1. An image signal processing LSI comprising: a data unit for inputting serial image data, converting the image data into parallel image data, and transferring the parallel image data to a processor unit; the processor unit including a plurality of parallelly arranged processor elements each thereof receiving image data from said data unit and modulation data with respect to the image data; a control unit for altering operation functions of the processor elements of said processor unit; and a linkage unit coupled to the processor unit for receiving the parallelly processed data and carrying out a linkage operation of the parallelly processed data received from the processor unit.