Image updating method of electronic paper screen

Abstract

A method for updating the image of an electronic paper screen comprises the following steps that: a screen and an image are divided into NxN zones and each zone is numbered; the corresponding zones of the current display image on the electronic paper screen and a to-be-displayed image are compared to calculate different zones; according to the operation result, upmost, downmost, leftmost and rightmost different zones are found out to calculate the areas of the minimum rectangles of all different zones; thus, the operation result is equal to the updating area of the image, and the area is compared with a set threshold; and the display mode of the screen is set according to the compared result to display the image. The method effectively reduces the data quantity of image display updating, and saves the power consumption of an electronic paper system and particularly the power consumption of the electronic paper screen; moreover, the method increases the screen display response time of the electronic paper system; meanwhile, the method is easy to be transplanted to various advanced embedded type operating systems, thereby providing a feasible method for the further application of the relevant fields of electronic paper.

Description

technical field [0001] The invention relates to an image display update method, in particular to an image display update method on an electronic product device using an electronic paper display screen as a display output. Background technique [0002] In recent years, a paper-like flexible and thin rewritable display called electronic paper has attracted more and more attention. This kind of flexible and thin electronic paper screen can maintain the display of images in the state of no power supply. Electronic paper is an electronic device specially used for reading. It has high contrast, clear text, supports screen handwriting, consumes very little power, and can be gently bent. The electronic paper screen can erase or rewrite the image kept displayed on the screen, and can be reused, thereby saving paper resources. [0003] It is precisely because the electronic paper display screen has the above-mentioned many advantages that a large number of electronic products with el...

AI Technical Summary

Problems solved by technology

[0003] It is precisely because the electronic paper display screen has the above-mentioned many advantages that a large number of electronic products with electronic paper as the display screen have appeared on the market, but the existing electronic paper products have considerable limitations, that is, when the electronic paper screen image is updated When there is no effective image update method, this will cause delays in screen display and increase power consumption

Images