技术领域technical field
本发明涉及显示技术领域，尤其涉及一种显示面板、其驱动方法及显示装置。The present invention relates to the field of display technology, and in particular, to a display panel, a driving method thereof and a display device.
背景技术Background technique
目前，显示器中数据驱动芯片通过数据线向像素单元输出像素电压。由于显示器中数据线数量较多，相应地，数据驱动芯片需要较多的引脚，这样向每一数据线传输数据信号的数据传输线也相应较多，不利于实现显示器的窄边框。为了实现全面屏，通过减少数据传输线的数量，相关技术中在数据驱动芯片和数据线之间设置MUX信号输入电路，目前常用的方案是数据驱动芯片可以通过MUX连接三个子像素单元RGB(可称为1:3MUX方案)，以及数据驱动芯片可以通过MUX连接六个子像素单元RGB(可称为1:6MUX方案)等，这样可以大大减少数据传输线的数量，降低数据驱动芯片的尺寸，减少显示器边框的尺寸。Currently, a data driving chip in a display outputs pixel voltages to pixel units through data lines. Due to the large number of data lines in the display, correspondingly, the data driving chip requires more pins, so that there are correspondingly more data transmission lines for transmitting data signals to each data line, which is not conducive to realizing a narrow frame of the display. In order to achieve a full screen, by reducing the number of data transmission lines, a MUX signal input circuit is set between the data driving chip and the data lines in the related art. The commonly used solution is that the data driving chip can connect three sub-pixel units RGB (which can be called as MUX) through the MUX. 1:3MUX scheme), and the data driver chip can connect six sub-pixel units RGB through MUX (can be called 1:6MUX scheme), etc., which can greatly reduce the number of data transmission lines, reduce the size of the data driver chip, and reduce the display frame. size of.
但是在上述1:3MUX和1:6MUX方案中，由于屏幕尺寸以及分辨率的增加，使得显示面板本身的RC Loading增加，另外MUX的增多，MUX的开启时间缩短，极大减少了液晶电容充电时间，导致液晶电容充电不足，因此单一MUX开启时间小于液晶电容所需要的充电时间，导致像素充电不足。而且n-MUX中n越大，充电不足问题越严重，比如3-MUX设计下像素充电时间减少为Gate开启时间的1/3，而6-MUX设计下像素充电时间减少为Gate开启时间的1/6，通常会存在严重的充电不足问题，影响显示面板的显示品质。However, in the above 1:3MUX and 1:6MUX solutions, due to the increase in screen size and resolution, the RC Loading of the display panel itself increases. In addition, the increase in MUX shortens the MUX turn-on time, which greatly reduces the charging time of the liquid crystal capacitor. , resulting in insufficient charging of the liquid crystal capacitor, so the ON time of a single MUX is less than the charging time required by the liquid crystal capacitor, resulting in insufficient charging of the pixel. Moreover, the larger the n in n-MUX, the more serious the problem of insufficient charging. For example, under the 3-MUX design, the pixel charging time is reduced to 1/3 of the Gate open time, while under the 6-MUX design, the pixel charging time is reduced to 1 of the Gate open time. /6, there is usually a serious problem of insufficient charging, which affects the display quality of the display panel.
发明内容SUMMARY OF THE INVENTION
有鉴于此，本发明实施例提供一种显示面板、其驱动方法及显示装置，用以解决现有显示产品像素充电不足的问题。In view of this, embodiments of the present invention provide a display panel, a method for driving the same, and a display device to solve the problem of insufficient charging of pixels in existing display products.
因此，本发明实施例提供了一种显示面板，包括：多条数据线，多个MUX信号输入电路，多个预充电控制电路和数据驱动IC；所述MUX信号输入电路与所述预充电控制电路一一对应，每一所述MUX信号输入电路分别与预设数量的数据线和所述数据驱动IC的同一信号输出端电连接，与所述MUX信号输入电路相对应的所述预充电控制电路与相同所述预设数量的数据线电连接；其中，Therefore, an embodiment of the present invention provides a display panel, including: a plurality of data lines, a plurality of MUX signal input circuits, a plurality of precharge control circuits and a data driving IC; the MUX signal input circuit and the precharge control circuit One-to-one correspondence of circuits, each MUX signal input circuit is respectively electrically connected with a preset number of data lines and the same signal output end of the data driver IC, and the precharge control corresponding to the MUX signal input circuit The circuit is electrically connected with the same preset number of data lines; wherein,
所述MUX信号输入电路用于在各行栅线扫描时间段，通过所述数据驱动IC的同一信号输出端依次对电连接的各条数据线加载数据电压；在所述栅线扫描时间段首次加载数据电压的数据线为第一数据线，其他数据线为第二数据线；The MUX signal input circuit is used to sequentially load data voltages on each data line electrically connected through the same signal output end of the data driver IC in the gate line scanning period of each row; for the first time during the gate line scanning period The data line of the data voltage is the first data line, and the other data lines are the second data lines;
所述预充电控制电路用于在所述MUX信号输入电路对所述第一数据线加载数据电压的同时，向至少一条所述第二数据线加载预充电电压。The precharge control circuit is configured to apply a precharge voltage to at least one of the second data lines while the MUX signal input circuit applies a data voltage to the first data line.
可选地，在具体实施时，在本发明实施例提供的上述显示面板中，所述预充电控制电路用于在所述MUX信号输入电路对所述第一数据线加载数据电压的同时，向其他所有述第二数据线均加载预充电电压。Optionally, during specific implementation, in the above-mentioned display panel provided by the embodiment of the present invention, the precharge control circuit is configured to load a data voltage to the first data line while the MUX signal input circuit loads the data voltage to the first data line. All other second data lines are loaded with precharge voltage.
可选地，在具体实施时，在本发明实施例提供的上述显示面板中，还包括：多条第一控制信号线、多条第二控制信号线和预充电信号线；每一所述MUX信号输入电路包括：与电连接的各所述数据线一一对应的第一开关晶体管，各所述第一开关晶体管的栅极与不同的所述第一控制信号线电连接，第一极与对应的所述数据线电连接，第二极与所述数据驱动IC的同一信号输出端电连接；Optionally, during specific implementation, the above-mentioned display panel provided in the embodiment of the present invention further includes: a plurality of first control signal lines, a plurality of second control signal lines, and a precharge signal line; each of the MUX The signal input circuit includes: first switch transistors corresponding to each of the data lines that are electrically connected, the gates of each of the first switch transistors are electrically connected to the different first control signal lines, and the first electrodes are connected to the first control signal line. The corresponding data lines are electrically connected, and the second pole is electrically connected to the same signal output end of the data driving IC;
所述预充电控制电路包括：与电连接的各所述数据线一一对应的第二开关晶体管，所述第二开关晶体管的栅极与不同的所述第二控制信号线电连接，第一极与对应的所述数据线电连接，第二极与所述预充电线电连接。The precharge control circuit includes: a second switch transistor corresponding to each of the data lines electrically connected, the gate of the second switch transistor is electrically connected to the different second control signal lines, the first The poles are electrically connected to the corresponding data lines, and the second poles are electrically connected to the precharge lines.
可选地，在具体实施时，在本发明实施例提供的上述显示面板中，所述第一控制信号线的数量与所述第二控制信号线的数量相同。Optionally, during specific implementation, in the above-mentioned display panel provided in the embodiment of the present invention, the number of the first control signal lines is the same as the number of the second control signal lines.
可选地，在具体实施时，在本发明实施例提供的上述显示面板中，所述预充电线包括两条子预充电线，相邻两条所述数据线通过对应的所述第二开关晶体管与不同的所述子预充电线电连接。Optionally, during specific implementation, in the above-mentioned display panel provided by the embodiment of the present invention, the precharge line includes two sub-precharge lines, and the two adjacent data lines pass through the corresponding second switch transistors be electrically connected to different sub-precharge lines.
可选地，在具体实施时，在本发明实施例提供的上述显示面板中，还包括呈阵列排布的多个颜色不同的亚像素，每一列所述亚像素的颜色相同，每一条所述数据线与对应的一列所述亚像素电连接；Optionally, during specific implementation, the above-mentioned display panel provided by the embodiment of the present invention further includes a plurality of sub-pixels with different colors arranged in an array, the sub-pixels in each column have the same color, and the sub-pixels in each row are of the same color. a data line is electrically connected to a corresponding column of the sub-pixels;
每一所述MUX信号输入电路与三条数据线电连接，与所述MUX信号输入电路对应的所述预充电控制电路与相同的所述三条数据线电连接，且所述三条数据线电连接的亚像素列的颜色均不相同。Each of the MUX signal input circuits is electrically connected to three data lines, the precharge control circuit corresponding to the MUX signal input circuit is electrically connected to the same three data lines, and the three data lines are electrically connected. The sub-pixel columns are all different colors.
基于同一发明构思，本发明实施例还提供了一种显示装置，包括本发明实施例提供的上述显示面板。Based on the same inventive concept, an embodiment of the present invention further provides a display device, including the above-mentioned display panel provided by an embodiment of the present invention.
基于同一发明构思，本发明实施例还提供了一种本发明实施例提供的显示面板的驱动方法，包括：Based on the same inventive concept, an embodiment of the present invention also provides a method for driving a display panel provided by an embodiment of the present invention, including:
MUX信号输入电路在各行栅线扫描时间段，通过所述数据驱动IC的同一信号输出端依次对电连接的各条数据线加载数据电压；在所述栅线扫描时间段首次加载数据电压的数据线为第一数据线，其他数据线为第二数据线；The MUX signal input circuit sequentially loads data voltages on each data line that is electrically connected through the same signal output end of the data driver IC during the gate line scanning period of each row; the data of the data voltage is loaded for the first time during the gate line scanning period. The line is the first data line, and the other data lines are the second data lines;
在所述MUX信号输入电路对所述第一数据线加载数据电压的同时，所述预充电控制电路向至少一条所述第二数据线加载预充电电压；When the MUX signal input circuit loads a data voltage on the first data line, the precharge control circuit loads a precharge voltage on at least one of the second data lines;
在所述MUX信号输入电路对所述第二数据线加载数据电压时，断开所述预充电控制电路与所述数据线之间的电连接。When the MUX signal input circuit applies a data voltage to the second data line, the electrical connection between the precharge control circuit and the data line is disconnected.
可选地，在具体实施时，在本发明实施例提供的上述显示面板的驱动方法中，所述数据驱动IC向所述第一数据线加载数据电压的时长大于向所述第二数据线加载数据电压的时长。Optionally, in a specific implementation, in the above-mentioned driving method for a display panel provided by the embodiment of the present invention, the data driving IC loads the data voltage on the first data line for a longer time period than when the data voltage is loaded on the second data line. The duration of the data voltage.
可选地，在具体实施时，在本发明实施例提供的上述显示面板的驱动方法中，向所述第二数据线加载数据电压的时长相同。Optionally, in the specific implementation, in the above-mentioned driving method of the display panel provided by the embodiment of the present invention, the duration of loading the data voltage to the second data line is the same.
可选地，在具体实施时，在本发明实施例提供的上述显示面板的驱动方法中，向所述第二数据线加载预充电电压的时长与向所述第一数据线加载数据电压的时长相同。Optionally, during specific implementation, in the above-mentioned driving method of the display panel provided by the embodiment of the present invention, the duration of loading the precharge voltage to the second data line is the same as the duration of loading the data voltage to the first data line. same.
本发明有益效果如下：The beneficial effects of the present invention are as follows:
本发明实施例提供的一种显示面板、其驱动方法及显示装置，该显示面板通过设置与MUX信号输入电路一一对应的预充电控制电路，且每一对对应的MUX信号输入电路和预充电控制电路与相同预设数量的数据线电连接，当MUX信号输入电路在栅线扫描时间段对第一数据线加载数据电压的同时，预充电控制电路向至少一条第二数据线加载预充电电压，当MUX信号输入电路在栅线扫描时间段依次对第二数据线加载数据电压时，第二数据线由于已经预先加载了预充电电压，因此可以在现有技术提供的像素充电时间基础上，额外增加像素充电时间。因此，本发明实施例提供的上述显示面板不仅可以解决现有显示产品像素充电不足的问题，而且还可以为超高分辨率、超高频、大尺寸、无边框等对像素充电时间要求极为严苛的技术方向提供解决方案。Embodiments of the present invention provide a display panel, a method for driving the same, and a display device. The display panel is provided with precharge control circuits corresponding to MUX signal input circuits one-to-one, and each pair of corresponding MUX signal input circuits and precharge The control circuit is electrically connected with the same preset number of data lines. When the MUX signal input circuit loads the first data line with the data voltage during the gate line scanning period, the precharge control circuit loads the precharge voltage on the at least one second data line. , when the MUX signal input circuit sequentially loads the second data line with the data voltage during the gate line scanning period, the second data line has been pre-loaded with the pre-charge voltage, so on the basis of the pixel charging time provided by the prior art, Additional pixel charging time. Therefore, the above-mentioned display panel provided by the embodiment of the present invention can not only solve the problem of insufficient charging of pixels in existing display products, but also can meet extremely strict requirements on pixel charging time for ultra-high resolution, ultra-high frequency, large size, and no border. Demanding technical direction to provide solutions.
附图说明Description of drawings
图1为相关技术中显示面板的结构示意图；1 is a schematic structural diagram of a display panel in the related art;
图2为图1对应的时序图；Fig. 2 is a timing chart corresponding to Fig. 1;
图3A-图3C为相关技术中显示面板的像素充电效果示意图；3A-3C are schematic diagrams of pixel charging effects of a display panel in the related art;
图4为本发明实施例提供的显示面板的结构示意图；FIG. 4 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
图5为图4对应的显示面板的时序结构示意图；FIG. 5 is a schematic diagram of the timing structure of the display panel corresponding to FIG. 4;
图6A-图6C为本发明实施例提供的显示面板的像素充电效果示意图。6A-6C are schematic diagrams of pixel charging effects of a display panel according to an embodiment of the present invention.
具体实施方式Detailed ways
为了使本发明的目的，技术方案和优点更加清楚，下面结合附图，对本发明实施例提供的显示面板、其驱动方法及显示装置的具体实施方式进行详细地说明。应当理解，下面所描述的优选实施例仅用于说明和解释本发明，并不用于限定本发明。并且在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。In order to make the purpose, technical solutions and advantages of the present invention clearer, the specific implementations of the display panel, its driving method and the display device provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the preferred embodiments described below are only used to illustrate and explain the present invention, but not to limit the present invention. And the embodiments in this application and the features in the embodiments may be combined with each other without conflict.
如图1所示，图1为现有技术中采用3-MUX对像素充电的电路示意图，图1中采用标号MUXR、MUXG和MUXB表示不同颜色亚像素列对应的3条MUX控制信号线，以及与数据线(D1、D2、D3……)一一对应的第一开关晶体管T1，数据驱动IC通过数据传输线S(图1中采用标号S1、S2……表示不同的S)与对应的第一开关晶体管T1的第一极电连接，第一开关晶体管T1的栅极与对应的MUX控制信号线电连接，第一开关晶体管T1的第二极通过数据线(D1、D2、D3……)的第一端与多列亚像素单元电连接；数据传输线(S1、S2……)的数量与数据线(D1、D2、D3……)的数量之比为1:3，且相邻两条数据线接收不同数据传输线传输的数据电压。这样，在显示待显示帧画面时，数据驱动IC控制MUX控制信号线进行切换控制第一开关晶体管T1导通，即数据驱动IC、数据传输线S、第一开关晶体管T1、数据线(D1、D2、D3……)与亚像素单元之间形成数据电压输出通道，然后数据驱动IC通过数据传输线向对应列的数据线输出数据电压，从而使数据电压输出到对应的亚像素单元中。As shown in FIG. 1, FIG. 1 is a schematic diagram of a circuit using 3-MUX to charge pixels in the prior art. In FIG. 1, the symbols MUXR, MUXG and MUXB are used to indicate three MUX control signal lines corresponding to different color sub-pixel columns, and The first switch transistors T1 corresponding to the data lines (D1, D2, D3...) one-to-one, and the data drive IC communicates with the corresponding first switch transistors T1 through the data transmission line S (in Fig. 1, the symbols S1, S2... represent different S) The first pole of the switch transistor T1 is electrically connected, the gate of the first switch transistor T1 is electrically connected to the corresponding MUX control signal line, and the second pole of the first switch transistor T1 is electrically connected through the data lines (D1, D2, D3...) The first end is electrically connected to multiple columns of sub-pixel units; the ratio of the number of data transmission lines (S1, S2...) to the number of data lines (D1, D2, D3...) is 1:3, and two adjacent data The lines receive data voltages transmitted by different data transmission lines. In this way, when displaying the frame picture to be displayed, the data driving IC controls the MUX control signal line to switch and control the first switching transistor T1 to be turned on, that is, the data driving IC, the data transmission line S, the first switching transistor T1, the data line (D1, D2 , D3 .
现有技术中图1的设计将数据传输线(S1、S2……)的数量缩减为数据线(D1、D2、D3……)数量的1/3，即一个数据传输线分时给分别由MUXR、MUXG、MUXB控制的3条数据线对应R、G、B像素充电，其充电控制时序如图2所示。MUXR、MUXG、MUXB按顺序依次循环开启，三者开启时间相等，且三者开启时间之和为一个Gate开启时间，即Gate1至Gate1920每一个Gate被MUXR、MUXG、MUXB均分。当Gate与MUX同时打开时数据传输线S才会对Gate与MUX连接的像素充电。比如Gate1与MUXR同时打开时，数据传输线S1仅对显示面板左侧第1条数据线D1和像素R充电，Gate1与MUXG同时打开时S1仅对显示面板左侧第5条数据线D5和像素G充电，Gate1与MUXB同时打开时S1仅对显示面板左侧第3条数据线D3和像素B充电。这种3-MUX设计可以很好的将数据传输线(S1、S2……)的数量缩减为数据线(D1、D2、D3……)数量的1/3，极大的减小数据驱动IC的尺寸与Panel fanout连接布线尺寸，但是3-MUX设计不可避免的将像素的充电时间降低为Gate开启时间的1/3，以液晶显示面板为例，极大减少了液晶电容的充电时间，导致液晶电容充电不足，如图3A至图3C所示，图3A至图3C分别为像素R、G和B对应的从0灰阶电压充电至255灰阶电压的像素充电效果示意图，黑色线表示MUX开启时间，灰色线表示像素充电时间，可以看出在MUX开启时间内，像素出现严重的充电不足。而且n-MUX中n越大，充电不足问题越严重，比如6-MUX设计下像素充电时间减少为Gate开启时间的1/6，通常会存在严重的充电不足问题。The design of FIG. 1 in the prior art reduces the number of data transmission lines (S1, S2...) to 1/3 of the number of data lines (D1, D2, D3...), that is, one data transmission line is time-shared by MUXR, The three data lines controlled by MUXG and MUXB correspond to R, G, and B pixel charging, and the charging control sequence is shown in Figure 2. MUXR, MUXG, and MUXB are turned on in sequence, and the three turn-on times are equal, and the sum of the three turn-on times is a Gate turn-on time, that is, each Gate from Gate1 to Gate1920 is equally divided by MUXR, MUXG, and MUXB. When the Gate and the MUX are turned on at the same time, the data transmission line S will charge the pixels connected to the Gate and the MUX. For example, when Gate1 and MUXR are turned on at the same time, the data transmission line S1 only charges the first data line D1 and pixel R on the left side of the display panel. When Gate1 and MUXG are turned on at the same time, S1 only charges the fifth data line D5 and pixel G on the left side of the display panel. When charging, when Gate1 and MUXB are turned on at the same time, S1 only charges the third data line D3 and pixel B on the left side of the display panel. This 3-MUX design can well reduce the number of data transmission lines (S1, S2...) to 1/3 of the number of data lines (D1, D2, D3...), greatly reducing the data drive IC The size is related to the wiring size of the Panel fanout connection, but the 3-MUX design inevitably reduces the charging time of the pixel to 1/3 of the gate opening time. Taking the liquid crystal display panel as an example, the charging time of the liquid crystal capacitor is greatly reduced, causing the liquid crystal The capacitor is not charged enough, as shown in Figure 3A to Figure 3C, Figure 3A to Figure 3C are schematic diagrams of the pixel charging effect corresponding to pixels R, G and B charged from 0 grayscale voltage to 255 grayscale voltage, the black line indicates that the MUX is turned on time, the gray line represents the pixel charging time, and it can be seen that the pixel is severely undercharged during the MUX on time. Moreover, the larger the n in n-MUX, the more serious the problem of insufficient charging. For example, under the 6-MUX design, the pixel charging time is reduced to 1/6 of the gate opening time, and there is usually a serious insufficient charging problem.
有鉴于此，本发明实施例提供了一种显示面板，如图4所示，包括：多条数据线(D1、D2、D3……)，多个MUX信号输入电路100，多个预充电控制电路200和数据驱动IC；MUX信号输入电路100与预充电控制电路200一一对应，每一MUX信号输入电路100分别与预设数量的数据线和数据驱动IC的同一信号输出端电连接，与MUX信号输入电路100相对应的预充电控制电路200与相同预设数量的数据线电连接，例如每一MUX信号输入电路100与三条数据线(D1、D3和D5)和数据驱动IC的同一个信号输出端S1电连接，与MUX信号输入电路100对应的预充电控制电路200与相同的三条数据线(D1、D3和D5)电连接；其中，In view of this, an embodiment of the present invention provides a display panel, as shown in FIG. 4, comprising: a plurality of data lines (D1, D2, D3...), a plurality of MUX signal input circuits 100, a plurality of precharge control The circuit 200 and the data drive IC; the MUX signal input circuit 100 corresponds to the precharge control circuit 200 one-to-one, and each MUX signal input circuit 100 is electrically connected to a preset number of data lines and the same signal output end of the data drive IC, and is electrically connected to the same signal output end of the data drive IC. The precharge control circuit 200 corresponding to the MUX signal input circuit 100 is electrically connected to the same preset number of data lines, for example, each MUX signal input circuit 100 is connected to three data lines ( D1 , D3 and D5 ) and the same one of the data driving IC The signal output terminal S1 is electrically connected, and the precharge control circuit 200 corresponding to the MUX signal input circuit 100 is electrically connected to the same three data lines (D1, D3 and D5); wherein,
MUX信号输入电路100用于在各行栅线扫描时间段，通过数据驱动IC的同一信号输出端(如S1)依次对电连接的各条数据线(D1、D3和D5)加载数据电压，通过数据驱动IC的同一信号输出端(如S2)依次对电连接的各条数据线(D2、D4和D6)加载数据电压；在栅线扫描时间段首次加载数据电压的数据线为第一数据线，如D1和D4为第一数据线，其他数据线为第二数据线，如D2、D3、D5和D6为第二数据线；The MUX signal input circuit 100 is used for sequentially loading data voltages on each of the electrically connected data lines (D1, D3 and D5) through the same signal output terminal (eg S1) of the data driving IC during the scanning period of each row of gate lines. The same signal output terminal (such as S2) of the driver IC sequentially loads data voltages to each of the electrically connected data lines (D2, D4 and D6); the data line that loads the data voltage for the first time in the gate line scanning period is the first data line, For example, D1 and D4 are the first data lines, other data lines are the second data lines, such as D2, D3, D5 and D6 are the second data lines;
预充电控制电路200用于在MUX信号输入电路100对第一数据线如D1加载数据电压的同时，向至少一条第二数据线加载预充电电压，如向D3加载预充电电压，或向D5加载预充电电压，或同时向D3和D5加载预充电电压。The precharge control circuit 200 is configured to load a precharge voltage to at least one second data line, such as a precharge voltage to D3, or a precharge voltage to D5, while the MUX signal input circuit 100 loads a data voltage to the first data line such as D1 Precharge voltage, or load precharge voltage to D3 and D5 at the same time.
本发明实施例提供的显示面板，通过设置与MUX信号输入电路一一对应的预充电控制电路，且每一对对应的MUX信号输入电路和预充电控制电路与相同预设数量的数据线电连接，当MUX信号输入电路在栅线扫描时间段对第一数据线加载数据电压的同时，预充电控制电路向至少一条第二数据线加载预充电电压，当MUX信号输入电路在栅线扫描时间段依次对第二数据线加载数据电压时，第二数据线由于已经预先加载了预充电电压，因此可以在现有技术提供的像素充电时间基础上，额外增加像素充电时间。因此，本发明实施例提供的上述显示面板不仅可以解决现有显示产品像素充电不足的问题，而且还可以为超高分辨率、超高频、大尺寸、无边框等对像素充电时间要求极为严苛的技术方向提供解决方案。In the display panel provided by the embodiment of the present invention, precharge control circuits corresponding to the MUX signal input circuits are provided, and each pair of corresponding MUX signal input circuits and precharge control circuits are electrically connected to the same preset number of data lines , when the MUX signal input circuit loads the first data line with the data voltage during the gate line scanning period, the precharge control circuit loads the precharge voltage on at least one second data line, when the MUX signal input circuit is in the gate line scanning period. When the data voltages are sequentially loaded on the second data lines, since the second data lines are preloaded with the precharge voltages, the pixel charging time can be additionally increased on the basis of the pixel charging time provided by the prior art. Therefore, the above-mentioned display panel provided by the embodiment of the present invention can not only solve the problem of insufficient charging of pixels in existing display products, but also can meet extremely strict requirements on pixel charging time for ultra-high resolution, ultra-high frequency, large size, and no border. Demanding technical direction to provide solutions.
进一步地，在具体实施时，为了能够使显示面板中所有第二数据线均在现有技术提供的像素充电时间基础上，额外增加像素充电时间，本发明实施例提供的上述显示面板中，如图4所示，预充电控制电路200用于在MUX信号输入电路100对第一数据线如D1和D4加载数据电压的同时，向其他所有述第二数据线如D2、D3、D5和D6均加载预充电电压。Further, during specific implementation, in order to enable all the second data lines in the display panel to additionally increase the pixel charging time on the basis of the pixel charging time provided by the prior art, in the above-mentioned display panel provided by the embodiment of the present invention, such as As shown in FIG. 4 , the precharge control circuit 200 is configured to apply data voltages to all the other second data lines such as D2, D3, D5 and D6 while the MUX signal input circuit 100 applies data voltages to the first data lines such as D1 and D4. Load the precharge voltage.
进一步地，在具体实施时，本发明实施例提供的上述显示面板中，如图4所示，还包括：多条第一控制信号线(MUXR、MUXG、MUXB)、多条第二控制信号线(Pre_R、Pre_G、Pre_B)和预充电信号线S_；每一MUX信号输入电路100包括：与电连接的各数据线(D1、D3和D5)一一对应的第一开关晶体管T1，各第一开关晶体管T1的栅极与不同的第一控制信号线电连接，如与D1电连接的第一开关晶体管T1的栅极与第一控制信号线MUXR电连接，如与D3电连接的第一开关晶体管T1的栅极与第一控制信号线MUXB电连接，如与D5电连接的第一开关晶体管T1的栅极与第一控制信号线MUXG电连接，各第一开关晶体管T1的第一极与对应的数据线(D1、D3、D5)电连接，各第一开关晶体管T1的第二极与数据驱动IC的同一信号输出端S1(+)电连接；Further, during specific implementation, the above-mentioned display panel provided by the embodiment of the present invention, as shown in FIG. 4 , further includes: a plurality of first control signal lines (MUXR, MUXG, MUXB), a plurality of second control signal lines (Pre_R, Pre_G, Pre_B) and pre-charge signal line S_; each MUX signal input circuit 100 includes: first switching transistors T1 corresponding to the electrically connected data lines (D1, D3 and D5) one-to-one, each first switching transistor T1 The gate of the switch transistor T1 is electrically connected to different first control signal lines, such as the gate of the first switch transistor T1 electrically connected to D1 is electrically connected to the first control signal line MUXR, such as the first switch electrically connected to D3 The gate of the transistor T1 is electrically connected to the first control signal line MUXB. For example, the gate of the first switch transistor T1 electrically connected to D5 is electrically connected to the first control signal line MUXG. The first pole of each first switch transistor T1 is electrically connected to the first control signal line MUXG. The corresponding data lines (D1, D3, D5) are electrically connected, and the second pole of each first switching transistor T1 is electrically connected to the same signal output end S1(+) of the data driving IC;
预充电控制电路200包括：与电连接的各数据线(D1、D3和D5)一一对应的第二开关晶体管T2，第二开关晶体管T2的栅极与不同的第二控制信号线电连接，如与D1电连接的第二开关晶体管T2的栅极与第二控制信号线Pre_R电连接，如与D3电连接的第二开关晶体管T2的栅极与第二控制信号线Pre_B电连接，如与D5电连接的第二开关晶体管T2的栅极与第二控制信号线Pre_G电连接，各第二开关晶体管T2的第一极与对应的数据线(D1、D3、D5)电连接，各第二开关晶体管T2的第二极与预充电线S_电连接。The precharge control circuit 200 includes: a second switch transistor T2 corresponding to each of the electrically connected data lines (D1, D3 and D5) one-to-one, and the gate of the second switch transistor T2 is electrically connected to different second control signal lines, For example, the gate of the second switch transistor T2, which is electrically connected to D1, is electrically connected to the second control signal line Pre_R, and the gate of the second switch transistor T2, which is electrically connected to D3, is electrically connected to the second control signal line Pre_B, for example, to the second control signal line Pre_B. The gate of the second switch transistor T2 electrically connected to D5 is electrically connected to the second control signal line Pre_G, the first pole of each second switch transistor T2 is electrically connected to the corresponding data line (D1, D3, D5), and each second switch transistor T2 is electrically connected to the corresponding data line (D1, D3, D5). The second pole of the switching transistor T2 is electrically connected to the precharge line S_.
进一步地，在具体实施时，本发明实施例提供的上述显示面板中，如图4所示，第一控制信号线(MUXR、MUXG、MUXB)的数量与第二控制信号线(Pre_R、Pre_G、Pre_B)的数量相同。Further, in the specific implementation, in the above-mentioned display panel provided by the embodiment of the present invention, as shown in FIG. Pre_B) is the same amount.
进一步地，在具体实施时，本发明实施例提供的上述显示面板中，如图4所示，预充电线S_包括两条子预充电线S_odd(+)和S_even(-)，相邻两条数据线通过对应的第二开关晶体管与不同的子预充电线电连接，例如奇数列的数据线(左侧起第D1、D3、D5、D7……)连接到S_odd(+)、偶数列的数据线(左侧起第D2、D4、D6、D8……)连接到S_even(-)。Further, in the specific implementation, in the above-mentioned display panel provided by the embodiment of the present invention, as shown in FIG. 4 , the precharge line S_ includes two sub-precharge lines S_odd(+) and S_even(-), two adjacent sub-precharge lines S_odd(+) and S_even(-) The data lines are electrically connected to different sub-precharge lines through corresponding second switching transistors, for example, the data lines of odd columns (D1, D3, D5, D7, ... from the left) are connected to S_odd(+), the data lines of even columns The data lines (D2, D4, D6, D8... from the left) are connected to S_even(-).
进一步地，在具体实施时，本发明实施例提供的上述显示面板中，如图4所示，S_odd的电压极性需与数据驱动IC的输出端S1输出的电压的极性保持一致，S_even的电压极性需与数据驱动IC的输出端S2输出的电压的极性保持一致，且随着帧切换一起进行极性切换，并非固定的正负极性，图4中对S_odd(+)和S_even(-)、S1(+)和S2(-)进行正负标记，仅为示意S_odd(+)和S_even(-)极性相反，S1(+)和S2(-)极性相反，奇数列的数据线(左侧起第D1、D3、D5、D7……)连接到S_odd(+)、偶数列的数据线(左侧起第D2、D4、D6、D8……)连接到S_even(-)，即相邻两列亚像素充极性相反的电压。Further, in the specific implementation, in the above-mentioned display panel provided by the embodiment of the present invention, as shown in FIG. 4 , the voltage polarity of S_odd needs to be consistent with the polarity of the voltage output by the output terminal S1 of the data driving IC, and the voltage polarity of S_even The voltage polarity needs to be consistent with the polarity of the voltage output by the output terminal S2 of the data driver IC, and the polarity switching is performed along with the frame switching. It is not a fixed positive and negative polarity. S_odd(+) and S_even (-), S1(+), and S2(-) are marked with positive and negative, just to show that S_odd(+) and S_even(-) have opposite polarities, S1(+) and S2(-) have opposite polarities, and the odd-numbered columns have opposite polarities. The data lines (D1, D3, D5, D7...) from the left are connected to S_odd(+), and the data lines of the even columns (D2, D4, D6, D8...) from the left are connected to S_even(-) , that is, two adjacent columns of sub-pixels are charged with opposite voltages.
进一步地，在具体实施时，本发明实施例提供的上述显示面板中，如图4所示，从左侧的第一个第二开关晶体管T2起，第二控制信号线Pre_R、Pre_G和Pre_B依次连接第二开关晶体管T2的栅极。第二控制信号线Pre_R控制与亚像素R电连接的数据线(左侧起第D1、D4、D7、……)，第二控制信号线Pre_G控制与亚像素G电连接的数据线(左侧起第D2、D5、D8、……)，第二控制信号线Pre_B控制与亚像素B电连接的数据线(左侧起第D3、D6、D9、……)。Further, in the specific implementation, in the above-mentioned display panel provided by the embodiment of the present invention, as shown in FIG. 4 , starting from the first second switch transistor T2 on the left, the second control signal lines Pre_R, Pre_G and Pre_B are sequentially The gate of the second switching transistor T2 is connected. The second control signal line Pre_R controls the data lines electrically connected to the sub-pixel R (D1, D4, D7, . D2, D5, D8, ...), the second control signal line Pre_B controls the data lines electrically connected to the sub-pixel B (D3, D6, D9, ... from the left).
进一步地，在具体实施时，本发明实施例提供的上述显示面板中，如图4所示，还包括呈阵列排布的多个颜色不同的亚像素(如R、G和B)，每一列亚像素的颜色相同，如图4中从左侧开始，第一列亚像素均为R亚像素，第二列亚像素均为G亚像素，第三列亚像素均为B亚像素，第四列亚像素均为R亚像素，依次类推，每一条数据线如D1与对应的一列亚像素R电连接；Further, during specific implementation, the above-mentioned display panel provided by the embodiment of the present invention, as shown in FIG. 4 , further includes a plurality of sub-pixels (such as R, G, and B) with different colors arranged in an array. The colors of the sub-pixels are the same. From the left in Figure 4, the sub-pixels in the first column are all R sub-pixels, the sub-pixels in the second column are G sub-pixels, the sub-pixels in the third column are B sub-pixels, and the fourth column sub-pixels are all B sub-pixels. Column sub-pixels are all R sub-pixels, and so on, each data line such as D1 is electrically connected to a corresponding column of sub-pixels R;
每一MUX信号输入电路100与三条数据线(D1、D3和D5)电连接，与MUX信号输入电路100对应的预充电控制电路200与相同的三条数据线(D1、D3和D5)电连接，且三条数据线(D1、D3和D5)电连接的亚像素列的颜色均不相同，如数据线D1电连接R亚像素列，数据线D3电连接B亚像素列，数据线D5电连接G亚像素列。Each MUX signal input circuit 100 is electrically connected with three data lines (D1, D3 and D5), and the precharge control circuit 200 corresponding to the MUX signal input circuit 100 is electrically connected with the same three data lines (D1, D3 and D5), And the colors of the sub-pixel columns electrically connected by the three data lines (D1, D3 and D5) are all different, for example, the data line D1 is electrically connected to the R sub-pixel column, the data line D3 is electrically connected to the B sub-pixel column, and the data line D5 is electrically connected to the G sub-pixel column. Subpixel columns.
进一步地，在具体实施时，本发明实施例提供的上述显示面板可以为液晶显示面板，也可以为有机发光显示面板。Further, in specific implementation, the above-mentioned display panel provided by the embodiment of the present invention may be a liquid crystal display panel or an organic light-emitting display panel.
进一步地，在具体实施时，如图4所示，本发明实施例提供的上述显示面板是以液晶显示面板为例，显示面板还包括与数据线(D1、D2、D3……)垂直交叉设置的栅线(G1、G2、G3……)，以1920条栅线为例，栅线(G1、G2、G3……)和数据线(D1、D2、D3……)限定出多个亚像素单元，每一个像素单元均包括像素第三开关晶体管T3、存储电容Cst和液晶电容Clc，像素单元的结构与现有技术中的结构相同，本发明实施例只是示意性说明，在此不做详细阐述。Further, in the specific implementation, as shown in FIG. 4 , the above-mentioned display panel provided by the embodiment of the present invention is a liquid crystal display panel as an example, and the display panel also includes a vertical cross arrangement with the data lines (D1, D2, D3...) The grid lines (G1, G2, G3...) of the Each pixel unit includes a third pixel switching transistor T3, a storage capacitor Cst and a liquid crystal capacitor Clc, and the structure of the pixel unit is the same as that in the prior art. The embodiment of the present invention is only a schematic illustration, which is not detailed here. elaborate.
进一步地，在具体实施时，在本发明实施例提供的显示面板中，如图4所示，所有第一开关晶体管T1和第二开关晶体管T2均为N型晶体管。Further, in the specific implementation, in the display panel provided by the embodiment of the present invention, as shown in FIG. 4 , all the first switching transistors T1 and the second switching transistors T2 are N-type transistors.
当然，在具体实施时，在本发明实施例提供的上述显示面板中，所有第一开关晶体管T1和第二开关晶体管T2也可以均为P型晶体管。Of course, during specific implementation, in the above-mentioned display panel provided by the embodiment of the present invention, all the first switching transistors T1 and the second switching transistors T2 may also be P-type transistors.
进一步地，在具体实施时，N型晶体管在高电位作用下导通，在低电位作用下截止；P型晶体管在高电位作用下截止，在低电位作用下导通。Further, in specific implementation, the N-type transistor is turned on under the action of a high potential and turned off under the action of a low potential; the P-type transistor is turned off under the action of a high potential and turned on under the action of a low potential.
需要说明的是本发明上述实施例中提到的开关晶体管可以是薄膜晶体管(TFT，Thin Film Transistor)，也可以是金属氧化物半导体场效应管(MOS，Metal OxideScmiconductor)，在此不做限定。在具体实施中，这些开关晶体管的第一极和第二极根据晶体管类型以及输入信号的不同，其功能可以互换，在此不做具体区分。具体地，本发明上述实施例中提到的开关晶体管的第一极可以为源极，第二极为漏极，或者第一极可以为漏极，第二极为源极，在此不做具体区分。It should be noted that the switching transistor mentioned in the above embodiments of the present invention may be a thin film transistor (TFT, Thin Film Transistor) or a metal oxide semiconductor field effect transistor (MOS, Metal Oxide Scmiconductor), which is not limited herein. In a specific implementation, the functions of the first pole and the second pole of these switching transistors can be interchanged according to the type of the transistor and the input signal, and no specific distinction is made here. Specifically, the first electrode of the switching transistor mentioned in the above embodiments of the present invention may be the source electrode and the second electrode may be the drain electrode, or the first electrode may be the drain electrode and the second electrode may be the source electrode, and no specific distinction will be made here. .
下面通过具体的实施例对本发明实施例图4所示的显示面板的像素充电原理进行详细说明，对应的电路控制时序图如图5所示，图4中所有第一开关晶体管T1和第二开关晶体管T2均为N型晶体管。The pixel charging principle of the display panel shown in FIG. 4 according to the embodiment of the present invention will be described in detail below through specific embodiments. The corresponding circuit control timing diagram is shown in FIG. 5 . In FIG. 4 , all the first switch transistors T1 and the second switches are The transistors T2 are all N-type transistors.
本发明实施例提供的上述显示面板中，如图5所示，图5为图4对应的电路控制时序图，本发明图5所示的时序与传统方案比，Gate开启时间保持不变，变更各MUX开启时间使MUXG＝MUXB＜MUXR、Gate＝MUXR+MUXG+MUXB。In the above-mentioned display panel provided by the embodiment of the present invention, as shown in FIG. 5 , FIG. 5 is a circuit control timing diagram corresponding to FIG. 4 . Compared with the traditional solution, the timing sequence shown in FIG. 5 of the present invention remains unchanged, and the change Each MUX ON time is such that MUXG=MUXB<MUXR, and Gate=MUXR+MUXG+MUXB.
图4是以3-MUX显示产品为例，与传统方案图1相比，本发明增加了与MUX信号输入电路100一一对应的预充电控制电路200、第二控制信号线(Pre_R、Pre_G、Pre_B)和预充电线S_odd(+)和S_even(-)，其它部分未做变更。因此本设计既可以工作在有预充电的模式Precharge mode，也可以工作在不进行预充电的常规模式Normal mode。FIG. 4 is an example of a 3-MUX display product. Compared with the conventional solution in FIG. 1 , the present invention adds a pre-charge control circuit 200 and a second control signal line (Pre_R, Pre_G, Pre_B) and precharge lines S_odd(+) and S_even(-), other parts are unchanged. Therefore, this design can work either in Precharge mode with precharge or in Normal mode without precharge.
Normal mode：和传统方案图1的工作状态一致，不会额外增加像素的充电时间，若要工作在Normal mode，只需要将预充电控制电路200中的各第二开关晶体管T2与对应电连接的数据线断开接口，即第二控制信号线(Pre_R、Pre_G、Pre_B)保持低电平，其它部分电路与传统工作方案图1保持一致。即在显示待显示帧画面时，数据驱动IC控制第一控制信号线进行切换控制第一开关晶体管T1导通，即数据驱动IC、数据传输线S、第一开关晶体管T、数据线(D1、D2、D3……)与亚像素单元之间形成数据电压输出通道，然后数据驱动IC通过数据传输线向对应列的数据线输出数据电压，从而使数据电压输出到对应的亚像素单元中。Normal mode: It is consistent with the working state of the traditional solution in FIG. 1, and the charging time of the pixel will not be increased. To work in the Normal mode, it is only necessary to connect each second switching transistor T2 in the precharge control circuit 200 to the corresponding electrical connection. The data line is disconnected from the interface, that is, the second control signal lines (Pre_R, Pre_G, Pre_B) are kept at a low level, and other parts of the circuit are kept consistent with the traditional working scheme as shown in FIG. 1 . That is, when the frame picture to be displayed is displayed, the data driving IC controls the first control signal line to switch and control the first switching transistor T1 to be turned on, that is, the data driving IC, the data transmission line S, the first switching transistor T, the data line (D1, D2 , D3 .
Precharge mode：如图4和图5所示，图5为图4对应的电路控制时序图。以扫描第一行栅线G1以及一对MUX信号输入电路100和预充电控制电路200为例，对应的数据线为D1、D3和D5，在第一行栅线G1的扫描时间段，在对第一条数据线D1电连接的R亚像素加载数据电压时，第一控制信号线MUXR为高电平信号，数据线D1电连接的第一开关晶体管T1导通，数据驱动IC通过第一开关晶体管T1对数据线D1加载数据电压，第二控制信号线Pre_R一直为低电平信号，数据线D1电连接的第二开关晶体管T2截止，第二控制信号线Pre_B和Pre_G均为高电平信号，数据线D3和数据线D5电连接的第二开关晶体管T2均导通，预充电信号线S_odd(+)对数据线D3和数据线D5加载预充电电压，在数据线D1加载数据电压结束时，也即对数据线D3和数据线D5预充电完成时，在数据驱动IC依次对数据线D3和数据线D5加载数据电压时间内，第二控制信号线Pre_B和Pre_G为均低电平信号，数据线D3和数据线D5与第二开关晶体管T2断开。本发明采用特殊的MUX控制时序，将一行栅线的扫描时间段第一个开启的MUXR开启时间占比加大(若MUXG或MUXB为第一个开启，可将MUXG或MUXB开启时间占比加大)，本发明以MUXR第一个开启为例进行说明，以便增加栅极驱动IC对由MUXR控制的数据线和对应的亚像素R(显示面板左侧起第1、4、7、……列数据线和亚像素)的充电时间，保证亚像素R充电时间加长。亚像素R充电的同时，Pre_G和Pre_B保持与MUXR同步开启、Pre_R一直保持低电平，Pre_G控制的数据线和对应的亚像素G(显示面板左侧起第2、5、8、……列数据线和亚像素)与Pre_B控制的数据线和对应的亚像素B(显示面板左侧起第3、6、9、……列数据线和亚像素)中的奇数列数据线连接到S_odd(+)、偶数列数据线连接到S_even(-)，S_odd(+)提供与数据驱动IC控制的奇数列数据线极性一致的L127灰阶电压信号、S_even(-)提供与数据驱动IC控制的偶数列数据线极性一致的L127灰阶电压信号(也可以为其它灰阶电压，优先采用L127)。从而达到在数据驱动IC为亚像素R和对应的数据线充电的同时S_odd(+)/S_even(-)为亚像素G、对应的数据线和亚像素B、对应的数据线预充相同极性的L127电压。当预充电完成后，在MUXG和MUXB开启阶段Pre_R、Pre_G和Pre_B均保持低电平，关闭各第二开关晶体管T2与数据线的电连接，由数据驱动IC依次对亚像素G电连接的数据线和亚像素B电连接的数据线充电。由于亚像素G和亚像素B已经预充L127电压，所以数据驱动IC可以在较短的MUXG、MUXB开启时间内将亚像素G和亚像素B充电到最高电位L255或放电到最低电位L0，或者是L0～L255之间的任意灰阶，其充电效果示意图如图6A至图6C所示，图6A至图6C分别为像素R、G和B从0灰阶电压充电至255灰阶电压、从127灰阶电压充电至255灰阶电压、从127灰阶电压放电至0灰阶电压的像素充电效果示意图，可以看出相比于图3A至图3C所示的充电不足的情况具有明显改善，因此本发明实施例提供的显示面板可以解决现有技术中像素充电不足的问题。Precharge mode: As shown in Figure 4 and Figure 5, Figure 5 is the circuit control timing diagram corresponding to Figure 4. Taking the scanning of the gate line G1 of the first row and a pair of MUX signal input circuits 100 and the precharge control circuit 200 as an example, the corresponding data lines are D1, D3 and D5. When the R sub-pixel electrically connected to the first data line D1 is loaded with the data voltage, the first control signal line MUXR is a high level signal, the first switch transistor T1 electrically connected to the data line D1 is turned on, and the data driving IC passes through the first switch The transistor T1 loads the data voltage on the data line D1, the second control signal line Pre_R is always a low-level signal, the second switch transistor T2 electrically connected to the data line D1 is turned off, and the second control signal lines Pre_B and Pre_G are both high-level signals , the second switch transistors T2 electrically connected to the data line D3 and the data line D5 are both turned on, and the precharge signal line S_odd(+) loads the data line D3 and the data line D5 with the precharge voltage. , that is, when the data line D3 and the data line D5 are precharged, the second control signal lines Pre_B and Pre_G are both low-level signals within the time that the data driver IC sequentially loads the data line D3 and the data line D5 with the data voltage. The data line D3 and the data line D5 are disconnected from the second switching transistor T2. The present invention adopts a special MUX control sequence to increase the ratio of the MUXR turn-on time that is turned on first in the scanning time period of a row of gate lines (if MUXG or MUXB is the first turn-on time, the ratio of the turn-on time of MUXG or MUXB can be increased The present invention takes the first MUXR turned on as an example to illustrate, so as to increase the gate driving IC to the data lines controlled by the MUXR and the corresponding sub-pixels R (the 1st, 4th, 7th, ... from the left side of the display panel). The charging time of the column data line and the sub-pixel) ensures that the charging time of the sub-pixel R is prolonged. While the sub-pixel R is being charged, Pre_G and Pre_B are kept on synchronously with MUXR, Pre_R is always kept low, the data line controlled by Pre_G and the corresponding sub-pixel G (the 2nd, 5th, 8th, ... columns from the left side of the display panel) data lines and sub-pixels) and the data lines controlled by Pre_B and the odd-numbered column data lines in the corresponding sub-pixel B (the 3rd, 6th, 9th, ... columns of data lines and sub-pixels from the left side of the display panel) are connected to S_odd ( +), the data lines of the even columns are connected to S_even(-), S_odd(+) provides the L127 gray-scale voltage signal consistent with the polarity of the data lines of the odd columns controlled by the data drive IC, and S_even(-) provides the voltage signals controlled by the data drive IC. The L127 gray-scale voltage signal with the same polarity of the data lines of the even columns (may also be other gray-scale voltages, preferably L127). Thus, S_odd(+)/S_even(-) is precharged with the same polarity for sub-pixel G, corresponding data line and sub-pixel B, and corresponding data line while the data driver IC is charging sub-pixel R and corresponding data line. the L127 voltage. After the pre-charging is completed, Pre_R, Pre_G and Pre_B are all kept at low level during the MUXG and MUXB turn-on stages, the electrical connection between each second switch transistor T2 and the data line is turned off, and the data driver IC sequentially connects the data of the sub-pixel G to the electrical connection. The line and the data line electrically connected to the sub-pixel B are charged. Since sub-pixel G and sub-pixel B have been precharged with L127 voltage, the data driver IC can charge sub-pixel G and sub-pixel B to the highest potential L255 or discharge to the lowest potential L0 within a short MUXG, MUXB turn-on time, or It is any gray scale between L0 and L255. The schematic diagrams of its charging effect are shown in Figure 6A to Figure 6C. Figure 6A to Figure 6C respectively charge the pixels R, G and B from 0 gray scale voltage to 255 gray scale voltage, from A schematic diagram of the pixel charging effect of charging from 127 grayscale voltage to 255 grayscale voltage and discharging from 127 grayscale voltage to 0 grayscale voltage. Therefore, the display panel provided by the embodiment of the present invention can solve the problem of insufficient charging of pixels in the prior art.
综上所述，本发明实施例提供的上述显示面板可以在常规设计提供的像素充电时间之上，额外增加像素充电时间。因此，本发明实施例提供的上述显示面板的驱动方法不仅可以解决现有显示产品像素充电不足的问题，而且还可以为超高分辨率、超高频、大尺寸、无边框等对像素充电时间要求极为严苛的技术方向提供解决方案。To sum up, the above-mentioned display panel provided by the embodiment of the present invention can additionally increase the pixel charging time on top of the pixel charging time provided by the conventional design. Therefore, the above-mentioned driving method of the display panel provided by the embodiment of the present invention can not only solve the problem of insufficient charging of the pixels of the existing display products, but also can charge the pixels for ultra-high resolution, ultra-high frequency, large size, borderless, etc. Solutions for extremely demanding technical directions.
基于同一发明构思，本发明实施例还提供了一种的显示面板的驱动方法，包括：Based on the same inventive concept, an embodiment of the present invention also provides a method for driving a display panel, including:
MUX信号输入电路在各行栅线扫描时间段，通过数据驱动IC的同一信号输出端依次对电连接的各条数据线加载数据电压；在栅线扫描时间段首次加载数据电压的数据线为第一数据线，其他数据线为第二数据线；The MUX signal input circuit sequentially loads data voltages on each data line that is electrically connected through the same signal output terminal of the data driver IC during the gate line scanning period of each row; the data line that is loaded with data voltage for the first time during the gate line scanning period is the first data line, other data lines are second data lines;
在MUX信号输入电路对第一数据线加载数据电压的同时，预充电控制电路向至少一条第二数据线加载预充电电压；When the MUX signal input circuit loads the data voltage on the first data line, the precharge control circuit loads the precharge voltage on the at least one second data line;
在MUX信号输入电路对第二数据线加载数据电压时，断开预充电控制电路与数据线之间的电连接。When the MUX signal input circuit applies the data voltage to the second data line, the electrical connection between the precharge control circuit and the data line is disconnected.
本发明实施例提供的显示面板的驱动方法，当MUX信号输入电路在栅线扫描时间段对第一数据线加载数据电压的同时，预充电控制电路向至少一条第二数据线加载预充电电压，当MUX信号输入电路在栅线扫描时间段依次对第二数据线加载数据电压时，第二数据线由于已经预先加载了预充电电压，因此可以在现有技术提供的像素充电时间基础上，额外增加像素充电时间。因此，本发明实施例提供的上述显示面板的驱动方法不仅可以解决现有显示产品像素充电不足的问题，而且还可以为超高分辨率、超高频、大尺寸、无边框等对像素充电时间要求极为严苛的技术方向提供解决方案。In the driving method of the display panel provided by the embodiment of the present invention, when the MUX signal input circuit loads the first data line with the data voltage during the gate line scanning period, the precharge control circuit loads the precharge voltage on at least one second data line, When the MUX signal input circuit sequentially loads the second data line with the data voltage during the gate line scanning period, the second data line has been pre-loaded with the pre-charge voltage, so on the basis of the pixel charging time provided by the prior art, additional Increase pixel charging time. Therefore, the above-mentioned driving method of the display panel provided by the embodiment of the present invention can not only solve the problem of insufficient charging of the pixels of the existing display products, but also can charge the pixels for ultra-high resolution, ultra-high frequency, large size, borderless, etc. Solutions for extremely demanding technical directions.
进一步地，在具体实施时，在本发明实施例提供的上述显示面板的驱动方法中，数据驱动IC向第一数据线加载数据电压的时长大于向第二数据线加载数据电压的时长。以本发明实施例图4提供的显示面板为例，由于现有技术中在一行栅线扫描时间内，对R、G和B三个像素充电时间相同，均为一行栅线扫描时间的1/3，会导致像素充电不足，本发明实施例通过在一行栅线扫描时间内，在向首次加载数据电压的第一数据线如D1加载数据电压时，同时向第二数据线如D3和D5加载预充电电压，在第一数据线D1加载数据电压结束、依次对D3和D5加载数据电压时，断开预充电电路200与数据线D3和D5的电连接。由于第二数据线如D3和D5已经预先加载了预充电电压，因此本发明通过将数据驱动IC向第一数据线如D1加载数据电压的时长设置为大于向第二数据线如D3和D5加载数据电压的时长，这样可以实现每一MUX信号输入电路100通过对应第一开关晶体管T1控制的三条数据线均在现有技术提供的像素充电时间基础上，额外增加像素充电时间。因此，能够更好的解决现有显示产品像素充电不足的问题。Further, in specific implementation, in the above-mentioned driving method of the display panel provided by the embodiment of the present invention, the data driving IC loads the data voltage to the first data line for a longer time than the second data line. Taking the display panel provided in FIG. 4 according to the embodiment of the present invention as an example, in the prior art, in the prior art, in the scanning time of one row of gate lines, the charging time for three pixels R, G and B is the same, which is 1/1 of the scanning time of one row of gate lines. 3. It will lead to insufficient charging of the pixel. In the embodiment of the present invention, in the scanning time of one row of gate lines, when loading the data voltage to the first data line such as D1 that is loaded with the data voltage for the first time, simultaneously loading the second data lines such as D3 and D5. For the precharge voltage, when the first data line D1 is loaded with the data voltage and the data voltage is loaded on D3 and D5 in sequence, the electrical connection between the precharge circuit 200 and the data lines D3 and D5 is disconnected. Since the second data lines such as D3 and D5 have been pre-loaded with the pre-charge voltage, the present invention sets the time period for the data driving IC to load the data voltage to the first data line such as D1 to be longer than that for the second data lines such as D3 and D5 In this way, each MUX signal input circuit 100 can increase the pixel charging time based on the pixel charging time provided in the prior art by the three data lines controlled by the corresponding first switch transistor T1. Therefore, the problem of insufficient charging of pixels in existing display products can be better solved.
进一步地，在具体实施时，在本发明实施例提供的上述显示面板的驱动方法中，向第二数据线加载数据电压的时长相同。Further, in the specific implementation, in the above-mentioned driving method of the display panel provided by the embodiment of the present invention, the duration of loading the data voltage to the second data line is the same.
进一步地，在具体实施时，为了保证第二数据线对应的像素能够更好的解决像素充电不足的问题，在本发明实施例提供的上述显示面板的驱动方法中，向第二数据线加载预充电电压的时长与向第一数据线加载数据电压的时长相同。Further, in the specific implementation, in order to ensure that the pixel corresponding to the second data line can better solve the problem of insufficient pixel charging, in the above-mentioned driving method of the display panel provided by the embodiment of the present invention, the second data line is loaded with a pre-loading method. The duration of the charging voltage is the same as the duration of charging the data voltage to the first data line.
在具体实施时，上述显示面板的驱动方法的工作原理可以参见上述显示面板中描述的工作原理，在此不做赘述。During specific implementation, for the working principle of the above-mentioned driving method of the display panel, reference may be made to the working principle described in the above-mentioned display panel, which will not be repeated here.
基于同一发明构思，本发明实施例还提供了一种显示装置，包括上述的显示面板。该显示装置可以为：手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品的显示面板。该显示装置的实施可以参见上述显示面板的实施例，重复之处不再赘述。Based on the same inventive concept, an embodiment of the present invention further provides a display device, including the above-mentioned display panel. The display device can be a display panel of any product with display function, such as a mobile phone, a tablet computer, a TV, a monitor, a notebook computer, a digital photo frame, a navigator, and the like. For the implementation of the display device, reference may be made to the above-mentioned embodiments of the display panel, and repeated descriptions will not be repeated.
本发明实施例提供的一种显示面板、其驱动方法及显示装置，该显示面板通过设置与MUX信号输入电路一一对应的预充电控制电路，且每一对对应的MUX信号输入电路和预充电控制电路与相同预设数量的数据线电连接，当MUX信号输入电路在栅线扫描时间段对第一数据线加载数据电压的同时，预充电控制电路向至少一条第二数据线加载预充电电压，当MUX信号输入电路在栅线扫描时间段依次对第二数据线加载数据电压时，第二数据线由于已经预先加载了预充电电压，因此可以在现有技术提供的像素充电时间基础上，额外增加像素充电时间。因此，本发明实施例提供的上述显示面板不仅可以解决现有显示产品像素充电不足的问题，而且还可以为超高分辨率、超高频、大尺寸、无边框等对像素充电时间要求极为严苛的技术方向提供解决方案。Embodiments of the present invention provide a display panel, a method for driving the same, and a display device. The display panel is provided with precharge control circuits corresponding to MUX signal input circuits one-to-one, and each pair of corresponding MUX signal input circuits and precharge The control circuit is electrically connected with the same preset number of data lines. When the MUX signal input circuit loads the first data line with the data voltage during the gate line scanning period, the precharge control circuit loads the precharge voltage on the at least one second data line. , when the MUX signal input circuit sequentially loads the second data line with the data voltage during the gate line scanning period, the second data line has been pre-loaded with the pre-charge voltage, so on the basis of the pixel charging time provided by the prior art, Additional pixel charging time. Therefore, the above-mentioned display panel provided by the embodiment of the present invention can not only solve the problem of insufficient charging of pixels in existing display products, but also can meet extremely strict requirements on pixel charging time for ultra-high resolution, ultra-high frequency, large size, and no border. Demanding technical direction to provide solutions.
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
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| CN201910480911.1ACN110211547A (en) | 2019-06-04 | 2019-06-04 | A kind of display panel, its driving method and display device |
| PCT/CN2020/087292WO2020244342A1 (en) | 2019-06-04 | 2020-04-27 | Display panel and driving method therefor, and display apparatus |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910480911.1ACN110211547A (en) | 2019-06-04 | 2019-06-04 | A kind of display panel, its driving method and display device |
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|---|---|
| CN110211547Atrue CN110211547A (en) | 2019-09-06 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910480911.1APendingCN110211547A (en) | 2019-06-04 | 2019-06-04 | A kind of display panel, its driving method and display device |
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|---|---|
| CN (1) | CN110211547A (en) |
| WO (1) | WO2020244342A1 (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110930889A (en)* | 2019-12-27 | 2020-03-27 | 厦门天马微电子有限公司 | Display panel, driving method thereof and display device |
| WO2020244342A1 (en)* | 2019-06-04 | 2020-12-10 | 京东方科技集团股份有限公司 | Display panel and driving method therefor, and display apparatus |
| CN112669749A (en)* | 2020-12-28 | 2021-04-16 | 合肥维信诺科技有限公司 | Display panel, driving method thereof and display device |
| CN112863414A (en)* | 2019-11-26 | 2021-05-28 | 上海和辉光电有限公司 | Display panel and driving method thereof |
| CN114019737A (en)* | 2021-11-15 | 2022-02-08 | 合肥京东方光电科技有限公司 | Array substrate, driving method thereof, display panel and display device |
| CN114446236A (en)* | 2020-11-06 | 2022-05-06 | 联咏科技股份有限公司 | Method for driving display screen and driving circuit thereof |
| CN115691384A (en)* | 2022-10-21 | 2023-02-03 | 厦门天马微电子有限公司 | Display panel and display device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035891B (en)* | 2021-03-15 | 2024-03-15 | 厦门天马微电子有限公司 | Array substrate and display device |
| CN115273721B (en)* | 2022-08-02 | 2025-03-28 | 京东方科技集团股份有限公司 | Display panel and display device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0755044A1 (en)* | 1995-07-18 | 1997-01-22 | International Business Machines Corporation | Device and method for driving liquid crystal display with precharge pf display data lines |
| CN1664910A (en)* | 2005-04-11 | 2005-09-07 | 友达光电股份有限公司 | Time division driven display and its driving method |
| US20060221701A1 (en)* | 2005-04-01 | 2006-10-05 | Au Optronics Corp. | Time division driven display and method for driving same |
| KR100666643B1 (en)* | 2005-09-15 | 2007-01-09 | 삼성에스디아이 주식회사 | Driving method of organic light emitting display device and organic light emitting display device |
| CN101055705A (en)* | 2006-04-11 | 2007-10-17 | 恩益禧电子股份有限公司 | Driver circuit, display apparatus, and method of driving the same |
| CN101620841A (en)* | 2008-06-30 | 2010-01-06 | 恩益禧电子股份有限公司 | Display panel driving method and display apparatus |
| CN103106862A (en)* | 2011-11-15 | 2013-05-15 | 乐金显示有限公司 | Display device and method for driving the same |
| CN105637578A (en)* | 2013-10-17 | 2016-06-01 | 精工爱普生株式会社 | Electro-optical device, driving method of electro-optical device, and electronic device |
| US20160329025A1 (en)* | 2015-05-08 | 2016-11-10 | Samsung Display Co., Ltd. | Display apparatus and driving method thereof |
| US20170270887A1 (en)* | 2016-03-17 | 2017-09-21 | Seiko Epson Corporation | Electrooptical device, electronic device, and control method of electrooptical device |
| CN108682404A (en)* | 2018-03-07 | 2018-10-19 | 友达光电股份有限公司 | Display panel and precharging method |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI282956B (en)* | 2000-05-09 | 2007-06-21 | Sharp Kk | Data signal line drive circuit, and image display device incorporating the same |
| KR101169052B1 (en)* | 2005-06-30 | 2012-07-27 | 엘지디스플레이 주식회사 | Analog Sampling Apparatus For Liquid Crystal Display |
| KR20070005967A (en)* | 2005-07-05 | 2007-01-11 | 삼성전자주식회사 | LCD, its driving device and method |
| KR100793556B1 (en)* | 2006-06-05 | 2008-01-14 | 삼성에스디아이 주식회사 | Driving circuit and organic light emitting display device using same |
| JP2009025656A (en)* | 2007-07-20 | 2009-02-05 | Tpo Displays Corp | Drive unit of liquid crystal display device |
| KR101493226B1 (en)* | 2011-12-26 | 2015-02-17 | 엘지디스플레이 주식회사 | Method and apparatus for measuring characteristic parameter of pixel driving circuit of organic light emitting diode display device |
| KR102034061B1 (en)* | 2013-06-29 | 2019-11-08 | 엘지디스플레이 주식회사 | Liquid crystal display device |
| CN110211547A (en)* | 2019-06-04 | 2019-09-06 | 京东方科技集团股份有限公司 | A kind of display panel, its driving method and display device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0755044A1 (en)* | 1995-07-18 | 1997-01-22 | International Business Machines Corporation | Device and method for driving liquid crystal display with precharge pf display data lines |
| US20060221701A1 (en)* | 2005-04-01 | 2006-10-05 | Au Optronics Corp. | Time division driven display and method for driving same |
| CN1664910A (en)* | 2005-04-11 | 2005-09-07 | 友达光电股份有限公司 | Time division driven display and its driving method |
| KR100666643B1 (en)* | 2005-09-15 | 2007-01-09 | 삼성에스디아이 주식회사 | Driving method of organic light emitting display device and organic light emitting display device |
| CN101055705A (en)* | 2006-04-11 | 2007-10-17 | 恩益禧电子股份有限公司 | Driver circuit, display apparatus, and method of driving the same |
| CN101620841A (en)* | 2008-06-30 | 2010-01-06 | 恩益禧电子股份有限公司 | Display panel driving method and display apparatus |
| CN103106862A (en)* | 2011-11-15 | 2013-05-15 | 乐金显示有限公司 | Display device and method for driving the same |
| CN105637578A (en)* | 2013-10-17 | 2016-06-01 | 精工爱普生株式会社 | Electro-optical device, driving method of electro-optical device, and electronic device |
| US20160329025A1 (en)* | 2015-05-08 | 2016-11-10 | Samsung Display Co., Ltd. | Display apparatus and driving method thereof |
| US20170270887A1 (en)* | 2016-03-17 | 2017-09-21 | Seiko Epson Corporation | Electrooptical device, electronic device, and control method of electrooptical device |
| CN108682404A (en)* | 2018-03-07 | 2018-10-19 | 友达光电股份有限公司 | Display panel and precharging method |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020244342A1 (en)* | 2019-06-04 | 2020-12-10 | 京东方科技集团股份有限公司 | Display panel and driving method therefor, and display apparatus |
| CN112863414A (en)* | 2019-11-26 | 2021-05-28 | 上海和辉光电有限公司 | Display panel and driving method thereof |
| CN110930889A (en)* | 2019-12-27 | 2020-03-27 | 厦门天马微电子有限公司 | Display panel, driving method thereof and display device |
| CN114446236A (en)* | 2020-11-06 | 2022-05-06 | 联咏科技股份有限公司 | Method for driving display screen and driving circuit thereof |
| CN114446236B (en)* | 2020-11-06 | 2024-11-01 | 联咏科技股份有限公司 | Method for driving display screen and driving circuit thereof |
| CN112669749A (en)* | 2020-12-28 | 2021-04-16 | 合肥维信诺科技有限公司 | Display panel, driving method thereof and display device |
| CN114019737A (en)* | 2021-11-15 | 2022-02-08 | 合肥京东方光电科技有限公司 | Array substrate, driving method thereof, display panel and display device |
| CN114019737B (en)* | 2021-11-15 | 2023-11-14 | 合肥京东方光电科技有限公司 | Array substrate and driving method, display panel, display device |
| CN115691384A (en)* | 2022-10-21 | 2023-02-03 | 厦门天马微电子有限公司 | Display panel and display device |
| Publication number | Publication date |
|---|---|
| WO2020244342A1 (en) | 2020-12-10 |
| Publication | Publication Date | Title |
|---|---|---|
| US10255840B2 (en) | Display panel, driving method for display panel, and display device | |
| CN110211547A (en) | A kind of display panel, its driving method and display device | |
| CN110136630B (en) | A display panel, a driving method thereof, and a display device | |
| CN106019743A (en) | Array substrate, method for driving array substrate, and relevant devices | |
| KR100549983B1 (en) | LCD and its driving method | |
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| JP2004309669A (en) | Active matrix display device and driving method thereof | |
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| KR20140035756A (en) | Liquid crystal display device inculding inspection circuit and inspection method thereof | |
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| CN216118747U (en) | Circuit structure for reducing Data Demux wiring load | |
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| CN102820014A (en) | Driving method and driving circuit for liquid crystal display, and liquid crystal display | |
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| US20180240426A1 (en) | Pixel circuit, display device, display apparatus and driving method | |
| CN106409252A (en) | Array substrate and driving method thereof, display panel and display device |
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| RJ01 | Rejection of invention patent application after publication | Application publication date:20190906 |