Method and device for correcting color of color electrowetting display

Abstract

The invention relates to a method and a device for correcting the color of a color electrowetting display. In the method, inverse L-V transformation is carried out on the primary color data of each color according to the nonlinear relationship (L-V relationship) between the relative luminance L of each primary color of a color electrowetting device and the driving voltage V, so that the reductionand reproduction of the colors of an original image can adapt to the L-V characteristic of a color electrowetting display, the relative luminance of each primary color and the driving voltage generated under control of the image data of the primary color have an approximate linear relationship, and finally, color image data can be reproduced on the display truly and accurately. The circuit devicefor implementing the method mainly includes a main controller unit, a color image data input interface unit, an RGB channel data inverse L-V transformation unit, an RGB grayscale modulator unit, a line scanner unit, a power unit, and the like. Color image data can be reproduced on the display truly and accurately. The image reduction and display ability of the color electrowetting device can be greatly improved. Higher display quality can be achieved.

Description

technical field [0001] The invention relates to the technical field of displays, in particular to a color correction method and device for a color electrowetting display. Background technique [0002] In recent years, due to the demand for low power consumption of displays and outdoor reading, reflective display devices have attracted much attention. Among them, there is a new type of reflective electrowetting (Electro Wetting Device, EWD) display The device, because it is based on the control of the polar liquid in the power-on state, has a faster response speed than other reflective display devices, and can also achieve high brightness, high contrast, and low energy consumption. But how to display accurate color images and even videos on electrowetting devices still has a lot of room for improvement. In order to achieve accurate color image and video display on electrowetting displays, there must be a set of color image realization methods that can be designed according t...

AI Technical Summary

Problems solved by technology

It is well known that the display brightness (or aperture ratio) of a typical electrowetting display device has a nonlinear relationship with the driving voltage, so the color image data is directly modulated in grayscale to drive the color electrowetting display to realize the display of color images , it will lead to inaccurate color of the displayed image, serious color image distortion and many other problems

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