Electrowetting display devices

Abstract

Electrowetting devices (EWD) are presented. The electrowetting device includes a first substrate and an opposing second substrate with a polar fluid layer and a non-polar fluid layer interposed therebetween. A first transparent electrode is disposed on the first substrate. A second electrode is disposed on the second substrate. A first partition structure is disposed on the first substrate; thereby defining a plurality of color sub-pixels. A dye and / or a pigment substance is doped in one of the polar fluid layer and the non-polar fluid layer. A luminescence substance is doped in one of the polar fluid layer and the non-polar fluid layer. An emission module (also known as an excitation module) is disposed underlying the bottom of the first substrate. The colors of the non-polar fluid layerin the neighboring sub-pixels are different.

Description

technical field [0001] The present invention relates to a display component, in particular to an electrowetting display component. Background technique [0002] Electrowetting display devices use electrowetting or electrocapillary (electrocapillary) technology to display image changes. In simple terms, the electric field effect is applied to a fluid with a free surface, so that the distribution area of ​​the fluid can be changed along the electric field effect. [0003] U.S. Patent No. 6,967,763, which is hereby incorporated by reference, discloses an electrowetting display module, wherein the polar fluid in the electrowetting display module displaces the nonpolar fluid due to the electrowetting effect, causing the nonpolar fluid to collect and / or shrink, To control the bright state and / or dark state of the pixel. [0004] Figure 1A with Figure 1B Cross-sectional views showing the voltage-off and voltage-on states of a conventional electrowetting assembly, respectively....

AI Technical Summary

Problems solved by technology

[0008] However, the traditional single-layer color electrowetting display structure combines black non-polar fluid (such as ink) and color filters, part of the incident light will be absorbed by the color filters, thus reducing the contrast and brightness of the display components

Although the three-layer color stacked electrowetting display module can improve color saturation, the three-layer stacked structure not only increases the production process, but also needs to control the alignment accuracy of each layer, which will increase the production cost.

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