公开(公告)号：US12117636B2

公开(公告)日：2024-10-15

申请号：US17439011

申请日：2020-04-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. Haag ,  Brianna N. Wheeler ,  Matthew B. Johnson ,  William F. Edmonds

IPC: G02B5/30

CPC classification number: G02B5/305 ,  G02B5/3066 ,  G02B5/3083

Abstract: An optical film includes a plurality of alternating first and second layers. The first layers have a first in-plane birefringence, the second layers have a second in-plane birefringence, and the second in-plane birefringence is less than the first in-plane birefringence and greater than 0.03. The first layers may include polyethylene terephthalate homopolymer and the second layers may include glycol-modified co(polyethylene terephthalate). The optical film has a shrinkage along a first direction of greater than 4% and a shrinkage along an orthogonal second direction of greater than 3% when heated at 150° C. for 15 minutes. A glass laminate is prepared by disposing the optical film between glass layers and laminating the optical film to the glass layers.

公开(公告)号：US11726245B2

公开(公告)日：2023-08-15

申请号：US16647707

申请日：2018-10-02

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. Haag ,  Sun-Yong Park ,  Timothy J. Nevitt ,  Brianna N. Wheeler ,  Jody L. Peterson

IPC: G02B1/08 ,  G02B5/30 ,  H01L51/52 ,  H10K50/80 ,  G02B5/08

CPC classification number: G02B5/3041 ,  G02B1/08 ,  G02B5/305 ,  G02B5/3083 ,  H10K50/868 ,  G02B5/0841

Abstract: A partial reflector including a plurality of optical repeat units where each optical repeat unit includes first and second polymer layers is described. A refractive index difference between the first and second polymer layers along a first axis may be Any, a refractive index difference between the first and second polymer layers along an orthogonal second axis may be Δƒχ, where |Δηχ| is at least 0.1 and |Δny| is no more than 0.04. The optical repeat units may have a smallest optical thickness T1 proximate a first side of the optical stack and a largest optical thickness T2 proximate an opposite second side of the optical stack, where (T2−T1)/(T2+T1) is in a range of 0.05 to 0.2, and T2 is at least 350 nm and no more 1250 nm. The partial reflector may be used in a circular polarizer for correcting color shift with view angle in a display.

公开(公告)号：US12253701B2

公开(公告)日：2025-03-18

申请号：US18440325

申请日：2024-02-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. Haag ,  Michael A. Johnson ,  Michelle L. Toy ,  Brianna N. Wheeler ,  David T. Yust

IPC: G02B5/30 ,  B32B7/023 ,  B32B7/03 ,  B32B7/06 ,  B32B27/08 ,  B32B27/30 ,  B32B27/36 ,  B32B38/10 ,  B32B38/14 ,  B32B38/16

Abstract: A film stack includes co-stretched first and second layers. The first layer is stained with iodine and has a glass transition temperature of at least 5° C. greater than a glass transition temperature of the second layer. The second layer has in-plane birefringence of less than 0.02 and a retardance of less than 100 nm.

公开(公告)号：US20230350119A1

公开(公告)日：2023-11-02

申请号：US17780581

申请日：2020-12-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Takashi Fujita ,  Hideaki Shirotori ,  Chikara Abe ,  Matthew B. Johnson ,  Brianna N. Wheeler ,  Adam D. Haag

IPC: G02B5/30

CPC classification number: G02B5/305

Abstract: An optical stack includes a reflective polarizer including a plurality of interference layers and an absorbing polarizer disposed on the reflective polarizer. The plurality of interference layers transmits at least about 85% of an incident light having a first polarization state, reflects at least about 80% of the incident light having a second polarization state, and transmits less than about 0.1% of the incident light having the second polarization state. The absorbing polarizer has a first transmittance for the first polarization state and a second transmittance for the second polarization state. An average of the first and second transmittances is greater than about 0.46. The second transmittance has a first standard deviation. The optical stack has a transmittance for the second polarization state having a second standard deviation which is less than the first standard deviation by at least about 10%. A display includes the optical stack.

公开(公告)号：US12007593B2

公开(公告)日：2024-06-11

申请号：US17044367

申请日：2019-04-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Nicholas C. Erickson ,  David G. Freier ,  Robert L Brott ,  Bing Hao ,  David A. Rosen ,  Stephen M. Menke ,  Bert T. Chien ,  Seong Taek Lee ,  Encai Hao ,  Zhaohui Yang ,  Albert I. Everaerts ,  Yongshang Lu ,  William Blake Kolb ,  Keith R. Bruesewitz ,  Adam D. Haag ,  Sun-Yong Park ,  Timothy J. Nevitt ,  Brianna N. Wheeler ,  Jody L. Peterson ,  Gilles J. Benoit

IPC: G02B5/28 ,  H10K59/35 ,  H10K59/50

CPC classification number: G02B5/287 ,  H10K59/35 ,  H10K59/50

Abstract: 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 WPCSC45 and a white-point axial efficiency of WPAEC. 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 WPCS45 and WPCS045 and respective white-point axial efficiencies of WPAE and WPAE0. WPCS045 and WPAE0 defines a performance point of the display panel to the right of the performance curve and WPCS45 and 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.

公开(公告)号：US20240184029A1

公开(公告)日：2024-06-06

申请号：US18440325

申请日：2024-02-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. Haag ,  Michael A. Johnson ,  Michelle L. Toy ,  Brianna N. Wheeler ,  David T. Yust

IPC: G02B5/30 ,  B32B7/023 ,  B32B7/03 ,  B32B7/06 ,  B32B27/08 ,  B32B27/30 ,  B32B27/36 ,  B32B38/10 ,  B32B38/14

CPC classification number: G02B5/3041 ,  B32B7/023 ,  B32B7/03 ,  B32B7/06 ,  B32B27/08 ,  B32B27/306 ,  B32B27/36 ,  B32B38/10 ,  B32B38/14 ,  G02B5/3016 ,  B32B2250/02 ,  B32B2250/24 ,  B32B2255/10 ,  B32B2307/4026 ,  B32B2307/42 ,  B32B2307/422 ,  B32B2329/04 ,  B32B2367/00 ,  B32B2551/00

Abstract: A film stack includes co-stretched first and second layers. The first layer is stained with iodine and has a glass transition temperature of at least 5° C. greater than a glass transition temperature of the second layer. The second layer has in-plane birefringence of less than 0.02 and a retardance of less than 100 nm.

公开(公告)号：US20230025509A1

公开(公告)日：2023-01-26

申请号：US17757337

申请日：2020-12-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. Haag ,  Michael A. Johnson ,  Michelle L. Toy ,  Brianna N. Wheeler ,  David T. Yust

IPC: G02B5/30 ,  B32B7/023 ,  B32B7/03 ,  B32B7/06 ,  B32B27/08 ,  B32B27/30 ,  B32B27/36 ,  B32B38/10 ,  B32B38/14

Abstract: A film stack comprises an oriented first layer comprising polyvinyl alcohol disposed on an oriented second layer comprising naphthalene dicarboxylate containing copolyester resin. The oriented second layer has in-plane birefringence Δnxy

公开(公告)号：US20240427070A1

公开(公告)日：2024-12-26

申请号：US18828201

申请日：2024-09-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. Haag ,  Brianna N. Wheeler ,  Matthew B. Johnson ,  William F. Edmonds

IPC: G02B5/30

Abstract: An optical film includes a plurality of alternating first and second layers. The first layers have a first in-plane birefringence, the second layers have a second in-plane birefringence, and the second in-plane birefringence is less than the first in-plane birefringence and greater than 0.03. The first layers may include polyethylene terephthalate homopolymer and the second layers may include glycol-modified co (polyethylene terephthalate). The optical film has a shrinkage along a first direction of greater than 4% and a shrinkage along an orthogonal second direction of greater than 3% when heated at 150° C. for 15 minutes. A glass laminate is prepared by disposing the optical film between glass layers and laminating the optical film to the glass layers.

公开(公告)号：US20240280737A1

公开(公告)日：2024-08-22

申请号：US18650643

申请日：2024-04-30

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Nicholas C. Erickson ,  David G. Freier ,  Robert L. Brott ,  Bing Hao ,  David A. Rosen ,  Stephen M. Menke ,  Bert T. Chien ,  Seong Taek Lee ,  Encai Hao ,  Zhaohui Yang ,  Albert I. Everaerts ,  Yongshang Lu ,  William Blake Kolb ,  Keith R. Bruesewitz ,  Adam D. Haag ,  Sun-Yong Park ,  Timothy J. Nevitt (Deceased) ,  Brianna N. Wheeler ,  Jody L. Peterson ,  Gilles J. Benoit

IPC: G02B5/28 ,  H10K59/35 ,  H10K59/50

CPC classification number: G02B5/287 ,  H10K59/35 ,  H10K59/50

Abstract: 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 β030, and a ratio of blue-to-red color mixing weights at 45 degrees of β045, where β045≥β030≥1.05 and 1.5≥β045≥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 β45 and a ratio of blue-to-red color mixing weights at 30 degrees of the display is β30, where β045−0.1≥β45≥2.1−β045 and β030−0.05≥β30≥2.05−β030. Methods of making OLED displays are described.

公开(公告)号：US20230333297A1

公开(公告)日：2023-10-19

申请号：US18337722

申请日：2023-06-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. Haag ,  Sun-Yong Park ,  Timothy J. Nevitt ,  Brianna N. Wheeler ,  Jody L. Peterson

IPC: G02B5/30 ,  G02B1/08 ,  H10K50/80

CPC classification number: G02B5/3041 ,  G02B1/08 ,  G02B5/3083 ,  G02B5/305 ,  H10K50/868 ,  G02B5/0841

Abstract: A partial reflector including a plurality of optical repeat units where each optical repeat unit includes first and second polymer layers is described. A refractive index difference between the first and second polymer layers along a first axis may be Δny, a refractive index difference between the first and second polymer layers along an orthogonal second axis may be Δnx, where |Δnx| is at least 0.1 and |Δny| is no more than 0.04. The optical repeat units may have a smallest optical thickness T1 proximate a first side of the optical stack and a largest optical thickness T2 proximate an opposite second side of the optical stack, where (T2−T1)/(T2+T1) can be a range of 0.05 to 0.2, and T2 can be at least 350 nm and no more 1250 nm. The partial reflector may be used in a circular polarizer for correcting color shift with view angle in a display.