Electrophoretic display and image updating method thereof

An electrophoretic display and panel technology, applied to static indicators, instruments, etc., can solve problems such as reduction and difficult specifications

Inactive Publication Date: 2012-05-16
FITIPOWER INTEGRATED TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, factors such as the thickness of the pixel, the viscosity of the content, the operating voltage, and the grayscale resolution inherently limit the minimum operating time Ts of a column electrode.
A simple estimate, if it takes

Method used

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  • Electrophoretic display and image updating method thereof
  • Electrophoretic display and image updating method thereof
  • Electrophoretic display and image updating method thereof

Examples

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Embodiment Construction

[0029] image 3 is a flow chart of updating the EPD screen according to the present invention, Figure 4 is the EPD that can perform the method. refer to image 3 and Figure 4 , step S10 receives an instruction to update the screen, and step S12 distinguishes whether to perform partial block update. When there is no need to perform partial block updating, go to step S14 , as in the prior art, the timing controller 24 controls the column driver 20 to drive all the gate scanning lines A0 to An. If partial updating is to be performed, the gate scanning lines corresponding to the local blocks to be updated are selected from the gate scanning lines A0 to An to be driven. More specifically, the timing controller 24 can know the start position (x1, y1) and the end position (x2, y2) of the partial block 26 to be updated after receiving the frame portion to be updated, and set the position y1 y2 to the column driver 20, the column driver 20 contains a decoder 28 to decode from th...

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PUM

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Abstract

The invention provides an electrophoretic display and an image updating method thereof. The electrophoretic display comprises a panel, a line driver which comprises a decoder, a row driver, a plurality of grid scanning lines which are connected between the line driver and the panel, a plurality of source scanning lines which are connected between the row driver and the panel, and a time sequence controller which is connected with the line driver and the row driver, wherein the decoder conducts decoding according to the initial position and the end position of a local block provided by the time sequence controller to obtain a grid scanning line corresponding to the local block, wherein the grid scanning line is driven by the line driver. When an image is updated, the grid scanning line corresponding to the local block which is required to be updated is driven only, so as to shorten image updating time and reduce image updating power consumption.

Description

technical field [0001] The present invention relates to an electrophoretic display (ElectroPhoretic Display, EPD), in particular to an image updating method of the EPD. Background technique [0002] EPD has a bistable state (bistability), and only needs power consumption at the moment of changing the image, so it is superior to other types of displays in some applications. However, the bistable state is also a shortcoming of EPD, making it unsuitable for displaying movies and animations that require a high update rate. Therefore, EPD is suitable for applications that require less screen changes, such as electronic paper, electronic books, electronic diaries, electronic notepads, electronic newspapers, electronic dictionaries, electronic posters, digital photo frames and other similar devices. [0003] In EPD, such as figure 1 As shown, the panel 10 has a plurality of column (or selection) electrodes 12 and a plurality of row (or data) electrodes 14, and there is a pixel 16...

Claims

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Application Information

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IPC IPC(8): G09G3/34
Inventor 魏嘉宏郭文源庄翔琮
Owner FITIPOWER INTEGRATED TECH INC
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