Display panel and display device

By setting a region that does not include metal in the array layer of the OLED display panel and avoiding the metal structure in the array layer, the problems of electrostatic charge accumulation and breakdown of the film layer are solved, and the electrostatic reliability and overall reliability of the display panel are improved.

CN114883304BActive Publication Date: 2025-05-23WUHAN TIANMA MICRO ELECTRONICS CO LTD
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Patent Information

Application Number
CN202210472775.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-04-29
Publication Date
2025-05-23
Estimated Expiration
2042-04-29

AI Technical Summary

Technical Problem

The OLED display panel generates static electricity during the contact and separation between the mask plate and the support column, causing the electrostatic charge to accumulate and break down the film layer, forming cracks, which in turn affects the reliability of the display panel.

Method used

By providing an area without metal in the array layer of the display panel, and avoiding the support portion from the metal structure in the array layer, the conduction speed of static charge is reduced, and static electricity is avoided to be transmitted to other areas through the metal.

Benefits of technology

It effectively improves the electrostatic reliability of the OLED display panel, prevents electrostatic breakdown of the film layer, reduces the occurrence of dark spots, and improves the overall reliability of the display panel.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the present invention provides a display panel and a display device, which relates to the field of display technology and is used to improve the electrostatic reliability of the display panel. The display panel includes a substrate; an array layer, which is located on one side of the substrate; the array layer includes a first area and a second area, the first area does not include metal, and the second area includes metal; a support portion, which is located on a side of the array layer away from the substrate; the orthographic projection of the support portion on the plane where the array layer is located is located in the first area.
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Description

[Technical field]

[0001] The present invention relates to the field of display technology, and in particular to a display panel and a display device. [Background technology]

[0002] With the continuous development of science and technology, more and more display devices are widely used in people's daily life and work, becoming an indispensable tool for people today. Organic Light-Emitting Diode (OLED) display panels are widely used in the field of display technology due to their many advantages such as active luminescence, high contrast, and no viewing angle limitation.

[0003] The production of some film layers in the OLED display panel requires a mask plate. During the manufacturing process, the mask plate will be placed on the surface of the support column (Photo Spacer, PS for short) of the display panel. The contact and separation between the mask plate and the support column will generate static electricity. When the static charge accumulates to a certain level, the large current generated by the discharge can easily break through the film layer and cause cracks. During the reliability test, water vapor will enter the display panel through the cracks, causing dark spots. [Summary of the invention]

[0004] In view of this, embodiments of the present invention provide a display panel and a display device to improve the electrostatic reliability of an OLED display panel.

[0005] In one aspect, an embodiment of the present invention provides a display panel, including:

[0006] substrate;

[0007] An array layer, located on one side of the substrate; the array layer includes a first region and a second region, the first region does not include metal, and the second region includes metal;

[0008] The support portion is located at a side of the array layer away from the substrate; the orthographic projection of the support portion on the plane where the array layer is located is located in the first area.

[0009] On the other hand, an embodiment of the present invention provides a display device including the above-mentioned display panel.

[0010] The display panel and display device provided by the embodiments of the present invention can reduce the conduction speed of static charge by setting the support part away from the metal in the array layer, and can prevent static electricity from being transferred to other areas of the array layer through the metal located under the support part, which is beneficial to ensuring the structural reliability and electrical reliability of each structure in the array layer.

Brief Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 A schematic cross-sectional view of a display area of ​​a display panel provided by an embodiment of the present invention;

[0013] Figure 2 A schematic cross-sectional view of a non-display area of ​​a display panel provided by an embodiment of the present invention;

[0014] Figure 3 A schematic diagram of the relative positions of a mask plate and a display panel provided in an embodiment of the present invention;

[0015] Figure 4 A partially enlarged schematic diagram of a display panel provided by an embodiment of the present invention;

[0016] Figure 5 for Figure 4 A schematic cross-sectional view along BB';

[0017] Figure 6 A partially enlarged schematic diagram of another display panel provided by an embodiment of the present invention;

[0018] Figure 7 A partial enlarged schematic diagram of another display panel provided by an embodiment of the present invention;

[0019] Figure 8 for Figure 7 A schematic cross-sectional view along CC';

[0020] Fig. 9 A schematic diagram of a display device provided by an embodiment of the present invention. [Specific implementation method]

[0021] In order to better understand the technical solution of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] It should be clear that 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0024] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0025] It should be understood that although the terms first, second, etc. may be used to describe the shielding portion in the embodiments of the present invention, the shielding portions should not be limited to these terms. These terms are only used to distinguish the shielding portions from each other. For example, without departing from the scope of the embodiments of the present invention, the first shielding portion may also be referred to as the second shielding portion, and similarly, the second shielding portion may also be referred to as the first shielding portion.

[0026] An embodiment of the present invention provides a display panel, which can increase the antistatic ability of the display panel and improve the reliability of the display panel by adjusting the relative position relationship between the support part and the metal structure in the array layer so that the support part is arranged corresponding to the area in the array layer where no metal is arranged.

[0027] The display panel provided by the embodiment of the present invention includes a display area and a non-display area. The display area includes a light emitting device. The non-display area at least partially surrounds the display area. The non-display area includes a peripheral circuit. For example, Figure 1 and Figure 2 As shown, Figure 1 A cross-sectional schematic diagram of a display area of ​​a display panel provided by an embodiment of the present invention, Figure 2 A cross-sectional schematic diagram of a non-display area of ​​a display panel provided in an embodiment of the present invention, the display panel comprises a substrate 1, an array layer 2, a support portion 3 and a display layer 4. The array layer 2 is located on one side of the substrate 1. The support portion 3 and the display layer 4 are both located on the side of the array layer 2 away from the substrate 1.

[0028] Devices such as signal lines, thin film transistors and storage capacitors are arranged in the array layer 2. Accordingly, the array layer 2 includes a plurality of sub-film layers, and different structures of the above-mentioned signal lines, thin film transistors and storage capacitors are formed by different sub-film layers in the array layer 2. Figure 1 and Figure 2 As shown, the array layer 2 includes a first metal layer M1, a second metal layer M2 and a third metal layer M3 which are sequentially stacked along the thickness direction of the display panel.

[0029] In the display area AA, the array layer 2 includes first signal lines and a pixel driving circuit. The first signal lines include scan lines, data lines, and power supply voltage lines, etc. The pixel driving circuit includes a thin film transistor 20 and a storage capacitor.

[0030] In the non-display area NA, the array layer 2 includes a second signal line and a peripheral circuit. The second signal line includes a fixed level signal line and a clock signal line. The peripheral circuit includes a scanning drive circuit or a light-emitting drive circuit. The scanning drive circuit and the light-emitting drive circuit each include a plurality of cascaded drive units. The drive unit also includes a thin film transistor 20 and a storage capacitor.

[0031] like Figure 1 and Figure 2 As shown, the gate of the thin film transistor 20 is formed in the first metal layer M1. The source and drain of the thin film transistor 20 are formed in the third metal layer M3. The array layer 2 also includes a semiconductor layer, in which a channel structure of the thin film transistor 20 is formed. The first signal line, the second signal line and the storage capacitor can be arranged in at least two layers of the first metal layer M1, the second metal layer M2 and the third metal layer M3 according to different design requirements. Figure 1 As an example, two plates of the storage capacitor C are respectively disposed on the first metal layer M1 and the second metal layer M2 .

[0032] The array layer 2 further includes multiple insulating layers, and any two adjacent metal layers are separated by an insulating layer. Exemplarily, the insulating layer includes an organic layer or an inorganic layer.

[0033] In the display area AA, if Figure 1 As shown, the display layer 4 includes a light-emitting device 40 and a pixel definition layer 41. The pixel definition layer 41 includes a plurality of openings 410. The light-emitting device 40 includes a first electrode 401, a second electrode 402 and a functional layer 403 arranged in a stacked manner. At least a portion of the functional layer 403 is located in the opening 410. The functional layer 403 includes a light-emitting layer. Exemplarily, the first electrode 401 is located on a side of the second electrode 402 close to the substrate 1. The first electrode 401 may be an anode, and the second electrode 402 may be a cathode. The above-mentioned opening 410 at least exposes at least a portion of the first electrode 401. The first electrode 401 is electrically connected to the corresponding thin film transistor 20 in the pixel driving circuit. Exemplarily, the above-mentioned light-emitting layer includes any one or more of a white light-emitting layer capable of emitting white light, a red light-emitting layer capable of emitting red light, a green light-emitting layer capable of emitting green light, and a blue light-emitting layer capable of emitting blue light. Optionally, the functional layer 403 also includes any one or more of a hole transport layer, a hole injection layer, an electron injection layer, and an electron transport layer.

[0034] When manufacturing the display panel, a substrate 1 is first provided. Then, an array layer 2 including a plurality of sub-membrane layers is formed on one side of the substrate 1. Then, a pixel definition layer 41 is formed on a side of the array layer 2 away from the substrate 1, and the pixel definition layer 41 is patterned to form a plurality of openings 410, wherein the openings 410 can expose at least a portion of the first electrode 401. In addition, a support portion 3 is formed on a side of the pixel definition layer 41 away from the substrate 1. Then, a functional layer 403 in contact with the first electrode 401 is formed in the opening 410 of the pixel definition layer 41. Exemplarily, the functional layer 403 can be prepared by an evaporation process. During evaporation, such as Figure 3 As shown, Figure 3 A schematic diagram of the relative positions of a mask plate and a display panel provided in an embodiment of the present invention, wherein the mask plate 5 is placed on the surface of the support portion 3 to avoid large-area contact between the mask plate 5 and the display panel. Figure 3 The opening 410 of the pixel definition layer 41 is corresponding to the opening 410, so that the functional material including the light-emitting material is deposited at the opening 400 to form a film to form a functional layer 403. Then, the second electrode 402 of the light-emitting device 40 is prepared.

[0035] In the process of implementing the embodiment of the present invention, the inventors have found that in the evaporation process, if Figure 3 As shown, the contact and separation operation between the mask plate 5 and the support part 3 will cause friction between the two, and the friction will generate static electricity, resulting in static electricity accumulation on the support part 3. The static electricity is transmitted to the inside of the array layer 2, and after accumulating to a certain extent, it will break through the film layer in the array layer 2. The cracks formed after the film layer is broken through will cause water vapor to enter, and in addition, it will also affect the electrical performance of some devices.

[0036] In the embodiment of the present invention, Figure 1 and Figure 2 As shown, the array layer 2 includes a first area A1 and a second area A2, and the first area A1 does not include metal. Exemplarily, the first area A1 includes multiple organic layers and / or multiple inorganic layers stacked. The second area A2 includes metal. Among them, the metal can be used to form any one or more electronic structures of the above-mentioned signal lines, storage capacitors, and thin-film transistors that play a role in signal transmission. In other words, the first area A1 does not set the above-mentioned first signal line, second signal line, storage capacitor, thin-film transistor and other electronic devices. Exemplarily, the first area A1 can be the gap between two adjacent metal structures in the array layer 2. The orthographic projection of the support portion 3 on the plane where the array layer 2 is located is located in the first area A1.

[0037] The display panel provided in the embodiment of the present invention can reduce the conduction speed of static charge by setting the support part 3 away from the metal in the array layer 2, and can prevent static electricity from being transferred to other areas of the array layer 2 through the metal located under the support part 3, which is beneficial to ensuring the structural reliability and electrical reliability of each structure in the array layer 2.

[0038] In the embodiment of the present invention, Figure 1 and Figure 2 As shown, both the display area AA and the non-display area NA of the display panel include a support portion 3. Moreover, in both the display area AA and the non-display area NA, the number of the support portions 3 can be multiple. Figure 1 and Figure 2 Only one supporting portion 3 is shown as an example.

[0039] For example, Figure 1 As shown, the display area AA of the display panel includes the above-mentioned first area A1. That is, the embodiment of the present invention can make the support portion 3 located in the display area AA not overlap with the metal in the array layer 2 in a plane perpendicular to the substrate 1. When the support portion 3 is provided in the display area AA, along the direction perpendicular to the plane where the substrate 1 is located, the support portion 3 does not overlap with the opening 410 of the pixel definition layer 41 and the metal in the array layer 2.

[0040] For example, Figure 2 As shown, the non-display area NA of the display panel includes the first area A1. That is, the embodiment of the present invention can make the support portion 3 located in the non-display area NA and the metal in the array layer 2 not overlap in a plane perpendicular to the substrate 1.

[0041] Exemplarily, the embodiment of the present invention may set a smaller number of thin film transistors in the pixel driving circuit or peripheral circuit at a position closer to the support portion 3. For example, the embodiment of the present invention may set the pixel driving circuit at a position closer to the support portion 3 in the display panel to a 2T1C structure including two thin film transistors and one storage capacitor, and set the pixel driving circuit at a greater distance from the support portion 3 to a 7T1C structure including seven thin film transistors and one storage capacitor.

[0042] Alternatively, the embodiment of the present invention may also reduce the area of ​​the metal structure at a position closer to the support portion 3 to leave space for the setting of the support portion 3. For example, the embodiment of the present invention may set the width of the signal line at a position closer to the support portion 3 to be smaller than the width of the signal line at a position farther from the support portion 3. Alternatively, the area of ​​the capacitor plate at a position closer to the support portion 3 is set to be smaller than the area of ​​the capacitor plate at a position farther from the support portion 3.

[0043] Alternatively, the embodiment of the present invention may also reduce the spacing between adjacent metal structures at positions closer to the support portion 3 to leave space for the arrangement of the support portion 3. For example, the embodiment of the present invention may set the spacing between signal lines at positions closer to the support portion 3 to be smaller than the spacing between signal lines at positions farther from the support portion 3.

[0044] Exemplarily, the embodiment of the present invention can make the density of the first area A1 in the non-display area NA greater than the density of the first area A1 in the display area AA. The density of the first area A1 is the area occupied by the first area A1 in the area per unit area in the display panel. The area of ​​the first area A1 is the area of ​​the positive projection of the support portion 3 in the first area A1 on the plane where the substrate 1 is located. Optionally, the embodiment of the present invention can make the area of ​​the support portion 3 in the non-display area NA1 greater than the area of ​​the support portion 3 in the display area AA. The area of ​​the support portion 3 refers to the area of ​​the positive projection of the support portion 3 on the plane where the substrate 1 is located. In this way, while improving the electrostatic reliability of the display panel, the influence of the setting of the support portion 3 on the pixel drive circuit or signal line in the display area AA in the array layer 2 can be reduced or eliminated. For example, in the embodiment of the present invention, a larger number of pixel drive circuits can be set in the array layer 2 to achieve a high-resolution design of the display panel. Alternatively, a larger number of thin film transistors can be set in the pixel drive circuit so that the pixel drive circuit can realize functions such as threshold compensation, which is conducive to improving the display characteristics of the light-emitting device 40.

[0045] For example, Figure 4 and Figure 5 As shown, Figure 4 A partially enlarged schematic diagram of a display panel provided by an embodiment of the present invention, Figure 5 for Figure 4A cross-sectional schematic diagram along BB', the display panel also includes a first shielding portion 61, and the orthographic projection of the first shielding portion 61 on the plane where the display panel is located at least partially surrounds the above-mentioned support portion 3. The setting of the first shielding portion 61 can prevent the static electricity at the support portion 3 from passing over the first shielding portion 61 and being conducted to other areas in the array layer 2. That is, the setting of the first shielding portion 61 can limit the static electricity at the support portion 3 to the position near the support portion 3 as much as possible. Since the preparation of the functional layer 403 including the light-emitting layer needs to be carried out in batches, for example, when the light-emitting layer includes a red light-emitting layer and a green light-emitting layer, the red light-emitting layer and the green light-emitting layer need to be formed in steps. Therefore, the contact and separation of the above-mentioned mask plate 5 and the support portion 3 will also occur multiple times. After the previous evaporation is completed, the mask plate 5 is removed from the surface of the support portion 3. When the next evaporation is performed, the mask plate 5 and the support portion 3 are contacted again. The mask plate is usually made of a metal material, and the mask plate 5 is grounded during evaporation. The static electricity generated at the support portion 3 by the previous evaporation process will be neutralized when the mask plate 5 and the support portion 3 are in contact again, thereby reducing or even eliminating the static electricity at the support portion 3, and avoiding the accumulation of static electricity at the support portion 3. Therefore, the configuration provided by the embodiment of the present invention can reduce the conduction range of static electricity, reduce the accumulation of static electricity in the array layer 2, and avoid the influence of static electricity on the film structure in the array layer 2.

[0046] Optional, such as Figure 4 As shown, the shape of the orthographic projection of the first shielding portion 61 on the plane where the substrate 1 is located includes a ring shape, so as to limit the diffusion of static electricity at the supporting pillar 3 from multiple directions.

[0047] Optional, such as Figure 6 As shown, Figure 6 A partial enlarged schematic diagram of another display panel provided in an embodiment of the present invention, the display panel also includes a first tip portion 71, and the first tip portion 71 is connected to the first shielding portion 61. Along the direction from the support portion 3 to the first shielding portion 61, the width of the first tip portion 71 gradually decreases to form a first tip portion 71 with a sharp structure. The width direction of the first tip portion 71 is perpendicular to the extension direction of the first tip portion 71. Exemplarily, the extension direction of the first tip portion 71 can be perpendicular to the extension direction of the first shielding portion 61 at the position where the first tip portion 71 is located. When the static electricity accumulated at the layout position of the first shielding portion 61 is too much and reaches the tip discharge voltage, the static electricity can be tip-discharged at the first tip portion 71 to reduce the amount of static electricity accumulated at the support portion 3.

[0048] Optional, continue to refer to Figure 6As shown, the display panel further includes a second shielding portion 62 and a second tip portion 72. The second shielding portion 62 is located on a side of the first shielding portion 61 away from the support portion 3. The second tip portion 72 is connected to the second shielding portion 62. Along the direction in which the second shielding portion 62 points to the support portion 3, the width of the second tip portion 72 gradually decreases. The width direction of the second tip portion 72 is perpendicular to the extension direction of the second tip portion 72. Exemplarily, the extension direction of the second tip portion 72 may be perpendicular to the extension direction of the second shielding portion 62 at the location of the second tip portion 72. When too much static electricity is accumulated in the first shielding portion 61, the second tip portion 72 may guide the static electricity into the second shielding portion 62 and prevent the static electricity at the support portion 3 from spreading to a wider range beyond the second shielding portion 62.

[0049] Optional, such as Figure 6 As shown, the first tip portion 71 and the second tip portion 72 are disposed opposite to each other to improve the conduction performance of static electricity between the first shielding portion 61 and the second shielding portion 62 .

[0050] Optionally, in the embodiment of the present invention, the first shielding portion 61 and the second shielding portion 62 may be arranged in the same layer. Such an arrangement is conducive to reducing the thickness of the display panel and simplifying the manufacturing process of the display panel.

[0051] For example, Figure 6 As shown, the first shielding portion 61 and the second shielding portion 62 are parallel to each other. This arrangement not only surrounds the support portion 3 to prevent static electricity at the support portion 3 from spreading to a wider range, but also helps to reduce the area occupied by the first shielding portion 61 and the second shielding portion 62 in the display panel.

[0052] For example, Figure 5 As shown, in the embodiment of the present invention, the first shielding part 61 can be located on the side of the thin film transistor 20 away from the substrate 1. In this way, the first shielding part 61 can be located on the relatively upper film layer in the array layer 2, which can avoid affecting the design of the peripheral circuit or pixel driving circuit in the array layer 2 due to the setting of the first shielding part 61. Moreover, compared with the film layer where the various structures included in the thin film transistor 20 in the array layer 2 are located, the film layer in the array layer 2 where the thin film transistor 20 is not arranged has fewer metal structures. Therefore, by setting the first shielding part 61 on the side of the thin film transistor 20 away from the substrate 1, the influence of the setting of the first shielding part 61 on the existing structure in the display panel can be minimized. In addition, by setting the first shielding part 61 on the side of the thin film transistor 20 away from the substrate 1, the first shielding part 61 can be closer to the support part 3 as the static electricity source, which is more conducive to blocking the static electricity at the support part 3 from being conducted outward.

[0053] Optionally, the embodiment of the present invention can make the first shielding part 61 and the first electrode 401 of the light-emitting device 40 be arranged in the same layer. The first shielding part 61 and the first electrode 401 of the light-emitting device 40 are arranged in the same layer, which means that the first shielding part 61 and the first electrode 401 are made of the same material and are formed by the same process. The first shielding part 61 and the first electrode 401 transmit different electrical signals, and the two are not connected to each other. The first shielding part 61 and the first electrode 401 of the light-emitting device 40 are made in the same layer, and there is no need to add an additional film layer in the display panel to form the first shielding part 61, which is conducive to reducing the thickness of the display panel and realizing the thinning of the display panel, and can also reduce the process cost and reduce the production process of the display panel.

[0054] Exemplarily, the signal transmitted by the first shielding portion 61 is a low-level signal. Optionally, the first shielding portion 61 can be electrically connected to any one of the low-level signal terminal VGL, the ground signal terminal GND, and the first power supply voltage signal terminal PVEE. Among them, the low-level signal terminal VGL can be electrically connected to the corresponding signal terminal in the peripheral circuit including the scanning drive circuit or the light-emitting drive circuit. The ground signal terminal GND can be electrically connected to the ground signal line located at the periphery of the display panel. The first power supply voltage signal terminal PVEE can be electrically connected to the second electrode 402 of the light-emitting device 40. With such a configuration, there is no need to add a new signal terminal in the display panel, which is conducive to reducing the complexity of the display panel.

[0055] Exemplarily, the embodiment of the present invention can make the first shielding part 61 electrically connect the first power supply voltage signal terminal PVEE and the second electrode 402 of the light emitting device 40, that is, make the first shielding part 61 and the second electrode 402 of the light emitting device 40 transmit the same signal. In this way, the first shielding part 61 can be reused as the second electrode connecting part. That is to say, in the embodiment of the present invention, the first shielding part 61 can not only shield the static electricity at the support part 3 from propagating to other areas, thereby improving the electrostatic reliability of the display panel, but also play a role in transmitting the second power supply voltage signal required for the light emitting device 40 to work.

[0056] Optional, such as Figure 4As shown, the orthographic projection of the first shielding portion 61 on the plane where the substrate 1 is located is the first projection, and the orthographic projection of the support portion 3 on the plane where the substrate 1 is located is the second projection, and the shortest distance between the first projection and the second projection is greater than 0. That is, the first projection and the second projection do not contact each other. When the first shielding portion 61 is electrically connected to the first power supply voltage signal terminal PVEE and the second electrode 402 of the light-emitting device 40, that is, when the first shielding portion 61 is reused as the second electrode connecting portion, if the first projection and the second projection are in contact with each other, the static charge on the support portion 3 will be conducted to the display area AA of the display panel through the first shielding portion 61, affecting the various structures in the display area AA. By setting the first projection and the second projection at a certain distance, the embodiment of the present invention can limit the static electricity as much as possible near the support portion 3 to avoid affecting more structures in the display panel. Moreover, in combination with Figure 3 As shown, when the mask plate 5 is placed on the surface of the support part 3 again for the evaporation process, the static electricity at the support part 3 can be conducted away by the mask plate 5, and will not cause excessive accumulation of static electricity at the support part 3.

[0057] For example, Figure 7 and Figure 8 As shown, Figure 7 A partial enlarged schematic diagram of another display panel provided by an embodiment of the present invention, Figure 8 for Figure 7 A cross-sectional schematic diagram along CC' shows that the display panel further includes an organic layer 8, and the organic layer 8 is located on the side of the support portion 3 close to the substrate 1. Exemplarily, the organic layer 8 is in contact with the support portion 3. The organic layer 8 can provide a flat bearing surface for the support portion 3, which can improve the stability of the support portion 3. Moreover, compared with the inorganic layer, the organic layer is less susceptible to static breakdown. Therefore, while the organic layer 8 is used to support the support portion 3, the reliability of the film layer at the position where the support portion 3 is located can also be guaranteed.

[0058] Illustratively, in the embodiment of the present invention, the organic layer 8 may be disposed in the same layer as the pixel definition layer 41 located in the display area AA.

[0059] As mentioned above, in an embodiment of the present invention, the first shielding portion 61 can be configured as an annular structure that at least partially surrounds the support portion 3. Such a configuration can not only suppress the outward diffusion of static electricity at the support portion 3, but also, during the preparation process of the display panel, if gas escapes from the organic layer 8, the gas can be released through the annular structure formed by the first shielding portion 61, thereby avoiding the formation of bulges in the first shielding portion 61.

[0060] Optional, such as Figure 7 and Figure 8As shown, the organic layer 8 includes a groove 80, and the orthographic projection of the groove 80 on the plane where the substrate 1 is located is located between the first projection and the second projection corresponding to the first shielding portion 61 and the support portion 3. The groove 80 acts as an obstacle to the conduction of static electricity, which is conducive to limiting the static electricity near the support portion 3 as much as possible. When preparing the display panel, combined with Figure 3 As shown, when the support portion 3 and the mask plate 5 are in contact again for another evaporation, the static electricity at the support portion 3 can be conducted to the outside through the mask plate 5. For example, Figure 8 As shown, in the embodiment of the present invention, the groove 80 can penetrate the organic layer 8. Such a configuration can isolate the support portion 3 from the surrounding conductive structures.

[0061] Optional, such as Figure 8 As shown, along the direction perpendicular to the plane where the substrate 1 is located, the organic layer 8 is located between the support portion 3 and the first shielding portion 61. When the first shielding portion 61 is reused as the second electrode connecting portion, for example, Figure 7 and Figure 8 As shown, the organic layer 8 further includes a through hole 81, and the through hole 81 is used to expose at least a portion of the first shielding portion 61 so as to electrically connect the first shielding portion 61 to a second electrode (not shown) of the light emitting device to be formed subsequently.

[0062] The embodiment of the present invention further provides a display device, such as Fig. 9 As shown, Fig. 9 Schematic diagram of a display device provided in an embodiment of the present invention, the display device includes the above-mentioned display panel 100. The specific structure of the display panel 100 has been described in detail in the above-mentioned embodiment, and will not be repeated here. Fig. 9 The display device shown is for illustration only, and the display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a laptop computer, an e-reader or a television.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A display panel, It is characterized in that include: substrate; An array layer, located on one side of the substrate; the array layer includes a first region and a second region, the first region does not include metal, and the second region includes metal; A support portion is located at a side of the array layer away from the substrate; the orthographic projection of the support portion on the plane where the array layer is located is located in the first area; The display panel further comprises a first shielding portion, wherein an orthographic projection of the first shielding portion on a plane where the display panel is located at least partially surrounds the supporting portion; The orthographic projection of the first shielding portion on the plane where the substrate is located is a first projection, the orthographic projection of the supporting portion on the plane where the substrate is located is a second projection, and the shortest distance between the first projection and the second projection is greater than 0; The display panel also includes an organic layer, which is located between the support portion and the first shielding portion along a direction perpendicular to the plane where the substrate is located; the organic layer includes a groove, and the orthographic projection of the groove on the plane where the substrate is located is located between the first projection and the second projection.

2. The display panel according to claim 1, It is characterized in that The first shielding portion is annular.

3. The display panel according to claim 1, It is characterized in that It also includes a first tip portion, which is connected to the first shielding portion. The width of the first tip portion gradually decreases along the direction from the support portion to the first shielding portion, and the width direction of the first tip portion is perpendicular to the extension direction of the first tip portion.

4. The display panel according to claim 3, It is characterized in that It also includes a second shielding portion and a second tip portion, wherein the second shielding portion is located on a side of the first shielding portion away from the supporting portion; the second tip portion is connected to the second shielding portion, and a width of the second tip portion gradually decreases along a direction in which the second shielding portion points to the supporting portion, and a width direction of the second tip portion is perpendicular to an extension direction of the second tip portion.

5. The display panel according to claim 4, It is characterized in that The first tip portion and the second tip portion are arranged opposite to each other.

6. The display panel according to claim 5, It is characterized in that The first shielding portion and the second shielding portion are parallel to each other.

7. The display panel according to claim 1, It is characterized in that The array layer includes a thin film transistor; the first shielding portion is located at a side of the thin film transistor away from the substrate.

8. The display panel according to claim 1, It is characterized in that The display panel further includes a light emitting device, wherein the light emitting device includes a first electrode, a light emitting layer, and a second electrode which are stacked; The first shielding portion is disposed on the same layer as the first electrode.

9. The display panel according to claim 8, It is characterized in that The signal transmitted by the first shielding portion is the same as the signal transmitted by the second electrode.

10. The display panel according to claim 1, It is characterized in that The display panel further includes a pixel definition layer; the organic layer is arranged on the same layer as the pixel definition layer.

11. The display panel according to claim 1, It is characterized in that The groove penetrates the organic layer.

12. The display panel according to claim 1, It is characterized in that The display panel includes a display area and a non-display area, the display area includes a light-emitting device, the non-display area includes a peripheral circuit, and the first region is located in the non-display area of ​​the display panel.

13. A display device, It is characterized in that A display panel comprising any one of claims 1 to 12.

Citation Information

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