Abstract: Some embodiments of an example apparatus may include a display, a first controllable diffuser overlaying the display, the first controllable diffuser being selectively operable to diffuse light in a first diffusion direction, and a second controllable diffuser overlaying the display, the second controllable diffuser being selectively operable to diffuse light in a second diffusion direction substantially perpendicular to the first diffusion direction. In some embodiments, an example method may include emitting a light beam from a light emitting device; linearly polarizing the light beam; passing the light beam through LC and birefringent materials; and applying a voltage to alter polarization of the LC material, from a first state causing the light to diffuse in a first direction upon passing through the birefringent material, to a second state causing the light beam to diffuse in a second direction upon passing through the birefringent material.

Abstract: A lighting device disclosed in an embodiment of the invention includes a substrate; a plurality of light emitting devices on the substrate; a first reflective layer on the substrate; a resin layer on the first reflective layer and including a first surface from which light emitted from the light emitting device is extracted; a second reflective layer on the resin layer; and a light extraction layer on the first surface of the resin layer, wherein the first surface of the resin layer has a convex portion having a convex exit surface facing to each of the light emitting devices, and concave portions between the convex portions, and the light extraction layer may include a first extraction portion having protrusions on each exit surface, and second extraction portions concave between the plurality of protrusions.

Abstract: The present invention provides a quantum dot display panel, a quantum dot display device, and a preparation method thereof. The quantum dot display panel includes an array substrate, a color film substrate, and a liquid crystal disposed between the array substrate and the color film substrate, wherein the color film substrate includes a cover plate, a light-cutoff layer, a quantum dot pixel layer, a blocking layer, a reflection layer, a coating layer, a built-in polarizing layer, an isolation unit, and a polyimide (PI) layer.

Abstract: A backlight module is provided. The backlight module has an active region and a border region adjacent to the active region. The backlight module includes an optical plate, a light source and a reflection-reducing component. The light source is disposed corresponding to the optical plate and emits a light to the optical plate. The optical plate is disposed on the reflection-reducing component in the border region.

Abstract: An optical lens capable of facilitating efficient light distribution control with a simple configuration includes a plurality of light distribution control parts arranged in a bilateral direction such that each of the light distribution control parts corresponds to each column of LEDs. The light distribution control parts define optical paths of light from the LEDs. The optical paths are sequentially shortened from one end side to the other end side in the bilateral direction. The light distribution control parts guide the light in a direction that intersects optical axes of the LEDs.

Abstract: A mobile terminal is provided. The mobile terminal includes a display screen; a flexible circuit board below the display screen and being provided with a first light source; an optical fingerprint module below the display screen, wherein a fingerprint recognition area is disposed on a surface of the optical fingerprint module facing the display screen, and the flexible circuit board is located outside the optical fingerprint module; a light guide part disposed at the periphery of the fingerprint recognition area and capable of receiving light emitted by the first light source.

Abstract: A lighting module for illuminating cultivated crops in indoor farming comprises at least one monolithic efficiency enhancing optical element (EEOE) further comprising: (a) a front portion comprising a spectrum conversion layer; (b) an optically transparent middle body portion having at least one light source embedded there within and configured to emit spectrally controllable radiation; and (c) a back portion configured to reflect the radiation emitted by the spectrum conversion layer to the cultivated crops. The back portion has a central area being adjacent to the optically transparent middle body portion configured for reflecting radiation propagating within the optically transparent middle body portion and a peripheral area configured for reflecting radiation emerged from the optically transparent middle body portion via the side surface.

Abstract: According to one embodiment, an electronic equipment includes a liquid crystal panel including a display portion, a polarizer superposed on the display portion, and a detection element superposed on the liquid crystal panel and the polarizer to detect infrared rays through the liquid crystal panel and the polarizer.

Abstract: An illuminating device including a circuit board, a first light emitting member, a housing, a transparent support member, a light diffusing member, and a light guide member is provided. The first light emitting member is disposed on the top surface of the circuit board to emit light. The housing is disposed to cover the circuit board from above, and has a symbol configured to be illuminated by the light. The support member is disposed under the housing. A first surface of the support member is shaped to conform to the bottom surface of the housing and a second surface of the support member is flat. The light diffusing member has a side surface that receives the light, is fixed to the second surface of the support member, and diffuses the light toward the symbol. The light guide member guides the light to the side surface of the light diffusing member.

Abstract: According to one embodiment, an illumination device includes a light source disposed along a first direction, a light guide plate including a first end and a second end, the second end being positioned to be opposite to the first end in a second direction which crosses the first direction, a frame disposed along the second end and including an inner surface and an upper surface, and an adhesion member disposed on at least the upper surface of the frame, wherein the light source is disposed at the first end along the first direction, at least the inner surface of the frame is a light absorbing surface, and the adhesion member is light transmissive.

Abstract: A method, apparatus, and system are disclosed for increasing light extraction efficiency in a light guide optical system. The light guide optical system may comprise a light emitting source. The light emitting source may be, for example, a light-emitting diode (LED) or plurality of LEDS. The light guide optical system may also comprise a light guide plate (LGP). The LGP may include light extraction features located on surfaces of the LGP. The LGP may also include a shaped injection surface on an input surface of the LGP. The shaped injection surface may be angled to deviate near-parallel light emitted from the LED to enable the near-parallel light emitted from the LED to be extracted from the LGP via the light extraction features. The shaped injection surface may be a split edge (i.e. a V-groove) or a curved edge.

Abstract: A display device including a display panel, a light guide plate and a light emitting module is disclosed. The light guide plate is opposite to the display panel and has a light incident surface. The light emitting module emits a light to the light incident surface. The light emitting module includes a substrate, multiple first light emitting elements and multiple second light emitting elements. The first light emitting elements are disposed on the substrate along the first direction and divided into multiple first luminous areas. Each first luminous area includes at least two first light emitting elements. The second light emitting elements are disposed on the substrate along the first direction and divided into multiple second luminous areas. Each second luminous area includes at least two second light emitting elements. The first and second luminous areas are staggered along the second direction perpendicular to the first direction.

Abstract: According to an aspect, a display device, includes: a display panel that includes a polymer-dispersed liquid crystal sealed between two facing substrates and is configured to display a frame image by arranging a plurality of line images in a scanning direction; and a light source that is configured to emit light from one side surface side of the display panel. One frame period assigned to the frame image includes an image display period and a luminance correction period, and a total luminance of the display panel during the luminance correction period is increased with decreasing distance from an opposite side of the one side surface side.

Abstract: A display apparatus including a display panel having a display surface on which an image is displayed, and a light condensing member disposed on an upper portion of the display surface. The light condensing member includes a lower condensing layer having a plurality of protrusions protruding upward, and an upper condensing layer having a higher refractive index than the lower condensing layer and disposed on an upper portion of the lower condensing layer to cover the top surface of the lower condensing layer. The protrusions include an upper surface having a planar shape, and a side surface extending downward from an edge of the upper surface and having a curved shape.

Abstract: A liquid crystal display includes a guide panel configured to guide a position of a liquid crystal display panel and a backlight unit, a cover bottom, and a rear cover. The guide panel includes a panel supporter extended in a first direction and including a second groove, and an extension extended from the panel supporter in a second direction intersecting the first direction and including a first groove. The cover bottom includes a horizontal portion extended in the first direction, and a vertical portion extended from the horizontal portion in the second direction. One end of the vertical portion is inserted into the second groove. The rear cover includes a body covering a back surface of the horizontal portion, and a hook protruding from the body in the first direction and inserted into the first groove.

Abstract: An optical device includes a light guide plate configured to guide light entering therein, and cause said light to exit from an emission surface thereof and thereby form an image in a space; a group of narrow-view optical-path deflectors configured to form an image in a space within a narrow view direction taken as greater than or equal to 0° and less than a first angle relative to a reference plane that is orthogonal to the emission surface and parallel to a side surface of the light guide plate; and a group of wide-view optical-path deflectors configured to form an image in a space within a wide view direction taken as greater than or equal to the first angle and less than 90° relative to the reference plane. The group of narrow-view optical-path deflectors and the group of wide-view optical-path deflectors have different image forming conditions.

Abstract: Printed matter that includes a light-transmissive substrate, a laminated clear layer, and a light adjustment layer. The laminated clear layer is disposed above a main surface of the substrate, and is composed of clear element layers that are light-transmissive. The light adjustment layer has a function of adjusting an amount of light transmitted therethrough and is disposed on the laminated clear layer and/or interposed between a plurality of the clear element layers. The adjustment layer includes light reflective particles and covers a portion of a surface of a layer thereunder. Each of the light reflective particles is granular and has a light reflective surface. The light adjustment layer, in terms of surface area ratio in plan view, covers from 2% to 50% of the surface of the layer thereunder.

Abstract: A method, apparatus, and system are disclosed for increasing light extraction efficiency in a light guide optical system. The light guide optical system may comprise a light emitting source. The light emitting source may be, for example, a light-emitting diode (LED) or plurality of LEDS. The light guide optical system may also comprise a light guide plate (LGP). The LGP may include light extraction features located on surfaces of the LGP. The LGP may also include a shaped injection surface on an input surface of the LGP. The shaped injection surface may be angled to deviate near-parallel light emitted from the LED to enable the near-parallel light emitted from the LED to be extracted from the LGP via the light extraction features. The shaped injection surface may be a split edge (i.e., a V-groove) or a curved edge.

Abstract: A light guide plate, a light source assembly, a display panel and a display device are provided. The light guide plate includes a light-emitting surface, a bottom surface opposite to the light-emitting surface and a light-entering surface intersecting with the light-emitting surface and the bottom surface; at least one of the light-emitting surface of the light guide plate and the bottom surface of the light guide plate includes a horizontal portion and an inclined portion protruding out of a plane where the horizontal portion is located along a direction away from both of the light-emitting surface and the bottom surface; the inclined portion is at an end, which is close to the light-entering surface, of the light guide plate, and the inclined portion has an included angle with respect to the horizontal portion.

Abstract: A backlight module and a liquid crystal display device are provided. The backlight module includes a heat-dissipating body, a light source and a back plate. A side wall of the back plate includes a through hole portion. The heat-dissipating body is detachably installed at an outer side of the side wall of the back plate and covers the through hole portion, and the light source is received inside the through hole portion.

Abstract: The invention relates to an electronic board (1) comprising: —a printed circuit (2) having a connection face (3) defining a plane (X, Y) comprising at least one transfer area (4), —an electronic component (5) comprising at least one contact terminal (6), each contact terminal (6) being brazed or sintered on an associated transfer area (4) by means of a brazing joint or of a sintering joint (7), the electronic board being characterised in that an orthogonal projection of the contact terminal (6) of the electronic component (5) on the connection face (3) of the printed circuit does not overlap the associated area (4).

Abstract: The present disclosure provides an optical element used in a reflection-type liquid crystal display system. The optical element includes a substrate, and a plurality of prisms formed on a surface of the substrate and sequentially arranged along a first direction. Each of the plurality of prisms includes a plurality of sub-prisms sequentially arranged along the first direction with refractive indexes sequentially decreased.

Abstract: A lighting subassembly and components are provided which increase light output and uniformity of brightness and color by use of an optical element that functions simultaneously as an outcoupling TIR light guide and a direct throughput lens. It provides typical benefits of an edgelit light guide design including shallow depth, extended emitting area, and off axis light distributions such as batwing distributions particularly useful in downlighting and other lighting applications. Additionally, area dedicated to bezels or edge reflectors can be greatly reduced or eliminated due to decreased hotspotting to provide a fixture face with very high percentage of light emitting area.

Abstract: A luminaire for providing configurable static lighting or dynamically-adjustable lighting. The luminaire uses an array of focusing elements that act on light provided via a corresponding array of sources or via an edge-lit lightguide. Designs are provided for adjusting the number of distinct beams produced by the luminaire, as well as the angular width, angular profile, and pointing angle of the beams. Designs are also provided for systems utilizing the adjustable luminaires in various applications.

Abstract: A touch display device includes a display module, a touch module and a light-transmitting substrate. The display module has a display surface and a bottom surface opposite to the display surface. The touch module is fixed to the display surface by an adhesive. The adhesive, the touch module and the display surface jointly define an accommodating space between the display module and the touch module. The light-transmitting substrate is disposed in the accommodating space. One side of the light-transmitting substrate is fixed to the display surface by a first optical adhesive, and the other side of the light-transmitting substrate is fixed to the touch module by a second optical adhesive. An adhesive strength of the adhesive is higher than an adhesive strength of the first optical adhesive, and the adhesive strength of the adhesive is higher than an adhesive strength of the second optical adhesive.

Abstract: A display apparatus including a display panel having a display surface on which an image is displayed, and a light condensing member disposed on an upper portion of the display surface. The light condensing member includes a lower condensing layer having a plurality of protrusions protruding upward, and an upper condensing layer having a higher refractive index than the lower condensing layer and disposed on an upper portion of the lower condensing layer to cover the top surface of the lower condensing layer. The protrusions include an upper surface having a planar shape, and a side surface extending downward from an edge of the upper surface and having a curved shape.

Abstract: A display module includes a light guide plate; a display panel disposed on the light guide plate; and a plurality of fixing parts disposed between an edge of the light guide plate and an edge of the display panel. The fixing parts are spaced apart from each other, and each of the fixing parts includes: a sidewall portion facing a side surface of the light guide plate; a bottom portion extended from a first end of the sidewall portion to face the light guide plate; and a ceiling portion extended from a second end, opposite the first end, of the sidewall portion to face the display panel.

Abstract: A display apparatus includes a display unit, a support, a cover member, and a first interposition member. The display unit displays an image. The support supports the display unit. The cover member is disposed with a gap between the cover member and the display unit and covers the display unit. The first interposition member is interposed between the support and the cover member, and is in contact with the support and the cover member. The first interposition member has elasticity and thermal conductance.

Abstract: Side light LED troffer tube. In an aspect, a side light LED tube is provided that includes a tube having at least one light receiving portion configured to receive light and gradient optics formed on the tube. The gradient optics providing a transparency gradient configured to distribute the light to achieve a selected emitted light intensity variation across a selected surface of the tube.

Abstract: An image display device is a self-luminous type device including a light emitting portion, and a casing portion of a display device unit has a heat dissipating structure portion through which a part of the image display device is exposed for heat dissipation. In manufacturing the display device unit, when performing simple and reliable assembly while securing a high heat dissipation characteristic, for example, by using characteristics of a silicon substrate, high accurate positioning is performed in a display device positioning portion.

Abstract: A light guide film which is adapted for use with a light source has a light transmissive substrate and a light-transmissive member unit. The substrate has a light-exiting top surface, a bottom surface that is opposite to the top surface and a lateral surface that interconnects the top and bottom surfaces and that is adapted to face toward the light source. The member unit includes a bottom member that is disposed on the bottom surface of the substrate, and a lateral member that is connected to the lateral surface of the substrate and that is adapted to be disposed between the light source and the lateral surface of the substrate. The substrate has a refractive index which is less than that of the member unit.

Abstract: A display device includes a backlight unit. A display module configured to display an image is disposed on the backlight unit. A light conversion member is disposed between the display module and the backlight unit. The backlight unit includes a light source unit configured to generate light and a light guide plate configured to guide the light generated by the light source unit. The light conversion member includes a transfer layer disposed on the backlight unit and a light conversion layer disposed on the transfer layer.

Abstract: A light irradiation device includes a light source having a plurality of solid-state elements disposed on a substrate to be defined by a first direction and a second direction in a plurality of rows and irradiate the irradiation target with light from a third direction, an optical element refracting light from the solid-state elements, emitting the light and narrowing a spread angle of light to be emitted from the solid-state elements relative to the third direction, a first reflection portion having at least two first reflection surfaces on a downstream side in the third direction of the irradiation target and reflecting a part of light incident on the first reflection surface to the irradiation target, and a second reflection portion having a pair of second reflection surfaces disposed between the optical element and the first reflection portion and guiding light from the optical element to the first reflection surface.

Abstract: An objective of the present disclosure is to obtain a light guide and an image reading apparatus capable of efficiently irradiating an object to be irradiated (1). The light guide and the image reading apparatus include a rod-shaped light guide main body (2) extending in the longitudinal direction, a first end face (3) that is an end face of the light guide main body (2) along the transverse direction, a light scattering pattern (5) that scatters light that enters from the first end face (3) and is guided inside the light guide main body (2), and a light emission surface portion (6) formed on the light guide main body along a longitudinal direction, the light emission surface portion (6) being a surface from which the light scattered at the light scattering pattern (5) is emitted to outside the light guide main body (2) after being reflected on a wall surface of the light guide main body (2).

Abstract: A wearable device and an electronic device are provided. The wearable device includes a flexible circuit configured to electrically connect a touch sensor to a main board, a first waterproof member contacting a first surface of the flexible circuit and being elastically deformable, and a second waterproof member contacting a second surface of the flexible circuit and being elastically deformable.

Abstract: Embodiments of the present invention relate to a lighting apparatus which allows a three dimensional effect to be felt while surface light is emitted in a light source using a half-mirror member configured to reflect and transmit some light. Particularly, the present invention employs a half-mirror member configured to transmit some light emitted from a light source module configured to emit surface light and reflect the remaining light to implement an image like that reflected by a mirror when the lighting apparatus is off and a light image through which various three-dimensional images are felt when the lighting apparatus is on.

Abstract: A reflective display apparatus including a reflective display panel, a transparent cover plate, and a light source is provided. The transparent cover plate is disposed on one side of the reflective display panel. An air gap exists between the reflective display panel and the transparent cover plate. The light source is disposed between the reflective display panel and the transparent cover plate, and a light emitted by the light source travels towards the air gap before irradiating the transparent cover plate or the reflective display panel.

Abstract: A display device is provided that includes a display panel, a light guide plate on a rear side of the display panel, a reflector on a rear surface of the light guide plate, a cover bottom on a rear surface of the reflector, wherein the cover bottom is made of a glass material, and a light-emitting diode (LED) housing including an LED on one end thereof to supply light to an end of the light guide plate, another end of the LED housing being coupled to a rear surface of an end of the cover bottom.

Abstract: Method for controlling the light distribution of a traffic route luminaire (1) in a network of luminaires, which is preferably also organized as a mesh network. The luminaire has a luminaire head having a settable light module and a controller, the light distribution of the luminaire being variable. The luminaire communicates luminaire data to at least one server, the luminaire data being luminaire-specific and including the installation location of the luminaire. The method comprises the steps of: —automatically allocating a light distribution to the luminaire (1) in accordance with the communicated luminaire data; —automatically setting the light module on the basis of the allocated light distribution; and determining, by said at least one server, a light distribution class of the traffic route luminaire on the basis of a traffic route topology (2,3,4,5,6).

Abstract: A light guide plate includes a light incident surface to which a light is configured to be incident, a light exit surface from which the light incident through the light incident surface is configured to exit, a bottom surface facing the light exit surface configured to reflect at least a portion of the incident light, and a scattering pattern disposed on the bottom surface. The scattering pattern includes a first protrusion portion protruding from the bottom surface, a recess portion disposed along a circumference of the first protrusion portion and recessed from the bottom surface and a second protrusion portion spaced apart from the first protrusion portion and disposed along a portion of the recess portion.

Abstract: A light guide film which is adapted for use with a light source has a light transmissive substrate and a light-transmissive member unit. The substrate has a light-exiting top surface, a bottom surface that is opposite to the top surface and a lateral surface that interconnects the top and bottom surfaces and that is adapted to face toward the light source. The member unit includes a bottom member that is disposed on the bottom surface of the substrate, and a lateral member that is connected to the lateral surface of the substrate and that is adapted to be disposed between the light source and the lateral surface of the substrate. The substrate has a refractive index which is less than that of the member unit.

Abstract: Disclosed is a touch keypad comprising: an upper plate having a flat plate shape; a touch sensor formed on an upper side of the upper plate; a lower plate disposed to be spaced on a lower side of the upper plate; a connection member connecting the upper plate to the lower plate and supporting the upper plate so that the upper plate ascends and descends; a position sensor for detecting whether the upper plate ascends or descends; and a control unit for selecting a keypad mode or mouse mode according to a detected value of the position sensor.

Abstract: The present invention relates to a substrate for color conversion, a manufacturing method therefor, and a display device comprising the same and, more specifically, to a substrate for color conversion for not only securing the long-term stability of quantum dots but also exhibiting excellent color conversion efficiency, a manufacturing method therefor, and a display device comprising the same. To this end, the present invention provides a substrate for color conversion, a manufacturing method therefor, and a display device, the substrate for color conversion comprising: a thin plate glass; a coating layer for quantum dots formed on one surface of the thin plate glass; a light guide plate disposed to face the coating layer for quantum dots, a light emitting diode being disposed on the sides thereof; and a sealing material which is formed between the thin plate glass and the light guide plate and which blocks the coating layer for quantum dots from the outside.

Abstract: A display device includes a display panel, a cover, a bonding member, a guide mold and at least one fastening member. The cover is above the display panel. The bonding member is on a surface of the cover and includes a plurality of non-recessed portions and a plurality of recessed portions between the plurality of non-recessed portions. The guide mold accommodates a light source below the display panel and includes a plurality of protruding portions protruding from a side surface thereof, each of the plurality of protruding portions respectively corresponding to each of the plurality of non-recessed portions. The at least one fastening member penetrates a corresponding one of the plurality of protruding portions of the guide mold to be fastened to a corresponding one of the plurality of recessed portions.

Abstract: A semiconductor device mounting structure includes a semiconductor device and a mounting substrate. The semiconductor device includes a first external connection terminal and a device-side mounting insulating region. The first external connection terminal is provided at a first end and has a metal region on a semiconductor mounting surface of the semiconductor device. The device-side mounting insulating region is defined by the metal region on the semiconductor mounting surface. The semiconductor mounting surface faces a substrate mounting surface. The mounting substrate has on the substrate mounting surface a land pattern made of an electrically conductive material to be electrically connected to the first external connection terminal. The land pattern is provided in a first shape to surround the device-side mounting insulating region and includes a land-side insulating region which has a second shape to correspond to a periphery of the device-side mounting insulating region.

Abstract: Exemplary embodiments of the inventive concept provide a display device including a bottom cover having a bottom portion and a sidewall and a support frame. The bottom portion has at least one rounded corner having a first radius, and a sidewall is bent upward from an edge of the bottom portion. The support frame includes at least one rounded corner having a shape corresponding to the rounded corner of the bottom portion and having a second radius greater than the first radius.

Abstract: A liquid crystal display (LCD) device including a backlight with an LED assembly. The LED assembly includes a flexible light combiner and two or more different color LEDs optically coupled with a first end of the flexible light combiner. The flexible light combiner includes light channels that transmit color light, and output the color light at a second end of the flexible light combiner. The second end defines a light output region of the flexible light combiner. The light output regions of multiple LED assemblies are arranged behind an LCD panel, along one or more edges, to illuminate the LCD panel. The LED assembly provides edge-lit backlighting with enhanced brightness and color gamut, and flexible LED placement within the LCD device.

Abstract: This invention relates to a light guide plate and a backlight unit including the same, and more particularly to a light guide plate, which is configured such that a surface layer having desired optical properties and hardness is provided in the form of a thin film on one surface of a substrate layer having excellent optical properties and exhibiting dimensional stability regardless of an external environment, thus manifesting superior processability and scratch resistance and minimizing luminance degradation, and to a backlight unit including the same.

Abstract: A display device includes a backlight unit and a display panel disposed on the backlight unit. The backlight unit includes a light guide plate including a plurality of charged particles, a light source unit disposed at a side of the light guide plate and providing light to the light guide plate, and a transparent electrode disposed under the light guide plate. Each of the plurality of charged particles includes first and second charged portions which have charge values of which polarities are different from each other. The first charged portion reflects the light received from the light source unit, and the second charged portion absorbs the light received from the light source unit. Positions of the first and second charged portions of each of the plurality of charged particles are controlled based on a voltage applied to the transparent electrode.

Abstract: A display device includes: a lower frame having a planar shape, where a first groove is defined in an edge of the lower frame; a first intermediate frame coupled to the lower frame to define an accommodating space, where the first intermediate frame includes a side wall portion on an edge of the lower frame; a first adhesive member on the first groove, where the first adhesive member fixes the first intermediate frame to the lower frame; a second intermediate frame on the first intermediate frame; a display panel on an upper surface of the second intermediate frame; and a second adhesive member on the upper surface of the second intermediate frame, where the second adhesive member fixes the display panel to the second intermediate frame.