CN101221337A - Array substrate of liquid crystal display device and driving method - Google Patents

Abstract

Translated fromChinese

本发明涉及一种液晶显示装置阵列基板，包括衬底基板、以及设置在所述衬底基板上的数个液晶像素电极、数据线和扫描线，每个所述液晶像素电极由四个子像素电极构成，同列子像素电极连接在一条数据线上，且每条数据线连接两列子像素电极；同行子像素电极两两一组交替地分别连接在两条扫描线上，且每条扫描线连接的子像素电极位于同一行；两条相邻数据线间的两个同行子像素电极，连接在同一条扫描线上，并分别连接在两条数据线上。本发明还涉及一种液晶显示装置阵列基板驱动方法。本发明采用同行子像素电极使用双扫描线驱动，两列共用一条数据线的技术手段，能够减少所需的数据线、数据驱动芯片使用量，降低液晶显示装置的整体成本。

The invention relates to an array substrate of a liquid crystal display device, comprising a base substrate, several liquid crystal pixel electrodes, data lines and scanning lines arranged on the base substrate, each of the liquid crystal pixel electrodes is composed of four sub-pixel electrodes The sub-pixel electrodes of the same row are connected to one data line, and each data line is connected to two columns of sub-pixel electrodes; the sub-pixel electrodes of the same row are connected to two scanning lines alternately in pairs, and each scanning line is connected to The sub-pixel electrodes are located in the same row; two sub-pixel electrodes in the same row between two adjacent data lines are connected to the same scanning line and respectively connected to two data lines. The invention also relates to a method for driving the array substrate of the liquid crystal display device. The present invention adopts the technical means that the sub-pixel electrodes in the same line are driven by double scanning lines, and two columns share one data line, which can reduce the required data lines and the usage of data driving chips, and reduce the overall cost of the liquid crystal display device.

Description

Translated fromChinese

液晶显示装置阵列基板及驱动方法Array substrate of liquid crystal display device and driving method

技术领域technical field

本发明涉及一种液晶显示装置阵列基板及驱动方法，尤其涉及一种包含R，G，B，W四个子像素的薄膜晶体管液晶显示装置的阵列基板及对该阵列基板上的驱动电路进行驱动的方法。The present invention relates to an array substrate of a liquid crystal display device and a driving method, in particular to an array substrate of a thin-film transistor liquid crystal display device including four sub-pixels of R, G, B and W and a driving circuit on the array substrate. method.

背景技术Background technique

薄膜晶体管液晶显示装置(Thin Film Transistor-Liquid CrystalDisplay，以下简称TFT-LCD)是目前使用最广泛的平板显示器之一。TFT-LCD一般包括液晶显示面板、扫描驱动电路和数据驱动电路。其中，液晶显示面板包括对盒设置的彩膜基板和TFT阵列基板，以及夹在两基板之间的液晶层，扫描驱动电路和数据驱动电路分别与阵列基板上的TFT开关元件相连。如图1所示为现有一种TFT-LCD上的阵列基板结构示意图，其包括衬底基板1，设置在衬底基板1上、以矩阵形式排列的液晶像素电极2、设置在液晶像素电极2行列之间的数据线3和扫描线4，数据线3与数据驱动芯片8相连，扫描线4与扫描驱动器9相连，通常一条数据线3对应连接控制一列液晶像素电极2，一条扫描线4对应连接控制一行液晶像素电极2。在每个液晶像素电极2上连接有源电极5，对应每个源电极5都设置有漏电极6，漏电极6连接在对应的数据线3上，在每对源电极5和漏电极6下设置有栅极7，栅极7连接在对应的扫描线4上。源电极5、漏电极6和栅极7即组成TFT开关元件。Thin Film Transistor-Liquid Crystal Display (Thin Film Transistor-Liquid Crystal Display, hereinafter referred to as TFT-LCD) is one of the most widely used flat panel displays at present. TFT-LCD generally includes a liquid crystal display panel, a scan driving circuit and a data driving circuit. Wherein, the liquid crystal display panel includes a color filter substrate and a TFT array substrate arranged in opposite boxes, and a liquid crystal layer sandwiched between the two substrates, and a scanning driving circuit and a data driving circuit are respectively connected to the TFT switching elements on the array substrate. As shown in Figure 1, it is a schematic structural diagram of an array substrate on an existing TFT-LCD, which includes a base substrate 1, a liquidcrystal pixel electrode 2 arranged on the base substrate 1 in a matrix form, and a liquidcrystal pixel electrode 2 arranged on the liquidcrystal pixel electrode 2. Thedata line 3 and thescanning line 4 between the rows and columns, thedata line 3 is connected to thedata driving chip 8, and thescanning line 4 is connected to thescanning driver 9. Usually, onedata line 3 is connected to control a column of liquidcrystal pixel electrodes 2, and onescanning line 4 corresponds to Connect and control a row of liquidcrystal pixel electrodes 2 . Each liquidcrystal pixel electrode 2 is connected with asource electrode 5, corresponding to eachsource electrode 5 is provided with adrain electrode 6, and thedrain electrode 6 is connected to thecorresponding data line 3, under each pair ofsource electrode 5 and drain electrode 6A gate 7 is provided, and thegate 7 is connected to thecorresponding scanning line 4 . Thesource electrode 5, thedrain electrode 6 and thegate 7 constitute a TFT switching element.

在阵列基板工作时，数据线用于将数据驱动芯片(IC)中的视频数据信号传送到TFT开关元件的漏电极，以此控制液晶像素电极的电压；扫描线用于将扫描驱动器中的扫描驱动信号传送到TFT开关元件的栅极，以此来控制TFT开关元件的关闭与开启。在液晶显示装置工作时，对于一帧画面，数据驱动芯片将视频数据信号通过数据线传输到漏电极，扫描驱动器逐行向扫描线输入扫描驱动信号。扫描驱动信号为高电平时，即可通过栅极导通源电极和漏电极，将视频数据信号传输给液晶像素电极。因为与液晶像素电极相对设置的公共电极中通有公共电压，所以在液晶像素电极和公共电极间会产生一定的电压。该电压大小的改变能够进一步改变设置在液晶像素电极和公共电极之间的液晶的透射光强大小，从而实现图像显示。在液晶显示装置中，每个液晶像素电极即一个液晶显示单元，再如图1所示，通常被分为红，绿，蓝三个子像素电极，在其上面设置对应颜色的彩膜，如红(R)、绿(G)、蓝(B)三基色，通过三条数据线分别连接控制红、绿、蓝三个子像素电极上的电压，即可以实现彩色显示。When the array substrate is working, the data line is used to transmit the video data signal in the data driver chip (IC) to the drain electrode of the TFT switch element, so as to control the voltage of the liquid crystal pixel electrode; the scan line is used to transmit the scan signal in the scan driver The driving signal is transmitted to the gate of the TFT switching element, so as to control the closing and opening of the TFT switching element. When the liquid crystal display device is working, for one frame of picture, the data driving chip transmits the video data signal to the drain electrode through the data line, and the scanning driver inputs the scanning driving signal to the scanning line row by row. When the scanning driving signal is at a high level, the source electrode and the drain electrode can be turned on through the gate to transmit the video data signal to the liquid crystal pixel electrode. Since the common electrode disposed opposite to the liquid crystal pixel electrode has a common voltage, a certain voltage is generated between the liquid crystal pixel electrode and the common electrode. The change of the voltage can further change the transmitted light intensity of the liquid crystal disposed between the liquid crystal pixel electrode and the common electrode, so as to realize image display. In a liquid crystal display device, each liquid crystal pixel electrode is a liquid crystal display unit. As shown in FIG. Three primary colors (R), green (G), and blue (B) are connected and controlled through three data lines to control the voltages on the three sub-pixel electrodes of red, green, and blue respectively, so that color display can be realized.

但是上述技术中存在的主要问题是：第一、对于TFT-LCD来说，控制驱动电路的驱动芯片包括扫描驱动芯片和数据驱动器，都是必不可少的，并且驱动芯片的成本在TFT-LCD生产成本中占据很大比例，而数据驱动芯片由于其复杂的结构比扫描驱动器更为昂贵，使得现有TFT-LCD产品的整体成本较高；第二，由于R，G，B彩膜的应用，减少了液晶显示器的光透过率，所以要达到较高的显示亮度就需要有高亮度的背光源，这将引起成本增高，功耗增大等一系列问题。But the main problem that exists in above-mentioned technology is: first, for TFT-LCD, the driving chip of control driving circuit includes scanning driving chip and data driver, all are indispensable, and the cost of driving chip is lower than TFT-LCD Production costs account for a large proportion, and the data driver chip is more expensive than the scan driver due to its complex structure, making the overall cost of existing TFT-LCD products higher; second, due to the application of R, G, B color filters , which reduces the light transmittance of the liquid crystal display, so to achieve a higher display brightness requires a high-brightness backlight source, which will cause a series of problems such as increased cost and increased power consumption.

为解决上述问题，现有技术提出的一种技术方案为：在液晶像素电极中增加一个白色(W)子像素，也就是说将一个像素电极分为红(R)，绿(G)，蓝(B)，白(W)四个子像素电极，由于白色子像素的光透过率较高，从而增加了整个像素的光透过率。但是该技术方案的缺陷是由于白色子像素的增加需要相应的增加一条数据线。这将引起总的数据线数量的增加，进一步引起数据驱动器成本的增加。In order to solve the above problems, a technical solution proposed in the prior art is: add a white (W) sub-pixel in the liquid crystal pixel electrode, that is to say, divide a pixel electrode into red (R), green (G), blue (B), white (W) four sub-pixel electrodes, because the light transmittance of the white sub-pixel is higher, thus increasing the light transmittance of the entire pixel. However, the defect of this technical solution is that a corresponding data line needs to be added due to the increase of white sub-pixels. This will cause an increase in the total number of data lines, further causing an increase in the cost of the data driver.

发明内容Contents of the invention

本发明的目的是提供一种液晶显示装置阵列基板及驱动方法，以减少阵列基板上数据线的数量，减少所需的数据驱动芯片，从而降低液晶显示装置的总成本。The object of the present invention is to provide an array substrate of a liquid crystal display device and a driving method, so as to reduce the number of data lines on the array substrate and the required data driving chips, thereby reducing the total cost of the liquid crystal display device.

为实现上述目的，本发明提供了一种液晶显示装置阵列基板，包括衬底基板，以及设置在衬底基板上的液晶像素电极、数据线和扫描线，该液晶像素电极由四个子像素电极构成，其中：In order to achieve the above object, the present invention provides an array substrate of a liquid crystal display device, including a base substrate, and a liquid crystal pixel electrode, a data line and a scanning line arranged on the base substrate, the liquid crystal pixel electrode is composed of four sub-pixel electrodes ,in:

同列的每个子像素电极连接在同一条数据线上，且每条数据线连接位于该条数据线两侧的两列子像素电极；Each sub-pixel electrode in the same column is connected to the same data line, and each data line is connected to two columns of sub-pixel electrodes located on both sides of the data line;

同行的子像素电极两两一组交替地分别连接在位于该行子像素电极两侧的两条扫描线上，且每条扫描线连接的子像素电极位于同一行；The sub-pixel electrodes in the same row are alternately connected to the two scanning lines on both sides of the sub-pixel electrodes in the row, and the sub-pixel electrodes connected to each scanning line are located in the same row;

两条相邻数据线之间的、两个同行且相邻的子像素电极连接在同一条扫描线上，并分别连接在两条数据线上。Between two adjacent data lines, two parallel and adjacent sub-pixel electrodes are connected to the same scanning line, and are respectively connected to two data lines.

为实现上述目的，本发明还提供了一种液晶显示装置阵列基板驱动方法，包括如下步骤：In order to achieve the above object, the present invention also provides a method for driving an array substrate of a liquid crystal display device, comprising the following steps:

子像素电极接收数据线输入的视频数据信号；The sub-pixel electrode receives the video data signal input by the data line;

通过扫描线输入扫描驱动信号，以行为单元驱动子像素电极，且在驱动每行子像素电极时，通过两条扫描线顺序驱动两两一组交替地连接在位于该行子像素电极两侧的两条扫描线上的子像素电极，相邻所述数据线的信号极性反转。Scanning driving signals are input through scanning lines to drive sub-pixel electrodes in row units, and when driving each row of sub-pixel electrodes, two-by-two groups alternately connected to the sub-pixel electrodes on both sides of the row are sequentially driven through two scanning lines. For the sub-pixel electrodes on the two scanning lines, the signal polarities of the adjacent data lines are reversed.

由以上技术方案可知，本发明使用R，G，B，W四个子像素的液晶显示装置阵列基板及驱动方法通过采用同行子像素电极使用双扫描线驱动，从而能够使两列子像素电极共用一条数据线的技术手段，克服了现有技术中数据线数量多，所需数据驱动芯片数量大的问题，能够减少数据线和数据驱动芯片的使用量，降低液晶显示装置的整体成本。It can be seen from the above technical solutions that the present invention uses R, G, B, W four sub-pixels of the liquid crystal display device array substrate and driving method by using the sub-pixel electrodes of the same line to drive with double scanning lines, so that two columns of sub-pixel electrodes can share one data The technical means of the line overcomes the problem of the large number of data lines and the large number of required data driving chips in the prior art, can reduce the usage of data lines and data driving chips, and reduce the overall cost of the liquid crystal display device.

下面通过附图和实施例，对本发明的技术方案做进一步的详细描述。The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

附图说明Description of drawings

图1为现有技术一种液晶显示装置阵列基板的结构示意图；1 is a schematic structural view of an array substrate of a liquid crystal display device in the prior art;

图2为本发明液晶显示装置阵列基板实施例一的结构示意图；2 is a schematic structural view of Embodiment 1 of an array substrate of a liquid crystal display device of the present invention;

图3为本发明液晶显示装置阵列基板实施例二的结构示意图；3 is a schematic structural view ofEmbodiment 2 of an array substrate of a liquid crystal display device of the present invention;

图4为本发明液晶显示装置阵列基板驱动方法实施例一的流程图；4 is a flow chart of Embodiment 1 of the method for driving an array substrate of a liquid crystal display device according to the present invention;

图5为本发明液晶显示装置阵列基板驱动方法实施例二的流程图；5 is a flow chart ofEmbodiment 2 of the method for driving an array substrate of a liquid crystal display device according to the present invention;

图6为本发明液晶显示装置阵列基板驱动方法实施例二中阵列基板上子像素电极电压正负极性状态的分布示意图。6 is a schematic diagram showing distribution of positive and negative polarity states of sub-pixel electrode voltages on the array substrate inEmbodiment 2 of the method for driving the array substrate of a liquid crystal display device according to the present invention.

具体实施方式Detailed ways

如图2所示为本发明液晶显示装置阵列基板实施例一的结构示意图，该液晶显示装置阵列基板包括：衬底基板1、液晶像素电极2、数据线3和扫描线4，每个液晶像素电极2由四个排列为两行两列的子像素电极21构成，子像素电极21的排列方式如图中虚线框所示，图2中仅示出该液晶显示装置阵列基板的局部几个子像素电极21，其中，子像素电极21以矩阵排列方式设置在衬底基板1上，数条平行的数据线3纵向、即沿图2中所示的Y方向设置在衬底基板1上，数条平行的扫描线4横向、即沿图2中所示的X方向设置在衬底基板1上。子像素电极21、数据线3和扫描线4的相对位置关系具体为：同列的每个子像素电极21都连接在与其临近的同一条数据线3上，且每条数据线3连接位于该条数据线3两侧的两列子像素电极21，即：每间隔两列子像素电极21设置一条数据线3，若子像素电极21仅有奇数列，则子像素电极21阵列的一边不设置数据线3；同行的子像素电极21两两一组交替地、分别连接在位于该行子像素电极2 1两侧的两条扫描线4上，且每条扫描线4连接的部分子像素电极21位于同一行，即每间隔一行子像素电极21设置两条扫描线4，使得一行子像素电极21的两边分别设置有一条连接控制该行子像素电极21的扫描线4，具体结构如图2所示，在本实施例中，保证任意相邻的两个子像素电极21不同时连接在同一条扫描线4和同一条数据线3上，即两条相邻数据线3之间的、两个位于同行且相邻的子像素电极21连接在同一条扫描线4上，但连接在不同的两条数据线3上，同理，一条数据线3上连接的两个相邻的子像素电极21，连接在同一条数据线3上，但连接在不同的扫描线4上。子像素电极21与TFT开关元件中的源电极5相连，数据线3与漏电极6相连，扫描线4与栅极7相连，栅极7连接源电极5和漏电极6，在栅极7通入的扫描驱动信号为高电平时将源电极5和漏电极6导通。As shown in Figure 2, it is a structural schematic diagram of Embodiment 1 of the array substrate of the liquid crystal display device of the present invention. Theelectrode 2 is composed of foursub-pixel electrodes 21 arranged in two rows and two columns. The arrangement of thesub-pixel electrodes 21 is shown in the dotted line box in the figure. Only a few sub-pixels of the array substrate of the liquid crystal display device are shown in FIG. 2Electrodes 21, wherein thesub-pixel electrodes 21 are arranged on the base substrate 1 in a matrix arrangement, and severalparallel data lines 3 are arranged on the base substrate 1 longitudinally, that is, along the Y direction shown in FIG.Parallel scan lines 4 are arranged on the base substrate 1 laterally, ie along the X direction shown in FIG. 2 . The relative positional relationship of thesub-pixel electrodes 21, thedata lines 3 and thescanning lines 4 is specifically: eachsub-pixel electrode 21 in the same column is connected to thesame data line 3 adjacent to it, and eachdata line 3 is connected to thesame data line 3. Two columns ofsub-pixel electrodes 21 on both sides of theline 3, that is, adata line 3 is set every two columns ofsub-pixel electrodes 21, if thesub-pixel electrodes 21 have only odd columns, nodata line 3 is set on one side of the array ofsub-pixel electrodes 21; Thesub-pixel electrodes 21 are alternately connected in groups of two to the twoscan lines 4 on both sides of the row ofsub-pixel electrodes 21, and part of thesub-pixel electrodes 21 connected to eachscan line 4 are located in the same row, That is, twoscanning lines 4 are arranged every other row ofsub-pixel electrodes 21, so that the two sides of a row ofsub-pixel electrodes 21 are respectively provided with ascanning line 4 connected to and controlling the row ofsub-pixel electrodes 21. The specific structure is shown in FIG. 2 . In the embodiment, it is ensured that any twoadjacent sub-pixel electrodes 21 are not connected to thesame scan line 4 and thesame data line 3 at the same time, that is, twoadjacent data lines 3 located in the same row and adjacent Thesub-pixel electrodes 21 connected to thesame scanning line 4 are connected to twodifferent data lines 3. Similarly, twoadjacent sub-pixel electrodes 21 connected to onedata line 3 are connected to thesame scanning line 4.Data line 3, but connected to adifferent scan line 4. Thesub-pixel electrode 21 is connected to thesource electrode 5 in the TFT switching element, thedata line 3 is connected to thedrain electrode 6, thescanning line 4 is connected to thegate 7, thegate 7 is connected to thesource electrode 5 and thedrain electrode 6, and thegate 7 is connected to When the input scanning driving signal is at a high level, thesource electrode 5 and thedrain electrode 6 are turned on.

在本实施例中，同行的子像素电极可以每两个一组共用一条数据线，共用数据线的两个子像素电极分别连接在上、下两条扫描线上，由上、下两条扫描线分时交替扫描控制其开关。本实施例液晶显示装置阵列基板的数据线分别与数据驱动芯片相连，扫描线分别与扫描驱动器相连，在其工作时，以一帧画面的显示为例，首先由数据线输入当前帧的视频数据信号，同时第一条扫描线输入高电平的扫描驱动信号，使连接在第一条扫描线上的、序号为“1”、“2”、“5”、“6”、“9”、“10”……的子像素电极导通，即每隔两个导通两个，下一时刻，在第一条扫描线结束高电平输入时，在第二条扫描线输入高电平的扫描驱动信号，则连接在第二条扫描线上的、序号为“3”、“4”、“7”、“8、“11”、“12”……的子像素电极导通，则第一行子像素电极被分别输入视频数据信号，且因为保持电容的存在能够保持住当前输入的电压。重复执行上述步骤，子像素电极以行为单位，被逐行顺序点亮，或者按照一定顺序被点亮。In this embodiment, the sub-pixel electrodes in the same line can share one data line every two groups, and the two sub-pixel electrodes sharing the data line are respectively connected to the upper and lower scanning lines, and the upper and lower scanning lines Time-sharing alternately scans to control its switch. In this embodiment, the data lines of the array substrate of the liquid crystal display device are respectively connected to the data driver chip, and the scanning lines are respectively connected to the scanning driver. When it is working, taking the display of a frame as an example, the video data of the current frame is first input by the data line At the same time, the first scanning line inputs a high-level scanning driving signal, so that the serial numbers connected to the first scanning line are "1", "2", "5", "6", "9", The sub-pixel electrodes of "10"... are turned on, that is, every other two are turned on. At the next moment, when the first scanning line ends the high-level input, the second scanning line inputs a high-level Scanning the driving signal, the sub-pixel electrodes connected to the second scanning line with serial numbers "3", "4", "7", "8, "11", "12"... are turned on, and the second A row of sub-pixel electrodes are respectively input with video data signals, and because of the existence of holding capacitors, the current input voltage can be maintained. Repeat the above steps, and the sub-pixel electrodes are lit up row by row in row units, or are turned on in a certain order. light up.

本实施例的技术方案，在一个时刻，一条数据线中的视频数据信号仅传输给一个开启的子像素电极，而其它与其相连的子像素电极尚未导通，视频数据信号对其并不影响。所以该实施例能够正常实现图像的显示，并且因共用了数据线，能够减少数据线的数量，从而减少所需的数据驱动芯片，In the technical solution of this embodiment, at a moment, the video data signal in one data line is only transmitted to one sub-pixel electrode that is turned on, while the other sub-pixel electrodes connected to it are not turned on, and the video data signal does not affect it. Therefore, this embodiment can normally realize the display of images, and because the data lines are shared, the number of data lines can be reduced, thereby reducing the required data driver chips,

以液晶显示装置的显示分辨率重要标准之一VGA(Video GraphicsArray)640*480分辨率为例，现有技术的R、G、B显示模式的阵列基板，需要640*3＝1920条数据线，480条扫描线，总的走线数量是1920+480＝2400。为了增加光透过率，现有技术增加了白像素，采用R、G、B、W显示模式，这种显示模式的阵列基板，在同样VGA640*480分辨率的情况下，子像素电极采用两行两列的排列方式，则需要640*2＝1280条数据线，480*2＝960条扫描线，总的走线数量为1280+960＝2240。而本发明的液晶显示装置阵列基板，子像素电极采用两行两列的排列方式时，需要640*2/2＝640条数据线，480*2*2＝1920条扫描线，总的走线数量为640+1920＝2560；本发明方案由于大大减少了数据线的数量，虽然总的走线数量有所增加，但是由于数据驱动器的成本远远高出扫描驱动器的成本，所以本发明能够降低液晶显示装置的整体成本。Taking VGA (Video Graphics Array) 640*480 resolution, one of the important display resolution standards of liquid crystal display devices, as an example, the array substrates of the prior art R, G, and B display modes require 640*3=1920 data lines, 480 scan lines, the total number of traces is 1920+480=2400. In order to increase light transmittance, white pixels are added in the prior art, and R, G, B, W display modes are adopted. The array substrate of this display mode, under the same VGA640*480 resolution, uses two sub-pixel electrodes The arrangement of rows and two columns requires 640*2=1280 data lines, 480*2=960 scan lines, and the total number of wires is 1280+960=2240. However, in the array substrate of the liquid crystal display device of the present invention, when the sub-pixel electrodes are arranged in two rows and two columns, 640*2/2=640 data lines and 480*2*2=1920 scanning lines are required. Quantity is 640+1920=2560; The scheme of the present invention has greatly reduced the quantity of data lines, although the total wiring quantity has increased, but because the cost of data driver is far higher than the cost of scan driver, so the present invention can reduce The overall cost of the liquid crystal display device.

如图3所示为本发明液晶显示装置阵列基板实施例二的结构示意图。本实施例阵列基板是在上述实施例一的基础上，进一步改进了阵列基板上扫描线与扫描驱动器的连接方式，且组成液晶像素电极2的子像素电极21采用四列一行的排列方式，如图3中虚线框所示。在本实施例中，还设有第一扫描驱动器30和第二扫描驱动器40，第一扫描驱动器30与连接在奇数行子像素电极21上的扫描线3分别相连，以图3中所示阵列基板为例，第一扫描驱动器30与连接第一行子像素电极21的第一、二条扫描线4相连，与连接第三行子像素电极21的第五、六条扫描线4相连，与连接第五行子像素电极21的第九、十条扫描线4相连，以此类推；第二扫描驱动器40与连接在偶数行子像素电极21上的扫描线4分别相连，也就是说，第二扫描驱动器40与连接第二行子像素电极21的第三、四条扫描线4相连，与连接第四行子像素电极21的第七、八条扫描线4相连，与连接第六行子像素电极21的第十一、十二条扫描线4相连，以此类推。FIG. 3 is a schematic structural diagram ofEmbodiment 2 of an array substrate of a liquid crystal display device according to the present invention. The array substrate of this embodiment is based on the first embodiment above, and further improves the connection mode between the scanning lines and the scanning driver on the array substrate, and thesub-pixel electrodes 21 constituting the liquidcrystal pixel electrodes 2 are arranged in four columns and one row, as shown in It is shown in the dotted box in Figure 3. In this embodiment, a first scan driver 30 and a second scan driver 40 are also provided, and the first scan driver 30 is connected to thescan lines 3 connected to the odd-numberedsub-pixel electrodes 21 respectively, so that the array shown in FIG. 3 Taking the substrate as an example, the first scan driver 30 is connected to the first andsecond scan lines 4 connected to thesub-pixel electrodes 21 of the first row, connected to the fifth andsixth scan lines 4 connected to thesub-pixel electrodes 21 of the third row, and connected to the first andsecond scan lines 4 connected to thesub-pixel electrodes 21 of the third row. The ninth andtenth scanning lines 4 of the five rows ofsub-pixel electrodes 21 are connected, and so on; the second scanning driver 40 is connected to thescanning lines 4 connected to the even-numberedsub-pixel electrodes 21 respectively, that is to say, the second scanning driver 40 It is connected to the third andfourth scan lines 4 connected to thesub-pixel electrodes 21 of the second row, connected to the seventh andeighth scan lines 4 connected to thesub-pixel electrodes 21 of the fourth row, and connected to thetenth scan line 4 connected to thesub-pixel electrodes 21 of the sixth row. 1. Twelve scanning lines are connected by 4, and so on.

本实施例液晶显示装置阵列基板在工作时，数据线输入的视频数据信号可以不必频繁反转。可以首先由第一扫描驱动器控制其相连的扫描线逐行驱动，第一扫描驱动器所连接的各扫描线驱动完成时，视频数据信号反转，而后第二扫描驱动器控制其相连的扫描线逐行驱动。这样在一帧画面中，连接在一条数据线上的液晶显示像素电极的电压极性不变，但是因为相邻行的子像素电极不与同一扫描驱动器相连，所以相邻行的子像素电极的电压极性相反。在整个画面中，稍亮或稍暗的液晶显示单元相间隔，使整个画面的显示效果均匀化，避免了闪烁等现象发生，同时不必频繁反转视频数据信号，也能降低显示所需的能耗。When the array substrate of the liquid crystal display device in this embodiment is working, the video data signal input by the data line does not need to be inverted frequently. First, the first scan driver controls the connected scan lines to drive progressively. When the drive of each scan line connected to the first scan driver is completed, the video data signal is reversed, and then the second scan driver controls the connected scan lines to drive progressively. drive. In this way, in one frame, the voltage polarity of the liquid crystal display pixel electrodes connected to one data line does not change, but because the sub-pixel electrodes of adjacent rows are not connected to the same scan driver, the voltage polarity of the sub-pixel electrodes of adjacent rows The voltage polarity is reversed. In the whole screen, slightly brighter or slightly darker liquid crystal display units are spaced apart, so that the display effect of the whole screen is uniform, and flickering and other phenomena are avoided. consumption.

以液晶显示装置的显示分辨率重要标准之一VGA640*480分辨率为例，现有技术的R、G、B显示模式的阵列基板，需要640*3＝1920条数据线，480条扫描线，总的走线数量是1920+480＝2400。为了增加光透过率，现有技术增加了白像素，采用R、G、B、W显示模式，这种显示模式的阵列基板，在同样VGA640*480分辨率的情况下，子像素电极采用四列一行的排列方式，则需要640*4＝2560条数据线，480条扫描线，总的走线数量为2560+480＝3040。而本发明的液晶显示装置阵列基板，子像素电极采用四列一行的排列方式时，需要640*4/2＝1280条数据线，480*2＝960条扫描线，总的走线数量为1280+960＝2240。与现有技术相比，数据线数量减少一半，总的走线数量也减少很多，降低了整体成本；同时本发明液晶显示装置的开口率增大，能够得到更高的亮度。Taking VGA640*480 resolution, one of the important display resolution standards of liquid crystal display devices, as an example, the array substrates of the R, G, and B display modes in the prior art require 640*3=1920 data lines and 480 scan lines. The total number of wires is 1920+480=2400. In order to increase the light transmittance, white pixels are added in the existing technology, and R, G, B, W display modes are adopted. The array substrate of this display mode, under the same VGA640*480 resolution, uses four sub-pixel electrodes. In the arrangement of columns and rows, 640*4=2560 data lines and 480 scanning lines are required, and the total number of routing lines is 2560+480=3040. However, in the array substrate of the liquid crystal display device of the present invention, when the sub-pixel electrodes are arranged in four columns and one row, 640*4/2=1280 data lines, 480*2=960 scanning lines are required, and the total number of wirings is 1280. +960=2240. Compared with the prior art, the number of data lines is reduced by half, and the total number of wires is also greatly reduced, which reduces the overall cost; meanwhile, the aperture ratio of the liquid crystal display device of the present invention is increased, and higher brightness can be obtained.

本发明的液晶显示装置阵列基板采用了增加扫描线的技术手段来减少数据线，从而达到了减少数据驱动芯片，降低产品成本的目的；并采用了设置两个扫描驱动器隔行驱动子像素电极的方案避免了频繁反转视频数据信号，从而降低了显示所需的能耗，同时减轻了寄生电容所带来的KickBack电压的影响，在视觉上整个画面亮度将被均匀化，避免出现闪烁等现象，改善了显示效果。The array substrate of the liquid crystal display device of the present invention adopts the technical means of increasing the scanning lines to reduce the data lines, thereby achieving the purpose of reducing the data driving chips and reducing the product cost; and adopts the scheme of setting two scanning drivers to drive the sub-pixel electrodes in an interlaced manner It avoids frequent inversion of video data signals, thereby reducing the energy consumption required for display, and at the same time reduces the influence of KickBack voltage brought by parasitic capacitance. Visually, the brightness of the entire screen will be uniformed to avoid flickering and other phenomena. Improved display.

如图4所示为本发明液晶显示装置阵列基板驱动方法实施例一的流程图，该方法包括如下步骤：FIG. 4 is a flow chart of Embodiment 1 of the method for driving an array substrate of a liquid crystal display device according to the present invention. The method includes the following steps:

步骤1、数据驱动芯片通过数据线向子像素电极输入视频数据信号；Step 1. The data driver chip inputs video data signals to the sub-pixel electrodes through the data lines;

步骤2、扫描驱动器通过扫描线输入扫描驱动信号，以行为单元驱动子像素电极，且在驱动每行子像素电极时，通过两条扫描线，顺序驱动两两一组交替地连接在位于该行子像素电极两侧的该两条扫描线上的子像素电极。Step 2: The scan driver inputs the scan drive signal through the scan line, drives the sub-pixel electrodes in row units, and when driving the sub-pixel electrodes in each row, sequentially drives two pairs of sub-pixel electrodes connected alternately in the row through two scan lines The sub-pixel electrodes on the two scanning lines on both sides of the sub-pixel electrode.

本实施例可用于驱动本发明液晶显示阵列基板任一实施例的技术方案，同行的子像素电极是两两一组间隔的连接在两侧的两条扫描线上的，所以在驱动一行子像素电极时，要首先向其中一条扫描线输入扫描驱动信号，驱动该行两两间隔的子像素电极点亮，而后向另一条扫描线输入扫描驱动信号，驱动该行剩余的子像素电极点亮。This embodiment can be used to drive the technical solution of any embodiment of the liquid crystal display array substrate of the present invention. The sub-pixel electrodes of the same row are connected to the two scanning lines on both sides in groups of two, so when driving a row of sub-pixels For electrodes, firstly input a scanning driving signal to one of the scanning lines to drive the two-by-two spaced sub-pixel electrodes in the row to light up, and then input a scanning driving signal to the other scanning line to drive the remaining sub-pixel electrodes in the row to light up.

本实施例的技术方案，可以保证液晶显示装置的正常显示，在此前提下，同行的子像素电极可以两两共用一条数据线，能够减少所需数据线的数量，从而可以减少所需的数据驱动芯片，降低产品的成本。The technical solution of this embodiment can ensure the normal display of the liquid crystal display device. On this premise, the sub-pixel electrodes of the same row can share one data line in pairs, which can reduce the number of required data lines, thereby reducing the required data. Drive chip, reduce the cost of the product.

如图5所示为本发明液晶显示装置阵列基板驱动方法实施例二的流程图，本实施例与实施例一的区别在于步骤2中扫描驱动器通过扫描线输入扫描驱动信号，以行为单元驱动子像素电极的步骤具体为：Figure 5 is a flow chart ofEmbodiment 2 of the method for driving an array substrate of a liquid crystal display device according to the present invention. The difference between this embodiment and Embodiment 1 is that instep 2, the scan driver inputs the scan drive signal through the scan lines, and drives the sub-units in row units. The specific steps of the pixel electrode are as follows:

步骤21、扫描驱动器通过扫描线输入扫描驱动信号，以行为单元，从任一行子像素电极开始，隔行驱动子像素电极；Step 21, the scan driver inputs the scan drive signal through the scan line, and drives the sub-pixel electrodes alternately starting from any row of sub-pixel electrodes in row units;

步骤22、在隔行的子像素电极驱动完成后，数据驱动芯片控制反转视频数据信号；Step 22, after the driving of the interlaced sub-pixel electrodes is completed, the data driving chip controls the inversion of the video data signal;

步骤23、扫描驱动器通过扫描线输入扫描驱动信号，以行为单元，从任一已驱动子像素电极的相邻行开始，隔行驱动子像素电极。Step 23: The scanning driver inputs the scanning driving signal through the scanning line, and drives the sub-pixel electrodes alternately starting from any adjacent row that has already driven the sub-pixel electrodes in a row unit.

其中，在驱动每行子像素电极时，通过两条扫描线，顺序驱动两两一组交替地连接在位于该行子像素电极两侧的该两条扫描线上的子像素电极。Wherein, when driving each row of sub-pixel electrodes, two-by-two groups of sub-pixel electrodes alternately connected to the two scan lines on both sides of the row of sub-pixel electrodes are sequentially driven through two scan lines.

本实施例可用于驱动本发明液晶显示阵列基板实施例二的技术方案，例如，首先由第一扫描驱动器驱动第一、三、五等奇数行的子像素电极点亮，在此过程中不反转视频数据信号，当第一扫描驱动器驱动完成所有与其相连的子像素电极行后，反转视频数据信号，由第二扫描驱动器驱动第二、四、六等偶数行的子像素电极点亮。该技术方案可以实现相邻行的子像素电极与公共电极之间的电压极性相反，从而使寄生电容所导致的稍明和稍暗的子像素电极能够间隔设置，使显示效果均匀化，改善显示质量。同时，能够减少视频数据信号的反转次数，节约产品的能耗。This embodiment can be used to drive the technical solution ofEmbodiment 2 of the liquid crystal display array substrate of the present invention. For example, first, the first scan driver drives the sub-pixel electrodes of the first, third, fifth and other odd-numbered rows to light up. Convert the video data signal, after the first scanning driver drives all the sub-pixel electrode rows connected to it, invert the video data signal, and drive the second, fourth, sixth and other even-numbered sub-pixel electrodes to light up by the second scanning driver. This technical solution can realize the opposite voltage polarity between the sub-pixel electrodes and the common electrode in adjacent rows, so that the slightly brighter and slightly darker sub-pixel electrodes caused by parasitic capacitance can be arranged at intervals, so that the display effect is uniform and the display is improved. quality. At the same time, the number of inversions of the video data signal can be reduced, and the energy consumption of the product can be saved.

在本实施例的基础上，可以进一步设置相邻数据线输入的视频数据信号反转，则相邻列的、且连接在不同数据线上的子像素电极的电压极性也是相反的，进一步使显示效果均匀化，改善了显示质量，采用本实施例的技术方案，阵列基板上的各子像素电极的正、负电压极性分布状态如图6所示。On the basis of this embodiment, the video data signals input by adjacent data lines can be further set to be reversed, so that the voltage polarities of sub-pixel electrodes in adjacent columns and connected to different data lines are also reversed, further making The display effect is uniform and the display quality is improved. With the technical solution of this embodiment, the polarity distribution state of positive and negative voltages of each sub-pixel electrode on the array substrate is shown in FIG. 6 .

最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (7)

1. a LCD device array substrates comprises underlay substrate, and is arranged on several liquid crystal pixel electrodes, data line and sweep trace on the described underlay substrate, and each described liquid crystal pixel electrodes is made of four pixel electrodes, it is characterized in that:

The described pixel electrode of each of same column is connected on same the described data line, and every described data line connects the described pixel electrode of two row that is positioned at these data line both sides;

Colleague's described pixel electrode in twos one group alternately be connected on two sweep traces that are positioned at these row pixel electrode both sides, and the pixel electrode that every described sweep trace connects is positioned at same delegation;

Article two, between the adjacent data line, two colleagues and adjacent pixel electrode be connected on same the sweep trace, and be connected on described two data lines.

2. LCD device array substrates according to claim 1 is characterized in that: also be provided with first scanner driver, link to each other respectively with the sweep trace that is connected the odd-numbered line pixel electrode; Second scanner driver links to each other respectively with the sweep trace that is connected the even number line pixel electrode.

3. LCD device array substrates according to claim 1 is characterized in that: described four pixel electrodes are arranged as delegation.

4. LCD device array substrates according to claim 1 is characterized in that: described four pixel electrodes are arranged as two row, two row.

5. LCD device array substrates driving method is characterized in that comprising:

Pixel electrode receives the video data signal of data line input;

By sweep trace input scan drive signal, with behavior unit driven element pixel electrode, and when driving every capable pixel electrode, drive one group of pixel electrode that alternately is connected on described two sweep traces that are positioned at these row pixel electrode both sides in twos in proper order by two sweep traces, the signal polarity counter-rotating of adjacent described data line.

6. LCD device array substrates driving method according to claim 5 is characterized in that: described by sweep trace input scan drive signal, be specially with behavior unit driven element pixel electrode:

By sweep trace input scan drive signal, with behavior unit, from arbitrary capable pixel electrode, interlacing driven element pixel electrode;

After the pixel electrode driving of interlacing is finished, the counter-rotating video data signal;

By sweep trace input scan drive signal, with behavior unit, from the adjacent lines of arbitrary pixel electrode of driven element, interlacing driven element pixel electrode.

7. according to claim 5 or 6 described LCD device array substrates driving methods, it is characterized in that: be specially to pixel electrode inputting video data signal: import the video data signal that reverses every row to pixel electrode by data line by data line.

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