Abstract: Disclosed herein is a display device for increasing the transmittance of R, G, and B sub-pixels and reducing a transmittance of W sub-pixel through a pixel asymmetric design. To this end, the display device has a pixel asymmetric structure in which W sub-pixel has a different area from R, G and B sub-pixels. As a result, as the display device has an asymmetric structure in which the areas of W, R, G, and B sub-pixels are different from one another, particularly, an asymmetric structure in which the area of W sub-pixel is reduced and the area of R sub-pixel is increased. Such design has a structural advantage that the transmittance of R, G, and B sub-pixels can be increased and the transmittance of W sub-pixel can be lowered so that it is possible to correspond the product specifications in various ways.

Abstract: Provided is a liquid crystal display device having a viewing-side polarizing plate, a liquid crystal panel and a light source-side polarizing plate, which are stacked sequentially, wherein the viewing-side polarizing plate comprises a first polarizer and a first protective film formed on a light output surface of the first polarizer, the light source-side polarizing plate comprises a second polarizer and a fourth protective film formed on a light incident surface of the second polarizer, and the TD shrinkage ratio of the fourth protective film is greater than the TD shrinkage ratio of the first protective film.

Abstract: A direct backlight module is disclosed, and includes: a substrate having a driving circuit layer; multiple blue LED chips disposed on the substrate, and the multiple blue LED chips are electrically connected to the driving circuit layer; an optical conversion layer covered on the multiple blue LED chips, wherein the optical conversion layer includes a colloidal material, multiple phosphor particles and multiple haze particles disposed in the colloidal material, the optical conversion layer converts a blue light emitted from the multiple blue LED chips into a white light; and a transparent dielectric layer and a metal grating layer sequentially formed on the optical conversion layer. A liquid crystal display device is also disclosed. The direct backlight module can reduce the thickness of the liquid crystal device, which is beneficial to realize a thin and narrow-frame liquid crystal display device.

Abstract: A system and method for the selective illumination of a display backlight, the system including a plurality of light sources configured in an array, a plurality of switches electrically connected to the plurality of light sources, and at least one substrate configured to receive the plurality of light sources and the plurality of switches, wherein the plurality of switches are configured to operate at least a portion of the plurality of light sources based upon a control signal, and wherein the at least one substrate includes a power supply connection.

Abstract: An image forming apparatus includes a status display part. The status display part is provided on a rear side of a touch panel display within the range including the lateral width of an operation unit. The status display part includes LEDs as a light source and a light emitter that transmits light from the LEDs to emit the light to the outside. A filter includes a first surface and a second surface that have different angles in an up-down direction.

Abstract: A backlight for a display device and a display device including the backlight are disclosed. The backlight includes a light guide plate; a light emitting diode substrate; a frame member; and a plurality of adhesive materials spaced apart from each other. The light emitting diode substrate includes a substrate; and a plurality of light emitting diodes fixed to the substrate. The plurality of light emitting diodes are oriented to face a side surface of the light guide plate. A frame member is disposed facing a surface of the substrate that is opposite the plurality of light emitting diodes. In a side sectional view, the plurality of adhesive materials is spaced apart from each other along a length direction of the frame member. The length direction corresponds to a major dimension of the frame member.

Abstract: A display device is disclosed. The display device includes a display panel, a frame positioned in the rear of the display panel, a substrate positioned between the frame and the display panel, extended in an up-down direction of the frame, and mounted on the frame, a light source mounted on the substrate, and a lens covering the light source and mounted on the substrate. The lens includes a first stopper protruding and extending from a lower surface of the lens, and a first leg extended from the first stopper toward a lower part of the lens. The substrate includes a hole into which the first leg is inserted.

Abstract: A display apparatus includes a display panel, LEDs disposed behind the display panel and spaced from the display panel to emit light toward the display panel, a bottom chassis having a rear portion on which the LEDs are disposed, and a reflective member disposed inside the bottom chassis and configured to reflect light incident from the LEDs toward the display panel. The reflective member includes a reflective inclined portion obliquely formed to face a rear surface of side portions of the display panel, first regions that respectively correspond to LEDs located adjacent the reflective inclined portion, and second regions provided between two neighboring first regions respectively and having a reflective characteristic different from a reflective characteristic of at least one among the two neighboring first regions.

Abstract: A display device includes a backlight unit and a display panel disposed above the backlight unit, where the backlight unit includes a light guide plate, a housing which is disposed at one side of the light guide plate and accommodates a wavelength converting member, and a flexible glass film which covers one side of the housing, and a first laser welding part is disposed between the flexible glass film and the housing.

Abstract: The switching mirror panel of the present invention includes, in the following order: a reflective polarizing plate; a liquid crystal panel including a pair of substrates facing each other and a liquid crystal layer disposed between the substrates; and an absorptive polarizing plate, at least one of the substrates including divided pixel regions, the pixel regions each including, in the following order from the liquid crystal layer side, a pixel electrode, a transparent insulating film, and transparent conductive lines superimposed on the pixel electrode, the pixel electrode being electrically connected to at least one of the transparent conductive lines through an aperture formed in the transparent insulating film, the switching mirror panel being configured to switch between a transparent mode and a mirror mode by applying voltage to the pixel electrode to control the alignment of liquid crystal molecules in the liquid crystal layer.

Abstract: A liquid crystal display device is provided. The liquid crystal display device includes a driving circuit; a lower insulation layer; an upper insulation layer; and an inorganic insulation layer. The driving circuit is disposed in a bezel area on a lower substrate. The lower insulation layer includes a lower opening through which an inorganic layer on the lower substrate is exposed and the lower opening is located at an outer side of the lower substrate than the driving circuit. The upper insulation layer is disposed on the lower insulation layer and includes an upper opening corresponding to the lower opening. The inorganic insulation layer is disposed on the upper insulation layer and in direct contact with the inorganic layer on the lower substrate so as to minimize damage to the driving circuit caused by infiltration of moisture from the outside.

Abstract: A curved surface display comprises: a first substrate that is curved such that a portion located at a center in a first direction is convex or concave toward a display surface side compared with portions located at both ends in the first direction; a second substrate that is curved along the first substrate while disposed opposite the first substrate; and a sealing material that bonds the first substrate and the second substrate together. The sealing material includes a first sealing section extending in a second direction and a second sealing section extending in the first direction. A width of the first sealing section is larger than a width of the second sealing section.

Abstract: A column for defining the interval between a TFT substrate and an opposed substrate is formed at a crossing point between a drain line and a scanning line. At the crossing point where the column is formed, the drain line is formed to have a wider width to prevent light leakage. Further, at the crossing point where the column is formed, the scanning line is formed to have a narrower width to prevent increase of capacitance between the drain line and the scanning line. The column is formed at a crossing point corresponding to a specific color, e.g., a blue pixel B, so that a difference in transmittance and in characteristic of thin film transistors due to formation of the column is initially compensated.

Abstract: The application discloses a display panel and a display device. The display panel comprises a substrate comprising an active area and a non-display area surrounding the active area; an alignment film arranged in the active area; a sealant arranged in the non-display area; and at least one row of retaining wall arranged between the alignment film and the sealant, and the retaining wall comprises a plurality of sections of sub-retaining walls which are arranged at intervals to form protrusions and depressions.

Abstract: A method of producing liquid crystal display panels includes a sealing material application step of applying sealing material on a first substrate to define regions, a vacuum assembling step of assembling a second substrate to the first substrate in a vacuum, an atmospheric pressure pressing step of pressing the first substrate and the second substrate under atmospheric pressure, an ultraviolet curing step of irradiating ultraviolet rays to the sealing material, a thermal curing step of heating the sealing material, a cutting step of cutting the assembled first and second substrates into pieces for each of the regions that are defined by the sealing material and forming pairs of substrates each of which including the region surrounded by the sealing material, and a liquid crystal injecting step of injecting liquid crystals. In the sealing material application step, the sealing material that defines the regions is applied in a closed loop form.

Abstract: A method for manufacturing an optical device and an optical device is provided. The manufacturing method is capable of minimizing or eliminating dotting unevenness that may occur when an optical device is manufactured by a dotting process. In particular, even when a large cell gap is present or a polymer substrate is applied as a substrate so that high-temperature heat treatment is impossible, such method of the present application can provide an alignment film having improved orientation by improving the dotting unevenness.

Abstract: In an IPS-mode liquid crystal display device, the area of a terminal portion is decreased. A liquid crystal display device includes a TFT substrate and a counter substrate attached to the TFT substrate with a sealing material, and includes a display region and a terminal portion formed on the TFT substrate. A shielding transparent conductive film is formed on the outer side of the counter substrate. On the terminal portion, an earth pad formed with a transparent conductive film is formed on an organic passivation film. The shielding transparent conductive film is connected to the earth pad through a conductor. Below organic passivation film of the terminal portion, a wire is formed.

Abstract: According to one embodiment, a display device includes a first line extending in a first direction, an insulating layer covering the first line, a second line disposed on the insulating layer and extending in a second direction, and a drive circuit including an output line extending in the first direction and connected to the first line through a contact portion. The contact portion includes a first portion to which the first line is connected at a first position, and a second portion to which the output line is connected at a second position which is apart from the first position in the second direction, the second portion facing the first portion with the insulating layer interposed therebetween while being electrically connected to the first portion.

Abstract: A liquid crystal panel (a display device) 10 includes pixel sections PX, a black matrix (a pixel in-between light blocking section) 10i disposed to define each of the pixel sections PX that are adjacent to each other, TFTs (switching components) 11 connected to the pixel sections PX and configured to drive the pixel sections PX, respectively, and a divisional light, blocking section 22 disposed to divide the pixel section PX into divided pixels PPX.

Abstract: A display device includes: display wires; first wires including first end portions overlapped with first end portions of the plurality of display wires via an insulating film; second wires including first end portions overlapped with second end portions of the display wires via the insulating film; third wires routed from second end portions of the first wires to second end portions of the second wires; a fourth wire overlapping with the second end portions of the first wires and first end portions of the third wires via the insulating film; and a fifth wire overlapping with the second end portions of the second wires and second end portions of the third wire via the insulating film.

Abstract: The present disclosure provides a display substrate and a display device, wherein the positional relationship between the input signal lines and the first internal circuit is changed by disposing the first internal circuit between any two adjacent input signal lines, such that the input signal lines that are all arranged on one side of the first internal circuit before are distributed on two sides of the first internal circuit.

Abstract: A display panel and a display device are provided. The display panel includes: a display region and a non-display region surrounding the display region; multiple gate lines; and multiple data lines. The gate lines include regular gate lines and irregular gate lines. In the display region, the regular gate lines and the irregular gate lines are extended in a first direction, and a length of a part of the regular gate line in the display region is greater than a length of a part of the irregular gate line in the display region. The data lines include regular data lines and irregular data lines, and an extension direction of the regular data lines and the irregular data lines intersects with the first direction.

Abstract: A liquid crystal display device comprises: a plurality of pixels arranged in a first direction and a second direction intersecting the first direction, the plurality of pixels including a first pixel, a second pixel, and a third pixel; a plurality of subpixel electrodes arranged in each of the plurality of pixels in the second direction; a plurality of source lines extending in the first direction and crossing a space between the plurality of subpixel electrodes and a space between the first pixel and the second pixel; a first gate lead line extending in the first direction and crossing a space between the first pixel and the second pixel; and a first gate line extending in the second direction, crossing a space between the first pixel and the third pixel, and is electrically connected to the first gate lead line.

Abstract: A display panel including: a display portion including a plurality of signal lines and a plurality of pixels connected to the signal lines; a peripheral portion provided around the display portion; an integrated circuit (IC) mounting unit provided on the peripheral portion, and including a plurality of driver ICs connected to a data driver; and a test pad portion provided on the peripheral portion and testing the signal lines. The test pad portion includes a gate driver test pad portion including a gate driver test pad unit and a data line test pad unit including a data line test pad unit, the data line test pad unit includes an outermost data line test pad unit provided on respective sides of the data line test pad portion and a plurality of intermediate data line test pad units provided between the outermost data line test pad units.

Abstract: An array board 11b includes a display section AA, a source line 20 connected to the display section AA, a test circuit 40 connected to the source line 20 and configured to test the display section AA, a panel-side image input terminal that is disposed such that the test circuit 40 is between the terminal and the display section AA and to which a signal to be supplied to the source line 20 is input, a terminal connection line 51 connecting the source line 20 to the pane-side image input terminal 35A and the terminal connection line 51 including the terminal connection line 51 at least a part of which overlaps the test circuit 40 and a flattening film (insulation film) 28 at least disposed between an overlapping portion of the test circuit 40 and the terminal connection line 51.

Abstract: A liquid crystal display panel and a terminal device are provided. The liquid crystal display panel includes a backlight module, a lower polarizer, a thin film transistor (TFT) layer, a liquid crystal layer, a color filter, an upper polarizer, an optical adhesive, and a cover glass which are sequentially disposed. A Fresnel lens is disposed at a position corresponding to a first blind hole by one or more of a computerized numerical control (CNC) machining, a glass injection molding, and a casting. The liquid crystal display panel adjusts externally incoming light into parallel light or concentrating light by providing the Fresnel lens on the cover glass. Therefore, issues of low light transmittance in the blind hole provided under the cover glass is improved.

Abstract: A window may be provided with a light modulator. The light modulator may be dynamically adjusted to control visible light transmission through the window. The window may also have layers that selectively block light with non-visible wavelengths. The light-blocking layers may block ultraviolet light, near infrared light such as light from solar radiation, and far infrared light such as heat produced due to the absorption of visible light by the light modulator. The light modulator may be a guest-host liquid crystal light modulator. The guest-host liquid crystal light modulator may have a layer of liquid crystal material with dye that is interposed between polymer substrate layers. The polymer substrate layers may be thermoplastic layers that are moldable to conform to window shapes with compound curves.

Abstract: Multi-layer devices comprising a layer of an electrochromic lithium nickel oxide composition on a first substrate, the lithium nickel oxide composition comprising lithium, nickel and a Group 5 metal selected from niobium, tantalum and a combination thereof.

Abstract: A multilayered structure that includes a light receiving section including at least one layer including a noble metal composition and a metal oxide composition, the light transducing section transducing the energy of photons received to the energy of electrons. The structure further includes a piezo composite amplifier layer comprising a piezo polymer matrix, a first dispersed phase of piezo nanoparticles and a second dispersed phase of carbon nanotubes. The piezo composite amplifier amplifying a signal from the energy of the electrons received from the light receiving section using piezo-electric effects. The nanostructure further includes an environmental interface layer for delivering the amplified signal received from the piezo composite amplifier layer to a biological environment.

Abstract: An IQ optical modulator including: a parent Mach-Zehnder type (MZM) optical waveguide; child MZM optical waveguides constituting two arms of the parent MZM; two electrode transmission lines provided along the two arms of the child MZM, respectively, and receiving modulation signal to phase-modulate an optical signal; an RF extension line connected to the two electrode transmission lines, respectively; a first optical splitter branching light into the two arms of the parent MZM; a second optical splitter branching light into the two arms of the child MZM; and a first optical multiplexer multiplexing light from the two arms of the child MZM, wherein stripe direction of the child MZM optical waveguide is same as the RF extension line, the second optical splitter, and the first optical multiplexer, and is orthogonal to the first optical splitter.

Abstract: In one example embodiment, an optical circuit for optical modulation of light may include an input waveguide including a first thickness, an optical modulator including a second thickness, and a tapered transition that optically couples the optical modulator and the input waveguide. The second thickness may be smaller than the first thickness. The tapered transition may adiabatically transform the optical mode of the input waveguide to the optical modulator.

Abstract: In an embodiment, a phase shifter includes: a light input end; a light output end; a p-type semiconductor material, and an n-type semiconductor material contacting the p-type semiconductor material along a boundary area, wherein the boundary area is greater than a length from the light input end to the light output end multiplied by a core width of the phase shifter.

Abstract: This disclosure teaches a thin film beam steering system comprising either flat or tilted transparent electrodes on one side of the electro-optical crystal layer and a transparent ground electrode on the other side. There is an insulator between each adjacent electrode which can be inserted all the way or partially through the EO crystal layer. A mirror layer can also be attached to the ground electrode. The refractive index of the EO crystal layer is changeable as a function of varying an applied voltage generated by the voltage supply and applied to the EO crystal layer. The disclosure also includes bulk crystal beam steering systems to steer a beam in 2 dimensions and to a wider angle.

Abstract: Liquid crystal light beam broadening devices and their manufacture are described. Beneficial aspects of beam broadening devices employed for controlled illumination and architectural purposes are presented including providing symmetric beam broadening, improving the beam intensity profile, beam divergence preconditioning and improving projected beam intensity uniformity. Both beam control devices having in-plane and homeotropic ground state liquid crystal alignment are presented.

Abstract: An optical logic device includes a distributed feedback laser configured to generate a first signal corresponding to distributed feedback laser output signal, the first signal being at a first wavelength. The device further includes a bandpass filter having a center frequency corresponding to the first wavelength. Additionally, the device can include an optical circulator having a first port coupled to a logic device input signal, a second port coupled to the first signal, and a third port coupled to the bandpass filter, wherein when the logic device input signal has a power above a predetermined threshold and there is a wavelength difference between the first wavelength and an input wavelength of the logic device input signal, a suppression of the first signal occurs.

Abstract: A ghost reducing device and an imaging device provided with it, a ghost reducing method, and an imaging optical system that can effectively reduce ghosts while having a simple and inexpensive configuration. A ghost reducing device includes a douser that has at least one opening that lets light pass through, and that totally blocks light in a symmetrical position of the opening with respect to an optical axis of an imaging optical system. The douser is disposed in the vicinity of a pupil position of the imaging optical system.

Abstract: A camera is configured for use with a removable camera lens cover, which can be secured to or removed from the camera by a user without the use of a tool set. The mechanism which allows the lens cover to be secured to and removed from the camera includes a set of wires embedded into the lens cover and a set of wedges protruding from the lens wall of the camera. To secure the lens cover to the camera, the lens cover is placed onto the front of the camera and rotated until the wires align with corresponding wedges, securing the wires underneath the tapered surface of the wedges. To remove the lens cover from the camera, a force is applied outward and normal to the lens cover, causing the wires to flex outward and enabling the rotation and removal of the lens cover from the camera.

Abstract: An adjustable fish-supporting photographic rack assembly particularly well-suited for temporarily supporting a catch of fish in a highly organized manner during the taking of a photograph or digital image thereof includes a main panel body having a front surface, a rear surface, and a periphery defined by contiguous upper, lower, left and right peripheral edges. A pair of main panel supports includes respective integral depressions sized and shaped to conform to opposite lower corners of the main panel body for snugly receiving and retaining the lower corner portions therein, effectively supporting the main panel in an upright vertical orientation. At least one structural feature integrated into the front surface of the main panel body is configured to correspondingly receive at least one hook-receiving structure for selectively coupling a fish-supporting hook member thereto.

Abstract: A flash system for an electronic device includes a ring-shaped light guide having a central opening. A camera lens is positioned in or behind the opening. A first light emitting diode (“LED”) is mounted on a printed circuit board (“PCB”), and the LED and PCB are encapsulated by a molded light guide of the flash system. An identical LED and PCB are encapsulated at an opposite end of the molded light guide (i.e., 180 degrees away). The back surfaces of each PCB diffusively reflects light from the LED on the other PCB. Light extraction features on the light guide surface uniformly leak out light from the LEDs. The light emission profile of the light guide has a peak axially aligned with the central opening of the light guide and rolls off to the edge of the camera's field of view.

Abstract: An imaging apparatus comprises an imaging device configured to capture an image of an object, a display device configured to display the image captured by the imaging device, a base having a support rod extending in a vertical direction, and a mechanical arm mechanism mounted on the support rod. The mechanical arm mechanism has a plurality of motion degrees of freedom. The display device or the imaging device is connected to an end arm of the mechanical arm mechanism.

Abstract: The present invention relates to a quick connection handle for photographic equipment comprising a mounting base, a locking component provided in the mounting base and a connecting base connected to the mount base; and the locking component is movable in the mounting base, a through hole is provided in the mounting base through which a screw bolt having an external thread passes, the locking component comprises a locking block, a spring abutting against the locking block and a button, the spring and the button urge the locking block towards different directions, a locking chamber is in the locking block communicating with the through hole of the mounting base, and the locking chamber comprises an internal thread section and a non-threaded section locating at opposite sides, and the spring abuts against an end of the locking block adjacent to the internal thread section.

Abstract: A gimbal photographing device includes a body having a supporting wall, a folding mechanism connected to the body, and a gimbal camera connected to the folding mechanism. The gimbal camera fits to the body through the folding mechanism, having an expanded state and a folded state. The supporting wall is configured to support the folding mechanism and the gimbal camera. The rotating portion being connected to the supporting wall rotates around a rotation axis, to drive the gimbal camera to rotate relative to the body. The rotation axis is parallel to the supporting wall. In response to the rotating portion driving the gimbal camera to rotate to the expanded state, the rotating portion abuts against the supporting wall. In response to the rotating portion driving the gimbal camera to rotate to the folded state, the gimbal camera attaches to a side wall of the body adjacent to the supporting wall.

Abstract: A camera apparatus for hiding a camera operator while continually walking/moving and recording 360-degree images or video, the apparatus including a frame having upper and lower arcuate members that define an operator cavity; and a support member positioned within the cavity that includes a means for carrying the apparatus by the camera operator; a front barrier following the arcuate members that substantially prevents viewing into the cavity, the front barrier having an upper segment that extends downward from the upper arcuate member and permits one way viewing out of the operator cavity; and a rod movably mounted to the frame and extending forward through the front barrier that is configured for attachment to a camera that captures 360-degree images or video.

Abstract: Embodiments provide grade annunciator systems that allow a lumber workpiece traveling in a workflow path to be labeled with a projected image that conveys information about the grade, a cut line, and/or the location of a defect in the workpiece. In some embodiments, the system includes a conveyor configured to convey lumber workpieces in a workflow path, and a projector or series of projectors configured to project an image or symbol onto a surface of the workpiece, wherein the image or symbol indicates grade, a cut line, and/or the location of a defect in the workpiece. Other embodiments are methods of labeling a lumber workpiece in a workflow path, the methods includes conveying the lumber workpiece along the workflow path, and projecting an image or symbol onto a surface of the workpiece as it is conveyed along the workflow path.

Abstract: A projection system includes a recessed projection fixture that includes a lighting module configured to emit a light and a projection module configured to project an image. The light emitted by the lighting module is used for projecting the image and for illumination. The projection system further includes a sensor, where the projection module projects the image in response to an occupancy detection by the sensor. The recessed projection fixture is oriented to direct the image toward a surface below the recessed projection fixture.

Abstract: A projector includes a light source device, a plurality of light modulation devices each adapted to modulate a light beam emitted from the light source device, a light combining device adapted to combine the light beams respectively modulated by the light modulation devices, a projection optical device adapted to project the light beam combined by the light combining device, a housing in which the light modulation devices and the light combining device are disposed, the housing having a first cooling liquid encapsulated inside, a stirring device adapted to stir the first cooling liquid inside the housing, and a control device disposed outside the housing and connected to the housing, the control device adapted to control the light modulation devices. The housing has a connection section connecting the control device and a plurality of light modulation device side signal lines respectively extending from the light modulation devices to each other.

Abstract: A light source device has a light source unit including a base member and a plurality of light emitting devices held in the base member, a heat receiving plate including an opening portion, to which the base member is fixed to cover the opening portion, and a heat diffusion member in contact with the base member via the opening portion. Heat from the light source unit is transmitted to the heat receiving plate and the heat diffusion member.

Abstract: A phosphor wheel (13) includes: a first surface having a disk shape; a second surface opposite the first surface; a phosphor layer (13b) having an annular shape and being provided on the first surface; a plurality of openings (13c); and a plurality of first blade parts (33a). The plurality of openings (13c) are disposed radially inward of the annular-shaped phosphor layer (13b) and arrayed along a circumferential direction. The plurality of first blade parts (33a) are located respectively adjacent to the plurality of openings (13c) in the first surface and configured to blow air to a surface of the phosphor layer (13b).

Abstract: An optical engine module and a projector having the same are provided. The optical engine module includes an optical engine housing having a sound outlet, a light modulation unit disposed in the optical engine housing, and a heat dissipation tube disposed on the optical engine housing at an outer side of the optical engine housing and configured to dissipate heat from the optical engine housing. The heat dissipation tube communicates with the sound outlet. Noise is generated when the light modulation unit is operated. The noise travels from the sound outlet into the heat dissipation tube and is reflected back through the heat dissipation tube to the sound outlet to form a reflected sound wave, and the heat dissipation tube has a length enabling the reflected sound wave and the noise to have a phase difference of 180 degrees.

Abstract: Movement of a movable portion without stopping at any moment can be achieved by a simple configuration including a beam structural portion including two beam portions extending in directions different from each other and one driving portion. Furthermore, a size reduction of a device is achieved in comparison with a case where a device includes a motor disposed for rotation driving.