US20200159036A1 - Optical display system with enhanced resolution, methods, and applications - Google Patents
Optical display system with enhanced resolution, methods, and applications Download PDFInfo
- Publication number
- US20200159036A1 US20200159036A1 US16/621,283 US201716621283A US2020159036A1 US 20200159036 A1 US20200159036 A1 US 20200159036A1 US 201716621283 A US201716621283 A US 201716621283A US 2020159036 A1 US2020159036 A1 US 2020159036A1
- Authority
- US
- United States
- Prior art keywords
- image
- display
- polarization
- display system
- component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
- G02B27/4205—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive optical element [DOE] contributing to image formation, e.g. whereby modulation transfer function MTF or optical aberrations are relevant
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/286—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
- G02F1/292—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection by controlled diffraction or phased-array beam steering
Definitions
- aspects and embodiments of the invention pertain to optical display systems. Particular embodiments pertain to augmented reality systems that include a controllable optical image-generating apparatus and an optical image-viewing apparatus, associated methods, and applications thereof and to virtual reality systems that include a controllable optical image display/view apparatus, associated methods, and applications thereof. More particularly, aspects and embodiments of the invention pertain to optical display systems, and associated methods, in which a display (viewable) pixels can be offset by a portion of a pixel width. Applications include but are not limited to wearable display devices including virtual and/or augmented reality devices.
- Virtual reality is an emerging wearable display technology for applications including but not limited to immersive video games and interactive three-dimensional (3D) graphics.
- a critical issue with these types of display devices is the low image resolution. Due to the high angular resolution of human eye ( ⁇ 1 arcminute), when a display panel is magnified with a lens, as in cases of virtual reality headsets such as HTC Vive, Google cardboard/daydream or Oculus Rift, the pixel resolution of a 2160 ⁇ 1200 panel can only provide an angular resolution of ⁇ 5.5 arcmin (for each eye). Even when the display panel is improved to 4320 ⁇ 2400, the resolution is improved to ⁇ 2.75 arcmin. In order to achieve the high angular resolution of human eye ( ⁇ 1 arcminute), the minimal required resolution would be 11880 ⁇ 6600.
- Another possible approach to enhance resolution and thus the user experience without altering the display panel is to produce an offset to the display pixels in time domain, such as in U.S. Pat. Nos. 5,369,266 and 6,243,055 B1, where one or more birefringent crystal plates are used to produce an offset for different polarized light to create an offset of ⁇ half pixel. At least a polarization rotator is needed to switch between two polarization states.
- time-multiplexing i.e., display an image for the first frame, and an offset image for the second, offset frame
- an effectively doubled-resolution display can be obtained.
- U.S. Pat. No. 5,689,283 discloses an optical device based on the same time-multiplexing concept. In this device, the pixel offset is realized through a rotating prism-array. A similar design is disclosed in US Patent 2004/0041784 A1.
- the inventors have thus recognized the advantages and benefits of an image resolution enhancement apparatus and method that is optically and mechanically simpler, lighter, less expensive, and better performing than what is currently available.
- an aspect of the present invention is an optical display/viewing system.
- the optical display system includes a controllable optical image-generating display apparatus and an optical image viewing apparatus.
- the optical image-generating apparatus has an optical axis and includes a programmable/controllable (virtual) image-generating component adapted to generate a polarized image output; a lens disposed to magnify and collimate the image-generating component, and an image offset component disposed to accept the collimated image output.
- the optical display system may include, alone or in various combinations as one skilled in the art would understand, the following limitations, features, characteristics and/or elements:
- FIG. 1 is a top schematic plan view of an optical display system according to an exemplary virtual reality application embodiment of the invention.
- FIG. 2 is a top schematic plan view of an optical display system according to an exemplary virtual reality application embodiment of the invention.
- FIG. 3 is a sketch showing one possible shifting direction of pixels, according to an illustrative embodiment.
- FIG. 4 is a sketch showing another possible shifting direction of pixels, according to an illustrative embodiment.
- FIG. 5 photographically shows a preliminary experimental result of an embodied device exploiting a resolution enhancement technique, according to an illustrative embodiment.
- FIG. 1 schematically illustrates an optical display system 100 .
- the display system comprises a programmable/controllable (virtual image) display component 11 that is optically followed by a lens 12 and an electrically switchable image offset component 13 .
- the displayed image is presented to observer's eye 14 (not part of the invention per se) for viewing.
- the display component 11 can be a LCD display, a LCoS display, a micro-LED display, an OLED display, a fiber scanning display, or other display component as known in the art.
- the display component outputs or is adapted to output a polarized light (virtual) image, most advantageously a linearly polarized or circularly polarized image.
- display components such as LCD and LCoS displays produce polarized outputs.
- a polarizer advantageously a reflective polarizer (not shown) may be disposed on the output side of the display component as known in the art to effect a desired polarization state image output.
- the lens 12 can be a plano-convex lens, a biconvex lens, an aspheric lens or a Fresnel lens. This lens serves to magnify and project the display image to a proper viewable distance which is preferably in the range from 0 to 3 diopters.
- This shift can be set so that all pixels move vertically or horizontally by the pixels' half angular size (d ⁇ /2), such as shown in FIG. 3 (which only shows the case of shifting in horizontal direction, but the same applies to vertical shifting).
- the pixels can be switched between the original location (solid lines) 31 as frame 1 , and the shifted location (dashed lines) 32 as frame 2 .
- This shift can also be set to move pixels diagonally (45° with respect to a unit pixel) by approximated ⁇ 2 ⁇ d ⁇ as shown in FIG. 4 .
- the pixels can be switched between the original location (solid lines) 41 as frame 1 , and the shifted location (dashed lines) 42 as frame 2 .
- the switching of the polarization dependent optical component will be synchronized with the computed display sub-frame images such that the polarization dependent optical component is switched on when frame 1 is displayed and the polarization dependent optical component is switched off when frame 2 is displayed.
- FIG. 2 schematically illustrates another embodied optical display system 200 .
- the display system comprises a programmable/controllable (virtual image) display component 21 that is optically followed by a polarization rotator 22 .
- the polarization rotator is optically followed by a lens 23 , and then followed by an image offset component 24 .
- the displayed image is presented to an observer's eye 25 for viewing.
- the display component 21 can be a LCD display, a LCoS display, a micro-LED display, an OLED display, a fiber scanning display, or other display component as known in the art.
- the display component outputs or is adapted to output a polarized light (virtual) image, most advantageously a linearly polarized or circularly polarized image.
- display components such as LCD and LCoS displays produce polarized outputs.
- a polarizer advantageously a reflective polarizer, will be disposed on the output side of the display component as known in the art to effect a desired polarization state image output.
- the polarization rotator 22 can be a twisted nematic liquid crystal cell or a ferroelectric liquid crystal cell. This polarization rotator serves to switch the polarization between linearly polarized light or circularly polarized light.
- the polarization rotator 22 can also be disposed between the lens 23 and the electrically switchable image offset component 24 .
- the lens 23 can be a plano-convex lens, a biconvex lens, an aspheric lens, or a Fresnel lens. This lens serves to magnify and project the display image to a proper viewable distance which is preferably in the range from 0 to 3 diopters.
- FIG. 5 is a preliminary experimental result of device exploiting resolution enhancement technique disclosed in this patent.
- FIG. 5( a ) shows the display image without resolution enhancement
- FIG. 5( b ) shows the display image with resolution enhancement.
- the detailed texture is visible in FIG. 5( b ) after resolution enhancement.
Abstract
Description
- This application claims the benefit of International application number PCT/US17/38749 filed Jun. 22, 2017, the subject matter of which is incorporated herein by reference in its entirety.
- The invention was made with funding from the AFOSR under project 6501-6269. The U.S. government has certain rights in the invention.
- Aspects and embodiments of the invention pertain to optical display systems. Particular embodiments pertain to augmented reality systems that include a controllable optical image-generating apparatus and an optical image-viewing apparatus, associated methods, and applications thereof and to virtual reality systems that include a controllable optical image display/view apparatus, associated methods, and applications thereof. More particularly, aspects and embodiments of the invention pertain to optical display systems, and associated methods, in which a display (viewable) pixels can be offset by a portion of a pixel width. Applications include but are not limited to wearable display devices including virtual and/or augmented reality devices.
- Virtual reality is an emerging wearable display technology for applications including but not limited to immersive video games and interactive three-dimensional (3D) graphics. A critical issue with these types of display devices is the low image resolution. Due to the high angular resolution of human eye (˜1 arcminute), when a display panel is magnified with a lens, as in cases of virtual reality headsets such as HTC Vive, Google cardboard/daydream or Oculus Rift, the pixel resolution of a 2160×1200 panel can only provide an angular resolution of ˜5.5 arcmin (for each eye). Even when the display panel is improved to 4320×2400, the resolution is improved to ˜2.75 arcmin. In order to achieve the high angular resolution of human eye (˜1 arcminute), the minimal required resolution would be 11880×6600.
- Another possible approach to enhance resolution and thus the user experience without altering the display panel is to produce an offset to the display pixels in time domain, such as in U.S. Pat. Nos. 5,369,266 and 6,243,055 B1, where one or more birefringent crystal plates are used to produce an offset for different polarized light to create an offset of ˜half pixel. At least a polarization rotator is needed to switch between two polarization states. Through time-multiplexing (i.e., display an image for the first frame, and an offset image for the second, offset frame), an effectively doubled-resolution display can be obtained.
- U.S. Pat. No. 5,689,283 discloses an optical device based on the same time-multiplexing concept. In this device, the pixel offset is realized through a rotating prism-array. A similar design is disclosed in US Patent 2004/0041784 A1.
- However, the abovementioned devices and associated methods are only suitable for projection systems, where the form-factor is not critical. They are impractical for the requirements of compact, head-mounted displays.
- More recently, a super-resolution display was proposed in [F. Heide, D. Lanman, D. Reddy, J. Kautz, K. Pulli, D. Luebke, “Cascaded Displays: Spatiotemporal Superresolution using Offset Pixel Layers,” ACM Transactions on Graphics, Vol. 33, No. 4, Article 60, (2014)] by stacking LCD panels with offset pixels. Although the device is relatively compact, significant light loss is inevitable due to the low transmittance of LCD panels.
- The inventors have thus recognized the advantages and benefits of an image resolution enhancement apparatus and method that is optically and mechanically simpler, lighter, less expensive, and better performing than what is currently available.
- An aspect of the present invention is an optical display/viewing system. In an exemplary, non-limiting embodiment the optical display system includes a controllable optical image-generating display apparatus and an optical image viewing apparatus. In a non-limiting exemplary embodiment, the optical image-generating apparatus has an optical axis and includes a programmable/controllable (virtual) image-generating component adapted to generate a polarized image output; a lens disposed to magnify and collimate the image-generating component, and an image offset component disposed to accept the collimated image output. In various non-limiting embodiments, the optical display system may include, alone or in various combinations as one skilled in the art would understand, the following limitations, features, characteristics and/or elements:
-
- wherein the polarized image output is one of linear and circular polarized;
- wherein the image offset component is an electrically switchable, diffractive liquid crystal wave-plate;
- further comprising a polarization rotator;
- further comprising a support structure such that the optical display system is wearable by a viewer.
-
FIG. 1 is a top schematic plan view of an optical display system according to an exemplary virtual reality application embodiment of the invention. -
FIG. 2 is a top schematic plan view of an optical display system according to an exemplary virtual reality application embodiment of the invention. -
FIG. 3 is a sketch showing one possible shifting direction of pixels, according to an illustrative embodiment. -
FIG. 4 is a sketch showing another possible shifting direction of pixels, according to an illustrative embodiment. -
FIG. 5 photographically shows a preliminary experimental result of an embodied device exploiting a resolution enhancement technique, according to an illustrative embodiment. -
FIG. 1 schematically illustrates anoptical display system 100. The display system comprises a programmable/controllable (virtual image)display component 11 that is optically followed by alens 12 and an electrically switchableimage offset component 13. The displayed image is presented to observer's eye 14 (not part of the invention per se) for viewing. - The
display component 11 can be a LCD display, a LCoS display, a micro-LED display, an OLED display, a fiber scanning display, or other display component as known in the art. The display component outputs or is adapted to output a polarized light (virtual) image, most advantageously a linearly polarized or circularly polarized image. Typically, display components such as LCD and LCoS displays produce polarized outputs. If the display output is not inherently polarized, as produced by, e.g., a micro-LED display, an OLED display, or a fiber scanning display, a polarizer, advantageously a reflective polarizer (not shown) may be disposed on the output side of the display component as known in the art to effect a desired polarization state image output. - The
lens 12 can be a plano-convex lens, a biconvex lens, an aspheric lens or a Fresnel lens. This lens serves to magnify and project the display image to a proper viewable distance which is preferably in the range from 0 to 3 diopters. - The polarization dependent
optical component 13, advantageously a liquid crystal diffractive wave-plate similar to that disclosed in [Svetlana Serak, Nelson Tabiryan, and Boris Zeldovich, “High-efficiency 1.5 μm thick optical axis grating and its use for laser beam combining,” Opt. Lett. 32, 169-171 (2007)] serves to deflect the input circularly polarized light by a small angle, dϕ, 15. When voltage is applied, the deflected angle is changed to a different value, dϕ′, 16. Most advantageously, dϕ′=0 (i.e., when applying voltage, the light is not deflected) and hence the change in deflection angle is simply dϕ. When the display image is magnified by thelens 12, it is more convenient to describe the pixel density by its angular size, dθ. For example, if a pixel is 40 μm in width (w), when magnified by a lens with a 4 cm focal length (f) to very far, ˜0 diopter (nearly infinity), the angular size of the pixel will be dθ≅w/f=40/40000=0.001 rad≅0.0573° or 3.4 arcmin. Other settings of the display and lens can provide different dθ values for a desired effect. When a voltage is applied to the diffractive liquid crystal wave-plate, it induces a shift in pixel deflection angle, dϕ, in angular space. This shift can be set so that all pixels move vertically or horizontally by the pixels' half angular size (dθ/2), such as shown inFIG. 3 (which only shows the case of shifting in horizontal direction, but the same applies to vertical shifting). By switching on and off repeatedly, the pixels can be switched between the original location (solid lines) 31 as frame 1, and the shifted location (dashed lines) 32 as frame 2. This shift can also be set to move pixels diagonally (45° with respect to a unit pixel) by approximated √2×dθ as shown inFIG. 4 . By switching on and off repeatedly, the pixels can be switched between the original location (solid lines) 41 as frame 1, and the shifted location (dashed lines) 42 as frame 2. Therefore, through the modulation of the voltage, spatial-shifting of the pixels can be realized. By dividing one high resolution image into two sub-frames, frame 1 and frame 2, one can provide computationally optimized images in frame 1 and frame 2 with one of the frames being shifted. The combination of these two frames of the computationally optimized image will then provide enhanced resolution of the viewed image. Advantageously, the switching of the polarization dependent optical component will be synchronized with the computed display sub-frame images such that the polarization dependent optical component is switched on when frame 1 is displayed and the polarization dependent optical component is switched off when frame 2 is displayed. -
FIG. 2 schematically illustrates another embodiedoptical display system 200. The display system comprises a programmable/controllable (virtual image)display component 21 that is optically followed by apolarization rotator 22. The polarization rotator is optically followed by alens 23, and then followed by an image offsetcomponent 24. The displayed image is presented to an observer'seye 25 for viewing. - The
display component 21 can be a LCD display, a LCoS display, a micro-LED display, an OLED display, a fiber scanning display, or other display component as known in the art. The display component outputs or is adapted to output a polarized light (virtual) image, most advantageously a linearly polarized or circularly polarized image. Typically, display components such as LCD and LCoS displays produce polarized outputs. If the display output is not inherently polarized, as produced by, e.g., a micro-LED display, an OLED display, or a fiber scanning display, a polarizer, advantageously a reflective polarizer, will be disposed on the output side of the display component as known in the art to effect a desired polarization state image output. - The
polarization rotator 22 can be a twisted nematic liquid crystal cell or a ferroelectric liquid crystal cell. This polarization rotator serves to switch the polarization between linearly polarized light or circularly polarized light. Thepolarization rotator 22 can also be disposed between thelens 23 and the electrically switchable image offsetcomponent 24. - The
lens 23 can be a plano-convex lens, a biconvex lens, an aspheric lens, or a Fresnel lens. This lens serves to magnify and project the display image to a proper viewable distance which is preferably in the range from 0 to 3 diopters. - The polarization dependent
optical component 24, most advantageously a liquid crystal diffractive wave-plate serves to deflect the input circularly polarized light by a small angle, dϕ, todifferent direction 26, or 28 (with respect to the original direction 27) depending on the input polarization (hence the change in deflection angle is 2×dϕ). By switching the polarization rotator, it induces a shift in pixels by 2×dϕ in angular space. This shift can be set so that all pixels move vertically or horizontally by the half angular pixel size (dθ/2), such as the case shown inFIG. 3 (which only shows the case of shifting in the horizontal direction, but the same applies to vertical shifting). By switching on and off repeatedly, the pixels can be switched between the original location (solid lines) 31 as frame 1, and the shifted location (dashed lines) 32 as frame 2. This shift can also be set to move pixels diagonally (45° with respect to unit pixel) by approximated √2×dθ as shown inFIG. 4 . By switching on and off repeatedly, the pixels can be switched between the original location (solid lines) 41 as frame 1, and the shifted location (dashed lines) 42 as frame 2. Therefore, through the modulation of the voltage, spatial-shifting of the pixels can be realized. By dividing one high resolution images into two sub-frames, frame 1 and frame 2, one can provide computationally optimized images in frame 1 and frame 2 with one of the frames being shifted. The combination of these two frames of the computationally optimized image can then provide enhanced resolution for viewing. Advantageously, the switching of the polarization dependent optical component should be synchronized with the computed display sub-frame images, such that the polarization dependent optical component is switched on when frame 1 is displayed and the polarization dependent optical component is switched off when frame 2 is displayed. -
FIG. 5 is a preliminary experimental result of device exploiting resolution enhancement technique disclosed in this patent.FIG. 5(a) shows the display image without resolution enhancement, andFIG. 5(b) shows the display image with resolution enhancement. The detailed texture is visible inFIG. 5(b) after resolution enhancement. - All references, including publications, patent applications, and patents, cited herein are hereby incorporated by reference to the same extent as if each reference were individually and specifically indicated to be incorporated by reference and were set forth in its entirety herein.
- The use of the terms “a” and “an” and “the” and similar referents in the context of describing the invention (especially in the context of the following claims) are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. The terms “comprising,” “having,” “including,” and “containing” are to be construed as open-ended terms (i.e., meaning “including, but not limited to,”) unless otherwise noted. The term “connected” is to be construed as partly or wholly contained within, attached to, or joined together, even if there is something intervening.
- The recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein.
- All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., “such as”) provided herein, is intended merely to better illuminate embodiments of the invention and does not impose a limitation on the scope of the invention unless otherwise claimed.
Claims (6)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2017/038749 WO2018236379A1 (en) | 2017-06-22 | 2017-06-22 | Optical display system with enhanced resolution, methods, and applications |
Publications (1)
Publication Number | Publication Date |
---|---|
US20200159036A1 true US20200159036A1 (en) | 2020-05-21 |
Family
ID=64737187
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/624,483 Active 2038-02-08 US11624913B2 (en) | 2017-06-22 | 2017-06-22 | Optical display system with enhanced resolution, methods, and applications |
US16/621,283 Abandoned US20200159036A1 (en) | 2017-06-22 | 2017-06-22 | Optical display system with enhanced resolution, methods, and applications |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/624,483 Active 2038-02-08 US11624913B2 (en) | 2017-06-22 | 2017-06-22 | Optical display system with enhanced resolution, methods, and applications |
Country Status (2)
Country | Link |
---|---|
US (2) | US11624913B2 (en) |
WO (1) | WO2018236379A1 (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3380913B2 (en) * | 1992-06-11 | 2003-02-24 | ソニー株式会社 | Solid-state imaging device |
JP3428077B2 (en) * | 1993-06-18 | 2003-07-22 | ソニー株式会社 | Driving method of optical device |
US6184969B1 (en) * | 1994-10-25 | 2001-02-06 | James L. Fergason | Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement |
JP2003344871A (en) * | 2002-05-29 | 2003-12-03 | Sharp Corp | Image shift element and image display device |
TW580592B (en) * | 2001-11-28 | 2004-03-21 | Sharp Kk | Image shifting device, image display, liquid crystal display, and projection image display |
US9946070B2 (en) * | 2016-03-08 | 2018-04-17 | Sharp Kabushiki Kaisha | Automotive head up display |
-
2017
- 2017-06-22 WO PCT/US2017/038749 patent/WO2018236379A1/en active Application Filing
- 2017-06-22 US US16/624,483 patent/US11624913B2/en active Active
- 2017-06-22 US US16/621,283 patent/US20200159036A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20200110267A1 (en) | 2020-04-09 |
WO2018236379A1 (en) | 2018-12-27 |
US11624913B2 (en) | 2023-04-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10115327B1 (en) | Optical display system with enhanced resolution, methods, and applications | |
US11442306B2 (en) | Optical display system, method, and applications | |
US20200371356A1 (en) | Method and System for Occlusion Capable Compact Displays | |
US9772500B2 (en) | Double-layered liquid crystal lens and 3D display apparatus | |
JP2007183646A (en) | High resolution field sequential autostereoscopic display device | |
WO2020037941A1 (en) | Display apparatus and controlling method thereof | |
RU2625815C2 (en) | Display device | |
Xia et al. | Towards a switchable AR/VR near-eye display with accommodation-vergence and eyeglass prescription support | |
US20150172644A1 (en) | Display device and display method thereof | |
WO2018166194A1 (en) | Light field display device | |
CN114080559A (en) | Image display system, method for operating image display system and image projection apparatus | |
JP3658311B2 (en) | Three-dimensional display method and apparatus | |
CN202149995U (en) | Naked-eye 3D screen device | |
US11624913B2 (en) | Optical display system with enhanced resolution, methods, and applications | |
CN110618529A (en) | Light field display system for augmented reality and augmented reality device | |
JP3756481B2 (en) | 3D display device | |
US20240126082A1 (en) | Optical display system and electronics apparatus | |
CN105739110A (en) | Local naked eye 3D display | |
Yamada et al. | VARiable HMD: optical see-through HMD for AR and VR | |
CN102478730B (en) | Polarized three-dimensional (3D) display device and system | |
KR20190142668A (en) | Polarization modulated multi-focal head mounted display | |
US20220299770A1 (en) | Display device and electronic apparatus | |
JP2000134643A (en) | Three-dimensional display method and device | |
JP2002010298A (en) | Three-dimensional display device | |
TW201121302A (en) | Three-dimensional display device and three-dimensional display method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STPP | Information on status: patent application and granting procedure in general |
Free format text: APPLICATION DISPATCHED FROM PREEXAM, NOT YET DOCKETED |
|
AS | Assignment |
Owner name: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC., FLORIDA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LEE, YUN-HAN;PENG, FENGLIN;REEL/FRAME:053640/0615 Effective date: 20200827 Owner name: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC., FLORIDA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WU, SHIN-TSAN;REEL/FRAME:053640/0790 Effective date: 20200826 |
|
AS | Assignment |
Owner name: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC., FLORIDA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GOU, FANGWANG;REEL/FRAME:053988/0177 Effective date: 20200106 |
|
AS | Assignment |
Owner name: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC., FLORIDA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ZHAN, TAO;TAN, GUANJUN;SIGNING DATES FROM 20200824 TO 20201014;REEL/FRAME:054269/0499 |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |