Method and system for reducing ghost shadows of electronic ink screen

Abstract

The invention provides a method and system reducing ghost shadows of an electronic ink screen. In a Partial mode, when refreshment is carried out between two same gray scales, one or more frames of the gray scales are added, a refreshing mode that a grey scale is compensated in the process of a grey scale to the grey scale is achieved, the effect of VCOM voltage of the electric ink screen is resisted, the electric ink screen is prevented from darkening, the ghost shadows are reduced, the display speed is not influenced, and thus the display effect is greatly improved.

Description

technical field [0001] The present invention relates to the technical field of electronic screen display, in particular to a method and system for reducing image sticking on an electronic ink screen. Background technique [0002] Electronic ink screen, also known as E-Ink screen, is a screen that does not emit light itself but relies on external reflection to achieve display effect. It has a paper-like appearance experience, so it plays an important role in the field of e-books. [0003] The electronic ink screen is composed of charged black and white particles. According to the different voltage of each point, the movement range of the black and white particles can be controlled, thus presenting different gray scales on the screen. The current electronic ink screens on the market generally have 16 grayscales (expressed in hexadecimal numbers, black is 0, white is F), and when the screen is switched, it is necessary to switch between different grayscales. There are a total o...

AI Technical Summary

Problems solved by technology

At present, the same grayscale in Partial mode will not cause refresh. For example, from white to white, from black to black, the screen will not be refreshed, but the electronic ink screen has a VCOM voltage to compensate the resistance of the screen itself. In VCOM When the screen is charged and the screen is not refreshed, VCOM will make the charged white particles move down slowly, and the black particles will slowly appear, resulting in a darkening phenomenon

So, if Figure 1B As shown, in the Partial mode, white to white is not refreshed, the effect of the VCOM voltage of the electronic ink screen itself will make the screen darken gradually, so that the whiteness will decrease, and the relative black to white will be refreshed, The whiteness is relatively high, and the final two whitenesses will be different, causing afterimages and affecting the display effect

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