Multiplexed display

Array of display units and all optical systems to create a light field display. The system can be tiled/stacked to create a larger display. FIG. 19 illustrates a block diagram of a light field projector device. FIG. 20A illustrates a projector and projected image with a light path. FIG. 20B illustrates the assignment of pixels in a projector frame for the active image, overlap area, and correction buffer. FIG. 21 is an isometric view of an exploded diagram of a light field display. FIG. 22 is an isometric view of an exploded diagram of an exemplary embodiment of a light field display. FIG. 23 illustrates multiplexing methods as per the present disclosure for a top view of a light field display. FIG. 24 illustrates multiplexing methods for top view of an alternative embodiment of a light field display. FIG. 25 illustrates a top view of an embodiment of multiplexed flat-panel light field display. FIG. 26 illustrates a top view of an alternative embodiment of multiplexed flat-panel light field display. DETAILED DESCRIPTION OF THE INVENTIONDescribed herein is a multiplexed multiple-view, autostereoscopic, and high-angular resolution, light field display. The light field display is viewable with both horizontal and vertical parallax. Light field display multiplexing is a method of increasing the density of views (pixels) by shifting the light path or light field in or from the projector. Multiplexing in general is a method of sending more than one signal over a link at a time. Specifically, for a light field display, multiplexing is sending multiple images in the time frame that a single frame would be sent in a non-multiplexed display, corresponding to some change in the optical system of the display for each multiplexed frame. A multiplexed image comprises two or more light field images, with each light field image projected

Of the direct projection light field display is a light field, which is a 3D representation of a continuously distributed light field based upon a finite number of views with angular resolution exceeding that of the human eye. A multiplexed light field display is achieved by multiplexing or overlaying two or more images, either temporally or spatially. A spatially multiplexed display may be described as one which uses lenses, motors, or other equivalent optical or mechanical components in combination with the light source to display separate views at different viewing angles. A spatially multiplexed light field display can produce unique images for multiple viewer or observer locations. By using the same hardware to create two or more images that are projected at different positions or angles and changing the image position at a rate faster than can be discerned by a viewer, the number of pixels in the light field display can be effectively multiplied by the number of projector image positions achievable by the multiplexing system. The minimum frame rate for a display is between 24-30 Hz, based on the minimum rate that a human eye cannot discern, which is less than about 30 Hz. Therefore, for a multiplexed system, the frame rate must increase by the same factor that the number of multiplexed frames per frames increases. In one example, if a normal display refreshes at 30 Hz, an multiplexed image with four output light field images each at a different location requires an overall frame refresh rate of 120 Hz so that each of the four output light fields has a refresh rate of at least 30 Hz. Rapidly changing the projection image position of each of the projectors in a light field projector device using a multiplexing component can thus provide a significant increase in pixel

10 Pages Posted: 9 Dec 2022 Abstract Three-dimensional (3D) display is the future technology of display. The insufficient refreshable information provided by the screen is one of the major bottlenecks that hinders the development of light field 3D display. In this paper, a time-multiplexed vector light field display is proposed to increase the amount of information by exploiting the time redundancy. A view modulator with fully coverage of metagrating matrix is adopted to generate two groups of time-sequentially lit-up intertwined views. With a small angular deflection requirement, the time-multiplexed strategy based on intertwined views are beneficial because the complexity of directional backlights is reduced. Moreover, the intertwined views involve minimum stray light and crosstalk, compared with successively arranged views. Furthermore, a time-multiplexed vector light field 3D display is demonstrated with 18 views. The horizontal field of view reaches 51°. The potential applications include human-computer interaction, commercial exhibition, and medical hygiene. Keywords: time-multiplexed, metagrating matrix, intertwined views, vector light field display Suggested Citation: Suggested Citation Do you have a job opening that you would like to promote on SSRN? Paper statistics

Ball game score. However, what we see is not always what is really happening. In fact for most displays, the individual display segments are cycled through so that only one display is on at any given time. The cycle speed is so fast that the human eye perceives that all segments are on. brgprecision.com electronic-scoreboard.com nu-mediadisplays.com/signs/time-displays.php This slide provides examples of various electronics signs and explains that display segments are not all on simultaneously. digicam-tech.com 12 Project Lead The Way, Inc. Copyright 2009 12 13 Simple Message: All Segments OnMultiplexers & Demultiplexers Digital Electronics Lesson 2.4 – Specific Combo Circuits & Misc Topics Simple Message: All Segments On The circuit to the right uses four 7-segment displays to display the word CIAO. In this circuit all displays are continuously illuminated, each displaying one letter in the word. Though this method works, it is a VERY inefficient use of p ower. To illuminate the simpl e message CIAO in this way, 18 segments must be continu ously on. Can you think of another way to display this message that would use less power? This slide shows how a simple message can be displayed using seven-segments displays. The drawback to this method is that all displays are on simultaneously. To display CIAO, 18 segments must be on, all drawing current and using power. Ask students to consider ways that they could display the message WITHOUT running all displays simultaneously. 13 13 Project Lead The Way, Inc. Copyright 2009 13 14 Multiplexed Displays SegmentsMultiplexers & Demultiplexers Digital Electronics Lesson 2.4 – Specific Combo Circuits & Misc Topics Multiplexed Displays Segments Manual Selector Demultiplexer Multiplexed Displays In this circuit the display segments are multiplexed, meaning that only one display is on at a time. To display the entire word, the displays must be de-multiplexed using a 1-to-4 DEMUX. In this example the select lines that control the DEMUX are connected to two switches. You must toggle 00, 01, 10, 11 to see the entire message. This slide shows how to de-multiplex four multiplexed seven segment displays. The advantage of this method is that only one display is on at any time. To display CIAO, at most 6 segments will be on at any time (for letters A & O). (Not Practical) 14 Project Lead The Way, Inc. Copyright 2009 14 15 Let’s See How It Works Click Schematic to Play Video 15Multiplexers & Demultiplexers Digital Electronics Lesson 2.4 – Specific Combo Circuits & Misc Topics Let’s See How It Works Click the schematic to play the video of the de-multiplexing of the multiplexed displays. Click Schematic to Play Video 15 Project Lead The Way, Inc. Copyright 2009 15 16 Complete Design This is a ripple counter (remember the dice game).Multiplexers & Demultiplexers Digital Electronics Lesson 2.4 – Specific Combo Circuits & Misc Topics Complete Design This schematic illustrates the complete design. In this circuit a 2-bit ripple counter has replaced the manual switches. Note: This design does work, but if you try to simulate

May be, but is not limited to, LED, LCD, plasma or electroluminescent panel. The light emitting diodes (LEDs) may be organic light emitting diodes (OLEDs) or quantum dot light emitting diodes (QLEDs) or another suitable diode. The multiplexed light field output 112 projected from the display optical system 22 comprises two individual light field images, shown as a first set of solid-line rays and a second set of dashed-line rays, which together make up the multiplexed light field output 112. In this configuration, the display optical system 22 may be a single lens, a lens array, a pinhole array, a metasurface, a metalens, or any other suitable display optical component. Multiplexing can be achieved by shifting the display optical system 22 along a first axis 114, a second axis 116 or by shifting the display optical system 22 along a third axis 122, or in any combination of the three. Multiplexing may also be achieved by deformation of the display optical system 22 which can be accomplished in 2D. Other display-based multiplexing techniques include manipulating the refractive index of the material of the display optical component comprising the display optical system 22 or by adjustment of the aperture of a pinhole array display optical system 22. The aperture adjustment multiplexing method can be achieved in 1D or 2D using a liquid crystal array or equivalent. FIG. 26 illustrates an alternative embodiment of multiplexed flat-panel light field display. This embodiment includes a flat-panel display 120, a collimating optical system 18, with the output light rays 12 directed first to an additional multiplexing layer 118 positioned directly before the display optical system 22, then to the display optical system 22. The multiplexed light field output 112 projected from the display optical system 22 comprises two individual light field images, shown as a