Memory control device, mobile terminal, memory control program, and computer-readable recording medium

Abstract

This memory control device comprises a read-out reset control unit (32) that: temporarily suspends a read-out operation at, or immediately before, a point in time when a read pointer (rp) catches up with a write pointer (wp) or when the wp catches up with the rp; and, at a predetermined point in time for resuming read-out, redoes the operation for reading out image data from a position where the read-out operation was started in a frame memory (31).

Description

technical field [0001] The present invention relates to a memory control device that writes data transferred from a main processor into a frame memory, reads the data written into the frame memory, and transfers it to a display panel such as an LCD (Liquid Crystal Display: liquid crystal display), and includes the memory control device. A portable terminal of the device, a memory control program, and a computer-readable recording medium on which the memory control program is recorded. Background technique [0002] Generally, when image data is transmitted from a main processor (hereinafter referred to as "host") to a display panel such as an LCD, the image data is temporarily stored in a frame memory (hereinafter referred to as "LCD") in an LCDC (LCD Controller: liquid crystal display controller). called "memory") and then output to the display panel. Accordingly, when there is no update of display data, there is no need to transfer image data from the host computer. [00...

AI Technical Summary

Problems solved by technology

[0004] Therefore, without completely compensating for the difference in transfer speed of image data, an overrun phenomenon called image data tearing, which outputs incomplete image data being stored in the memory to the display panel, occurs.

In addition, incomplete image data output to the display panel when tearing occurs causes flickering during image display

Images