Flexible unitary lightguide and a method of making the same are disclosed. The lightguide includes a structured input side that includes a first pattern having smaller features superimposed on a second pattern having larger features. The lightguide further includes a structured top surface that includes a first region and a different second region. The first region includes a plurality of discrete light extractors for extracting light that propagates within the flexible unitary lightguide by total internal reflection. The second region includes a taper portion for directing light from the structured input side to the first region. The light extractors form a periodic array that has a first period along the length of the flexible unitary lightguide. The first period is such that substantially no visible moir fringes occur when the flexible unitary lightguide is used as a backlight in a pixelated display.
申请公布号
WO2011019785(A1)
申请公布日期
2011.02.17
申请号
WO2010US45115
申请日期
2010.08.11
申请人
3M INNOVATIVE PROPERTIES COMPANY;SOLOMON, JEFFREY L.;KINDER, BRIAN A.;BOYD, GARY T.
发明人
SOLOMON, JEFFREY L.;KINDER, BRIAN A.;BOYD, GARY T.