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Electrophoretic display device

An electrophoretic display and electrophoretic layer technology, applied in circuits, electrical components, electrical solid devices, etc., can solve the problems of reducing pixel density and resolution, affecting display effects, voltage drop, etc., and achieving the effect of improving poor display effects.

Inactive Publication Date: 2010-12-22
HUAYING OPTOELECTRONICS +1
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Problems solved by technology

However, since the electrophoretic display device needs to provide an electric field for a long time to move the charged particles, but the electrophoretic medium is not an insulator, it will cause the TFT 12 to have charges flowing out through the electrophoretic medium liquid when charging, and after the charging is completed, Charge will still flow out to the electrophoretic medium
The current improvement method in the industry includes making a larger TFT 12 to provide charging, but this design will greatly reduce the pixel density and resolution
In addition, after the TFT 12 is fully charged, the charge may still flow out, causing the voltage in the original storage capacitor 14 to drop, that is, the electric field cannot maintain a certain strength for a long time, seriously affecting the display effect

Method used

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Embodiment Construction

[0033] Certain terms are used in the specification and claims to refer to particular components. Those of ordinary skill in the art will appreciate that manufacturers may refer to the same component by different terms. The specification and claims do not use the difference in name as the way to distinguish components, but use the difference in function of the components as the basis for the difference. "Includes and includes" mentioned throughout the specification and subsequent claims is an open term, so it should be interpreted as "including but not limited to". In addition, the word "electrically connected" herein includes any direct and indirect means of electrical connection. Therefore, if it is described that a first device is electrically connected to a second device, it means that the first device can be directly connected to the second device, or indirectly connected to the second device through other devices or connection means.

[0034] Please refer to figure 2 ...

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Abstract

The invention provides an electrophoretic display device which comprises a baseplate, wherein at least one electronic switching assembly is arranged on the surface of the baseplate, an insulating layer covers the surface of the electronic switching assembly, a liquid sealing layer is arranged above the insulating layer, an electrophoretic layer is arranged above the liquid sealing layer, a transparent conducting layer is arranged above the electrophoretic layer, and a protecting film is arranged above the transparent conducting layer, wherein the insulating layer is arranged between the electrophoretic layer and the electronic switching assembly and used for blocking the electric charge of the electronic switching assembly from flowing out to the electrophoretic layer.

Description

technical field [0001] The invention relates to an electrophoretic display device, in particular to an electrophoretic display device capable of preventing charges from flowing out into an electrophoretic medium. Background technique [0002] With the development of technology, various types of flat panel display devices, such as liquid crystal displays, organic light emitting diode displays, and plasma displays, have gradually replaced traditional cathode ray tube (CRT) displays. In recent years, display manufacturers have developed electrophoretic display devices (also known as electronic paper) to further provide thinner, softer and more portable displays. [0003] In general, an electrophoretic display device includes an upper electrode, a lower electrode, and a liquid electrophoretic medium disposed between the upper electrode and the lower electrode, wherein the electrophoretic medium contains positively charged particles suspended in the electrophoretic medium. When ...

Claims

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Application Information

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IPC IPC(8): G02F1/167H01L27/02
Inventor 林光祥杨仁光
Owner HUAYING OPTOELECTRONICS
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