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公开(公告)号：US20060209403A1
公开(公告)日：2006-09-21
申请号：US10566244
申请日：2004-03-12
IPC分类号： G03B21/60
CPC分类号： G03B21/62 , G02B5/0221 , G02B5/0242 , G02B5/0278 , G02B5/0294
摘要： The present invention relates to a rear-projection screen encompassing at least one light-scattering polymethyl methacrylate layer, which comprises a polymethyl methacrylate matrix and spherical scattering particles (A) and spherical particles (B) with a different median particle size V50, where the spherical scattering particles (A) have a median size V50 in the range from 0.1 to 40 μm, the difference between the refractive index of the spherical scattering particles (A) and that of the polymethyl methacrylate matrix being in the range from 0.02 to 0.2, where the spherical particles (B) have a median size V50 in the range from 10 to 150 μm, the difference between the refractive index of the spherical particles (B) and that of the polymethyl methacrylate matrix being in the range from 0 to 0.2, and where the total concentration of the spherical scattering particles (A) and particles (B) is in the range from 1 to 60% by weight, based on the weight of the light-scattering polymethyl methacrylate layer, where the concentration of the spherical scattering particles (A) cPA, the thickness of the light-scattering polymethyl methacrylate layer dS and the size of the spherical scattering particles (A) DPA is selected in such a way that the ratio cPA*dS/DPA3 is in the range from 0.001 to 0.015% by weight*mm/μm3, the concentration of the spherical particles (B) cPB, the thickness of the light-scattering polymethyl methacrylate layer dS and the size of the spherical particles (B) DPB is selected in such a way that the ratio cPB*dS/DPB3 is in the range from 0.000005 to 0.002% by weight*mm/μm3 and the ratio of the square of average surface roughness of the polymethyl methacrylate layer RZ to the third power of the size of the spherical particles (B) RZ2/DPB3 is in the range from 0.0002 to 0.1300 μm−1.
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公开(公告)号：US07339732B2
公开(公告)日：2008-03-04
申请号：US10566244
申请日：2004-03-12
申请人： Markus Parusel , Jann Schmidt , Herbert Groothues , Christoph Krohmer , Guenther Dickhaut-Bayer
发明人： Markus Parusel , Jann Schmidt , Herbert Groothues , Christoph Krohmer , Guenther Dickhaut-Bayer
CPC分类号： G03B21/62 , G02B5/0221 , G02B5/0242 , G02B5/0278 , G02B5/0294
摘要： The present invention relates to a rear-projection screen encompassing at least one light-scattering polymethyl methacrylate layer, which comprises a polymethyl methacrylate matrix and spherical scattering particles (A) and spherical particles (B) with a different median particle size V50, where the spherical scattering particles (A) have a median size V50 in the range from 0.1 to 40 μm, the difference between the refractive index of the spherical scattering particles (A) and that of the polymethyl methacrylate matrix being in the range from 0.02 to 0.2, where the spherical particles (B) have a median size V50 in the range from 10 to 150 μm, the difference between the refractive index of the spherical particles (B) and that of the polymethyl methacrylate matrix being in the range from 0 to 0.2, and where the total concentration of the spherical scattering particles (A) and particles (B) is in the range from 1 to 60% by weight, based on the weight of the light-scattering polymethyl methacrylate layer, where the concentration of the spherical scattering particles (A) cPA, the thickness of the light-scattering polymethyl methacrylate layer dS and the size of the spherical scattering particles (A) DPA is selected in such a way that the ratio cPA*dS/DPA3 is in the range from 0.001 to 0.015% by weight*mm/μm3, the concentration of the spherical particles (B) cPB, the thickness of the light-scattering polymethyl methacrylate layer dS and the size of the spherical particles (B) DPB is selected in such a way that the ratio cPB*dS/DPB3 is in the range from 0.000005 to 0.002% by weight*mm/μm3 and the ratio of the square of average surface roughness of the polymethyl methacrylate layer RZ to the third power of the size of the spherical particles (B) RZ2/DPB3 is in the range from 0.0002 to 0.1300 μm−1.
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3.发明授权Diffuser disk for LCD applications, method for the production and use thereof 失效用于LCD应用的扩散盘，用于生产和使用它的方法公开(公告)号：US07629041B2
公开(公告)日：2009-12-08
申请号：US10566249
申请日：2004-05-12
申请人： Markus Parusel , Jann Schmidt , Herbert Groothues
发明人： Markus Parusel , Jann Schmidt , Herbert Groothues
CPC分类号： G03B21/62 , G02B5/0221 , G02B5/0242 , G02B5/0278 , G02B5/0294 , G02F1/1336 , Y10T428/25 , Y10T428/254 , Y10T428/258 , Y10T428/31855
摘要： The present invention relates to diffuser sheets for LCD applications encompassing at least one light-scattering polymethyl methacrylate layer which comprises a polymethyl methacrylate matrix and also from 0.5 to 59.5% by weight, based on the weight of the light-scattering polymethyl methacrylate layer, of spherical scattering particles (A) whose median size V50 is in the range from 0.1 to 40 μm, and whose refractive index differs from that of the polymethyl methacrylate matrix by a value in the range from 0.02 to 0.2, and from 0.5 to 59.5% by weight, based on the weight of the light-scattering polymethyl methacrylate layer, of spherical particles (B) whose median size V50 is in the range from 10 to 150 μm and whose refractive index differs from that of the polymethyl methacrylate matrix by a value in the range from 0 to 0.2, where the total concentration of the spherical scattering particles (A) and particles (B) is in the range from 1 to 60% by weight, based on the weight of the light-scattering polymethyl methacrylate layer, and the spherical scattering particles (A) and spherical particles (B) have a different median particle size V50, where the transmittance of the diffuser sheets is in the range from 20 to 70% and their scattering power is greater than 0.3, where the ratio of the square of average surface roughness of the polymethyl methacrylate layer RZ to the third power of the size of the spherical particles (B) RZ2/DPB3 is in the range from 0.0002 to 0.1300 μm−1.
摘要翻译： 本发明涉及用于LCD应用的漫射片，其包括至少一种光散射聚甲基丙烯酸甲酯层，其包含聚甲基丙烯酸甲酯基质，并且还基于光散射聚甲基丙烯酸甲酯层的重量计为0.5-59.5重量％ 中值大小V50为0.1〜40μm的球形散射粒子（A），其折射率与聚甲基丙烯酸甲酯基体的折射率不同，为0.02〜0.2，0.5〜59.5％ 重量，基于光散射聚甲基丙烯酸甲酯层的重量，其中值大小V50在10至150μm范围内并且其折射率不同于聚甲基丙烯酸甲酯基质的球形颗粒（B）的值为 0至0.2的范围，其中球形散射颗粒（A）和颗粒（B）的总浓度在1至60重量％的范围内，基于Li的重量 散射聚甲基丙烯酸甲酯层，球状散射粒子（A）和球状粒子（B）的中值粒径V50不同，扩散片的透射率在20〜70％的范围内，散射光强度为 大于0.3，其中聚甲基丙烯酸甲酯层RZ的平均表面粗糙度的平方比与球形颗粒（B）RZ2 / DPB3的尺寸的第三功率的比率在0.0002至0.1300mum-1的范围内。
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公开(公告)号：US20080158670A1
公开(公告)日：2008-07-03
申请号：US10566370
申请日：2004-03-12
申请人： Markus Parusel , Jann Schmidt , Herbert Groothues
发明人： Markus Parusel , Jann Schmidt , Herbert Groothues
IPC分类号： G03B21/60
CPC分类号： G03B21/62 , G02B5/0226 , G02B5/0278
摘要： The present invention relates to rear-projection screens which have at least one scattering layer encompassing scattering particles and has at least one backing layer, characterized in that the halved-intensity angle of the scattering layer is greater than or equal to 15° and the halved-intensity angle of the backing layer is smaller than or equal to 6.5°, where the gloss R60° of the backing layer is smaller than or equal to 70.
摘要翻译： 本发明涉及具有至少一个包含散射颗粒的散射层并具有至少一个背衬层的后投影屏幕，其特征在于散射层的一半的强度角大于或等于15°， 背衬层的强度角小于或等于6.5°，其中背衬层的光泽度R 60°<70°小于或等于70°。
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5.发明申请Diffuser disk for lcd applications, method for the production and use thereof 失效用于lcd应用程序的扩散盘，用于生产和使用它的方法公开(公告)号：US20060240200A1
公开(公告)日：2006-10-26
申请号：US10566249
申请日：2004-05-12
申请人： Markus Parusel , Jann Schmidt , Herbert Groothues
发明人： Markus Parusel , Jann Schmidt , Herbert Groothues
IPC分类号： A41G1/00
CPC分类号： G03B21/62 , G02B5/0221 , G02B5/0242 , G02B5/0278 , G02B5/0294 , G02F1/1336 , Y10T428/25 , Y10T428/254 , Y10T428/258 , Y10T428/31855
摘要： The present invention relates to diffuser sheets for LCD applications encompassing at least one light-scattering polymethyl methacrylate layer which comprises a polymethyl methacrylate matrix and also from 0.5 to 59.5% by weight, based on the weight of the light-scattering polymethyl methacrylate layer, of spherical scattering particles (A) whose median size V50 is in the range from 0.1 to 40 μm, and whose refractive index differs from that of the polymethyl methacrylate matrix by a value in the range from 0.02 to 0.2, and from 0.5 to 59.5% by weight, based on the weight of the light-scattering polymethyl methacrylate layer, of spherical particles (B) whose median size V50 is in the range from 10 to 150 μm and whose refractive index differs from that of the polymethyl methacrylate matrix by a value in the range from 0 to 0.2, where the total concentration of the spherical scattering particles (A) and particles (B) is in the range from 1 to 60% by weight, based on the weight of the light-scattering polymethyl methacrylate layer, and the spherical scattering particles (A) and spherical particles (B) have a different median particle size V50, where the transmittance of the diffuser sheets is in the range from 20 to 70% and their scattering power is greater than 0.3, where the ratio of the square of average surface roughness of the polymethyl methacrylate layer RZ to the third power of the size of the spherical particles (B) RZ2/DPB3 is in the range from 0.0002 to 0.1300 μm−1.
摘要翻译： 本发明涉及用于LCD应用的漫射片，其包括至少一种光散射聚甲基丙烯酸甲酯层，其包含聚甲基丙烯酸甲酯基质，并且还基于光散射聚甲基丙烯酸甲酯层的重量计为0.5-59.5重量％ 中值大小V <50％的球形散射粒子（A）在0.1〜40μm的范围内，其折射率与聚甲基丙烯酸甲酯基质的折射率不同，为0.02〜0.2 ，和基于光散射聚甲基丙烯酸甲酯层的重量的0.5至59.5重量％的球形颗粒（B），其中位尺寸V <50>在10至150μm的范围内 并且其折射率与聚甲基丙烯酸甲基丙烯酸酯基体的折射率不同在0至0.2的范围内，其中球形散射颗粒（A）和颗粒（B）的总浓度在1至60％的范围内，通过 重量，基础o n光散射聚甲基丙烯酸甲酯层的重量，球状散射粒子（A）和球形粒子（B）的平均粒径V <50，其中扩散片的透射率为 在20至70％的范围内，并且它们的散射功率大于0.3，其中聚甲基丙烯酸甲酯层R SUB平均表面粗糙度的平方与第三功率的比值 球形颗粒（B）R Z 2 / D 3 PB 3 O 3的范围在0.0002至0.1300μm的范围内， SUP> -1 。
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公开(公告)号：US07602550B2
公开(公告)日：2009-10-13
申请号：US10566370
申请日：2004-03-12
申请人： Markus Parusel , Jann Schmidt , Herbert Groothues
发明人： Markus Parusel , Jann Schmidt , Herbert Groothues
CPC分类号： G03B21/62 , G02B5/0226 , G02B5/0278
摘要： The present invention relates to rear-projection screens which have at least one scattering layer encompassing scattering particles and has at least one backing layer, characterized in that the halved-intensity angle of the scattering layer is greater than or equal to 15° and the halved-intensity angle of the backing layer is smaller than or equal to 6.5°, where the gloss R60° of the backing layer is smaller than or equal to 70.
摘要翻译： 本发明涉及具有至少一个包含散射颗粒的散射层并具有至少一个背衬层的后投影屏幕，其特征在于散射层的一半的强度角大于或等于15°， 背衬层的强度角小于或等于6.5°，背衬层的光泽R60°小于或等于70°。
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公开(公告)号：US07064894B2
公开(公告)日：2006-06-20
申请号：US10495428
申请日：2003-09-27
申请人： Markus Parusel , Jann Schmidt , Herbert Groothues , Wolfgang Scharnke , Hans Lorenz , Helmut Haering , Guenther Dickhaut-Bayer
发明人： Markus Parusel , Jann Schmidt , Herbert Groothues , Wolfgang Scharnke , Hans Lorenz , Helmut Haering , Guenther Dickhaut-Bayer
CPC分类号： G03B21/62
摘要： A rear-projection screen that has at least one light-scattering polymethyl methacrylate layer in which is embedded spherical plastic particles; the previously described rear-project screen that has an additional plastic sheet that does not have embedded scattering beads; and a method of making a rear-projection screen.
摘要翻译： 背投屏幕，其具有至少一个光散射的聚甲基丙烯酸甲酯层，其中嵌入有球形塑料颗粒; 前面描述的具有不具有嵌入散射珠的附加塑料片的后投影屏幕; 以及制造背投屏幕的方法。
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公开(公告)号：US20050084993A1
公开(公告)日：2005-04-21
申请号：US10501925
申请日：2003-05-06
IPC分类号： G02B6/00 , F21V8/00 , F21Y103/00 , H01L21/00
CPC分类号： G02B6/0041 , G02B6/0036 , G02B6/0065
摘要： The present invention relates to a [lacuna] having at least one light-entry surface and at least one light-exit surface, the ratio of the light-exit surface area to the light-entry surface area being at least 4, comprising at least one light-guiding layer, characterized in that the light-guiding layer comprises at least 60% by weight, expressed in terms of the weight of the light-guiding layer, of polymethyl methacrylate and from 0.0001 to 0.2% by weight, expressed in terms of the weight of the light-guiding layer, of spherical particles with an average diameter in the range of from 0.3 to 40 μm, and the light-exit surface of the light-guiding layer is provided with structurings.
摘要翻译： 本发明涉及具有至少一个光入射表面和至少一个光出射表面的[光斑]，光出射表面积与光入射表面积之比至少为4，至少包括 一个光导层，其特征在于，光导层包含至少60重量％，以导光层的重量表示的聚甲基丙烯酸甲酯和0.0001至0.2重量％ 导光层的重量为平均直径为0.3〜40μm的球形颗粒，导光层的光出射面设置有结构。
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公开(公告)号：US10466406B2
公开(公告)日：2019-11-05
申请号：US14906961
申请日：2014-07-03
申请人： Herbert Groothues , Jann Schmidt , Wangelis Karampougioukis , Stephan Neumayer , Helmut Haering , Berthold Schoenig
发明人： Herbert Groothues , Jann Schmidt , Wangelis Karampougioukis , Stephan Neumayer , Helmut Haering , Berthold Schoenig
IPC分类号： F21V8/00
摘要： A process for producing a light guide plate includes producing a colorless transparent sheet from a colorless transparent material by extrusion with a polishing stack. A printed reflector film is laminated in-line to the colorless transparent sheet. The printed reflector film includes: a thermoplastic reflector film which is opaque white or translucent white and made of a thermoplastic material; and a colorless thermoplastic printed on the thermoplastic reflector film. There is no direct optical contact between the colorless transparent sheet and the thermoplastic reflector film. A glass transition temperature of the printed colorless thermoplastic is above 25° C. and below glass transition temperatures of the colorless transparent material of the colorless transparent sheet and of the thermoplastic material of the thermoplastic reflector film.
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公开(公告)号：US07046903B2
公开(公告)日：2006-05-16
申请号：US10488252
申请日：2002-10-16
摘要： The present invention relates to a light-guide body, which has at least one light-entry surface and at least one light-exit surface, the ratio of the light-exit surface area to the light-entry surface area being at least 4, comprising at least one light-guiding layer with a thickness of at least 2 mm, characterized in that the light-guiding layer comprises at least 60% by weight, expressed in terms of the weight of the light-guiding layer, of polymethyl methacrylate and from 0.001 to 0.08% by weight, expressed in terms of the weight of the light-guiding layer, of spherical barium sulphate particles with an average diameter in the range of from 0.3 to 20 μm.
摘要翻译： 本发明涉及一种导光体，其具有至少一个入光面和至少一个光出射面，所述光出射面积与所述光入射面积的比例为4以上， 包括至少一个厚度至少为2mm的光导层，其特征在于，所述光导层包含至少60重量％，以导光层的重量表示的聚甲基丙烯酸甲酯和 0.001至0.08重量％，以导光层的重量计，平均直径范围为0.3至20μm的球形硫酸钡颗粒。
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