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Electrophoretic display and its driving method

A technology of electrophoretic display and driving method, which is applied to static indicators, instruments, etc., and can solve problems such as blurred text, poor sharpness, and easy white edges of text

Active Publication Date: 2020-11-17
E INK HLDG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the electrophoretic display displays yellow text on a black background, white edges tend to appear on the yellow text, resulting in blurred text and poor sharpness

Method used

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  • Electrophoretic display and its driving method
  • Electrophoretic display and its driving method
  • Electrophoretic display and its driving method

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Embodiment Construction

[0035] In order to make the content of the present invention more comprehensible, the following specific embodiments are taken as examples in which the present invention can be implemented. In addition, wherever possible, elements / components / steps using the same reference numerals in the drawings and embodiments represent the same or similar parts.

[0036] figure 1 is a block diagram of an electrophoretic display according to an embodiment of the present invention. refer to figure 1 , the electrophoretic display 100 includes a display panel 110 and a driving circuit 120 . In this embodiment, the electrophoretic display 100 is a color electrophoretic display device, and has a display effect of displaying at least three colors. The display panel 110 includes a plurality of pixels, and these pixels respectively correspond to a plurality of electrophoretic units arranged in an array, wherein the electrophoretic units include electrophoretic particles of three colors. In this ...

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Abstract

An electro-phoretic display including a display panel and a driving circuit. The display panel is configured to display image frames. The driving circuit is coupled to the display panel. The driving circuit is configured to drive the display panel to display the image frames according to a driving signal. The driving signal includes a first pulse and a second pulse. A driving period of the driving signal includes a first stage, a second period and a driving stage. The first pulse is located before the driving stage, and the second pulse is located in the second period. The pulse width of the first pulse is larger than that of the second pulse. In addition, a driving method of an electro-phoretic display is also provided.

Description

technical field [0001] The invention relates to a display technology, in particular to an electrophoretic display and a driving method thereof. Background technique [0002] With the advancement of electronic technology, electrophoretic displays are widely used in various display applications and electronic devices, and the current electrophoretic displays have been developed to provide color display effects. However, general color electrophoretic displays are prone to sharpness problems caused by blurred image edges, and the traditional improvement method is to adjust the terminal voltage and time of the driving signal to adjust the position of the internally charged electrophoretic particles. However, the sharpness issue still cannot be corrected under certain environments, materials or driving conditions. For example, the electrophoretic unit of the color electrophoretic display includes white electrophoretic particles, black electrophoretic particles and colored electro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34
CPCG09G3/344
Inventor 邱振恺林峰守郑智宇
Owner E INK HLDG INC
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