CN100405425C - Flat panel display screen line time slice distribution recombination scanning and modulating method - Google Patents

Flat panel display screen line time slice distribution recombination scanning and modulating method Download PDF

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CN100405425C
CN100405425C CN 200510016793 CN200510016793A CN100405425C CN 100405425 C CN100405425 C CN 100405425C CN 200510016793 CN200510016793 CN 200510016793 CN 200510016793 A CN200510016793 A CN 200510016793A CN 100405425 C CN100405425 C CN 100405425C
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slice
panel
method
display
modulating
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CN1866330A (en )
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丁铁夫
冯永茂
王瑞光
郑喜凤
宇 陈
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中国科学院长春光学精密机械与物理研究所
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Abstract

本发明为平板视频显示技术领域中的一种平板显示屏行列时间片分布重组扫描调制方法,采用的技术方案为:将基本驱动点阵扫描时间片分为k个阶段,在每一个阶段扫描时间片内对基本驱动点阵完成一次扫描过程,每完成一个阶段扫描时间片的扫描过程后,进行下一个阶段扫描时间片的扫描,直至完成k个阶段扫描时间片的扫描过程;k为大于1小于n<sub>s</sub>并能被n<sub>s</sub>整除的正整数。 The present invention is a flat panel video display scanning recombinant modulation method of a flat panel display technical field the time slot distribution line, the technical solutions used are: basic dot matrix scan driver is divided into time slices k stages, each stage scan time after the chip to complete a basic scan driving dot matrix, each stage of the scanning process the scan time slice, the next stage scanning time slice scan, the scanning process is completed until the k th stage scan time slice; k is greater than 1 less than n <sub> s </ sub> and can be n <sub> s </ sub> positive integer divisible. 本发明采用改变现有技术中行列扫描同时间片扫描的相互关系的方法,克服了原有时间片扫描方法驱动点阵之间明显的闪动条纹和同行或列扫描垂直方向的运动边缘畸变的缺点,提高了显示屏的显示效果。 The present invention employs a method of changing the relationship of the scan line with the scan time slice prior art, overcomes this time slice scanning method flashing significant driving moving edges between peers lattice stripes and vertical or column scanning distortion shortcomings, improving the display effect of the display.

Description

一种平板显示屏行列时间片分布重组扫描调制方法技术领域:本发明属于平板视频显示技术领域,涉及一种平板显示屏时间片扫描灰度级控制方法,具体地说是一种平板显示屏行列时间片分布重组扫描调制方法。 A flat screen row scanning time slot distribution recombinant Field Modulation Method: The present invention belongs to the field of flat panel video display technology, flat screen, to a sheet scanning time gray scale controlling method, in particular a flat screen ranks the time slot distribution recombinant scanning modulation method. 技术背景:对于平板显示屏来说,其由许多的显示象素组成。 BACKGROUND ART: For the flat screen, its display by a number of pixels. 单色显示屏的每一个显示念素只有一种颜色,彩色显示屏的一个象素由两个到三个不同颜色的基色象素构成。 Each monochrome screen display pixel read only one color, a color display pixel consists of two to three primary color pixels of different colors. 一个MXN基色象素点阵的平板显示屏模块含有M路行输入点亮信号和N路列输入点亮信号。 A MXN pixel color dot matrix flat display module row comprising M-way and N-way signal input column lighting lighting signal input. 当一路行输入点亮信号和一路列输入点亮信号同时有效,则处于交叉点的基色象素发光。 When the input pixel color along row and one column input signal lighting up signal while effectively, at the intersection of the light emission. 一般来说屏的每一行的行输入点亮信号公用, 一路行输入点亮信号分别接各自对应的数据移位寄存器的相应输出脚,可以实现一行同时点亮的行扫描。 Lighting signal input line of each row of common general screen, all the way up signal input connected to a respective output pin of the respective corresponding data shift register, respectively, may be achieved simultaneously lighted row scanning line. 平板显示屏的灰度级调制利用基色象素的二进制颜色亮度信号对该象素点的点亮时间进行控制,从而使该显示象素点产生与其颜色亮度信号相对应的明暗变化,达到图像灰度显示的目的。 The flat screen color intensity of lighting time of the binary signals of the pixel point using the color pixel grayscale modulator is controlled so that the bright and dark pixels for displaying a color change in a luminance signal corresponding thereto, to achieve image gray purpose of the display. 其原理简述如下:如图1所示,平板显示屏的灰度级调制控制电路由一个Sbit的计数器l 和一个8bit的列数据寄存器2以及一个双8bit的比较器3组成。 The principle is summarized as follows: 1, gradation modulation control circuit by a flat screen Sbit counter l and a column data register 2, and one pair of 8bit 8bit comparator 3 composition. 其中i4数器和列数据寄存器的控制时序由逻辑控制阵列产生。 I4 wherein the number of columns of data and control timing logic control register is generated by the array. 列数据寄存器2中保存有当前扫描某一列的8bit灰度数据4,其数值6由输入端送往比较器3。 Column data register stores the current scan 8bit gray-scale data of a column 4, which is taken to a value of 6 by the input of the comparator 32 in. 计数器l 对时钟脉冲8进行计数,时钟脉冲8的周期rcuc设计成当8bit计满时恰好等于行扫描周期7L,即TI = 256XrCUc。 L counter counts clock pulses 8, 8 clock cycles is designed such that when 8bit rcuc expire exactly equal to 7L line period, i.e., TI = 256XrCUc. 计数值5也输出到比较器3,比较器3的输出7用于驱动该扫描行各列的显示象素,此时比较器3和计数器1将本行扫描周期7l分为256个时间片,在每个时间片7bLK对该列的灰度数据4进行比较处理,根据计数器l的数值确定当前时间片该点的显示象素是否发光。 Count value is also output to the comparator 5, the output of the display pixel columns 7 for driving the scanning line 3 of the comparator 3, a comparator 3, and at this time the counter 1 Bank 7l scanning period is divided into 256 time slices, gradation data of the column 4 are compared at each time slice processing 7bLK, determining the display pixels of the current time slice is illuminated in accordance with the point value of the counter of l. 这样,计数器l不断进行时间片的累计,从计数开始就令比较器3输出有效, 直到比较器3的两个输入5和6相等时停止输出;这样,驱动显示象素发光的时间就是列数据4代表数值倍数的r(XK。因此,列数据控制了显示象素发光的时间,即控制了占空比,该占空比控制驱动只是对LXV点阵部分(L为点阵行数,V为点阵列数)的l列象素驱动,整个显示屏需要的控制电路是一个不小的数目。计数器部分在整个过程中对于每一个扫描行的每一列都是相同的,是可以共用的;而图l所示的列数据寄存器和比较器则无法共用,而后果则是平板显示屏的灰度级调制控制电路过于复杂。经过不断改进,目前形成了控制结构简单的时间片扫描灰度级控制方法,其主要改进在于将计数器输出的每个周期rcxK看作一个无灰度级的单位周期控制过程(时间片),采用串行传输的方法, Thus, the cumulative time counter l continuous sheet, counting from the beginning so that the comparator 3 output is active, the output is stopped until the two inputs of the comparator 3 is equal to 5 and 6; thus, the light emitting display pixel drive time is the column data 4 represents a value of a multiple of r (XK. Thus, the display pixel columns of data controls the light emission time, i.e., controlling the duty ratio, the duty ratio control driving portion just LXV lattice (L is the number of matrix rows, V l column of pixels is the number of point array) drive, the control circuit requires the entire display screen is not a small part of the total number of counters for each column during each scan line is the same, can be shared.; the column data registers and comparators shown in Figure l is not shared, but the consequences are grayscale modulator control circuits of the flat screen is too complex. retrofits, the current form of a simple control configuration slice scanning time grayscale control method, the improvement wherein each major cycle counter output rcxK as a unit without a gray scale level of process control cycle (time slice), the serial transmission method, 在每个周期7kK内将本行列数据通过比较器形成该周期对应的列数据,传往列驱动器,在硬件方面是很经济的。 一般来说,该过程是重叠处理的过程,即在显示本行本周期的各列数据的同时,准备下一个周期的各列数据或下一行的第一周期数据(在显示本行最后一个周期时),此时的周期rc^实际上为一个扫描时间片,在该周期内的显示驱动过程同无灰度的显示屏相同,重复计数器输出的所有周期就会完成显示屏的灰度显示,其特点是所有的驱动部分均可以共用,节省了大量的硬件器件。图2所示为标准时间片扫描灰度级控制的过程。从图中看到,显示数据《仍在0到255之间,#是从1到255共255个时间片7^,由于显示数据O为不占用时间周期,所以行周期7? = 255X 7I,k; 而帧周期7S 二LX &该行的四个相邻点显示数据,值分别为O, 1, 51和255,在该行的第一个时间片 This ranks the data formed in each cycle by the comparator 7kK column data corresponding to the period, to the column driver mass, in terms of hardware is very economical. In general, the process is a process overlap processing, i.e., in the present display while the rows and columns of data in this period, each column of data in preparation for a first period or a data period of the next line (in the display Bank last cycle), this time period rc ^ actually a slice scanning time , the display driving during the same period in the gradation display without the same cycle is repeated for all of the counter output gradation display screen will be completed, which is characterized by all of the driving portion can be shared, save a lot of hardware device. FIG. 2 shown seen as a process time slice scan standard gray scale control from the figure, the data between "0 to 255 is still displayed, from 1 to # 255 are time slice 7 ^ 255, since O is the display data does not take up the time period, the line period 7 = 255X 7I, k;? and the frame period LX & 7S two adjacent points of the four-line display data, values ​​of O, 1, 51 and 255, in the first time slice row H),显示数据分别为0, 1, 51, 255,这些数值代表了这几个象素点的灰度级数据;在经过比较器7输出在第一个时间片的显示值分别为0, 1, 1, 1;从图中可以看到在第一个时间片各个象素点的实际显示时间为0, 0, 7y25兄,7:/^55Z。在第二个时间片(#二2),显示数据仍然分别为O, 1, 51, 255,在经过比较器7输出在第二个时间片的显示值分别为0, 0, 1, 1;第二个时间片各个象素点的实际显示时间为o, 0, 7!/?5"5l,7:/?5况。不过在第五十二个时间片(#=52),显示数据在经过比较器7输出后,仅有最后一个点的输出数值保持为1,显示值分别为o, 0, 0, 1;各个象素点的实际显示时间为0, 0, 0, 7;/^5z。 H), the display data are 0, 1, 51, 255, these values ​​represent the gray scale data of several pixel dots; the output of the comparator 7 via the display value of the first time slice 0, respectively, 1, 1, 1; can be seen from the figure the actual display time of each pixel point of a time slice 0, 0, 7y25 brother, 7: / ^ 55Z at a second time slice (# = 2. ), the display data is still are O, 1, 51, 255, the output of the comparator 7 in the display value of the second elapsed time slice 0, 0, 1, 1, respectively; each of the pixel dots of a second time slices the actual display time o, 0, 7/5 "5l, 7:!?? / 5 in a fifth case, however twelve time slots (# = 52), displaying data output through the comparator 7 only. the last output value is maintained at a point 1, the display values ​​of o, 0, 0, 1; actual display time of each pixel point is 0, 0, 0, 7; / ^ 5z. 可以看到,根据显示数据,第一点没有显示时间,第二点显示时间为1个时间片,第三点显示时间为51个时间片,第四点为255个时间片,因此最后这四个相邻点的实际显示时间为o, 7:/255l, 5177255l, 2557i/255l;对应显示数据为0, 1, 51, 255;完成了显示屏的灰度级显示。 Can be seen, according to the display data, the display time is not the first point, the second point of the display time is 1 time slice, the third point of time the display time sheet 51, a fourth point of 255 time slices, so the last four the actual display time for adjacent points o, 7: / 255l, 5177255l, 2557i / 255l; corresponding to display data is 0, 1, 51, 255; completed display gray scale display. 在标准时间片扫描灰度级控制方法中,针对扫描面积为lxv基本驱动点阵控制模块,帧周期z;,帧频率/s二i/z;;行或列扫描周期37=7;/厶行或列扫描频率九二1/k二z /7;二丄./s;设显示的灰度级为"s,即行或列时间片7b^数量为„s,其时间:Tc^ =k / ws,时间片的刷新频率=",/71=& •z-/s,由于扫描为l行v列,对于当前扫描行来说,需要在每一个扫描时间片将该行或列本时间片的数据移位并锁存到对应的v列象素上去,所以最快的时钟为列或行数据移位时钟,其时间周期为J;, 二:Tc^ /k,频率=F/rc^ =^szpvs;在行列扫描同方向相邻基本驱动点阵之间为其中一个驱动点阵的场扫描终止行或列和与其相邻的另一个驱动点阵的场扫描起始行或列,其间扫描的时间间隔r" =rs,由于对比的反差,在驱动点阵之间的边界的相对刷新频率降为/E=i/2rs=/s/2。 In the standard scan time slice gray scale control method for driving the scanning area lxv basic dot matrix control module, the frame frequency is the frame period z ;, / s two i / z ;; row or column scanning period 37 = 7; / Si ninety-two row or column scanning frequency 1 / k two z / 7; Shang two ./s; gray scale display is provided "s, i.e., rows or columns as the number of time slots 7b ^" s, which time is: Tc ^ = k / ws, time slice refresh rate = ", / 71 = & • z- / s, since the scanning lines is l v columns for the current scan line, the need to scan each time slice in the row or column of the present time slice v shifted and latched into the column of pixels up, the fastest clock corresponding to column or row data shift clock for a time period of two J ;,: Tc ^ / k, the frequency = F / rc ^ = ^ szpvs; substantially between adjacent dot row drive scanning the same scanning direction lattice in which a drive field to terminate adjacent row or column and its drive another dot matrix field scanning start row or column, during the scanning interval r "= rs, due to the contrast of the contrast, in the boundary between the relative refresh frequency drive is reduced to a dot / E = i / 2rs = / s / 2. 时间片扫描灰度级控制方法也存在一定的缺点,其首先面临系统的运行速度问题,因为时间片扫描灰度级控制方法的实质是以时间换取硬件,显然对于时间的要求就会更加严格。 Time slice scanning grayscale control method, there are some disadvantages faced its first operating speed of system problems, because the essence of time slice scanning grayscale control method is to trade time for hardware, apparently will be more stringent requirements of time. 设扫描行数L- 16,扫描列数V- 128,行时间片7bLK数量为255;则扫描时间片rcLK为<formula>formula see original document page 5</formula>按照无闪烁的最低要求,rs^"40w^因此可以得到rc"的时间为<formula>formula see original document page 5</formula>另一方面,在每个时间片内,列向数据均需要移位锁存完毕,设列数据移位脉冲周期为7;h,则有rshUl28=76. 59朋(3)其速率为13M,移位的速度已经接近极限,而且稳定性也会受到一定的影响。 Set number of scanning lines L- 16, the number of scanning columns V- 128, line 255 is the number of time slices 7bLK; the slice scanning time is rcLK <formula> formula see original document page 5 </ formula> minimum requirements according to flicker, rs ^ "40w ^ can be obtained rc" time is <formula> formula see original document page 5 </ formula> on the other hand, in each time slice, the data column shift latches require complete, the column data provided shift pulse period is 7; h, there rshUl28 = 76 59 Points (3) the rate of 13M, the displacement speed has reached the limit, and the stability will be affected to some degree. 由于大型平板显示屏的显示是分区进行的,即显示屏由许多LXV基本驱动点阵部分组成的,每个基本驱动点阵的场同步信号同显示屏的场同步信号一致,当所有基本驱动点阵同时完成一场的扫描时,相当整个显示屏幕完成一场的扫描。 , Consistent with the field synchronizing signal on the display since the display screen is a large flat partition, i.e., the display driving by a number of substantially LXV each elementary dot part of the dot driving field sync signal, the driving point when substantially all when the array while completing a scan, the entire display screen is quite a complete scan. 由于每个基本驱动点阵的场同步信号是完全同步的, 从而带来以下问题:在行(列)扫描同方向相邻基本驱动点阵之间为其中一个驱动点阵的场扫描终止行(列)和与其相邻的另一个驱动点阵的场扫描起始行(列), 其间扫描的时间间隔正好为一场的时间7;^"40/^,由于对比的反差,容易使观察者产生闪烁的感觉,影响显示屏的显示效果,主要表现为驱动点阵之间明显的闪动条纹和同行(列)扫描垂直方向的运动畸变。发明内容:为了解决现有技术存在的驱动点阵之间明显的闪动条纹和同行或列扫描垂直方向的运动畸变等缺点,本发明采用改变现有技术中行列扫描同时间片扫描的相互关系的方法,目的是提供一种平板显示屏行列时间片分布重组扫描调制方法。本发明采用的技术方案:选择^的数值,将扫描面积为LXV的基本驱动点阵的扫描周期分为^个 Since each basic drive dot matrix field synchronizing signal is fully synchronous, leading to the following problems: the row (column) scanning substantially the same direction between adjacent drive in which a dot matrix field scanning drive line termination ( column) and another dot adjacent thereto driving field scanning start row (column), during the scanning interval of a time exactly 7; ^ "40 / ^, due to the contrast between the contrast, the observer easily flickering feeling, impact screen display, mainly for the obvious flicker stripes and colleagues (column) drive between the lattice distortion of the scanning movement in the vertical direction Summary: in order to solve the matrix drive in the prior art significant flashing and streaks between peers or column scanning movement in the vertical direction distortion and other shortcomings, the present invention is by changing the relationship between the scan line with the prior art scan time slice method, flat screen object to provide a time line recombinant scanning the modulation method employed in the present invention the distribution sheet technical solutions: ^ select the value of the scan area LXV basic drive period is divided into a scanning dot matrix a ^ 段,在每一个阶段内对基本驱动点阵完成一次扫描过程,新的行扫描周期7^'=7;/ aA:),在新的行扫描周期完成w/的调制;其中7;为扫描面积为LXV的基本驱动点阵的帧周期,L为基本驱动点阵的扫描行数,V为基本驱动点阵的扫描列数,显示的灰度级为"s, &为大于1小于Ws的正整数,A能被A:整除,ws=A.<, "/为正整数;每完成一个阶段的扫描过程后,进行下一个阶段的扫描,直至完成^个阶段的扫描过程。本技术方案中帧周期仍为rs,帧频率/s = i/rs,在厶不变化的条件下,灰度级"s不在一个r^7;〃内完成,ws=i^ws',其中"s'为正整数,在新的扫描行或列完成&'的调制,在一个7;内,扫描的行数或列数就成为厶=/: •/,新的行或列扫描周期7/=7;/ (H ),行或列扫描频率/l、1/ 7V 二A .丄./s;新的行或列时间片rcljK数量为《s',其时间7,c^'=71/《= )/(ws/A: )二7y"s,同7UK完全相同,其刷 Segments, in each stage to complete the basic driving a dot matrix scanning process, the new row scanning period 7 ^ '= 7; / aA :), complete w / modulated in a new line scan period; wherein 7; scanning LXV area basic drive frame period dot, L is the number of scanning lines of the lattice basic drive, V is the number of lattice basic drive scan sequence, gray scale display is "s, & Ws is greater than 1 less than a positive integer, a can be a:.. divisible, ws = a <, "/ is a positive integer; a scanning process after each stage, the next stage of the scanning, the scanning process until the completion of stage ^ aspect of the present RS remains in the frame period, frame rate / s = i / rs, under the condition Si is not changed, the gray level "s not a r ^ 7; completed within 〃, ws = i ^ ws ', wherein" s' is a positive integer, in a new scan line or columns & apos modulation, in a 7; the number of rows or columns scanned becomes Si = /: • /, a new row or column scanning period 7 / = 7 ;. / (H), the row or column scanning frequency / l, 1 / 7V II a Shang ./s; new time slice rows or columns of rcljK "s ', which time 7, c ^' = 71 /" =) / (ws / A:) two 7y "s, 7UK identical with that brush 频率/c^' =n。 Frequency / c ^ '= n. /r£=〜 心/s。 / R £ = ~ heart / s. 新的列或行数据移位时钟的时间周期为i;A'=raA//F= rc"/r,频率/sh'-r^CM、"s丄^/s,维持不变。 New column or row data shift clock for the time period i; A '= raA // F = rc "/ r, the frequency / sh'-r ^ CM," s Shang ^ / s, remain unchanged. 可以看到,此时新的行或列扫描周期r/=rs/ (丄i ),行或列扫描频率/l;1/iV .l./s;但是由于"s二a ."s',所以并没有降低显示的灰度级数量ws,同时基本驱动点阵控制的扫描面积lx v也无变化。 Can be seen that, at this time a new row or column scanning period r / = rs / (Shang I), the row or column scanning frequency / l; 1 / iV .l / s;. However, due to. "Two S a" s' , it does not reduce the number of gray levels displayed ws, substantially simultaneously driving the scan area are also controlled lx v lattice unchanged. 这样,在仃或列扫描同万向相邻基本驱动点阵之间其中一个驱动点阵的场扫描起始行或列和另一个驱动点阵的场扫m^冬止行或列之间扫描的吋间间隔7T二7;/A ,驱动点阵之间的边界的相对刷新频率为/E'二l/2 7V"二々-/乂2;当A/2〉1时,驱动点阵之间明显的闪动条纹和同行或列扫描垂直方向的运动边缘畸变等缺陷就会逐步改善,当^/2>5时,上述缺陷就会被完全克服。本发明的有益效果:1、 采用混合分布的原理,克服了原有时间片扫描方法驱动点阵之间明显的闪动条纹和同行或列扫描垂直方向的运动边缘畸变的缺点。2、 维持了原有时间片扫描方法数据传输速率和数据移位时钟的较低频率。3、 针对实际的灰度级&,适当选择新的行或列扫描周期r/内的时间片数量"5'二&//:,控制新的行或列扫描频率/1;=1/ 7V 二A.丄./s,使用灵活方便。 Thus, the column scanning Ding or substantially the same between adjacent universal driver driving a dot matrix wherein the row or column of the field scan start and scan another drive dot matrix field stop winter m ^ between rows or column scanning 7T interval between two 7 inch; opposite the boundary between the refresh frequency / a, the drive of the dot / E 'two l / 2 7V "two 々 - / qe 2; when a / 2> 1, driving the dot significant flashing and streaks between peers or column scanning movement vertical edge distortions and other defects will gradually improve, when the ^ / 2> 5, this drawback is completely overcome by the beneficial effects of the present invention are: 1, using principle mixture distribution, clearly overcome the shortcomings of existing flicker stripe between the peer and a method of driving a dot scanning time slice or column scanning movement vertical edge distortion .2, maintaining the original time-slice scanning method for data transfer rates .3 and less frequent data shift clock, the actual grayscale & appropriately select a new row or column of the number of time slices scanning period r / in '5' & @ :, two new row or control column scanning frequency / 1; = 1 / 7V II A. Shang ./s, flexible and convenient to use. 4、 在相同的边界的相对刷新频率下,可以增加扫描控制的面积KxL, 进一步降低硬件的代价;或是增加单位时间片的数量,提高图象的显示质附图说明:图1为背景技术灰度级调制控制电路示意图。 4, at the same relative refresh frequency boundary scan control KxL area can be increased, further reducing the cost of the hardware; or increase the number of sheets per unit time and improve the quality of the display image BRIEF DESCRIPTION OF DRAWINGS: Figure 1 is a background art control circuit schematic of the grayscale modulator. 图2为标准时间片扫描灰度级控制方法的工作过程示意图。 Figure 2 is a schematic view of a standard scan time slice operation of the gradation level control method. 图3本发明实施例1的时间片分布重组扫描调制方法工作过程示意图。 Time slice 3 of Example 1 of the present invention recombinant distribution diagram scanning processes and the modulation method. 图4本发明实施例2的时间片分布重组扫描调制方法工作过程示意图。 Example 2 time slices embodiment of the present invention Figure 4 a schematic view of the distribution of recombinant scanning processes and the modulation method. 具体实施方式:本发明是通过改变现有技术电路中逻辑控制阵列的时序来实现的,现有技术电路中逻辑控制阵列、计数器、比较器、列驱动器全部集成在Altera 公司生产的ACEX EP1K50QC208逻辑控制芯片中。 DETAILED DESCRIPTION: The present invention is achieved by changing the timing of the control logic circuit array of the prior art, the prior art logic array control circuit, a counter, a comparator, all of the column driver integrated ACEX EP1K50QC208 logic control Altera Company chip. 实施例1 :本发明实施例1是行列时间片分布重组扫描调制方法^ =3, Ws=3.ws' 时完成行列时间片分布重组,新的行扫描周期7V = 7V (3£ ),其工作过程如图3所示:其中,显示数据在0到255之间,由于灰度级数目为&=37^'-255, 所以同灰度级相对应的时间片rcyc的数量vl/是从1到255共255个。 Example 1: Example 1 of the present invention, a modulation method is a recombinant scanning line time slot distribution ^ = 3, the time slot distribution recombinant completion ranks when Ws = 3.ws', a new row scanning period 7V = 7V (3 £), which working process shown in Figure 3: wherein the display data between 0 to 255, since the number of gray levels is 37 = & ^ '- 255, the number of gray level corresponding to the same time slice of rcyc vl / from 1 to 255 of 255. 在背景技术中的行周期71 = 255Xrcuc;帧周期rs = LX7b除了帧周期没有变化以外,出现以下调整:新的行扫描周期r/=rs/ ) 二7;/3丄二85X7buc,帧周期则可以表示为7;二ZX7L二3XLX7i;;该行的五个相邻点显示数据《值分别为0, 1, 84, 169和255,这些数值分布在新的行扫描中; 在^二3^V的条件下,时间片扫描被分成3个阶段,在规定的帧周期内,新的行扫描周期为原来的三分之一。 Line period in the background art 71 = 255Xrcuc; frame period rs = LX7b except that frame period has not changed as, the following adjustments: a new line scanning period r / = rs /) two 7; / 3 Shang two 85X7buc, the frame period is 7 can be expressed as; two 3XLX7i ;; ZX7L two adjacent points of the five line display data "values ​​are 0, 1, 84, 169 and 255, the distribution of these values ​​in the new row scanning; ^ at ^ = 3 V under conditions of, the scanning time slice is divided into three stages, in the predetermined frame period, a new row to the original third scanning period. 在第一阶段新行的第一个时间片(,l),显示数据分别为O, 1, 84, 169和255,这些数值代表了这几个象素点的灰度级数据,在经过比较器输出在第一个时间片的显示值分别为0, 1, 1, 1, 1;从图中可以看到在第一个时间片各个象素点的实际显示时间为0, 7>^^1, jyi^z, 7y!兄,在第一阶段新行的第二个时间片(#二2),显示数据仍然分别为0, 1, 84, 169和255,经过比较器输出在第二个时间片的显示值分别为0, 0, 1, 1, 1;第二个时间片各个象素点的实际显示时间为o, o, rs/i^,5Z, rs/!5Z, j;/i^z。 In the first stage a new time slice row (, L), the display data are O, 1, 84, 169 and 255, these values ​​represent the gray scale data of several pixel dots, after comparison in the display output value of the first time slice are 0, 1, 1, 1, 1; can be seen from the figure actually displayed each pixel point of the first time slice 0, 7> ^^ 1, jyi ^ z, 7y! brother, a new row in the first stage a second time slice (# = 2), respectively, the display data is still 0, 1, 84, 169 and 255, through the second comparator output display value time slices respectively 0, 0, 1, 1, 1; actual display time of each pixel point of the second time slice o, o, rs / i ^, 5Z, rs / 5Z, j!; / i ^ z. 在第一阶段新行的最后一个时间片(#二85),显示数据仍然分别为O, 1, 84, 169和255,经过比较器输出在最后一个时间片的显示值分别为O, 0, 0, 1, 1;第一阶段新行的最后一个时间片各个象素点的实际显示时间为O, 0, 0, 7;/?55Z, rs/^5L。 In the last line of a new time slice a first stage (two # 85), the display data is still are O, 1, 84, 169 and 255, the comparator output through the display value of the last time slice are O, 0, 0, 1, 1; each pixel actual display time of the last point of the first stage of a new time slice row is O, 0, 0, 7; / 55Z, rs / ^ 5L?. 此时第一阶段新行在该行的时间片扫描结束,开始转入下一个扫描行的第一阶段时间片扫描;当全部的扫描行的第一阶段时间片扫描结束以后,第二阶段时间片扫描在本行重新开始;在第二阶段新行的第一个时间片(,86),显示数据分别为O, 1, 84, 169和255,这些数值代表了这几个象素点的灰度级数据;在经过比较器输出在第一个时间片的显示值分别为O, 0, 1, 1, 1;从图中可以看到在第一个时间片各个象素点的实际显示时间为0, 0,7;/i^5厶7;/i^兄,z;/i^兄。 At this time the first phase of a new line scan of the line end piece, into the first phase of the start time of the next slice scan of a scanning line; after the end of the time slice when the scanning of the first stage all the scanning lines, the second stage time the Bank sheet scan start again; the first time slice (86) in the second stage of the new line, the display data are O, 1, 84, 169 and 255, which represent the values ​​of several pixel dots gray scale data; actually displayed at each pixel can be seen a first time slice from a point in the figure; the comparator output through the display value of the first time slice are O, 0, 1, 1, 1 time 0, 0,7; / i ^ 5 Si 7; / i ^ brother, z; / i ^ brother. 在第二阶段新行的第二个时间片(,86),显示数据分别为O, 1, 84, 169和255,这些数值代表了这几个象素点的灰度级数据,在经过比较器输出在第二个时间片的显示值分别为0, 0, 0, 1, 1;从图中可以看到在第二个时间片各个象素点的实际显示时间为0, 0, 0, Ts/^5Z, :Ts/^(5Z。不过在第二阶段新行的最后一个时间片(#二170),经过比较器输出后,仅有最后一个点的输出数值保持为1,这样第二阶段新行的最后一个时间片各个象素点的实际显示时间为o, o, o, o, rs/i^5z。此时第二阶段新行在该行的第二个阶段时间片扫描(86-170时间片)结束,开始转入下一个扫描行的第二个阶段时间片扫描(86-170时间片);当全部的扫描行的第二个阶段时间片扫描结束以后,第三阶段时间片扫描在本行重新开始;在第三阶段新行的第一个时间片(#171), 显示数据分别为0 In the second time slice (86) a second stage of the new line, the display data are O, 1, 84, 169 and 255, these values ​​represent the gray scale data of several pixel dots, after comparison the output value of the second of the display time of tablets was 0, 0, 0, 1, 1; can be seen from the figure actually displayed each pixel point of the second time slice 0, 0, 0, Ts / ^ 5Z,:. Ts / ^ (5Z but the last time slice in the second stage a new row (two # 170), after the comparator output, the output value of only the last point 1 is maintained, so that the first the actual display time of each pixel point in the last row of a new time slice is a two-stage o, o, o, o, rs / i ^ 5z. At this time the second stage of a new line in the second row of the slide scanning phase time (86-170 time slice) ends, the second stage began to turn the next scan line slice scanning time (time slice 86-170); after the end of the time slice when the second stage of scanning all of the scanning lines, a third phase time slice scan start again at the bank; the first stage of a new time slice in the third row (# 171), the display data are respectively 0 1, 84, 169和255,在经过比较器输出在第一个时间片的显示值分别为0, 0, 0, 0, 1;从图中可以看到在第三阶段新行的第一个时间片各个象素点的实际显示时间为O, 0, 0, 0, z;/i^兄。在第三阶段新行的最后一个时间片(#=255),各个象素点的实际显示时间为0, 0, 0, 0, r/i^5Z。 此时第三阶段新行在该行的第三阶段时间片扫描结束,开始转入下一个扫描行的第三阶段时间片扫描;当全部的扫描行的第三阶段时间片扫描结束以后,最后这五个相邻点的实际显示时间为0, rs/255L, 847;/255L, 169 rs/255L, 255rs/255L;对应显示数据为0, 1, 84, 169和255;完成了显示屏的灰度级显示。同时,新的行扫描周期r/=rs/ a.3),行扫描频率/i^i/7i'-3x./s,提高了3倍,使得3/2大午预先设定的数值l,初步克服了驱动点阵之间明显的闪动条纹和同行(列)扫描垂直方向的运动边缘畸变 1, 84, 169 and 255, the comparator output through the display value of the first time slice are 0, 0, 0, 0, 1; at the third stage of a new first row can be seen from FIG. the actual display time of each pixel point of the time slice is O, 0, 0, 0, z; / i ^ brother last time slice in the third stage of a new line (# = 255), each pixel point of the actual display. time 0, 0, 0, 0, r / i ^ 5Z at this stage a new line in the third row of the third stage of the scanning end time slice, into the third stage starts the next scan line a scan time slice.; when the third phase ends the time slice scanning of all scanning lines, the display time of this actual last five adjacent points is 0, rs / 255L, 847; / 255L, 169 rs / 255L, 255rs / 255L; corresponding to the display data is 0, 1, 84, 169 and 255; completed simultaneously display gray scale display, the new line scanning period r / = rs / a.3), line scanning frequency / i ^ i / 7i'-3x. ./s, increased three times, so that a large value of L l 3/2 preset initial overcome significant flashing and streaks peer (columns) matrix between scan driving vertical movement of the edge distortion 缺陷,提高了显示屏的显示效果。 Defects and improve the display effect of the display. 实施例2:本发明实施例2是行列时间片分布重组扫描调制方法々=5和/v^tV时完成行列时间片分布重组新的行扫描周期=7;/ (5Z ),其工作过程如图4所示:其中,显示数据在0到255之间,由于灰度级数目为"s二5/V-255, 所以同灰度级相对应的时间片rcuc的数量#是从1到255共255个。在背景技术中的行周期21 = 255Xrcuc;帧周期rs 二LXZL;除了帧周期没有变化以外,出现以下调整:新的行扫描周期7V二z;/) 二z;/5/:二51 xrcuc,帧周期则可以表示为7; 二lxtl二5xlxjV;该行的五个相邻点显示数据,值分别为O, 1, 84, 169和255, 这些数值分布在新的行扫描中;在W^5tV的条件下,时间片扫描被分成5个阶段,在规定的帧周期内,新的行扫描周期为原来的五分之一。在第一阶段新行的第一个时间片(,l),显示数据分别为O, 1, 84, 169和255,这些数值代表了这几个象素点的灰度级数据;在经过比较器输 Example 2: Example 2 of the invention ranks of the time slot distribution recombinant scanning modulation method 々 = 5 and / v ^ completion ranks time slot distribution recombinant new row scanning cycle tV = 7; / (5Z), of their work, such as Figure 4: wherein the display data between 0 to 255, since the number of gray levels is "s two 5 / V-255, so that the same gray level corresponding to the number of time slices rcuc # from 1 to 255 of 255 line periods in the background art 21 = 255Xrcuc; frame period rs two LXZL; except that frame period has not changed except that the following adjustments: a new line scanning period 7V two z; /) two z; / 5 /: two 51 xrcuc, the frame period can be expressed as 7; two lxtl two 5xlxjV; five adjacent points of the line display data, values ​​of O, 1, 84, 169 and 255, the distribution of these values ​​in the new row scanning ; ^ 5tV under conditions of W, the scanning time slice is divided into five stages, in a predetermined frame period, a new row scanning period is one-fifth of the first stage of a new time slice in the first row. (, L), the display data are O, 1, 84, 169 and 255, these values ​​represent the gray scale data of several pixel dots; the output of the comparator via 出在第一个时间片的显示值分别为0, 1, 1, 1, 1;从图中可以看到在第一个时间片各个象素点的实际显示时间为o, t;/?5兄,rs/i^5i, 7;/i^5" 7;/历兄。 Displaying a value in the first time slice are 0, 1, 1, 1, 1; can be seen from the figures the actual display time of each pixel point of a first time slice o, t;? / 5 brother, rs / i ^ 5i, 7; / i ^ 5 "7; / calendar brother. 在第一阶段新行的第二个时间片(#=2),显示数据仍然分别为O, 1, 84, 169和255,经过比较器输出在第二个时间片的显示值分别为O, 0, 1, 1, 1;第二个时间片各个象素点的实际显示时间为0, 0, 7;/25兄,2v^55Z, 7;/^兄。 In the first stage of a second row of new time slices (# = 2), the display data is still are O, 1, 84, 169 and 255, the comparator output through the display value of the second time slices respectively is O, 0, 1, 1, 1; actual display time of each pixel point of the second time slice 0, 0, 7; / brother 25, 2v ^ 55Z, 7; / ^ brother. 在第一阶段新行的最后一个时间片(if二51),显示数据仍然分别为O, 1, 84, 169和255, 经过比较器输出在最后一个时间片的显示值分别为O, 0, 1, 1, 1;第一阶段新行的最后一个时间片各个象素点的实际显示时间为0, 0, 7;/25^Z,rs/^5"5z, r/i^兄。此时第一阶段新行在该行的第一阶段时间片扫描结束,开始转入下一个扫描行的第一阶段时间片扫描;当全部的扫描行的第一阶段时间片扫描结束以后,第二阶段时间片扫描在本行重新开始;在第二阶段新行的第一个时间片(,52),显示数据分别为O, 1, 84, 169和255,这些数值代表了这几个象素点的灰度级数据;在经过比较器输出在第一个时间片的显示值分别为O, 0, 1, 1, 1;从图中可以看到在第一个时间片各个象素点的实际显示时间为0, 0, 7V^55Z, rs/^^I, JV^55L。在第二阶段新行的第三十三个时间片(,84), In the last line of a new time slice a first stage (two IF 51), the display data is still are O, 1, 84, 169 and 255, the comparator output through the display value of the last time slice are O, 0, 1, 1, 1; each pixel actual display time of the last point of the first stage of a new time slice row is 0, 0, 7; / 25 ^ Z, rs / ^ 5 "5z, r / i ^ this brother. when a new line in the first stage of the first stage of the end of the scan line time slice, the time slice starts scanning the first stage into the next scanning line; after the end of the time slice when the scanning of the first stage all the scanning lines, the second phase time slice scanning restarts the Bank; the first stage of a new time slice in the second row (52), the display data are O, 1, 84, 169 and 255, which value represents pixels these gray level data points; after the display value comparator outputs a first time slice are O, 0, 1, 1, 1; each pixel point can be seen in a first time slice from FIG. the actual display time is 0, 0, 7V ^ 55Z, rs / ^^ I, thirty-three time slice JV ^ 55L. in the second stage of a new line (84), 示数据分别为O, 1, 84, 169和255, 这些数值代表了这几个象素点的灰度级数据;在经过比较器输出在第二阶段新行的第三十三个时间片的显示值分别为0, 0, 1, 1, 1;从图中可以看到在第二阶段新行的第三十三个时间片各个象素点的实际显示时间为0,o, rs/^^z, 7;/i^兄,rs/?55z。不过在第二阶段新行的第三十四个时间片(,85),显示数据分别为O, 1, 84, 169和255,这些数值代表了这几个象素点的灰度级数据;在经过比较器输出在第二阶段新行的第三十四个时间片的显示值分别为O, 0, 0, 1, 1;从图中可以看到在第二阶段新行的第三十四个时间片各个象素点的实际显示时间为0, 0, 0, 2V^反兄, j;/i^兄。在第二阶段新行的最后一个时间片(#=102),经过比较器输出后,只有最后两个点的输出数值保持为l,这样第二阶段新行的最后一个时间片各个象素点的实 Data are shown as O, 1, 84, 169 and 255, these values ​​represent the gray scale data of several pixel dots; the comparator output through thirty-third time slice in the second stage of the new line show values ​​of 0, 0, 1, 1, 1; can be seen from the figures the actual display time of each pixel of the thirty-third point in the second stage of the new time slice row is 0, o, rs / ^ ^ z, 7; / i ^ brother, rs / 55z, but in the second stage of the thirty-fourth line of the new time slices (85), the display data are O, 1, 84, 169 and 255, the?. value represents the gray level data of several pixel dots; thirty-fourth the value of the display time slices through the second stage of the comparator output in the new row are O, 0, 0, 1, 1; from can be seen in FIG actual display time of each pixel point of the third fourteen new time slice row in the second stage is 0, 0, 0, 2V ^ anti brother, j; / i ^ brother in the second stage. the last row of a new time slice (# = 102), after the comparator output, only the output value of the last two points L is maintained, the real points of each pixel so that the last time slice a second phase of the new line 显示时间为o, o, o, z;/i^兄,z;/25见。此时第二阶段新行在该行的第二个阶段时间片扫描(52-102时间片」结束,开始转入下一个扫描行的第二个阶段时间片扫描(52-102时间片);当全部的扫描行的第二阶段时间片扫描结束以后,第三阶段时间片扫描在本行重新开始;在第三阶段新行的第一个时间片(,103), 显示数据分别为O, 1, 84, 169和255,在经过比较器输出在第三阶段新行的第一个时间片的显示值分别为O, 0, 0, 1, 1; 从图中可以看到在第三阶段新行的第一个时间片各个象素点的实际显示时间为O, 0, 0, rs/i^5Z, rs/i^5L。 Display time is o, o, o, z; / i ^ brother, z; / 25 see a new line in this case the second phase of the second stage of the scan line time slice (the end of the time slice 52-102 "starts. into the next scan line a second time slice scanning stage (time slice 52-102); after the end of the time slice when the second phase of the scanning of all the scanning lines, a third stage in the time slice scanning restarts Bank; in a first time slice (103) of the third stage of the new line, the display data are O, 1, 84, 169 and 255, the value displayed in the first time slice through the output of the comparator in the third stage of the new line are O, 0, 0, 1, 1; can be seen from the figures the actual display time of each pixel point of the first stage of a new time slice in the third row is O, 0, 0, rs / i ^ 5Z , rs / i ^ 5L. 在第三阶段新行的最后一个时间片(#二153),各个象素点的实际显示时间也为0, 0, 0, rs/?55Z , 7;々55Z。 Finally, a new time slice row in the third stage (two # 153), the actual display time of each pixel point is also 0, 0, 0, rs / 55Z, 7;? 々55Z. 此时第三阶段新行在该行的第三阶段时间片扫描结束,开始转入下一个扫描行的第三阶段时间片扫描;当全部的扫描行的第三阶段时间片扫描结束以后,第四阶段时间片扫描在本行重新开始;在第四阶段新行的第一个时间片(,154),显示数据分别为O, 1, 。 At this stage a new line in the third row of the third stage of the scanning end time slice, into the third stage starts the next scan line a scan time slice; after the end of the time slice when scanning all of the scanning lines of the third stage, the first four-stage time slice scanning restarts the Bank; a first time slice (154) in a fourth stage of the new line, the display data are O, 1,. 4, 169和255,在经过比较器输出在第四阶段新行的第一个时间片的显示值分别为0, 0, 0, 1, 1;从图中可以看到在第四阶段新行的第一个时间片各个象素点的实际显示时间为O, 0, 0, jy25"51, rs/?^z。不过在第四阶段新行的第十七个时间片(,170),显示数据分别为O, 1, 84, 169和255,这些数值代表了这几个象素点的灰度级数据;在经过比较器输出在第四阶段新行的第十七个时间片的显示值分别为O, 0, 0, 0, 1;从图中可以看到在第四阶段新行的第十七个时间片各个象素点的实际显示时间为0, 0, 0, 0,rs/i^5Z。在第四阶段新行的最后一个时间片(#=204),各个象素点的实际显示时间也为O, 0, 0, 0 , rs/255Z。此时第四阶段新行在该行的第四阶段时间片扫描结束,开始转入下一个扫描行的第四阶段时间片扫描;当全部的扫描行的第四阶段时间片扫描结束 4, 169 and 255, the display value of the first time slice of passes in the fourth comparator output stage of the new row are 0, 0, 0, 1, 1; can be seen from the figure in the fourth stage of the new row the actual display time of each pixel point of a time slice is O, 0, 0, jy25 "51, rs /? ^ z. However, in a fourth time slice a seventeenth stage of the new line (170), display data are O, 1, 84, 169 and 255, these values ​​represent the gray scale data of several pixel dots; displayed in a seventeenth time slot passes the comparator output at the fourth stage of the new line values ​​of O, 0, 0, 0, 1; can be seen from the figure the actual display time of each pixel point of the fourth time slice a seventeenth stage of the new line is 0, 0, 0, 0, rs / i ^ 5Z. in the fourth stage the last row of a new time slice (# = 204), the actual display time of each pixel point is also O, 0, 0, 0, rs / 255Z. at this time the new fourth stage end of the time slice row scanning line the fourth stage, the fourth stage began to turn the next scan line a scan time slice; the fourth stage when all the scanning lines of the scanning end time slice 后,第五阶段时间片扫描在本行重新开始;在第五阶段新行的第一个时间片(,205),显示数据分别为0, 1, 84, 169和255,在经过比较器输出在第五阶段新行的第一个时间片的显示值分别为0, 0, 0, 0, 1;从图中可以看到在第五阶段新行的第一个时间片各个象素点的实际显示时间为O, 0, 0, 0, rs/?55Z。在第五阶段新行的最后一个时间片(#=255),各个象素点的实际显示时间也为0, 0, 0,0, rs/i^<5Z。此时第五阶段新行在该行的第五阶段时间片扫描结束,开始转入下一个扫描行的第五阶段时间片扫描;当全部的扫描行的第五阶段时间片扫描结束以后,最后这五个相邻点的实际显示时间为O, rs/255L, 847; /255L, 169 rs/255L, 255rs/255L;对应显示数据为0, 1, 84, 169和255; 完成了显示屏的灰度级显示。同时,新的行扫描周期r—rs/a.5),行扫描频率/1;=1/71'=5丄-/5, After the fifth stage time slice scanning restarts the Bank; a first time slice (205) in the fifth stage of the new line, the display data are 0, 1, 84, 169 and 255, after the output of the comparator in a fifth stage the display value of the first time slice of the new line are 0, 0, 0, 0, 1; see each pixel point of the first stage of a new time slice in the fifth row from FIG. the actual display time is O, 0, 0, 0, rs /? 55Z. the last time slice in the fifth stage of a new line (# = 255), the actual display time of each pixel point is also 0, 0, 0, 0, rs / i ^ <5Z at this stage a new line in the fifth row of the fifth stage of the end of the time slice scanning, into the fifth stage begins the next scan line a scan time slice; when all of the first scan line after the five-stage time slice scanning ends, the actual display time of the last five adjacent dots is O, rs / 255L, 847; / 255L, 169 rs / 255L, 255rs / 255L; corresponding to display data is 0, 1, 84, 169 and 255; completed simultaneously display gray scale display, the new row scanning period r-rs / a.5), line scanning frequency / 1; = 1/71 = 5 Shang - / 5. 高了5倍,使得5/2大于预先设定的数值l,更好地克服了驱动点阵之间明显的闪动条纹和同行(列)扫描垂直方向的运动边缘畸变缺陷,提高了显示屏的显示效果。 5 times higher, so that the value is greater than a preset l 5/2, better overcome significant flashing and streaks peer (columns) matrix between scan driving vertical movement of the edge distortion defects, improving the display display.

Claims (3)

  1. 1. 一种平板显示屏行列时间片分布重组扫描调制方法,其特征在于采用的技术方案为:选择k的数值,将扫描面积为L×V的基本驱动点阵的扫描周期分为k个阶段,在每一个阶段内对基本驱动点阵完成一次扫描过程,新的行扫描周期TL′=Ts/(L·k),在新的行扫描周期完成ns′的调制;其中Ts为扫描面积为L×V的基本驱动点阵的帧周期,L为基本驱动点阵的扫描行数,V为基本驱动点阵的扫描列数,显示的灰度级为ns,k为大于1小于ns的正整数,ns能被k整除,ns=k·ns′,ns′为正整数;每完成一个阶段的扫描过程后,进行下一个阶段的扫描,直至完成k个阶段的扫描过程。 1. A flat panel display line scanning time slot distribution recombinant modulation method, characterized in that the technical solutions adopted are: the value of k is selected, the scan area is substantially L × V driver of the dot matrix scanning period is divided into stages k , in each stage is completed during one scan of the basic dot matrix drive, the new scan line period TL '= Ts / (L · k), ns is completed in the new line scan period' modulation; wherein Ts is a scanning area basic drive frame period lattice L × V, L is the number of scanning lines driven substantially lattice, V is the number of lattice basic drive scan sequence, the gray level display ns, K is less than 1 ns, greater than n integer, k NS be divisible, ns = k · ns ', ns' is a positive integer; a scanning process after each stage, the next stage of the scanning, the scanning process is completed until the k-th stage.
  2. 2. 根据权利要求1所述一种平板显示屏行列时间片分布重组扫描调制方法,其特征在于A: =3。 = 3: 2. Recombinant scanning time slot distribution modulation method, wherein A 1 according to the ranks A flat screen requirements.
  3. 3. 根据权利要求1所述一种平板显示屏行列时间片分布重组扫描调制方法,其特征在于^ =5。 3. Recombinant scanning time slot distribution modulation method, characterized in that the ^ 5 = 1 the one claimed in claim flat screen ranks.
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CN101520981B (en) 2009-04-07 2011-01-19 中国科学院长春光学精密机械与物理研究所 LED display-screen multi-set parallel weight-value time-slice scanner
CN101520980B (en) 2009-04-07 2010-10-27 中国科学院长春光学精密机械与物理研究所 LED display screen mixed weight-value time-slice scanner
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US4845473A (en) 1984-06-01 1989-07-04 Sharp Kabushiki Kaisha Method of driving a liquid crystal matrix display panel
US5815128A (en) 1994-12-27 1998-09-29 Seiko Instruments Inc. Gray shade driving device of liquid crystal display
CN1435812A (en) 2002-01-30 2003-08-13 胜园科技股份有限公司 Method for making multi-color organic LED display have uniform lightness
CN1545081A (en) 2003-11-19 2004-11-10 中国科学院长春光学精密机械与物理研 Method for modulating mixed weight distribution gray level of panel display screen

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US4845473A (en) 1984-06-01 1989-07-04 Sharp Kabushiki Kaisha Method of driving a liquid crystal matrix display panel
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