Display panel and display apparatus

Abstract

The present application relates to the technical field of display. Disclosed are a display panel and a display apparatus, which can mitigate the problem of large-viewing-angle light leakage of the display panel, and thus improve the anti-peeping effect of the display panel. The display panel comprises: a driving substrate, which comprises a substrate layer and a driving layer; a light-emitting device layer, which is disposed on the side of the driving layer that is away from the substrate layer; and at least two layers of light-shielding structures, which are disposed on the side of the light-emitting device layer that is away from the substrate layer, wherein an isolation layer is disposed between the at least two layers of light-shielding structures. The light-emitting device layer comprises a pixel defining layer, a light-emitting layer and a reflection structure, wherein the pixel defining layer comprises a plurality of pixel openings, the light-emitting layer is disposed in the pixel openings, and at least a portion of the reflection structure is disposed on inner walls of the pixel openings; and each light-shielding structure is provided with a plurality of hollowed-out portions, the orthographic projections of the hollowed-out portions on the substrate layer covering the orthographic projections of the pixel openings on the substrate layer.

Description

A display panel and display device Cross-references to related applications

[0001] This disclosure claims priority to Chinese patent application No. 202411745680.X, filed on November 29, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of display technology, and more particularly to a display panel and display device. Background Technology

[0003] Currently, with the continuous development of display technology, privacy technology is gradually being integrated with real-world technologies and has been widely applied. In privacy display technology, both privacy protection and display performance need to be balanced. However, existing privacy displays often suffer from reduced brightness due to the privacy function, and also exhibit light leakage at wide viewing angles, resulting in poor privacy protection performance. Summary of the Invention

[0004] This application provides a display panel and display device that can reduce light leakage at wide viewing angles and improve the privacy protection effect of the display panel.

[0005] A first aspect of this application provides a display panel, including:

[0006] A driving substrate, the driving substrate comprising a substrate layer and a driving layer;

[0007] A light-emitting device layer is disposed on the side of the driving layer away from the substrate layer;

[0008] At least two light-shielding structures are provided, wherein the light-shielding structures are disposed on the side of the light-emitting device layer away from the substrate layer, and an isolation layer is provided between the at least two light-shielding structures;

[0009] The light-emitting device layer includes a pixel defining layer, a light-emitting layer, and a reflective structure. The pixel defining layer includes a plurality of pixel openings. The light-emitting layer is disposed in the pixel openings, and at least a portion of the reflective structure is disposed on the inner wall of the pixel openings.

[0010] The light-shielding structure has multiple cutouts, and the orthogonal projection of the cutouts on the substrate layer covers the orthogonal projection of the pixel opening on the substrate layer.

[0011] In some embodiments, the orthographic projection of the light-shielding structure on the substrate layer does not overlap with the orthographic projection of the pixel opening on the substrate layer, and the orthographic projection of the light-shielding structure on the substrate layer does not overlap or partially overlaps with the orthographic projection of the reflective structure on the substrate layer.

[0012] In some embodiments, the light-shielding structure includes a first light-shielding structure and a second light-shielding structure, wherein the second light-shielding structure is disposed on the side of the light-emitting device layer away from the substrate layer, and the first light-shielding structure is disposed between the second light-shielding structure and the light-emitting device layer;

[0013] At least one first insulating layer is provided between the second light-shielding structure and the first light-shielding structure; and / or,

[0014] At least one second isolation layer is provided between the second light-shielding structure and the first light-shielding structure;

[0015] The first isolation layer and the second isolation layer are made of different materials. The thickness of a single layer of the second isolation layer in the second direction is the same as the thickness of a single layer of the first isolation layer in the second direction, wherein the second direction is a direction perpendicular to the plane of the substrate layer.

[0016] In some embodiments, the distance between the first light-shielding structure and the second light-shielding structure in the second direction is a first spacing;

[0017] The distance between the first light-shielding structure and the light-emitting device layer in the second direction is the second spacing;

[0018] The first spacing is greater than the second spacing.

[0019] In some embodiments, the size of the first spacing ranges from 10 μm to 14 μm.

[0020] In some embodiments, the first light-shielding structure includes a first cutout, and the second light-shielding structure includes a second cutout, wherein the orthographic projection of the second cutout on the substrate layer covers the orthographic projection of the first cutout on the substrate layer;

[0021] The size of the first cutout in the first direction is less than or equal to the size of the second cutout in the first direction, wherein the first direction is the direction of the line connecting adjacent pixel openings.

[0022] In some embodiments, the light-shielding structure includes a third light-shielding structure disposed between the first light-shielding structure and the light-emitting device layer, wherein the orthographic projection of the third light-shielding structure on the substrate layer does not overlap with the orthographic projection of the pixel opening on the substrate layer;

[0023] At least one first insulating layer is provided between the first light-shielding structure and the third light-shielding structure; and / or,

[0024] At least one second isolation layer is provided between the first light-shielding structure and the third light-shielding structure.

[0025] In some embodiments, the distance between the first light-shielding structure and the second light-shielding structure in the second direction is a third spacing;

[0026] The distance between the first light-shielding structure and the third light-shielding structure in the second direction is the fourth spacing;

[0027] The fourth spacing is greater than the third spacing.

[0028] In some embodiments, the size of the third spacing ranges from 6 μm to 10 μm; and / or,

[0029] The fourth spacing has a size range of 10 μm to 16 μm.

[0030] In some embodiments, the first light-shielding structure includes a first perforation, the second light-shielding structure includes a second perforation, and the third light-shielding structure includes a third perforation;

[0031] The orthographic projection of the second cutout on the substrate layer covers the orthographic projection of the first cutout on the substrate layer, and the orthographic projection of the first cutout on the substrate layer covers the orthographic projection of the third cutout on the substrate layer;

[0032] The size of the third cutout in the first direction is the same as the size of the first cutout in the first direction; and / or,

[0033] The size of the third cutout in the first direction is the same as the size of the second cutout in the first direction.

[0034] In some embodiments, the thickness of the first light-shielding structure in the second direction is the same as the thickness of the second light-shielding structure in the second direction; and / or,

[0035] The thickness of the first light-shielding structure in the second direction is the same as the thickness of the third light-shielding structure in the second direction.

[0036] In some implementations, the driving layer includes pixel circuitry;

[0037] The light-emitting device layer includes a first electrode and a second electrode, and the light-emitting layer is disposed between the first electrode and the second electrode;

[0038] The reflective structure and the first electrode are an integral part of each other.

[0039] In some embodiments, the light-emitting device layer includes a first electrode and a second electrode, and the light-emitting layer is disposed between the first electrode and the second electrode;

[0040] The reflective structure includes at least two reflective layers;

[0041] At least one of the reflective layers is disposed in the same layer as the first electrode; and / or,

[0042] At least one of the reflective layers is disposed in the same layer as the second electrode.

[0043] In some embodiments, the reflective structure includes at least two stepped structures, each step comprising at least two stepped surfaces, and at least one extended surface of the stepped surface intersects the plane containing the substrate layer.

[0044] In some embodiments, the reflective structure is embedded within the pixel defining layer, and the orthographic projection of the pixel defining layer onto the substrate layer covers the orthographic projection of the stepped structure onto the substrate layer.

[0045] In some embodiments, the pixel defining layer includes at least two defining layers, wherein the defining layer away from the substrate layer covers the defining layer close to the substrate layer;

[0046] The reflective structure is disposed between the two defining layers.

[0047] A second aspect of this application provides a display device, comprising:

[0048] The display panel as described in the first aspect. Attached Figure Description

[0049] Figure 1 is a schematic partial structural diagram of a display panel provided in an embodiment of this application;

[0050] Figure 2 is a schematic partial structural diagram of a display panel provided in an embodiment of this application;

[0051] Figure 3 is a schematic partial structural diagram of another display panel provided in an embodiment of this application;

[0052] Figure 4 is a schematic partial structural diagram of another display panel provided in an embodiment of this application;

[0053] Figure 5 is a schematic partial structural diagram of another display panel provided in an embodiment of this application;

[0054] Figure 6 is a schematic partial structural diagram of a display panel provided in an embodiment of this application;

[0055] Figure 7 is a schematic partial structural diagram of another display panel provided in an embodiment of this application;

[0056] Figure 8 is a schematic partial structural diagram of another display panel provided in an embodiment of this application;

[0057] Figure 9 is a schematic partial structural diagram of another display panel provided in an embodiment of this application;

[0058] Figure 10 is a schematic partial structural diagram of a display panel provided in an embodiment of this application;

[0059] Figure 11 is a schematic partial structural diagram of another display panel provided in an embodiment of this application;

[0060] Figure 12 is a schematic partial structural diagram of another display panel provided in an embodiment of this application;

[0061] Figure 13 is a schematic partial structural diagram of another display panel provided in an embodiment of this application;

[0062] Figure 14 is a schematic partial structural diagram of a display panel provided in an embodiment of this application;

[0063] Figure 15 is a schematic partial structural diagram of another display panel provided in an embodiment of this application;

[0064] Figure 16 is a schematic optical path diagram of a display panel provided in an embodiment of this application;

[0065] Figure 17 is a schematic optical path diagram of another display panel provided in an embodiment of this application;

[0066] Figure 18 is a schematic partial structural diagram of another display panel provided in an embodiment of this application;

[0067] Figure 19 is a schematic structural diagram of a display device provided in an embodiment of this application. Detailed Implementation

[0068] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0069] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying 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 limitation, 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. The term "two or more" includes two or more cases.

[0070] Currently, in-vehicle privacy products used in the driver's seat are mainly based on the dashboard. The core issue is to solve the problem of the dashboard's reflection in the window, eliminating the potential hazard to the driver's view while driving and reducing traffic accidents. However, existing in-vehicle privacy products suffer from light leakage over a wide viewing angle, resulting in poor privacy protection.

[0071] In view of this, embodiments of this application provide a display panel and a display device that can reduce the problem of light leakage from the display panel at wide viewing angles and improve the privacy protection effect of the display panel.

[0072] A first aspect of this application provides a display panel. FIG1 is a schematic partial structural diagram of a display panel provided in an embodiment of this application. As shown in FIG1, the display panel includes a driving substrate 100, which includes a substrate layer 101 and a driving layer 102. The substrate layer 101 may be a flexible substrate or a rigid substrate, and the driving layer 102 may include pixel circuits and driving circuits, etc. The pixel circuits and driving circuits of the driving layer 102 can be used to drive light-emitting devices to emit light. A light-emitting device layer 200 is disposed on the side of the driving layer 102 away from the first substrate 101, and the light-emitting device layer 200 includes a pixel defining layer 201, a light-emitting layer 202, and a reflective structure 203. The pixel defining layer 201 includes a plurality of pixel openings 204, the light-emitting layer 202 is disposed within the pixel openings 204, and the reflective structure 203 is disposed on the inner wall of the pixel openings 204. The pixel circuit of the driving layer 102 can be electrically connected to the electrodes of the light-emitting device layer 200. The driving layer 102 can drive the light-emitting layer 202 to emit light. The wide-viewing-angle light emitted from the light-emitting layer 202 passes through the reflection structure 203 on the inner wall of the pixel opening 204. The reflection structure 203 focuses the wide-viewing-angle light emitted from the light-emitting layer 202 to the display side D, thereby improving the forward light emission brightness of the display panel. That is, the wide-viewing-angle light can be changed to change its propagation path and emitted from the pixel opening, increasing the amount of light emitted in the forward viewing angle range. The display panel also includes at least two light-shielding structures.

[0073] Referring to Figure 1, the display panel may further include an encapsulation layer 500. A light-shielding structure is disposed on the side of the encapsulation layer 500 away from the substrate layer 101. The light-shielding structure 400 may include a first light-shielding structure 401 and a second light-shielding structure 402. The second light-shielding structure 402 is disposed on the side of the light-emitting device layer 200 away from the substrate layer 101, and the first light-shielding structure 401 is disposed between the second light-shielding structure 402 and the light-emitting device layer 200. The two light-shielding structures can perform two light-shielding treatments on the wide-viewing-angle light emitted from the light-emitting device layer, so that the light-shielding structure can block both wide-viewing-angle light and light leakage between film layers. An isolation layer 300 is disposed between the first light-shielding structure 401 and the second light-shielding structure 402. The isolation layer 300 can be used to separate the light-shielding structures, play a flattening role, and also serve to separate the two light-shielding layers, so that the smaller the spacing between the two light-shielding layers, the greater the brightness on the display side and the better the display effect. By adjusting the thickness of the isolation layer 300, the spacing between the two light-shielding layers can be adjusted, thereby changing the light emission direction of the light passing through the second light-shielding structure 402 and the brightness of the light emitted from the display side D, achieving different display effects. The light-shielding structure 400 has multiple cutouts 403, the orthographic projection of which onto the substrate layer 101 covers the orthographic projection of the pixel opening 204 onto the substrate layer 101. The orthographic projection of the second light-shielding structure 402 onto the substrate layer 101 partially covers the orthographic projection of the first light-shielding structure 401 onto the substrate layer 101. By adjusting the coverage area of ​​the second light-shielding structure 402's orthographic projection over the first light-shielding structure's orthographic projection onto the substrate layer 101, the size of the cutouts in the second light-shielding structure 402 can be adjusted. Adjusting the size of the cutouts in the second light-shielding structure 402 changes the light emission direction and the display brightness of the display side D. By adjusting the width in the first direction X, wide-view light reflected by the reflective structure 203 can be blocked, thus blocking wide-view light emitted from the light-emitting layer 202. By setting the first light-shielding structure to cover the second light-shielding structure, the direction and brightness of the emitted light can be further adjusted. At the same time, wide-view light emitted from the light-emitting layer 202 can be effectively blocked to avoid color shift caused by light mixing. Blocking wide-view light can also achieve an anti-peeping effect. The forward light emitted from the light-emitting layer 202 can be directly emitted to the display side D of the display panel through the cutout 403 of the light-shielding structure 400. Wide-view light emitted from the light-emitting layer 202 in the left and right directions first passes through the reflective structure 203 on the inner wall of the pixel opening 204, and then passes through the cutout 403 of the light-shielding structure 400 to the display side D.The reflective structure 203 can change the light path of the large-angle light emitted from the light-emitting layer. That is, by setting the reflective structure 203 on the inner wall of the pixel opening 204, the large-angle light of the light-emitting layer 202 is focused to improve the brightness of the light emitted from the display side D. At the same time, by using at least two layers of light-shielding structures 400 to block the large-angle light emitted from the light-emitting layer at least twice, leakage of the large-angle light emitted from the light-emitting layer 202 can be avoided. This allows the light emitted from the light-emitting layer 202 to be concentrated and emitted in the positive viewing angle direction of the display side D for image display, while no image is displayed in the large viewing angle direction of the display side D, thus improving the privacy protection effect.

[0074] It should be noted that, referring to Figure 1, the light-emitting layer 202 can be driven to emit light by an anode and a cathode. The anode is disposed below the light-emitting layer 202, and the cathode is disposed above the light-emitting layer 202. The light-emitting layer 202 is driven to emit light by an electrical signal. The driving layer 102 can be provided with pixel circuitry. The pixel circuitry can provide a driving signal for the anode, and the cathode signal can be provided by a cathode signal line. The light-emitting layer 202, anode, cathode, and pixel defining layer 201 can form a light-emitting device layer.

[0075] Common privacy protection technologies typically include controlling the light emission from the device by manipulating the deflection of the liquid crystal; controlling the light emission from the viewing angle using a black matrix; and adjusting the light emission from the viewing angle using a lens array. However, current traditional privacy protection structures all suffer from insufficient brightness at a positive viewing angle and light leakage at a large viewing angle. This causes the reflection of the dashboard and window to be exposed in front of the driver while driving, resulting in unclear vision and increasing the risk of traffic accidents.

[0076] The display panel provided in this application embodiment, by setting a reflective structure within the pixel opening, can alter the optical path of wide-viewing-angle light emitted from the light-emitting layer, thereby converging the wide-viewing-angle light emitted from the light-emitting layer, increasing the brightness of the light emitted from the normal viewing angle, and reducing the light emitted from the wide-viewing-angle direction, thus preventing privacy. Furthermore, at least two light-shielding structures can effectively block the wide-viewing-angle light reflected by the reflective structure, further enhancing the privacy function. Therefore, the setting of the reflective structure and the light-shielding layer ensures that the light emitted from the light-emitting layer is concentrated in the normal viewing angle direction on the display side for high-brightness image display, while the wide-viewing-angle direction on the display side remains unlit. This avoids light leakage from the wide-viewing-angle direction and increases the brightness of the displayed image, greatly improving the privacy effect of the display panel and thus preventing traffic accidents.

[0077] Figure 2 is a schematic partial structural diagram of a display panel provided in an embodiment of this application. Exemplarily, as shown in Figure 2, the driving substrate 100 includes a substrate layer 101 and a driving layer 102, the substrate layer including a flexible substrate. The driving layer 102 may include a first buffer layer 111, a second buffer layer 112 and a third buffer layer 113, a first gate insulating layer 114, a second gate insulating layer 115, a third gate insulating layer 116, an inter-insulating layer 117, a first inorganic layer 118, a second inorganic layer 119, a first source / drain electrode layer 128, a second source / drain electrode layer 129, a first semiconductor layer 127 and a second semiconductor layer 130. The first source / drain electrode layer 128 can be used to set the source and drain of a thin-film transistor, and the second source / drain electrode layer 129 can be used to set signal lines and electrodes connecting the source or drain to a light-emitting device, for providing driving signals to the light-emitting device. A first gate layer 124 is disposed between the second buffer layer 112 and the first gate insulating layer 114, and a first semiconductor layer 127 is disposed between the first gate insulating layer 114 and the second buffer layer 112. A second gate layer 125 is disposed between the first gate insulating layer 114 and the second gate insulating layer 115, a third gate layer 126 is disposed between the third gate insulating layer 116 and the inter-insulating layer 117, and a second semiconductor layer 130 is disposed between the third gate layer 126 and the third buffer layer 113.

[0078] For example, the driving layer 102 may include a pixel circuit, which includes a thin-film transistor (TFT). The TFT includes a source, a drain, a gate, and a semiconductor layer. A first semiconductor layer 127 and a second semiconductor layer 130 can be used to form the semiconductor layers of the TFT. A first gate layer 124, a second gate layer 125, and a third gate layer 126 can be used to form the gate and a portion of the signal line. A first source / drain electrode layer 128 can be used to form the source and drain. The TFT in the pixel circuit is electrically connected to the anode in the light-emitting device layer to drive the light-emitting layer to emit light.

[0079] For example, a backplane is fabricated using a driving substrate process. The driving substrate also includes a thin-film crystal switch and a storage capacitor. After the backplane is fabricated, a light-emitting device layer, an encapsulation layer, and other functional film layers are fabricated using evaporation and encapsulation processes. The light-emitting device layer may include a red light-emitting layer, a green light-emitting layer, and a blue light-emitting layer. The functional film layers may also include a hole generation layer, a hole transport layer, an electron transport layer, an electron injection layer, a cathode, a CPL (light extraction layer and protective layer), and a LiF (lithium fluoride layer / transparent thin film encapsulation layer), which are mainly fabricated in organic and metal cavities using vacuum evaporation. The CPL can protect the cathode by forming the first layer, reducing surface plasma polaritons near the metal electrodes, improving the light transmittance of the cathode, and improving the light extraction efficiency. The LiF can isolate water and oxygen, preventing moisture from seeping into the display panel and affecting the display effect.

[0080] In some embodiments, the orthographic projection of the light-shielding structure 400 on the substrate 101 does not overlap with the orthographic projection of the pixel aperture on the substrate 101. The frontal viewing angle light emitted from the light-emitting layer 202 passes directly through the cutout 403 of the light-shielding structure 400 and is emitted to the display side for image display. This avoids the light-shielding structure 400 blocking the light-emitting layer 202 and affecting its forward light emission, thus ensuring that the pixel aperture ratio remains unaffected. The orthographic projection of the light-shielding structure 400 on the substrate 101 does not overlap with or only partially overlaps with the orthographic projection of the reflective structure 203 on the substrate 101.

[0081] In some examples, when the orthographic projection of the light-shielding structure 400 on the substrate 101 does not overlap with the orthographic projection of the reflective structure 203 on the substrate 101, the side of the light-shielding structure 400 can be a plane. The wide-angle light emitted from the light-emitting layer 202, after being reflected by the reflective structure 203, directly passes through the perforation of the light-shielding structure 400 and is emitted to the display side.

[0082] In some examples, when the orthographic projection of the light-shielding structure 400 on the substrate 101 overlaps with the orthographic projection of the reflective structure 203 on the substrate 101, the side of the light-shielding structure 400 is sloped. A portion of the wide-viewing-angle light emitted from the light-emitting layer 202, after being reflected by the reflective structure 203, passes directly through the perforation of the light-shielding structure 400 to the display side. The remaining portion undergoes a second light-shielding process via the slope of the light-shielding structure 400, blocking the wide-viewing-angle light from escaping and preventing light leakage. Through the arrangement of the light-shielding structure, reflective structure, and pixel openings, the wide-viewing-angle light can be focused once and shielded twice, significantly improving the brightness of the display side.

[0083] In some embodiments, one or more first isolation layers may be disposed between the second light-shielding structure 402 and the first light-shielding structure 401, and one or more second isolation layers may be disposed between the second light-shielding structure 402 and the first light-shielding structure 401. The first isolation layer and the second isolation layer are made of different materials; the first isolation layer may be an organic resin, and the second isolation layer may be a polyacrylate. The thickness of a single second isolation layer in the second direction is greater than the thickness of a single first isolation layer in the second direction, wherein the second direction is the direction perpendicular to the plane of the substrate layer.

[0084] Figure 3 is a schematic partial structural diagram of another display panel provided in an embodiment of this application, and Figure 4 is a schematic partial structural diagram of yet another display panel provided in an embodiment of this application. For example, as shown in Figure 3, when a first isolation layer 310 can be disposed between the second light-shielding structure 402 and the first light-shielding structure 401, the first isolation layer 310 can be an organic resin.

[0085] For example, as shown in Figure 4, when multiple layers of first isolation layers 310 can be provided between the second light-shielding structure 402 and the first light-shielding structure 401, the multiple layers of first isolation layers 310 may include a first sub-isolation layer 301, a second sub-isolation layer 302, a third sub-isolation layer 303, and a fourth sub-isolation layer 304. The first sub-isolation layer 301, the second sub-isolation layer 302, the third sub-isolation layer 303, and the fourth sub-isolation layer 304 can all be made of organic resin, and the four layers of organic resin can be prepared by four processes. Each of the four sub-isolation layers has the same thickness in the second direction Y, and the sum of the thicknesses of the four sub-isolation layers in the second direction Y is the same as the total thickness of the multiple layers of first isolation layers 310 in the second direction Y. By setting the isolation layers, the spacing between the first and second light-shielding structures can be adjusted. Different spacings result in different light emission levels on the display side D, leading to different display effects.

[0086] Figure 5 is a schematic partial structural diagram of another display panel provided in an embodiment of this application, and Figure 6 is a schematic partial structural diagram of a display panel provided in an embodiment of this application. Exemplarily, as shown in Figure 5, the display panel further includes an encapsulation layer 500 and a second substrate layer 600. The encapsulation layer 500 includes a first inorganic encapsulation layer 501, a second inorganic encapsulation layer 502, and a first organic encapsulation layer 503. The first inorganic encapsulation layer 501 is disposed on the side of the light-emitting device layer 200 away from the substrate layer 101, and the first organic encapsulation layer 503 is disposed between the first inorganic encapsulation layer 501 and the second inorganic encapsulation layer 502. The encapsulation layer 500 can encapsulate the light-emitting device layer to protect it and prevent external moisture from corroding the light-emitting device. The encapsulation layer 500 is disposed on the side of the light-emitting device layer 200 away from the substrate layer 101, and the second substrate layer 600 is disposed on the side of the first light-shielding structure 401 away from the substrate layer 101. When a second isolation layer 320 can be disposed between the second light-shielding structure 402 and the first light-shielding structure 401, a second substrate layer 600 is disposed on the side of the second isolation layer 320 away from the substrate layer 101. The first organic encapsulation layer 503 and the second isolation layer 320 can be prepared using the same inkjet printing process. Both the first organic encapsulation layer 503 and the second isolation layer 320 can be polyacrylate. The second substrate layer 600 can serve as the substrate for the second isolation layer 320. The second substrate layer 600 can be silicon oxide. Silicon oxide allows the polyacrylate to flow level during the inkjet printing process, improving the flatness of the second isolation layer and avoiding line breakage problems in the subsequent touch layer. By using the same process to prepare the first organic encapsulation layer 503 and the second isolation layer 320, frequent equipment changes during the process can be avoided, increasing product throughput.

[0087] For example, the first inorganic encapsulation layer 501 and the second inorganic encapsulation layer 502 can be fabricated using the same process, such as PECVD (plasma-enhanced chemical vapor deposition) or PEALD (plasma atomic layer deposition). The materials of the first inorganic encapsulation layer 501 and the second inorganic encapsulation layer 502 can be the same, both being one or more layers of SiON, SiO, and SiN. For example, the thickness of the first inorganic encapsulation layer 501 in the second direction Y and the thickness of the second inorganic encapsulation layer 502 in the second direction Y can be the same.

[0088] For example, the thickness of the first inorganic encapsulation layer 501 in the second direction Y can range from 10 nm to 2 μm, the thickness of the second inorganic encapsulation layer 502 in the second direction Y can range from 10 nm to 2 μm, and the thickness of the first organic encapsulation layer in the second direction Y can range from 9 μm to 9.5 μm. The thicknesses of the first inorganic encapsulation layer 501, the second inorganic encapsulation layer 502, and the first organic encapsulation layer in the second direction Y can be controlled by adjusting the deposition time of the (PECVD or PEALD) process.

[0089] It should be noted that the thickness of the encapsulation layer can be adjusted by modifying the thicknesses of the first inorganic encapsulation layer 501, the second inorganic encapsulation layer 502, and the first organic encapsulation layer 503. The privacy protection effect can be improved by reducing the thickness of the first organic encapsulation layer. The thicknesses of the first inorganic encapsulation layer 501, the second inorganic encapsulation layer 502, and the first organic encapsulation layer 503 can be set according to the actual optical product requirements, which will not be elaborated here.

[0090] Typically, the spacing between the light-emitting layer and the light-shielding structure affects the light-shielding effect of the structure on light from a wide viewing angle. When the thickness of the first organic encapsulation layer in the second direction Y is greater than 9.5 μm, the light-shielding effect of the structure is poor.

[0091] This application reduces the thickness of the first organic encapsulation layer 503 in the second direction, thereby reducing the distance between the light-emitting layer and the light-shielding structure, so as to achieve the blocking of light from a wide viewing angle by the light-shielding structure and improve the privacy protection effect.

[0092] For example, as shown in FIG6, when multiple layers of second isolation layers 320 can be disposed between the second light-shielding structure 402 and the first light-shielding structure 401, the multiple layers of second isolation layers 320 may include a fifth sub-isolation layer 305, a sixth sub-isolation layer 306, a seventh sub-isolation layer 307, and an eighth sub-isolation layer 308. The fifth sub-isolation layer 305, the sixth sub-isolation layer 306, the seventh sub-isolation layer 307, and the eighth sub-isolation layer 308 can all be polyacrylate, and the four layers of polyacrylate are prepared by four processes. The second substrate layer 600 can be disposed between the first light-shielding structure 401 and the fifth sub-isolation layer 305, and the second substrate layer 600 is used to level the fifth sub-isolation layer 305. The thickness of a single second isolation layer 320 in the second direction Y is the same as the total thickness of the multiple layers of second isolation layers 320 in the second direction Y. The thickness of a single second isolation layer 320 in the second direction Y is the same as the thickness of a single first isolation layer 310 in the second direction Y.

[0093] In this embodiment, the number and thickness of the first isolation layer between the first and second light-shielding structures, as well as the number and thickness of the second isolation layer between them, can be set according to actual manufacturing capabilities, making the spacing between the first and second light-shielding structures adjustable. Different spacings between the first and second light-shielding structures result in different brightness levels on the display side. By setting the spacing between the first and second light-shielding structures, different processing techniques can be accommodated, allowing for different levels of forward light emission on the display side, thus achieving different display effects.

[0094] Figure 7 is a schematic partial structural diagram of another display panel provided in an embodiment of this application. Exemplarily, as shown in Figure 7, an isolation layer 300 is disposed between the first light-shielding structure 401 and the second light-shielding structure 402, and an encapsulation layer 500 is disposed between the first light-shielding structure 401 and the light-emitting device layer 200. The encapsulation layer 500 includes a first inorganic encapsulation layer 501, a second inorganic encapsulation layer 502, and a first organic encapsulation layer 503. The encapsulation layer 500 can encapsulate the light-emitting device layer to protect it and prevent damage to the light-emitting device when the display panel is pressed. The distance between the first light-shielding structure 401 and the second light-shielding structure 402 in the second direction Y is a first spacing H1, where the first spacing H1 is the thickness of the isolation layer 300 in the second direction Y. The distance between the first light-shielding structure 401 and the light-emitting device layer 200 in the second direction Y is a second spacing H2, where the second spacing H2 is the thickness of the encapsulation layer 500 in the second direction Y. The first spacing H1 is greater than the second spacing H2. By setting the first spacing H1 to be greater than the second spacing H2, the support capacity of the film layer between the first and second light-shielding structures is strengthened, and the compressive strength of the light-emitting device layer is further enhanced, thereby improving the service life of the display panel.

[0095] In some embodiments, the size of the first pitch ranges from 10 μm to 14 μm. When the first pitch H1 is 12 μm, the second pitch H2 can be set to 10 μm. When the first pitch H1 is 13 μm, the second pitch H2 can be set to 11 μm. When the first pitch H1 is 14 μm, the second pitch H2 can be set to 12 μm. By setting the first pitch H1 to be larger than the second pitch H2, the supporting capacity of the film layer between the first and second light-shielding structures is strengthened, and the compressive strength of the light-emitting device layer is further enhanced, thereby improving the lifespan of the display panel.

[0096] For example, as shown in Figures 1 to 7, the thickness of the isolation layer in the second direction Y is related to the spacing between the first light-shielding structure and the second light-shielding structure. The method for fabricating the display panel may be as follows: a driving layer 102 is fabricated on one side of a substrate layer 101; a light-emitting device layer 200 is disposed on the side of the driving layer 102 away from the substrate layer 101; a first light-shielding structure 401 and a second light-shielding structure 402 are disposed on the side of the light-emitting device layer 200 away from the substrate layer 101; an isolation layer 300 is disposed between the first light-shielding structure 401 and the second light-shielding structure 402; and the thickness of the isolation layer 300 in the second direction Y is adjusted by adjusting the first spacing H1 between the first light-shielding structure 401 and the second light-shielding structure 402. When the first spacing H1 is 12 μm and the isolation layer 300 is a single layer, the isolation layer may include a first isolation layer 310, and the thickness of the first isolation layer 310 may be 12 μm. When the first spacing H1 is 12 μm and the isolation layer comprises multiple layers, the first isolation layer 310 may include a first sub-isolation layer 301, a second sub-isolation layer 302, a third sub-isolation layer 303, and a fourth sub-isolation layer 304. The thickness of each of the four sub-isolation layers in the second direction Y may be 3 μm. The thickness of the first isolation layer in the second direction Y is the same as the sum of the thicknesses of the four sub-isolation layers in the second direction Y.

[0097] It should be noted that the thickness of the second isolation layer can be the same as that of the first isolation layer, and both are set according to the spacing between the first and second light-shielding structures.

[0098] It should be noted that the thickness of the isolation layer in the second direction Y of this embodiment is set in accordance with the spacing between the first and second light-shielding structures. The first spacing is set according to the actual optical product requirements to ensure that whether it is a single-layer isolation layer or a multi-layer isolation layer, different spacing requirements can be met by setting the isolation layer thickness to achieve different display effects. The settings of the first spacing and the isolation layer thickness are not listed here.

[0099] In some embodiments, the first light-shielding structure includes a first cutout, and the second light-shielding structure includes a second cutout. The orthographic projection of the second cutout onto the substrate can cover the orthographic projection of the first cutout onto the substrate. Alternatively, the orthographic projection of the second cutout onto the substrate can completely cover the orthographic projection of the first cutout onto the substrate. In this case, the width of the first light-shielding structure in a first direction is the same as the width of the second light-shielding structure in the first direction, where the first direction is the direction of the line connecting adjacent pixel openings. Alternatively, the orthographic projection of the second cutout onto the substrate can partially cover the orthographic projection of the first cutout onto the substrate. In this case, the width of the first light-shielding structure in the first direction is smaller than the width of the second light-shielding structure in the first direction.

[0100] For example, as shown in Figure 7, the size of the first cutout in the first direction X is a first dimension L1, and the size of the second cutout in the first direction is a second dimension L2. When the first dimension L1 is smaller than the second dimension L2, the orthographic projection of the second cutout on the substrate layer partially covers the orthographic projection of the first cutout on the substrate layer. After the wide-angle light emitted from the light-emitting layer is reflected by the reflective structure, the first light-shielding structure provides a first light-shielding effect, and the second light-shielding structure provides a second light-shielding effect and a second reflection. When the third dimension L3 is equal to the second dimension L2, the orthographic projection of the second cutout on the substrate layer completely covers the orthographic projection of the first cutout on the substrate layer, and the orthographic projection of the second cutout on the substrate layer coincides with the orthographic projection of the first cutout on the substrate layer. After the wide-angle light emitted from the light-emitting layer is reflected by the reflective structure, the first light-shielding structure provides a first light-shielding effect, and the second light-shielding structure provides a second light-shielding effect. The larger the fourth dimension, the more light is emitted from the display side, and the better the display effect. By setting the sizes of the first and second cutouts in the first direction, different display effects can be achieved.

[0101] Figure 8 is a schematic partial structural diagram of another display panel provided in an embodiment of this application. For example, as shown in Figure 8, the light-shielding structure 400 includes a third light-shielding structure 404, which is disposed between the first light-shielding structure 401 and the light-emitting device layer 200, and is located on the surface of the light-emitting device layer 220 away from the substrate layer 101. For example, the third light-shielding structure 404 is disposed between the first inorganic encapsulation layer 501 and the first organic encapsulation layer 503. The orthographic projection of the third light-shielding structure 404 on the substrate layer 101 does not overlap with the orthographic projection of the pixel opening 204 on the substrate layer 101, so as to avoid the third light-shielding structure blocking the forward light emitted from the light-emitting layer. Compared with the first light-shielding structure 401 and the second light-shielding structure 402, the third light-shielding structure 404 is closer to the light-emitting layer 202, which can better block light from a wide viewing angle. Through three light-shielding processes, a better privacy protection effect is achieved.

[0102] In some embodiments, a second isolation layer 320 may be provided between the first light-shielding structure 401 and the third light-shielding structure 404, and multiple second isolation layers 320 may be provided between the first light-shielding structure 401 and the third light-shielding structure 404.

[0103] Figure 9 is a schematic partial structural diagram of another display panel provided in an embodiment of this application. Exemplarily, as shown in Figure 9, the display panel includes a first light-shielding structure 401, a second light-shielding structure 402, and a third light-shielding structure 404. When a first isolation layer 310 is provided between the second light-shielding structure 402 and the first light-shielding structure 401, a second isolation layer 320 is provided between the first light-shielding structure 401 and the third light-shielding structure 404. The first isolation layer 310 and the second isolation layer 320 are prepared using the same process. The thickness of the first isolation layer 310 in the second direction Y can be the same as or different from the thickness of the second isolation layer 320 in the second direction Y. The thickness of the first isolation layer 310 in the second direction Y and the thickness of the second isolation layer 320 in the second direction Y can be adjusted according to the actual needs of different optical products. Using the same process to prepare the isolation layer between adjacent light-shielding structures can save one processing step and improve product processing efficiency.

[0104] Figure 10 is a schematic partial structural diagram of a display panel provided in an embodiment of this application. Exemplarily, as shown in Figure 10, multiple layers of first isolation layers 310 can be disposed between the first light-shielding structure 401 and the third light-shielding structure 404, and multiple layers of first isolation layers 310 can also be disposed between the second light-shielding structure 402 and the first light-shielding structure 401. Schematably, the multiple layers of first isolation layers 310 may include a first isolation layer 311, a second isolation layer 312, a third isolation layer 313, and a fourth isolation layer 314. The first isolation layer 311 and the second isolation layer 312 can be disposed between the first light-shielding structure 401 and the third light-shielding structure 404, and the third isolation layer 313 and the fourth isolation layer 314 can be disposed between the second light-shielding structure 402 and the first light-shielding structure 401. The first isolation layer 311, the second isolation layer 312, the third isolation layer 313, and the fourth isolation layer 314 can be prepared using the same process and can all be organic resins. The thickness of the four isolation layers in the second direction Y can be the same or different, and can be adjusted according to the actual needs of different optical products. By preparing isolation layers using the same process in four steps, the isolation layers between the first, second, and third light-shielding structures can use the same process, which can reduce the difficulty of the process and improve the product processing efficiency.

[0105] Figure 11 is a schematic partial structural diagram of another display panel provided in an embodiment of this application. Exemplarily, as shown in Figure 11, when a first isolation layer 310 is provided between the second light-shielding structure 402 and the first light-shielding structure 401, a second isolation layer 320 is provided between the first light-shielding structure 401 and the third light-shielding structure 404. The thickness of the first isolation layer 310 in the first direction X can be the same as or different from the thickness of the second isolation layer 320 in the first direction X. The first isolation layer 310, the second isolation layer 320, and the first organic encapsulation layer 503 can be prepared by the same inkjet printing process. A second planarization layer 610 is provided on the side of the encapsulation layer 500 away from the substrate layer 101. The second planarization layer 610 and the second substrate layer 600 are made of the same material, both being silicon oxide. The second planarization layer is used to level the second isolation layer 320. The thicknesses of the first isolation layer 310, the second isolation layer 320, and the first organic encapsulation layer 503 in the second direction Y can all be adjusted, and can be adjusted according to the actual needs of different optical products. By setting the first isolation layer 310, the second isolation layer 320, and the first organic encapsulation layer 503 between adjacent light-shielding structures using the same process, the difficulty of process processing can be reduced and the product processing efficiency can be improved.

[0106] For example, when multiple layers of second isolation layers 320 are provided between the second light-shielding structure 402 and the first light-shielding structure 401, multiple layers of second isolation layers 320 are provided between the first light-shielding structure 401 and the third light-shielding structure 404. The thickness of each second isolation layer 320 in the second direction Y can be the same or different, and can be adjusted according to the actual needs of different optical products. By setting multiple layers of second isolation layers, the optical path of light is changed to adapt to different display effects.

[0107] Figure 12 is a schematic partial structural diagram of another display panel provided in an embodiment of this application. Exemplarily, as shown in Figure 12, the distance between the first light-shielding structure 401 and the second light-shielding structure 402 in the second direction is a third spacing H3, and the distance between the first light-shielding structure 401 and the third light-shielding structure 404 in the second direction Y is a fourth spacing H4. The fourth spacing H4 can be greater than the third spacing H3, allowing for the accommodation of isolation layers of different thicknesses between the first light-shielding structure 401 and the third light-shielding structure 404, and between the first light-shielding structure 401 and the second light-shielding structure 402, to meet different display effects.

[0108] In some implementations, the size of the third pitch ranges from 6 μm to 10 μm, and the size of the fourth pitch ranges from 10 μm to 16 μm.

[0109] For example, if the third spacing H3 is 6μm, the fourth spacing H4 can be set to 10μm. If the third spacing H3 is 8μm, the fourth spacing H4 can be set to 14μm. If the third spacing H3 is 10μm, the fourth spacing H4 can be set to 16μm.

[0110] This application embodiment allows for the setting of the number and thickness of the first isolation layer between the first and second light-shielding structures, and the number and thickness of the second isolation layer between them, based on actual manufacturing capabilities. This makes the spacing between the first and second light-shielding structures, and the spacing between the first and third light-shielding structures, adjustable. Different spacings between the first and second light-shielding structures result in different brightness levels on the display side. By adjusting the spacing between the first, second, and third light-shielding structures, different manufacturing processes can be accommodated, resulting in varying amounts of forward light emitted from the display side, thus achieving different display effects.

[0111] In some examples, the isolation layer includes a first isolation layer 310 and a second isolation layer 320. The thickness of the isolation layer in the second direction Y is related to the spacing between the first and third light-shielding structures, as well as the spacing between the first and third light-shielding structures. The display panel can be fabricated as follows: a driving layer 102 is fabricated on one side of a substrate layer 101; a light-emitting device layer 200 is disposed on the side of the driving layer 102 away from the substrate layer 101; a first light-shielding structure 401 and a second light-shielding structure 402 are disposed on the side of the light-emitting device layer 200 away from the substrate layer 101; and a third light-shielding structure 404 is disposed between the first light-shielding structure 401 and the light-emitting device layer 200. A first isolation layer 310 is disposed between the first light-shielding structure 401 and the second light-shielding structure 402, and a second isolation layer 320 is disposed between the first light-shielding structure 401 and the third light-shielding structure 404. The third spacing H3 between the first light-shielding structure 401 and the second light-shielding structure 402 is adjusted, that is, the thickness of the first isolation layer 310 between the first and second light-shielding structures is adjusted in the second direction Y. The fourth spacing H4 between the first light-shielding structure 401 and the third light-shielding structure 404 is adjusted, that is, the thickness of the second isolation layer 320 between the first and third light-shielding structures is adjusted in the second direction Y. When the third spacing is 6 μm and the isolation layer 300 is a single layer, the isolation layer may include the first isolation layer 310, and the thickness of the first isolation layer 310 may be 6 μm. When the third spacing is 12 μm and the isolation layer is multi-layered, the isolation layer may include a third isolation layer 313 and a fourth isolation layer 314, and the thickness of either the third isolation layer 313 or the fourth isolation layer 314 may be 3 μm in the second direction Y. The thickness of the first isolation layer 310 in the second direction Y is the same as the sum of the thicknesses of the two sub-isolation layers in the second direction Y.

[0112] For example, when the fourth spacing H4 can be 10 μm and the isolation layer 300 is a single layer, the isolation layer may include a second isolation layer 320, and the thickness of the first isolation layer 310 may be 10 μm. When the fourth spacing is 10 μm and the isolation layer is multi-layered, the isolation layer may include a first isolation layer 311 and a second isolation layer 312, and the thickness of either the first isolation layer 311 or the second isolation layer 312 in the second direction Y may be 3 μm. The thickness of the first isolation layer 310 in the second direction Y is the same as the sum of the thicknesses of the two sub-isolation layers in the second direction Y.

[0113] It should be noted that the thickness of the second isolation layer is the same as that of the first isolation layer, and is set accordingly based on the spacing between the first and second light-shielding structures.

[0114] It should be noted that the thickness of the isolation layer in the second direction Y of this embodiment is set in accordance with the spacing between the first and second light-shielding structures. The first spacing is set according to the actual optical product requirements to ensure that whether it is a single-layer isolation layer or a multi-layer isolation layer, different spacing requirements can be met by setting the isolation layer thickness to achieve different display effects. The settings of the first spacing and the isolation layer thickness are not listed here.

[0115] In some embodiments, the third light-shielding structure includes a third cutout, the orthographic projection of the second cutout onto the substrate is the second projection, the orthographic projection of the first cutout onto the substrate is the first projection, and the orthographic projection of the third cutout onto the substrate is the third projection. The second projection can cover the first projection, and the first projection can cover the third projection. The first, second, and third projections overlap, which can prevent shading between the multiple light-shielding structures.

[0116] Figure 13 is a schematic partial structural diagram of another display panel provided in an embodiment of this application. Exemplarily, as shown in Figure 13, the third cutout has a third dimension in the first direction X, the first cutout has a first dimension L1 in the first direction X, and the second cutout has a second dimension L2 in the first direction. The third dimension L3 is the same as the first dimension L1 and the second dimension L2. Setting the dimensions of the first, second, and third cutouts to be the same can improve the consistency of the film layer preparation process and avoid shading between multiple light-shielding structures, thereby improving the display effect.

[0117] For example, the third size L3 is equal to the first size L1. The second size L2 can be set to be greater than the first size L1, or the second size L2 can be set to be less than the first size L1. By adjusting the size relationship between the second size L2 and the first size L1 and the third size L3, the light emitted from the second light-shielding structure 402 and the display brightness of the display side D can be changed to achieve different display effects.

[0118] As exemplified in Figure 13, the first light-shielding structure has a thickness of h1 in the second direction, the second light-shielding structure has a thickness of h2 in the second direction, and the third light-shielding structure has a thickness of h3 in the second direction. The third thickness is the same as the first thickness, and the third thickness is the same as the second thickness, both being 1.5µm. Setting the thickness of the three light-shielding structures to be the same improves the consistency of the light-shielding performance, preventing light leakage and affecting the display effect.

[0119] Figure 14 is a schematic partial structural diagram of a display panel provided in an embodiment of this application. Exemplarily, as shown in Figures 13 and 14, the display panel further includes a third planarization layer 700, a patterned cover layer 710, and a protective layer 340. The cover layer 710 has a thickness of 2.5 μm in the second direction Y. The angle between the extended surface of the cover layer 710 and the plane containing the substrate layer 101 is 40°. The protective layer 340 can be an organic material, and its thickness in the second direction Y is 4 μm. The third planarization layer 700 can be an organic insulating layer and can be used to planarize the driving layer 102. The shape of the cover layer 710 matches the shape of the first electrode 205 to obtain a patterned first electrode 205. The first electrode 205 can be an anode, and the first electrode via 206 is electrically connected to the driving layer 102. The driving layer 102 includes pixel circuitry, and the light-emitting device layer includes the first electrode 205 and a second electrode. The light-emitting layer 202 is disposed between the first electrode 205 and the second electrode, and the second electrode can be a cathode. The reflective structure and the first electrode 205 are an integral structure, and the first electrode 205 is made of a metallic material. The first electrode 205 can work together with the second electrode to drive the light-emitting layer 202 to emit light. The first electrode 205 can also act as a reflective structure to focus the wide-angle light emitted from the light-emitting layer 202. By fabricating the reflective structure and the first electrode 205 as an integral structure, the display brightness can be improved while saving on processing technology and reducing processing costs.

[0120] For example, when the first electrode 205 is used as a reflective structure, the first electrode 205 is partially overlapped with the cover layer 710, and a portion of the first electrode 205 is disposed at the bottom of the pixel opening 204. The shape of the first electrode 205 can form a reflective cup structure to reflect light from a wide viewing angle.

[0121] For example, the first electrode 205 may be a stacked metal layer made of indium tin oxide, silver and indium oxide, and the film thickness may be 70 angstroms / 1000 angstroms / 70 angstroms.

[0122] For example, the display panel further includes a support pillar disposed on the side of the pixel defining layer 201 away from the substrate layer 101, for supporting the touch layer of the display panel to improve the pressure resistance of the display panel. Figure 15 is a schematic partial structural diagram of another display panel provided in an embodiment of this application. For example, as shown in Figure 15, the first electrode 205 and the reflective structure are an integral structure, that is, the first electrode 205 itself can act as a reflective structure to focus the light emitted from the light-emitting layer 202. The first electrode 205 completely covers the cover layer 710 to form a patterned first electrode 205 on the surface of the cover layer 710 away from the substrate layer 101. The pixel defining layer 201 is configured to match the shape of the first electrode 205, and a patterned pixel defining layer 201 is formed on the surface of the first electrode 205 away from the substrate layer 101. The first electrode 205 completely covers the cover layer 710, and the pixel defining layer 201 partially covers the first electrode 205, so that the reflective structure forms a step. After the wide-view light emitted from the light-emitting layer 202 passes through the first electrode 205, the light is focused to the display side, avoiding the waste of wide-view light, thereby improving the light utilization rate and increasing the forward light output of the display side.

[0123] For example, as shown in FIG15, the orthographic projection width of the pixel defining layer 201 in the first direction X is a fourth dimension L4, the orthographic projection width of the first electrode 205 between two adjacent light-emitting layers 202 in the first direction X is a fifth dimension L5, and the orthographic projection width of the cover layer 710 in the first direction X is a sixth dimension L6. The size range of the fourth dimension is 7.2μm to 10.4μm, the size range of the fifth dimension L5 is 7.8μm to 15.2μm, and the size range of the sixth dimension L6 is 6.2μm to 9.2μm. The fourth dimension is smaller than the fifth dimension, and the pixel defining layer 201 partially covers the first electrode 205. The fifth dimension is larger than the sixth dimension, and the first electrode 205 completely covers the cover layer 710.

[0124] For example, when the fourth dimension L4 is 7.2 μm, the fifth dimension L5 is 7.8 μm and the sixth dimension L6 is 6.2 μm.

[0125] With the fourth dimension L4 being 8.5 μm, the fifth dimension L5 is 10.3 μm, and the sixth dimension L6 is 7.6 μm.

[0126] With the fourth dimension L4 being 10.4 μm, the fifth dimension L5 is 15.2 μm, and the sixth dimension L6 is 9.2 μm.

[0127] Figure 16 is a schematic optical path diagram of a display panel provided in an embodiment of this application. Exemplarily, as shown in Figure 16, the width of the light-emitting layer 202 in the first direction X is the seventh dimension L7, the width of the first cutout in the first direction is the first dimension L1, and the width of the second cutout in the first direction is the second dimension L2. The first electrode 205 and the reflective structure are integrally formed. The angle between the first electrode 205 and the plane containing the substrate layer 101 is the first angle A, and the angle between the first ray S1 emitted from the light-emitting layer 202 and the normal is the first emission angle a1. The angle range of the first angle A is 40° to 70°, and the angle range of the first emission angle a1 is 60° to 80°. The width range of the fifth dimension is 8 to 10 μm, the width range of the first dimension L1 is 9 to 11 μm, and the width range of the second dimension L2 is 9 to 11 μm.

[0128] For example, the first included angle A can be 45°, 60°, or 70°. The first light emission angle a1 can be 70° or 85°. The width of the fifth dimension can be 9 μm, the width of the first dimension L1 can be 10 μm, and the width of the second dimension L2 can be 10 μm. The first included angle A, the first light emission angle a1, the first dimension L1, the second dimension L2, and the fifth dimension L5 can all be adjusted according to the actual processing error to improve processing efficiency.

[0129] The formulas for calculating the angle of incidence and the angle of refraction are as follows: n0 × Sinθn0 = n1 × Sinθn1, where n0 is the refractive index of the incident light medium, n1 is the refractive index of the refracting light medium, θn0 is the angle of incidence, and θn1 is the angle of exit. For example, the first included angle A is 70°, and the first exit angle a1 is 60°. The first ray S1 emitted from the light-emitting layer 202 is deflected when it enters different media. According to the calculation formula, the angle of incidence a11 of the first ray S1 incident on the first electrode 205 is 50°. After reflection by the first electrode 205, the first ray S1 becomes the second ray S2. The second ray S2, passing through the first inorganic encapsulation layer 501, is incident on the first organic encapsulation layer 503 at the second included angle a2, which is 20°. The second ray S2, after exiting the first organic encapsulation layer 503, becomes the third ray S3. The exit angle of the third ray S3 is the third included angle α3. The incident angle of the third ray S3 onto the second inorganic encapsulation layer 502 is equal to the third included angle α3. The refractive index range of the first inorganic encapsulation layer 501 is 1.6 to 1.8, and the refractive index range of the first organic encapsulation layer 503 is 1.45 to 1.55. According to the calculation formula, the angle range of the third included angle α3 is 20.67° to 25.12°. The third ray S3, after exiting the second inorganic encapsulation layer 502, becomes the fourth ray S4. The exit angle of the fourth ray S4 is the fourth included angle α4. The incident angle of the fourth ray S4 onto the isolation layer 300 is equal to the fourth included angle α4. The refractive index range of the second inorganic encapsulation layer 502 is 1.8 to 1.9. According to the calculation formula, the angle range of the fourth included angle α4 is 15.63° to 21.44°. The fourth ray S4 exits through the second inorganic encapsulation layer 502 to become the fifth ray S5. The exit angle of the fifth ray S5 is the fifth included angle a5. The incident angle of the fifth ray S5 onto the protective layer 340 is equal to the fifth included angle a5. The refractive index of the isolation layer 300 ranges from 1.5 to 1.6. According to the calculation formula, the angle range of the fifth included angle a5 is 17.46° to 27.58°. The minimum total offset distance L8 of the horizontal components of the third ray S3, the fourth ray S4, and the fifth ray S5 in the first direction X is: tan(20.67°)×8.5+tan(15.63°)×1.5+tan(17.64°)×12=7.44um. The maximum total offset distance L8 of the horizontal components of the third ray S3, the fourth ray S4, and the fifth ray S5 in the first direction X is: tan(25.12°)×8.5+tan(21.44°)×1.5+tan(27.58°)×12=10.84um. Since the seventh dimension L7 is 9μm and the second dimension is 9μm.When the total offset distance of the horizontal components of the third ray S3, fourth ray S4, and fifth ray S5 in the first direction X is between 7.44 and 9 μm, since the fifth dimension L5 is equal to the second dimension L2, the fifth ray S5 is directly emitted from the second cutout of the second light-shielding structure 402 to the display side D. When the total offset distance of the horizontal components of the third ray S3, fourth ray S4, and fifth ray S5 in the first direction X is between 9 and 10.84 μm, the fifth ray S5 is blocked by the light-shielding strip on the left side of the cutout of the second light-shielding structure. This ensures that when the wide viewing angle of the light emitted from the light-emitting layer is 60°, part of the light is blocked by the second light-shielding structure 402, while part of the light can be emitted through the cutout of the second light-shielding structure 402, thereby changing the light path and improving light leakage at a wide viewing angle.

[0130] Figure 17 is a schematic optical path diagram of another display panel provided in an embodiment of this application. Referring to Figure 17, for example, the first included angle A is 70°, and the first emission angle is 80°. The first light ray S1 emitted from the light-emitting layer 202 is deflected upon entering different media. According to the calculation formula, the incident angle of the first light ray S1 to the first electrode 205 is 30°. After reflection by the first electrode 205, the first light ray S1 becomes the second light ray S2. The refractive index range of the first inorganic encapsulation layer 501 is 1.6 to 1.8, and the refractive index range of the first organic encapsulation layer 503 is 1.45 to 1.55. According to the calculation formula, the incident angle of the second light ray S2 to the first inorganic encapsulation layer 501 is 30°. The second light ray S2 is emitted through the first inorganic encapsulation layer 501 to become the third light ray S3. The emission angle of the third light ray S3 emanating from the first organic encapsulation layer 503 ranges from 31.07° to 38.37°. The refractive index of the second inorganic encapsulation layer 502 ranges from 1.8 to 1.9. The minimum incident angle of the third ray S3 incident on the second inorganic encapsulation layer 502 is equal to 180° - 40° - 90° - 38.37° = 11.63°, and the maximum incident angle of the third ray S3 incident on the second inorganic encapsulation layer 502 is equal to 180° - 40° - 90° - 31.07° = 18.93°. Therefore, according to the calculation formula, the incident angle of the third ray S3 incident on the second inorganic encapsulation layer 502 ranges from 11.63° to 18.93°. The third ray S3 is refracted by the second inorganic encapsulation layer 502 to obtain the fourth ray S4. The incident angle of the fourth ray S4 incident on the isolation layer 300 ranges from 8.85° to 16.22°, that is, the exit angle of the fourth ray S4 from the first organic encapsulation layer 503 ranges from 8.85° to 16.22°. The fourth ray S4 is refracted through the second inorganic encapsulation layer 502 to obtain the fifth ray S5. The refractive index of the first isolation layer 310 ranges from 1.5 to 1.6. According to the calculation formula, the incident angle of the fifth ray S5 on the protective layer 340 ranges from 9.97° to 20.72°, that is, the exit angle of the fifth ray S5 from the second inorganic encapsulation layer 502 ranges from 9.97° to 20.72°. The minimum total offset distance L8 of the horizontal components of the third ray S3, the fourth ray S4, and the fifth ray S5 in the first direction X is: 0.7 / tan(70°) + tan(11.63°) × 8.5 + tan(8.85°) × 1.5 + tan(9.97°) × 12 = 4.35 μm. The maximum total offset distance L8 of the horizontal components of the third ray S3, the fourth ray S4, and the fifth ray S5 in the first direction X is: 0.7 / tan(70°)+tan(18.93°)×8.5+tan(16.22°)×1.5+tan(20.72°)×12=8.15um.The calculations above show that when the total offset distance of the horizontal components of the third ray S3, the fourth ray S4, and the fifth ray S5 in the first direction X is between 4.35 and 8.15 μm, and since the seventh dimension L7 is 9 μm and the second dimension is 9 μm, the light can directly exit from the cutout of the second light-shielding structure 402 to the display side D. This ensures that when the viewing angle is 80°, most of the light will exit from the cutout of the second light-shielding structure 402, thereby changing the light path, improving the brightness at the normal viewing angle, and reducing light leakage at large viewing angles.

[0131] It should be noted that rays with a first exit angle α greater than or equal to 60° are considered wide-angle rays.

[0132] For example, the light-shielding structure 400 includes a first light-shielding structure 401, a second light-shielding structure 402, and a third light-shielding structure 404. The angle between the extended surfaces of the sides of the three light-shielding structures and the plane containing the substrate layer 101 ranges from 70° to 90°. When the angle between the extended surfaces of the sides of the light-shielding structures and the plane containing the substrate layer 101 is 70°, a portion of the wide-viewing-angle light emitted from the light-emitting layer is blocked by the light-shielding structure towards the bottom surface of the substrate layer, and a portion is blocked by the sides of the light-shielding structure. When the angle between the extended surfaces of the sides of the light-shielding structures and the plane containing the substrate layer 101 is 90°, the wide-viewing-angle light emitted from the light-emitting layer is blocked by the light-shielding structure towards the bottom surface of the substrate layer, and the positive-viewing-angle light emitted from the light-emitting layer 202 directly passes through the first and second cutouts and is emitted to the display side D.

[0133] This embodiment of the application sets up a two-layer light-shielding structure to perform two light-shielding processes. The first light-shielding structure 401 performs a first light-shielding process on the wide-viewing-angle light emitted from the light-emitting layer 202, and the second light-shielding structure 402 performs a second light-shielding process on the light emitted from the light-emitting layer. The light passing through the second light-shielding structure has a deflection distance in the first direction X. If the deflection distance is greater than the width of the cutout, the light is blocked by the light-shielding structure; if the deflection distance is less than the width of the cutout, different light-shielding effects can be achieved by adjusting the width of the cutout, thereby achieving different display effects.

[0134] In some embodiments, the reflective structure includes two reflective layers, which can be a first reflective layer and a second reflective layer. The first reflective layer can be fabricated using the same process as the first electrode, and the second reflective layer can be fabricated using the same process as the second electrode. Placing the reflective layer and the electrode layer in the same layer can save processing steps and reduce processing costs.

[0135] In some embodiments, the reflective structure includes a two-stage stepped structure, wherein each stage of the stepped structure includes two stepped surfaces. The extended surface of one stepped surface intersects with the plane of the substrate layer, and the plane of the other stepped surface is parallel to the plane of the substrate layer. By setting the stepped structure, light rays emitted from the light-emitting layer at different angles can be reflected in a gradient, thereby converging light from a wider viewing angle and improving display brightness.

[0136] Figure 18 is a schematic partial structural diagram of another display panel provided in an embodiment of this application. Exemplarily, as shown in Figure 18, the reflective structure 203 forms a stepped structure on the surface of the pixel defining layer 201 away from the substrate layer 101. The reflective structure 203 may include a first-level stepped structure and a second-level stepped structure. The first stepped surface 222 and the second stepped surface 223 form the first-level stepped structure. The third stepped surface 224 and the fourth stepped surface 225 form the second-level stepped structure. The extended surface of the second stepped surface 223 intersects the plane where the substrate layer 101 is located, and the extended surface of the fourth stepped surface 225 intersects the plane where the substrate layer 101 is located. The plane where the first stepped surface 222 is located is parallel to the plane where the substrate layer 101 is located, and the plane where the third stepped surface 224 is located is parallel to the plane where the substrate layer 101 is located. The wide-viewing-angle light emitted from the light-emitting layer 202 enters the first-level stepped structure and the second-level stepped structure respectively. The incident light angle entering the first-level stepped structure is greater than the incident light angle entering the second-level stepped structure. Through the setting of the two-level stepped structure, the wide-viewing-angle light emitted from the light-emitting layer 202 can be gradient reflected, thereby converging the light from a wider angle and improving the display brightness.

[0137] For example, as shown in Figure 18, the reflective structure 203 is embedded within the pixel defining layer 201. The shape of the pixel defining layer 201 matches the reflective structure 203. The pixel defining layer 201 can also be a stepped structure. The orthographic projection of the pixel defining layer 201 onto the substrate completely covers the orthographic projection of the stepped structure 221 onto the substrate 101. By placing the reflective structure within the pixel defining layer, when light emitted from the light-emitting layer 202 enters the pixel defining layer 201, the reflective structure 203 can focus the light emitted from the light-emitting layer 202 onto the display side D, preventing the light emitted from the light-emitting layer from being absorbed by the pixel defining layer, thereby improving the light extraction efficiency of the display panel and increasing the display brightness.

[0138] In some embodiments, the pixel defining layer includes two defining layers, with the defining layer farther from the substrate layer covering the defining layer closer to the substrate layer, and the reflective structure disposed between the two defining layers. The two defining layers can enable the reflective structure to include a multi-level stepped structure, thereby converging light from a wider viewing angle, improving the light emission rate of the display panel, and thus improving the display brightness.

[0139] A second aspect of the embodiments of this application includes a display panel as described in the first aspect. FIG19 is a schematic structural diagram of a display device provided in an embodiment of this application. As shown in FIG19, the display device 2000 includes a display panel 1000.

[0140] The display device provided in this application embodiment concentrates the wide-viewing-angle light emitted from the light-emitting layer by setting a reflective structure within the pixel opening, thereby increasing the brightness of the emitted light at the normal viewing angle. Then, through at least two layers of light-shielding structures, the viewing angle light reflected by the reflective structures is concentrated towards the normal viewing angle, while effectively blocking the wide-viewing-angle light emitted from the light-emitting layer. This ensures that the light emitted from the light-emitting layer is concentrated and emitted towards the normal viewing angle on the display side for high-brightness image display, while no image is displayed in the wide-viewing-angle direction on the display side. This avoids light leakage at wide viewing angles and increases the brightness of the displayed image, greatly improving the privacy protection effect of the display panel and thus preventing traffic accidents.

[0141] The display devices provided in this application embodiment may include televisions, computers, smartphones, smart wearable devices, laptops, and tablets, etc. Smart wearable devices may include smartwatches, AR (augmented reality) devices, and VR (virtual reality) devices, etc.

[0142] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0143] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

[0144] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this specification.

[0145] Obviously, those skilled in the art can make various modifications and variations to this specification without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, this specification is also intended to include such modifications and variations.

Claims

1. A display panel, comprising: A driving substrate, the driving substrate comprising a substrate layer and a driving layer; A light-emitting device layer is disposed on the side of the driving layer away from the substrate layer; At least two light-shielding structures are provided, wherein the light-shielding structures are disposed on the side of the light-emitting device layer away from the substrate layer, and an isolation layer is provided between the at least two light-shielding structures; The light-emitting device layer includes a pixel defining layer, a light-emitting layer, and a reflective structure. The pixel defining layer includes a plurality of pixel openings. The light-emitting layer is disposed in the pixel openings, and at least a portion of the reflective structure is disposed on the inner wall of the pixel openings. The light-shielding structure has multiple cutouts, and the orthogonal projection of the cutouts on the substrate layer covers the orthogonal projection of the pixel opening on the substrate layer.

2. The display panel according to claim 1, wherein, The orthographic projection of the light-shielding structure on the substrate layer does not overlap with the orthographic projection of the pixel opening on the substrate layer, and the orthographic projection of the light-shielding structure on the substrate layer does not overlap or only partially overlaps with the orthographic projection of the reflective structure on the substrate layer.

3. The display panel according to claim 2, wherein, The light-shielding structure includes a first light-shielding structure and a second light-shielding structure. The second light-shielding structure is disposed on the side of the light-emitting device layer away from the substrate layer, and the first light-shielding structure is disposed between the second light-shielding structure and the light-emitting device layer. At least one first insulating layer is provided between the second light-shielding structure and the first light-shielding structure; and / or, At least one second isolation layer is provided between the second light-shielding structure and the first light-shielding structure; The first isolation layer and the second isolation layer are made of different materials. The thickness of a single layer of the second isolation layer in the second direction is the same as the thickness of a single layer of the first isolation layer in the second direction, wherein the second direction is a direction perpendicular to the plane of the substrate layer.

4. The display panel according to claim 3, wherein, The distance between the first light-shielding structure and the second light-shielding structure in the second direction is the first spacing; The distance between the first light-shielding structure and the light-emitting device layer in the second direction is the second spacing; The first spacing is greater than the second spacing.

5. The display panel according to claim 4, wherein, The size range of the first spacing is 10 μm to 14 μm.

6. The display panel according to claim 3, wherein, include: The first light-shielding structure includes a first cutout, and the second light-shielding structure includes a second cutout, wherein the orthographic projection of the second cutout on the substrate layer covers the orthographic projection of the first cutout on the substrate layer; The size of the first cutout in the first direction is less than or equal to the size of the second cutout in the first direction, wherein the first direction is the direction of the line connecting adjacent pixel openings.

7. The display panel according to claim 3, wherein, The light-shielding structure includes a third light-shielding structure, which is disposed between the first light-shielding structure and the light-emitting device layer. The orthogonal projection of the third light-shielding structure on the substrate layer does not overlap with the orthogonal projection of the pixel opening on the substrate layer. At least one first insulating layer is provided between the first light-shielding structure and the third light-shielding structure; and / or, At least one second isolation layer is provided between the first light-shielding structure and the third light-shielding structure.

8. The display panel according to claim 7, wherein, The distance between the first light-shielding structure and the second light-shielding structure in the second direction is the third spacing; The distance between the first light-shielding structure and the third light-shielding structure in the second direction is the fourth spacing; The fourth spacing is greater than the third spacing.

9. The display panel according to claim 8, wherein, The third spacing has a size range of 6 μm to 10 μm; and / or, The fourth spacing has a size range of 10 μm to 16 μm.

10. The display panel according to claim 7, wherein, The first light-shielding structure includes a first hollow, the second light-shielding structure includes a second hollow, and the third light-shielding structure includes a third hollow. The orthographic projection of the second cutout on the substrate layer covers the orthographic projection of the first cutout on the substrate layer, and the orthographic projection of the first cutout on the substrate layer covers the orthographic projection of the third cutout on the substrate layer; The size of the third cutout in the first direction is the same as the size of the first cutout in the first direction; and / or, The size of the third cutout in the first direction is the same as the size of the second cutout in the first direction.

11. The display panel according to claim 7, wherein, The thickness of the first light-shielding structure in the second direction is the same as the thickness of the second light-shielding structure in the second direction; and / or, The thickness of the first light-shielding structure in the second direction is the same as the thickness of the third light-shielding structure in the second direction.

12. The display panel according to any one of claims 1 to 11, wherein, The driving layer includes pixel circuitry; The light-emitting device layer includes a first electrode and a second electrode, and the light-emitting layer is disposed between the first electrode and the second electrode; The reflective structure and the first electrode are an integral part of each other.

13. The display panel according to any one of claims 1 to 11, wherein, The light-emitting device layer includes a first electrode and a second electrode, and the light-emitting layer is disposed between the first electrode and the second electrode; The reflective structure includes at least two reflective layers; At least one of the reflective layers is disposed in the same layer as the first electrode; and / or, At least one of the reflective layers is disposed in the same layer as the second electrode.

14. The display panel according to claim 12, wherein, The reflective structure includes at least two stepped structures, each step structure including at least two stepped surfaces, and at least one extended surface of the stepped surface intersects the plane of the substrate layer.

15. The display panel according to claim 14, wherein, The reflective structure is embedded within the pixel defining layer, and the orthographic projection of the pixel defining layer on the substrate layer covers the orthographic projection of the stepped structure on the substrate layer.

16. The display panel according to claim 14, wherein, The pixel defining layer includes at least two defining layers, wherein the defining layer farther from the substrate layer covers the defining layer closer to the substrate layer; The reflective structure is disposed between the two defining layers.

17. A display device, wherein, include: The display panel as described in any one of claims 1 to 16.

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