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公开(公告)号：US20250093657A1
公开(公告)日：2025-03-20
申请号：US18883836
申请日：2024-09-12
Applicant: Applied Materials, Inc.
Inventor： Simon LORENZO , Evan WANG , Kevin MESSER , Samarth BHARGAVA
IPC: G02B27/01
Abstract: Embodiments herein are generally directed to a waveguide display assembly and a near-eye display system incorporating the waveguide display assembly. In an embodiment, the waveguide display includes a light engine, a waveguide combiner, an input coupling grating, and one or more coupling gratings exposed to an ambient environment of the waveguide display assembly. The waveguide combiner extends across a user's eye at a wrap angle θwrap(xy) relative to a waveguide plane, and the light engine is configured to project light toward the input coupling grating at a compensation angle θCl so as to increase the grating vector of the exposed gratings and reduce the angles and wavelengths at which light can be diffracted and coupled by the exposed grating into the waveguide combiner to the user's eye.
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公开(公告)号：US20250093660A1
公开(公告)日：2025-03-20
申请号：US18885214
申请日：2024-09-13
Applicant: Applied Materials, Inc.
Inventor： Simon LORENZO , David Alexander SELL
Abstract: Embodiments of the present disclosure relate to devices and methods related to relate to augmented reality waveguide combiners. The device includes a waveguide combiner, the waveguide combiner includes an input coupler operable to receive a light and in-couple the light into the waveguide combiner, an exit pupil expander (EPE) adjacent to a grating of the input coupler, the EPE having a laddered structure, the laddered structure comprising at least one band, the at least one band comprising a plurality of grating structures, at least one grating structure of the plurality of grating structures has a varying depth, a varying duty cycle, or a varying pitch that is different than a depth, a duty cycle, or pitch than an adjacent grating structure of the plurality of grating structures, and an output coupler operable to receive the light from the EPE and transmit the light onto a user field of view (FOV).
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Patent Agency Ranking
公开(公告)号：US20250012960A1
公开(公告)日：2025-01-09
申请号：US18746195
申请日：2024-06-18
Applicant: Applied Materials, Inc.
Inventor： Kunal SHASTRI , Evan WANG , Simon LORENZO , David Alexander SELL , Kevin MESSER , Samarth BHARGAVA
Abstract: Embodiments of the disclosure provided herein include waveguide combiners. More specifically, embodiments described herein provide for waveguide combiners with a waveguide layer and a coating having a tapered portion disposed thereover. The waveguide includes one or more gratings, the one or more gratings including a plurality of grating structures disposed over a waveguide substrate, wherein the grating structures include a waveguide material, and the plurality of grating structures include exterior grating structures at outer edges of the one or more gratings. A waveguide layer is disposed over the waveguide substrate between the exterior grating structures and an edge of the waveguide substrate, the waveguide layer including the waveguide material, and a coating disposed over the waveguide layer, the coating having a tapered portion that is tapered from at least one of the exterior grating structures to a planar portion of the coating.
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4.发明申请公开(公告)号：US20250093573A1
公开(公告)日：2025-03-20
申请号：US18885271
申请日：2024-09-13
Applicant: Applied Materials, Inc.
Inventor： Simon LORENZO , Evan WANG , Kunal SHASTRI , Samarth BHARGAVA
Abstract: A method and apparatus for a device including a first waveguide, the first waveguide having a first input coupler operable to receive a first color light and in-couple the first color light into the first waveguide, and a coating area adjacent to a grating of the first input coupler, the coating area operable to receive a second color light, the coating area having an anti-reflective coating with a transmission refractive index such that in operation the second color light is transmitted through the first waveguide to a second waveguide, the second waveguide below the first waveguide, the second waveguide having a second input coupler disposed below and aligned with the coating area, the second input coupler operable to receive the second color light and in-couple the second color light into the second waveguide.
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公开(公告)号：US20250067918A1
公开(公告)日：2025-02-27
申请号：US18812807
申请日：2024-08-22
Applicant: Applied Materials, Inc.
Inventor： Evan WANG , Yingnan LIU , Simon LORENZO , David Alexander SELL
Abstract: A waveguide combiner is provided. The waveguide combiner includes a waveguide combiner substrate. The waveguide combiner provides a plurality of staircase structures disposed on the substrate. Each staircase structure comprises a plurality of staircase steps. Each staircase step has a staircase width that is the same. The plurality of staircase steps have a trim width from an initial staircase step to a final staircase step. The plurality of staircase steps includes a top step having a top width.
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公开(公告)号：US20250052939A1
公开(公告)日：2025-02-13
申请号：US18798061
申请日：2024-08-08
Applicant: Applied Materials, Inc.
Inventor： Yingnan LIU , Samarth BHARGAVA , Kevin MESSER , Evan WANG , David Alexander SELL , Simon LORENZO
Abstract: Embodiments of the present disclosure include apparatus and methods for optical devices. In one embodiment, a method for forming an optical device generally includes disposing a first material device layer on a substrate, patterning a portion of the first material device layer to form a first plurality of device structures in the first material device layer, disposing a second material device layer on an un-patterned portion of the first device material layer, and patterning the second material device layer to form a second plurality of device structures disposed on the first material device layer.
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公开(公告)号：US20240418992A1
公开(公告)日：2024-12-19
申请号：US18593292
申请日：2024-03-01
Applicant: Applied Materials, Inc.
Inventor： David Alexander SELL , Evan WANG , Simon LORENZO , Kevin MESSER
Abstract: Single-sheet waveguide combiners having increased field-of-view for multiple colors by enabling separate action on different colors without creating spurious paths are provided. A waveguide includes a first region including an in-coupler (IC) grating for a first color; a second region including an IC grating for a second color and a third color; a third region including an out-coupler (OC) grating for the first color and an eye-pupil-expander (EPE) grating for the second color and the third color; a fourth region including an EPE grating for the first color; and a fifth region including an OC grating for the second color and the third color and an EPE grating for the first color, wherein the fifth region at least partially overlaps with the third region.
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