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Controllable ink filling method in electrowetting display device

A technology of electrowetting display and filling method, which is applied in the direction of instruments, optical components, optics, etc., can solve the problem of the influence of pixel wall height, and achieve the effect of preventing ink from overturning the wall

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

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Problems solved by technology

[0003] Patent CN 104932096 A introduces several existing ink filling methods, the filling speed is fast, but because the height of the pixel wall is used to control the height of the ink, it is affected by the height of the pixel wall

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with specific embodiment:

[0035] Electrowetting is also known as electrowetting, and the present invention is also applicable to the filling of ink in electrowetting displays.

[0036] In order to prevent the ink from overturning the wall during the bending and folding process of the flexible electrowetting display, it is necessary to increase the height of the pixel wall to reach a height of 1-100 μm, and a better height is 10-70 μm.

[0037] Because the voltage is affected by the amount of ink, that is, the more ink in a single pixel grid, the greater the voltage required for opening and closing. Therefore, the ink height is preferably 1-10 μm, more preferably 2-5 μm.

[0038] The following is a detailed introduction to the method of controlling the amount of ink by the soft template method

[0039] 1. Prepare the first template and the second template

[0040] Both the first template and the sec...

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Abstract

The invention belongs to the field of an electrowetting display device, and discloses a controllable ink filling method in an electrowetting display device. Particularly the method comprises the following steps of S1, preparing a first template and a second template, wherein the first template is provided with a recessed structure which corresponds with the pattern of a pixel wall, the width of a first template projected part is smaller than that of a single display area, the width of a first template recessed part is larger than that of the pixel wall, and the second template is provided with a structure which is buckled with the first template; S2, performing hydrophobic treatment on the recessed trough and bottom sidewall of the first template by means of the second template; and S3, pressing the ink of the display area out by means of the first template, thereby controlling height of the ink. According to the controllable ink filling method, fixed amount of ink is squeezed and sucked out by means of a template method for controlling the height of the ink in each pixel grid; the height of the ink can be accurately controlled; the height of the ink does not depend on the height of the pixel wall; the controllable ink filling method can be used for ink height control of a flexible display device and a common electrowetting display device; and furthermore ink spreading out of a wall can be prevented.

Description

technical field [0001] The invention belongs to the field of electrowetting displays, in particular to a controllable ink filling method in an electrowetting display. Background technique [0002] The electrowetting display device includes a fluid chamber and an electrode structure, wherein the fluid chamber contains a non-conductive first fluid (alkane, etc.), a conductive second fluid (water or salt solution), and the fluids are in contact with each other and are immiscible. For example, the patent CN 102792207A describes an electrowetting display device, which includes two support plates, that is, upper and lower substrates, and a wall pattern, that is, a pixel wall, is arranged on the lower substrate. The pixel wall encloses a pixel grid, and the area in the pixel grid is The display area, the display area is arranged with a hydrophobic insulating material, and the ink is filled on the hydrophobic insulating layer due to its hydrophobicity. The display principle of the e...

Claims

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Application Information

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IPC IPC(8): G02B26/00
CPCG02B26/005
Inventor 水玲玲窦盈莹金名亮周国富
Owner SOUTH CHINA NORMAL UNIVERSITY
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