Driving method for improving 16-grayscale display effect of electrophoretic display

Abstract

The invention discloses a driving method for improving the 16-grayscale display effect of an electrophoretic display. The method comprises steps as follows: establishing a new driving waveform lookup table of the electrophoretic display, wherein driving waveforms in the new driving waveform lookup table are at an erasing stage, a charge particle activation stage and a new grayscale display stage sequentially, and particles reach the black extreme or the white extreme of grayscale display when the erasing stage is ended and reach the black extreme of grayscale display when the charge particle activation stage is ended; calling the driving waveforms of the new driving waveform lookup table to perform display drive on driving electrodes of display pixels of the electrophoretic display, so that the 16 grayscale is displayed on the electrophoretic display. The charge particle activation stage is added, the black grayscale of the black extreme or the white grayscale of the white extreme can be selected nearby at the erasing stage, and the driving time of the display is shortened; besides, the black grayscale is used as a reference grayscale, and ghosts are reduced. The driving method can be widely applied to the technical field of display.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a driving method for improving the 16-level grayscale display effect of an electrophoretic display. Background technique [0002] E-paper is a thin and flexible paper-like object, which is a new generation of displays. It organically combines the properties of traditional paper with the rewritable characteristics of electronic display, and at the same time has the flexibility of traditional paper and the flexibility of electronic display to change images and characters. Compared with other display technologies, electrophoretic image display technology, one of the key technologies of electronic paper, has the advantages of large viewing angle and low power consumption, so it is widely used in the industry. Electrophoretic image display technology uses the principle of electrophoresis in colloid chemistry to stably disperse charged white and black particles in the non-aqueous dis...

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Problems solved by technology

However, this method uses white as the reference gray scale, which is affected by the electrophoretic properties of white particles (related to material, density, volume, and charge, etc.), and the stage from white gray scale to writing a new target gray scale is required. The time is relatively long, which means that this method does not actually shorten the total time length of the driving waveform, especially for the full-screen display of multi-level grayscale, this method does not shorten the response time of the display (by the driving waveform Determined by the total length of time) that does not reduce the driving time of the display, nor does it reduce the existence of ghost images

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