3m Innovative Properties Company

Seong Taek Lee

Adam D Haag

Joseph Clark Carls

Nicholas C Erickson

Xiaohui Cheng

Yeow Leng Teo

Kin Sheng Chan

Martin B Wolk

Albert I Everaerts

Timothy J Nevitt

Kenneth A Epstein

William Blake Kolb

Gilles J Benoit

Michael Benton Free

Robert L Brott

Encai Hao

Matthew B Johnson

Sergey Lamansky

Zhaohui Yang

David G Freier

Yongshang Lu

Bing Hao

Kristy A Gillette

Bert T Chien

Michelle Lund Toy

Keith R Bruesewitz

David A Rosen

Brianna N Wheeler

Sun-Yong Park

Stephen M Menke

Brianna N Nieson

Jody L Peterson

William A Tolbert

Nathaniel K Naismith

Ghidewon Arefe

An organic light emitting diode (OLED) display includes a pixelated OLED display panel and a color-correction component disposed on the pixelated OLED display panel. The pixelated OLED display panel has a ratio of blue-to-red color mixing weights at 30 degrees of β, and a ratio of blue-to-red color mixing weights at 45 degrees of β, where β≥β≥1.05 and 1.5≥β≥1.1. The color-correction component is configured such that a ratio of blue-to-red color mixing weights at 45 degrees of the display is βand a ratio of blue-to-red color mixing weights at 30 degrees of the display is β, where β−0.1≥β≥2.1−βand β−0.05≥β≥2.05−β. Methods of making OLED displays are described.

Organic light emitting diode display with color-correction component having different color mixing weights

An OLED display including a display panel and a color-correction component is described. A plurality of comparative display panels otherwise equivalent to the display panel but having one or more different optical thicknesses of OLED layers have a maximum white-point color shift from 0 to 45 degrees of WPCSand a white-point axial efficiency of WPAE. The plurality of comparative display panels defines a performance curve along a boundary of performance points. The OLED display and the display panel have respective maximum white-point color shifts from 0 to 45 degrees of WPCSand WPCSand respective white-point axial efficiencies of WPAE and WPAE. WPCSand WPAEdefines a performance point of the display panel to the right of the performance curve and WPCSand WPAE defines a performance point of the OLED display above or to the left of the performance curve. Methods of making the OLED display are described.

Organic light emitting diode with color-correction for maximum white-point color shift

Optical stacks are described. In particular, optical stacks including reflecting-absorbing polarizers and quarter-wave plates are disclosed. The optical core of the optical stack&#x2014;which includes a reflecting-absorbing polarizer with at least one skin layer including polarizing dye&#x2014;may be co-extruded or co-stretched.

Optical stack including reflective polarizer and quarter-wave plate on skin layer of absorbing polarizer

Polarizing beam splitters and systems incorporating such beam splitters are described. More specifically, polarizing beam splitters and systems with such beam splitters that incorporate multilayer optical films and reflect imaged light towards a viewer or viewing screen with high effective resolution are described.

Polarizing beam splitters providing high resolution images and systems utilizing such beam splitters

The present disclosure describes nanostructured light extraction color filter laminates, and articles and methods of using nanostructured light extraction color filter laminates for the fabrication of an OLED including a nanostructure, using lamination techniques. Nanostructured OLED devices can exhibit enhanced light extraction efficiency. The methods involve transfer and/or replication of a film, layer, or coating in order to form a nanostructured surface that is in optical contact with the emitting surface of an OLED in, for example, a top emitting or a bottom emitting active matrix OLED (TE-AMOLED or BE-AMOLED) device. The articles having enhanced light extraction efficiency can be of particular use in color-by-white (CBW) OLED displays, which use white-light spectrum OLEDs with a color filter array.

Nanostructures for color-by-white OLED devices

Optical stack including reflecting-absorbing polarizer

The present disclosure describes nano-structured light extraction color filter laminates, and articles and methods of using nanostructured light extraction color filter laminates for the fabrication of an OLED including a nanostructure, using lamination techniques. Nanostructured OLED devices can exhibit enhanced light extraction efficiency. The methods involve transfer and/or replication of a film, layer, or coating in order to form a nanostructured surface that is in optical contact with the emitting surface of an OLED in, for example, a top emitting or a bottom emitting active matrix OLED (TE-AMOLED or BE-AMOLED) device. The articles having enhanced light extraction efficiency can be of particular use in color-by-white (CBW) OLED displays, which use white-light spectrum OLEDs with a color filter array.

The disclosure relates to emissive displays and, in particular, to emissive displays that include a top surface () that has a diffusely reflective inactive surface () adjacent a diffusely reflective emissive surface (). The emissive display further includes a polarization selective antireflection film component () that includes a linear absorbing polarizer (), a reflective polarizer (), and a quarter-wave retarder (), 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.

Antireflective OLED construction

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.

Emissive display with hybrid polarizer

Growing community of inventors

Woodbury, MN, United States of America

Seong Taek Lee