Patent ID: 7271808

Claim:
An image display control method, comprising: reading display data written in a memory circuit in the units of lines; holding said display data read from said memory circuit in the units of lines in a line latch circuit; supplying said display data in the units of lines to an image display apparatus from said line latch circuit such that said image display apparatus accordingly displays an image; detecting an access contention for the same address in said memory circuit, which occurs between writing to update said display data and reading of said display data to display an image; and in response to detection of said access contention, generating a display read signal and a display line data transfer signal based on a memory write clock; and supplying said display read signal and said display line data transfer signal to said memory circuit while supplying said display line data transfer signal to said line latch circuit which holds, in the units of lines, data which has been read out from said memory circuit, whereby said display data representing the line for which said access contention has occurred is read out from said memory circuit and transferred to said line latch circuit.