Abstract: A light shielding apparatus for a rear window of an automobile which covers an inside of the rear window of the automobile so as to shield a rear side from a light, includes: a main light shielding material for shielding a center section of the rear window from a light; right and left sub light shielding materials for shielding right and left curved face sections of the rear window from a light; and a light shielding material moving mechanism for moving the main light shielding material and the sub light shielding materials to a light shielded state or a stored state.

Abstract: A multi-plane video RAM for displaying a color image on a display apparatus. A multi-plane bit operation unit is used for calculating input data from an external stage based on a predetermined rule corresponding to an information applied from the external stage. Memory arrays are operatively connected to the multi-plane bit operation unit for writing resultant data calculated by the multi-plane bit operation unit. Each array having three-dimensionally arranged k sets of memory planes each consisting of m (rows).times.n (columns); wherein the same corresponding positions of the k sets of memory planes are simultaneously accessed and the resultant data calculated by the multi-plane bit operation unit are also simultaneously written thereto.