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Driving system for electrophoretic display

一种电泳显示器、驱动系统的技术，应用在静态指示器、仪器等方向，能够解决存储器空间大等问题，达到减少存储器空间的效果

Active Publication Date: 2016-06-29
E INK CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The memory space required to store images and look-up tables is large

Method used

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  • Driving system for electrophoretic display
  • Driving system for electrophoretic display
  • Driving system for electrophoretic display

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0113] Example 1: Sub Lookup Table

[0114] In this example there are three sub-lookup tables.

[0115] Sub Lookup Table 1 - Used to drive pixels from gray levels (G0 to G15) to the same gray level, eg, G0→G0, G1→G1, G2→G2, etc.

[0116] Sub Lookup Table 2 - Used to drive pixels from low gray levels (G0 to G7) to any of 16 gray levels, e.g., G0→G1, G5→G6, G7→G13, etc.

[0117] Sub Lookup Table 3 - Used to drive pixels from high gray levels (G8 to G15) to any of 16 gray levels, e.g., G8→G1, G11→G6, G15→G14, etc.

[0118] In this case, a set of 16 waveforms is designed for s-LUT1 and stored in s-LUT1. Regardless of the starting color state (G0 to G15), each of the 16 waveforms will drive the pixel to G0, G1, ..., G15 respectively.

[0119] Similarly, there are also 16 waveforms in s-LUT2 or s-LUT3.

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Abstract

The application relates to a driving system for an electrophoretic display. The driving system comprises a plurality of display pixels; a single image memory for storing image data; and a lookup table generator used for receiving new image data, wherein the lookup table generator generates lookup tables and graphs and a plurality of sub lookup tables based on real time comparison between the new image data and the stored image data; each sub lookup table represents a type of driving waveforms; each type includes the waveforms for driving display pixels to a color state; and the plurality of sub lookup tables are configured to provide driving voltage data for driving the electrophoretic display based on the generated lookup tables.

Description

[0001] This application is a divisional application of a patent application with an application date of August 30, 2012, application number 201210316809.6, and an invention titled "Drive System for Electrophoretic Display", the entire contents of which are hereby incorporated by reference. technical field [0002] The invention relates to drive systems for electrophoretic displays. Background technique [0003] Typically, electrophoretic displays are driven by using a look-up table that stores driving waveforms. A lookup table typically involves the use of two memories, one storing information for the current image and the other storing information for the new image (ie, the image to be driven from the current image). The look-up table is then searched for a particular pixel based on the current image information and the new image information to find the appropriate waveform for updating that pixel. [0004] The memory space required to store the image and the look-up table...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34
CPCG09G3/344G09G2340/16
Inventor 克雷格·林
Owner E INK CORPORATION