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公开(公告)号：US20240353684A1
公开(公告)日：2024-10-24
申请号：US18756771
申请日：2024-06-27
Applicant: Apple Inc.
Inventor： Runyu Zhang , Vikrant Bhakta , Hyungryul Choi , Cameron A. Harder , Xiaonan Wen , Zhenbin Ge , Xianwei Zhao
IPC: G02B27/01
CPC classification number: G02B27/0172 , G02B2027/0118 , G02B2027/0174
Abstract: A display system may include a waveguide with an output coupler that couples image light out of the waveguide and towards an eye box. The output coupler may also transmit world light from real-world objects towards the eye box. A bias lens may pass the world light to the output coupler. An adjustable tint layer having multiple states that involve transmission of different amounts of the world light may be disposed between the bias lens and the output coupler. Different states may impart different colors and/or may impart a gradient transmission characteristic to the world light. The bias lens itself may form the adjustable tint layer. The adjustable tint layer may have a transparent electrode layer that is provided with one or more AC voltages that heat the adjustable tint layer. The adjustable tint layer may be a self-switching electrochromic device that includes a transparent solar cell.
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公开(公告)号：US12111467B2
公开(公告)日：2024-10-08
申请号：US16409681
申请日：2019-05-10
Applicant: Apple Inc.
Inventor： Vikrant Bhakta , Hyungryul Choi , Guolin Peng , Scott M. DeLapp
CPC classification number: G02B27/0172 , G02B3/0037 , G02B27/1026 , G02B27/126 , G02B27/30 , G02B2027/0114 , G02B2027/013
Abstract: An electronic device may have a spatial light modulator. Control circuitry in the electronic device may use the spatial light modulator to generate images. A light source may be used to produce illumination for the spatial light modulator. An optical system may direct the illumination onto the spatial light modulator and may direct corresponding reflected image light towards eye boxes for viewing by a user. Head-mounted support structures may be used to support the spatial light modulator, light source, and optical system. The light source may include light-emitting elements such as light-emitting diodes or lasers. Multiple light-emitting elements may be provided in the light source in a one-dimensional or two-dimensional array. During operation, the control circuitry can individually adjust the light-emitting elements.
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公开(公告)号：US11852819B2
公开(公告)日：2023-12-26
申请号：US17479322
申请日：2021-09-20
Applicant: Apple Inc.
Inventor： Graham B. Myhre , Guolin Peng , Hyungryul Choi , Scott M. DeLapp , Vikrant Bhakta
CPC classification number: G02B27/0172 , G02B27/0093 , G02B27/283 , G02B27/1066 , G02B2027/014 , G02B2027/0138 , G02B2027/0147
Abstract: An electronic device may include a display module that produces foveated images having high and low resolution regions. The module may include a reflective display panel that produces first reflected light during first time periods and second reflected light during second time periods. The first reflected light may reflect off of a beam splitter to form the low resolution region of the foveated image. The second reflected light may be transmitted by the beam splitter, de-magnified by a lens, and redirected by an optical steering element to produce the high resolution region at a desired, adjustable, location in the foveated image. The reflective display panel may be replaced by sets of emissive display panels that concurrently display the high and low resolution regions in the foveated image. The sets of emissive display panels may be replaced by front-lit reflective display panels.
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公开(公告)号：US11822165B1
公开(公告)日：2023-11-21
申请号：US16875891
申请日：2020-05-15
Applicant: Apple Inc.
Inventor： Cihan Yilmaz , Supriya Goyal , Shih-Chyuan Fan Jiang , Paul V. Johnson , Se Hyun Ahn , Cheng Chen , Yuan Chen , Hyungryul Choi , Zhibing Ge , Christiaan A. Ligtenberg , Dinesh C. Mathew , Hyunmin A. Song , Chaohao Wang , Jiaying Wu
IPC: G02F1/13 , G02F1/163 , G02F1/1523 , G02F1/1343 , G02F1/1524 , G02F1/155
CPC classification number: G02F1/1323 , G02F1/13439 , G02F1/155 , G02F1/1524 , G02F1/1525 , G02F1/163
Abstract: A display may have display layers that form an array of pixels. An angle-of-view adjustment layer may overlap the display layers. The angle-of-view adjustment layer may include an array of adjustable light blocking structures formed from electrochromic material. The electrochromic material may be interposed between first and second electrode layers. When it is desired to operate the display in a private viewing mode, control circuitry may apply a current to the first and second electrodes that causes the electrochromic material to become more opaque, thereby restricting the angle of view of the display. When it is desired to operate the display in a public viewing mode, control circuitry may apply a current to the first and second electrodes that causes the electrochromic material to become more transparent, thereby opening up the angle of view of the display.
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公开(公告)号：US20230341690A1
公开(公告)日：2023-10-26
申请号：US18156309
申请日：2023-01-18
Applicant: Apple Inc.
Inventor： Vikrant Bhakta , Guolin Peng , Hyungryul Choi , Jose A. Dominguez-Caballero
IPC: G02B27/01
CPC classification number: G02B27/0172 , G02B2027/0114 , G02B2027/0118 , G02B2027/0174
Abstract: A display may include illumination optics, a spatial modulator, and a waveguide. The illumination optics may produce illumination that is modulated by the spatial modulator to produce image light. The waveguide may direct the image light towards an eye box. The illumination optics may include light source sets that produce the illumination. Each set may include a low power light source and a high power light source. In a first state, the high and low power light sources may be active. In a second state, the low power light sources may be active. Control circuitry may adjust between the first and second states based on image data. The second state may be used when virtual objects in the image data are confined to a peripheral region of the field of view of the eye box.
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Patent Agency Ranking
公开(公告)号：US11442271B2
公开(公告)日：2022-09-13
申请号：US16609066
申请日：2018-06-05
Applicant: Apple Inc.
Inventor： Hyungryul Choi , Eric J Hansotte , Guolin Peng , Paul J. Gelsinger-Austin , Se Baek Oh
Abstract: An electronic device may have a reflective display with a pixel array that generates images. The reflective display may be illuminated by an illumination system. Light from the illumination system may be reflected by the pixel array as image light. The image light may be provided to a viewer using a waveguide with diffractive input and output couplers. The illumination system may have a waveguide. The illumination system may also have a light source such as one or more light-emitting diodes. Light from the light source may be coupled into the waveguide of the illumination system by a diffractive coupler such as volume hologram that serves as an input coupler. Light from the light source may be routed to the display to illuminate the display using the waveguide in the illumination system and a diffractive coupler such as a volume hologram that serves as an output coupler.
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公开(公告)号：US20200089014A1
公开(公告)日：2020-03-19
申请号：US16546157
申请日：2019-08-20
Applicant: Apple Inc.
Inventor： Guolin Peng , Eric J. Hansotte , Francesco Aieta , Graham B. Myhre , Hyungryul Choi , Nan Zhu , Paul J. Gelsinger-Austin , Se Baek Oh , Scott M. DeLapp , Bradley C. Steele
Abstract: An electronic device may have a display that emits image light, a waveguide, and an input coupler that couples the image light into the waveguide. Beam splitter structures may be embedded within the waveguide. The beam splitter structures may partially reflect the image light multiple times and may serve to generate replicated beams of light that are coupled out of the waveguide by an output coupler. The beam splitter structures may replicate the beams across two dimensions to provide an eye box with uniform-intensity light from the display across its area. The beam splitter structures may include stacked partially reflective beam splitter layers, sandwiched transparent substrate layers having different indices of refraction, a thick volume hologram interposed between substrate layers, or combinations of these or other structures. The reflectivity of the beam splitter structures may vary discretely or continuously across the lateral area of the waveguide.
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公开(公告)号：US20240302664A1
公开(公告)日：2024-09-12
申请号：US18670007
申请日：2024-05-21
Applicant: Apple Inc.
Inventor： Graham B. Myhre , Eric J. Hansotte , Guolin Peng , Hyungryul Choi , Se Baek Oh , Paul Gelsinger-Austin
IPC: G02B27/01
CPC classification number: G02B27/0172 , G02B6/0023 , G02B6/0035 , G02B2027/0123 , G02B2027/0174 , G02B2027/0178
Abstract: An electronic device may include a display system for presenting images close to a user's eyes. The display system may include a display unit that directs light and an optical system that redirects the light from the display unit towards a user's eyes. The optical system may include an input coupler and an output coupler formed on a waveguide. The input coupler may redirect light from the display unit so that it propagates in the waveguide towards the output coupler. The output coupler may redirect the light from the input coupler so that it exits the waveguide towards the user's eyes. A light-redirecting element may be used to redirect edge light that would otherwise be outside of the user's field of view towards the user's eyes.
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公开(公告)号：US11994681B2
公开(公告)日：2024-05-28
申请号：US17477321
申请日：2021-09-16
Applicant: Apple Inc.
Inventor： Vikrant Bhakta , Guolin Peng , Hyungryul Choi , Kevin A. Keilbach , Scott M. DeLapp
CPC classification number: G02B27/0172 , G02B6/0016 , G02B6/003 , G02B2027/0123 , G02B2027/0147 , G02B2027/0163
Abstract: An electronic device may include a display module that generates light and an optical system that redirects the light towards an eye box. The system may include an input coupler on a waveguide and a lens that directs the light towards the input coupler. The input coupler may include a prism having a reflective surface that reflects the light into the waveguide. The reflective surface may be curved to provide the light with an optical power. The prism may be configured to expand a field of view of the light. A birefringent beam displacer may expand the effective pupil size of the light. The lens may include lens elements that converge the light at a location between the lens elements and the waveguide. A switchable panel may be placed at the location and toggled between first and second orientations to increase the effective resolution of the light.
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公开(公告)号：US11803056B2
公开(公告)日：2023-10-31
申请号：US16546157
申请日：2019-08-20
Applicant: Apple Inc.
Inventor： Guolin Peng , Eric J. Hansotte , Francesco Aieta , Graham B. Myhre , Hyungryul Choi , Nan Zhu , Paul J. Gelsinger-Austin , Se Baek Oh , Scott M. DeLapp , Bradley C. Steele
CPC classification number: G02B27/0172 , G02B27/12 , G02B27/14 , G02B2027/0174
Abstract: An electronic device may have a display that emits image light, a waveguide, and an input coupler that couples the image light into the waveguide. Beam splitter structures may be embedded within the waveguide. The beam splitter structures may partially reflect the image light multiple times and may serve to generate replicated beams of light that are coupled out of the waveguide by an output coupler. The beam splitter structures may replicate the beams across two dimensions to provide an eye box with uniform-intensity light from the display across its area. The beam splitter structures may include stacked partially reflective beam splitter layers, sandwiched transparent substrate layers having different indices of refraction, a thick volume hologram interposed between substrate layers, or combinations of these or other structures. The reflectivity of the beam splitter structures may vary discretely or continuously across the lateral area of the waveguide.
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