A display panel and display device

Abstract

The present disclosure relates to the technical field of display, and particularly relates to a display panel and a display device. The display panel comprises a substrate, and a display layer, an encapsulation layer, a peep-proof layer, a planarization layer and a filter layer located on one side of the substrate. A plurality of sub-pixels in the display layer comprises a peep-proof sub-pixel, and a light emitting device in the peep-proof sub-pixel is a first light emitting device. The encapsulation layer covers the light emitting device, and the encapsulation layer comprises an organic encapsulation sub-layer. The peep-proof layer comprises a first light shielding part, and a normal projection of the first light shielding part on the display layer at least partially surrounds the first light emitting device. The planarization layer comprises an adjacent flat part and an edge part, the flat part covers a display area, and the edge part is located in a non-display area. The filter layer comprises a color resistance and a second light shielding part, a normal projection of the color resistance on the display layer overlaps with the light emitting device, and a normal projection of the second light shielding part on the display layer at least partially surrounds the light emitting device. The display panel provided by the present disclosure can improve the display effect while taking into account the peep-proof effect.

Description

Technical Field

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

[0002] With the widespread adoption of display technology and increased awareness of personal privacy, the demand for display devices with privacy features is growing. However, current privacy display structures still need further optimization to meet higher usage requirements. Summary of the Invention

[0003] To address the aforementioned technical problems, this disclosure provides a display panel and a display device.

[0004] In a first aspect, this disclosure provides a display panel. The display panel includes a display area and a non-display area, the non-display area at least partially surrounding the display area. The display panel further includes: a substrate, and a display layer, an encapsulation layer, a privacy shield layer, a planarization layer, and a light filter layer located on one side of the substrate. The display layer is located on one side of the substrate and includes a plurality of sub-pixels, each sub-pixel including a light-emitting device. The plurality of sub-pixels include a privacy shield sub-pixel, the light-emitting device in the privacy shield sub-pixel being a first light-emitting device. The encapsulation layer is located on the side of the display layer away from the substrate, the encapsulation layer covers the light-emitting device, and the encapsulation layer includes an organic encapsulation sublayer. The privacy shield layer is located on the side of the encapsulation layer away from the substrate, the privacy shield layer includes a first light-shielding portion, the orthographic projection of the first light-shielding portion on the display layer at least partially surrounding the first light-emitting device. The planarization layer is located on the side of the privacy shield layer away from the substrate, the planarization layer includes an adjacent planar portion and an edge portion, the surface of the planar portion on the side away from the substrate is a flat surface parallel to the substrate, the planar portion covers the display area, and the edge portion is located in the non-display area. The filter layer is located on the side of the planarization layer away from the substrate. The filter layer includes a color resist and a second light-shielding part. The orthographic projection of the color resist on the display layer overlaps with the light-emitting device. The orthographic projection of the second light-shielding part on the display layer at least partially surrounds the light-emitting device.

[0005] Secondly, this disclosure provides a display device. The display device includes the display panel provided in any of the first aspects.

[0006] Compared with the prior art, the technical solution provided in this disclosure has the following advantages: The display panel provided in this disclosure adjusts the film structure, moving the privacy shield layer, originally located on the side of the filter layer away from the substrate, to the side of the filter layer closer to the substrate. The planarization layer, originally located on the side of the privacy shield layer away from the substrate, is moved to the space between the filter layer and the privacy shield layer, and the planarization layer is expanded outwards. The orthographic projection of the planarized portion of the planarization layer onto the display layer at least covers the display area, while the orthographic projection of the edge portion of the planarization layer onto the display layer is located in the non-display area. The planarized portion, through the leveling effect of its own material, fills the slope formed between the edge organic encapsulation sub-parts and the central organic encapsulation sub-parts in the underlying organic encapsulation sub-layer, and forms a flat surface after curing, thereby improving the abnormal color resist coating and edge mura defects caused by uneven film thickness at the boundary of the display area. Although the position of the privacy layer has changed, its blocking effect on large-angle light may change slightly. However, since the filter layer is still located on the side of the privacy layer away from the substrate, and the orthogonal projection of the second light-shielding part in the filter layer on the display layer at least partially surrounds the light-emitting device, the second light-shielding part can still block the large-angle light, thus meeting the usage requirements of the display panel in privacy mode. Attached Figure Description

[0007] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0008] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present disclosure; Figure 2 A cross-sectional view of a display panel provided for the prior art; Figure 3 A cross-sectional view of a display panel provided in an embodiment of this disclosure; Figure 4 A cross-sectional view of another display panel provided in an embodiment of this disclosure; Figure 5 A cross-sectional view of yet another display panel provided in an embodiment of this disclosure; Figure 6 A cross-sectional view of yet another display panel provided in an embodiment of this disclosure; Figure 7 A cross-sectional view of yet another display panel provided in an embodiment of this disclosure; Figure 8 A cross-sectional view of yet another display panel provided in an embodiment of this disclosure; Figure 9 This is a schematic diagram of the structure of a display device provided in an embodiment of the present disclosure. Detailed Implementation

[0010] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0011] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0012] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present disclosure. Figure 2 This is a cross-sectional view of a display panel provided in the prior art. The structural diagram of the corresponding display panel in the prior art is... Figure 1 Consistent, can be used as a reference Figure 1 As shown.

[0013] Combination Figure 1 and Figure 2 As shown, the display panel 100' has a display area AA and a non-display area SA, with the non-display area SA at least surrounding a portion of the display area AA. For example, the non-display area SA may be located on at least one side of the display area AA (e.g., one side; or, all around, including the top and bottom sides and the left and right sides).

[0014] The display panel 100' also includes a substrate 10, and a display layer 20, an encapsulation layer 30, a light filter layer 60, a planarization layer 50 and a privacy shield layer 40 located on one side of the substrate 10.

[0015] The display layer 20 is located on one side of the substrate 10. The display layer 20 includes a plurality of sub-pixels P, which are located in the display area AA.

[0016] The encapsulation layer 30 is located on the side of the display layer 20 away from the substrate 10, and the encapsulation layer 30 includes an organic encapsulation sublayer 31.

[0017] To achieve a thinner and more colorful design, the display panel 100' employs CFOT (Color Filter on Thin Film Encapsulation) technology, with the filter layer 60 disposed on the side of the encapsulation layer 30 away from the substrate 10. The filter layer 60 includes a color resist 61 and a second light-shielding portion 62. The color resist 61, when projected onto the display layer 20, overlaps with the light-emitting device E, and the second light-shielding portion 62, when projected onto the display layer 20, at least partially surrounds the light-emitting device E.

[0018] To achieve the privacy protection function, multiple sub-pixels P located within the display area AA can be divided into privacy sub-pixels P1 and shared sub-pixels P2. Correspondingly, the light-emitting device E in the privacy sub-pixel P1 can be referred to as the first light-emitting device E1, and the light-emitting device E in the shared sub-pixel P2 can be referred to as the second light-emitting device E2. The display panel 100' also includes a privacy layer 40, which is located on the side of the light filter layer 60 away from the substrate 10. The privacy layer 40 includes a first light-shielding portion 41, the orthographic projection of which on the display layer 20 at least partially surrounds the first light-emitting device E1. For example, the orthographic projection of which on the display layer 20 surrounds the first light-emitting device E1.

[0019] Based on this, the first light-shielding part 41 can block the large-angle light emitted by the first light-emitting device E1, and only allow the small-angle light to be emitted, thereby achieving privacy protection.

[0020] Furthermore, in this embodiment, a planarization layer 50 is provided between the privacy layer 40 and the filter layer 60. By providing the planarization layer 50, the optical distance between the privacy layer 40 and the display layer 20 is increased, so that the first light-shielding part 41 can block light from a wider range of angles, thereby further reducing the privacy viewing angle and optimizing the privacy effect.

[0021] However, the inventors of this disclosure have discovered that the display panel 100' with the above-described structure suffers from display unevenness (mura) in practical applications, which is particularly noticeable at the boundary of the display area AA. Analysis reveals that this problem primarily stems from the fabrication process of the encapsulation layer 30: the organic encapsulation sublayer 31 is typically formed using inkjet printing (IJP) technology. Due to the inherent morphological characteristics of the IJP process, the organic encapsulation sublayer 31 at the boundary of the display area AA exhibits an edge shrinkage effect, resulting in a thickness less than that in the center of the display area AA. Specifically, the organic encapsulation sublayer 31 includes an edge organic encapsulation sub-part 311 and a central organic encapsulation sub-part 312, with the edge organic encapsulation sub-part 311 being closer to the boundary of the display area AA than the central organic encapsulation sub-part 312.

[0022] The edge organic encapsulation sub-section 311 is a thinned area formed due to process characteristics when the organic encapsulation sub-layer 31 is prepared using inkjet printing (IJP) technology. Correspondingly, the central organic encapsulation sub-section 312 is the area in the organic encapsulation sub-layer 31 that is relatively far from the boundary of the display area AA and is not significantly affected by the inkjet printing edge effect. Along the direction Z perpendicular to the plane of the substrate 10, the thickness of the edge organic encapsulation sub-section 311 is less than the thickness of the central organic encapsulation sub-section 312. Therefore, the minimum distance between the surface of the edge organic encapsulation sub-section 311 away from the substrate 10 and the substrate 10 is less than the minimum distance between the surface of the central organic encapsulation sub-section 312 away from the substrate 10 and the substrate 10, so that the edge organic encapsulation sub-section 311 forms a slope towards the substrate 10 relative to the central organic encapsulation sub-section 312.

[0023] This slope causes the material of the subsequently coated filter layer 60 to flow more freely at the boundary of the display area AA. Simultaneously, the second light-shielding portion 62, located around the color resist 61, is too low to effectively block the flow of the color resist material, and its thickness at the boundary also tends to decrease, correspondingly reducing the area capable of blocking light. The reduced thickness of the second light-shielding portion 62 at the boundary leads to a decrease in its light-blocking ability, while the reduced thickness of the color resist 61 at the boundary leads to an increase in light transmittance. The combined thinning of the second light-shielding portion 62 and the color resist 61 at the boundary results in higher light transmittance and brightness at the edge of the display area AA, thus creating an edge display unevenness (Mura) defect.

[0024] It should be noted that the boundary of the display area AA can be understood as the boundary between the display area AA and the non-display area SA. Furthermore, the film thickness of the organic encapsulation sublayer 31 refers to the average thickness, ignoring special parts such as the pixel definition layer in the filled display layer 20.

[0025] In view of this, embodiments of the present disclosure provide a display panel designed to improve the Mura problem caused by uneven edge film thickness. Figure 3 This is a cross-sectional view of a display panel provided in an embodiment of the present disclosure.

[0026] Combination Figure 1 and Figure 3 As shown, the display panel 100 provided in this embodiment includes: a substrate 10, and a display layer 20, an encapsulation layer 30, a privacy shield layer 40, a planarization layer 50, and a filter layer 60 located on one side of the substrate 10.

[0027] For example, substrate 10 can be a flexible substrate or a rigid substrate. The rigid substrate can be made of glass, and the flexible substrate can be made of polyimide (PI).

[0028] The substrate 10 can be a single-layer structure or a multi-layer structure. For example, if the substrate 10 is a multi-layer structure, it can include a base and a buffer layer disposed on the base. The material of the buffer layer can include silicon oxide or silicon nitride. The embodiments of this disclosure do not specifically limit the material and structure of the substrate 10.

[0029] The display layer 20 is located on one side of the substrate 10. The display layer 20 includes a plurality of sub-pixels P, which are located in the display area AA. The display panel 100 can display a predetermined image in the display area AA by means of light emitted by the plurality of sub-pixels P.

[0030] Specifically, the multiple sub-pixels P may include multiple sub-pixels that emit different colors. For example, the multiple sub-pixels P include a first sub-pixel, a second sub-pixel, and a third sub-pixel. The first sub-pixel, the second sub-pixel, and the third sub-pixel emit three primary colors of light respectively. For example, the first sub-pixel may emit red light, the second sub-pixel may emit green light, and the third sub-pixel may emit blue light.

[0031] A sub-pixel P may include a light-emitting device E and a pixel driving circuit M coupled to the light-emitting device E.

[0032] The light-emitting device E can be one of organic light-emitting diodes (OLEDs), quantum dot light-emitting diodes (QLEDs), light-emitting diodes (LEDs), and liquid crystal light-emitting devices, but is not limited to these. The embodiments of this disclosure do not limit the type of light-emitting device; that is, the light-emitting device E can be any other light-emitting device (e.g., a light-emitting device that emits light through discharge), as long as it can emit light so that the display panel 100 can display an image.

[0033] The pixel driving circuit M can be configured to provide an electrical signal (e.g., driving voltage or driving current) to the light-emitting device E coupled to the pixel driving circuit M in response to the received scan signal and data signal, so as to drive the light-emitting device E to emit light, thereby enabling the display panel 100 to display an image.

[0034] The pixel driving circuit M may include multiple transistors and at least one (e.g., one; or multiple) capacitor. For example, the pixel driving circuit M may be a structure such as "2T1C", "6T1C", "7T1C", "6T2C", or "7T2C". Here, "T" represents a transistor, such as a thin-film transistor. The number preceding "T" indicates the number of transistors. "C" represents a capacitor, and the number preceding "C" indicates the number of capacitors.

[0035] The encapsulation layer 30 (Thin Film Encapsulation, TFE) is located on the side of the display layer 20 away from the substrate 10. The encapsulation layer 30 covers all the light-emitting devices E located in the display area AA. The encapsulation layer 30 is used to protect the light-emitting devices E from external moisture and oxygen corrosion, and plays a role in encapsulation and protection.

[0036] The encapsulation layer 30 includes at least an organic encapsulation sublayer 31, the material of which includes, but is not limited to, polyimide, so that the organic encapsulation sublayer 31 has high temperature resistance and good insulation.

[0037] For example, the organic encapsulation sublayer 31 is an inkjet printing layer, and the organic encapsulation sublayer 31 includes an edge organic encapsulation sub-part 311 and a center organic encapsulation sub-part 312.

[0038] To achieve the privacy protection function, multiple sub-pixels P located within the display area AA can be divided into privacy sub-pixels P1 and shared sub-pixels P2. Accordingly, the light-emitting device E in the privacy sub-pixel P1 can be called the first light-emitting device E1, and the light-emitting device E in the shared sub-pixel P2 can be called the second light-emitting device E2.

[0039] The privacy layer 40 is located on the side of the encapsulation layer 30 away from the substrate 10. The privacy layer 40 includes a first light-shielding portion 41. The orthogonal projection of the first light-shielding portion 41 on the display layer 20 at least partially surrounds the first light-emitting device E1.

[0040] For example, the orthographic projection of the first light-shielding portion 41 on the display layer 20 is arranged around the first light-emitting device E1.

[0041] For example, the orthographic projection of the privacy layer 40 onto the display layer 20 does not overlap with the shared sub-pixels. In other words, the first light-shielding part 41 is only provided for the first light-emitting device E1, and the first light-shielding part 41 is not provided around the second light-emitting device E2.

[0042] Based on this, due to the blocking effect of the first light-shielding part 41, the large-angle light emitted by the first light-emitting device E1 is blocked, and only small-angle light (i.e. light that is approximately perpendicular to the light-emitting surface of the display panel) is allowed to be emitted, thereby achieving the privacy protection effect; while the second light-emitting device E2 is not covered by the first light-shielding part 41, and the light emitted by it (including large-angle light) can be emitted normally, thereby achieving wide-viewing angle display or wide-viewing angle information sharing.

[0043] The planarization layer 50 is located on the side of the privacy layer 40 away from the substrate 10. The planarization layer 50 includes an adjacent planar portion 51 and an edge portion 52. The surface of the planar portion 51 on the side away from the substrate 10 is a flat surface parallel to the substrate 10. The planar portion 51 covers the display area AA, and the edge portion 52 is located in the non-display area SA.

[0044] Understandably, by extending the planarization layer 50, the orthographic projection of the planar portion 51 onto the display layer 20 completely covers the display area AA, while the orthographic projection of the edge portion 52 onto the display layer 20 shifts to the non-display area SA. The planar portion 51 can fill the slope formed between the edge organic encapsulation sub-part 311 and the central organic encapsulation sub-part 312 in the underlying organic encapsulation sub-layer 31, providing a flat support surface for the filter layer 60 located thereon, thereby improving the uneven film thickness of the color resist 61 and edge Mura defects caused by the slope.

[0045] It should be noted that the "flat surface" mentioned in this article refers to a region in the film layer that is designated as the flat surface, where the difference between the minimum distance between any two points on the surface away from the substrate and the plane where the substrate is located is less than or equal to a preset threshold (e.g., less than or equal to 5% of the average thickness of the film layer). In other words, this region has no visible slope, no local depressions or protrusions on a macroscopic scale, and can provide a highly consistent support reference for subsequent film layers.

[0046] For example, the surface of the planarization layer 50 defined as the flat portion 51, on the side away from the substrate 10, is the aforementioned flat surface. That is, the minimum distance between any position of the flat portion 51 on the side away from the substrate 10 and the substrate 10 satisfies the aforementioned flatness requirement. In contrast, the surface of the planarization layer 50 defined as the edge portion 52 on the side away from the substrate 10 does not constitute the flat surface described herein.

[0047] The filter layer 60 is located on the side of the planarization layer 50 away from the substrate 10, and the filter layer 60 includes a color resist 61 and a second light-shielding portion 62.

[0048] In this design, the color resist 61 overlaps with the light-emitting device E in its orthogonal projection onto the display layer 20, thereby filtering the light emitted by the light-emitting device E to improve color purity. For example, the color resist 61 corresponds one-to-one with the light-emitting device E, and the orthogonal projection of the color resist 61 onto the display layer 20 covers the light-emitting device E, so that the light emitted by the light-emitting device E is emitted after being filtered by the corresponding color resist 61, thus improving the display effect of the display panel 100.

[0049] The second light-shielding portion 62, in its orthographic projection on the display layer 20, at least partially surrounds the light-emitting device E, thereby reducing light crosstalk between adjacent sub-pixels. For example, the second light-shielding portion 62 is disposed around the color resist 61, and its orthographic projection on the display layer 20 surrounds the light-emitting device E. The second light-shielding portion 62 reduces crosstalk between light emitted from adjacent sub-pixels, improving the display effect of the display panel 100.

[0050] Furthermore, the orthographic projection of the second light-shielding part 62 on the display layer 20 overlaps with that of the first light-shielding part 41, and both orthographic projections on the display layer 20 are arranged around the first light-emitting device E1. Based on this, the second light-shielding part 62 can cooperate with the first light-shielding part 41 to provide secondary blocking of large-angle light emitted from the first light-emitting device E1 and leaking from the edge of the first light-shielding part 41, thereby further optimizing the privacy protection effect.

[0051] The filter layer 60 is formed on the flat surface of the flat portion 51 in the planarization layer 50. Utilizing the high uniformity provided by this flat surface, the filter layer 60 material tends to spread evenly during coating, mitigating localized flow differences caused by the slope of the underlying organic encapsulation sublayer 31. Furthermore, the color resist 61 and the second light-shielding portion 62 exhibit uniform film thickness distribution within the display area AA, especially near the boundary, which helps to improve transmittance differences and edge brightening caused by film thickness fluctuations.

[0052] Based on this, the display panel 100 provided in this embodiment adjusts the film structure. The privacy layer 40, originally located on the side of the filter layer 60 away from the substrate 10, is moved to the side of the filter layer 60 closer to the substrate 10. The planarization layer 50, originally located on the side of the privacy layer 40 away from the substrate 10, is moved between the filter layer 60 and the privacy layer 40, and the planarization layer 50 is expanded outward. The orthographic projection of the planar portion 51 of the planarization layer 50 onto the display layer 20 at least covers the display area AA, and the orthographic projection of the edge portion 52 of the planarization layer 50 onto the display layer 20 is located in the non-display area SA. The planar portion 51 fills the slope formed between the edge organic encapsulation sub-part 311 and the central organic encapsulation sub-part 312 in the underlying organic encapsulation sub-layer 31 through the leveling effect of its own material, and forms a flat surface after curing, thereby improving the abnormal coating of the color resist 61 and edge Mura defects caused by uneven film thickness at the boundary of the display area AA. Although the position of the privacy layer 40 changes, its blocking effect on large-angle light may change slightly. However, since the filter layer 60 is still located on the side of the privacy layer 40 away from the substrate 10, and the orthogonal projection of the second light-shielding part 62 in the filter layer 60 on the display layer 20 at least partially surrounds the light-emitting device E, the second light-shielding part 62 can still block the large-angle light, thus meeting the usage requirements of the display panel 100 in privacy mode.

[0053] In summary, the display panel 100 provided in this embodiment of the present disclosure, by simply adjusting the stacking order of the film layers and expanding the planarization layer 50, effectively improves the Mura problem at the boundary of the display area AA without increasing the process, and also takes into account the privacy protection effect of the display panel 100 by utilizing the cooperation of the second light-shielding part 62 in the filter layer 60 and the first light-shielding part 41 in the privacy layer 40.

[0054] like Figure 3 As shown, in some embodiments, the planarization layer 50 is prepared using the IJP process and is an inkjet printing layer.

[0055] Based on this, the film formation process of the planarization layer 50 has leveling characteristics. The planar portion 51 can fill the slope formed between the edge organic encapsulation sub-part 311 and the center organic encapsulation sub-part 312 in the underlying organic encapsulation sub-layer 31 through the flowability of its own material, and form a flat surface after curing.

[0056] In some examples, the thickness of the planarization layer 50 is greater than or equal to 15 μm along the direction Z perpendicular to the plane of the substrate 10.

[0057] Based on this, the planarization layer 50 is thicker, which increases the minimum distance between the privacy layer 40 and the filter layer 60, and increases the optical distance between the second light-shielding part 62 in the filter layer 60 and the display layer 20. This is beneficial for the first light-shielding part 41 and the second light-shielding part 62 to block light at a larger angle, further narrowing the privacy viewing angle and optimizing the privacy effect.

[0058] For example, the thickness of the planarization layer 50 can be any one of 15 μm, 16 μm, 18 μm, or 20 μm. However, the thickness of the planarization layer 50 is not limited to this in the embodiments of this disclosure, and can be adjusted according to actual conditions.

[0059] In some examples, the minimum distance between the boundary of the flat portion 51 and the boundary of the display area AA in the direction from the display area AA to the non-display area SA is greater than or equal to 0.1 mm. In other words, the flat portion 51 needs to extend outward from the display area AA by at least 0.1 mm.

[0060] Based on this, it can be ensured that the flat portion 51 can completely cover the organic encapsulation sublayer 31 to fill the slope formed between the middle edge organic encapsulation sublayer 311 and the central organic encapsulation sublayer 312, thereby providing a flat support surface for the filter layer 60.

[0061] For example, along the direction from the display area AA to the non-display area SA, the minimum distance between the boundary of the flat portion 51 and the boundary of the display area AA is greater than or equal to 0.5 mm. In other words, the flat portion 51 needs to extend outward from the display area AA by at least 0.5 mm.

[0062] It should be noted that, since the planarization layer 50 is prepared using inkjet printing, a dog-ear structure may form on the edge 52 near the planarization layer 51. The formation mechanism of this dog-ear structure is that the liquid material in the edge printing area has adjacent material on only one side. During the curing process, the volume shrinkage rates on both sides are inconsistent, leading to edge warping. This dog-ear structure is part of the edge 52. Therefore, the boundary between the planarization layer 51 and the edge 52 can be defined by the boundary of this dog-ear structure near the display area. The aforementioned dog-ear phenomenon can be improved through edge compensation processes in inkjet printing. When there is no dog-ear structure on the edge 52, the boundary between the planarization layer 51 and the edge 52 can be the location where the thickness of the planarization layer 50 begins to thin.

[0063] like Figure 3 As shown, in some embodiments, the thickness of the color resist 61 near the non-display area SA is equal to the thickness of the color resist 61 away from the non-display area SA.

[0064] It is understandable that, since the flat portion 51 of the planarization layer 50 provides a flat support surface for the filter layer 60, the thickness of the color resist 61 near the non-display area SA is equal to the thickness of the color resist 61 far from the non-display area SA.

[0065] Based on this, the thickness of each color resist 61 in the filter layer 60 can be made more uniform, ensuring that the transmittance of each color resist 61 is approximately equal, thereby further improving the brightness uniformity and reducing the edge Mura phenomenon.

[0066] like Figure 3 As shown, in some embodiments, the orthographic projection of the flat portion 51 onto the encapsulation layer 30 covers the organic encapsulation sublayer 31.

[0067] Based on this, the flat portion 51 can fill the slope formed between the edge organic encapsulation sub-part 311 and the central organic encapsulation sub-part 312 in the organic encapsulation sub-layer 31, providing a flat surface for the upper filter layer 60, improving the problem of edge thinning of the color resist 61 in the display area AA, thereby alleviating the edge Mura phenomenon.

[0068] In some examples, the boundary of the orthographic projection of the flat portion 51 onto the encapsulation layer 30 coincides with the boundary of the organic encapsulation sublayer 31.

[0069] In other examples, the organic encapsulation sublayer 31 lies within the boundary of the orthographic projection of the flat portion 51 onto the encapsulation layer 30.

[0070] Based on this, regardless of whether the boundary of the organic encapsulation sublayer 31 coincides with the orthographic projection boundary of the flat portion 51 or falls completely within the orthographic projection range of the flat portion 51, the flat portion 51 can completely cover the organic encapsulation sublayer 31, ensuring that the slope formed between the edge organic encapsulation sublayer 311 and the center organic encapsulation sublayer 312 within the display area AA is fully filled, thereby providing a flat support surface for the filter layer 60.

[0071] like Figure 3 As shown, in some embodiments, the encapsulation layer 30 may further include at least one inorganic encapsulation sublayer, that is, the encapsulation layer 30 may include one, two or more inorganic encapsulation sublayers, so that the encapsulation layer 30 can be a multi-film stacked structure.

[0072] For example, in the direction Z perpendicular to the plane of the substrate 10, the inorganic encapsulation sublayer of the encapsulation layer 30 may include a first inorganic encapsulation sublayer 32 and a second inorganic encapsulation sublayer 33 located on opposite sides of the organic encapsulation sublayer 31, such that the encapsulation layer 30 forms an inorganic... organic Inorganic layered structure.

[0073] The inorganic encapsulation sublayer prevents water or mist from entering the interior of the display panel 100 and eroding the device structure in the display layer 20; the organic encapsulation sublayer 31 can absorb impurities and other particulate matter, preventing particulate matter from entering the interior of the display panel 100 and causing short circuits or open circuits between devices.

[0074] Based on this, forming an encapsulation layer 30 covering the display layer 20 on the side of the display layer 20 away from the substrate 10 can help extend the service life of the display panel 100.

[0075] like Figure 3 As shown, in some embodiments, the display panel 100 further includes at least one first barrier PS1 located in the non-display area SA, and the boundary of the organic encapsulation sublayer 31 is located on the side of at least a portion of the first barrier PS1 close to the display area AA.

[0076] The non-display area SA is provided with at least one first barrier PS1, that is, one or more first barrier PS1s can be provided in the non-display area SA.

[0077] The present disclosure does not specify the number of first barrier PS1s; the number of first barrier PS1s can be designed according to actual needs. For example, one first barrier PS1 can be provided in the non-display area SA.

[0078] Because the organic encapsulation sublayer 31 has poor density, it can act as a transport path for water and oxygen. Furthermore, the organic materials used to fabricate the organic encapsulation sublayer 31 typically have a certain degree of fluidity. Therefore, during the fabrication of the organic encapsulation sublayer 31, a first barrier PS1 needs to be installed to prevent the material of the organic encapsulation sublayer 31 from flowing further towards the edge of the non-display area SA. This ensures that the edge of the organic encapsulation sublayer 31 is stopped at least by one of the first barrier PS1s near the display area AA, preventing the organic encapsulation sublayer 31 from forming at the edge of the non-display area SA and becoming a transport channel for water and oxygen to enter the display area AA, thus affecting the lifespan of the devices in the display area AA.

[0079] Figure 4 A cross-sectional view of another display panel provided in an embodiment of this disclosure.

[0080] like Figure 4 As shown, in some embodiments, the display panel 100 further includes at least one second barrier PS2 located in the non-display area SA, the second barrier PS2 being located on the side of the first barrier PS1 away from the display area AA. The boundary of the planarization layer 50 is located on at least a portion of the second barrier PS2 on the side closer to the display area AA.

[0081] The non-display area SA is equipped with at least one second barrier PS2, meaning that one or more second barrier PS2s can be set in the non-display area SA.

[0082] The embodiments disclosed herein do not specifically limit the number of second barrier PS2s; the number of second barrier PS2s can be designed according to actual needs. For example, one second barrier PS2 can be provided in the non-display area SA.

[0083] Understandably, the boundary of the organic encapsulation sublayer 31 is located on at least part of the first barrier PS1 near the display area AA, and the organic encapsulation sublayer 31 will terminate at the position of the first barrier PS1. Therefore, the organic encapsulation sublayer 31 will form a slope as described above near the position of the first barrier PS1. Since the organic material used in the planarization layer 50 usually has a certain degree of fluidity, during the fabrication process, the boundary of the planarization layer 50 is prone to over-diffusion beyond the first barrier PS1 and continue to the outside of the non-display area SA, resulting in the planarization portion 51 not completely covering the slope.

[0084] Based on this, a second barrier PS2 can be provided on the side of the first barrier PS1 away from the display area AA. The second barrier PS2 can limit the boundary of the planarization layer 50, improve the problem of excessive diffusion of the planarization layer 50 into the non-display area SA, so that the boundary of the planarization layer 50 ends at the side of the second barrier PS2 near the display area AA after crossing the first barrier PS1. The coverage of the flat portion 51 of the planarization layer 50 extends between the first barrier PS1 and the second barrier PS2, thereby completely covering the slope formed by the organic encapsulation sublayer 31 near the first barrier PS1, providing a flat support base for the upper film layer (e.g., the filter layer), and improving the display uniformity and reliability of the display panel 100.

[0085] The preceding text mainly introduced the use of a second barrier PS2 to limit the boundary of the planarization layer 50, thereby improving the problem of excessive diffusion of the planarization layer 50 into the non-display area SA. In addition to the above solution, this disclosure also provides another limiting method, the structure and function of the limiting groove W will be described in detail below with reference to the accompanying drawings.

[0086] Figure 5 A cross-sectional view of another display panel provided in an embodiment of this disclosure.

[0087] like Figure 5 As shown, in some embodiments, the display panel 100 further includes at least one limiting groove W located in the non-display area SA. The limiting groove W may be located on the side of the first barrier PS1 away from the display area AA1, and the boundary of the planarization layer 50 is located on the side of the groove wall of the limiting groove W close to the display area AA.

[0088] With this configuration, the limiting groove W can limit the boundary of the planarization layer 50, improving the problem of excessive diffusion of the planarization layer 50 into the non-display area SA. This ensures that the boundary of the planarization layer 50 ends at the side of the groove wall of the limiting groove W near the display area AA after crossing the first barrier PS1. The coverage area of ​​the flat portion 51 of the planarization layer 50 extends to the space between the first barrier PS1 and the limiting groove W, thereby completely covering the slope formed by the organic encapsulation sublayer 31 near the first barrier PS1. This provides a flat support base for the upper film layer (e.g., the filter layer), improving the display uniformity and reliability of the display panel 100.

[0089] like Figure 5 As shown, in some embodiments, the display panel 100 further includes a touch function layer 70, which is located on the side of the encapsulation layer 30 opposite to the display layer 20. For example, the touch function layer 70 may be located between the encapsulation layer 30 and the privacy layer 40.

[0090] The touch function layer 70 includes at least one touch insulating layer 71, meaning the touch function layer 70 may include one, two, or multiple touch insulating layers 71, which can be formed between the touch insulating layers 71. The touch sensor can be a self-capacitive touch sensor or a mutual-capacitive touch sensor, and the specific design can be tailored to actual needs.

[0091] Taking a mutual capacitance touch sensor as an example, the touch functional layer 70 can be provided with a first touch insulating layer 711, a first touch electrode D1, a second touch insulating layer 712, a second touch electrode D2, and a third touch insulating layer 713. Among them, the first touch insulating layer 711 is closer to the encapsulation layer 30 than the third touch insulating layer 713.

[0092] In this design, one of the first touch electrode D1 and the other of the second touch electrode D2 is a transmitting electrode, and the other is a receiving electrode, forming a mutual capacitance between them. When a finger touches the electrode, the human body's electric field shuns part of the electric field between the transmitting and receiving electrodes, causing a decrease in their mutual capacitance. By detecting the change in charge on the receiving electrode, the touch position can be determined.

[0093] The third touch insulating layer 713 can be an organic touch insulating layer, while the first touch insulating layer 711 and the second touch insulating layer 712 can be inorganic touch insulating layers.

[0094] With this configuration, the organic touch insulating layer can planarize the surface of the inorganic touch insulating layer below, providing a flat support base for the upper film layer. At the same time, the interface bonding force between the organic touch insulating layer and the planarization layer 50 is stronger, which helps to improve the adhesion stability between film layers, thereby improving the reliability of the display panel 100.

[0095] like Figure 5 As shown, in some embodiments, the limiting groove W penetrates at least one layer of touch insulating layer 71.

[0096] It is understood that the limiting groove W can be a groove or opening formed on the touch insulating layer 71. Specifically, the depth of the limiting groove W can be designed according to actual needs, as explained below: When the limiting groove W only penetrates a portion of the touch insulating layer 71, meaning the bottom of the limiting groove W still retains a portion of the thickness of the touch insulating layer 71, the limiting groove W exhibits a groove structure, with both the bottom and walls composed of the same touch insulating layer 71. For example, the limiting groove W only penetrates a portion of the third touch insulating layer 713, and the bottom of the groove is located inside the third touch insulating layer 713.

[0097] When the limiting groove W completely penetrates a touch insulating layer 71 but not the underlying film layer, the opening and the surface of the underlying film layer together form a complete groove. For example, as Figure 5As shown, the limiting groove W penetrates the third touch insulating layer 713, and the bottom of the groove ends at the surface of the second touch insulating layer 712. At this time, the groove is formed by the side wall of the third touch insulating layer 713 and the upper surface of the second touch insulating layer 712.

[0098] When the limiting groove W penetrates at least one touch insulating layer 71 and the bottom of the groove ends inside the lower touch insulating layer 71, that is, the lower touch insulating layer 71 is only partially penetrated, the limiting groove W exhibits a groove structure, and the bottom of the groove is formed by the remaining part of the touch insulating layer 71. For example, the limiting groove W penetrates the third touch insulating layer 713 and the second touch insulating layer 712, and the bottom of the groove ends in the middle part of the first touch insulating layer 711. In this case, the groove body is formed by the side walls of the third touch insulating layer 713 and the second touch insulating layer 712 together with the remaining part of the first touch insulating layer 711.

[0099] When the limiting groove W penetrates through multiple layers of touch insulating layers 71 and the bottom of the groove ends at the surface of the lower film layer, the opening and the surface of the lower film layer together form a complete groove. For example, the limiting groove W penetrates through the third touch insulating layer 713, the second touch insulating layer 712 and the first touch insulating layer 711, and the bottom of the groove ends at the surface of the encapsulation layer 30. In this case, the groove is formed by the sidewalls of the three touch insulating layers 71 and the upper surface of the encapsulation layer 30.

[0100] In this embodiment, the process for forming the limiting groove W is not limited, and the limiting groove W can be formed by etching or other suitable processes.

[0101] In some examples, one or more limiting slots W may be provided in the non-display area SA. Multiple limiting slots W may be arranged within the non-display area SA along the direction from the display area AA to the non-display area SA. The embodiments of this disclosure do not limit the number of limiting slots W; the number of limiting slots W can be designed according to actual needs.

[0102] For example, along the direction from the display area AA to the non-display area SA, two limiting slots W can be arranged in the non-display area SA.

[0103] This configuration ensures that there are a sufficient number of limiting slots W in the non-display area SA, while preventing an excessive number of limiting slots W from occupying too much space and increasing the size of the non-display area SA, thus facilitating the narrow bezel of the display panel 100.

[0104] In some examples, the limiting slot W at least surrounds a portion of the display area AA. For example, the limiting slot W is positioned to surround the display area AA.

[0105] It is understood that the limiting groove W surrounding the display area AA can be a continuous or discontinuous structure. When the limiting groove W is a discontinuous structure, its size and shape can be set according to actual needs. The specific shape of the limiting groove W can be designed according to actual needs, and this embodiment of the invention does not impose specific limitations on it.

[0106] In some examples, the limiting groove W includes a plurality of isolation sub-grooves that at least partially surround the display area AA; adjacent isolation sub-grooves are not connected to each other along the direction surrounding the display area AA.

[0107] In this embodiment, each limiting sub-slot of the limiting slot W is at least partially arranged around the display area AA. This can be understood as follows: each limiting sub-slot of the same limiting slot W is arranged sequentially along the direction surrounding the display area AA. The size and number of the limiting sub-slots at each position in the direction surrounding the display area AA can be designed according to actual needs. This embodiment of the invention does not impose specific limitations on this.

[0108] In some examples, the shape of the limiting sub-slot can be a regular or irregular shape such as a triangle, circle, ellipse, square, rhombus or hexagon. The specific design can be made according to actual needs, and the embodiments of the present invention do not impose specific limitations on this.

[0109] Based on the above description of the second barrier PS2 and the limiting groove W, it is understood that in the actual preparation process, due to uncontrollable factors such as process fluctuations and material flowability, using only the second barrier PS2 or only the limiting groove W to limit the boundary of the planarization layer 50 may result in insufficient limiting effect, leading to the risk of outward diffusion of the planarization layer 50. Therefore, this disclosure also provides a scheme that combines the limiting groove W with the second barrier PS2, and its specific structure and function will be described in detail below with reference to the accompanying drawings.

[0110] Figure 6 A cross-sectional view of another display panel provided in an embodiment of this disclosure.

[0111] like Figure 6 As shown, in some embodiments, the non-display area SA is provided with a second barrier PS2 and a limiting groove W.

[0112] For example, the limiting groove W can be located on the side of the second barrier PS2 away from the display area AA, that is, when the boundary of the planarization layer 50 crosses the second barrier PS2, the limiting groove W can provide secondary limiting. Alternatively, the limiting groove W can be located on the side of the second barrier PS2 closer to the display area AA, that is, when the boundary of the planarization layer 50 crosses the limiting groove W, the second barrier PS2 can provide supplementary limiting. Both of these arrangements can be selected according to actual process conditions and limiting requirements, and this embodiment does not specifically limit them.

[0113] With this configuration, the second barrier PS2 and the limiting groove W form a dual limiting structure, which can effectively compensate for the insufficient limiting that may occur under the influence of process fluctuations or material flowability in a single limiting method. This significantly improves the blocking effect on the boundary of the planarization layer 50, reduces the risk of excessive diffusion of the planarization layer 50 into the non-display area SA, and thus better ensures the integrity of the coverage of the slope of the organic encapsulation sublayer 31 by the planar portion 51. This provides a more flat and reliable support foundation for the upper film layer, and further improves the display uniformity and reliability of the display panel 100.

[0114] It should be noted that when the display panel 100 has a touch function layer 70, the limiting groove W can be a structure formed on the touch insulating layer 71. When the display panel 100 does not have a touch function layer 70, the limiting groove W is formed in the insulating layer in the display layer 20, which can also limit the boundary of the planarization layer 50 and improve the problem of excessive diffusion of the planarization layer 50 into the non-display area SA.

[0115] Figure 7 A cross-sectional view of another display panel provided in an embodiment of this disclosure.

[0116] like Figure 7 As shown, in some embodiments, the non-display area SA includes at least a lower border area SA1. The lower border area SA1 includes a bending area F and a bonding area B. The bonding area B is located on the side of the bending area F away from the display area AA. The bending area F includes a stacked metal trace layer M1 and a protective layer U.

[0117] Specifically, when the display panel 100 is used in a display device, the bonding area B is used to bond the driver chip or flexible circuit board. The display panel 100 is bent to the back of the display panel 100 in the bending area F. The metal trace layer M1 provided in the bending area F of the display panel 100 is used to form signal lines so that the devices on the front of the display panel 100 can be connected to the bonding area B through the signal lines in the bending area F. The signal lines formed by the metal trace layer M1 are prone to breakage when bent. Therefore, an adjacent protective layer U is provided. The protective layer U can be an organic protective layer, which releases bending stress through organic materials and protects the metal trace layer M1 to prevent breakage.

[0118] like Figure 7 As shown, in some embodiments, the protective layer U and the planarization layer 50 can be disposed on the same layer.

[0119] Specifically, the planarization layer 50 is made of organic materials, and the protective layer U is also made of organic materials. The two can be formed simultaneously in the same process without the need for additional processes, which helps to simplify the process flow and save process costs.

[0120] Figure 8A cross-sectional view of another display panel provided in an embodiment of this disclosure.

[0121] like Figure 8 As shown, in some embodiments, the edge portion 52 in the planarization layer 50 extends to the bending region F, and the edge portion 52 covers the metal trace layer M1 of the bending region F. The edge portion 52 located in the bending region F is reused as a protective layer U.

[0122] With this configuration, the edge portion 52 of the planarization layer 50 can replace the original protective layer U, providing flexible buffer protection for the bending area F, reducing the risk of breakage of the metal trace layer M1 during bending, and eliminating the need for a separate process for the protective layer U, which simplifies the process flow and further reduces the bezel width. Furthermore, while the edge portion 52 extends to the bending area F, the flat portion 51 of the planarization layer 50 can still cover the slope formed by the organic encapsulation sublayer 31 near the first barrier PS1, providing a flat support base for the upper film layer and ensuring that the display uniformity and reliability of the display panel 100 are not affected.

[0123] Combination Figure 1 and Figure 8 As shown, in some embodiments, the non-display area SA may include, in addition to the lower border area SA1, the upper border area SA2, the left border area SA3, and the right border area SA4. The upper border area SA2, the left border area SA3, the lower border area SA1, and the right border area SA4 are connected in sequence to form the non-display area SA.

[0124] It should be noted that the functions of the limiting groove W and the second retaining wall PS2 located in the upper frame area SA2, the left frame area SA3, and the right frame area SA4 can be referred to the relevant descriptions in the aforementioned embodiments, and will not be repeated here. The limiting groove W and the second retaining wall PS2 located in the lower frame area SA1, in addition to the aforementioned limiting function, can also perform additional functions based on the specific structural characteristics of the lower frame area SA1, which will be described in detail below with reference to the accompanying drawings.

[0125] Specifically, the second retaining wall PS2 can be set on the side of the bending area F away from the binding area B, and the limiting groove W can be set between the bending area F and the binding area B, with the boundary of the flattening layer 50 located within the limiting groove W.

[0126] With this configuration, the limiting groove W is located between the bending area F and the bonding area B. Its groove wall can limit the boundary of the planarization layer 50, preventing it from spreading further towards the bonding area B. This reduces the risk of the planarization layer 50 covering the bonding pads in the bonding area B, thus improving subsequent bonding yield. Simultaneously, because the limiting groove W terminates the boundary of the planarization layer 50 at the side of the bending area F away from the display area AA, the planarization layer 50 can completely cover the bending area F. The planarization layer 50 within the bending area F can be reused as a protective layer, protecting the metal trace layer M1 and reducing the risk of breakage during bending. Furthermore, the flat portion 51 of the planarization layer 50 can still cover the slope formed by the organic encapsulation sublayer 31 near the first barrier PS1, providing a flat support base for the upper film layer and ensuring the display uniformity and reliability of the display panel 100.

[0127] like Figure 8 As shown, in some embodiments, the display panel 100 further includes an isolation groove H located in the bending region F, the isolation groove H penetrating the first inorganic encapsulation sublayer 32 and the second inorganic encapsulation sublayer 33.

[0128] This design physically separates the first inorganic encapsulation sublayer 32 and the second inorganic encapsulation sublayer 33 at the bending area F, ensuring that the inorganic encapsulation layers on opposite sides of the isolation groove H are not connected. When microcracks develop in the bending area F due to stress concentration during repeated bending, the propagation path of the cracks is directly blocked by the isolation groove H, preventing the cracks from continuously extending along the inorganic encapsulation layer towards the display area AA, thereby reducing the risk of damage to the light-emitting elements in the display area AA due to cracks. Simultaneously, the isolation groove H cuts off the path for external water and oxygen to infiltrate into the display area AA along the crack channels in the inorganic encapsulation layer, which helps improve encapsulation reliability and extend the service life of the display panel 100.

[0129] Understandably, the protective layer U of the bending zone F will fill the isolation groove H. The protective layer U has good flexibility, capable of absorbing and buffering bending stress, further reducing the risk of cracks in the inorganic encapsulation layer at the bottom and sidewalls of the isolation groove H due to stress concentration. Simultaneously, after filling the isolation groove H, the protective layer U can form a protective coating on the exposed inorganic encapsulation layer cross-section of the isolation groove H, further blocking the path of water and oxygen intrusion along the cross-section and improving encapsulation reliability.

[0130] In some embodiments, when the display panel 100 has a touch function layer 70, the isolation groove H penetrates at least one touch insulating layer 71. In other words, the isolation groove H may penetrate one, two, or more touch insulating layers 71. For example, the isolation groove H may penetrate only the third touch insulating layer 713; the isolation groove H may penetrate the third touch insulating layer 713 and the second touch insulating layer 712; or, the isolation groove H may penetrate the third touch insulating layer 713, the second touch insulating layer 712, and the first touch insulating layer 711. Figure 8 The diagram illustrates the process of using an isolation groove H that penetrates the third touch insulation layer 713, the second touch insulation layer 712, and the first touch insulation layer 711 as an example.

[0131] This design physically disconnects the touch insulating layer 71 at the bending area F from the isolation groove H, ensuring that the touch insulating layers 71 on opposite sides of the isolation groove H are not connected. When microcracks develop in the bending area F due to stress concentration during repeated bending, the extension path of the cracks along the touch insulating layer 71 is directly blocked by the isolation groove H, confining the microcracks that may occur during bending to a local area and reducing the risk of the cracks affecting the display area AA. Simultaneously, the isolation groove H penetrates all the aforementioned inorganic film layers in the bending area F, which helps to reduce the overall thickness of the bending area F, further releasing bending stress and facilitating the subsequent bonding connection between the driver chip or flexible circuit board and the pads.

[0132] Furthermore, since the planarization layer 50 is located on the side of the touch functional layer 70 away from the substrate, and the isolation groove H penetrates the touch functional layer 70 and the inorganic film layers below it, when the planarization layer 50 is formed, its material can be directly filled into the isolation groove H to form a protective enclosure for the metal trace layer M1 in the bending area F, which helps to reduce the risk of the metal trace layer M1 breaking during bending.

[0133] Some embodiments of this disclosure provide a display device. Figure 9 This is a schematic diagram of the structure of a display device provided in an embodiment of the present disclosure.

[0134] like Figure 9 As shown, the display device 200 is a product with image display capabilities (including still images or moving images, where moving images can be video). For example, the display device 200 can be any of the following: monitor, television set, billboard, digital photo frame, laser printer with display function, telephone, mobile phone, personal digital assistant (PDA), digital camera, portable camcorder, viewfinder, navigator, vehicle, large-area wall display, home appliance, information query equipment (such as business query equipment for e-government, banks, hospitals, power companies, etc.), monitor, etc.

[0135] like Figure 9 As shown, the display device 200 includes the display panel 100 provided in any of the above embodiments. Therefore, the display device 200 provided by the present invention has all the beneficial effects of the display panel 100 provided in any of the above embodiments, which will not be elaborated here.

[0136] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0137] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, characterized in that, include: Display area and non-display area, wherein the non-display area at least surrounds a portion of the display area; The display panel also includes: Substrate; A display layer is located on one side of the substrate. The display layer includes a plurality of sub-pixels, each sub-pixel including a light-emitting device. The plurality of sub-pixels include a privacy screen sub-pixel, wherein the light-emitting device in the privacy screen sub-pixel is a first light-emitting device. An encapsulation layer is located on the side of the display layer away from the substrate, the encapsulation layer covers the light-emitting device, and the encapsulation layer includes an organic encapsulation sublayer; A privacy shield is located on the side of the encapsulation layer away from the substrate. The privacy shield includes a first light-shielding portion, the orthographic projection of which on the display layer at least partially surrounds the first light-emitting device. A planarization layer is located on the side of the privacy layer away from the substrate. The planarization layer includes adjacent flat portions and edge portions. The surface of the flat portion on the side away from the substrate is a flat surface parallel to the substrate. The flat portion covers the display area, and the edge portion is located in the non-display area. A filter layer is located on the side of the planarization layer away from the substrate. The filter layer includes a color resist and a second light-shielding portion. The orthogonal projection of the color resist on the display layer overlaps with the light-emitting device. The orthogonal projection of the second light-shielding portion on the display layer at least partially surrounds the light-emitting device.

2. The display panel according to claim 1, characterized in that, The thickness of the color resist near the non-display area is equal to the thickness of the color resist away from the non-display area.

3. The display panel according to claim 1, characterized in that, The orthographic projection of the flat portion onto the encapsulation layer covers the organic encapsulation sublayer.

4. The display panel according to claim 1, characterized in that, Also includes: A touch function layer is located on the side of the encapsulation layer opposite to the display layer; the touch function layer includes at least one touch insulating layer; At least one limiting groove located in the non-display area, the limiting groove penetrating at least one layer of the touch insulating layer, the boundary of the planarization layer being located on the side of the groove wall of the limiting groove closer to the display area.

5. The display panel according to claim 4, characterized in that, The non-display area includes at least a bottom border area; the bottom border area includes a bending area and a binding area, the binding area being located on the side of the bending area away from the display area; The bending area includes a stacked metal trace layer and a protective layer, with the protective layer and the planarization layer disposed on the same layer.

6. The display panel according to claim 5, characterized in that, The edge portion of the planarization layer extends to the bending area and covers the metal trace layer of the bending area, and the edge portion located in the bending area is reused as the protective layer.

7. The display panel according to claim 5, characterized in that, The limiting groove is located between the bending area and the binding area, and the boundary of the planarization layer is located within the limiting groove.

8. The display panel according to claim 5, characterized in that, Also includes: An isolation groove is located in the bending area, and the isolation groove penetrates at least one layer of the touch insulation layer.

9. The display panel according to claim 8, characterized in that, In a direction perpendicular to the plane of the substrate, the encapsulation layer further includes a first inorganic encapsulation sublayer and a second inorganic encapsulation sublayer located on opposite sides of the organic encapsulation sublayer; The isolation groove also extends through the first inorganic encapsulation sublayer and the second inorganic encapsulation sublayer.

10. The display panel according to claim 1, characterized in that, Also includes: At least one first barrier is located in the non-display area; the boundary of the organic encapsulation sublayer is located on at least a portion of the first barrier on the side closer to the display area.

11. The display panel according to claim 10, characterized in that, Also includes: At least one second barrier wall is located in the non-display area, the second barrier wall being located on the side of the first barrier wall away from the display area; The boundary of the planarization layer is located on at least part of the second retaining wall on the side closest to the display area.

12. The display panel according to claim 1, characterized in that, Both the organic encapsulation sublayer and the planarization layer are inkjet printing layers.

13. The display panel according to claim 1, characterized in that, The multiple sub-pixels also include shared sub-pixels, and the orthographic projection of the privacy layer onto the display layer does not overlap with the shared sub-pixels.

14. A display device, characterized in that, include: The display panel as described in any one of claims 1 to 13.

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