# US 2019/0378445 A1 · Directional light emitters and electronic displays featuring the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0378445 A1 - Document ID: US20190378445A1 - Status: Published application - Kind: A1 - Application number: 16/544,432 - Filed: 2019-08-19 - Published: 2019-12-12 - Earliest claimed: 2017-12-21 - Assignees: X Development LLC - Applicants: X Development LLC - Inventors: Martin Friedrich Schubert; Michael Jason Grundmann; Raj B. Apte; Benoit Schillings - Web page: https://patentgrep.com/patent/US20190378445A1 ## CPC - G02B 30/33: involving directional light or back-light sources - G02B 26/06: for controlling the phase of light (G02B26/08 takes precedence {, measuring optical phase difference G01J9/00}) - G02B 26/08: for controlling the direction of light (in light guides G02B6/35) - G09G 3/001: {using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background (slide projectors per se G03B23/00 = 42 HP)} - G09G 3/32: semiconductive, e.g. using light-emitting diodes [LED] - H04N 13/32: using arrays of controllable light sources; using moving apertures or moving light sources - H04N 13/322: using varifocal lenses or mirrors - H04N 13/324: Colour aspects - H04N 13/376: for tracking left-right translational head movements, i.e. lateral movements - H10H 29/14: comprising multiple light-emitting semiconductor components - G09G 2300/0443: with several sub-pixels for the same colour in a pixel, not specifically used to display gradations (G09G3/364 takes precedence) - G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components - G09G 2320/028: by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction - G09G 2320/068: for control of viewing angle adjustment - G09G 2354/00: Aspects of interface with display user - G09G 2358/00: Arrangements for display data security - H04N 13/351: for displaying simultaneously - H04N 13/383: for tracking with gaze detection, i.e. detecting the lines of sight of the viewer's eyes - H10W 90/00: Package configurations - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 ## Abstract Methods, systems, and apparatus, including computer programs encoded on computer storage media, for changing a distributed mode loudspeaker's fundamental frequency. One of the systems may include a light emitting diode display that includes an array of pixels, each pixel including, for each color of multiple colors, a directional light emitter and a wide-angle light emitter, a first combination of all the directional light emitters configured to generate a first display image viewable within a first viewing angle, and a second combination of all the wide-angle light emitters configured to generate a second display image concurrently with the generation of the first display image that is viewable within a second viewing angle. The first display image is a different image than the second display image and the first viewing angle is a narrower viewing angle than, and included within, the second viewing angle. ## Claims ### Claim 1 (canceled) ### Claim 2 A light emitting diode display comprising: an array of pixels, each pixel comprising at least one directional light emitter and at least one wide-angle light emitter, a first combination of all the directional light emitters configured to generate a first display image viewable within a first viewing angle, and a second combination of all the wide-angle light emitters configured to generate, concurrently with the generation of the first display image, a second display image that a) is a different image than the first display image, b) is viewable within a second viewing angle that is wider than and encompasses the first viewing angle, and c) creates, within the first viewing angle, an overlaid image from the combination of the first display image and the second display image; an electronic controller to generate a signal that causes the light emitting diode display to change a viewing angle for the directional light emitters; and an eye-tracking component to determine eye movement data for a viewer, generate viewing angle adjustment data, and provide the viewing angle adjustment data to the electronic controller to change the viewing angle of the directional light emitters. ### Claim 3 (depends on 2) The light emitting diode display of claim 2, wherein the eye-tracking component comprising: a camera configured to capture one or more images to record eye movement of the viewer; a processor configured to analyze the captured image or video and generate viewing angle adjustment data based on the analysis result; and a communication unit communicated to the electronic controller and configured to transmit the viewing angle adjustment data to the electronic controller. ### Claim 4 (depends on 2) The light emitting diode display of claim 2, wherein the viewing angle adjustment data comprises: a change of the viewing angle of one or more of the directional light emitters; adjustments for each of the directional light emitters; adjustments that apply to groups of two or more directional light emitters; and a single adjustment that applies to all of the directional light emitters. ### Claim 5 (depends on 2) The light emitting diode display of claim 2, wherein the array of pixels comprises groups of viewing angle specific sub-pixels, each of the viewing angle specific sub-pixels comprises a light emitter specific to the corresponding viewing angle. ### Claim 6 (depends on 2) The light emitting diode display of claim 2, wherein the viewing angle is an angle at which the display projects light from the directional light emitters, wherein the eye-tracking component determines a predicted angle at which the viewer is looking at the light emitting diode display, and wherein the predicted angle is used to determine the viewing angle adjustment data. ### Claim 7 (depends on 2) The light emitting diode display of claim 2, further comprising a communication module to receive viewing angle adjustment data and provide the viewing angle adjustment data to the electronic controller. ### Claim 8 (depends on 2) The light emitting diode display of claim 2, wherein the generating of the viewing angle adjustment data comprises: capturing, by a camera, one or more images; and determining, by the eye-tracking component, the viewing angle adjustment data using the one or more images. ### Claim 9 (depends on 2) The light emitting diode display of claim 2, wherein the eye-tracking component is configured to: adjust narrow viewing angle for a particular viewer by following movement of the particular viewer; and reduce a likelihood that other viewers can view the narrow viewing angle content. ### Claim 10 (depends on 2) The light emitting diode display of claim 2, wherein the electronic controller comprises an array of controllable light directing elements. ### Claim 11 (depends on 10) The light emitting diode display of claim 10, wherein the electronic controller comprises one light directing element for each of the directional light emitters. ### Claim 12 (depends on 10) The light emitting diode display of claim 10, wherein the electronic controller comprises one light directing element for each group of the directional light emitters. ### Claim 13 A method comprising: generating, by a light emitting diode display using a plurality of wide-angle emitters, a first display image viewable in a first viewing angle; and generating, by the display using a plurality of directional emitters concurrently with generation of the first display image, a second display image that a) is a different image than the first display image, b) is viewable within a second viewing angle that is wider than and encompasses the first viewing angle, and c) creates, within the first viewing angle, an overlaid image from the combination of the first display image and the second display image; tracking eye movement of a viewer using an eye-tracking component; determining viewing angle adjustment data based on the eye movement of the viewer; and generating, by an electronic controller, angle adjustment commands using the viewing angle adjustment data, wherein changing, by the electronic controller, the second viewing angle of the second display image comprises adjusting, by the electronic controller, one or more light directing elements using the angle adjustment commands. ### Claim 14 (depends on 13) The method of claim 13, wherein the tracking eye movement of a viewer comprising: capturing, by a camera, one or more images to record eye movement of the viewer; analyzing, by a processor, the captured images; generating, by the processor, viewing angle adjustment data based on the analysis result; and transmitting, by a communication unit, the viewing angle adjustment data to the electronic controller. ### Claim 15 (depends on 13) The method of claim 13, wherein generating, by the display using the plurality of directional emitters concurrently with generation of the first display image, the second display image comprises generating, by the display using the plurality of directional emitters after generation of the first display image, the second display image for presentation concurrently with presentation of the first display image. ### Claim 16 (depends on 13) The method of claim 13, further comprising: determining, by the eye-tracking component, a predicted angle at which a viewer is looking at the light emitting diode display; and determining the viewing angle adjustment data by using the predicted angle. ### Claim 17 (depends on 13) The method of claim 13, further comprising: receiving, by a communication module, the viewing angle adjustment data; and providing the viewing angle adjustment data to the electronic controller. ### Claim 18 (depends on 13) The method of claim 13, wherein the determining viewing angle adjustment data comprises: determining, by the eye-tracking component, the viewing angle adjustment data using the one or more images. ### Claim 19 (depends on 13) The method of claim 13, further comprising: adjusting narrow viewing angle for a particular viewer by following movement of the particular viewer; and reducing a likelihood that other viewers can view the narrow viewing angle content. ### Claim 20 (depends on 13) The method of claim 13, further comprising: changing, by the display using an electronic controller, the second viewing angle of the second display image. ### Claim 21 (depends on 20) The method of claim 20, wherein changing the second viewing angle of the second display image comprising adjusting, by the electronic controller, one or more light directing elements to change the second viewing angle of the second display image.