Display panel and display device

Abstract

The invention discloses a display panel and a display device, relates to the technical field of display, and can reduce the problem of large-viewing-angle light leakage of the display panel and improve the peep-proof effect of the display panel. The display panel comprises a driving substrate, and the driving substrate comprises a substrate layer and a driving layer; the light-emitting device layer is arranged on the side, away from the substrate layer, of the driving layer; the at least two shading structures are arranged on the side, away from the substrate layer, of the light emitting device layer, and an isolation layer is arranged between the at least two shading structures; the light-emitting device layer comprises a pixel defining layer, a light-emitting layer and a reflection structure, the pixel defining layer comprises a plurality of pixel openings, the light-emitting layer is arranged on the pixel openings, and at least part of the reflection structure is arranged on the inner walls of the pixel openings; the shading structure is provided with a plurality of hollows, and orthographic projections of the hollows on the substrate layer cover orthographic projections of the pixel openings on the substrate layer.

Description

Technical Field

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

[0002] At present, with the continuous development of display technology, anti-peeping technology is gradually combined with reality technology and has been widely used. In anti-peeping display technology, both anti-peeping effect and display effect need to be taken into account. However, the existing anti-peeping display screen usually causes the display brightness to decrease due to the setting of the anti-peeping function, and there is also a problem of light leakage at a large viewing angle, resulting in poor anti-peeping effect. Summary of the invention

[0003] The embodiments of the present application provide a display panel and a display device, which can reduce the problem of light leakage at a large viewing angle of the display panel and improve the anti-peeping effect of the display panel.

[0004] According to a first aspect of an embodiment of the present application, a display panel is provided, comprising:

[0005] A driving substrate, the driving substrate comprising a substrate layer and a driving layer;

[0006] A light emitting device layer, wherein the light emitting device layer is arranged on a side of the driving layer away from the substrate layer;

[0007] At least two layers of light-shielding structures, wherein the light-shielding structures are arranged on a side of the light-emitting device layer away from the substrate layer, and an isolation layer is arranged between at least two layers of the light-shielding structures;

[0008] 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 arranged at the pixel openings, and at least part of the reflective structure is arranged on the inner wall of the pixel opening;

[0009] The light shielding structure is provided with a plurality of hollows, and the orthographic projections of the hollows on the substrate layer cover the orthographic projections of the pixel openings on the substrate layer.

[0010] In some embodiments, the orthographic projection of the shading 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 shading structure on the substrate layer does not overlap or partially overlaps with the orthographic projection of the reflective structure on the substrate layer.

[0011] In some embodiments, the light shielding structure includes a first light shielding structure and a second light shielding structure, the second light shielding structure is disposed on a 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;

[0012] At least one first isolation layer is disposed between the second light-shielding structure and the first light-shielding structure; and / or,

[0013] At least one second isolation layer is provided between the second light-shielding structure and the first light-shielding structure;

[0014] The first isolation layer and the second isolation layer are made of different materials, and 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 where the substrate layer is located.

[0015] 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;

[0016] The distance between the first light shielding structure and the light emitting device layer in the second direction is a second spacing;

[0017] The first interval is greater than the second interval.

[0018] In some embodiments, the first spacing has a size ranging from 10 μm to 14 μm.

[0019] In some embodiments, the first light-shielding structure layer includes a first hollowing, the second light-shielding structure layer includes a second hollowing, and the orthographic projection of the second hollowing on the substrate layer covers the orthographic projection of the first hollowing on the substrate layer;

[0020] The size of the first hollow in the first direction is smaller than or equal to the size of the second hollow in the first direction, wherein the first direction is the direction of a line connecting adjacent pixel openings.

[0021] In some embodiments, the light shielding structure includes a third light shielding structure, the third light shielding structure is disposed between the first light shielding structure and the light emitting device layer, and 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;

[0022] At least one first isolation layer is disposed between the first light-shielding structure and the third light-shielding structure; and / or,

[0023] At least one second isolation layer is arranged between the first light-shielding structure and the third light-shielding structure.

[0024] In some embodiments, the distance between the first layer of light shielding structure and the second layer of light shielding structure in the second direction is a third spacing;

[0025] The distance between the first light shielding structure and the third light shielding structure in the second direction is a fourth distance;

[0026] The fourth interval is greater than the third interval.

[0027] In some embodiments, the third spacing has a size ranging from 6 μm to 10 μm; and / or,

[0028] The fourth spacing has a size ranging from 10 μm to 16 μm.

[0029] In some embodiments, the first light-shielding structure layer includes a first hollowing, the second light-shielding structure layer includes a second hollowing, and the third light-shielding structure layer includes a third hollowing;

[0030] The orthographic projection of the second hollowing out on the substrate layer covers the orthographic projection of the first hollowing out on the substrate layer, and the orthographic projection of the first hollowing out on the substrate layer covers the orthographic projection of the third hollowing out on the substrate layer;

[0031] The size of the third hollowing out in the first direction is the same as the size of the first hollowing out in the first direction; and / or,

[0032] A size of the third hollowing in the first direction is the same as a size of the second hollowing in the first direction.

[0033] In some embodiments, the thickness of the first light shielding structure layer in the second direction is the same as the thickness of the second light shielding structure layer in the second direction; and / or,

[0034] The thickness of the first light shielding structure layer in the second direction is the same as the thickness of the third light shielding structure layer in the second direction.

[0035] In some embodiments, the driving layer includes a pixel circuit;

[0036] The light emitting device layer comprises a first electrode and a second electrode, and the light emitting layer is arranged between the first electrode and the second electrode;

[0037] The reflective structure and the first electrode are an integrated structure.

[0038] 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;

[0039] The reflective structure comprises at least two reflective layers;

[0040] At least one reflective layer is disposed on the same layer as the first electrode; and / or,

[0041] At least one reflective layer is disposed on the same layer as the second electrode.

[0042] In some embodiments, the reflective structure includes at least two-level stepped structures, the stepped structure includes at least two step surfaces, and an extended surface of at least one of the step surfaces intersects with the plane where the substrate layer is located.

[0043] In some embodiments, the reflective structure is embedded in the pixel defining layer, and an orthographic projection of the pixel defining layer on the substrate layer covers an orthographic projection of the step structure on the substrate layer.

[0044] In some embodiments, the pixel definition layer includes at least two definition layers, and the definition layer far away from the substrate layer is coated on the definition layer close to the substrate layer;

[0045] The reflective structure is arranged between the two defining layers.

[0046] According to a second aspect of an embodiment of the present application, a display device is provided, including:

[0047] A display panel as described in the first aspect.

[0048] The display panel provided by the embodiment of the present application, by setting a reflective structure in the area where the pixel opening is located, reflects and converges the wide-angle light emitted by the light-emitting layer, improves the brightness of the light emitted at the positive angle, and then converges the angle light reflected by the reflective structure to the positive angle direction through at least two layers of shading structure, and effectively shields the wide-angle light emitted by the light-emitting layer, so that the light emitted by the light-emitting layer is concentrated in the positive angle direction of the display side to display a bright picture, and the wide-angle direction of the display side does not display the picture, which plays a wide-angle shading effect. It not only avoids the leakage of wide-angle light, but also improves the brightness of the displayed picture, so that the anti-peeping effect of the display panel is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 A schematic partial structural diagram of a display panel provided in an embodiment of the present application;

[0050] Figure 2 A schematic partial structural diagram of a display panel provided in an embodiment of the present application;

[0051] Figure 3 A schematic partial structural diagram of another display panel provided in an embodiment of the present application;

[0052] Figure 4 A schematic partial structural diagram of another display panel provided in an embodiment of the present application.

[0053] Figure 5A schematic partial structural diagram of another display panel provided in an embodiment of the present application;

[0054] Figure 6 A schematic partial structural diagram of a display panel provided in an embodiment of the present application;

[0055] Figure 7 A schematic partial structural diagram of another display panel provided in an embodiment of the present application;

[0056] Figure 8 A schematic partial structural diagram of another display panel provided in an embodiment of the present application;

[0057] Fig. 9 A schematic partial structural diagram of another display panel provided in an embodiment of the present application;

[0058] Fig.10 A schematic partial structural diagram of a display panel provided in an embodiment of the present application;

[0059] Fig.11 A schematic partial structural diagram of another display panel provided in an embodiment of the present application;

[0060] Fig.12 A schematic partial structural diagram of another display panel provided in an embodiment of the present application;

[0061] Fig.13 A schematic partial structural diagram of another display panel provided in an embodiment of the present application;

[0062] Fig.14 A schematic partial structural diagram of a display panel provided in an embodiment of the present application;

[0063] Fig.15 A schematic partial structural diagram of another display panel provided in an embodiment of the present application;

[0064] Fig.16 A schematic optical path diagram of a display panel provided in an embodiment of the present application;

[0065] Fig.17 A schematic optical path diagram of another display panel provided in an embodiment of the present application;

[0066] Fig.18 A schematic partial structural diagram of another display panel provided in an embodiment of the present application;

[0067] Fig.19 A schematic structural diagram of a display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0068] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification are described in detail below through 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 article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the statement "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. The term "more than two" includes two or more than two situations.

[0070] At present, the vehicle-mounted anti-peeping products used in the main driving position are mainly vehicle-mounted instrument panels. The core issue is to solve the problem of reflection on the car window, eliminate the hidden dangers to the driver's vision while driving, and reduce the occurrence of traffic accidents. However, in the existing technology, vehicle-mounted anti-peeping products have the problem of light leakage at a large viewing angle, resulting in poor anti-peeping effect of vehicle-mounted products.

[0071] In view of this, the embodiments of the present application provide a display panel and a display device, which can reduce the problem of light leakage at a large viewing angle of the display panel and improve the anti-peeping effect of the display panel.

[0072] According to a first aspect of the embodiments of the present application, a display panel is provided. Figure 1 This is a schematic partial structural diagram of a display panel provided in an embodiment of the present application. Figure 1As shown, the display panel includes a driving substrate 100, and the driving substrate 100 includes a substrate layer 101 and a driving layer 102. The substrate layer 101 can be a flexible substrate or a hard substrate, and the driving layer 102 can include a pixel circuit and a driving circuit. The pixel circuit and the driving circuit of the driving layer 102 can be used to drive the light-emitting device to emit light. The light-emitting device layer 200 is arranged on the side of the driving layer 102 away from the first substrate 101. 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 arranged in the pixel opening 204, and the reflective structure 203 is arranged on the inner wall of the pixel opening 204. The pixel circuit of the driving layer 102 can be electrically connected to the electrode of the light emitting device layer 200, and the driving layer 102 can drive the light emitting layer 202 to emit light. After the wide viewing angle light emitted by the light emitting layer 202 passes through the reflective structure 203 on the inner wall of the pixel opening 204, the reflective structure 203 gathers the viewing angle light emitted by the light emitting layer 202 to the display side D, so as to improve the forward light brightness of the display panel, that is, the wide viewing angle light can be emitted from the pixel opening after changing the propagation path, thereby increasing the light output in the positive viewing angle range. The display panel also includes at least two layers of shading structure.

[0073] Exemplary, reference Figure 1The display panel may further include an encapsulation layer 500, a shading structure is arranged on a side of the encapsulation layer 500 away from the substrate layer 101, and the shading structure 400 may include a first shading structure 401 and a second shading structure 402. The second shading structure 402 is arranged on a side of the light emitting device layer 200 away from the substrate layer 101, and the first shading structure 401 is arranged between the second shading structure 402 and the light emitting device layer 200. The two shading structures can perform two shading processes on the wide viewing angle light emitted by the light emitting device layer, so that the shading structure can block the wide viewing angle light and the light leakage between the film layers. The isolation layer 300 is arranged between the first shading structure 401 and the second shading structure 402. The isolation layer 300 can be used to space the shading structure, play a flat role, and also play a role in spacing the two shading layers, so that the spacing between the two shading layers, the smaller the spacing distance, the greater the brightness of the display side, and the better the display effect. By adjusting the thickness of the isolation layer 300, the spacing distance between the two light-shielding layers can be adjusted, so that the light-emitting direction of the light passing through the second light-shielding structure 402 and the light-emitting brightness of the display side D are changed, and different display effects are achieved. The light-shielding structure 400 is provided with a plurality of hollows 403, and the orthographic projection of the hollows 403 on the substrate layer 101 covers the orthographic projection of the pixel opening 204 on the substrate layer 101. The orthographic projection of the second light-shielding structure 402 on the substrate layer 101 partially covers the orthographic projection of the first light-shielding structure 401 on the substrate layer 101. By adjusting the coverage range of the orthographic projection of the second light-shielding structure 402 on the substrate layer 101 to cover the orthographic projection of the first light-shielding structure on the substrate layer 101, the size of the hollows on the second light-shielding structure 402 can be adjusted, and the light-emitting direction of the light and the display brightness of the display side D can be changed by adjusting the size of the hollows on the second light-shielding structure 402. By adjusting the width in the first direction X, the wide-angle light reflected by the reflective structure 203 can be shielded, and the wide-angle light emitted by the light-emitting layer 202 can be shielded. By setting the first light-shielding structure to cover the second light-shielding structure, the direction of the light and the brightness of the light can be further adjusted. At the same time, the wide-angle light emitted by the light-emitting layer 202 can also be effectively shielded to avoid the color deviation problem caused by mixed light. The wide-angle light shielding can also achieve an anti-peeping effect. The forward light emitted by the light-emitting layer 202 can be directly emitted to the display side D of the display panel through the hollow 403 of the light-shielding structure 400. The wide-angle light emitted by 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 hollow 403 of the light-shielding structure 400 to the display side D.The setting of the reflective structure 203 can change the optical path of the wide-angle light emitted by the light-emitting layer, that is, by setting a reflective structure 203 on the inner wall of the pixel opening 204, the wide-angle light of the light-emitting layer 202 is gathered to increase the brightness of the positive light output on the display side D. At the same time, at least two layers of shading structures 400 are used to block the wide-angle light emitted by the light-emitting layer at least twice, which can prevent the wide-angle light emitted by the light-emitting layer 202 from leaking, so that the light emitted by the light-emitting layer 202 is concentrated in the positive viewing direction of the display side D for picture display, and the picture is not displayed in the wide viewing direction of the display side D, thereby improving the anti-peeping effect.

[0074] It should be noted that the reference Figure 1 The light-emitting layer 202 can be driven by an anode and a cathode to emit light. The anode is arranged below the light-emitting layer 202, and the cathode is arranged 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 a pixel circuit, and the pixel circuit 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, the anode, the cathode, and the pixel defining layer 201 can form a light-emitting device layer.

[0075] Generally, common anti-peeping technologies mainly include controlling the device's viewing angle light emission by controlling the liquid crystal deflection; controlling the viewing angle light emission by black matrix; and adjusting the viewing angle light emission by lens array, etc. However, the current traditional anti-peeping structures all have problems such as insufficient brightness at the front viewing angle and light leakage at a large viewing angle, which exposes the reflection of the dashboard window to the driver when driving, resulting in unclear vision and prone to traffic accidents.

[0076] The display panel provided by the embodiment of the present application can change the optical path of the wide-angle light emitted by the light-emitting layer by setting a reflective structure in the pixel opening, thereby converging the wide-angle light emitted by the light-emitting layer, improving the brightness of the light emitted at the positive viewing angle, and reducing the wide-angle light emitted, which can prevent peeping; in addition, at least two layers of shading structures can be used to effectively block the wide-angle light reflected by the reflective structure, further playing an anti-peeping role. Therefore, the setting of the reflective structure and the shading layer allows the light emitted by the light-emitting layer to be concentrated in the positive viewing angle direction of the display side to display a bright picture, and the wide-angle direction of the display side does not display the picture, which not only avoids the leakage of wide-angle light, but also improves the brightness of the displayed picture, so that the anti-peeping effect of the display panel is greatly improved, thereby avoiding traffic accidents.

[0077] Figure 2 A schematic partial structural diagram of a display panel provided in an embodiment of the present application. For example, Figure 2As shown, the driving substrate 100 includes a substrate layer 101 and a driving layer 102, and the substrate layer includes 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 the thin film transistor, and the second source-drain electrode layer 129 can be used to set a signal line and connect the source or drain to the electrode of the light-emitting device, so as to provide a driving signal for the light-emitting device. A first gate layer 124 is arranged between the second buffer layer 112 and the first gate insulating layer 114, and a first semiconductor layer 127 is arranged between the first gate insulating layer 114 and the second buffer layer 112. The second gate layer 125 is disposed between the first gate insulating layer 114 and the second gate insulating layer 115 , the third gate layer 126 is disposed between the third gate insulating layer 116 and the inter-insulating layer 117 , and the second semiconductor layer 130 is disposed between the third gate layer 126 and the third buffer layer 113 .

[0078] Exemplarily, the driving layer 102 may include a pixel circuit, the pixel circuit includes a thin film transistor, the thin film transistor includes a source electrode, a drain electrode, a gate electrode and a semiconductor layer, the first semiconductor layer 127 and the second semiconductor layer 130 may be used to form a semiconductor layer of the thin film transistor, the first gate layer 124, the second gate layer 125 and the third gate layer 126 may be used to form a gate electrode and part of the signal line, and the first source-drain electrode layer 128 may be used to form a source electrode and a drain electrode. The thin film transistor 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] Exemplarily, the backplane is prepared by the driving substrate process, and the driving substrate also includes a thin film crystal switch and a storage capacitor. After the backplane is prepared, the light-emitting device layer, the encapsulation layer and other functional film layers are prepared by evaporation and packaging processes. The light-emitting device layer may include a red light-emitting layer, a green light-emitting layer and a blue light-emitting layer, and the functional film layer may also include a hole generation layer, a hole transport layer, an electron transport layer, an electron injection layer, a cathode, CPL (light extraction layer and protective layer) and LiF (lithium fluoride layer / transparent film encapsulation layer), which are mainly prepared in an organic cavity and a metal cavity by vacuum evaporation. CPL can form a first layer of protection for the cathode, reduce the surface plasma polaritons near the metal electrode, increase the transmittance of the cathode, and improve the light extraction efficiency. LiF can isolate water and oxygen, prevent water vapor from penetrating into the display panel, and affect the display effect.

[0080] In some embodiments, the orthographic projection of the light-shielding structure 400 on the substrate layer 101 does not overlap with the orthographic projection of the pixel opening on the substrate layer 101, and the orthographic viewing angle light emitted by the light-emitting layer 202 directly passes through the hollow 403 of the light-shielding structure 400 and is emitted to the display side for image display, which can avoid the light-shielding structure 400 from blocking the light-emitting layer 202 and affecting the forward light emission of the light-emitting layer 202, and can ensure that the pixel opening rate is not affected. The orthographic projection of the light-shielding structure 400 on the substrate layer 101 does not overlap or partially overlaps with the orthographic projection of the reflective structure 203 on the substrate layer 101.

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

[0082] In some examples, when the orthographic projection of the shading structure 400 on the substrate layer 101 partially overlaps with the orthographic projection of the reflective structure 203 on the substrate layer 101, the side of the shading structure 400 is an inclined surface, and a portion of the wide viewing angle light emitted by the light-emitting layer 202 is directly emitted to the display side through the hollow of the shading structure 400 after being reflected by the reflective structure 203, and a portion of the light is shielded for the second time through the inclined surface of the shading structure 400, blocking the emission of the wide viewing angle light and preventing light leakage. Through the setting of the shading structure, the reflective structure and the pixel opening, the wide viewing angle light can be gathered once and shielded twice, which greatly improves 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, the second isolation layer may be a polyacrylate, the thickness of a single-layer second isolation layer in the second direction is greater than the thickness of a single-layer first isolation layer in the second direction, wherein the second direction is a direction perpendicular to the plane where the substrate layer is located.

[0084] Figure 3 A schematic partial structural diagram of another display panel provided in an embodiment of the present application, Figure 4 A schematic partial structural diagram of another display panel provided in an embodiment of the present application. Figure 3 As shown, in the case where a first isolation layer 310 may be disposed between the second light shielding structure 402 and the first light shielding structure 401 , the first isolation layer 310 may be an organic resin.

[0085] For example, Figure 4 As shown, in the case where a multi-layer first isolation layer 310 can be arranged between the second light-shielding structure 402 and the first light-shielding structure 401, the multi-layer first isolation layer 310 can 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 organic resins, and the four layers of organic resin can be prepared by four processes. Among them, the thickness of each of the four sub-isolation layers in the second direction Y is the same, and the sum of the thickness of the four sub-isolation layers in the second direction Y is the same as the total thickness of the multi-layer first isolation layer 310 in the second direction Y. By setting the isolation layer, the spacing between the first light-shielding structure and the second light-shielding structure can be adjusted. Different spacings result in different light outputs on the display side D and different display effects.

[0086] Figure 5 A schematic partial structural diagram of another display panel provided in an embodiment of the present application, Figure 6 A schematic partial structural diagram of a display panel provided in an embodiment of the present application. For example, Figure 5 As shown, 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 arranged on the side of the light-emitting device layer 200 away from the substrate layer 101, and the first organic encapsulation layer 503 is arranged 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 the light-emitting device layer and prevent the light-emitting device from being corroded by external water vapor. The encapsulation layer 500 is arranged on the side of the light-emitting device layer 200 away from the substrate layer 101, and the second substrate layer 600 is arranged on the side of the first layer of light-shielding structure 401 away from the substrate layer 101. In the case where a second isolation layer 320 can be provided between the second light-shielding structure 402 and the first light-shielding structure 401, a second substrate layer 600 is provided 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 by the same inkjet printing process, the first organic encapsulation layer 503 and the second isolation layer 320 can both be polyacrylate, the second substrate layer 600 can serve as the substrate of the second isolation layer 320, and the second substrate layer 600 can be silicon oxide, which can make the polyacrylate level during the inkjet printing process, improve the flatness of the second isolation layer, and avoid the problem of disconnection of the subsequent touch layer. By adopting the same process to prepare the first organic encapsulation layer 503 and the second isolation layer 320, frequent equipment replacement during the process preparation can be avoided, and the production capacity of the product can be improved.

[0087] Exemplarily, the first inorganic encapsulation layer 501 and the second inorganic encapsulation layer 502 can be prepared by the same process, which can be a PECVD (plasma enhanced chemical vapor deposition) process or a PEALD (plasma atomic layer deposition) process. The materials of the first inorganic encapsulation layer 501 and the second inorganic encapsulation layer 502 can be the same, and both can be a combination of one or more layers of SiON, SiO and SiN. Exemplarily, the thickness of the first inorganic encapsulation layer 501 in the second direction Y can be the same as the thickness of the second inorganic encapsulation layer 502 in the second direction Y.

[0088] Exemplarily, the thickness of the first inorganic encapsulation layer 501 in the second direction Y may range from 10 nm to 2 μm, the thickness of the second inorganic encapsulation layer 502 in the second direction Y may range from 10 nm to 2 μm, and the thickness of the first organic encapsulation layer in the second direction Y may range from 9 μm to 9.5 μm. The thickness of the first inorganic encapsulation layer 501 in the second direction Y, the thickness of the second inorganic encapsulation layer 502 in the second direction Y, and the thickness of the first organic encapsulation layer in the second direction Y are 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 adjusting the thickness of the first inorganic encapsulation layer 501, the second inorganic encapsulation layer 502, and the first organic encapsulation layer 503. The anti-peeping effect can be improved by thinning the thickness of the first organic encapsulation layer. The thickness 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 requirements of the optical product, which will not be elaborated here.

[0090] Generally, the distance between the light emitting layer and the light shielding structure will affect the light shielding effect of the light shielding structure on light with 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 light shielding structure is poor.

[0091] The present application reduces the thickness of the first organic encapsulation layer 503 in the second direction and reduces the distance between the light-emitting layer and the light-shielding structure, so that the light-shielding structure can block light of a large viewing angle and improve the anti-peeping effect.

[0092] For example, Figure 6As shown, in the case where a plurality of second isolation layers 320 may be provided between the second light shielding structure 402 and the first light shielding structure 401, the plurality 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 may all be polyacrylates, and the four layers of polyacrylate are prepared by four processes. The second substrate layer 600 may be provided 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 the single-layer second isolation layer 320 in the second direction Y is the same as the total thickness of the multi-layer second isolation layer 320 in the second direction Y. The thickness of the single-layer second isolation layer 320 in the second direction Y is the same as the thickness of the single-layer first isolation layer 310 in the second direction Y.

[0093] The embodiment of the present application can set the number and thickness of the first isolation layer between the first shading structure and the second shading structure, and set the number and thickness of the second isolation layer between the first shading structure and the second shading structure according to the actual process capabilities, so that the spacing between the first shading structure and the second shading structure can be adjusted. The brightness of the display screen on the display side is different due to the different spacing between the first shading structure and the second shading structure. By setting the spacing between the first shading structure and the second shading structure, different processing techniques can be compatible, so that the amount of forward light output on the display side is different, so as to achieve different display effects.

[0094] Figure 7 A schematic partial structural diagram of another display panel provided in an embodiment of the present application. For example, Figure 7As shown, an isolation layer 300 is provided between the first light-shielding structure 401 and the second light-shielding structure 402, and an encapsulation layer 500 is provided 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 the light-emitting device layer and prevent the display line board from being damaged after being 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, and 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, and the second spacing H2 is the thickness of the encapsulation layer 500 in the second direction Y. Among them, the first spacing H1 is greater than the second spacing H2. By setting the first spacing H1 to be larger than the second spacing H2, on the one hand, the supporting capacity of the film layer between the first shading structure and the second shading structure is strengthened, and on the other hand, 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 range of the first spacing is 10μm to 14μm. When the first spacing H1 is 12μm, the second spacing H2 can be set to 10μm. When the first spacing H1 is 13μm, the second spacing H2 can be set to 11μm. When the first spacing H1 is 14μm, the second spacing H2 can be set to 12μm. By setting the first spacing H1 to be larger than the second spacing H2, on the one hand, the supporting capacity of the film layer between the first layer of shading structure and the second layer of shading structure is strengthened, and on the other hand, the compressive resistance of the light-emitting device layer is further enhanced, thereby improving the service life of the display panel.

[0096] For example, Figures 1 to 7As shown, 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 preparing the display panel may be: preparing a driving layer 102 on one side of the substrate layer 101, arranging a light-emitting device layer 200 on the side of the driving layer 102 away from the substrate layer 101, arranging a first light-shielding structure 401 and a second light-shielding structure 402 on the side of the light-emitting device layer 200 away from the substrate layer 101, and arranging an isolation layer 300 between the first light-shielding structure 401 and the second light-shielding structure 402, and adjusting the first spacing H1 between the first light-shielding structure 401 and the second light-shielding structure 402, that is, adjusting the thickness of the isolation layer 300 between the first light-shielding structure and the second light-shielding structure in the second direction Y. 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 includes 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, and each of the four sub-isolation layers may have a thickness of 3 μm in the second direction Y. The thickness of one 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 accordingly according to the distance between the first light-shielding structure and the second light-shielding structure.

[0098] It should be noted that the thickness of the isolation layer in the second direction Y of the embodiment of the present application is set corresponding to the spacing between the first light shielding structure and the second light shielding structure. The first spacing is set according to the actual requirements of the optical product 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 thickness of the isolation layer to achieve different display effects. The settings of the first spacing and the thickness of the isolation layer are not listed one by one here.

[0099] In some embodiments, the first layer of light-shielding structure includes a first hollowing, the second layer of light-shielding structure includes a second hollowing, the orthographic projection of the second hollowing on the substrate layer can cover the orthographic projection of the first hollowing on the substrate layer, and the orthographic projection of the second hollowing on the substrate layer can completely cover the orthographic projection of the first hollowing on the substrate layer. In this case, the width of the first layer of light-shielding structure in the first direction is the same as the width of the second layer of light-shielding structure in the first direction, and the first direction is the direction of the connection line of adjacent pixel openings. The orthographic projection of the second hollowing on the substrate layer can partially cover the orthographic projection of the first hollowing on the substrate layer. In this case, the width of the first layer of light-shielding structure in the first direction is less than the width of the second layer of light-shielding structure in the first direction.

[0100] For example, Figure 7 As shown, the size of the first hollow in the first direction X is the first size L1, and the size of the second hollow in the first direction is the second size L2. When the first size L1 is smaller than the second size L2, the orthographic projection of the second hollow on the substrate layer partially covers the orthographic projection of the first hollow on the substrate layer. After the large viewing angle light emitted by the light-emitting layer is reflected by the reflective structure, the first layer of the shading structure performs the first shading on the large viewing angle light, and the second layer of the shading structure performs the second shading and the second reflection. When the third size L3 is equal to the second size L2, the orthographic projection of the second hollow on the substrate layer completely covers the orthographic projection of the first hollow on the substrate layer, and the orthographic projection of the second hollow on the substrate layer coincides with the orthographic projection of the first hollow on the substrate layer. After the large viewing angle light emitted by the light-emitting layer is reflected by the reflective structure, the first layer of the shading structure performs the first shading on the large viewing angle light, and the second layer of the shading structure performs the second shading. The larger the fourth size, the brighter the light output on the display side, and the better the display effect of the display screen. By setting the sizes of the first hollow and the second hollow in the first direction, different display effects can be achieved.

[0101] Figure 8 A schematic partial structural diagram of another display panel provided in an embodiment of the present application. Figure 8 As shown, the shading structure 400 includes a third-layer shading structure 404, which is disposed between the first-layer shading structure 401 and the light-emitting device layer 200, and is disposed close to the surface of the light-emitting device layer 220 away from the substrate layer 101. Exemplarily, the third-layer shading structure 404 is disposed between the first inorganic encapsulation layer 501 and the first organic encapsulation layer 503, and the orthographic projection of the third-layer shading 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-layer shading structure blocking the forward light emitted by the light-emitting layer. Compared with the first-layer shading structure 401 and the second-layer shading structure 402, the third-layer shading structure 404 is closer to the light-emitting layer 202, and can better shield the light with a large viewing angle, and achieve a better anti-peeping effect through three shading processes.

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

[0103] Fig. 9 A schematic partial structural diagram of another display panel provided in an embodiment of the present application. For example, Fig. 9As shown, 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 by the same process, and 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 can be adjusted to the thickness of the second isolation layer 320 in the second direction Y according to the actual needs of different optical products. The isolation layers between two adjacent light-shielding structures are prepared by the same process, which can save one process and improve product processing efficiency.

[0104] Fig.10 A schematic partial structural diagram of a display panel provided in an embodiment of the present application. For example, Fig.10 As shown, a plurality of first isolation layers 310 may be arranged between the first light-shielding structure 401 and the third light-shielding structure 404, and a plurality of first isolation layers 310 may also be arranged between the second light-shielding structure 402 and the first light-shielding structure 401. Schematically, the plurality 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. A first isolation layer 311 and a second isolation layer 312 may be arranged between the first light-shielding structure 401 and the third light-shielding structure 404, and a third isolation layer 313 and a fourth isolation layer 314 may be arranged 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 may be prepared by the same process, and may all be organic resins. The thickness of the four isolation layers in the second direction Y may be the same or different, and may be adjusted according to the actual needs of different optical products. By preparing the isolation layer using the same process four times, the isolation layers between the first light-shielding structure, the second light-shielding structure and the third light-shielding structure adopt the same process, which can reduce the difficulty of process processing and improve product processing efficiency.

[0105] Fig.11 A schematic partial structural diagram of another display panel provided in an embodiment of the present application. For example, Fig.11As shown, in the case where 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, and the thickness of the first isolation layer 310 in the first direction X may 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 may be prepared by the same inkjet printing process, and a second flat layer 610 is provided on the side of the encapsulation layer 500 away from the substrate layer 101. The second flat layer 610 and the second substrate layer 600 are made of the same material, and both may be silicon oxide. The second flat 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 be adjusted according to the actual needs of different optical products. By adopting the same process to set the first isolation layer 310, the second isolation layer 320 and the first organic encapsulation layer 503 between adjacent shading structures, the difficulty of process processing can be reduced and the product processing efficiency can be improved.

[0106] Exemplarily, 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 layer of second isolation layer 320 in the second direction Y may be the same or different, and may be adjusted according to the actual needs of different optical products. By providing multiple layers of second isolation layers, the optical path of the light is changed to adapt to different display effects.

[0107] Fig.12 A schematic partial structural diagram of another display panel provided in an embodiment of the present application. Fig.12 As shown, 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, so that the first light shielding structure 401 and the third light shielding structure 404, and the first light shielding structure 401 and the second light shielding structure 402 can accommodate isolation layers of different thicknesses to meet different display effects.

[0108] In some embodiments, the third pitch has a size ranging from 6 μm to 10 μm, and the fourth pitch has a size ranging from 10 μm to 16 μm.

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

[0110] In the embodiment of the present application, the number and thickness of the first isolation layer between the first shading structure and the second shading structure, as well as the number and thickness of the second isolation layer between the first shading structure and the second shading structure can be set according to the actual process capabilities, so that the spacing between the first shading structure and the second shading structure can be adjusted, and the spacing between the first shading structure and the third shading structure can be adjusted. The spacing between the first shading structure and the second shading structure is different, and the brightness of the display screen on the display side is different. By setting the spacing between the first shading structure, the second shading structure, and the third shading structure, different processing techniques can be compatible, so that the amount of forward light output on the display side is different, so as to achieve different display effects.

[0111] In some examples, the isolation layer includes a first isolation layer 310 and a second isolation layer 320, and the thickness of the isolation layer in the second direction Y is related to the spacing between the first light-shielding structure and the third light-shielding structure, and the spacing between the first light-shielding structure and the third light-shielding structure. The method for preparing the display panel may be: preparing a driving layer 102 on one side of the substrate layer 101, arranging a light-emitting device layer 200 on a side of the driving layer 102 away from the substrate layer 101, arranging a first light-shielding structure 401 and a second light-shielding structure 402 on a side of the light-emitting device layer 200 away from the substrate layer 101, and arranging a third light-shielding structure 404 between the first light-shielding structure and the light-emitting device layer 200. A first isolation layer 310 is arranged between the first light-shielding structure 401 and the second light-shielding structure 402, and a second isolation layer 320 is arranged 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 light shielding structure and the second light shielding structure in the second direction Y is adjusted. 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 light shielding structure 401 and the third light shielding structure in the second direction Y is adjusted. 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 a multi-layer, the isolation layer may include the third isolation layer 313 and the fourth isolation layer 314, and the thickness of any layer of the third isolation layer 313 and the fourth isolation layer 314 in the second direction Y may be 3 μm. The thickness of a 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] Exemplarily, when the fourth spacing H4 is 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 a multi-layer, the isolation layer may include a first isolation layer 311 and a second isolation layer 312, and the thickness of any one of the first isolation layer 311 and the second isolation layer 312 in the second direction Y may be 3 μm. The thickness of a 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 set to be the same as that of the first isolation layer, and is set accordingly according to the distance between the first light-shielding structure and the second light-shielding structure.

[0114] It should be noted that the thickness of the isolation layer in the second direction Y of the embodiment of the present application is set corresponding to the spacing between the first light shielding structure and the second light shielding structure. The first spacing is set according to the actual requirements of the optical product 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 thickness of the isolation layer to achieve different display effects. The settings of the first spacing and the thickness of the isolation layer are not listed one by one here.

[0115] In some embodiments, the third layer of light-shielding structure includes a third hollowing out, the orthographic projection of the second hollowing out on the substrate layer is the second projection, the orthographic projection of the first hollowing out on the substrate layer is the first projection, and the orthographic projection of the third hollowing out on the substrate layer is the third projection. The second projection can cover the first projection, the first projection can cover the third projection, and the first projection, the second projection, and the third projection overlap, which can avoid shading between the multi-layer light-shielding structures.

[0116] Fig.13 A schematic partial structural diagram of another display panel provided in an embodiment of the present application. For example, Fig.13 As shown, the size of the third hollow in the first direction X is the third size, the size of the first hollow in the first direction X is the first size L1, and the size of the second hollow in the first direction is the second size L2. The third size L3 is the same as the first size L1, and the third size L3 is the same as the second size L2. The sizes of the first hollow, the second hollow, and the third hollow are set to be the same. The consistency of the film preparation process can be improved, and at the same time, the shielding between the multi-layer shading structures can be avoided, thereby improving the display effect.

[0117] Exemplarily, the third size L3 is equal to the first size L1, and the second size L2 can be set larger than the first size L1, or the second size L2 can be set smaller 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 layer of shading structure 402 and the display brightness of the display side D can be changed to achieve different display effects.

[0118] For example, Fig.13 As shown, the thickness of the first light-shielding structure in the second direction is the first thickness h1, the thickness of the second light-shielding structure in the second direction is the second thickness h2, and the thickness of the third light-shielding structure in the second direction is the third thickness h3. The third thickness is the same as the first thickness, and the third thickness is the same as the second thickness, and both can be 1.5um. Setting the thickness of the three light-shielding structures to be the same can improve the consistency of the light-shielding performance of the light-shielding structures, avoid light leakage, and affect the display effect.

[0119] Fig.14 A schematic partial structural diagram of a display panel provided in an embodiment of the present application. For example, Figure 13 to Figure 14 As shown, the display panel further includes a third flat layer 700, a patterned cover layer 710 and a protective layer 340. The thickness of the cover layer 710 in the second direction Y is 2.5 μm. The angle between the extended surface of the side of the cover layer 710 and the plane where the substrate layer 101 is located is 40°. The protective layer 340 can be an organic material, and the thickness of the protective layer 340 in the second direction Y is 4 μm. The third flat layer 700 can be an organic insulating layer, and the third flat layer 700 can be used to flatten the driving layer 102. The shape of the cover layer 710 is matched with 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 a pixel circuit, the light-emitting device layer includes a first electrode 205 and a second electrode, the light-emitting layer 202 is arranged 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 integrated structure, and the first electrode 205 is a metal material. The first electrode 205 can work together with the second electrode to drive the light-emitting layer 202 to emit light, and the first electrode 205 can also serve as a reflective structure to focus the wide-angle light emitted by the light-emitting layer 202. The reflective structure and the first electrode 205 are prepared as an integrated structure, which can save processing technology and reduce processing costs while improving display brightness.

[0120] Exemplarily, when the first electrode 205 is used as a reflective structure, part of the first electrode 205 overlaps the covering layer 710, and part of the first electrode 205 is arranged at the bottom of the pixel opening 204. The shape of the first electrode 205 can form a reflective cup structure to reflect light with a wide viewing angle.

[0121] Exemplarily, 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] Exemplarily, the display panel further includes a support column, which is disposed on a side of the pixel defining layer 201 away from the substrate layer 101 and is used to support the touch layer of the display panel to improve the pressure resistance of the display panel. Fig.15 A schematic partial structural diagram of another display panel provided in an embodiment of the present application. For example, Fig.15As shown, the first electrode 205 and the reflective structure are an integrated structure, that is, the first electrode 205 itself can be used as a reflective structure to gather 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 viewing angle light emitted from the light-emitting layer 202 passes through the first electrode 205, the light is gathered to the display side, avoiding the waste of wide viewing angle light, thereby improving the light utilization rate, and further increasing the forward light output on the display side.

[0123] For example, Fig.15 As shown, the width of the orthographic projection of the pixel defining layer 201 in the first direction X is a fourth dimension L4, the width of the orthographic projection of the first electrode 205 between two adjacent light-emitting layers 202 in the first direction X is a fifth dimension L5, and the width of the orthographic projection of the covering layer 710 in the first direction X is a sixth dimension L6. The size range of the fourth dimension is 7.2 μm to 10.4 μm, the size range of the fifth dimension L5 is 7.8 μm to 15.2 μm, and the size range of the sixth dimension L6 is 6.2 μm to 9.2 μm. 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 covering layer 710.

[0124] Exemplarily, 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] When the fourth dimension L4 is 8.5 μm, the fifth dimension L5 is 10.3 μm, and the sixth dimension L6 is 7.6 μm.

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

[0127] Fig.16 A schematic optical path diagram of a display panel provided in an embodiment of the present application. For example, Fig.16As shown, the width of the light-emitting layer 202 in the first direction X is the seventh dimension L7, the width of the first hollow in the first direction is the first dimension L1, and the width of the second hollow in the first direction is the second dimension L2. The first electrode 205 and the reflective structure are an integrated structure, the angle between the first electrode 205 and the plane where the substrate layer 101 is located is the first angle A, and the angle between the first light S1 emitted by the light-emitting layer 202 and the normal is the first light output angle a1. The angle range of the first angle A is 40° to 70°, and the angle range of the first light output angle a1 is 60° to 80°. The width range of the fifth dimension is 8 to 10μm, the width range of the first dimension L1 is: 9 to 11μm, and the width range of the second dimension L2 is: 9 to 11μm.

[0128] Exemplarily, the angle of the first angle A can be 45°, the angle of the first angle A can be 60°, and the angle of the first angle A can be 70°. The first light output angle a1 can be 70°, and the first light output angle a1 can be 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 angle A, the first light output 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 the processing efficiency.

[0129] The calculation formula of the incident angle and the refraction angle is as follows: n0×Sinθn0=n1×Sinθn1, in which n0 is the refractive index of the incident light medium, n1 is the refractive index of the refracting light medium, θn0 is the incident angle, and θn1 is the exit angle. Exemplarily, the first angle A is 70°, the first light exit angle a1 is 60°, and the first light S1 emitted from the light emitting layer 202 enters different media and is deflected. According to the calculation formula, the incident angle a11 of the first light S1 incident on the first electrode 205 is 50°, and the first light S1 is reflected by the first electrode 205 to obtain the second light S2. The incident angle of the second light S2 incident on the first organic encapsulation layer 503 via the first inorganic encapsulation layer 501 is the second angle a2, and the second angle a2 is 20°. After the second light S2 is emitted through the first organic encapsulation layer 503, a third light S3 is obtained. The emission angle of the third light S3 is the third angle a3. The incident angle of the third light S3 incident on the second inorganic encapsulation layer 502 is equal to the third angle a3. The refractive index of the first inorganic encapsulation layer 501 ranges from 1.6 to 1.8, and the refractive index of the first organic encapsulation layer 503 ranges from 1.45 to 1.55. According to the calculation formula, the angle range of the third angle a3 is 20.67° to 25.12°. After the third light S3 is emitted through the second inorganic encapsulation layer 502, a fourth light S4 is obtained. The emission angle of the fourth light S4 is the fourth angle a4. The incident angle of the fourth light S4 incident on the isolation layer 300 is equal to the fourth angle a4. The refractive index of the second inorganic encapsulation layer 502 ranges from 1.8 to 1.9. According to the calculation formula, the angle range of the fourth angle a4 is 15.63° to 21.44°. The fourth light S4 is emitted through the second inorganic encapsulation layer 502 to obtain the fifth light S5. The emission angle of the fifth light S5 is the fifth angle a5. The incident angle of the fifth light S5 incident on the protective layer 340 is equal to the fifth angle a5. The refractive index range of the isolation layer 300 is 1.5 to 1.6. According to the calculation formula, the angle range of the fifth angle a5 is 17.46° to 27.58°. The total offset distance L8 of the horizontal components of the third light S3, the fourth light S4, and the fifth light S5 in the first direction X is as follows: 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 light ray S3, the fourth light ray S4 and the fifth light 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, the second dimension is 9μm.When the total offset distance of the horizontal components of the third light ray S3, the fourth light ray S4, and the fifth light ray S5 in the first direction X is between 7.44 and 9 um, since the fifth dimension L5 is equal to the second dimension L2, the fifth light ray S5 is directly emitted from the second hollow of the second light shielding structure 402 to the display side D. When the total offset distance of the horizontal components of the third light ray S3, the fourth light ray S4, and the fifth light ray S5 in the first direction X is between 9 and 10.84 um, the fifth light ray S5 is blocked by the hollow left light shielding strip of the second light shielding structure. When the wide viewing angle light emitted by the light emitting layer is 60°, part of the light is blocked by the second light shielding structure 402, and part of the light can be emitted from the hollow of the second light shielding structure 402, which plays the role of changing the light emission path and improving the wide viewing angle light leakage.

[0130] Fig.17 A schematic optical path diagram of another display panel provided in an embodiment of the present application. For example, refer to Fig.17, the first angle A is 70°, the first light output angle is 80°, the first light S1 emitted from the light emitting layer 202 enters different media and is deflected. According to the calculation formula, the incident angle of the first light S1 incident on the first electrode 205 is 30°, and the first light S1 is reflected by the first electrode 205 to obtain the second light S2. The refractive index of the first inorganic encapsulation layer 501 ranges from 1.6 to 1.8, and the refractive index of the first organic encapsulation layer 503 ranges from 1.45 to 1.55. According to the calculation formula, the incident angle of the second light S2 incident on the first inorganic encapsulation layer 501 is 30°, and the second light S2 is emitted through the first inorganic encapsulation layer 501 to obtain the third light S3, and the third light S3 is emitted from the first organic encapsulation layer 503 at an angle ranging 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 value of the incident angle of the third light ray S3 incident on the second inorganic encapsulation layer 502 is equal to 180°-40°-90°-38.37°=11.63°, and the maximum value of the incident angle of the third light ray S3 incident on the second inorganic encapsulation layer 502 is equal to 180°-40°-90°-31.07°=18.93°, so according to the calculation formula, the incident angle of the third light ray S3 incident on the second inorganic encapsulation layer 502 ranges from 11.63° to 18.93°. The third light ray S3 is refracted by the second inorganic encapsulation layer 502 to obtain the fourth light ray S4, and the incident angle of the fourth light ray S4 incident on the isolation layer 300 ranges from 8.85° to 16.22°, that is, the exit angle of the fourth light ray S4 from the first organic encapsulation layer 503 ranges from 8.85° to 16.22°. The fourth light S4 is refracted through the second inorganic encapsulation layer 502 to obtain the fifth light S5. The refractive index of the first isolation layer 310 is in the range of 1.5 to 1.6. According to the calculation formula, the incident angle of the fifth light S5 incident on the protective layer 340 is in the range of 9.97° to 20.72°, that is, the exit angle of the fifth light S5 from the second inorganic encapsulation layer 502 is in the range of 9.97° to 20.72°. The total offset distance L8 of the horizontal components of the third light S3, the fourth light S4, and the fifth light S5 in the first direction X is as follows: 0.7 / tan(70°)+tan(11.63°)×8.5+tan(8.85°)×1.5+tan(9.97°)×12=4.35um. The maximum total offset distance L8 of the horizontal components of the third light ray S3, the fourth light ray S4 and the fifth light 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=8.15 um.According to the above calculation, when the total offset distance of the horizontal components of the third light ray S3, the fourth light ray S4, and the fifth light ray S5 in the first direction X is between 4.35 and 8.15 um, since the seventh dimension L7 is 9 μm and the second dimension is 9 μm, the light can be directly emitted from the hollow of the second light shielding structure 402 to the display side D. It can be ensured that when the wide viewing angle light is 80°, most of the light will be emitted from the hollow of the second light shielding structure 402, thereby changing the light emission path, improving the brightness at the normal viewing angle, and improving the light leakage at a wide viewing angle.

[0131] It should be noted that light with a first light output angle a greater than or equal to 60° is regarded as wide-viewing angle light.

[0132] Exemplarily, the shading structure 400 includes a first shading structure 401, a second shading structure 402, and a third shading structure 404. The angles between the extended surfaces of the sides of the three shading structures and the plane where the substrate layer 101 is located are all in the range of 70° to 90°. When the angles between the extended surfaces of the sides of the shading structures and the plane where the substrate layer 101 is located are all in the range of 70°, part of the wide-viewing angle light emitted by the light-emitting layer is blocked by the bottom surface of the shading structure toward the substrate layer, and part of it is blocked by the side of the shading structure. When the angles between the extended surfaces of the sides of the shading structure and the plane where the substrate layer 101 is located are all in the range of 90°, the wide-viewing angle light emitted by the light-emitting layer is blocked by the bottom surface of the shading structure toward the substrate layer, and the positive-viewing angle light emitted by the light-emitting layer 202 directly passes through the first hollow and the second hollow to be emitted to the display side D.

[0133] The embodiment of the present application sets up two layers of shading structure, and performs shading treatment twice. The first layer of shading structure 401 performs the first shading treatment on the wide-angle light emitted by the light-emitting layer 202, and the second layer of shading structure 402 performs the second shading treatment on the light emitted by the light-emitting layer. The light passing through the second layer of shading structure has an offset distance in the first direction X. The offset distance is greater than the width of the hollowing, and the light is blocked by the shading structure. The offset distance is less than the width of the hollowing. Different shading effects can be achieved by adjusting the width of the hollowing, and then different display effects can be achieved.

[0134] In some embodiments, the reflective structure includes two reflective layers, which may be a first reflective layer and a second reflective layer. The first reflective layer may be prepared using the same process as the first electrode, and the second reflective layer may be prepared using the same process as the second electrode. Providing 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-level stepped structure, wherein each level of the stepped structure includes two step surfaces, an extended surface of one step surface intersects with the plane where the substrate layer is located, and a plane where the other step surface is located is parallel to the plane where the substrate layer is located. Through the setting of the stepped structure, light rays emitted from the light-emitting layer at different angles can be gradiently reflected, thereby achieving light gathering at a larger viewing angle and improving display brightness.

[0136] Fig.18 A schematic partial structural diagram of another display panel provided in an embodiment of the present application. For example, Fig.18 As shown, exemplarily, the reflective structure 203 forms a stepped structure on the surface of the pixel defining layer 201 away from the substrate layer 101, and the reflective structure 203 may include a first-level stepped structure and a second-level stepped structure. The first step surface 222 and the second step surface 223 form a first-level stepped structure. The third step surface 224 and the fourth step surface 225 form a second-level stepped structure. The extended surface of the second step surface 223 intersects with the plane where the substrate layer 101 is located, and the extended surface of the fourth step surface 225 intersects with the plane where the substrate layer 101 is located. The plane where the first step surface 222 is located is parallel to the plane where the substrate layer 101 is located, and the plane where the third step surface 224 is located is parallel to the plane where the substrate layer 101 is located. The wide-viewing angle light emitted by the light-emitting layer 202 enters the first-level stepped structure and the second-level stepped structure respectively. The angle of the incident light entering the first-level stepped structure is greater than the angle of the incident light entering the second-level stepped structure. Through the setting of the two-level stepped structure, the wide-viewing angle light emitted by the light-emitting layer 202 can be gradiently reflected, thereby achieving light gathering at a larger viewing angle and improving the display brightness.

[0137] For example, Fig.18 As shown, the reflective structure 203 is embedded in the pixel defining layer 201, and the shape of the pixel defining layer 201 is matched with the reflective structure 203. The pixel defining layer 201 can also be a stepped structure. The orthographic projection of the pixel defining layer 201 on the substrate layer completely covers the orthographic projection of the stepped structure 221 on the substrate layer 101. The reflective structure is set in the pixel defining layer. When the light emitted by the light emitting layer 202 enters the pixel defining layer 201, the reflective structure 203 can gather the light emitted by the light emitting layer 202 to the display side D, which can prevent the light emitted by the light emitting layer from being absorbed by the pixel defining layer, thereby improving the light output rate of the display panel and improving the display brightness.

[0138] In some embodiments, the pixel defining layer includes two defining layers, the defining layer away from the substrate layer is coated on the defining layer close to the substrate layer, and the reflective structure is arranged between the two defining layers. Through the arrangement of the two defining layers, the reflective structure can include a multi-level stepped structure to achieve the gathering of light at a larger viewing angle, improve the light output rate of the display panel, and thus improve the display brightness.

[0139] A second aspect of the embodiments of the present application includes a display panel as described in the first aspect. Fig.19 Schematic diagram of a display device provided in an embodiment of the present application. Fig.19 As shown, the display device 2000 includes a display panel 1000 .

[0140] The display device provided by the embodiment of the present application, by setting a reflective structure in the pixel opening, converges the wide-angle light emitted by the light-emitting layer, improves the brightness of the light emitted at the positive angle, and then converges the angle light reflected by the reflective structure to the positive angle direction through at least two layers of shading structure, and effectively shields the wide-angle light emitted by the light-emitting layer, so that the light emitted by the light-emitting layer is concentrated in the positive angle direction of the display side to display a bright picture, and the wide-angle direction of the display side does not display the picture. It not only avoids the leakage of wide-angle light, but also improves the brightness of the display picture, so that the anti-peeping effect of the display panel is greatly improved, thereby avoiding traffic accidents.

[0141] The display device provided in the embodiment of the present application may include a television, a computer, a smart phone, a smart wearable device, a laptop computer, a tablet computer, etc. The smart wearable device may include a smart watch, an AR (augmented reality) device, a VR (virtual reality) device, etc.

[0142] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0143] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

[0144] Although the preferred embodiments of this specification have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of this specification.

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

Claims

1. A display panel, characterized in that: include: A driving substrate, the driving substrate comprising a substrate layer and a driving layer; A light emitting device layer, wherein the light emitting device layer is arranged on a side of the driving layer away from the substrate layer; At least two layers of light-shielding structures, wherein the light-shielding structures are arranged on a side of the light-emitting device layer away from the substrate layer, and an isolation layer is arranged between at least two layers of the 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 arranged at the pixel openings, and at least part of the reflective structure is arranged on the inner wall of the pixel opening; The light shielding structure is provided with a plurality of hollows, and the orthographic projections of the hollows on the substrate layer cover the orthographic projections of the pixel openings on the substrate layer.

2. The display panel according to claim 1, characterized in that: The orthographic projection of the shading 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 shading structure on the substrate layer does not overlap or partially overlaps with the orthographic projection of the reflective structure on the substrate layer.

3. The display panel according to claim 2, characterized in that: The light shielding structure comprises a first light shielding structure and a second light shielding structure, the second light shielding structure is arranged on a side of the light emitting device layer away from the substrate layer, and the first light shielding structure is arranged between the second light shielding structure and the light emitting device layer; At least one first isolation layer is disposed 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, and 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 where the substrate layer is located.

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

5. The display panel according to claim 4, characterized in that: The first spacing has a size ranging from 10 μm to 14 μm.

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

7. The display panel according to claim 3, characterized in that: The shading structure comprises a third shading structure, the third shading structure is arranged between the first shading structure and the light emitting device layer, and the orthographic projection of the third shading structure on the substrate layer does not overlap with the orthographic projection of the pixel opening on the substrate layer; At least one first isolation layer is disposed between the first light-shielding structure and the third light-shielding structure; and / or, At least one second isolation layer is arranged between the first light-shielding structure and the third light-shielding structure.

8. The display panel according to claim 7, characterized in that: The distance between the first layer of light shielding structure and the second layer of light shielding structure in the second direction is a third distance; The distance between the first light shielding structure and the third light shielding structure in the second direction is a fourth distance; The fourth interval is greater than the third interval.

9. The display panel according to claim 8, characterized in that: The third spacing has a size range of 6 μm to 10 μm; and / or, The fourth spacing has a size ranging from 10 μm to 16 μm.

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

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

12. The display panel according to any one of claims 1 to 11, characterized in that: The driving layer includes a pixel circuit; The light emitting device layer comprises a first electrode and a second electrode, and the light emitting layer is arranged between the first electrode and the second electrode; The reflective structure and the first electrode are an integrated structure.

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

14. The display panel according to claim 12, characterized in that: The reflective structure includes at least two-level stepped structures, and the stepped structure includes at least two stepped surfaces. An extended surface of at least one of the stepped surfaces intersects with the plane where the substrate layer is located.

15. The display panel according to claim 14, characterized in that: The reflective structure is embedded in the pixel defining layer, and the orthographic projection of the pixel defining layer on the substrate layer covers the orthographic projection of the step structure on the substrate layer.

16. The display panel according to claim 14, characterized in that: The pixel definition layer includes at least two definition layers, and the definition layer far away from the substrate layer is coated on the definition layer close to the substrate layer; The reflective structure is arranged between the two defining layers.

17. A display device, characterized in that: include: A display panel as claimed in any one of claims 1 to 16.

Images