Abstract: An optical imaging lens assembly includes at least one optical lens element. The optical lens element includes an anti-reflective coating, and the anti-reflective coating is arranged on at least one surface of the optical lens element. The anti-reflective coating includes a high-low refractive coating and a gradient refractive coating, and the high-low refractive coating is arranged between the optical lens element and the gradient refractive coating. The high-low refractive coating includes at least one high refractive coating layer and at least one low refractive coating layer, which are stacked in alternations. The low refractive coating layer is in contact with the optical lens element. The gradient refractive coating includes a plurality of holes, and the holes away from the optical lens element are relatively larger than the holes close to the optical lens element.
Abstract: A projection assembly for a head-up display (HUD), includes a composite pane with an electrically conductive coating, and a projector. The radiation of the projector is predominantly p-polarized. The electrically conductive coating has a first surface region within a HUD region and a second surface region outside the HUD region. The electrically conductive coating has at least one sub-region within the first surface region. The electrically conductive coating in the first surface section within the HUD region can be obtained from the electrically conductive coating in the second surface section using a subtractive method.
Abstract: An electronic device, including a substrate, multiple light emitting elements, an optical switching unit, and multiple micro lenses, is provided. The light emitting elements are disposed on the substrate. The optical switching unit is disposed on the light emitting elements. The micro lenses are disposed on the light emitting elements and overlap with the optical switching unit. At least one of the light emitting elements is disposed corresponding to one of the micro lenses.
Abstract: A system includes an optical transmission layer configured to allow a first luminance of illuminated images output from a display to pass through the optical transmission layer at a given time and to allow a second luminance of the illuminated images output from the display to pass through the optical transmission layer at another given time. The second luminance is one of dimmer or brighter than the first luminance.
Abstract: The present disclosure provides a display substrate and a display device. The display substrate includes a first substrate, and scanning lines and data lines arranged on the first substrate. The display substrate includes a plurality of pixel structures, each pixel structure includes a plurality of sub-pixel structures, each sub-pixel structure includes a common electrode and a pixel electrode, and an orthogonal projection of the common electrode onto the first substrate overlaps with an orthogonal projection of the pixel electrode onto the first substrate. The sub-pixel structures include a target sub-pixel structure, the common electrode of the target sub-pixel structure includes a first portion, a second portion, a third portion, and a fourth portion, and the first portion and the second portion are arranged along a first direction and extend along a second direction.
Abstract: A display device includes a display panel including a front substrate and a back substrate, a plurality of brackets attached to a non-display area of a back surface of the back substrate using an adhesive, and a backlight unit positioned in the rear of the display panel. The backlight unit includes a frame including at least one protrusion, a light guide plate disposed between the frame and the display panel, the light guide plate including at least one groove or hole corresponding to the at least one protrusion of the frame, an optical layer disposed between the light guide plate and the display panel, and a light source disposed on the side of the light guide plate.
Type:
Grant
Filed:
August 15, 2024
Date of Patent:
June 17, 2025
Assignee:
LG ELECTRONICS INC.
Inventors:
Inkeun Ryu, Sangdon Park, Moungyoub Lee, Kyoungmok Kim, Yunjoo Kim, Jonghyun Byeon
Abstract: The present disclosure provides a dimming window and a method for manufacturing the same. The dimming window includes a cell defined by a first substrate and a second substrate, where at least one side edge of the first substrate exceeds an outside of the second substrate, and a part of the first substrate that exceeds the second substrate serves as a single substrate region; a first transparent conductive layer on one side of the first substrate facing the second substrate; a second transparent conductive layer on one side of the second substrate facing the first substrate; and a liquid crystal layer between the first substrate and the second substrate.
Abstract: An image forming apparatus includes a light emitting device that emits light, a movable mirror that reflects the light emitted from the light emitting device, a first actuator that causes the movable mirror to swing about a first axis, a first reference signal output portion that outputs a first reference signal by estimating a point in time when a deflection angle of the movable mirror about the first axis becomes equal to a first reference angle, a light emission controller that causes the light emitting device to emit the light based on the first reference signal output from the first reference signal output portion, an imaging apparatus that images the light reflected by the movable mirror, and a correction portion that corrects a timing of the first reference signal output by the first reference signal output portion based on imaging information acquired by the imaging apparatus.
Abstract: A light control film comprises a light input surface and a light output surface; alternating transmissive regions and absorptive regions disposed between the light input surface and the light output surface; and TIR cladding layers. The TIR cladding layer having a refractive index, nTIR. The transmissive regions alternate between high refractive index transmissive regions having a refractive index, n2, and low refractive index transmissive regions having a refractive index, n1. The absorptive regions comprise a core having a refractive index, ncore, adjacent an AR cladding layer; wherein n1<n2 and nTIR<n2. The TIR cladding layers are adjacent the high refractive index transmissive regions. The cores have an aspect ratio of at least 20. The high refractive index transmissive regions have a wall angle of 6 degrees or less.
Type:
Grant
Filed:
December 18, 2020
Date of Patent:
May 27, 2025
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
Inventors:
Tao Liu, Nicholas A. Johnson, Raymond J. Kenney, Caleb T. Nelson, Daniel J. Schmidt
Abstract: According to one embodiment, a liquid crystal optical element includes a transparent substrate having a first main surface, an alignment control layer having a plurality of convex bodies, and a liquid crystal layer having a cholesteric liquid crystal. The alignment control layer has a first alignment area in which the convex bodies are arranged at a first pitch, and a second alignment area in which the convex bodies are arranged at a second pitch. The second pitch is less than the first pitch. The liquid crystal layer has a first liquid crystal area which overlaps the first alignment area, and a second liquid crystal area which overlaps the second alignment area.
Abstract: A display device includes a display panel including a front substrate and a back substrate, a plurality of brackets attached to a non-display area of a back surface of the back substrate using an adhesive, and a backlight unit positioned in the rear of the display panel. The backlight unit includes a frame including at least one protrusion, a light guide plate disposed between the frame and the display panel, the light guide plate including at least one groove or hole corresponding to the at least one protrusion of the frame, an optical layer disposed between the light guide plate and the display panel, and a light source disposed on the side of the light guide plate.
Type:
Grant
Filed:
June 28, 2024
Date of Patent:
May 27, 2025
Assignee:
LG ELECTRONICS INC.
Inventors:
Inkeun Ryu, Sangdon Park, Moungyoub Lee, Kyoungmok Kim, Yunjoo Kim, Jonghyun Byeon
Abstract: The present application discloses a liquid crystal alignment method, a liquid crystal display panel, and a mobile terminal. In a liquid crystal alignment process, a first common electrode receives an alignment voltage, and a pretilt angle of a liquid crystal molecule arranged corresponding to a slit is smaller than a pretilt angle of a liquid crystal molecule arranged corresponding to a branch electrode. In an actual driving process, because an overall pretilt angle of liquid crystal molecules is increased and pretilt angles in a same domain of a subpixel are differentiated, a response time and view angle features of medium and low grayscale of the liquid crystal display panel can be improved.
Type:
Grant
Filed:
August 26, 2021
Date of Patent:
May 13, 2025
Assignee:
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
Inventors:
Jinming Liu, Yoonsung Um, Juncheng Xiao, Ji Li, Yun Yu, Xiaojin He, Qi Zhang, Chunxiao Hu
Abstract: A display device with less light leakage and excellent contrast is provided. A display device having a high aperture ratio and including a large-capacitance capacitor is provided. A display device in which wiring delay due to parasitic capacitance is reduced is provided. A display device includes a transistor over a substrate, a pixel electrode connected to the transistor, a signal line electrically connected to the transistor, a scan line electrically connected to the transistor and intersecting with the signal line, and a common electrode overlapping with the pixel electrode and the signal line with an insulating film provided therebetween. The common electrode includes stripe regions extending in a direction intersecting with the signal line.
Type:
Grant
Filed:
November 4, 2024
Date of Patent:
May 13, 2025
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
Abstract: Sunglasses wearable by an intended user in presence of the sun, the sunglasses comprising: a lens support wearable by the intended user and defining a sight direction relative thereto; a pair of sunglasses lenses mounted to the lens support, the sunglasses lenses having an adjustable transmittance and being selectively configurable between least and most transmitting states, wherein the sunglasses lenses transmit more visible light in the most transmitting state than in the least transmitting state; and a controller operatively coupled to the sunglasses lenses for selectively changing the transmittance, the controller being operative for changing the transmittance as a function of a sun-to-sight angle between the sun and the sight direction.
Abstract: Described herein are examples of smart helmet modules that can be affixed to conventional welding helmets. In some examples, a smart helmet module may include one or more sensors configured to detect if/when welding is occurring, and/or whether a welding helmet is being worn in an up or down position, or not at all. In some examples, a smart helmet module may include one or more helmet devices configured to automatically activate or deactivate based on whether welding is taking place and/or the welding helmet is being worn up, down, or not at all.
Type:
Grant
Filed:
June 7, 2021
Date of Patent:
April 22, 2025
Assignee:
ILLINOIS TOOL WORKS INC.
Inventors:
William Joshua Becker, Mitchell James Muske, James Francis Rappl
Abstract: A display panel and a display device are disclosed. The display panel includes a first substrate, a second substrate, and a liquid crystal layer disposed therebetween. The first substrate includes a first base and a planarization layer disposed on a side of the first substrate adjacent to the liquid crystal layer. A side of the planarization layer adjacent to the liquid crystal layer includes a textured structure, which includes at least one groove path. The first substrate further includes a bottom edge. An extending direction of the at least one groove path forms an included angle with the bottom edge, the included angle being greater than or equal to 45 degrees and less than or equal to 135 degrees. A liquid crystal material in the liquid crystal layer diffuses along the extending direction of the groove path through the groove path based on capillary phenomenon.
Abstract: A focusing control device includes: a sensor that has a plurality of pairs of signal detection units each including a first signal detection unit that receives one of a pair of beams passed through different parts of an imaging optical system including a focus lens and detects a signal depending on an intensity of received light and a second signal detection unit that receives other one of the pair of beams and detects a signal depending on an intensity of received light, in which a plurality of lines each including a portion of the plurality of pairs that are arranged in one direction are arranged in a direction orthogonal to the one direction; a first correlation operation unit as defined herein; a second correlation operation unit as defined herein; a selection unit as defined herein; and a lens driving section as defined herein.
Abstract: Disclosed is a display device. The display device of the present disclosure includes: a display panel; a rear frame which is positioned in a rearward direction of the display panel; an inner frame which is positioned between the display panel and the rear frame, and coupled to the rear frame; and an outer frame which is coupled to the inner frame, and supports a rear surface of the display panel.
Type:
Grant
Filed:
January 11, 2024
Date of Patent:
March 11, 2025
Assignee:
LG ELECTRONICS INC.
Inventors:
Minhyun Kang, Junhee Kong, Byungchun Yoo, Hyeongryeol Kim, Hyungu Kim, Subin Kim
Abstract: A pupil separation system includes an input surface and a central portion including one or more dichroic mirrors. The pupil separation system also includes a reflective surface disposed laterally with respect to the central portion and an output surface including a central surface operable to transmit light in a first wavelength range and a peripheral surface operable to transmit light in a second wavelength range different from the first wavelength range. The light in the second wavelength range is reflected by the one or more dichroic mirrors before being reflected by the reflective surface.
Type:
Grant
Filed:
February 20, 2024
Date of Patent:
March 11, 2025
Assignee:
Magic Leap, Inc.
Inventors:
Ravi Kumar Komanduri, Chulwoo Oh, Kevin Messer, Ioannis Papadopoulos