Abstract: A semiconductor device includes a substrate, a two-dimensional (2D) material layer formed on the substrate and having a first region and a second region adjacent to the first region, and a source electrode and a drain electrode provided to be respectively in contact with the first region and the second region of the 2D material layer, the second region of the 2D material layer including an oxygen adsorption material layer in which oxygen is adsorbed on a surface of the second region.

Abstract: The present invention provides a general use tapping screw, which is a two-line screw having a cylindrical body, and main threads and auxiliary threads which are formed on the outer circumferential surface of the body, wherein the outer diameter of the auxiliary threads is 92˜97% the outer diameter of the main threads, the angle of the front flank surfaces of the main threads and the auxiliary threads is in the range of 12±3 degrees, the angle of the rear flank surfaces of the main threads is in the range of 25±3 degrees, the angle of the rear flank surfaces of the auxiliary threads is in the range of 20±3 degrees, and intervals between a first pitch from the main thread to the auxiliary thread and a second pitch from the auxiliary thread to the next main threads have a difference in the range of ±10-20%.

Abstract: A wavelength multiplexing device is disclosed. When light is irradiated on a first longitudinal end region of a metal nano-structure, surface plasmon polaritons are generated in the first longitudinal end region. The surface plasmon polaritons and the light are coupled with each other to form first coupled surface plasmon polaritons, wherein the first coupled surface plasmon polaritons propagate along and on a surface of the metal nano-structure. When the first coupled surface plasmon polaritons reach a two-dimensional material layer, excitions are induced in the two-dimensional material layer, wherein the induced excitions and the first coupled surface plasmon polaritons are coupled with each other to form second coupled surface plasmon polaritons. The second coupled surface plasmon polaritons propagate along and on a surface of the metal nano-structure toward a second longitudinal end thereof.

Abstract: A coil-driving IC having a first output terminal configured connected to a first terminal of a coil and a second output terminal configured connected to a second terminal of the coil is disclosed. The coil-driving IC comprises a first switch connected to the first output terminal; a second switch connected to the second output terminal; a current driving part comprising a first current terminal connected to the first output terminal via the first switch and a second current terminal connected to the second output terminal via the second switch; and a gate driving part controlling the first switch and the second switch so that, when the coil is driven by a current provided from the first current terminal or the second current terminal, the first switch and the second switch are in an ON state, otherwise, the first switch and the second switch are in an OFF state.

Abstract: The present invention relates to a method for preparing enantiomerically pure compounds 1a and 1b of the following formula 1 from racemic compound 1 of the following formula 1. [formula 1] The compounds 1a and 1b of the above formula 1 respectively are important intermediates for a process for preparing the respective compounds 2a and 2b of the following formula 2, which are 2,2?-binaphthol-3-aldehyde derivatives. The following compounds 2a and 2b are useful for preparing enantiomerically pure amino acids. The present invention provides a method for preparing the above compounds 1a and 1b very conveniently and economically, and suitably for mass production.

Abstract: A display device includes a first optical resonance layer on a substrate, a switching structure on the first optical resonance layer, a first electrode on the switching structure, a light emitting structure on the first electrode, and a second electrode on the emitting structure. The switching structure may include a switching device and an optical distance controlling insulation layer covering the switching device. A first optical resonance distance for an optical resonance of the light may be provided between an upper face of the first optical resonance layer and a bottom face of the second electrode.

Abstract: A semiconductor device includes a substrate, a two-dimensional (2D) material layer formed on the substrate and having a first region and a second region adjacent to the first region, and a source electrode and a drain electrode provided to be respectively in contact with the first region and the second region of the 2D material layer, the second region of the 2D material layer including an oxygen adsorption material layer in which oxygen is adsorbed on a surface of the second region.

Abstract: A light emitting device, including a first electrode; a hole transport area on the first electrode; a first light emitting layer on the hole transport area, the first light emitting layer emitting a first color, and having a first thickness; a second light emitting layer adjacent to one side of the first light emitting layer, the second light emitting layer emitting a second color, and having a second thickness; a first shadow layer on the first light emitting layer, the first shadow layer including a same material as the second light emitting layer, and first shadow layer having a thickness corresponding to about 1% of the second thickness; an electron transport area on the first light emitting layer, the second light emitting layer, and the first shadow layer; and a second electrode on the hole transport area.

Abstract: A coil-driving IC having a first output terminal configured connected to a first terminal of a coil and a second output terminal configured connected to a second terminal of the coil is disclosed. The coil-driving IC comprises a first switch connected to the first output terminal; a second switch connected to the second output terminal; a current driving part comprising a first current terminal connected to the first output terminal via the first switch and a second current terminal connected to the second output terminal via the second switch; and a gate driving part controlling the first switch and the second switch so that, when the coil is driven by a current provided from the first current terminal or the second current terminal, the first switch and the second switch are in an ON state, otherwise, the first switch and the second switch are in an OFF state.

Abstract: An organic light emitting display apparatus includes: a substrate; an insulation layer on the substrate and including first regions that are arranged along a first direction and second regions that are adjacent to the first regions and are arranged along the first direction; first lines on the insulation layer to cover the first regions and including first organic light-emitting layers; and second lines on the insulation layer to cover the second regions and including second organic light-emitting layers different from the first organic light-emitting layers. A portion of the first regions and a portion of the second regions facing each other are not parallel to the first direction.

Abstract: An active material for a rechargeable lithium battery is provided with a non-carbon-based material on which nanofiber-shaped carbon having an oxygen-included functional group is grown. The negative active material for a rechargeable lithium battery has good conductivity and cycle life characteristics.

Abstract: A display device, including a substrate having a first region and second regions; transistors on the substrate in the first region and the second regions; first electrodes each connected to the transistors; an organic emission layer on the first electrodes; and second electrodes on the organic emission layer, molecular weights of organic materials of the organic emission layer in the first region and the organic emission layer in the second regions being different from each other.

Abstract: A graphene laminate includes a first piezoelectric material layer having a negatively-charged surface and a positively-charged surface, a first graphene layer under the first piezoelectric material layer, the first graphene layer contacting the positively-charged surface of the first piezoelectric material layer, a second graphene layer underlying the first graphene layer, and a second piezoelectric material layer under the second graphene layer, the second piezoelectric material layer having a negatively-charged surface and a positively-charged surface, the negatively-charged surface contacting the second graphene layer.

Abstract: An access management system and method are provided. The access management system includes an authentication means having an authentication key indicating an identity of a visitor, an authentication terminal configured to register by receiving user information corresponding to the authentication key, and store the user information matched with the authentication key recognized when the visitor accesses as an access history information of the visitor, and a user terminal configured to provide the user information corresponding to the authentication key to the authentication terminal.

Abstract: A light emitting device, including a first electrode; a hole transport area on the first electrode; a first light emitting layer on the hole transport area, the first light emitting layer emitting a first color, and having a first thickness; a second light emitting layer adjacent to one side of the first light emitting layer, the second light emitting layer emitting a second color, and having a second thickness; a first shadow layer on the first light emitting layer, the first shadow layer including a same material as the second light emitting layer, and first shadow layer having a thickness corresponding to about 1% of the second thickness; an electron transport area on the first light emitting layer, the second light emitting layer, and the first shadow layer; and a second electrode on the hole transport area.

Abstract: The display device includes a display panel including upper and lower array substrates, and a patterned retarder to separate an image displayed on the display panel into left-eye and right-eye images, wherein the lower array substrate includes gate and data lines to define pixel areas, a pixel electrode formed at each pixel area, and a black stripe formed at a boundary between the pixel areas to display the left-eye image and the pixel areas to display the right-eye image, wherein the black stripe includes a first black stripe formed on the same layer and formed of the same material as an opaque layer of a thin film transistor, and a second black stripe overlapped with the first black stripe and formed on the same layer and formed of the same material as the pixel electrode.

Abstract: An access management system and method are provided. The access management system includes an authentication means having an authentication key indicating an identity of a visitor, an authentication terminal configured to register by receiving user information corresponding to the authentication key, and store the user information matched with the authentication key recognized when the visitor accesses as an access history information of the visitor, and a user terminal configured to provide the user information corresponding to the authentication key to the authentication terminal.

Abstract: A display device includes a first optical resonance layer on a substrate, a switching structure on the first optical resonance layer, a first electrode on the switching structure, a light emitting structure on the first electrode, and a second electrode on the emitting structure. The switching structure may include a switching device and an optical distance controlling insulation layer covering the switching device. A first optical resonance distance for an optical resonance of the light may be provided between an upper face of the first optical resonance layer and a bottom face of the second electrode.

Abstract: The present invention provides a general use tapping screw, which is a two-line screw having a cylindrical body, and main threads and auxiliary threads which are formed on the outer circumferential surface of the body, wherein the outer diameter of the auxiliary threads is 92˜97% the outer diameter of the main threads, the angle of the front flank surfaces of the main threads and the auxiliary threads is in the range of 12±3 degrees, the angle of the rear flank surfaces of the main threads is in the range of 25±3 degrees, the angle of the rear flank surfaces of the auxiliary threads is in the range of 20±3 degrees, and intervals between a first pitch from the main thread to the auxiliary thread and a second pitch from the auxiliary thread to the next main threads have a difference in the range of ±10-20%.

Abstract: Disclosed are a carbon nano-tube (CNT) thin film treated with chemical having an electron withdrawing functional group and a manufacturing method thereof. Specifically, the CNT thin film comprises a CNT composition to be applied on a plastic substrate. The CNT composition comprises a CNT; and chemical connected to the CNT and having an electron withdrawing functional group. In addition, the method for manufacturing a CNT thin film comprises steps of preparing a CNT; treating the CNT with chemical having an electron withdrawing functional group; mixing the CNT treated with the chemical with a dispersing agent or dispersing solvent to prepare a CNT dispersed solution; and forming a CNT thin film with the CNT dispersed solution. According to the CNT thin film and the manufacturing method thereof, a resistance of an electrode is decreased to improve the electric conductivity of the electrode.