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1. 发明申请

US20230134930A1 HEADS-UP DISPLAY WITH GHOST IMAGE MITIGATION 有权
公开(公告)号：US20230134930A1
公开(公告)日：2023-05-04
申请号：US17977134
申请日：2022-10-31
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： Stephan J. Pankratz , Matthew B. Johnson , William F. Edmonds , Jan Thomas Krapp
IPC分类号： G02B27/00 , G02B27/01 , G02B5/30 , B60K35/00
摘要： A heads-up display for viewing by an eye of a passenger of a vehicle includes a windshield with a reflective polarizer disposed adjacent to a first outermost glass surface of the windshield, a display configured to emit an image toward the windshield, the windshield reflecting between 15% and 85% of the emitted image toward the passenger, and a phase retarding plate disposed in an optical path between the display and the windshield. The windshield is configured to receive the image emitted by the display after the image has been transmitted by the phase retarding plate and to reflect at least a portion of the received image as a reflected image toward the eye of the passenger. The phase retarding plate modifies a polarization state of the reflected image to improve a viewing characteristic of the reflective image depending on a viewing angle of the eye of the passenger.

2. 发明申请

US20220413286A1 STANDARDIZED WEDGE PROFILE IN GLASS LAMINATE FOR GHOST REDUCTION 有权
公开(公告)号：US20220413286A1
公开(公告)日：2022-12-29
申请号：US17770778
申请日：2020-11-13
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： Stephan J. Pankratz , William F. Edmonds , Matthew B. Johnson , John F. VanDerlofske, III
IPC分类号： G02B27/01 , G02B27/00 , G02B5/30 , B60K35/00
摘要： A heads-up display includes a windshield (10) with a standardized wedge profile and an embedded reflective polarizer (20) for p-polarised light and a display (40). The reflective polarizer is disposed between, and spaced apart from, opposing outermost first and second major glass surfaces (11, 12) of the windshield. The heads-up display forms a virtual image for viewing by the eye of a passenger. An image emitted by the display may include a first image ray emitted from a predetermined region of the display and incident on the outermost first major glass surface of the windshield at an angle of incidence greater than about 60 degrees, with at least 90% of the incident first emitted image ray polarized in a plane of incidence of the first emitted image ray. A heads-up display includes windshield (10) with a standardized wedge profile and an embedded reflective polarizer (20) for p-polarised light and a display (40). The reflective polarizer is disposed between, and spaced apart from, opposing outermost first and second major glass surfaces (11, 12) of the windshield. The heads-up display forms a virtual image for viewing by the eye of a passenger. An image emitted by the display may include a first image ray emitted from a predetermined region of the display and incident on the outermost first major glass surface of the windshield at an angle of incidence greater than about 60 degrees, with at least 90% of the incident first emitted image ray polarized in a plane of incidence of the first emitted image ray.

3. 发明申请

US20220350154A1 POLARIZATION OPTIMIZED HEADS-UP DISPLAY 有权
公开(公告)号：US20220350154A1
公开(公告)日：2022-11-03
申请号：US17762138
申请日：2020-09-15
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： Stephan J. Pankratz
IPC分类号： G02B27/01
摘要： An optical system includes a display including an active display region having a maximum lateral dimension D and configured to emit an image for viewing by an eye of a viewer, the active display region including a display center and a predetermined region including the display center, the predetermined region having a largest lateral dimension d, such that d/D≤0.25; a windshield of a vehicle; and an optical film configured to receive the image emitted by the active display region and reflect or transmit at least a portion of the received image toward the windshield, the windshield configured to receive the image reflected or transmitted by the optical film and reflect at least a portion of the received image toward the eye, such that for at least one first location within the predetermined area of the active display region, the emitted image includes a first emitted image cone emitted from the first location, the first emitted image cone including a first emitted central image ray emitted from the first location, wherein the optical film is so oriented as to cause the first emitted central image ray to be substantially polarized in a plane of incidence when incident on the windshield.

4. 发明申请

US20210349248A1 A MULTI-LAYER FILM AND DISPLAY SYSTEM 有权
公开(公告)号：US20210349248A1
公开(公告)日：2021-11-11
申请号：US17250872
申请日：2019-10-09
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： Eileen M. Franey , Stephan J. Pankratz , John F. VanDerlofske, III , Matthew B. Johnson
IPC分类号： G02B5/30
摘要： Embodiments of the present disclosure relate to a multi-layer film and display system. The multi-layer film and display system includes a birefringent film, wherein the birefringent film substantially reduces a visibility of a regular optical pattern generated on the multi-layer film and display system when an at least partially polarized light is incident on the multi-layer film and display system.

5. 发明申请

US20230081054A1 HEADS UP DISPLAY 有权
公开(公告)号：US20230081054A1
公开(公告)日：2023-03-16
申请号：US17798949
申请日：2021-02-05
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： Stephan J. Pankratz
IPC分类号： B60K35/00 , G02B27/01
摘要： A heads up display (HUD) includes a display source for emitting an emitted image, a windshield and an absorbing polarizer. For substantially normally incident light, the absorbing polarizer substantially transmits the incident light polarized along a pass direction, and substantially absorbs the incident light polarized along a block direction. The emitted image includes at least one image ray that is received and transmitted by the absorbing polarizer toward the windshield at a first location of the absorbing polarizer. The transmitted image ray is received and reflected by the windshield at a second location of the windshield. A first normal line of the absorbing polarizer at the first location is substantially parallel to a projection of the transmitted image ray onto the windshield. Further, the pass direction of the absorbing polarizer at the first location is substantially parallel to a second normal line of the windshield at the second location.

6. 发明申请

US20220057632A1 COMPACT HEADS-UP DISPLAY 有权
公开(公告)号：US20220057632A1
公开(公告)日：2022-02-24
申请号：US17414653
申请日：2019-12-17
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： Zhisheng Yun , Hao Wu , Stephen J. Willett , Craig R. Schardt , Stephan J. Pankratz , Gilles J. Benoit
IPC分类号： G02B27/01 , G02B27/28 , G02F1/1335
摘要： An optical system, including a reflective polarizer, and a display and a mirror disposed on a same side of, and generally facing, the reflective polarizer. The reflective polarizer may transmit at least 80% of incident light having a first polarization state and may reflect at least 80% of incident light having a second polarization state, and the mirror may reflect at least 80% of the incident light for each of the first and second polarization states. The central locations of the display, reflective polarizer, and mirror may define a midplane which includes first, second, and third regions, such that the first region includes portions of the image rays that pass at least once across the region, the second region includes portions of the image rays that pass at least twice across the region, and the third region includes portions of the image rays that pass three times across the region. The first, second, and third regions may have respective areas A1, A2, and A3, such that A3/A2 is greater than or equal to about 0.20, or 0.22, or 0.24, or 0.26, or 0.28, or 0.30.

7. 发明申请

US20230017066A1 OPTICAL SYSTEM AND HEADS UP DISPLAY SYSTEMS 有权
公开(公告)号：US20230017066A1
公开(公告)日：2023-01-19
申请号：US17781863
申请日：2020-11-30
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： Stephan J. Pankratz , Nathaniel K. Naismith
IPC分类号： G02B5/30 , G02B27/01 , G02F1/13363 , B60K35/00
摘要： An optical system includes a display system including a display having first and second display pixels interspersed with each other across the display. The first and second display pixels emit superimposed different respective first and second images polarized along the first direction. The display system includes a patterned retarder having pluralities of first and second retarder pixels aligned and registered with the respective first and second display pixels in one-to-one correspondence. The first retarder pixels are configured to receive and transmit the first emitted image as the first output image polarized along the first direction. The second retarder pixels are configured to receive, change the polarization direction, and transmit the second emitted image as the second output image polarized along the second direction. A reflective polarizer is configured to receive the first and second output images and substantially transmit the first output image and substantially reflect the second output image.

8. 发明申请

US20230013999A1 OPTICAL SYSTEMS FOR HUD SYSTEMS 有权
公开(公告)号：US20230013999A1
公开(公告)日：2023-01-19
申请号：US17797475
申请日：2021-02-01
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： Stephan J. Pankratz
IPC分类号： G02B27/01 , B60K35/00
摘要： An optical system includes a display including an active display region configured to emit an image. The active display region includes a predetermined region including a display center. A windshield of a vehicle includes an embedded reflective polarizer. The reflective polarizer reflects between about 20% to about 40% of incident light polarized along a first direction, and transmits at least 60% of the incident light polarized along a second direction. The reflective polarizer receives the image emitted by the active display region and reflects a portion toward the eye. For at least one first location within the predetermined region, the emitted image includes an image cone having an emitted central image ray emitted from the first location. The emitted central image ray is polarized along a third direction when incident on the windshield in an incident plane. The first and third directions are substantially parallel to the incident plane.

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