CN105957476B - E-books and e-book display driving method - Google Patents

E-books and e-book display driving method Download PDF

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CN105957476B
CN105957476B CN 201610378351 CN201610378351A CN105957476B CN 105957476 B CN105957476 B CN 105957476B CN 201610378351 CN201610378351 CN 201610378351 CN 201610378351 A CN201610378351 A CN 201610378351A CN 105957476 B CN105957476 B CN 105957476B
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洪锦坤
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福州瑞芯微电子股份有限公司
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本发明提供电子书显示屏驱动方法和电子书,其特别涉及芯片内部内存和带宽小的电子书屏幕驱动。 The present invention provides a driving method of an electronic book and an electronic book display screen, in particular relates to a small internal memory and bandwidth chip electronic book screen driver. 其中驱动方法包括步骤:EPD控制器接收模式信号;若模式信号指示为无内存模式,则以设定电压刷新屏幕子区域内的所有像素,使其转换为两极端灰度值之;若模式信号指示为单内存模式,则其在上次序列性驱动后该屏幕子区域内的像素转换为两极端灰度值之,根据上次序列性驱动所转换的极端灰度值、以及输入图像中对应像素的灰度值、以及序列性驱动计数值查询目标灰度‑刷新第次‑电压值表,获得刷新电压,用该刷新电压改变屏幕子显示区域内的对应像素点,使其在设定次数的序列性驱动后转换为输入图像中对应像素的灰度值。 Wherein the driving method comprises steps of: EPD controller receives a mode signal; if the mode signal indicates the memory is no mode, places a voltage setting screen refresh all the pixels in the sub-region, it is converted to two extreme gray level values; if mode signal indicate the single memory mode, in which the sequence of the last drive in the screen pixel conversion sub-region, the extreme values ​​of the two extreme gray level grayscale values ​​according to the sequence of driving of the last converted, and an input image corresponding the gray value of a pixel, and the sequence of the target gray-driven query count value - the first refresh time - voltage value table, to obtain a fresh voltage to change the sub-screen using the display refresh voltage corresponding pixel in the region, so that the set number of converted sequence of the corresponding pixel is driven in a gray value input image. 其具有节约芯片成本的效果。 Which has the effect of saving the cost of a chip.

Description

电子书显示屏驱动方法和电子书 E-books and e-book display driving method

技术领域 FIELD

[0001]本发明涉及电子书屏幕驱动,特别是芯片内部内存较小和带宽较小的电子书屏幕驱动。 [0001] The present invention relates to an electronic book screen driver, especially the smaller chip memory and internal e-book screen driver relatively small bandwidth.

背景技术 Background technique

[0002]如果1(:需€驱动EPD,要有ETO控制器才可以,EPD控制器的原理是用当前屏显示的图像数据和正要显示的图像数据去向WAVEFORM数据查表得到驱动数据,然后再按EPD的时序发送给EPD,EPD就可以显示成指定的图像。每个像数据点用4bit,800x600的屏,一幅图像占用240000Byte,需要两幅图像,总共需要480000Byte的内存。对于支持DDR的系统这些内存不算多,但是对于不支持DDR,只有内部SRAM的系统,这些内存算非常大。要支持大分辨率EPD,就需在加大SRAM容量,芯片的成本会大大增加。 [0002] If 1 (: need € EPD driver, image data controller can have ETO, the principles of the EPD controller is displayed with the current screen and display image data was about the whereabouts WAVEFORM data look-up table driven data before sent to the EPD EPD chronologically, EPD can be displayed as the specified image. each pixel data points screen 4bit, 800x600, and an image occupation 240000Byte, you need two images, for a total 480000Byte memory for support of DDR the system memory is not that much, but that do not support DDR, SRAM only internal systems, these memory count is very large. to support high resolution EPD, on the need to increase the capacity SRAM, chip cost will be greatly increased.

发明内容 SUMMARY

[0003]以下给出对一个或更多个方面的简化概述以力图提供对此类方面的基本理解。 [0003] The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. 此概述不是所有构想到的方面的详尽综览,并且既非旨在指认出所有方面的关键性或决定性要素亦非试图界定任何或所有方面的范围。 This summary is not all contemplated aspects of an extensive overview, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. 其唯一的目的是要以简化形式给出一个或更多个方面的一些概念以作为稍后给出的更加具体的说明之序。 Its sole purpose is to present a simplified form as a sequence more detailed description that is presented later some concepts of one or more aspects.

[0004]本发明提供一种电子书显示屏驱动方法和电子书解决电子书芯片成本过高的问题。 [0004] The present invention provides a method of driving an electronic book display screen and e-chip solution ebook high cost.

[0005]为实现上述目的,发明人提供了电子书显示屏驱动方法,该显示屏具有矩阵形式排列的复数子像素,该方法包括步骤: [0005] To achieve the above object, the invention provides a method of driving an electronic book display screen, the display screen having a plurality of sub-pixels arranged in a matrix, the method comprising the steps of:

[0006] Ero控制器接收模式信号; [0006] Ero controller receives a mode signal;

[0007]若模式信号指示为无内存模式,则以设定电压刷新屏幕子区域内的所有像素,使其转换为两极端灰度值之一; [0007] When the mode signal indicates the memory is no mode, places a voltage setting screen refresh all the pixels in the sub-regions, to convert it into one of two extreme gray level value;

[0008]若模式信号指示为单一内存模式,则其在上一次序列性驱动后该屏幕子区域内的像素转换为两极端灰度值之一,根据上一次序列性驱动所转换的极端灰度值、以及输入图像中对应像素的灰度值、以及序列性驱动计数值查询目标灰度-刷新第次-电压值表,获得刷新电压,用该刷新电压改变屏幕子显示区域内的对应像素点,使其在设定次数的序列性驱动后转换为输入图像中对应像素的灰度值。 [0008] When the mode signal indicates a single memory mode, it converts the pixel at a sub-region within the screen after the sequential driving of one of the two extreme gray level value, in accordance with the sequence of the extreme gray level drive time converted value, the input image and the corresponding pixel gray value, and the count value of the sequence of the driving target gray query - the first refresh time - voltage value table, to obtain a fresh voltage to change the sub-screen using the display refresh voltage corresponding pixel in the region , so that the input image is converted to the corresponding pixel gray value in the sequence after setting the number of driving.

[0009]进一步,在无内存模式时,在设定次数的序列性驱动内,根据序列性驱动的计数值查询目标灰度-刷新第次-电压值表,获得设定电压,用该设定电压刷新屏幕子区域内的所有像素,使屏幕子区域内的所有像素在设定次数的序列性驱动内逐渐转换为两极端灰度值之一。 [0009] Further, in the absence of memory model, the sequence of driving in the set number, the count value of the sequence of target gradation driving query - the first refresh time - voltage value table, the set voltage, set by the voltage screen refresh all the pixels in the sub-region, so that all pixels within the sub-area of ​​the screen is gradually converted into one of the two extremes of the gray values ​​within the sequence number of the drive set.

[0010]进一步,若模式信号指示为双内存模式,则根据目标像素的当前灰度值、以及输入图像中对应像素的灰度值、以及序列性驱动计数值查询初始灰度-目标灰度-刷新第次-电压值表,获得刷新电压,用该刷新电压改变屏幕子显示区域内的对应像素点,使其在设定次数的序列性驱动后转换为输入图像中对应像素的灰度值;其中目标像素的位置与输入图像中对应像素的位置对应。 [0010] Further, if the mode signal indicates the memory is dual-mode, according to the current query initial gray gradation value of the target pixel and a corresponding pixel in the input image gray value, and the count value of the sequence of the drive - the target gray - the first refresh time - voltage value table, to obtain a fresh voltage to change the sub-screen using the display refresh voltage corresponding pixel in the region, so that after a set number of sequences corresponding to the pixel driving converted gradation value in the input image; wherein the pixel position corresponding to the position of the input image corresponding to the target pixel.

[0011]进一步,该显示屏为多边形、圆形或椭圆形。 [0011] Further, the display screen of polygonal, circular or elliptical.

[0012]进一步,若配置为低带宽模式,则CPU根据当前配置,发送无内存模式的模式信号, 并在设定次数的序列性驱动后,发送单一内存模式的模式信号。 [0012] Further, when configured for low bandwidth mode, the CPU based on the current configuration, no signal transmission pattern memory mode, and the driving sequence of the set number, the memory transmission mode a single mode signal.

[0013]进一步,输入的图像为压缩数据,压缩数据使用的压缩方法为:输入原始图像数据,将输入原始图像数据按照设定长度分组,按分组的序列顺序逐一处理原始图像数据,当出现两个及两个以上连续小组的数据相同时,输出两个这样的小组,该小组的数据为上述连续小组的数据,并且输出的一个统计小组,该统计小组中的数值为在原始图像数据中上述连续小组中的小组个数减去2;若某一小组与其左右连续的小组的数据不同,则直接输出该小组; [0013] Further, the compressed image data input, the data compression method used for the compression: the input original image data, the original image data according to the set input packet length, packet order of the sequence of processing original image data one by one, when there is two and a group of two or more consecutive data are the same, the output of two such groups, the group of data of the continuous data group, and a group count output, the count value of the group is the above original image data the number of consecutive team group minus 2; if a certain group about their different successive group of data, the direct output of the group;

[00M]在“根据上一次序列性驱动所转换的极端灰度值、以及输入图像中对应像素的灰度值、以及序列性驱动计数值查询目标灰度-刷新第次-电压值表”之前还包括步骤:检测压缩后的图像数据,若检测到统计小组,则根据统计小组中指示的连续小组中的小组个数还原连续小组。 [00M] "corresponding to the pixel gray value, and the count value of the sequence of driving the query terminal target gray gradation value of a driving sequence in accordance with the converted, and an input image, - the first refresh time - voltage value table" before further comprising the step of: detecting the compressed image data, upon detection statistics group, the reduction of the number of consecutive group the group statistics consecutive group in the group indicated.

[0015] 进一步,所述设定长度为lbyte或2byte。 [0015] Further, the length is set or lbyte 2byte.

[0016]进一步,当CPU判断图像数据为文本图像数据时,对其使用权利要求6所述的压缩方法压缩图像数据,并将压缩后的图像数据发送到EPD控制器。 [0016] Further, when the CPU determines whether the image data is text image data compression method for its use according to claim 6 compressed image data, and transmits the compressed image data to the EPD controller.

[0017]进一步,所述“CPU判断图像数据为文本图像数据”为随机选择图像数据的至少2列或2行作为样本数据,将样本图像数据按照设定长度分组,若样本数据中含4个以上小组的连续小组的个数大于含有2个小组的连续小组的个数,且样本数据中所有的连续小组所含的小组个数大于样本数据的分组数据的30 %,则判断图像数据为文本图像数据。 [0017] Further, the "CPU determines whether the image data is text image data" is at least two rows or two randomly selected image data as the sample data, the sample image data according to the set length of the packet, if the data sample containing 4 30% or more of the number of consecutive group-containing group is larger than the number of consecutive group of group 2, and the number of teams in all continuous sample data group is greater than the sample data contained in the data packet, it is determined that the image data is text image data.

[0018]发明人提供一种电子书,该电子书包括显示屏、Ero控制器、CRJ;显示屏具有矩阵形式排列的复数子像素,其中 [0018] The inventors have provided an electronic book, the electronic book comprising a display screen, the controller Ero, CRJ; display having a plurality of sub-pixels arranged in a matrix, wherein

[0019] EPD控制器连接显示屏,CPU连接EPD控制器; [0019] EPD controller connected to the display, CPU EPD controller is connected;

[0020] EPD控制器用于接收模式信号; [0020] EPD controller for receiving a mode signal;

[0021]若模式信号指示为无内存模式,则以设定电压刷新屏幕子区域内的所有像素,使其转换为两极端灰度值之一; [0021] When the mode signal indicates the memory is no mode, places a voltage setting screen refresh all the pixels in the sub-regions, to convert it into one of two extreme gray level value;

[0022]若模式信号指示为单一内存模式,则其在上一次序列性驱动后该屏幕子区域内的像素转换为两极端灰度值之一,根据上一次序列性驱动所转换的极端灰度值、以及输入图像中对应像素的灰度值、以及序列性驱动计数值查询目标灰度-刷新第次-电压值表,获得刷新电压,用该刷新电压改变屏幕子显示区域内的对应像素点,使其在设定次数的序列性驱动后转换为输入图像中对应像素的灰度值。 [0022] When the mode signal indicates a single memory mode, it converts the pixel at a sub-region within the screen after the sequential driving of one of the two extreme gray level value, in accordance with the sequence of the extreme gray level drive time converted value, the input image and the corresponding pixel gray value, and the count value of the sequence of the driving target gray query - the first refresh time - voltage value table, to obtain a fresh voltage to change the sub-screen using the display refresh voltage corresponding pixel in the region , so that the input image is converted to the corresponding pixel gray value in the sequence after setting the number of driving.

[0023]进一步,EPD控制器用于在无内存模式时,在设定次数的序列性驱动内,根据序列性驱动的计数值查询目标灰度-刷新第次-电压值表,获得设定电压,用该设定电压刷新屏幕子区域内的所有像素,使屏幕子区域内的所有像素在设定次数的序列性驱动内逐渐转换为两极端灰度值之一。 [0023] Further, in the absence of an EPD controller to the memory mode, the sequence of driving in the set number, the target gray query sequence count value of the drive - the first refresh time - voltage value table, the set voltage, refresh all the pixels within the screen of the sub-region with a set voltage, so that all pixels within the sub-area of ​​the screen is gradually converted into one of the two extremes of the gray values ​​within the sequence number of the drive set.

[0024]进一步,Ero控制器用于若模式信号指示为双内存模式,则根据目标像素的当前灰度值、以及输入图像中对应像素的灰度值、以及序列性驱动计数值查询初始灰度-目标灰度-刷新第次-电压值表,获得刷新电压,用该刷新电压改变屏幕子显示区域内的对应像素点,使其在设定次数的序列性驱动后转换为输入图像中对应像素的灰度值;其中目标像素的位置与输入图像中对应像素的位置对应。 [0024] Further, a controller for Ero signal indicates if the dual mode memory mode, according to the current query initial gray gradation value of the target pixel, the input image and the corresponding pixel gray value, and the count value of the sequence of drive - target gray - first refresh time - voltage value table, to obtain a fresh voltage to change the sub-screen using the display refresh voltage corresponding pixel in the region, so that after a set number of the drive sequence is converted into the corresponding pixel of the input image gray value; wherein the pixel positions corresponding to the position of the input image corresponding to the target pixel.

[0025]进一步,其显示屏为多边形、圆形或椭圆形。 [0025] Further, the display screen thereof is polygonal, circular or elliptical.

[0026]进一步,所述CPU用于当配置为低带宽模式时,CPU根据当前配置,发送无内存模式的模式信号,并在设定次数的序列性驱动后,发送单一内存模式的模式信号。 [0026] Further, when the CPU is used to configure the low bandwidth mode, CPU configuration according to the current signal, a signal transmission mode without memory mode, and the driving sequence of the set number, the memory transmission mode a single mode.

[0027]进一步,所述CHJ用于向EPD控制器输出压缩数据,压缩数据使用的压缩方法为:输入原始图像数据,将输入原始图像按照设定长度分组,按分组的序列顺序逐一处理原始图像数据,当出现两个及两个以上连续小组的数据相同时,输出两个这样的小组,该小组的数据为上述连续小组的数据,并且输出的一个统计小组,该统计小组中的数值为在原始图像数据中上述连续小组中的小组个数减去2;若某一小组与其左右连续的小组的数据不同,则直接输出该小组; [0027] Further, the EPD controller CHJ compressed data for output to the data compression method is used for compression: the input original image data, the original image according to the set input packet length, packet order of the sequence of processing an original image one by one data, when the data for two or more consecutive occurrence of the same group, the output of two such groups, the group of data of the continuous data group, and a group count output, the count value of the group is in the original image data group number of the group of the continuous minus 2; if a certain group about their different successive group of data, the direct output of the group;

[0028]在“根据上一次序列性驱动所转换的极端灰度值、以及输入图像中对应像素的灰度值、以及序列性驱动计数值查询目标灰度-刷新第次-电压值表”之前EPD控制器还用于: 检测压缩后的图像数据,若检测到统计小组,则根据统计小组中指示的连续小组中的小组个数还原连续小组。 [0028] "corresponding to the pixel gray value, and the count value of the sequence of driving the query terminal target gray gradation value of a driving sequence in accordance with the converted, and an input image, - the first refresh time - voltage value table" before EPD controller is further configured to: detecting the compressed image data, upon detection statistics group, the reduction of the number of consecutive group the group statistics consecutive group in the group indicated.

[0029] 进一步,所述设定长度为lbyte或2byte。 [0029] Further, the length is set or lbyte 2byte.

[0030]进一步,CPU用于当判断图像数据为文本图像数据时,对其使用权利要求6所述的压缩方法压缩图像数据,并将压缩后的图像数据发送到EPD控制器。 [0030] Further, when the CPU determines whether the image data for the text image data, the compression method of its use according to claim 6 compressed image data, and transmits the compressed image data to the EPD controller.

[0031]进一步,CPU用于随机选择图像数据的至少2列或2行作为样本数据,将样本图像数据按照设定长度分组,若样本数据中含4个以上小组的连续小组的个数大于含有2个小组的连续小组的个数,且样本数据中所有的连续小组所含的小组个数大于样本数据的分组数据的30%,则判断图像数据为文本图像数据。 [0031] Further, the CPU of the image data for randomly selecting at least two rows or 2 as the sample data, the sample image data according to a set length packet, if the number of consecutive sample data group containing 4 or more greater than the group containing 30% of the number of consecutive number of Sub Sub-group 2, and the sample data contained in the group in all continuous sample data is greater than the data packet, it is determined that the image data of the image data as text.

[0032]区别于现有技术,上述技术方案中,目标灰度-刷新第次-电压值表为3元表,对于某一像素,用该表可以根据该像素的目标灰度、刷新第次来获得第N次序列性驱动时使用的刷新电压(值)是多少。 [0032] distinguished from the prior art, the above technical solution, the target gray - first refresh time - 3-membered voltage value table table, for a certain pixel, with the gradation of the table according to the target pixel, the second sub refresh a refresh voltage (value) used when obtaining the N-th sequential drive is. 刷新第次即第几次序列性驱动。 Refresh the first time that is many times the sequence of the drive. 对于单一内存模式而言。 For a single memory mode. 相比于现有的的屏幕刷新方法需要根据初始灰度值、目标灰度值、刷新第次来查询刷新所需的电压,采用上述方法,其可节约用于表的存储空间。 Compared to the conventional screen refresh method requires the initial tone value, the target tone value, the refresh times of the voltage required to refresh the query, using the above method, which can save storage space for the table. 上述技术方案在低端便携电子纸设备上具有一定的优势。 Above technical solution has certain advantages in low-end portable electronic paper device. 上述目标灰度-刷新第次-电压值表存储在EPD控制器的静态存储器(SRAM)中,通过减少该表的大小从而节约减少的SRAM的开销,从而降低芯片成本,在另一方面也使得相同大小的SRAM可以支持更大的电子书显示屏。 Above target gray - Refresh of times - a static voltage value table stored in the memory of the EPD controller (SRAM) by reducing the size of the table is reduced thereby saving the cost of an SRAM, reducing the cost of the chip, on the other hand also makes the SRAM of the same size can support larger screens for electronic books. 上述技术方案中内存中不需要同时不用存储上一帧图像数据,从而节约了内存消耗,并且不需要同时获得上一帧图像数据,从而节约了数据处理带宽和处理速度,提高显示速度。 In the above technical solution does not need to simultaneously without memory storage on an image data, thus saving memory consumption, and does not need the same time to obtain an image data, thereby saving bandwidth and processing speed of data processing, to improve the display speed. 可以理解的是,上述目标灰度-刷新第次-电压值表可以是初始灰度-目标灰度-刷新第次-电压值表的子表。 It will be appreciated that the above target gray - first refresh time - voltage may be initial gray value table - target gray - first refresh time - voltage value table of the sub table.

[0033]为能达成前述及相关目的,这一个或更多个方面包括在下文中充分描述并在所附权利要求中特别指出的特征。 [0033] To the accomplishment of the foregoing and related ends, the one or more aspects comprise fully described and particularly pointed out in the appended claims, the features hereinafter. 以下描述和附图详细阐述了这一个或更多个方面的某些说明性特征。 Following description and drawings set forth in detail certain illustrative features of the one or more aspects. 但是,这些特征仅仅是指示了可采用各种方面的原理的各种方式中的若干种,并且本描述旨在涵盖所有此类方面及其等效方面。 However, these features are merely indicative of a few of the various ways the principles of various aspects may be employed, and this description is intended to include all such aspects and their equivalents.

附图说明 BRIEF DESCRIPTION

[0034] 以下将结合附图来描述所公开的方面,提供附图是为了说明而非限定所公开的方面,附图中相似的标号标示相似要素,并且在其中: [0034] Here will be described in conjunction with the disclosed aspects drawings, figures are provided to illustrate and not to limit the disclosed aspects, wherein like reference numerals denote like elements, and in which:

[0035] 图1为具体实施方式所述的EPD控制器; [0035] FIG. 1 is a specific embodiment of the EPD controller of;

[0036] 图2为另一具体实施方式所述的EPD控制器。 [0036] Figure 2 is another particular embodiment of the EPD controller.

具体实施方式 detailed description

[0037]为详细说明技术方案的技术内容、构造特征、所实现目的及效果,以下结合具体实施例并配合附图详予说明。 [0037] The technical content of the technical solutions described in detail, structural features, objects and effects achieved by the following embodiments and with reference to specific embodiments in detail with reference to FIG. 在以下描述中,出于解释目的阐述了众多的具体细节以提供对一个或更多个方面的透彻理解。 In the following description, for purposes of explanation, numerous specific details are set forth to provide a thorough understanding of one or more aspects. 但是显而易见的是,没有这些具体细节也可实践此类方面。 It is obvious that without these specific details such aspects may be practiced. [0038] 首字母缩写列表 [0038] acronym list

[0039] EPD:电子书显示器(Electronic Paper Display) [0039] EPD: an electronic book display (Electronic Paper Display)

[0040]本文提供一种电子书显示屏驱动方法显示屏具有矩阵形式排列的复数子像素,下述方法中的无内存模式、单一内存模式、双内存模式可以分别理解为第一模式、第二模式、 第三模式;该方法包括步骤: [0040] Provided herein is a method of driving an electronic book display screen having a plurality of sub-pixels arranged in a matrix, a method of non-memory model, a single memory mode, dual memory mode to the first mode, respectively, can be appreciated, the second mode, the third mode; the method comprising the steps of:

[0041] EPD控制器接收模式信号; [0041] EPD controller receives a mode signal;

[0042]若模式信号指示为无内存模式,则以设定电压刷新屏幕子区域内的所有像素,使其转换为两极端灰度值之一; [0042] When the mode signal indicates the memory is no mode, places a voltage setting screen refresh all the pixels in the sub-regions, to convert it into one of two extreme gray level value;

[0043]极端灰度值只黑或白,即灰度值分别为#FFF、#000。 [0043] Only extreme black or white gray-scale values, i.e., gradation values ​​were # FFF, # 000. 不同电子书显示屏的上述设定电压可以是不同,对于某一具体的电子书显示屏,用于刷新显示屏中的像素,使该像素变为极端灰度值的电压是有一定范围内的,即设定电压只要落入该范围内即可将显示器中的像素刷新为黑或白。 The setting of voltages of different e-book screen may be different, for a particular electronic book display pixels used to refresh the display, so that the terminal voltage becomes the pixel gray scale value is within a certain range , i.e., as long as the voltage is set to fall within the scope of the pixels in the display refresh is black or white. 在上述电压范围内选择一电压值作为设定电压,并存储与存储器或寄存器中,在物内存模式时,从存储器或寄存器中读取该值,用于将显示屏幕刷新为白或黑。 It is selecting a voltage range of the voltage values ​​within a predetermined voltage, and stores the memory or register, when the object pattern memory, reads the value from a register or memory, for displaying white or black screen refresh. [0044]若模式信号指示为单一内存模式,则其在上一次序列性驱动后该屏幕子区域内的像素转换为两极端灰度值之一,根据上一次序列性驱动所转换的极端灰度值、以及输入图像中对应像素的灰度值、以及序列性驱动计数值查询目标灰度-刷新第次-电压值表,获得刷新电压,用该刷新电压改变屏幕子显示区域内的对应像素点,使其在设定次数的序列性驱动后转换为输入图像中对应像素的灰度值。 [0044] When the mode signal indicates a single memory mode, it converts the pixel at a sub-region within the screen after the sequential driving of one of the two extreme gray level value of the first extreme gray level drive sequence according to the converted value, the input image and the corresponding pixel gray value, and the sequence of target gradation driving query count value - the first refresh time - voltage value table, to obtain a fresh voltage to change the sub-screen using the display refresh voltage corresponding pixel in the region , so that the input image is converted to the corresponding pixel gray value in the sequence after setting the number of driving.

[0045]由多个序列性驱动构成一个刷新周期,即电子书显示屏切换显示画面,是经历过多个序列性驱动完成的。 [0045] driven by the plurality of sequences constituting a refresh cycle, i.e., to switch the display screens for electronic books, a plurality of sequential driving experienced complete.

[0046]上述方法中,目标灰度-刷新第次-电压值表为3元表。 [0046] The above-described method, the target gray - first refresh time - voltage value table 3 of primitives. 对于某一像素,用该表可以根据该像素的目标灰度、刷新第次来获得第N次序列性驱动时使用的刷新电压(值)是多少。 For certain pixel, with the table of the gradation according to the target pixel, the refresh times of the refresh voltage is obtained when using the N-th sequential driving (value) is. 刷新第次即第几次序列性驱动。 Refresh the first time that is many times the sequence of the drive. 对于单一内存模式而言。 For a single memory mode. 相比于现有的的屏幕刷新方法需要根据初始灰度值、目标灰度值、刷新第次来查询刷新所需的电压,采用上述方法,其可节约用于表的存储空间。 Compared to the conventional screen refresh method requires the initial tone value, the target tone value, the refresh times of the voltage required to refresh the query, using the above method, which can save storage space for the table. 上述技术方案在低端便携电子纸设备上具有一定的优势。 Above technical solution has certain advantages in low-end portable electronic paper device. 上述目标灰度-刷新第次-电压值表存储在EPD控制器的静态存储器(SRAM)中,通过减少该表的大小从而节约减少的SRAM的开销,从而降低芯片成本,在另一方面也使得相同大小的SRAM可以支持更大的电子书显示屏。 Above target gray - Refresh of times - a static voltage value table stored in the memory of the EPD controller (SRAM) by reducing the size of the table is reduced thereby saving the cost of an SRAM, reducing the cost of the chip, on the other hand also makes the SRAM of the same size can support larger screens for electronic books. 上述技术方案中内存中不需要同时不用存储上一帧图像数据, 从miTi约/内存消耗,并且不需要同时获得上一帧图像数据,从而节约了数据处理带宽和处理速度,提高显示速度。 In the above technical solution does not need to simultaneously without memory storage on an image data, and does not require the same time to obtain an image from data about miTi / memory consumption, thereby saving bandwidth and processing speed of data processing, to improve the display speed. 可以理解的是,上述目标灰度-刷新第次-电压值表可以是初始灰度-目标灰度-刷新第次-电压值表的子表。 It will be appreciated that the above target gray - first refresh time - voltage may be initial gray value table - target gray - first refresh time - voltage value table of the sub table.

[0047] 在无内存検式时,在设走次数的序列性驱动内,根据序列性驱动的计数值查询目标灰刷新第次-电压值表,获得设定电压,用该设定电压刷新屏幕子区域内的所有像素, 使屏幕子区域内的所有像素在设定次数的序列性驱动内逐渐转换为两极端灰度值之一。 [0047] In the absence of memory ken formula, provided within the sequence of driving down times, the count value of the sequence of driving times of refresh querying the target gray - voltage value table, the set voltage, the setting voltage to refresh the screen with all pixels within the sub-region, so that all pixels within the sub-area of ​​the screen is gradually converted into one of the two extremes of the gray values ​​within the sequence number of the drive set.

[0048] 在一具体实施例中可以是设定经过5次序列性驱动后,切换显示图像;对于显示屏中的像素,在无内存模式中,其目标灰度为极端灰度值#FFF,在第丨次到第5次序列性驱动时,分别查询目标灰度-刷新第次-电压值表,获得对应第n次的序列性驱动对应的设定电压,并通过对屏幕子区域内的所有像素施以该设定电压转换屏幕中的像素对应的灰度值, 从而达到逐步转换的的目的,减少由于单次电压值过高,导致电子书屏幕的损坏。 [0048] In a particular embodiment, may be set to five times through sequential drive, display images are switched; for pixel display, memory mode, without which the target gray gradation value #FFF extreme, in the first to fifth sub-Shu sequential driving, respectively, the target gray query - the first refresh time - voltage value table, to obtain a corresponding sequence of setting the drive voltage corresponding to the n-th, through the screen and the sub-region All the pixels corresponding to the pixels subjected to the gradation value of the voltage conversion setting screen, so as to achieve a gradual transition, reduce the value of a single high voltage, resulting in damage to the e-book screen.

[0049]若模式信号指示为双内存模式,贝帳据目标像素的当前灰度值、以及输入图像中对应像素的灰度值、以及序列性驱动计数值查询初始灰度-目标灰度-刷新第次-电压值表, 获得刷新电压,用该刷新电压改变屏幕子显示区域内的对应像素点,使其在设定次数的序列性驱动后转换为输入图像中对应像素的灰度值;其中目标像素的位置与输入图像中对应像素的位置对应。 [0049] When the mode signal indicates a dual memory mode, shellfish current account according to the gradation value of the target pixel, the input image and the corresponding pixel gray value, and the count value of the sequence of query driving initial gray - target gray - Refresh the first time - voltage value table, to obtain a fresh voltage to change the sub-screen using the display refresh voltage corresponding pixel in the region, so that the conversion sequence after a set number of driving corresponding pixels in the input image gray value; wherein position corresponding to the target pixel in the input image in the corresponding pixels. 在双内存模式中,根据上一帧图像和下一帧图像对应像素的灰度值,查询上述表获得需要对对应像素施加的电压。 In the dual mode memory, according to the gradation value of the corresponding pixel in the previous frame image and the next frame image, the query in Table obtain a voltage applied to a pixel corresponding to the needs. 通过设定次数的序列性驱动后,显示器转换为下一帧图像。 By setting the sequence number of the drive, the display shifts to the next frame.

[0050]可以理解的是本文中的设定次数,即可以是设定的常量,也可以是根据图像中像素计算出的,或还可以根据上一帧图像和下一帧图像计算出的。 [0050] It will be appreciated that the set number of times herein, i.e., may be set constant or may be calculated based on the image pixels, or may also be calculated based on the previous frame image and the next frame image.

[0051]例如其可以是分别计算上一帧图像的的两个最大灰度值A和最小灰度值A、下一帧图像的最大灰度值B和最小灰度值B,分别计算下面两队的值:|最大灰度值A-最小灰度值B| 与I最大灰度值B-最小灰度值A |,选取其中值最大的一组,将该组的最大灰度值作为初始灰度,将最小灰度值作为目标灰度,查询初始灰度-目标灰度-序列驱动次数表,以获取需要经过的序列性驱动的次数。 [0051] which may be, for example, calculate an image of the two maximum grayscale value A and the minimum grayscale value A, the maximum gradation value B of a next frame image and the minimum grayscale value B, respectively, calculates the following two Force values: | maximum gradation value A- minimum grayscale value B | I maximum gradation value and the minimum grayscale value B- a |, wherein selecting a set of maximum values, the maximum gradation value set as an initial gradation, the minimum grayscale value as the target gradation, the gradation initial query - target gray - sequence number of driving table, to obtain the required number of times through the sequence of driving. 上述显示屏幕可以是多边形指的是,显示屏幕由像素点组成,像素点以规则的阵列形式排列,显示屏边缘可以是长方形、正方形、菱形、六角形、圆形或椭圆形等。 The display screen may be polygonal refers to a display screen by the pixel dots, pixels are arranged in a regular array, the edge of the screen can be rectangular, square, diamond, hexagonal, circular or elliptical and the like.

[0052]在一些具体的实施例中,若配置为低带宽模式,贝1JCPU根据当前配置,发送无内存模式的模式信号,并在设定次数的序列性驱动后,发送单一内存模式的模式信号,从而在切换上一帧图像和下一帧图像时使用最小的带宽。 [0052] In some embodiments, when configured for low bandwidth mode, according to the current configuration 1JCPU shell, no signal transmission pattern memory mode, and the driving sequence of the set number, the memory transmission mode a single mode signal , thereby using the smallest bandwidth upon switching the one image and the next frame.

[0053]输入的图像数据为压缩数据,压缩数据使用的压缩方法为:输入原始图像数据,将输入原始图像数据按照设定长度分组,按分组的序列顺序逐一处理原始图像数据,当出现两个及两个以上连续小组的数据相同时,输出两个这样的小组,该小组的数据为上述连续小组的数据,并且输出的一个统计小组,该统计小组中的数值为在原始图像数据中上述连续小组中的小组个数减去2;若某一小组与其左右连续的小组的数据不同,则直接输出该小组; [0053] The image data input to the data compression, the data compression method used for the compression: the input original image data, the original image data according to the set input packet length, packet order of the sequence of processing original image data one by one, when there are two group and two or more consecutive data are the same, the output of two such groups, the group of data of the continuous data group, and a group count output, the count value of the group of the continuous data in the original image Sub-group minus the number 2; about their different group if a group of consecutive data, the direct output of the group;

[0054]例如原始数据为0x55,0x55,0x55,0x55,0x55,0x55,0x11,0x33,0x33,0x44 压缩后的数据为0x55,0x55,0x04,0x11,0x33,0x33,0x00,0x44,其中lbyte 数据为一组,压缩后的数据中带下划线的小组为统计小组,其值代表原始数据中连续小组中的小组个数为个数。 [0054] for example, raw data is compressed data 0x55,0x55,0x55,0x55,0x55,0x55,0x11,0x33,0x33,0x44 0x55,0x55,0x04,0x11,0x33,0x33,0x00,0x44, wherein the data lbyte as a group, the group data after compression underlined statistical group which represents the group number of the original data for the number of consecutive team.

[0055]在“根据上一次序列性驱动所转换的极端灰度值、以及输入图像中对应像素的灰度值、以及序列性驱动计数值查询目标灰度-刷新第次-电压值表”之前还包括步骤:检测压缩后的图像数据,若检测到统计小组,则根据统计小组中指示的连续小组中的小组个数还原连续小组。 [0055] "corresponding to the pixel gray value, and the count value of the sequence of driving the query terminal target gray gradation value of a driving sequence in accordance with the converted, and an input image, - the first refresh time - voltage value table" before further comprising the step of: detecting the compressed image data, upon detection statistics group, the reduction of the number of consecutive group the group statistics consecutive group in the group indicated. 即在使用图像数据查表之前,先对数据进行对应的解压。 I.e., the image data before using the look-up table, the data corresponding to the first decompression. 通过上述压缩方法降低图像数据消耗的内存,从而在内存资源较少的情况下,获得 Reducing memory consumption of the image data by the compression method, whereby in the case of less memory resources, access

[0056]在本文的一个具体实施例中,参考图2,EPD控制器包括DMA,SRAM,解码器1、解码器2:FIF01-FIR)4,查表器,时序发生器,时序发生器以及一系列寄存器;其中SRAM用于存储目标灰度-刷新第次-电压值表;DMA用于存取内存中图像数据,将内存中的图像按搬运到EPD 控制器的FIFO中,以供EPD控制器处理。 [0056] In one specific embodiment herein, referring to FIG. 2, EPD controller including DMA, SRAM, decoder 1, decoder 2: FIF01-FIR) 4, look-up table, a timing generator, a timing generator, and a series of registers; wherein target gray SRAM for storing - a first refresh time - voltage value table; FIFO DMA for accessing the image data in the memory, the memory image conveyed by the EPD controller, for controlling EPD processing. 时序发生器用于将FIF04中的电压值应用于刷新电子书墨水屏中的像素; A timing generator for FIF04 voltage value applied to the electronic book refresh ink screen pixels;

[0057] 解码器1的处理流程如下: Process flow [0057] decoder 1 as follows:

[0058] n、判断启动标志位,如果为1执行第12步,如果为0,计数器A置为0,执行第11步。 [0058] n, it is determined to start flag is 1 if the implementation of step 12, if it is 0, the counter is set to 0 A, to step 11. [0059] 12、判断直通模式标志位,如果为丨执行第21步,如果为0执行第31步。 [0059] 12, through mode determination flag, if step 21 is performed Shu, if the implementation of step 31 is zero.

[0060] 21、判断FIF01和FIF〇3状态,如果FIFOO为非空状态且FIF03为非满状态,从FIF01 中读出数据然后写入到FIF03中,执行第11步,否则,执行第丨丨步。 [0060] 21, and determines FIF01 FIF〇3 state, if the non-empty state, and FIF03 FIFOO non-full state, and then data is read from FIF01 written into FIF03 in step 11. Otherwise, execution of Shushu step.

[0061] 31、判断FIF01和FIF03状态,如果FIF00为非空状态且FITO3为非满状态,执行第32 步,否则,执行第11步。 [0061] 31, and determines FIF01 FIF03 state, step 11. If the non-empty state, and FITO3 FIF00 non-full state, to step 32, otherwise execution.

[0062] 32、判断计数器A,等于0执行41,等于1执行42,等于2执行43。 [0062] 32, it determines whether the counter A, 41 perform equal to 0, equal to 42 1 perform equal to 43 2 perform.

[0063] 41、从FIF01中读出数据,把数据存在寄存器A中并写到FIF03中,计数器A置为1,执行31步。 [0063] 41, the data is read from FIF01, the presence of the data register A and writes FIF03, the counter A is set to 1, step 31 performs.

[0064] 42、从FIF01中读出数据,判断该数据是否与寄存器A的数据相等,如果是,把数据写到FIF03中,计数器A置为2,执行:31步。 [0064] 42, read from FIF01, it is determined whether the data A is equal to the data register, and if so, to write data FIF03, the counter A is set to 2, performing: step 31. 如果不是,把数据存在寄存器A中并写到FIF03中, 执行31步。 If not, the data written in the registers A and FIF03, perform step 31.

[0065] 43、从FIF01中读出数据存到计数器B,执行44步。 [0065] 43, the stored data is read from the counter FIF01 B, to step 44.

[0066] 44、判断计数器B等于0,如果是,计数器A置为0,执行31步,如果不是,发送寄存器A 的数据写到FIF03中,计数器B累减1,执行44步。 [0066] 44, it determines whether the counter B is equal to 0. If yes, the counter A is set to 0, the step 31, if not, the data transmission FIF03 register A is written, the counter B is incremented after 1, perform step 44.

[0067]优选的设定长度为显示器可支持的灰度级对应,例如对于16级灰度的eink屏,其用于分组的数据长度可以是4bit的倍数,例如4bit、lbyte、1.5byte、2byte等,优选的所述设定长度为lbyte或2byte。 [0067] Preferably the length is set to display the corresponding gray level supported, for example, 16 shades of gray eink screen for the data length of the packet may be a multiple 4bit, e.g. 4bit, lbyte, 1.5byte, 2byte and the like, it is preferable to set the length of lbyte or 2byte.

[0068]当CPU判断图像数据为文本图像数据时,对其使用上述压缩方法压缩图像数据,并将压缩后的图像数据发送到EPD控制器。 [0068] When the CPU determines whether the image data is text image data, the compression method of its use compressed image data, and transmits the compressed image data to the EPD controller.

[0069]所述“CPU判断图像数据为文本图像数据”为随机选择图像数据的至少2列或2行作为样本数据,将样本图像数据按照设定长度分组,若样本数据中含4个以上小组的连续小组的个数大于含有2个小组的连续小组的个数,且样本数据中所有的连续小组所含的小组个数大于样本数据的分组数据的30%,则判断图像数据为文本图像数据。 [0069] The "CPU determines whether the image data is text image data" is at least two rows or two randomly selected image data as the sample data, the sample image data according to the set length of the packet, if the sample data containing more than four groups 30% of the number larger than the number of consecutive group containing 2 groups of consecutive group, and the group number of the sample data contained in all of the successive group of sample data is greater than the data packet, it is determined that the image data of the image data as text .

[0070] 本文还提供一种电子书的技术方案,用于实现上述电子书显示屏驱动方法,该电子书包括显亦屏、EPD控制器、CPU;显75屏具有矩阵形式排列的复数子像素,参见图1和图2, 其为该电子书的一种实施方式示意图 [0070] An electronic book provided herein further technical solution for implementing the above-described method of driving an electronic book display screen, the electronic book includes also significantly screen, an EPD controller, the CPU; significantly screen 75 having a plurality of sub-pixels arranged in a matrix , see FIG. 1 and FIG. 2, which is a schematic diagram of one embodiment of an electronic book that

[0071] EPD控制器连接显示屏,CPU连接EPD控制器; [0071] EPD controller connected to the display, CPU EPD controller is connected;

[0072] EPD控制器用于接收模式信号; [0072] EPD controller for receiving a mode signal;

[0073]若模式信号指示为无内存模式,则以设定电压刷新屏幕子区域内的所有像素,使其转换为两极端灰度值之一; [0073] When the mode signal indicates the memory is no mode, places a voltage setting screen refresh all the pixels in the sub-regions, to convert it into one of two extreme gray level value;

[0074]若模式信号指示为单一内存模式,则其在上一次序列性驱动后该屏幕子区域内的像素转换为两极端灰度值之一,根据上一次序列性驱动所转换的极端灰度值、以及输入图像中对应像素的灰度值、以及序列性驱动计数值查询目标灰度-刷新第次-电压值表,获得刷新电压,用该刷新电压改变屏幕子显示区域内的对应像素点,使其在设定次数的序列性驱动后转换为输入图像中对应像素的灰度值。 [0074] When the mode signal indicates a single memory mode, it converts the pixel at a sub-region within the screen after the sequential driving of one of the two extreme gray level value of the first extreme gray level drive sequence according to the converted value, the input image and the corresponding pixel gray value, and the count value of the sequence of the driving target gray query - the first refresh time - voltage value table, to obtain a fresh voltage to change the sub-screen using the display refresh voltage corresponding pixel in the region , so that the input image is converted to the corresponding pixel gray value in the sequence after setting the number of driving.

[0075] 在另一些实施例中,上述EPD控制器如图1所示,EPD控制器包括DMA,SRAM,解码器0^1「00^1「02,查表器,时序发生器^1?04,时序发生器以及一系列寄存器;其中3_用于存储目标灰度-刷新第次-电压值表;DMA用于存取内存中图像数据,将内存中的图像按搬运至IJEPD控制器的FIFO中,以供EH)控制器处理。时序发生器用于将FIF04中的电压值应用于墨水囊以刷新电子书墨水屏中的像素; [0075] In other embodiments, the EPD controller shown in Figure 1, the EPD controller including DMA, SRAM, decoder 1 0 ^ "^ 1 00" 02, look-up table, a timing generator ^ 1? 04, a timing generator and a series of registers; wherein the target for storing gradation 3_ - first refresh time - voltage value table; the DMA for accessing the image data in the memory, the memory image by the transfer controller to IJEPD FIFO, for EH) timing generator controller for processing the voltage values ​​applied to the ink bag FIF04 to refresh the screen of the electronic book ink pixels.;

[0076] EPD控制器接在S0C的总线上,启动刷屏前,CPU通过总线把WAVEF0MR数据存放到EPD控制器的SRAM中,并配置好DMA、查表器和时序发生器的寄存器,然后再启动EM)控制器。 [0076] EPD S0C controller connected to the bus, before the start of refresh, the CPU via the bus data to be stored WAVEF0MR SRAM EPD controller, and the DMA configuration register good, look-up table, and a timing generator, and then start EM) controller. [0077]在一些实施例中EPD控制器如图2所示,EPD控制器包括DMA,SRAM,解码器0、解码器l^FIFO〇-FIF〇3,查表器,时序发生器,时序发生器以及一系列寄存器;其中SRAM用于存储目标灰度-刷新第次-电压值表;DMA用于存取内存中图像数据,将内存中的图像按搬运到即〇控制器的FIFO中,以供EPD控制器处理。 [0077] In some embodiments the controller 2 EPD, the EPD controller including DMA, SRAM, 0 the decoder, the decoder-l ^ FIFO〇 FIF〇3, look-up table, a timing generator, the timing generating and a series of control registers; wherein target gray SRAM for storing - a first refresh time - voltage value table; the DMA for accessing the image data memory, the images in the memory that is transported to the square of the FIFO controller to EPD controller for processing. 时序发生器用于将FIF04中的电压值应用于刷新电子书墨水屏中的像素;可以理解的是本文中解码器〖和解码器〇的解码方法是一样,了解了其中一个解码的工作方法,即可推知另一解码器的工作方法; A timing generator for FIF04 voltage value applied to the electronic book refresh ink screen pixels; herein will be understood that the decoding method and decoder decoder 〖square is the same, a method wherein a working understanding of the decoding, i.e., the method of working can be extrapolated to other decoder;

[0078]其中解码器0的执行的流程如下: [0078] wherein the process execution decoder 0 as follows:

[0079] 解码器0流程: [0079] Decoder Process 0:

[0080] U、判断启动标志位,如果为1执行第12步,如果为〇,计数器A置为〇,执行第n步。 [0080] U, determined start flag is 1 if the implementation of step 12, if it is square, the counter A is set to square, to step n.

[0081] 12、判断直通模式标志位,如果为丨执行第21步,如果为〇执行第31步。 [0081] 12, through mode determination flag, if step 31 is executed if the square perform step 21 of Shu.

[0082] 21、判断FIF00和FIR)2状态,如果HFOO为非空状态且FIF02为非满状态,从FIF00 中读出数据然后写入到FIF02中,执行第11步,否则,执行第^步。 [0082] 21, and determines FIF00 FIR) 2 state, if the non-empty state, and FIF02 HFOO non-full state, data is read from and written into FIF02 FIF00 in step 11. Otherwise, step execution of ^ .

[0083] 31、判断FIF00和FIF02状态,如果FIFOO为非空状态且FIF02为非满状态,执行第32 步,否则,执行第11步。 [0083] 31, and determines FIF00 FIF02 state, step 11. If the non-empty state, and FIF02 FIFOO non-full state, to step 32, otherwise execution.

[0084] 32、判断计数器A,等于0执行41,等于丨执行42,等于2执行43。 [0084] 32, it determines whether the counter A, 41 perform equal to 0, equal to 42 Shu executed, execution is equal to 2 43.

[°085] 41、从FIF00中读出数据,把数据存在寄存器A中并写到FIF02中,计数器A置为1,执行31步。 [° 085] 41, the data is read from FIF00, the presence of the data register A and writes FIF02, the counter A is set to 1, step 31 performs.

[0086] 42、从FIF00中读出数据,判断该数据是否与寄存器A的数据相等,如果是,把数写至护⑽2中,计数器A置为2,执行3狀如果不是,把数据存在寄存器A中并写到观似中, 执行31步。 [0086] 42, read data from FIF00, it determines whether the data A is equal to the data register, and if so, to write protect ⑽2 number, the counter A is set to 2, 3 form, if not executed, the data in the register A similar concept and write, execute step 31. _7]仏从FIF00中读出数据存到计数器B,执行44步。 [7] Fo stored data is read from FIF00 to the counter B, to step 44. _8] M、判断计数器B等于0,如果是,计数器A置为〇,执行31步,如果不是发送寄存器六的数据写到FIF02中,计数器B累减1,执行44步。 _8] M, determines whether the counter B is equal to 0. If yes, the counter A is set to square, perform step 31, if the data is not written to the transmit register six FIF02, the regressive counter B 1, to step 44. 疋,及达竒仔器A Piece Goods, and A is up to Qi Tsai

[0089] 其DMA流程如下: [0089] DMA procedure which follows:

[0090] U、判断启动标志位,如果为1执行第12步,如果为0,计数器N置为0,计数器M置为0,执行第11步。 [0090] U, determined start flag, if 1 perform step 12, if it is 0, the counter N is set to 0, the counter M is set to 0, to step 11.

[0091] I2、判断内存M吏能标志位,如果为1执行第13步,如果为0执行第11步。 [0091] I2, M official determination flag bit memory, if 1 perform step 13, if is 0 to step 11.

[0092] 13、判断FIF00的状态,如果为非满执行14步,如果为满执行21步。 [0092] 13, determines the state of FIF00, if the non-full execution step 14, if the full 21 steps perform.

[0093] 14、判断内存A计数器N是否等于内存A长度,相等执行21步,不相等执行第15步。 [0093] 14, it is determined whether the memory A counter N A is equal to the length of the memory, step 21 perform equal, not equal to step 15.

[0094] 15、读内存A第N个数据存到HF00中,计数器N累加1,执行第13步。 [0094] 15, A N-th read memory data stored in the HF00, the counter N is incremented by 1, to step 13.

[0095] 21、判断内存B使能标志位,如果为1执行第22步,如果为〇执行第31步。 [0095] 21, determining whether the memory enable flag B, if a step 22 performs, if the implementation of step 31 is square.

[0096] 22、判断HF01的状态,如果为非满执行23步,如果为满执行13步。 [0096] 22, determines the state of the HF01, if the non-full execution step 23, if the full 13 steps perform.

[0097] 23、判断内存B计数器M是否等于内存B长度,相等执行31步,不相等执行第24步。 [0097] 23, it is determined whether the counter M is equal to B memory memory length B equal perform step 31, step 24 is not performed are equal.

[0098] 24、读内存B第M个数据存到FIF01中,计数器M累加1,执行第22步。 [0098] 24, the memory read data B stored to the M-th FIF01, the counter M is incremented by 1, step 22 performs.

[00"] 31、判断内存A计数器N是否等于内存A长度,如果相等,设置中断标志位为丨,设置启动标志位为0并执行11步,如果不相等,执行第13步。 [00 "] 31, it is judged whether the counter N A memory A is equal to the length of the memory, if they are equal, the interrupt flag is set Shu, start flag set to 0 and perform step 11, if not equal, to step 13.

[0100] 查表器流程: [0100] table checker process:

[0101] u、判断启动标志位,如果为1执行第12步,如果为0,计数器A置为0,计数器B置为0,执行第11步。 [0101] u, start flag is determined, if the execution of a step 12, if it is 0, the counter A is set to 0, the counter B is set to 0, to step 11.

[0102] 12、判断FIF04的状态,如果为非满状态,执行13,否则执行丨丨步。 [0102] 12, determines the state of FIF04, if the non-full state, performing 13 is performed, otherwise step Shushu.

[0103] 13、判断模式寄存器,等于〇时,执行21,等于1时,执行31,等于2时,执行41。 When [0103] 13, the mode register is determined, equal to square, performed 21, is equal to 1, 31 executed, it is equal to 2, performing 41.

[0104] 21、用寄存器A、寄存器B和计数器A的值算出SRAM的地址,从SRAM读出数据写入到HF04中。 [0104] 21, register A, register B, and the counter value A is calculated SRAM addresses, write data is read from the SRAM to the HF04. 计数器B累加1。 Counter B 1 accumulates. 执行51步。 51-step execution.

[0105] 31、判断FIF02状态,如果为非空,从FIF02中读出数据,然后这个数据和寄存器B和计数器A算出SRAM的地址,从SRAM读出数据写入到H F04中。 [0105] 31, a state determination FIF02, if non-empty, data is read from FIF02, then this counter and the register B and data A calculated from the address of the SRAM, write data is read from the SRAM to the H F04. 计数器B累加1。 Counter B 1 accumulates. 执行51步。 51-step execution.

[0106] 41、判断FIF02和FIF03状态,如果两者都为非空,从FIF02中读出数据,从FIF03中读出数据,然后这个两个数据和计数器A算出SRAM的地址,从SRAM读出数据写入到FIF04中。 [0106] 41, and determines FIF02 FIF03 state, if both are non-null, data is read from FIF02, read data from FIF03, SRAM and the two address counters A and calculated data, read out from the SRAM the data is written into FIF04. 计数器B累加1。 Counter B 1 accumulates. 执行51步。 51-step execution.

[0107] 51、判断计数器B是否等于长度B,如果是,计数器A累加1,计数器B置为0,执行52 步,否则执行11步。 [0107] 51, determines the length of the counter B is equal to B, if it is, the counter A is incremented by 1, the counter B is set to 0, the step 52 is performed, otherwise step 11.

[0108] 幻、判断计数器A是否等于长度A,如果是,计数器A置为0,中断标志位置为1,启动标志位置为0,执行11步。 [0108] phantom, determining whether the counter A is equal to the length A, if so, the counter A is set to 0, the interrupt flag is 1, the start flag is 0, the step 11.

[0109]时序发生器:它是用来生成EPD控制器的时序,并把FIF04中的数据调制到时序中, 用于改变电子书显示屏的墨囊的状态。 [0109] The timing generator: It is used to generate timing EPD controller, and the modulated data into FIF04 in sequence, an electronic book display screen for changing the state of the ink bag.

[0110] 在其他实施例中,EPD控制器如图2所示,EPD控制器用于在无内存模式时,在设定次数的序列性驱动内,根据序列性驱动的计数值查询目标灰度-刷新第次-电压值表,获得设定电压,用该设定电压刷新屏幕子区域内的所有像素,使屏幕子区域内的所有像素在设定次数的序列性驱动内逐渐转换为两极端灰度值之一。 [0110] In other embodiments, as shown in FIG an EPD controller, an EPD controller for mode 2 in the absence of memory, within the sequence of driving times is set, the drive according to the sequence of the target gray query count value - the first refresh time - voltage value table, the set voltage, all pixels within the screen refresh sub-region with the set voltage, so that all pixels within the screen is gradually converted into two sub-regions within the sequence of gray extreme driving set number one value.

[0111] EPD控制器用于若模式信号指示为双内存模式,则根据目标像素的当前灰度值、以及输入图像中对应像素的灰度值、以及序列性驱动计数值查询初始灰度-目标灰度-刷新第次-电压值表,获得刷新电压,用该刷新电压改变屏幕子显示区域内的对应像素点,使其在设定次数的序列性驱动后转换为输入图像中对应像素的灰度值;其中目标像素的位置与输入图像中对应像素的位置对应。 [0111] EPD controller for dual mode signal indicates when the memory mode, the query initial gray gradation according to the current value of the target pixel, the input image and the corresponding pixel gray value, and the count value of the sequence of drive - on Gray degree - the first refresh time - voltage value table, to obtain a fresh voltage to change the sub-screen using the display refresh voltage corresponding pixel in the region, so that the conversion sequence after a set number of the drive in the input image corresponding to pixels in the gradation value; wherein the pixel position corresponding to the position of the input image corresponding to the target pixel. 其显示屏为多边形、圆形或椭圆形。 Which display a polygonal, circular or elliptical.

[0112]所述CPU用于当配置为低带宽模式时,CPU根据当前配置,发送无内存模式的模式信号,并在设定次数的序列性驱动后,发送单一内存模式的模式信号。 [0112] When the CPU is used to configure the low bandwidth mode, based on the current CPU configuration, no signal transmission pattern memory mode, and the driving sequence of the set number, the memory transmission mode a single mode signal.

[0113]所述CPU用于向EPD控制器输出压缩数据,压缩数据使用的压缩方法为:输入原始图像数据,将输入原始图像数据按照设定长度分组,按分组的序列顺序逐一处理原始图像数据,当出现两个及两个以上连续小组的数据相同时,输出两个这样的小组,该小组的数据为上述连续小组的数据,并且输出的一个统计小组,该统计小组中的数值为在原始图像数据中上述连续小组中的小组个数减去2;若某一小组与其左右连续的小组的数据不同,则直接输出该小组; [0113] CPU for the compressed data output to the EPD controller, the data compression method is used for compression: the input original image data, the original image data according to the set input packet length, packet order of the sequence of processing the raw image data one by one , when the data for two or more consecutive occurrence of the same group, the output of two such groups, the group of data of the continuous data group, and outputs a statistical group, the group is the statistical value of the original the image data group number of the group of the continuous minus 2; if a certain group about their different successive group of data, the direct output of the group;

[0114]在“根据上一次序列性驱动所转换的极端灰度值、以及输入图像中对应像素的灰度值、以及序列性驱动计数值查询目标灰度-刷新第次-电压值表”之前EPD控制器还用于: 检测压缩后的图像数据,若检测到统计小组,则根据统计小组中指示的连续小组中的小组个数还原连续小组。 [0114] "corresponding to the pixel gray value, and the count value of the sequence of driving the query terminal target gray gradation value of a driving sequence in accordance with the converted, and an input image, - the first refresh time - voltage value table" before EPD controller is further configured to: detecting the compressed image data, upon detection statistics group, the reduction of the number of consecutive group the group statistics consecutive group in the group indicated.

[0115]所述设定长度为lbyte或2byte。 [0115] The set length is lbyte or 2byte.

[0116] CPU用于当判断图像数据为文本图像数据时,对其使用权利要求6所述的压缩方法压缩图像数据,并将压缩后的图像数据发送到EH)控制器。 [0116] CPU determines if the image data for the image as text data, its use compression method according to claim 6 compressed image data, and transmits the compressed image data to EH) controller.

[0117] CPU用于随机选择图像数据的至少2列或2行作为样本数据,将样本图像数据按照设定长度分组,若样本数据中含4个以上小组的连续小组的个数大于含有2个小组的连续小组的个数,且样本数据中所有的连续小组所含的小组个数大于样本数据的分组数据的30%,则判断图像数据为文本图像数据。 [0117] CPU 2 or at least two rows for randomly selecting the image data as the sample data, the sample image data according to the set length of the packet, if the number of sample data group containing 4 or more consecutive group containing greater than 2 30% of the number of consecutive number of Sub Sub-group, and all of the sample data contained in the successive group of sample data is larger than the data packet, it is determined that the image data is text image data.

[0118]需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。 [0118] Incidentally, herein, relational terms such as first and second and the like are only used to distinguish one entity or operation from another entity or action without necessarily requiring or implying these entities the presence of any such actual relationship or order between or operations. 而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者终端设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者终端设备所固有的要素。 Further, the term "comprising", "containing" or any other variation thereof, are intended to cover a non-exclusive inclusion, so that process comprising a series of elements, method, article, or terminal device not include only those elements but not explicitly listed further comprising the other elements, or elements of the process further comprising, method, article, or inherent to the terminal device. 在没有更多限制的情况下,由语句“包括……”或“包含……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者终端设备中还存在另外的要素。 Without more constraints, by the statement "...... comprises" or "comprising ......" element defined does not exclude the presence of additional elements in the process element comprising, method, article, or terminal device. 此夕卜,在本文中,“大于”、“小于”、“超过”等理解为不包括本数;“以上”、“以下”、“以内”等理解为包括本数。 This evening Bu, herein, "greater than," "less than", "over", etc. is understood to not include the; "above", "below", "within" and the like are understood to include this number.

[0119]本领域内的技术人员应明白,上述各实施例可提供为方法、装置、或计算机程序产品。 [0119] skill in the art should understand that the above embodiments may be provided as a method, apparatus or computer program product. 这些实施例可米用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。 These embodiments may meter with an entirely hardware embodiment, an entirely software embodiment, or an embodiment in conjunction with the form of software and hardware aspects. 上述各实施例涉及的方法中的全部或部分步骤可以通过程序来指令相关的硬件来完成,所述的程序可以存储于计算机设备可读取的存储介质中,用于执行上述各实施例方法所述的全部或部分步骤。 Each of the above embodiments relate in all or part of the steps may be by a program instructing relevant hardware to complete, the program may be stored in a storage medium can be read by a computer, the above-described embodiments for performing the method all or part of the steps described below. 所述计算机设备,包括但不限于:个人计算机、服务器、通用计算机、专用计算机、网络设备、嵌入式设备、可编程设备、智能移动终端、智能家居设备、穿戴式智能设备、车载智能设备等;所述的存储介质,包括但不限于:RAM、R〇M、磁碟、磁带、光盘、闪存、U盘、移动硬盘、存储卡、记忆棒、网络服务器存储、网络云存储等。 The computer device, including but not limited to: a personal computer, a server, a general purpose computer, special purpose computer, network devices, embedded devices, programmable equipment, intelligent mobile terminal, smart home devices, wearable smart devices, intelligent vehicle equipment; the storage medium, including but not limited to: RAM, R〇M, magnetic disk, magnetic tape, optical disk, flash memory, U disk, mobile hard disk, memory card, memory stick, a network storage server, network cloud storage.

[0120]上述各实施例是参照根据实施例所述的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。 [0120] each of the above embodiments with reference to the embodiment of the method according to embodiments, apparatus (systems) and computer program products flowchart and / or block diagrams described. 应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。 It should be understood and implemented by computer program instructions and block, and the flowchart / or block diagrams each process and / or flowchart illustrations and / or block diagrams of processes and / or blocks. 可提供这些计算机程序指令到计算机设备的处理器以产生-个机器,使得通过计龍设备的处理器执行的指令=生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置D These computer program instructions may be provided to a processor to produce a computer device - a machine, such that the instructions executed by the processor of the device = meter long green for implementing the one or more flows / or block diagram blocks and a means D or more functions specified in the block

[0121]这些计算机程序指令也可存储在能引导计算机设备以特定方式工作的计算机设备可读存储器中,使得存储在该计算机设备可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。 [0121] These computer program instructions may also be stored in a computer-readable memory that can direct a computer device apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an apparatus article of manufacture including instruction means and the instruction means implemented in a flowchart or more flows and / or block diagram block or blocks in a specified function.

[0122]这些计算机程序指令也可装载到计算机设备上,使得在计算机设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。 [0122] These computer program instructions may also be loaded onto a computer device, such that a series of operations on a computer device in step to produce a computer-implemented instructions which execute on the computer apparatus provide steps for implementing a process in the flowchart or a plurality of processes and / or steps are a block diagram of a block or blocks specified functions.

[0123]尽管已经对上述各实施例进行了描述,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例做出另外的变更和修改,所以以上所述仅为本发明的实施例, 并非因此限制本发明的专利保护范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围之内。 [0123] Although the above embodiments have been described, but those skilled in the art from the underlying inventive concept can make further changes and modifications of these embodiments, the above are only present embodiments of the invention, not intended to limit the scope of the present invention, all utilize the present specification and drawings taken equivalent structures or equivalent process, or applied directly or indirectly to other related technical fields shall fall included within the scope of protection of the present invention.

Claims (18)

  1. 1.电子书显不屏驱动方法,其特征在于,该显示屏具有矩阵形式排列的复数子像素,该方法包括步骤: EPD控制器接收模式信号; 若模式信号指示为无内存模式,则以设定电压刷新屏幕子区域内的所有像素,使其转换为两极端灰度值之一; 若模式信号指示为单一内存模式,则其在上一次序列性驱动后该屏幕子区域内的像素转换为两极端灰度值之一,根据上一次序列性驱动所转换的极端灰度值、以及输入图像中对应像素的灰度值、以及序列性驱动计数值查询目标灰度-刷新第次-电压值表,获得刷新电压,用该刷新电压改变屏幕子显示区域内的对应像素点,使其在设定次数的序列性驱动后转换为输入图像中对应像素的灰度值;所述刷新第次表示第几次序列性驱动。 1. The electronic book not significantly panel driving method wherein, the display screen having a plurality of sub-pixels arranged in a matrix, the method comprising the steps of: EPD controller receives a mode signal; if the mode signal indicates the memory is no mode, they are provided constant voltage screen refresh all the pixels within the sub-region, to convert it into one of two extreme gray level value; if the mode signal indicates a single memory mode, it converts the pixel at a sub-screen in the rear region of the sequence is driven one of the two extreme gray level value, in accordance with the driving of the sequence of converted gradation value one extreme, the input image and the corresponding pixel gray value, and the count value of the sequence of the driving target gray query - the first refresh time - voltage table, the refresh voltage is obtained, by changing the sub-screen display refresh voltage corresponding pixel in the region, so that the conversion sequence after a set number of driving corresponding pixels in the input image gray value; indicates the refresh times of The first few sequences of the drive.
  2. 2.根据权利要求1所述的电子书显示屏驱动方法,其特征在于,在无内存模式时,在设定次数的序列性驱动内,根据序列性驱动的计数值查询目标灰度-刷新第次-电压值表,获得设定电压,用该设定电压刷新屏幕子区域内的所有像素,使屏幕子区域内的所有像素在设定次数的序列性驱动内逐渐转换为两极端灰度值之一。 The electronic book display driving method according to claim 1, wherein, when no memory model, the sequence of driving in the set number, the count value of the query sequence of target gradation driving - a first refresh time - voltage value table, the set voltage, all pixels within the screen refresh sub-region with the set voltage, so that all pixels within the sub-area of ​​the screen is gradually converted into two extreme gray level values ​​within the sequence of a set number of drive one.
  3. 3.根据权利要求1所述的电子书显示屏驱动方法,其特征在于,若模式信号指示为双内存模式,则根据目标像素的当前灰度值、以及输入图像中对应像素的灰度值、以及序列性驱动计数值查询初始灰度-目标灰度-刷新第次-电压值表,获得刷新电压,用该刷新电压改变屏幕子显示区域内的对应像素点,使其在设定次数的序列性驱动后转换为输入图像中对应像素的灰度值;其中目标像素的位置与输入图像中对应像素的位置对应。 3. The electronic book of Claim 1, wherein the display driving method, wherein, if the mode signal indicates the memory is dual-mode, the gradation value corresponding to the current pixel based on the gray value of a pixel, and the input image, and a sequence of driven query count value initial gray - sequence voltage value table, the refresh voltage is obtained, the corresponding pixel in the display area of ​​the sub screen refresh voltage change, so the set number - target gray - refresh times of after conversion of driving the pixel grayscale values ​​corresponding to the input image; a position corresponding to a position where a pixel of the input image corresponding to the target pixel.
  4. 4.根据权利要求1_3所述的任一电子书显示屏驱动方法,其特征在于,该显示屏为多边形、圆形或椭圆形。 4. The electronic book according to any of 1_3 a display driving method, characterized in that the display is polygonal, circular or elliptical.
  5. 5.根据权利要求1-3所述的任一电子书显示屏驱动方法,其特征在于,若配置为低带宽模式,则CPU根据当前配置,发送无内存模式的模式信号,并在设定次数的序列性驱动后,发送单一内存模式的模式信号。 According to any one of claim 1-3 electronic book display driving method of claim, wherein, when configured for low bandwidth mode, the CPU based on the current configuration, no signal transmission pattern memory mode, and set the number of times after sequential drive, the memory transmission mode a single mode signal.
  6. 6. 根据权利要求1-3所述的任一电子书显示屏驱动方法,其特征在于,输入的图像为压缩数据,压缩数据使用的压缩方法为:输入原始图像数据,将输入原始图像数据按照设定长度分组,按分组的序列顺序逐一处理原始图像数据,当出现两个及两个以上连续小组的数据相同时,输出两个这样的小组,该小组的数据为上述连续小组的数据,并且输出的一个统计小组,该统计小组中的数值为在原始图像数据中上述连续小组中的小组个数减去2;若某一小组与其左右连续的小组的数据不同,则直接输出该小组; 在“根据上一次序列性驱动所转换的极端灰度值、以及输入图像中对应像素的灰度值、 以及序列性驱动计数值查询目标灰度-刷新第次-电压值表”之前还包括步骤:检测压缩后的图像数据,若检测到统计小组,则根据统计小组中指示的连续小组中的小组个 According to any of claims 1-3 display driving method of an e-book, characterized in that the compressed image data input, the data compression method is used for compression: the input original image data, the input original image data in accordance with the setting the length of the packet, processing the original image data one by one in sequence order of packets, and when two or more consecutive two data appears the same group, the output of two such groups, the group of data of the continuous data group, and Panel a statistical output value of the count in the group of the original image data group number of the group of the continuous minus 2; if a certain group about their different successive group of data, the direct output of the group; the "the extreme gray level value of a sequence of driving the conversion of the input image and the corresponding pixel gray value, and the count value of the sequence of the driving target gray query - the first refresh time - voltage value table" until further comprising the step of: the compressed image data is detected, if the detected group statistics, the statistical Panel Panel Panel contiguous indicated in accordance with 还原连续小组。 Continuous reduction group.
  7. 7. 根据权利要求6所述的任一电子书显示屏驱动方法,其特征在于,所述设定长度为lbyte或2byte。 An e-book according to any display driving method according to claim 6, wherein the set length is lbyte or 2byte.
  8. 8. 根据权利要求6所述的电子书显示屏驱动方法,其特征在于,当CPU判断图像数据为文本图像数据时,对其使用权利要求6所述的压缩方法压缩图像数据,并将压缩后的图像数据发送到EPD控制器。 8. The method of driving a display screen of the electronic book according to claim 6, wherein, when the CPU determines whether the image data is text image data compression method according to claim 6 for its use compressed image data, and compression transmitting image data to the EPD controller.
  9. 9. 根据权利要求1所述的电子书显示屏驱动方法,其特征在于,所述“CPU判断图像数据为文本图像数据”为随机选择图像数据的至少2列或2行作为样本数据,将样本图像数据按照设定长度分组,若样本数据中含4个以上小组的连续小组的个数大于含有2个小组的连续小组的个数,且样本数据中所有的连续小组所含的小组个数大于样本数据的分组数据的30%,则判断图像数据为文本图像数据。 9. The electronic book display driving method according to claim 1, characterized in that the "CPU determines whether the image data is text image data" as the sample data of at least two rows or two randomly selected image data, the sample setting a packet length in accordance with the image data, if the sample number of the data group containing four or more consecutive group is larger than the number of consecutive group containing two teams, and the number of Sub-sample data contained in all of the successive group is greater than 30% of the sample data of the data packet, it is determined that the image data is text image data.
  10. 10. 电子书,该电子书包括显示屏、EPD控制器、CPU;显示屏具有矩阵形式排列的复数子像素,其特征在于: EPD控制器连接显示屏,CPU连接EPD控制器; EPD控制器用于接收模式信号; 若模式信号指示为无内存模式,则以设定电压刷新屏幕子区域内的所有像素,使其转换为两极端灰度值之一; 若模式信号指示为单一内存模式,则其在上一次序列性驱动后该屏幕子区域内的像素转换为两极端灰度值之一,根据上一次序列性驱动所转换的极端灰度值、以及输入图像中对应像素的灰度值、以及序列性驱动计数值查询目标灰度-刷新第次-电压值表,获得刷新电压,用该刷新电压改变屏幕子显示区域内的对应像素点,使其在设定次数的序列性驱动后转换为输入图像中对应像素的灰度值;所述刷新第次表示第几次序列性驱动。 10. The electronic book, the electronic book comprising a display screen, the EPD controller, the CPU; a display screen having a plurality of sub-pixels arranged in a matrix, wherein: the display connected to the EPD controller, connected to the CPU EPD controller; EPD controller for receiving a mode signal; if the mode signal indicates the memory is no mode, places a voltage setting screen refresh all the pixels in the sub-regions, to convert it into one of two extreme gray level value; if the mode signal indicates a single memory mode, it after the last sequence of driving the pixels within the sub-region of the screen is converted into one of two extreme gray level value, in accordance with the time sequence of the driving extreme converted gradation value, the input image and the corresponding pixel gray value, and query sequence count value of the driving target gray - first refresh time - voltage value table, the refresh voltage is obtained with which the sub-display screen refresh voltage change within the corresponding pixel region, so as to convert the sequences in the set number of times of driving input image corresponding pixel gray value; denotes the refresh times of several sequential driving.
  11. 11. 根据权利要求10所述的电子书,其特征在于,EPD控制器用于在无内存模式时,在设定次数的序列性驱动内,根据序列性驱动的计数值查询目标灰度-刷新第次-电压值表,获得设定电压,用该设定电压刷新屏幕子区域内的所有像素,使屏幕子区域内的所有像素在设定次数的序列性驱动内逐渐转换为两极端灰度值之一。 11. The electronic book of Claim 10, characterized in that, in the absence of an EPD controller to the memory mode, the sequence of driving in the set number, the query according to the value of target gradation driving sequence count - the first refresh time - voltage value table, the set voltage, all pixels within the screen refresh sub-region with the set voltage, so that all pixels within the sub-area of ​​the screen is gradually converted into two extreme gray level values ​​within the sequence of a set number of drive one.
  12. 12. 根据权利要求10所述的电子书,其特征在于,EPD控制器用于若模式信号指示为双内存模式,则根据目标像素的当前灰度值、以及输入图像中对应像素的灰度值、以及序列性驱动计数值查询初始灰度-目标灰度-刷新第次-电压值表,获得刷新电压,用该刷新电压改变屏幕子显示区域内的对应像素点,使其在设定次数的序列性驱动后转换为输入图像中对应像素的灰度值;其中目标像素的位置与输入图像中对应像素的位置对应。 12. The electronic book according to claim 10, wherein, if an EPD controller for dual mode signal indicates the memory mode, according to the current target pixel gray scale value, and a pixel gradation values ​​corresponding to the input image, and a sequence of driven query count value initial gray - sequence voltage value table, the refresh voltage is obtained, the corresponding pixel in the display area of ​​the sub screen refresh voltage change, so the set number - target gray - refresh times of after conversion of driving the pixel grayscale values ​​corresponding to the input image; a position corresponding to a position where a pixel of the input image corresponding to the target pixel.
  13. 13. 根据权利要求10-12所述任一电子书,其特征在于,其显示屏为多边形、圆形或椭圆形。 According to any one of claims 10-12 electronic book, characterized in that it displays a polygonal, circular or elliptical.
  14. 14. 根据权利要求10-12所述任一电子书,其特征在于,所述CPU用于当配置为低带宽模式时,CPU根据当前配置,发送无内存模式的模式信号,并在设定次数的序列性驱动后,发送单一内存模式的模式信号。 According to any one of claims 10 to 12 the e-book, characterized in that said CPU is arranged for, when the low bandwidth mode, based on the current CPU configuration, no signal transmission pattern memory mode, and set the number of times after sequential drive, the memory transmission mode a single mode signal.
  15. 15. 根据权利要求10_12所述任一电子书,其特征在于,所述CHJ用于向EPD控制器输出压缩数据,压缩数据使用的压缩方法为:输入原始图像数据,将输入原始图像按照设定长度分组,按分组的序列顺序逐一处理原始图像数据,当出现两个及两个以上连续小组的数据相同时,输出两个这样的小组,该小组的数据为上述连续小组的数据,并且输出的一个统计小组,该统计小组中的数值为在原始图像数据中上述连续小组中的小组个数减去2;若某一小组与其左右连续的小组的数据不同,则直接输出该小组; 在“根据上一次序列性驱动所转换的极端灰度值、以及输入图像中对应像素的灰度值、 以及序列性驱动计数值查询目标灰度-刷新第次-电压值表”之前EPD控制器还用于:检测压缩后的图像数据,若检测到统计小组,则根据统计小组中指示的连续小组中的小组个数 15. The method of claim 10_12 any of an e-book, characterized in that, for compressing the data CHJ EPD controller outputs, using a data compression method for the compression: the input original image data, the original image according to the setting input the length of the packet, processing the original image data one by one in sequence order of packets, when two successive data group and two or more of the same occurs, the output of two such groups, the group data is continuous data of the group, and the output a statistical group, the value of the count in the group of the original image data group number of the group of the continuous minus 2; successive different data thereto about a certain group if the group, the group output directly; in "the the last sequence of the extreme driving converted gradation value, the input image and the corresponding pixel gray value, and the count value of the sequence of the driving target gray query - the first refresh time - voltage value table "before the EPD controller is further configured to : detecting the compressed image data, if the detected group statistics, the statistical groups according to the continuous group of indicated number of teams 原连续小组。 Continuous original group.
  16. 16.根据权利要求10-12所述任一电子书,其特征在于,所述设定长度为lbyte或2byte。 10-12 16. The method of claim any one of an electronic book, wherein the set length is lbyte or 2byte.
  17. 17. 根据权利要求1〇-12所述任一电子书,其特征在于,CPU用于当判断图像数据为文本图像数据时,对其使用权利要求6所述的压缩方法压缩图像数据,并将压缩后的图像数据发送到ETO控制器。 17. 1〇-12 according to claim any of the e-book, characterized in that, when the CPU determines whether the image data for the image as text data, its use compression method according to claim 6 compressed image data, and compressed image data is transmitted to the controller ETO.
  18. 18. 根据权利要求1〇-12所述任一电子书,其特征在于,CPU用于随机选择图像数据的至少2列或2行作为样本数据,将样本图像数据按照设定长度分组,若样本数据中含4个以上小组的连续小组的个数大于含有2个小组的连续小组的个数,且样本数据中所有的连续小组所含的小组个数大于样本数据的分组数据的30%,则判断图像数据为文本图像数据。 1〇 according to claim any one of the electronic book-12, wherein, the image data of the CPU for randomly selecting at least two rows or 2 as the sample data, the sample image data packet according to a set length, if the sample 30% of the number of sample data group containing the number of consecutive data group of four or more larger than the number of the group comprising group 2 consecutive teams, and all successive data sample is greater than the group contained in the packet data, the Analyzing the image data is text image data.
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