Display panel, manufacturing method and display device

Abstract

The embodiment of the invention provides a display panel, a manufacturing method and a display device.The display panel comprises a substrate, a plurality of light-emitting devices, a first shading layer, a second flat layer and a second shading layer, the light-emitting devices are arranged in a first area and a second area respectively, the first shading layer is arranged on the side, away from the substrate, of each light-emitting device, and the second shading layer is arranged on the side, away from the substrate, of each light-emitting device. The first light shielding layer is provided with a plurality of first light-transmitting openings, the first light-transmitting openings correspond to the light-emitting devices respectively, the orthographic projection of the second light shielding layer on the substrate is located in the second area and outside the first area, the second light shielding layer is provided with a plurality of second light-transmitting openings, and the orthographic projection of the second light shielding layer on the substrate is located outside the first area. The second light-transmitting openings are arranged corresponding to the light-emitting devices located in the second area. The first shading layer is used for limiting the light-emitting angle of the light-emitting device in the whole display area, and the second shading layer is used for further limiting the light-emitting angle of the light-emitting device in part of the display area, so that the light-emitting angle of the relative bent part of the display panel is integrally small, and the peep-proof effect is good.

Description

Technical Field

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

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

[0003] In some scenarios, display panels, such as car screens, are curved screens, and both curved parts are required to have good anti-peeping viewing angles. Current display panels can only guarantee the viewing angle of one part, while the viewing angle of the other part cannot be guaranteed due to the curved shape. Summary of the Invention

[0004] In order to overcome the technical problems mentioned in the above technical background, an embodiment of the present application provides a display panel, including: a substrate comprising a first region and a second region; A plurality of light-emitting devices are respectively arranged in the first area and the second area; a first light-shielding layer, disposed on a side of each of the light-emitting devices facing away from the substrate, the first light-shielding layer being provided with a plurality of first light-transmitting openings, each of the first light-transmitting openings being respectively provided corresponding to the light-emitting device in the orthographic projection direction of the substrate; a second flat layer, provided on a side of the first light-shielding layer facing away from the substrate, wherein an orthographic projection of the second flat layer on the substrate is located in the first region and the second region; and A second light-shielding layer is provided on a side of the flat layer away from the substrate, and an orthographic projection of the second light-shielding layer on the substrate is located within the second area and outside the first area; a plurality of second light-transmitting openings are provided on the second light-shielding layer, and in the orthographic projection direction of the substrate, each of the second light-transmitting openings is respectively arranged corresponding to the light-emitting device located in the second area.

[0005] In some embodiments, in the second region, the size of the second light-transmitting opening is greater than or equal to the size of the corresponding first light-transmitting opening, and the width of the first light-shielding layer between two adjacent first light-transmitting openings is greater than the width of the second light-shielding layer between two adjacent second light-transmitting openings.

[0006] In some embodiments, an outward extension distance of an edge of the second light-transmitting opening relative to an edge of the first light-transmitting opening is greater than or equal to 1 micrometer and less than or equal to 10 micrometers.

[0007] In some embodiments, the display panel further includes a touch function layer and a third flat layer, the touch function layer is arranged on the side of the second flat layer facing away from the substrate, the third flat layer is arranged on the side of the touch function layer facing away from the substrate, the orthographic projection of the touch function layer on the substrate is located in the first area and the second area, and the orthographic projection of the third flat layer on the substrate is located in the first area and the second area; the second light-shielding layer is arranged on the side of the third flat layer facing away from the substrate.

[0008] In some embodiments, the touch function layer includes multiple touch electrodes, the first area and the second area both have multiple touch electrodes, the orthographic projections of the multiple touch electrodes in the second area on the substrate are located within the second light-shielding layer in the second area, and / or the orthographic projections of the multiple touch electrodes in the second area on the substrate are located within the first light-shielding layer in the second area.

[0009] In some embodiments, the display panel further includes 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 located on the side of the third light-shielding layer away from the substrate, and the second light-shielding layer is located 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-transmitting openings, and in the orthographic projection direction of the substrate, each of the third light-transmitting openings is arranged at least corresponding to the light-emitting device located in the second area.

[0010] In some embodiments, the size of the third light-transmitting opening is larger than the size of the first light-transmitting opening, and the size of the third light-transmitting opening is smaller than the size of the second light-transmitting opening; The outward expansion distance of the edge of the third light-transmitting opening relative to the edge of the first light-transmitting opening is greater than or equal to 1 micron and less than or equal to 10 microns; the outward expansion distance of the edge of the second light-transmitting opening relative to the edge of the third light-transmitting opening is greater than or equal to 1 micron and less than or equal to 10 microns.

[0011] In some embodiments, the display panel further includes 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 area and the second area, and the orthographic projection of the third flat layer on the substrate is located in the first area and the second area; the third shading layer is located on the side of the third flat layer away from the substrate.

[0012] In some embodiments, the display panel further includes an isolation structure, the isolation structure being disposed on one side of the substrate and having a plurality of isolation openings formed thereon; the light-emitting device being disposed within the isolation openings; and the first light-shielding layer being disposed on a side of the isolation openings and the light-emitting device facing away from the substrate. The isolation structure includes an isolation portion and a blocking portion stacked in sequence in a direction away from the substrate, wherein the orthographic projection of the isolation portion on the substrate is located within the orthographic projection of the blocking portion on the substrate; The isolation structure further includes a base portion located on a side of the isolation portion facing the substrate, and an orthographic projection of the isolation portion on the substrate is located within an orthographic projection of the base portion on the substrate.

[0013] In some embodiments, the display panel further comprises a pixel definition layer, wherein the pixel definition layer is provided on one side of the substrate, the isolation structure is provided on a side of the pixel definition layer facing away from the substrate, the pixel definition layer is provided with a plurality of pixel openings, and 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 functional layer and a second electrode which are sequentially stacked in a direction away from the substrate; the second electrode is electrically connected to the base.

[0014] In some embodiments, the display panel corresponding to the first area and the display panel corresponding to the second area are both flat screens, and perpendicular lines of the two flat screens are not parallel; 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, and a vertical line of the flat display screen is not parallel to a center line of the curved display screen; Alternatively, the display panel corresponding to the first area and the display panel corresponding to the second area are both curved display screens, and center lines of the two curved display screens are not parallel.

[0015] Another object of the present invention is to provide a method for manufacturing a display panel, which includes: fabricating a plurality of light emitting devices in the first and second regions of the substrate; A first light-shielding layer is formed on a side of the light-emitting device facing away from the substrate, wherein a plurality of first light-transmitting openings are provided on the first light-shielding layer, and each of the first light-transmitting openings is respectively provided corresponding to the light-emitting device in the orthographic projection direction of the substrate; forming a second flat layer on a side of the first light-shielding layer facing away from the substrate, wherein the orthographic projection of the second flat layer on the substrate is located in the first region and the second region; and A second light-shielding layer is formed on a side of the second flat layer facing away from the substrate, and an orthographic projection of the second light-shielding layer on the substrate is located within the second area and outside the first area; a plurality of second light-transmitting openings are provided on the second light-shielding layer, and in the orthographic projection direction of the substrate, each of the second light-transmitting openings is respectively arranged corresponding to the light-emitting device located in the second area.

[0016] In some embodiments, after forming the second planar layer and before forming the second light shielding layer, the process further includes: A third light-shielding layer is fabricated on a side of the second flat layer facing away from the substrate, and a fourth light-shielding layer is fabricated on a side of the third light-shielding layer facing away from the substrate; the second light-shielding layer is disposed on a side of the fourth flat layer facing away from the substrate; the third light-shielding layer has a plurality of third light-transmitting openings, and in the orthographic projection direction of the substrate, each of the third light-transmitting openings is disposed corresponding to the light-emitting device.

[0017] In some embodiments, after forming the second planar layer and before forming the third light shielding layer, the process further includes: forming a touch function layer on a side of the second planar layer facing away from the substrate; and A third flat layer is formed on a side of the touch function layer facing away from the substrate.

[0018] Another object of the embodiments of the present application is to provide a display device, including the display panel as described in the above embodiments, or including a display panel manufactured by the display panel manufacturing method as described in the above embodiments.

[0019] The display panel, manufacturing method, and display device provided by the embodiments of the present application have the following beneficial effects: The display panel provided in the embodiment of the present application uses a first shading layer to limit the light emission angle of the light-emitting device in the entire display area, and uses a second shading layer to further limit the light emission angle of the light-emitting device in part of the display area, so that the light emission angle of the relatively bent part of the display panel is smaller as a whole, and the anti-peeping effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic diagram of the planar structure of a display panel provided in an embodiment of the present application; Figure 2 Schematic diagram of the cross-sectional structure of the display panel provided in the embodiment of the present application Figure 1 , mainly showing the cross-sectional structure of the substrate; Figure 3 1 is a schematic diagram of a circuit structure of a sub-pixel of a display panel provided in an embodiment of the present application; Figure 4 is a planar schematic diagram of an isolation structure in a display panel provided by an embodiment of the present application; Figure 5 is a schematic diagram of a light-emitting functional layer of a light-emitting device in a display panel provided by an embodiment of the present application; Figure 6 is a schematic three-dimensional perspective view of a display panel provided in an embodiment of the present application; Figure 7 The display panel provided by one embodiment of the present application corresponds to Figure 1 Cross-section along the midline BB; Figure 8 The display panel provided by one embodiment of the present application corresponds to Figure 1 Cross-section along the mid-CC line; Figure 9 This is a light emitting diagram of a display panel provided in one embodiment of the present application; Figure 10 Another embodiment of the present application provides a display panel corresponding to Figure 1 Cross-section along the midline BB; Figure 11 Another embodiment of the present application provides a display panel corresponding to Figure 1 Cross-section along the mid-CC line; Figure 12 is a light emitting schematic diagram of a display panel provided by another embodiment of the present application; Figure 13 Another embodiment of the present application provides a display panel corresponding to Figure 1 Cross-section along the midline BB; Figure 14 Another embodiment of the present application provides a display panel corresponding to Figure 1 Cross-section along the mid-CC line; Figure 15 is a flowchart of the steps of the method for manufacturing a display panel provided in an embodiment of the present application; Figure 16 This is a structural diagram corresponding to sub-step S11 of step S1 of the method for manufacturing a display panel provided in an embodiment of the present application; Figure 17 This is a structural diagram corresponding to sub-step S12 of step S1 of the method for manufacturing a display panel provided in an embodiment of the present application; Figure 18This is a structural diagram corresponding to sub-step S13 of step S1 of the method for manufacturing a display panel provided in an embodiment of the present application. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0023] For ease of understanding, the accompanying drawings show mutually orthogonal X-axis, Y-axis, and Z-axis. 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 situation where various elements are observed parallel to the plane containing the X-direction and the Y-direction is referred to as a top view. Alternatively, the planes in the X-direction and the Y-direction are planes parallel to the display surface of the display panel, and the Z-direction is a direction parallel to the thickness direction of the display panel.

[0024] For certain elements, terms such as "upper" or "above" are sometimes used to describe the position of the element in the Z direction, while "lower" or "below" is used to describe the position of the element in the opposite direction. Furthermore, when terms such as "upper," "above," "lower," "below," and "relatively" are used to define the relative position of two elements, this includes not only a state in which the two elements are directly in contact but also a state in which the two elements are separated by a gap or other elements. Furthermore, terms such as "first," "second," and "third" are used solely for distinction and should not be construed as indicating or implying relative importance.

[0025] Figure 1 This is a schematic diagram of the structure of a display panel 10 according to one embodiment of the present application. The display panel 10 may be an organic light-emitting diode (OLED) display panel or a quantum dot light-emitting diode (QLED) display panel. The display panel 10 includes a display area AA having a display function and a non-display area NA.

[0026] The display area AA of the display panel 10 may be in a rectangular shape, or in other shapes such as a square, a circle, or an ellipse.

[0027] 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 optional 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, in addition to the sub-pixels SPX1, SPX2, and SPX3, the pixel PX may also include sub-pixels SPX that emit white or other colors of light. Figure 3 As shown, subpixels SPX include pixel circuits and light-emitting devices 13 driven by the pixel circuits to emit light of corresponding colors. The first subpixel SPX1 includes a first light-emitting device 13a, the second subpixel SPX2 includes a second light-emitting device 13b, and the third subpixel SPX3 includes a third light-emitting device 13c. Each pixel circuit drives at least one light-emitting device 13 to emit light.

[0028] refer to Figure 2 and Figure 7 As shown, the display panel 10 includes a substrate 11 and a plurality of light emitting devices 13 disposed on one side of the substrate 11 .

[0029] refer to Figure 3 The substrate 11 includes a substrate 111, a driving circuit layer 112 provided on one side of the substrate 111, and a first flat layer 19 provided 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 Transistor 18 in the pixel circuit is shown.

[0030] like Figure 2 and Figure 7 As shown, the light-emitting device 13 includes a first electrode 131, a light-emitting functional layer 132, and a second electrode 133, which are sequentially arranged on the side of the first planar layer 19 facing 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 a stacked first electrode 131, a light-emitting functional layer 132, and a second electrode 133. Depending on the specific material of the light-emitting functional layer 132, the first light-emitting device 13a, the second light-emitting device 13b, and the third light-emitting device 13c emit different colors.

[0031] First planar layer 19 is provided with a via (not shown), through which first electrode 131 of light-emitting device 13 is electrically connected to transistor 18 in driver circuit layer 112. Driver circuit layer 112 also includes at least one insulating layer, which may include at least one of an inorganic layer and an organic layer. The insulating layer is used to isolate the various layers in transistor 18.

[0032] In addition, the substrate 11 further includes scan lines for providing scan signals Scan and data lines for providing data signals Data to the pixel circuits.

[0033] refer 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 providing a data signal Data, the gate of the data transistor T2 is connected to a scan line 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 the storage capacitor C1 are respectively connected to the gate and source of the driving transistor T1, and the drain of the driving transistor T1 is connected to the light-emitting device 13. Figure 4 This is an embodiment of the pixel circuit. The pixel circuit of this application is not limited to Figure 4 The 2T1C pixel circuit shown may also be other pixel circuits, such as a 7T1C, 8T1C pixel circuit, etc.

[0034] like Figure 1 、 Figure 6 、 Figure 9 and Figure 12 As shown, the display area AA of the display panel 10 provided in the embodiment of the present application includes a first display area AA1 and a second display area AA2 that are bent relative to each other. The first display area AA1 and the second display area AA2 can be bent relative to each other, wherein the relative bending angle between the first display area AA1 and the second display area AA2 can be fixed or adjustable.

[0035] 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.

[0036] 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. The drawings of the embodiments of the present application all illustrate flat screens. There is a certain bending angle between the first display area AA1 and the second display area AA2, which means that the screen center lines of the first display area AA1 and the second display area AA2 are non-parallel. For example, for a flat screen, its screen center line can refer to the perpendicular line at the center point of the screen, and for a curved screen, its screen center line can refer to the normal line at the center point of the screen. The first display area AA1 and the second display area AA2 are connected by a smooth transition.

[0037] Correspondingly, the portion of the substrate 11 corresponding to the first display area AA1 is used as the first area, and the portion corresponding to the second display area AA2 is used as the second area. A plurality of light emitting devices 13 are respectively disposed in the first area and the second area.

[0038] like Figure 7 and Figure 8 As shown, the display panel 10 of the present embodiment further includes a first light-shielding layer 20, a second planar layer 21, and a second light-shielding layer 24. The first light-shielding layer 20 is disposed on the side of each light-emitting device 13 facing away from the substrate 11. The first light-shielding layer 20 is provided with a plurality of first light-transmitting openings 201. In the orthographic projection direction of the substrate 11, each first light-transmitting opening 201 is provided corresponding to a first light-emitting device 13a. The second planar layer 21 is disposed on the side of the first light-shielding layer 20 facing away from the substrate 11, with the orthographic projection of the second planar layer 21 on the substrate 11 located in the first region and the second region. The second light-shielding layer 24 is disposed on the side of the second planar layer 21 facing away from the substrate 11. The orthographic projection of the second light-shielding layer 24 on the substrate 11 is located within the second region and outside the first region. The second light-shielding layer 24 is provided with a plurality of second light-transmitting openings 240. In the orthographic projection direction of the substrate 11, each second light-transmitting opening 240 is provided corresponding to a first light-emitting device 13a located in the second region.

[0039] 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-shielding layer 20 can prevent color crosstalk between adjacent pixels PX, and the first light-transmitting opening 201 can limit the emission angle of the light. Figure 9 As shown, this can reduce the viewing angle range of the display panel 10 and provide an anti-peeping effect; the second light shielding layer 24 and its second light-transmitting opening 240 further limit the light emission angle of the light-emitting device 13 located in the second display area AA2, as shown in FIG. Figure 9 As shown, for the user, the overall viewing angle range of the relatively bent first display area AA1 and the second display area AA2 is within a relatively small range, and is suitable for the user's viewing position, with a good anti-peeping effect.

[0040] In some embodiments of the present application, Figure 8As shown, in the second region, the size of the second light-transmitting openings 240 is greater than or equal to the size of the corresponding first light-transmitting openings 201, and the width of the first light-shielding layer 20 between two adjacent first light-transmitting openings 201 is greater than or equal to the width of the second light-shielding layer 24 between two adjacent second light-transmitting openings 240. The purpose of this arrangement is that in the direction away from the substrate 11, the light emitting device 13 emits light in a diffuse manner. The edges of the first light-transmitting openings 201 first block the large-angle light from the light emitting device 13. When the light further diffuses and reaches the second light-transmitting openings 240, the edges of the second light-transmitting openings 240 further block the large-angle light. This can limit the light emission angle of the light emitting device 13 in the second region without significantly reducing the utilization rate of the light.

[0041] In some optional embodiments, Figure 8 As shown, in the second area, the size M21 of the second light-transmitting opening 240 is larger than the size M11 of the corresponding first light-transmitting opening 201, and the width M12 of the first light-shielding layer 20 between two adjacent first light-transmitting openings 201 is larger than the width M22 of the second light-shielding layer 24 between two adjacent second light-transmitting openings 240.

[0042] 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 embodiment of the present application, a rectangular first light-transmitting opening 201 is illustrated. Correspondingly, the shape of the first light-shielding layer 20 between the first light-transmitting openings 201 is rectangular, inverted trapezoidal, or trapezoidal. In the direction perpendicular to the substrate 11, the dimensions M21 of different positions of the first light-transmitting opening 201 are different. Since the position with the smaller size determines the light output angle, for first light-transmitting openings 201 of different shapes, its size refers to the smaller size among the sizes at various locations in the direction perpendicular to the substrate 11. For example, for a trapezoidal first light-transmitting opening 201, its size refers to the size of one end close to the substrate 11 in the direction perpendicular to the substrate 11.

[0043] Correspondingly, the width M12 of the first light-shielding layer 20 between two adjacent first light-transmitting openings 201 is taken at the same location as the first light-transmitting opening 201. For example, for a trapezoidal first light-transmitting opening 201, the width M12 of the first light-shielding layer 20 between two adjacent first light-transmitting openings 201 refers to the dimension of the first light-shielding layer 20 between the two adjacent first light-transmitting openings 201 in a direction perpendicular to the substrate 11 and at one end close to the substrate 11.

[0044] 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-shielding layer 24 between two adjacent second light-transmitting openings 240 are defined as above.

[0045] In some embodiments, such as Figure 8 As shown, the outer extension 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 1 micrometer.

[0046] In some embodiments, such as Figure 8 As shown, the outer extension distance H of the edge of the second light-transmitting opening 240 relative to the edge of the first light-transmitting opening 201 is less than or equal to 10 microns. The purpose of this setting is to ensure that the second light-shielding layer 24 and its second light-transmitting opening 240 can further limit the light emission angle of the light-emitting device 13.

[0047] In some optional embodiments, an outward extension 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 2 micrometers and less than or equal to 10 micrometers.

[0048] In some optional embodiments, an outward extension 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 2 micrometers and less than or equal to 8 micrometers.

[0049] In some optional embodiments, an outward extension 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 micrometers and less than or equal to 8 micrometers.

[0050] In some optional embodiments, the outward expansion 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, etc.

[0051] In some embodiments, such as Figure 8 As shown, the thickness D of the second flat layer 21 is 10 to 30 microns. The thinner the second flat layer 21, the less restricted the second light-transmitting opening 240 is on the light-emitting angle of the light-emitting device 13. The thicker the second flat layer 21, the more restricted the second light-transmitting opening 240 is on the light-emitting angle of the light-emitting device 13.

[0052] In some embodiments, such as Figure 8 As shown, the thickness D of the second planar layer 21 is 15 micrometers to 30 micrometers.

[0053] In some embodiments, such as Figure 8 As shown, the thickness D of the second planar layer 21 is 15 micrometers to 25 micrometers.

[0054] In some optional embodiments, the thickness D of the second flat 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, etc.

[0055] In some embodiments of the present application, Figure 7 and Figure 8 As shown, the display panel 10 further includes a touch function layer 22, which is disposed on the side of the second flat 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 area and the second area; the second light shielding layer 24 is disposed on the side of the touch function layer 22 facing away from the substrate 11.

[0056] The touch function layer 22 includes multiple touch electrodes (not shown), with multiple touch electrodes in both the first and second regions. The orthographic projections of the multiple touch electrodes in the first region onto the substrate 11 are located within the first light-shielding layer 20 in the first region. In other words, the multiple touch electrodes in the first region should be shielded by the first light-shielding layer 20.

[0057] The orthographic projections of the multiple touch electrodes in the second region on the substrate 11 are located within the second light-shielding layer 24 in the second region, and / or the orthographic projections of the multiple touch electrodes in the second region on the substrate 11 are located within the first light-shielding layer 20 in the second region. In other words, the multiple touch electrodes in the second region should be shielded by the corresponding first light-shielding layer 20 and / or second light-shielding layer 24.

[0058] In some embodiments of the present application, Figure 7 and Figure 8 As shown, the display panel 10 further includes a third planar layer 23, which is disposed on the side of the touch-sensitive functional layer 22 facing away from the substrate 11. The orthographic projection of the third planar layer 23 on the substrate 11 is located in the first and second regions. A second light-shielding layer 24 is disposed on the side of the third planar layer 23 facing away from the substrate 11. This arrangement provides a flat surface on the side of the touch-sensitive functional layer 22 facing away from the substrate 11, facilitating the fabrication of the second light-shielding layer 24.

[0059] In some embodiments, such as Figure 8As shown, the thickness L of the third flat layer 23 is 10 μm to 30 μm. Similarly, the thinner the thickness of the third flat layer 23, the less the second light-transmitting opening 240 restricts the light emission angle of the light-emitting device 13; and the thicker the third flat layer 23, the more the second light-transmitting opening 240 restricts the light emission angle of the light-emitting device 13.

[0060] In some embodiments, such as Figure 8 As shown, the thickness L of the third planar layer 23 is 15 micrometers to 30 micrometers.

[0061] In some embodiments, such as Figure 8 As shown, the thickness L of the third planar layer 23 is 15 micrometers to 25 micrometers.

[0062] 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.

[0063] The thickness D of the second flat layer 21 and the thickness L of the third flat layer 23 may be equal or different.

[0064] In some embodiments of the present application, Figure 10 and Figure 11 As shown, the display panel 10 further includes a third light-shielding layer 26 and a fourth planar layer 25. The third light-shielding layer 26 is located on the side of the second planar layer 21 facing away from the substrate 11, and the fourth planar layer 25 is located on the side of the third light-shielding layer 26 facing away from the substrate 11. The second light-shielding layer 24 is located on the side of the fourth planar layer 25 facing away from the substrate 11. The third light-shielding layer 26 has a plurality of third light-transmitting openings 260. In the orthographic projection direction of the substrate 11, each third light-transmitting opening 260 is provided corresponding to at least one of the light-emitting devices 13 located in the second region.

[0065] That is, the third light shielding layer 26 may be provided at least in the second region to limit the light emission angle of the light emitting device 13 in the second display area AA2 .

[0066] In some optional embodiments, the third light shielding layer 26 may also be provided in the first region, and the third light-transmitting opening 260 may also be provided corresponding to the light-emitting device 13 located in the first region, such as Figure 10 and Figure 11 As shown, the light emission angle of the light emitting device 13 in the first display area AA1 is limited.

[0067] In this embodiment, a 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 emission angle of the light emitting device 13 in the first display area AA1 and the second display area AA2. Figure 12 In this way, the viewing angle within the entire display area AA can be further reduced.

[0068] like Figure 10 As shown, in the direction away from the substrate 11, the first region is sequentially provided with a first light shielding layer 20 and a third light shielding layer 26; Figure 11 As shown, in the direction away from the substrate 11 , the second region is sequentially provided with a first light-shielding layer 20 , a third light-shielding layer 26 and a second light-shielding layer 24 .

[0069] In some embodiments, such as Figure 10 and Figure 11 As shown, the size M31 of the third light-transmitting opening 260 is greater than or equal to the size M11 of the first light-transmitting opening 201, and the width M12 of the first light-shielding layer 20 between adjacent first light-transmitting openings 201 is greater than or equal to the size M32 of the third light-shielding layer between adjacent third light-transmitting openings 260. In the direction away from the substrate 11, the light-emitting device 13 emits light in a diffuse manner. The edge of the first light-transmitting opening 201 first blocks the high-angle light from the light-emitting device 13. When the light further diffuses and reaches the third light-transmitting opening 260, the edge of the third light-transmitting opening 260 further blocks the high-angle light. This can limit the light emission angle of each light-emitting device 13 without significantly reducing the utilization efficiency of the light. In some optional embodiments, the size M31 of the third light-transmitting opening 260 is greater than the size M11 of the first light-transmitting opening 201, and the width M12 of the first light-shielding layer 20 between adjacent first light-transmitting openings 201 is greater than the size M32 of the third light-shielding layer between adjacent third light-transmitting openings 260.

[0070] In some embodiments, such as Figure 10 and Figure 11 As shown, the outward expansion distance W of the edge of the third light-transmitting opening 260 relative to the edge of the first light-transmitting opening 201 is greater than or equal to 1 micron.

[0071] In some embodiments, such as Figure 10 and Figure 11 As shown, the outward expansion distance W of the edge of the third light-transmitting opening 260 relative to the edge of the first light-transmitting opening 201 is less than or equal to 10 micrometers.

[0072] The purpose of such a configuration is to ensure that the third light shielding layer 26 and its third light-transmitting opening 260 can further limit the light emission angle of the light-emitting device 13 .

[0073] In some optional embodiments, an outward expansion distance W of the edge of the third light-transmitting opening 260 relative to the edge of the first light-transmitting opening 201 is greater than or equal to 2 micrometers and less than or equal to 10 micrometers.

[0074] In some optional embodiments, an outward expansion distance W of the edge of the third light-transmitting opening 260 relative to the edge of the first light-transmitting opening 201 is greater than or equal to 2 micrometers and less than or equal to 8 micrometers.

[0075] In some optional embodiments, the outward extension distance W of the edge of the third light-transmitting opening 260 relative to the edge of the first light-transmitting opening 201 is greater than or equal to 4 micrometers and less than or equal to 8 micrometers.

[0076] In some optional embodiments, the outward expansion distance W of the edge of the third light-transmitting opening 260 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, etc.

[0077] like Figure 11 As shown, in this embodiment, in the second display area AA2, the size of the second light-transmitting opening 240 is greater than or equal to the size of the first light-transmitting opening 201. In the direction away from the substrate 11, the light-emitting device 13 emits light in a diffuse manner. During the process of light from the first light-transmitting opening 201 and the third light-transmitting opening 260 to the second light-transmitting opening 240 in a diffuse manner, the edges of the third light-transmitting opening 260 and the second light-transmitting opening 240 further block light at a large angle. This can limit the light emission angle of each light-emitting device 13 without significantly reducing the utilization rate of light.

[0078] like Figure 11 As shown, in this embodiment, in the second display area AA2, the size M21 of the second light-transmitting opening 240 is greater than or equal to the size M31 of the third light-transmitting opening 260. The width M32 of the third light-shielding layer 26 between adjacent third light-transmitting openings 260 is greater than or equal to the width M22 of the second light-shielding layer 24 between adjacent second light-transmitting openings 240. Optionally, the size M21 of the second light-transmitting opening 240 is greater than the size M31 of the third light-transmitting opening 260, and the width M32 of the third light-shielding layer 26 between adjacent third light-transmitting openings 260 is greater than the width M22 of the second light-shielding layer 24 between adjacent second light-transmitting openings 240. In some embodiments, as Figure 11 As shown, the outer extension 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 1 micron.

[0079] In some embodiments, such as Figure 11As shown, the outward expansion distance H′ of the edge of the second light-transmitting opening 240 relative to the edge of the third light-transmitting opening 260 is less than or equal to 10 micrometers.

[0080] In some optional embodiments, Figure 11 As shown, the outward expansion 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 2 micrometers and less than or equal to 10 micrometers.

[0081] In some optional embodiments, Figure 11 As shown, the outward expansion 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 2 micrometers and less than or equal to 8 micrometers.

[0082] In some optional embodiments, Figure 11 As shown, the outward expansion 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 micrometers and less than or equal to 8 micrometers.

[0083] In some optional embodiments, Figure 11 As shown, the outward expansion 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.

[0084] like Figure 11 As shown, the thickness M of the fourth planar layer 25 is between 10 μm and 30 μm. Similarly, the smaller the thickness M of the fourth planar layer 25, the less the second light-transmitting opening 240 restricts the light emission angle of the light-emitting device 13; and the larger the thickness M of the fourth planar layer 25, the more the second light-transmitting opening 240 restricts the light emission angle of the light-emitting device 13.

[0085] In some embodiments, such as Figure 11 As shown, the thickness M of the fourth planar layer 25 is 15 micrometers to 30 micrometers.

[0086] In some embodiments, such as Figure 11 As shown, the thickness M of the fourth planar layer 25 is 15 micrometers to 25 micrometers.

[0087] 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.

[0088] The thickness M of the fourth flat layer 25 may 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 .

[0089] In some embodiments of the present application, Figure 13 and Figure 14 As shown, the display panel 10 also 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 shading layer 26 is located on the side of the touch function layer 22 away from the substrate 11.

[0090] The orthographic projections of the multiple touch electrodes in the first region on the substrate 11 are located within the first light-shielding layer 20 and / or the third light-shielding layer 26 in the first region. In other words, the multiple touch electrodes in the first region should be shielded by the first light-shielding layer 20 and / or the third light-shielding layer 26.

[0091] The orthographic projections of the multiple touch electrodes in the second region on the substrate 11 are located on at least one of the second light-shielding layer 24 in the second region, the first light-shielding layer 20 in the second region, and the third light-shielding layer 26 in the first region. In other words, the multiple touch electrodes in 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.

[0092] In some embodiments, such as Figure 13 and Figure 14 As shown, the display panel 10 further includes a third flat layer 23, which is disposed on the side of the touch function layer 22 facing away from the substrate 11, and the orthographic projection of the third flat layer 23 on the substrate 11 is located in the first area and the second area; a third light-shielding layer 26 is disposed on the side of the third flat layer 23 facing away from the substrate 11.

[0093] In some embodiments, such as Figure 14 As shown, the thickness L of the third flat layer 23 is 10 μm to 30 μm. Similarly, the thinner the thickness of the third flat layer 23, the less the second light-transmitting opening 240 restricts the light emission angle of the light-emitting device 13; and the thicker the third flat layer 23, the more the second light-transmitting opening 240 restricts the light emission angle of the light-emitting device 13.

[0094] In some embodiments, such as Figure 14 As shown, the thickness L of the third planar layer 23 is 15 micrometers to 30 micrometers.

[0095] In some embodiments, such as Figure 14 As shown, the thickness L of the third planar layer 23 is 15 micrometers to 25 micrometers.

[0096] 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.

[0097] The thickness D of the second flat layer 21 and the thickness L of the third flat layer 23 may be equal or different.

[0098] In some embodiments of the present application, Figure 7 、 Figure 8 、 Figure 10 、 Figure 11 、 Figure 13 and Figure 14 As shown, the display panel 10 further includes an isolation structure 12, which is disposed on one side of the substrate 11. The isolation structure 12 is provided with a plurality of isolation openings 12a. Figure 4 The light emitting device 13 is disposed in the isolation opening 12 a ; the first light shielding layer 20 is disposed on the side of the isolation opening 12 a and the light emitting device 13 that is away from the substrate 11 .

[0099] refer to Figure 2 and Figure 5 The isolation structure 12 is grid-shaped and defines a plurality of isolation openings 12a. Corresponding to light-emitting devices 13 of different colors, 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. The first light-emitting devices 13a are positioned corresponding to the first isolation openings 12a1, the second light-emitting devices 13b are positioned corresponding to the second isolation openings 12a2, and the third light-emitting devices 13c are positioned corresponding to the third isolation openings 12a3.

[0100] In one embodiment, one light-emitting device 13 is disposed in correspondence with one isolation opening 12a. For example, the first light-emitting device 13a is disposed in a one-to-one correspondence with the first isolation opening 12a1, the second light-emitting device 13b is disposed in a one-to-one correspondence with the second isolation opening 12a2, and the third light-emitting device 13c is disposed in a one-to-one correspondence with the third isolation opening 12a3. At least a portion of the first light-emitting device 13a is disposed within the corresponding first isolation opening 12a1, at least a portion of the second light-emitting device 13b is disposed within the corresponding second isolation opening 12a2, and at least a portion of the third light-emitting device 13c is disposed within the corresponding third isolation opening 12a3. In another embodiment, multiple light-emitting devices 13 are disposed in correspondence with one isolation opening 12a. For example, multiple light-emitting devices 13 emitting the same light-emitting color are disposed in correspondence with one isolation opening 12a.

[0101] like Figure 7 、 Figure 8 、 Figure 10 、 Figure 11 、 Figure 13 and Figure 14 As shown, in one 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). The width of the blocking portion 121 is greater than the width of the isolation portion 122. In other words, 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. As a result, the two ends of the blocking portion 121 protrude relative to the side surfaces of the isolation portion 122. This shape of the isolation structure 12 is also called an overhanging shape.

[0102] 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 lower than the etching rate of the isolation portion 122 .

[0103] Optionally, the material of the isolation portion 122 includes a conductive material, specifically at least one of aluminum (Al) and an aluminum alloy, and the aluminum alloy may include at least one of an aluminum neodymium alloy (AlNd), an aluminum yttrium alloy (AlY) or an aluminum silicon alloy (AlSi).

[0104] Optionally, the barrier portion 121 may have a single-layer structure or a multi-layer structure. If the barrier portion 121 has a single-layer structure, the material of the barrier portion 121 may include at least one of titanium, titanium nitride, molybdenum, tungsten, a molybdenum-tungsten alloy, or a molybdenum-niobium alloy. If the barrier portion 121 has a multi-layer structure, one layer of the barrier portion 121 may include 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 may include a conductive oxide or an inorganic insulating material, such as indium tin oxide (ITO) or indium zinc oxide (IZO).

[0105] In some embodiments, reference Figure 7 、 Figure 8 、 Figure 10 、 Figure 11 、 Figure 13 and Figure 14 The isolation structure 12 may further include a base 123 located on a side of the isolation portion 122 close to the substrate 11. The base 123 extends relative to the isolation portion 122 in a direction toward the isolation opening 12a. In other words, the orthographic projection of the isolation portion 122 on the substrate 11 is located within the orthographic projection of the base 123 on the substrate 11. Optionally, the material of the base 123 may include at least one of molybdenum (Mo), titanium (Ti), titanium nitride (TiN), molybdenum-tungsten alloy (MoW), or molybdenum-niobium alloy (MoNb).

[0106] In some embodiments of the present application, Figure 7 、 Figure 8 、 Figure 10 、 Figure 11 、 Figure 13 and Figure 14 As shown, the display panel 10 also includes a pixel definition layer 17, which is arranged on one side of the substrate 11, and the isolation structure 12 is arranged on the side of the pixel definition layer 17 facing away from the substrate 11. A plurality of pixel openings 170 are provided on the pixel definition layer 17, and the pixel openings 170 and the isolation openings 12a are connected in the positive projection direction of the substrate 11.

[0107] Specifically, the pixel definition layer 17 is provided with a first pixel opening connected to the first isolation opening 12a1, a second pixel opening connected to the second isolation opening 12a2, and a third pixel opening connected to 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 are the same or different. The shape of the pixel opening 170 and the orthographic projection of the corresponding isolation opening 12a on the substrate 11 can 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 connected to 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 material of the pixel definition layer 17 is an inorganic material, for example, the pixel definition layer 17 is formed using at least one inorganic insulating material selected from silicon nitride (SiNx), silicon oxide (SiOx), and silicon oxynitride (SiON). The pixel definition layer 17 is a single layer, a double layer, or two or more layers. The double layer or two or more layers of the pixel definition layer 17 are made of different materials or prepared under different conditions.

[0108] In another embodiment, the isolation structure 12 is disposed in a groove of the pixel definition layer 17. Alternatively, the pixel definition layer 17 may not be disposed in the display panel 10, and the isolation structure 12 is disposed on one side of the substrate 11, and the isolation structure 12 is disposed in contact with one side of the substrate 11.

[0109] like Figure 7 、 Figure 8 、 Figure 10 、 Figure 11 、 Figure 13 and Figure 14As shown, the first electrode 131 is disposed on the substrate 11, and a pixel opening 170 is provided on the 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 an end portion 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 surface of the pixel definition layer 17 facing away from the substrate 11.

[0110] The second electrodes 133 of the first light-emitting device 13a, the second light-emitting device 13b, and the third light-emitting device 13c respectively cover the corresponding light-emitting functional layer 132. The second electrodes 133 are electrically connected to the isolation structure 12. For example, the second electrode 133 is connected to the isolation portion 122 of the isolation structure 12, and / or the base 123 extends relative to the isolation portion 122 in a direction toward the isolation opening 12a, and the second electrode 133 is disposed in contact with the extended region of the base 123.

[0111] The first electrode 131 may be an anode, and the second electrode 133 may be a cathode. The first electrode 131 of each light emitting device 13 may be connected to a pixel circuit through a via hole, so that the pixel circuit drives the light emitting device 13 to emit light.

[0112] The first electrode 131 may include a multilayer structure. For example, the first electrode 131 may include a reflective layer and a pair of conductive oxide layers covering the upper and lower surfaces of the reflective layer, respectively. The reflective layer may be formed using, for example, a metal material with excellent light reflectivity, such as silver. Each conductive oxide layer may be formed using, for example, a transparent conductive oxide such as ITO (Indium Tin Oxide), IZO (Indium Zinc Oxide), or IGZO (Indium Gallium Zinc Oxide). The second electrode 133 may be formed using, for example, a metal material such as an alloy of magnesium and silver (MgAg).

[0113] Figure 5Schematic diagram of the light-emitting functional layer 132 in the light-emitting device 13 according to one 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, stacked in a direction away from the substrate 11 (i.e., the Z direction). The light-emitting functional layer 132 may include a single light-emitting material layer EML, or a stacked light-emitting functional layer 132 including multiple light-emitting material layers EML.

[0114] To enable the light-emitting functional layer 132 to emit light, a pixel voltage VDD is supplied to the first electrode 131 and a common voltage VSS is supplied to the second electrode 133, respectively. This creates a potential difference between the first electrode 131 and the second electrode 133, causing the light-emitting functional layer 132 disposed therebetween to emit light. In one 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. 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.

[0115] 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. By providing the common voltage to the isolation structure 12, the common voltage is supplied to the second electrode 133. In other words, the isolation structure 12 has the function of supplying the common voltage to the second electrode 133.

[0116] In some embodiments of the present application, Figure 7 、 Figure 8 、 Figure 10 、 Figure 11 、 Figure 13 and Figure 14 As shown, the display panel 10 further includes a first encapsulation layer 14, which includes a plurality of encapsulation portions 140. The encapsulation portions 140 are located on a side of the second electrode 133 facing away from the substrate 11, and extend through the sidewalls of the isolation structure 12 to a side of the isolation structure 12 facing away from the substrate 11. In some embodiments, the orthographic projections of adjacent encapsulation portions 140 on the substrate 11 may overlap or may not overlap. In some embodiments, adjacent encapsulation portions 140 may have gaps or contact with each other.

[0117] The first encapsulation layer 14 includes an inorganic material. In some embodiments, the material of the first encapsulation layer 14 includes at least one of silicon nitride (SiN), silicon oxide (SiO), and silicon oxynitride (SiON).

[0118] The encapsulation parts 140 correspond one-to-one with the light-emitting devices 13. The multiple encapsulation parts 140 include multiple encapsulation parts corresponding to the multiple first light-emitting devices 13a, multiple second encapsulation parts corresponding to the multiple second light-emitting devices 13b, and multiple third encapsulation parts corresponding to the multiple third light-emitting devices 13c. The encapsulation parts are provided on the side of the corresponding first light-emitting device 13a facing away from the substrate 11, the second encapsulation parts are provided on the side of the corresponding second light-emitting device 13b facing away from the substrate 11, and the third encapsulation parts are provided on the side of the corresponding third light-emitting device 13c facing away from the substrate 11.

[0119] like Figure 7 、 Figure 8 、 Figure 10 、 Figure 11 、 Figure 13 and Figure 14 As shown, in some embodiments, the display panel 10 further includes a second encapsulation layer 15, which is provided on a side of the isolation structure 12 and the encapsulation portion 140 that is away from the substrate 11. That is, the second encapsulation layer 15 covers the isolation structure 12 and the encapsulation portion 140. Figure 7 、 Figure 8 、 Figure 10 、 Figure 11 、 Figure 13 and Figure 14 As shown, the second encapsulation layer 15 is filled in the isolation opening 12 a and has a flat or nearly flat surface on the side facing away from the substrate 11 .

[0120] The second encapsulation layer 15 is an organic insulating material. Optionally, the second encapsulation layer 15 includes at least one of epoxy resin, acrylic resin and other resin materials.

[0121] like Figure 7 、 Figure 8 、 Figure 10 、 Figure 11 、 Figure 13 and Figure 14 As shown, in some embodiments, the display panel 10 further includes a third encapsulation layer 16 , which is disposed on a side of the second encapsulation layer 15 facing away from the substrate 11 . That is, the third encapsulation layer 16 covers the second encapsulation layer 15 .

[0122] The third encapsulation layer 16 comprises 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 disposed over at least the entire display area AA. In some optional embodiments, portions of the second encapsulation layer 15 and the third encapsulation layer 16 are also disposed in the non-display area NA.

[0123] like Figure 15 As shown, the embodiment of the present application further provides a method for manufacturing a display panel, which includes: Step S1, manufacturing a plurality of light emitting devices 13 in the first area and the second area of ​​the substrate 11; Step S4: forming a first light-shielding layer 20 on a side of the light-emitting device 13 facing away from the substrate 11. The first light-shielding layer 20 is provided with a plurality of first light-transmitting openings 201. In the orthographic projection direction of the substrate 11, each first light-transmitting opening 201 is provided corresponding to a light-emitting device 13. Step S5, forming a second flat layer 21 on the side of the first light-shielding layer 20 facing away from the substrate 11, wherein the orthographic projection of the second flat layer 21 on the substrate 11 is located in the first area and the second area; and In step S10, a second light-shielding layer 24 is formed on the side of the second flat layer 21 facing away from the substrate 11, and the orthographic projection of the second light-shielding layer 24 on the substrate 11 is located within the second area and outside the first area; a plurality of second light-transmitting openings 240 are provided on the second light-shielding layer 24, and in the orthographic projection direction of the substrate 11, each second light-transmitting opening 240 is respectively arranged to correspond to the first light-emitting device 13a located in the second area.

[0124] In some embodiments of the present application, Figure 15 As shown, after step S1 and before step S4, the following steps are further included: Step S2, forming a second encapsulation layer 15 on the side of the light emitting device 13 facing away from the substrate 11; and Step S3 , forming a third encapsulation layer 16 on the side of the second encapsulation layer 15 facing away from the substrate 11 .

[0125] In some embodiments of the present application, Figure 15 As shown, after step S5 and before step S10, the following steps are further included: Step S6, forming a touch function layer 22 on the side of the second planar layer 21 facing away from the substrate 11; In some embodiments, such as Figure 15 As shown, the manufacturing method of the display panel further includes: Step S7 : forming a third planar layer 23 on the side of the touch function layer 22 facing away from the substrate 11 .

[0126] In some embodiments of the present application, Figure 15 As shown, after step S5 and before step S10, the following steps are further included: Step S8: forming a third light-shielding layer 26 on a side of the second planar layer 21 facing away from the substrate 11. The third light-shielding layer 26 is provided with a plurality of third light-transmitting openings 260. In the orthographic projection direction of the substrate 11, each third light-transmitting opening 260 is respectively provided corresponding to the light-emitting device 13; and Step S9 : forming a fourth planar layer 25 on the side of the third light shielding layer 26 facing away from the substrate 11 .

[0127] The second light shielding layer 24 is disposed on a side of the fourth planar layer 25 facing away from the substrate 11 .

[0128] In some embodiments of the present application, Figure 15 As shown, after step S5 and before step S8, the following steps are further included: Step S6, forming a touch function layer 22 on the side of the second planar layer 21 facing away from the substrate 11; In some embodiments, such as Figure 15 As shown, the method for manufacturing the display panel further includes step S7 , manufacturing a third flat layer 23 on the side of the touch function layer 22 facing away from the substrate 11 .

[0129] The above-mentioned step S1 includes: like Figure 16 As shown, in step S11, a plurality of first electrodes 131 are formed on one side of the substrate 11; like Figure 17 As shown, in step S12, a pixel definition layer 17 and an isolation structure 12 are formed on a side of the first electrode 131 facing away from the substrate 11. The isolation structure 12 is located on the side of the pixel definition layer 17 facing away from the substrate 11. A plurality of isolation openings 12a are provided on the isolation structure 12, and a plurality of pixel openings 170 are provided on the pixel definition layer 17. The pixel openings 170 and the isolation openings 12a are connected in the orthographic projection direction of the substrate 11; the orthographic projection of the pixel openings 170 on the substrate 11 is located within the orthographic projection of the first electrode 131 on the substrate 11; and like Figure 18 As shown, in step S13 , the light-emitting functional layer 132 , the second electrode 133 and the encapsulation portion 140 are sequentially manufactured in each isolation opening 12 a and the corresponding pixel opening 170 .

[0130] Specifically, in step S11 , a first electrode 131 material layer is deposited on the side of the pixel definition layer 17 and the isolation structure 12 facing away from the substrate 111 , and the first electrode 131 material layer is patterned using a photomask to obtain a plurality of first electrodes 131 spaced apart.

[0131] Specifically, step S12 includes: A pixel definition material layer, a base material layer, an isolation material layer and a barrier material layer are formed on the side of the first electrode 131 facing away from the substrate 11. A mask is used to etch the barrier material layer, the isolation material layer, the base material layer and the pixel definition material layer in sequence to obtain a grid-shaped isolation structure 12 and a pixel definition layer 17.

[0132] The isolation structure 12 includes a base portion 123 formed by patterning a base material layer, an isolation portion 122 formed by patterning an isolation portion material layer, and a barrier portion 121 formed by patterning a barrier portion material layer.

[0133] The grid-like structure of the isolation structure 12 defines a plurality of isolation openings 12a, including a plurality of first isolation openings 12a1, a plurality of second isolation openings 12a2, and a plurality of third isolation openings 12a3. The grid-like structure of the pixel definition layer 17 defines a plurality of pixel openings 170.

[0134] Specifically, step S13 includes: In step S131 , a light-emitting functional material layer, a second electrode material layer, and a first packaging material layer are sequentially formed on the side of the pixel definition layer 17 and the isolation structure 12 facing away from the substrate 111 .

[0135] Since the light-emitting functional material layer, the second electrode material layer and the first packaging material layer are all prepared as a whole layer, the positions of the multiple first isolation openings 12a1, the multiple second isolation openings 12a2 and the multiple third isolation openings 12a3 all have the light-emitting functional material layer, the second electrode material layer and the first packaging material layer.

[0136] In step S132, the film layer and the first encapsulation layer 14 of the first light-emitting device 13a at the positions of the multiple second isolation openings 12a2 and the multiple third isolation openings 12a3 are etched away, thereby forming 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 only at the positions of the multiple first isolation openings 12a1.

[0137] By repeating the above steps S131 to S132 , the light-emitting functional layer 132 , the second electrode 133 and the corresponding packaging portion 140 of the second light-emitting device 13 b located in the plurality of second isolation openings 12 a 2 can be manufactured.

[0138] By repeating the above steps S231 to S232 again, the light-emitting functional layer 132 , the second electrode 133 and the corresponding packaging portion 140 of the third light-emitting device 13 c located in the plurality of third isolation openings 12 a 3 can be manufactured.

[0139] Finally, in some embodiments, the present application further provides a display device, which includes the display panel 10 described in the above embodiments of the present application, or includes the display panel 10 manufactured by the display panel manufacturing method described in the above embodiments.

[0140] The display device may include a device with image processing capabilities, such as a mobile phone, a desktop computer, a laptop computer, a tablet computer, a car display, a wearable device, etc.

[0141] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A display panel, characterized in that: include: a substrate comprising a first region and a second region; A plurality of light-emitting devices are respectively arranged in the first area and the second area; a first light-shielding layer, disposed on a side of each of the light-emitting devices facing away from the substrate, the first light-shielding layer being provided with a plurality of first light-transmitting openings, each of the first light-transmitting openings being respectively provided corresponding to the light-emitting device in the orthographic projection direction of the substrate; a second flat layer, provided on a side of the first light-shielding layer away from the substrate, wherein an orthographic projection of the second flat layer on the substrate is located in the first region and the second region; as well as a second light-shielding layer, provided on a side of the planar layer facing away from the substrate, wherein an orthographic projection of the second light-shielding layer on the substrate is located within the second region and outside the first region; A plurality of second light-transmitting openings are provided on the second light-shielding layer. In the orthographic projection direction of the substrate, each of the second light-transmitting openings is respectively provided corresponding to the light-emitting device located in the second area.

2. The display panel according to claim 1, wherein In the second region, the size of the second light-transmitting opening is greater than or equal to the size of the corresponding first light-transmitting opening, and the width of the first light-shielding layer between two adjacent first light-transmitting openings is greater than the width of the second light-shielding layer between two adjacent second light-transmitting openings.

3. The display panel according to claim 2, wherein: An outward extension distance of an edge of the second light-transmitting opening relative to an edge of the first light-transmitting opening is greater than or equal to 1 micrometer and less than or equal to 10 micrometers.

4. The display panel according to claim 1, wherein: The display panel also includes a touch function layer and a third flat layer. The touch function layer is arranged on a side of the second flat layer facing away from the substrate, and the third flat layer is arranged on a side of the touch function layer facing away from the substrate. The orthographic projection of the touch function layer on the substrate is located in the first area and the second area, and the orthographic projection of the third flat layer on the substrate is located in the first area and the second area; the second light-shielding layer is arranged on a side of the third flat layer facing away from the substrate.

5. The display panel according to claim 4, wherein: The touch function layer includes multiple touch electrodes, and the first area and the second area both have multiple touch electrodes. The orthographic projections of the multiple touch electrodes in the second area on the substrate are located within the second light-shielding layer in the second area, and / or the orthographic projections of the multiple touch electrodes in the second area on the substrate are located within the first light-shielding layer in the second area.

6. The display panel according to claim 1, wherein: The display panel also includes a third light-shielding layer and a fourth flat layer, the third light-shielding layer is located on a side of the second flat layer facing away from the substrate, the fourth flat layer is located on a side of the third light-shielding layer facing away from the substrate, and the second light-shielding layer is located on a side of the fourth flat layer facing away from the substrate; the third light-shielding layer is provided with a plurality of third light-transmitting openings, and in the orthographic projection direction of the substrate, each of the third light-transmitting openings is arranged at least corresponding to the light-emitting device located in the second area.

7. The display panel according to claim 6, wherein: The size of the third light-transmitting opening is larger than that of the first light-transmitting opening, and the size of the third light-transmitting opening is smaller than that of the second light-transmitting opening; The outward expansion distance of the edge of the third light-transmitting opening relative to the edge of the first light-transmitting opening is greater than or equal to 1 micron and less than or equal to 10 microns; the outward expansion distance of the edge of the second light-transmitting opening relative to the edge of the third light-transmitting opening is greater than or equal to 1 micron and less than or equal to 10 microns.

8. The display panel according to claim 6, wherein: The display panel also includes a touch function layer and a third flat layer. The touch function layer is arranged on a side of the second flat layer facing away from the substrate, and the third flat layer is arranged on a side of the touch function layer facing away from the substrate. The orthographic projection of the touch function layer on the substrate is located in the first area and the second area, and the orthographic 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 facing away from the substrate.

9. The display panel according to any one of claims 1 to 8, wherein: The display panel further includes an isolation structure, the isolation structure being provided on one side of the substrate and having a plurality of isolation openings formed thereon; the light emitting device being provided in the isolation openings; and the first light shielding layer being provided on a side of the isolation openings and the light emitting device facing away from the substrate. The isolation structure includes an isolation portion and a blocking portion stacked in sequence in a direction away from the substrate, wherein the orthographic projection of the isolation portion on the substrate is located within the orthographic projection of the blocking portion on the substrate; The isolation structure further includes a base portion located on a side of the isolation portion facing the substrate, and an orthographic projection of the isolation portion on the substrate is located within an orthographic projection of the base portion on the substrate.

10. The display panel according to claim 9, wherein: The display panel further includes a pixel definition layer, the pixel definition layer being disposed on one side of the substrate, the isolation structure being disposed on a side of the pixel definition layer facing away from the substrate, the pixel definition layer being provided with a plurality of pixel openings, the pixel openings and the isolation openings being connected in an orthographic projection direction of the substrate; The light emitting device comprises a first electrode, a light emitting functional layer and a second electrode which are sequentially stacked in a direction away from the substrate; the second electrode is electrically connected to the base.

11. The display panel according to any one of claims 1 to 8, wherein: The display panel corresponding to the first area and the display panel corresponding to the second area are both flat screens, and perpendicular lines of the two flat screens are not parallel; 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, and a vertical line of the flat display screen is not parallel to a center line of the curved display screen; Alternatively, the display panel corresponding to the first area and the display panel corresponding to the second area are both curved display screens, and center lines of the two curved display screens are not parallel.

12. A method for manufacturing a display panel, characterized in that: include: fabricating a plurality of light emitting devices in the first and second regions of the substrate; A first light-shielding layer is formed on a side of the light-emitting device facing away from the substrate, wherein a plurality of first light-transmitting openings are provided on the first light-shielding layer, and each of the first light-transmitting openings is respectively provided corresponding to the light-emitting device in the orthographic projection direction of the substrate; forming a second flat layer on a side of the first light-shielding layer facing away from the substrate, wherein the orthographic projection of the second flat layer on the substrate is located in the first region and the second region; as well as A second light-shielding layer is formed on a side of the second planar layer facing away from the substrate, wherein an orthographic projection of the second light-shielding layer on the substrate is located within the second region and outside the first region; A plurality of second light-transmitting openings are provided on the second light-shielding layer. In the orthographic projection direction of the substrate, each of the second light-transmitting openings is respectively provided corresponding to the light-emitting device located in the second area.

13. The method for manufacturing a display panel according to claim 12, wherein: After forming the second planar layer and before forming the second light shielding layer, the method further includes: A third light-shielding layer is fabricated on a side of the second flat layer facing away from the substrate, and a fourth light-shielding layer is fabricated on a side of the third light-shielding layer facing away from the substrate; the second light-shielding layer is disposed on a side of the fourth flat layer facing away from the substrate; the third light-shielding layer has a plurality of third light-transmitting openings, and in the orthographic projection direction of the substrate, each of the third light-transmitting openings is disposed corresponding to the light-emitting device.

14. The method for manufacturing a display panel according to claim 13, wherein: After forming the second planar layer and before forming the third light shielding layer, the method further includes: forming a touch function layer on a side of the second planar layer facing away from the substrate; and A third flat layer is formed on a side of the touch function layer facing away from the substrate.

15. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 11, or comprises a display panel manufactured by the method for manufacturing a display panel according to any one of claims 12 to 14.

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