Support plate capable of improving performance of electric wetting displayer, manufacture technology thereof and electric wetting displayer

Abstract

The invention provides a manufacture technology of a support plate capable of improving performance of an electric wetting displayer. The manufacture technology of the support plate capable of improving the performance of the electric wetting displayer includes following steps: manufacturing a first layer picture element wall on the support plate; then, arranging a hydrophobic layer, and further arranging a protection layer on the hydrophobic layer so as to perform surface modification on the hydrophobic layer and change the hydrophobic layer on the upper surface of the first layer picture element wall into a hydrophilic layer; finally, arranging a second layer picture element wall on the hydrophilic layer. The manufacture technology of the support plate capable of improving the performance of the electric wetting displayer prevents damage to the hydrophobic layer, guarantees completeness of the hydrophobic layer, can effectively prevent liquid above the hydrophobic layer from entering the edge of the hydrophobic layer and apertures in picture element material, and prevents the problem that an upper support plate and a lower support plate are short circuited, and simultaneously can effectively prevent oils from penetrating through the picture element walls, and improves device quality. The invention further provides the support plate prepared by using the manufacture technology and the electric wetting displayer with the support plate. The support plate capable of improving the performance of the electric wetting displayer, the manufacture technology thereof and the electric wetting displayer can be used in electric wetting display.

Description

technical field [0001] The invention relates to the technical field of electrowetting display, in particular to a support plate for improving the performance of an electrowetting display, a manufacturing process thereof, and an electrowetting display including the support plate. Background technique [0002] Electrowetting is a microfluidic phenomenon that has begun to be widely used as an actuation mechanism for various fluidic and electro-optical devices. At present, electrowetting display technology has been widely used. It provides a display unit based on electrowetting technology, including a fluid chamber and an electrode structure, wherein the fluid chamber contains a conductive fluid and a non-conductive fluid, and the fluids are in contact with each other. Immiscible, wherein the electrode structure comprises a first electrode in contact with the conductive fluid and a second electrode arrangement disposed at the chamber wall. [0003] International patent applicat...

AI Technical Summary

Problems solved by technology

However, there is a problem with this method, that is, when the hydrophobic layer material is etched into a pattern of a pixel grid shape, there will be gaps due to the bonding between the hydrophobic layer and the pixel wall, which will cause vibrations above the hydrophobic layer after multiple switches. Water (or ionic liquids and saline solutions such as sodium chloride aqueous solution) short circuit after contact with the bottom electrode, thus affecting the reliability of the device

[0006] Moreover, the above schemes all have the risk of oil crossing the pixel wall and entering another pixel grid

As in the solution in WO 2003 / 071346, the insulating layer is easily deformed by heating, causing it to cover (climb up) the side of the pixel wall, resulting in insufficient surface area of ​​the hydrophilic material pixel wall between pixels, thus causing Oil jumps over the cell wall into another pixel

However, in the above-mentioned scheme of making the pixel wall directly on the support plate, the side of the pixel wall is completely surrounded by the material of the hydrophobic layer, and there is a risk that the oil cannot be effectively prevented from jumping over and jumping into another pixel grid.

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