A display panel and its manufacturing method

Abstract

This application provides a display panel, a manufacturing method thereof, and a display device. The display panel includes a driving substrate and color resists. The driving substrate includes a first conductive layer, a first insulating layer, and a first metal layer stacked along a first direction. The driving substrate includes a first driving region and a second driving region. The first driving region has a first opening that penetrates the first insulating layer. The first conductive layer is electrically connected to the first metal layer through the first opening. The conductivity of the first conductive layer is lower than that of the first metal layer. The display panel also includes color resists arranged in an array. The color resists include blue sub-color resists and green sub-color resists. The blue sub-color resists are correspondingly disposed and overlap with the first driving region, and the green sub-color resists are correspondingly disposed and overlap with the second driving region. Only one first opening is provided for each color resist. By opening the metal layer in the region with low brightness contribution, the uniformity of the common voltage within the display panel can be improved, and the overall brightness is higher, resulting in a good display effect.

Description

Technical Field

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

[0002] In the current display panel technology field, there is a lack of effective panel heating solutions. Furthermore, in low-temperature environments, the performance of the display panel is affected by issues such as slower liquid crystal response times. External heating devices for the display panel suffer from poor heat conduction, making it difficult to achieve uniform heating of the entire panel. Additionally, a significant amount of heat is transferred to other parts of the display device, impacting the heat dissipation performance of components that do not require heating.

[0003] To address this issue, some products utilize transparent conductive materials such as indium tin oxide (ITO) to fabricate heating traces arranged within the display panel. However, since the common electrode and pixel electrode in the display panel are also made of indium tin oxide and are arranged extensively within the display panel, an additional layer of indium tin oxide and an insulating layer are required to prevent the heating traces from overlapping and short-circuiting with the common electrode or pixel electrode, which leads to increased cost and thickness.

[0004] Meanwhile, since an independent indium tin oxide film layer needs to be made, and this film layer needs to be patterned to meet the requirements of uniform heating within the panel or heating of specific areas, an additional mask layer and additional exposure steps are required in the process, which further complicates the process and increases costs. Summary of the Invention

[0005] In view of this, embodiments of the present invention provide a display panel and a method for manufacturing the same, to solve the problems in the prior art where setting a heating film layer leads to increased thickness, complex manufacturing process, and excessively high cost.

[0006] First, this embodiment of the invention provides a display panel, including a substrate and a first metal layer and a second metal layer stacked on the substrate along the thickness direction of the display panel. The first metal layer includes a first metal line, and the second metal layer includes a second metal line. The first metal line extends along a first direction, and the second metal line extends along a second direction. The display panel is characterized in that it further includes a first region and a second region surrounding the first region. In the first region, the first direction and the second direction intersect.

[0007] At least one of the first metal layer and the second metal layer includes a third metal wire, the third metal wire including at least two first segments extending along a first direction and at least two second segments extending along a second direction, and two adjacent first segments are connected by a second segment.

[0008] The display panel also includes a light-shielding layer, and the third metal line and the light-shielding layer are stacked along the thickness direction of the display panel, with the light-shielding layer and the third metal line at least partially overlapping.

[0009] The display panel also includes a heating control component, and a third metal wire is electrically connected to the heating control component.

[0010] Secondly, embodiments of the present invention also provide a method for manufacturing a display panel, comprising: providing a substrate; forming a first metal layer on the substrate, and forming a first metal line and a third metal line by a patterning process; preparing a first insulating layer on the first metal layer; forming a second metal layer on the first insulating layer, and forming a second metal line by a patterning process.

[0011] Furthermore, this embodiment of the invention also provides a method for manufacturing a display panel, comprising: providing a substrate; forming a first metal layer on the substrate and forming a first metal line by a patterning process; preparing a first insulating layer on the first metal layer; forming a second metal layer on the first insulating layer and forming a second metal line and a third metal line by a patterning process.

[0012] Compared with the prior art, the display panel, driving method, and display device provided in the embodiments of the present invention have the following technical effects:

[0013] By incorporating a third metal line in either the first or second metal layer, and electrically connecting this third metal line to the heating control component, the entire panel can be heated via this third metal trace without requiring additional indium tin oxide (ITO) films or other layers, thus reducing panel thickness compared to existing technologies. Furthermore, the third metal trace, along with at least one of the traces in the first and second metal layers, can be fabricated in the same patterning process, simplifying the overall manufacturing process and reducing costs. Additionally, by including a first segment extending along a first direction and a second segment extending along a second direction within the third metal trace, the bending mechanism improves the uniformity of heating within the panel. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of a first substrate provided in an embodiment of the present invention;

[0017] Figure 3 yes Figure 2 A magnified view of a portion of region A in the middle;

[0018] Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure along the BB direction;

[0019] Figure 5 yes Figure 2 A magnified view of a portion of region C in the middle;

[0020] Figure 6 yes Figure 5 A schematic diagram of the cross-sectional structure along the DD direction;

[0021] Figure 7 yes Figure 2 A magnified view of a portion of region E in the middle;

[0022] Figure 8 yes Figure 2 A magnified view of a portion of region F in the middle;

[0023] Figure 9 yes Figure 2 A magnified view of a portion of region G in the middle;

[0024] Figure 10 This is a flowchart of a method for manufacturing a display panel according to an embodiment of the present invention;

[0025] Figure 11 This is a flowchart of another method for manufacturing a display panel provided in an embodiment of the present invention;

[0026] Figure 12 This is a schematic diagram of the first intermediate process for manufacturing a display panel 10 according to an embodiment of the present invention;

[0027] Figure 13 This is a schematic diagram of the second intermediate process for manufacturing a display panel 10 according to an embodiment of the present invention;

[0028] Figure 14 This is a schematic diagram of another first intermediate process for manufacturing the display panel 10 provided in an embodiment of the present invention;

[0029] Figure 15 This is a schematic diagram of another intermediate process for manufacturing the display panel 10 provided in an embodiment of the present invention;

[0030] Figure 16 yes Figure 2 A magnified view of a portion of region H in the middle;

[0031] Figure 17This is a schematic diagram of the relative positions of a first substrate and a second substrate provided in an embodiment of the present invention;

[0032] Figure 18 yes Figure 17 A magnified view of a portion of region I;

[0033] Figure 19 This is a cross-sectional schematic diagram of a display panel 10 provided in an embodiment of the present invention.

[0034] 10 - Display panel; 100 - First substrate; 110 - First metal layer; 111 - First metal line; 112 - Third metal line; 1121 - First segment; 1122 - Second segment; 1123 - Third segment; 11231 - First section; 11232 - Second section; 113 - First electrode; 120 - Second metal layer; 121 - Second metal line; 122 - Second electrode; 123 - Third electrode; 1231 - First part; 1232 - Second part; 124 - Third metal line; 1241 - First segment; 1242 - Second segment; 130 - Semiconductor layer; 1 31 - Semiconductor region; 1311 - First semiconductor block; 1312 - Third semiconductor block; 1313 - Second semiconductor block; 140 - First transparent electrode layer; 150 - First insulating layer; 160 - Second insulating layer; 170 - Second transparent electrode layer; 180 - First sub-pixel; 190 - Second sub-pixel; 200 - Second substrate; 210 - Light-shielding layer; 221 - Blue color resist; 222 - Green color resist; 223 - Red color resist; 300 - Liquid crystal; 400 - Display control component; 500 - Heating control component; 600 - First region; 700 - Second region. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0037] Figure 1 This is a schematic diagram of a display panel 10 structure provided in an embodiment of the present invention. Figure 2This is a schematic diagram of the structure of a first substrate 100 provided in an embodiment of the present invention. Figure 3 yes Figure 2 Please refer to the enlarged view of region A in the middle. Figure 1-3 The display panel 10 includes a liquid crystal layer 300, a first substrate 100, and a second substrate 200. The first substrate 100, the liquid crystal layer 300, and the second substrate 200 are stacked sequentially in a third direction, which is the thickness direction of the display panel 10. Electrodes are disposed on the first substrate 100. The rotation of liquid crystal molecules in the liquid crystal layer 300 is controlled by the electric field formed by the electrodes on the first substrate 100, thereby realizing the basic display function of the display panel 10.

[0038] It is understood that in other alternative embodiments, electrodes can also be provided on the first substrate 100 and the second substrate 200 respectively to form an electric field between the first substrate 100 and the second substrate 200, thereby realizing the basic display function of the display panel 10.

[0039] Figure 4 yes Figure 3 Please refer to the schematic diagram of the cross-sectional structure along the BB direction. Figure 1-4 In this embodiment, the first substrate 100 includes a substrate and a first metal layer 110, a first insulating layer 150, a semiconductor layer 130, a second metal layer 120, a second insulating layer 160, a second transparent electrode layer 170, a third insulating layer (not shown), a first transparent electrode layer 140, and an alignment layer (not shown) stacked on the substrate along the thickness direction of the display panel 10. The second metal layer 120 is partially electrically connected to the first transparent electrode layer 140 and partially electrically connected to the second transparent electrode layer 170. The second metal layer 120 is connected to the semiconductor layer 130. The first metal layer 110 controls the working state of the first transparent electrode layer 140 and the second transparent electrode layer 170 by controlling the conduction state of the semiconductor layer 130. Through the cooperation of the first transparent electrode layer 140 and the second transparent electrode layer 170, an electric field is formed between the first substrate 100 and the second substrate 200, controlling the rotation of liquid crystal molecules in the liquid crystal layer 300.

[0040] It should be noted that, in Figure 3 The second transparent electrode and part of the first transparent electrode are not shown in the figure. This does not mean that the second transparent electrode and the first transparent electrode do not exist at the corresponding positions, but is to show the other structures in the figure more clearly.

[0041] It is understood that, in other alternative embodiments, the first transparent electrode layer 140 and the second transparent electrode layer 170 may also be powered by other metal layers.

[0042] It should be noted that, in this embodiment, the first metal layer 110 includes a first metal line 111, and the second metal layer 120 includes a second metal line 121. The first metal line 111 extends along a first direction, and the second metal line 121 extends along a second direction. The display panel 10 also includes a first area 600 and a second area 700 surrounding the first area 600. In the first area 600, the first direction and the second direction intersect, and the first metal line 111 and the second metal line 121 are intersected to define the pixel units arranged in an array.

[0043] In this embodiment, the display panel 10 further includes a display control component 400, which is disposed on the first substrate 100. The display control component 400 is connected to a first metal line 111 and a second metal line 121, respectively. The first metal line 111 is a scan line and the second metal line 121 is a data line, so that the first metal line 111 transmits scan signals and the second metal line 121 transmits data signals, thereby achieving control over the display status of each area in the display panel 10.

[0044] Optionally, in this embodiment, the display panel 10 further includes a heating control component 500. The first metal layer 110 includes a third segment 1123. The heating control component 500 is connected to the third metal line 112. The heating control component 500 is used to provide a heating signal to the third metal line 112 to heat the display panel 10 through the third metal line 112, which is disposed in the same layer as the first metal line 111. Since the third metal line 112 is disposed in the same layer as the first metal line 111, it is not necessary to separately set a film layer for setting the line with heating function. The overall thickness of the display panel 10 does not need to be increased, nor is it necessary to add an exposure process and a separate mask for an additional patterned film layer. This is beneficial for the thinning of the display panel 10, and the process is simple and inexpensive.

[0045] In this embodiment, the third metal line 112 is disposed on the first metal layer 110, and one third metal line 112 is disposed between two adjacent first metal lines 111, thereby avoiding short circuit between the third metal line 112 and the first metal line 111, and ensuring that the display signal and the heating signal can be transmitted and received independently.

[0046] Optionally, in this embodiment, the third metal line 112 includes at least two first segments 1121 extending along a first direction and at least two second segments 1122 extending along a second direction. Two adjacent first segments 1121 are connected by a second segment 1122. By using the first segments 1121 and second segments 1122 extending along different directions, the third metal line 112 is bent, improving heating uniformity. Simultaneously, by placing the third metal line 112 on opposite sides of a sub-pixel along the second direction in different sub-pixels arranged along the first direction, the third metal line 112 is not only adjacent to one first metal line 111, but is adjacent to one of the two first metal lines 111 defining that sub-pixel in different sub-pixels. This avoids the parasitic capacitance between the third metal line 112 and a portion of the first metal lines 111 being much larger than the parasitic capacitance between the third metal line 112 and other first metal lines 111, balancing the load between different first metal lines and improving display uniformity.

[0047] Figure 19 This is a cross-sectional schematic diagram of a display panel 10 provided in an embodiment of the present invention. Please refer to it for further details. Figure 1-4 and Figure 19 It should be noted that the display panel 10 also includes a light-shielding layer 210. The light-shielding layer 210 is disposed on the side of the second panel facing the liquid crystal layer 300. The third metal line 112 and the light-shielding layer 210 are stacked along the thickness direction of the display panel 10. The light-shielding layer 210 and the third metal line 112 overlap so that the third metal line 112 is blocked by the light-shielding layer 210, so as to prevent the human eye from directly observing the third metal line 112 from one side of the second substrate 200, which would cause poor visual perception.

[0048] It is understood that in this embodiment, the light-shielding layer 210 is also stacked and overlapped with the first metal line 111 and the second metal line 121 along the thickness direction of the display panel 10, so as to block the first metal line 111 and the second metal line 121 by the light-shielding layer 210, preventing the human eye from directly observing the first metal line 111 and the second metal line 121 from one side of the second panel, thus avoiding poor visual perception.

[0049] It should be noted that in this embodiment, by selecting the third metal wire 112 as the heating wire, better heating efficiency can be obtained compared to using indium tin oxide as the heating wire. After applying a heating electrical signal to the third metal wire 112, it can generate heat quickly, improving the heating speed of the liquid crystal. When heating is not required, the third metal wire 112 also provides better heat dissipation. Based on this scheme, since the heating speed is faster with a metal heating wire, to avoid the area with the third metal wire 112 rising in temperature too quickly and the area without the third metal wire 112 rising in temperature too slowly, resulting in excessive temperature differences between different areas and large differences in liquid crystal performance at different locations, leading to display defects, the third metal wire 112 in this embodiment includes a first segment 1121 extending along a first direction and a second segment 1122 extending along a second direction. The bending shape improves the uniformity of the distribution of the third metal wire 112 in the panel, thereby improving the uniformity of heating.

[0050] Furthermore, due to the use of a bent third metal line 112, in different sub-pixels, the third metal line 112 will be adjacent to different first metal lines 111, and the overlap position of the third metal line 112 with different second metal lines 121 is also located at different positions along the second direction. The overlap position of the third metal line 112 with different first transparent electrode layers 140 and second transparent electrode layers 170 is also located at different positions along the second direction. This improves the parasitic capacitance distribution between the third metal line 112 and the first metal line 111, the second metal line 121, the first transparent electrode layer 140 and the second transparent electrode layer 170, avoids the third metal line 112 from affecting the display signal during the heating process, and thus improves the display effect.

[0051] It should be noted that, since a third metal wire 112 is used as the heating wire, and metal materials can produce reflections, a light-shielding layer 210 is provided above the metal wire to prevent reflections and improve the display effect. Furthermore, in this embodiment, the light-shielding layer 210 includes metal particles or graphite particles, thereby improving the thermal conductivity of the light-shielding layer and facilitating further improvement of the heating effect through the light-shielding layer 210 overlapping with the third metal wire 112.

[0052] Figure 5 yes Figure 2 A magnified view of a portion of region C. Figure 6 yes Figure 5 Please refer to the schematic diagram of the cross-sectional structure along the DD direction. Figure 1-2 and Figure 5-6In this embodiment, the third metal line 124 can be disposed on the second metal layer 120. The heating control component 500 is connected to the third metal line 124 and is used to provide a heating signal to the third metal line 124 so as to heat the display panel 10 through the third metal line 124 disposed on the same layer as the second metal line 121. Since the third metal line 124 is disposed on the same layer as the second metal line 121, there is no need to separately set a film layer for setting the line with heating function. The overall thickness of the display panel 10 does not need to be increased, nor is it necessary to add an exposure process and a separate mask for an additional patterned film layer. This also helps to make the display panel 10 thinner and lighter, and the process is simple and inexpensive.

[0053] In this embodiment, the third metal line 124 is disposed on the second metal layer 120, and one third metal line 124 is disposed between two adjacent second metal lines 121, thereby avoiding short circuit between the third metal line 124 and the second metal line 121, and ensuring that the display signal and the heating signal can be transmitted and received independently.

[0054] Please refer to the reference. Figure 1-6 It is understood that in other alternative embodiments, the third metal line 124 can also be simultaneously disposed on both the first metal layer 110 and the second metal layer 120. The heating control component 500 is connected to the third metal line 124 and is used to provide a heating signal to the third metal line 124 to heat the display panel 10 through the third metal line 124 disposed on the same layer as the first metal line 111 and the third metal line 121. Since the third metal line 124 is disposed on the same layer as the first metal line 111 and the second metal line 121, there is no need to separately set a film layer for setting the heating line. The overall thickness of the display panel 10 does not need to be increased, nor is it necessary to add an exposure process and a separate mask for an additional patterned film layer. This also helps to make the display panel 10 thinner and lighter, and the process is simple and inexpensive. At the same time, by setting two layers of heating metal lines, the heating speed and uniformity can be improved.

[0055] Please continue to refer to the reference. Figure 1-4Optionally, in this embodiment, within the first region 600, the first segment 1121 is positioned adjacent to the first metal line 111, and the first segment 1121 and the first metal line 111 have a minimum gap D1 along the second direction. The spacing between two adjacent first metal lines 111 is D2, where 0 < D1 ≤ 0.34D2. By positioning the first segment 1121 close to the first metal line 111, the distance between the first metal line 111 and the third metal line 112 is reduced. Since both the first metal line 111 and the third metal line 112 are blocked by the light-shielding layer 210, the area between the first metal line 111 and the third metal line 112 is also blocked. Therefore, minimizing the gap between the first metal line 111 and the third metal line 112 achieves the effect of reducing the area of ​​the light-shielding layer 210 and improving the light transmittance of the display panel 10.

[0056] Similarly, in this embodiment, within the first region 600, the second segment 1122 is positioned adjacent to the second metal line 121, with a minimum gap D3 between the second segment 1122 and the second metal line 121 along the first direction. The spacing between two adjacent second metal lines 121 is D4, where 0 < D3 ≤ 0.34D4. By placing the second segment 1122 close to the second metal line 121, the distance between the second metal line 121 and the third metal line 112 is reduced. Using a light-shielding layer 210 that is integrated within a sub-pixel to simultaneously block the second segment 1122 and the second metal line 121 within the same sub-pixel simplifies the pattern design of the light-shielding layer 210. However, since both the second metal line 121 and the third metal line 112 are blocked by the light-shielding layer 210, the area between the second metal line 121 and the third metal line 112 will also be blocked. Therefore, the gap between the second metal line 121 and the third metal line 112 should be minimized as much as possible, while at the same time reducing the area of ​​the light-shielding layer 210 and increasing the light transmittance of the display panel 10. Furthermore, since there will be a certain deviation during the alignment of the first substrate 100 and the second substrate 200, if the light-shielding layer 210 that blocks the second segment 1122 and the second metal line 121 is set separately, then in order to ensure complete coverage of the second segment 1122 and the second metal line 121, redundant areas need to be designed for the light-shielding layer 210 separately. In this embodiment, by minimizing the gap between the second metal line 121 and the third metal line 112, the blocking can be achieved by the light-shielding layer 210 that is connected as a whole. The second metal line 121 and the third metal line 112 can be regarded as a whole that needs to be blocked, and only one redundant area needs to be designed, which further reduces the area of ​​the light-shielding layer 210 and improves the light transmittance of the display panel 10.

[0057] Optionally, in this embodiment, within the first region 600, the first metal line 111 and the second metal line 121 intersect to define a sub-pixel. The sub-pixel includes a portion of the first metal line 111 that defines the sub-pixel corresponding to the sub-pixel, and a portion of the second metal line 121 that defines the sub-pixel corresponding to the sub-pixel. At least one sub-pixel includes at least one first segment 1121 and at least one second segment 1122. By setting the first segment 1121 and the second segment 1122 in the sub-pixel, the bending arrangement of the third metal line 112 is achieved, thereby improving the uniformity of heating.

[0058] Because of the use of a bent third metal line 112, in different sub-pixels, the first segment 1121 and the second segment 1122 will be adjacent to different first metal lines 111 and 121, respectively. The overlap positions of the third metal line 112 with different second metal lines 121 are also located at different positions along the second direction. Similarly, the overlap positions of the third metal line 112 with different first transparent electrode layers 140 and 170 are also located at different positions along the second direction. This improves the parasitic capacitance distribution between the third metal line 112 and the first metal lines 111, 121, 140, and 170, especially the capacitance between the third metal line 112 and the first metal line 111 disposed in the same layer. This also prevents the third metal line 112 from affecting the display signal during the heating process, thereby improving the display effect.

[0059] Optionally, in this embodiment, the third metal line 112 is disposed on the first metal layer 110. In the first sub-pixel 180 and the second sub-pixel 190 adjacent to each other along the first direction, the first segment 1121 in the first sub-pixel 180 is close to the first metal line 111 corresponding to the first sub-pixel 180, and the first segment 1121 in the second sub-pixel 190 is far away from the first metal line 111 corresponding to the first sub-pixel 180. By disposing the first segments 1121 in the adjacent sub-pixels far away from each other, the distribution area of ​​the third metal line 112 on the first substrate 100 is increased, and the uniformity of heating is improved.

[0060] It is understood that in other alternative embodiments, in the first sub-pixel 180 and the second sub-pixel 190 adjacent along the first direction, the first segment 1121 in the first sub-pixel 180 is close to the first metal line 111 corresponding to the first sub-pixel 180, and the first segment 1121 in the second sub-pixel 190 is close to the first metal line 111 corresponding to the first sub-pixel 180, so as to simplify the routing design of the third metal line 112 in some areas and also simplify the process difficulty.

[0061] Similarly, it is understood that in other alternative embodiments, in the first sub-pixel 180 and the second sub-pixel 190 adjacent along the first direction, the first segment 1121 in the first sub-pixel 180 is far away from the first metal line 111 corresponding to the first sub-pixel 180, and the first segment 1121 in the second sub-pixel 190 is far away from the first metal line 111 corresponding to the first sub-pixel 180, so as to simplify the routing design of the third metal line 112 in some areas and also simplify the process difficulty.

[0062] Optionally, in this embodiment, in the first sub-pixel 180 and the second sub-pixel 190 adjacent in the first direction, the second segment 1122 in the first sub-pixel 180 is close to the second metal line 121 of the first sub-pixel 180, and the second segment 1122 in the second sub-pixel 190 is close to the second metal line 121 of the second sub-pixel 190. By arranging the second segment 1122 at intervals between different sub-pixels, the distribution of the third metal line 112 is improved, and the uniformity of heating is enhanced.

[0063] It is understood that in other alternative embodiments, the second segment 1122 in the first sub-pixel 180 is away from the second metal line 121 of the first sub-pixel 180, and the second segment 1122 in the second sub-pixel 190 is away from the second metal line 121 of the second sub-pixel 190. Similarly, by arranging the second segment 1122 at intervals between different sub-pixels, the distribution of the third metal line 112 is improved, and the uniformity of heating is enhanced.

[0064] Please refer to the reference. Figure 1-6 In this embodiment, the third metal line 124 is disposed on the second metal layer 120. In the first sub-pixel 180 and the second sub-pixel 190 adjacent to each other along the second direction, the second segment 1242 in the first sub-pixel 180 is close to the second metal line 121 corresponding to the first sub-pixel 180, and the second segment 1242 in the second sub-pixel 190 is far away from the second metal line 121 corresponding to the first sub-pixel 180. By distributing the second segments 1242 in adjacent sub-pixels far away from each other, the distribution area of ​​the third metal line 124 on the first substrate 100 is increased, and the uniformity of heating is improved.

[0065] It is understood that, in other alternative embodiments, in the first sub-pixel 180 and the second sub-pixel 190 adjacent along the second direction, the second segment 1242 in the first sub-pixel 180 is close to the second metal line 121 corresponding to the first sub-pixel 180, and the second segment 1242 in the second sub-pixel 190 is close to the second metal line 121 corresponding to the first sub-pixel 180, so as to simplify the routing design of the third metal line 124 in some areas and also simplify the process difficulty.

[0066] Similarly, it is understood that in other alternative embodiments, in the first sub-pixel 180 and the second sub-pixel 190 adjacent along the first direction, the second segment 1242 in the first sub-pixel 180 is far away from the first metal line 111 corresponding to the first sub-pixel 180, and the second segment 1242 in the second sub-pixel 190 is far away from the first metal line 111 corresponding to the first sub-pixel 180, so as to simplify the routing design of the third metal line 124 in some areas and also simplify the process difficulty.

[0067] Optionally, in this embodiment, among the adjacent first sub-pixels 180 and second sub-pixels 190 in the second direction, at least one first segment 1241 in the first sub-pixel 180 is away from the first metal line 111 of the first sub-pixel 180, and at least one first segment 1241 in the second sub-pixel 190 is away from the first metal line 111 of the second sub-pixel 190. By arranging the first segment 1241 at intervals between different sub-pixels, the distribution of the third metal line 124 is improved, and the uniformity of heating is enhanced.

[0068] It is understood that in other alternative embodiments, the first segment 1241 in the first sub-pixel 180 is close to the first metal line 111 of the first sub-pixel 180, and the first segment 1241 in the second sub-pixel 190 is close to the first metal line 111 of the second sub-pixel 190. Similarly, by arranging the first segment 1241 at intervals between different sub-pixels, the distribution of the third metal line 124 is improved, and the uniformity of heating is enhanced.

[0069] Figure 7 yes Figure 2 Please refer to the enlarged view of region E in the middle. Figure 1-2 and Figure 7 At least two first segments 1241 and at least one second segment 1242 are included in at least one sub-pixel, thereby achieving a better heating effect in the region by centrally arranging multiple first segments 1241 in at least some sub-pixels, so that the region has a higher density of third metal lines 124.

[0070] In this embodiment, some sub-pixels include two first segments 1241 and one second segment 1242, thereby increasing the density of the first segments 1241 while the two first segments 1241 can be respectively attached to the opposite sides of the sub-pixel, leaving an opening area at the center of the sub-pixel to avoid excessive blocking of light transmission.

[0071] It is understood that in other alternative embodiments, at least two second segments 1242 and at least one first segment 1241 may be included in at least one sub-pixel, thereby achieving a better heating effect in the region by centrally setting multiple second segments 1242 in at least some sub-pixels, so that the region has a higher density of third metal lines 124.

[0072] Optionally, in this embodiment, the display panel 10 includes a blue color resist, a red color resist, and a green color resist arranged sequentially along a first direction. The blue color resist overlaps with a sub-pixel comprising at least two first segments 1241 or at least two second segments 1242 in a third direction. Since setting more than one first segment 1241 or second segment 1242 in some sub-pixels would reduce the aperture ratio of that sub-pixel and affect brightness, more than one first segment 1241 or second segment 1242 is set at the corresponding location of the blue color resist that contributes less to the overall brightness, thereby better improving the overall brightness of the display panel 10.

[0073] It is understood that in other alternative embodiments, the blue, red, and green color resists may also be arranged sequentially along the second direction, or have other arrangement rules, without special restrictions.

[0074] Figure 8 yes Figure 2 Please refer to the enlarged view of the central F region. Figure 1 , Figure 2 and Figure 8 In this embodiment, at least two adjacent sub-pixels have one sub-pixel including a first segment 1121 and a second segment 1122, and the other sub-pixel including a first segment 1121. This reduces the number of bending structures in some sub-pixels, simplifies the wiring design and manufacturing process, and also reduces the density of the third metal line 124 in local areas, thus controlling the heating effect.

[0075] It is understood that in other alternative embodiments, one sub-pixel includes a first segment 1121 and a second segment 1122, and another sub-pixel includes a second segment 1122. Similarly, fewer bending structures can be set in some sub-pixels to simplify the wiring design and process difficulty, while also reducing the density of the third metal line 124 in local areas to control the heating effect.

[0076] Figure 17 This is a schematic diagram of the relative positions of a first substrate and a second substrate provided in an embodiment of the present invention. Figure 18 yes Figure 17 Please refer to the enlarged view of a portion of region I in the middle. Figure 1 , Figure 2 , Figure 8 , Figure 17-18Optionally, in this embodiment, the display panel 10 includes a blue color resist 221, a red color resist 223, and a green color resist 222 arranged sequentially along a first direction. The green color resist 222 overlaps with a sub-pixel including a first segment 1121 or a second segment 1122 in a third direction. Since setting fewer first segments 1121 or second segments 1122 in some sub-pixels would increase the aperture ratio of that sub-pixel and improve brightness, fewer first segments 1121 or second segments 1122 are set at the corresponding locations of the green color resist 222, which contributes more to the overall brightness, to better improve the overall brightness of the display panel 10.

[0077] It is understood that in other alternative embodiments, the blue color resist 221, the red color resist 223, and the green color resist 222 may also be arranged sequentially along the second direction, or have other arrangement rules, without special restrictions.

[0078] Please continue to refer to the reference. Figure 1-4 In this embodiment, within the first region 600, the sub-pixel includes a first electrode 113 disposed on the same layer as the first metal line 111, a second electrode 122 and a third electrode 123 disposed on the same layer as the second metal line 121, and a semiconductor region 131, wherein the semiconductor layer 130 is connected to the second electrode 122 and the third electrode 123 respectively, and the state of the semiconductor layer 130 is controlled by the first electrode 113, thereby controlling the conduction between the second electrode 122 and the third electrode 123.

[0079] Optionally, in this embodiment, within at least one sub-pixel, the third electrode 123, the semiconductor region 131, and the first electrode 113 partially overlap with the second segment 1122 in the second direction. Since the second segment 1122 is connected to the first segment 1121, and the second segment 1122 extends along the second direction rather than the first direction, when the second segment 1122 partially overlaps with the third electrode 123, the semiconductor region 131, and the first electrode 113 in the second direction, the second segment 1122 is adjacent to the third electrode 123, the semiconductor region 131, and the first electrode 113 in the first direction. That is, the second segment 1122 is adjacent to the second metal line 121 defining the sub-pixel in the first direction, thereby achieving the effect of placing the metal line close together and increasing the aperture ratio.

[0080] It is understood that in other alternative embodiments, the effect can be achieved by at least one of the second electrode 122, the third electrode 123, the semiconductor region 131 and the first electrode 113 overlapping at least partially with the second segment 1122 in the second direction. The specific overlap can be selected according to the difficulty of the wiring design and the process requirements, and there are no special restrictions.

[0081] Similarly, it is understood that in other alternative embodiments, within at least one sub-pixel, at least one of the first electrode 113 and the semiconductor region 131 at least partially overlaps with the first segment 1121 in the first direction. Since the second segment 1122 is connected to the first segment 1121, and the first segment 1121 extends along the first direction rather than the second direction, when at least one of the first electrode 113 and the semiconductor region 131 partially overlaps with the first segment 1121 in the first direction, the first segment 1121 is adjacent to at least one of the first electrode 113 and the semiconductor region 131 in the second direction. That is, the first segment 1121 is adjacent to the first metal line 111 defining the sub-pixel in the second direction, thereby achieving the effect of placing the metal line adjacently and increasing the aperture ratio.

[0082] Optionally, in this embodiment, the third electrode 123 includes a first part 1231 and a second part 1232. The first part 1231 overlaps with the first electrode 113 in a third direction, and the second part 1232 is offset from the first electrode 113 in a third direction. The first segment 1121 overlaps with the second part 1232 in a first direction. Since the third electrode 123 partially protrudes from the first electrode 113 to connect to the pixel electrode, by overlapping the first segment 1121 with the protruding second part 1232 in the first direction, the first segment 1121 can fit more closely to the first metal line 111, further improving the aperture ratio.

[0083] It is understood that in other alternative embodiments, the second segment 1122 may be arranged to overlap with the second part 1232 in the second direction. The second segment 1122 may be arranged to overlap with the protruding second part 1232 in the second direction, so that the second segment 1122 can fit more closely to the second metal wire 121 and further improve the opening ratio.

[0084] Optionally, in this embodiment, within at least one sub-pixel, at least one of the first electrode 113 and the semiconductor region 131 at least partially overlaps with the first segment 1121 in a first direction, and at least one of the second electrode 122, the third electrode 123, the semiconductor region 131, and the first electrode 113 at least partially overlaps with the second segment 1122 in a second direction. By simultaneously setting the first segment 1121 adjacent to the first metal line 111 and the second segment 1122 adjacent to the second metal line 121, the space occupied between the metal lines is minimized, and the aperture ratio is improved.

[0085] The third metal line 112 includes a third segment 1123. One end of the third segment 1123 is connected to the first segment 1121, and the other end is connected to the second segment 1122. Since the third segment 1123 connects the first segment 1121 and the second segment 1122, and the first segment 1121 and the second segment 1122 are respectively attached to the first metal line 111 and the second metal line 121, a first electrode 113, a second electrode 122, a third electrode 123 and a semiconductor layer 130 are provided at the intersection of the first metal line 111 and the second metal line 121. Therefore, the third segment 1123 is arranged around the contour formed by the first electrode 113, the second electrode 122, the third electrode 123 and the semiconductor layer 130, and can have a multi-segment zigzag shape.

[0086] Figure 16 yes Figure 2 Please refer to the enlarged view of region H in the middle. Figure 1-4 and Figure 16 It is understood that, in other alternative embodiments, the third segment 1123 is arranged around the contour formed by the first electrode 113, the second electrode 122, the third electrode 123 and the semiconductor layer 130. Its shape can be arc-shaped or a combination of arc-shaped and polygonal shape, so as to adjust the shape of the third segment 1123 according to the specific shape of the contour and reduce the impact on the aperture ratio.

[0087] Optionally, in this embodiment, the third segment 1123 includes a first section 11231 and a second section 11232. One end of the first section 11231 is connected to the second segment 1122, and the other end is connected to the second section 11232. The end of the second section 11232 away from the first section 11231 is connected to the first segment 1121. The line connecting the two ends of at least one of the first section 11231 and the second section 11232 intersects both the first direction and the second direction. By setting a third segment 1123 whose partial extension direction intersects both the first direction and the second direction, the routing of the third metal line 112 at the transistor structure is simplified in the form of inclined or curved routing, avoiding the design difficulties and breakage risks caused by too many bent line segments.

[0088] Please refer to the reference. Figure 1-2 and Figure 5-8 In this embodiment, the semiconductor region 131 is disposed in a different layer from the second electrode 122 and the third electrode 123. The semiconductor region 131 includes a first semiconductor block 1311, a second semiconductor block 1313, and a third semiconductor block 1312. The first semiconductor block 1311 overlaps with the second electrode 122, the second semiconductor block 1313 overlaps with the third electrode 123, and the third semiconductor block 1312 connects the first semiconductor block 1311 and the second semiconductor block 1313. The third metal line 124 is disposed away from the third semiconductor block 1312.

[0089] Figure 7 yes Figure 2 A magnified view of a portion of region E in the center. Please refer to the reference. Figure 1-2 and Figure 5-7 Specifically, in Figure 7 In the illustrated embodiment, the third metal line 124 is disposed on the second metal layer 120. In two adjacent sub-pixels along the first direction, the second metal line 121 and the third semiconductor block 1312 in the first sub-pixel are respectively disposed on opposite sides along the first direction. The third metal line 124 in the first sub-pixel is disposed close to the second metal line 121 in the sub-pixel and away from the third semiconductor block 1312 in the first sub-pixel. The third semiconductor block 1312 in the second sub-pixel and the third metal line in the first sub-pixel are respectively disposed on opposite sides of the second metal line 121 in the first sub-pixel.

[0090] Since the performance of the third semiconductor block 1312 has a significant impact on the display effect when the display panel 10 is working, and the third metal line 124 generates a certain electric field around it when it is working, which may affect the performance of the third semiconductor and cause its performance fluctuations. In addition, the performance of semiconductor materials also changes when the temperature changes, and the temperature change is more obvious the closer to the third metal line 124. Therefore, within the same sub-pixel, the third metal line 124 and the third semiconductor block 1312 are respectively disposed on both sides of the sub-pixel, and in adjacent sub-pixels, the third metal line 124 and the third semiconductor block 1312 are respectively disposed on both sides of at least one second metal line 121. This reduces the impact of electric field and temperature changes on semiconductor performance in each sub-pixel, thereby improving the stability of the display.

[0091] It should be noted that, in the sub-pixel division method adopted in this embodiment, in the first sub-pixel and the second sub-pixel arranged adjacent to each other along the first direction, the third electrode 123 and the third semiconductor block 1312 in the second sub-pixel together form a transistor with the second electrode 122 in the first sub-pixel. It is understood that different sub-pixel division methods may be adopted in other optional embodiments.

[0092] It should be noted that, in this embodiment, the third semiconductor block 1312 is the channel region of the corresponding transistor.

[0093] Optionally, in this embodiment, the third metal line 124 is disposed on the second metal layer 120. Within a sub-pixel, the second segment 1242 and the third electrode 123 are respectively disposed on opposite sides of the sub-pixel along the first direction. The third semiconductor block 1312 in the sub-pixel is disposed close to the third electrode 123, thereby specifically realizing that the third metal line 124 and the channel region of the sub-pixel are disposed far apart from each other.

[0094] Figure 9 yes Figure 6Please refer to the enlarged view of the central G region. Figure 12 , Figure 5-6 and Figure 9 In this embodiment, in two adjacent sub-pixels along the second direction, the third electrode 123 of one sub-pixel is located near the first second metal line 121, and the third metal line 124 of that sub-pixel is located near the second second metal line 121; the third electrode 123 of the other sub-pixel is located near the second second metal line 121, and the third metal line 124 of that sub-pixel is located near the first second metal line 121. The transistors are arranged in a Z-shape to match the zigzag third metal line 124. In adjacent sub-pixels along the second direction, the second segment 1242 is respectively located on opposite sides of the adjacent sub-pixels along the first direction. If the transistors are located on the same side of the second metal line 120, some transistors will be close to the third metal line 124, causing the transistors to operate in a way that affects the operation of the third metal line 124, resulting in display defects. If the third metal line 124 were to bypass the transistor traces and maintain a certain distance to avoid affecting the transistor's operation, a large-area light-shielding layer 210 would be needed to cover the third metal line 124, occupying a significant amount of sub-pixel area and reducing the aperture ratio. Therefore, in this solution, the transistors are arranged in a Z-shape to match the zigzag third metal line 124. This arrangement ensures that the third metal line 124 is relatively far from the channel region in the transistor while reducing the encroachment on the sub-pixel aperture area, further improving the display effect.

[0095] Figure 10 This is a flowchart of a method for manufacturing a display panel 10 according to an embodiment of the present invention. Please refer to it. Figure 1-4 and Figure 10 An embodiment of the present invention provides a method for manufacturing a display panel 10, comprising:

[0096] S101 provides a substrate.

[0097] In this embodiment, the substrate is a glass substrate.

[0098] It is understood that in other alternative embodiments, the substrate may also be made of materials such as polyimide substrates, and no particular limitation is made here.

[0099] Figure 12 This is a schematic diagram of the first intermediate process for manufacturing a display panel 10 according to an embodiment of the present invention. Please refer to it for details. Figure 1-4 10 and 12.

[0100] S102 forms a first metal layer 110 on a substrate and forms a first metal line 111 and a third metal line 112 through a patterning process.

[0101] It should be noted that in this embodiment, the patterning process uses a single mask to expose and form the first metal line 111 and the third metal line 112, instead of designing separate masks and exposure, development and etching processes for the first metal line 111 and the third metal line 112, thereby saving design and process costs.

[0102] S103 Prepare a first insulating layer 150 on the first metal layer 110.

[0103] Figure 13 This is a schematic diagram of the second intermediate process for manufacturing the display panel 10 according to an embodiment of the present invention. Please refer to it for details. Figure 1-4 12 and 12-13.

[0104] S104 forms a second metal layer 120 on the first insulating layer 150 and forms a second metal line 121 by a patterning process.

[0105] In this embodiment, the first metal line 111 is a scanning line, the second metal line 121 is a data line, and the third metal line 112 is a heating line. The first metal line 111 transmits scanning signals, the second metal line 121 transmits data signals, and the third metal line 112 is used to heat the display panel 10, thereby achieving the control and heating functions of the display status of each area in the display panel 10.

[0106] Figure 11 This is a flowchart of another method for manufacturing the display panel 10 provided in an embodiment of the present invention. Please refer to it. Figure 1-2 , Figure 5-6 and Figure 11 Another method for manufacturing the display panel 10 provided in this embodiment of the invention includes:

[0107] S201 provides a substrate.

[0108] In this embodiment, the substrate is a glass substrate.

[0109] It is understood that in other alternative embodiments, the substrate may also be made of materials such as polyimide substrates, and no particular limitation is made here.

[0110] Figure 14 This is a schematic diagram of another intermediate process for manufacturing the display panel 10 according to an embodiment of the present invention. Please refer to the diagram for details. Figure 1-2 , Figure 5-6 , Figure 11 and Figure 14 .

[0111] S202 forms a first metal layer 110 on the substrate and forms a first metal line 111 through a patterning process.

[0112] S203 prepares a first insulating layer 150 on the first metal layer 110.

[0113] Figure 15 This is a schematic diagram of another intermediate process for manufacturing the display panel 10 according to an embodiment of the present invention. Please refer to the diagram for details. Figure 1-2 , Figure 5-6 , Figure 11 , Figure 14-15 .

[0114] S204 forms a second metal layer 120 on the first insulating layer 150, and forms a second metal line 121 and a third metal line 124 by a patterning process.

[0115] In this embodiment, the first metal line 111 is a scanning line, the second metal line 121 is a data line, and the third metal line 124 is a heating line. The first metal line 111 transmits scanning signals, the second metal line 121 transmits data signals, and the third metal line 124 is used to heat the display panel 10, thereby achieving the control and heating functions of the display status of each area in the display panel 10.

[0116] It should be noted that in this embodiment, the patterning process uses a single mask for exposure to form the second metal line 121 and the third metal line 124, instead of designing separate masks and exposure, development and etching processes for the second metal line 121 and the third metal line 124, thereby saving design and process costs.

[0117] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, comprising a substrate, a first metal layer and a second metal layer stacked along a thickness direction of the display panel on the substrate, the first metal layer comprising first metal lines, the second metal layer comprising second metal lines, the first metal lines extending along a first direction, the second metal lines extending along a second direction, characterized in that, The display panel further comprises a first area and a second area surrounding the first area, in the first area, the first direction intersects the second direction; At least one of the first metal layer and the second metal layer comprises a third metal line, the third metal line comprises at least two first segments extending along the first direction and at least two second segments extending along the second direction, two adjacent first segments are connected by one second segment; The display panel further comprises a light shielding layer, the third metal line and the light shielding layer are stacked along the thickness direction of the display panel, and the light shielding layer at least partially overlaps the third metal line; The display panel further comprises a heating control component, and the third metal line is electrically connected with the heating control component; In the first area, the first metal line and the second metal line cross to define a sub-pixel; At least one of the sub-pixels comprises at least two first segments and at least one second segment, or at least one of the sub-pixels comprises at least two second segments and at least one first segment; The display panel comprises blue color filters, red color filters and green color filters arranged in sequence along the first direction or the second direction, and the blue color filter overlaps the sub-pixel comprising at least two first segments or at least two second segments in the third direction; Or, In two adjacent sub-pixels, one of the sub-pixels comprises at least one first segment and at least one second segment, and the other sub-pixel only comprises one first segment or one second segment; The display panel comprises blue color filters, red color filters and green color filters arranged in sequence along the first direction or the second direction, and the green color filter overlaps the sub-pixel only comprising one first segment or one second segment in the third direction.

2. The display panel of claim 1, wherein, The display panel further comprises a liquid crystal layer, a first substrate and a second substrate, the first substrate, the liquid crystal layer and the second substrate are stacked in sequence in a third direction, and the third direction is the thickness direction of the display panel; The third metal layer is arranged on the side of the first substrate facing the liquid crystal layer, and the light shielding layer is arranged on the side of the second substrate facing the liquid crystal layer.

3. The display panel of claim 1, wherein, In the first area, the first segment is arranged adjacent to the first metal line, the first segment and the first metal line have a minimum gap D1 along the second direction, the distance between two adjacent first metal lines is D2, and 0 The second segment is arranged adjacent to the second metal line, the second segment and the second metal line have a minimum gap D3 along the first direction, the distance between two adjacent second metal lines is D4, and 0 4. The display panel of claim 1, wherein, The sub-pixel comprises a part of the first metal line corresponding to the sub-pixel and a part of the second metal line corresponding to the sub-pixel; The third metal line is arranged in the first metal layer, and at least one third metal line is arranged between two adjacent first metal lines; At least two of the sub-pixels adjacent along the first direction, in which the first segment is disposed close to the first metal line in one of the sub-pixels and is disposed away from the first metal line in the other sub-pixel.

5. The display panel of claim 1, wherein, The sub-pixels include a portion of the first metal line corresponding to the sub-pixel and a portion of the second metal line corresponding to the sub-pixel, and at least one of the sub-pixels includes at least one first segment and at least one second segment.

6. The display panel of claim 5, wherein, The third metal line is disposed in the first metal layer, and in the first sub-pixel and the second sub-pixel adjacent along the first direction, the first segment in the first sub-pixel is close to the first metal line corresponding to the first sub-pixel, and the first segment in the second sub-pixel is away from the first metal line corresponding to the first sub-pixel.

7. The display panel of claim 6, wherein, In the first sub-pixel and the second sub-pixel adjacent along the first direction, the second segment in the first sub-pixel is close to the second metal line of the first sub-pixel, and the second segment in the second sub-pixel is close to the second metal line of the second sub-pixel. Or the second segment in the first sub-pixel is away from the second metal line of the first sub-pixel, and the second segment in the second sub-pixel is away from the second metal line of the second sub-pixel.

8. The display panel of claim 5, wherein, The third metal line is disposed in the second metal layer, and in the first sub-pixel and the second sub-pixel adjacent along the second direction, the second segment in the first sub-pixel is close to the second metal line corresponding to the first sub-pixel, and the second segment in the second sub-pixel is away from the second metal line corresponding to the first sub-pixel.

9. The display panel of claim 8, wherein, In the first sub-pixel and the second sub-pixel adjacent along the second direction, the first segment in the first sub-pixel is away from the first metal line of the first sub-pixel, and the first segment in the second sub-pixel is away from the first metal line of the second sub-pixel. The first segment in the first sub-pixel is close to the first metal line of the first sub-pixel, and the first segment in the second sub-pixel is close to the first metal line of the second sub-pixel.

10. The display panel of claim 1, wherein, The sub-pixels include a portion of the first metal line corresponding to the sub-pixel and a portion of the second metal line corresponding to the sub-pixel, and at least one of the sub-pixels includes at least one first segment and at least one second segment. In at least one of the sub-pixels, at least one of the first electrode and the semiconductor region at least partially overlaps the first segment in the first direction. Or in at least one of the sub-pixels, at least one of the second electrode, the third electrode, the semiconductor region, and the first electrode at least partially overlaps the second segment in the second direction.

11. The display panel of claim 10, wherein, The third electrode includes a first portion and a second portion, the first portion is disposed in overlap with the first electrode in the third direction, and the second portion is disposed in overlap with the first electrode in the third direction, and the first segment overlaps the second portion in the first direction.

12. The display panel of claim 10, wherein, The third electrode comprises a first part and a second part, the first part is arranged to overlap the first electrode in the third direction, the second part is arranged to be staggered with the first electrode in the third direction, and the second segment overlaps the second part in the second direction.

13. The display panel of claim 1, wherein, The sub-pixel comprises a first electrode arranged in the same layer as the first metal line, a second electrode and a third electrode arranged in the same layer as the second metal line, and a semiconductor region; In at least one of the sub-pixels, at least one of the first electrode and the semiconductor region at least partially overlaps the first segment in the first direction, and at least one of the second electrode, the third electrode, the semiconductor region, and the first electrode at least partially overlaps the second segment in the second direction; The third metal line comprises a third segment, one end of the third segment is connected to the first segment, and the other end is connected to the second segment.

14. The display panel of claim 13, wherein, The third segment comprises a first section and a second section, one end of the first section is connected to the second segment, the other end is connected to the second section, and the other end of the second section is connected to the first segment; The line connecting the two ends of at least one of the first section and the second section intersects the first direction and the second direction at the same time.

15. The display panel of claim 1, wherein, The sub-pixel comprises a first electrode arranged in the same layer as the first metal line, a second electrode and a third electrode arranged in the same layer as the second metal line, and a semiconductor region; The semiconductor region is arranged in a different layer from the second electrode and the third electrode, and the semiconductor region comprises a first semiconductor block, a second semiconductor block, and a third semiconductor block, the first semiconductor block overlaps the second electrode, the second semiconductor block overlaps the third electrode, and the third semiconductor block connects the first semiconductor block and the second semiconductor block; The third metal line is arranged away from the third semiconductor block.

16. The display panel of claim 15, wherein, The third metal line is arranged in the second metal layer, and in one of the sub-pixels, the second segment is arranged close to the second metal line corresponding to the sub-pixel, and the third electrode is arranged away from the second metal line corresponding to the sub-pixel.

17. The display panel of claim 16, wherein, In two adjacent sub-pixels along the second direction, the third electrode in one of the sub-pixels is arranged adjacent to one of the second metal lines, and the third electrode in the other sub-pixel is arranged adjacent to the other second metal line.

18. The display panel of claim 1, wherein, The third metal line is arranged in the first metal layer, and one of the third metal lines is arranged between two adjacent first metal lines; Or the third metal line is arranged in the second metal layer, and one of the third metal lines is arranged between two adjacent second metal lines.

19. The display panel of claim 1, wherein, The third metal line is arranged between two first metal lines, and in the sub-pixels arranged along the first direction, the third metal line is arranged adjacent to one of the two first metal lines; Or, the third metal line is arranged between two second metal lines, and in the sub-pixels arranged along the second direction, the third metal line is arranged adjacent to one of the two second metal lines.

20. A method of making the display panel of any one of claims 1-19, wherein, Comprising: providing a substrate; forming the first metal layer on the substrate, forming the first metal line and the third metal line by a patterning process; preparing a first insulating layer on the first metal layer; forming a second metal layer on the first insulating layer, forming the second metal line by a patterning process.

21. A method of making the display panel of any one of claims 1-19, wherein, comprising: providing a substrate; forming the first metal layer on the substrate, forming the first metal line by a patterning process; preparing a first insulating layer on the first metal layer; forming a second metal layer on the first insulating layer, forming the second metal line and the third metal line by a patterning process.

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