Display panel

Abstract

This application discloses a display panel in which an array substrate is provided, including multiple connecting lines. The connecting lines are disposed on a surface of the first passivation layer away from the substrate. The multiple connecting lines are spaced apart in a second direction of the display panel, and the connecting lines are electrically connected to multiple metal light-shielding portions and the common electrode layer. This allows the potential of the multiple metal portions of the metal light-shielding layer to be equal to the potential of the common electrode layer. The advantage is that it can avoid the floating potential of the metal light-shielding light, thereby improving the problem of electrostatic accumulation of the metal light-shielding light in the display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a display panel. Background Technology

[0002] The display panel includes an array substrate and a counter substrate, with the counter substrate located on one side of the array substrate. In conventional display panels, to reduce reflection of ambient light, a metal shield is made on the array substrate side to block the data lines. This avoids the data lines from reflecting external ambient light. However, the metal shield is prone to crosstalk with the electrode lines of the array substrate, causing the metal shield to float and resulting in static electricity accumulation on the metal shield. Utility Model Content

[0003] Embodiments of this application provide a display panel to improve the problem of static electricity accumulation in the metal light shield of the display panel.

[0004] Embodiments of this application provide a display panel, including an array substrate and a counter substrate, wherein the counter substrate is located on one side of the array substrate. The array substrate includes a substrate and a plurality of data lines, wherein the plurality of data lines are spaced apart on the substrate. The array substrate further includes:

[0005] A first passivation layer is disposed on the film layer on which the data line is located;

[0006] A metal light-shielding layer is disposed on a surface of the first passivation layer away from the substrate. The metal light-shielding layer includes a plurality of metal light-shielding portions, which are spaced apart in a first direction of the display panel.

[0007] A common electrode layer is disposed on the side of the metal light-shielding layer away from the substrate;

[0008] Multiple connecting lines are disposed on a surface of the first passivation layer away from the substrate. The multiple connecting lines are spaced apart in the second direction of the display panel, and the connecting lines are electrically connected to multiple metal light-shielding portions and the common electrode layer. The first direction and the second direction of the display panel intersect.

[0009] From a top-down view of the display panel, at least a portion of the metal light-shielding portion overlaps with the data line.

[0010] Furthermore, the array substrate also includes a protective layer, which is disposed on a surface of the metal light-shielding layer away from the substrate. The protective layer includes a plurality of protective portions, which are spaced apart in the first direction of the display panel.

[0011] From a top-down view of the display panel, the protective portion overlaps with the metal light-shielding portion.

[0012] Furthermore, a groove is formed between two adjacent metal light-shielding portions, wherein at least a portion of the connecting line fills the groove.

[0013] Furthermore, a portion of the connecting wire fills the groove, and a portion of the connecting wire covers the protective portion.

[0014] Furthermore, the connecting line fills the groove, and the surface of the connecting line away from the substrate is flush with the surface of the protective layer away from the substrate.

[0015] Furthermore, the material of the connecting wire is the same as the material of the protective layer.

[0016] Furthermore, the protective layer is made of a transparent conductive material.

[0017] Furthermore, the width of the connecting line is greater than the width of the protective part.

[0018] Furthermore, the metal light-shielding portion includes:

[0019] A first sub-metal layer is disposed on a surface of the first passivation layer that is away from the substrate;

[0020] A sub-insulating layer, the sub-insulating layer being disposed on a surface of the first sub-metal layer away from the substrate;

[0021] A second sub-metal layer is disposed on a surface of the sub-insulating layer away from the substrate;

[0022] A portion of the connecting line covers the sidewall of the first sub-metal layer, the sidewall of the sub-insulating layer, and the sidewall of the second sub-metal layer.

[0023] Furthermore, the thickness of the first sub-metal layer is greater than the thickness of the second sub-metal layer.

[0024] The beneficial effects of this application are:

[0025] This application provides a display panel in which an array substrate is provided, including multiple connecting lines. The connecting lines are disposed on a surface of the first passivation layer away from the substrate. The multiple connecting lines are spaced apart in a second direction of the display panel, and the connecting lines are electrically connected to multiple metal light-shielding portions and the common electrode layer. This allows the potential of the multiple metal portions of the metal light-shielding layer to be equal to the potential of the common electrode layer, thereby preventing the metal light-shielding light potential from floating and improving the problem of electrostatic accumulation of the metal light-shielding light in the display panel. Attached Figure Description

[0026] Figure 1 This is a top view of the display panel of this application;

[0027] Figure 2 yes Figure 1 The cross-sectional view of the display panel shown;

[0028] Figure 3 yes Figure 2 The diagram shows the structure of the array substrate of the display panel.

[0029] Figure 4 This is a schematic diagram of the structure of the display panel recess without connecting lines in this application;

[0030] Figure 5 This is a schematic diagram of the first structure of the setting connection line of the display panel in this application;

[0031] Figure 6 This is a schematic diagram of a second structure for the connection line of the display panel in this application;

[0032] Figure 7 This is a schematic diagram of the structure of the metal light-shielding part of the metal light-shielding layer of the display panel of this application.

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

[0034] 10-Display panel; 100-Array substrate; 110-Substrate; 120-Thin film transistor; 130-Data line; 140-First passivation layer; 150-Metal light-shielding layer; 151-Metal light-shielding part; 1511-First sub-metal layer; 1512-Sub-insulating layer; 1513-Second sub-metal layer; 160-Common electrode layer; 170-Connecting line; 180-Protective layer; 181-Protective part; 190-Groove; 191-First planarization layer; 192-Second passivation layer; 193-Pixel electrode; 194-Third passivation layer; 200-Opposing substrate. Detailed Implementation

[0035] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings. The technical solutions described below are for illustrative purposes only and should not be construed as limiting the scope of protection of this application.

[0036] Furthermore, the terms "first," "second," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different technical features. The terms "multiple" and similar words indicate two or more unless otherwise expressly specified.

[0037] Embodiments of this application provide a display panel 10, see reference. Figures 1-3The display panel 10 includes an array substrate 100 and a counter substrate 200, the counter substrate 200 being located on one side of the array substrate 100. The array substrate 100 includes a substrate 110 and multiple data lines 130, the multiple data lines 130 being spaced apart on the substrate 110. The array substrate 100 also includes a first passivation layer 140, a metal light-shielding layer 150, a common electrode layer 160, and multiple connecting lines 170. The first passivation layer 140 is disposed on the film layer containing the data lines. The metal light-shielding layer 150 is disposed on a surface of the first passivation layer 140 away from the substrate 110, and the metal light-shielding layer 150 includes multiple metal light-shielding portions 151. Multiple metal light-shielding portions 151 are spaced apart in the first direction X of the display panel 10; the common electrode layer 160 is disposed on the side of the metal light-shielding layer 150 away from the substrate 110; the connecting line 170 is disposed on the surface of the first passivation layer 140 away from the substrate 110, and multiple connecting lines 170 are spaced apart in the second direction Y of the display panel 10, and the connecting lines 170 are electrically connected to the multiple metal light-shielding portions 151 and the common electrode layer 160, and the first direction and the second direction of the display panel intersect; from a top view of the display panel 10, at least a portion of the metal light-shielding portions 151 overlaps with the data line 130.

[0038] In conventional display panels, to reduce reflection of ambient light, a metal light-shielding element is fabricated on the array substrate 100 side to shield the data lines 130. This prevents the data lines 130 from reflecting ambient light. However, the metal light-shielding element is prone to crosstalk with the electrode lines of the array substrate 100, causing the potential of the metal light-shielding element to float and resulting in static electricity accumulation. Therefore, the technical solution of this application includes multiple connecting lines 170 on the array substrate 100, with the connecting lines 170 disposed on the surface of the first passivation layer 140 away from the substrate 110. The multiple connecting lines 170 are spaced apart in the second direction Y of the display panel 10, and the connecting lines 170 are electrically connected to multiple metal light-shielding portions 151 and the common electrode layer 160. This ensures that the potential of the multiple metal portions of the metal light-shielding layer 150 is equal to the potential of the common electrode layer 160, preventing the potential of the metal light-shielding element from floating and thus improving the problem of static electricity accumulation in the metal light-shielding element of the display panel 10.

[0039] In this embodiment, the multiple data lines 130 are arranged at intervals in the first direction X.

[0040] In this embodiment, the angle formed by the first direction X and the second direction Y is 90°.

[0041] In this embodiment, reference Figure 3The array substrate 100 further includes a protective layer 180, which is disposed on a surface of the metal light-shielding layer 150 away from the substrate 110. The protective layer 180 includes a plurality of protective portions 181, which are spaced apart in the first direction X of the display panel 10. When viewed from above the display panel 10, the protective portions 181 overlap with the metal light-shielding portions 151. When fabricating the connecting line 170, a chemical solution is needed to remove excess material used for fabricating the connecting line 170. This chemical solution corrodes the metal sublayer on the surface of the metal light-shielding layer 150, leading to an increase in the reflectivity of the metal light-shielding layer 150. Therefore, in this embodiment, the array substrate 100 is further provided with a protective layer 180. The protective layer 180 is disposed on a surface of the metal light-shielding layer 150 away from the substrate 110. The protective layer 180 includes a plurality of protective portions 181, which are spaced apart in the first direction X of the display panel 10. When viewing the display panel 10 from above, the protective portions 181 overlap with the metal light-shielding portions 151, so that the protective portions 181 can protect the metal light-shielding portions 151. When fabricating the connecting line 170, the chemical solution can be used to prevent corrosion of the surface of the metal light-shielding layer 150, thus avoiding an increase in the reflectivity of the metal light-shielding layer 150 and improving the display effect of the display panel 10.

[0042] In this embodiment, a groove 190 is formed between two adjacent metal light-shielding portions 151, wherein at least a portion of the connecting line 170 fills the groove 190.

[0043] In this embodiment, reference Figure 3 , Figure 4 , Figure 6 A portion of the connecting line 170 fills the groove 190, and a portion of the connecting line 170 covers the protective portion 181.

[0044] In this embodiment, reference Figure 3 , Figure 4 , Figure 5 The connecting line 170 fills the groove 190, and the surface of the connecting line 170 away from the substrate 110 is flush with the surface of the protective layer 180 away from the substrate 110. In this embodiment, the material of the connecting line 170 is the same as the material of the protective layer 180. By setting the material of the connecting line 170 to the same material as the protective layer 180, the connecting line 170 and the protective layer 180 can be manufactured simultaneously, thereby reducing the difficulty of manufacturing the display panel 10.

[0045] In this embodiment, the protective layer 180 is made of a transparent conductive material. By using a transparent conductive material for the protective layer 180, the interference of the protective layer 180 on the light-shielding effect of the metal light-shielding layer 150 can be reduced. Furthermore, the protective layer 180 can also function as a connector between the metal light-shielding layer 150 and the connecting line 170, thereby improving the stability of the connection between the connecting line 170 and the metal light-shielding part 151. Preferably, the material of the protective layer 180 is ITO (Indium Tin Oxide) or IZO (Indium Doped Zinc Oxide).

[0046] In this embodiment, reference Figure 6 The width D1 of the connecting line 170 is greater than the width D2 of the protective part 181. By setting the width D1 of the connecting line 170 to be greater than the width D2 of the protective part 181, compared to a solution where the width of the connecting line 170 is no greater than the width of the protective part 181, the contact area between the connecting line 170 and the metal light-shielding part 151 is increased, thereby improving the stability of the connection between the connecting line 170 and the metal light-shielding part 151.

[0047] In this embodiment, reference Figure 3 , Figure 6 The metal light-shielding portion 151 includes a first sub-metal layer 1511, a sub-insulating layer 1512, and a second sub-metal layer 1513; the first sub-metal layer 1511 is disposed on a surface of the first passivation layer 140 away from the substrate 110; the sub-insulating layer 1512 is disposed on a surface of the first sub-metal layer 1511 away from the substrate 110; the second sub-metal layer 1513 is disposed on a surface of the sub-insulating layer 1512 away from the substrate 110; wherein a portion of the connecting line 170 covers the sidewalls of the first sub-metal layer 1511, the sidewalls of the sub-insulating layer 1512, and the sidewalls of the second sub-metal layer 1513. By setting a portion of the connecting line 170 to cover the sidewalls of the first sub-metal layer 1511, the sub-insulating layer 1512, and the second sub-metal layer 1513, both the first sub-metal layer 1511 and the second sub-metal layer 1513 of the metal light-shielding part 151 can be electrically connected to the common electrode layer 160 through the connecting line 170. This ensures that the potentials of the first sub-metal layer 1511 and the second sub-metal layer 1513 are equal to the potential of the common electrode layer, thus preventing the potentials of the first sub-metal layer 1511 and the second sub-metal layer 1513 from floating.

[0048] In this embodiment, reference Figure 7The thickness D3 of the first sub-metal layer 1511 is greater than the thickness D4 of the second sub-metal layer 1513. By setting the thickness D3 of the first sub-metal layer 1511 to be greater than the thickness D4 of the second sub-metal layer 1513, the first sub-metal layer 1511 and the connecting line 170 have a larger contact area, thereby improving the stability of the contact between the connecting line 170 and the first sub-metal layer 1511.

[0049] In this embodiment, the area of ​​the first sub-metal layer 1511 is larger than the areas of the second sub-metal layer 1513 and the sub-insulating layer 1512. By setting the area of ​​the first sub-metal layer 1511 to be larger than the areas of the second sub-metal layer 1513 and the sub-insulating layer 1512, the contact area between the first sub-metal layer 1511 and the connecting line 170 can be increased, thereby improving the stability of the contact between the connecting line 170 and the first sub-metal layer 1511.

[0050] In this embodiment, reference Figure 3 The width of the metal light-shielding layer 150 is greater than the width of the data line 130.

[0051] In this embodiment, the array substrate 100 further includes a thin-film transistor 120 disposed on the substrate 110.

[0052] In this embodiment, reference Figure 3 The array substrate 100 further includes a first planarization layer 191, which is disposed on a surface of the first passivation layer 140 near the substrate 110.

[0053] In this embodiment, reference Figure 3 The array substrate 100 further includes a second passivation layer 192, which is disposed on a surface of the first passivation layer 140 away from the substrate 110.

[0054] In this embodiment, reference Figure 3 The array substrate 100 further includes a pixel electrode 193, which is disposed on a surface of the second passivation layer 192 away from the substrate 110.

[0055] In this embodiment, reference Figure 3 The array substrate 100 further includes a third passivation layer 194, which is disposed on a surface of the second passivation layer 192 away from the substrate 110, and covers the pixel electrode 193.

[0056] The specific embodiments of this application have been described in detail above. The embodiments disclosed above are merely preferred embodiments of this application. Those skilled in the art can make many modifications and improvements without departing from the concept of this application. All such modifications and improvements fall within the scope of protection defined by the claims of this application.

Claims

1. A display panel, characterized in that, The array includes an array substrate and a counter substrate, the counter substrate being located on one side of the array substrate. The array substrate includes a substrate and multiple data lines, the multiple data lines being spaced apart on the substrate. The array substrate further includes: A first passivation layer is disposed on the film layer on which the data line is located; A metal light-shielding layer is disposed on a surface of the first passivation layer away from the substrate. The metal light-shielding layer includes a plurality of metal light-shielding portions, which are spaced apart in a first direction of the display panel. A common electrode layer is disposed on the side of the metal light-shielding layer away from the substrate; Multiple connecting lines are disposed on a surface of the first passivation layer away from the substrate. The multiple connecting lines are spaced apart in the second direction of the display panel, and the connecting lines are electrically connected to multiple metal light-shielding portions and the common electrode layer. The first direction and the second direction of the display panel intersect. From a top-down view of the display panel, at least a portion of the metal light-shielding portion overlaps with the data line.

2. The display panel according to claim 1, characterized in that, The array substrate further includes a protective layer disposed on a surface of the metal light-shielding layer away from the substrate. The protective layer includes a plurality of protective portions, which are spaced apart in the first direction of the display panel. From a top-down view of the display panel, the protective portion overlaps with the metal light-shielding portion.

3. The display panel according to claim 2, characterized in that, A groove is formed between two adjacent metal light-shielding portions, wherein at least a portion of the connecting line fills the groove.

4. The display panel according to claim 3, characterized in that, A portion of the connecting line fills the groove, and a portion of the connecting line covers the protective portion.

5. The display panel according to claim 3, characterized in that, The connecting line fills the groove, and the surface of the connecting line away from the substrate is flush with the surface of the protective layer away from the substrate.

6. The display panel according to claim 2, characterized in that, The connecting wire is made of the same material as the protective layer.

7. The display panel according to claim 2, characterized in that, The protective layer is made of a transparent conductive material.

8. The display panel according to claim 2, characterized in that, The width of the connecting line is greater than the width of the protective part.

9. The display panel according to claim 1, characterized in that, The metal light-shielding part includes: A first sub-metal layer is disposed on a surface of the first passivation layer that is away from the substrate; A sub-insulating layer, the sub-insulating layer being disposed on a surface of the first sub-metal layer away from the substrate; A second sub-metal layer is disposed on a surface of the sub-insulating layer away from the substrate; A portion of the connecting line covers the sidewall of the first sub-metal layer, the sidewall of the sub-insulating layer, and the sidewall of the second sub-metal layer.

10. The display panel according to claim 9, characterized in that, The thickness of the first sub-metal layer is greater than the thickness of the second sub-metal layer.

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