CN101226290A - Display panel, display device using same and driving method of control signal - Google Patents
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Abstract
Description
技术领域 technical field
本发明涉及一种显示装置,特别是涉及一种改善水平扫描线充电时间不足与降低功率消耗的显示面板及其应用的显示装置。The present invention relates to a display device, in particular to a display panel which improves the insufficient charging time of horizontal scanning lines and reduces power consumption, and a display device for its application.
背景技术 Background technique
薄膜晶体管液晶显示器(thin film transistor liquid crystal display,简称为TFT LCD)由于液晶本身的物理现象在动画表现的反应速度上较传统映像管慢。为了改善动态残留影像(motion blur),业界运用脉冲式显示(Impulse TypeDisplay)技术,以插入黑画面(black insertion)方式来减少画面残影的效果,来模拟与传统映像管相似原理的解决方法之外,并且提高画面更新率(framerate or refresh rate)来缩短(视觉)积分时间,达到降低模糊边缘(blur edge)的目的;另外,当业界开始普遍使用双倍画面更新率(120Hz)的趋势下,现行的结构将衍生一些问题,例如每一列水平线的时间长度将减半,尤其在高分辨率的条件下,将面临充电时间不足问题;并且还有在双倍画面更新率的条件下,为兼顾显示面板的最佳化驱动,而采用了点反转(或是2V1H)驱动方式,源极驱动器的输出正负极双态触变率(toggle rate)将会变成原来的两倍,系统的总功率消耗将成倍数成长,同时衍生出热问题,将会直接影响系统的可靠度。Thin film transistor liquid crystal display (referred to as TFT LCD) due to the physical phenomenon of liquid crystal itself, the reaction speed of animation performance is slower than that of traditional image tubes. In order to improve the motion blur, the industry uses Impulse Type Display technology to reduce the effect of image residue by inserting a black screen (black insertion) to simulate one of the solutions similar to the principle of traditional image tubes. In addition, and increase the frame rate (frame or refresh rate) to shorten the (visual) integration time, to achieve the purpose of reducing the blur edge (blur edge); in addition, when the industry began to generally use double frame rate (120Hz) under the trend , the current structure will lead to some problems, such as the time length of each column of horizontal lines will be halved, especially under the condition of high resolution, it will face the problem of insufficient charging time; and under the condition of double picture update rate, for Taking into account the optimal driving of the display panel, and adopting the dot inversion (or 2V1H) driving method, the output positive and negative polarity toggle rate of the source driver will be doubled, and the system The total power consumption will grow exponentially, and at the same time, thermal problems will be derived, which will directly affect the reliability of the system.
目前普遍采用的高分辨率的显示装置系统结构如图1所示,显示装置100的显示面板101区分为上下区块,分别由两侧的栅极驱动器,来独立控制水平扫描线的致能,且分成上下区块同步扫描,因为每一列水平扫描线的时间(H_period)=1/(画面更新率*水平扫描线次数(V_toatl)),在高分辨率应用中画面更新率为两倍。若面板没有区分为上下区块,则水平线的时间将变成原来的一半,且原来已经是达到极限的充电时间会变得更不足。所以如图1的每一区块的水平扫描线次数为原来的一半,因此水平扫描线的时间可以保持原来的长度。其中显示面板101画面反转的驱动方法,参考图2的显示面板结构图所示,M列扫描线A1~AM,其中M为正整数,上下独立区块同步扫描时,每一行数据线都需要做频繁的极性转换。请再参照图3,图3示出了为显示面板的数据映像图,当同步扫描时,其上区块扫描线A1及下区块扫描线AM/2+1在第一次同时被驱动,两区块扫描线依序由上到下被驱动,一直做到上区块扫描线AM/2及下区块扫描线AM在最后一次同时被驱动。此种系统结构会面临上下区块接合处,有画面不均的现象。且源极驱动器输出正负极驱动极性会有变换次数提高的问题。而且此方式必须先将一个区块(上区块)的数据放进内存(frame buffer),至少需存放一半画面的数据,所以也提高了系统的成本。The system structure of a high-resolution display device commonly used at present is shown in FIG. 1 . The
发明内容 Contents of the invention
本发明提供一种显示面板,满足高画面更新率操作时,能同时兼顾每一列水平扫描线的充电时间及降低功率消耗,且显示面板可以产生点反转的显示效果。The present invention provides a display panel, which can simultaneously take into account the charging time of each horizontal scanning line and reduce power consumption when operating at a high frame update rate, and the display panel can produce a display effect of dot inversion.
本发明还提供一种显示装置,其显示面板具有点反转画质的显示效果,而且满足高画面更新率操作时,能同时兼顾每一列水平扫描线的充电时间及降低功率消耗。The present invention also provides a display device, the display panel of which has the display effect of dot inversion image quality, and can simultaneously take into account the charging time of each row of horizontal scanning lines and reduce power consumption when operating at a high frame refresh rate.
本发明还提供一种显示面板,满足高画面更新率操作时,能同时兼顾每一列水平扫描线的充电时间及降低功率消耗,且面板可以产生2line反转(2V1H)的显示效果。The present invention also provides a display panel, which can simultaneously take into account the charging time of each horizontal scanning line and reduce power consumption when operating at a high frame refresh rate, and the panel can produce a 2-line inversion (2V1H) display effect.
本发明还提供一种显示装置,其显示面板具有2V1H画质的显示效果,而且满足高画面更新率操作时,能同时兼顾每一列水平扫描线的充电时间及降低功率消耗。The present invention also provides a display device, the display panel of which has the display effect of 2V1H image quality, and can simultaneously take into account the charging time of each row of horizontal scanning lines and reduce power consumption when operating at a high frame refresh rate.
为实现上述及其它目的,本发明提出一种显示面板,适用于一平面显示装置,包括M列扫描线、N行数据线及M*N个像素,其中M、N为正整数。每一行数据线包括一第一子数据线及一第二子数据线,M*N个像素排成一矩阵,令i、j为整数,且1≤i≤M,且1≤j≤N,则位置为第i列及第j行的像素表示为P(i,j),第j行的第一子数据线耦接至像素P(i,j),第j行的第二子数据线耦接至像素P(i+1,j)。To achieve the above and other objectives, the present invention proposes a display panel suitable for a flat display device, including M columns of scanning lines, N rows of data lines and M*N pixels, wherein M and N are positive integers. Each row of data lines includes a first sub-data line and a second sub-data line, M*N pixels are arranged in a matrix, let i, j be integers, and 1≤i≤M, and 1≤j≤N, Then the pixel at the i-th column and the j-th row is represented as P(i, j), the first sub-data line in the j-th row is coupled to the pixel P(i, j), and the second sub-data line in the j-th row coupled to pixel P(i+1, j).
从另一观点来看,本发明还提出一种显示装置,包括时序控制器、栅极驱动器、第一源极驱动器、第二源极驱动器及显示面板。栅极驱动器、第一源极驱动器及第二源极驱动器都耦接至时序控制器。显示面板耦接于源极驱动器与栅极驱动器之间,显示面板包括M列扫描线、N行数据线及M*N个像素,其中M、N为正整数。M列扫描线由栅极驱动器所驱动。N行数据线,其每一行数据线包括一第一子数据线及一第二子数据线,而每一行的第一子数据线由第一源极驱动器所驱动,每一行的第二子数据线由第二源极驱动器所驱动。M*N个像素排成一矩阵,位置为第i列及第j行的像素表示为P(i,j),其中i、j为整数,且1≤i≤M,且1≤j≤N,而第j行的第一子数据线耦接至像素P(i,j),第j行的第二子数据线耦接至像素P(i+1,j)。时序控制器控制栅极驱动器、第一源极驱动器及第二源极驱动器,使得当耦接至像素P(i,j)的扫描线致能时,耦接至像素P(i+1,j)的扫描线亦致能,并由第一源极驱动器将数据驱动至第j行的第一子数据线,第二源极驱动器将数据驱动至第j行的第二子数据线。From another point of view, the present invention also provides a display device including a timing controller, a gate driver, a first source driver, a second source driver and a display panel. The gate driver, the first source driver and the second source driver are all coupled to the timing controller. The display panel is coupled between the source driver and the gate driver. The display panel includes M columns of scan lines, N rows of data lines and M*N pixels, wherein M and N are positive integers. M columns of scan lines are driven by a gate driver. N rows of data lines, each row of data lines includes a first sub-data line and a second sub-data line, and the first sub-data line of each row is driven by the first source driver, and the second sub-data line of each row line is driven by a second source driver. M*N pixels are arranged in a matrix, and the pixel at the i-th column and j-th row is expressed as P(i, j), where i, j are integers, and 1≤i≤M, and 1≤j≤N , and the first sub-data line in the j-th row is coupled to the pixel P(i, j), and the second sub-data line in the j-th row is coupled to the pixel P(i+1, j). The timing controller controls the gate driver, the first source driver and the second source driver so that when the scan line coupled to the pixel P(i,j) is enabled, the scan line coupled to the pixel P(i+1,j) ) is also enabled, and the first source driver drives data to the first sub-data line in row j, and the second source driver drives data to the second sub-data line in row j.
本发明还提出一种显示面板,适用于一平面显示装置,包括M列扫描线、N行数据线、以及M*N个像素,其中M、N为正整数。N行数据线,每一行数据线包括一第一子数据线及一第二子数据线。M*N个像素排成一矩阵,位置为第i列及第j行的像素表示为P(i,j),其中i、j为整数,且1≤i≤M,且1≤j≤N,而第j行的第一子数据线耦接至像素P(i,j)及像素P(i+3,j),第j行的第二子数据线耦接至像素P(i+1,j)及像素P(i+2,j)。The present invention also proposes a display panel suitable for a flat display device, including M columns of scanning lines, N rows of data lines, and M*N pixels, wherein M and N are positive integers. N rows of data lines, each row of data lines includes a first sub-data line and a second sub-data line. M*N pixels are arranged in a matrix, and the pixel at the i-th column and j-th row is expressed as P(i, j), where i, j are integers, and 1≤i≤M, and 1≤j≤N , and the first sub-data line of the j-th row is coupled to the pixel P(i, j) and the pixel P(i+3, j), and the second sub-data line of the j-th row is coupled to the pixel P(i+1 , j) and pixel P(i+2, j).
本发明还提出一种显示装置,包括时序控制器、栅极驱动器、第一源极驱动器、第二源极驱动器及显示面板。栅极驱动器、第一源极驱动器及第二源极驱动器都耦接至时序控制器。显示面板耦接于源极驱动器与栅极驱动器之间,显示面板包括M列扫描线、N行数据线及M*N个像素,其中M、N为正整数。M列扫描线由栅极驱动器所驱动。N行数据线,其每一行数据线包括一第一子数据线及一第二子数据线,而每一行的第一子数据线由第一源极驱动器所驱动,每一行的第二子数据线由第二源极驱动器所驱动。M*N个像素排成一矩阵,位置为第i列及第j行的像素表示为P(i,j),其中i、j为整数,且1≤i≤M,且1≤j≤N,而第j行的第一子数据线耦接至像素P(i,j)及像素P(i+3,j),第j行的第二子数据线耦接至像素P(i+1,j)及像素P(i+2,j)。时序控制器控制栅极驱动器、第一源极驱动器及第二源极驱动器,使得当耦接至像素P(i,j)的扫描线致能时,耦接至像素P(i+1,j)的扫描线亦致能,由第一源极驱动器将像素P(i,j)的数据驱动至第j行的第一子数据线,第二源极驱动器将像素P(i+1,j)的数据驱动至第j行的第二子数据线,当耦接至像素P(i+2,j)的扫描线致能时,耦接至像素P(i+3,j)的扫描线亦致能,由第一源极驱动器将像素P(i+3,j)的数据驱动至第j行的第一子数据线,第二源极驱动器将像素P(i+2,j)的数据驱动至第j行的第二子数据线。The present invention also provides a display device, including a timing controller, a gate driver, a first source driver, a second source driver and a display panel. The gate driver, the first source driver and the second source driver are all coupled to the timing controller. The display panel is coupled between the source driver and the gate driver. The display panel includes M columns of scan lines, N rows of data lines and M*N pixels, wherein M and N are positive integers. M columns of scan lines are driven by a gate driver. N rows of data lines, each row of data lines includes a first sub-data line and a second sub-data line, and the first sub-data line of each row is driven by the first source driver, and the second sub-data line of each row line is driven by a second source driver. M*N pixels are arranged in a matrix, and the pixel at the i-th column and j-th row is expressed as P(i, j), where i, j are integers, and 1≤i≤M, and 1≤j≤N , and the first sub-data line of the j-th row is coupled to the pixel P(i, j) and the pixel P(i+3, j), and the second sub-data line of the j-th row is coupled to the pixel P(i+1 , j) and pixel P(i+2, j). The timing controller controls the gate driver, the first source driver and the second source driver so that when the scan line coupled to the pixel P(i,j) is enabled, the scan line coupled to the pixel P(i+1,j) ) is also enabled, the first source driver drives the data of the pixel P(i, j) to the first sub-data line of the j-th row, and the second source driver drives the data of the pixel P(i+1, j ) is driven to the second sub-data line of the j-th row, when the scan line coupled to the pixel P(i+2,j) is enabled, the scan line coupled to the pixel P(i+3,j) It is also enabled, the first source driver drives the data of the pixel P(i+3, j) to the first sub-data line of the j-th row, and the second source driver drives the data of the pixel P(i+2, j) Data is driven to the second sub-data line of the j-th row.
本发明的显示面板,其每一行数据线采用两条子数据线且子数据线交错耦接这行上的像素的结构,子数据线以栏反转方式驱动时却会产生点反转画质或2 line反转(2V1H)的显示效果,且有足够的水平扫描线的充电时间。又此结构传输数据时,不需用到大容量内存来预先储存半个画面数据方式,而减少成本。并且同一画面上每一条子数据线,只有一个驱动极性,不用频繁做极性双态转换,因此减少功率消耗。In the display panel of the present invention, each row of data lines adopts the structure of two sub-data lines and the sub-data lines are interleavedly coupled to the pixels on this row, but when the sub-data lines are driven in a column inversion manner, dot inversion image quality or 2 line inversion (2V1H) display effect, and there is enough charging time for horizontal scanning lines. Furthermore, when data is transmitted with this structure, there is no need to use a large-capacity memory to pre-store half of the screen data, thereby reducing costs. Moreover, each sub-data line on the same screen has only one driving polarity, so there is no need for frequent polarity switching, thus reducing power consumption.
为使本发明的上述和其它目的、特征和优点能更明显易懂,下文特举本发明的较佳实施例,并结合附图详细说明如下。In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments of the present invention are specifically cited below, and are described in detail with reference to the accompanying drawings.
附图说明 Description of drawings
图1为现有的显示装置系统结构图。FIG. 1 is a structural diagram of a conventional display device system.
图2为现有显示面板结构图。FIG. 2 is a structural diagram of a conventional display panel.
图3为现有显示面板的数据映像图。FIG. 3 is a data mapping diagram of a conventional display panel.
图4为本发明一实施例的显示装置系统结构图。FIG. 4 is a structural diagram of a display device system according to an embodiment of the present invention.
图5为图4的显示面板的数据线路径结构图。FIG. 5 is a structural diagram of data line paths of the display panel shown in FIG. 4 .
图6为图4的显示面板的设计原理图。FIG. 6 is a schematic design diagram of the display panel shown in FIG. 4 .
图7为图4的显示面板的数据映像图。FIG. 7 is a data map of the display panel of FIG. 4 .
图8为图4的栅极驱动器时序图。FIG. 8 is a timing diagram of the gate driver in FIG. 4 .
图9为另一实施例的显示面板的数据线路径结构图。FIG. 9 is a structural diagram of data line paths of a display panel according to another embodiment.
图10为图9的设计原理图。FIG. 10 is a design schematic diagram of FIG. 9 .
图11为图9的数据映像图。FIG. 11 is a data map of FIG. 9 .
附图符号说明Description of reference symbols
100、400:显示装置100, 400: display device
101、404、900:显示面板101, 404, 900: display panel
401、402:源极驱动器401, 402: source driver
403:栅极驱动器403: Gate Driver
405:时序控制器405: timing controller
A1~AM、AM/2、AM/2+1、AM-1、Ai、Ai+1、Ai+2、Ai+3:扫描线A1~AM, AM/2, AM/2+1, AM-1, Ai, Ai+1, Ai+2, Ai+3: scan line
CPV:栅极时钟信号CPV: gate clock signal
D1~DN:第二子数据线D1~DN: the second sub-data line
P(1,1)~P(M,N):像素P(1,1)~P(M,N): Pixels
S1~Sn:源极驱动器的时钟S1~Sn: Clock of source driver
STV:栅极起始脉冲信号STV: gate start pulse signal
U1~UN:第一子数据线U1~UN: the first sub-data line
具体实施方式 Detailed ways
请参照图4,图4示出了本发明一实施例的显示装置系统结构图。显示装置400包括时序控制器405、源极驱动器401、402、栅极驱动器403及显示面板404。栅极驱动器403耦接至时序控制器405。源极驱动器401、402耦接至时序控制器405。显示面板404耦接于源极驱动器401、402与栅极驱动器403之间。时序控制器405控制栅极驱动器403、源极驱动器401及402。Please refer to FIG. 4 , which shows a structural diagram of a display device system according to an embodiment of the present invention. The
为详细说明显示面板404的构造,请再参照图5,图5为显示面板404的数据线路径结构图。显示面板404包括M列的扫描线A1~AM、N行的数据线及M*N个像素,其中M、N为正整数。N行的数据线包括N行第一子数据线U1~UN及N行第二子数据线D1~DN,每一行的第一子数据线由源极驱动器401所驱动,每一行的第二子数据线由源极驱动器402所驱动。请图5与图6一起参照,图6示出了显示面板404的设计原理,因为M*N个像素排成一矩阵,假设位置为第i列及第j行的像素表示为P(i,j),其中i、j为整数,且1≤i≤M,且1≤j≤N,则第j行的第一子数据线耦接至像素P(i,j),第j行的第二子数据线耦接至像素P(i+1,j)。当耦接至像素P(i,j)的扫描线Ai致能时,耦接至像素P(i+1,j)的扫描线Ai+1亦致能,由源极驱动器401(图4)将数据驱动至第j行的第一子数据线,源极驱动器402(图4)将数据驱动至第j行的第二子数据线。也就是说扫描线Ai致能时,扫描线Ai+1亦于一栅极时钟内致能,且时序控制器405(图4)控制源极驱动器401同时将数据驱动至N行数据线的第一子数据线U1~UN,及控制源极驱动器402同时将数据驱动至N行数据线的第二子数据线D1~DN,其中第j行的第一子数据线传送数据给像素P(i,j),且第j行第二子数据线传送数据给像素P(i+1,j)。To describe the structure of the
请继续参照图5与图6的图示,进一步来说明驱动方法,假设第一、第二子数据线U1~UN及D1~DN的驱动极性,+表示正极性驱动,-表示负极性驱动。在同一画面时,第一子数据线U1、U3、U5、...、UN-3、UN-1与第二子数据线D2、D4、D6...、DN-2、DN为正极性驱动,第一子数据线U2、U4、U6、...、UN-2、UN与第二子数据线D1、D3、D5...、DN-3、DN-1为负极性驱动,并且在不同列扫描线致能时,第一、第二子数据线的电压极性不用反转。在进入下一个画面时,第一、第二子数据线的电压极性才来反转,也就是第一子数据线U1、U3、U5、...、UN-3、UN-1与第二子数据线D2、D4、D6...、DN-2、DN为负极性驱动,第一子数据线U2、U4、U6、...、UN-2、UN与第二子数据线D1、D3、D5...、DN-3、DN-1为正极性驱动。可以看出,在同一个画面中,无论水平或垂直方向,相邻的像素都有相反的驱动极性,而且同一个像素到了下一个画面,其驱动极性也会反转。显示面板404其每一行数据线具有两条子数据线且交错耦接这行上的像素的结构与驱动方式,当源极驱动器使用栏反转(column inversion)却可以使显示面板404达到点反转的最佳显示画质效果。还有因为不用在进入下一列扫描线,要做数据线电压极性反转,而减少跨压次数,所以功率消耗较小。Please continue to refer to the illustrations in Figure 5 and Figure 6 to further explain the driving method, assuming the driving polarities of the first and second sub-data lines U1~UN and D1~DN, + means positive polarity driving, - means negative polarity driving . In the same screen, the first sub-data lines U1, U3, U5, ..., UN-3, UN-1 and the second sub-data lines D2, D4, D6..., DN-2, DN are positive polarity drive, the first sub-data lines U2, U4, U6, ..., UN-2, UN and the second sub-data lines D1, D3, D5 ..., DN-3, DN-1 are driven by negative polarity, and When the scan lines of different columns are enabled, the voltage polarities of the first and second sub-data lines do not need to be reversed. When entering the next screen, the voltage polarities of the first and second sub-data lines are reversed, that is, the first sub-data lines U1, U3, U5, ..., UN-3, UN-1 and the first sub-data lines U1, U3, U5, ..., UN-3, UN-1 and the The second sub-data lines D2, D4, D6..., DN-2, DN are driven by negative polarity, the first sub-data lines U2, U4, U6, ..., UN-2, UN and the second sub-data line D1 , D3, D5..., DN-3, DN-1 are positive drive. It can be seen that in the same picture, no matter in the horizontal or vertical direction, adjacent pixels have opposite driving polarities, and the driving polarity of the same pixel will also be reversed in the next picture. Each row of data lines of the
图7示出了显示面板404的数据映像图。当扫描线A1致能时,扫描线A2亦于一栅极时钟内致能,且时序控制器405(图4)控制源极驱动器401(图4)依序读取数据U1~U3(时钟S1)、U4~U6(时钟S2)、...、UN-2~UN(时钟Sn),并同时将数据驱动至N行数据线的第一子数据线,及控制源极驱动器402(图4)依序读取数据D1~D3(时钟S1)、D4~D6(时钟S2)、...、DN-2~DN(时钟Sn),并同时将数据驱动至N行数据线的第二子数据线。同理当扫描线AM-1致能时,扫描线AM亦于一栅极时钟内致能,数据映像情形如图上所示。FIG. 7 shows a data map of the
图8示出了栅极驱动器403的时序图。当显示装置400(图4)的时序控制器405发出栅极起始脉冲信号STV来致能栅极驱动器403之后,栅极驱动器403配合其栅极时钟信号CPV发出M列扫描信号,以致能M列扫描线A1~AM,而扫描信号共被分成M/2次发出,每次发出致能相邻两列扫描线的扫描信号,如图所示扫描信号依序同时致能扫描线A1~A2、同时致能扫描线A3~A4、...、同时致能扫描线AM-1~AM。又因为每一列水平扫描线的时间=1/(画面更新率*水平扫描线次数),在高分辨率应用中画面更新率为两倍,水平扫描线次数为原来的一半,所以水平扫描线的时间可以保持原来的长度。FIG. 8 shows a timing diagram of the
从图4~图8的说明可以知道本发明实施例的显示面板403的驱动方法,包括下列步骤:步骤1,请参照图8的时序图,当栅极起始脉冲信号STV致能后,发出M列扫描信号,以致能M列扫描线A1~AM,而扫描信号共被分成M/2次发出,每次发出致能相邻两列扫描线的扫描信号;以及步骤2,请参照图7的数据映像图,当扫描线Ai、Ai+1(如图7的A1与A2或则是AM-1与AM)致能时,将数据驱动至N行数据线,第y行的第一子数据线传送数据给像素P(i,y),且第y行第二子数据线传送数据给像素P(i+1,y),而y是从1依序递增到N,y为正整数。From the descriptions in FIGS. 4 to 8, it can be known that the driving method of the
本发明另一实施例使用如图4的显示装置系统结构图,但是其中的显示面板具有不同的数据线路径结构,且源极驱动器驱动数据的顺序也略有不同。为详细说明此实施例中显示面板的构造,请再参照图9,图9为显示面板的数据线路径结构图。显示面板900包括M列的扫描线A1~AM、N行的数据线及M*N个像素,其中M、N为正整数。N行的数据线包括N行第一子数据线U1~UN及N行第二子数据线D1~DN,每一行的第一子数据线由源极驱动器401所驱动,每一行的第二子数据线由源极驱动器402所驱动。请图9与图10一起参照,图10示出了显示面板的设计原理,M*N个像素排成一矩阵,假设位置为第i列及第j行的像素表示为P(i,j),其中i、j为整数,且1≤i≤M,且1≤j≤N,则第j行的第一子数据线耦接至像素P(i,j)及像素P(i+3,j),第j行的第二子数据线耦接至像素P(i+1,j)及像素P(i+2,j)。假若当耦接至像素P(i,j)的扫描线Ai致能时,耦接至像素P(i+1,j)的扫描线Ai+1亦于一栅极时钟内致能,由源极驱动器401(图4)将像素P(i,j)的数据驱动至第j行的第一子数据线,源极驱动器402(图4)将像素P(i+1,j)的数据驱动至第j行的第二子数据线。假若当耦接至像素P(i+2,j)的扫描线Ai+2致能时,耦接至像素P(i+3,j)的扫描线Ai+3亦于一栅极时钟内致能,由源极驱动器401将像素P(i+3,j)的数据驱动至第j行的第一子数据线,源极驱动器402将像素P(i+2,j)的数据驱动至第j行的第二子数据线。也就是说,假若当扫描线Ai致能时,扫描线Ai+1亦于一栅极时钟内致能,且时序控制器405(图4)控制源极驱动器401同时将数据驱动至N行数据线的第一子数据线U1~UN,及控制源极驱动器402同时将数据驱动至N行数据线的第二子数据线D1~DN,其中第j行的第一子数据线传送数据给像素P(i,j),且第j行第二子数据线传送数据给像素P(i+1,j)。假若当扫描线Ai+2致能时,扫描线Ai+3亦于一栅极时钟内致能,且时序控制器405控制源极驱动器401同时将数据驱动至N行数据线的第一子数据线U1~UN,及控制源极驱动器402同时将数据驱动至N行数据线的第二子数据线D1~DN,其中第j行的第一子数据线传送数据给像素P(i+3,j),且第j行第二子数据线传送数据给像素P(i+2,j)。Another embodiment of the present invention uses the system structure diagram of the display device shown in FIG. 4 , but the display panel therein has a different data line path structure, and the sequence of driving data by the source driver is also slightly different. To describe the structure of the display panel in this embodiment in detail, please refer to FIG. 9 again, which is a structural diagram of the routing of the data lines of the display panel. The
请继续再参照图9与图10的图示,进一步来说明驱动方法。假设第一、第二子数据线U1~UN及D1~DN的驱动极性,+表示正极性驱动,-表示负极性驱动。在同一画面时,第一子数据线U1、U3、U5、...、UN-3、UN-1与第二子数据线D2、D4、D6...、DN-2、DN为正极性驱动,第一子数据线U2、U4、U6、...、UN-2、UN与第二子数据线D1、D3、D5...、DN-3、DN-1为负极性驱动,并且在不同列扫描线致能时,第一、第二子数据线的电压极性不用反转。在进入下一个画面时,第一、第二子数据线的电压极性才来反转,也就是第一子数据线U1、U3、U5、...、UN-3、UN-1与第二子数据线D2、D4、D6...、DN-2、DN为负极性驱动,第一子数据线U2、U4、U6、...、UN-2、UN与第二子数据线D1、D3、D5...、DN-3、DN-1为正极性驱动。可以看出,在同一个画面中,从水平方向,相邻行的像素都有相反的驱动极性,从垂直方向,相邻两列的像素都有相反的驱动极性,而且同一个像素到了下一个画面,其驱动极性也会反转。显示面板900其每一行数据线具有两条子数据线且子数据线交错耦接这行上的像素的结构与驱动方式,当源极驱动器使用栏反转(column inversion)却可以使显示面板900达到2line反转(2V1H)的显示效果,还有因为不用在进入下一列扫描线要做数据线电压极性反转而减少跨压次数,所以功率消耗较小。Please continue to refer to FIG. 9 and FIG. 10 to further describe the driving method. Assuming the driving polarities of the first and second sub-data lines U1-UN and D1-DN, + indicates positive polarity driving, and - indicates negative polarity driving. In the same screen, the first sub-data lines U1, U3, U5, ..., UN-3, UN-1 and the second sub-data lines D2, D4, D6..., DN-2, DN are positive polarity drive, the first sub-data lines U2, U4, U6, ..., UN-2, UN and the second sub-data lines D1, D3, D5 ..., DN-3, DN-1 are driven by negative polarity, and When the scan lines of different columns are enabled, the voltage polarities of the first and second sub-data lines do not need to be reversed. When entering the next screen, the voltage polarities of the first and second sub-data lines are reversed, that is, the first sub-data lines U1, U3, U5, ..., UN-3, UN-1 and the first sub-data lines U1, U3, U5, ..., UN-3, UN-1 and the The second sub-data lines D2, D4, D6..., DN-2, DN are driven by negative polarity, the first sub-data lines U2, U4, U6, ..., UN-2, UN and the second sub-data line D1 , D3, D5..., DN-3, DN-1 are positive drive. It can be seen that in the same picture, from the horizontal direction, the pixels in adjacent rows have opposite driving polarities, and from the vertical direction, the pixels in two adjacent columns have opposite driving polarities, and the same pixel arrives In the next frame, the driving polarity will also be reversed. In the
图11示出了显示面板900的数据映像图。当扫描线Ai致能时,扫描线Ai+1亦于一栅极时钟内致能,且时序控制器405(图4)控制源极驱动器401(图4)依序读取数据U1~U3(时钟S1)、U4~U6(时钟S2)、...、UN-2~UN(时钟Sn),并同时将数据驱动至N行数据线的第一子数据线,及控制源极驱动器402(图4)依序读取数据D1~D3(时钟S1)、D4~D6(时钟S2)、...、DN-2~DN(时钟Sn),并同时将数据驱动至N行数据线的第二子数据线。同理当扫描线Ai+2致能时,扫描线Ai+3亦于一栅极时钟内致能,数据映像情形如图上所示。FIG. 11 shows a data map of the
从图9~图11的说明可以知道本发明实施例的显示面板900的驱动方法,包括下列步骤:步骤1,请参照图8的时序图,假设当栅极起始脉冲信号STV致能后,发出M列扫描信号,以致能M列扫描线A1~AM,而扫描信号共被分成M/2次发出,每次发出致能相邻两列扫描线的扫描信号;以及步骤2,请参照图11的数据映像图,当扫描线Ai、Ai+1致能时,将数据驱动至N行数据线,第y行的第一子数据线传送数据给像素P(i,y),且第y行第二子数据线传送数据给像素P(i+1,y),当扫描线Ai+2、Ai+3致能时,第y行第二子数据线传送数据给像素P(i+2,y),且第y行的第一子数据线传送数据给像素P(i+3,y),而y是从1依序递增到N,y为正整数。From the descriptions of FIGS. 9 to 11 , it can be known that the driving method of the
由上述本发明实施例的说明可知,显示面板其每一行数据线具有两条子数据线,且子数据线交错耦接这行上的像素的结构,配合每次相邻两列扫描线致能与数据线以栏反转驱动方式,却会产生点反转画质或2line反转(2V1H)的显示效果,并使得每一列水平扫描线有足够的充电时间。又此结构的传输数据时,不需用到大容量的内存来储存半个画面数据,而且在同一个画面中因每一条子数据线的电压极性不用反转,每一条子数据线只有一个驱动极性不用频繁双态转换。所以本发明可以提高画面品质,且大幅减少跨压次数,减少系统功率消耗。It can be seen from the description of the above-mentioned embodiments of the present invention that each row of data lines of the display panel has two sub-data lines, and the sub-data lines are alternately coupled to the structure of pixels on this row, and each time two adjacent columns of scan lines enable and The data line is driven by column inversion, but it will produce dot inversion image quality or 2line inversion (2V1H) display effect, and make each horizontal scanning line have sufficient charging time. When transmitting data with this structure, there is no need to use a large-capacity memory to store half of the screen data, and because the voltage polarity of each sub-data line does not need to be reversed in the same screen, each sub-data line has only one The drive polarity does not need to toggle frequently. Therefore, the present invention can improve the image quality, greatly reduce the number of voltage crossings, and reduce the power consumption of the system.
虽然本发明已以较佳实施例披露如上,然其并非用以限定本发明,本领域的技术人员在不脱离本发明的精神和范围的前提下可作若干的更动与润饰,因此本发明的保护范围以本发明的权利要求为准。Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Those skilled in the art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection is based on the claims of the present invention.
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