Abstract: Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on a winding axis to define a core and an outer circumference. The first electrode includes a first active material portion coated with an active material layer and a first uncoated portion not coated with an active material layer along a winding direction. At least a part of the first uncoated portion is defined as an electrode tab by itself. The first uncoated portion includes a first portion adjacent to the core of the electrode assembly, a second portion adjacent to the outer circumference of the electrode assembly, and a third portion interposed between the first portion and the second portion. The first portion or the second portion has a smaller height than the third portion in the winding axis direction.

Abstract: Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on an axis to define a core and an outer circumference. The first electrode includes an uncoated portion at a long side end thereof and exposed out of the separator along a winding axis direction of the electrode assembly. A part of the uncoated portion is bent in a radial direction of the electrode assembly to form a bending surface region that includes overlapping layers of the uncoated portion, and in a partial region of the bending surface region, the number of stacked layers of the uncoated portion is 10 or more in the winding axis direction of the electrode assembly.

Abstract: A method and a system thereof for producing a digital holographic screen based on multi-hogel printing are proposed. The system includes a light source unit including lasers, a dichroic mirror for RGB three color matching, mirrors, a beam splitter, and an optical shutter, an object beam unit including a spatial filter, a lens, and a mirror, a reference beam unit including a spatial filter, a lens, and a mirror, a diffuser fixing unit including a diffuser holder and a diffuser positioned between the object beam unit and a recording material and configured to scatter and diffuse the object beam, a photomask movement unit including a photomask holder, an XY-translation stage, and a photomask positioned between the reference beam unit and the recording medium and on which a grid-shaped on/off binary pattern is printed, and a controller configured to control the optical shutter and the XY-translation stage.

Abstract: The present invention discloses a back contact solar cell. The back contact solar cell includes a semiconductor substrate having a front surface and a rear surface; a first conductive type semiconductor region having a first conductive type and a second conductive type semiconductor region having a second conductive type at an interval on the rear surface of the semiconductor substrate. Furthermore, the rear surface of the semiconductor substrate has a texturing structure at the interval between the first conductive type semiconductor region and the second conductive type semiconductor region.

Abstract: A light device including a substrate, and first and second light emitters spaced apart from each other, and a power source to control the first light emitter and the second light emitter, in which the first and second light emitters include a light emitting region, a wavelength conversion layer disposed on the light emitting region, and a lateral reflection layer covering a region of a side of the light emitting region and the wavelength conversion layer, the first light emitter and the second light emitter are configured to output the same or different magnitudes of power by receiving the same or different magnitudes of current, the first and second light emitters are respectively configured to emit first light and second light, the first light emitter is electrically connected to the second light emitter through a common electrode.

Abstract: An image forming apparatus using a thermal printing head (TPH) and a printing method thereof to print a borderless image on both sides of a printing medium. The image forming apparatus includes first and second feeding units respectively disposed at front and rear sides of the TPH to transfer the printing medium at a predetermined printing speed and a pair of out-feed rollers that co-rotates and feeds out the printing medium, in which one of the out-feed rollers rotates in contact with the pick-up roller. A platen roller co-rotates in contact with the printing medium fed by the first and second feeding units The TPH has a printing position in which the TPH is pressed towards the platen roller to form a printing nip, and an open position in which the TPH is separated from the platen roller. The knock-up plate has a pick-up position where the printing medium comes in contact with the pick-up roller and a stand-by position where the printing medium loaded thereon is separated from the pick-up roller.

Abstract: A complex image forming apparatus is provided having an improved structure in which a thermal printing engine forming a color image by heat and a laser printing engine performing single-color printing are integrated. The complex image forming apparatus comprises a supplying unit supplying a printing medium; a transfer path via which the printing medium supplied by the supplying unit is transferred; a thermal printing engine being disposed on the transfer path and performing color printing by heating a thermal imaging printing medium having one or more image forming layers; and a laser printing engine being disposed on the transfer path on which the thermal printing engine is installed and performing printing on the supplied printing medium by electrophotolithography.

Abstract: A printing medium and a printing method thereof, for a photo printer using the printing medium, wherein the printing medium includes a printing region, and a first tab region and a second tab region extending from both tabs of the printing region in a lengthwise direction and having different lengths from each other, and having a direction display unit formed in a penetrated manner in any one of the first tab region and the second tab region and displaying an inserting direction. The printing medium can also include an ID display unit including a plurality of slits formed in any one of the first tab region and the second tab region in order to display information regarding the printing medium.

Abstract: A thermal image forming apparatus is provided. A platen roller supports a recording medium having first and second sides opposite to each other. A recording head includes a heating part that applies heat to the recording medium for image formation. The recording head rotates around the platen roller to move the heating part to first and second locations respectively facing the first and second sides of the recording medium. A conveying part conveys the recording medium. When the recording head is positioned at the first and second locations, locations of the heating part are symmetrical with each other with respect to a reference line, which passes through the conveying part and a center of the platen roller.

Abstract: Disclosed are multilayered liposomes for transdermal absorption and a method of preparing the liposomes. The multilayered liposomes are prepared using a mixture of oil-phase components comprising squalane, sterols, ceramides, neutral lipids or oils, fatty acids and lecithins, is 200 to 5000 nm in particle size, and is capable of entrapping a physiologically active substance. The multilayered liposomes entrap a larger amount of a physiologically active substance and are structurally stable when encapsulating the physiologically active substance, compared to unilamellar liposomes. Also, they are prepared by a simple and cost-effective process not using a high-pressure homogenizer but using a general homo mixer.

Abstract: A thermal image forming apparatus is provided adapted to form images on both sides of a recording medium. The thermal image forming apparatus includes an image forming part having a recording head for forming an image on the recording medium and a support member facing the recording head and supporting the recording medium with respect to the recording head. The recording medium has a first side and a second side opposite to the first side. A position changing unit rotates the recording head around a shaft of the support member to move the recording head to first and second locations respectively facing the first and second sides of the recording medium.

Abstract: An image forming apparatus using a thermal printing head (TPH) and a printing method thereof to print a borderless image on both sides of a printing medium. The image forming apparatus includes first and second feeding units respectively disposed at front and rear sides of the TPH to transfer the printing medium at a predetermined printing speed and a pair of out-feed rollers that co-rotates and feeds out the printing medium, in which one of the out-feed rollers rotates in contact with the pick-up roller. A platen roller co-rotates in contact with the printing medium fed by the first and second feeding units The TPH has a printing position in which the TPH is pressed towards the platen roller to form a printing nip, and an open position in which the TPH is separated from the platen roller. The knock-up plate has a pick-up position where the printing medium comes in contact with the pick-up roller and a stand-by position where the printing medium loaded thereon is separated from the pick-up roller.

Abstract: Provided is an image forming apparatus capable of improving printing speed and image quality. The image forming apparatus includes a print head having a plurality of heaters for heating a printing medium and a driving chip unit for selectively driving the heaters according to printing data. Also included is a feeding unit that transfers the printing medium to the print head. The driving chip unit has a first preheating part for preheating the printing medium before the printing medium is directly heated by the heaters.

Abstract: A paper edge sensing apparatus for borderless printing comprises a first paper sensor mounted in connection with the carrier and the frame in the upstream of a paper convey direction of an ink jet position of the ink jet nozzles to detect sheet edges, and a controller controlling operations of the ink jet nozzles of the printer head according to a signal from the first paper sensor to control paper print margins.

Abstract: A thermal image forming apparatus is provided. A platen roller supports a recording medium having first and second sides opposite to each other. A recording head includes a heating part that applies heat to the recording medium for image formation. The recording head rotates around the platen roller to move the heating part to first and second locations respectively facing the first and second sides of the recording medium. A conveying part conveys the recording medium. When the recording head is positioned at the first and second locations, locations of the heating part are symmetrical with each other with respect to a reference line, which passes through the conveying part and a center of the platen roller.

Abstract: A printing medium and a printing method thereof, for a photo printer using the printing medium, wherein the printing medium includes a printing region, and a first tab region and a second tab region extending from both tabs of the printing region in a lengthwise direction and having different lengths from each other, and having a direction display unit formed in a penetrated manner in any one of the first tab region and the second tab region and displaying an inserting direction. The printing medium can also include an ID display unit including a plurality of slits formed in any one of the first tab region and the second tab region in order to display information regarding the printing medium.

Abstract: A thermal image forming apparatus and method of printing a color image by heating a medium having ink layers that react with heat to represent different colors with a single thermal printhead (TPH), includes transferring the medium in a first direction, heating a first surface of the medium using the TPH to represent an image of one or more ink layers, moving a holding unit to an inlet of the TPH in a state where a terminal portion of the medium is engaged with the holding unit installed at an outlet of the TPH to dispose a second surface of the medium to face the TPH, and heating the second surface of the medium to represent an image of the remaining one or more ink layers.

Abstract: A thermal image forming apparatus is provided adapted to form images on both sides of a recording medium. The thermal image forming apparatus includes an image forming part having a recording head for forming an image on the recording medium and a support member facing the recording head and supporting the recording medium with respect to the recording head. The recording medium has a first side and a second side opposite to the first side. A position changing unit rotates the recording head around a shaft of the support member to move the recording head to first and second locations respectively facing the first and second sides of the recording medium.

Abstract: A complex image forming apparatus is provided having an improved structure in which a thermal printing engine forming a color image by heat and a laser printing engine performing single-color printing are integrated. The complex image forming apparatus comprises a supplying unit supplying a printing medium; a transfer path via which the printing medium supplied by the supplying unit is transferred; a thermal printing engine being disposed on the transfer path and performing color printing by heating a thermal imaging printing medium having one or more image forming layers; and a laser printing engine being disposed on the transfer path on which the thermal printing engine is installed and performing printing on the supplied printing medium by electrophotolithography.

Abstract: A printing apparatus having a paper feeding unit with a feed roller that moves paper supplied from a paper tray to a printing unit, and an exit roller that releases the paper on which the printing operation is performed by the printing unit, the printing apparatus including a temperature sensor sensing an ambient temperature of the printing apparatus; and a driving controller controlling the driving of the feed roller and the exit roller according to the ambient temperature sensed by the temperature sensor.