Patent Publication Number: US-2018047352-A1

Title: Display panel and display device based on hsd structure

Description:
FIELD OF THE DISCLOSURE 
     The present disclosure relates to a liquid crystal display technology field, and more particularly to a display panel and a display device based on a HSD structure. 
     BACKGROUND OF THE DISCLOSURE 
     A half source driving (HSD) structure is widely applied in manufacturing a display panel, which multiplies the amount of scanning lines and halves the corresponding amount of data lines. Compared with a conventional display panel structure, the amount of signal lines in a display panel with a HSD structure will be reduced significantly, which can decrease the amount of data line driver chips and as well as the costs. 
     However, a pixel cyclic unit in a display panel with a HSD structure contains 2 or 4 pixels, as shown in  FIG. 1 , data lines and scanning lines in the HSD structure form a pixel cyclic unit, the pixel cyclic unit contains 2 pixels (A, B). The HSD structure includes at least two columns of pixel units ( 10 ,  11 ), the polarity of the first column of pixel unit  10  and that of the second column of pixel unit  11  is opposite, which fails to achieve point reversal between the first column of pixel unit  10  and the second column of pixel unit  11 , reducing image quality of a display panel. 
     Overall, a display panel and a display device based on a HSD structure are necessary to be provided to overcome the problems above. 
     SUMMARY OF THE DISCLOSURE 
     The technical issue that the present disclosure solves is to provide a display panel and a display device based on a HSD structure, which can better image quality of a display panel. 
     A proposal of the present disclosure to solve the problems above is: providing a display panel based on a HSD structure, the display panel includes: a pixel unit array with several couples of pixel units; several couples of scanning lines, each of the couples of scanning lines are disposed between at least one couple of pixel units and connected with the at least one couple of pixel units; a plurality of data lines, the adjacent data lines are disposed between at least one couple of pixel units and connected with the at least one couple of pixel units; a polarity of each of the pixel units is opposite to that of the adjacent pixel units; each couple of the scanning lines include a first scanning line and a second scanning line, one of the first scanning line and the second scanning line is connected with one of the each couple of the pixel units, the other one of the first scanning line and the second scanning line is connected with the other one of each couple of pixel units; the data lines include a first data line and a second data line, one of the first data line and the second data line is connected with one of the each couple of the pixel units, the other one of the first data line and the second data line is connected with the other one of each couple of pixel units; polarities of a data voltage transmitted by the first data line and that by the second data line are opposite; each couple of the pixel units include a first pixel unit and a second pixel unit, a polarity of the first pixel unit and that of the second pixel unit are opposite, the first pixel unit and the second pixel unit are disposed adjacently. 
     The couples of pixel units include at least four couples of the pixel units, the couples of scanning lines include at least two couples of the scanning lines, at least two couples of pixel units are disposed between each of the couples of the scanning lines; the plurality of data lines include at least three data lines, the at least two couples of pixel units are disposed between the adjacent data lines. 
     To solve the technical problems above, another proposal of the disclosure is: providing a display panel based on a HSD structure, the display panel includes: a pixel unit array with several couples of pixel units; several couples of scanning lines, each of the couples of scanning lines is disposed between at least one couple of pixel units and connected with the at least one couple of pixel unit; a plurality of data lines, the adjacent data lines are disposed between at least one couple of pixel units and connected with the at least one couple of pixel units; a polarity of each of the pixel units is opposite to that of the adjacent pixel units. 
     Each couple of the scanning lines include a first scanning line and a second scanning line, one of the first scanning line and the second scanning line is connected with one of the each couple of the pixel units, the other one of the first scanning line and the second scanning line is connected with the other one of each couple of pixel units. 
     The data lines include a first data line and a second data line, one of the first data line and the second data line is connected with one of the each couple of the pixel units, the other one of the first data line and the second data line is connected with the other one of each couple of pixel units. 
     Polarities of a data voltage transmitted by the first data line and that by the second data line are opposite. 
     Each couple of the pixel units include a first pixel unit and a second pixel unit, a polarity of the first pixel unit and that of the second pixel unit are opposite, the first pixel unit and the second pixel unit are disposed adjacently. 
     The couples of pixel units include at least four couples of the pixel units, the couples of scanning lines include at least two couples of the scanning lines, at least two couples of pixel units are disposed between each of the couples of the scanning lines. 
     The plurality of data lines include at least three data lines, the at least two couples of pixel units are disposed between the adjacent data lines. 
     The four second pixel units are disposed surrounding the first pixel unit, the four first pixel units are disposed surrounding the second pixel unit. 
     The display panel is a COA liquid crystal display panel. 
     To solve the technical problems above, another proposal of the disclosure is: providing a display device, the display panel includes: a pixel unit array with several couples of pixel units; several couples of scanning lines, each of the couples of scanning lines is disposed between at least one couple of pixel units and connected with the at least one couple of pixel unit; a plurality of data lines, the adjacent data lines are disposed between at least one couple of pixel units and connected with the at least one couple of pixel units; a polarity of each of the pixel units is opposite to that of the adjacent pixel units. 
     Each couple of the scanning lines include a first scanning line and a second scanning line, one of the first scanning line and the second scanning line is connected with one of the each couple of the pixel units, the other one of the first scanning line and the second scanning line is connected with the other one of each couple of pixel units. 
     The data lines include a first data line and a second data line, one of the first data line and the second data line is connected with one of the each couple of the pixel units, the other one of the first data line and the second data line is connected with the other one of each couple of pixel units. 
     Polarities of a data voltage transmitted by the first data line and that by the second data line are opposite. 
     Each couple of the pixel units include a first pixel unit and a second pixel unit, a polarity of the first pixel unit and that of the second pixel unit are opposite, the first pixel unit and the second pixel unit are disposed adjacently. 
     The couples of pixel units include at least four couples of the pixel units, the couples of scanning lines include at least two couples of the scanning lines, at least two couples of pixel units are disposed between each of the couples of the scanning lines. 
     The plurality of data lines include at least three data lines, the at least two couples of pixel units are disposed between the adjacent data lines. 
     The four second pixel units are disposed surrounding the first pixel unit, the four first pixel units are disposed surrounding the second pixel unit. 
     The display panel is a COA liquid crystal display panel. 
     Advantages of the disclosure: distinguishing from a conventional technique, the display panel based on a HSD structure of the disclosure includes: a pixel unit array with several couples of pixel units; several couples of scanning lines, each of the couples of scanning lines is disposed between at least one couple of pixel units and connected with the at least one couple of pixel unit; a plurality of data lines, the adjacent data lines are disposed between at least one couple of pixel units and connected with the at least one couple of pixel units; a polarity of each of the pixel units is opposite to that of the adjacent pixel units. By the method above, each pixel unit in a display panel of the disclosure is surrounded by pixel units with opposite polarity, which can achieve point reversal of pixel units and improve image quality of a display panel significantly. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a structural diagram of a pixel unit array in a display panel with a HSD structure according to a conventional technique; 
         FIG. 2  is a structural diagram of a display device according to the disclosure; 
         FIG. 3  is a structural diagram of a pixel unit array in a display panel with a HSD structure according to the disclosure. 
         FIG. 4  is an amplified structural diagram of a partial region A in  FIG. 3 . 
     
    
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS 
     Embodiments of the present disclosure are described in detail with the accompanying drawings as follows. 
     As shown in  FIG. 2 ,  FIG. 2  is a structural diagram of a display device according to the disclosure. The display device includes a display panel  21 , a grid drive unit  22  and a source drive unit  23 . The source drive unit is applied to light corresponding pixels of the display panel  21  according to an image to be displayed, the source drive unit  23  is applied to transfer received display data of the image to be displayed to data voltages, the data voltages are loaded on corresponding pixels of the display panel  21  by data lines to display an image. 
     In the embodiment, the display panel  21  is a color filter on array (COA) liquid crystal display panel. The technique of a COA substrate included in a COA liquid crystal display panel is a technique integrating color filter substrate on an array substrate. Compared with a conventional technique matching a color filter (CF) and a thin film transistor (TFT), the COA technique provides a proposal that can reduce difficulty in manufacturing a display panel. Specifically, in a conventional technique, a wider black matrix (BM) is applied for insulating light to eliminate errors, but in a COA substrate, the black matrix can be designed to be narrow, the aperture ratio increases correspondingly. Moreover, the COA substrate extends distance between a pixel electrode and a metal wire by a color block layer and reduces the effect of coupling capacitance, the effect of signal delay of the metal wire can be reduce to improve quality of a panel. 
     As shown in  FIG. 3  and  FIG. 4 , the display panel  21  includes a pixel unit array, several couples of scanning lines (G 1 , G 2 ) and several data lines (D 1 , D 2 ). The pixel unit array includes several couples of pixel units (A, B), scanning lines (G 1 , G 2 ) and data lines (D 1 , D 2 ) disposed vertically, a couple of pixel units (A, B) is disposed in a pixel region (e.g. a first pixel region  201  or a second pixel region  202 ) formed between the scanning lines (G 1 , G 2 ) and the data lines (D 1 , D 2 ). Each of the couples of scanning lines (G 1 , G 2 ) is disposed between at least one couple of pixel units (A, B) and connected with the at least one couple of pixel units (A, B). The adjacent data lines (D 1 , D 2 ) are disposed between at least one couple of pixel units (A, B) and connected with the at least one couple of pixel units (A, B). 
     In the embodiment, each couple of the scanning lines (G 1 , G 2 ) are disposed in sequence, each couple of the scanning lines (G 1 , G 2 ) include a first scanning line G 1  and a second scanning line G 2 , at least one couple of pixel units (A, B) are disposed between the first scanning line G 1  and the second scanning line G 2 . Each couple of pixel units (A, B) include a first pixel unit A and a second pixel unit B, the first pixel unit A and the second pixel unit Bare disposed adjacently. One of the first scanning line G 1  and the second scanning line G 2  is connected with one of the each couple of the pixel units (A, B), the other one of the first scanning line G 1  and the second scanning line G 2  is connected with the other one of each couple of pixel units (A, B). 
     Specifically, in the first pixel region  201 , the first scanning line G 1  and the first pixel unit A in the first pixel region  201  are connected, the second scanning line G 2  and the second pixel unit B in the first pixel region  201  are connected. And in the second pixel region  202 , the first scanning line G 1  and the second pixel unit B in the second pixel region  202  are connected, the second scanning line G 2  and the first pixel unit A in the second pixel region  202  are connected. In a third pixel region  203 , the first scanning line G 1  and the first pixel unit A in the third pixel region  203  are connected, the second scanning line G 2  and the second pixel unit B in the third pixel region  203  are connected. And in a fourth pixel region  204 , the first scanning line G 1  and the second pixel unit B in the fourth pixel region  204  are connected, the second scanning line G 2  and the first pixel unit A in the fourth pixel region  204  are connected. Each couple of scanning lines of the disclosure provide driving voltages to at least one couple of pixel units, such as in the first pixel region  201 , the first scanning line G 1  and the second scanning line G 2  provide driving voltages to the first pixel unit A and the second pixel unit B in the first pixel region  201 ; in the second pixel region  202 , the other couple of scanning lines such as the first scanning line G 1  and the second scanning line G 2  provide driving voltages to the first pixel unit A and the second pixel unit B in the second pixel region  202 . 
     In the disclosure, in order to improve the aperture ratio, a ITO (conductive glass) film layer disposed on a base substrate in each pixel unit is stretched, such as stretching marginal area of the ITO film layer, resulting in the whole area of the ITO film layer is larger than the area of the base substrate, by which more space will be on the ITO film layer, increasing aperture ratio of pixel units. 
     The data lines (D 1 , D 2 ) include a first data line D 1  and a second data line G 2 . In the embodiment, the first data line D 1  and the second data line D 2  are disposed in sequence, at least one couple of pixel units (A, B) are disposed between the first data line D 1  and the second data line D 2 . One of the first data line D 1  and the second data line D 2  is connected with one of the each couple of the pixel units (A, B), the other one of the first data line D 1  and the second data line D 2  is connected with the other one of each couple of pixel units (A, B). 
     Specifically, in the first pixel region  201 , the first data line D 1  and the second pixel unit B in the first pixel region  201  are connected, the second data line D 2  and the first pixel unit A in the first pixel region  201  are connected. In the second pixel region  202 , the second data line D 2  and the first pixel unit A in the second pixel region  202  are connected, the first data line D 1  and the second pixel unit B in the second pixel region  202  are connected. In the third pixel region  203 , the first data line D 1  and the second pixel unit B in the third pixel region  203  are connected, the second data line D 2  and the first pixel unit A in the third pixel region  203  are connected. In the fourth pixel region  204 , the second data line D 2  and the first pixel unit A in the fourth pixel region  204  are connected, the first data line D 1  and the second pixel unit B in the fourth pixel region  204  are connected. 
     Each data line of the disclosure provides data voltages to at least two pixel units respectively, specifically, each data line provides the data voltages to two adjacent pixel regions respectively, such as the second data line D 2  provides the data voltage to the first pixel unit A in the first pixel region  201 , the second data line D 2  provides the data voltage to first pixel unit A in the second pixel region  202  as well. 
     In the embodiment, polarities of a data voltage transmitted by the first data line D 1  and that by the second data line D 2  are opposite. If a data voltage transmitted by the first data line D 1  is positive, a data voltage transmitted by the second data line D 2  is negative. To be clear, the data voltage transmitted by the first data line D 1  being positive and the data voltage transmitted by the second data line D 2  being negative are not regarded as limitations. In other embodiments, the data voltage transmitted by the first data line D 1  can be positive, the data voltage transmitted by the second data line D 2  can be negative 
     Furthermore, the polarity of the first pixel unit A and that of the second pixel unit B are opposite, if the first pixel unit A works as soon as the data voltage received is negative, the second pixel unit B will work as soon as the data voltage received is positive. Similarly, in other embodiments, the first pixel unit A can be designed to work as soon as the data voltage received is positive and the second pixel unit B can be designed to work as soon as the data voltage received is negative according to practical design. 
     Polarity of each pixel unit is opposite to that of adjacent pixel units, no matter in the same pixel region or adjacent pixel regions, polarities of a pixel unit and adjacent pixel units are opposite, which can reverse polarities between adjacent pixel units, such as polarities of the second pixel unit B in the first pixel region  201  and the first pixel unit A in the second pixel region  202  are opposite; polarities of the second pixel unit B in the first pixel region  201  and the first pixel unit A in the third pixel region  203  are opposite. Preferably, the couples of pixel units (A, B) include at least four couples of the pixel units (A, B), the couples of scanning lines (G 1 , G 2 ) include at least two couples of the scanning lines (G 1 , G 2 ), at least two couples of pixel units (A, B) are disposed between each of the couples of the scanning lines (G 1 , G 2 ). The plurality of data lines (D 1 , D 2 ) include at least three data lines (D 1 , D 2 ), the at least two couples of pixel units (A, B) are disposed between the adjacent data lines (D 1 , D 2 ). 
     In the disclosure, four second pixel units B are disposed surrounding the first pixel unit A, four first pixel units A are disposed surrounding the second pixel unit B. Polarities of each pixel unit (A, B) and adjacent pixel units (A, B) are opposite, a pixel cyclic unit is formed by eight pixel units (A, B) in the disclosure, such as a pixel cyclic unit is formed by pixel units in the first pixel region  201 , the second pixel region  202 , the third pixel region  203  and the fourth region  204 , compared with a conventional HSD structure, the disclosure improves the amount of pixel units in the pixel cyclic unit, which can reverse polarities between adjacent pixel units and improve image quality of the display panel. 
     Overall, the display panel based on a HSD structure of the disclosure includes: a pixel unit array with several couples of pixel units; several couples of scanning lines, each of the couples of scanning lines is disposed between at least one couple of pixel units and connected with the at least one couple of pixel unit; a plurality of data lines, the adjacent data lines are disposed between at least one couple of pixel units and connected with the at least one couple of pixel units; a polarity of each of the pixel units is opposite to that of the adjacent pixel units. By the method above, each pixel unit in a display panel of the disclosure is surrounded by pixel units with opposite polarity, which can achieve point reversal between pixel units and improve image quality of a display panel significantly. 
     Above are embodiments of the present disclosure, which does not limit the scope of the present disclosure. Any modifications, equivalent replacements or improvements within the spirit and principles of the embodiment described above should be covered by the protected scope of the disclosure.