Abstract: A general purpose Liquid Crystal Display controller apparatus for controlling an LCD driver is operable to control an LCD having a plurality of individually addressable pixels arranged in lines. The apparatus has a pixel group generator for generating a pixel group for addressing respective groups of pixels on the lines of the LCD and a display buffer for storing image codes representing a desired image to be displayed on the LCD, the image codes being accessed in response to respective pixel groups. An identifier is provided for identifying each of the image codes as being a direct pixel group control code or a character addressing code and a character table is provided for storing character sub-line codes for controlling pixels in an addressed group, the character sub-line codes being accessed in response to the character addressing codes.

Abstract: A method of selective metallization of high temperature semiconductors to produce ohmic or rectifying contacts includes modification of the surface of a high temperature semiconductor material and thereafter depositng metal thereon by chemical vapor deposition. The method includes a lithographic step to define the area on the semiconductor surface where the CVD material is to be deposited. Thereafter, a beam of refractory metal ions is directed onto the defined area to damage the semiconductor material surface so that it will react with CVD gases. The contact metal is then deposited on the damaged surface by chemical vapor deposition, so that the metal seeds on the damaged exposed surface of the semiconductor to permit direct formation of metallization on that surface.