Abstract: The present disclosure relates to a method for preparing a polyalkylene carbonate resin, and more particularly, to a method for preparing a polyalkylene carbonate resin having the reduced cyclic carbonate content, which is a by-product, and an increased ratio of a repeating unit including carbon dioxide, by increasing catalyst activity.

Abstract: A display device may include pixels disposed on a substrate. Each of the pixels may include a first conductive layer including first, second, and third conductive patterns, first and second insulating layers that are stacked on each other on the first conductive layer, a second conductive layer including a first power line, a second power line, and a connection pattern, third and fourth insulating layers that are stacked on each other on the second conductive layer, a third conductive layer including first alignment electrodes and second alignment electrodes, and a light emitting element disposed on the first and second alignment electrodes. At least one of the first alignment electrodes may be electrically connected to at least one of the first, second, and third conductive patterns.

Abstract: A display device includes first and second pixels including first to third sub-pixels. Each of the first to third sub-pixels includes a first area disposed at a side of a pixel circuit, a second area disposed on another side of the pixel circuit, light emitting elements electrically connected to the pixel circuit, and an electrode electrically connecting the light emitting elements and the pixel circuit. The electrode of the first sub-pixel of the first pixel includes a first extension electrically connected to the pixel circuit in the first area and overlapping the second area in plan view, and the electrode of the first sub-pixel of the second pixel includes a second extension electrically connected to the pixel circuit in the second area and overlapping the first area in plan view.

Abstract: A display device includes pixels disposed on a base layer, each of the pixels including electrodes and a light emitting element disposed on the electrodes, and scan lines that supply a scan signal to the pixels. The pixels include a first pixel and a second pixel disposed adjacent to the first pixel. The scan lines include a first pixel scan line that supplies a first scan signal to the first pixel, and a second pixel scan line that supplies a second scan signal to the second pixel. The electrodes include a first electrode and a second electrode, which are spaced from each other. The second pixel scan line is electrically connected to a second electrode of the first pixel.

Abstract: The present invention provides compositions of herbs and methods of using the compositions for treating and preventing microbial infection, especially dental caries or periodontal disease.

Abstract: There is provided a system for realization of a base station controller in a compact PCI, which establishes a code division multiple access (CDMA) base station controller partly using functions of H.110. The system for realizing a base station controller in a compact PCI uses paths for CDMA packet routines by using partial functions of H.110, extracts clocks from networks without using a GPS and composes a reference clock of the base station controller using the extracted clocks to use the reference clock as a reference frequency in CDMA.