Display panel and display device

Abstract

An embodiment of the present invention discloses a display panel and a display device; the display panel includes an optical cutout area, a display area, and a blocking area. The display panel includes a substrate, a thin film transistor layer, and a light emitting device layer. The thin film transistor layer includes at least one partition unit located in the blocking area. The light emitting device layer includes a light emitting redundant layer located in the blocking area. The thin film transistor layer includes a first metal layer. The first metal layer includes at least one first metal part located in the blocking area. A partition unit includes a first metal part. The light emitting redundant layer includes a first part and a second part arranged at intervals. The first part is located on the surface of the partition unit away from the substrate side. In the present invention, by arranging a partition unit composed of metal in the blocking area and making the side surface of the partition unit steeper by using the metal, when forming the light emitting redundant layer, the light emitting redundant layer is naturally broken at the partition unit, blocking the intrusion path of water and oxygen in the light emitting device layer and ensuring the normal display of the display area.

Description

Technical Field

[0001] The present invention relates to the field of displays, and particularly to a display panel and a display device. Background Art

[0002] In an OLED (Organic Light-Emitting Diode) display panel, in order to pursue a higher screen-to-body ratio and at the same time meet optical requirements, the screen in the area where the optical device is located is generally cut off to form an optical cutout area. Near the edge of the normal display area close to the optical cutout area, display abnormalities often occur. The main reason is that water vapor invades the light-emitting functional layer, and the light-emitting functional layer has the characteristic of being easy to absorb water. As time goes by, the water vapor continuously diffuses into the display area through the light-emitting functional layer, and finally causes the light-emitting functional layer to fail and unable to emit light normally.

[0003] Therefore, there is an urgent need for a display panel and a display device to solve the above technical problems. Summary of the Invention

[0004] The present invention provides a display panel and a display device, which can alleviate the technical problem of display abnormalities in the display area near the optical cutout area at present.

[0005] The present invention provides a display panel, including an optical cutout area, a display area surrounding the optical cutout area, and a blocking area located between the optical cutout area and the display area. The display panel includes:

[0006] A substrate;

[0007] A thin film transistor layer located on one side of the substrate. The thin film transistor layer includes at least one partition unit located in the blocking area;

[0008] A light-emitting device layer located on the side of the thin film transistor layer away from the substrate. The light-emitting device layer includes a light-emitting functional layer located in the display area and a light-emitting redundant layer located in the blocking area;

[0009] Wherein, the thin film transistor layer includes a first metal layer. The first metal layer includes at least one first metal part located in the blocking area. One partition unit includes one first metal part. The light-emitting redundant layer includes a first part and a second part arranged at intervals. The first part is located on the surface of the partition unit away from the substrate.

[0010] Preferably, at least one partition unit is arranged in a closed loop around the optical cutout area.

[0011] Preferably, the first metal part includes a first sub-part and a second sub-part arranged in a stack; the first metal layer further includes a first source / drain layer and a second source / drain layer arranged in different layers; wherein, the first source / drain layer includes a first sub-layer and the first sub-part located in the display area, and the second source / drain layer includes a second sub-layer and the second sub-part located in the display area.

[0012] Preferably, at least one of the first sub-parts includes a stacked first metal unit, a second metal unit, and a third metal unit, the second metal unit is located between the first metal unit and the third metal unit, the first metal unit is located closer to the substrate side, in the top view direction of the display panel, the surface of the second metal unit closer to the third metal unit is located within the surface of the third metal unit closer to the second metal unit, and the area of the surface of the second metal unit closer to the third metal unit is larger than the area of the surface of the third metal unit closer to the second metal unit; or / and, at least one of the second sub-parts includes a stacked fourth metal unit, a fifth metal unit, and a sixth metal unit, the fifth metal unit is located between the fourth metal unit and the sixth metal unit, the fourth metal unit is located closer to the substrate side, in the top view direction of the display panel, the surface of the fifth metal unit closer to the sixth metal unit is located within the surface of the sixth metal unit closer to the fifth metal unit, and the area of the surface of the fifth metal unit closer to the sixth metal unit is larger than the area of the surface of the sixth metal unit closer to the fifth metal unit.

[0013] Preferably, the area of the surface of the second metal unit closer to the third metal unit is smaller than the area of the surface of the second metal unit closer to the first metal unit; or / and, the area of the surface of the fifth metal unit closer to the sixth metal unit is smaller than the area of the surface of the fifth metal unit closer to the fourth metal unit.

[0014] Preferably, the second sub-part is located on the side of the first sub-part away from the substrate; wherein, the slope of the side surface of the second sub-part is greater than the slope of the side surface of the first sub-part.

[0015] Preferably, the slope of the side surface of the first sub-part is greater than or equal to 60°, and the slope of the side surface of the second sub-part is greater than or equal to 60°.

[0016] Preferably, the thin film transistor layer further includes a second metal layer, the second metal layer includes a gate layer located in the display area and at least one second metal part located in the blocking area, and one partition unit includes one second metal part; wherein, the second metal part is located on the side of the first metal part closer to the substrate.

[0017] Preferably, at least one of the partition units further includes an inorganic part located on a side of the first metal part close to the substrate.

[0018] The present invention further provides a display device, comprising any of the above-mentioned display panels and a device body, wherein the device body and the display panel are integrated into one.

[0019] Beneficial effects of the present invention: The present invention sets a partition unit composed of metal in the blocking area between the optical hole area and the display area, and utilizes the advantage of the strong plasticity of metal to set the side of the partition unit to be steeper. When the redundant light-emitting layer is formed, the redundant light-emitting layer is naturally broken at the partition unit, thereby blocking the invasion path of water and oxygen in the light-emitting device layer, ensuring the normal display of the display area and extending the service life of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 is a schematic top view of a display panel provided by an embodiment of the present invention;

[0022] Figure 2 yes Figure 1 Schematic diagram of the structure along section A1A2;

[0023] Figure 3 is a schematic diagram of a first structure of a partition unit of a display panel provided by an embodiment of the present invention;

[0024] Figure 4 is a schematic diagram of a second structure of a partition unit of a display panel provided by an embodiment of the present invention;

[0025] Figure 5 is a third structural schematic diagram of a partition unit of a display panel provided in an embodiment of the present invention;

[0026] Figure 6 is a fourth structural schematic diagram of a partition unit of a display panel provided by an embodiment of the present invention;

[0027] Figure 7 is a fifth structural schematic diagram of a partition unit of a display panel provided by an embodiment of the present invention;

[0028] Figure 8 is a sixth structural schematic diagram of a partition unit of a display panel provided by an embodiment of the present invention;

[0029] Figure 9 It is a schematic structural diagram of a display device provided by an embodiment of the present invention. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In the present invention, unless otherwise stated, the orientation terms such as "upper" and "lower" generally refer to the upper and lower in the actual use or working state of the device, specifically the drawing direction in the drawings; and "inner" and "outer" refer to the outline of the device.

[0031] In an OLED (Organic Light-Emitting Diode) display panel, in order to pursue a higher screen-to-body ratio and at the same time meet the optical requirements, the screen in the area where the optical device is located is generally cut off to form an optical cutout area. Near the edge of the normal display area close to the optical cutout area, display anomalies often occur. The main reason is that water vapor invades the light-emitting functional layer, and the light-emitting functional layer has the characteristic of being easily water-absorbent. As time goes by, the water vapor continuously diffuses into the display area through the light-emitting functional layer, and finally the light-emitting functional layer fails and cannot emit light normally.

[0032] Please refer to Figures 1 to 8 , an embodiment of the present invention provides a display panel 100, including an optical cutout area 101, a display area 103 surrounding the optical cutout area 101, and a barrier area 102 located between the optical cutout area 101 and the display area 103. The display panel 100 includes:

[0033] A substrate 200;

[0034] A thin-film transistor layer 300, located on one side of the substrate 200, and the thin-film transistor layer 300 includes at least one partition unit 500 located in the barrier area 102;

[0035] A light-emitting device layer 400, located on the side of the thin-film transistor layer 300 away from the substrate 200, and the light-emitting device layer 400 includes a light-emitting functional layer 410 located in the display area 103 and a light-emitting redundant layer 420 located in the barrier area 102;

[0036] In which, the thin film transistor layer 300 includes a first metal layer, the first metal layer includes at least one first metal part 510 located in the blocking area 102, the partition unit 500 includes the first metal part 510, and the light-emitting redundant layer 420 includes a first part 421 and a second part 422 arranged at intervals, and the first part 421 is located on the surface of the partition unit 500 away from the substrate 200.

[0037] The present invention sets a partition unit composed of metal in the blocking area between the optical hole area and the display area, and uses the advantage of the strong plasticity of metal to set the side of the partition unit to be steeper. When the redundant light-emitting layer is formed, the redundant light-emitting layer is naturally broken at the partition unit, thereby blocking the invasion path of water and oxygen in the light-emitting device layer, ensuring the normal display of the display area and extending the service life of the display panel.

[0038] The technical solution of the present invention is now described in conjunction with specific embodiments.

[0039] In this embodiment, please refer to Figure 1 , Figure 2 , Figure 3 The display panel 100 includes an optical hole area 101, a display area 103 surrounding the optical hole area 101, and a blocking area 102 located between the optical hole area 101 and the display area 103. The display panel 100 includes a substrate 200, a thin film transistor layer 300 located on one side of the substrate 200, and a light emitting device layer 400 located on a side of the thin film transistor layer 300 away from the substrate 200. The thin film transistor layer 300 includes at least one partition unit 500 located in the blocking area 102. The light emitting device layer 400 00 includes a light-emitting functional layer 410 located in the display area 103, and a light-emitting redundant layer 420 located in the blocking area 102, the thin film transistor layer 300 includes a first metal layer, the first metal layer includes at least one first metal portion 510 located in the blocking area 102, the partition unit 500 includes the first metal portion 510, the light-emitting redundant layer 420 includes a first portion 421 and a second portion 422 arranged at intervals, and the first portion 421 is located on the surface of the partition unit 500 away from the substrate 200.

[0040] The second part 422 is located on the peripheral side of the partition unit 500. The second part 422 at least includes a first unit. The orthographic projection of the first unit on the partition unit 500 is located outside the partition unit 500. When forming the light-emitting redundant layer 420, the light-emitting redundant layer 420 is naturally fractured at the partition unit 500. The first part 421 and the second part 422 are arranged at intervals, so that the light-emitting redundant layer 420 has a fracture. After water and oxygen invade the light-emitting redundant layer 420, it is difficult to invade the light-emitting functional layer 410, thereby blocking the invasion path of water and oxygen in the light-emitting device layer 400, ensuring the normal display of the display area 103, and extending the service life of the display panel 100.

[0041] In some embodiments, at least one of the partition units 500 is arranged in a closed loop around the optical cutout area 101. The partition unit 500 arranged in a closed loop can completely block the propagation path of water and oxygen in the light-emitting redundant layer 420, making it difficult to invade the light-emitting functional layer 410, thereby blocking the invasion path of water and oxygen in the light-emitting device layer 400, ensuring the normal display of the display area 103, and extending the service life of the display panel 100.

[0042] In some embodiments, please refer to Figure 2 、 Figure 3 The first metal part 510 includes a first sub-part 511 and a second sub-part 512 arranged in a stack; the first metal layer further includes a first source-drain layer 610 and a second source-drain layer 620 arranged in different layers; wherein, the first source-drain layer 610 includes a first sub-layer located in the display area 103 and the first sub-part 511, and the second source-drain layer 620 includes a second sub-layer located in the display area 103 and the second sub-part 512.

[0043] In order to balance the signal transmission load, the thin-film transistor includes two layers of source-drain electrodes. When manufacturing the first sub-layer and the second sub-layer, the first sub-part 511 and the second sub-part 512 of the partition unit 500 are formed simultaneously, increasing the height of the partition unit 500. At the same time, both the first sub-part 511 and the second sub-part 512 are made of metal materials. Compared with organic and inorganic materials, metal materials have stronger plasticity, can have a higher height, and can have a larger slope on the side, making it easier for the light-emitting redundant layer 420 to break on the peripheral side of the partition unit 500. Among them, the first sub-layer and the second sub-layer are easy to understand, so they are not labeled in the figure, and their positions can refer to the positions of the first source-drain layer 610 and the second source-drain layer 620.

[0044] In some embodiments, please refer to Figure 2 、 Figure 5, at least one of the first sub - parts 511 includes stacked first metal unit 710, second metal unit 720, and third metal unit 730. The second metal unit 720 is located between the first metal unit 710 and the third metal unit 730. The first metal unit 710 is located closer to the substrate 200. In the top - view direction of the display panel 100, the surface of the second metal unit 720 closer to the third metal unit 730 is within the surface of the third metal unit 730 closer to the second metal unit 720, and the area of the surface of the second metal unit 720 closer to the third metal unit 730 is larger than the area of the surface of the third metal unit 730 closer to the second metal unit 720; or / and,

[0045] , at least one of the second sub - parts 512 includes stacked fourth metal unit 740, fifth metal unit 750, and sixth metal unit 760. The fifth metal unit 750 is located between the fourth metal unit 740 and the sixth metal unit 760. The fourth metal unit 740 is located closer to the substrate 200. In the top - view direction of the display panel 100, the surface of the fifth metal unit 750 closer to the sixth metal unit 760 is within the surface of the sixth metal unit 760 closer to the fifth metal unit 750, and the area of the surface of the fifth metal unit 750 closer to the sixth metal unit 760 is larger than the area of the surface of the sixth metal unit 760 closer to the fifth metal unit 750.

[0046] , at least one of the first sub - layers includes stacked first metal sub - layer, second metal sub - layer, and third metal sub - layer. At least one of the second sub - layers includes stacked fourth metal sub - layer, fifth metal sub - layer, and sixth metal sub - layer. The first metal sub - layer and the first metal unit 710 are formed in the same process, the second metal sub - layer and the second metal unit 720 are formed in the same process, the third metal sub - layer and the third metal unit 730 are formed in the same process, the fourth metal sub - layer and the fourth metal unit 740 are formed in the same process, the fifth metal sub - layer and the fifth metal unit 750 are formed in the same process, and the sixth metal sub - layer and the sixth metal unit 760 are formed in the same process.

[0047] For example, the first source-drain layer 610 may be a stacked structure of three layers of titanium-aluminum-titanium metal. By shortening and patterning the aluminum layer of the partition unit 500, a structure with a shorter middle layer of the sandwich is formed, which is beneficial to the fracture of the light-emitting redundant layer 420 near the second metal unit 720 and the fifth metal unit 750. When forming the light-emitting redundant layer 420, the probability of natural fracture of the light-emitting redundant layer 420 at the partition unit 500 is increased. The first part 421 and the second part 422 are arranged at intervals, so that the light-emitting redundant layer 420 has a fracture. After water and oxygen invade the light-emitting redundant layer 420, it is difficult to invade the light-emitting functional layer 410, thereby blocking the invasion path of water and oxygen in the light-emitting device layer 400, ensuring the normal display of the display area 103, and extending the service life of the display panel 100.

[0048] In some embodiments, please refer to Figure 2 、 Figure 6 , the area of the surface of the second metal unit 720 on the side close to the third metal unit 730 is smaller than the area of the surface of the second metal unit 720 on the side close to the first metal unit 710; or / and, the area of the surface of the fifth metal unit on the side close to the sixth metal unit 760 is smaller than the area of the surface of the fifth metal unit on the side close to the fourth metal unit 740

[0049] The second metal unit 720 or / and the fifth metal unit 750 adopt an inverted trapezoidal structure. When forming the light-emitting redundant layer 420, the probability of natural fracture of the light-emitting redundant layer 420 at the partition unit 500 is further increased. The first part 421 and the second part 422 are arranged at intervals, so that the light-emitting redundant layer 420 has a fracture. After water and oxygen invade the light-emitting redundant layer 420, it is difficult to invade the light-emitting functional layer 410, thereby blocking the invasion path of water and oxygen in the light-emitting device layer 400, ensuring the normal display of the display area 103, and extending the service life of the display panel 100.

[0050] In some embodiments, please refer to Figure 2 、 Figure 7 , the second sub-part 512 is located on the side of the first sub-part 511 away from the substrate 200. The slope of the side surface of the first sub-part 511 is greater than or equal to 60°, and the slope of the side surface of the second sub-part 512 is greater than or equal to 60°. The greater the slope, the easier the light-emitting redundant layer 420 is to fracture at the partition unit 500. When the slope is greater than or equal to 60°, fracture can occur more easily, thereby blocking the invasion path of water and oxygen in the light-emitting device layer 400, ensuring the normal display of the display area 103, and extending the service life of the display panel 100.

[0051] In some embodiments, the second sub - part 512 is located on the side of the first sub - part 511 away from the substrate 200; wherein, the slope of the side surface of the second sub - part 512 is greater than the slope of the side surface of the first sub - part 511.

[0052] The greater the slope of the side surface of the second sub - part 512 on the side away from the substrate 200, the easier it is for the light - emitting redundant layer 420 to break at the partition unit 500. After water and oxygen invade the light - emitting redundant layer 420, it is difficult for them to invade the light - emitting functional layer 410, thereby blocking the invasion path of water and oxygen in the light - emitting device layer 400, ensuring the normal display of the display area 103, and extending the service life of the display panel 100.

[0053] In some embodiments, referring to Figure 2 、 Figure 8 The thin - film transistor layer 300 further includes a second metal layer. The second metal layer includes a gate layer 810 located in the display area 103 and at least one second metal part 520 located in the barrier area 102. A partition unit 500 includes a second metal part 520; wherein, the second metal part 520 is located on the side of the first metal part 510 close to the substrate 200.

[0054] When the gate layer 810 is formed, the second metal part 520 is formed simultaneously, thereby increasing the height of the partition unit 500. The side surface can have a larger slope, making it easier for the light - emitting redundant layer 420 to break on the periphery of the partition unit 500.

[0055] In some embodiments, referring to Figure 2 、 Figure 4 At least one partition unit 500 further includes an inorganic part 530 located on the side of the first metal part 510 close to the substrate 200.

[0056] In some embodiments, referring to Figure 2 、 Figure 8 The thin - film transistor layer 300 further includes an inorganic film layer. The inorganic film layer includes at least one inorganic layer located in the display area 103 and at least one inorganic part 530 located in the barrier area 102. The inorganic part 530 is located on the side of the first metal part 510 close to the substrate 200.

[0057] The inorganic layer can be an inorganic insulating layer such as a gate insulating layer 910, an inter - layer insulating layer 920, etc. When the inorganic layer is formed, the inorganic part 530 is formed simultaneously, thereby increasing the height of the partition unit 500 and making it easier for the light - emitting redundant layer 420 to break on the periphery of the partition unit 500.

[0058] In some embodiments, referring toFigure 2 , Figure 3 , Figure 8 The thin film transistor layer 300 includes an active layer located on the substrate 200, a gate insulating layer 910 located on the active layer, a gate layer 810 located on the gate insulating layer 910, an interlayer insulating layer 920 located on the gate layer 810, a first metal layer located on the interlayer insulating layer 920, and a passivation layer 930 located on the first metal layer.

[0059] In some embodiments, see Figure 2 , Figure 3 , Figure 8 The gate layer 810 may include a first gate layer 811 and a second gate layer 812, the gate insulating layer 910 may include a first insulating layer 911 and a second insulating layer 912, and the inorganic part 530 may include a first inorganic sub-part 531 formed by the same process as the first insulating layer 911, and a second inorganic sub-part 532 formed by the same process as the second insulating layer 912.

[0060] In some embodiments, the thin film transistor layer 300 includes a plurality of partition units 500 located in the blocking area 102 , and the heights of the partition units 500 gradually increase in a direction from the display area 103 to the optical hole area 101 .

[0061] By adjusting the thickness of the partition unit 500, it is easy to understand and no longer requires repeated drawing. For example, by adjusting the number and type of film layers in the partition unit 500, the height of the partition unit 500 gradually increases in the direction from the display area 103 to the optical hole area 101, which is beneficial for the luminous redundant layer 420 to break near the partition unit 500, and is more beneficial for blocking the intrusion of water and oxygen near the optical hole area 101, thereby ensuring the normal display of the display area 103 and extending the service life of the display panel 100.

[0062] In some embodiments, at least one of the second metal parts 520 includes a stacked seventh metal unit, an eighth metal unit, and a ninth metal unit, the eighth metal unit is located between the seventh metal unit and the first metal unit, the seventh metal unit is located close to the substrate 200, and in the top view direction of the display panel 100, the surface of the eighth metal unit close to the ninth metal unit is located within the surface of the ninth metal unit close to the eighth metal unit.

[0063] For example, the gate layer 810 can be a three-layer metal stack of molybdenum-aluminum-molybdenum, which is easy to understand and no longer requires repeated drawing. By shortening and patterning the aluminum layer of the partition unit 500, a sandwich structure with a shorter middle layer is formed, which is conducive to the luminous redundant layer 420 breaking near the eighth metal unit. When the luminous redundant layer 420 is formed, the probability of natural fracture of the luminous redundant layer 420 at the partition unit 500 is increased. The first part 421 and the second part 422 are arranged at intervals, so that the luminous redundant layer 420 is broken. After water and oxygen invade the luminous redundant layer 420, it is difficult to invade the luminous functional layer 410, thereby blocking the invasion path of water and oxygen in the light-emitting device layer 400, ensuring the normal display of the display area 103, and extending the service life of the display panel 100.

[0064] In some embodiments, the thin film transistor layer 300 includes a plurality of partition units 500 located in the blocking area 102, and in the direction from the display area 103 to the optical hole area 101, the slope of the side of the first sub-portion 511 gradually increases, and the slope of the side of the second sub-portion 512 gradually increases.

[0065] By adjusting the slope of the partition unit 500, it is easy to understand and no longer needs to be repeatedly drawn. The slope of the partition unit 500 gradually increases, which is conducive to the breaking of the light-emitting redundant layer 420 near the partition unit 500, and is more conducive to blocking the intrusion of water and oxygen near the optical hole area 101, thereby ensuring the normal display of the display area 103 and extending the service life of the display panel 100.

[0066] In some embodiments, the display area 103 includes an edge packaging area close to the blocking area 102, a line switching area located on the side of the edge packaging area away from the blocking area 102, a pixel redundancy area located on the side of the line switching area away from the blocking area 102, and a first display area located on the side of the pixel redundancy area away from the blocking area 102.

[0067] In some embodiments, see Figure 2 The display panel 100 further includes at least one blocking unit 950 located in the blocking area 102 , and the blocking unit 950 is used to block the flow of the light-emitting redundant layer 420 .

[0068] In some embodiments, the light emitting device layer 400 includes a stacked light emitting hole layer, a light emitting material layer, and a light emitting electron layer.

[0069] In some embodiments, the planar layer is located in the first display area, the pixel redundancy area, the line switching area, and the edge packaging area.

[0070] In some embodiments, the display panel 100 further includes a pixel definition layer 940. The pixel definition layer 940 may be located in the first display area, the pixel redundancy area, the line switching area, the edge encapsulation area, and the blocking area 102.

[0071] In some embodiments, see Figure 2 , Figure 3 , Figure 8 The surface of the partition unit 500 away from the substrate 200 includes the surface of the first metal part 510 away from the substrate 200. The first metal part 510 is the film layer of the partition unit 500 farthest from the substrate 200, which is conducive to shaping and breaks the light-emitting redundant layer 420.

[0072] The present invention sets a partition unit composed of metal in the blocking area between the optical hole area and the display area, and uses the advantage of the strong plasticity of metal to set the side of the partition unit to be steeper. When the redundant light-emitting layer is formed, the redundant light-emitting layer is naturally broken at the partition unit, thereby blocking the invasion path of water and oxygen in the light-emitting device layer, ensuring the normal display of the display area and extending the service life of the display panel.

[0073] See also Figure 9 An embodiment of the present invention further provides a display device 10, comprising any of the above-mentioned display panels 100 and a device body 20, wherein the device body 20 and the display panel 100 are integrated into one body.

[0074] The specific structure of the display panel 100 may be referred to any of the above embodiments and drawings of the display panel 100 , and will not be described in detail herein.

[0075] In this embodiment, the device body 20 may include a middle frame, frame glue, etc., and the display device 10 may be a display terminal such as a mobile phone, a tablet, a television, etc., which is not limited here.

[0076] In some embodiments, the display device 10 includes an optical device disposed in the optical hole area 101 , and the optical device may be a camera, an infrared element, a distance sensor, etc.

[0077] The embodiment of the present invention discloses a display panel and a display device; the display panel includes an optical hole area, a display area, and a blocking area, the display panel includes a substrate, a thin film transistor layer, and a light-emitting device layer, the thin film transistor layer includes at least one partition unit located in the blocking area, the light-emitting device layer includes a light-emitting redundant layer located in the blocking area, the thin film transistor layer includes a first metal layer, the first metal layer includes at least one first metal part located in the blocking area, a partition unit includes a first metal part, the light-emitting redundant layer includes a first part and a second part arranged at intervals, and the first part is located on the surface of the partition unit away from the substrate side; the present invention arranges a partition unit composed of metal in the blocking area, uses the metal to set the side of the partition unit steeper, and when forming the light-emitting redundant layer, the light-emitting redundant layer is naturally broken at the partition unit, thereby blocking the invasion path of water and oxygen in the light-emitting device layer, and ensuring the normal display of the display area.

[0078] A display panel and a display device provided by an embodiment of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A display panel, characterized in that, It includes an optical punching area, a display area surrounding the optical punching area, and a blocking area located between the optical punching area and the display area. The display panel includes: a substrate; a thin film transistor layer located on one side of the substrate. The thin film transistor layer includes at least one partition unit located in the blocking area; a light-emitting device layer located on the side of the thin film transistor layer away from the substrate. The light-emitting device layer includes a light-emitting functional layer located in the display area and a light-emitting redundant layer located in the blocking area; wherein, the thin film transistor layer includes a first metal layer. The first metal layer includes at least one first metal part located in the blocking area. One partition unit includes one first metal part. The first metal part includes a first sub-part and a second sub-part arranged in a stacked manner. The light-emitting redundant layer includes a first part and a second part arranged at intervals. The first part is located on the surface of the partition unit away from the substrate; at least one of the first sub-parts includes a first metal unit, a second metal unit, and a third metal unit arranged in a stacked manner. In the top view direction of the display panel, the surface of the second metal unit close to the third metal unit is located within the surface of the third metal unit close to the second metal unit, and the area of the surface of the second metal unit close to the third metal unit is larger than the area of the surface of the third metal unit close to the second metal unit; or / and, at least one of the second sub-parts includes a fourth metal unit, a fifth metal unit, and a sixth metal unit arranged in a stacked manner. In the top view direction of the display panel, the surface of the fifth metal unit close to the sixth metal unit is located within the surface of the sixth metal unit close to the fifth metal unit, and the area of the surface of the fifth metal unit close to the sixth metal unit is larger than the area of the surface of the sixth metal unit close to the fifth metal unit.

2. The display panel according to claim 1, wherein At least one of the partition units is arranged in a closed loop around the optical punching area.

3. The display panel according to claim 2, wherein The first metal layer further includes a first source-drain layer and a second source-drain layer arranged in different layers; wherein, the first source-drain layer includes a first sub-layer and the first sub-part located in the display area, and the second source-drain layer includes a second sub-layer and the second sub-part located in the display area.

4. The display panel according to claim 3, characterized in that, The area of the surface of the second metal unit close to the third metal unit is smaller than the area of the surface of the second metal unit close to the first metal unit; or / and, the area of the surface of the fifth metal unit close to the sixth metal unit is smaller than the area of the surface of the fifth metal unit close to the fourth metal unit.

5. The display panel according to claim 3, characterized in that, The second sub-part is located on the side of the first sub-part away from the substrate; wherein, the slope of the side surface of the second sub-part is greater than the slope of the side surface of the first sub-part.

6. The display panel according to claim 5, characterized in that The slope of the side surface of the first sub-part is greater than or equal to 60°, and the slope of the side surface of the second sub-part is greater than or equal to 60°.

7. The display panel according to claim 3, characterized in that, The thin film transistor layer further includes a second metal layer. The second metal layer includes a gate layer located in the display area and at least one second metal part located in the barrier area. One of the partition units includes one of the second metal parts; Wherein, the second metal part is located on the side of the first metal part close to the substrate.

8. The display panel according to claim 1, wherein At least one of the partition units further includes an inorganic part located on the side of the first metal part close to the substrate.

9. A display device, characterized in that, It includes a display panel and a device body according to any one of claims 1 to 8, and the device body and the display panel are combined into one body.

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