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Electrophoretic display device, method of driving electrophoretic device, and electronic apparatus

A technology of electrophoretic display and driving method, which is applied in the direction of identification device, static indicator, instrument, etc., can solve the problems of increased manufacturing cost, and achieve the effect of preventing and suppressing leakage current

Active Publication Date: 2012-03-07
E INK CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, if chemically stable and corrosion-resistant materials such as gold and platinum are used in the pixel electrodes, the reliability can be improved, but the manufacturing cost will increase.

Method used

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  • Electrophoretic display device, method of driving electrophoretic device, and electronic apparatus
  • Electrophoretic display device, method of driving electrophoretic device, and electronic apparatus
  • Electrophoretic display device, method of driving electrophoretic device, and electronic apparatus

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no. 1 Embodiment approach

[0114] Next, the electrophoretic display device 1 in the present invention will be described using the drawings.

[0115] figure 1 It is a configuration diagram of the electrophoretic display device 1 according to the 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 modulation circuit (potential control unit) 8 and a controller 10 .

[0116] In the display unit 3 , m and n pixels 2 are formed in a matrix along the Y-axis direction and the X-axis direction, respectively. The scanning line driving 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 section 3 . The data line drive circuit 7 is connected to the pixels 2 via a plurality of data lines 5 ( X1 , X2 , . . . , Xn) extending in the Y-axis direction ...

no. 2 Embodiment approach

[0263] Next, a second embodiment of the present invention will be described. The electrophoretic display device of this embodiment includes a switch circuit composed of two transistors (first and second transistors) instead of the switch circuit 35 composed of four transistors in the first embodiment. In addition, below, with regard to the electrophoretic display device of the second embodiment, a plurality of examples (first to third configuration examples) after changing the configuration will be described.

[0264] The first configuration example includes a switch circuit in which a P-MOS is used for the first transistor and an N-MOS is used for the second transistor. The second configuration example includes a switch circuit using N-MOS for both of the first and second transistors. The third configuration example includes a switch circuit using P-MOS for both the first and second transistors.

[0265] [The first configuration example]

[0266] Figure 18 It is a circui...

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Abstract

The invention provides an electrophoretic display device, its driving method and electronic device. The display portion includes pixel electrodes, an opposite electrode, a first control line and a second control line. Each of the pixel electrodes is formed in each of the pixels. The opposite electrode is opposed to the plurality of pixel electrodes through the electrophoretic element. The first control line and the second control line are connected to each of the pixels. Each of the pixels includes a TFT for driving, a SRAM, and a switch circuit. Switching of the switch circuit is performed by an output signal of the memory circuit to switch between a connected state where the pixel electrode is connected to the first control line and a connected state where the pixel electrode is connected to the second control line.

Description

technical field [0001] The present invention relates to an electrophoretic display device, a driving method of the electrophoretic display device, and electronic equipment. Background technique [0002] In order to display an image on the electrophoretic display device, a storage circuit temporarily stores an image signal through a switching element. When the image signal stored in the memory circuit is directly input to the pixel electrode and a potential is supplied to the pixel electrode, a potential difference is generated between the pixel electrode and the counter electrode. Thereby, the electrophoretic element can be driven to display an image (for example, see Patent Document 1). In addition, Patent Document 1 describes a configuration including a SRAM (Static Random Access Memory) as a storage circuit (a configuration in which a latch that holds information as a potential is built in a pixel) and a configuration including a DRAM (Dynamic Random Access Memory, Dyna...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20G09G3/34G02F1/167G09F9/37
CPCG09G2300/0857G09G3/344G09G2320/0214G09G2330/021
Inventor 前田浩下平泰裕
Owner E INK CORPORATION