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公开(公告)号：US20240219764A1
公开(公告)日：2024-07-04
申请号：US18283921
申请日：2022-03-25
IPC分类号： G02F1/1334
CPC分类号： G02F1/1334
摘要： A polymer dispersed liquid crystal (PDLC) film achieves a haze (light diffusibility) capable of exhibiting a shielding function, and improved backscattering ratio. The PDLC film according to an embodiment of the present invention includes a first transparent conductive film, a polymer dispersed liquid crystal layer, and a second transparent conductive film in the stated order. The polymer dispersed liquid crystal layer contains a polymer matrix and droplets of a liquid crystal compound dispersed in the polymer matrix. An average particle diameter of the droplets when viewed from a direction perpendicular to a main surface of the PDLC film is from 0.3 μm to 0.9 μm. A volume ratio of the droplets in the polymer dispersed liquid crystal layer is from 20% to 70%. The liquid crystal compound has a birefringence of from 0.20 to 0.50. The polymer dispersed liquid crystal layer has a thickness of from 5 μm to 40 μm.
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公开(公告)号：US20240142816A1
公开(公告)日：2024-05-02
申请号：US18277595
申请日：2022-02-16
发明人： Mariko HIRAI , Masanori OTSUKA , Akihiro SHIBUYA
IPC分类号： G02F1/1334 , G02F1/139
CPC分类号： G02F1/1334 , G02F1/139 , G02F2202/04 , G02F2202/16 , G02F2203/01
摘要： The present invention provides a technology of switching the appearance of a product. A decorative film according to an embodiment of the present invention includes: a light control layer including a first transparent conductive film, a polymer dispersed liquid crystal layer containing a polymer matrix and droplets dispersed in the polymer matrix, the droplets each containing a liquid crystal compound and a dichroic dye, and a second transparent conductive film in the stated order from a viewer side thereof; and a decorative layer arranged on at least one side of the light control layer.
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公开(公告)号：US20220146922A1
公开(公告)日：2022-05-12
申请号：US17599496
申请日：2020-03-27
发明人： Masanori OTSUKA , Hiroyuki TAKEMOTO
IPC分类号： G03B21/60 , G02F1/137 , G02F1/1343
摘要： The present invention provides a transmissive screen including a light control layer, the screen being reduced in reflection scattering toward an image source, and an image display apparatus using the transmissive screen.
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公开(公告)号：US20240152015A1
公开(公告)日：2024-05-09
申请号：US18277597
申请日：2022-02-16
发明人： Mariko HIRAI , Masanori OTSUKA , Akihiro SHIBUYA
IPC分类号： G02F1/137 , G02F1/1334 , G02F1/1335 , G02F1/1343
CPC分类号： G02F1/137 , G02F1/1334 , G02F1/133553 , G02F1/13439 , G02F2202/04
摘要： The present invention provides a technology of switching the appearance of a product. A decorative film according to an embodiment of the present invention includes: a light control layer including a first transparent conductive film, a polymer dispersed liquid crystal layer containing a polymer matrix and droplets dispersed in the polymer matrix, the droplets each containing a liquid crystal compound and a dichroic dye, and a second transparent conductive film in the stated order from a viewer side thereof; and a reflective layer arranged on a side of the light control layer opposite to the viewer side.
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5.发明公开公开(公告)号：US20230341721A1
公开(公告)日：2023-10-26
申请号：US17916208
申请日：2021-03-29
IPC分类号： G02F1/1334 , B32B27/36 , B32B27/08 , B32B37/24
CPC分类号： G02F1/1334 , B32B27/36 , B32B27/08 , B32B37/24 , B32B2255/20 , B32B2255/10 , B32B2255/26 , B32B2255/28 , B32B2307/412 , B32B2307/202 , B32B2457/202 , B32B2250/244 , B32B2250/02 , B32B2037/243
摘要： According to the present invention, provided is a PDLC film, which includes a PDLC layer excellent in thickness uniformity and is suppressed from causing liquid crystal leakage from the PDLC layer. A method of producing a polymer dispersed liquid crystal film of the present invention includes: applying, to a first transparent conductive film, an emulsion including a solvent, and polymer particles and liquid crystal particles dispersed in the solvent to form an applied layer; drying the applied layer to form a polymer dispersed liquid crystal layer containing a polymer matrix and the liquid crystal particles dispersed in the polymer matrix; and laminating a second transparent conductive film on the polymer dispersed liquid crystal layer, wherein the polymer particles include first polymer particles and second polymer particles, and wherein an average particle diameter of the second polymer particles is larger than an average particle diameter of the first polymer particles.
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