurality of second pixel regions may have a second pitch and The green light is reflected; and the cholesteric liquid crystal film formed in the plurality of third pixel regions may have a third pitch and reflect blue light.
- FIG. 1 is a flow chart showing a method of fabricating a cholesteric liquid crystal film according to an embodiment of the present invention
- FIGS. 2A to 2C are step-by-step schematic views showing a method of fabricating a cholesteric liquid crystal film according to an embodiment of the present invention
- FIG. 3 is a flow chart showing a sub-area exposure process in a method of fabricating a cholesteric liquid crystal film according to another embodiment of the present invention.
- FIG. 4A to 4C illustrate a cholesteric liquid crystal film according to another embodiment of the present invention. a step-by-step schematic diagram of the sub-area exposure process in the fabrication method;
- Fig. 5 is a schematic view of a filter including a cholesteric liquid crystal film according to an embodiment of the present invention. detailed description
- FIG. 1 is a flow chart showing a method of fabricating a cholesteric liquid crystal film according to an embodiment of the present invention, the method comprising the steps of:
- Step S201 forming a mixture dispersion layer on the substrate; and - Step S202: performing a sub-area exposure treatment on the dispersion layer of the mixture to form a cholesteric liquid crystal film.
- a nematic liquid crystal monomer, a chiral agent, a photoinitiator, and an ultraviolet absorber may be mixed to form a mixture. ⁇ 1. 8 copies. Further preferably, the nematic liquid crystal monomer is 65 parts; the chiral agent is 35 parts; the photoinitiator is 3.5 parts; and the ultraviolet absorber is 1.5 parts.
- the nematic liquid crystal monomer may include, for example, an acrylate or allyloxy ester-type nematic liquid crystal monomer; the chiral agent may include, for example, a chiral agent having a terminal group which is a polymerizable double bond or an acrylate.
- Photoinitiators such as the Irgacure series 650-659;
- the ultraviolet absorber may be, for example, a salicylate, a benzophenone, a benzotriazole, a substituted acrylonitrile, a triazine or a hindered amine.
- the nematic liquid crystal monomer may be, for example, an allyloxy ester-based nematic liquid crystal monomer, a specific chemical structure -
- the mixture may be uniformly distributed on the substrate 1 by dipping, spraying or spin coating to form a uniformly distributed mixture dispersion layer 2 on the substrate 1.
- the thickness of the mixture dispersion layer 2 may be, for example, 0.8 to 1. 2 ⁇ ⁇ .
- the mixture dispersion layer 2 can be subjected to a sub-region exposure process through the mask 3.
- the reticle 3 may include at least two light transmissive regions having different light transmittances.
- each region of the mixture dispersion layer 2 corresponding to each light-transmitting region of the mask 3 can obtain a different exposure amount, and thus the cholester formed in the corresponding region.
- the liquid crystal films of the type may have different pitches so that light of different colors can be reflected. .
- a UV light intensity gradient is formed on the mixture dispersion layer 2 by using the mask 3.
- the chiral agent exhibits a concentration gradient such that the formed cholesteric liquid crystal film 5 (see FIG. 2C) has a different pitch, thereby obtaining A cholesteric liquid crystal polymer film 5 that reflects light of different wavelengths.
- the light emitted from the light source illuminates the mixture dispersion layer 2 through the mask 3.
- the light source is preferably an ultraviolet light source, the ultraviolet light source emits ultraviolet light at a wavelength of 365 nm, the radiation intensity is 2. 5 fflW/cm 2 , and the irradiation time is 15 to 25 minutes.
- the wavelength of the ultraviolet light emitted by the ultraviolet source is matched to the wavelength of the photoinitiator in the dispersion layer of the mixture.
- the mask 3 may include a first light transmissive region 31, a second light transmissive region 32, and a third light transmissive region 33.
- the ultraviolet light 4 passes through the first light transmitting region 31 of the mask 3,
- the second light transmitting region 32 and the third light transmitting region 33 illuminate the mixture dispersion layer 2.
- the exposure amount of the ultraviolet light obtained in different regions of the dispersion layer 2 is different.
- the photoinitiator initiates polymerization of the nematic liquid crystal monomer and the chiral agent in the dispersion layer 2 of the mixture under the action of ultraviolet light to form a cholesteric liquid crystal film.
- the formed cholesteric liquid crystal film 5 may include first regions 51 corresponding to the first light-transmitting region 31, the second light-transmitting region 32, and the third light-transmitting region 33 of the reticle 3, respectively. Two regions 52 and a third region 53.
- the cholesteric liquid crystal film formed in the first region 51 may have a first pitch
- the cholesteric liquid crystal film formed in the second region 52 may have a second pitch
- the cholesteric liquid crystal film formed in the third region 53 may Has a third pitch.
- Bile liquid crystal films having different pitches can selectively reflect light.
- the cholesteric liquid crystal film formed in the first region 51 can reflect red light
- the cholesteric liquid crystal film formed in the second region 52 can reflect green light
- the cholesteric liquid crystal film formed in the third region 53 can Reflecting blue light.
- the ultraviolet light 4 has a wavelength of 365 nm, the radiation intensity is 2. 5 mW/cm 2 , and the irradiation time is 20 minutes.
- the transmittances of the first light-transmitting region 31, the second light-transmitting region 32, and the third light-transmitting region 33 of the reticle 3 for ultraviolet light may be 90%, 70%, and 50%, respectively.
- Each of the different regions of the mixture dispersion layer 2 of the first light-transmitting region 31, the second light-transmitting region 32, and the third light-transmitting region 33 may receive a radiation intensity of 2.25 mW/cm ⁇ 1.75 mW/ Ultraviolet light of cm 2 and 1.25 mW/cm 2 to obtain different exposures
- the cholesteric liquid crystal film 5 formed on the substrate 1 includes three regions: the first region 51, the second region 52 and the third region 53, but the cholesteric liquid crystal film 5 may further include a fourth region (not shown) or only two regions, such as a first region and a second region.
- the cholesteric liquid crystal film formed in the fourth region may have a fourth pitch and may reflect, for example, yellow light. It should be noted that the number of regions in the partial area exposure process, the shape of the regions, the pitch of the cholesteric liquid crystal film formed in different regions, and the wavelength of the light reflected by the liquid crystal film formed in different regions of the present invention. No restrictions are imposed. Those skilled in the art can make various changes according to actual needs by utilizing the teachings of the present invention.
- n 0.1
- the pitch P of the cholesteric liquid crystal film is 6500 nra
- the pitch P of the cholesteric liquid crystal film is 5500 nm
- the ⁇ -type liquid crystal film reflects blue light with a wavelength of 450 nra, and the pitch P of the cholesteric liquid crystal film is 4500 nm.
- the mixture dispersion layer 2 may be subjected to heat treatment while irradiating the mixture dispersion layer 2 with ultraviolet light 4.
- the temperature of the heat treatment may be higher than the clearing point temperature of the dispersion layer 2 of the mixture.
- the heating temperature can be 65 to 85 °C.
- the fabrication method according to the embodiment of the present invention provides a different exposure amount by different regions of the dispersion layer of the mixture by controlling the light transmittance of the mask, so that a plurality of regions including reflections of light of different colors can be simultaneously fabricated.
- the cholesteric liquid crystal film improves the production efficiency.
- Fig. 3 is a flow chart showing the sub-area exposure processing in the method of fabricating a cholesteric liquid crystal film according to another embodiment of the present invention.
- the steps of the sub-area exposure processing include:
- Step S301 exposing the entire area of the dispersion layer of the mixture to the first time length
- Step S302 Performing an exposure treatment on a partial region of the dispersion layer of the mixture for a second length of time.
- the mixture dispersion layer 2 includes a first region 21, a second region 22, and a third region 23, and the entire region of the mixture dispersion layer 2 (including the first region 21, for a first time length T1, The second region 22 and the third region 23 are subjected to exposure processing.
- the third region 23 of the mixture dispersion layer 2 is shielded by the first mask 3', and a partial region of the mixture dispersion layer 2 is aligned with the second time length T2 (including the first region 21 and the second Area 22) Perform exposure processing.
- the second reticle 3'' is used to shield the mixture dispersion layer 2
- the second region 22 and the third region 23, and the partial region (including the first region 21) of the mixture dispersion layer 2 is subjected to exposure processing for the second time length T3.
- the shape and movement mode of the mask are not limited, for example, the second mask is used in the exposure process. 3' 'Reusing the first mask 3' is also possible.
- the sub-regional exposure process in this case is still a continuous exposure process, and the process conditions for the sub-regional exposure process of the dispersion layer 2 of the mixture remain unchanged. Partial regions of the mixture dispersion layer 2 are masked by respective masks (3' and 3'') at different exposure stages ( ⁇ , ⁇ 2 and ⁇ 3) such that different regions of the layer 2 are dispersed for the mixture The exposure times of the first region 21, the second region 22, and the third region 23 are different, thereby obtaining different exposure amounts.
- the exposure time for the first region 21 of the mixture dispersion layer 2 is T 1 + T2 + T3
- the exposure time for the second region 22 of the mixture dispersion layer 2 is T 1 + T2 for the dispersion layer of the mixture.
- the exposure time of the second region 23 of 2 is ⁇ 3.
- the respective lengths of time are selected according to the desired pitch, and T l , ⁇ 2 and ⁇ 3 may be the same or different from each other.
- Fig. 5 is a schematic view of a filter including a cholesteric liquid crystal film according to an embodiment of the present invention.
- a filter according to an embodiment of the present invention may include a substrate 1 and a cholesteric liquid crystal film 5 formed on the substrate 1.
- the substrate 1 may be glass, quartz, transparent resin or the like.
- the cholesteric liquid crystal film 5 includes a plurality of first pixel regions 51, a plurality of second pixel regions 52, and a plurality of third pixel regions 53.
- the cholesteric liquid crystal film formed in the plurality of first pixel regions 51 may have a first pitch and reflect red light; the cholesteric liquid crystal film formed in the plurality of second pixel regions 52 may have a second pitch and reflect green light And the cholesteric liquid crystal film formed in the plurality of third pixel regions 53 may have a third pitch and reflect blue light.
- the filter according to an embodiment of the present invention may further include a flat layer, a protective layer, a spacer, and the like.
- the reticle 3 includes a plurality of first transparent regions 31, a plurality of second transparent regions 32, and a plurality of third transparent regions 33, wherein the first transparent region 31 and the second transparent region
- the light transmittance of the 32 and the third light-transmitting regions 33 is different.
- Subregional exposure treatment of the mixture dispersion layer 2 through the mask 3 causes different regions of the mixture dispersion layer 2 to be received differently
- the amount of exposure is to form a cholesteric liquid crystal film having a different pitch.
- the formed cholesteric liquid crystal film 5 includes a plurality of first pixel regions 51, A plurality of second pixel regions 52 and a plurality of third pixel regions 53.
- the reticle 3 may further include a plurality of fourth light-transmitting regions, and the fourth light-transmitting region has a light transmittance different from that of the first to third light-transmitting regions.
- the formed cholesteric liquid crystal film 5 may further include a plurality of fourth pixel regions (not shown) corresponding to the plurality of fourth light-transmitting regions.
- the cholesteric liquid crystal film formed in the plurality of fourth pixel regions may have a fourth pitch and may reflect, for example, yellow light.
- the filter including the cholesteric liquid crystal film provided by the present invention can be applied to the display field, and the present embodiment has been described by taking only the filter applied to the display device as an example. Further, the filter including the cholesteric liquid crystal film provided in the present invention can also be applied to other fields such as optics, medical detection, photography, illumination, and the like.
- the specific structure of the filter (for example, the number of cholesteric liquid crystal film regions, the shape of the regions, the pitch of the cholesteric liquid crystal film in different regions, the wavelength of the reflected light, etc.) can be changed depending on the actual application.
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Abstract
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013102444712A CN103309073A (zh) | 2013-06-19 | 2013-06-19 | 胆甾型液晶薄膜制作方法、胆甾型液晶薄膜和滤光片 |
| CN201310244471.2 | 2013-06-19 |
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| WO2014201773A1 true WO2014201773A1 (zh) | 2014-12-24 |
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| PCT/CN2013/083636 Ceased WO2014201773A1 (zh) | 2013-06-19 | 2013-09-17 | 胆甾型液晶薄膜制作方法、胆甾型液晶薄膜和滤光片 |
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| WO (1) | WO2014201773A1 (zh) |
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| CN105647545B (zh) * | 2016-03-04 | 2018-09-18 | 京东方科技集团股份有限公司 | 胆甾相液晶组合物、液晶显示面板及其制备方法 |
| CN108732842A (zh) * | 2017-04-24 | 2018-11-02 | 深圳市宝立创科技有限公司 | 一种多色液晶手写膜 |
| CN108646335A (zh) * | 2018-05-07 | 2018-10-12 | 深圳市唯酷光电有限公司 | 多层胆甾醇型液晶薄膜及其制备方法 |
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| CN113138491A (zh) * | 2021-04-27 | 2021-07-20 | 武汉华星光电技术有限公司 | 显示面板及显示装置 |
| CN113589416B (zh) * | 2021-07-13 | 2023-04-07 | Tcl华星光电技术有限公司 | 滤光片及其制备方法、显示面板 |
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| CN116300161B (zh) * | 2023-02-21 | 2024-09-24 | 华南师范大学 | 一种利用紫外光调控液晶涂层颜色的方法和产物及其应用 |
| CN116107009A (zh) * | 2023-02-28 | 2023-05-12 | 西京学院 | 一种oled显示面板 |
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| CN120539970A (zh) * | 2025-07-28 | 2025-08-26 | 南通大学 | 基于光电可驱动的手性液晶显示器件及其制备方法 |
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| CN1388911A (zh) * | 2000-06-06 | 2003-01-01 | 皇家菲利浦电子有限公司 | 液晶显示器和及其制造方法 |
| CN1470912A (zh) * | 2002-07-09 | 2004-01-28 | Lg.飞利浦Lcd有限公司 | 使用胆甾型液晶的液晶显示设备 |
| CN1479141A (zh) * | 2002-07-10 | 2004-03-03 | Lg.菲利浦Lcd株式会社 | 采用胆甾型液晶的液晶显示装置 |
| US20110181803A1 (en) * | 2008-03-31 | 2011-07-28 | Ippei Inoh | Liquid crystal display device and method for driving the same |
| CN102629063A (zh) * | 2011-08-02 | 2012-08-08 | 京东方科技集团股份有限公司 | 胆甾液晶显示器及其制备方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002214423A (ja) * | 2001-01-18 | 2002-07-31 | Fuji Photo Film Co Ltd | コレステリック液晶カラーフィルターの製造方法 |
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- 2013-06-19 CN CN2013102444712A patent/CN103309073A/zh active Pending
- 2013-09-17 WO PCT/CN2013/083636 patent/WO2014201773A1/zh not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1388911A (zh) * | 2000-06-06 | 2003-01-01 | 皇家菲利浦电子有限公司 | 液晶显示器和及其制造方法 |
| CN1470912A (zh) * | 2002-07-09 | 2004-01-28 | Lg.飞利浦Lcd有限公司 | 使用胆甾型液晶的液晶显示设备 |
| CN1479141A (zh) * | 2002-07-10 | 2004-03-03 | Lg.菲利浦Lcd株式会社 | 采用胆甾型液晶的液晶显示装置 |
| US20110181803A1 (en) * | 2008-03-31 | 2011-07-28 | Ippei Inoh | Liquid crystal display device and method for driving the same |
| CN102629063A (zh) * | 2011-08-02 | 2012-08-08 | 京东方科技集团股份有限公司 | 胆甾液晶显示器及其制备方法 |
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