Abstract: A display apparatus includes a backlight source, a privacy filter disposed on the backlight source, a light adjusting panel disposed on the privacy filter, and a display panel disposed on the light adjusting panel. The light adjusting panel includes a first substrate, a first electrode, a second electrode, a first vertical alignment film disposed on the first substrate, a second substrate disposed opposite to the first substrate, a second vertical alignment film disposed on the second substrate, and a positive liquid crystal layer disposed between the first vertical alignment film and the second vertical alignment film. The first electrode and the second electrode are disposed on the first substrate. Here, the first electrode has a plurality of first slits, and a plurality of orthogonal projections of the first slits on the first substrate overlap an orthogonal projection of the second electrode on the first substrate.

Abstract: A display panel, a display assembly, a display apparatus and a drive method therefor are disclosed. The display panel includes a first display area and at least one second display area. The first display area includes first sub-pixels, and the first sub-pixels are non-transparent sub-pixels. The at least one second display area includes second sub-pixels, and the second sub-pixels are transparent sub-pixels.

Abstract: A sheet used for coating an optical semiconductor element is used for directly or indirectly covering an optical semiconductor element, and includes a white layer containing white particles; and a light diffusion layer containing light-diffusing particles, in this order in a thickness direction.

Abstract: A backlight module and a manufacturing method thereof are disclosed. The backlight module includes a frame, a thin-film thermoelectric device set, a first heat conductive layer, a light emitting diode (LED) light, a bulk thermoelectric device set, and a second heat conductive layer. The manufacturing method for backlight module includes a device preparing step, a thin-film thermoelectric device set mounting step, a first heat conductive layer preparing step, an LED light mounting step, a bulk thermoelectric device set mounting step, and a bulk thermoelectric device set mounting step. The technical effect of the invention is to realize the heat dissipation and the recovery and utilization function of the waste heat.

Abstract: An electro-optical system includes a voltage supply device, an active polarizing layer, a retarding layer, and a reflective layer. The active polarizing layer is electrically coupled to the voltage supply device. The active polarizing layer is configured to switch back and forth between a non-polarized state and a polarized state as the voltage supply device supplies varying levels of voltage. The retarding layer is configured to alter the polarization state of light traveling through it. The reflective layer is positioned adjacent to the retarding layer.

Abstract: An optical system for an augmented reality head mounted display eyepiece that is configured to deliver images to the eye wherein the optical system includes optics. The optics are disposed so as to receive light output from the light source. The optics further arranged with respect to a spatial light modulator such that the light received from the light source passes through the optics and illuminates the spatial light modulator. The light illuminating the spatial light modulator is redirected back through the optics and is coupled into at least one waveguide through at least one in-coupling optical element. At least a portion of the coupled light is ejected from at least one waveguide by at least one out-coupling optical element and directed to the eye of the user.

Abstract: To provide a technique for suppressing brightness non-uniformity of an area illuminated by a light source and also suppressing a decline in contrast between areas caused by incidence of a luminous flux of the area to another area. Provided is a light guide plate including: a diverging portion which is provided on an opposite side of a light exit surface from which light is emitted, the diverging portion causing a luminous flux emitted from a light emitting element to diverge; and a restricting portion which is provided, when a prescribed range from the light emitting element on the light exit surface is defined as an illuminated area illuminated by the light emitting element, in at least a periphery of the illuminated area on the light exit surface and which deflects or shields light traveling from inside toward outside of the illuminated area to restrict traveling, toward a side of the light exit surface, of light traveling toward the outside of the illuminated area.

Abstract: A diffusive reflector for a lighting apparatus comprising a backing part upon a surface of which is disposed an interface part(s) wherein the interface part(s) is at least partially diffusively reflective optically and/or the backing part is diffusively reflective optically. The interface part(s) is formed with a plurality of separate protrusions each adapted for making a separate respective contact interface with a surface of a light guide panel of the lighting apparatus to optically couple the backing part to the light guide panel via the interface part(s). The interface part(s) comprises an optically transmissive interface material arranged to form said contact interface such that the interfacial energy thereof is reduced so that air is driven from the contact interface. Consequently, the critical angle for total internal reflection of light guided by the light guide panel is increased at said contact interface.

Abstract: A display device includes a PWM signal generating part configured to set a duty ratio for each period of a pulse width modulation signal, and configured to generate an intermediate gray scale signal including a signal including a first pulse width modulation signal continuous to a second pulse width modulation signal corresponding to two duty ratios closest to each other among M types of duty ratios, based on a signal related to luminance from an input device.

Abstract: An eyepiece for projecting an image to an eye of a viewer includes a first planar waveguide positioned in a first lateral plane, a second planar waveguide positioned in a second lateral plane adjacent the first lateral plane, and a third planar waveguide positioned in a third lateral plane adjacent the second lateral plane. The first planar waveguide includes a first diffractive optical element (DOE) coupled thereto and disposed at a first lateral position. The second planar waveguide includes a second DOE coupled thereto and disposed at a second lateral position. The third planar waveguide includes a third DOE coupled thereto and disposed at the second lateral position. The eyepiece further includes an optical filter positioned between the second planar waveguide and the third planar waveguide at the second lateral position.

Abstract: According to one embodiment, a display device includes a display panel, a light emitting element, a light guide layer and a first optical layer. The display panel includes a first substrate, a second substrate opposed to the first substrate, and a polymer dispersed liquid crystal layer which is held between the first substrate and the second substrate and contains a polymer and a liquid crystal molecule. The light guide layer has a first surface opposed to the display panel, and an edge opposed to the light emitting element. The first optical layer is located between the display panel and the light guide layer. A refractive index of the first optical layer is lower than a refractive index of the light guide layer.

Abstract: Provided is a light extraction member which can be obtained at an adequate cost, while achieving desired light output characteristics without requiring complicated design and structure, and which is easily combined with another member, while exhibiting excellent productivity and excellent handling properties. A light extraction member according to the present embodiment includes: a light guide part which has a first main surface being on the light output side and a second main surface being on the reverse side of the first main surface; and a light output control layer which is a predetermined pattern formed on the first main surface. With respect to this light extraction member, the refractive index n1 of the light guide part and the refractive index n2 of the light output control layer satisfy relational expression n1>n2; and the refractive index n2 of the light output control layer is from 1.01 to 1.30.

Abstract: A light deflection device including a flat, transparent light guide and a microstructure provided at least in regions on the light guide for decoupling light coupled into the light guide. The microstructure has microstructure elements and the microstructure elements in each case have a substantially point-like or line-like geometry for contact with the light guide. Further, a method for manufacturing a light deflection device, an illumination device, and use of a light deflection device or an illumination device are disclosed.

Abstract: The present disclosure is related to a display component. The display component may include a display module and a viewing angle switch module at a light-exiting side of the display module. The display module may include a plurality of columns of light-emitting pixels on a base substrate. Each of the light-emitting pixels may include a first electrode layer, a nanoparticle layer, and a transparent second electrode layer in this order on the base substrate. The nanoparticle layer may include nanoparticles of a first metal, each of the nanoparticles of the first metal having a convex protrusion on a side away from the first electrode layer. The transparent second electrode layer may include a nanoparticle of a second metal.

Abstract: Provided are a double-sided display panel and display device. The double-sided display panel includes a light-emitting module, a first conversion panel and a second conversion panel, where the light-emitting module is placed between the first conversion panel and the second conversion panel, and the light-emitting module may provide light sources for the first conversion panel and the second conversion panel to cause the first conversion panel and/or the second conversion panel to display an image.

Abstract: A display apparatus including a first display surface and a second display surface opposite to each other is provided. The display apparatus includes a reflective display panel and a micro light-emitting diode (LED) panel. The reflective display panel is provided with the first display surface and a visible light transmittance of the reflective display panel is higher than 30%. The micro LED panel is disposed overlapping with the reflective display panel and provided with the second display surface. The micro LED panel includes a drive circuit layer and a plurality of micro LED elements. The drive circuit layer is located between the reflective display panel and the second display surface. The micro LED elements are electrically bonded to the drive circuit layer. A visible light transmittance of the micro LED panel is higher than 50%.

Abstract: A backlight module includes a light guide plate having an upper surface, a lower surface, and light-adjusting structures on the lower surface; an optical sheet disposed opposite to the upper surface of the light guide plate; and a light source disposed adjacent to the light guide plate, wherein a light emitted by the light source has a first brightness distribution in a first direction after passing through the light guide plate, and the first brightness distribution has a first maximum brightness corresponding to a first angle and a second maximum brightness corresponding to a second angle, and an absolute value of the first angle and an absolute value of the second angle are greater than 60 degrees, respectively, wherein an absolute value of a difference between the first maximum brightness and the second maximum brightness is less than or equal to 30% of the first maximum brightness.

Abstract: In view of delamination and other failure mechanisms, bonded assemblies are described herein comprising one or more reinforcement members reducing deflection of the assemblies under applied flexural loads, wherein the reinforcement members do not materially interfere with the functionality of the bonded assemblies. In one aspect, waveguide assemblies are provided. A waveguide assembly, in some embodiments, comprises a waveguide body and light extraction elements bonded to the waveguide body, wherein at least one reinforcement member is coupled to the waveguide assembly at one or more locations to reduce deflection of the waveguide assembly under an applied flexural load.

Abstract: A display according to an embodiment of the disclosure includes a light-emitting device and a display panel unit. The light-emitting device includes a light guide plate, a light source, a reflecting plate, and a dot pattern. The light guide plate has a light-outputting surface including a plurality of band-shaped projections extending in a direction orthogonal to the light-entering end surface. The light source is disposed along the light-entering end surface. The reflecting plate is disposed to face the rear surface of the light guide plate. The dot pattern fixes the light guide plate and the reflecting plate to each other and serves as a light scatterer. The display panel unit includes a display panel, an optical sheet, and a fixing layer. The fixing layer adheres or sticks the display panel and the optical sheet to each other and serves as a light diffuser.

Abstract: Liquid crystal display panel, display device, operating method are provided.

Abstract: A liquid crystal display device comprising, a liquid crystal display panel, a timing controller configured to output a light-source controlling signal during a variable frequency mode comprising a plurality of frames with variable frame frequencies, the light-source controlling signal having a high level during a light-on period preset in an early period of a frame of the plurality of frames and a low level during a light-off period preset to a length according to a frame frequency in a latter period of the frame of the plurality of frames, and a light source configured to emit light during the light-on period and not emit light during the light-off period in response to the light-source controlling signal.

Abstract: A backlight module is provided. The backlight module includes a light guide plate; a plurality of reflective gratings on a first side of the light guide plate; and a plurality of reflectors on a second side of the light guide plate. A respective one of the plurality of reflective gratings is configured to diffract and reflect a portion of light totally reflected in the light guide plate into diffracted light transmitting across the light guide plate from the first side toward the second side. A portion of the diffracted light has a respective wavelength range to be received by a respective reflector. The respective one of the plurality of reflectors is configured to reflect the portion of the diffracted light having the respective wavelength range transmitting from the second side toward the first side to a position between the respective grating and an adjacent reflective grating.

Abstract: A white light emitting device, including a circuit board; a plurality of light sources mounted on the circuit board, each light source of the plurality of light sources configured to emit monochromatic light; a light converter spaced apart from the circuit board, the light converter configured to convert the monochromatic light emitted from the light sources to white light; and a compensator provided between the circuit board and the light converter, the compensator configured to convert the emitted monochromatic light to white light.

Abstract: The present disclosure provides a display device, a driving method, and an electronic apparatus. The display device includes a backlight module including a substrate and a plurality of LEDs disposed on the substrate, and the plurality of LEDs being configured to emit light having at least one color of red, green, and blue; and a display panel, configured to display red light when the plurality of LEDs emits red light, to display green light when the plurality of LEDs emits green light, and to display blue light when the plurality of LEDs emits blue light. The display device does not require a color resist layer, thereby greatly improving the light transmittance of the display device.

Abstract: A light guide structure is disclosed. The light guide structure includes a first waveguide layer having a first light incident surface and a first light exiting surface. The light guide structure includes a polarization beam-splitting structure on the first light exiting surface, configured to split light into first polarized light and second polarized light. The light guide structure includes a first polarization coupling grating disposed on the first light incident surface and configured to deflect the first polarized light, and a second waveguide layer having a second light incident surface and a second light exiting surface and disposed on the polarization beam-splitting structure. The light guide structure includes a second polarization coupling grating disposed between the second light incident surface and the polarization beam-splitting structure and configured to deflect the second polarized light.

Abstract: Provided are an optical member, a display device including the same, and method for fabricating the optical member. The optical sheet includes an adhesive layer; and an optical pattern in contact with a first surface of the adhesive layer; and a release film in contact with a second surface of the adhesive layer, opposite to the first surface, wherein the optical pattern comprises a first pattern extending in a first direction, and a plurality of second patterns formed on the first pattern, wherein the first pattern comprises peak portions having a largest thickness and depressed portions having a smallest thickness, and the adhesive layer comprises a third pattern of recesses respectively aligned with the depressed portions of the first pattern, and a fourth pattern of recesses respectively aligned with the plurality of second patterns.

Abstract: A support part for an LCD display module of an electronic device includes at least one element for receiving a press device for pressing a dummy key. The support part at least one attachment element for securing the part to a printed circuit board of the electronic device such that the press device is compressed between the support part and the printed circuit board.

Abstract: Solid-state lighting devices including light-emitting diodes (LEDs) and more particularly LED packages are disclosed. A light-altering material may be provided in particular configurations within an LED package to redirect light toward a primary emission direction. The light-altering material may be arranged on any of a first face, a second face, or a plurality of sidewalls of an LED chip in the LED package. In certain embodiments, a lumiphoric material may be arranged on one or more of the sidewalls. A superstrate may be arranged to mechanically support the LED chip from the first face. The light-altering material may be arranged on or dispersed within the superstrate. In certain embodiments, the primary emission direction of the LED package is substantially parallel to the second face of the LED chip in the LED package. An overall thickness or height of the LED package may be less than or equal to 0.25 mm.

Abstract: The method of manufacturing a light emitting module includes: providing a light guiding plate having a first main surface serving as a light emitting surface; and a second main surface positioned opposite to the first main surface and provided with a recess; providing a light adjustment portion containing a fluorescent material; providing a light emitting element unit in which a light emitting element comprising an electrode is integrally bonded to the light adjustment portion; bonding the light adjustment portion of the light emitting element unit to the recess; and forming wiring on the electrode of the light emitting element.

Abstract: An illumination device is disclosed including: a plurality of light guide plate units each including a light guide plate and an LED substrate; and a base to which the plurality of light guide plate units are attached so as to be laid over the base. The attachment surface of the base is divided into sections for attaching the light guide plate units so as to lay the light guide plate units over the base and each section is provided with an IC board for driving the corresponding LED substrate and snap-fit engagement portions for fixing the light guide plate unit to the base. A case for covering the back surface of the light guide plate units formed transparently, and the base is also formed transparently.

Abstract: A viewing angle between a wide viewing angle and a narrow viewing angle is switched, and the viewing angle is suppressed from becoming excessively narrow when the viewing angle is switched to the narrow viewing angle. The ultraviolet light guide plate is superimposed on the display panel. A first main surface of the ultraviolet light guide plate is on a side where the pixels are disposed. The film is disposed on the first main surface of the ultraviolet light guide plate. Openings of the film are disposed on an optical path that passes through the pixels and travels in a first direction. Non-opening portions of the film are disposed on an optical path that passes through the pixels and travels in a second direction. The film is made of a photochromic photosensitive material. The ultraviolet light source irradiates an end surface of the ultraviolet light guide plate with ultraviolet light.

Abstract: A light guide structure is disclosed. The light guide structure includes a first waveguide layer having a first light incident surface and a first light exiting surface. The light guide structure includes a polarization beam-splitting structure on the first light exiting surface, configured to split light into first polarized light and second polarized light. The light guide structure includes a first polarization coupling grating disposed on the first light incident surface and configured to deflect the first polarized light, and a second waveguide layer having a second light incident surface and a second light exiting surface and disposed on the polarization beam-splitting structure. The light guide structure includes a second polarization coupling grating disposed between the second light incident surface and the polarization beam-splitting structure and configured to deflect the second polarized light.

Abstract: There are provided a light emitting unit using a wavelength conversion member which may be put to practical use, and a display and a lighting apparatus which include the light emitting unit. The light emitting unit includes: a light source; an optical part including a light incident surface, the light incident surface facing the light source; a wavelength conversion member provided between the light source and the light incident surface; and a holding member holding the wavelength conversion member at a position between the light source and the light incident surface of the optical part.

Abstract: The present disclosure relates to a polarizer and a display device. The polarizer includes a polarization layer, a color filter layer located on the polarization layer, wherein the color filter layer includes a quantum dot. The application of the polarizer provided by the embodiments of the present disclosure to the display device can increase the color gamut, the color purity, and the light utilization, thereby improving the display color quality.

Abstract: A lighting device includes light guide plates each of which includes a light exit section including a light it surface and a light entering section extending from the light exit section toward a light source row and including an extended end surface as a light entering surface. The light exit section has a thickness dimension that is smaller than that of the light entering section at an extended end thereof. The light guide plates are stacked on each other such that the light exit sections thereof overlap each other seen from a normal direction of the light exit surface. The light entering section of one light guide plate and the light entering section of another light guide plate are disposed next to each other in an arrangement direction of the light sources so as not to overlap each other seen from the normal direction of light exit surface.

Abstract: In one aspect, a film-based lightguide includes a film comprising a light emitting region defined by a plurality of light extracting features, a plurality of coupling lightguide strips extending from the lightguide region of the film, wherein the light mixing region of the film is positioned along the film between the plurality of coupling lightguide strips and the light emitting region, the light mixing region comprises a plurality of interior light directing edges positioned between the lateral edges of the body of the film, wherein the interior light directing edges totally internally reflect light propagating in the light mixing region and redistribute light flux propagating within the lightguide region. In one aspect, pairs of the plurality of interior light directing edges define a plurality of channels that totally internally reflect light propagating therein and are tapered outward toward the light emitting region.

Abstract: The present disclosure provides a light guide film assembly for a reflective display panel, the light guide film assembly including a light guide film. The light guide film includes a front light exit surface and a rear light exit surface opposite to each other, and a light incident surface connected between the front light exit surface and the rear light exit surface. A plurality of microstructured strips are disposed on the rear light exit surface, and the plurality of microstructured strips are configured to reflect, in a direction away from the rear light exit surface, light transmitted from the light guide film to the plurality of microstructured strips.

Abstract: An illumination device according to one or more embodiments may include flat light guide plate units each including: a light guide plate, a light source unit, a cover covering a light emission surface of the light guide plate, and a case positioned on a back surface side of the light guide plate; and a base to which the light guide plate units are attached. The attachment surface may be divided into sections for attaching the light guide plate units such that the light guide plate units are laid over the attachment surface. Each of the sections may be provided with a circuit board for driving the light source unit, and a fixing portion for detachably fixing the light guide plate unit to the base. Each of the light guide plate units includes a visible sheet positioned between the light guide plate and the case.

Abstract: A display device includes a light source, a light-directing element, a reflective display element, and a microlens array. The light-directing element is disposed on the transmission path of a lighting beam provided by the light source for projecting the lighting beam toward the first direction. The reflective display element includes a plurality of micro-image units, wherein each micro-image unit converts the lighting beam projected from the light-directing element into an sub-image beam and reflects the sub-image beam. The microlens array is disposed on the transmission path of the sub-image beams, wherein the light-directing element is located between the microlens array and the reflective display element. The microlens array includes a plurality of microlenses. Each sub-image beam pass throughs the light-directing element and is projected to an aperture by the corresponding microlens, and the sub-image beams pass through the aperture to form an image beam.

Abstract: A touch display panel, a fingerprint recognition device and a display device are provided. The touch display panel includes: a waveguide plate (001) and a first substrate (003), a liquid crystal layer (004) and an electrode structure (005) between the waveguide plate (001) and the first substrate (003); a reflective layer (006) at a first side of the first substrate (003) facing toward the liquid crystal layer (004), and photosensitive units (007) at the first side, or at a second side of the waveguide plate (001) facing toward the liquid crystal layer (004), the electrode structure (005) controls a refractive index of the liquid crystal layer (004), to allow light to be emitted out from a first surface (001A) of the waveguide plate (001) closer to the liquid crystal layer (004), or allow light to be totally reflected inside the waveguide plate (001), thereby achieving an optical-type touch recognition.

Abstract: A backlight structure, a manufacturing method thereof, a display device and a mobile terminal are provided. The backlight structure includes a frame and a light shading member, the frame includes a main body, a first bending portion and a second bending portion, the first bending portion protrudes from the main body in a first direction, the second bending portion protrudes from the main body in a second direction, the first direction is opposite to the second direction, the second bending portion is located between two adjacent first bending portions. The frame further includes a hollow portion, the hollow portion is located between the two adjacent first bending portions and further extends to a position where the second bending portion intersects with the main body, and the light shading member is located within the hollow portion.

Abstract: A user terminal device is provided. The user terminal device includes a display, a first sensor provided on a front surface of the user terminal device and configured to detect a front illumination, a second sensor provided on a rear surface of the user terminal device and configured to detect a rear illumination, and a controller configured to adjust a luminance of the display based on the front illumination detected by the first sensor and the rear illumination detected by the second sensor.

Abstract: According to one embodiment, a display device includes a display panel including a first sub display area and a second sub display area, and an illumination device, wherein the illumination device includes a first light source opposed to the first sub display area, a second light source opposed to the second sub display area, and a partition positioned between the first and second light sources and the display panel, and the partition includes a first side surface surrounding the first light source, a second side surface surrounding the second light source, and a connector which connects the first side surface and the second side surface, and the connector is formed of curved surfaces, or two or more flat surfaces, or a combination of curved surfaces and flat surfaces.

Abstract: A multiview backlight and a multiview display employ a multibeam element configured to provide a tilted plurality of directional light beams having different principal angular directions corresponding to view directions of a plurality of view in a view zone. The multiview backlight includes a light guide configured to guide light as guided light and the multibeam element configured to couple out a portion of the guided light as the tilted plurality of directional light beams. A tilt angle of the tilted directional light beam plurality is provided by an offset of the multibeam element and a corresponding multiview pixel. The multiview display includes an array of multibeam elements and an array of multiview pixels.

Abstract: A light emitting device (1) comprising a plurality of volume emitting LEDs (21-29) adapted for, in operation, emitting light, a substrate (3) on which said plurality of volume emitting LEDs is arranged, and an optical structure (4) comprising a surface (41) adapted for forming a light exit surface of the light emitting device, a first section (5) arranged such as to extend over said plurality of volume emitting LEDs opposite to the substrate, and a second section (6) comprising a plurality of light redirecting elements (61-68) adapted for redirecting light emitted by the plurality of volume emitting LEDs towards said surface of the optical structure by means of total internal reflection (TIR), the plurality of light redirecting elements (61-68) extending between adjacent volume emitting LEDs of the plurality of volume emitting LEDs and terminating adjacent to the substrate (3).

Abstract: A display device includes a base substrate, a display panel disposed on a first surface of the base substrate, a low-refractive index layer disposed between the first surface and the display panel, a plurality of light source units disposed under a second surface opposite to the first surface of the base substrate, and a plurality of housings that define accommodation recesses and which respectively accommodate the light source units in the accommodation recesses. The light source units are exposed to the base substrate through the accommodation grooves, and the housings are connected to the second surface.

Abstract: A display device includes a substrate, regions on the substrate each including a transparent first and a second regions, one or more light-emitting elements disposed in the second region, and a circular polarizing pattern disposed in front of the pixel regions. Each of the one or more light-emitting elements includes a reflective electrode and a transparent electrode layered one above the other, and a light-emitting film provided between the transparent electrode and the reflective electrode. The light-emitting film is configured to emit light in response to electric current supplied between the reflective electrode and the transparent electrode. The circular polarizing pattern covers the entire reflective electrode when seen from the front of the display device. At least a part of the first region is located within a gap in the circular polarizing pattern when seen from the front of the display device.

Abstract: Capacitive sensing devices are provided that include a sensing pattern of conductive traces disposed upon the surface of a substrate and a first passive circuit element that includes a metallic conductor disposed upon the same surface of the substrate. In some embodiments, the first passive circuit element is a component of an electronic circuit that can be, for example, a low pass filter. Provided capacitive sensing devices are useful, for example, when incorporated into projected touch screen display panels for use on electronic devices.

Abstract: The present application discloses a repairing method for abnormal pixel spots of a display panel and display apparatus, including steps: installing a polarizing plate between a display panel and a screen of a display apparatus, finding and marking abnormal pixel spots on the polarizing plate, and changing optical polarization structures at the abnormal pixel spots by using specific light rays.

Abstract: Techniques are disclosed to enable an energy-collecting touchscreen unit having a thin, substantially transparent cover layer through which a viewing area within the touchscreen unit can be observed while protecting the touchscreen unit from physical damage. The touchscreen unit has a common base layer disposed beneath the cover layer, and it has at least one touch sensor and a photovoltaic surface. The touch sensor and the photovoltaic surface are affixed to opposite faces of the common base layer. The touchscreen unit also includes an electrical interconnection with both the photovoltaic surface and the touch sensor.