Display panel and display device

Abstract

This application provides a display panel and a display device. The display panel has a first through-hole provided in at least one of a second refractive index layer, a first planarization layer, and a second planarization layer. The first through-hole is located in a functional area and a transition area, and the boundary of the first through-hole is located in the transition area. This reduces the internal stress between adjacent film layers, reduces the internal stress transmitted to the lower film layer, reduces the risk of peeling between the light-emitting material layer and the common electrode layer, thereby reducing the risk of water and oxygen intrusion, improving the encapsulation effect, and improving the reliability of the display panel.

Description

Technical Field

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

[0002] OLED (Organic Light-Emitting Diode) displays are widely used due to their self-emissive nature and flexibility. To achieve privacy protection, existing OLED displays use both privacy-protecting and non-privacy-protecting pixels. Privacy protection is achieved by blocking light from the privacy-protecting pixels over a wide viewing angle, combined with different display modes. However, in practical use, issues such as film peeling have been found in the display panel, allowing water and oxygen to enter through the peeling points, leading to encapsulation failure.

[0003] Therefore, existing OLED display devices suffer from the technical problem of film peeling, which leads to encapsulation failure. Summary of the Invention

[0004] This application provides a display panel and a display device to improve the technical problem of film peeling leading to encapsulation failure in existing OLED display devices.

[0005] To achieve the above objectives, according to a first aspect of this application, a display panel is provided, the display panel including a display area, a functional area, and a transition area, the transition area being disposed between the display area and the functional area; the display panel includes a substrate and a dimming functional layer, a first light-shielding layer, a first planarization layer, a second light-shielding layer, and a second planarization layer disposed on one side of the substrate, the dimming functional layer including a first refractive index layer and a second refractive index layer, the first refractive index layer being disposed between the substrate and the second refractive index layer, the refractive index of the first refractive index layer being less than the refractive index of the second refractive index layer; In this embodiment, at least one of the second refractive index layer, the first planarization layer, and the second planarization layer is provided with a first through hole, the first through hole is disposed in the functional area and the transition area, and the boundary of the first through hole is located within the transition area.

[0006] According to a second aspect of this application, a display device is provided, the display device including a display panel as described in any of the above embodiments.

[0007] This application provides a display panel and a display device. The display panel has a first through-hole provided in at least one of a second refractive index layer, a first planarization layer, and a second planarization layer. The first through-hole is located in a functional area and a transition area, and the boundary of the first through-hole is located in the transition area. This reduces the internal stress between adjacent film layers, reduces the internal stress transmitted to the lower film layer, reduces the risk of peeling between the light-emitting material layer and the common electrode layer, thereby reducing the risk of water and oxygen intrusion, improving the encapsulation effect, and improving the reliability of the display panel.

[0008] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0009] 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 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.

[0010] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0011] Figure 1 This is a plan view of the display panel provided in an embodiment of this application.

[0012] Figure 2 This is a pixel layout diagram of a display panel provided in an embodiment of this application.

[0013] Figure 3 for Figure 1 A schematic diagram of the first type of A1-A2 cross section of the display panel.

[0014] Figure 4 This is a cross-sectional schematic diagram of some film layers in the display area of ​​the display panel provided in an embodiment of this application.

[0015] Figure 5 This is a first cross-sectional schematic diagram of a display panel provided in an embodiment of this application.

[0016] Figure 6 This is a second cross-sectional schematic diagram of the display panel provided in an embodiment of this application.

[0017] Figure 7 This is a third cross-sectional schematic diagram of the display panel provided in an embodiment of this application.

[0018] Figure 8 This is a plan view of the first through hole, the second through hole, and the third through hole of the display panel provided in the embodiments of this application.

[0019] Figure 9 This is a first cross-sectional schematic diagram of the display area of ​​the display panel provided in an embodiment of this application.

[0020] Figure 10 This is a second cross-sectional schematic diagram of the display area of ​​the display panel provided in an embodiment of this application.

[0021] Figure 11 This is a second A1-A2 cross-sectional schematic diagram of the display panel provided in an embodiment of this application. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0023] This application addresses the technical problem of film peeling leading to encapsulation failure in existing OLED display devices by providing a display panel and a display device to improve the aforementioned technical problem.

[0024] like Figure 1 As shown, this application embodiment provides a display panel 1, which includes a display area 101, a non-display area 102, a functional area 103, and a transition area 104. Sub-pixels can be set in the display area 101, gate driving circuits, bonding terminals, and other structures can be set in the non-display area 102, functional elements can be set in the functional area 103, and the transition area 104 can serve as an encapsulation area to prevent water and oxygen intrusion, and can also serve as a winding area to realize the connection of traces on both sides or around the functional area 103.

[0025] Specifically, Figure 1 The example described uses a non-display area 102 surrounding a display area 101, but the embodiments of this application are not limited to this. The non-display area 102 can be disposed on one side, two sides, or three sides of the display area 101. In addition, when the display panel in the embodiments of this application adopts a full-screen display, the non-display area 102 can be bent or folded to the back of the display panel 1.

[0026] Specifically, the non-display area 102 may include a left border area, a right border area, an upper border area, and a lower border area respectively disposed on the left, right, upper, and lower sides of the display area 101. Gate driving circuits may be disposed in the left and right border areas to input signals, and bonding terminals may be disposed in the lower border area to bond the driving chip.

[0027] Specifically, the function area 103 may not be displayed. The functional elements set in the function area 103 include one or more of the following: camera, ambient light detection element, temperature detection element, fingerprint recognition element, touch element, infrared sensing element, and laser sensing element, so as to realize functions such as under-screen camera, sensing, recognition, and detection.

[0028] Specifically, such as Figure 1 As shown, the display area 101 can be set around the transition area 104, and the transition area 104 can be set around the function area 103. However, the embodiments of this application are not limited to this. For example, the function area 103 and the transition area 104 can be set in the area where the display area 101 and the non-display area 102 meet, so that the display area 101 is not set around the transition area 104, but is set around some areas of the transition area 104.

[0029] Specifically, such as Figure 1 As shown, Figure 1 The example given is that the functional area 103 is circular and the transition area 104 is annular. However, the embodiments of this application are not limited to this. The functional area 103 can be other shapes, such as square, rectangle, polygon, ellipse, teardrop, or other irregular shapes. Correspondingly, the transition area 104 can be other shapes, which will not be elaborated here.

[0030] Specifically, such as Figure 2 As shown, the display area 101 is provided with multiple non-peeping pixels 11 and peeping pixels 12. The non-peeping pixels 11 may include a first non-peeping sub-pixel 111, a second non-peeping pixel 112 and a third non-peeping pixel 113 with different light emission colors. The peeping pixels 12 may include a first peeping sub-pixel 121, a second peeping pixel 122 and a third peeping pixel 123 with different light emission colors.

[0031] Specifically, the emission color of one of the first non-peeping sub-pixels 111, the second non-peeping sub-pixels 112, and the third non-peeping sub-pixels 113 is one of red, green, and blue; the emission color of another of the first non-peeping sub-pixels 111, the second non-peeping sub-pixels 112, and the third non-peeping sub-pixels 113 is one of red, green, and blue; and the emission color of the remaining one of the first non-peeping sub-pixels 111, the second non-peeping sub-pixels 112, and the third non-peeping sub-pixels 113 is the remaining one of red, green, and blue. For example, the emission colors of the first non-peeping sub-pixels 111, the second non-peeping sub-pixels 112, and the third non-peeping sub-pixels 113 are red, green, or blue, respectively. Of course, the emission colors of the first non-peeping sub-pixels 111, the second non-peeping sub-pixels 112, and the third non-peeping sub-pixels 113 can be other combinations, which will not be elaborated here.

[0032] Specifically, one of the first privacy pixel 121, the second privacy pixel 122, and the third privacy pixel 123 emits light in a color that is one of red, green, and blue; another of the first privacy pixel 121, the second privacy pixel 122, and the third privacy pixel 123 emits light in a color that is one of red, green, and blue; and the remaining one of the first privacy pixel 121, the second privacy pixel 122, and the third privacy pixel 123 emits light in a color that is one of red, green, and blue. For example, the first privacy pixel 121, the second privacy pixel 122, and the third privacy pixel 123 emit light in a color that is red, green, or blue, respectively. Of course, the light emission colors of the first privacy pixel 121, the second privacy pixel 122, and the third privacy pixel 123 can be other combinations, which will not be elaborated here.

[0033] Specifically, the emission colors of the first non-peeping sub-pixel 111, the second non-peeping sub-pixel 112, and the third non-peeping sub-pixel 113 can be the same as those of the first privacy sub-pixel 121, the second privacy sub-pixel 122, and the third privacy sub-pixel 123, respectively.

[0034] Specifically, by making the light emission colors of the first non-peeping sub-pixel 111, the second non-peeping sub-pixel 112, and the third non-peeping sub-pixel 113 different, the light emission colors of the light-emitting parts corresponding to each non-peeping sub-pixel can be different. Similarly, by making the light emission colors of the first privacy sub-pixel 121, the second privacy sub-pixel 122, and the third privacy sub-pixel 123 different, the light emission colors of the light-emitting parts corresponding to each privacy sub-pixel can be different.

[0035] Specifically, the arrangement of sub-pixels in non-spy pixel 11 and spy pixel 12 can be realRGB, SPR or other arrangements; this application embodiment does not limit this, for example, this application embodiment uses realRGB arrangement for all sub-pixels in non-spy pixel 11 and spy pixel 12 as an example.

[0036] Specifically, the arrangement of the non-spy pixel 11 and the spy pixel 12 is not limited in this embodiment. For example, the non-spy pixel 11 and the spy pixel 12 can be alternately arranged along the first direction X and the second direction Y, or the non-spy pixel 11 can be arranged in the same column and the spy pixel 12 can be arranged in the same column, or the non-spy pixel and the spy pixel 12 can be alternately arranged along the first direction X. In this embodiment, the non-spy pixel 11 and the spy pixel 12 can be alternately arranged along the first direction X and the second direction Y for illustration.

[0037] Specifically, the first non-peeping pixel 111, the second non-peeping pixel 112, the first peeping pixel 121, and the second peeping pixel 122 are arranged in the same column along the second direction Y, while the third non-peeping pixel 113 and the third peeping pixel 123 are arranged in another column.

[0038] Specifically, the privacy protection direction of the display panel in this application embodiment is not limited. The display panel in this application embodiment can achieve omnidirectional privacy protection, three-way privacy protection, and bidirectional privacy protection. For example, the first privacy sub-pixel 121, the second privacy sub-pixel 122, and the third privacy sub-pixel 123 are provided with a first light-shielding part 291a and a second light-shielding part 294a on all four sides, thereby achieving 360-degree omnidirectional privacy protection; or the first privacy sub-pixel 121, the second privacy sub-pixel 122, and the third privacy sub-pixel 123 are provided with a first light-shielding part 291a and a second light-shielding part 294a on both sides, thereby achieving bidirectional privacy protection. In the following embodiment, the first privacy sub-pixel 121, the second privacy sub-pixel 122, and the third privacy sub-pixel 123 are provided with a first light-shielding part 291a and a second light-shielding part 294a on both sides are used as an example for explanation. When the privacy protection direction of the display panel is other privacy protection directions, adaptive designs can be made.

[0039] Furthermore, when implementing a privacy protection method for the display panel, the arrangement of the first light-blocking part 291a and the second light-blocking part 294a can be different. For example, the first privacy sub-pixel 121, the second privacy sub-pixel 122 and the third privacy sub-pixel 123 are all provided with the first light-blocking part 291a and the second light-blocking part 294a. The second light-blocking parts 294a surrounding the first privacy sub-pixel 121, the second privacy sub-pixel 122 and the third privacy sub-pixel 123 can be continuous, or multiple second light-blocking parts 294a surrounding the first privacy sub-pixel 121, the second privacy sub-pixel 122 and the third privacy sub-pixel 123 can be arranged at intervals.

[0040] Specifically, the shape of the privacy pixel can be square, rectangular, rounded rectangle, circular, elliptical, etc. Correspondingly, the shape of the first light-blocking part 291a and the second light-blocking part 294a on the side opposite to the privacy pixel is adapted. For example, the shape of the privacy pixel is circular, and the side of the first light-blocking part 291a and the second light-blocking part 294a near the privacy pixel is arc-shaped. This will not be elaborated further here.

[0041] Specifically, the shape of non-peeping pixels can be square, rectangle, rounded rectangle, circle, ellipse, etc.

[0042] Specifically, such as Figure 2As shown, the privacy pixel 12 and the non-privacy pixel 11 are alternately arranged along the first direction X, and the privacy pixel 12 and the non-privacy pixel 11 are alternately arranged along the second direction. In the second direction Y, neither the privacy pixel 12 nor the non-privacy pixel 11 has a first light-blocking part 291a or a second light-blocking part 294a on either side. In the first direction X, the first privacy sub-pixel 121, the second privacy sub-pixel 122, and the third privacy sub-pixel 123 have a first light-blocking part 291a and a second light-blocking part 294a on either side, thereby limiting the light emission from the privacy sub-pixels at a wide viewing angle and narrowing the light emission angle of the privacy pixel 12.

[0043] In the first direction X, a first light-blocking portion 291a is provided between the first non-peeping sub-pixel 111 and the third non-peeping sub-pixel 113, and a first light-blocking portion 291a is provided between the second non-peeping sub-pixel 112 and the third non-peeping sub-pixel 113. No second light-blocking portion 294a is provided between the first non-peeping sub-pixel 111 and the third non-peeping sub-pixel 113, and no second light-blocking portion 294a is provided between the second non-peeping sub-pixel 112 and the third non-peeping sub-pixel 113. A second light-blocking portion 294a is provided between the peeping pixel 12 and the non-peeping pixel 11.

[0044] Specifically, such as Figures 3 to 8 As shown, the display panel 1 includes a substrate 21, a driving circuit layer 22, a light-emitting functional layer 25, and an encapsulation layer 26. The driving circuit layer 22 is disposed on one side of the substrate 21, the light-emitting functional layer 25 is disposed on the side of the driving circuit layer 22 away from the substrate 21, and the encapsulation layer 26 is disposed on the side of the light-emitting functional layer 25 away from the driving circuit layer 22.

[0045] Specifically, such as Figures 3 to 8 As shown, the display panel 1 may also include a touch layer 27, which is disposed on the side of the encapsulation layer 26 away from the light-emitting functional layer 25.

[0046] Specifically, such as Figures 3 to 8 As shown, the display panel 1 also includes a dimming function layer 28, which is disposed on the side of the touch layer 27 away from the encapsulation layer 26.

[0047] Specifically, the dimming function layer 28 includes a first refractive index layer 281 and a second refractive index layer 282, wherein the refractive index of the second refractive index layer 282 is greater than the refractive index of the first refractive index layer 281.

[0048] Specifically, the first refractive index layer 281 may include photoresist; in this case, the first refractive index layer 281 can be formed by completely coating the photoresist and then exposing and developing the photoresist.

[0049] Specifically, the first refractive index layer 281 may include acrylic resins such as PMMA, polyacrylic acid, ethylhexyl acrylate, pentafluoropropyl acrylate, polyethylene glycol dimethacrylate, or ethylene glycol dimethacrylate. In some embodiments, the first refractive index layer 281 may further include thermosetting agents and / or photocuring agents such as epoxy resins.

[0050] Specifically, the second refractive index layer 282 may comprise an acrylic organic material or a siloxane organic material. In some embodiments, the second refractive index layer 282 may comprise a polydiarylsiloxane, a methyltrimethoxysilane, or a tetramethoxysilane. In some embodiments, the second refractive index layer 282 may be formed by applying and curing an organic material via an inkjet printing process. In another embodiment, the second refractive index layer 282 may be formed via an evaporation process.

[0051] In some embodiments, metal oxide particles such as ZnO, TiO2, zirconium dioxide (ZrO2), and barium titanate (BaTiO3) can be dispersed in the second refractive index layer 282. In some embodiments, the second refractive index layer 282 can be formed by applying an organic material comprising metal oxide particles via inkjet printing. Therefore, the refractive index of the second refractive index layer 282 can be greater than the refractive index of the first refractive index layer 281.

[0052] Specifically, the refractive index of the first refractive index layer 281 ranges from 1.45 to 1.55, and the distance between the opening of the first refractive index layer 281 and the opening of the pixel definition layer on one side ranges from 0 to 1.5 micrometers. That is, in the first direction and / or the second direction, on one or more sides of the left, right, top, and bottom sides, the boundary of the opening of the first refractive index layer 281 exceeds the boundary of the opening of the pixel definition layer by a maximum of 1.5 micrometers, or the boundary of the opening of the first refractive index layer 281 is located inside the opening of the pixel definition layer, and the boundary of the opening of the first refractive index layer 281 is recessed within the boundary of the opening of the pixel definition layer by a maximum of 1.5 micrometers.

[0053] Specifically, the thickness of the first refractive index layer 281 ranges from 1.5 micrometers to 3.5 micrometers.

[0054] Specifically, the refractive index of the second refractive index layer 282 ranges from 1.6 to 1.8; the thickness of the second refractive index layer 282 ranges from 2.5 micrometers to 5 micrometers.

[0055] Specifically, such as Figures 3 to 8 As shown, the display panel 1 also includes a first light-shielding layer 291, a first flattening layer 290, a second light-shielding layer 294, and a second flattening layer 295 arranged sequentially.

[0056] Specifically, the thickness of the first light-shielding layer 291 ranges from 0.9 micrometers to 1.2 micrometers. Within the non-spy pixel 11, the distance between the boundary of the first light-shielding portion 291a and the boundary of the opening of the pixel definition layer ranges from 3 to 5 micrometers. Within the spy pixel 12, the distance between the boundary of the first light-shielding portion 291a and the opening of the pixel definition layer ranges from 1 to 1.5 micrometers.

[0057] Specifically, the material of the first light-shielding layer 291 may include a light-absorbing material. For example, the first light-shielding layer 291 may include an inorganic black pigment or an organic black pigment. The inorganic black pigment may be carbon black, and the organic black pigment may include at least one of lactam black, dinaphthalene-containing black, and aniline black, but the embodiments of this application are not limited thereto.

[0058] Specifically, the material of the first planarization layer 290 may include organic materials such as acrylic acid, benzocyclobutene (“BCB”) or hexamethyldisiloxane (“HMDSO”).

[0059] Specifically, such as Figures 3 to 8 As shown, the first planarization layer 290 may include a first sublayer 292 and a second sublayer 293. The material of the first sublayer 292 may include organic materials such as acrylic acid, benzocyclobutene (“BCB”), or hexamethyldisiloxane (“HMDSO”); the material of the second sublayer 293 may include organic materials such as acrylic acid, benzocyclobutene (“BCB”), or hexamethyldisiloxane (“HMDSO”).

[0060] Specifically, the thickness of the first planarization layer 290 ranges from 7 micrometers to 9 micrometers; the thickness of the first sublayer 292 ranges from 4 micrometers to 5 micrometers; and the thickness of the second sublayer 293 ranges from 3 micrometers to 4 micrometers.

[0061] Specifically, the second light-shielding layer 294 includes a plurality of second light-shielding portions 294a located on both sides of the privacy pixel, the width of the second light-shielding portions 294a ranging from 6 to 8 micrometers.

[0062] Specifically, the material of the second light-shielding layer 294 may include a light-absorbing material. For example, the second light-shielding layer 294 may include an inorganic black pigment or an organic black pigment. The inorganic black pigment may be carbon black, and the organic black pigment may include at least one of lactam black, dinaphthalene-containing black, and aniline black, but the embodiments of this application are not limited thereto.

[0063] Specifically, the materials of the first light-shielding layer 291 and the second light-shielding layer 294 can be black photoresist, that is, the first light-shielding layer 291 and the second light-shielding layer 294 can be black matrix layers.

[0064] Specifically, the thickness of the second planarization layer 295 ranges from 3 micrometers to 5 micrometers.

[0065] Specifically, the material of the second planarization layer 295 may include organic materials such as acrylic acid, benzocyclobutene (“BCB”) or hexamethyldisiloxane (“HMDSO”).

[0066] Specifically, such as Figure 9 , Figure 10 As shown, the display panel 1 may also include a third light-shielding layer 351 and a color resist layer 352, which may be disposed between the light-emitting functional layer 25 and the dimming functional layer 28.

[0067] Specifically, such as Figure 9 , Figure 10 As shown, the display panel 1 may also include a third flattening layer 353, which is disposed between the third light-shielding layer 351 and the dimming function layer 28.

[0068] Specifically, such as Figure 4 As shown, the driving circuit layer 22 includes a first barrier layer 221, a light-shielding metal layer 222, a second barrier layer 223, a buffer layer 224, an active layer 225, a first gate insulating layer 226, a first gate layer 227, a second gate insulating layer 228, a second gate layer 229, a first interlayer insulating layer 231, a semiconductor layer 232, a third gate insulating layer 233, a third gate layer 234, a second interlayer insulating layer 235, a first source-drain layer 236, a first planarization layer 237, a second source-drain layer 238, and a second planarization layer 242.

[0069] Specifically, the active layer can be made of silicon semiconductor, and the semiconductor layer can be made of oxide semiconductor.

[0070] Specifically, Figure 4 The driving circuit layer 22 shown in the illustration is illustrated with an example of an active layer, a semiconductor layer, three gate layers, and two source / drain layers arranged sequentially. However, the embodiments of this application are not limited to this. For example, the driving circuit layer 22 may have one or two gate layers. When two gate layers are present, they may be disposed on opposite sides of the active layer or on the same side of the active layer. One gate layer forms a gate, and the other forms a capacitor and / or a signal line. Alternatively, the driving circuit layer 22 may include one active layer, and may also have one or three source / drain layers. The film structure of the driving circuit layer 22 described in this application embodiment is merely an example. The structure of the driving circuit layer 22 in this application embodiment may also be other structures, which will not be elaborated here.

[0071] Specifically, such as Figure 4 As shown, the light-emitting functional layer 25 includes a pixel electrode layer 251, a pixel definition layer 252, a light-emitting material layer 253, and a common electrode layer 254.

[0072] Specifically, the pixel definition layer 252 may consist of only one film layer, which may be a transparent material or contain a light-blocking material; or the pixel definition layer 252 may consist of two film layers. For example, the pixel definition layer 252 may include a first pixel definition layer and a second pixel definition layer, where the light transmittance of the first pixel definition layer is greater than that of the second pixel definition layer. Both the first and second pixel definition layers are formed using light-transmitting photoresist, the difference being that the second pixel definition layer contains a light-blocking material. The hydrophilicity of the first pixel definition layer may be greater than that of the second pixel definition layer. The positions of the first and second pixel definition layers can be set according to requirements.

[0073] Specifically, when the material of the pixel definition layer 252 contains a light-shielding material, a third light-shielding layer and a color resist layer can be used; when the material of the pixel definition layer 252 is a transparent material, a polarizer can be used to reduce reflection.

[0074] Specifically, such as Figure 4 As shown, the light-emitting functional layer 25 also includes a support pillar 255.

[0075] Specifically, such as Figures 3 to 8 As shown, the encapsulation layer 26 includes a first inorganic encapsulation layer 261, an organic encapsulation layer 262, and a second inorganic encapsulation layer 263.

[0076] Specifically, the first inorganic encapsulation layer may include Al2O3, TiO2, Ta2O5, HfO2, ZnO, SiO2, or SiN. X At least one inorganic material among SiON.

[0077] In some embodiments, the first inorganic encapsulation layer 261 may include SiON. The second inorganic encapsulation layer 263 may include SiN. X .

[0078] Specifically, the organic encapsulation layer 262 may include polymeric materials. Polymeric materials may include acrylic resins, epoxy resins, polyimides, and polyethylene, etc. In some embodiments, the organic encapsulation layer may include acrylates.

[0079] Specifically, the thickness of the first inorganic encapsulation layer 261 ranges from 1 micrometer to 1.5 micrometers; the thickness of the organic encapsulation layer 262 ranges from 9 micrometers to 11 micrometers; and the thickness of the second inorganic encapsulation layer 263 ranges from 0.6 micrometers to 0.8 micrometers.

[0080] Specifically, such as Figure 4As shown, the touch layer 27 includes a first touch insulating layer 271, a first touch metal layer 272, a second touch insulating layer 273, and a second touch metal layer 274. However, the embodiments of this application are not limited to this. The number of touch metal layers and touch insulating layers can be other numbers, and the order of the film layers of touch metal layers and touch insulating layers can be other orders. For example, the touch layer 27 may also include a third touch insulating layer, which is disposed on the second touch metal layer 274.

[0081] Specifically, the materials of the first touch insulating layer 271, the second touch insulating layer 273, and the third touch insulating layer can be silicon nitride; the thickness of the first touch insulating layer 271, the second touch insulating layer 273, and the third touch insulating layer ranges from 0.1 micrometers to 0.3 micrometers.

[0082] Specifically, the pixel definition layer 252 includes multiple openings corresponding to the first non-peeping pixel 111, the second non-peeping pixel 112, and the third non-peeping pixel 113, respectively, and the area of ​​each opening may be the same or different.

[0083] Specifically, the pixel definition layer 252 includes multiple openings corresponding to the first privacy sub-pixel 121, the second privacy sub-pixel 122, and the third privacy sub-pixel 123, respectively. The area of ​​each opening can be the same or different. The width of each opening can be made similar, thereby ensuring that the JNCD (Just Noticeable Color Difference, used to characterize color difference) of the privacy pixels under different viewing angles is similar or even the same.

[0084] Specifically, the opening in pixel definition layer 252 corresponding to the first non-peeping pixel 111 can have the same area as the opening in pixel definition layer 252 corresponding to the first peeping pixel 121. The opening in pixel definition layer 252 corresponding to the second non-peeping pixel 112 can have the same area as the opening in pixel definition layer 252 corresponding to the second peeping pixel 122. The opening in pixel definition layer 252 corresponding to the third non-peeping pixel 113 can have the same area as the opening in pixel definition layer 252 corresponding to the third peeping pixel 123.

[0085] In some embodiments, when the display panel 1 is configured in sharing mode, both the non-spy pixel 11 and the privacy pixel 12 emit light; when the display panel 1 is configured in privacy mode, the non-spy pixel 11 does not emit light, and the privacy pixel 12 emits light.

[0086] In some embodiments, at a viewing angle of 30 degrees to 45 degrees, the brightness of the privacy pixel 12 is 1% to 10% of the brightness of the normal viewing angle (which can be considered as a 0-degree viewing angle); at a viewing angle of 60 degrees, the brightness of the non-privacy pixel 11 is 20% to 30% of the brightness of the normal viewing angle (which can be considered as a 0-degree viewing angle).

[0087] Specifically, since the pixel is formed by the light-emitting functional layer, the first light-shielding layer 291, the second light-shielding layer 294, and the light-emitting functional layer 25 are different film layers located on different planes in the thickness direction of the display panel. Therefore, when explaining the positional relationship between the first light-shielding layer 291, the second light-shielding layer 294, and the pixel or the light-emitting part of the pixel in the first direction X and the second direction Y, it is necessary to make the first light-shielding layer 291, the second light-shielding layer 294, and the light-emitting functional layer 25 located on the same plane. Therefore, the relative positions of the structures of each film layer can be explained based on the projection of the first light-shielding layer 291, the second light-shielding layer 294, and the light-emitting functional layer 25 onto the same plane.

[0088] Understandably, this plane can be the plane where the substrate is located, the ground, or other films or interfaces.

[0089] Specifically, regarding the projection onto the same plane, in the first direction X, the privacy pixel has a first light-blocking part 291a and a second light-blocking part 294a on both sides. That is, in the first direction X, the projection of the light-emitting part corresponding to the privacy pixel onto a plane has the first light-blocking part 291a and the second light-blocking part 294a projected onto the same plane on both sides. Similarly, the meaning of other relative positions can be determined, which will not be elaborated here.

[0090] Specifically, in the following embodiments, when different structures are located in different film layers, the relative positions of multiple structures in the first direction X and the second direction Y are described based on their projections onto the same plane, and will not be repeated in the following embodiments.

[0091] In some embodiments, the display panel 1 further includes a bonding area 102a, which is disposed on one side of the display panel 1 along the second direction Y, such that the non-peeping pixel 11 does not have a first light-blocking part 291a and a second light-blocking part 294a on the upper and lower sides, thereby slowing down the brightness decay on the upper and lower sides of the display panel, improving the transmittance of the display panel, and improving the viewing angle performance of the display panel.

[0092] like Figures 1 to 10As shown, this application embodiment provides a display panel, which includes a display area 101, a functional area 103, and a transition area 104. The transition area 104 is disposed between the display area 101 and the functional area 103. The display panel 1 includes a substrate 21 and a dimming functional layer 28, a first light-shielding layer 291, a first planarization layer 290, a second light-shielding layer 294, and a second planarization layer 295 disposed on one side of the substrate 21. The dimming functional layer 28 includes a first refractive index layer 281 and a second refractive index layer 282. The first refractive index layer 281 is disposed between the substrate 21 and the second refractive index layer 282. The refractive index of the first refractive index layer 281 is less than the refractive index of the second refractive index layer 282. In this embodiment, at least one of the second refractive index layer 282, the first planarization layer 290 and the second planarization layer 295 is provided with a first through hole 33. The first through hole 33 is disposed in the functional region 103 and the transition region 104, and the boundary of the first through hole 33 is located within the transition region 104.

[0093] This application provides a display panel 1 in which at least one of the second refractive index layer 282, the first planarization layer 290, and the second planarization layer 295 is provided with a first through-hole 33. The first through-hole 33 is disposed in the functional area 103 and the transition area 104, and the boundary of the first through-hole 33 is located within the transition area. This can reduce the internal stress between adjacent film layers, reduce the internal stress transmitted to the lower film layer, reduce the stress on the lower film layer, reduce the risk of peeling of the light-emitting material layer and the common electrode layer, thereby reducing the risk of water and oxygen intrusion, improving the encapsulation effect, and improving the reliability of the display panel.

[0094] Specifically, in some display devices, in order to achieve the privacy protection effect, multiple black matrix layers are set to block the light emission of sub-pixels from a wide viewing angle. However, this design requires the addition of multiple organic layers and blocking layers. In order to improve the efficiency reduction caused by the privacy protection design, a light emission efficiency improvement solution is used, such as MLP (Micro Lens Panel) technology. Since MLP technology requires the use of materials with different refractive indices, different materials have different shrinkage rates under high temperature and high humidity environments, which can easily generate interfacial stress and lead to film peeling. Especially in the hole area, film peeling is prone to occur, leading to encapsulation failure.

[0095] In this embodiment of the application, to address this technical problem, at least one of the second refractive index layer 282, the first planarization layer 290, and the second planarization layer 295 is provided with a first through-hole 33, and the boundary of the first through-hole 33 is located within the transition region. This reduces the overlap area between adjacent layers, thereby reducing the internal stress between adjacent film layers, reducing the internal stress transmitted to the bottom inorganic layer, reducing the stress on the bottom inorganic layer and the light-emitting layer, reducing the risk of peeling off the light-emitting material layer and the common electrode layer, thereby reducing the risk of water and oxygen intrusion, improving the encapsulation effect, and improving the reliability of the display panel.

[0096] Specifically, the principles behind the stress on the inorganic and light-emitting layers caused by different film layers are explained as follows: Under high temperature and high humidity conditions, the film layers will shrink. Due to the different materials of the different film layers, the shrinkage rates of the different film layers are different. Therefore, the deformation between the different film layers is different, which causes the deformation of the film layers to generate stress on the underlying inorganic and light-emitting layers, thereby causing the light-emitting layer to peel off.

[0097] For example, the shrinkage rates of the second refractive index layer 282 and the first refractive index layer 281 differ under high temperature and high humidity conditions. For instance, if the second refractive index layer 282 has a higher shrinkage rate, it will generate tensile stress on the inorganic encapsulation layer, the light-emitting material layer, and the common electrode layer, leading to the peeling of the light-emitting layer. Alternatively, if the first refractive index layer 281 has a higher shrinkage rate, it will generate compressive stress on the inorganic encapsulation layer, the light-emitting material layer, and the common electrode layer, leading to the peeling of the light-emitting layer. Of course, when the film peeling is caused by other principles, the solution described in the embodiments of this application can also be used to solve this technical problem.

[0098] In some embodiments, such as Figures 3 to 8 As shown, the display panel 1 also includes an isolation pillar 31, which includes an undercut structure 3a. The isolation pillar 31 is disposed within the transition area 104, and the boundary of the first through hole is located between the isolation pillar 31 and the display area 101. This can avoid stress concentration points, reduce the risk of light-emitting layer peeling, and improve the reliability of the display panel.

[0099] Specifically, in display panel 1, in order to prevent water and oxygen intrusion from causing encapsulation failure, isolation pillars 31 are set in transition area 104 to isolate some common layers in light-emitting functional layer 25. For example, the light-emitting material layer includes hole layer, electron layer and emission layer. Hole layer and electron layer can be continuously set between multiple sub-pixels, while emission layer is set for each sub-pixel. The emission layers corresponding to multiple sub-pixels can be disconnected, so hole layer and electron layer can be common layer, so that isolation pillars 31 isolate hole layer and electron layer, thereby avoiding water and oxygen intrusion.

[0100] However, stress concentration is prone to occur in the area where the isolation pillar 31 is located, causing the common layer separated by the isolation pillar 31 to warp. This leads to water and oxygen intrusion from inside the common layer and at the interface between the common layer and other film layers, resulting in water and oxygen intrusion into the display area. Furthermore, film peeling can affect the connection effect of other film layers, further increasing the risk of encapsulation failure. In this embodiment, by positioning the boundary of the first through-hole 33 between the isolation pillar 31 and the display area 101, stress concentration points can be avoided, resulting in lower stress at the location of the isolation pillar 31, reducing the risk of film peeling, improving the encapsulation effect, and enhancing the reliability of the display panel.

[0101] Specifically, in the area where the isolation pillar 31 is located, due to the relatively complex structure, the membrane itself will have internal stress. When the upper membrane generates stress on the inorganic layer and the light-emitting layer in the area where the isolation pillar 31 is located, it will further increase the risk of peeling of the inorganic layer and the light-emitting layer. In this embodiment, by setting a first through hole in some membrane layers in the area corresponding to the isolation pillar 31, the shrinkage of the membrane in this area is avoided from generating stress on the inorganic layer and the light-emitting layer, thereby reducing the risk of peeling of the inorganic layer and the light-emitting layer.

[0102] Specifically, the luminescent material layer includes a hole layer, an electron layer, and an emission layer. The hole layer may include a hole injection layer and a hole transport layer, and the electron layer may include an electron transport layer and an electron injection layer.

[0103] In some embodiments, the common layer further includes a common electrode layer 254. Figure 5 The diagram illustrates the disconnection of the light-emitting material layer 253. Similarly, the common electrode layer 254 can also be disconnected at the isolation pillar 31.

[0104] In some embodiments, the luminescent material layer is disconnected by the isolation pillar 31, and the common electrode layer 254 is disconnected by the isolation pillar 31.

[0105] In some embodiments, such as Figure 5 As shown, the display panel 1 further includes a light-emitting material layer 253, which is disposed between the substrate 21 and the dimming functional layer 28. The isolation pillar 31 includes a first isolation portion 31a and a second isolation portion 31b. The second isolation portion 31b is disposed between the first isolation portion 31a and the substrate 21. The first isolation portion 31a extends beyond the second isolation portion 31b to form an isolation groove 31d. The light-emitting material layer 253 is disconnected at the isolation groove 31d. This allows the light-emitting material layer 253 to be disconnected via the isolation pillar 31, preventing water and oxygen from invading the display area from the light-emitting material layer 253 and improving the encapsulation effect.

[0106] Specifically, the first isolation portion 31a and the second isolation portion 31b in the isolation pillar 31 can be formed by some film layers in the driving circuit layer, or by independent film layers. For example, they can be formed by the second source-drain layer in the driving circuit layer, or by the insulating layer combined with the metal layer in the driving circuit layer, or by one or more insulating layers in the driving circuit layer. This application does not limit this.

[0107] Specifically, the isolation pillar 31 may also include a third isolation portion 31c, which is disposed between the second isolation portion 31b and the substrate 21. The third isolation portion 31c extends beyond the second isolation portion 31b, and the portions of the first isolation portion 31a and the third isolation portion 31c that extend beyond the second isolation portion 31b form an isolation groove 31d with the second isolation portion 31b.

[0108] Specifically, such as Figure 5 As shown, the width of the second isolation portion 31b is smaller than the width of the first isolation portion 31a, and the width of the second isolation portion 31b is smaller than the width of the third isolation portion 31c. Isolation grooves are provided on both sides of the second isolation portion 31b. The light-emitting material layer is disconnected by the isolation grooves, and the common electrode layer is disconnected by the isolation grooves. Thus, the common layer can be disconnected through the isolation pillar 31 to achieve the encapsulation of the display panel.

[0109] Specifically, the undercut structure 3a can be composed of a first isolation part 31a, a second isolation part 31b and an isolation groove 31d, or it can be composed of a first isolation part 31a, a second isolation part 31b, a third isolation part 31c and an isolation groove 31d.

[0110] Specifically, such as Figure 5 As shown, the isolation pillar 31 can be disposed on the second source-drain layer 238, thereby avoiding the increase of display panel processes and film layers, improving the display panel manufacturing efficiency, and reducing the thickness of the display panel.

[0111] Specifically, such as Figure 5 As shown, the second source / drain layer 238 includes a first titanium layer 238a, an aluminum layer 238b, and a second titanium layer 238c. The first titanium layer 238a and the second titanium layer 238c are made of titanium, and the aluminum layer 238b is made of aluminum. The first isolation portion 31a, the second isolation portion 31b, and the third isolation portion 31c can be respectively disposed on the first titanium layer 238a, the aluminum layer 238b, and the second titanium layer 238c, so that isolation trenches can be formed by the different etching properties of the materials, thereby disconnecting the common layer.

[0112] Specifically, the above embodiment uses the second source-drain layer 238 forming the isolation pillar 31 as an example for illustration. However, the embodiments of this application are not limited to this. Other film layers can be used to form the isolation pillar 31. For example, the first source-drain layer can be used to form the isolation pillar 31. When the driving circuit layer of the display panel is a different film layer structure, other film layers can be used to form the isolation pillar 31. For example, if the driving circuit layer includes a third source-drain layer, the third source-drain layer can be used to form the isolation pillar 31.

[0113] In some embodiments, in order to improve the isolation effect of the isolation pillar 31, the isolation pillar can also be formed by multiple metal layers and an insulating layer between the multiple metal layers. For example, the isolation pillar 31 is formed by a third gate layer 234, a second interlayer insulating layer 235, and a second source-drain layer 238. The third gate layer 234 and the second interlayer insulating layer 235 pad the second source-drain layer 238, and the multiple film layers of the second source-drain layer 238 form an isolation trench, thereby disconnecting the common layer.

[0114] Specifically, in this embodiment, the second source / drain layer 238 includes a first titanium layer 238a, an aluminum layer 238b, and a second titanium layer 238c as an example for illustration. However, this embodiment is not limited to this, and the second source / drain layer 238 can be other film layers.

[0115] Specifically, the isolation column can also be formed by independent membrane layers, or the isolation column can be formed by two membrane layers to form an isolation groove, which will not be elaborated further in the embodiments of this application.

[0116] In some embodiments, such as Figure 3 , Figures 5 to 8 As shown, the isolation pillar 31 includes a first isolation pillar 311 and a second isolation pillar 312. The first isolation pillar 311 is disposed between the second isolation pillar 312 and the display area 101; thereby improving the isolation effect, reducing the risk of water and oxygen intrusion from the common layer, and improving the encapsulation performance of the display panel.

[0117] Specifically, when setting up isolation pillars, in order to avoid the problem of encapsulation failure caused by a single isolation pillar 31 failing to isolate the common layer, multiple isolation pillars with intervals can be set. For example, a first isolation pillar 311 and a second isolation pillar 312 with intervals can be set so that the common layer can be disconnected by the first isolation pillar 311 and the second isolation pillar 312, reducing the risk of water and oxygen intrusion from the common layer and improving the encapsulation performance of the display panel.

[0118] In some embodiments, such as Figure 3 , Figures 5 to 8As shown, the isolation pillar 31 includes a first isolation pillar 311 and a second isolation pillar 312. The first isolation pillar 311 is disposed between the second isolation pillar 312 and the display area 101. The boundary of the first through hole 33 is located between the first isolation pillar 311 and the display area 101. This can avoid stress concentration points, reduce the risk of light-emitting layer peeling, and improve the reliability of the display panel.

[0119] Specifically, when the isolation pillar 31 includes a first isolation pillar 311 and a second isolation pillar 312, stress concentration is prone to occur in the areas where the first isolation pillar 311 and the second isolation pillar 312 are located. This can cause the common layer separated by the first isolation pillar 311 and the second isolation pillar 312 to lift, leading to the intrusion of water and oxygen from inside the common layer and at the interface between the common layer and other film layers. This water and oxygen can then penetrate into the display area, and film peeling can affect the connection effect of other film layers, further increasing the risk of encapsulation failure. In this embodiment, by placing the boundary of the first through-hole 33 between the first isolation pillar 311 and the display area 101, stress concentration points can be avoided, resulting in lower stress at the location of the first isolation pillar 311, reducing the risk of film peeling, improving the encapsulation effect, and enhancing the reliability of the display panel.

[0120] Specifically, the boundary of the first through hole 33 can be located between the second isolation post 312 and the display area 101; the boundary of the first through hole 33 can be located between the second isolation post 312 and the first isolation post 311, or the boundary of the first through hole 33 can be located above the first isolation post 311.

[0121] In some embodiments, the display panel 1 further includes a baffle 32 disposed within the transition area 104. The baffle 32 is located between the isolation pillar 31 and the display area 101, and the boundary of the first through hole 33 is located between the baffle 32 and the display area 101. This can avoid stress concentration points, reduce the risk of light-emitting layer peeling, and improve the reliability of the display panel.

[0122] Specifically, in the display panel 1, to prevent water and oxygen intrusion leading to encapsulation failure, a barrier wall 32 is set in the transition area 104 to block the organic encapsulation layer, preventing the organic encapsulation layer from overflowing into the functional area and causing water and oxygen to intrude from the organic encapsulation layer and / or the interface between the organic and inorganic encapsulation layers. However, stress concentration is prone to occur in the area where the barrier wall 32 is set, causing the common layer and / or other film layers to lift. This leads to water and oxygen intrusion from inside the common layer and at the interface between the common layer and other film layers, or from other lifted film layers, resulting in water and oxygen intrusion into the display area. Furthermore, film peeling affects the connection effect of other film layers, further increasing the risk of encapsulation failure. In this embodiment, by placing the boundary of the first through hole 33 between the barrier wall 32 and the display area 101, stress concentration points can be avoided, resulting in lower stress at the locations of the barrier wall 32 and the isolation pillar, reducing the risk of film peeling, improving the encapsulation effect, and enhancing the reliability of the display panel.

[0123] Specifically, in the area where the retaining wall 32 is located, due to the relatively complex structure, the membrane itself will have internal stress. When the upper membrane generates stress on the inorganic layer and the light-emitting layer in the area where the retaining wall 32 is located, it will further increase the risk of the inorganic layer and the light-emitting layer peeling off. In this embodiment, by setting a first through hole in some membrane layers in the area corresponding to the retaining wall 32, the shrinkage of the membrane layer in this area is prevented from generating stress on the inorganic layer and the light-emitting layer, thereby reducing the risk of the inorganic layer and the light-emitting layer peeling off.

[0124] It is also understandable that, since the inorganic layer and light-emitting layer at the location of the retaining wall 32 and the isolation column 31 are closer to the upper film layer than other areas, the stress generated by the upper film layer on the inorganic layer and the light-emitting layer will be greater, which will increase the risk of peeling of the inorganic layer and the light-emitting layer. In this embodiment of the application, by setting a first through hole in some film layers in the area corresponding to the retaining wall 32, the shrinkage of the film layers in these areas is prevented from generating stress on the inorganic layer and the light-emitting layer, thereby reducing the risk of peeling of the inorganic layer and the light-emitting layer.

[0125] In some embodiments, the barrier 32 includes portions located in the pixel definition layer 252 and the support pillar 255, thereby avoiding the need to increase the process and film layers of the display panel, improving the manufacturing efficiency of the display panel, and reducing the thickness of the display panel.

[0126] In some embodiments, the retaining wall 32 may further include a portion located in the second planarization layer 242. In some embodiments, the retaining wall 32 may further include a portion located in the first planarization layer 237.

[0127] In some embodiments, such as Figure 3 , Figures 5 to 8 As shown, the barrier 32 includes a first barrier 321 and a second barrier 322, with the first barrier 321 disposed between the second barrier 322 and the display area 101.

[0128] Specifically, when setting up the barrier, in order to avoid the problem of encapsulation failure caused by a single barrier failing to block the organic encapsulation layer, multiple barrier walls can be set at intervals. For example, a first barrier wall 321 and a second barrier wall 322 can be set at intervals so that the organic encapsulation layer overflowing from the first barrier wall 321 can also be blocked by the second barrier wall 322, reducing the risk of water and oxygen intrusion and improving the encapsulation performance of the display panel.

[0129] In some embodiments, such as Figure 3 , Figures 5 to 8 As shown, the barrier 32 includes a first barrier 321 and a second barrier 322. The first barrier 321 is disposed between the second barrier 322 and the display area 101, and the boundary of the first through hole 33 is located between the first barrier 321 and the display area 101. This can avoid stress concentration points, reduce the risk of light-emitting layer peeling, and improve the reliability of the display panel.

[0130] Specifically, when the barrier 32 includes a first barrier 321 and a second barrier 322, stress concentration is prone to occur in the areas where the first barrier 321 and the second barrier 322 are located. This can cause the common layer separated by the isolation pillar to warp, leading to the intrusion of water and oxygen from inside the common layer and at the interface between the common layer and other film layers. This water and oxygen can then penetrate into the display area, and film peeling can affect the connection effect of other film layers, further increasing the risk of encapsulation failure. In this embodiment, by placing the boundary of the first through-hole 33 between the first barrier 321 and the display area 101, stress concentration points can be avoided, resulting in lower stress at the locations of the first barrier 321, the second barrier 322, and the isolation pillar. This reduces the risk of film peeling, improves the encapsulation effect, and enhances the reliability of the display panel.

[0131] Specifically, the boundary of the first through hole 33 can be located on the side of the second barrier wall 322 closer to the display area; the boundary of the first through hole 33 can be located between the isolation post and the second barrier wall 322, for example, between the first isolation post 311 and the second barrier wall 322; the boundary of the first through hole 33 can be located between the second barrier wall 322 and the display area 101; the boundary of the first through hole 33 can be located between the second barrier wall 322 and the first barrier wall 321; the boundary of the first through hole 33 can be located above the first barrier wall 321; or the boundary of the first through hole 33 can be located above the second barrier wall 322.

[0132] Specifically, it is understandable that when the boundary of the first through hole 33 is set between the first retaining wall 321 and the display area 101, stress concentration points such as retaining walls and isolation columns can be avoided, thereby reducing internal stress and improving the reliability of the display panel.

[0133] In some embodiments, such as Figure 3 As shown, the transition region 104 includes a winding region 104a and a packaging region 104b, and the boundary of the first through hole 33 can be set within the winding region 104a.

[0134] Specifically, signal traces can be set within the winding area 104a, and an organic encapsulation layer can be set within the winding area 104a; the boundary of the organic encapsulation layer is located at the junction of the winding area 104a and the encapsulation area 104b.

[0135] Specifically, such as Figure 5 As shown, Figure 5 The example described uses the second gate layer 229 and the third gate layer 234 forming signal traces in the winding region 104a. However, the embodiments of this application are not limited to this. The signal traces in the winding region 104a can be disposed in one, two or more metal layers (i.e., gate layer and / or source-drain layer) in the display panel.

[0136] Specifically, signal traces can be connection traces that transmit signals such as scan lines, data lines, and power lines, or they can be traces that transmit other signals. This application does not limit this.

[0137] Specifically, since no organic encapsulation layer is provided in the encapsulation area 104b, and the inorganic encapsulation layer is in direct contact, the inorganic encapsulation layer is prone to stress when the shrinkage rate of the upper film layer is different, which can lead to the peeling of the light-emitting layer. In this embodiment, by placing the boundary of the first through hole 33 within the winding area 104a, the stress caused by the different shrinkage rates of the upper film layer can be avoided, the internal stress can be reduced, the risk of peeling of the light-emitting layer can be reduced, and the encapsulation performance of the display panel can be improved.

[0138] Specifically, the boundary of the first via 33 can be set on the side of the organic encapsulation layer near the display area.

[0139] In some embodiments, such as Figure 3 , Figure 5 As shown, the second refractive index layer 282 is provided with the first through hole 33, and the boundary of the second refractive index layer 282 near the functional area 103 is located between the barrier 32 and the display area 101; thereby reducing the stress transmitted to the bottom film layer, improving the encapsulation performance of the display panel, and improving the reliability of the display panel.

[0140] In some embodiments, the first refractive index layer 281 and the second refractive index layer 282 are made of different materials.

[0141] In some embodiments, the second refractive index layer 282 is made of a different material than the first light-shielding layer 291.

[0142] In some embodiments, the second refractive index layer 282 is made of a different material than the first planarization layer.

[0143] In some embodiments, the shrinkage rates of the first refractive index layer 281 and the second refractive index layer 282 are different under the same environment (e.g., under the same humidity and temperature).

[0144] In some embodiments, under the same environment (e.g., under the same humidity and temperature conditions), the shrinkage rate of the second refractive index layer 282 is different from that of the first light-shielding layer 291.

[0145] In some embodiments, the second refractive index layer 282 has a different shrinkage rate than the first planarization layer under the same environment (e.g., under the same humidity and temperature conditions).

[0146] Specifically, in order to improve the light emission effect of the display panel, a first refractive index layer 281 and a second refractive index layer 282 are provided. The shrinkage rates of the first refractive index layer 281 and the second refractive index layer 282 are different, and the shrinkage rate of the second refractive index layer 282 is also different from that of other film layers, resulting in different deformation of different film layers. This will create stress on the underlying inorganic layer, causing the light-emitting layer (which may be the light-emitting material layer or the light-emitting material layer and the common electrode layer) at the baffle to peel off. In this embodiment, the second refractive index layer 282 is provided with a first through hole 33. The boundary of the first through hole 33 is located between the baffle 32 and the display area 101, thereby avoiding stress concentration points, preventing the light-emitting layer from peeling off, improving the encapsulation performance of the display panel, and improving the reliability of the display panel.

[0147] Specifically, when the second refractive index layer 282 is provided with a first through hole 33, the location of the first through hole 33 can be referred to the above embodiment, and will not be repeated here.

[0148] In some embodiments, the distance between the boundary of the second refractive index layer 282 and the first barrier is less than or equal to the distance between the boundary of the second refractive index layer 282 and the display area.

[0149] In some embodiments, the distance between the boundary of the second refractive index layer 282 and the first barrier is greater than the distance between the boundary of the second refractive index layer 282 and the display area; thereby further avoiding stress concentration points, preventing the light-emitting layer from peeling off, improving the encapsulation performance of the display panel, and improving the reliability of the display panel.

[0150] In some embodiments, the first light-shielding layer 291 is provided with a second through hole 341, which penetrates the first light-shielding layer 291. The boundary of the second through hole 341 is located on the side of the isolation pillar near the display area 101, thereby avoiding stress concentration points, reducing the risk of light-emitting layer peeling, and improving the reliability of the display panel.

[0151] Specifically, some display devices place the boundary of the first light-shielding layer 291 at the junction of the functional area 103 and the transition area 104. However, the material of the first light-shielding layer 291 is different from the materials of the upper and lower film layers. This causes the shrinkage rate of the first light-shielding layer 291 to differ from that of the upper and lower film layers, resulting in stress on the underlying inorganic layer and consequently causing the light-emitting layer to peel off. In this embodiment, by placing the boundary of the second through-hole 341 on the side of the isolation pillar closer to the display area 101, stress concentration points can be avoided, preventing the light-emitting layer from peeling off, improving the packaging performance of the display panel, and enhancing the reliability of the display panel.

[0152] In some embodiments, the boundary of the second through hole 341 is located on the side of the first isolation pillar 311 near the display area 101, thereby further avoiding stress concentration points, reducing the risk of light-emitting layer peeling, and improving the reliability of the display panel.

[0153] In some embodiments, the boundary of the second through-hole 341 is located on the side of the second isolation post 312 near the display area 101. In some embodiments, the boundary of the second through-hole 341 is located between the second isolation post 312 and the first isolation post 311. In some embodiments, the boundary of the second through-hole 341 is located above the second isolation post 312. In some embodiments, the boundary of the second through-hole 341 is located above the first isolation post 311. In some embodiments, the boundary of the second through-hole 341 is located between the isolation post and the retaining wall.

[0154] In some embodiments, such as Figures 3 to 8 As shown, the first light-shielding layer 291 is provided with a second through hole 341. The second through hole 341 is disposed in the functional area 103 and the transition area 104. The boundary of the second through hole 341 is located on the side of the barrier wall 32 near the display area 101. This avoids the problem of stress forming in the underlying inorganic layer due to the inconsistent shrinkage rate of the first light-shielding layer 291 and other film layers, which could lead to the peeling of the light-emitting layer. This improves the encapsulation performance of the display panel and enhances the reliability of the display panel.

[0155] In some embodiments, the boundary of the second through hole 341 is located on the side of the second barrier wall 322 near the display area, thereby further avoiding stress concentration points, reducing the risk of light-emitting layer peeling, and improving the reliability of the display panel.

[0156] In some embodiments, the boundary of the second through hole 341 is located on the side of the first barrier wall 321 near the display area, thereby further avoiding stress concentration points, reducing the risk of light-emitting layer peeling, and improving the reliability of the display panel.

[0157] In some embodiments, the boundary of the second through hole 341 is located above the second baffle wall 322. In some embodiments, the boundary of the second through hole 341 is located between the second baffle wall 322 and the first baffle wall 321. In some embodiments, the boundary of the second through hole 341 is located between the first baffle wall 321 and the display area 101.

[0158] In some embodiments, such as Figure 3 , Figures 5 to 7 As shown, the boundary of the first light-shielding layer 291 may be located at the junction of the display area 101 and the transition area 104. In some embodiments, the boundary of the first light-shielding layer 291 may be located within the display area 101.

[0159] In some embodiments, such as Figure 8 As shown, the boundary of the first light-shielding layer 291 can be located within the transition zone 104.

[0160] In some embodiments, the width of the first light-shielding portion 291a located at the junction of the display area 101 and the transition area 104 is greater than the width of the first light-shielding portion 291a located within the display area 101, so that the first light-shielding portion 291a can shield the edge of the display area 101 and can extend into the transition area for light shielding.

[0161] In some embodiments, the material of the first light-shielding layer 291 is different from the material of the first planarization layer.

[0162] In some embodiments, the shrinkage rate of the first light-shielding layer 291 is different from that of the first flat layer under the same environment (e.g., under the same humidity and temperature).

[0163] In some embodiments, such as Figure 3 As shown, the transition region 104 includes a winding region 104a and a packaging region 104b, and the boundary of the second through hole 341 can be set within the winding region 104a.

[0164] Specifically, since no organic encapsulation layer is provided in the encapsulation area 104b, and the inorganic encapsulation layer is in direct contact, the inorganic encapsulation layer is prone to stress when the shrinkage rate of the upper film layer is different, which can lead to the peeling of the light-emitting layer. In this embodiment, by placing the boundary of the second through hole 341 within the winding area 104a, the stress caused by the different shrinkage rate of the upper film layer can be avoided, thus reducing internal stress, lowering the risk of peeling of the light-emitting layer, and improving the encapsulation performance of the display panel.

[0165] Specifically, the boundary of the second via 341 can be set on the side of the organic encapsulation layer near the display area, or the boundary of the second via 341 can be flush with the boundary of the organic encapsulation layer.

[0166] In some embodiments, the second light-shielding layer 294 is provided with a third through hole 342, which penetrates the second light-shielding layer 294. The boundary of the third through hole 342 is located on the side of the isolation pillar near the display area 101, thereby avoiding stress concentration points, reducing the risk of light-emitting layer peeling, and improving the reliability of the display panel.

[0167] Specifically, some display devices place the boundary of the second light-shielding layer 294 at the junction of the functional area 103 and the transition area 104. However, the material of the second light-shielding layer 294 is different from the materials of the upper and lower film layers. This causes the shrinkage rate of the second light-shielding layer 294 to differ from that of the upper and lower film layers, resulting in stress on the underlying inorganic layer and consequently causing the light-emitting layer to peel off. In this embodiment, by placing the boundary of the third through-hole 342 on the side of the isolation pillar closer to the display area 101, stress concentration points can be avoided, preventing the light-emitting layer from peeling off, improving the packaging performance of the display panel, and enhancing the reliability of the display panel.

[0168] In some embodiments, the boundary of the third through hole 342 is located on the side of the first isolation pillar 311 near the display area 101, thereby further avoiding stress concentration points, reducing the risk of light-emitting layer peeling, and improving the reliability of the display panel.

[0169] In some embodiments, the boundary of the third through-hole 342 is located on the side of the second isolation post 312 near the display area 101. In some embodiments, the boundary of the third through-hole 342 is located between the second isolation post 312 and the first isolation post 311. In some embodiments, the boundary of the third through-hole 342 is located above the second isolation post 312. In some embodiments, the boundary of the third through-hole 342 is located above the first isolation post 311. In some embodiments, the boundary of the third through-hole 342 is located between the isolation post and the retaining wall.

[0170] In some embodiments, such as Figures 3 to 8 As shown, the second light-shielding layer 294 is provided with a third through hole 342. The third through hole 342 is disposed in the functional area 103 and the transition area 104. The boundary of the third through hole 342 is located on the side of the barrier wall 32 near the display area 101. This avoids the problem of stress forming in the underlying inorganic layer due to the inconsistent shrinkage rate of the first light-shielding layer 291 and other film layers, which could lead to the peeling of the light-emitting layer. This improves the encapsulation performance of the display panel and enhances the reliability of the display panel.

[0171] In some embodiments, the boundary of the third through hole 342 is located on the side of the second retaining wall 322 near the display area, thereby further avoiding stress concentration points, reducing the risk of light-emitting layer peeling, and improving the reliability of the display panel.

[0172] In some embodiments, the boundary of the third through hole 342 is located on the side of the first retaining wall 321 near the display area, thereby further avoiding stress concentration points, reducing the risk of light-emitting layer peeling, and improving the reliability of the display panel.

[0173] In some embodiments, the boundary of the third through hole 342 is located above the second barrier wall 322. In some embodiments, the boundary of the third through hole 342 is located between the second barrier wall 322 and the first barrier wall 321. In some embodiments, the boundary of the third through hole 342 is located between the first barrier wall 321 and the display area 101.

[0174] In some embodiments, such as Figure 3 , Figures 5 to 7 As shown, the boundary of the second light-shielding layer 294 may be located at the junction of the display area 101 and the transition area 104. In some embodiments, the boundary of the second light-shielding layer 294 may be located within the display area 101.

[0175] In some embodiments, such as Figure 8 As shown, the boundary of the second light-shielding layer 294 can be located within the transition zone 104.

[0176] In some embodiments, the width of the second light-shielding portion 294a located at the junction of the display area 101 and the transition area 104 is greater than the width of the second light-shielding portion 294a located within the display area 101, so that the second light-shielding portion 294a can shield the edge of the display area 101 and can extend into the transition area for light shielding.

[0177] In some embodiments, the material of the second light-shielding layer 294 is different from the material of the first planarization layer. In some embodiments, the material of the second light-shielding layer 294 is different from the material of the second planarization layer.

[0178] In some embodiments, under the same environmental conditions (e.g., at the same humidity and temperature), the second light-shielding layer 294 has a different shrinkage rate than the first planarization layer.

[0179] In some embodiments, such as Figure 3 As shown, the transition region 104 includes a winding region 104a and a packaging region 104b, and the boundary of the third through hole 342 can be set within the winding region 104a.

[0180] Specifically, since no organic encapsulation layer is provided in the encapsulation area 104b, and the inorganic encapsulation layer is in direct contact, the inorganic encapsulation layer is prone to stress when the shrinkage rate of the upper film layer is different, which can lead to the peeling of the light-emitting layer. In this embodiment, by placing the boundary of the third through hole 342 within the winding area 104a, the stress caused by the different shrinkage rate of the upper film layer can be avoided, thus reducing internal stress, reducing the risk of peeling of the light-emitting layer, and improving the encapsulation performance of the display panel.

[0181] Specifically, the boundary of the third via 342 can be set on the side of the organic encapsulation layer near the display area, or the boundary of the third via 342 can be flush with the boundary of the organic encapsulation layer.

[0182] In some embodiments, the isolation pillar 31 is disposed within the transition region 104, and the boundary of the first through hole 33 is located between the isolation pillar 31 and the functional region 103; thereby reducing the internal stress between adjacent film layers, reducing the internal stress transmitted to the lower film layer, reducing the stress on the lower film layer, reducing the risk of peeling of the light-emitting material layer and the common electrode layer, thereby reducing the risk of water and oxygen intrusion, improving the encapsulation effect, and improving the reliability of the display panel.

[0183] In some embodiments, the first planarization layer 290 is provided with the first through-hole 33, and the boundary of the first planarization layer 290 near the functional area 103 is located within the transition area 104; thereby reducing the stress on the underlying film layer, reducing the stress transmitted to the underlying film layer, improving the encapsulation performance of the display panel, and improving the reliability of the display panel.

[0184] In some embodiments, the first planarization layer 290 and the second planarization layer 295 are made of different materials.

[0185] In some embodiments, the shrinkage rates of the first flattening layer 290 and the second flattening layer 295 are different under the same environment (e.g., under the same humidity and temperature conditions).

[0186] Specifically, to achieve privacy protection, a first light-shielding layer 291 and a second light-shielding layer 294 are provided. To achieve light-shielding effects at different angles, a first planarization layer is provided between the first light-shielding layer 291 and the second light-shielding layer 294 to raise the second light-shielding layer 294. However, the shrinkage rate of the first planarization layer 290 is different from that of the adjacent film layer, resulting in different deformations of the different film layers. This will create stress on the underlying inorganic layer, causing the light-emitting layer (which may be a light-emitting material layer or a light-emitting material layer and a common electrode layer) at the barrier to peel off. In this embodiment, the first planarization layer 290 is provided with a first through-hole 33, and the boundary of the first through-hole 33 is located between the transition areas 104, thereby avoiding stress concentration points, preventing the light-emitting layer from peeling off, improving the encapsulation performance of the display panel, and improving the reliability of the display panel.

[0187] Specifically, when the first planarization layer 290 is provided with a first through hole 33, the location of the first through hole 33 can be referred to the above embodiment, and will not be repeated here.

[0188] In some embodiments, the distance between the boundary of the first flat layer 290 and the first retaining wall is less than or equal to the distance between the boundary of the first flat layer 290 and the display area.

[0189] In some embodiments, the distance between the boundary of the first flattening layer 290 and the first barrier is greater than the distance between the boundary of the first flattening layer 290 and the display area; thereby further avoiding stress concentration points, preventing the emissive layer from peeling off, improving the encapsulation performance of the display panel, and improving the reliability of the display panel.

[0190] In some embodiments, such as Figures 3 to 7 As shown, the first planarization layer 290 includes a first sub-layer 292 and a second sub-layer 293, with the first sub-layer 292 disposed between the first light-shielding layer 291 and the second sub-layer 293.

[0191] Specifically, when setting the first planarization layer 290, there may be process limitations that prevent the thickness of the single-layer design of the first planarization layer 290 from reaching the required thickness. Therefore, the first planarization layer 290 can include a first sub-layer 292 and a second sub-layer 293, so that the sum of the thicknesses of the first sub-layer 292 and the second sub-layer 293 reaches the required thickness.

[0192] In some embodiments, the first sublayer 292 and the second sublayer 293 may be made of the same material.

[0193] In some embodiments, such as Figure 6 As shown, the first planarization layer 290 includes a first sub-layer 292 and a second sub-layer 293, and at least one of the first sub-layer 292 and the second sub-layer 293 is provided with the first through-hole 33; thereby reducing the stress on the bottom film layer, reducing the stress transmitted to the bottom film layer, improving the encapsulation performance of the display panel, and improving the reliability of the display panel.

[0194] In some embodiments, the material of the first sublayer 292 is different from the material of the first light-shielding layer 291. In some embodiments, the material of the first sublayer 292 is different from the material of the second refractive index layer 282. In some embodiments, the material of the first sublayer 292 is different from the material of the second sublayer 293.

[0195] In some embodiments, under the same environmental conditions (e.g., the same humidity and temperature), the shrinkage rate of the first sublayer 292 differs from that of the first light-shielding layer 291. In some embodiments, under the same environmental conditions (e.g., the same humidity and temperature), the shrinkage rate of the first sublayer 292 differs from that of the second refractive index layer 282. In some embodiments, under the same environmental conditions (e.g., the same humidity and temperature), the shrinkage rate of the first sublayer 292 differs from that of the second sublayer 293.

[0196] In some embodiments, the first sub-layer 292 is provided with the first through hole 33; thereby reducing the internal stress between adjacent film layers, reducing the internal stress transmitted to the lower film layer, reducing the stress on the lower film layer, reducing the risk of peeling off the light-emitting material layer and the common electrode layer, thereby reducing the risk of water and oxygen intrusion, improving the encapsulation effect, and improving the reliability of the display panel.

[0197] Specifically, when the first sub-layer 292 is provided with a first through hole 33, the location of the first through hole 33 can be referred to the above embodiment, and will not be repeated here.

[0198] In some embodiments, the material of the second sublayer 293 is different from the material of the second light-shielding layer 294. In some embodiments, the material of the second sublayer 293 is different from the material of the second planarization layer 295.

[0199] In some embodiments, under the same environmental conditions (e.g., under the same humidity and temperature conditions), the shrinkage rate of the second sublayer 293 differs from that of the second light-shielding layer 294. In some embodiments, under the same environmental conditions (e.g., under the same humidity and temperature conditions), the shrinkage rate of the second sublayer 293 differs from that of the second planarization layer 295.

[0200] Specifically, when the second sub-layer 293 is provided with a first through hole 33, the location of the first through hole 33 can be referred to the above embodiment, and will not be repeated here.

[0201] Specifically, the first sub-layer 292 and the second sub-layer 293 can simultaneously form the first through hole 33. The first through hole of the first sub-layer 292 and the first through hole of the second sub-layer 293 can coincide, or the first through holes of the first sub-layer 292 and the second sub-layer 293 can not coincide.

[0202] In some embodiments, such as Figure 7 As shown, the second planarization layer 295 is provided with the first through hole 33, and the boundary of the second planarization layer 295 near the functional area 103 is located in the transition area; thereby reducing the stress on the bottom film layer, reducing the stress transmitted to the bottom film layer, improving the encapsulation performance of the display panel, and improving the reliability of the display panel.

[0203] Specifically, to achieve privacy protection, a first light-shielding layer 291 and a second light-shielding layer 294 are provided. For planarization, a second planarization layer 295 is provided. The second planarization layer 295 has a different shrinkage rate than the adjacent film layers, resulting in different deformations of the different film layers. This will create stress on the underlying inorganic layer, causing the light-emitting layer (which may be a light-emitting material layer or a light-emitting material layer and a common electrode layer) at the barrier to peel off. In this embodiment, the second planarization layer 295 is provided with a first through-hole 33. The boundary of the first through-hole 33 is located between the transition regions 104, thereby avoiding stress concentration points, preventing the light-emitting layer from peeling off, improving the encapsulation performance of the display panel, and improving the reliability of the display panel.

[0204] Specifically, when the second planarization layer 295 is provided with a first through hole 33, the location of the first through hole 33 can be referred to the above embodiment, and will not be repeated here.

[0205] In some embodiments, the distance between the boundary of the second flat layer 295 and the first retaining wall is less than or equal to the distance between the boundary of the second flat layer 295 and the display area.

[0206] In some embodiments, the distance between the boundary of the second flattening layer 295 and the first barrier is greater than the distance between the boundary of the second flattening layer 295 and the display area; thereby further avoiding stress concentration points, preventing the emissive layer from peeling off, improving the encapsulation performance of the display panel, and improving the reliability of the display panel.

[0207] In some embodiments, such as Figure 8 As shown, the shape of the first through hole 33 includes one of rectangle, square, circle, and polygon.

[0208] Specifically, the shape of the first through hole 33 can be the same as the shape of the functional area; the shape of the first through hole 33 can be the same as the shape of the outer edge of the transition area.

[0209] Specifically, such as Figure 8 As shown in (a), the first through hole 33 is circular in shape, as... Figure 8 As shown in (b) in the figure, the first through hole 33 is octagonal in shape.

[0210] In some embodiments, such as Figure 8 As shown, the shape of the second through hole 341 includes one of rectangle, square, circle, and polygon.

[0211] In some embodiments, such as Figure 8 As shown, the shape of the third through hole 342 includes one of rectangle, square, circle, and polygon.

[0212] In some embodiments, such as Figure 3 , Figures 5 to 7 , Figure 9 As shown, the first light-shielding layer 291 is disposed on the side of the second refractive index layer 282 away from the first refractive index layer 281, the first planarization layer 290 is disposed on the side of the first light-shielding layer 291 away from the second refractive index layer 282, the second light-shielding layer 294 is disposed on the side of the first planarization layer 290 away from the first light-shielding layer 291, and the second planarization layer 295 is disposed on the side of the second light-shielding layer 294 away from the first planarization layer 290.

[0213] Specifically, when the dimming function layer 28 is positioned close to the encapsulation layer 26, at least one of the second refractive index layer 282, the first planarization layer 290, and the second planarization layer 295 may have a first through-hole 33.

[0214] Specifically, when the dimming functional layer 28 is positioned close to the encapsulation layer 26, the dimming functional layer 28 is more likely to generate stress on the encapsulation layer 26 and the light-emitting layer, and the stress is relatively large. Therefore, by setting the first through hole 33 on the dimming functional layer 28, the stress on the encapsulation layer 26 and the light-emitting layer can be reduced, thereby improving the encapsulation effect.

[0215] In some embodiments, such as Figure 3 , Figure 5 As shown, the second refractive index layer 282 is provided with the first through hole 33, and the first planarization layer 290 fills the first through hole 33. The thickness H1 of the portion of the first planarization layer 290 corresponding to the first through hole 33 is greater than the width H2 of the other portions of the first planarization layer 290. This allows the first planarization layer 290 to fill the first through hole 33 of the second refractive index layer 282, and the first planarization layer 290 can fill the first through hole 33, which facilitates the formation of subsequent film layers.

[0216] In some embodiments, such as Figure 10 As shown, the first light-shielding layer 291 is disposed between the first planarization layer 290 and the substrate 21, the dimming functional layer 28 is disposed on the side of the first planarization layer 290 away from the first light-shielding layer 291, the second light-shielding layer 294 is disposed on the side of the dimming functional layer 28 away from the first planarization layer 290, and the second planarization layer 295 is disposed on the side of the second light-shielding layer 294 away from the dimming functional layer 28.

[0217] Specifically, when the dimming function layer 28 is positioned away from the encapsulation layer 26, at least one of the second refractive index layer 282, the first planarization layer 290, and the second planarization layer 295 may have a first through-hole 33.

[0218] In some embodiments, such as Figure 11As shown, the second refractive index layer 282 is provided with the first through hole 33, and the second planarization layer 295 fills the first through hole 33. The thickness H3 of the portion of the second planarization layer 295 corresponding to the first through hole 33 is greater than the width H4 of the other portions of the second planarization layer 295. This allows the second planarization layer 295 to fill the first through hole 33 of the second refractive index layer 282, and the second planarization layer 295 can fill the first through hole 33, which facilitates the formation or attachment of subsequent film layers.

[0219] Specifically, when the dimming functional layer 28 is positioned far from the encapsulation layer 26, the shrinkage rate of the dimming functional layer 28 is different from that of the adjacent film layer. This allows the dimming functional layer 28 to be provided with a first through hole 33, thereby reducing the stress on the encapsulation layer 26 and the light-emitting layer and improving the encapsulation effect.

[0220] Specifically, such as Figures 3 to 7 As shown, the display panel 1 may not have the third light-shielding layer 351, color resist layer 352, and third planarization layer 353. Figure 9 , Figure 10 As shown, the display panel can be provided with a third light-shielding layer 351, a color resist layer 352, and a third planarization layer 353.

[0221] Specifically, when the display panel is provided with a third light-shielding layer 351, the third light-shielding layer 351 may be provided with a via. The via is located at least within the functional area. The via can be referred to the second through hole setting method in the above embodiment, and will not be repeated here.

[0222] Specifically, when the display panel has a third planarization layer 353, the third planarization layer 353 can be provided with a first through hole. The method of setting the first through hole can be referred to the method of setting the first through hole in the above embodiment, and will not be repeated here.

[0223] In some embodiments, such as Figure 3 , Figure 5 , Figure 11 As shown, the second refractive index layer 282 is provided with the first through-hole 33. The boundary of the second refractive index layer 282 is located on the side of the boundary of the first light-shielding layer 291 near the functional region 103, and the boundary of the second refractive index layer 282 is located on the side of the boundary of the second light-shielding layer 294 near the functional region 103. This allows the second refractive index layer 282 to form the first through-hole 33 to reduce the risk of light-emitting layer peeling, while ensuring that the boundaries of the first light-shielding layer 291 and the second light-shielding layer 294 remain within the boundary of the dimming functional layer 28, thus still achieving the effect of preventing light leakage and improving light efficiency through the dimming functional layer 28. In some embodiments, such as Figure 2As shown, the display panel 1 includes a privacy sub-pixel 15 and a non-privacy sub-pixel 14. The first light-shielding layer 291 includes a first light-shielding part 291a, and the second light-shielding layer 294 includes a second light-shielding part 294a. The privacy sub-pixel 15 has the first light-shielding part 291a and the second light-shielding part 294a on at least two sides, and the non-privacy sub-pixel 14 does not have the second light-shielding part 294a on at least one side. The first refractive index layer 281 includes a light-transmitting opening 281a, which is correspondingly disposed with the privacy sub-pixel 15 and the non-privacy sub-pixel 14; thereby improving the transmittance of the display panel.

[0224] Specifically, such as Figure 2 As shown, in the projection on the substrate, the distance between the first light-shielding part 291a and the privacy pixel is less than or equal to the distance between the second light-shielding part 294a and the privacy pixel.

[0225] Specifically, the light-emitting material layer 253 includes a non-privacy light-emitting portion 253a corresponding to the non-privacy sub-pixels and a privacy light-emitting portion 253b corresponding to the privacy sub-pixels. The non-privacy light-emitting portion 253a includes light-emitting portions corresponding to the first non-privacy sub-pixel 111, the second non-privacy sub-pixel 112, and the third non-privacy sub-pixel 113, and the privacy light-emitting portion 253b includes light-emitting portions corresponding to the first privacy sub-pixel 121, the second privacy sub-pixel 122, and the third privacy sub-pixel 123. The light-transmitting opening 281a is correspondingly provided with the non-privacy light-emitting portion 253a and the privacy light-emitting portion 253b.

[0226] Specifically, the above embodiments are illustrated by taking the formation of a first, second, or third through-hole in each film layer as an example. It can be understood that multiple film layers can form through-holes, for example, the second refractive index layer and the first planarization layer can form through-holes at the same time. The boundaries of the through-holes may overlap or not overlap, which will not be elaborated here.

[0227] Specifically, in the embodiments of this application, the presence of a through-hole in a certain film layer means that the portion of the film layer located in the through-hole area is removed (or etched) during the fabrication process. For example, if the second refractive index layer 282 has a first through-hole 33 and the boundary of the first through-hole 33 is located in the transition region, it means that the portion of the second refractive index layer 282 located in the functional region is removed, and the portion of the second refractive index layer 282 located in the transition region corresponding to the first through-hole 33 is removed. Similarly, the meaning of having through-holes in other film layers can be determined, which will not be elaborated here.

[0228] Specifically, the design of the functional area is not limited in this application embodiment. For example, some film layers in the driving circuit layer may be removed from the functional area, or all film layers from the second planarization layer to the buffer layer may be removed from the functional area; or all film layers from the second planarization layer to the substrate may be removed from the functional area.

[0229] Specifically, the above embodiments describe the display panel in detail from aspects such as the area division, film layer design, and pixel arrangement. It is understood that when there is no conflict between the embodiments, the embodiments can be combined. For example, the second refractive index layer is provided with the first through hole, and the first planarization layer is provided with the first through hole.

[0230] Meanwhile, this application provides a display device, which includes a display panel as described in any of the above embodiments.

[0231] Specifically, the display device also includes functional elements, which are located within the functional area.

[0232] Specifically, the display device also includes a power supply, a housing, and other structures.

[0233] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0234] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0235] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0236] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A display panel, characterized in that, The display panel includes a display area, a functional area, and a transition area, with the transition area disposed between the display area and the functional area. The display panel includes a substrate and a dimming functional layer, a first light-shielding layer, a first planarization layer, a second light-shielding layer, and a second planarization layer disposed on one side of the substrate. The dimming functional layer includes a first refractive index layer and a second refractive index layer. The first refractive index layer is disposed between the substrate and the second refractive index layer, and the refractive index of the first refractive index layer is less than that of the second refractive index layer. In this embodiment, at least one of the second refractive index layer, the first planarization layer, and the second planarization layer is provided with a first through hole, the first through hole is disposed in the functional area and the transition area, and the boundary of the first through hole is located within the transition area.

2. The display panel according to claim 1, characterized in that, The display panel further includes an isolation pillar, which has an undercut structure and is disposed within the transition area. The boundary of the first through hole is located between the isolation pillar and the display area.

3. The display panel according to claim 2, characterized in that, The isolation pillar includes a first isolation pillar and a second isolation pillar. The first isolation pillar is disposed between the second isolation pillar and the display area, and the boundary of the first through hole is located between the first isolation pillar and the display area.

4. The display panel according to claim 2, characterized in that, The display panel further includes a retaining wall disposed within the transition area, the retaining wall being located between the isolation column and the display area, and the boundary of the first through hole being located between the retaining wall and the display area.

5. The display panel according to claim 4, characterized in that, The retaining wall includes a first retaining wall and a second retaining wall, the first retaining wall being disposed between the second retaining wall and the display area, and the boundary of the first through hole being located between the first retaining wall and the display area.

6. The display panel according to claim 4, characterized in that, The second refractive index layer is provided with the first through hole, and the boundary of the second refractive index layer near the functional area is located between the barrier and the display area.

7. The display panel according to claim 4, characterized in that, The first light-shielding layer is provided with a second through hole, which is disposed in the functional area and the transition area, and the boundary of the second through hole is located on the side of the barrier wall closer to the display area.

8. The display panel according to claim 4, characterized in that, The second light-shielding layer is provided with a third through hole, which is disposed in the functional area and the transition area, and the boundary of the third through hole is located on the side of the barrier wall closer to the display area.

9. The display panel according to claim 1, characterized in that, The display panel further includes an isolation pillar, which has an undercut structure and is disposed within the transition area. The boundary of the first through hole is located between the isolation pillar and the functional area.

10. The display panel according to claim 1, characterized in that, The first planarization layer is provided with the first through hole, and the boundary of the first planarization layer near the functional area is located within the transition area.

11. The display panel according to claim 10, characterized in that, The first planarization layer includes a first sublayer and a second sublayer, and at least one of the first sublayer and the second sublayer is provided with the first through-hole.

12. The display panel according to claim 1, characterized in that, The second planarization layer is provided with the first through hole, and the boundary of the second planarization layer near the functional area is located within the transition area.

13. The display panel according to claim 1, characterized in that, The shape of the first through hole includes one of rectangle, square, circle, and polygon.

14. The display panel according to claim 1, characterized in that, The first light-shielding layer is disposed on the side of the second refractive index layer away from the first refractive index layer; the first planarization layer is disposed on the side of the first light-shielding layer away from the second refractive index layer; the second light-shielding layer is disposed on the side of the first planarization layer away from the first light-shielding layer; the second planarization layer is disposed on the side of the second light-shielding layer away from the first planarization layer; The second refractive index layer is provided with the first through hole, the first planarization layer is filled in the first through hole, and the thickness of the portion of the first planarization layer corresponding to the first through hole is greater than the width of other portions of the first planarization layer.

15. The display panel according to claim 1, characterized in that, The first light-shielding layer is disposed between the first planarization layer and the substrate, the dimming functional layer is disposed on the side of the first planarization layer away from the first light-shielding layer, the second light-shielding layer is disposed on the side of the dimming functional layer away from the first planarization layer, and the second planarization layer is disposed on the side of the second light-shielding layer away from the dimming functional layer. The second refractive index layer is provided with the first through hole, and the second planarization layer fills the first through hole. The thickness of the portion of the second planarization layer corresponding to the first through hole is greater than the width of the other portions of the second planarization layer.

16. The display panel according to claim 1, characterized in that, The second refractive index layer is provided with the first through hole, and the boundary of the second refractive index layer is located on the side of the boundary of the first light-shielding layer near the functional area.

17. The display panel according to any one of claims 1 to 16, characterized in that, The display panel includes privacy sub-pixels and non-privacy sub-pixels. The first light-shielding layer includes a first light-shielding portion, and the second light-shielding layer includes a second light-shielding portion. The privacy sub-pixels are provided with the first light-shielding portion and the second light-shielding portion on at least two sides, and the non-privacy sub-pixels are not provided with the second light-shielding portion on at least one side. The first refractive index layer includes a light-transmitting opening, which is correspondingly configured with the privacy sub-pixel and the non-privacy sub-pixel.

18. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 17.

Images