Display panel and display device

Abstract

This disclosure provides a display panel and a display device. The display panel includes: a first substrate, comprising a first substrate, thin-film transistors, an organic planarization layer, a first metal layer, and a first transparent electrode layer. The first metal layer includes a first metal trace, a second metal trace, and a first metal connector. The first metal trace extends along a first direction, the second metal trace is disposed along a second direction, and a predetermined gap exists between the second metal trace and the first metal trace. The first metal connector is located within the predetermined gap, and both the second metal trace and the first metal trace are connected to the first metal connector. The orthographic projection of the first metal layer on the first substrate lies within the orthographic projection of the first transparent electrode layer on the first substrate. The second substrate includes a second substrate and a support pillar disposed on the second substrate. The orthographic projection of the support pillar on the first substrate lies within the orthographic projection of the first metal connector on the first substrate. The solution of this disclosure can avoid uneven display caused by touch.

Description

Technical Field

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

[0002] Liquid crystal displays (LCDs) may exhibit uneven dark display after being touched or pressed, especially in larger products where the uneven dark display is more pronounced. Summary of the Invention

[0003] This disclosure provides a display panel and a display device to solve or alleviate one or more technical problems in the prior art.

[0004] As a first aspect of the present disclosure, the present disclosure provides a display panel, including:

[0005] The first substrate includes a first substrate and a thin-film transistor, an organic planarization layer, a first metal layer, and a first transparent electrode layer sequentially disposed on one side of the first substrate. The first metal layer includes multiple first metal traces, second metal traces, and a first metal connector. The first metal traces extend along a first direction, the second metal traces are disposed along a second direction, and there is a preset gap between the second metal traces and the first metal traces. The first metal connector is located between the second metal traces and the first metal traces, and both the second metal traces and the first metal traces are connected to the first metal connector. The orthographic projection of the first metal layer on the first substrate is located within the orthographic projection of the first transparent electrode layer on the first substrate.

[0006] The second substrate is disposed opposite to the first substrate. The second substrate includes a second substrate and a support pillar disposed on the side of the second substrate facing the first substrate. The orthogonal projection of the support pillar on the first substrate is located within the orthogonal projection of the first metal connecting block on the first substrate.

[0007] In one embodiment, there is a first preset distance between the orthographic projection boundary of the support post on the first substrate and the orthographic projection boundary of the first metal connecting block on the first substrate, the first preset distance being greater than 6.5 μm.

[0008] In one embodiment, the display panel includes a plurality of sub-pixels, a second metal trace is located between two adjacent sub-pixels, a first metal connection block corresponds to a sub-pixel, and the orthographic projection of the channel of the thin film transistor on the first substrate is located within the orthographic projection of the corresponding first metal connection block on the first substrate.

[0009] In one embodiment, the first substrate further includes a plurality of gate lines and a plurality of data lines located between the first substrate and the organic planarization layer. The plurality of gate lines and the plurality of data lines intersect each other. The gate lines extend along a first direction, and the data lines extend along a second direction. The orthographic projection of the first metal trace on the first substrate at least partially overlaps with the orthographic projection of the gate line on the first substrate, and the orthographic projection of the second metal trace on the first substrate at least partially overlaps with the orthographic projection of the data line on the first substrate.

[0010] In one embodiment, the second metal trace is located between two adjacent first metal traces, and the second metal trace is connected to one of the two adjacent first metal traces, and has a preset gap with the other first metal trace.

[0011] In one embodiment, the first metal layer further includes a plurality of third metal traces extending along a second direction, a second metal trace located between two adjacent third metal traces, and the third metal traces intersecting with the first metal traces at a first intersection. The first metal layer also includes a second metal connector block connected to the first intersection.

[0012] In one embodiment, the second metal connector is the same as the first metal connector, and the second metal connector and the first metal connector are located on the same side of the same first metal trace.

[0013] In one embodiment, the first substrate further includes a plurality of data lines located between the first substrate and the organic planarization layer, the data lines extending along a second direction, and the orthographic projection of the third metal traces on the first substrate at least partially overlapping the orthographic projection of the data lines on the first substrate; two second metal traces are disposed between two adjacent third metal traces.

[0014] In one embodiment, the first substrate further includes:

[0015] A second transparent electrode layer and a passivation layer are present. The second transparent electrode layer is located on the side of the organic planarization layer opposite to the first substrate. The passivation layer is located on the side of the second transparent electrode layer opposite to the first substrate. A first metal layer is located on the side of the passivation layer opposite to the first substrate. The second transparent electrode layer is coupled to a thin-film transistor, and the first transparent electrode layer and the first metal layer are coupled to a common electrode signal. Alternatively,

[0016] The first transparent electrode layer and the second transparent electrode layer are provided. The passivation layer is located on the side of the first transparent electrode layer away from the first substrate, and the second transparent electrode layer is located on the side of the passivation layer away from the first substrate. The second transparent electrode layer is coupled to the thin film transistor, and the first transparent electrode layer and the first metal layer are coupled to the common electrode signal.

[0017] In one embodiment, the second substrate further includes a black matrix located on the side of the second substrate facing the first substrate, a support pillar located on the side of the black matrix facing the first substrate, and the orthographic projection of the first metal layer on the first substrate lies within the orthographic projection of the black matrix on the first substrate.

[0018] As a second aspect of the present disclosure, the present disclosure provides a display device including the display panel in any embodiment of the present disclosure.

[0019] In this embodiment, the orthographic projection of the support post on the first substrate lies within the orthographic projection of the first metal connector block on the first substrate. Therefore, the end face of the support post facing the first substrate (i.e., the lower end face of the support post) can be located above the flat surface defined by the first metal connector block, and there are no protrusions in the surrounding area of ​​the first metal connector block relative to its position. With this structure, when the display panel is pressed by an external force, the support post can slide freely on the flat surface defined by the first metal connector block. Since there are no protrusions above the position of the first metal connector block in the surrounding area, even if the support post slides or deforms to an area outside the first metal connector block, it will not be stuck by any protrusions. Thus, the support post can quickly return to its original shape after the external force disappears, preventing deformation of the first substrate, avoiding light leakage due to the elastic effect of the first substrate, avoiding uneven display, and avoiding touch DNU defects.

[0020] The above overview is for illustrative purposes only and is not intended to be limiting in any way. Further aspects, embodiments, and features of this disclosure will become readily apparent from the accompanying drawings and the following detailed description, in addition to the illustrative aspects, embodiments, and features described above. Attached Figure Description

[0021] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments according to this disclosure and should not be construed as limiting the scope of this disclosure.

[0022] Figure 1 This is a cross-sectional schematic diagram of a liquid crystal display panel;

[0023] Figure 2 This is a partial planar schematic diagram of the first substrate in a display panel;

[0024] Figure 3 This is a plan view of a display panel related to the technology.

[0025] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0026] Figure 5 for Figure 4 Schematic diagram of section AA in the diagram;

[0027] Figure 6 for Figure 4 Schematic diagram of the BB section in the diagram;

[0028] Figure 7 This is a schematic diagram of the display panel after being touched and pressed.

[0029] Figure 8 This is another illustration of the display panel after being touched and pressed;

[0030] Figure 9 This is a plan view of a display panel according to an embodiment of the present disclosure;

[0031] Figure 10 for Figure 9 A magnified view of a portion of the image;

[0032] Figure 11 for Figure 10 A schematic diagram of the BB section.

[0033] Explanation of reference numerals in the attached figures:

[0034] 10. First substrate; 11. First substrate; 131. Data line; 132. Source; 133. Drain; 14. Organic planarization layer; 15. Second transparent electrode layer; 16. Passivation layer; 17. First metal layer; 171. First metal trace; 172. Second metal trace; 173. Third metal trace; 174. First metal connector; 175. Second metal connector;

[0035] 20. Second substrate; 21. Second substrate; 22. Black matrix; 23. Color filter layer; 24. Protective layer; 25. Support pillar. Detailed Implementation

[0036] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this disclosure, and different embodiments can be combined arbitrarily without conflict. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0037] Figure 1 This is a cross-sectional schematic diagram of a liquid crystal display panel. (For example...) Figure 1As shown, the liquid crystal display panel includes a first substrate 10 and a second substrate 20 disposed opposite to each other. The second substrate 20 includes a second substrate 21 (usually made of glass). A support pillar 25 is disposed on the side of the second substrate 21 facing the first substrate 10. The support pillar 25 is supported between the first substrate 10 and the second substrate 20 to ensure a stable cell thickness between the first substrate 10 and the second substrate 20. When the display panel is touched and pressed, the support pillar 25 shifts relative to the first substrate 10 and cannot quickly recover, causing the support pillar 25 to deform. The deformation of the support pillar 25 causes the glass substrate to deform, resulting in stress accumulation in the glass. Due to the photoelastic effect, the glass becomes an anisotropic refractive index transmission medium after stress is generated, producing additional delay, causing some light that should not propagate to propagate to be transmitted, resulting in light leakage. This light leakage phenomenon manifests macroscopically as some parts of the display panel being bright and some parts being dark, forming a display unevenness defect. This display unevenness defect caused by touch is usually called touch DNU defect.

[0038] The above analysis shows that if the support column can quickly recover after moving or deforming, it can effectively prevent malfunctions caused by touching the DNU.

[0039] Figure 2 This is a partial planar schematic diagram of a first substrate in a display panel. In the liquid crystal display panel, the first substrate 10, for example, can be an array substrate, including a pixel electrode layer and a common electrode layer. An electric field is generated between the pixel electrode layer and the common electrode layer to drive the liquid crystal to deflect for display. To reduce the resistance of the common electrode layer, a metal line 122 is disposed in the same layer as the gate line 121 in the array substrate. The metal line 122 is connected to the common electrode layer to reduce the resistance of the common electrode layer. The metal line 122 and the gate line 121 are located in the same layer and are arranged parallel to each other. This results in an increase in the distance between two adjacent sub-pixels in the column direction, reducing the aperture ratio of the display panel.

[0040] Figure 3 This is a plan view of a display panel related to the technology. Figure 3 Only the pattern of the first metal layer 17 and the location of the support pillars are shown in the image; Figure 4 for Figure 3 A magnified view of a portion of the image; Figure 5 for Figure 4 Schematic diagram of section AA in the diagram; Figure 6 for Figure 4 The BB cross-section diagram is shown in the image to more clearly illustrate the film structure of the display panel. Figure 6 The image also shows a second transparent electrode layer 15. To increase the aperture ratio of the display panel, such as... Figures 3-6As shown, the first substrate 10 includes a first substrate 11, and the first substrate 10 further includes a thin-film transistor, an organic planarization layer 14, a second transparent electrode layer 15, a passivation layer 16, a first metal layer 17, and a first transparent electrode layer 18 sequentially disposed on one side of the first substrate 11. One of the first transparent electrode layer 18 and the second transparent electrode layer 15 is a common electrode layer, and the other is a pixel electrode layer. For example, the first transparent electrode layer 18 can be a common electrode layer, and the second transparent electrode layer 15 can be a pixel electrode layer.

[0041] The first metal layer 17 includes multiple first metal traces 171, second metal traces 172, and third metal traces 173. The first metal traces 171 extend along a first direction X, the second metal traces 172 are positioned along a second direction Y, and the third metal traces 173 extend along the second direction Y. The first metal traces 171, second metal traces 172, and third metal traces 173 are all located between adjacent sub-pixels. The second metal trace 172 is located between two adjacent first metal traces 171 and between two adjacent third metal traces 173. The second metal trace 172 is connected to one of the first metal traces 171 and has a preset gap M between it and the other first metal trace 171. The second direction Y intersects the first direction X, as shown below. Figure 3 As shown. In Figure 3 In the middle, there is a third metal trace 173 every three sub-pixels, and the third metal trace 173 intersects and connects with multiple first metal traces 171.

[0042] The orthographic projection of the first metal layer 17 on the first substrate 11 is located within the orthographic projection of the first transparent electrode layer 18 on the first substrate 11. The first metal layer 17 is connected to the first transparent electrode layer 18. The first metal layer 17 is used to reduce the resistance of the first transparent electrode layer 18 and improve the uniformity of the common electrode signal.

[0043] like Figure 6 As shown, the gate line and gate electrode 123 are located on the same layer. Therefore, the first metal trace 171 and the gate line are located on different layers, allowing the first metal trace 171 to be stacked with the gate line. This reduces the impact of the first metal trace 171 on the aperture ratio compared to... Figure 2 In this embodiment, the aperture ratio of the display panel is increased.

[0044] like Figure 5 and Figure 6As shown, the first substrate 10 also includes a data line 131, which is disposed in the same layer as the source electrode 132 or drain electrode 133 of the thin-film transistor. An organic planarization layer 14 is located on the side of the data line 131 facing away from the first substrate 11. Since the first metal layer 17 is located above the organic planarization layer 14, the organic planarization layer 14 cannot planarize the substrate surface after the first metal layer 17 is disposed. Furthermore, the thickness of the first metal layer 17 is typically relatively large, resulting in a significant height difference between the positions of the first metal layer 17 and non-first metal layer 17 on the surface of the first substrate 10 facing the second substrate 20. This causes the positions of the first metal layer 17 to protrude relative to the non-first metal layer 17. For example… Figure 6 In the middle, the preset gap M position is not the first metal layer 17 position, and the first metal trace 171 and the second metal trace 172 position (i.e. N position) form a protrusion relative to the preset gap M position.

[0045] The second substrate 20 includes a second substrate 21 and a main support pillar 251 disposed on the side of the second substrate 21 facing the first substrate 10, such as Figure 3 and Figure 6 As shown, the orthographic projection of the main support pillar 251 on the first substrate 11 is located within the preset gap M, and the lower end of the main support pillar 251 abuts against the surface of the first substrate 10 at the preset gap M position. Since there is no first metal layer 17 at the preset gap M position, the height difference between the preset gap M position and the surrounding position N with the first metal layer 17 on the first substrate 10 is relatively large. The first metal layer 17 position N forms a protrusion relative to the preset gap M position, thus, there is a protrusion around the main support pillar 251.

[0046] Figure 7 This is a diagram illustrating the display panel after being touched and pressed. (Example) Figure 7 As shown, under the action of external force touching and pressing, the main support column 251 slides relative to the first substrate 10. After the main support column 251 deforms, it is stuck by the protrusion at position N of the surrounding first metal layer 17, causing the main support column to be unable to quickly return to its original shape after the external force disappears. The deformation of the main support column 251 causes the first substrate 11 of glass material to deform, resulting in stress accumulation in the glass, causing light leakage and forming uneven display defects, that is, forming a touch DNU defect.

[0047] Figure 8 This is another illustration of the display panel after being touched and pressed. (See diagram below.) Figure 8As shown, the orthographic projection of the sub-support pillar 252 on the first substrate 11 is located within a preset gap M, and the lower end of the sub-support pillar 252 is at a preset distance from the upper surface of the first substrate 10. Under the action of external force touching and pressing, the sub-support pillar 252 deforms and is then stuck by the protrusion at position N of the surrounding first metal layer 17, causing the sub-support pillar to fail to quickly return to its original shape after the external force is removed. The deformation of the sub-support pillar 252 causes the first substrate 11 of glass material to deform, resulting in stress accumulation in the glass, causing light leakage and forming uneven display defects.

[0048] To address the issue of uneven display in display panels, this disclosure provides a display panel.

[0049] Figure 9 This is a plan view of a display panel according to an embodiment of the present disclosure. Figure 9 Only the projections of the first metal layer 17 and the support pillar 25 on the first substrate 10 are shown in the figure; Figure 10 for Figure 9 A magnified view of a portion of the image;

[0050] Figure 11 for Figure 10 The BB cross-section diagram is shown in the image to more clearly illustrate the film structure of the display panel. Figure 11 The image also shows a second transparent electrode layer 15. (See image for reference.) Figures 9-11 As shown, the display panel includes a first substrate 10 and a second substrate 20 disposed opposite to each other. The first substrate 10 includes a first substrate 11 and thin-film transistors, an organic planarization layer 14, a first metal layer 17, and a first transparent electrode layer 18 sequentially disposed on one side of the first substrate 11. The first metal layer 17 includes multiple first metal traces 171, second metal traces 172, and first metal connectors 174. The first metal traces 171 extend along a first direction X, and the second metal traces 172 are disposed along a second direction Y. The second direction Y intersects the first direction X, for example, the second direction Y is perpendicular to the first direction X.

[0051] like Figure 9 As shown, a preset gap exists between the second metal trace 172 and the first metal trace 171. The first metal connector 174 is located between the second metal trace 172 and the first metal trace 171, meaning the first metal connector 174 is situated within the preset gap between the second metal trace 172 and the first metal trace 171. Both the second metal trace 172 and the first metal trace 171 are connected to the first metal connector 174. The orthographic projection of the first metal layer 17 onto the first substrate 11 lies within the orthographic projection of the first transparent electrode layer 18 onto the first substrate 11, thus, the first metal layer 17 and the first transparent electrode layer 18 are contact-coupled.

[0052] The second substrate 20 includes a second substrate 21 and a support pillar 25 disposed on the side of the second substrate 21 facing the first substrate 10. The orthogonal projection of the support pillar 25 on the first substrate 11 lies within the orthogonal projection of the first metal connecting block 174 on the first substrate 11, such as... Figures 9-11 As shown.

[0053] In the display panel of this embodiment, the orthographic projection of the first metal layer 17 on the first substrate 11 is located within the orthographic projection of the first transparent electrode layer 18 on the first substrate 11. Thus, the first metal layer 17 and the first transparent electrode layer 18 are contact-coupled. Since the resistance of metal is generally less than that of transparent conductive material, the contact-coupled connection between the first metal layer 17 and the first transparent electrode layer 18 can reduce the resistance of the first transparent electrode layer 18, improve the signal transmission performance of the first transparent electrode layer 18, and thereby improve the performance of the display panel.

[0054] In the display panel of this embodiment, the surface of the organic planarization layer 14 facing away from the first substrate 11 is a flat surface. Therefore, the first metal layer 17 is located on the flat surface, and the first transparent electrode layer 18 is located on the side of the first metal layer 17 facing away from the first substrate 11. The orthographic projection of the first metal layer 17 on the first substrate 11 lies within the orthographic projection of the first transparent electrode layer 18 on the first substrate 11. Thus, in the surface of the first substrate 10 facing the second substrate 20 (i.e., the upper surface of the first substrate 10), the upper surface of the first metal layer 17 is higher than the upper surface of the other parts of the first metal layer 17. Consequently, the upper surface of the first metal connector 174 is higher than the upper surface of the other parts of the first metal layer 17, and no protrusion is formed in the area surrounding the first metal connector 174 relative to the location of the first metal connector 174.

[0055] In related technologies, such as Figure 4 and Figure 6 As shown, the orthographic projection of the support pillar 251 onto the first substrate 11 lies within the preset gap M. There is no first metal layer 17 within the preset gap M. Therefore, see... Figure 4 The height of the upper protrusion of the support column 25 is at least the height of the second metal trace 172, and the height of the lower protrusion of the support column 25 is at least the height of the first metal trace 171; that is, there are protrusions on both the upper and lower sides of the main support column. (Reference) Figure 7 When subjected to external force and pressure, the support pillar 25 slides relative to the first substrate 10. After deformation, the support pillar 25 is stuck by the protrusion at position N of the surrounding first metal layer 17, preventing the main support pillar from quickly returning to its original shape after the external force is removed. The deformation of the support pillar 25 causes deformation of the first substrate 11 of the glass material, resulting in stress accumulation in the glass, light leakage, and uneven display.

[0056] In this embodiment of the present disclosure, the orthographic projection of the support post 25 on the first substrate 11 is located within the orthographic projection of the first metal connecting block 174 on the first substrate 11. Thus, the end face of the support post 25 facing the first substrate 10 (i.e., the lower end face of the support post 25) can be located above the flat surface defined by the first metal connecting block 174, and there is no protrusion in the outer surrounding area of ​​the first metal connecting block 174 relative to the position of the first metal connecting block 174. With this structure, when the display panel is pressed by an external force, the support post 25 can slide freely on the flat surface defined by the first metal connecting block 174. Since there are no protrusions higher than the position of the first metal connecting block 174 in the surrounding area, even if the support post 25 slides or deforms to an area outside the first metal connecting block 174, the support post 25 will not be stuck by the protrusions. Thus, the support post 25 can quickly return to its original shape after the external force disappears, preventing the first substrate 11 from deforming, avoiding light leakage of the first substrate 11 due to the photoelastic effect, avoiding uneven display, and avoiding touch DNU defects.

[0057] It should be noted that the support post 25 may include a bottom surface facing the first substrate 11 and a top surface facing the second substrate 21. The orthographic projection of the support post 25 on the first substrate 11 should be understood as the orthographic projection of the bottom surface of the support post 25 on the first substrate 11.

[0058] For example, the material of the first substrate 11 may include glass; for example, the first substrate 11 may be a glass substrate. The material of the second substrate 21 may also include glass; for example, the second substrate 21 may be a glass substrate.

[0059] The organic planarization layer 14 may be made of organic materials, such as resins. The thickness of the organic planarization layer 14 may be 1.5 μm to 2.5 μm. For example, the thickness of the organic planarization layer 14 may be 1.5 μm, 2.0 μm, or 2.5 μm.

[0060] The material of the first transparent electrode layer 18 may include a transparent conductive material, such as indium tin oxide (ITO) or indium zinc oxide (IZO). The thickness of the first transparent electrode layer 18 may range from 400 angstroms to 600 angstroms. For example, the thickness of the first transparent electrode layer 18 may be 400 angstroms, 500 angstroms, or 600 angstroms.

[0061] For example, the thickness of the first metal layer can range from 1,000 angstroms to 3,000 angstroms. For instance, the thickness of the first metal layer can be 1,000 angstroms, 2,000 angstroms, or 3,000 angstroms.

[0062] In one embodiment, the support post 25 has a first preset distance between its orthographic projection boundary on the first substrate 11 and the first metal connecting block 174 has a first preset distance between its orthographic projection boundary on the first substrate 11. The first preset distance may be greater than 6.5 μm.

[0063] By setting the first preset distance to be greater than 6.5μm, when the display panel is touched and pressed by an external force, the support post 25 will not slide outside the area of ​​the first metal connecting block 174 even if it slides. This ensures that the support post 25 is always located on the flat surface defined by the first metal connecting block 174. When the external force disappears, the support post 25 can quickly return to its original shape, further preventing the deformation of the first substrate 11, avoiding light leakage, and avoiding uneven display defects.

[0064] In one embodiment, the display panel includes a plurality of sub-pixels. A second metal trace 172 may be located between two adjacent sub-pixels, and a first metal connecting block 174 corresponds to a sub-pixel, such as... Figure 9 As shown. It should be noted that the first metal connecting block 174 corresponds to the sub-pixel. It should be understood that each metal connecting block corresponds to one sub-pixel. There is no limitation on the position of the first metal connecting block 174 and the sub-pixel.

[0065] like Figure 11 As shown, the orthographic projection of the thin-film transistor's channel on the first substrate 11 lies within the orthographic projection of the corresponding first metal interconnect 174 on the first substrate 11. With this structure, the first metal interconnect 174 can shield the thin-film transistor's channel, preventing light from above the first metal layer 17 from illuminating the channel and avoiding photogenerated carriers from affecting the thin-film transistor's characteristics. This ensures the thin-film transistor's performance and helps improve the image retention problem in display panels. The thin-film transistor may include a gate electrode 123, a source electrode 132, a drain electrode 133, and an active layer. Figure 11 The thin-film transistor shown is a bottom-gate thin-film transistor. In other embodiments, the thin-film transistor may also be a top-gate thin-film transistor or other types of thin-film transistors. There is no limitation on the type of thin-film transistor.

[0066] The first substrate 10 also includes multiple gate lines 121 and multiple data lines 131 located between the first substrate 11 and the organic planarization layer 14, with the gate lines 121 and data lines 131 intersecting each other. A gate electrode 123 is connected to the gate line 121, and a source electrode 132 is connected to the data line 131. The gate line 121 extends along a first direction X, and the data line 131 extends along a second direction Y. The gate line 121 is disposed in the same layer as the gate electrode of the thin-film transistor, and the data line 131 is disposed in the same layer as the source or drain electrode of the thin-film transistor. The orthographic projection of the first metal trace 171 on the first substrate 11 at least partially overlaps with the orthographic projection of the gate line 121 on the first substrate 11. The orthographic projection of the second metal trace 172 on the first substrate 11 at least partially overlaps with the orthographic projection of the data line 131 on the first substrate 11. This structure can reduce the impact of the first metal trace 171 and the second metal trace 172 on the aperture ratio, thereby improving the aperture ratio of the display panel.

[0067] The first metal trace 171 extends along the first direction X, and the width direction of the first metal trace 171 is perpendicular to the first direction X. The orthographic projection of the first metal trace 171 on the first substrate 11 at least partially overlaps with the orthographic projection of the gate line 121 on the first substrate 11. This can be understood as the first metal trace 171 and the gate line 121 at least partially overlapping in the direction perpendicular to the first direction X.

[0068] The second metal trace 172 extends along the second direction Y, and the width direction of the second metal trace 172 is perpendicular to the second direction Y. The orthographic projection of the second metal trace 172 on the first substrate 11 at least partially overlaps with the orthographic projection of the data line 131 on the first substrate 11. This can be understood as the second metal trace 172 at least partially overlapping with the orthographic projection of the data line 131 on the first substrate 11 in the direction perpendicular to the second direction Y.

[0069] For example, the orthographic projection of the first metal trace 171 on the first substrate 11 lies within the orthographic projection of the gate line 121 on the first substrate 11. The orthographic projection of the second metal trace 172 on the first substrate 11 lies within the orthographic projection of the data line 131 on the first substrate 11. With this structure, the first metal trace 171 and the second metal trace 172 do not affect the aperture ratio of the display panel.

[0070] For example, the orthographic projection of gate line 121 on the first substrate 11 lies within the orthographic projection of first metal trace 171 on the first substrate 11. The orthographic projection of data line 131 on the first substrate 11 lies within the orthographic projection of second metal trace 172 on the first substrate 11.

[0071] like Figure 9As shown, the second metal trace 172 is located between two adjacent first metal traces 171. The second metal trace 172 is connected to one of the two adjacent first metal traces 171 (the upper one) and has a preset gap with the other (the lower one) first metal trace 171b.

[0072] The first metal layer 17 also includes a third metal trace 173, which extends along the second direction Y. A second metal trace 172 is located between two adjacent third metal traces 173. The third metal trace 173 intersects with the first metal trace 171 at a first intersection. The first metal layer 17 also includes a second metal connector 175, which is connected to the first intersection, such as... Figure 9 As shown, two second metal traces 172 are provided between two adjacent third metal traces 173, that is, there are three sub-pixels between two adjacent third metal traces 173.

[0073] In related technologies, such as Figure 3 As shown, a third metal trace 173 exists every three sub-pixels, and the third metal trace 173 intersects and connects with multiple first metal traces 171. In this embodiment of the present disclosure, by setting a first metal connecting block 174, adjacent second metal traces 172 in the second direction Y can be connected to each other. For example, in Figure 9 In the second direction Y, two adjacent second metal traces 172a and 172b are connected by a first metal connecting block 174. Thus, second metal traces 172 located in the same column are connected by the first metal connecting block 174. This structure is the same as that of the third metal trace 173 and the second metal connecting block 175. Therefore, the structure of the second metal traces 172 located in the same column and connected by the first metal connecting block 174 is equivalent to that of the third metal trace 173 with the second metal connecting block 175, and their performance is comparable. This makes the structure of the first metal layer 17 more uniform, improves the uniformity of signal transmission in the first transparent electrode layer 18, and enhances the display effect.

[0074] For example, the second metal connecting block 175 can be the same as the first metal connecting block 174, that is, the second metal connecting block 175 and the first metal connecting block 174 have the same structural dimensions, and the second metal connecting block 175 and the first metal connecting block 174 are located on the same side of the same first metal trace 171. With this structure, the second metal trace 172 located in the same column and connected by the first metal connecting block 174 has the same structure as the third metal trace 173 on which the second metal connecting block 175 is provided, further improving the performance and display effect of the display panel.

[0075] like Figure 11As shown, the first substrate 10 also includes multiple data lines 131 (not shown in the figure). The data lines 131 are located between the first substrate 11 and the organic planarization layer 14. For example, the data lines 131 can be disposed on the same layer as the source or drain of the thin-film transistor. (Reference) Figure 9 The data line 131 extends along the second direction Y. The orthographic projection of the third metal trace 173 on the first substrate 11 at least partially overlaps with the orthographic projection of the data line 131 on the first substrate 11, and two second metal traces 172 are disposed between two adjacent third metal traces 173.

[0076] In related technologies, such as Figure 3 As shown, a third metal trace 173 exists every three sub-pixels, and the third metal trace 173 intersects and connects with multiple first metal traces 171. A pixel can include three sub-pixels; for example, sub-pixels A1, B1, and C1 form the first pixel, and sub-pixels A2, B2, and C2 form the second pixel. In the second direction Y, the connection relationship between adjacent pixels in the first metal layer 17 is 1 / 3, that is, three sub-pixels have a connection point in the first metal layer 17. For example, the first pixel and the second pixel are adjacent pixels in the second direction Y, and these two pixels are connected by the third metal trace 173, while the second metal traces 172c corresponding to sub-pixel B1 and 172d corresponding to sub-pixel B2 are disconnected. Similarly, the second metal traces 172e corresponding to sub-pixel C1 and 172d corresponding to sub-pixel C2 are disconnected.

[0077] In this embodiment of the disclosure, such as Figure 9 As shown, in the second direction Y, the connection relationship between adjacent pixels in the first metal layer 17 is 1 / 1, meaning that three sub-pixels have three connection points in the first metal layer 17. For example, sub-pixels A1, B1, and C1 form the first pixel, and sub-pixels A2, B2, and C2 form the second pixel. The first pixel and the second pixel are adjacent pixels in the second direction Y, and these two pixels are connected by the third metal trace 173. The second metal trace 172c corresponding to sub-pixel B1 and the second metal trace 172d corresponding to sub-pixel B2 are connected by the corresponding first metal connecting block 174. Similarly, the second metal trace 172e corresponding to sub-pixel C1 and the second metal trace 172e corresponding to sub-pixel C2 are connected by the corresponding first metal connecting block 174. This structure makes the structure of the first metal layer 17 more uniform, improves the uniformity of the signal transmitted by the first transparent electrode layer 18, and improves the display effect.

[0078] like Figure 11As shown, the first substrate 10 further includes a second transparent electrode layer 15 and a passivation layer 16. The second transparent electrode layer 15 is located on the side of the organic planarization layer 14 facing away from the first substrate 11. The passivation layer 16 is located on the side of the second transparent electrode layer 15 facing away from the first substrate 11. A first metal layer 17 is located on the side of the passivation layer 16 facing away from the first substrate 11. The second transparent electrode layer 15 is coupled to the drain 133 of the thin-film transistor. The first transparent electrode layer 18 and the first metal layer 17 are coupled to a common electrode signal. Thus, the second transparent electrode layer 15 can be a pixel electrode layer, and the first transparent electrode layer 18 can be a common electrode layer.

[0079] For example, the thickness of the passivation layer 16 can be in the range of 4000 angstroms to 6000 angstroms. For instance, the thickness of the passivation layer can be 4000 angstroms, 5000 angstroms, or 6000 angstroms.

[0080] The material of the second transparent electrode layer 15 may include a transparent conductive material, such as indium tin oxide (ITO) or indium zinc oxide (IZO). The thickness of the second transparent electrode layer 15 may range from 400 angstroms to 600 angstroms. For example, the thickness of the second transparent electrode layer 15 may be 400 angstroms, 500 angstroms, or 600 angstroms.

[0081] In another embodiment, the first substrate 10 further includes a passivation layer 16 and a second transparent electrode layer 15. The passivation layer 16 is located on the side of the first transparent electrode layer 18 facing away from the first substrate 11. The second transparent electrode layer 15 is located on the side of the passivation layer 16 facing away from the first substrate 11. The second transparent electrode layer 15 is coupled to the drain of the thin-film transistor, and the first transparent electrode layer 18 and the first metal layer 17 are coupled to a common electrode signal. Thus, the second transparent electrode layer 15 can be a pixel electrode layer, and the first transparent electrode layer 18 can be a common electrode layer. In this embodiment, the second transparent electrode layer 15 is located on the upper surface of the first substrate 10. Although the first metal layer 17 and the first transparent electrode layer 18 are covered by the passivation layer 16, the passivation layer 16 is relatively thin and cannot perform a planarization function. Therefore, the morphology of the surface of the first substrate 10 facing the second substrate 20 depends on the first metal layer 17. On the surface of the first substrate 10 facing the second substrate 20 (i.e., the upper surface of the first substrate 10), the upper surface of the first metal connecting block 174 is not lower than the upper surface of the area surrounding the first metal connecting block 174. When the display panel is pressed by an external force, the support post 25 can slide freely on the flat surface defined by the first metal connecting block 174. Since there are no protrusions higher than the position of the first metal connecting block 174 in the area surrounding the first metal connecting block 174, even if the support post 25 slides or deforms to an area outside the first metal connecting block 174, the support post 25 will not be stuck by the protrusions. Thus, the support post 25 can quickly return to its original shape after the external force disappears, preventing the first substrate 11 from deforming and avoiding light leakage due to the elastic effect of the first substrate 11, thus avoiding uneven display defects.

[0082] like Figure 11 As shown, the second substrate 20 also includes a black matrix 22, which is located on the side of the second substrate 21 facing the first substrate 10. Support pillars 25 are located on the side of the black matrix 22 facing the first substrate 10. The orthographic projection of the first metal layer 17 onto the first substrate 11 lies within the orthographic projection of the black matrix 22 onto the first substrate 11. In this structure, the first metal layer 17 is shielded by the black matrix 22, and therefore does not affect the aperture ratio.

[0083] The second substrate 20 may further include a color filter layer 23 and a protective layer 24. The color filter layer 23 is located on the side of the black matrix 22 opposite to the second substrate 21. The color filter layer 23 may include a red color filter, a green color filter, and a blue color filter, which are respectively located in their respective sub-pixel regions. The protective layer 24 is located on the side of the color filter layer 23 opposite to the second substrate 21, and support pillars 25 are located on the side of the protective layer 24 opposite to the second substrate 21. The support pillars 25 may include main support pillars and sub support pillars. Figure 11The support column 25 shown is the main support column 251. The main support column is supported between the first substrate 10 and the second substrate 20, and the secondary support column has a predetermined distance from the surface of the first substrate 10.

[0084] For example, the display panel may also include a liquid crystal located between the first substrate 10 and the second substrate 20.

[0085] In an exemplary embodiment, the passivation layer may be any one or more of silicon oxide (SiOx), silicon nitride (SiNx), and silicon oxynitride (SiON), and may be a single layer, multiple layers, or a composite layer. The first metal layer may be a metallic material, such as any one or more of silver (Ag), copper (Cu), aluminum (Al), titanium (Ti), and molybdenum (Mo), or an alloy of the above metals, such as aluminum-neodymium alloy (AlNd) or molybdenum-niobium alloy (MoNb), and may be a single-layer structure or a multi-layer composite structure, such as Ti / Al / Ti.

[0086] Based on the inventive concept of the foregoing embodiments, this disclosure also provides a display device, which includes a display panel employing the foregoing embodiments. The display device can be any product or component with display functionality, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator.

[0087] In the specification, the thickness of the film layer on the first substrate is the dimension of the film layer in the direction perpendicular to the first substrate.

[0088] In the description of this specification, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0089] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, "multiple" means two or more, unless otherwise explicitly specified.

[0090] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0091] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0092] The foregoing disclosure provides many different implementations or examples for carrying out different structures of this disclosure. To simplify this disclosure, the components and arrangements of specific examples are described above. Of course, these are merely examples and are not intended to limit this disclosure. Furthermore, reference numerals and / or reference letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0093] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this disclosure, and these should all be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A display panel, characterized in that, include: A first substrate includes a first substrate and a thin-film transistor, an organic planarization layer, a first metal layer, and a first transparent electrode layer sequentially disposed on one side of the first substrate. The first metal layer includes multiple first metal traces, second metal traces, and a first metal connector. The first metal traces extend along a first direction, the second metal traces are disposed along a second direction, and there is a predetermined gap between the second metal traces and the first metal traces. The first metal connector is located between the second metal traces and the first metal traces, and both the second metal traces and the first metal traces are connected to the first metal connector. The orthographic projection of the first metal layer on the first substrate is located within the orthographic projection of the first transparent electrode layer on the first substrate. The second substrate is disposed opposite to the first substrate. The second substrate includes a second substrate and a support pillar disposed on the side of the second substrate facing the first substrate. The orthographic projection of the support pillar on the first substrate is located within the orthographic projection of the first metal connector block on the first substrate. The end face of the support pillar facing the first substrate is located above the flat surface defined by the first metal connector block, and there is no protrusion in the outer surrounding area of ​​the first metal connector block relative to the position of the first metal connector block.

2. The display panel according to claim 1, characterized in that, There is a first preset distance between the orthographic projection boundary of the support column on the first substrate and the orthographic projection boundary of the first metal connecting block on the first substrate, the first preset distance being greater than 6.5 μm.

3. The display panel according to claim 1, characterized in that, The display panel includes multiple sub-pixels, the second metal trace is located between two adjacent sub-pixels, the first metal connection block corresponds to the sub-pixel, and the orthographic projection of the channel of the thin film transistor on the first substrate is located within the orthographic projection of the corresponding first metal connection block on the first substrate.

4. The display panel according to claim 1, characterized in that, The first substrate further includes a plurality of gate lines and a plurality of data lines located between the first substrate and the organic planarization layer. The plurality of gate lines and the plurality of data lines intersect each other. The gate lines extend along the first direction, and the data lines extend along the second direction. The orthographic projection of the first metal trace on the first substrate at least partially overlaps with the orthographic projection of the gate line on the first substrate. The orthographic projection of the second metal trace on the first substrate at least partially overlaps with the orthographic projection of the data line on the first substrate.

5. The display panel according to claim 1, characterized in that, The second metal trace is located between two adjacent first metal traces. The second metal trace is connected to one of the two adjacent first metal traces and has the preset gap between it and the other first metal trace.

6. The display panel according to claim 5, characterized in that, The first metal layer further includes multiple third metal traces extending along the second direction. The second metal traces are located between two adjacent third metal traces. The third metal traces intersect with the first metal traces at a first intersection. The first metal layer also includes a second metal connecting block connected to the first intersection.

7. The display panel according to claim 6, characterized in that, The second metal connector is the same as the first metal connector, and the second metal connector and the first metal connector are located on the same side of the first metal trace.

8. The display panel according to claim 6, characterized in that, The first substrate further includes a plurality of data lines located between the first substrate and the organic planarization layer, the data lines extending along the second direction, the orthographic projection of the third metal trace on the first substrate at least partially overlapping the orthographic projection of the data line on the first substrate; and two second metal traces are disposed between two adjacent third metal traces.

9. The display panel according to claim 1, characterized in that, The first substrate further includes: A second transparent electrode layer and a passivation layer are present. The second transparent electrode layer is located on the side of the organic planarization layer opposite to the first substrate. The passivation layer is located on the side of the second transparent electrode layer opposite to the first substrate. The first metal layer is located on the side of the passivation layer opposite to the first substrate. The second transparent electrode layer is coupled to the thin-film transistor. The first transparent electrode layer and the first metal layer are coupled to a common electrode signal. Alternatively... A passivation layer and a second transparent electrode layer are provided. The passivation layer is located on the side of the first transparent electrode layer opposite to the first substrate, and the second transparent electrode layer is located on the side of the passivation layer opposite to the first substrate. The second transparent electrode layer is coupled to the thin-film transistor, and the first transparent electrode layer and the first metal layer are coupled to a common electrode signal.

10. The display panel according to claim 1, characterized in that, The second substrate further includes a black matrix located on the side of the second substrate facing the first substrate, the support pillars located on the side of the black matrix facing the first substrate, and the orthographic projection of the first metal layer on the first substrate located within the orthographic projection of the black matrix on the first substrate.

11. A display device, characterized in that, The display panel includes any one of claims 1-10.

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