A driving method for improving 16-level grayscale display effect of electrophoretic display

Abstract

The invention discloses a driving method for improving the 16-level grayscale display effect of an electrophoretic display. , the stage of activating charged particles that reach the black extreme of display gray scale or the white extreme of display gray scale at the end of the erasing phase, and the particles that reach the black extreme of display gray scale at the end of the phase of activating charged particles ; Call the driving waveform of the new driving waveform look-up table to drive the driving electrode of the display pixel of the electrophoretic display, so as to display 16-level gray scale on the electrophoretic display. The present invention increases the stage of activating charged particles, and in the process of erasing stage, the white gray scale with black extreme black or white extreme can be selected nearby, which shortens the driving time of the display; and the black gray scale is used as the reference gray scale to reduce ghost images . The invention can be widely applied in the field of display technology.

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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