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    • 3. 发明公开
    • Optical sheet having thin double-sided light guide plate
    • Optisches Platte mitdünnerdoppelseitiger Lichtleiterplatte
    • EP2422962A2
    • 2012-02-29
    • EP11179357.6
    • 2011-08-30
    • SKC Haas Display Films Co., Ltd.
    • Mi, Xiang-DongGreener, JehudaLei, HerongLandry, Michael R.Lee, Ju-Hyun
    • B29D11/00B29C69/02
    • B29D11/00663B29C43/222B29C43/28B29C47/0021B29C47/004B29C47/065B29C59/04B29C2043/486B29C2059/023B29K2995/0018
    • The present invention provides an optical sheet having a plurality of light guide plate patterns (252,254), each light guide plate pattern having a micro-patterned output surface for emitting light, and a micro-patterned bottom surface opposing to the output surface, made in steps comprising: extruding a first resin (450a) into the nip between a first pressure roller (478a) and a first patterned roller (480a) to form a first layer at a first patterned roller surface temperature T1 and a first nip pressure P1, the first layer having an unpatterned surface and a patterned surface (252), the patterned surface having a micro-pattern transferred from the first patterned roller, and conveying the first layer into a nip between a second patterned roller (480b) and a second pressure roller (478b) in a second extrusion station (470b); and extruding a second resin (450b) into the nip between the second pressure roller and the second patterned roller and onto the unpatterned surface of the first layer to form a second layer at a second patterned roller surface temperature T2 and a second nip pressure P2, the second layer having a micro-pattern (254) transferred from the second patterned roller; the combined first and second layers forming the optical sheet (300) comprising the plurality of light guide plate patterns.
    • 本发明提供一种具有多个导光板图案(252,254)的光学片,每个导光板图案具有用于发光的微图案化输出表面和与输出表面相对的微图案化底表面 步骤包括:将第一树脂(450a)挤出到第一加压辊(478a)和第一图案化辊(480a)之间的辊隙中,以形成第一图案辊表面温度T1和第一辊隙压力P1的第一层, 第一层具有未图案化表面和图案化表面(252),所述图案化表面具有从第一图案化辊转移的微图案,并将第一层输送到第二图案化辊(480b)和第二压力辊 (478b)在第二挤压站(470b)中; 并将第二树脂(450b)挤压到第二加压辊和第二图案化辊之间的辊隙中并在第一层的未图案化表面上挤出,以形成第二图案辊表面温度T2和第二辊隙压力P2的第二层, 所述第二层具有从所述第二图案化辊转移的微图案(254); 组合的第一和第二层形成包括多个导光板图案的光学片(300)。
    • 5. 发明公开
    • Optical sheet with laminated double-sided light guide plate
    • Optische Platte mit laminierter doppelseitiger Lichtleiterplatte
    • EP2422965A2
    • 2012-02-29
    • EP11179421.0
    • 2011-08-30
    • SKC Haas Display Films Co., Ltd.
    • Greener, JehudaMi, Xiang-DongLandry, Michael R.Lei, HerongLee, Ju-Hyun
    • B29D11/00B29C69/02G02B6/00
    • B29D11/00663B29C43/222B29C43/28B29C47/0021B29C47/004B29C47/0057B29C47/065B29C2947/92704B29K2995/0018G02B6/0036G02B6/0065G02B6/0068
    • The present invention provides an optical sheet (300b) having a plurality of light guide plate patterns, each light guide plate pattern having a micro-patterned output surface for emitting light, and a micro-patterned bottom surface opposing to the output surface. The steps comprise, extruding a first resin (450a) into the nip between a first pressure roller (478a) and a first patterned roller (480a) to form a first layer (410a) at a first patterned roller surface temperature T1 and a first nip pressure P1, the first layer having an unpatterned surface and a patterned surface, the patterned surface having a micro-pattern transferred from the first patterned roller; extruding a second resin (450b) into the nip between a second pressure roller (478b) and a second patterned roller (480b) to form a second layer (410b) at a second patterned roller surface temperature T2 and a second nip pressure P2, the second layer having an unpatterned surface and a patterned surface, the patterned surface having a micro-pattern transferred from the second patterned roller and laminating (490) the first layer and the second layer at their unpatterned surfaces to form the optical sheet comprising a plurality of light guide plate patterns.
    • 本发明提供一种具有多个导光板图案的光学片(300b),每个导光板图案具有用于发光的微图案化输出表面和与输出表面相对的微图案化底表面。 这些步骤包括将第一树脂(450a)挤出到第一压力辊(478a)和第一图案化辊(480a)之间的辊隙中以形成第一图案辊表面温度T1和第一辊隙(410a)的第一层(410a) 压力P1,第一层具有未图案化表面和图案化表面,图案化表面具有从第一图案化辊转移的微图案; 将第二树脂(450b)挤出到第二加压辊(478b)和第二图案辊(480b)之间的辊隙中,以形成第二图案辊表面温度T2和第二辊隙压力P2的第二层(410b), 第二层具有未图案化的表面和图案化表面,所述图案化表面具有从第二图案化辊转移的微图案,并且在其未图案化的表面层压(490)第一层和第二层,以形成包括多个 导光板图案。