Abstract: An electroluminescent display device includes an electroluminescent display device includes a substrate; a first pixel row on the substrate including a first plurality of pixels arranged along a first direction; a second pixel row on the substrate including a second plurality of pixels arranged along the first direction, the second pixel row being spaced apart from the first pixel row in a second direction; a first groove between the first and second pixel rows; and a light emitting diode in each pixel of the first and second pixel rows, wherein the first groove includes a first portion at one end of the first pixel row, a second portion at the other end of the first pixel row and a third portion between the first and second portions, and wherein third portion is smaller than the first portion and greater than the second portion.

Abstract: A method and apparatus for measuring resource information of a mobile communication base station antenna. The apparatus three-dimensionally measures resource information of a mobile communication base station antenna using a distance/angle measurement device, such that it can automatically measure resource information associated with azimuth angle, distance, and inclination of the antenna. The method includes the steps of: a) measuring distance and angle of a mobile communication base station antenna when an azimuth angle to magnetic north is determined, and calculating three-dimensional coordinates; b) calculating azimuth angle and inclination of the antenna based upon the three-dimensional coordinates; and c) calculating an error value of a position of the antenna based upon the calculated azimuth angle and inclination of the antenna.

Abstract: A method and apparatus for measuring resource information of a mobile communication base station antenna. The apparatus three-dimensionally measures resource information of a mobile communication base station antenna using a distance/angle measurement device, such that it can automatically measure resource information associated with azimuth angle, distance, and inclination of the antenna. The method includes the steps of: a) measuring distance and angle of a mobile communication base station antenna when an azimuth angle to magnetic north is determined, and calculating three-dimensional coordinates; b) calculating azimuth angle and inclination of the antenna based upon the three-dimensional coordinates; and c) calculating an error value of a position of the antenna based upon the calculated azimuth angle and inclination of the antenna.