公开(公告)号：US09804311B2

公开(公告)日：2017-10-31

申请号：US15092033

申请日：2016-04-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gary E. Gaides ,  Kenneth A. Epstein

IPC: G02B5/30 ,  G02B5/02

CPC classification number: G02B5/30 ,  G02B5/0263 ,  G02B5/3066 ,  G02B2207/123

Abstract: A light control film, and light collimating assemblies and liquid crystal displays incorporating such light control films are described. The light control film includes alternating transmissive and absorptive regions, where the refractive index of each transmissive region is greater than the refractive index of each absorptive region. The absorptive regions form interfaces at angles that are close to the perpendicular to the light control film. A portion of the incident light intercepting the absorptive region undergoes Total Internal Reflection, and is transmitted through the film. The axial brightness of light passing through the film is increased, the brightness is more uniform within the viewing angle, and the viewing cutoff angle is sharpened.

公开(公告)号：US09773847B2

公开(公告)日：2017-09-26

申请号：US14895046

申请日：2014-06-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Kenneth A. Epstein ,  Adam D. Haag ,  Seong Taek Lee ,  Sergey Lamansky

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L27/3244 ,  H01L51/5268 ,  H01L51/5271 ,  H01L51/5281 ,  H01L51/5284

Abstract: The disclosure relates to emissive displays and, in particular, to emissive displays that include a top surface (111) that has a diffusely reflective inactive surface (116) adjacent a diffusely reflective emissive surface (114). The emissive display further includes a polarization selective antireflection film component (120) that includes a linear absorbing polarizer (126), a reflective polarizer (124), and a quarter-wave retarder (122), and is positioned separated from the top surface. The disclosure also relates to issues arising from these antireflection film components, such as brightness efficiency loss and image degradation such as pixel blur. The enhanced antireflection stack performs well in commercial OLED displays, with a 20% or greater brightness gain, a 30% or greater ambient light reflectance gain and no visually apparent image degradation.

公开(公告)号：US09761843B2

公开(公告)日：2017-09-12

申请号：US14648518

申请日：2013-11-21

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. Haag ,  Ghidewon Arefe ,  Kenneth A. Epstein ,  Nathaniel K. Naismith ,  Seong Taek Lee ,  Sergey Lamansky ,  William A. Tolbert

IPC: H01L51/52 ,  H01L27/32 ,  G02B27/28

CPC classification number: H01L51/5281 ,  G02B27/281 ,  H01L27/3244 ,  H01L51/5268 ,  H01L51/5271 ,  H01L51/5275

Abstract: An emissive display comprising an OLED, a first birefringent reflective polarizer, a second birefringent reflective polarizer optically between the OLED and the first birefringent reflective polarizer, a first linear absorbing polarizer having a contrast ratio of less than 100:1 optically between the first birefringent reflective polarizer and the second birefringent reflective polarizer, a second linear absorbing polarizer having a contrast ratio of less than 100:1, where the first birefringent reflective polarizer is optically between the second linear absorbing polarizer and the first linear absorbing polarizer, and a structured optical film optically between the OLED and the second birefringent reflective polarizer.