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Bistable electrowetting display and preparation method thereof

An electrowetting display, bistable technology, applied in the directions of instruments, optical components, optics, etc., can solve the problems of complex manufacturing process, difficult production and preparation, difficult to realize industrialization and application promotion, etc., and achieve simple preparation process and structure. Simple, Steady State Effect

Active Publication Date: 2016-11-16
SOUTH CHINA NORMAL UNIVERSITY +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the manufacturing process of this structure is quite complicated, the production and preparation are very difficult, and it is difficult to realize industrialization and application promotion.

Method used

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  • Bistable electrowetting display and preparation method thereof
  • Bistable electrowetting display and preparation method thereof
  • Bistable electrowetting display and preparation method thereof

Examples

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Embodiment 1

[0058] Take the substrate, the substrate of glass material is used in this embodiment, other materials with the same effect can be used as the substrate. A conductive layer is prepared by depositing a layer of silver, gold or ITO on different regions of the substrate surface by means of magnetron sputtering, etc., and the conductive layer includes a plurality of electrode pairs composed of a first electrode and a second electrode, each of which The electrode pairs are arranged corresponding to each pixel grid, the first electrode is arranged at a corner of the pixel grid, and an arc-shaped spacer strip is formed between the first electrode and the second electrode in each electrode pair. The thickness of the conductive layer can be controlled by the time of magnetron sputtering, and the film thickness is usually controlled between 25-100nm. The narrower the width of the arc-shaped spacer strips, the better, usually 2-10 microns. Wherein, the aperture ratio of the pixel is con...

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Abstract

The invention discloses a bistable electrowetting display and a preparation method thereof. The display comprises a lower substrate which comprises a lower substrate which comprises a substrate and also comprises a conducting layer, an insulating layer and a pixel wall structure orderly arranged on the substrate. The conducting layer comprises multiple electrode pairs formed by first electrodes and second electrodes, each of the electrodes is arranged to be corresponding to each pixel grid, a first electrode is arranged at the corner of each pixel grid, an arc-shaped spacing bar band is formed between a first electrode and a second electrode. The insulating layer comprises a hydrophobic area and a hydrophilic area. The hydrophilic area is multiple arc-shaped bar band areas corresponding to the arc-shaped spacing bar bands. The bistable electrowetting display has the advantages of simple structure and simple preparation technology, direct current is directly added to the first electrodes and the second electrodes, and printing ink is contracted to one corner of each of the pixel grids corresponding to the first electrodes. After voltage is stripped, the stable state characteristic of pixels is maintained, direct current is added to a common electrode and the first electrodes, the printing ink moves and is spreaded at the area of the pixel grids corresponding to the second electrodes, and the stable state characteristic of the pixels is maintained.

Description

technical field [0001] The invention relates to the technical field of electrowetting display, in particular to a bistable electrowetting display and a preparation method thereof. Background technique [0002] Electrowetting electronic paper display is a new reflective display technology that uses an external electric field to manipulate the surface tension of the polar liquid in the pixel, thereby promoting ink spreading and contraction, and realizing optical switching and grayscale control. The bistable state is the key to the electronic paper display technology to achieve ultra-low energy consumption. Since the birth of self-reflective electrowetting display technology, the exploration of bistable electrowetting display technology has never stopped. In 2008, German Advanced Display Technology Co., Ltd. (ADT) proposed a bistable electrowetting display structure by using the liquid transport characteristics of electrowetting driven by electrode arrays (see reference [1]), ...

Claims

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Application Information

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IPC IPC(8): G02B26/00
CPCG02B26/005
Inventor 唐彪赵青罗伯特·安德鲁·海耶斯周敏周国富
Owner SOUTH CHINA NORMAL UNIVERSITY
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