CN107967886A - Display panel to be detected and its detection method, display panel and motherboard, display device - Google Patents
Display panel to be detected and its detection method, display panel and motherboard, display device Download PDFInfo
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Abstract
The embodiment of the present invention provides a kind of display panel to be detected and its detection method, display panel and motherboard, display device, it is related to display technology field, for solving the problem of existing panel feature test method of use is to that when applying the display panel of SPR technique to be detected, can not point out pure color picture.Display panel to be detected includes the array of sub-pixels that multirow sub-pixel and multiple row sub-pixel are formed, and often row sub-pixel is driven by identical grid line, and each column sub-pixel is driven by identical data cable.All row sub-pixels that distribution of color is identical in multirow sub-pixel form a row pixel groups, and multirow sub-pixel forms at least two row pixel groups；At least two are electrically connected by connecting line in each bar grid line for driving each row pixel groups；All row sub-pixels that distribution of color is identical in multiple row sub-pixel form a row pixel groups, and multiple row sub-pixel forms at least two row pixel groups；At least two are electrically connected by connecting line in pieces of data line for driving each row pixel groups.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel to be detected, a detection method thereof, a display panel, a mother board and a display device.
Background
In the manufacture of a display panel, before a driver chip and a flexible circuit board for inputting display signals are attached, a panel function Test (Cell Test, CT) is usually performed to detect defects occurring in the manufacturing process of the display panel. In the testing process, a detection signal is input into the display panel to drive the sub-pixels of one color to display so that the display panel displays a pure color picture, and whether the signal lines of the display panel are broken or short-circuited or whether the defects such as light leakage and the like occur among the sub-pixels is judged through the display picture.
The pixel arrangement of the conventional display panel is as shown in fig. 1, each pixel 10 includes three sub-pixels, wherein the color distribution of each row of sub-pixels is the same, and the color of each sub-pixel in each column of sub-pixels is the same. In the panel function test, all the row Gate lines are electrically connected together and connected with the row driving signal input terminal Gate, and the data lines of the sub-pixels of each column of the same color are electrically connected together and respectively connected with the data signal input terminal Date _ R, Date _ G, Date _ B. The panel function test process specifically comprises the steps of inputting detection signals to a row driving signal input end Gate and a data signal input end Date _ R and clicking a red picture; inputting detection signals to a row driving signal input end Gate and a data signal input end Date _ G to point out a green picture; the detection signal is input to the row driving signal input terminal Gate and the data signal input terminal Date _ B, and a blue picture is displayed. Therefore, whether the signal lines of the display panel are disconnected or not and whether the display panel has defects of light leakage among pixels or not are verified under a pure color picture.
In recent years, the SPR (Sub Pixel Rendering) technology has been widely used in the field of image display because of the advantages of improving the PPI (Pixel Per Inch, chinese) number of Pixels, reducing the IC (Integrated Circuit) channel number, and reducing the power consumption of the product. The combination of sub-pixels included in each pixel is different depending on the panel design of each manufacturer. In general, a pixel of a display panel to which the SPR technique is applied will not have all of the primary colors of the panel. As shown in fig. 2 or fig. 3, a pixel 10 will have two sub-pixels with a color combination of red + green, blue + red, or green + blue.
Fig. 2 and 3 are schematic diagrams of two pixel arrangements of a display panel using SPR technology. When the panel function test method is used for testing, for the pixel arrangement mode shown in fig. 2, the connection mode of each grid line and each data line is shown in fig. 2, and when detection signals are input to the row driving signal input end Gate and the data signal input end Date _ R & B, a pure red picture and a pure blue picture cannot be displayed; in the pixel arrangement shown in fig. 3, when a row driving signal is input to the row driving signal input terminal Gate, and a detection signal is input to any one of the data signal input terminals Date _1, Date _2, and Date _3, a pure color picture cannot be displayed.
In summary, for the display panel applying the SPR technology, the conventional panel function testing method cannot be used to dot a pure color image, so that it is impossible to verify whether the signal lines of the sub-pixels of the display panel are open or not and whether light leakage occurs between the sub-pixels.
Disclosure of Invention
The embodiment of the invention provides a display panel to be detected, a detection method thereof, the display panel, a mother board and a display device, and aims to solve the problem that a pure color picture cannot be clicked when the display panel applying an SPR technology is detected by adopting the conventional panel function test method.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect of the embodiments of the present invention, a display panel to be detected is provided, including: the array comprises a sub-pixel array formed by a plurality of rows of sub-pixels and a plurality of columns of sub-pixels, wherein each row of sub-pixels is driven by the same grid line, and each column of sub-pixels is driven by the same data line; all the sub-pixels with the same color distribution in the plurality of rows of sub-pixels form a row pixel group, and the plurality of rows of sub-pixels form at least two row pixel groups; at least two of the grid lines for driving each row pixel group are electrically connected through a connecting line; all the column sub-pixels with the same color distribution in the multiple columns of sub-pixels form a column pixel group, and the multiple columns of sub-pixels form at least two column pixel groups; at least two of the data lines for driving each of the column pixel groups are electrically connected through a connection line.
Optionally, each gate line for driving each row of pixel groups is electrically connected through a connection line; and the data lines for driving each column pixel group are electrically connected through a connecting line.
Optionally, the display panel to be detected includes a plurality of pixels, each of the pixels has two sub-pixels with different colors, and two adjacent pixels have two sub-pixels with a first color, one sub-pixel with a second color, and one sub-pixel with a third color.
Optionally, at least one row of the sub-pixels is the sub-pixel of the first color; or, at least one column of the sub-pixels is the sub-pixel of the first color.
Optionally, each row of sub-pixels and each column of sub-pixels includes a sub-pixel of the first color, a sub-pixel of the second color, and a sub-pixel of the third color.
In a second aspect of the embodiments of the present invention, there is provided a method for detecting a display panel to be detected according to the first embodiment, in which all sub-pixels of one color in the display panel to be detected are driven to display, including the following steps: inputting row driving signals to the grid lines corresponding to each row pixel group in sequence, and inputting data signals to the data lines corresponding to the column pixel groups to which the sub-pixels of the colors belong in the row pixel groups so as to light the sub-pixels of the colors in each row pixel group in sequence; or, if all the sub-pixels of the color belong to the same column pixel group, inputting a row driving signal to all the gate lines, and inputting a data signal to the data line corresponding to the column pixel group to which the sub-pixels of the color belong, so as to light up all the sub-pixels of the color; and if all the sub-pixels of the colors are distributed in different column pixel groups, inputting a row driving signal to a grid line corresponding to each row pixel group in sequence, and inputting a data signal to a data line corresponding to the column pixel group to which the sub-pixels of the colors belong in the row pixel group to sequentially lighten the sub-pixels of the colors in each row pixel group.
In a third aspect of the embodiments of the present invention, a display panel is provided, where the display panel is formed by disconnecting a connection line in a display panel to be detected as shown in the first embodiment.
Optionally, the display panel is an OLED display panel.
In a fourth aspect of the embodiments of the present invention, a display device is provided, which includes the display panel according to the third embodiment.
In a fifth aspect of the embodiments of the present invention, a display panel motherboard is provided, where the display panel motherboard includes a plurality of panel units, and after the display panel motherboard is cut, each panel unit can form a display panel to be detected according to the first embodiment.
The embodiment of the invention provides a display panel to be detected, a detection method thereof, the display panel, a mother board and a display device. All the sub-pixels in the rows with the same color distribution form a row pixel group, and the sub-pixels in the rows form at least two row pixel groups; at least two of the gate lines for driving each row pixel group are electrically connected through a connection line. All the column sub-pixels with the same color distribution in the multi-column sub-pixels form a column pixel group, and the multi-column sub-pixels form at least two column pixel groups; at least two of the respective data lines for driving each column pixel group are electrically connected through a connection line.
Thus, the panel function test is carried out on the display panel to be detected, when all the sub-pixels of one color are driven to display, a row driving signal is input to each grid line corresponding to one row pixel group, and a data signal is input to a data line corresponding to a column pixel group to which the sub-pixels of the color belong in the row pixel group, so as to light the sub-pixels of the color in the row pixel group; and repeating the steps to sequentially light the sub-pixels of the color in each row pixel group, so as to drive all the sub-pixels of the color in the display panel to display. Therefore, when the panel function test is performed on the display panel to be detected provided by the embodiment of the invention, a pure color picture can be clicked, so that whether the signal lines of the sub-pixels of the display panel are disconnected or not and whether the defects such as light leakage and the like occur among the sub-pixels or not can be verified under the pure color picture.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a conventional display panel to be detected;
FIG. 2 is a schematic diagram of a display panel using SPR technique;
FIG. 3 is a schematic diagram of another display panel using SPR technique;
fig. 4 is a schematic diagram of a display panel to be tested according to an embodiment of the present invention;
fig. 5 is a schematic diagram of another display panel to be tested according to an embodiment of the present invention;
fig. 6 is a schematic diagram of another electrical connection relationship between gate lines corresponding to a first row of pixel groups of the display panel to be tested shown in fig. 4;
fig. 7 is a schematic diagram of a display panel formed by disconnecting a connection line of the display panel to be tested shown in fig. 4 according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a display panel formed by disconnecting a connection line of the display panel to be tested shown in fig. 5 according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a display motherboard according to an embodiment of the present invention.
Reference numerals:
10. 10', 10 "-pixels; 21-first row pixel group; 22-a second row of pixel groups; 23-third row pixel group; 31- -first column group of pixels; 32-a second column group of pixels; 33-third column pixel group.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In general, in the Cell process, a panel function test is performed to remove defective products before a driving chip is attached, so as to improve the yield of the display panel. The display panel before the driver chip is attached is generally referred to as a display panel to be tested.
In a display panel applying the SPR technique, each pixel has two sub-pixels of two colors, and four sub-pixels corresponding to two adjacent pixels can cover three colors provided by the display panel, for example, as shown in fig. 2 and 3, the pixel 10 has a red (R) sub-pixel and a green (G) sub-pixel, the pixel 10' has a blue (B) sub-pixel and a green (G) sub-pixel, and the sub-pixel 10 ″ has a green (G) sub-pixel and a blue (B) sub-pixel. Furthermore, the same color sub-pixels are not adjacent. Because the colors of the sub-pixels in each row of sub-pixels are not completely the same, when the display panel applying the SPR technology is detected by using the existing panel function test method, a pure color picture cannot be clicked, so that whether the signal lines of the sub-pixels of the display panel are disconnected or not and whether light leakage or other defects occur among the sub-pixels or not cannot be verified.
In order to solve the above problem, embodiments of the present invention provide the following embodiments, so that a pure color picture can be dotted when a panel function test is performed on a display panel to which the SPR technique is applied.
Example one
An embodiment of the present invention provides a display panel to be tested, as shown in fig. 4 and 5, the display panel to be tested includes a sub-pixel array formed by a plurality of rows of sub-pixels and a plurality of columns of sub-pixels, each row of sub-pixels is driven by the same gate line, and each column of sub-pixels is driven by the same data line.
All the sub-pixels in the rows with the same color distribution form a row pixel group, and the sub-pixels in the rows form at least two row pixel groups; at least two of the gate lines for driving each row pixel group are electrically connected through a connection line.
All the column sub-pixels with the same color distribution in the multi-column sub-pixels form a column pixel group, and the multi-column sub-pixels form at least two column pixel groups; at least two of the respective data lines for driving each column pixel group are electrically connected through a connection line.
First, if the colors of the sub-pixels in the same order in the column direction in the sub-pixels in different rows are the same, the color distribution of the sub-pixels in the row is considered to be the same, and all the sub-pixels in the row with the same color distribution form a row pixel group; if the sub-pixels in different rows have the same order in the column direction but different colors, the color distribution of the sub-pixels in the row is considered to be different. The principle of the above-mentioned column pixel group is the same as that of the row pixel group, and the description thereof is omitted.
Second, at least two of the gate lines for driving each row of pixel groups are electrically connected through a connection line, where the gate lines may be directly electrically connected through the connection line or indirectly electrically connected through the connection line, which is not limited in this embodiment. For example, one end of a connection line (e.g., a signal transmission line) may be connected to each gate line that needs to be electrically connected together, and the other end is connected to a row driving signal input terminal; as another example, a switch tube may be formed on a connection line (e.g., a signal transmission line), an input end of the switch tube is connected to the row driving signal input end through the connection line, and an output end of the switch tube is connected to each of the gate lines to be electrically connected together through the connection line. The principle of the electrical connection of the data lines in the column pixel group is the same as that of the electrical connection of the gate lines in the row pixels, and the details are not repeated here.
Thirdly, as will be clear to those skilled in the art in view of the above description, the color distribution of at least two rows of sub-pixels in a plurality of rows of sub-pixels and the color distribution of at least two columns of sub-pixels in a plurality of columns of sub-pixels of the display panel to be detected are different.
Based on this, the display panel to be detected provided by the embodiment of the invention comprises a sub-pixel array formed by a plurality of rows of sub-pixels and a plurality of columns of sub-pixels, wherein each row of sub-pixels is driven by the same grid line, each column of sub-pixels is driven by the same data line, all rows of sub-pixels with the same color distribution in the plurality of rows of sub-pixels form a row pixel group, and the plurality of rows of sub-pixels form at least two row pixel groups; at least two of the grid lines for driving each row pixel group are electrically connected through a connecting line; all the column sub-pixels with the same color distribution in the multi-column sub-pixels form a column pixel group, and the multi-column sub-pixels form at least two column pixel groups; at least two of the respective data lines for driving each column pixel group are electrically connected through a connection line.
In this way, when the display panel is subjected to a panel function test, and all the sub-pixels of one color are driven to display, a row driving signal is input to each gate line corresponding to one row pixel group, and a data signal is input to a data line corresponding to a column pixel group to which the sub-pixel of the color belongs in the row pixel group, so as to light up the sub-pixel of the color in the row pixel group; and repeating the steps to sequentially light the sub-pixels of the color in each row pixel group, so as to drive all the sub-pixels of the color in the display panel to display. Therefore, when the panel function test is performed on the display panel to be detected provided by the embodiment of the invention, a pure color picture can be clicked, so that whether the signal lines of the sub-pixels of the display panel are disconnected or not and whether the defects such as light leakage and the like occur among the sub-pixels or not can be verified under the pure color picture.
On the basis, the electrically connected grid lines are connected with the same row driving signal input end, each grid line for driving one row pixel group can be divided into a plurality of groups, and each group of grid lines are electrically connected through a connecting line. For example, as shown in fig. 6, the Gate lines corresponding to the first row pixel group 21 are divided into two groups, and each group of Gate lines is connected to the row driving signal input terminal Gate _11 and the row driving signal input terminal Gate _ 12. In this case, when driving the sub-pixels of one color in the display panel to be tested to display, a row scanning signal may be simultaneously input to the row driving signal input terminal Gate _11 and the row driving signal input terminal Gate _12 to input a row driving signal to each Gate line of the first row pixel group 21, and a data signal may be input to the data line corresponding to the column pixel group to which the sub-pixel of the color in the row pixel group belongs to light the sub-pixel of the color in the row pixel group.
In this case, the number of row driving signal input ends connected to the gate line corresponding to the same row of pixel group is large, so that the area of the non-display area of the display panel to be detected occupied by each row of driving signal input ends is large, and the narrow frame development of the display panel is not facilitated. Preferably, as shown in fig. 4 and 5, the gate lines for driving each row pixel group are electrically connected through a connection line; it is also preferable that the respective data lines for driving each column pixel group are electrically connected through a connection line.
In addition, the present embodiment does not limit the kind of color of the display panel to be detected. For example, the display panel to be detected may be composed of a red (R) sub-pixel, a green (G) sub-pixel, and a blue (B) sub-pixel; as another example, the display panel to be inspected may be composed of a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel. In this embodiment, the display panel to be tested of RGB sub-pixels is taken as an example for explanation.
The display panel to be detected provided in this embodiment may be a display panel to be detected to which the SPR technique is applied. Specifically, for example, as shown in fig. 4 and 5, the display panel to be tested includes a plurality of pixels 10, each pixel 10 has two sub-pixels with different colors, and two adjacent pixels 10 specifically include two sub-pixels with a first color, one sub-pixel with a second color, and one sub-pixel with a third color. In this embodiment, the first color is green (G), the second color is red (R), and the third color is blue (B) for example.
Fig. 4 and 5 are schematic structural diagrams of two display panels to be detected applying the SPR technique provided in this embodiment, and the structures of the display panels to be detected shown in fig. 4 and 5 are specifically described below.
As shown in fig. 4, at least one row of sub-pixels is a sub-pixel of the first color, or at least one column of sub-pixels is a sub-pixel of the first color. For example, as shown in fig. 4, the six columns of sub-pixels of the display panel to be detected are all green sub-pixels.
In this case, taking at least one column of sub-pixels of the display panel to be detected as green sub-pixels as an example, as shown in fig. 4, the sub-pixels in the H1 th row, the H3 th row and the H5 th row have the same color distribution, and form the first row pixel group 21; similarly, the sub-pixels in the H2 th row, the H4 th row and the H6 th row form a second row pixel group 22; the sub-pixels of the L1 th column, the L5 th column and the L9 th column form a first column pixel group 31; the sub-pixels of the L3 th column, the L7 th column and the L11 th column form a second column pixel group 32; the L2 th, L4 th, L6 th, L8 th, L10 th and L12 th sub-pixels form a third column pixel group 33. Optionally, each gate line for driving each row of pixel group is electrically connected through a connection line; the data lines for driving each column pixel group pass through the connection lines.
As shown in fig. 5, each row of sub-pixels and each column of sub-pixels includes a sub-pixel of a first color, a sub-pixel of a second color, and a sub-pixel of a third color.
In this case, as shown in fig. 5, the color distributions of the sub-pixels of the H1 th row and the H4 th row are the same, which constitute the first row pixel group 21; similarly, the sub-pixels in the H2 th row and the H5 th row form the second row pixel group 22; the H3 th and H6 th rows of sub-pixels form a third row of pixel groups 23; the sub-pixels of the L1 th column, the L4 th column, the L7 th column and the L10 th column form a first column pixel group 31; the sub-pixels of the L2 th column, the L5 th column, the L8 th column and the L11 th column form a second column pixel group 32; the L3 th, L6 th, L9 th and L12 th sub-pixels form a second column pixel group 33. Optionally, each gate line for driving each row of pixel group is electrically connected through a connection line; the data lines for driving each column pixel group pass through the connection lines.
Example two
The present embodiment provides a method for detecting a display panel to be detected, which can drive all sub-pixels of one color in the display panel to be detected to display, including the following steps:
and inputting row driving signals to the grid lines corresponding to each row pixel group in sequence, and inputting data signals to the data lines corresponding to the column pixel groups to which the sub-pixels of the colors belong in the row pixel groups so as to sequentially lighten the sub-pixels of the colors in each row pixel group.
It should be noted that the gate lines corresponding to one row pixel group refer to all the gate lines for driving the row pixel group. The method comprises the steps of inputting row driving signals to grid lines of each row pixel group respectively, receiving the row driving signals by the grid lines of each row pixel group at the same time, and inputting data signals to data lines corresponding to column pixel groups to which sub-pixels of the color belong in the row pixel group while inputting the row driving signals to each row pixel group.
In this way, when all the sub-pixels of one color of the display panel to be tested are driven to display, the row driving signal is sequentially input to each gate line corresponding to one row pixel group of the sub-pixels of the color, and the data signal is input to the data line corresponding to the column pixel group to which the sub-pixels of the color belong in the row pixel group, so as to sequentially light up the sub-pixels of the color in each row pixel group, thereby driving all the sub-pixels of the color in the display panel to display. Therefore, when the detection method provided by the embodiment is used for performing the panel function test on the display panel to be detected, a pure color picture can be clicked, so that whether the signal lines of the sub-pixels of the display panel are disconnected or not and whether the defects such as light leakage and the like occur among the sub-pixels or not can be verified under the pure color picture.
In this case, for the display panel to be inspected shown in fig. 4, the red sub-pixels in the first row pixel group 21 belong to the first column pixel group 31, and the red sub-pixels in the second row pixel group 22 belong to the second column pixel group 32. In this case, a row driving signal is input to each gate line corresponding to the first row pixel group 21, and a data signal is input to each data line corresponding to the first column pixel group 31, so that the red sub-pixels in the first row pixel group 21 are lit, and the display panel to be tested displays a first red picture. A row driving signal is input to each gate line corresponding to the second row pixel group 22, and a data signal is input to each data line corresponding to the second column pixel group 32, so that the red sub-pixels in the second row pixel group 22 are lit, and the display panel to be tested displays a second red image. In this way, all red sub-pixels in the display panel to be detected can be driven to display.
For the display panel to be inspected shown in fig. 4, the green sub-pixels in the first row pixel group 21 and the second row pixel group 22 both belong to the third column pixel group 33. In this case, a row driving signal is input to the gate line corresponding to the first row pixel group 21, and a data signal is input to the data line corresponding to the third column pixel group 33, so as to light the green sub-pixels in the first row pixel group 21, and the display panel to be tested displays the first green picture. A row driving signal is input to the gate line corresponding to the second row pixel group 22, and a data signal is input to the data line corresponding to the third column pixel group 33, so as to light the green sub-pixels in the second row pixel group 22, and the display panel to be detected displays a second green picture. In this way, all the green sub-pixels in the display panel to be detected can be driven to display.
For the display panel to be tested shown in fig. 4, the sub-pixels of blue color in the first row pixel group 21 belong to the second column pixel group 32, and the sub-pixels of blue color in the second row pixel group 22 belong to the first column pixel group 31. In this case, a row driving signal is input to the gate line corresponding to the first row pixel group 21, and a data signal is input to each data line corresponding to the second column pixel group 32, so that the blue sub-pixels in the first row pixel group 21 are lit, and the display panel to be tested displays a first blue picture. A row driving signal is input to the gate line corresponding to the second row pixel group 22, and a data signal is input to the first column pixel group 31, so as to light up the blue sub-pixels in the second row pixel group 22, and the display panel to be detected displays a second blue picture. In this way, all the blue sub-pixels in the display panel to be detected can be driven to display.
It should be noted that, for the display panel to be tested shown in fig. 4, a row driving signal may be input to the row driving signal input terminal Gate _1, so as to input a row driving signal to each Gate line corresponding to the first row pixel group 21; a row driving signal is input to the row driving signal input terminal Gate _2 to input a row driving signal to each Gate line corresponding to the second row pixel group 22. Inputting a Data signal to a Data signal input terminal Data _1 to input the Data signal to each Data line corresponding to the first column of pixel group 31; inputting a Data signal to a Data signal input terminal Data _2 to input the Data signal to each Data line corresponding to the second column of pixel groups 32; a Data signal is input to the Data signal input terminal Data _3 to input the Data signal to each Data line corresponding to the third column pixel group 33.
On the basis, for the display panel to be tested shown in fig. 5, the red sub-pixel in the first row pixel group 21 belongs to the first column pixel group 31, the red sub-pixel in the second row pixel group 22 belongs to the second column pixel group 32, and the red sub-pixel in the third row pixel group 23 belongs to the third column pixel group 33. In this case, a row driving signal is input to the gate line corresponding to the first row pixel group 21, and a data signal is input to the data line corresponding to the first column pixel group 31, so as to light the red sub-pixels in the first row pixel group 21, and the display panel to be tested displays a first red picture. A row driving signal is input to the gate line corresponding to the second row pixel group 22, and a data signal is input to the data line corresponding to the column pixel group 32, so that the red sub-pixels in the row pixel group 22 are lit, and the display panel to be tested displays a second red picture. A row driving signal is input to the gate line corresponding to the row pixel group 23, and a data signal is input to the data line corresponding to the column pixel group 33, so that the red sub-pixels in the row pixel group 23 are lit, and the display panel to be tested displays a third red picture. In this way, all red sub-pixels in the display panel to be detected can be driven to display.
For the display panel to be tested shown in fig. 5, the green sub-pixels in the first row pixel group 21 belong to the second column pixel group 32, the green sub-pixels in the second row pixel group 22 belong to the third column pixel group 33, and the green sub-pixels in the third row pixel group 23 belong to the first column pixel group 31. In this case, a row driving signal is input to the gate line corresponding to the first row pixel group 21, and a data signal is input to the data line corresponding to the second column pixel group 32, so as to light the green sub-pixels in the first row pixel group 21, and the display panel to be tested displays a first green picture. A row driving signal is input to the gate line corresponding to the second row pixel group 22, and a data signal is input to the data line corresponding to the third column pixel group 33, so as to light the green sub-pixels in the second row pixel group 22, and the display panel to be detected displays a second green picture. A row driving signal is input to the gate line corresponding to the third row of pixel group 23, and a data signal is input to the data line corresponding to the first column of pixel group 31, so as to light the green sub-pixels in the first row of pixel group 31, and the display panel to be detected displays a third green picture. In this way, all the green sub-pixels in the display panel to be detected can be driven to display.
For the display panel to be tested shown in fig. 5, the sub-pixel of blue color in the first row pixel group 21 belongs to the third column pixel group 33, the sub-pixel of blue color in the second row pixel group 22 belongs to the first column pixel group 31, and the sub-pixel of blue color in the third row pixel group 23 belongs to the second column pixel group 32. In this case, a row driving signal is input to the gate line corresponding to the first row pixel group 21, and a data signal is input to the data line corresponding to the third column pixel group 33, so as to light up the blue sub-pixels in the first row pixel group 21, and the display panel to be tested displays the first blue picture. A row driving signal is input to the gate line corresponding to the second row pixel group 22, and a data signal is input to the data line corresponding to the first column pixel group 31, so as to light the blue sub-pixels in the second row pixel group 22, and the display panel to be detected displays a second blue picture. A row driving signal is input to the gate line corresponding to the third row pixel group 23, and a data signal is input to the data line corresponding to the second column pixel group 32, so as to light the blue sub-pixels in the first row pixel group 31, and the display panel to be detected displays a third blue picture. In this way, all the blue sub-pixels in the display panel to be detected can be driven to display.
It should be noted that, for the display panel to be detected shown in fig. 5, the manner of inputting the row scanning signal to each gate line corresponding to each row pixel group and inputting the data signal to each data line corresponding to each column pixel group is the same, and details are not repeated here.
Based on this, for the display panel to be detected shown in fig. 4 and fig. 5, the detection method provided in this embodiment can light all the sub-pixels of one color in each row pixel group, so as to drive all the sub-pixels of one color in the display panel to be detected to display, and further to point out a pure color picture, so as to verify whether the signal lines of the sub-pixels of the display panel are disconnected or not and whether the defects such as light leakage occur between the sub-pixels or not under the pure color picture.
EXAMPLE III
In this embodiment, when all the sub-pixels of one color in the display panel to be detected are driven to display, if all the sub-pixels of the color are distributed in different row pixel groups, the method for detecting the display panel to be detected is the same as that in the embodiment, and details are not repeated here.
Different from the second embodiment, if all the sub-pixels of the color belong to the same column pixel group, the row driving signal is input to all the gate lines, and the data signal is input to the data line corresponding to the column pixel group to which the sub-pixel of the color belongs, so as to light up all the sub-pixels of the color.
For example, the display panel to be tested shown in fig. 4 is taken as an example, wherein all green sub-pixels belong to the third pixel group 33. In this case, unlike the first embodiment, the row driving signals may be simultaneously input to the first row pixel group 21 and the second row pixel group 22, and the data signals may be input to the data lines corresponding to the third column pixel group 33, so as to light all the green sub-pixels.
On this basis, if all the sub-pixels of one color (for example, green) belong to the same column pixel group, compared with the detection method provided in the second embodiment, the detection method of the present embodiment only needs one lighting process when the sub-pixel of green is lighted, so that the time for lighting the sub-pixel of the color can be reduced, the time for testing the panel function can be reduced, and the improvement of the productivity of the display panel is facilitated.
Example four
Embodiments of the present invention provide a display panel as shown in fig. 7 and 8, which is formed by breaking the connection lines in any one of the display panels to be tested according to the first embodiment.
For example, the display panel shown in fig. 7 is formed by breaking the connection lines in the display panel to be detected shown in fig. 4; the display panel shown in fig. 8 is formed by breaking the connection lines in the display panel to be tested shown in fig. 5.
The present embodiment does not limit the specific manner of disconnecting the connection line. After the display panel is qualified through the detection in the first embodiment, for example, the connection line may be disconnected through laser etching; for another example, after the display panel described in the first embodiment passes the detection, the switch tube on the connection line may be turned off.
Based on this, after the lighting test is performed on the display panel to be detected according to the first embodiment of the present invention and the detection is qualified, the connection lines in the display panel to be detected are disconnected, so that the electrical connection relationship between each gate line of each row of pixel groups is disconnected, and the electrical connection relationship between each data line of each column of pixel groups is disconnected, so that the row driving signals and the data signals can be normally input to the display panel to control the light emitting brightness of each pixel, so that the display panel of this embodiment can normally display.
Optionally, the display panel provided in this embodiment may be an OLED (Organic Light-Emitting Diode) display panel, and further optionally, the display panel may be an AMOLED (Active Matrix Driving OLED) display panel; of course, the display panel may also be a liquid crystal panel or other types of organic electroluminescent display panels, which is not limited in this embodiment.
On this basis, the display panel provided by the embodiment may further include a driving chip, and the driving chip may provide a scanning signal to each gate line and a data signal to each data line.
EXAMPLE five
Embodiments of the present invention provide a display device, which includes the display panel according to the fourth embodiment of the present invention, and has the same structure and beneficial effects as those of the display panel provided in the fourth embodiment. Since the foregoing embodiments have described the structure and advantageous effects of the display panel in detail, the description is omitted here.
It should be noted that the display device provided in this embodiment may be any product or component having a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, and a navigator.
EXAMPLE six
The embodiment of the present invention provides a display panel motherboard 01 as shown in fig. 9, which includes a plurality of panel units a, and after the display panel motherboard 01 is cut, each panel a can form a display panel to be detected as described in the first embodiment of the present invention.
Therefore, the detection method provided by the second embodiment or the third embodiment of the present invention can be used to detect the display panel to be detected obtained by cutting the display panel motherboard of the present embodiment, so that a pure color picture can be displayed during the panel function test, and thus, it can be verified whether the sub-pixel signal lines of the display panel are disconnected or not and whether the defects such as light leakage occurs between the sub-pixels or not under the pure color picture.
It should be noted that, for the specific process of the display panel to be detected in the first embodiment by using the detection method in the second embodiment or the third embodiment, reference may be made to the related description in the second embodiment and the third embodiment, and this embodiment is not described in detail here.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A display panel to be detected, characterized in that the display panel to be detected comprises: the array comprises a sub-pixel array formed by a plurality of rows of sub-pixels and a plurality of columns of sub-pixels, wherein each row of sub-pixels is driven by the same grid line, and each column of sub-pixels is driven by the same data line;
all the sub-pixels with the same color distribution in the plurality of rows of sub-pixels form a row pixel group, and the plurality of rows of sub-pixels form at least two row pixel groups; at least two of the grid lines for driving each row pixel group are electrically connected through a connecting line;
all the column sub-pixels with the same color distribution in the multiple columns of sub-pixels form a column pixel group, and the multiple columns of sub-pixels form at least two column pixel groups; at least two of the data lines for driving each of the column pixel groups are electrically connected through a connection line.
2. The display panel to be detected according to claim 1, wherein the gate lines for driving each row pixel group are electrically connected through a connection line; and the data lines for driving each column pixel group are electrically connected through a connecting line.
3. The display panel to be inspected according to claim 1 or 2, wherein the display panel to be inspected comprises a plurality of pixels, each of the pixels has two sub-pixels with different colors, and two adjacent pixels have two sub-pixels with a first color, one sub-pixel with a second color, and one sub-pixel with a third color.
4. The display panel to be detected according to claim 3, wherein at least one row of the sub-pixels is the sub-pixel of the first color;
or, at least one column of the sub-pixels is the sub-pixel of the first color.
5. Display panel to be detected according to claim 3,
each row of sub-pixels and each column of sub-pixels comprises sub-pixels of the first color, sub-pixels of the second color, and sub-pixels of the third color.
6. The method for inspecting display panel to be inspected according to any one of claims 1 to 5, wherein all sub-pixels of one color in the display panel to be inspected are driven to display, comprising the following steps:
inputting row driving signals to the grid lines corresponding to each row pixel group in sequence, and inputting data signals to the data lines corresponding to the column pixel groups to which the sub-pixels of the colors belong in the row pixel groups so as to light the sub-pixels of the colors in each row pixel group in sequence;
or,
if all the sub-pixels of the color belong to the same row pixel group, inputting a row driving signal to all the grid lines, and inputting a data signal to the data line corresponding to the row pixel group to which the sub-pixels of the color belong so as to lighten all the sub-pixels of the color;
and if all the sub-pixels of the colors are distributed in different column pixel groups, inputting a row driving signal to a grid line corresponding to each row pixel group in sequence, and inputting a data signal to a data line corresponding to the column pixel group to which the sub-pixels of the colors belong in the row pixel group to sequentially lighten the sub-pixels of the colors in each row pixel group.
7. A display panel, characterized in that the display panel is formed by breaking the connection lines in the display panel to be tested according to any one of claims 1 to 5.
8. The display panel according to claim 7, wherein the display panel is an OLED display panel.
9. A display device characterized by comprising the display panel according to claim 8 or 9.
10. A display panel mother board, comprising a plurality of panel units, wherein after the display panel mother board is cut, each panel unit can be formed into a display panel to be detected according to any one of claims 1 to 5.
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