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Driving method of electrophoresis display device

An electrophoretic display and driving method technology, which is applied to static indicators, electrical digital data processing, input/output process of data processing, etc., can solve problems such as increased manufacturing cost, increased power consumption, and damage to the reliability of electrophoretic display devices. , to achieve the effects of improving reliability, increasing circuit scale, and suppressing leakage current

Inactive Publication Date: 2009-06-10
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This leakage current has a small current value per pixel, but it is large in the display part of the electrophoretic display device as a whole, which leads to an increase in power consumption.
[0008] In addition, due to the generation of leakage current, the first electrode may undergo a chemical reaction, which may also damage the reliability of the electrophoretic display device.
Therefore, it is considered that the reliability can be improved by using a chemically stable and highly corrosion-resistant material such as gold or platinum for the first electrode, but in this case, there is a problem that the manufacturing cost increases.

Method used

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  • Driving method of electrophoresis display device
  • Driving method of electrophoresis display device
  • Driving method of electrophoresis display device

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Embodiment Construction

[0060] Next, the electrophoretic display device 1 of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram of an electrophoretic display device 1 according to an embodiment of the present invention. The electrophoretic display device 1 includes a display unit 3 , a scanning line driving circuit (pixel driving unit) 6 , a data line driving circuit (pixel driving unit) 7 , a common power supply modulation circuit (potential control unit) 8 and a controller 10 .

[0061] In the display unit 3 , pixels 2 are formed in a matrix of M pixels in the Y-axis direction and N pixels in the X-axis direction. The scanning line drive circuit 6 is connected to the pixels 2 via a plurality of scanning lines 4 ( Y1 , Y2 , . . . , Ym) extending in the X-axis direction in the display unit 3 . The data line drive circuit 7 is connected to the pixels 2 via a plurality of data lines 5 ( X1 , X2 , . . . , Xm) extending in the Y-axis direction in th...

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Abstract

The invention relates to a driving method of an electrophoretic display device, aiming at providing a driving method of an electrophoretic display device in order display, capable of restricting a first control line and a second control line, drain current between pixels and improving reliability of products. Additionally, potential difference is generated between electrodes and electrophoretic particles are driven, thereby display varies along with data input. Therefore, great increase of circuit scale is avoided to achieve image display in order.

Description

technical field [0001] The invention relates to a driving method of an electrophoretic display device. Background technique [0002] An electrophoretic display device includes a plurality of first electrodes (pixel electrodes), a second electrode facing the plurality of first electrodes, and an electrophoretic element sandwiched between these electrodes. In order to display an image with this electrophoretic display device, an image signal is temporarily stored in a memory circuit via a switching element. The image signal stored in the memory circuit is input to the first electrode, a potential is applied to the first electrode, and a potential difference is generated between the first electrode and the second electrode to which a predetermined potential is applied. Thereby, the electrophoretic element can be driven and an image can be displayed. [0003] As the memory circuit, an SRAM system using SRAM (Static Random Access Memory) or a DRAM (Dynamic Random Access Memory)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34G02F1/167
CPCG06F3/03545G06F3/041G09G3/344G09G2300/0439G09G2300/0838G09G2300/0857
Inventor 下平泰裕前田浩
Owner SEIKO EPSON CORP