The present invention relates to a display method and device for improving the luminous efficiency of a matrix display using a pulse-width modulation, or PWM, technique. There are only two lens elements with refractive power in the compact imaging lens assembly. The method and system further include automatically filling-in the site-specific fields of each of the career websites with the mapped user information, and forming respective query strings from the filled-in site-specific fields for each of the career websites. A second embodiment provides a spare bit line on each side of the array. In a fourth step, the upper electrode layer is patterned in order to form multiple electrodes corresponding respectively to each pressure chamber of the pressure chamber forming unit, wherein by placing a voltage between the upper electrode layer and the electrode layer for polarization, the first sheet is polarized in the direction of its thickness. The memory cell also includes a trench capacitor.