Driving Waveform Debugging Method for Partial Refresh and Fast Refresh of Electronic Paper Module

Abstract

The invention provides a driving waveform debugging method for local refreshing and rapid refreshing of a bicolor and tricolor electronic paper module. An electronic paper module, an integrated circuit and a driving program are provided; the driving waveform debugging method for local refreshing comprises sending a positioning signal to the electronic paper module to the integrated circuit througha driving program, thereby enabling a waveform signal to perform refreshing at a specific region of the electronic paper module; the driving waveform debugging method for rapid refreshing comprises changing the original repeatedly refreshed wave signal to non-voltage segment from a positive-negative voltage segment, and then increasing the non-voltage segment of the waveform signal or reducing the positive-negative voltage segment of the waveform signal, shortening the driving time of the waveform signal, thereby rapidly updating a picture; the repeated refreshing means once lifting movementcycle of charge particles in a single refreshing process. Compared with the traditional driving waveform, the driving waveform debugging method for the rapid refreshing of the bicolor and tricolor electronic paper module is small in power consumption and short in refreshing time, and the refreshing can be performed at the specific region of the electronic paper module.

Description

technical field [0001] The invention relates to the technical field of electronic paper, in particular to a driving waveform debugging method for partial refresh and fast refresh of two-color and three-color electronic paper modules. Background technique [0002] Electronic paper is a display screen made of electrophoretic display technology. It achieves the effect of displaying images by continuously applying the waveform of the driving voltage to each pixel by driving the integrated circuit. Two-color electronic paper encapsulates black and white charged particles in the same capsule structure, and three-color electronic paper refers to encapsulating charged particles of three colors, such as black, white, red, black, white, yellow, or black, white and blue, in the same capsule structure. The negative electric field controls the up-and-down movement of black, white and red particles with different charges to display black and white two-color and three-color display effects...

AI Technical Summary

Problems solved by technology

The process of activating the particles is a square wave with a duty cycle of 50%, but this activation method is not suitable for all color scale conversion processes; this activation method makes the electronic paper display screen switch between black and white, and the color The path of step conversion is the longest, which seriously affects the image refresh speed

In addition, the traditional driving waveform can only refresh the entire area of ​​the electronic paper module, so that the area of ​​the electronic paper module that does not need to be refreshed is repeatedly refreshed, which not only affects the increase of image refresh time, but also wastes power and increases the cost of use.

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