Abstract: An electrowetting element comprises a first fluid and a second fluid. A support plate surface has a first surface portion lying in a first plane, and a second surface portion lying in a second plane different from the first plane. The second surface portion comprises a first side, a second side, and a third side extending from the first side to the second side. The third side is located between the first surface portion and the second surface portion, with a first part of the third side non-perpendicular to the first side. A wall corresponds with a perimeter of the surface, the wall comprising: a first wall portion extending along the first side; and a second wall portion extending along the second side.

Abstract: A reflector assembly includes a monolithic and adaptive reflector having a single and continuous reflecting surface and a focusing shape. The reflector assembly further includes a plurality of trusses for supporting the monolithic and adaptive reflector and a plurality of actuators, each of the plurality of actuators operatively connected to one of the plurality of trusses. Actuation of each of the plurality of actuators exerts a force which flexes at least a portion of the continuous reflecting surface.

Abstract: A control device for controlling a switching converter includes a switch controller that generates a control signal with a switching period for controlling switching of a switch of the switching converter and setting a first interval in which a current flows in the switch, a second interval in which energy is transferred onto a storage element of the switching converter, and a third, wait, interval, at the end of the second interval. The duration of the first interval is determined based on a control voltage indicating the output voltage. A pre-distortion stage receives the control voltage and generates a pre-distorted control voltage as a function of the control voltage and a relationship between one of the first and third time intervals and the switching period, wherein the switch controller is configured to control a duration of the first interval based on the pre-distorted control voltage.

Abstract: A micromechanical device and a method for the two-dimensional deflection of light. The device includes a mirror unit having a mirror surface for deflecting light striking the mirror surface; the mirror unit being rotatably situated about a first axis within a first frame unit and being fastened to the first frame unit; the first frame unit being rotatably situated about a second axis within an actuator structure and being fastened to the actuator structure; the actuator structure including at least four piezoelectric actuator units; and the positions of the at least four piezoelectric actuator units being situated symmetrically with respect to the first axis and also with respect to the second axis.

Abstract: A machine learning device acquires decision data including an adjustment time of a position and an orientation of an optical part and a state of light measured by a light measurement device. The machine learning device includes a learning unit that learns a procedure for adjusting the position and the orientation of the optical part. The learning unit includes a reward calculation unit that calculates a reward based on the alignment adjustment time and the state of light, and a value function updating unit that updates a value function based on the reward. The learning unit includes a decision unit that sets a movement method of the optical part based on the value function.

Abstract: A display device including: a plastic window including a light transmittance film and a polymer layer, and a functional film including a touch screen panel film, a polarizing film, or a combination thereof. The light transmittance film, the polymer layer, and the functional film are sequentially stacked on each other, and the light transmittance film, the functional film, and the polymer layer are attached to each other by a plastic. A method of manufacturing the same is also provided.

Abstract: Devices, systems and techniques are provided for adaptive transformation of wavefronts of optical waves or other electromagnetic waves to either correct the undesirable aberration or provide desirable wavefronts or aberrations for various applications, including imaging, sensing, signaling and other applications.

Abstract: The invention concerns an optical system (10) comprising: a spatial light modulator (13) comprising an array of controllable elements adapted for generating a modulated light beam (17) by diffracting an incident light beam (12), the modulated light beam (17) comprising a modulated part and an unmodulated “zero order” part, the modulated part carrying an image to be projected into a replay volume (18), a control unit for applying a control signal to the controllable elements so as to control the modulated light beam (17) generated by the controllable elements, a perturbing optical element (30) for introducing optical aberrations in the incident light beam (12) and/or the modulated light beam (17) so as to spread the unmodulated “zero order” part of the modulated light beam in the replay volume (18), the perturbing optical element (30) generating distortions in the image to be projected, wherein the control signal comprises an image signal component carrying data representative of the image to be projected a

Abstract: A near-to-eye display device includes a spatial light modulator and a microdisplay. The spatial light modulator provides a high-resolution focused image for central vision. The microdisplay provides a low-resolution defocused image for peripheral vision. The display has a large field of view.

Abstract: A method of operation in a near-eye display system includes determining, using an eye tracking component of the near-eye display system, a pose of a user's eye. A shift vector is determined for a magnifier lens of the near-eye display system based on the pose of the user's eye, and the shift vector is communicated to an actuator of the near-eye display system to instruct translation of the magnifier lens relative to the user's eye. After translation of the magnifier lens, an array of elemental images is rendered at a position within a near-eye lightfield frame and communicated for display at a display panel of the near-eye display system.

Abstract: An image generation device having: a spatial light modulator; a source of light; a beam deflector; an illumination waveguide and an image transport waveguide, each waveguide containing at least one switchable grating; and a coupler for directing scanned light into a first set of TIR paths in said illumination waveguide. A switchable grating in the illumination waveguide diffracts light onto the SLM, a switchable grating in the image transport waveguide diffracting image-modulated from the SLM into a waveguide path.

Abstract: A head mounted display including: an enclosure accommodating a presentation section adapted to present a three-dimensional image and located in front of the eyes of a viewer when worn on the head of the viewer; and an imaging element provided in the enclosure and adapted to turn light external to the enclosure into an image, in which the imaging element images light that is vertically downward relative to the enclosure and forward in the direction of line of sight of the viewer when the enclosure is worn on the head of the viewer.

Abstract: A near eye optical display system comprising a waveguide and diffractive optical elements (DOEs) for in-coupling, exit pupil expansion, and out-coupling reduces the transmission of stray light in the system using a doubly-periodic surface relief microstructure that combines a guided-mode resonant filter with Bragg reflectance. Such resonant grating filter may be configured with grooves and/or ridges of different widths that are located on the waveguide that have respective sub-periods that match Bragg reflectance periods for particular wavelengths. The interaction of the sub-periods gives rise to a photonic band gap effect in which the resonant grating's effective refractive index is modulated to increase angular sensitivity and wavelength bandwidth of the resonant grating filter. The sub-periods define an overall period (i.e., a super period) for the resonant grating filter by which incident light is coupled into the waveguide, guided, and then coupled out of the waveguide at the side of incidence.

Abstract: A light guide includes a light-guide member including an incidence portion through which image light emitted from an image display element enters the light-guide member; an exit portion through which the image light exits the light-guide member to an outside of the light-guide member; a retroreflection portion to reverse a direction of travel of the image light guided through the light-guide member; and an extraction portion to guide the image light reversed by the retroreflection portion to the exit portion. The retroreflection portion has a plurality of surfaces.

Abstract: The present disclosure provides a near-eye display system for generating a virtual image of a display, including: a display, a first lens array comprising a plurality of concave microlenses having a first pitch, and a second lens array positioned in front of the first lens array, the second lens array comprising a plurality of convex microlenses having a second pitch, wherein the first lens array is positioned on an optical path between the display and the second lens array, and wherein the first lens array has a focal plane at the display and the second lens array has a focal plane at a virtual image plane of the first lens array.

Abstract: A semiconductor laser module comprises a tapered laser diode and/or a tapered amplifier diode equipped with beam shaping optics. The tapered laser diode and/or the tapered amplifier diode includes an emission facet for emitting a laser beam along a beam axis. The beam-shaping optics comprise a plano-convex cylindrical lens oriented so as to change divergence of the beam in the fast axis direction, the plano-convex spherical cylindrical lens having a planar surface arranged facing the facet and a circular cylindrical surface facing away from the facet. The refractive index of lens may be uniform throughout the entire lens. Alternatively, the lens may have a refractive index varying in the direction of the slow axis and/or in the direction of the fast axis.

Abstract: In a retinal scanning display device, a scanning section scans a light beam emitted from a light source to form a scanned image. The light beam emitted from the scanning section is expanded in beam width of the light beam in a first direction by a first beam width expander. The first beam width expander includes alternately stacked first partially reflective layers and first light-transmissive layers disposed between a pair of first reflection faces that face each other in the first direction. The plural partially reflective layers include a partially reflective layer having a transmittance exceeding 50%. This enables the light intensity distribution to be appropriately adjusted in the first direction for a light beam expanded in the first direction.

Abstract: Systems and methods for filtering an optical beam are described. In one implementation, a system for filtering an input optical beam includes a first beamsplitter, a first spectral slicing module, a second spectral slicing module, and a second beamsplitter. The first beamsplitter is configured to split the input optical beam into a first optical beam and a second optical beam. The first spectral slicing module has a first passband and is configured to filter the first optical beam. The second spectral slicing module has a second passband and is configured to filter the second optical beam. The second beamsplitter is configured to combine the first optical beam and the second optical beam into an output optical beam. The first and second spectral slicing modules may each comprise a longpass filter and a shortpass filter aligned along its optical axis, and the longpass filter and/or the shortpass filter are rotatable relative to the optical axis.

Abstract: In various embodiments, a wavelength beam combining laser system includes a fast-axis collimation lens that is rotated with respect to a plurality of emitters in order to converge the emitted beams onto a dispersive element and/or reduce the size of the multi-wavelength output beam of the system.

Abstract: The present disclosure discloses a laser pulse delay system and a laser annealing system. The laser pulse delay system comprises: a beam splitter, a first reflective unit and a delay unit. The beam splitter is configured to split a laser beam emitted by a laser into a first beam and a second beam, such that the first beam is transmitted to the first reflective unit and the second beam is transmitted to the delay unit. The first reflective unit is configured to reflect the first beam it receives, such that the reflected first beam is transmitted to a component to be irradiated. The delay unit is configured to delay the second beam it receives, such that the delayed second beam is transmitted to the component to be irradiated.

Abstract: Embodiments of the present disclosure disclose a three-dimensional display device and a driving method thereof. In a previous frame of display time, one part of second sub-pixels in a liquid crystal display panel are controlled to display a left eye view, and the other part of second sub-pixels display a right eye view. In a next frame of display time, positions of light emitting areas and black areas in an electroluminescent display panel are interchanged, and the second sub-pixels that display the left eye view in the previous frame display the right eye view in the next frame, and the second sub-pixels that display the right eye view in the previous frame display the left eye view in the next frame. The sum of the previous frame and the next frame of display time is less than a predetermined maximum time.

Abstract: Obtained is a configuration of a stereoscopic display device wherein luminance variation and increase of crosstalk can be reduced over a period before and after the switching of the parallax barrier. The stereoscopic display device includes: a display panel for displaying an image with a plurality of pixels; a switch liquid crystal panel that is arranged so as to be stacked on the display panel; a position sensor for acquiring position information of a viewer; and a control unit for moving a parallax barrier in which transmitting regions and non-transmitting regions are formed in periodic fashion in a predetermined alignment direction, in such a manner that the parallax barrier is moved in the predetermined alignment direction in accordance with the position information, with use of a predetermined barrier switching pitch as a minimum unit, and causing the switch liquid crystal panel to display the parallax barrier.

Abstract: The embodiments of the present invention provide a stereoscopic display device and a method for manufacturing the same, relating to the technical field of display; the stereoscopic display device and the method for manufacturing the same can reduce Moire fringe phenomenon during displaying of a naked eye 3D display device. The stereoscopic display device comprises a display panel and a grating, wherein the display panel comprises a plurality of first display units and a plurality of second display units, the plurality of first display units and the plurality of second display units are arranged alternately in a Y direction of the display panel; the grating comprises a plurality of optical structures arranged parallel to each other; a preset angle ? is arranged between the optical structure and an X direction of the display panel, thereby reducing Moire fringe phenomenon during displaying.

Abstract: A 3D conversion lens and a control method thereof are disclosed. The 3D conversion lens has a first substrate and a second substrate, the first substrate and the second substrate forming a box; electronic ink, the electronic ink filling in the box cavity of the box, and the electronic ink has opaque charged particles, the opaque charged particles have opaque pigment; an electrode formed on the first substrate; and an electrode formed on at least one side wall of the box cavity. With the conventional liquid crystal layer replaced by electronic ink, 3D display effect of the glasses is realized by controlling positive and negative polarity of the transparent electrodes on the substrate and the side wall of the box cavity. In this way, it is unnecessary to control and realize deflection of the liquid crystals, which simplifies the circuit structure and the preparation process of the 3D glasses.

Abstract: A retroreflecting display that enables the formation of a real image in free space includes a first light source that generates a first light output; a first beam splitter module; and a retroreflector module opposite the first light source.

Abstract: Disclosed is an apparatus and a method to preserve linearly polarized laser beam when it passes through a freely twisting beam delivery system such as an articulated arm. The polarization of the output beam from the delivery system will be stable and the same as the polarization of the input beam to the delivery system, and can be used to pump anisotropic laser crystals as well as nonlinear optical crystals.

Abstract: Disclosed are an apparatus and method for providing additional degrees of freedom for diffraction gratings of an output waveguide in a near-eye display device. The near-eye display device includes an imager to generate an image based on light from a light source. The device further includes a waveguide to input a light wave representing the image received from the imager and to output the light wave representing the image toward an optical receptor of a user. The waveguide includes a plurality of diffractive optical elements (DOEs) in a common light path from an input of the waveguide to an output of the waveguide. The DOEs include a plurality of periodic diffraction patterns. Each of the periodic diffraction patterns is represented by a diffraction pattern vector. The periodic diffraction patterns are determined such that a vector summation of the diffraction pattern vectors equals zero.

Abstract: A spatial filter is made by forming a structure comprising a focusing element and an opaque surface, the opaque surface being disposed remotely from the focusing element in substantially the same plane as a focal plane of the focusing element; and by forming a pinhole in the opaque surface at or adjacent to a focal point of the focusing element by transmitting a substantially collimated laser beam through the focusing element so that a point optimally corresponding to the focal point is identified on the opaque surface and imperfection of the focusing element, if any, is reflected on the shape and position of the pinhole so formed.

Abstract: An actuator and a camera module including the same are provided. The actuator driving apparatus includes a detector configured to apply a reference signal to a driving coil of an actuator and detect a coil current flowing in the driving coil, a calculator configured to determine a position of a lens carrier based on the coil current, and a driver configured to drive the actuator based on the position of the lens carrier and a position control signal.

Abstract: An image stabilization apparatus includes a first optical element configured to move in a direction different from an optical axis, a first driver including a first magnet magnetized in a first magnetized direction and a first coil and configured to drive the first optical element by an electromagnetic action, a second optical element configured to move in a direction different from the optical axis, and a second driver including a second magnet magnetized in a second magnetized direction and a second coil and configured to drive the second optical element by an electromagnetic action. The first magnet is disposed outside a second area onto which the second magnet is projected in the second magnetized direction and the second magnet is disposed outside a first area onto which the first magnet is projected in the first magnetized direction.

Abstract: One or more peripheral optical elements direct light emanating from a central field portion of a visual field (via one or more central optical elements of a visual sensor) onto a peripheral sensor portion of the visual sensor. The peripheral optical element(s) map an image of the central field portion onto the peripheral sensor portion for detection by the visual sensor. The central optical element(s) define the central field portion and form (from light emanating from the central field portion and directly incident on the central optical element(s)) an image of the central field portion on a corresponding central sensor portion of the visual sensor distinct from the peripheral sensor portion.

Abstract: An eyewear system according to the present disclosure may include at least one temple, and a temple guide provided on the at least one temple, wherein the temple guide comprises a guide surface defined by a ferromagnetic material of the temple, and wherein the temple guide is configured to magnetically retain an electronic wearable device in slidable attachment therewith and to restrict lateral movement of the electronic wearable device relative to the temple when the electronic wearable device is engaged with the temple guide.

Abstract: A phase controller for controlling the phase of a light signal in a surface waveguide and a method for its fabrication are disclosed. The phase controller controls the phase of the light signal by inducing stress in the waveguide structure, thereby controlling the refractive indices of at least some of its constituent layers. The phase controller includes a phase-control element formed on topographic features of the top cladding of the waveguide, where these features (1) provide a shape to the phase-control element that matches the shape of the mode field of the light signal and (2) give rise to stress-concentration points that focus and direct induced stress into specific regions of the waveguide structure, thereby providing highly efficient phase control. As a result, the phase controller can operate at a lower voltage, lower power, and/or over a shorter interaction length than integrated-optic phase controllers of the prior art.

Abstract: A device with switchable, chiral optical characteristics, has a first chiral arrangement with a first arrangement layer with at least one first nanostructure and a second arrangement layer with at least one second nanostructure. The first nanostructure and the second nanostructure are arranged relative to one another such that the chiral arrangement is chiral. A switching material with switchable dielectric characteristics is arranged between the first arrangement layer and the second arrangement layer.

Abstract: Techniques regard electro-optic modulators are provided. For example, one or embodiments described herein can regard an apparatus that can comprise a first lateral region, a second lateral region, and a central region located on a semiconductor substrate. The first lateral region can be adjacent to a first side of the central region and can have a first conductivity type. The second lateral region can be adjacent to a second side of the central region and can have a second conductivity type. Also, the first side can be opposite to the second side. Further, the central region can comprise a diode junction adjacent to an intrinsic region. The intrinsic region can separate the first lateral region and the second lateral region.

Abstract: A screen having a free-viewing mode and a restricted-viewing mode, comprising a backlight emitting light into an unrestricted angular range in the free-viewing mode, and into a restricted angular range in the restricted-viewing mode. A transmissive imager is in front of the backlight. Light sources are outside the display area of the imager, and a transparent plate-shaped light guide scattering particles distributed therein is in front of the imager. In the free-viewing mode, the light sources are off, so that light from the backlight passing the imager passes the light guide unaffected. In the restricted-viewing mode, the lights are on, so that light radiating into a restricted angular range and passing the imager is superimposed by light that is scattered into the viewing space due to irradiation of light from the light guide. Thereby, the visibility of an image on the imager is reduced outside the restricted angular range.

Abstract: A display device comprises a display panel and a cover plate stacked with the display panel. An antistatic layer is provided on a side of the cover plate facing toward the display panel. The antistatic layer surrounds a display region (AA) of the display device, and the antistatic layer is grounded. The display device can achieve the antistatic protection function without reducing the light transmittance while meeting the requirement of the narrow bezel display device.

Abstract: A mold frame of a liquid crystal display module can include a body for coupling a liquid crystal display panel and a back light unit including a light emitting device (LED) array having a plurality of LED packages thereon; an extension unit extended from an upper surface of the body to cover a light source of the back light unit; and an inclined surface disposed at the extension unit for reflecting light from the light source to control an amount of the light supplied to the liquid crystal display panel.

Abstract: A liquid crystal grating and a manufacturing method and a driving method therefor, and a spliced screen including a liquid crystal grating are disclosed. The liquid crystal grating includes: a first substrate and a second substrate arranged opposite to the first substrate; and liquid crystal molecules filled between the first substrate and the second substrate. The first substrate, the second substrate and the liquid crystal molecules are provided to define at least one grating unit. Each of the grating units includes: a display region; a frame region surrounding the display region; a first frame electrode located on the first substrate and arranged corresponding to the frame region; and a second frame electrode located on the second substrate and arranged corresponding to the frame region.

Abstract: A liquid crystal display device, whereby transparency when no voltage is applied and scattering properties when a voltage is applied, are good, adhesion between a liquid crystal layer and a vertical liquid crystal alignment film is high, and its lifespan is long even in a severe environment. The liquid crystal display device has a liquid crystal layer formed by disposing a liquid crystal composition containing a liquid crystal and a polymerizable compound between a pair of substrates provided with electrodes, and irradiating and curing the composition with ultraviolet rays by an ultraviolet irradiation apparatus, and at least one substrate is provided with a liquid crystal alignment film to vertically align a liquid crystal, wherein the ultraviolet irradiation apparatus is an ultraviolet irradiation apparatus capable of controlling the irradiation light intensity and wavelength of the ultraviolet rays to be irradiated and the surface temperature of the pair of the substrates.

Abstract: An exemplary display device includes: a display panel; a color conversion panel overlapping the display panel; and an optical bonding layer positioned between the display panel and the color conversion panel. The color conversion panel includes: a substrate; a color conversion layer and a transmission layer positioned between the substrate and the display panel; a first capping layer having one side facing the color conversion layer and the transmission layer, and another side facing the display panel; a second capping layer positioned between the first capping layer and the display panel; and an optical layer positioned between the first capping layer and the second capping layer and/or between the second capping layer and the optical bonding layer. A refractive index of the optical layer is lower than at least one of a refractive index of the first capping layer and a refractive index of the second capping layer.

Abstract: A color film substrate comprises: a basal substrate, a plurality of color filters of at least one color formed on the basal substrate, and a black matrix formed on the basal substrate. The black matrix has a plurality of openings one-to-one corresponding to the plurality of color filters of at least one color. In a cross section perpendicular to the basal substrate, an edge of the color filter and an opening edge of the black matrix have an overlapping region. According to the color film substrate, manufacturing method thereof and display device provided by the embodiments of the present disclosure, by applying the technology of halftone mask plate and positive/negative photoresist, the patterns for the plurality of color filters of the at least one color and the pattern of the black matrix can be formed with one filter mask plate.

Abstract: The present disclosure provides a liquid crystal panel and a method for fabricating the same, and a display device. The liquid crystal panel includes a first substrate, a second substrate and a liquid crystal layer, and has a plurality of pixel regions. In each pixel region, a surface of the first substrate close to the liquid crystal layer has a first cambered surface, and a surface of the second substrate close to the liquid crystal layer has a second cambered surface; the first cambered surface and the second cambered surface bend in a direction away from a light emergent surface of the liquid crystal panel, and axes of the first cambered surface and the second cambered surface coincide with each other; and 0° viewing angle point of the pixel region is located on the axes.

Abstract: A lens array substrate includes a substrate with a concave portion provided in a first face thereof, and a lens layer having a substantially flat surface provided to cover the first face and fill the concave portion. The lens layer includes a first layer and a second layer which are sequentially laminated from a substrate side by reflecting the shape of the concave portion therein. A refractive index of the first layer is different from a refractive index of the second layer. The second layer, the first layer, and the second layer are sequentially exposed to the surface of the lens layer in this order in a first direction in a plan view. The second layer, the first layer, the substrate, the first layer, and the second layer are sequentially exposed to the surface of the lens layer in this order in a second direction that intersects the first direction.

Abstract: The present invention is a liquid crystal display device including a first polarizer, a first protective layer, a first substrate, a first optical alignment film, a liquid crystal layer, a second optical alignment film, a second substrate including a signal electrode and an opposite electrode, a second protective layer, a second polarizer in this order, in which the layers satisfy the relationship nx=ny?nz, an in-plane retardation of each of optical alignment films is greater than or equal to 1 nm, given that R1 is a thickness-direction retardation of each of the protective layers and that R2 is the in-plane retardation of each of optical alignment films, the relationship R1?0.047R22?2.1R2+44.3 is satisfied, the liquid crystal layer has a positive dielectric anisotropy, and a transmission axis of the second polarizer is perpendicular to an initial alignment direction of the liquid crystal molecules.

Abstract: The invention relates to a backlighting device (14), particularly for head-up display. Said device includes: at least one light-emitting diode (16), emitting light beams; an optical system (20) for shaping light beams; and a light diffuser (22), receiving the shaped light beams and said diffuser also comprises a heat sink (18) formed of at least two parts including a base plate (50) and at least one strip (52) that is attached onto said base plate. The strip comprises at least one fold (90) for forming at least one cooling fin (80) and at least one area (60) intended for thermal contact with said base plate (50).

Abstract: A display device includes a first substrate, a wavelength conversion layer disposed on the first substrate, an inorganic film disposed on the wavelength conversion layer, a flattening film disposed on the inorganic film, and a first polarizing layer disposed on the flattening film, where a difference between a coefficient of thermal expansion of the flattening film and a coefficient of thermal expansion of the inorganic film is about 50 ppm/K or less.

Abstract: A display panel is provided. The display panel includes a first substrate; a second substrate; a shielding layer including two shielding pattern rows projected onto the second substrate; a first color filter and a spacer, wherein the spacer includes a spacer pattern projected onto the second substrate, and the spacer pattern overlaps one of the two shielding pattern rows. The first color filter includes a first side projected onto the second substrate. The first side includes a first portion located between the two shielding pattern rows and a second portion overlapped one of the two shielding pattern rows. A shortest distance between an extension line of the first portion and a center of the spacer pattern is a first distance, and a shortest distance between the second portion and the center of the spacer pattern is a second distance. The first distance is shorter than the second distance.

Abstract: An array substrate and a display panel are provided. The array substrate includes a first substrate, a plurality of scanning lines and a plurality of data lines disposed on a first side of the first substrate and being intersected to define a plurality of sub-pixels including first, second, third, and fourth sub-pixels arranged alternatingly and repeatedly along a row direction, and a plurality of support structures disposed on the first side of the first substrate. Along a column direction, the plurality of sub-pixels are divided into first sub-pixel columns containing the first and third sub-pixels arranged alternatingly, and second sub-pixel columns containing the second and fourth sub-pixels arranged alternatingly. A projection of a region where the fourth sub-pixel is located on the first substrate covers a projection of a support structure on the first substrate, and the row direction is different from the column direction.

Abstract: An object of the present invention is to realize a display device having a layered wiring structure, that is capable of detecting leakage without fail by using a simple testing circuit. Source bus lines (SL) are wired such that, in the layered region, two source bus lines (SL) adjacent in a vertical direction are a combination of a source bus line (SL) of an odd-numbered column and a source bus line (SL) of an even-numbered column, and two source bus lines (SL) adjacent in a horizontal direction are a combination of a source bus line (SL) of an odd-numbered column and a source bus line (SL) of an even-numbered column. Potentials of different magnitudes are supplied respectively to source bus lines (SL) of odd-numbered columns and source bus lines (SL) of even-numbered columns via testing lines.