Abstract: The present invention relates to a bathtub with cushion and a preparation method thereof which comprises an external structure layer which forms an external appearance of the bathtub; a foaming layer which is formed on the external structure layer; and a elastic protecting layer which is selected from groups of a rapid-hardening polyurea resin hardened layer, a polyurethane-urea resin hardened layer and an unfoaming painted layer, on the foaming layer.

Abstract: The present invention relates to a method of producing a semiconductor capacitor, and more particularly, to a method of producing a semiconductor capacitor, in which an electroless plating is performed during the production of a lower electrode to form a lower electrode.

Abstract: A light emitting apparatus including a first light emitting device including a first light emitting diode chip configured to emit light of a first rank included in a first color gamut, and a second light emitting device including a second light emitting diode chip configured to emit light of a second rank included in the first color gamut, in which the first rank is different than the second rank. In addition, the first and second light emitting devices are arranged in relation to each other such that the light emitted by the first emitting device mixes with light emitted by the second light emitting device to form light of a third rank different than the first and second ranks.

Abstract: Provided are a polarizing plate capable of polarizing unparallel incident light to polarized light in a high degree, and a polarizing device including the polarizing plate. The polarizing plate includes a quartz substrate including a light incidence portion continuously formed along a direction of the quartz substrate, the light incidence portion having a triangular section, the triangular section forming a sloped angle of a sloped surface or two symmetrical sloped surfaces having a real value in a range of Brewster's angle±30° (degrees). The polarizing device includes a substrate; a light source including an ultraviolet reflective part; and a polarizing plate disposed between the substrate and the light source.

Abstract: The present invention relates to a novel cyclic olefin compound, a polymer including the cyclic olefin compound, a liquid crystal alignment film including the polymer, and a liquid crystal display device including the liquid crystal alignment film. Since the polymer includes the cyclic olefin compound as a main chain, the thermal stability is excellent and the photoreactive speed is high. Accordingly, the production time can be reduced, the production cost can be reduced, and the anchoring force of the liquid crystal can be increased because the alignment property is stabilized due to the curing.

Abstract: A block copolymer of a polyimide and a polyamic acid is disclosed. Further disclosed are a method for producing the block copolymer and a positive type photosensitive composition comprising the block copolymer. The solubility of the photosensitive composition in an alkaline aqueous solution is controlled to achieve high resolution of a pattern. Further disclosed are a protective film of a semiconductor device and an ITO insulating film of an organic light emitting diode (OLED), which are formed using the block copolymer. The protective film and the ITO insulating film are very stable over time.

Abstract: The present invention relates to a novel polyimide copolymer, a method of preparing the polyimide copolymer, a liquid crystal aligning layer including the polyimide copolymer, a method of producing the liquid crystal aligning layer, and a liquid crystal display including the liquid crystal aligning layer. The liquid crystal aligning layer that includes the polyimide copolymer according to the present invention is advantageous in that when ultraviolet rays are radiated on movable chains of the polyamic acid copolymer to perform alignment before a polyimide copolymer is imidized and heat treatment is then performed to conduct imidization, thermal stability is excellent, residual images are not formed, and alignment of liquid crystals is excellent.

Abstract: Disclosed is a multi-functional monomer including a heat-curable functional group as well as a typical photoreactive group. In the multi-functional monomer, the photoreactive group is not chained to a main chain of a polymer. Thus, since it is possible to perform desirable alignment treatment even though polarized UV is radiated for a short time, the production time and the production cost are reduced and alignment regulating force of liquid crystals is increased, thereby increasing a dichroic ratio.

Abstract: The present invention to a composition for liquid crystal aligning comprising an oligoimide or oligoamic acid, which comprises a thermocurable or photocurable functional group on at least one end of the oligoimide or oligoamic acid backbone, a liquid crystal aligning layer prepared from the same, and a liquid crystal display comprising the same. The composition for liquid crystal aligning according to the present can minimize the generation of the decomposed by-products, which had been generated upon the use of polyimides, by using an oligoimide or oligoamic acid on at least one end of the backbone, instead of the conventional polyimides and has an excellent effect of improvement in alignment property, thermal stability, and image sticking.

Abstract: The present invention relates to a photosensitive composition comprising a triazine-based photoactive compound containing oxime ester. The photosensitive composition according to the present invention has good sensitivity, retention rate, mechanical strength, heat resistance, chemical resistance and developing durability since it contains, as photopolymerization initiator, a compound having an oxime ester group and a triazine group in one molecule and thus effectively absorbs UV radiation. Therefore, the photosensitive composition according to the present invention is advantageous not only in curing of materials for color filters, resin black matrixes, column spacers, overcoats and passivation films of liquid crystal displays, but also in high temperature process characteristics.

Abstract: The present invention provides a composition for forming a liquid crystal alignment film, which comprises a photoreactive polymer including a multicyclic compound having a photoreactive group on a main chain thereof. The present invention also provides a liquid crystal alignment film produced using the composition, and a liquid crystal display including the liquid crystal alignment film. The photoreactive polymer including the multicyclic compound on the main chain thereof has a high glass transition temperature, thus thermal stability is excellent. Since lattice vacancy is relatively large, the photoreactive group is capable of moving relatively freely in the main chain of the polymer, thus it is possible to improve a slow photoreaction rate, which is considered a disadvantage of a conventional polymer material.

Abstract: Disclosed is a semiconductor light emitting device. The semiconductor light emitting device comprises a first conductive semiconductor layer, a lower super lattice layer under the first conductive semiconductor layer, an active layer on the first conductive semiconductor layer, a second conductive super lattice layer on the active layer, and a second conductive semiconductor layer on the second conductive super lattice layer.

Abstract: A semiconductor light emitting device and a light emitting apparatus having the semiconductor light emitting device are provided. The semiconductor light emitting device comprises a substrate, a light emitting structure on the substrate, comprising a first conductive type semiconductor layer, an active layer, a second conductive type semiconductor layer, and a first electrode unit on sidewalls of the substrate and the first conductive type semiconductor layer.

Abstract: A semiconductor light emitting device and a method of manufacturing the semiconductor light emitting device are provided. The semiconductor light emitting device comprises a substrate having a top surface that is curved to protrude, and a light emitting structure that is curved to protrude on the substrate and comprises an active layer.

Abstract: A semiconductor light emitting device and a method of manufacturing the semiconductor light emitting device are provided. The semiconductor light emitting device comprises a substrate having a top surface that is curved to protrude, and a light emitting structure that is curved to protrude on the substrate and comprises an active layer.

Abstract: Provided is a light emitting device. The light emitting device comprises a second electrode layer, a second conduction type semiconductor layer, an active layer, a first conduction type semiconductor layer, a first electrode layer, and an insulating layer. The second conduction type semiconductor layer is formed on the second electrode layer. The active layer is formed on the second conduction type semiconductor layer. The first conduction type semiconductor layer is formed on the active layer. The first electrode layer is formed on the first conduction type semiconductor layer. The insulating layer is disposed between the second electrode layer and the second conduction type semiconductor layer.

Abstract: A semiconductor light emitting device and a method of manufacturing the same are provided. The semiconductor light emitting device comprises a substrate, a mask seed layer formed on the substrate and comprising a TI group element, a nitride layer formed on the mask seed layer and comprising a III group element, a first conductive semiconductor layer on the nitride layer, an active layer on the first conductive layer, and a second conducive semiconductor layer on the active layer.

Abstract: Provided is a semiconductor light emitting device. The semiconductor light emitting device comprises a first conductive type semiconductor layer, an active layer, and a second conductive type semiconductor layer. The active layer comprises a quantum barrier layer and a quantum well layer on the first conductive type semiconductor layer. An indium (In) composition ratio of the quantum well layer is changed in a graded manner. The second conductive type semiconductor layer is disposed on the active layer.

Abstract: A semiconductor light emitting device is provided. The semiconductor light emitting device comprises: a first conductive semiconductor layer; an active layer on the first conductive semiconductor layer; a first quantum dot layer on the active layer; and a second conductive semiconductor layer on the first quantum dot layer.

Abstract: A wafer recycling method comprises varying a temperature and pressure conditions to remove a first semiconductor layer deposited on a wafer, removing a remaining semiconductor layer on the wafer through a chemical or physical process, and washing the wafer.