Abstract: A telecentric optical element that has a first surface, a second surface, and a layer of optically anisotropic material between the first surface and the second surface. The telecentric optical element is configured to receive light on the first surface, the light having propagated from a location within a predetermined distance range from the first surface of the optical element. The telecentric optical element is also configured to redirect a first portion of the light, having a first polarization, off the first surface of the telecentric optical element in an off-axis direction, and to transmit a second portion of light, having polarization different from the first polarization, to the second surface. An eye-tracking assembly that includes the telecentric optical element and a display device that includes the telecentric optical element are also disclosed.

Abstract: A display panel has an array of pixels backlighted by a backlight including a lightguide and a plurality of out-coupling gratings. The locations of the out-coupling gratings are coordinated with positions of pixels in the array of pixels. The backlight may include a light-conducting transparent slab or an array of linear waveguides running parallel to the rows of the pixel array, with the gratings formed in the slab or in the waveguide. Wavelength composition and polarization of the light emitted by the waveguide may be matched to the transmission spectral bands and transmission polarization of the display panel.

Abstract: A display device with a transparent illuminator and an liquid crystal (LC) display panel is disclosed. The transparent illuminator includes a light source and a transparent lightguide, which may be based on a slab of transparent material with zigzag light propagation of the illuminating light in the slab and/or a transparent photonic integrated circuit with singlemode ridge waveguides for spreading the illuminating light in a plane parallel to the plane of LC display panel. The lightguide includes a plurality of grating out-couplers whose position is coordinated with positions of LC pixels for higher throughput. A reflective offset-to-angle optical element may be provided to form an image in angular domain through the LC panel and through the transparent illuminator, resulting in an overall compact and efficient display configuration.

Abstract: Electronic system level (ESL) design and verification of the present disclosure is utilized to provide an electronic simulation and modeling of function safety and fault management of an electronic device. A method for simulating a safety circuit includes providing an electronic architectural design to perform one or more functional behaviors of the electronic device in accordance with an electronic design specification. The method further includes modeling the safety circuit of the electronic architectural design and one or more other electronic circuits of the electronic architectural design that communicate with the safety circuit. The method further includes simulating, using the modeling, operation of the safety circuit while the electronic architectural design is performing the one or more functional behaviors. The method also includes determining whether the simulated operation of the safety circuit satisfies the electronic design specification.

Abstract: An apparatus includes an image sensor having a light sensing region, the light sensing region being partitioned into a plurality of sub-regions, a first sub-region of the plurality of sub-regions has a first size, a second sub-region of the plurality of sub-regions has a second size different from the first size, and the second sub-region partially overlaps with the first sub-region. The apparatus further includes a processor coupled with the image sensor, wherein the processor includes a plurality of pixel processing units, and each processing unit of the plurality of processing units is configured to generate a processed image based on an image captured by a corresponding sub-region of the plurality of sub-regions. The apparatus further includes a plurality of lenses configured to focus incident light onto the image sensor.

Abstract: An illumination system is provided. The illumination system includes a light source assembly configured to output a first polarized light having a first handedness. The illumination system also includes a light guide plate configured to guide the first polarized light received from the light source assembly and output a second polarized light having a second handedness opposite to the first handedness. The light guide plate includes two wedges coupled to one other at a slanted surface between the two wedges and a reflective polarizer disposed at the slanted surface. The illumination system also includes a reflective sheet arranged at a first side surface of the light guide plate and configured to reflect the first polarized light as the second polarized light. The reflective polarizer includes a birefringent material having a chirality, and is configured to selectively transmit the first polarized light and reflect the second polarized light.

Abstract: An optical element includes a first birefringent medium layer with orientations of directors of first optically anisotropic molecules spatially varying with a first in-plane pitch and a first vertical pitch. The optical element also includes a second birefringent medium layer with orientations of directors of second optically anisotropic molecules spatially varying with a second in-plane pitch and a second vertical pitch. The second birefringent medium layer is optically coupled with the first birefringent medium layer and configured to reduce a diffraction of a light by the first birefringent medium layer. The first in-plane pitch is substantially the same as the second in-plane pitch, and the second vertical pitch is smaller than the first vertical pitch.

Abstract: A method executed at least partially by a processor includes creating a plurality of groups of paths from a plurality of paths in an integrated circuit (IC) layout diagram. Each group among the plurality of groups has a dominant feature among a plurality of features of the plurality of paths. The dominant features of the plurality of groups are different from each other. The method further includes testing at least one path in a group among the plurality of groups. The method also includes, in response to the testing indicating that the at least one path fails, modifying at least one of the IC layout diagram, at least a portion of at least one library having cells included in the IC layout diagram, or a manufacturing process for manufacturing an IC corresponding to the IC layout diagram.

Abstract: An optical element includes a first boundary layer and a second boundary layer. A solution is disposed between the first boundary layer and the second boundary layer. The solution includes liquid crystals co-mingled with oblong photochromic dye molecules.

Abstract: A memory circuit includes a stack of first dies including multiple sets of memory cells of a first type, a second die including multiple sets of memory cells of a second type, a third die, and an interposer carrying the first, second, and third dies. The second die includes a first set of input/output (I/O) terminals on a top surface of the second die and a second set of I/O terminals on a bottom surface of the second die. The stack of first dies is coupled to the second die through the first set of I/O terminals. The interposer is coupled to the second die through the second set of I/O terminals. The third die is positioned aside the second die and in communication with the second die through the interposer.

Abstract: A device includes one or more light guides. The device also includes a first in-coupling element configured to couple a first light having a first input field of view (“FOV”) into a first light guide, and a second in-coupling element configured to couple a second light having a second input FOV into a second light guide. The device also includes a first out-coupling element configured to couple the first light out of the first light guide as a first output light having a first output FOV, and a second out-coupling element configured to couple the second light out of the second light guide as a second output light having a second output FOV substantially non-overlapping with the first output FOV. A combination of the first output FOV and the second output FOV is larger than at least one of the first output FOV or the second output FOV.

Abstract: A method includes obtaining a mixture including a first composition and a second composition. The method also includes forming a layer based on the mixture. Ratios between an amount of the first composition and an amount of the second composition at at least two locations of the layer are different.

Abstract: A method is provided. The method includes directing a first beam to a polarization sensitive recording medium. The method also includes directing a second beam to the polarization sensitive recording medium to interfere with the first beam to generate a polarization interference pattern, to which the polarization sensitive recording medium is exposed. One of the first beam and the second beam has a planar wavefront and the other has a non-planar wavefront. A first propagation direction of the first beam and a second propagation of the second beam are non-parallel.

Abstract: A lens is provided. The lens includes an optically anisotropic film. The optically anisotropic film has an optic axis configured with an in-plane rotation in at least two opposite in-plane directions from a lens pattern center to opposite lens peripheries. The optic axis rotates in a same rotation direction from the lens pattern center to the opposite lens peripheries. An azimuthal angle changing rate of the optic axis is configured to increase from the lens pattern center to the opposite lens peripheries in at least a portion of the lens including the lens pattern center. The lens pattern center is shifted from a geometry center of the lens by a predetermined distance in a predetermined direction.

Abstract: An optical device is provided. The optical device includes a first optical element configured to output an elliptically polarized light having one or more predetermined polarization ellipse parameters. The optical device also includes a second optical element including a birefringent material with a chirality, and configured to receive the elliptically polarized light from the first optical element and reflect the elliptically polarized light as a circularly polarized light.

Abstract: A device includes one or more light guides. The device also includes a first in-coupling element configured to couple a first light having a first input field of view (“FOV”) into a first light guide, and a second in-coupling element configured to couple a second light having a second input FOV into a second light guide. The device also includes a first out-coupling element configured to couple the first light out of the first light guide as a first output light having a first output FOV, and a second out-coupling element configured to couple the second light out of the second light guide as a second output light having a second output FOV substantially non-overlapping with the first output FOV. A combination of the first output FOV and the second output FOV is larger than at least one of the first output FOV or the second output FOV.

Abstract: A package includes an Integrated Voltage Regulator (IVR) die, wherein the IVR die includes metal pillars at a top surface of the first IVR die. The package further includes a first encapsulating material encapsulating the first IVR die therein, wherein the first encapsulating material has a top surface coplanar with top surfaces of the metal pillars. A plurality of redistribution lines is over the first encapsulating material and the IVR die. The plurality of redistribution lines is electrically coupled to the metal pillars. A core chip overlaps and is bonded to the plurality of redistribution lines. A second encapsulating material encapsulates the core chip therein, wherein edges of the first encapsulating material and respective edges of the second encapsulating material are vertically aligned to each other. An interposer or a package substrate is underlying and bonded to the IVR die.

Abstract: A memory circuit includes a first memory circuit formed of a first die or a set of stacked dies. The memory circuit further includes a second memory circuit formed of a second die, the second memory circuit comprising one or more sets of memory cells of a second type and each set of the memory cells of the second type comprising multiple cache sections. The first die or the set of stacked dies are stacked over the second die, wherein the second die further includes a first plurality of I/O terminals and a second plurality of I/O terminals, the first plurality of I/O terminals being electrically coupled to the first memory circuit, and the second plurality of I/O terminals being electrically isolated from the first memory circuit.

Abstract: An optical device includes a first layer including a first birefringent material having a negative birefringence dispersion property. The optical device also includes a second layer including a second birefringent material having a positive birefringence dispersion property. The first layer and the second layer are structurally patterned to provide at least one predetermined optical function.

Abstract: A system is provided. The system includes a light source configured to emit an infrared light to illuminate an eye of a user. The system includes a grating disposed facing the eye and including a birefringent material film configured with a uniform birefringence lower than or equal to 0.1. The grating is configured to diffract the infrared light reflected from the eye, and transmit a visible light from a real world environment toward the eye, with a diffraction efficiency less than a predetermined threshold. The system includes an optical sensor configured to receive the diffracted infrared light and generate an image of the eye based on the diffracted infrared light.