Seong Hun Lee

US Patent:

20200166765, May 28, 2020

Filed:

Jan 30, 2020

Appl. No.:

16/776632

Inventors:

- St. Paul MN, US
Seong Taek Lee - Woodbury MN, US
Yeow Leng Teo - Singapore, SG
Kin Sheng Chan - Singapore, SG
Xiaohui Cheng - Singapore, SG

International Classification:

G02B 27/28
G03B 21/14
G02B 5/30
G02B 30/25

Abstract:

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.

US Patent:

20200041707, Feb 6, 2020

Filed:

Sep 25, 2019

Appl. No.:

16/581829

Inventors:

- St. Paul MN, US
Adam D. Haag - Woodbury MN, US
Seong Taek Lee - Woodbury MN, US
Brianna N. Nieson - Bloomington MN, US
Kristy A. Gillette - Spring Valley WI, US
Michelle L. Toy - North St. Paul MN, US

International Classification:

G02B 5/30
G02B 5/22
G02F 1/1335
H01L 27/32

Abstract:

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—which includes a reflecting-absorbing polarizer with at least one skin layer including polarizing dye—may be co-extruded or co-stretched.

US Patent:

20190271852, Sep 5, 2019

Filed:

May 22, 2019

Appl. No.:

16/419103

Inventors:

- St. Paul MN, US
Seong Taek Lee - Woodbury MN, US
Yeow Leng Teo - Singapore, SG
Kin Sheng Chan - Singapore, SG
Xiaohui Cheng - Singapore, SG

International Classification:

G02B 27/28
G03B 21/14
G02B 27/26
G02B 5/30

Abstract:

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.

US Patent:

20180294317, Oct 11, 2018

Filed:

Jun 7, 2018

Appl. No.:

16/002426

Inventors:

- St. Paul MN, US
Seong Taek Lee - Woodbury MN, US
Michael Benton Free - St. Paul MN, US
Nicholas C. Erickson - St. Paul MN, US

International Classification:

H01L 27/32
G02B 5/20
G02B 5/02
H01L 51/52

Abstract:

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.

US Patent:

20180172888, Jun 21, 2018

Filed:

Jun 13, 2016

Appl. No.:

15/737043

Inventors:

- St. Paul MN, US
Adam D. Haag - Woodbury MN, US
Seong Taek Lee - Woodbury MN, US
Brianna N. Nieson - Bloomington MN, US
Kristy A. Gillette - Spring Valley WI, US
Michelle L. Toy - North Saint Paul MN, US

International Classification:

G02B 5/30
G02B 5/22
G02F 1/1335
H01L 27/32

Abstract:

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—which includes a reflecting-absorbing polarizer with at least one skin layer including polarizing dye—may be co-extruded or co-stretched.

US Patent:

20170084669, Mar 23, 2017

Filed:

Mar 19, 2015

Appl. No.:

15/126322

Inventors:

- St. Paul MN, US
Seong Taek Lee - Woodbury MN, US
Michael Benton Free - St. Paul MN, US
Nicholas C. Erickson - St. Paul MN, US

International Classification:

H01L 27/32
G02B 5/20
G02B 5/02
H01L 51/52

Abstract:

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.

US Patent:

20170075126, Mar 16, 2017

Filed:

Nov 23, 2016

Appl. No.:

15/359653

Inventors:

- St. Paul MN, US
Seong Taek Lee - Woodbury MN, US
Yeow Leng Tao - Singapore, SG
Kin Sheng Chan - Singapore, SG
Xiaohui Cheng - Singapore, SG

International Classification:

G02B 27/28
G03B 21/14
G02B 5/30

Abstract:

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.

US Patent:

20160118448, Apr 28, 2016

Filed:

Jun 4, 2014

Appl. No.:

14/895046

Inventors:

- Saint Paul MI, US
Adam D. Haag - Woodbury MN, US
Seong Taek Lee - Woodbury MN, US
Sergey Lamansky - Redmond WA, US

International Classification:

H01L 27/32
H01L 51/52

Abstract:

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.