Liquid crystal display panel

Abstract

The embodiment of the present application provides a liquid crystal display panel, comprising: a substrate; a plurality of data lines located on the substrate, arranged along a first direction and extending along a second direction, the first direction and the second direction intersecting; a plurality of scan lines located on the substrate, arranged along the second direction and extending along the first direction; and a plurality of pixel regions defined by the data lines and the scan lines interlacing each other; wherein the data line comprises a first main stem extending along the second direction and a plurality of first branches located in the corresponding pixel regions, the plurality of first branches extend in multiple directions, and the first branch is connected with the first main stem. By designing the data line to have the first main stem and the first branch, the cross-sectional area of the data line can be increased, the impedance of the data line is reduced, and thus the charging failure of the far-end pixel electrode is improved.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more particularly to a liquid crystal display panel. Background Technology

[0002] Currently, LCD panels use a single data line to provide the driving signal. This driving signal is provided by the source driver (or chip-on-film, COF) located at the top or bottom bezel of the LCD panel. The data line connects to the opposite side of the COF. Due to the load on the wire, the voltage drops significantly at the end far from the COF, resulting in poor charging at the far end and poor display performance. Summary of the Invention

[0003] This application provides a liquid crystal display panel to solve the technical problem of poor remote charging of liquid crystal display panels.

[0004] To solve the above problems, the technical solution provided in this application is as follows:

[0005] This invention provides a liquid crystal display panel, comprising:

[0006] Substrate;

[0007] Multiple data lines are located on the substrate, arranged along a first direction and extending along a second direction, wherein the first direction and the second direction intersect.

[0008] Multiple scan lines, located on the substrate and disposed on a different layer from the data lines, are arranged along the second direction and extend along the first direction; and

[0009] Multiple pixel regions are defined by the interlacing of the data lines and the scan lines; wherein...

[0010] The data line includes a first trunk extending along the second direction and a plurality of first branches located in the corresponding pixel regions. The plurality of first branches extend in multiple directions and are connected to the first trunk.

[0011] In some embodiments of this application, the liquid crystal display panel further includes a plurality of pixel electrodes disposed on the substrate. The pixel electrodes are disposed on a different layer from the data lines. The pixel electrodes are located in the corresponding pixel regions. The pixel electrodes include a main electrode and a plurality of branch electrodes extending from the main electrode in different directions. The orthographic projection of the first branch on the substrate does not overlap with the orthographic projection of the branch electrode on the substrate.

[0012] In some embodiments of this application, the width of the first branch is less than or equal to the gap between two adjacent branch electrodes.

[0013] In some embodiments of this application, the liquid crystal display panel further includes a plurality of common signal lines disposed on the substrate. The common signal lines are disposed on a different layer from the data lines. The common signal lines extend along the second direction, and at least a portion of the orthographic projection of the first branch on the substrate overlaps with the orthographic projection of the common signal line on the substrate.

[0014] In some embodiments of this application, the ends of the plurality of first branches of the data line that are away from the first trunk are interconnected.

[0015] In some embodiments of this application, the data line includes multiple domains, the multiple first branches within the same domain extend in the same direction, and the first branches between adjacent domains extend in different directions.

[0016] In some embodiments of this application, the data line further includes a plurality of support portions extending in a direction opposite to the second direction, the first trunk and the support portions intersect, and the ends of some of the first branches away from the first trunk are connected to the support portions, the first trunk and the support portions dividing the plurality of first branches into the plurality of domains.

[0017] In some embodiments of this application, the main electrode of the pixel electrode includes a first main electrode extending along the first direction and a second main electrode extending along the second direction. The first main electrode and the second main electrode intersect and divide the branch electrode into multiple domains. The support portion of the data line extends along the first direction, and the orthographic projection of the support portion on the substrate is located within the orthographic projection of the first main electrode on the substrate.

[0018] In some embodiments of this application, the first trunk includes a first side and a second side opposite to each other, a portion of the first branch extends from the first side to the pixel region on the same side as the first side, and another portion of the first branch extends from the second side to the pixel region on the same side as the second side.

[0019] In some embodiments of this application, within the same pixel region, a portion of the first branch of a data line is provided on one side of the second main electrode, and a portion of the first branch of another data line is provided on the opposite side, wherein the first branches on the two opposite sides of the second main electrode are disconnected at the second main electrode.

[0020] In some embodiments of this application, within the same pixel region, the number of domains of the data line is the same as the number of domains of the pixel electrode.

[0021] In some embodiments of this application, within the same pixel region, the extension direction of the first branch within a domain of the data line is the same as the extension direction of the branch electrode within the corresponding domain of the pixel electrode.

[0022] In some embodiments of this application, the liquid crystal display panel further includes a shared electrode extending along the second direction, wherein the orthographic projection of the shared electrode on the substrate partially overlaps with the orthographic projection of the second main electrode of the pixel electrode on the substrate, and within the same pixel region, the first main electrode and the support portion divide the plurality of first branches into eight domains, and the first branches on both sides of the shared electrode are disconnected at the shared electrode.

[0023] In some embodiments of this application, the data line is disposed on the same layer as the shared electrode.

[0024] In some embodiments of this application, the liquid crystal display panel further includes a plurality of source drivers, and the first trunk is connected to the corresponding source drivers.

[0025] The beneficial effects of this application are as follows: The liquid crystal display panel provided in this application embodiment includes: a substrate; multiple data lines located on the substrate, arranged along a first direction and extending along a second direction, the first direction and the second direction intersecting; multiple scan lines located on the substrate, arranged along the second direction and extending along the first direction; and multiple pixel regions defined by the data lines and the scan lines intersecting each other; wherein, the data lines include a first trunk extending along the second direction and multiple first branches located in the corresponding pixel regions, the multiple first branches extending in multiple directions, and at least some of the first branches are connected to the first trunk. By designing the data lines to have a first trunk and first branches, the cross-sectional area of ​​the data lines can be increased, the impedance of the data lines can be reduced, thereby improving poor charging of the far-end pixel electrodes. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments or prior art, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a plan view of a liquid crystal display panel provided in an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of a data line corresponding to a pixel region provided in an embodiment of the present invention;

[0029] Figure 3 A schematic diagram of the stacked plane of data lines and pixel electrodes corresponding to a pixel region provided in an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the pixel electrode structure provided in an embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the structure of the first branches on both sides of the first trunk of the data line provided in an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of the data line corresponding to two pixel regions provided in an embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the structure of a data line corresponding to a pixel region, provided for other embodiments of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0037] In the description of this application, it should be noted that the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise expressly specified and limited. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature may include direct contact between the first and second features, or contact between the first and second features not in direct contact but through another feature between them.

[0039] Please see Figures 1 to 4 , Figure 1 This is a schematic diagram of the film layer for the data lines, scan lines, and common signal lines provided in the embodiments of this application. Figure 2 This is a schematic diagram of the structure of a data line corresponding to a pixel region provided in an embodiment of this application. Figure 3 This is a schematic diagram of the film layer of the data line and pixel electrode provided in an embodiment of this application. Figure 4 This is a planar schematic diagram of a pixel electrode provided in an embodiment of this application. The liquid crystal display panel 100 provided in this application includes a substrate 10, and multiple data lines 20, multiple scan lines 30, multiple common signal lines 40, multiple pixel electrodes 60 arranged in an array, and thin-film transistors arranged in an array, all disposed on the substrate 10. The data lines 20 and the scan lines 30 are disposed on different layers, the data lines 20 and the common signal lines 40 are disposed on different layers, and the data lines and the pixel electrodes 60 are disposed on different layers.

[0040] The data lines 20 are arranged along a first direction X and extend along a second direction Y, while the scan lines 30 are arranged along the second direction Y and extend along the first direction X. The first direction X and the second direction Y intersect; specifically, the first direction X and the second direction Y can be perpendicular to each other. The multiple data lines 20 and the multiple scan lines 30 intersect to define multiple pixel regions 101, each pixel region corresponding to a sub-pixel.

[0041] The pixel electrode 60 is located within the corresponding pixel region 101. The source 51 of the thin-film transistor is electrically connected to a data line 20 corresponding to the pixel region 101. The drain 52 of the thin-film transistor is electrically connected to the pixel electrode 60. The gate 53 of the thin-film transistor is electrically connected to the scan line 30. The data line 20 is electrically connected to the source driver of the liquid crystal display panel 100. The scan line 30 transmits a scan signal to the thin-film transistor to turn it on. The data line 20 transmits a data drive signal from the source driver to charge the pixel electrode 60.

[0042] In an embodiment of the present invention, the liquid crystal display panel 100 further includes a storage capacitor, the storage capacitor Cst, which can be formed using the metal layer where the common signal line 40 is located and the film layer where the pixel electrode 60 is located.

[0043] Specifically, the gate 53, the scan line 30, the first electrode plate C1 of the storage capacitor, and the common signal line 40 can be disposed in the same layer and patterned using the same material and the same manufacturing process. Specifically, the liquid crystal display panel includes a first metal layer disposed on the substrate 10. A patterned film layer is formed on the first metal layer through processes such as exposure, development, and etching, thereby forming the gate 53, the scan line 30, the first electrode plate C1 of the storage capacitor, and the common signal line 40 at specific locations. The electrode plate C1 and the common signal line 40 are in contact; in other words, the first electrode plate C1 is a metal block extending from the common signal line 40.

[0044] Please see Figure 4 The pixel electrode 60 includes, but is not limited to, indium tin oxide (ITO) material. An ITO film can be deposited on the first metal layer, and while the ITO film is subjected to processes such as exposure, development, and etching to form the pixel electrode 60 pattern at corresponding positions, a second electrode plate C2 is formed at the corresponding position of the first electrode plate C1, such that the first electrode plate C1 and the second electrode plate C2 at least partially overlap to form the storage capacitor Cst of the liquid crystal display panel. The second electrode plate C2 is in contact with the pixel electrode 60, meaning the second electrode plate C2 can be an electrode block extending from the pixel electrode 60.

[0045] Please see Figure 3 and Figure 4 In embodiments of the present invention, the data line 20, the source electrode 51, and the drain electrode 52 can be disposed in the same layer. A second metal layer is disposed between the first metal layer and the pixel electrode, and the data line 20, the source electrode 51, and the drain electrode 52 are formed by processes such as exposure, development, and etching on the second metal layer. It is understood that an insulating layer is provided between each metal layer or conductive layer to provide insulation. The pixel electrode 60 is electrically connected to the drain electrode 52 through a via 601 in the insulating layer. To facilitate electrical connection, a metal block of the second metal layer is retained at the electrode plate of the storage capacitor Cst, and this metal block is connected to the drain electrode 52, thereby enabling the pixel electrode 60 to achieve electrical connection with the drain electrode 52 by contacting the metal block at that location.

[0046] Since the source driver is often located on the upper or lower side of the liquid crystal display panel 100, the signal from the source driver is transmitted from the source driver of the liquid crystal display panel 100 to the opposite side via the data line 20. Due to the wire load of the data line 20, the voltage drops significantly away from the source driver, which can lead to poor charging of the distant pixel electrode 60. This application embodiment improves the data line 20 to solve the above-mentioned defects.

[0047] Specifically, please refer to Figure 2 and Figure 5 , Figure 2 The diagram shown is a schematic of the data line structure corresponding to a pixel area. Figure 5 The diagram shows a schematic of the first branches on both sides of the data line 20. The data line 20 includes a first trunk 21 extending along the second direction Y and a plurality of first branches 22 located in the corresponding pixel region 101. The plurality of first branches 22 extend in multiple directions, and at least some of the first branches 22 are connected to the first trunk 21. By designing the data line 20 to have a first trunk 21 and a plurality of first branches 22 extending in different directions, the cross-sectional area of ​​the data line 20 can be increased, the impedance of the data line can be reduced, the loss during signal transmission can be reduced, and thus the poor charging of the pixel electrode 60 can be improved.

[0048] The liquid crystal display panel of this embodiment further includes a liquid crystal layer and a common electrode (not shown in the figure). The common electrode can be disposed on the pixel electrode 60 or on another substrate. The common electrode is typically disposed across an entire surface, while the pixel electrode 60 is patterned. The common electrode and the pixel electrode 60 form an electric field, causing the liquid crystal corresponding to the pixel electrode to deflect, thereby achieving display. To avoid interference from the first branch 22 of the data line 20 to the electric field formed by the pixel electrode 60, the first branch 22 of the data line 20 needs to be disposed away from the pixel electrode 60 as much as possible.

[0049] Specifically, please also refer to Figure 3 and Figure 4 The pixel electrode 60 includes a main electrode 61 and a plurality of branch electrodes 62 extending from the main electrode 61 in different directions. The orthographic projection of the first branch 22 on the substrate 10 does not overlap with the orthographic projection of the branch electrode 62 on the substrate 10, so as to avoid the first branch 22 interfering with the electric field formed by the branch electrode 62 of the pixel electrode 60 and the common electrode of the upper layer.

[0050] Furthermore, the first branch 22 is disposed within the gap between adjacent branch electrodes 62, and the width W of the first branch is less than or equal to the gap S between two adjacent branch electrodes. Thus, the first branch 22 will neither interfere with the electric field formed between the pixel electrode 60 and the common electrode, nor affect the pixel aperture ratio.

[0051] Please see Figure 1 In an embodiment of the present invention, the common signal line 40 extends along the second direction Y, that is, the common signal line 40 is arranged parallel to the first main branch 21. The common signal line 40 is located between adjacent pixel electrodes 60, and the common signal line 40 can serve as a light shield to prevent light leakage between pixel electrodes 60. At least a portion of the orthographic projection of the first branch 22 on the substrate 10 overlaps with the orthographic projection of the common signal line 40 on the substrate 10. The overlap of the first branch 22 and the common signal line 40 can form a capacitor, which is equivalent to increasing the storage capacitor Cst, and can reduce the feedthrough voltage caused by data voltage changes.

[0052] Please see Figure 2 The ends 221 of the multiple first branches 22 of the data line 20 that are away from the first main trunk 21 are connected to each other. By connecting the ends of each first branch 22, the function of increasing the cross-sectional area can be avoided by the first branch 22 being broken, and the overall support stability of the pattern of the data line 20 can also be increased.

[0053] The first branch 22 that is not connected to the first trunk 21 may be connected to the source 51 or the drain 52 to enhance the overall interconnectivity of the data line 20 pattern.

[0054] Furthermore, the data line 20 includes multiple domains, and the multiple first branches 22 within the same domain extend in the same direction, while the first branches 22 between adjacent domains extend in different directions.

[0055] Furthermore, the data line 20 also includes a plurality of support portions 23 extending in a direction opposite to the second direction Y. The first main trunk 21 and the support portions 23 intersect, and the ends 221 of some of the first branches 22 away from the first main trunk 21 are connected to the support portions 23. The first main trunk 21 and the support portions 23 divide the plurality of first branches 22 into the plurality of domains. The support portions 23 can support the first branches 22. In some embodiments of the present invention, the width of the support portion 23 is greater than the width W of the first branch 22.

[0056] Please see Figure 4The main electrode 61 of the pixel electrode 60 includes a first main electrode 611 extending along the first direction X and a second main electrode 612 extending along the second direction Y. The first main electrode 611 and the second main electrode 612 intersect and divide the branch electrode 62 into multiple domains.

[0057] Please see Figure 3 In a specific implementation, the support portion 23 of the data line 20 can extend along the first direction X, and the orthographic projection of the support portion 23 on the substrate 10 is located within the orthographic projection of the first main electrode 611 on the substrate 10. Although this design overlaps with the main electrode portion of the pixel electrode 60, experiments conducted by the inventors have verified that the interference of the overlapping portion on the electric field formed by the pixel electrode 60 as a whole and the common electrode is negligible. The electric field interference caused by placing the support portion 23 in the area where the first main electrode 611 is located is far less than the capacitive interference caused by placing the support portion 23 in the area where the branch electrode 62 of the pixel electrode 60 is located.

[0058] Please also refer to Figure 5 The first main trunk 21 includes a first side 201 and a second side 202 opposite to each other. A portion of the first branch 22 extends from the first side 201 to the pixel region 101 on the same side as the first side 201, and another portion of the first branch 22 extends from the second side 202 to the pixel region 101 on the same side as the second side 202.

[0059] like Figure 6 As shown, Figure 6 The diagram illustrates the distribution of three data lines in two pixel regions. For example, the first data line D1, the second data line D2, and the third data line D3 are three adjacent data lines 20. A portion of the first branch 22 of the first data line D1 extends from the second side 202 of its first trunk 21 towards the first pixel region PX1; a portion of the first branch 22 of the second data line D2 extends from the first side 201 of its first trunk 21 towards the first pixel region PX1, and another portion of the second branch 22 of the second data line D2 extends from the second side 202 of its first trunk 21 towards the second pixel region PX2; a portion of the first branch 22 of the third data line D3 extends from the first side of its first trunk 21 towards the second pixel region PX2. That is, the first branch 22 within each pixel region 101 originates from two data lines 20.

[0060] Please see Figure 3 and Figure 4 Within the same pixel region 101, the number of domains of the data line 20 is the same as the number of domains of the pixel electrode 60.

[0061] In a specific embodiment, the distribution of the first branch 22 of the data line 20 can be designed based on the pattern and number of domains of the pixel electrode 60. Within the same pixel region 101, the extension direction of the first branch 22 within a domain of the data line 20 is the same as the extension direction of the branch electrode 62 within the corresponding domain of the pixel electrode 60. In this embodiment of the invention, a domain can be understood as a region; the domain of the pixel electrode 60 corresponding to the data line 20 refers to the domain where the pixel electrode 60 and the data line 20 overlap in the thickness direction of the substrate 10.

[0062] In embodiments of the present invention, the pixel electrode 60 may be a four-domain design, or a two-domain or eight-domain design, that is, the data line 20 may be a four-domain, two-domain, or eight-domain design. Figure 4 As shown, taking a four-domain pixel electrode as an example, the first main electrode 611 and the second main electrode 612 of the pixel electrode 60 divide the pixel electrode 60 into four domains. Multiple branch electrodes 62 within each domain extend in the same direction, while branch electrodes 62 between adjacent domains can extend in different directions. Specifically, the branch electrodes 62 within each domain are tilted relative to the second main electrode 612 at an angle of 45°, which can improve the dark lines appearing around the edges of the sub-pixels. In other embodiments, the tilt angle of the branch electrodes 62 relative to the second main electrode 612 in different domains can be different. For example, the tilt angle of the branch electrodes 62 in one domain can be 30°, while the tilt angle of the branch electrodes 62 in another adjacent domain can be 60°.

[0063] Correspondingly, such as Figure 3 As shown, within a pixel region, a four-domain first branch 22 is also correspondingly provided. This four-domain first branch 22 originates from two different data lines 20 (e.g., first data line D1 and second data line D2). One data line 20 divides its first branch 22 within the pixel region 101 into two domains via a first trunk 21 and a support portion 23. The other data line 20 also divides its first branch 22 within the pixel region 101 into two domains via a first trunk 21 and a support portion 23, thus forming a four-domain first branch 22 design. The first branch 22 is inclined relative to the first trunk 21 at an angle of 45°. The inclination angle of the first branch 22 can be kept the same as the inclination angle of the branch electrode 62 to avoid overlap of the orthographic projections of the first branch 22 and the branch electrode 62 on the substrate 10.

[0064] like Figure 7 As shown, Figure 7The design of an eight-domain data line within a pixel region is shown. The liquid crystal display panel 100 also includes a shared electrode 70 extending along the second direction Y, the shared electrode 70 being used for leakage current. The orthographic projection of the shared electrode 70 onto the substrate 10 partially overlaps with the orthographic projection of the second main electrode 612 of the pixel electrode 60 onto the substrate 10, i.e., the shared electrode 70 passes through the pixel region 101. Within the same pixel region 101, the first main branch 21 and the support portion 23 divide the plurality of first branches 22 into eight domains, and the shared electrode 70 disconnects the first branches 22 on both sides of the shared electrode 70.

[0065] The data line 20 is disposed on the same layer as the shared electrode 70, which can be formed using a second metal layer. The design of the eight-domain data line is similar to that of the four-domain design; other descriptions can be found elsewhere. Figures 1 to 6 The description of the embodiments in the document.

[0066] In summary, the liquid crystal display panel provided in this application embodiment includes: a substrate 10; multiple data lines 20 located on the substrate 10, arranged along a first direction X and extending along a second direction Y, wherein the first direction X and the second direction Y intersect; multiple scan lines 30 located on the substrate 10, arranged along the second direction Y and extending along the first direction X; and multiple pixel regions 101, defined by the data lines 20 and the scan lines 30 interleaving each other; wherein, the data lines 20 include a first trunk 21 extending along the second direction Y and multiple first branches 22 located in the corresponding pixel regions 101, the multiple first branches 22 extending in multiple directions, and at least a portion of the first branches 22 are connected to the first trunk 21. By designing the data lines 20 to have a first trunk 21 and first branches 22, the cross-sectional area of ​​the data lines 20 can be increased, the impedance of the data lines 20 can be reduced, thereby improving the charging poor condition of the far-end pixel electrode 60.

[0067] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0068] The liquid crystal display panel provided in the embodiments of the present invention has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of the present invention. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A liquid crystal display panel, characterized in that, include: Substrate; Multiple data lines are located on the substrate, arranged along a first direction and extending along a second direction, wherein the first direction and the second direction intersect. Multiple scan lines are located on the substrate and disposed on a different layer from the data lines. The multiple scan lines are arranged along the second direction and extend along the first direction. The data lines and the scan lines intersect to define multiple pixel regions; wherein... The data line includes a first trunk extending along the second direction and a plurality of first branches located in the corresponding pixel regions, wherein the first branches are connected to the first trunk. The data line includes multiple domains, with multiple first branches within the same domain extending in the same direction, and first branches between adjacent domains extending in different directions; the data line also includes multiple support portions extending in a direction different from the second direction, the first trunk and the support portions intersect, and the ends of some first branches away from the first trunk are connected to the support portions, the first trunk and the support portions dividing the multiple first branches into the multiple domains.

2. The liquid crystal display panel according to claim 1, characterized in that, The liquid crystal display panel further includes a plurality of pixel electrodes disposed on the substrate. The pixel electrodes are disposed on a different layer from the data lines. The pixel electrodes are located in the corresponding pixel regions. The pixel electrodes include a main electrode and a plurality of branch electrodes extending from the main electrode in different directions. The orthographic projection of the first branch on the substrate does not overlap with the orthographic projection of the branch electrode on the substrate.

3. The liquid crystal display panel according to claim 2, characterized in that, The width of the first branch is less than or equal to the gap between two adjacent branch electrodes.

4. The liquid crystal display panel according to claim 2, characterized in that, The liquid crystal display panel also includes a plurality of common signal lines disposed on the substrate. The common signal lines are disposed on a different layer from the data lines. The common signal lines extend along the second direction, and at least a portion of the orthogonal projection of the first branch on the substrate overlaps with the orthogonal projection of the common signal lines on the substrate.

5. The liquid crystal display panel according to claim 2, characterized in that, The ends of the plurality of first branches of the data line that are away from the first trunk are interconnected.

6. The liquid crystal display panel according to claim 2, characterized in that, The main electrode of the pixel electrode includes a first main electrode extending along the first direction and a second main electrode extending along the second direction. The first main electrode and the second main electrode intersect and divide the branch electrode into multiple domains. The support portion of the data line extends along the first direction, and the orthographic projection of the support portion on the substrate is located within the orthographic projection of the first main electrode on the substrate.

7. The liquid crystal display panel according to claim 6, characterized in that, The first trunk includes a first side and a second side opposite to each other. A portion of the first branch extends from the first side to the pixel region on the same side as the first side, and another portion of the first branch extends from the second side to the pixel region on the same side as the second side.

8. The liquid crystal display panel according to claim 7, characterized in that, Within the same pixel area, a portion of the first branch of a data line is provided on one side of the second main electrode, and a portion of the first branch of another data line is provided on the opposite side, wherein the first branches on the two opposite sides of the second main electrode are disconnected at the second main electrode.

9. The liquid crystal display panel according to claim 8, characterized in that, Within the same pixel region, the number of domains of the data line is the same as the number of domains of the pixel electrode.

10. The liquid crystal display panel according to claim 9, characterized in that, Within the same pixel region, the extension direction of the first branch within a domain of the data line is the same as the extension direction of the branch electrode within the corresponding domain of the pixel electrode.

11. The liquid crystal display panel according to claim 9, characterized in that, The liquid crystal display panel further includes a shared electrode extending along the second direction, wherein the orthographic projection of the shared electrode on the substrate overlaps with the orthographic projection of the second main electrode of the pixel electrode on the substrate. Within the same pixel region, the first trunk and the support portion divide the plurality of first branches into eight domains, and the first branches on both sides of the shared electrode are disconnected at the shared electrode.

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