Display panel, manufacturing method and display device

Abstract

Embodiments of the present application provide a display panel, a manufacturing method and a display device. The display panel comprises a substrate, a plurality of light emitting devices, a first light shielding layer, a second flat layer and a second light shielding layer. The plurality of light emitting devices are respectively arranged in a first region and a second region. The first light shielding layer is arranged on a side of each light emitting device away from the substrate. The first light shielding layer is provided with a plurality of first light transmission openings. Each first light transmission opening is arranged corresponding to a light emitting device. The second light shielding layer is projected onto the substrate within the second region and outside the first region. The second light shielding layer is provided with a plurality of second light transmission openings. Each second light transmission opening is arranged corresponding to a light emitting device in the second region. The first light shielding layer is used to limit the light emitting angle of the light emitting devices in the whole display region. The second light shielding layer is used to further limit the light emitting angle of the light emitting devices in part of the display region. The light emitting angle of the display panel relative to the bending part is overall small, and the peep-proof effect is good.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel, a manufacturing method and a display device. BACKGROUND

[0002] Organic Light Emitting Diode (OLED) display technology is considered as the most potential new display technology of the next generation. Compared with liquid crystal display technology, OLED display technology has the advantages of low energy consumption, low cost, self-luminous, wide viewing angle and fast response speed.

[0003] In some display panels of some scenes, for example, a vehicle-mounted screen, it is a folding screen, and it is required that both parts relative to the folding have good anti-peep angles. The current display panel can only guarantee the viewing angle of one part, and the viewing angle of the other part cannot be guaranteed due to the folding shape. SUMMARY

[0004] In order to overcome the technical problems mentioned in the above technical background, the embodiments of the present application provide a display panel, comprising:

[0005] a substrate comprising a first region and a second region;

[0006] a plurality of light emitting devices respectively arranged in the first region and the second region;

[0007] a first light shielding layer arranged on a side of each of the light emitting devices away from the substrate, the first light shielding layer being provided with a plurality of first light transmission openings, each of the first light transmission openings being arranged corresponding to the light emitting device in the projection direction of the substrate;

[0008] a second planar layer arranged on a side of the first light shielding layer away from the substrate, and a projection of the second planar layer on the substrate being located in the first region and the second region; and

[0009] a second light shielding layer arranged on a side of the planar layer away from the substrate, a projection of the second light shielding layer on the substrate being located in the second region and outside the first region, the second light shielding layer being provided with a plurality of second light transmission openings, each of the second light transmission openings being arranged corresponding to the light emitting device located in the second region in the projection direction of the substrate.

[0010] In some embodiments, in the second region, the size of the second light transmission opening is greater than or equal to the size of the corresponding first light transmission opening, and the width of the first light shielding layer between two adjacent first light transmission openings is greater than the width of the second light shielding layer between two adjacent second light transmission openings.

[0011] In some embodiments, the second light-transmissive opening has an edge that is outwardly expanded relative to an edge of the first light-transmissive opening by a distance greater than or equal to 1 micrometer and less than or equal to 10 micrometers.

[0012] In some embodiments, the display panel further comprises a touch function layer and a third planar layer, the touch function layer is disposed on a side of the second planar layer away from the substrate, the third planar layer is disposed on a side of the touch function layer away from the substrate, a projection of the touch function layer on the substrate is located in the first region and the second region, a projection of the third planar layer on the substrate is located in the first region and the second region; the second light-blocking layer is disposed on a side of the third planar layer away from the substrate.

[0013] In some embodiments, the touch function layer comprises a plurality of touch electrodes, the first region and the second region each have a plurality of the touch electrodes, a projection of the plurality of the touch electrodes in the second region on the substrate is located in the second light-blocking layer in the second region, and / or a projection of the plurality of the touch electrodes in the second region on the substrate is located in the first light-blocking layer in the second region.

[0014] In some embodiments, the display panel further comprises a third light-blocking layer and a fourth planar layer, the third light-blocking layer is disposed on a side of the second planar layer away from the substrate, the fourth planar layer is disposed on a side of the third light-blocking layer away from the substrate, and the second light-blocking layer is disposed on a side of the fourth planar layer away from the substrate; the third light-blocking layer is provided with a plurality of third light-transmissive openings, each of the third light-transmissive openings is arranged to correspond to at least the light emitting device in the second region in the projection direction of the substrate.

[0015] In some embodiments, the third light-transmissive opening has a size greater than a size of the first light-transmissive opening, and the third light-transmissive opening has a size less than a size of the second light-transmissive opening.

[0016] An edge of the third light-transmissive opening is outwardly expanded relative to an edge of the first light-transmissive opening by a distance greater than or equal to 1 micrometer and less than or equal to 10 micrometers, and an edge of the second light-transmissive opening is outwardly expanded relative to an edge of the third light-transmissive opening by a distance greater than or equal to 1 micrometer and less than or equal to 10 micrometers.

[0017] In some embodiments, the display panel further comprises a touch function layer and a third flat layer, the touch function layer is arranged on a side of the second flat layer away from the substrate, the third flat layer is arranged on a side of the touch function layer away from the substrate, a projection of the touch function layer on the substrate is located in the first area and the second area, a projection of the third flat layer on the substrate is located in the first area and the second area; the third light shielding layer is located on a side of the third flat layer away from the substrate.

[0018] In some embodiments, the display panel further comprises an isolation structure, the isolation structure is arranged on a side of the substrate, a plurality of isolation openings are arranged on the isolation structure; the light emitting device is arranged in the isolation opening; the first light shielding layer is arranged on a side of the isolation opening and the light emitting device away from the substrate;

[0019] The isolation structure comprises an isolation portion and a blocking portion arranged in sequence away from the substrate, a projection of the isolation portion on the substrate is located in a projection of the blocking portion on the substrate;

[0020] The isolation structure further comprises a base portion located on a side of the isolation portion facing the substrate, a projection of the isolation portion on the substrate is located in a projection of the base portion on the substrate.

[0021] In some embodiments, the display panel further comprises a pixel definition layer, the pixel definition layer is arranged on a side of the substrate, the isolation structure is arranged on a side of the pixel definition layer away from the substrate, a plurality of pixel openings are arranged on the pixel definition layer, the pixel openings and the isolation openings are connected in a projection direction of the substrate;

[0022] The light emitting device comprises a first electrode, a light emitting function layer and a second electrode arranged in sequence away from the substrate; the second electrode is electrically connected with the base portion.

[0023] In some embodiments, the display panel corresponding to the first area and the display panel corresponding to the second area are both flat display screens, the perpendicular lines of the two flat display screens are not parallel;

[0024] Alternatively, the display panel corresponding to one of the first area and the second area is a flat display screen, and the display panel corresponding to the other area is a curved display screen, the perpendicular line of the flat display screen is not parallel to the center line of the curved display screen;

[0025] Alternatively, the display panel corresponding to the first area and the display panel corresponding to the second area are both curved display screens, the center lines of the two curved display screens are not parallel.

[0026] Another object of the embodiments of the present application is to provide a manufacturing method of a display panel, which comprises:

[0027] Manufacturing a plurality of light emitting devices in the first region and the second region of the substrate;

[0028] Manufacturing a first light shielding layer on a side of the light emitting devices away from the substrate, the first light shielding layer being provided with a plurality of first light transmission openings, each of the first light transmission openings being arranged corresponding to the light emitting devices in the projection direction of the substrate;

[0029] Manufacturing a second planar layer on a side of the first light shielding layer away from the substrate, the second planar layer being projected on the first region and the second region on the substrate; and

[0030] Manufacturing a second light shielding layer on a side of the second planar layer away from the substrate, the second light shielding layer being projected in the second region and out of the first region on the substrate; the second light shielding layer being provided with a plurality of second light transmission openings, each of the second light transmission openings being arranged corresponding to the light emitting devices in the second region in the projection direction of the substrate.

[0031] In some embodiments, after manufacturing the second planar layer and before manufacturing the second light shielding layer, the method further comprises:

[0032] Manufacturing a third light shielding layer on a side of the second planar layer away from the substrate, and manufacturing a fourth planar layer on a side of the third light shielding layer away from the substrate; the second light shielding layer being arranged on a side of the fourth planar layer away from the substrate; the third light shielding layer being provided with a plurality of third light transmission openings, each of the third light transmission openings being arranged corresponding to the light emitting devices in the projection direction of the substrate.

[0033] In some embodiments, after manufacturing the second planar layer and before manufacturing the third light shielding layer, the method further comprises:

[0034] Manufacturing a touch function layer on a side of the second planar layer away from the substrate; and

[0035] Manufacturing a third planar layer on a side of the touch function layer away from the substrate.

[0036] Still another object of the embodiments of the present application is to provide a display device comprising the display panel as described in the above embodiments, or comprising the display panel manufactured by the manufacturing method as described in the above embodiments.

[0037] The display panel, the manufacturing method and the display device provided by the embodiments of the present application have the following beneficial effects:

[0038] The display panel provided in this application embodiment uses a first light-shielding layer to limit the light emission angle of the light-emitting devices in the entire display area, and uses a second light-shielding layer to further limit the light emission angle of the light-emitting devices in a portion of the display area, so that the overall light emission angle of the relatively bent portion of the display panel is small, and the privacy protection effect is good. Attached Figure Description

[0039] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the planar structure of the display panel provided in an embodiment of this application;

[0041] Figure 2 Schematic cross-sectional structure of the display panel provided in the embodiments of this application Figure 1 This mainly shows the cross-sectional structure of the substrate;

[0042] Figure 3 This is a schematic diagram of the circuit structure of a sub-pixel of a display panel provided in an embodiment of this application;

[0043] Figure 4 This is a plan view of the isolation structure in the display panel provided in the embodiments of this application;

[0044] Figure 5 This is a schematic diagram of the light-emitting functional layer of the light-emitting device in the display panel provided in the embodiments of this application;

[0045] Figure 6 This is a perspective view of the display panel provided in the embodiments of this application;

[0046] Figure 7 This is a display panel corresponding to one embodiment of this application. Figure 1 Cross-sectional view of the middle BB line;

[0047] Figure 8 This is a display panel corresponding to one embodiment of this application. Figure 1 Cross-sectional view of the CC line;

[0048] Figure 9 This is a schematic diagram of the light emission of a display panel provided in one embodiment of this application;

[0049] Figure 10 This corresponds to the display panel provided in another embodiment of this application. Figure 1 Cross-sectional view of the middle BB line;

[0050] Figure 11 is a cross-sectional view of the display panel along line B-B in FIG. 1 according to another embodiment of the present application; Figure 1

[0051] Figure 12 is a schematic diagram of the display panel according to another embodiment of the present application;

[0052] Figure 13 is a cross-sectional view of the display panel along line B-B in FIG. 1 according to another embodiment of the present application; Figure 1

[0053] Figure 14 is a cross-sectional view of the display panel along line C-C in FIG. 1 according to another embodiment of the present application; Figure 1

[0054] Figure 15 is a flow chart of a manufacturing method of the display panel according to an embodiment of the present application;

[0055] Figure 16 is a structural diagram corresponding to substep S11 of step S1 of the manufacturing method of the display panel according to an embodiment of the present application;

[0056] Figure 17 is a structural diagram corresponding to substep S12 of step S1 of the manufacturing method of the display panel according to an embodiment of the present application;

[0057] Figure 18 is a structural diagram corresponding to substep S13 of step S1 of the manufacturing method of the display panel according to an embodiment of the present application. DETAILED DESCRIPTION

[0058] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings for the embodiments of the present application to clearly and completely describe the technical solutions of the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Generally, the components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0059] For easy understanding, the X-axis, Y-axis and Z-axis which are perpendicular to each other are recorded in the accompanying drawings. The direction along the X-axis is referred to as the X direction, the direction along the Y-axis is referred to as the Y direction, and the direction along the Z-axis is referred to as the Z direction. The Z direction is the normal direction relative to the plane containing the X direction and the Y direction. In addition, the case of observing various elements in parallel with the plane containing the X direction and the Y direction is referred to as a top view. Alternatively, the plane of the X direction and the Y direction is the plane parallel to the display surface of the display panel, and the Z direction is the direction parallel to the thickness direction of the display panel. ​​​

[0060] For some elements, the terms "upper" or "above" are sometimes used when describing the position of an element in the Z direction, and the terms "lower" or "below" are sometimes used when describing the position of an element in the opposite direction. In addition, when the terms "upper", "above", "lower", "below", "relative", and the like are used to define the positional relationship of two elements with respect to each other, they not only include the state in which the two elements are directly connected, but also include the state in which the two elements are separated by a gap, other elements. In addition, the terms "first", "second", "third", and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0061] Figure 1 is a schematic structural diagram of a display panel 10 according to an embodiment of the present application. The display panel 10 can be an organic light emitting diode display panel (OLED) or a quantum dot light emitting diode display panel (QLED). The display panel 10 includes a display area AA having a display function and a non-display area NA.

[0062] The display area AA of the display panel 10 can have a rectangular shape, or a square, circular, or elliptical shape, or other shapes.

[0063] The display area AA includes a plurality of pixels PX arranged in an array in the X direction and the Y direction. The pixel PX includes a plurality of sub-pixels SPX that display different colors. In some embodiments, the pixel PX includes a first sub-pixel SPX1, a second sub-pixel SPX2, and a third sub-pixel SPX3. For example, the first sub-pixel SPX1 is a blue sub-pixel SPX, the second sub-pixel SPX2 is a green sub-pixel SPX2, and the third sub-pixel SPX3 is a red sub-pixel SPX3. In other alternative embodiments, the colors of the first sub-pixel SPX1, the second sub-pixel SPX2, and the third sub-pixel SPX3 can be exchanged. In some embodiments, the pixel PX can include sub-pixels SPX that emit white or other color light in addition to the sub-pixels SPX1, SPX2, and SPX3. As shown, the sub-pixel SPX includes a pixel circuit and a light emitting device 13 driven by the pixel circuit to emit light of a corresponding color. The first sub-pixel SPX1 includes a first light emitting device 13a, the second sub-pixel SPX2 includes a second light emitting device 13b, and the third sub-pixel SPX3 includes a third light emitting device 13c. One pixel circuit drives at least one light emitting device 13 to emit light. Figure 3

[0064] Reference is made to Figure 2 and Figure 7 ​As shown, the display panel 10 includes a substrate 11 and a plurality of light emitting devices 13 arranged on one side of the substrate 11.

[0065] Referring to Figure 3 , the substrate 11 includes a substrate 111, a driving circuit layer 112 arranged on one side of the substrate 111, and a first planar layer 19 arranged on one side of the driving circuit layer 112, the driving circuit layer 112 includes a pixel circuit for driving the light emitting device 13 to emit light, Figure 3 A transistor 18 in the pixel circuit is shown.

[0066] As shown in Figure 2 and Figure 7 , the light emitting device 13 includes a first electrode 131, a light emitting functional layer 132, and a second electrode 133 arranged in sequence on the side of the first planar layer 19 away from the substrate 111. The first light emitting device 13a, the second light emitting device 13b, and the third light emitting device 13c each include the first electrode 131, the light emitting functional layer 132, and the second electrode 133 arranged in layers. The light emitting colors of the first light emitting device 13a, the second light emitting device 13b, and the third light emitting device 13c are different according to the specific material of the light emitting functional layer 132.

[0067] A via (not shown) is arranged in the first planar layer 19, and the first electrode 131 of the light emitting device 13 is electrically connected to the transistor 18 in the driving circuit layer 112 through the via. In addition, the driving circuit layer 112 further includes at least one insulating layer, which can include at least one of an inorganic layer and an organic layer, and the insulating layer is used to isolate the layer structures in the transistor 18.

[0068] In addition, the substrate 11 further includes a scan line for providing a scan signal Scan, a data line for providing a data signal Data, and the like.

[0069] Referring to Figure 4 , the transistor 18 in the pixel circuit includes a driving transistor T1 and a data transistor T2, the source of the data transistor T2 is connected to a data line for providing a data signal Data, the gate of the data transistor T2 is connected to a scan line for providing a scan signal Scan, the drain of the data transistor T2 is connected to the gate of the driving transistor T1, the two ends of a storage capacitor C1 are respectively connected to the gate and the source of the driving transistor T1, and the drain of the driving transistor T1 is connected to the light emitting device 13. Figure 4 is one embodiment of the pixel circuit, and the pixel circuit of the present application is not limited to Figure 4 the 2T1C pixel circuit shown, but can also be other pixel circuits, such as 7T1C, 8T1C pixel circuits, and the like.

[0070] As shown in Figure 1 , Figure 6 , Figure 9 and Figure 12As shown, the display area AA of the display panel 10 provided by the embodiment of the present application includes a first display area AA1 and a second display area AA2 which are relatively bent. The first display area AA1 and the second display area AA2 can be relatively bent, and the relative bending angle between the first display area AA1 and the second display area AA2 can be fixed or adjustable.

[0071] In some scenarios, the relative bending angle between the first display area AA1 and the second display area AA2 is fixed, that is, the display panel 10 is a fixed-curved screen.

[0072] The first display area AA1 can be a flat screen or a curved screen, and the second display area AA2 can be a flat screen or a curved screen. In the drawings of the embodiment of the present application, the flat screen is shown. The first display area AA1 and the second display area AA2 have a certain bending angle, that is, the screen center lines of the first display area AA1 and the second display area AA2 are not parallel. For example, for a flat screen, the screen center line can refer to the perpendicular line at the screen center point, and for a curved screen, the screen center line can refer to the normal line at the screen center point. The first display area AA1 and the second display area AA2 are connected in a smooth transition.

[0073] Correspondingly, the part of the substrate 11 corresponding to the first display area AA1 is the first area, and the part of the substrate 11 corresponding to the second display area AA2 is the second area. The plurality of light emitting devices 13 are respectively arranged in the first area and the second area.

[0074] As shown in FIG. 1 and FIG. 2, the display panel 10 provided by the embodiment of the present application includes a substrate 11, a plurality of light emitting devices 13 and a plurality of first electrodes 14. Figure 7 and Figure 8 As shown, the display panel 10 provided by the embodiment of the present application further includes a first light shielding layer 20, a second flat layer 21 and a second light shielding layer 24. The first light shielding layer 20 is arranged on the side of each light emitting device 13 away from the substrate 11, and the first light shielding layer 20 is provided with a plurality of first light transmission openings 201. In the direction of the orthographic projection of the substrate 11, each first light transmission opening 201 is arranged corresponding to the first light emitting device 13a. The second flat layer 21 is arranged on the side of the first light shielding layer 20 away from the substrate 11, and the orthographic projection of the second flat layer 21 on the substrate 11 is located in the first area and the second area. The second light shielding layer 24 is arranged on the side of the second flat layer 21 away from the substrate 11, and the orthographic projection of the second light shielding layer 24 on the substrate 11 is located in the second area and outside the first area. The second light shielding layer 24 is provided with a plurality of second light transmission openings 240, and in the direction of the orthographic projection of the substrate 11, each second light transmission opening 240 is arranged corresponding to the first light emitting device 13a located in the second area.

[0075] That is, the light emitted by the light emitting device 13 in the entire display area AA is first emitted from the corresponding first light-transmitting opening 201. The first light-blocking layer 20 can avoid color mixing between adjacent pixels PX, and the first light-transmitting opening 201 can limit the emission angle of the light, as shown in FIG. 2B. This can reduce the viewing angle range of the display panel 10 and provide a privacy effect. Figure 9 The second light-blocking layer 24 and the second light-transmitting opening 240 further limit the emission angle of the light emitted by the light emitting device 13 in the second display area AA2, as shown in FIG. 2C. In this way, the overall viewing angle range of the relatively curved first display area AA1 and the second display area AA2 is within a small range for the user, and is suitable for the observation position of the user, and the privacy effect is good. Figure 9

[0076] In some embodiments of the present application, as shown in FIG. 2D, in the second area, the size of the second light-transmitting opening 240 is greater than or equal to the size of the corresponding first light-transmitting opening 201, and the width of the first light-blocking layer 20 between two adjacent first light-transmitting openings 201 is greater than or equal to the width of the second light-blocking layer 24 between two adjacent second light-transmitting openings 240. The purpose of such a design is that, in the direction away from the substrate 11, the light emitting device 13 emits light diffusively, the edge of the first light-transmitting opening 201 first blocks the light emitted by the light emitting device 13 at a large angle, and when the light further diffuses and reaches the second light-transmitting opening 240, the edge of the second light-transmitting opening 240 further blocks the light at a large angle. This can limit the emission angle of the light emitting device 13 in the second area, and will not significantly reduce the utilization rate of the light. Figure 8 In some optional embodiments, as shown in FIG. 2E, in the second area, the size M21 of the second light-transmitting opening 240 is greater than the size M11 of the corresponding first light-transmitting opening 201, and the width M12 of the first light-blocking layer 20 between two adjacent first light-transmitting openings 201 is greater than the width M22 of the second light-blocking layer 24 between two adjacent second light-transmitting openings 240.

[0077] Figure 8

[0078] ​​​It should be noted that in the direction perpendicular to the substrate 11, the shape of the first light-transmitting opening 201 can be rectangular, trapezoidal, or inverted trapezoidal. In the embodiments of the present application, the first light-transmitting opening 201 is illustrated as rectangular. Accordingly, the shape of the first light-blocking layer 20 between the first light-transmitting openings 201 is rectangular, inverted trapezoidal, or trapezoidal. In the direction perpendicular to the substrate 11, the size M21 of the first light-transmitting opening 201 at different positions is different, and the size of the first light-transmitting opening 201 refers to the smaller size in the direction perpendicular to the substrate 11 because the position with the smaller size determines the light angle. For example, for the trapezoidal first light-transmitting opening 201, the size refers to the size of the end close to the substrate 11 in the direction perpendicular to the substrate 11.

[0079] Accordingly, the width M12 of the first light-blocking layer 20 between the two adjacent first light-transmitting openings 201 is at the same position as the first light-transmitting opening 201. For example, for the trapezoidal first light-transmitting opening 201, the width M12 of the first light-blocking layer 20 between the two adjacent first light-transmitting openings 201 refers to the size of the end close to the substrate 11 in the direction perpendicular to the substrate 11.

[0080] The shape of the second light-transmitting opening 240 can be rectangular, trapezoidal, or inverted trapezoidal. The size M21 of the second light-transmitting opening 240 and the width M22 of the second light-blocking layer 24 between the two adjacent second light-transmitting openings 240 are defined as above.

[0081] In some embodiments, as shown in FIG. 2B, the edge of the second light-transmitting opening 240 is outwardly extended from the edge of the first light-transmitting opening 201 by a distance H. Figure 8

[0082] In some embodiments, as shown in FIG. 2B, the edge of the second light-transmitting opening 240 is outwardly extended from the edge of the first light-transmitting opening 201 by a distance H. Figure 8

[0083] In some optional embodiments, the edge of the second light-transmitting opening 240 is outwardly extended from the edge of the first light-transmitting opening 201 by a distance H greater than or equal to 2 microns and less than or equal to 10 microns.

[0084] In some optional embodiments, the edge of the second light-transmitting opening 240 is outwardly extended from the edge of the first light-transmitting opening 201 by a distance H greater than or equal to 2 microns and less than or equal to 8 microns.

[0085] ​​In some optional embodiments, the overhanging distance H of the edge of the second light-transmitting opening 240 relative to the edge of the first light-transmitting opening 201 is greater than or equal to 4 microns and less than or equal to 8 microns.

[0086] In some optional embodiments, the overhanging distance H of the edge of the second light-transmitting opening 240 relative to the edge of the first light-transmitting opening 201 is 2 microns, 2.5 microns, 3 microns, 3.5 microns, 4 microns, 4.5 microns, 5 microns, 5.5 microns, 6 microns, 6.5 microns, 7 microns, 7.5 microns, 8 microns, 8.5 microns, 9 microns, 9.5 microns, 10 microns, or the like.

[0087] In some embodiments, as shown in FIG. 2A, the thickness D of the second planar layer 21 is 10 microns to 30 microns. Figure 8 The smaller the thickness of the second planar layer 21, the smaller the restriction of the second light-transmitting opening 240 on the light-emitting angle of the light-emitting device 13; the greater the thickness of the second planar layer 21, the greater the restriction of the second light-transmitting opening 240 on the light-emitting angle of the light-emitting device 13.

[0088] In some embodiments, as shown in FIG. 2B, the thickness D of the second planar layer 21 is 15 microns to 30 microns. Figure 8

[0089] In some embodiments, as shown in FIG. 2C, the thickness D of the second planar layer 21 is 15 microns to 25 microns. Figure 8

[0090] In some optional embodiments, the thickness D of the second planar layer 21 is 10 microns, 11 microns, 12 microns, 13 microns, 14 microns, 15 microns, 16 microns, 17 microns, 18 microns, 19 microns, 20 microns, 21 microns, 22 microns, 23 microns, 24 microns, 25 microns, 26 microns, 27 microns, 28 microns, 29 microns, 30 microns, or the like.

[0091] In some embodiments of the present application, as shown in FIG. 3A, the display panel 10 further comprises a touch function layer 22, the touch function layer 22 is disposed on the side of the second planar layer 21 facing away from the substrate 11, and the orthographic projection of the touch function layer 22 on the substrate 11 is located in the first region and the second region; the second light-blocking layer 24 is disposed on the side of the touch function layer 22 facing away from the substrate 11. Figure 7 Figure 8 In some embodiments of the present application, as shown in FIG. 3B, the display panel 10 further comprises a touch function layer 22, the touch function layer 22 is disposed on the side of the second planar layer 21 facing away from the substrate 11, and the orthographic projection of the touch function layer 22 on the substrate 11 is located in the first region and the second region; the second light-blocking layer 24 is disposed on the side of the touch function layer 22 facing away from the substrate 11.

[0092] The touch function layer 22 comprises a plurality of touch electrodes (not shown), and the first region and the second region each have a plurality of touch electrodes. The orthographic projection of the plurality of touch electrodes in the first region on the substrate 11 is located in the first light-blocking layer 20 in the first region. That is, the plurality of touch electrodes in the first region should be blocked by the first light-blocking layer 20.

[0093] ​​​The orthogonal projection of the plurality of touch electrodes of the second region on the substrate 11 is located in the second light shielding layer 24 of the second region, and / or the orthogonal projection of the plurality of touch electrodes of the second region on the substrate 11 is located in the first light shielding layer 20 of the second region. That is, the plurality of touch electrodes of the second region should be shielded by the corresponding first light shielding layer 20 and / or the second light shielding layer 24.

[0094] In some embodiments of the present application, as shown in Figure 7 and Figure 8 The display panel 10 further includes a third flat layer 23, which is arranged on the side of the touch function layer 22 away from the substrate 11, and the orthogonal projection of the third flat layer 23 on the substrate 11 is located in the first region and the second region; and the second light shielding layer 24 is arranged on the side of the third flat layer 23 away from the substrate 11. The purpose of such arrangement is to provide a flat surface on the side of the touch function layer 22 away from the substrate 11 by means of the third flat layer 23, so as to facilitate the manufacturing of the second light shielding layer 24.

[0095] In some embodiments, as shown in Figure 8 The thickness L of the third flat layer 23 is 10 microns to 30 microns. Similarly, the smaller the thickness of the third flat layer 23, the smaller the restriction of the second light transmission opening 240 on the light emitting angle of the light emitting device 13; and the greater the thickness of the third flat layer 23, the greater the restriction of the second light transmission opening 240 on the light emitting angle of the light emitting device 13.

[0096] In some embodiments, as shown in Figure 8 The thickness L of the third flat layer 23 is 15 microns to 30 microns.

[0097] In some embodiments, as shown in Figure 8 The thickness L of the third flat layer 23 is 15 microns to 25 microns.

[0098] In some optional embodiments, the thickness L of the third flat layer 23 is 10 microns, 11 microns, 12 microns, 13 microns, 14 microns, 15 microns, 16 microns, 17 microns, 18 microns, 19 microns, 20 microns, 21 microns, 22 microns, 23 microns, 24 microns, 25 microns, 26 microns, 27 microns, 28 microns, 29 microns, 30 microns, etc.

[0099] The thickness D of the second flat layer 21 and the thickness L of the third flat layer 23 can be equal or not equal.

[0100] In some embodiments of the present application, as shown in Figure 10 and Figure 11As shown, the display panel 10 further comprises a third light shielding layer 26 located on the side of the second flat layer 21 away from the substrate 11, and a fourth flat layer 25 located on the side of the third light shielding layer 26 away from the substrate 11. The second light shielding layer 24 is located on the side of the fourth flat layer 25 away from the substrate 11; the third light shielding layer 26 comprises a plurality of third light transmission openings 260, each of which is arranged to correspond to at least one light emitting device 13 in the second region in the direction of orthographic projection of the substrate 11.

[0101] That is, the third light shielding layer 26 is arranged at least in the second region to limit the light emitting angle of the light emitting device 13 in the second display area AA2.

[0102] In some optional embodiments, the third light shielding layer 26 is also arranged in the first region, and the third light transmission openings 260 are also arranged to correspond to the light emitting device 13 in the first region, as shown in Figure 10 and Figure 11 to limit the light emitting angle of the light emitting device 13 in the first display area AA1.

[0103] In this embodiment, the third light shielding layer 26 is added between the first light shielding layer 20 and the second light shielding layer 24 to further limit the light emitting angle of the light emitting device 13 in the first display area AA1 and the second display area AA2, as shown in Figure 12 . In this way, the viewing angle in the entire display area AA can be further reduced.

[0104] As shown in Figure 10 , in the direction away from the substrate 11, the first region is sequentially provided with the first light shielding layer 20 and the third light shielding layer 26; as shown in Figure 11 , in the direction away from the substrate 11, the second region is sequentially provided with the first light shielding layer 20, the third light shielding layer 26 and the second light shielding layer 24.

[0105] In some embodiments, as shown in Figure 10 and Figure 11As shown, the size M31 of the third light-transmissive opening 260 is greater than or equal to the size M11 of the first light-transmissive opening 201, and the width M12 of the first light-blocking layer 20 between adjacent first light-transmissive openings 201 is greater than or equal to the size M32 of the third light-blocking layer between adjacent third light-transmissive openings 260. In the direction away from the substrate 11, the light-emitting device 13 emits light diffusively, and the edge of the first light-transmissive opening 201 first blocks the light rays of large angles of the light-emitting device 13, and when the light rays further diffuse and reach the third light-transmissive opening 260, the edge of the third light-transmissive opening 260 further blocks the light rays of large angles, which can limit the light-emitting angle of each light-emitting device 13 without significantly reducing the utilization rate of the light rays. In some alternative embodiments, the size M31 of the third light-transmissive opening 260 is greater than the size M11 of the first light-transmissive opening 201, and the width M12 of the first light-blocking layer 20 between adjacent first light-transmissive openings 201 is greater than the size M32 of the third light-blocking layer between adjacent third light-transmissive openings 260.

[0106] In some embodiments, as shown in Figure 10 and Figure 11 The edge of the third light-transmissive opening 260 is outwardly expanded relative to the edge of the first light-transmissive opening 201 by a distance W that is greater than or equal to 1 micrometer.

[0107] In some embodiments, as shown in Figure 10 and Figure 11 The edge of the third light-transmissive opening 260 is outwardly expanded relative to the edge of the first light-transmissive opening 201 by a distance W that is less than or equal to 10 micrometers.

[0108] The purpose of such arrangement is to ensure that the third light-blocking layer 26 and the third light-transmissive opening 260 thereof can further limit the light-emitting angle of the light-emitting device 13.

[0109] In some alternative embodiments, the edge of the third light-transmissive opening 260 is outwardly expanded relative to the edge of the first light-transmissive opening 201 by a distance W that is greater than or equal to 2 micrometers and less than or equal to 10 micrometers.

[0110] In some alternative embodiments, the edge of the third light-transmissive opening 260 is outwardly expanded relative to the edge of the first light-transmissive opening 201 by a distance W that is greater than or equal to 2 micrometers and less than or equal to 8 micrometers.

[0111] In some alternative embodiments, the edge of the third light-transmissive opening 260 is outwardly expanded relative to the edge of the first light-transmissive opening 201 by a distance W that is greater than or equal to 4 micrometers and less than or equal to 8 micrometers.

[0112] In some optional embodiments, the third light-transmissive opening 260 has an edge that is outwardly extended from an edge of the first light-transmissive opening 201 by a distance W of 2 microns, 2.5 microns, 3 microns, 3.5 microns, 4 microns, 4.5 microns, 5 microns, 5.5 microns, 6 microns, 6.5 microns, 7 microns, 7.5 microns, 8 microns, 8.5 microns, 9 microns, 9.5 microns, 10 microns, etc.

[0113] As shown in FIG. 2A, in this embodiment, the size of the second light-transmissive opening 240 is greater than or equal to the size of the first light-transmissive opening 201 in the second display area AA2. Figure 11 As shown in FIG. 2A, in this embodiment, the size of the second light-transmissive opening 240 is greater than or equal to the size of the first light-transmissive opening 201 in the second display area AA2.

[0114] As shown in FIG. 2A, in this embodiment, the size of the second light-transmissive opening 240 is greater than or equal to the size of the first light-transmissive opening 201 in the second display area AA2. Figure 11 As shown in FIG. 2A, in this embodiment, the size of the second light-transmissive opening 240 is greater than or equal to the size of the first light-transmissive opening 201 in the second display area AA2. Figure 11 As shown in FIG. 2A, in this embodiment, the size of the second light-transmissive opening 240 is greater than or equal to the size of the first light-transmissive opening 201 in the second display area AA2.

[0115] As shown in FIG. 2A, in this embodiment, the size of the second light-transmissive opening 240 is greater than or equal to the size of the first light-transmissive opening 201 in the second display area AA2. Figure 11 As shown in FIG. 2A, in this embodiment, the size of the second light-transmissive opening 240 is greater than or equal to the size of the first light-transmissive opening 201 in the second display area AA2.

[0116] As shown in FIG. 2A, in this embodiment, the size of the second light-transmissive opening 240 is greater than or equal to the size of the first light-transmissive opening 201 in the second display area AA2. Figure 11 As shown in FIG. 2A, in this embodiment, the size of the second light-transmissive opening 240 is greater than or equal to the size of the first light-transmissive opening 201 in the second display area AA2.

[0117] As shown in FIG. 2A, in this embodiment, the size of the second light-transmissive opening 240 is greater than or equal to the size of the first light-transmissive opening 201 in the second display area AA2. Figure 11 As shown in FIG. 2A, in this embodiment, the size of the second light-transmissive opening 240 is greater than or equal to the size of the first light-transmissive opening 201 in the second display area AA2.

[0118] In some optional embodiments, as shown in Figure 11 The overhanging distance H' of the edge of the second light-transmitting opening 240 relative to the edge of the third light-transmitting opening 260 is greater than or equal to 4 microns and less than or equal to 8 microns.

[0119] In some optional embodiments, as shown in Figure 11 The overhanging distance H' of the edge of the second light-transmitting opening 240 relative to the edge of the third light-transmitting opening 260 is 2 microns, 2.5 microns, 3 microns, 3.5 microns, 4 microns, 4.5 microns, 5 microns, 5.5 microns, 6 microns, 6.5 microns, 7 microns, 7.5 microns, 8 microns, 8.5 microns, 9 microns, 9.5 microns, 10 microns, etc.

[0120] As shown in Figure 11 The thickness M of the fourth flat layer 25 is 10 microns to 30 microns. Similarly, the smaller the thickness M of the fourth flat layer 25, the smaller the restriction of the second light-transmitting opening 240 on the light-emitting angle of the light-emitting device 13; the greater the thickness M of the fourth flat layer 25, the greater the restriction of the second light-transmitting opening 240 on the light-emitting angle of the light-emitting device 13.

[0121] In some embodiments, as shown in Figure 11 The thickness M of the fourth flat layer 25 is 15 microns to 30 microns.

[0122] In some embodiments, as shown in Figure 11 The thickness M of the fourth flat layer 25 is 15 microns to 25 microns.

[0123] In some optional embodiments, the thickness M of the fourth flat layer 25 is 10 microns, 11 microns, 12 microns, 13 microns, 14 microns, 15 microns, 16 microns, 17 microns, 18 microns, 19 microns, 20 microns, 21 microns, 22 microns, 23 microns, 24 microns, 25 microns, 26 microns, 27 microns, 28 microns, 29 microns, 30 microns, etc.

[0124] The thickness M of the fourth flat layer 25 can be equal to or different from the thickness D of the second flat layer 21 and the thickness L of the third flat layer 23.

[0125] In some embodiments of the present application, as shown in Figure 13 and Figure 14 The display panel 10 further includes a touch function layer 22, which is arranged on the side of the second flat layer 21 away from the substrate 11, and the orthographic projection of the touch function layer 22 on the substrate 11 is located in the first area and the second area; the third light-blocking layer 26 is located on the side of the touch function layer 22 away from the substrate 11.

[0126] The orthogonal projection of the plurality of touch electrodes of the first region on the substrate 11 is located within the first light shielding layer 20 of the first region and / or the third light shielding layer 26 of the first region. That is, the plurality of touch electrodes of the first region should be shielded by the first light shielding layer 20 and / or the third light shielding layer 26.

[0127] The orthogonal projection of the plurality of touch electrodes of the second region on the substrate 11 is located within at least one of the second light shielding layer 24 of the second region, the first light shielding layer 20 of the second region, and the third light shielding layer 26 of the first region. That is, the plurality of touch electrodes of the second region should be shielded by the corresponding first light shielding layer 20, second light shielding layer 24, or third light shielding layer 26.

[0128] In some embodiments, as shown in Figure 13 and Figure 14 The display panel 10 further includes a third flat layer 23, which is disposed on the side of the touch function layer 22 away from the substrate 11, and the orthogonal projection of the third flat layer 23 on the substrate 11 is located in the first region and the second region; and the third light shielding layer 26 is disposed on the side of the third flat layer 23 away from the substrate 11.

[0129] In some embodiments, as shown in Figure 14 The thickness L of the third flat layer 23 is 10 microns to 30 microns. Similarly, the smaller the thickness of the third flat layer 23, the smaller the restriction of the second light transmission opening 240 on the light-emitting angle of the light-emitting device 13; the greater the thickness of the third flat layer 23, the greater the restriction of the second light transmission opening 240 on the light-emitting angle of the light-emitting device 13.

[0130] In some embodiments, as shown in Figure 14 The thickness L of the third flat layer 23 is 15 microns to 30 microns.

[0131] In some embodiments, as shown in Figure 14 The thickness L of the third flat layer 23 is 15 microns to 25 microns.

[0132] In some optional embodiments, the thickness L of the third flat layer 23 is 10 microns, 11 microns, 12 microns, 13 microns, 14 microns, 15 microns, 16 microns, 17 microns, 18 microns, 19 microns, 20 microns, 21 microns, 22 microns, 23 microns, 24 microns, 25 microns, 26 microns, 27 microns, 28 microns, 29 microns, 30 microns, etc.

[0133] The thickness D of the second flat layer 21 and the thickness L of the third flat layer 23 can be equal or not equal.

[0134] In some embodiments of the present application, as shown in Figure 7 , Figure 8 , Figure 10 ,Figure 11 、 Figure 13 and Figure 14 As shown in FIG. 1, the display panel 10 further comprises an isolation structure 12 disposed on one side of the substrate 11, and a plurality of isolation openings 12a are formed in the isolation structure 12. As shown in FIG. 2, the light emitting devices 13 are disposed in the isolation openings 12a, and the first light shielding layer 20 is disposed on the side of the isolation openings 12a and the light emitting devices 13 away from the substrate 11. Figure 4

[0135] Referring to FIGS. 1 and 2, the isolation structure 12 is in a grid shape and defines a plurality of isolation openings 12a. The plurality of isolation openings 12a include a plurality of first isolation openings 12a1, a plurality of second isolation openings 12a2, and a plurality of third isolation openings 12a3 corresponding to the light emitting devices 13 of different colors. The first light emitting devices 13a are disposed corresponding to the first isolation openings 12a1, the second light emitting devices 13b are disposed corresponding to the second isolation openings 12a2, and the third light emitting devices 13c are disposed corresponding to the third isolation openings 12a3. Figure 2 Figure 5 In an embodiment, one light emitting device 13 is disposed corresponding to one isolation opening 12a. For example, the first light emitting devices 13a are disposed one-to-one corresponding to the first isolation openings 12a1, the second light emitting devices 13b are disposed one-to-one corresponding to the second isolation openings 12a2, and the third light emitting devices 13c are disposed one-to-one corresponding to the third isolation openings 12a3. At least part of the first light emitting devices 13a is disposed in the corresponding first isolation openings 12a1, at least part of the second light emitting devices 13b is disposed in the corresponding second isolation openings 12a2, and at least part of the third light emitting devices 13c is disposed in the corresponding third isolation openings 12a3. In another embodiment, a plurality of light emitting devices 13 are disposed corresponding to one isolation opening 12a. For example, a plurality of light emitting devices 13 of the same color are disposed corresponding to one isolation opening 12a.

[0136] As shown in FIGS. 1 and 2, in an embodiment, the isolation structure 12 includes an isolation portion 122 and a blocking portion 121 stacked in a direction away from the substrate 11 (i.e., the Z direction), and the width of the blocking portion 121 is greater than the width of the isolation portion 122. Alternatively, the orthographic projection of the isolation portion 122 on the substrate 11 is located within the orthographic projection of the blocking portion 121 on the substrate 11. Thus, the two end portions of the blocking portion 121 are protrudingly disposed compared to the side surfaces of the isolation portion 122, and this shape of the isolation structure 12 is also referred to as overhanging.

[0137] As shown in FIGS. 1 and 2, in an embodiment, the isolation structure 12 includes an isolation portion 122 and a blocking portion 121 stacked in a direction away from the substrate 11 (i.e., the Z direction), and the width of the blocking portion 121 is greater than the width of the isolation portion 122. Alternatively, the orthographic projection of the isolation portion 122 on the substrate 11 is located within the orthographic projection of the blocking portion 121 on the substrate 11. Thus, the two end portions of the blocking portion 121 are protrudingly disposed compared to the side surfaces of the isolation portion 122, and this shape of the isolation structure 12 is also referred to as overhanging. Figure 7 Figure 8 Figure 10 Figure 11 Figure 13 Figure 14

[0138] ​​​​​​​​In some embodiments, the isolation portion 122 and the barrier portion 121 are made of different materials, and the etching rate of the barrier portion 121 is less than that of the isolation portion 122.

[0139] Optionally, the material of the isolation portion 122 includes a conductive material, and specifically can include at least one of aluminum (Al) and an aluminum alloy. The aluminum alloy can include at least one of an aluminum-neodymium alloy (AlNd), an aluminum-yttrium alloy (AlY), or an aluminum-silicon alloy (AlSi).

[0140] Optionally, the barrier portion 121 can be a single-layer structure or a multi-layer structure. When the barrier portion 121 is a single-layer structure, the material of the barrier portion 121 can include at least one of titanium, titanium nitride, molybdenum, tungsten, a molybdenum-tungsten alloy, or a molybdenum-niobium alloy. When the barrier portion 121 is a multi-layer structure, one layer of the barrier portion 121 includes at least one of titanium, titanium nitride, molybdenum, tungsten, a molybdenum-tungsten alloy, or a molybdenum-niobium alloy, and another layer of the barrier portion 121 can include a conductive oxide or an inorganic insulating material. The conductive oxide can be, for example, indium tin oxide (ITO) or indium zinc oxide (IZO).

[0141] In some embodiments, with reference to Figure 7 、 Figure 8 、 Figure 10 、 Figure 11 、 Figure 13 and Figure 14 , the isolation structure 12 can further include a base portion 123 located on the side of the isolation portion 122 close to the substrate 11. The base portion 123 is arranged to protrude in the direction toward the isolation opening 12a relative to the isolation portion 122, or in other words, the orthographic projection of the isolation portion 122 on the substrate 11 is located within the orthographic projection of the base portion 123 on the substrate 11. Optionally, the material of the base portion 123 can include at least one of molybdenum (Mo), titanium (Ti), titanium nitride (TiN), a molybdenum-tungsten alloy (MoW), or a molybdenum-niobium alloy (MoNb).

[0142] In some embodiments of the present application, as shown in Figure 7 、 Figure 8 、 Figure 10 、 Figure 11 、 Figure 13 and Figure 14 , the display panel 10 further includes a pixel definition layer 17. The pixel definition layer 17 is arranged on the side of the substrate 11, and the isolation structure 12 is arranged on the side of the pixel definition layer 17 away from the substrate 11. The pixel definition layer 17 is provided with a plurality of pixel openings 170, and the pixel openings 170 and the isolation opening 12a are in communication in the orthographic projection direction of the substrate 11.

[0143] Specifically, the pixel definition layer 17 is provided with a first pixel opening communicating with the first isolation opening 12a1, a second pixel opening communicating with the second isolation opening 12a2, and a third pixel opening communicating with the third isolation opening 12a3. The areas of the orthographic projections of the first pixel opening, the second pixel opening, and the third pixel opening on the substrate 11 may be the same or different. The shapes of the orthographic projections of the pixel opening 170 and the corresponding isolation opening 12a on the substrate 11 may be the same or different. Generally speaking, the area of ​​the orthographic projection of the isolation opening 12a on the substrate 11 is larger than the area of ​​the orthographic projection of the pixel opening 170 communicating with the isolation opening 12a on the substrate 11. The orthographic projection of the pixel opening 170 of the light-emitting device 13 on the substrate 11 overlaps with the orthographic projection of the isolation opening 12a on the substrate 11. The pixel definition layer 17 is made of an inorganic material, such as an inorganic insulating material formed using at least one of silicon nitride (SiNx), silicon oxide (SiOx), and silicon oxynitride (SiON). The pixel definition layer 17 can be a single layer, a double layer, or two or more layers. The double or more layers of the pixel definition layer 17 can be layers made of different materials or layers prepared under different conditions.

[0144] In another embodiment, the isolation structure 12 is disposed within the groove of the pixel definition layer 17. Alternatively, the pixel definition layer 17 may not be provided in the display panel 10, and the isolation structure 12 may be disposed on one side of the substrate 11, with the isolation structure 12 in contact with one side of the substrate 11.

[0145] like Figure 7 , Figure 8 , Figure 10 , Figure 11 , Figure 13 and Figure 14 As shown, a first electrode 131 is disposed on a substrate 11, and a pixel opening 170 is provided on a pixel definition layer 17, through which at least a portion of the first electrode 131 is exposed. In some embodiments, the pixel definition layer 17 covers the end of the first electrode 131, that is, the pixel opening 170 exposes a portion of the first electrode 131. The light-emitting functional layer 132 of each third light-emitting device 13 is located within the pixel opening 170 and contacts the first electrode 131. Specifically, the light-emitting functional layer 132 covers the inner sidewall of the pixel opening 170 of the pixel definition layer 17 and the side surface of the pixel definition layer 17 facing away from the substrate 11.

[0146] The second electrode 133 of the first light emitting device 13a, the second light emitting device 13b, and the third light emitting device 13c covers the corresponding light emitting functional layer 132, respectively. The second electrode 133 is electrically connected with the isolation structure 12. For example, the second electrode 133 is connected with the isolation part 122 of the isolation structure 12, and / or the base part 123 is arranged to protrude in the direction toward the isolation opening 12a relative to the isolation part 122, and the second electrode 133 is arranged to contact the protruding area of the base part 123.

[0147] The first electrode 131 can be an anode, and the second electrode 133 can be a cathode. The first electrode 131 of each light emitting device 13 can be connected with the pixel circuit through a via hole, so that the pixel circuit drives the light emitting device 13 to emit light.

[0148] The first electrode 131 can include a multi-layer structure, for example, the first electrode 131 includes a reflective layer, and a pair of conductive oxide layers covering the upper surface and the lower surface of the reflective layer, respectively. The reflective layer can be formed by using a metal material with excellent light reflection property, such as silver. Each conductive oxide layer can be formed by a transparent conductive oxide such as ITO (Indium Tin Oxide), IZO (Indium Zinc Oxide), or IGZO (Indium Gallium Zinc Oxide), etc. The second electrode 133 is formed by a metal material such as an alloy of magnesium and silver (MgAg), etc.

[0149] Figure 5 is a schematic view of the light emitting functional layer 132 in the light emitting device 13 according to an embodiment of the present application. The light emitting functional layer 132 of at least one of the first light emitting device 13a, the second light emitting device 13b, and the third light emitting device 13c includes a hole injection layer HIL, a hole transport layer HTL, an electron blocking layer EBL, a light emitting material layer EML, a hole blocking layer HBL, an electron transport layer ETL, and an electron injection layer EIL, which are stacked in the direction away from the substrate 11 (i.e., the Z direction). The light emitting functional layer 132 can include one light emitting material layer EML, or a stacked light emitting functional layer 132 including a plurality of light emitting material layers EML.

[0150] In order to enable the light-emitting functional layer 132 to emit light, the pixel voltage VDD is provided to the first electrode 131 and the common voltage VSS is provided to the second electrode 133, a potential difference is formed between the first electrode 131 and the second electrode 133, so that the light-emitting functional layer 132 disposed between the first electrode 131 and the second electrode 133 emits light. In an embodiment, if a potential difference is formed between the first electrode 131 and the second electrode 133 of the first light-emitting device 13a, the light-emitting material layer EML of the light-emitting functional layer 132 emits blue light, if a potential difference is formed between the first electrode 131 and the second electrode 133 of the second light-emitting device 13b, the light-emitting material layer EML of the light-emitting functional layer 132 emits green light, and if a potential difference is formed between the first electrode 131 and the second electrode 133 of the third light-emitting device 13c, the light-emitting material layer EML of the light-emitting functional layer 132 emits red light.

[0151] The pixel voltage VDD of the first electrode 131 is provided by the pixel circuit, and the common voltage VSS of the second electrode 133 is provided by the isolation structure 12. Specifically, the second electrode 133 is electrically connected to the isolation structure 12, and the common voltage is supplied to the second electrode 133 by providing the common voltage to the isolation structure 12. That is, the isolation structure 12 has the function of supplying the common voltage to the second electrode 133.

[0152] In some embodiments of the present application, as shown in Figure 7 、 Figure 8 、 Figure 10 、 Figure 11 、 Figure 13 and Figure 14 , the display panel 10 further comprises a first encapsulation layer 14, the first encapsulation layer 14 comprises a plurality of encapsulation portions 140, the encapsulation portions 140 are located on the side of the second electrode 133 away from the substrate 11, and extend to the side of the isolation structure 12 away from the substrate 11 through the side wall of the isolation structure 12. In some embodiments, the orthographic projections of adjacent encapsulation portions 140 on the substrate 11 overlap or do not overlap. In some embodiments, there is a gap or contact between adjacent encapsulation portions 140.

[0153] The first encapsulation layer 14 comprises an inorganic material. In some embodiments, the material of the first encapsulation layer 14 comprises at least one of silicon nitride (SiN), silicon oxide (SiO), and silicon oxynitride (SiON).

[0154] The encapsulation portions 140 are in one-to-one correspondence with the light emitting devices 13. The plurality of encapsulation portions 140 include a plurality of encapsulation portions corresponding to the plurality of first light emitting devices 13a, a plurality of second encapsulation portions corresponding to the plurality of second light emitting devices 13b, and a plurality of third encapsulation portions corresponding to the plurality of third light emitting devices 13c. The encapsulation portions are arranged on the side of the corresponding first light emitting devices 13a away from the substrate 11. The second encapsulation portions are arranged on the side of the corresponding second light emitting devices 13b away from the substrate 11. The third encapsulation portions are arranged on the side of the corresponding third light emitting devices 13c away from the substrate 11.

[0155] As shown in Figure 7 , Figure 8 , Figure 10 , Figure 11 , Figure 13 and Figure 14 , in some embodiments, the display panel 10 further includes a second encapsulation layer 15 arranged on the side of the isolation structure 12 and the encapsulation portions 140 away from the substrate 11. That is, the second encapsulation layer 15 covers the isolation structure 12 and the encapsulation portions 140. Figure 7 , Figure 8 , Figure 10 , Figure 11 , Figure 13 and Figure 14 , the second encapsulation layer 15 is filled in the isolation openings 12a and has a flat or nearly flat surface on the side away from the substrate 11.

[0156] The second encapsulation layer 15 is an organic insulating material. Optionally, the second encapsulation layer 15 includes at least one of an epoxy resin, an acrylic resin, or the like.

[0157] As shown in Figure 7 , Figure 8 , Figure 10 , Figure 11 , Figure 13 and Figure 14 , in some embodiments, the display panel 10 further includes a third encapsulation layer 16 arranged on the side of the second encapsulation layer 15 away from the substrate 11. That is, the third encapsulation layer 16 covers the second encapsulation layer 15.

[0158] The third encapsulation layer 16 includes an inorganic material. In some embodiments, the material of the third encapsulation layer 16 includes at least one of silicon nitride (SiN), silicon oxide (SiO), and silicon oxynitride (SiON). The second encapsulation layer 15 and the third encapsulation layer 16 are continuously arranged at least on the display area AA as a whole. In some optional embodiments, a part of the second encapsulation layer 15 and the third encapsulation layer 16 is also arranged in the non-display area NA.

[0159] As shown in Figure 15 , the present application also provides a manufacturing method of a display panel, which includes:

[0160] Step S1, a plurality of light emitting devices 13 are manufactured on the first region and the second region of the substrate 11;

[0161] Step S4, a first light shielding layer 20 is manufactured on the side of the light emitting device 13 away from the substrate 11, the first light shielding layer 20 is provided with a plurality of first light transmission openings 201, and each first light transmission opening 201 is arranged corresponding to the light emitting device 13 in the direction of the orthographic projection of the substrate 11;

[0162] Step S5, a second planar layer 21 is manufactured on the side of the first light shielding layer 20 away from the substrate 11, and the orthographic projection of the second planar layer 21 on the substrate 11 is located in the first region and the second region; and

[0163] Step S10, a second light shielding layer 24 is manufactured on the side of the second planar layer 21 away from the substrate 11, the orthographic projection of the second light shielding layer 24 on the substrate 11 is located in the second region and outside the first region, and the second light shielding layer 24 is provided with a plurality of second light transmission openings 240, and each second light transmission opening 240 is arranged corresponding to the first light emitting device 13a located in the second region in the direction of the orthographic projection of the substrate 11.

[0164] In some embodiments of the present application, as shown in Figure 15 after step S1 and before step S4, the method further includes:

[0165] Step S2, a second encapsulation layer 15 is manufactured on the side of the light emitting device 13 away from the substrate 11; and

[0166] Step S3, a third encapsulation layer 16 is manufactured on the side of the second encapsulation layer 15 away from the substrate 11.

[0167] In some embodiments of the present application, as shown in Figure 15 after step S5 and before step S10, the method further includes:

[0168] Step S6, a touch function layer 22 is manufactured on the side of the second planar layer 21 away from the substrate 11;

[0169] In some embodiments, as shown in Figure 15 the manufacturing method of the display panel further includes:

[0170] Step S7, a third planar layer 23 is manufactured on the side of the touch function layer 22 away from the substrate 11.

[0171] In some embodiments of the present application, as shown in Figure 15 after step S5 and before step S10, the method further includes:

[0172] Step S8, a third light shielding layer 26 is made on the side of the second planar layer 21 away from the substrate 11, the third light shielding layer 26 is provided with a plurality of third light transmission openings 260, each of the third light transmission openings 260 is arranged corresponding to the light emitting device 13 in the orthographic projection direction of the substrate 11; and

[0173] Step S9, a fourth planar layer 25 is made on the side of the third light shielding layer 26 away from the substrate 11.

[0174] The second light shielding layer 24 is arranged on the side of the fourth planar layer 25 away from the substrate 11.

[0175] In some embodiments of the present application, as shown in Figure 15 After step S5 and before step S8, the method further includes:

[0176] Step S6, a touch function layer 22 is made on the side of the second planar layer 21 away from the substrate 11.

[0177] In some embodiments, as shown in Figure 15 The method of manufacturing the display panel further includes, step S7, a third planar layer 23 is made on the side of the touch function layer 22 away from the substrate 11.

[0178] The above step S1 includes:

[0179] As shown in Figure 16 Step S11, a plurality of first electrodes 131 are made on the side of the substrate 11.

[0180] As shown in Figure 17 Step S12, a pixel definition layer 17 and an isolation structure 12 are made on the side of the first electrode 131 away from the substrate 11, the isolation structure 12 is arranged on the side of the pixel definition layer 17 away from the substrate 11, the isolation structure 12 is provided with a plurality of isolation openings 12a, the pixel definition layer 17 is provided with a plurality of pixel openings 170, the pixel openings 170 and the isolation openings 12a are communicated in the orthographic projection direction of the substrate 11; the orthographic projection of the pixel openings 170 on the substrate 11 is within the orthographic projection of the first electrode 131 on the substrate 11; and

[0181] As shown in Figure 18 Step S13, a light emitting function layer 132, a second electrode 133 and an encapsulation part 140 are sequentially made in each of the isolation openings 12a and the corresponding pixel openings 170.

[0182] Specifically, in this step S11, a first electrode 131 material layer is deposited on the side of the pixel definition layer 17 and the isolation structure 12 away from the substrate 111, and the first electrode 131 material layer is patterned by using one mask to obtain a plurality of first electrodes 131 arranged at intervals.

[0183] Specifically, the step S12 comprises:

[0184] The pixel definition material layer, the base material layer, the isolation material layer and the barrier material layer are formed on the side of the first electrode 131 away from the substrate 11, and the barrier material layer, the isolation material layer, the base material layer and the pixel definition material layer are etched in sequence by using one mask to obtain the isolation structure 12 and the pixel definition layer 17 in a grid shape.

[0185] The isolation structure 12 comprises the base 123 obtained by patterning the base material layer, the isolation 122 obtained by patterning the isolation material layer, and the barrier 121 obtained by patterning the barrier material layer.

[0186] The grid-shaped structure of the isolation structure 12 defines a plurality of isolation openings 12a. The plurality of isolation openings 12a comprises a plurality of first isolation openings 12a1, a plurality of second isolation openings 12a2 and a plurality of third isolation openings 12a3. The grid-shaped structure of the pixel definition layer 17 defines a plurality of pixel openings 170.

[0187] Specifically, the step S13 comprises:

[0188] The step S131 comprises sequentially forming a light-emitting functional material layer, a second electrode material layer and a first encapsulation material layer on the side of the pixel definition layer 17 and the isolation structure 12 away from the substrate 111.

[0189] Since the light-emitting functional material layer, the second electrode material layer and the first encapsulation material layer are all prepared as a whole layer, the light-emitting functional material layer, the second electrode material layer and the first encapsulation material layer are present at the positions of the plurality of first isolation openings 12a1, the plurality of second isolation openings 12a2 and the plurality of third isolation openings 12a3.

[0190] The step S132 comprises etching to remove the film layer and the first encapsulation layer 14 of the first light-emitting device 13a at the positions of the plurality of second isolation openings 12a2 and the plurality of third isolation openings 12a3, so as to form only the light-emitting functional layer 132 and the second electrode 133 of the first light-emitting device 13a and the encapsulation part 140 corresponding to the first light-emitting device 13a at the positions of the plurality of first isolation openings 12a1.

[0191] The steps S131 to S132 are repeated to obtain the light-emitting functional layer 132, the second electrode 133 and the corresponding encapsulation part 140 of the second light-emitting device 13b located at the plurality of second isolation openings 12a2.

[0192] The steps S231 to S232 are repeated again to obtain the light-emitting functional layer 132, the second electrode 133 and the corresponding encapsulation part 140 of the third light-emitting device 13c located at the plurality of third isolation openings 12a3.

[0193] Finally, in some embodiments, the present application also provides a display device, which comprises the display panel 10 of the above-mentioned embodiments of the present application, or comprises the display panel 10 manufactured by the manufacturing method of the above-mentioned embodiments of the present application.

[0194] The display device can include a device with image processing capability, such as a mobile phone, a desktop computer, a notebook computer, a tablet computer, a vehicle display, a wearable device, etc.

[0195] The above-mentioned embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of protection of the present application. Therefore, the scope of protection of the present application patent should be subject to the appended claims.

Claims

1. A display panel, characterized by, The display panel comprises: a substrate comprising a first region and a second region, the first region and the second region having a certain bending angle therebetween; a plurality of light emitting devices respectively arranged in the first region and the second region; the first region and the second region are relatively close to each other on the light emitting side of the light emitting device and are bent; a first light shielding layer arranged on the side of each light emitting device away from the substrate, the first light shielding layer has a projection on the substrate located in the first region and the second region; a plurality of first light transmission openings are arranged on the first light shielding layer, and each first light transmission opening is arranged corresponding to the light emitting device in the projection direction of the substrate; a second flat layer arranged on the side of the first light shielding layer away from the substrate, and the second flat layer has a projection on the substrate located in the first region and the second region; and a second light shielding layer arranged on the side of the second flat layer away from the substrate, the second light shielding layer has a projection on the substrate located in the second region and outside the first region; a plurality of second light transmission openings are arranged on the second light shielding layer, and each second light transmission opening is arranged corresponding to the light emitting device in the second region in the projection direction of the substrate; The display panel further comprises a third light shielding layer and a fourth flat layer, the third light shielding layer is located on the side of the second flat layer away from the substrate, the fourth flat layer is arranged on the side of the third light shielding layer away from the substrate, and the second light shielding layer is arranged on the side of the fourth flat layer away from the substrate; the third light shielding layer is provided with a plurality of third light transmission openings, and each third light transmission opening is arranged corresponding to at least the light emitting device in the second region in the projection direction of the substrate; The second region has a smaller light emitting viewing angle than the first region. In the second region, the size of the second light transmission opening is greater than or equal to the size of the corresponding first light transmission opening, and the width of the first light shielding layer between adjacent two first light transmission openings is greater than the width of the second light shielding layer between adjacent two second light transmission openings.

2. The display panel of claim 1, wherein, The edge of the second light transmission opening is expanded outward relative to the edge of the first light transmission opening by a distance greater than or equal to 1 micrometer and less than or equal to 10 micrometers.

3. The display panel of claim 2, wherein, The size of the third light transmission opening is greater than the size of the first light transmission opening, and the size of the third light transmission opening is less than the size of the second light transmission opening; 4. The display panel of claim 1, wherein, The edge of the third light transmission opening is expanded outward relative to the edge of the first light transmission opening by a distance greater than or equal to 1 micrometer and less than or equal to 10 micrometers; and the edge of the second light transmission opening is expanded outward relative to the edge of the third light transmission opening by a distance greater than or equal to 1 micrometer and less than or equal to 10 micrometers. ​ 5. The display panel of claim 1, wherein, The display panel further comprises a touch function layer and a third flat layer, the touch function layer is arranged on the side of the second flat layer away from the substrate, the third flat layer is arranged on the side of the touch function layer away from the substrate, the orthographic projection of the touch function layer on the substrate is located in the first region and the second region, the orthographic projection of the third flat layer on the substrate is located in the first region and the second region; the third light shielding layer is located on the side of the third flat layer away from the substrate.

6. The display panel of claim 5, wherein, The touch function layer comprises a plurality of touch electrodes, the first region and the second region each have a plurality of touch electrodes, the orthographic projection of the plurality of touch electrodes in the second region on the substrate is located in the second light shielding layer of the second region, and / or the orthographic projection of the plurality of touch electrodes in the second region on the substrate is located in the first light shielding layer of the second region.

7. The display panel of any one of claims 1 to 6, wherein, The display panel further comprises an isolation structure, the isolation structure is arranged on one side of the substrate, a plurality of isolation openings are arranged on the isolation structure; the light emitting device is arranged in the isolation opening; the first light shielding layer is arranged on the side of the isolation opening and the light emitting device away from the substrate; The isolation structure comprises an isolation part and a blocking part which are sequentially stacked away from the substrate, the orthographic projection of the isolation part on the substrate is located in the orthographic projection of the blocking part on the substrate; The isolation structure further comprises a base part located on the side of the isolation part towards the substrate, the orthographic projection of the isolation part on the substrate is located in the orthographic projection of the base part on the substrate.

8. The display panel of claim 7, wherein, The display panel further comprises a pixel definition layer, the pixel definition layer is arranged on one side of the substrate, the isolation structure is arranged on the side of the pixel definition layer away from the substrate, a plurality of pixel openings are arranged on the pixel definition layer, the pixel openings and the isolation openings are connected in the orthographic projection direction of the substrate; The light emitting device comprises a first electrode, a light emitting function layer and a second electrode which are sequentially stacked away from the substrate; the second electrode is electrically connected with the base part.

9. The display panel of any one of claims 1 to 6, wherein, The display panel corresponding to the first region and the display panel corresponding to the second region are both flat display screens, the perpendicular lines of the two flat display screens are non-parallel; Or, the display panel corresponding to one of the first region and the second region is a flat display screen, and the display panel corresponding to the other region is a curved display screen, the perpendicular line of the flat display screen is non-parallel to the center line of the curved display screen; Or, the display panel corresponding to the first region and the display panel corresponding to the second region are both curved display screens, the center lines of the two curved display screens are non-parallel.

10. A manufacturing method of a display panel, comprising: Comprise: A plurality of light emitting devices are manufactured in the first region and the second region of the substrate, the first region and the second region have a certain bending angle, and the light emitting devices are relatively close to each other on the light emitting side. A first light shielding layer is made on a side of the light emitting device away from the substrate, a projection of the first light shielding layer on the substrate is located in the first region and the second region; A plurality of first light transmission openings are provided on the first light shielding layer, and each of the first light transmission openings is respectively arranged corresponding to the light emitting device in the projection direction of the substrate; A second planar layer is made on a side of the first light shielding layer away from the substrate, a projection of the second planar layer on the substrate is located in the first region and the second region; And A second light shielding layer is made on a side of the second planar layer away from the substrate, a projection of the second light shielding layer on the substrate is located in the second region and outside the first region; A plurality of second light transmission openings are provided on the second light shielding layer, and each of the second light transmission openings is respectively arranged corresponding to the light emitting device located in the second region in the projection direction of the substrate; After the second planar layer is made, before the second light shielding layer is made, further comprising: A third light shielding layer is made on a side of the second planar layer away from the substrate, and a fourth planar layer is made on a side of the third light shielding layer away from the substrate; The second light shielding layer is provided on a side of the fourth planar layer away from the substrate; the third light shielding layer has a plurality of third light transmission openings, and each of the third light transmission openings is respectively arranged corresponding to the light emitting device in the projection direction of the substrate; The light emitting angle of the second region is smaller than the light emitting angle of the first region.

11. The method of manufacturing a display panel according to claim 10, wherein After the second planar layer is made, before the third light shielding layer is made, further comprising: A touch function layer is made on a side of the second planar layer away from the substrate; and A third planar layer is made on a side of the touch function layer away from the substrate.

12. A display device comprising: The display panel comprises the display panel as claimed in any one of claims 1 to 9, or the display panel obtained by the manufacturing method of the display panel as claimed in claim 10 or 11.

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