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Electrophoretic display device and method for driving the same

A technology of electrophoresis display and electrophoresis, which can be used in static indicators, instruments, nonlinear optics, etc., and can solve problems such as multiple grayscale difficulties.

Active Publication Date: 2009-01-28
E INK CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, it is extremely difficult to display multiple gray scales because the charged electrophoretic particles stay in the middle between the electrodes

Method used

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  • Electrophoretic display device and method for driving the same
  • Electrophoretic display device and method for driving the same
  • Electrophoretic display device and method for driving the same

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Embodiment Construction

[0042] The present invention relates to an electrophoretic display device ( FIG. 1 ) in which an electrophoretic material is sandwiched between a first substrate and a second substrate, and a driving method thereof. The electrophoretic material 11 contains charged microparticles 6a, 6b in a fluid dispersion medium 5, and can change the spatial distribution state of the charged microparticles 6a, 6b between the first substrate 8 and the second substrate 1. An electrophoretic display device displays images using changes in the spatial distribution state. Although in FIG. 1 , between the sub-pixel electrode 4 provided on the first substrate 8 and the common electrode 2 provided on the second substrate 1, the distribution of particles is changed vertically, but the present invention does not change the distribution of particles in the horizontal direction. The distribution of the electrophoretic display device is also very effective. This application is effective for one kind of ...

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Abstract

The invention relates to an electrophoresis for displaying intermediate brightness gray, wherein said device comprises: several pixels; one electrophoresis layer including the electrophoresis particles that swinging in the electric field; and shared electrode opposite to several pixels, to clamp the electrophoresis layer with pixels. Said pixel is formed by several sub-pixels, which have at least one couple of sub-pixels that can not be separated by straight line, and at least one couple of nearby sub-pixel has edge formed by several straight lines.

Description

technical field [0001] The present invention relates to an electrophoretic display device used in electronic paper and the like. Background technique [0002] An electrophoretic display device is a device that accommodates an electrophoretic material including a liquid dispersion medium and electrophoretic particles between a pair of electrodes, and performs display using the electrophoretic phenomenon of these electrophoretic particles in the dispersion medium. This electrophoretic display device displays desired information by controlling the amplitude, polarity, waveform, application time, frequency, and the like of a voltage applied between electrodes. For electrophoretic display devices, black-and-white two-value display is commonly used. However, if a grayscale display that can change the display brightness is implemented, image information can be displayed more finely, so its realization is highly anticipated. When performing gray scale display, conventionally, by ch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/167G09G3/20
Inventor 宫坂光敏小松友子
Owner E INK CORPORATION