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Display driving method based on liquid crystal composite electronic ink system and electrophoretic display

A display driver and electrophoretic display technology, applied in static indicators, instruments, nonlinear optics, etc., can solve the problem of bistable characteristics decline, and achieve the effect of increasing application scenarios

Active Publication Date: 2022-03-04
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the existing display device based on the liquid crystal / electrophoretic ink composite system modified by the surface alignment layer adopts the existing driving waveform, the bistability characteristics will decrease, and a liquid crystal / electrophoretic ink composite system based on the surface alignment layer modification is provided. Display driving method and electrophoretic display

Method used

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  • Display driving method based on liquid crystal composite electronic ink system and electrophoretic display
  • Display driving method based on liquid crystal composite electronic ink system and electrophoretic display
  • Display driving method based on liquid crystal composite electronic ink system and electrophoretic display

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Embodiment 1

[0066] The embodiments of the present application provide an electrophoretic display and a display driving method, and the specific steps include:

[0067] see Figure 1 to Figure 3 , figure 1 A schematic structural diagram of the electronic paper provided in the embodiment of the present application; figure 2 Schematic diagrams of the front and side surfaces of the electrophoretic display provided by the embodiments of the present application, and a single pixel of the electrophoretic display; image 3 This is a flowchart for driving an electrophoretic display provided in the embodiment of the present application. figure 1 It can be seen that the alignment layer 6 of the electronic paper of the present application is attached to the inner side of the first electrode 1 and the second electrode 2 respectively, and the white electrophoretic particles 3 , the black electrophoretic particles 4 and the liquid crystal 5 are dispersed between the first electrode 1 and the second e...

Embodiment 2

[0074] The embodiments of the present application provide an electrophoretic display and a display driving method, and the specific steps include:

[0075] The electrophoretic ink was prepared according to the method of Example 1, and the composition of the electrophoretic ink in the example of the present application was the same as that of Example 1. The electronic paper was prepared according to the method of Example 1, and the above-mentioned electrophoretic ink was sealed between the first electrode and the second electrode by the method of making the microcup in the above-mentioned Example 1 to obtain the electronic paper. Both electrodes are ITO electrodes.

[0076] An electrophoretic display is prepared, including the above-mentioned electronic paper and a control unit. The control unit in the embodiment of the present application is an existing conventional driving voltage waveform that can be applied to the electronic paper, and a voltage waveform with a preset durat...

Embodiment 3

[0080] An electrophoretic display is prepared based on the liquid crystal / electrophoretic ink composite system modified by the surface alignment layer in the embodiment of the present application, which is an electronic paper reading device that can play high frame rate animation, including:

[0081] The electrophoretic ink was prepared according to the method of Example 1, and the composition of the electrophoretic ink in the example of the present application was the same as that of Example 1. The electronic paper was prepared according to the method of Example 1, that is, the electrophoretic ink of Example 1 was sealed between the first electrode and the second electrode by using the method of making the microcup in Example 1 above to obtain electronic paper. and the second electrode are both ITO electrodes.

[0082] Ordinary electronic ink was prepared. The components were similar to the electrophoretic ink based on liquid crystal and surface alignment layer in Example 1. ...

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Abstract

The invention belongs to the technical field of electrophoretic display, and particularly relates to a display driving method based on a liquid crystal composite electronic ink system and an electrophoretic display. The display driving method comprises the following steps: the electronic paper displays no picture or an initial picture, a voltage with a preset duration, a preset polarity and a preset amplitude is applied to the electronic paper, and then the voltage is removed, so that the electronic paper displays a static picture; or, a display driving waveform is applied to the electronic paper to enable the electronic paper to display continuous pictures, and when the electronic paper ends the continuous pictures to display static pictures, the voltage with the preset duration, the preset polarity and the preset amplitude is applied to the electronic paper, and then the voltage is removed to enable the electronic paper to display the static pictures. According to the method, the technical defect that bistable characteristics are reduced due to the fact that an electrophoretic display of a liquid crystal / electrophoretic ink composite system adopts an existing driving waveform in the prior art is effectively overcome.

Description

technical field [0001] The application belongs to the technical field of electrophoretic display, and in particular relates to a display driving method and an electrophoretic display based on a liquid crystal composite electronic ink system. Background technique [0002] Electronic paper using electrophoretic display (EPD) technology has become a very important information display carrier, and has been widely used in e-book readers, electronic labels, electronic billboards, and the like. It has good bistable characteristics, almost no power consumption during static display, and is a display technology with energy saving and environmental protection characteristics. However, electrophoretic electronic paper still has a series of disadvantages, such as slow response speed. These shortcomings seriously affect the display effect of electrophoretic electronic paper and restrict the market application range. [0003] In order to solve the problem of slow response speed of ordin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34G02F1/167G02F1/1675G02F1/1676G02F1/1685
CPCG09G3/344G02F1/167G02F1/1675G02F1/1676G02F1/1685G02F2001/1678Y02D10/00
Inventor 杨柏儒曾正胡文杰刘广友杨明阳秦宗邓少芝
Owner SUN YAT SEN UNIV