Electrowetting display device capable of controlling ink movement and preparation method thereof

An electrowetting display and oil column technology, which is applied in the direction of instruments, optics, optical components, etc., can solve the problems of low ink movement efficiency, loss of aperture ratio, and difficult edge smoothing, etc., to achieve a process that is controllable, The effect that the process is easy to achieve
CN106932894AInactive Publication Date: 2017-07-07SOUTH CHINA NORMAL UNIVERSITY +2
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SOUTH CHINA NORMAL UNIVERSITY
Publication Date
2017-07-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention, which relates to the technical field of an electrowetting display device, discloses an electrowetting display device capable of controlling ink movement and a preparation method thereof. The display device comprises an upper substrate and a lower substrate. The upper substrate consists of an upper support plate, a first electrode, and a sealant; and the lower substrate includes a lower support plate, a second electrode, a hydrophobic insulating layer and pixel walls and ink control posts are arranged at the pixel walls. In addition, the invention also discloses a preparation method for the electrowetting display device. Because of the ink control posts arranged at the pixel walls, a reliable control way is provided for ink movement. When ink is opened, the ink control posts are compatible with the ink and are repellent to water, so that ink in four pixel grids around the posts is collected towards the posts to realize oriented movement of ink under pressurization and thus the ink movement direction can be controlled. Meanwhile, ink in the pixel grids is reduced because the ink is collected to the posts during the pressurization process, so that the aperture opening ratio of the pixel grid increases.
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Description

technical field

[0001] The invention relates to the technical field of electrowetting display devices, in particular to an electrowetting display for controlling ink movement and a preparation method thereof. Background technique

[0002] The so-called wetting refers to the process in which one fluid on a solid surface is replaced by another fluid. The liquid can spread on the solid surface, and the solid-liquid contact surface tends to expand, that is, the adhesion force of the liquid to the solid surface is greater than its cohesive force, which is wetting. The liquid cannot spread on the solid surface, and the contact surface tends to shrink into a spherical shape, that is, it is not wet, and the non-wet means that the adhesion force of the liquid to the solid surface is less than its cohesive force. Electrowetting (Electrowetting, EW) refers to the phenomenon of changing the wettability of the droplet on the substrate by changing the voltage between the droplet and the ...

Claims

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