Display panel and display device
By alternately connecting subpixels with different types of signal lines in the display panel, the horizontal stripe problem caused by the load difference of data signal lines in high-resolution, high-refresh-rate display products is solved, achieving better brightness uniformity and display effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUHAN TIANMA MICRO ELECTRONICS CO LTD
- Filing Date
- 2024-10-25
- Publication Date
- 2026-04-28
AI Technical Summary
In high-resolution, high-refresh-rate display products, horizontal stripes can appear on the display panel due to the load difference of the data signal lines located on opposite sides of a column of sub-pixels.
By alternately connecting subpixels in the same subpixel row to different types of signal lines, each subpixel is ensured to be connected to both the first type of signal line on one side and the second type of signal line on the other side, thus reducing the charging difference between different rows.
It effectively reduces the brightness difference between different rows, improves the horizontal stripe problem of the display panel, and enhances display quality and brightness uniformity.
Smart Images

Figure CN119207280B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of display technology, and in particular to a display panel and display device. Background Technology
[0002] In the field of display technology, high-resolution, high-refresh-rate display products have become a research focus. In high-resolution, high-refresh-rate display products, in order to improve the problem of uneven display caused by insufficient data signal writing time to sub-pixels, a data signal line is usually set on each side of each column of sub-pixels, and the two data signal lines are used to provide data signals to different sub-pixels in that column.
[0003] However, in existing technologies, the load on the two data signal lines located on opposite sides of a column of sub-pixels is usually different, which can easily lead to horizontal stripes on the display panel. Summary of the Invention
[0004] In view of this, embodiments of this application provide a display panel and a display device to solve the above problems.
[0005] In a first aspect, embodiments of this application provide a display panel including a plurality of sub-pixels and a plurality of first signal lines. The first signal lines extend along a first direction, and the plurality of first signal lines are arranged along a second direction, the first direction intersecting the second direction. The plurality of first signal lines include first-type signal lines and second-type signal lines. The plurality of sub-pixels arranged along the first direction form a sub-pixel column. In the same sub-pixel column, some sub-pixels are electrically connected to the first-type signal lines, and some sub-pixels are electrically connected to the second-type signal lines. The first-type signal lines and the second-type signal lines are located on opposite sides of the sub-pixel column to which they are electrically connected. The plurality of sub-pixels include first-color sub-pixels. The plurality of sub-pixels arranged along the second direction form a sub-pixel row. In the same sub-pixel row, some first-color sub-pixels are electrically connected to the first-type signal lines, and some first-color sub-pixels are electrically connected to the second-type signal lines.
[0006] In one implementation of the first aspect, the first color subpixel is a green subpixel.
[0007] In one implementation of the first aspect, in the same sub-pixel row, one of two adjacent first color sub-pixels is electrically connected to a first type of signal line, and the other is electrically connected to a second type of signal line.
[0008] In one implementation of the first aspect, the plurality of sub-pixels also includes a second color sub-pixel and a third color sub-pixel, and in the same sub-pixel row, both the second color sub-pixel and the third color sub-pixel are electrically connected to a first type of signal line or a second type of signal line.
[0009] In one implementation of the first aspect, in odd-numbered sub-pixel rows, both the second and third color sub-pixels are electrically connected to the first type of signal line; in even-numbered sub-pixel rows, both the second and third color sub-pixels are electrically connected to the second type of signal line.
[0010] In one implementation of the first aspect, the plurality of sub-pixels also includes a second color sub-pixel and a third color sub-pixel. In the same sub-pixel row, one of the second color sub-pixel and the third color sub-pixel is electrically connected to a first type of signal line, and the other is electrically connected to a second type of signal line.
[0011] In one implementation of the first aspect, the sub-pixel column includes a first type of sub-pixel column, a second type of sub-pixel column, and a third type of sub-pixel column. Both the first type of sub-pixel column and the second type of sub-pixel column include a second color sub-pixel and a third color sub-pixel. The third type of sub-pixel column includes a first color sub-pixel. The third type of sub-pixel column is located between the first type of sub-pixel column and the second type of sub-pixel column. The second color sub-pixel in the first type of sub-pixel column and the third color sub-pixel in the second type of sub-pixel column are located in the same sub-pixel row, and the third color sub-pixel in the first type of sub-pixel column and the second color sub-pixel in the second type of sub-pixel column are located in the same sub-pixel row.
[0012] In one implementation of the first aspect, in the first type of sub-pixel column and the second type of sub-pixel column, the second color sub-pixel is electrically connected to the first type of signal line, and the third color sub-pixel is electrically connected to the second type of signal line.
[0013] In one implementation of the first aspect, second-color subpixels and third-color subpixels are arranged alternately in the same first-class subpixel column and the same second-class subpixel column.
[0014] In one implementation of the first aspect, the plurality of sub-pixels also includes second color sub-pixels. In the same sub-pixel row, one of two adjacent second color sub-pixels is electrically connected to a first type of signal line, and the other is electrically connected to a second type of signal line.
[0015] In one implementation of the first aspect, the plurality of sub-pixels also includes a third color sub-pixel. In the same sub-pixel row, one of two adjacent third color sub-pixels is electrically connected to a first type of signal line, and the other is electrically connected to a second type of signal line.
[0016] Secondly, embodiments of this application provide a display device, including a display panel as provided in the first aspect.
[0017] In this embodiment, within the same row of sub-pixels, some sub-pixels are electrically connected to a first type of signal line located on one side of the sub-pixel column, while others are electrically connected to a second type of signal line located on the other side of the sub-pixel column. That is, a sub-pixel row contains both sub-pixels connected to the first type of signal line and sub-pixels connected to the second type of signal line. This reduces the charging difference between sub-pixels in different rows, thereby helping to reduce brightness differences between different sub-pixel rows, improve the horizontal stripe problem of the display panel, and enhance display quality.
[0018] Furthermore, by setting some first-color subpixels to be electrically connected to the first type of signal line and some first-color subpixels to be electrically connected to the second type of signal line within the same subpixel row, that is, a subpixel row contains both first-color subpixels connected to the first type of signal line and first-color subpixels connected to the second type of signal line, it is beneficial to reduce the charging difference of first-color subpixels in different rows, thereby further reducing the brightness difference between different subpixel rows and improving the horizontal stripe problem of the display panel. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a plan view of a display panel in the prior art;
[0021] Figure 2 This is a plan view of a display panel provided in an embodiment of this application;
[0022] Figure 3 This is a plan view of a display panel related to this application;
[0023] Figure 4 for Figure 3 The diagram shows the brightness difference between odd and even row sub-pixels in the display panel.
[0024] Figure 5 A plan view of yet another display panel provided in an embodiment of this application;
[0025] Figure 6 A plan view of yet another display panel provided in an embodiment of this application;
[0026] Figure 7 A plan view of yet another display panel provided in an embodiment of this application;
[0027] Figure 8A plan view of yet another display panel provided in an embodiment of this application;
[0028] Figure 9 for Figure 8 A switching timing diagram of a medium-sized demultiplexer;
[0029] Figure 10 This is a schematic diagram of a display device provided in an embodiment of this application. Detailed Implementation
[0030] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0031] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.
[0032] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.
[0033] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.
[0034] Figure 1 This is a planar schematic diagram of a display panel in the prior art.
[0035] In existing technologies, such as Figure 1 As shown, the display panel 01' includes multiple sub-pixels 10' and multiple data lines 20'. The data lines 20' are electrically connected to the pixel circuits in the sub-pixels 10'. The data lines 20' extend along the column direction of the display panel 01', and the multiple data lines 20' are arranged along the row direction of the display panel 01'.
[0036] The multiple data lines 20' include a first data line 21' and a second data line 22', and multiple sub-pixels 10' arranged along the column direction form a sub-pixel column 11'. In the same sub-pixel column 11', the sub-pixels 10' in odd-numbered rows are electrically connected to the first data line 21', and the sub-pixels 10' in even-numbered rows are electrically connected to the second data line 22'. The first data line 21' and the second data line 22' are located on opposite sides of the sub-pixel column 11' to which they are electrically connected, respectively.
[0037] for example Figure 1 As shown, the first data line 21' is located on the "left" side of the sub-pixel column 11' to which it is electrically connected, and the second data line 22' is located on the "right" side of the sub-pixel column 11' to which it is electrically connected.
[0038] The inventors of this application discovered through research that in the layout design of sub-pixels 10', the layout environments on opposite sides are usually different, and the loads of the first data line 21' and the second data line 22' located on opposite sides of sub-pixels 10' are also usually different. Electrically connecting all odd-numbered rows of sub-pixels 10' to the first data line 21' and all even-numbered rows of sub-pixels 10' to the second data line 22' can easily lead to a large difference in charging between odd-numbered and even-numbered rows of sub-pixels 10', which in turn can easily cause horizontal stripe problems to appear on the display panel 01'.
[0039] In view of this, the inventors of this application, after in-depth research, have provided a solution.
[0040] Figure 2 This is a plan view of a display panel provided in an embodiment of this application.
[0041] This application embodiment provides a display panel 01, such as Figure 2 As shown, the display panel 01 includes multiple sub-pixels 10 and multiple first signal lines 20, which are electrically connected to the sub-pixels 10. The first signal lines 20 extend along a first direction Y, and the multiple first signal lines 20 are arranged along a second direction X, where the first direction Y intersects with the second direction X.
[0042] Optionally, the first direction Y is the column direction of the display panel 01, and the second direction X is the row direction of the display panel 01.
[0043] Optionally, the first signal line 20 is a data signal line, which is used to write data signals to the pixel circuit in the sub-pixel 10.
[0044] The multiple first signal lines 20 include first type signal lines 21 and second type signal lines 22. Multiple sub-pixels 10 arranged along the first direction Y form a sub-pixel column 11. In the same sub-pixel column 11, some sub-pixels 10 are electrically connected to the first type signal lines 21, and some sub-pixels 10 are electrically connected to the second type signal lines 22. The first type signal lines 21 and the second type signal lines 22 are located on opposite sides of the sub-pixel column 11 to which they are electrically connected.
[0045] For example, such as Figure 2 As shown, among two adjacent sub-pixels 10 in the same sub-pixel column 11, one is electrically connected to the first type of signal line 21, and the other is electrically connected to the second type of signal line 22.
[0046] Among them, the multiple sub-pixels 10 include a first color sub-pixel 101, and the multiple sub-pixels 10 arranged along the second direction X form a sub-pixel row 12. In the same sub-pixel row 12, some of the first color sub-pixels 101 are electrically connected to the first type of signal line 21, and some of the first color sub-pixels 102 are electrically connected to the second type of signal line 22.
[0047] In other words, among the sub-pixels 10 located in the same row, some sub-pixels 10 are electrically connected to the first type of signal line 21 located on one side of the sub-pixel column 11, and some sub-pixels 10 are electrically connected to the second type of signal line 22 located on the other side of the sub-pixel column 11. Furthermore, among the sub-pixels 10 in the same row, those electrically connected to both the first type of signal line 21 and the second type of signal line 22 include sub-pixels of the same color.
[0048] In this embodiment, some sub-pixels 10 in the same row are electrically connected to a first type of signal line 21 located on one side of the sub-pixel column 11, while others are electrically connected to a second type of signal line 22 located on the other side of the sub-pixel column 11. That is, a sub-pixel row 12 contains both sub-pixels 10 connected to the first type of signal line 11 and sub-pixels 10 connected to the second type of signal line 22. This reduces the charging difference between sub-pixels 10 in different rows, thereby helping to reduce the brightness difference between different sub-pixel rows 12, improving the horizontal stripe problem of the display panel 01, and enhancing display quality.
[0049] Furthermore, the inventors of this application have discovered that if, in the same sub-pixel row 12, only some sub-pixels 10 are electrically connected to the first type of signal line 21 and some sub-pixels 10 are electrically connected to the second type of signal line 22, although the horizontal stripe problem of the display panel 01 can be improved, the horizontal stripe problem may still exist.
[0050] Combination Figure 3 and Figure 4 As shown, Figure 3 This is a plan view of a display panel related to this application. Figure 4 for Figure 3The diagram shown illustrates the brightness difference between odd and even row sub-pixels in a display panel. Figure 3 The display panel shown includes multiple sub-pixels 10, including a first color sub-pixel 101, a second color sub-pixel 102, and a third color sub-pixel 103. If sub-pixels 10 of the same color in the same sub-pixel row 12 are all electrically connected to a first type signal line 21 or a second type signal line 22, and sub-pixels 10 of the same color in odd and even rows are connected to different types of first signal lines 20. For example... Figure 4 As shown, when the displayed image is white 255 grayscale (W255), the brightness difference LV between odd-numbered and even-numbered row subpixels is 9.3 nit; when the displayed image is red 255 grayscale (R255), the brightness difference LV between odd-numbered and even-numbered row subpixels is 0.9 nit; when the displayed image is green 255 grayscale (G255), the brightness difference LV between odd-numbered and even-numbered row subpixels is 6.9 nit; and when the displayed image is blue 255 grayscale (B255), the brightness difference LV between odd-numbered and even-numbered row subpixels is 0.1 nit.
[0051] Therefore, it can be seen that in the same sub-pixel row 12, if all sub-pixels 10 of the same color are connected to the first type of signal line 21 or all are connected to the second type of signal line 22, there may still be obvious brightness differences between different sub-pixel rows 12, and the display panel will still have horizontal stripe problems.
[0052] Therefore, in this embodiment, some first color sub-pixels 101 are electrically connected to the first type of signal line 21 and some first color sub-pixels 101 are electrically connected to the second type of signal line 22 in the same sub-pixel row 12. That is, in a sub-pixel row 12, there are both first color sub-pixels 101 connected to the first type of signal line 11 and first color sub-pixels 101 connected to the second type of signal line 22. This helps to reduce the charging difference of first color sub-pixels 101 in different rows, thereby further reducing the brightness difference between different sub-pixel rows 12 and improving the horizontal stripe problem of the display panel 01.
[0053] Optionally, the first color subpixel 101 is a green subpixel.
[0054] Combination Figure 3 and Figure 4 It is known that the green subpixel has a greater impact on the brightness difference between odd and even rows of the display panel. Therefore, by setting the first color subpixel 101 as the green subpixel, the brightness difference between different subpixel rows 12 can be significantly reduced by reducing the charging difference of the green subpixels in different rows, which is beneficial to improving the horizontal stripe problem of the display panel 01.
[0055] Please continue to refer to this. Figure 2In one embodiment of this application, in the same sub-pixel row 12, one of two adjacent first color sub-pixels 101 is electrically connected to the first type of signal line 21, and the other is electrically connected to the second type of signal line 22.
[0056] For example, such as Figure 2 As shown, in the same sub-pixel row 12, two adjacent first color sub-pixels 101 include first color sub-pixels 101A and 101B. Taking the first color sub-pixel 101 on the "left" side as first color sub-pixel 101A and the first color sub-pixel 101 on the "right" side as first color sub-pixel 101B as an example, in odd-numbered sub-pixel rows 12, first color sub-pixel 101A is electrically connected to the first type of signal line 21, and first color sub-pixel 101B is electrically connected to the second type of signal line 22; in even-numbered sub-pixel rows 12, first color sub-pixel 101A is electrically connected to the second type of signal line 22, and first color sub-pixel 101B is electrically connected to the first type of signal line 21.
[0057] Furthermore, in the same sub-pixel row 12, the first color sub-pixel 101 connected to the first type of signal line 21 and the first color sub-pixel 101 connected to the second type of signal line 22 are arranged alternately.
[0058] In this embodiment, two adjacent first color sub-pixels 101 in the same sub-pixel row 12 are electrically connected to first signal lines 20 of different types, which helps to make the first color sub-pixels 101 with charging differences in the same sub-pixel row 12 more evenly distributed, thereby improving the brightness uniformity of the first color sub-pixels 101 in the same sub-pixel row 12, and further improving the brightness uniformity of the display panel.
[0059] In one embodiment of this application, such as Figure 2 As shown, the plurality of sub-pixels 10 also includes a second color sub-pixel 102 and a third color sub-pixel 103. For example, the second color sub-pixel 102 is a red sub-pixel, and the third color sub-pixel 103 is a blue sub-pixel.
[0060] In the same sub-pixel row 12, the second color sub-pixel 102 and the third color sub-pixel 103 are both electrically connected to the first type signal line 21 or the second type signal line 22.
[0061] In other words, a sub-pixel row 12 may include a second color sub-pixel 102 and a third color sub-pixel 103. In the same sub-pixel row 12, both the second color sub-pixel 102 and the third color sub-pixel 103 are electrically connected to the first type of signal line 21 or to the second type of signal line 22.
[0062] For example, such as Figure 2As shown, in the odd-numbered sub-pixel row 12, both the second-color sub-pixel 102 and the third-color sub-pixel 103 are electrically connected to the first-type signal line 21. In the even-numbered sub-pixel row 12, both the second-color sub-pixel 102 and the third-color sub-pixel 103 are electrically connected to the second-type signal line 22.
[0063] In this embodiment, within the same sub-pixel row 12, both the second color sub-pixel 102 and the third color sub-pixel 103 are electrically connected to either the first type signal line 21 or the second type signal line 22. Therefore, the second color sub-pixel 102 and the third color sub-pixel 103 in the same row only need to be electrically connected to the same type of first signal line 20, which helps reduce the process complexity of connecting the second color sub-pixel 102 and the third color sub-pixel 103 to the first signal line 20. This improves the horizontal stripe problem of the display panel 01 and also helps reduce the manufacturing cost of the display panel 01.
[0064] Figure 5 This is a plan view of another display panel provided in an embodiment of this application.
[0065] In one embodiment of this application, such as Figure 5 As shown, the plurality of sub-pixels 10 also includes a second color sub-pixel 102 and a third color sub-pixel 103. For example, the second color sub-pixel 102 is a red sub-pixel, and the third color sub-pixel 103 is a blue sub-pixel.
[0066] In the same sub-pixel row 12, one of the second color sub-pixel 102 and the third color sub-pixel 103 is electrically connected to the first type signal line 21, and the other is electrically connected to the second type signal line 22.
[0067] In other words, a sub-pixel row 12 may include a second color sub-pixel 102 and a third color sub-pixel 103. In the same sub-pixel row 12, the second color sub-pixel 102 and the third color sub-pixel 103 are electrically connected to a first signal line 20 of different types, respectively.
[0068] Furthermore, in the same sub-pixel row 12, multiple second color sub-pixels 102 can be electrically connected to the same type of first signal line 20 or to different types of first signal lines 20; multiple third color sub-pixels 103 can be electrically connected to the same type of first signal line 20 or to different types of first signal lines 20.
[0069] For example, such as Figure 5 As shown, in any sub-pixel row 12, the second color sub-pixel 102 is electrically connected to the first type signal line 21, and the third color sub-pixel 103 is electrically connected to the second type signal line 22.
[0070] In this embodiment, the second color sub-pixel 102 and the third color sub-pixel 103 in the same sub-pixel row 12 are electrically connected to different types of first signal lines 20, respectively. In the same sub-pixel row 12, it is beneficial to make the number of sub-pixels 10 electrically connected to the first type of signal line 21 comparable to the number of sub-pixels 10 electrically connected to the second type of signal line 22. This is beneficial to further reduce the charging difference of sub-pixels 10 in different rows, thereby further reducing the brightness difference between different sub-pixel rows 12, and further improving the horizontal stripe problem of the display panel 01.
[0071] In one embodiment of this application, such as Figure 2 and Figure 5 As shown, sub-pixel column 11 includes a first type of sub-pixel column 111, a second type of sub-pixel column 112, and a third type of sub-pixel column 113. The first type of sub-pixel column 111 and the second type of sub-pixel column 112 both include a second color sub-pixel 102 and a third color sub-pixel 103, and the third type of sub-pixel column 113 includes a first color sub-pixel 101.
[0072] For example, such as Figure 2 and Figure 5 As shown, the third type of sub-pixel column 113 may include only the first color sub-pixel 101, excluding the second color sub-pixel 102 and the third color sub-pixel 103. The first type of sub-pixel column 111 and the second type of sub-pixel column 112 both include the second color sub-pixel 102 and the third color sub-pixel 103, but exclude the first color sub-pixel 101.
[0073] In the display panel 01, a first type sub-pixel column 111 or a second type sub-pixel column 112 is provided between two adjacent third type sub-pixel columns 113.
[0074] Specifically, the second color sub-pixel 102 in the first type of sub-pixel column 111 and the third color sub-pixel 103 in the second type of sub-pixel column 112 are located in the same sub-pixel row 12.
[0075] Optionally, in the same first-type sub-pixel column 111 and the same second-type sub-pixel column 112, sub-pixels 10 of the same color are electrically connected to the same first signal line 20. That is, the sub-pixels 10 electrically connected to a first signal line 20 can be of the same color. Based on this arrangement, it is beneficial to reduce the number of signal transitions on the same first signal line 20, thereby saving power consumption.
[0076] For example, such as Figure 2As shown, in the first type of sub-pixel column 111, the second color sub-pixel 102 is electrically connected to the first type of signal line 21, and the third color sub-pixel 103 is electrically connected to the second type of signal line 22. In the second type of sub-pixel column 112, the third color sub-pixel 103 is electrically connected to the first type of signal line 21, and the second color sub-pixel 102 is electrically connected to the second type of signal line 22.
[0077] For example, such as Figure 5 As shown, in the first type of sub-pixel column 111 and the second type of sub-pixel column 112, the second color sub-pixel 102 is electrically connected to the first type of signal line 21, and the third color sub-pixel 103 is electrically connected to the second type of signal line 22.
[0078] Please continue to refer to this. Figure 2 and Figure 5 In one embodiment of this application, in the same first type of sub-pixel column 111 and the same second type of sub-pixel column 112, the second color sub-pixel 102 and the third color sub-pixel 103 are arranged alternately.
[0079] For example, such as Figure 2 and Figure 5 As shown, in the same first-type sub-pixel column 111, the second-color sub-pixel 102 is located in the odd-numbered sub-pixel row 12, and the third-color sub-pixel 103 is located in the even-numbered sub-pixel row 12. In the same second-type sub-pixel column 112, the third-color sub-pixel 103 is located in the odd-numbered sub-pixel row 12, and the second-color sub-pixel 102 is located in the even-numbered sub-pixel row 12.
[0080] In this embodiment, the second color sub-pixel 102 and the third color sub-pixel 103 in the same sub-pixel column 11 are arranged alternately, which helps to make the distance between the first color sub-pixel 101, the second color sub-pixel 102 and the third color sub-pixel 103 closer, thereby improving the fineness of the displayed image.
[0081] Figure 6 This is a plan view of another display panel provided in an embodiment of this application.
[0082] In one embodiment of this application, such as Figure 6 As shown, the multiple sub-pixels 10 also include second color sub-pixels 102. In the same sub-pixel row 12, one of two adjacent second color sub-pixels 102 is electrically connected to the first type signal line 21, and the other is electrically connected to the second type signal line 22.
[0083] For example, such as Figure 6As shown, in the same sub-pixel row 12, two adjacent second-color sub-pixels 102 include a second-color sub-pixel 102A and a second-color sub-pixel 102B. Taking the second-color sub-pixel 102 on the "left" side as second-color sub-pixel 102A and the second-color sub-pixel 102 on the "right" side as second-color sub-pixel 102B as an example, in odd-numbered sub-pixel rows 12, second-color sub-pixel 102A is electrically connected to the first-type signal line 21, and second-color sub-pixel 102B is electrically connected to the second-type signal line 22. In even-numbered sub-pixel rows 12, second-color sub-pixel 102A is electrically connected to the second-type signal line 22, and second-color sub-pixel 102B is electrically connected to the first-type signal line 21.
[0084] Based on this configuration, in a sub-pixel row 12, some second-color sub-pixels 102 are electrically connected to the first-type signal line 21, and some second-color sub-pixels 102 are electrically connected to the second-type signal line 22. That is, in a sub-pixel row 12, there are both second-color sub-pixels 102 connected to the first-type signal line 11 and second-color sub-pixels 102 connected to the second-type signal line 22. This helps reduce the charging difference of the second-color sub-pixels 102 in different rows, thereby further reducing the brightness difference between different sub-pixel rows 12 and further improving the horizontal stripe problem of the display panel 01.
[0085] Furthermore, by electrically connecting two adjacent second color sub-pixels 102 in the same sub-pixel row 12 to first signal lines 20 of different types, it is beneficial to make the second color sub-pixels 102 with charging differences in the same sub-pixel row 12 more evenly distributed, thereby improving the brightness uniformity of the second color sub-pixels 102 in the same sub-pixel row 12, and thus improving the brightness uniformity of the display panel 01.
[0086] Optionally, in the same sub-pixel row 12, the second color sub-pixel 102 connected to the first type of signal line 21 and the second color sub-pixel 102 connected to the second type of signal line 22 are arranged alternately.
[0087] Optionally, the second color sub-pixel 102 is a red sub-pixel. (Combined with the above...) Figure 3 and Figure 4 It is known that the red subpixel has a relatively large impact on the brightness difference between odd and even rows of the display panel. Therefore, setting the second color subpixel 102 as the red subpixel can reduce the charging difference of the red subpixels in different rows, which is beneficial to further reduce the brightness difference between different subpixel rows 12, and thus further improve the horizontal stripe problem of the display panel 01.
[0088] Figure 7 This is a plan view of another display panel provided in an embodiment of this application.
[0089] In one embodiment of this application, such as Figure 6 and Figure 7 As shown, the plurality of sub-pixels 10 also includes a third color sub-pixel 103. In the same sub-pixel row 12, one of two adjacent third color sub-pixels 103 is electrically connected to the first type signal line 21, and the other is electrically connected to the second type signal line 22. Optionally, the third color sub-pixel 103 is a blue sub-pixel.
[0090] For example, such as Figure 6 As shown, in the same sub-pixel row 12, two adjacent third-color sub-pixels 103 include third-color sub-pixels 103A and 103B. Taking the third-color sub-pixel 103 on the "left" side as third-color sub-pixel 103A and the third-color sub-pixel 103 on the "right" side as third-color sub-pixel 103B as an example, in odd-numbered sub-pixel rows 12, third-color sub-pixel 103A is electrically connected to the first type signal line 21, and third-color sub-pixel 102B is electrically connected to the second type signal line 22. In even-numbered sub-pixel rows 12, third-color sub-pixel 103A is electrically connected to the second type signal line 22, and third-color sub-pixel 102B is electrically connected to the first type signal line 21.
[0091] For example, such as Figure 7 As shown, in the same sub-pixel row 12, two adjacent third-color sub-pixels 103 include third-color sub-pixels 103A and 103B. Taking the third-color sub-pixel 103 on the "left" side as third-color sub-pixel 103A and the third-color sub-pixel 103 on the "right" side as third-color sub-pixel 103B as an example, in both odd-numbered and even-numbered sub-pixel rows 12, third-color sub-pixels 103A are electrically connected to the second type of signal line 22, and third-color sub-pixels 102B are electrically connected to the first type of signal line 22.
[0092] Based on this configuration, in a sub-pixel row 12, some third-color sub-pixels 103 are electrically connected to the first-type signal line 21, and some third-color sub-pixels 103 are electrically connected to the second-type signal line 22. That is, in a sub-pixel row 12, there are both third-color sub-pixels 103 connected to the first-type signal line 11 and third-color sub-pixels 103 connected to the second-type signal line 22. This helps reduce the charging differences of the third-color sub-pixels 103 in different rows, thereby further reducing the brightness differences between different sub-pixel rows 12 and further improving the horizontal stripe problem of the display panel 01.
[0093] Furthermore, by electrically connecting two adjacent third color sub-pixels 103 in the same sub-pixel row 12 to first signal lines 20 of different types, it is beneficial to make the third color sub-pixels 103 with charging differences in the same sub-pixel row 12 more evenly distributed, thereby improving the brightness uniformity of the third color sub-pixels 103 in the same sub-pixel row 12, and thus improving the brightness uniformity of the display panel 01.
[0094] Optionally, in the same sub-pixel row 12, the third color sub-pixel 103 connected to the first type of signal line 21 and the third color sub-pixel 103 connected to the second type of signal line 22 are arranged alternately.
[0095] Figure 8 This is a plan view of another display panel provided in an embodiment of this application.
[0096] like Figure 8 As shown, in one embodiment of this application, the display panel 01 further includes at least one multiplexer 30. The multiplexer 30 may include an input terminal 31 and multiple output terminals 32. The multiple output terminals 32 are electrically connected to the first signal line 20, and the input terminal 31 of the multiplexer 30 is electrically connected to the driver chip (not shown in the figure).
[0097] The demultiplexer 30 includes multiple switches K. The first terminals of the multiple switches K are electrically connected to the input terminal 31 of the demultiplexer 30, and the second terminals of the multiple switches K are electrically connected to the output terminals 32 of the demultiplexer 30 respectively. The demultiplexer 30 also includes multiple control signal lines MUX, and the control terminals of the switches K are electrically connected to the control signal lines MUX. The driver chip transmits data signals to the input terminal 31 of the demultiplexer 30, and the signals transmitted by the control signal lines MUX control whether the multiple output terminals 32 of the demultiplexer 30 output signals by controlling the switching states of the switches K.
[0098] For example, such as Figure 8 As shown, the demultiplexer 30 includes one input terminal 31 and four output terminals 32. The four output terminals 32 include a first output terminal 321, a second output terminal 322, a third output terminal 323, and a fourth output terminal 324. The first output terminal 321 and the second output terminal 322 are electrically connected to the first signal line 20 connecting the odd-numbered row sub-pixels 10, and the third output terminal 323 and the fourth output terminal 324 are electrically connected to the first signal line 20 connecting the even-numbered row sub-pixels 10.
[0099] The multiple switches K include a first switch K1, a second switch K2, a third switch K3, and a fourth switch K4. The first poles of the first switch K1, the second switch K2, the third switch K3, and the fourth switch K4 are electrically connected and electrically connected to the input terminal 31 of the multiplexer 30. The second poles of the first switch K1 and the second switch K2 are electrically connected to the first output terminal 321 and the second output terminal 322, respectively. The second poles of the third switch K3 and the fourth switch K4 are electrically connected to the third output terminal 323 and the fourth output terminal 324, respectively.
[0100] The multiple control signal lines MUX include a first control signal line MUX1, a second control signal line MUX2, a third control signal line MUX3, and a fourth control signal line MUX4. The first control signal line MUX1 is electrically connected to the control terminal of the first switch K1, the second control signal line MUX2 is electrically connected to the control terminal of the second switch K2, the third control signal line MUX3 is electrically connected to the control terminal of the third switch K3, and the fourth control signal line MUX4 is electrically connected to the control terminal of the fourth switch K4.
[0101] Combination Figure 9 As shown, Figure 9 for Figure 8 A switching timing diagram of a medium-sized demultiplexer: the first control signal line MUX1, the second control signal line MUX2, the third control signal line MUX3, and the fourth control signal line MUX4 sequentially transmit valid signals to control the first switch K1, the second switch K2, the third switch K3, and the fourth switch K4 to turn on sequentially.
[0102] In this embodiment, the demultiplexer 30 can transmit data signals to two adjacent sub-pixels 10 in the same column through different types of first signal lines 20. Therefore, the data writing process of two adjacent sub-pixels 10 in the same column can be independent of each other. That is, the data writing process of two adjacent sub-pixel rows 12 does not affect each other, thereby increasing the on-time of the data writing transistor in the sub-pixel 10, and thus increasing the time for data signal writing to the sub-pixel 10, improving the display unevenness problem caused by insufficient data signal writing in high-frequency, high-resolution products.
[0103] Figure 10 This is a schematic diagram of a display device provided in an embodiment of this application.
[0104] like Figure 10 As shown, this application provides a display device 02, including the display panel 01 as described in the above embodiments. Exemplarily, the display device 02 provided in this application can be an electronic device such as a mobile phone, computer, television, in-vehicle display area, or wearable electronic device. This application does not impose specific limitations.
[0105] In the display device 02, among the sub-pixels 10 arranged in the same row, some sub-pixels 10 are electrically connected to a first type signal line 21 located on one side of the sub-pixel column 11, and some sub-pixels 10 are electrically connected to a second type signal line 22 located on the other side of the sub-pixel column 11. That is, a sub-pixel row 12 contains both sub-pixels 10 connected to the first type signal line 11 and sub-pixels 10 connected to the second type signal line 22. This reduces the charging difference of sub-pixels 10 in different rows, thereby helping to reduce the brightness difference between different sub-pixel rows 12, improving the horizontal stripe problem of the display panel 01, and improving the display quality.
[0106] Furthermore, by setting some of the first color sub-pixels 101 in the same sub-pixel row 12 to be electrically connected to the first type of signal line 21 and some of the first color sub-pixels 101 to be electrically connected to the second type of signal line 22, that is, in a sub-pixel row 12, there are both first color sub-pixels 101 connected to the first type of signal line 11 and first color sub-pixels 101 connected to the second type of signal line 22. This helps to reduce the charging difference of the first color sub-pixels 101 in different rows, thereby further reducing the brightness difference between different sub-pixel rows 12 and improving the horizontal stripe problem of the display panel 01.
[0107] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.
Claims
1. A display panel, characterized in that, It includes multiple sub-pixels and multiple first signal lines, the first signal lines extending along a first direction, and the multiple first signal lines arranged along a second direction, the first direction intersecting the second direction; The plurality of first signal lines include first type signal lines and second type signal lines. The plurality of sub-pixels arranged along the first direction form a sub-pixel column. In the same sub-pixel column, some of the sub-pixels are electrically connected to the first type signal lines and some of the sub-pixels are electrically connected to the second type signal lines. The first type signal lines and the second type signal lines are located on opposite sides of the sub-pixel columns to which they are electrically connected. The plurality of sub-pixels include a first color sub-pixel, and the plurality of sub-pixels arranged along the second direction form a sub-pixel row. In the same sub-pixel row, some of the first color sub-pixels are electrically connected to the first type of signal line, and some of the first color sub-pixels are electrically connected to the second type of signal line. In the same sub-pixel row, the first color sub-pixels connected to the first type of signal lines are arranged alternately with the first color sub-pixels connected to the second type of signal lines; In the same sub-pixel column, the first color sub-pixels connected to the first type of signal lines are arranged alternately with the first color sub-pixels connected to the second type of signal lines; The plurality of sub-pixels also include a second color sub-pixel and a third color sub-pixel. In the same row of sub-pixels, both the second color sub-pixel and the third color sub-pixel are electrically connected to the first type of signal line or the second type of signal line. Alternatively, within the same sub-pixel row, one of the second color sub-pixel and the third color sub-pixel is electrically connected to the first type of signal line, and the other is electrically connected to the second type of signal line.
2. The display panel according to claim 1, characterized in that, The first color sub-pixel is the green sub-pixel.
3. The display panel according to claim 1, characterized in that, In the odd-numbered sub-pixel rows, both the second color sub-pixel and the third color sub-pixel are electrically connected to the first type of signal line; In the even-numbered sub-pixel rows, both the second color sub-pixel and the third color sub-pixel are electrically connected to the second type of signal line.
4. The display panel according to claim 1, characterized in that, The sub-pixel column includes a first type of sub-pixel column, a second type of sub-pixel column, and a third type of sub-pixel column. The first type of sub-pixel column and the second type of sub-pixel column each include a second color sub-pixel and a third color sub-pixel. The third type of sub-pixel column includes a first color sub-pixel. The third type of sub-pixel column is located between the first type of sub-pixel column and the second type of sub-pixel column. Wherein, the second color sub-pixel in the first type of sub-pixel column and the third color sub-pixel in the second type of sub-pixel column are located in the same sub-pixel row, and the third color sub-pixel in the first type of sub-pixel column and the second color sub-pixel in the second type of sub-pixel column are located in the same sub-pixel row.
5. The display panel according to claim 4, characterized in that, In the first type of sub-pixel column and the second type of sub-pixel column, the second color sub-pixel is electrically connected to the first type of signal line, and the third color sub-pixel is electrically connected to the second type of signal line.
6. The display panel according to claim 4, characterized in that, In the same first type of sub-pixel column and the same second type of sub-pixel column, the second color sub-pixels and the third color sub-pixels are arranged alternately.
7. A display device, characterized in that, Includes the display panel as described in any one of claims 1-6.
Citation Information
Patent Citations
Display device
CN101494020A
Display device
CN108242222A
Display panel and display device
CN112562573A
Active matrix type liquid crystal display apparatus
US6552706B1