Abstract: An optical imaging system includes a first lens, a second lens, a third lens, and a fourth lens sequentially disposed from an object side toward an image side on an optical axis, and a reflecting member disposed closer to the object side, as compared to the first lens, and having a reflecting surface configured to change a path of light to be incident to the first to fourth lenses. The first to fourth lenses are disposed to be spaced apart from each other by a preset distance along the optical axis, and 1.3<TTL/BFL<3.5, where TTL is a distance from an object-side surface of the first lens to an imaging plane of an image sensor, and BFL is a distance from an image-side surface of the fourth lens to the imaging plane of the image sensor.

Abstract: An image pickup lens comprises a first lens having negative refractive power, a second lens having positive refractive power, a third lens having negative refractive power, a fourth lens having positive refractive power, and a fifth lens having negative refractive power, from an object side to an image side. The image pickup lens has an optical axis. A portion of a surface of the first lens facing the object side and close to the axis is convex, a portion of a surface of the first lens facing the image side and close to the axis is concave. A portion of a surface of the fourth lens facing the object side and close to the axis is convex, a portion of a surface of the fourth lens facing the image side and close to the axis is convex. The image pickup lens has large field of view and small volume.

Abstract: An image capturing optical assembly includes, in order from an object side to an image side, a first lens group, a second lens group and a third lens group, wherein the first lens group includes a first lens element and a second lens element, the second lens group includes a third lens element, a fourth lens element and a fifth lens element, and the third lens group includes a sixth lens element, a seventh lens element and an eighth lens element. At least one surface of at least one of the lens elements of each lens group is aspheric. At least one surface of at least one of the lens elements includes at least one inflection point.

Abstract: An optical imaging system includes: a first lens having a concave image-side surface; a second lens having refractive power; a third lens having a concave image-side surface; a fourth lens having a concave object-side surface or a convex image-side surface; a fifth lens having refractive power; a sixth lens having a concave image-side surface; and a seventh lens having negative refractive power. The first to seventh lenses are sequentially disposed from an object side and 1.62<(N2+N5+N6)/3, where N2 is a refractive index of the second lens, N5 is a refractive index of the fifth lens, and N6 is a refractive index of the sixth lens.

Abstract: An image system lens assembly includes five lens elements, the five lens elements being, in order from an object side to an image side: a first lens element; a second lens element having an object side-surface being convex in a paraxial region thereof; a third lens element having negative refractive power; a fourth lens element with positive refractive power having an image-side surface being convex in a paraxial region thereof; and a fifth lens element having negative refractive power.

Abstract: A zoom lens system according to an example embodiment includes, sequentially from an object side to an image plane side along an optical axis, a first lens group having a negative refractive power and including at least one doublet lens, the doublet lens including two lenses, a second lens group having a positive refractive power, and a third lens group having a positive refractive power, wherein the first lens group and the second lens group are configured to move along the optical axis to perform zooming and focusing, and the zoom lens system satisfies 3.0<Vdf/Vdr<6.0, where Vdf denotes an Abbe number of a lens arranged at the object side in a doublet lens, and Vdr denotes an Abbe number of a lens arranged at the image plane side in a doublet lens.

Abstract: A zoom lens includes in order from an object side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, a third lens unit having a negative refractive power, and a fourth lens unit having a positive refractive power. At the time of zooming, distances between lenses vary. A distance between the first lens unit and the second lens unit becomes smaller at a telephoto end than at a wide angle end, and a distance between the second lens unit and the third lens unit becomes longer at the telephoto end than at the wide angle end, and the following conditional expressions (1), (2), and (3) are satisfied: 0.4<|f1|/|f2|<1.2??(1) 0.3<L2/L1<0.95??(2) 0.6<Lt/Lw<1??(3).

Abstract: A zoom lens, comprises: in order from an object, a first lens group (G1) having positive refractive power; a second lens group (G2) having negative refractive power; a third lens group (G3) having positive refractive power; a fourth lens group (G4) having negative refractive power; and a fifth lens group (G5) having positive refractive power, wherein, upon zooming from a wide-angle end state to a telephoto end state, a distance between each of lens groups and a lens group adjacent thereto changes to satisfy the following conditional expression: 2.90<|MV5/MV2|<11.50 where, MV5 denotes, upon zooming from a wide-angle end state to a telephoto end state, a moving amount of the fifth lens group with an image surface as a reference; and MV2 denotes, upon zooming from the wide-angle end state to the telephoto end state, a moving amount of the second lens group with the image surface as the reference.

Abstract: Disclosed are a camera and an image display apparatus including the same. The camera according to an embodiment of the present invention comprises: a first optical structure configured to refract and reflect a first input beam to output a second beam with a width smaller than a width of the first input beam; and a second optical structure configured to refract and reflect the second beam from the first optical structure to output a third beam with a width greater than the width of the second beam, wherein the first optical structure comprises a first reflection surface configured to reflect the first input beam, and wherein a first angle between the first reflection surface and the second beam and a second angle between an orthogonal surface orthogonal to the first input beam and the first reflection surface are each greater than 0° and smaller than 45°. Accordingly, a thickness of the camera may be reduced.

Abstract: A head-up display system of the present disclosure includes a display device that displays an image and a projection optical system that projects on the display member the image displayed on the display device. The projection optical system includes mirror ML that reflects a light beam toward the display member and mirror ML?1 that reflects the light beam toward mirror ML. Then, the projection optical system satisfies following condition (1): 0.01<|MLD/MLW|×|ML?1Z/ML?1W|??(1) where MLD is depth of mirror ML MLW is lateral dimension of mirror ML ML?1Z is maximum sag amount of mirror ML?1 ML?1W is lateral dimension of mirror ML?1. Such a configuration provides a head-up display system small in size that makes image distortion small in an entire viewpoint area of an observer.

Abstract: A catadioptric projection objective has a multiplicity of lenses and at least one concave mirror, and also two deflection mirrors in order to separate a partial beam path running from the object field to the concave mirror from the partial beam path running from the concave mirror to the image field. The deflection mirrors are tilted relative to the optical axis of the projection objective about tilting axes running parallel to a first direction (x-direction). The first deflection mirror is arranged in optical proximity to a first field plane and the second deflection mirror is arranged in optical proximity to a second field plane, which is optically conjugate with respect to the first field plane. A displacement device for the synchronous displacement of the deflection mirrors is provided. The deflection mirrors have different local distributions of their reflection properties in first and second reflection regions, respectively.

Abstract: A scanning microscope includes a laser configured to emit laser light, an objective configured to focus the laser light on an object, a scanner configured to scan the object in a direction orthogonal to an optical axis of the objective, a varifocal lens configured to scan the object in an optical-axis direction of the objective by changing a lens shape of the varifocal lens, a first relay lens configured to project the scanner onto the varifocal lens, a second relay lens configured to project a pupil of the objective onto the varifocal lens, a photodetector configured to detect fluorescence generated from the object upon the laser light being focused on the object by the objective, and a dichroic mirror configured to separate the fluorescence and the laser light emitted from the laser from each other. The varifocal lens is located between the objective and the scanner.

Abstract: Certain aspects pertain to ptychographic imaging systems and methods with convex relaxation. In some aspects, a ptychographic imaging system with convex relaxation comprises one or more electromagnetic radiation sources, a digital radiation intensity detector, and a processor in communication with the digital radiation detector. The electromagnetic radiation provides coherent radiation to a specimen while the digital radiation intensity detector receives light transferred from the sample by diffractive optics and captures intensity distributions for a sequence of low resolution images having diversity. The processor generates a convex problem based on the sequence of low resolution images and optimizes the convex problem to reconstruct a high-resolution image of the specimen. In certain aspects, the convex problem is relaxed into a low-rank formulation.

Abstract: A method for operating a microscopy arrangement, and a microscopy arrangement, having a first microscope and at least one further microscope, wherein each of the microscopes have a respective optical axis. The respective optical axes do not coincide. The method provides a three-dimensional reference coordinate system being set; a carrier apparatus, that is embodied in the arrangement to receive and hold a specimen carrier is introduced into a specimen plane of the first microscope that is intersected by the optical axis and onto the optical axis of the first microscope; a reference point is set on the optical axis of the first microscope; the carrier apparatus is delivered to the further microscope, wherein the current coordinates of the reference point are continuously captured and compared to the coordinates of the optical axis of the at least one further microscope; and the reference point is brought onto the optical axis of the at least one further microscope.

Abstract: For the purposes of high-resolution scanning microscopy, a sample is excited by illumination radiation to emit fluorescent radiation in such a way that the illumination radiation is focused at a point in or on the sample, so as to form a diffraction-limited illumination spot. The point is imaged in a diffraction image on a detector in a diffraction-limited manner, wherein the detector has detector elements and a plurality of location channels which resolve a diffraction structure of the diffraction image. The sample is scanned with various scanning positions with an increment smaller than half the diameter of the illumination spot. An image of the sample with a resolution that is increased beyond a resolution limit of the image is generated from the data of the detector and from the scanning positions associated with these data.

Abstract: Provided herein is a method and system for imaging a biological sample. The method may include scanning a biological sample using one or more light sheets, where the biological sample is in a field of view of a microscope that includes an objective and a direction of observation of the objective defines a z-axis, where a point spread function of the microscope is elongated in the z-axial direction, and the biological sample is at a z-axial distance from the objective, thereby illuminating a plurality of z-axial slices of the biological sample, and recording a plurality of images corresponding to a plurality of z-axial slices of the sample, where the images are generated by light patterns emitted from the scanned biological sample, thereby generating an image stack that includes a plurality of images of the biological sample.

Abstract: A microscope system (1) includes a microscope and a camera (3) for generating and recording image-based information on an area of observation. A storage and evaluation unit (4) is connected to the microscope (2) and the camera (3) for detecting parameter settings of the microscope associated with the image-based information. A display (5) renders visible the digital image of the area of observation, and a control unit (6) is connected to the storage and evaluation unit (4) and to the display (5). The control unit (6) places digital markers for marking observed objects in a digital image of the area of observation and displays the digital markers on the display (5). The storage and evaluation unit (4) selects and stores information on each digital marker so that the marker can be associated at a later point in time with the position of the observed object.

Abstract: An endoscope (1) with an endoscope shaft (3) in which an illumination device (11) and a rotatably mounted image sensor (12) are arranged in a distal region (8) is provided, and includes a handle (2) in which a rotatably mounted heat sink (16) is arranged, wherein the image sensor (12) is thermally connected to the heat sink (16), for conjoint rotation therewith, via a heat transmission element (15).

Abstract: Disclosed herein is a sensor loupe where the user can look at a gemstone through a passive optical loupe and take a picture of the exact field of view that he sees.

Abstract: An optical system including at least one liquid crystal lens and an imaging lens module is provided. The optical system is configured to form an image of an object. The at least one liquid crystal lens and the imaging lens module is disposed on a path of light from the object. The at least one liquid crystal lens includes a first substrate, a second substrate, and a liquid crystal layer. The second substrate is opposite to the first substrate. The liquid crystal layer is disposed between the first substrate and the second substrate. An effective refractive index of each position on the liquid crystal layer is related to an voltage applied, and the at least one liquid crystal lens is configured to change an optical axis of the at least one liquid crystal lens by changing distribution of orientations of liquid crystal molecules of the liquid crystal layer.

Abstract: A light converter and method of manufacture is provided. A light conversion layer (301), comprising light conversion particles (301a) in a binding material (301b) is provided for generating emission light from excitation light incident on the light conversion layer (301). A planarization layer (304) is on a surface of the light conversion layer (301) and at least one optical coating (305) is part of or on a surface of the planarization layer (304) that is relatively smooth in comparison with the surface of the light conversion layer (301).

Abstract: A vehicle may have a head-up display that produces a display output allowing a viewer in the vehicle to observe two-dimensional or three-dimensional content. The head-up display may include a display unit that produces the display output and an optical combiner on a vehicle window that directs the display output towards the viewer. The optical combiner may be a holographic or diffractive optical element or may be an array of angled reflectors such as micromirrors embedded in an index-matching material. Optical combiners formed from holographic elements may be configured to reflect light at an angle of reflection that is different than the angle of incidence, thereby allowing light to reach a viewer's eyes even when the head-up display reflects light off of a side window on a vehicle door. A holographic optical element may include volume holographic media such as photopolymers or holographic polymer dispersed liquid crystal.

Abstract: A head-up display device reflects a display light on a projection member to display a virtual image. A light condensing unit causes condensation and collimates an illumination light from a light source unit. A liquid crystal element includes forms an image illuminated with the illumination light. The liquid crystal element emits the display light of the image in a light flux form in an emission direction corresponding to an incident direction of the illumination light. A positive optical element has a positive refractive power. A negative optical element has a negative refractive power. Both of the optical elements are located on the optical path and guide the display light from the liquid crystal element toward the projection member to enlarge a virtual image. The negative optical element on the optical path is located closer to the liquid crystal element than the positive optical element.

Abstract: A display device has a display portion and a polarizing plate, the polarizing plate being provided on a viewing side of the display portion and having a transmission axis in a vertical direction with respect to the display portion, wherein at least one tilt orientation phase difference film is provided on a viewing side of the polarizing plate, and the tilt orientation phase difference film has such an arrangement structure that does not cause a phase difference for light emitted upward in the vertical direction, and causes a phase difference for light emitted in a lateral direction perpendicular to the vertical direction.

Abstract: A lens assembly can be removably attached to an eye cone of a HMD. The eye cone displays images to an eye of a user of the HMD. The eye cone includes a peripheral wall that extends towards rear of the HMD. The lens assembly includes a corrective lens and a frame. The corrective lens corrects a vision error of the eye of the user. The frame includes an inner surface onto which the corrective lens is attached. The frame also includes a wall that receives a peripheral wall of the eye cone for removably securing the lens assembly to the HMD. The HMD can include another eye cone that displays images to the other eye of the user. Another lens assembly can be removably attached to the other eye cone.

Abstract: An optical waveguide that performs both in-coupling and out-coupling of projected light is provided. The out-coupling region of the waveguide comprises a single-sided or double-sided diffraction grating with at least one of the grating structures conformally coated with a high refractive index material. To reduce the unwanted reflection of light on the waveguide surfaces coated with the high refractive index material, additional antireflective coatings are applied to the diffraction grating areas with the high refractive index coating. The additional antireflective coatings may be very thin to avoid in-coupling, and therefore avoid interference in one or more light rays propagating in the optical waveguide. Alternatively, the antireflective coatings may be very thick to promote in-coupling such that the resulting interference becomes consistent across all light rays propagating in the optical waveguide.

Abstract: A graphics processing system for a head mounted display (or other non-standard projection display) comprises a low latency distortion unit which is separate from a graphics processing unit in the graphics processing system. The low latency distortion unit receives pixel data generated by the graphics processing system using a standard projection and performs a mapping operation to introduce distortion which is dependent upon the optical properties of the optical arrangement within the head mounted display. The distorted pixel data which is generated by the low latency distortion unit is then output to the display in the head mounted display.

Abstract: A waveguide image combiner is used to transmit a monochrome or full-color image in an augmented reality display. The combiner uses multiple pairs of overlapping incoupling and outcoupling VHOEs to expand the horizontal FOV and a Y expander to expand the vertical FOV. This suitably provides an expanded horizontal and vertical FOV that offers a diagonal FOV?50°, a horizontal FOV?40 and a vertical FOV?25°. The combiner also delivers a large horizontal eye box up to 20 mm and a vertical eye box of 10 mm while maintaining high light efficiency of the real scene (e.g. >80%). The system is able to use a light engine based on broadband (10 nm????30 nm) LEDs and maintain a large horizontal field of view and high transmission of the real imagery. The approach resolves issues with current embodiments including astigmatism, image overlap, color balance, and small light engine pupils leading to reduced eye boxes.

Abstract: A system and a method for displaying a scene are provided. The system includes a display configured to emit light, a spatial light modulator configured to modulate input light based on a transparency value, and at least one processor configured to acquire adjustment information including transparency of the spatial light modulator and light intensity information of the display from a plurality of pieces of view information corresponding to the scene and adjust an intensity value of the light emitted from the display and the transparency value of the spatial light modulator based on the adjustment information, wherein the plurality of pieces of view information are optical information of the scene, the optical information having been acquired at a plurality of viewpoints.

Abstract: A holographic optical element includes a set of holograms formed in one or more layers of holographic material. The set of holograms includes a red hologram that is exclusively responsive to a first wavelength of red light incident thereon over a first range of angles of incidence, a green hologram that is exclusively responsive to a second wavelength of green light incident thereon over the first range of angles of incidence, and a blue hologram that is exclusively responsive to a third wavelength of blue light incident thereon over the first range of angles of incidence.

Abstract: A wearable heads-up display includes a support structure that in use is worn on a head of a user, a scanning laser projector carried by the support structure, and a holographic optical element carried by the support structure. The holographic optical element includes a set of holograms formed in one or more layers of holographic material. The set of holograms includes a red hologram that is exclusively responsive to red laser light incident thereon over a first range of angles of incidence, a green hologram that is exclusively responsive to blue laser light incident thereon over the first range of angles of incidence, and a blue hologram that is exclusively responsive to green laser light incident thereon over the first range of angles of incidence.

Abstract: A head-mounted image display device includes a device main body configured to display an image to allow a user to view the image, and a supporting member configured to support the device main body, and to be mounted on the head of the user. The supporting member includes an upper extension portion and a lower extension portion, each extending in a left-and-right direction, and a light guide member configured to guide the image to an eye of the user is interposed between the upper extension portion and the lower extension portion in an up-and-down direction of the user.

Abstract: A deflector includes a support substrate including a curved portion that is curved along a first direction intersecting a thickness direction and that includes a convex curved surface convex to a first side in the thickness direction, a holographic element laminated on the curved portion, and a holder configured to hold the support substrate. The holographic element is configured to deflect light incident on the curved portion at least in the first direction. The holder includes a first fixing portion fixed to, in a thickness direction, a first supported portion that is an end portion of the curved portion of the support substrate on a first side in the first direction, and a second fixing portion fixed to, in the thickness direction, a second supported portion that is an end portion of the curved portion on a second side in the first direction by adhesive bonding and the like.

Abstract: An eye-tracking system is provided that includes a light source configured to emit at least infrared (IR) light and a microelectromechanical system (MEMS) scanning mirror configured to direct the IR light. The system further includes a relay including at least one prism, and the relay is configured to receive the IR light directed by the MEMS scanning mirror and redirect the IR light. The system further includes a waveguide through which the IR light redirected by the relay passes to reach an eye, and at least one sensor configured to receive the IR light after being reflected by the eye.

Abstract: An apparatus (100) for deriving a gaze direction of a human eye (150) includes a light-guide optical element (LOE) (120) having pair of parallel faces (104a), (104b) deployed in facing relation to the eye (150). A coupling-in configuration, such as a set of partially-reflective surfaces (145), is associated with LOE (120) and configured for coupling-in a proportion of light incident on face (104a) so as to propagate within the LOE. Focusing optics (106) associated with LOE (120) converts sets of parallel light rays propagating within the LOE into converging beams of captured light which are sensed by an optical sensor (125). A processing system (108) processes signals from the optical sensor (125) to derive a current gaze direction of the eye. Despite the aperture-combining effect of the LOE, retinal images can be effectively recovered as the only image information brought to focus on the optical sensor.

Abstract: The present invention comprises: a display module; a case in which the display module is installed; one pair of support legs connected to the case and supported by the head of a wearer; a motion sensor for sensing the motion of the head of the wearer; a load adjuster for adjusting a load to be applied from the support legs to the head of the wearer; and a control unit for controlling the load adjuster according to a sensing result of the motion sensor, thereby reducing a load to be applied to the head of the wearer during a static wearing so as to provide comfort to the wearer and increasing a load to be applied to the head of the wearer during a dynamic wearing so as to minimize shaking.

Abstract: A method of ordering an ophthalmic lens comprises the following steps: —obtaining data representative of a desired correction for a wearer's eye; —determining (S6, S8), using an electronic device, a lens power to be measured on a lensmeter based on the obtained data and on at least one parameter defining an expected position of the lens with respect to the wearer's eye, wherein the lens power corresponds to the power measured on the lensmeter for a lens adapted to provide the desired correction to the wearer's eye when placed at the expected position with respect to the wearer's eye; —ordering (S10) the ophthalmic lens specifying the determined power. A corresponding system is also provided.

Abstract: An ophthalmic lens producing an electrical current by means of two opposing electrode plates includes a matrix and a friction-based generator of electricity. The generator is in the matrix and includes a top electrode and a bottom electrode. The top electrode includes a polymer layer and a first metal layer stacked together. The bottom electrode includes a second metal layer facing the second metal layer. In an initial state, the second metal layer and the polymer layer are spaced apart from each other. In a contact state, the second metal layer and the polymer layer are configured to be in contact, through eye movement, to produce electricity.

Abstract: An eye-protective shade for the Augmented Reality (AR) smart glasses is provided, including: an eye protection unit disposed in from a the AR smart glasses, wherein the eye protection unit is disposed with a pair of shading portions capable of filtering light, and the pair of the shading portions respectively correspond to a pair of semitransparent display portions disposed on the AR smart glasses, and the pair of shading portions are made of translucent material and/or opaque material; when reading digital information by use of the eye-protective shade along with the AR smart glasses, the eye-protective shade protects the user's eyeballs and the macula from direct light radiation while the peripheral retina is continuously in contact with external light sources. The present disclosure can change the user's reading habits and moderate visual fatigue when reading.

Abstract: A multipurpose eyewear system and apparatus is provided. An embodiment provides a film, vinyl, or other substance that may be removably applied to the lenses to provide the lenses with additional functionality. An embodiment provides a contoured and flexible frame and lens system that fits to a user's face. Additional functionality may be included by removable/replaceable lenses and/or removable/replaceable films. An embodiment provides a replaceable lens system that is either contoured or flat to provide compact and easy manufacturing, shipping, cleaning, and storing.

Abstract: A display device including a display panel having an active area to display an image, and an inactive area provided with a pattern disposed thereto to apply an electrical signal to the active area, a side cover having a peripheral frame disposed at an outer portion of the display panel to form a side portion exterior of the display device, and a support frame extended from the peripheral frame to be disposed at a rear of the display panel and supporting the display panel, and a black matrix disposed at a front of the inactive area to hide a pattern of the inactive area.

Abstract: The present disclosure relates to optical switching devices and switch modules that are designed for long-term security monitoring of high-value infrastructure access entry points. Embodiments in accordance with the present disclosure include optical switches based on fiber-Bragg gratings whose operating wavelengths are based on the presence or absence of magnetic coupling between an embedded permanent magnet and an external element. By monitoring the spectral position of the operating wavelengths and/or the magnitude of a light signal at the operating wavelengths, the state of the magnetic coupling can be determined and used as an indicator of whether the security switch has been actuated.

Abstract: A stacked body includes a first resin film, a first electrode portion, a first alignment film, and a sealing material which are stacked, wherein the first alignment film has a permeation region where at least a part of components constituting the sealing material permeate.

Abstract: A display apparatus includes a plurality of gate lines extending in a first direction, a plurality of data lines extending in a second direction crossing the first direction, and a plurality of pixels connected to the gate lines and the data lines. Each of the pixels includes a first sub-pixel, a second sub-pixel, and a third sub-pixel disposed in an i-th row and a fourth sub-pixel disposed in an (i+1)-th row. The first, second, and third sub-pixels and the fourth sub-pixel are disposed with the i-th gate line between the fourth sub-pixel and the first, second, and third sub-pixels and connected to the i-th gate line, and the first, second, third, and fourth sub-pixels are connected to different data lines from each other.

Abstract: The disclosure discloses an array substrate, a liquid crystal panel, and a process of fabricating the array substrate. The array substrate includes an orientation film, an upper electrode, a lower electrode, and an intermediate electrode located between the upper electrode and the lower electrode, wherein the intermediate electrode is configured to have drive voltage applied thereto when there is zero relative voltage between the upper electrode and the lower electrode, so that an electric field is generated between the intermediate electrode and the lower electrode, and a direction of the electric field is parallel to an orientation direction of the orientation film.

Abstract: A liquid crystal eWriter device with user adjustable select erase includes a front substrate formed of a flexible, polymeric material. Electrically conductive layers are spaced apart from each other. A dispersion layer includes a dispersion of cholesteric liquid crystal material and polymer disposed between the electrically conductive layers, wherein pressure applied to the front substrate changes a reflectance of the cholesteric liquid crystal material forming an image. Electronic circuitry is adapted to fully and selectively erase the image by applying a full erase voltage waveform and a select erase voltage waveform, respectively, to the electrically conductive layers. The image is select erased by applying the select erase voltage waveform to the electrically conductive layers while applying pressure to the front substrate and tracing a portion of the image.

Abstract: The present disclosure provides a color changing device, a display module, a manufacturing method thereof, and a display control method. The color changing device includes a plurality of color changing blocks and a color control circuit connected to the plurality of color changing blocks and configured to control each color changing block to exhibit a corresponding color. Each color changing block includes a transparent electrode, a transparent insulation layer arranged on the transparent electrode and provided with a groove, gold nanoparticles filled in the groove and electrically connected to the transparent electrode, and a plurality of electrode sheets coated with silver ions and covering the groove. The electrode sheets of different color changing blocks are insulated from each other.

Abstract: Disclosed is a display device, including a display panel having a plurality of pixel units, a protection cover plate disposed on a light exit surface of the display panel, and a plurality of light sensing devices for pattern recognition disposed on one side of the pixel unit facing away from the light exit surface, and a light collimating member disposed between the protection cover plate and the plurality of light sensing devices, wherein orthogonal projections of the light sensing device and the pixel unit on the display panel do not overlap each other, and the light collimating member has a light transmitting area above the light sensing device and a light shielding area outside the light transmitting area.

Abstract: The embodiments of the disclosure relate to the field of display technology and provide a counter substrate, a liquid crystal display panel and a method for eliminating bright spots, which can avoid bright spots caused by foreign bodies and reduce cost. The counter substrate includes a substrate, a black matrix and an orientation layer disposed on the substrate, and a wall. The black matrix at least includes a plurality of first light shielding strips. An orthographic projection of the wall on the substrate is covered by an orthographic projection of the plurality of first light shielding strips on the substrate. The wall extends along a first direction that intersects an orientation direction of the orientation layer.

Abstract: A liquid crystal display device and a method for improving color difference of viewing angles thereof, wherein, the liquid crystal display device comprises a backlight module (10), a LCD panel (20) and a liquid crystal dimming panel (30), the LCD panel (20) is disposed on the backlight module, the liquid crystal dimming panel (30) is disposed on the LCD panel (20), and the LCD panel (20) is located between the backlight module (10) and the liquid crystal dimming panel (30). The LCD panel (20) is provided with a plurality of groups of image pixel groupings (21) arranged in a form of an array, a light energy of viewing angles among liquid crystal molecules in the liquid crystal dimming panel (30) is adjusted appropriately by controlling driving voltages of the liquid crystal dimming panel (30) with respect to positions of different groups of image pixel groupings (21).