Electrowetting display device

Abstract

The invention discloses an electrowetting display device. The electrowetting display device includes a lower substrate, an upper substrate, a medium layer, a lower electrode, an upper electrode, and a molecular chain layer. The medium layer is disposed between the lower substrate and the upper substrate. The medium layer includes a first medium and a second medium separated from each other. The first medium is a light transmission medium, and the second medium is a light-shielding medium. The lower electrode is disposed between the medium layer and the lower substrate. The molecular chain layer is disposed between the medium layer and the lower electrode. The molecular chain layer includes molecular chains. Each molecular chain has a first section and a second section. The first section is used to attract the first medium or repel the second medium. The second section is used to attract the second medium or repel the first medium.

Description

technical field [0001] The present invention relates to an electrowetting display device, in particular to an electrowetting display device which uses changes in the arrangement of molecular chains to generate water-repelling and lipophilic or oil-repelling and hydrophilic effects. Background technique [0002] figure 1 and figure 2 Shown is a schematic diagram of a conventional electrowetting display device. Such as figure 1 and figure 2 As shown, the conventional electrowetting display device 100 includes a lower substrate 110 and an upper substrate 120 disposed opposite to each other. A lower electrode 130 , an upper electrode 140 , an insulating layer 150 , a sealant 160 , a polar aqueous solution 171 and an ink 172 are disposed between the lower substrate 110 and the upper substrate 120 . The display area P is defined by the lower substrate 110 , the upper substrate 120 and the sealant 160 . When no voltage is applied to the lower electrode 130 and the upper ele...

AI Technical Summary

Problems solved by technology

[0003] In traditional electrowetting display devices, the insulating layer is generally formed of materials such as silicon oxide or silicon nitride, and fluorine treatment is required on the surface to enhance the hydrophobicity of the insulating layer, but this also increases the manufacturing cost

In addition, since the traditional electrowetting display device uses the surface induced charge of the insulating layer to produce a hydrophilic and oil-repellent effect, the control of the ink distribution position is easily affected by factors such as the height difference and surface uniformity of the insulating layer surface. Causes problems such as hysteresis, slow flow or incomplete flow of ink flow

Images