Display panel and display device

Abstract

The present application relates to the technical field of display. Disclosed are a display panel and a display device. The display panel comprises a base substrate, a plurality of pixel units, a grayscale color filter and a barrier protective layer. By means of providing a barrier protective layer on the side of a grayscale color filter away from a base substrate, the barrier protective layer can protect the grayscale color filter and prevent the grayscale color filter from being exposed to the outside, thereby preventing the grayscale color filter from fading caused by adsorption of moisture and oxygen, and improving the yield of the display panel.

Description

Display panel and display device Technical Field

[0001] This application relates to the field of display technology, and in particular to a display panel and display device. Background Technology

[0002] The display panel includes a substrate and a light-emitting unit located on one side of the substrate. The light-emitting unit is used to emit light to realize the display of the display panel.

[0003] Summary of the Invention

[0004] This application provides a display panel and a display device, the technical solution of which is as follows:

[0005] On one hand, a display panel is provided, the display panel comprising:

[0006] A substrate having a display area and a peripheral area surrounding the display area;

[0007] Multiple pixel units, the multiple pixel units being located in the display area on the substrate;

[0008] A grayscale color filter is located on the side of the plurality of pixel units away from the substrate, and light emitted by the pixel units is emitted after passing through the grayscale color filter;

[0009] And a barrier protective layer, the barrier protective layer being located on the side of the grayscale color filter away from the substrate, the orthogonal projection of the barrier protective layer on the substrate covering the orthogonal projection of the grayscale color filter on the substrate.

[0010] Optionally, the orthographic projection of the boundary of the barrier protective layer on the substrate is further away from the display area than the orthographic projection of the boundary of the grayscale color filter on the substrate.

[0011] Optionally, the distance between the orthographic projection of the boundary of the barrier protective layer on the substrate and the orthographic projection of the boundary of the grayscale color filter on the substrate is greater than or equal to 0.86 micrometers.

[0012] Optionally, the display panel further includes: an encapsulation film layer located on the side of the plurality of pixel units away from the substrate, the encapsulation film layer being located in the display area and the peripheral area, and the encapsulation film layer covering the plurality of pixel units;

[0013] The orthographic projection of the boundary of the encapsulation film layer on the substrate is further away from the display area than the orthographic projection of the boundary of the grayscale color filter on the substrate.

[0014] Optionally, the orthographic projection of the boundary of the barrier protective layer on the substrate lies between the orthographic projection of the boundary of the grayscale color filter on the substrate and the orthographic projection of the boundary of the encapsulation film layer on the substrate.

[0015] Optionally, the material of the barrier protective layer is an inorganic material or an organic material.

[0016] Optionally, the orthographic projection of the boundary of the barrier protective layer on the substrate is further away from the display area than the orthographic projection of the boundary of the encapsulation film layer on the substrate.

[0017] Optionally, the material of the barrier protective layer is an organic material.

[0018] Optionally, the display panel further includes: a blocking structure located in the peripheral region and surrounding the display region, wherein the orthographic projection of the blocking structure on the substrate is located within the orthographic projection of the encapsulation film layer on the substrate;

[0019] The boundary of the barrier layer is projected further away from the display area on the substrate than the projection of the blocking structure on the substrate.

[0020] Optionally, the orthographic projection of the boundary of the grayscale color filter on the substrate is located on the side of the orthographic projection of the blocking structure on the substrate closer to the display area.

[0021] Optionally, the blocking structure includes a first blocking dam and a second blocking dam arranged in a direction away from the display area;

[0022] The orthographic projection of the boundary of the barrier layer on the substrate is further away from the display area than the orthographic projection of the first barrier dam on the substrate.

[0023] Optionally, the orthographic projection of the boundary of the grayscale color filter on the substrate is flush with the orthographic projection of the first blocking dam on the substrate, or the orthographic projection of the boundary of the grayscale color filter on the substrate is located on the side of the orthographic projection of the first blocking dam on the substrate closer to the display area.

[0024] Optionally, the blocking structure includes a first blocking dam and a second blocking dam arranged in a direction away from the display area;

[0025] The orthographic projection of the boundary of the barrier protective layer on the substrate is further away from the display area than the orthographic projection of the second barrier dam on the substrate.

[0026] Optionally, the orthographic projection of the boundary of the grayscale color filter on the substrate is flush with the orthographic projection of the second blocking dam on the substrate, or the orthographic projection of the boundary of the grayscale color filter on the substrate is located on the side of the orthographic projection of the second blocking dam on the substrate closer to the display area.

[0027] Optionally, the orthographic projection of the boundary of the barrier protective layer on the substrate is flush with or closer to the orthographic projection of the boundary of the encapsulation film layer on the substrate, relative to the orthographic projection of the boundary of the encapsulation film layer on the substrate.

[0028] Optionally, the material of the barrier protective layer is an inorganic material or an organic material.

[0029] Optionally, the orthographic projection of the boundary of the barrier protective layer on the substrate is further away from the display area than the orthographic projection of the boundary of the encapsulation film layer on the substrate.

[0030] Optionally, the material of the barrier protective layer is an organic material.

[0031] Optionally, the surrounding area includes a first area, a second area, a third area, and a fourth area;

[0032] The first region and the second region are located on both sides of the display area in the first direction, and the third region and the fourth region are located on both sides of the display area in the second direction; the first region includes a bending area and a binding area arranged in a direction away from the display area;

[0033] When the material of the barrier protective layer is an inorganic material, the orthographic projection of the barrier protective layer on the substrate is not located in the bending region.

[0034] Optionally, the display panel further includes: a touch component and a black matrix;

[0035] The touch component is located on the side of the plurality of pixel units away from the substrate. The touch component includes a first touch wiring layer, a touch insulating layer, and a second touch wiring layer stacked along the direction away from the substrate. Both the first touch wiring layer and the second touch wiring layer include touch electrode lines. The orthographic projection of the touch electrode lines on the substrate does not overlap with the light-emitting area of ​​the pixel unit.

[0036] The black matrix is ​​located on the side of the plurality of pixel units away from the substrate. The black matrix has a plurality of openings corresponding to the plurality of pixel units, and each opening is used to expose the light-emitting area of ​​a corresponding pixel unit.

[0037] Optionally, the black matrix is ​​located on the side of the touch component away from the substrate.

[0038] The grayscale color filter is located on the side of the black matrix away from the substrate and is also located within a plurality of openings in the black matrix; the orthographic projection of the grayscale color filter on the substrate covers the orthographic projection of the black matrix on the substrate.

[0039] Optionally, the grayscale color filter is located between the first touch wiring layer and the second touch wiring layer, and the grayscale color filter is reused as the touch insulating layer.

[0040] Optionally, the black matrix is ​​located on the side of the touch component away from the substrate.

[0041] The barrier protective layer is located between the second touch wiring layer and the grayscale color filter; or...

[0042] The barrier protection layer is located between the second touch trace layer and the black matrix; or...

[0043] The barrier protective layer is located on the side of the black matrix away from the substrate and is also located within multiple openings of the black matrix.

[0044] Optionally, the black matrix is ​​located on the side of the touch component away from the substrate; the display panel further includes an organic protective layer located on the side of the black matrix away from the substrate.

[0045] Optionally, the touch component further includes: a touch buffer layer located on the side of the first touch trace layer near the substrate;

[0046] The grayscale color filter is located on the side of the touch buffer layer closest to the substrate, and the touch buffer layer is reused as the barrier protection layer.

[0047] Optionally, the display panel further includes: an encapsulation film layer located on the side of the plurality of pixel units away from the substrate, comprising: a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer stacked along a direction away from the substrate;

[0048] The orthographic projection of the boundary of the organic encapsulation layer on the substrate is closer to the display area than the orthographic projection of the boundary of the first inorganic encapsulation layer on the substrate.

[0049] The orthographic projection of the boundary of the organic encapsulation layer on the substrate is closer to the display area than the orthographic projection of the boundary of the second inorganic encapsulation layer on the substrate.

[0050] Optionally, the grayscale color filter is located between the first inorganic encapsulation layer and the second inorganic encapsulation layer, and the grayscale color filter is reused as the organic encapsulation layer.

[0051] On the other hand, a display device is provided, the display device comprising: a power supply component and a display panel as described above;

[0052] The power supply component is connected to the display panel, and the power supply component is used to supply power to the display panel. Attached Figure Description

[0053] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0054] Figure 1 is a partial cross-sectional view of a display panel provided in an embodiment of this application;

[0055] Figure 2 is a top view of a display panel provided in an embodiment of this application;

[0056] Figure 3 is a schematic diagram of the spectrum of a grayscale color filter provided in an embodiment of this application;

[0057] Figure 4 is a top view of another display panel provided in an embodiment of this application;

[0058] Figure 5 is a partial cross-sectional view of another display panel provided in an embodiment of this application;

[0059] Figure 6 is a partial cross-sectional view of another display panel provided in an embodiment of this application;

[0060] Figure 7 is a partial cross-sectional view of another display panel provided in an embodiment of this application;

[0061] Figure 8 is a partial cross-sectional view of another display panel provided in an embodiment of this application;

[0062] Figure 9 is a partial cross-sectional view of another display panel provided in an embodiment of this application;

[0063] Figure 10 is a partial cross-sectional view of another display panel provided in an embodiment of this application;

[0064] Figure 11 is a partial cross-sectional view of another display panel provided in an embodiment of this application;

[0065] Figure 12 is a partial cross-sectional view of another display panel provided in an embodiment of this application;

[0066] Figure 13 is a top view of another display panel provided in an embodiment of this application;

[0067] Figure 14 is a partial cross-sectional view of a touch module provided in an embodiment of this application;

[0068] Figure 15 is a flowchart illustrating the fabrication process of a touch component and a film layer on the side of the touch component away from the substrate in a display panel according to an embodiment of this application.

[0069] Figure 16 is a flowchart illustrating the fabrication process of a touch component and a film layer on the side of the touch component away from the substrate in a display panel according to an embodiment of this application.

[0070] Figure 17 is a partial cross-sectional schematic diagram of the display area of ​​another display panel provided in an embodiment of this application;

[0071] Figure 18 is a partial cross-sectional schematic diagram of the display area of ​​another display panel provided in an embodiment of this application;

[0072] Figure 19 is a partial cross-sectional schematic diagram of the display area of ​​another display panel provided in an embodiment of this application;

[0073] Figure 20 is a partial cross-sectional schematic diagram of the display area of ​​another display panel provided in an embodiment of this application;

[0074] Figure 21 is a partial cross-sectional schematic diagram of the display area of ​​another display panel provided in an embodiment of this application;

[0075] Figure 22 is a partial cross-sectional schematic diagram of the display area of ​​another display panel provided in an embodiment of this application;

[0076] Figure 23 is a test curve of the display panel in the relevant technical solution after 100 hours in an environment with a temperature of 85℃ and a humidity of 85%.

[0077] Figure 24 is a test curve of 100 hours in an environment with a temperature of 85°C and a humidity of 85% when the material of the barrier protective layer in the display panel provided in the embodiment of this application is an inorganic material.

[0078] Figure 25 is a test curve of 100 hours in an environment with a temperature of 85°C and a humidity of 85% when the material of the barrier protective layer in the display panel provided in the embodiment of this application is an organic material.

[0079] Figure 26 is a partial cross-sectional view of another display panel provided in an embodiment of this application;

[0080] Figure 27 is a partial cross-sectional view of a display panel at the location of a crack barrier dam according to an embodiment of this application;

[0081] Figure 28 is a schematic diagram of the structure of a display device provided in an embodiment of this application. Detailed Implementation

[0082] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0083] In some embodiments, to improve the transmittance of the display panel and make it thinner, a polarizer-free (POL) approach is adopted, for example, by replacing the polarizer on the upper side of the light-emitting unit of the display panel with a color filter assembly. To reduce the manufacturing cost and difficulty of the display panel, the color filter assembly in the display panel can be a grayscale color filter (gary CF).

[0084] However, grayscale color filters are prone to absorbing water and oxygen, resulting in fading and a poor yield rate for display panels.

[0085] Figure 1 is a partial cross-sectional view of a display panel provided in an embodiment of this application. Figure 2 is a top view of a display panel provided in an embodiment of this application. Referring to Figures 1 and 2, the display panel 100 includes: a substrate 101, a plurality of pixel units 102, a grayscale color filter (gray CF) 103, and a barrier protective layer 104.

[0086] Referring to FIG2, the substrate 101 has a display area 101a and a peripheral area 101b surrounding the display area 101a. A plurality of pixel units 102 are located on the display area 101a on the substrate 101, and the pixel units 102 can be used to emit light.

[0087] The grayscale color filter 103 is located on the side of the multiple pixel units 102 away from the substrate 101. The light emitted by the pixel units 102 is emitted after passing through the grayscale color filter 103.

[0088] The barrier layer 104 is located on the side of the grayscale color filter 103 away from the substrate 101, and the orthographic projection of the barrier layer 104 on the substrate 101 covers the orthographic projection of the grayscale color filter 103 on the substrate 101. Optionally, the orthographic projection of the barrier layer 104 on the substrate 101 covering the orthographic projection of the grayscale color filter 103 on the substrate 101 can mean that the barrier layer 104 at least covers the surface of the grayscale color filter 103 away from the substrate 101. Or further, the barrier layer 104, in addition to covering the surface of the grayscale color filter 103 away from the substrate 101, also covers at least a portion of the side surface of the grayscale color filter 103.

[0089] For example, the barrier protective layer 104 can completely cover the surface of the grayscale color filter 103 away from the substrate 101, as well as the sides of the grayscale color filter 103. In this case, it can be ensured that the barrier protective layer 104 completely covers the grayscale color filter 103, thereby ensuring the protective effect of the barrier protective layer on the grayscale color filter, preventing the grayscale color filter from being exposed to the outside, and thus preventing the grayscale color filter from absorbing water and oxygen and fading.

[0090] Optionally, the orthographic projection of the boundary 104a of the barrier protective layer 104 on the substrate 101 and the boundary 103a of the orthographic projection 103 of the grayscale color filter 103 on the substrate 101 can be flush, or the orthographic projection of the boundary 104a of the barrier protective layer 104 on the substrate 101 can be further away from the orthographic projection of the boundary 103a of the grayscale color filter 103 on the substrate 101 than the orthographic projection of the boundary 103a of the grayscale color filter 103 on the substrate 101. That is, the boundary 104a of the barrier protective layer 104 and the boundary 103a of the grayscale color filter 103 are flush, or the boundary 104a of the barrier protective layer 104 extends beyond the boundary 103a of the grayscale color filter 103, so that the orthographic projection of the barrier protective layer 104 on the substrate 101 completely covers the orthographic projection of the grayscale color filter 103 on the substrate 101.

[0091] In summary, this application provides a display panel including a substrate, multiple pixel units, a grayscale color filter, and a barrier protective layer. By providing a barrier protective layer on the side of the grayscale color filter away from the substrate, the barrier protective layer can protect the grayscale color filter, preventing it from being exposed and thus preventing it from absorbing water and oxygen and fading, thereby improving the yield of the display panel.

[0092] In this embodiment, the plurality of pixel units 102 may include red (R) pixel units, green (G) pixel units, and blue (B) pixel units. The red pixel unit R can be used to emit red light, the green pixel unit G can be used to emit green light, and the blue pixel unit B can be used to emit blue light.

[0093] Figure 3 is a schematic diagram of the spectrum of a grayscale color filter provided in an embodiment of this application. Referring to Figure 3, it can be seen that the spectrum of the grayscale color filter has transmittance troughs in the wavelength range of 480nm to 530nm and in the wavelength range of 580nm to 630nm. Thus, three transmittance peaks can be obtained at wavelengths of 380nm to 480nm, 480nm to 580nm, and 600nm to 780nm. These three peaks correspond precisely to blue light, green light, and red light, thereby enabling the grayscale color filter to transmit three colors of light.

[0094] Referring to Figure 2, it can be seen that the orthographic projection of the boundary 104a of the barrier protective layer 104 on the substrate 101 is further away from the display area 101a than the orthographic projection of the boundary 103a of the grayscale color filter 103 on the substrate 101.

[0095] Optionally, the distance between the orthographic projection of the boundary 104a of the barrier protective layer 104 onto the substrate 101 and the orthographic projection of the boundary 103a of the grayscale color filter 103 onto the substrate 101 is greater than or equal to 0.86 μm. By making the boundary 104a of the barrier protective layer 104 further away from the display area 101a relative to the boundary 103a of the grayscale color filter 103, and by a distance greater than or equal to 0.86 μm, it can be ensured that the barrier protective layer 104 completely covers the grayscale color filter 103, thus ensuring the protective effect of the barrier protective layer 104 on the grayscale color filter 103.

[0096] For example, the distance between the orthographic projection of the boundary 104a of the barrier protective layer 104 on the substrate 101 and the orthographic projection of the boundary 103a of the grayscale color filter 103 on the substrate 101 is greater than or equal to 1.73 μm, or greater than or equal to 2.5 μm.

[0097] Referring to Figure 2, the surrounding area 101b can include a first area 101b1 and a second area 101b2, which are positioned opposite each other, as well as a third area 101b3 and a fourth area 101b4, which are positioned opposite each other. The first area 101b1 and the second area 101b2 being positioned opposite each other can mean that the first area 101b1 and the second area 101b2 are positioned relative to the display area 101a and are located on either side of the display area 101a in the first direction X. The third area 101b3 and the fourth area 101b4 being positioned opposite each other can mean that the third area 101b3 and the fourth area 101b4 are positioned relative to the display area 101a and are located on either side of the display area 101a in the second direction Y.

[0098] Optionally, the first direction X can be the pixel column direction of the display panel 100, and the second direction Y can be the pixel row direction of the display panel 100. The first region 101b1 can be located below the display region 101a (the first region 101b1 can be called the lower region), the second region 101b2 can be located above the display region 101a (the second region 101b2 can be called the upper region), the third region 101b3 can be located to the left of the display region 101a (the third region 101b3 can be called the left region), and the fourth region 101b4 can be located to the right of the display region 101a (the fourth region 101b4 can be called the right region).

[0099] Typically, the lower region (first region 101b1) of the display panel 100 has a bending area and a bonding area (not shown in Figure 2) arranged in a direction away from the display region 101a. The bonding area can be used to bond with a flexible printed circuit (FPC), on which a driving circuit is integrated. The driving circuit can be connected to the display panel through the bonding area to provide driving signals to the display panel 100. The bending area is mainly for bending, so that the bonding area and the flexible printed circuit connected to the bonding area are located on the non-display surface of the display panel 100, thereby reducing the size of the lower bezel of the display panel 100.

[0100] Because the lower region of the display panel 100 has a bending area and a bonding area, the lower region of the display panel 100 itself is relatively wide. As a result, the distance between the cutting boundary during module cutting and the display area 101a is relatively large, so the cracks generated during cutting usually do not extend from the lower region into the interior of the display panel.

[0101] However, the other three sides of the display panel 100 (the upper, left, and right sides) are relatively narrow, resulting in a small distance between the cutting boundary and the display area 101a during module cutting. Consequently, cracks generated during cutting may extend from these three sides into the interior of the display panel 100. Therefore, to prevent crack extension in these three sides, referring to Figure 4, the display panel 100 also includes crack dams 105 located in the second region 101b2, the third region 101b3, and the fourth region 101b4. The main function of these crack dams 105 is to prevent cracks from extending into the display area 101a.

[0102] Because the design of the lower region of the display panel 100 differs from that of the other three sides, this embodiment of the application describes the display panel using a cross-sectional view of the lower region and cross-sectional views of the other three sides. Figure 5 is a cross-sectional view of a first region of a display panel provided in this embodiment. Figure 6 is a cross-sectional view of any one of the second, third, and fourth regions of a display panel provided in this embodiment. Referring to Figures 1, 5, and 6, it can be seen that the display panel 100 further includes a thin film encapsulation (TFE) 106 located on the side of the plurality of pixel units 102 away from the substrate 101. The encapsulation layer 106 is located in the display region 101a and the peripheral region 101b, and the encapsulation layer 106 can cover the plurality of pixel units 102.

[0103] The main function of the encapsulation film layer 106 is to protect the organic material layer in the display panel 100, prevent moisture and oxygen from penetrating into the pixel unit 102, thereby extending the service life of the display panel 100 and improving its stability.

[0104] Optionally, referring to Figures 1, 5 and 6, the encapsulation film layer 106 may include: a first inorganic encapsulation layer 1061, an organic encapsulation layer 1062 and a second inorganic encapsulation layer 1063 stacked in a direction away from the substrate 101.

[0105] Optionally, the first inorganic encapsulation layer 1061 and the second inorganic encapsulation layer 1063 can be made of inorganic materials, and the organic encapsulation layer 1062 can be made of organic materials. For example, the first inorganic encapsulation layer 1061 and the second inorganic encapsulation layer 1063 can be made of one or more inorganic oxides such as SiNx (silicon nitride), SiOx (silicon oxide), and SiOxNy (silicon oxynitride). The organic encapsulation layer 1062 can be made of resin materials. The resin can be a thermoplastic resin or a thermosetting resin, where the thermoplastic resin can include acrylic (PMMA) resin and the thermosetting resin can include epoxy resin.

[0106] In this embodiment, the organic encapsulation layer 1062 can be fabricated using inkjet printing (IJP). The first inorganic encapsulation layer 1061 and the second inorganic encapsulation layer 1063 can be fabricated using chemical vapor deposition (CVD). The first inorganic encapsulation layer 1061 can be referred to as CVD1 layer, the second inorganic encapsulation layer 1063 can be referred to as CVD2 layer, and the organic encapsulation layer 1062 can be referred to as IJP layer.

[0107] Optionally, the orthographic projection of the boundary of the organic encapsulation layer 1062 onto the substrate 101 is closer to the display area 101a than the orthographic projection of the boundary of the first inorganic encapsulation layer 1061 onto the substrate 101. Similarly, the orthographic projection of the boundary of the organic encapsulation layer 1062 onto the substrate 101 is closer to the display area 101a than the orthographic projection of the boundary of the second inorganic encapsulation layer 1063 onto the substrate 101. That is, the organic encapsulation layer 1062 can be enclosed between the first inorganic encapsulation layer 1061 and the second inorganic encapsulation layer 1063 to prevent the overflow of organic material from the organic encapsulation layer 1062.

[0108] Optionally, the orthographic projection of the boundary of the second inorganic encapsulation layer 1063 onto the substrate 101 is flush with the orthographic projection of the boundary of the first inorganic encapsulation layer 1061 onto the substrate 101. Alternatively, the orthographic projection of the boundary of the second inorganic encapsulation layer 1063 onto the substrate 101 is misaligned with the orthographic projection of the boundary of the first inorganic encapsulation layer 1061 onto the substrate 101. For example, this misalignment could be a manufacturing error caused by manufacturing error when the design is intended to be flush, or it could be a design error in the product design itself. This application does not specifically limit the boundary relationship between the first inorganic encapsulation layer 1061 and the second inorganic encapsulation layer 1063 in its embodiments.

[0109] Optionally, the orthographic projection of the boundary 106a of the encapsulation film layer 106 onto the substrate 101 is further away from the display area 101a than the orthographic projection of the boundary 103a of the grayscale color filter 103 onto the substrate 101. This allows the grayscale color filter 103 to be enclosed within the isolation space formed by the encapsulation film layer 106 and the barrier protective layer 104, ensuring that the grayscale color filter 103 is not exposed and preventing fading due to water and oxygen absorption, thus ensuring the yield of the display panel. It should be noted that the boundary 106a of the encapsulation film layer 106 can refer to the boundary of the first inorganic encapsulation layer 1061 or the boundary of the second inorganic encapsulation layer 1063 that is further away from the display area 101a.

[0110] As an alternative implementation, referring to Figures 5 and 6, the orthographic projection of the boundary 104a of the barrier protective layer 104 on the substrate 101 lies between the orthographic projection of the boundary 103a of the grayscale color filter 103 on the substrate 101 and the orthographic projection of the boundary 106a of the encapsulation film layer 106 on the substrate 101.

[0111] The orthographic projection of the boundary 104a of the barrier protective layer 104 onto the substrate 101, located between the orthographic projection of the boundary 103a of the grayscale color filter 103 onto the substrate 101 and the orthographic projection of the boundary 106a of the encapsulation film layer 106 onto the substrate 101, can mean that the boundary 104a of the barrier protective layer 104 is farther away from the display area 101a relative to the boundary 103a of the grayscale color filter 103, and the boundary 104a of the barrier protective layer 104 can be flush with the boundary 106a of the encapsulation film layer 106 or closer to the display area 101a relative to the boundary 106a of the encapsulation film layer 106.

[0112] When the boundary 104a of the barrier protective layer 104 is farther away from the display area 101a than the boundary 103a of the grayscale color filter 103, and the boundary 104a of the barrier protective layer 104 is closer to the display area 101a than the boundary 106a of the encapsulation film layer 106, the boundary 103a of the grayscale color filter 103, the boundary 104a of the barrier protective layer 104, and the boundary 106a of the encapsulation film layer 106 can be arranged sequentially in a direction away from the display area 101a.

[0113] In this embodiment, since inorganic materials typically affect the bending of the bending area b1 of the display panel 100 and the cutting of the module, the inorganic material layer can be designed as follows to reduce its influence: the inorganic material layer in the display panel 100 ends before the bending area b1 of the first region 101b1, and before the crack barrier dam 105 of the second region 101b2, the third region 101b3, and the fourth region 101b4; or, the inorganic material layer located in the first region 101b1 can be removed, and the inorganic material layer ends before the crack barrier dam 105 of the second region 101b2, the third region 101b3, and the fourth region 101b4.

[0114] Therefore, when the material of the barrier protective layer 104 is an inorganic material, that is, the orthogonal projection of the barrier protective layer 104 on the substrate 101 is not located in the bending region b1. For example, as shown in FIG5, at least the portion of the barrier protective layer 104 located in the display region 101a ends before the bending region b1 of the first region 101b1, and the other portion can be located in the bonding region b2.

[0115] Optionally, the barrier protective layer may include two parts. The first part of the barrier protective layer 104 is located at least in the display area 101a, and this first part may also be located in the area of ​​the bend region b1 of the first region 101b1 in the peripheral area 101b, near the display area 101a. The second part of the barrier protective layer 104 may be located in the bonding area b2. That is, the boundary of the first part of the barrier protective layer 104 ends before the bend region b1 of the first region 101b1, and the second part of the barrier protective layer 104 may be located in the bonding area b2.

[0116] Of course, to ensure that the barrier layer 104 does not affect the setting of the film layer or device, the boundary 104a of the barrier layer 104 can be flush with the boundary 106a of the encapsulation film layer 106 or closer to the display area 101a relative to the boundary 106a of the encapsulation film layer 106. That is, the barrier layer 104 may also exclude the second part located in the bonding area b2.

[0117] For the first region 101b1, the boundary 104a of the barrier protective layer 104 being flush with or closer to the boundary 106a of the encapsulation film layer 106 relative to the boundary 106a of the encapsulation film layer 106 can mean that the boundary of the portion of the barrier protective layer 104 near the bending region b1 is flush with or closer to the boundary 106a of the encapsulation film layer 106 relative to the boundary 106a of the encapsulation film layer 106. In addition, for the first region 101b1, the barrier protective layer 104 may also include a portion located on the side of the bending region b1 away from the display region 101a (e.g., located in the bonding region b2), as long as this portion does not affect the bonding of the bonding region b2 and the flexible circuit board.

[0118] Optionally, although organic materials have a smaller impact on the bending of the display panel 100 and the cutting of the module, when the material of the barrier protective layer 104 is an organic material, the orthographic projection of the boundary 104a of the barrier protective layer 104 on the substrate 101 can also be located between the orthographic projection of the boundary 103a of the grayscale color filter 103 on the substrate 101 and the orthographic projection of the boundary 106a of the encapsulation film layer 106 on the substrate 101.

[0119] That is, the material of the barrier protective layer 104 in Figures 5 and 6 above can be either inorganic or organic. This application does not limit this.

[0120] Optionally, the material of the barrier layer 104 can be similar to the materials of the first inorganic encapsulation layer 1061 and the second inorganic encapsulation layer 1063 in the encapsulation film layer 106. For example, the material of the barrier layer 104 can be SiNx (silicon nitride), with a refractive index ranging from 1.8 to 1.85. The material of the barrier layer 104 can be SiOxNy (silicon oxynitride), with a refractive index ranging from 1.5 to 1.8. The material of the barrier layer 104 can be SiOx (silicon oxide), with a refractive index ranging from 1.45 to 1.5. The thickness of the barrier layer 104 can range from 1000 angstroms to 5000 angstroms.

[0121] Alternatively, the material of the barrier protective layer 104 can be optical adhesive (OC). Optical adhesive (OC) is a type of resin, typically made of materials such as silicone, acrylic resin, unsaturated polyester, polyurethane, and epoxy resin. Optionally, the water vapor transmission rate of the optical adhesive (OC) is less than or equal to 10. -1g / m² / D (grams per square meter per day). Water vapor transmission rate is a crucial indicator of a material's ability to block water vapor permeation. A lower water vapor transmission rate in the barrier layer 104 indicates a stronger ability to block water vapor permeation, making it less likely for water and oxygen to enter the grayscale color filter 103, thus ensuring the reliability of the grayscale color filter 103. The refractive index of the barrier layer 104 ranges from 1.5 to 1.8, and its thickness is greater than or equal to 1 μm.

[0122] As an alternative implementation, referring to Figures 7 and 8, the orthographic projection of the boundary 104a of the barrier protective layer 104 on the substrate 101 is further away from the display area 101a than the orthographic projection of the boundary 106a of the encapsulation film layer 106 on the substrate 101.

[0123] Organic materials have a smaller impact on the bending of the display panel 100 and the cutting of the module. Therefore, in the cases of Figures 7 and 8 above, the material of the barrier protective layer 104 can be an organic material, and the barrier protective layer 104 can be retained or removed in the bending area. In contrast, inorganic materials have a larger impact on the bending of the display panel 100 and the cutting of the module. Therefore, in the cases of Figures 7 and 8 above, the material of the barrier protective layer 104 does not need to be an inorganic material.

[0124] In this embodiment of the application, referring to Figures 4 to 8, the display panel 100 further includes a blocking structure 107 located in the peripheral region 101b and surrounding the display region 101a. The orthographic projection of the blocking structure 107 on the substrate 101 lies within the orthographic projection of the encapsulation film layer 106 on the substrate 101.

[0125] Referring to Figure 4, the barrier structure 107 can be a ring-shaped structure surrounding multiple pixel units 102, used to prevent the overflow of organic material layers in the display panel 100 within the area enclosed by the barrier structure 107. Optionally, the organic encapsulation layer 1062 of the encapsulation film layer 106 can be located within the area enclosed by the barrier structure 107, and the first inorganic encapsulation layer 1061 and the second inorganic encapsulation layer 1063 can cover the area enclosed by the barrier structure 107 and also cover the barrier structure 107. That is, the orthographic projection of the barrier structure 107 on the substrate 101 is located within the area covered by the encapsulation film layer 106, thereby ensuring that the encapsulation film layer 106 effectively encapsulates each structure within the area enclosed by the barrier structure 107.

[0126] Optionally, the orthographic projection of the boundary 103a of the grayscale color filter 103 onto the substrate 101 is located on the side of the orthographic projection of the barrier structure 107 onto the substrate 101 closer to the display area 101a. The orthographic projection of the boundary 104a of the barrier protective layer 104 onto the substrate 101 is further away from the display area 101a than the orthographic projection of the boundary of the barrier structure 107 on the side closer to the display area 101a. That is, in this embodiment, the grayscale color filter 103 and the barrier protective layer 104 can be designed with the barrier structure 107 as a reference, ensuring that the barrier protective layer 104 covers the grayscale color filter 103 and that the grayscale color filter 103 is not exposed.

[0127] Referring to Figures 4 to 8, the blocking structure 107 may include a first blocking dam (dam1) 1071 and a second blocking dam (dam2) 1072. The first blocking dam 1071 is closer to the display area 101a than the second blocking dam 1072, and the thickness of the second blocking dam 1072 may be greater than the thickness of the first blocking dam 1071.

[0128] By setting two blocking dams, with the thickness of the second blocking dam 1072, which is farther from the display area 101a, being greater than the thickness of the first blocking dam 1071, which is closer to the display area 101a, the overflow of the organic material layer within the area enclosed by the blocking structure 107 can be further prevented. Of course, the blocking structure 107 may also include one blocking dam or two or more blocking dams, and this embodiment of the application does not limit this.

[0129] Optionally, referring to Figures 5 to 8, the orthographic projection of the boundary 103a of the grayscale color filter 103 onto the substrate 101 is flush with the orthographic projection of the first barrier dam 1071 onto the substrate 101, or is located on the side of the first barrier dam 1071 onto the substrate 101 closer to the display area 101a. The orthographic projection of the boundary 104a of the barrier protective layer 104 onto the substrate 101 is further away from the display area 101a than the orthographic projection of the first barrier dam 1071 onto the substrate 101.

[0130] Optionally, the grayscale color filter 103 and the barrier protective layer 104 are designed with the boundary of the first barrier dam 1071 near the display area 101a as a reference. The orthographic projection of the boundary 103a of the grayscale color filter on the substrate 101 is flush with the orthographic projection of the boundary of the first barrier dam 1071 near the display area 101a on the substrate 101, or the orthographic projection of the boundary of the first barrier dam 1071 near the display area 101a on the substrate 101 is close to the display area 101a. The orthographic projection of the boundary 104a of the barrier protective layer 104 on the substrate 101 is further away from the display area 101a than the orthographic projection of the boundary of the first barrier dam 1071 near the display area 101a on the substrate 101.

[0131] For example, the distance between the orthographic projection of the boundary 104a of the barrier layer 104 on the substrate 101 and the boundary of the first barrier dam 1071 near the display area 101a is greater than or equal to 1.72 μm. Alternatively, the distance between the orthographic projection of the boundary 104a of the barrier layer 104 on the substrate 101 and the boundary of the first barrier dam 1071 near the display area 101a is greater than or equal to 3.46 μm. The distance between the orthographic projection of the boundary 104a of the barrier layer 104 on the substrate 101 and the boundary of the first barrier dam 1071 near the display area 101a is greater than or equal to 5 μm.

[0132] Alternatively, the grayscale color filter 103 and the barrier protective layer 104 can be designed with the boundary of the first barrier dam 1071 on the side furthest from the display area 101a as a reference. The orthographic projection of the boundary 103a of the grayscale color filter on the substrate 101 is flush with the orthographic projection of the boundary of the first barrier dam 1071 on the side furthest from the display area 101a on the substrate 101, or the orthographic projection of the boundary of the first barrier dam 1071 on the side furthest from the display area 101a on the substrate 101 is closer to the display area 101a. The orthographic projection of the boundary 104a of the barrier protective layer 104 on the substrate 101 is further away from the display area 101a than the orthographic projection of the boundary of the first barrier dam 1071 on the side furthest from the display area 101a on the substrate 101.

[0133] For example, the distance between the orthographic projection of the boundary 104a of the barrier layer 104 on the substrate 101 and the boundary of the first barrier dam 1071 on the side away from the display area 101a is greater than or equal to 1.72 μm. Alternatively, the distance between the orthographic projection of the boundary 104a of the barrier layer 104 on the substrate 101 and the boundary of the first barrier dam 1071 on the side away from the display area 101a is greater than or equal to 3.46 μm. Or, the distance between the orthographic projection of the boundary 104a of the barrier layer 104 on the substrate 101 and the boundary of the first barrier dam 1071 on the side away from the display area 101a is greater than or equal to 5 μm.

[0134] Alternatively, the grayscale color film 103 and the barrier protection layer 104 can be designed based on any position between the boundary of the first barrier dam 1071 on the side closer to the display area 101a and the boundary of the first barrier dam on the side farther from the display area 101a. It is only necessary to ensure that the barrier protection layer 104 protects the grayscale color film 103 and prevents the grayscale color film 103 from fading due to the adsorption of water and oxygen.

[0135] When designing the grayscale color filter 103 and the barrier protective layer 104 with the first barrier dam 1071 as a reference, the material and boundary design of the barrier protective layer 104 can be similar to those in the above embodiments. Optionally, when the orthographic projection of the boundary 104a of the barrier protective layer 104 on the substrate 101 is flush with or closer to the orthographic projection of the boundary 106a of the encapsulation film layer 106 on the substrate 101, the material of the barrier protective layer 104 can be an inorganic or organic material. Alternatively, when the orthographic projection of the boundary 104a of the barrier protective layer 104 on the substrate 101 is farther from the display area 101a than the orthographic projection of the boundary 106a of the encapsulation film layer 106 on the substrate 101, the material of the barrier protective layer 104 can be an organic material.

[0136] Optionally, referring to Figures 9 to 12, the orthographic projection of the boundary 103a of the grayscale color filter 103 onto the substrate 101 is flush with, or located on, the side of the orthographic projection of the second barrier dam 1072 onto the substrate 101 that is closer to the display area 101a. The orthographic projection of the boundary 104a of the barrier protective layer 104 onto the substrate 101 is further away from the display area 101a than the orthographic projection of the second barrier dam 1072 onto the substrate 101.

[0137] Optionally, the grayscale color filter 103 and the barrier protective layer 104 are designed with the boundary of the second barrier dam 1072 on the side near the display area 101a as a reference. The orthographic projection of the boundary 103a of the grayscale color filter on the substrate 101 is flush with the orthographic projection of the boundary of the second barrier dam 1072 on the side near the display area 101a on the substrate 101, or the orthographic projection of the boundary of the second barrier dam 1072 on the side near the display area 101a on the substrate 101 is close to the side of the display area 101a. The orthographic projection of the boundary 104a of the barrier protective layer 104 on the substrate 101 is further away from the display area 101a than the orthographic projection of the boundary of the second barrier dam 1072 on the side near the display area 101a on the substrate 101.

[0138] For example, the distance between the orthographic projection of the boundary 104a of the barrier layer 104 on the substrate 101 and the boundary of the second barrier dam 1072 near the display area 101a is greater than or equal to 1.72 μm. Alternatively, the distance between the orthographic projection of the boundary 104a of the barrier layer 104 on the substrate 101 and the boundary of the second barrier dam 1072 near the display area 101a is greater than or equal to 3.46 μm. Or, the distance between the orthographic projection of the boundary 104a of the barrier layer 104 on the substrate 101 and the boundary of the second barrier dam 1072 near the display area 101a is greater than or equal to 5 μm.

[0139] Alternatively, the grayscale color filter 103 and the barrier layer 104 can be designed with the boundary of the second barrier dam 1072 on the side furthest from the display area 101a as a reference. The orthographic projection of the boundary 103a of the grayscale color filter on the substrate 101 is flush with the orthographic projection of the boundary of the second barrier dam 1072 on the side furthest from the display area 101a on the substrate 101, or the orthographic projection of the boundary of the second barrier dam 1072 on the side furthest from the display area 101a on the substrate 101 is closer to the side of the display area 101a. The orthographic projection of the boundary 104a of the barrier layer 104 on the substrate 101 is further away from the display area 101a than the orthographic projection of the boundary of the second barrier dam 1072 on the side furthest from the display area 101a on the substrate 101.

[0140] For example, the distance between the orthographic projection of the boundary 104a of the barrier layer 104 on the substrate 101 and the boundary of the second barrier dam 1072 on the side away from the display area 101a is greater than or equal to 1.72 μm. Alternatively, the distance between the orthographic projection of the boundary 104a of the barrier layer 104 on the substrate 101 and the boundary of the second barrier dam 1072 on the side away from the display area 101a is greater than or equal to 3.46 μm. Or, the distance between the orthographic projection of the boundary 104a of the barrier layer 104 on the substrate 101 and the boundary of the second barrier dam 1072 on the side away from the display area 101a is greater than or equal to 5 μm.

[0141] Alternatively, the grayscale color film 103 and the barrier protection layer 104 can be designed based on any position between the boundary of the second barrier 1072 on the side closer to the display area 101a and the boundary of the second barrier 1072 on the side farther from the display area 101a. It is only necessary to ensure that the barrier protection layer 104 protects the grayscale color film 103 and prevents the grayscale color film 103 from fading due to the adsorption of water and oxygen.

[0142] When designing the grayscale color filter 103 and the barrier protective layer 104 with reference to the second barrier dam 1072, the material and boundary design of the barrier protective layer 104 can be similar to those in the above embodiments. Optionally, when the orthographic projection of the boundary 104a of the barrier protective layer 104 on the substrate 101 is flush with or closer to the orthographic projection of the boundary 106a of the encapsulation film layer 106 on the substrate 101, the material of the barrier protective layer 104 can be an inorganic or organic material. Alternatively, when the orthographic projection of the boundary 104a of the barrier protective layer 104 on the substrate 101 is farther from the orthographic projection of the boundary 106a of the encapsulation film layer 106 on the substrate 101, the material of the barrier protective layer 104 can be an organic material, and the barrier protective layer 104 can be retained or removed in the bending area.

[0143] It should be noted that, in this embodiment of the application, the grayscale color film 103 and the barrier protection layer 104 can also be designed based on any position between the boundary of the first barrier 1071 on the side away from the display area 101a and the boundary of the second barrier 1072 on the side close to the display area 101a. As long as the barrier protection layer 104 can protect the grayscale color film 103 and prevent the grayscale color film 103 from fading due to the adsorption of water and oxygen, it is sufficient.

[0144] In this embodiment of the application, referring to FIG1 and FIGS. 5 to 12, the display panel 100 further includes a touch component 108 and a black matrix (BM) 109. The touch component 108 is located on the side of the plurality of pixel units 102 away from the substrate 101. The touch component 108 includes a first touch wiring layer 1081, a touch insulating layer 1082, and a second touch wiring layer 1083 stacked along a direction away from the substrate 101. When the display panel 100 includes the touch component 108, the display panel 100 may also be referred to as a touch panel. The first touch wiring layer 1081 is not shown in FIGS. 5 to 12.

[0145] Optionally, referring to Figure 1, the touch component 108 further includes a touch buffer layer 1084 located on the side of the first touch wiring layer 1081 near the substrate 101. The touch buffer layer 1084 facilitates the fabrication of the first touch wiring layer 1081, the touch insulating layer 1082, and the second touch wiring layer 1083. The material of the touch buffer layer 1084 can be an inorganic material, such as one or more inorganic oxides like SiNx (silicon nitride), SiOx (silicon oxide), and SiOxNy (silicon oxynitride).

[0146] The first touch wiring layer 1081 and the second touch wiring layer 1083 both include touch electrode lines s1. The orthographic projection of the touch electrode lines s1 on the substrate 101 and the orthographic projection of the light-emitting area of ​​the pixel unit 102 on the substrate 101 do not overlap.

[0147] Optionally, the first touch trace layer 1081 may also be referred to as the first touch metal layer (Touch metal layer A, TMA) of the display panel 100, and the second touch trace layer 1083 may also be referred to as the second touch metal layer (Touch metal layer B, TMB) of the display panel 100.

[0148] In this embodiment, the touch electrode lines s1 included in the first touch wiring layer 1081 and the second touch wiring layer 1083 can constitute first touch electrodes s11 and second touch electrodes s12. For example, the first touch electrode s11 includes a main electrode s111 and a bridging electrode s112. Referring to Figures 13 and 14, one of the touch electrode layers in the first touch wiring layer 1081 and the second touch wiring layer 1083 (taking the first touch wiring layer 1081 as an example in Figure 13) includes multiple bridging electrodes s112 for the first touch electrodes s11, and the other touch electrode layer in the first touch wiring layer 1081 and the second touch wiring layer 1083 (taking the second touch wiring layer 1083 as an example in Figure 13) includes multiple main electrodes s111 for the first touch electrodes s11 and multiple second touch electrodes s12. The portion of the touch insulating layer 1082 located in the display area 101a includes multiple vias G, and the bridging electrode s112 and the main electrode s111 are electrically connected through the vias G in the touch insulating layer 1082.

[0149] Optionally, the second touch electrode s12 may also include a main electrode s111 and a bridging electrode s112. The main electrode s111 and the bridging electrode s112 of the second touch electrode s12 may be located on the same touch routing layer or on different touch routing layers; this embodiment does not limit this.

[0150] For example, the bridging electrode s112 of the first touch electrode s11 is located in the first touch wiring layer 1081, and the main electrode s111 of the first touch electrode s11, as well as the main electrode s111 and the bridging electrode s112 of the second touch electrode s12, can be located in the second touch wiring layer 1083.

[0151] Optionally, one of the first touch electrode s11 and the second touch electrode s12 is a transmitting (TX) electrode and the other is a sensing (RX) electrode.

[0152] Referring to Figure 13, the display panel includes a plurality of first touch electrodes s11 arranged along a first direction X, and a plurality of second touch electrodes a12 arranged along a second direction Y. Furthermore, the orthographic projections of the bridging electrodes s112 of the first touch electrodes s11 onto the substrate 101 and the orthographic projections of the second touch electrodes s12 onto the substrate 101 overlap. The first direction X and the second direction Y intersect, for example, the first direction X and the second direction Y are perpendicular.

[0153] In this embodiment, the first touch trace layer 1081 and the second touch trace layer 1083 may further include touch signal lines s2 located at least in the peripheral region 101b. The touch signal lines s2 are connected to the touch electrode lines s1. For example, the touch signal lines s2 may be connected to the first touch electrode s11 or the second touch electrode s12 to transmit signals to the touch electrodes.

[0154] Optionally, the display panel 100 may include multiple touch signal lines s2, a portion of which are connected to a first touch electrode s11, and another portion of which are connected to a second touch electrode s12.

[0155] Optionally, the display panel 100 may also include multiple touch interfaces s3, which can be connected to touch signal lines s2. The touch interfaces s3 are also used to receive touch signals from the driving circuit.

[0156] Optionally, the driving circuit can be integrated onto a flexible circuit board, which can be connected to the touch interface s3. The touch interface s3 is further connected to the touch electrodes via touch signal lines s2. The touch interface s3 is used to bond the flexible circuit board to the display panel 100.

[0157] Referring to Figure 1, the black matrix 109 is located on the side of the plurality of pixel units 102 away from the substrate 101. The black matrix 109 has a plurality of openings K corresponding to the plurality of pixel units 102. Each opening K is used to expose the light-emitting area of ​​a corresponding pixel unit 102, and the light emitted by each pixel unit 102 can exit from the corresponding opening K position.

[0158] In this embodiment, since the black matrix 109 is used to define the light-emitting area of ​​the multiple pixel units 102, in order to ensure that the light emitted by the multiple pixel units 102 can pass through the grayscale color filter 103 and then be emitted, the orthogonal projection of the grayscale color filter 103 on the substrate 101 can cover the orthogonal projection of the black matrix 109 on the substrate 101.

[0159] Optionally, the orthographic projection of the boundary 103a of the grayscale color filter 103 onto the substrate 101 is further away from the display area 101a than the orthographic projection of the boundary 103a of the black matrix 109 onto the substrate 101, thereby ensuring that the grayscale color filter 103 can completely cover the black matrix 109. Furthermore, the orthographic projection of the boundary 104a of the barrier protective layer 104 onto the substrate 101 is further away from the display area 101a than the orthographic projection of the boundary 103a of the grayscale color filter 103 onto the substrate 101, to ensure the protective effect of the barrier protective layer 104 on the grayscale color filter 103.

[0160] That is, the orthographic projection of the boundary 103a of the grayscale color filter 103 onto the substrate 101 lies between the orthographic projection of the boundary 104a of the barrier protective layer 104 onto the substrate 101 and the orthographic projection of the boundary of the black matrix 109 onto the substrate 101.

[0161] Optionally, the minimum value 'a' of the edge of the grayscale color filter 103 covering the black matrix 109 can be calculated based on the manufacturing tolerance of the black matrix, the manufacturing tolerance of the grayscale color filter 103, and the alignment tolerance of the black matrix 109 and the grayscale color filter. For example, 'a' satisfies:

[0162] In formula (1) above, a is the minimum value of the edge of the grayscale color filter 103 covering the black matrix 109, or a can also be called the cumulative design value of the tolerance of the grayscale color filter 103 covering the black matrix 109. a1 is the manufacturing tolerance of the black matrix, a2 is the manufacturing tolerance of the grayscale color filter 103, and a3 is the alignment tolerance of the black matrix 109 and the grayscale color filter.

[0163] For example, when a1, a2, and a3 are all 1, the cumulative tolerance design value a is greater than or equal to 1. That is, a ≥ 1.73 μm. When a1, a2, and a3 are all 0.5, the cumulative design tolerance value a is greater than or equal to... That is, a ≥ 0.86.

[0164] That is, the distance between the orthographic projection of the boundary 103a of the grayscale color filter 103 onto the substrate 101 and the orthographic projection of the boundary of the black matrix 109 onto the substrate 101 is greater than or equal to the tolerance cumulative design value 'a'. For example, the distance between the orthographic projection of the boundary 103a of the grayscale color filter 103 onto the substrate 101 and the orthographic projection of the boundary of the black matrix 109 onto the substrate 101 is greater than or equal to 0.86 μm. Or, the distance between the orthographic projection of the boundary 103a of the grayscale color filter 103 onto the substrate 101 and the orthographic projection of the boundary of the black matrix 109 onto the substrate 101 is greater than or equal to 1.73 μm.

[0165] Optionally, the minimum value of the edge of the grayscale color filter 103 covered by the barrier protective layer 104 can be determined with reference to the above formula (1). For example, the distance between the orthographic projection of the boundary 104a of the barrier protective layer 104 on the substrate 101 and the orthographic projection of the boundary 104a of the grayscale color filter 103 on the substrate 101 is greater than or equal to the tolerance cumulative design value a. Therefore, the distance between the orthographic projection of the boundary 104a of the barrier protective layer 104 on the substrate 101 and the orthographic projection of the boundary of the black matrix 109 on the substrate 101 is greater than or equal to 2a.

[0166] For example, when the distance between the orthographic projection of the boundary 103a of the grayscale color filter 103 onto the substrate 101 and the orthographic projection of the boundary of the black matrix 109 onto the substrate 101 is greater than or equal to 0.86 μm, and the distance between the orthographic projection of the boundary 104a of the barrier protective layer 104 onto the substrate 101 and the orthographic projection of the boundary 104a of the grayscale color filter 103 onto the substrate 101 is greater than or equal to 0.86 μm, the distance between the orthographic projection of the boundary 104a of the barrier protective layer 104 onto the substrate 101 and the orthographic projection of the boundary of the black matrix 109 onto the substrate 101 is greater than or equal to 1.72 μm.

[0167] Alternatively, if the distance between the orthographic projection of the boundary 103a of the grayscale color filter 103 onto the substrate 101 and the orthographic projection of the boundary of the black matrix 109 onto the substrate 101 is greater than or equal to 1.73 μm, and the distance between the orthographic projection of the boundary 104a of the barrier protective layer 104 onto the substrate 101 and the orthographic projection of the boundary 104a of the grayscale color filter 103 onto the substrate 101 is greater than or equal to 1.73 μm, then the distance between the orthographic projection of the boundary 104a of the barrier protective layer 104 onto the substrate 101 and the orthographic projection of the boundary of the black matrix 109 onto the substrate 101 is greater than or equal to 3.46 μm.

[0168] Alternatively, if the distance between the orthographic projection of the boundary 103a of the grayscale color filter 103 onto the substrate 101 and the orthographic projection of the boundary of the black matrix 109 onto the substrate 101 is greater than or equal to 2.5 μm, and the distance between the orthographic projection of the boundary 104a of the barrier protective layer 104 onto the substrate 101 and the orthographic projection of the boundary 104a of the grayscale color filter 103 onto the substrate 101 is greater than or equal to 2.5 μm, then the distance between the orthographic projection of the boundary 104a of the barrier protective layer 104 onto the substrate 101 and the orthographic projection of the boundary of the black matrix 109 onto the substrate 101 is greater than or equal to 5 μm.

[0169] Referring to Figures 5 to 12, the orthographic projection of the boundary of the black matrix 109 on the substrate 101 is located on the side of the orthographic projection of the blocking structure 107 on the substrate that is closer to the display area 101a.

[0170] Referring to Figures 5 to 8, the orthographic projection of the boundary of the black matrix 109 on the substrate 101 is the same as the orthographic projection of the boundary of the first barrier dam 1071 on the side near the display area 101a. The orthographic projection of the boundary 103a of the grayscale color filter 103 on the substrate 101 can be flush with the orthographic projection of the boundary of the first barrier dam 1071 on the side near the display area 101a, or the orthographic projection of the boundary of the first barrier dam 1071 on the side near the display area 101a can be the same as the orthographic projection of the boundary of the first barrier dam 1071 on the side near the display area 101a.

[0171] Alternatively, referring to Figures 9 to 12, the orthographic projection of the boundary of the black matrix 109 on the substrate 101 overlaps with the orthographic projection of the first barrier dam 1071 on the substrate 101, and the orthographic projection of the second barrier dam 1072 on the substrate 101 also overlaps. Furthermore, the orthographic projection of the boundary of the black matrix 109 on the substrate 101 is located on the side of the second barrier dam 1072 furthest from the display area 101a, while the orthographic projection of the boundary of the second barrier dam 1072 furthest from the display area 101a is located on the side of the substrate 101 closest to the display area 101a. The orthographic projection of the boundary 103a of the grayscale color filter 103 on the substrate 101 can be flush with the orthographic projection of the boundary of the second barrier dam 1072 furthest from the display area 101a, or the orthographic projection of the boundary of the second barrier dam 1072 furthest from the display area 101a is located on the side of the substrate 101 closest to the display area 101a.

[0172] In this embodiment, referring to FIG1 and FIGS. 5 to 12, the black matrix 109 is located on the side of the touch component 108 away from the substrate 101. The grayscale color filter 103 is located on the side of the black matrix 109 away from the substrate 101, and is also located within multiple openings K of the black matrix 109. That is, during the fabrication process of the display panel 100, the black matrix 109, the grayscale color filter 103, and the barrier protective layer 104 can be fabricated sequentially after the touch component 108 is fabricated. This scheme has a high degree of matching with the process flow of existing technology products, without the need for significant changes to the fabrication line, thus saving costs.

[0173] Figure 15 is a flowchart illustrating the fabrication process of a touch component and a film layer on the side of the touch component away from the substrate in a display panel according to an embodiment of this application. Referring to Figure 15, when the barrier protective layer is made of an inorganic material, the fabrication process includes: depositing a touch buffer layer; forming a first touch trace layer (depositing to form a first touch trace film, and etching the first touch trace film using a mask to obtain touch electrode lines); forming a touch insulating layer (depositing to form a touch insulating film, and etching the touch insulating film using a mask to obtain vias G); forming a second touch trace layer (depositing to form a second touch trace film, and etching the second touch trace layer using a mask to obtain vias G). The process involves etching a thin film to obtain touch electrode lines (which can be electrically connected to the touch electrode lines of the first touch trace layer via via G); forming a black matrix (forming a black matrix thin film, and etching the black matrix thin film using a mask to obtain an opening K); forming a grayscale color filter (forming a grayscale color filter thin film, and etching the grayscale color filter thin film using a mask to obtain a grayscale color filter); and forming a barrier protective layer (forming a barrier protective film, and etching the barrier protective film using a mask to obtain a barrier protective layer). Since the barrier protective layer is made of an inorganic material, the surface water droplet angle of the barrier protective layer is approximately 30°, which ensures better adhesion between subsequent processes and the optical adhesive (OCA).

[0174] The surface water droplet angle, also known as the surface contact angle, is used to evaluate the wettability of a solid surface. The hydrophilicity or hydrophobicity of the solid surface is determined by measuring the angle at which a liquid droplet forms on it. A smaller surface water droplet angle indicates better hydrophilicity of the material, resulting in better bonding in subsequent lamination processes. Therefore, the surface water droplet angle of the barrier protective layer in this embodiment is approximately 30° (i.e., relatively small), thus ensuring better adhesion between subsequent processes and the optical adhesive (OCA).

[0175] Figure 16 is a flowchart illustrating the fabrication process of a touch component and a film layer on the side of the touch component away from the substrate in a display panel according to an embodiment of this application. Referring to Figure 16, when the barrier protective layer is made of an organic material, the fabrication process includes: depositing a touch buffer layer; forming a first touch trace layer (depositing to form a first touch trace film, and etching the first touch trace film using a mask to obtain touch electrode lines); forming a touch insulating layer (depositing to form a touch insulating film, and etching the touch insulating film using a mask to obtain vias G); forming a second touch trace layer (depositing to form a second touch trace film, and etching the second touch trace film using a mask to obtain vias G). The process involves several steps: forming control electrode lines (touch electrode lines can be electrically connected to the touch electrode lines of the first touch trace layer through vias G); forming a black matrix (forming a black matrix thin film, and etching the black matrix thin film using a mask to obtain openings K); forming a grayscale color filter (forming a grayscale color filter thin film, and etching the grayscale color filter thin film using a mask to obtain a grayscale color filter); forming a barrier protective layer (forming a barrier protective film, and etching the barrier protective film using a mask to obtain a barrier protective layer); and performing surface plasma treatment on the display panel. Since the barrier protective layer is made of organic material, the surface water droplet angle of the barrier protective layer is approximately 60°. Therefore, performing surface plasma treatment on the display panel can reduce the surface water droplet angle of the display panel to less than 35°.

[0176] Figure 17 is a partial cross-sectional schematic diagram of the display area of ​​another display panel provided in an embodiment of this application. Referring to Figure 17, the grayscale color filter 103 can be located between the first touch wiring layer 1081 and the second touch wiring layer 1083, and the grayscale color filter 103 is reused as a touch insulating layer 1082. That is, during the fabrication process of the display panel 100, after the touch buffer layer 1084 and the first touch wiring layer 1081 of the touch component 108 are fabricated, the grayscale color filter 103 (reused as a touch insulating layer 1082) is formed on one side of the first touch wiring layer 1081 using the grayscale color filter 103 material; after the grayscale color filter 103 is fabricated, the second touch wiring layer 1083 and the black matrix 109 are sequentially formed on the side of the grayscale color filter 103 away from the substrate 101.

[0177] Optionally, in order to protect the grayscale color filter 103, the barrier protective layer 104 needs to be disposed on the side of the grayscale color filter 103 away from the substrate 101.

[0178] Option 1, referring to Figure 18, involves a barrier protective layer 104 located between the second touch wiring layer 1083 and the grayscale color filter 103. In this case, during the fabrication of the display panel 100, after the touch buffer layer 1084 and the first touch wiring layer 1081 of the touch component 108 are fabricated, a grayscale color filter 103 (reused as a touch insulating layer 1082) can be formed on one side of the first touch wiring layer 1081 using the grayscale color filter 103 material. After the grayscale color filter 103 is fabricated, the barrier protective layer 104, the second touch wiring layer 1083, and the black matrix 109 are sequentially formed on the side of the grayscale color filter 103 away from the substrate 101.

[0179] Option 2, referring to Figure 19, the barrier protection layer 104 is located between the second touch wiring layer 1083 and the black matrix 109. In this case, during the fabrication of the display panel 100, after the touch buffer layer 1084 and the first touch wiring layer 1081 of the touch component 108 are fabricated, a grayscale color film 103 (reused as a touch insulating layer 1082) is formed on one side of the first touch wiring layer 1081 using grayscale color film 103 material. After the grayscale color film 103 is fabricated, the second touch wiring layer 1083, the barrier protection layer 104, and the black matrix 109 are sequentially formed on the side of the grayscale color film 103 away from the substrate 101.

[0180] Option 3, referring to Figures 17 and 20, involves the barrier layer 104 located on the side of the black matrix 109 away from the substrate 101, and also within the opening K of the black matrix 109. In this case, during the fabrication of the display panel 100, after the touch buffer layer 1084 and the first touch trace layer 1081 of the touch component 108 are fabricated, a grayscale color filter 103 (reused as a touch insulating layer 1082) is formed on one side of the first touch trace layer 1081 using grayscale color filter 103 material. After the grayscale color filter 103 is fabricated, a second touch trace layer 1083, the black matrix 109, and the barrier layer 104 are sequentially formed on the side of the grayscale color filter 103 away from the substrate 101.

[0181] In the above three schemes, the material of the barrier protective layer 104 can be either inorganic or organic, and this application embodiment does not limit this. In the above three schemes and any of the schemes in Figure 1, the display panel 100 may further include an organic protective layer 110 located on the side of the black matrix 109 away from the substrate 101. This organic protective layer 110 can be used to protect the black matrix 109 and for planarization. This organic protective layer 110 may be referred to as a color filter OC (or simply COC) layer.

[0182] Regarding the third option, referring to Figure 17, if the material of the barrier protective layer 104 is an organic material, the barrier protective layer 104 can be reused as an organic protective layer 110. Referring to Figure 20, if the material of the barrier protective layer 104 is an inorganic material, then the barrier protective layer 104 can be located between the organic protective layer 110 and the black matrix 109.

[0183] Figure 21 is a partial cross-sectional schematic diagram of the display area of ​​another display panel provided in an embodiment of this application. Referring to Figure 21, the grayscale color filter 103 is located on the side of the touch buffer layer 1084 near the substrate 101, and the touch buffer layer 1084 is reused as a barrier protective layer 104. Optionally, the grayscale color filter 103 may be located between the touch buffer layer 1084 and the second inorganic encapsulation layer 1063 of the encapsulation film layer 106. In this case, during the fabrication of the display panel, after the encapsulation film layer 106 is prepared, a grayscale color film 103 is formed on one side of the second inorganic encapsulation layer 1063 using a grayscale color film 103 material; after the grayscale color film 103 is prepared, a touch buffer layer 1084 (barrier protection layer 104), a first touch wiring layer 1081, a touch insulating layer 1082, a second touch wiring layer 1083, a black matrix 109, and an organic protective layer (COC layer) 110 are sequentially formed on the side of the grayscale color film 103 away from the substrate 101.

[0184] Figure 22 is a partial cross-sectional schematic diagram of the display area of ​​another display panel provided in an embodiment of this application. Referring to Figure 22, the grayscale color filter 103 is located between the first inorganic encapsulation layer 1061 and the second inorganic encapsulation layer 1063, and the grayscale color filter 103 can be reused as an organic encapsulation layer 1062. In this case, the second inorganic encapsulation layer 1063 can protect the grayscale color filter 103, that is, the second inorganic encapsulation layer 1063 can be reused as a barrier protective layer 104. During the fabrication of the display panel 100, after the first inorganic encapsulation layer 1061 of the encapsulation film layer 106 is fabricated, a grayscale color filter 103 is formed on one side of the first inorganic encapsulation layer 1061 using grayscale color filter 103 material. After the grayscale color filter 103 is fabricated, a second inorganic encapsulation layer 1063 (barrier protection layer 104), a touch buffer layer 1084, a first touch wiring layer 1081, a touch insulating layer 1082, a second touch wiring layer 1083, a black matrix 109, and an organic protective layer (COC layer) 110 are formed sequentially on the side of the grayscale color filter 103 away from the substrate 101.

[0185] In this embodiment, the design of the grayscale color filter 103 in the above-mentioned Figures 17 to 22 can refer to the design schemes in Figures 5 to 12 above, and will not be described again in this embodiment.

[0186] In order to demonstrate the beneficial effects of the solutions in the embodiments of this application, the embodiments of this application experimentally verify the solutions of related technologies, the solutions where the material of the barrier protective layer is an inorganic material, and the solutions where the material of the barrier protective layer is an organic material.

[0187] Figure 23 shows the test curve of the display panel in the relevant technical solution after 100 hours in an environment with a temperature of 85℃ and a humidity of 85%. As can be seen from Figure 23, the reflectivity of the display panel in the relevant technical solution differs significantly before and after the test in the wavelength range of 480nm to 530nm. Furthermore, the calculated color shift ΔEab in the visible light band is 4.3, indicating that the grayscale film material of the display panel in the relevant technical solution will fade, leading to a change in the hue of the display panel and resulting in poor reliability.

[0188] Figure 24 is a test curve of 100 hours under an environment of 85°C and 85% humidity when the barrier protective layer material in the display panel provided in this application is an inorganic material. As can be seen from Figure 24, the reflectivity difference before and after the test is relatively small across any wavelength range. Furthermore, the color shift ΔEab in the visible light band is calculated to be 0.8. This ensures that the grayscale color film material of the display panel in this application embodiment is not prone to fading, avoids significant changes in the hue of the display panel, and improves the reliability of the display panel.

[0189] Figure 25 is a test curve of 100 hours under an environment of 85°C and 85% humidity when the material of the barrier protective layer in the display panel provided in this application embodiment is an organic material. It can be seen that the reflectivity difference before and after the test is relatively small within any wavelength range. Furthermore, the color shift ΔEab in the visible light band is calculated to be 1.5. This ensures that the grayscale color film material of the display panel in this application embodiment is not prone to fading, avoids significant changes in the hue of the display panel, and improves the reliability of the display panel.

[0190] In this embodiment of the application, referring to FIG26, the pixel unit 102 may include a light-emitting device layer 1021 and a pixel circuit layer 1022. The light-emitting device layer 1021 may include a plurality of light-emitting pixels 10211, and the pixel circuit layer 1022 may include a plurality of light-emitting circuits 10221 corresponding to the plurality of light-emitting pixels 10211. Each light-emitting circuit 10221 may be connected to a corresponding light-emitting pixel 10211 to provide a driving signal to the corresponding light-emitting pixel 10211.

[0191] Optionally, each light-emitting circuit 10221 may include multiple thin-film transistors (TFTs) and at least one storage capacitor Cst. The multiple thin-film transistors and at least one storage capacitor Cst are interconnected to provide driving signals for the light-emitting pixel 10211.

[0192] Referring to Figure 26, the pixel circuit layer 1022 of the display panel 100 includes a buffer layer n1, an active layer n2, a first gate insulator (GI1) n3, a first gate layer (gate1) n4, a second gate insulator (GI2) n5, a second gate layer (gate2) n6, an inter-level dielectric (ILD) n7, a first source-drain layer (SD1) n8, a passivation layer (PVX) n9, a first planarization layer (PLN1) n10, a second source-drain layer (SD2) n11, and a second planarization layer (PLN2) n12, which are stacked sequentially along the direction away from the substrate 101.

[0193] The active layer n2 can be a polycrystalline silicon (P-Si) layer. Active layer n2 includes multiple active patterns of thin-film transistors, each active pattern including a source region and a drain region. The first gate layer n4 includes multiple first gate patterns and multiple second gate patterns. The first gate patterns can be the gates of thin-film transistors, and the second gate patterns can be the first plates of the storage capacitor Cst. The second gate layer n6 includes multiple third gate patterns, each third gate pattern being the second plate of the storage capacitor Cst.

[0194] The first source-drain layer n8 includes the source and drain of the thin-film transistor. The source is connected through vias in the interlayer dielectric layer n7, the second gate insulating layer n5, and the first gate insulating layer n3, as well as the source region of the active pattern. The drain is connected through vias in the interlayer dielectric layer n7, the second gate insulating layer n5, and the first gate insulating layer n3, as well as the drain region of the active pattern.

[0195] The second source-drain layer n11 includes a first connection pattern, which is connected to the drain of the thin-film transistor through a via in the first planarization layer n10. The third source-drain layer includes a second connection pattern, which is connected to the first connection pattern through a via in the second planarization layer n12. The second connection pattern is also used to connect the light-emitting pixel 10211.

[0196] Referring to Figure 26, the light-emitting device layer 1021 includes an anode layer a1, a pixel definition layer (PDL) a2, an emitting functional layer (EL) a3, and a cathode layer a4. The anode layer a1, the emitting functional layer a3, and the cathode layer a4 can constitute multiple light-emitting pixels 10211.

[0197] The anode layer a1 includes multiple anode patterns a11, which can be connected to a second connecting pattern. The pixel defining layer a2 has multiple cutout areas, each of which can be used to expose at least a portion of an anode pattern a11.

[0198] The light-emitting functional layer a3 may include multiple light-emitting patterns a31, which can be connected to the anode pattern a11 through a cutout area. The cathode layer a4 is connected to the light-emitting patterns of multiple light-emitting pixels 10211.

[0199] Each light-emitting pixel 10211 may include an anode pattern a11 located in the anode layer a1 (the anode pattern serves as the anode of the light-emitting pixel), a light-emitting pattern a31 located in the light-emitting functional layer a3 (the light-emitting pattern serves as the light-emitting functional layer of the light-emitting pixel), and a cathode layer. The cathode layers of multiple light-emitting pixels 10211 may be a shared film layer, that is, the cathode layer a4 may serve as the cathode of each light-emitting pixel 10211.

[0200] In this embodiment of the application, the plurality of light-emitting pixels 10211 may include red light-emitting pixels (red, R), green light-emitting pixels (green, G), and blue light-emitting pixels (blue, B). The red light-emitting pixel R can be used to emit red light, the green light-emitting pixel G can be used to emit green light, and the blue light-emitting pixel B can be used to emit blue light.

[0201] Optionally, the light-emitting functional layer a3 may include: an electron functional layer, a hole functional layer, and a light-emitting layer. The electron functional layer includes an electron injection layer (EIL), an electron transport layer (ETL), and an electron blocking layer (EBL), etc. The hole functional layer includes a hole injection layer (HIL), a hole transport layer (HTL), and a hole blocking layer (HBL), etc. The light-emitting layer includes multiple light-emitting patterns a31, including red light-emitting material patterns, green light-emitting material patterns, and blue light-emitting material patterns.

[0202] When the luminous pattern a31 in luminous pixel 10211 includes a red luminous material pattern, luminous pixel 10211 can be a red luminous pixel R. When the luminous pattern a31 in luminous pixel 10211 includes a green luminous material pattern, luminous pixel 10211 can be a green luminous pixel G. When the luminous pattern a31 in luminous pixel 10211 includes a blue luminous material pattern, luminous pixel 10211 can be a blue luminous pixel B.

[0203] Optionally, in addition to the light-emitting pattern in the light-emitting layer, the light-emitting functional layer a3 may include an electronic functional layer and a hole functional layer that are common film layers of multiple light-emitting pixels 10211. For example, the label a3 near the display area 101a in Figures 5 to 12 can be used to represent a common film layer of multiple light-emitting pixels 10211, that is, it can represent an electronic functional layer and a hole functional layer.

[0204] It should be noted that the film layers of the pixel circuit layer 1022 included in the display panel 100 shown in Figure 26 are only schematic. In practice, for the convenience of layout design, the pixel circuit layer 1022 may also include a third source / drain layer SD3 and a third planarization layer PLN3 located on the side of the second planarization layer n12 away from the substrate 101. This application embodiment does not specifically limit the film layers of the pixel circuit layer 1022.

[0205] Optionally, referring to FIG27, the crack barrier dam 109 may include at least one protruding structure formed by an inorganic material layer in the light-emitting device layer 1021 on the substrate 101. FIG27 illustrates three crack barrier dams 109.

[0206] For example, the inorganic material layer constituting the protrusion structure in the crack barrier dam 109 may include a buffer layer n1, a first gate insulating layer n3, a second gate insulating layer n5, an interlayer dielectric layer n7, and a passivation layer n9. Furthermore, in order to planarize the side of the crack barrier dam 109 away from the substrate 101, at least one layer of organic material may be designed on this side. For example, referring to FIG. 27, a first planarization layer n10, a second planarization layer (PLN2) n12, a third planarization layer (PLN3) n13, and a pixel defining layer a2 are provided on the side of the crack barrier dam 109 away from the substrate 101.

[0207] In this embodiment of the application, referring to Figures 5 to 12, the first barrier dam 1071 of the barrier structure 107 may include a first flat pattern e1 and a first pixel delimiting pattern e2 disposed in a direction away from the substrate 101. The second barrier dam 1072 of the barrier structure 107 may include a second flat pattern r1, a third flat pattern r2 and a second pixel delimiting pattern r3 disposed in a direction away from the substrate 101.

[0208] The first flat pattern e1 and the third flat pattern r2 may be made of the same material, and the first pixel-defining pattern e2 and the second pixel-defining pattern r3 may be made of the same material. For example, the first flat pattern e1 and the third flat pattern r2 may be made of the same material and produced by the same patterning process. The first pixel-defining pattern e2 and the second pixel-defining pattern r3 may be made of the same material and produced by the same patterning process.

[0209] In this embodiment of the application, the second flat pattern r1 may belong to the first flat layer, the first flat pattern e1 and the third flat pattern r2 may belong to the second flat layer, and the first pixel boundary pattern e2 and the second pixel boundary pattern r3 may belong to the pixel boundary layer.

[0210] Optionally, the materials used to fabricate the first planarization layer, the second planarization layer, and the pixel defining layer may include organic materials such as resin. This application does not limit this aspect.

[0211] In this embodiment of the application, referring to Figures 5 to 12, the display panel 100 further includes a first power line VSS and a second power line VDD. The first power line VSS can be connected to the cathode layer a4 to provide a first power signal (VSS signal) to the cathode layer a4. The second power line VDD can be connected to the anode pattern a11 of the anode layer a1 through pixel circuitry to provide a second power signal (VDD signal) to the anode pattern a11. The pixel unit 102 can emit light under the combined drive of the first power signal (VSS signal) and the second power signal (VDD signal).

[0212] Optionally, both the first power line VSS and the second power line VDD can be introduced from the first region 101b1. For example, Figures 5, 7, 9, and 11 illustrate the first power line VSS and the second power line VDD. It should be noted that the first power line VSS and the second power line VDD are separated by a distance in the second direction Y. Figures 5, 7, 9, and 11 are shown on the same cross-sectional view for ease of illustration.

[0213] As shown in Figures 5, 7, 9, and 11, the first power line VSS can be introduced from the second source-drain layer (SD2) n11, and then introduced to the first source-drain layer (SD1) n8 through the vias of the first planarization layer (PLN1) n10. Referring to Figures 6, 8, 10, and 12, the first power line VSS introduced into the first source-drain layer (SD1) n8 can be connected to the pattern of the second source-drain layer (SD2) n11 through the vias of the first planarization layer (PLN1) n10. The pattern of the second source-drain layer (SD2) n11 (used for VSS signal transfer) is then connected to the pattern of the anode layer a1 (used for VSS signal transfer, not the anode pattern) through the vias of the second planarization layer (PLN2) n12. The pattern of the anode layer a1 is then connected to the cathode layer a4. This allows the first power signal of the first power line VSS to be transmitted to the cathode layer a4.

[0214] Optionally, the second power line VDD can also be introduced from the second source-drain layer (SD2) n11, and then introduced to the first source-drain layer (SD1) n8 through the via of the first planarization layer (PLN1) n10. As can be seen from Figures 5, 7, 9 and 11, the second power line VDD can be a double-layer power line of the first source-drain layer (SD1) n8 and the second source-drain layer (SD2) n11.

[0215] In this embodiment of the application, referring to Figures 6, 8, 10, and 12, the display panel 100 further includes a gate row driving circuit (gate GOA) and an emissive row driving circuit (EM GOA). Typically, the gate row driving circuit (gate GOA) and the emissive row driving circuit (EM GOA) can be disposed in the third region 101b3 and the fourth region 101b4. Therefore, Figures 6, 8, 10, and 12 can be partial cross-sectional views of the display panel in the third region 101b3 or the fourth region 101b4.

[0216] Optionally, Figures 6, 8, 10 and 12 only illustrate simple patterns of the gate row drive circuit (gate GOA) and the light emission row drive circuit (EM GOA) located in the first source-drain layer (SD1) n8 and the second source-drain layer (SD2) n11, and do not represent the actual structure of the gate row drive circuit (gate GOA) and the light emission row drive circuit (EM GOA).

[0217] Optionally, referring to Figures 6, 8, 10, and 12, the gate row driving circuit (gate GOA) can be located on the side of the light-emitting row driving circuit (EM GOA) closer to the display area 101a. Of course, the gate row driving circuit (gate GOA) can also be located on the side of the light-emitting row driving circuit (EM GOA) farther from the display area 101a. This application embodiment does not specifically limit the location of the gate row driving circuit (gate GOA) and the light-emitting row driving circuit (EM GOA).

[0218] Optionally, in Figures 6, 8, 10, and 12, in the gate row drive circuit (gate GOA), the pattern of the first source-drain layer (SD1) n8 is connected to the pattern of the second source-drain layer (SD2) n11 through the via of the first planarization layer (PLN1) n10. One of the two sets of structures can be a global clock signal line (GCK), and the other set can be a global enable signal line (GCB).

[0219] In summary, this application provides a display panel including a substrate, multiple pixel units, a grayscale color filter, and a barrier protective layer. By providing a barrier protective layer on the side of the grayscale color filter away from the substrate, the barrier protective layer can protect the grayscale color filter, preventing it from being exposed and thus preventing it from absorbing water and oxygen and fading, thereby improving the yield of the display panel.

[0220] Figure 28 is a schematic diagram of a display device provided in an embodiment of this application. Referring to Figure 28, the display device includes a power supply component 200 and a display panel 100 as provided in the above embodiment. The power supply component 200 is connected to the display panel 100 and is used to supply power to the display panel 100.

[0221] Optionally, the display device can be an organic light-emitting diode (OLED) display device. The display device can be any suitable display device, including but not limited to mobile phones, tablets, televisions, monitors, laptops, digital photo frames, navigators, and e-books, as well as any product or component with display functionality.

[0222] Since the display device can have essentially the same technical effects as the display panel described in the previous embodiments, for the sake of brevity, the technical effects of the display device will not be described again here.

[0223] The terminology used in the embodiments section of this application is for explaining the embodiments of this application only and is not intended to limit this application. Unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains.

[0224] The Description of Embodiments section of this application describes several embodiments; however, this description is exemplary and not restrictive, and it will be apparent to those skilled in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with, or may replace, any feature or element of any other embodiment.

[0225] This application includes and contemplates combinations of features and elements known to those skilled in the art. The embodiments, features, and elements disclosed in this application may also be combined with any conventional features or elements to form a unique inventive scheme as defined by the claims. Any feature or element of any embodiment may also be combined with features or elements from other inventive schemes to form another unique inventive scheme as defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in this application may be implemented individually or in any suitable combination. Therefore, the embodiments are not limited except by the limitations imposed by the appended claims and their equivalents. Furthermore, various modifications and changes may be made within the scope of the appended claims.

[0226] Furthermore, in describing representative embodiments, the specification may have presented methods and / or processes as a specific sequence of steps. However, the method or process should not be limited to the specific order of steps described herein, to the extent that it does not depend on such a specific order. As will be understood by those skilled in the art, other sequences of steps are also possible. Therefore, the specific order of steps set forth in the specification should not be construed as a limitation of the claims. Moreover, the claims concerning the method and / or process should not be limited to the steps performed in the written order, and those skilled in the art will readily understand that these orders can be varied and still remain within the spirit and scope of the embodiments of this application.

[0227] In the accompanying drawings, the size of one or more constituent elements, the thickness of layers, or areas are sometimes exaggerated for clarity. Furthermore, the drawings schematically illustrate ideal examples, and this application is not limited to the shapes or numerical values ​​shown in the drawings.

[0228] The ordinal numbers "first," "second," and "third" used in this specification are for the purpose of avoiding confusion among the constituent elements, not for limiting the quantity. The term "multiple" in this application refers to two or more quantities.

[0229] The thickness range of the film layer in this specification is A to B, which means that the thickness is between A and B, including the two endpoints of A and B.

[0230] In this specification, for convenience, terms such as "middle," "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are used to indicate orientation or positional relationships in conjunction with the accompanying drawings. This is solely for the purpose of facilitating the description and simplification, and does not imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application. The positional relationships of the constituent elements may be appropriately varied depending on the orientation of the described constituent elements. Therefore, the use of terms not limited to those described in the specification may be appropriately replaced as needed.

[0231] In this specification, a transistor is a device that includes at least three terminals: a gate electrode, a drain electrode (drain terminal, drain region, or drain), and a source electrode (source terminal, source region, or source). A transistor has a channel region between the drain and source electrodes, and current can flow through the drain electrode, the channel region, and the source electrode. Note that in this specification, the channel region refers to the region through which current primarily flows.

[0232] In this specification, the first terminal of a transistor can be the drain electrode and the second terminal of a transistor can be the source electrode, or vice versa. In cases where transistors with opposite polarities are used or where the current direction changes during circuit operation, the functions of the "source electrode" and "drain electrode" are sometimes interchanged. Therefore, in this specification, the "source electrode" and "drain electrode" can be interchanged, and the "source terminal" and "drain terminal" can be interchanged.

[0233] In this specification, unless otherwise expressly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection, an indirect connection via an intermediate component, or a connection within two components. Those skilled in the art will understand the meaning of the above terms in this application according to the specific circumstances.

[0234] In this specification, the terms "film" and "layer" may be interchanged. For example, "conductive layer" may sometimes be replaced with "conductive film." Similarly, "insulating film" may sometimes be replaced with "insulating layer."

[0235] In this application, "thickness" and "height" refer to the vertical distance between the surface of the film layer away from the substrate and the surface of the film layer closer to the substrate.

[0236] In this application, "about" means a value that is not strictly limited and allows for process and measurement errors.

[0237] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A display panel, characterized in that, The display panel includes: A substrate having a display area and a peripheral area surrounding the display area; Multiple pixel units, the multiple pixel units being located in the display area on the substrate; A grayscale color filter is located on the side of the plurality of pixel units away from the substrate, and light emitted by the pixel units is emitted after passing through the grayscale color filter; And a barrier protective layer, the barrier protective layer being located on the side of the grayscale color filter away from the substrate, the orthogonal projection of the barrier protective layer on the substrate covering the orthogonal projection of the grayscale color filter on the substrate.

2. The display panel according to claim 1, characterized in that, The orthographic projection of the boundary of the barrier protective layer on the substrate is further away from the display area than the orthographic projection of the boundary of the grayscale color filter on the substrate.

3. The display panel according to claim 2, characterized in that, The distance between the orthographic projection of the boundary of the barrier protective layer on the substrate and the orthographic projection of the boundary of the grayscale color filter on the substrate is greater than or equal to 0.86 micrometers.

4. The display panel according to any one of claims 1 to 3, characterized in that, The display panel further includes: an encapsulation film layer located on the side of the plurality of pixel units away from the substrate, the encapsulation film layer being located in the display area and the peripheral area, and the encapsulation film layer covering the plurality of pixel units; The orthographic projection of the boundary of the encapsulation film layer on the substrate is further away from the display area than the orthographic projection of the boundary of the grayscale color filter on the substrate.

5. The display panel according to claim 4, characterized in that, The orthographic projection of the boundary of the barrier protective layer on the substrate lies between the orthographic projection of the boundary of the grayscale color film on the substrate and the orthographic projection of the boundary of the encapsulation film layer on the substrate.

6. The display panel according to claim 5, characterized in that, The barrier protective layer is made of inorganic or organic materials.

7. The display panel according to claim 4, characterized in that, The orthographic projection of the boundary of the barrier protective layer on the substrate is further away from the display area than the orthographic projection of the boundary of the encapsulation film layer on the substrate.

8. The display panel according to claim 7, characterized in that, The material of the barrier protective layer is an organic material.

9. The display panel according to claim 4, characterized in that, The display panel further includes: a blocking structure located in the peripheral area and surrounding the display area, wherein the orthographic projection of the blocking structure on the substrate is located within the orthographic projection of the encapsulation film layer on the substrate; The boundary of the barrier layer is projected further away from the display area on the substrate than the projection of the blocking structure on the substrate.

10. The display panel according to claim 9, characterized in that, The orthographic projection of the boundary of the grayscale color filter on the substrate is located on the side of the orthographic projection of the blocking structure on the substrate closer to the display area.

11. The display panel according to claim 9, characterized in that, The blocking structure includes a first blocking dam and a second blocking dam arranged in a direction away from the display area; The orthographic projection of the boundary of the barrier layer on the substrate is further away from the display area than the orthographic projection of the first barrier dam on the substrate.

12. The display panel according to claim 11, characterized in that, The orthographic projection of the boundary of the grayscale color filter on the substrate is flush with the orthographic projection of the first blocking dam on the substrate, or the orthographic projection of the boundary of the grayscale color filter on the substrate is located on the side of the orthographic projection of the first blocking dam on the substrate closer to the display area.

13. The display panel according to claim 9, characterized in that, The blocking structure includes a first blocking dam and a second blocking dam arranged in a direction away from the display area; The orthographic projection of the boundary of the barrier protective layer on the substrate is further away from the display area than the orthographic projection of the second barrier dam on the substrate.

14. The display panel according to claim 13, characterized in that, The orthographic projection of the boundary of the grayscale color filter on the substrate is flush with the orthographic projection of the second blocking dam on the substrate, or the orthographic projection of the boundary of the grayscale color filter on the substrate is located on the side of the orthographic projection of the second blocking dam on the substrate closer to the display area.

15. The display panel according to any one of claims 9 to 14, characterized in that, The orthographic projection of the boundary of the barrier protective layer on the substrate is flush with or closer to the orthographic projection of the boundary of the encapsulation film layer on the substrate, relative to the orthographic projection of the boundary of the encapsulation film layer on the substrate, in the display area.

16. The display panel according to claim 15, characterized in that, The barrier protective layer is made of inorganic or organic materials.

17. The display panel according to any one of claims 9 to 14, characterized in that, The orthographic projection of the boundary of the barrier protective layer on the substrate is further away from the display area than the orthographic projection of the boundary of the encapsulation film layer on the substrate.

18. The display panel according to claim 17, characterized in that, The material of the barrier protective layer is an organic material.

19. The display panel according to any one of claims 1 to 18, characterized in that, The surrounding area includes a first area, a second area, a third area, and a fourth area; The first region and the second region are located on both sides of the display area in the first direction, and the third region and the fourth region are located on both sides of the display area in the second direction; the first region includes a bending area and a binding area arranged in a direction away from the display area; When the material of the barrier protective layer is an inorganic material, the orthographic projection of the barrier protective layer on the substrate is not located in the bending region.

20. The display panel according to any one of claims 1 to 18, characterized in that, The display panel also includes: a touch component and a black matrix; The touch component is located on the side of the plurality of pixel units away from the substrate. The touch component includes a first touch wiring layer, a touch insulating layer, and a second touch wiring layer stacked along the direction away from the substrate. Both the first touch wiring layer and the second touch wiring layer include touch electrode lines. The orthographic projection of the touch electrode lines on the substrate does not overlap with the light-emitting area of ​​the pixel unit. The black matrix is ​​located on the side of the plurality of pixel units away from the substrate. The black matrix has a plurality of openings corresponding to the plurality of pixel units, and each opening is used to expose the light-emitting area of ​​a corresponding pixel unit.

21. The display panel according to claim 20, characterized in that, The black matrix is ​​located on the side of the touch component away from the substrate. The grayscale color filter is located on the side of the black matrix away from the substrate and is also located within a plurality of openings in the black matrix; the orthographic projection of the grayscale color filter on the substrate covers the orthographic projection of the black matrix on the substrate.

22. The display panel according to claim 20, characterized in that, The grayscale color filter is located between the first touch trace layer and the second touch trace layer, and the grayscale color filter is reused as the touch insulating layer.

23. The display panel according to claim 20, characterized in that, The black matrix is ​​located on the side of the touch component away from the substrate. The barrier protective layer is located between the second touch wiring layer and the grayscale color filter; or... The barrier protection layer is located between the second touch trace layer and the black matrix; or... The barrier protective layer is located on the side of the black matrix away from the substrate and is also located within multiple openings of the black matrix.

24. The display panel according to any one of claims 21 to 23, characterized in that, The black matrix is ​​located on the side of the touch component away from the substrate; the display panel further includes an organic protective layer, which is located on the side of the black matrix away from the substrate.

25. The display panel according to claim 20, characterized in that, The touch component further includes: a touch buffer layer located on the side of the first touch trace layer near the substrate; The grayscale color filter is located on the side of the touch buffer layer closest to the substrate, and the touch buffer layer is reused as the barrier protection layer.

26. The display panel according to any one of claims 1 to 18, characterized in that, The display panel further includes: an encapsulation film layer located on the side of the plurality of pixel units away from the substrate, comprising: a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer stacked along a direction away from the substrate; The orthographic projection of the boundary of the organic encapsulation layer on the substrate is closer to the display area than the orthographic projection of the boundary of the first inorganic encapsulation layer on the substrate. The orthographic projection of the boundary of the organic encapsulation layer on the substrate is closer to the display area than the orthographic projection of the boundary of the second inorganic encapsulation layer on the substrate.

27. The display panel according to claim 26, characterized in that, The grayscale color filter is located between the first inorganic encapsulation layer and the second inorganic encapsulation layer, and the grayscale color filter is reused as the organic encapsulation layer.

28. A display device, characterized in that, The display device includes: a power supply component and a display panel as described in any one of claims 1 to 27; The power supply component is connected to the display panel, and the power supply component is used to supply power to the display panel.

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