APPARATUS FOR CONTROLLING IMAGE DISPLAY IN A MOBILE PHONE, PARTICULARLY FOR PREVENTING IMAGE QUALITY AT THE CENTRAL PART OF A SCREEN FROM BEING DETERIORATED DUE TO A SHORTAGE OF BITS IN CASE OF TRANSMISSION RATE CONTROL

摘要

PURPOSE: A apparatus for controlling image display in a mobile phone is provided to prevent image quality at the central part of a screen from being deteriorated due to a shortage of bits when controlling transmission rate by alternately displaying image data upward and downward from a horizontal line of a screen center when the image data stored in a host memory is displayed on an LCD(Liquid Crystal Display). CONSTITUTION: An input output part(1) receives image data from a host memory. A control part(3) controls a GRAM(Graphics Memory)(4) so that it can store the image data in order of process made alternately upward and downward from a horizontal line of LCD screen center. A source driver(5) makes the image data displayed in the order of storage in the GRAM when the image data outputted from the GRAM is displayed on an LCD screen synchronously with a scan pulse signal generated by a gate driver.