# US 2019/0320165 A1 · Single-panel head-mounted display > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0320165 A1 - Document ID: US20190320165A1 - Status: Published application - Kind: A1 - Application number: 16/002,200 - Filed: 2018-06-07 - Published: 2019-10-17 - Earliest claimed: 2018-04-12 - Assignees: Fat Shark Technology SEZC - Applicants: Fat Shark Technology SEZC - Inventors: Gregory FRENCH; Allan EVANS - Web page: https://patentgrep.com/patent/US20190320165A1 ## CPC - H04N 13/344: with head-mounted left-right displays - G02B 27/0172: {characterised by optical features} - G02B 30/27: involving lenticular arrays - G06T 15/08: Volume rendering - H04N 13/128: Adjusting depth or disparity - G02B 2027/0134: {of stereoscopic type} - H04N 2013/0081: {Depth or disparity estimation from stereoscopic image signals} - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ## Abstract Disclosed herein are head-mounted displays comprising a display screen and an optics block. The optics block is configured to present, at a time instant, to a left eye of a user of the head-mounted display apparatus, a first shifted version all of an image generated by the display screen. The first shifted version of the image has a first perceived center location that differs from the center of the display screen. The optics block is also configured to present, at the time instant, to a right eye of the user of the head-mounted display apparatus, a second shifted version of the image generated by the display screen, the second shifted version of the image having a second perceived center location that differs from the center of the display screen and that differs from the first perceived center location. ## Claims ### Claim 1 A head-mounted display apparatus, comprising: a display screen; and an optics block configured to present, at a time instant, to a left eye of a user of the head-mounted display apparatus, a first shifted version of an entirety of an image generated by the display screen, the image generated by the display screen being the only image generated by the display screen at the time instant, the first shifted version of the image having a first perceived center location that differs from a center of the display screen, and to present, at the time instant, to a right eye of the user of the head-mounted display apparatus, a second shifted version of the entirety of the image generated by the display screen, the second shifted version of the image having a second perceived center location that differs from the center of the display screen and that differs from the first perceived center location. ### Claim 2 (depends on 1) The head-mounted display apparatus recited in claim 1, wherein a distance between the display screen and the optics block is less than approximately 25 cm. ### Claim 3 (depends on 1) The head-mounted display apparatus recited in claim 1, wherein the optics block comprises: a first optical component having a first curved surface and a first flat surface; and a second optical component having a second curved surface and a second flat surface. ### Claim 4 (depends on 3) The head-mounted display apparatus recited in claim 3, wherein the first and second curved surfaces or the first and second flat surfaces are positioned to face a user of the head-mounted display apparatus. ### Claim 5 (depends on 1) The head-mounted display apparatus recited in claim 1, wherein the optics block comprises: a lens having at least one surface with optical power; and a wedge. ### Claim 6 (depends on 5) The head-mounted display apparatus recited in claim 5, wherein the wedge and the lens are included in a monolithic unit. ### Claim 7 (depends on 5) The head-mounted display apparatus recited in claim 5, wherein the wedge and lens are separate components. ### Claim 8 (depends on 1) The head-mounted display apparatus recited in claim 1, further comprising an actuator configured to enable a user to move at least a portion of the optics block. ### Claim 9 (depends on 8) The head-mounted display apparatus recited in claim 8, wherein the actuator is configured to enable the user to move the at least a portion of the optics block in at least a direction parallel to or perpendicular to a center line. ### Claim 10 (depends on 8) The head-mounted display apparatus recited in claim 8, wherein the actuator is configured to enable the user to move a first portion of the optics block relative to a second portion of the optics block. ### Claim 11 (depends on 8) The head-mounted display apparatus recited in claim 8, wherein the actuator is configured to enable the user to rotate the at least a portion of the optics block. ### Claim 12 (depends on 8) The head-mounted display apparatus recited in claim 8, wherein the actuator comprises a mechanical component configured to enable the user to adjust a distance between at least a portion of the optics block and the display screen. ### Claim 13 (depends on 1) The head-mounted display apparatus recited in claim 1, wherein the optics block comprises a prism, a diffractive surface, a corrective lens, or a mirror. ### Claim 14 (depends on 1) The head-mounted display apparatus recited in claim 1, wherein the first perceived center location corresponds to a first vergence angle and the second perceived center location corresponds to a second vergence angle, each of the first and second vergence angles being less than a focal angle corresponding to the center of the display screen. ### Claim 15 (depends on 1) The head-mounted display apparatus recited in claim 1, wherein a distance between the optics block and the display screen is between approximately 50 and approximately 250 mm. ### Claim 16 (depends on 1) The head-mounted display apparatus recited in claim 1, further comprising: a parallax barrier disposed between the display screen and the optics block, wherein the parallax barrier comprises a slit, a liquid crystal display, or a lenticular display. ### Claim 17 A head-mounted display apparatus, comprising: a display screen; a first optical component comprising a first curved surface and a first flat surface opposite the first curved surface; and a second optical component comprising a second curved surface and a second flat surface opposite the second curved surface, wherein: the first flat surface is positioned to face a left eye of a user of the head-mounted display apparatus, the second flat surface is positioned to face a right eye of the user of the head-mounted display apparatus, and a distance between the first and second optical components is user-adjustable. ### Claim 18 (depends on 17) The head-mounted display apparatus recited in claim 17, wherein: the first optical component is configured to present, at a time instant, to the left eye of the user of the head-mounted display apparatus, a first shifted version of an entirety of an image generated by the display screen, the image generated by the display screen being the only image generated by the display screen at the time instant, the first shifted version of the image having a first perceived center location that differs from a center of the display screen, and the second optical component is configured to present, at the time instant, to the right eye of the user of the head-mounted display apparatus, a second shifted version of the entirety of the image generated by the display screen, the second shifted version of the image having a second perceived center location that differs from the center of the display screen and that differs from the first perceived center location. ### Claim 19 A head-mounted display apparatus, comprising: a display screen; a first optical component comprising a first curved surface and a first flat surface opposite the first curved surface; and a second optical component comprising a second curved surface and a second flat surface opposite the second curved surface, wherein: the first curved surface is positioned to face a left eye of a user of the head-mounted display apparatus, the second curved surface is positioned to face a right eye of the user of the head-mounted display apparatus, and a distance between the first and second optical components is user-adjustable. ### Claim 20 (depends on 19) The head-mounted display apparatus recited in claim 19, wherein: the first optical component is configured to present, at a time instant, to the left eye of the user of the head-mounted display apparatus, a first shifted version of an entirety of an image generated by the display screen, the image generated by the display screen being the only image generated by the display screen at the time instant, the first shifted version of the image having a first perceived center location that differs from a center of the display screen, and the second optical component is configured to present, at the time instant, to the right eye of the user of the head-mounted display apparatus, a second shifted version of the entirety of the image generated by the display screen, the second shifted version of the image having a second perceived center location that differs from the center of the display screen and that differs from the first perceived center location.