Display panel and preparation method therefor, and display apparatus

Abstract

The present disclosure provides a display panel and a display apparatus. The display panel comprises a first area, and the display panel comprises a substrate; a display function layer and an isolation structure layer that are located on the substrate, wherein the isolation structure layer comprises a light-transmitting part and a plurality of isolation openings, and the display function layer comprises light-emitting devices located in the isolation openings; and a touch structure, located on the side of the isolation structure layer away from the substrate. The display panel can be applied to the field of under-screen recognition.

Description

Display panel and manufacturing method thereof, and display device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent applications No. 202310730898.7 filed on June 16, 2023, Chinese patent application No. 202310721853.3 filed on June 16, 2023, Chinese patent application 202310775927.1 filed on June 27, 2023, and Chinese patent application 202311029013.7 filed on August 14, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present disclosure relates to the field of display technology, and in particular, to a display panel, a manufacturing method thereof, and a display device.

[0004] Background of the Invention

[0005] Organic Light-Emitting Diode (OLED) is an organic thin-film electroluminescent device. It has attracted great attention and is widely used in electronic display products due to its advantages such as simple preparation process, low cost, low power consumption, high brightness, wide viewing angle, high contrast and flexible display.

[0006] However, current electronic display products are limited by their own structural design, making it difficult to further reduce the pixel gap and further apply it to the field of under-screen recognition.

[0007] Summary of the Invention

[0008] A first aspect of the present disclosure provides a display panel, which includes: a substrate; an isolation structure layer located on the substrate, wherein the isolation structure layer includes a light-transmitting portion and a plurality of isolation openings; a display function layer including a light-emitting device located in the isolation opening; and a touch structure located on a side of the isolation structure layer away from the substrate.

[0009] According to a second aspect of the present disclosure, a display panel is provided, which includes: a substrate; an isolation structure layer located on the substrate, the isolation structure layer including an isolation structure and a plurality of isolation openings, a light-transmitting portion being provided on the isolation structure, the isolation structure including a first isolation layer and a second isolation layer arranged in a stacked manner, the first isolation layer being located between the substrate and the second isolation layer, the first isolation layer including a first end close to the second isolation layer and a second end away from the second isolation layer, the orthographic projection of the first end on the substrate being located within the orthographic projection of the second end on the substrate; and a display function layer including a light-emitting device located in the isolation opening.

[0010] A third aspect of the present disclosure provides a display panel, which includes a first area, and the display panel includes a substrate; a display function layer, which is located on the substrate and at least partially located in the first area, the display function layer includes a plurality of light-emitting devices, and the light-emitting devices have light-emitting units; and an isolation structure layer, which is located on the substrate and encloses a plurality of isolation openings, wherein at least one light-emitting device is arranged in each isolation opening, the isolation structure layer isolates adjacent light-emitting units, and the portion of the isolation structure layer located in the first area is provided with at least one first light-transmitting opening to allow the area of ​​the display panel where the first light-transmitting openings are distributed to transmit light.

[0011] In the above scheme, the application of the isolation structure layer can make it possible to eliminate the need for a mask plate during the preparation process of the light-emitting device, so there is no need to consider the alignment accuracy of the preparation process, which is conducive to reducing the gap size of the light-emitting device to improve the pixel PPI of the display panel; in addition, in the first area, by providing a first light-transmitting opening in the isolation structure layer, the area of ​​the display panel where the first light-transmitting opening is provided can be transparent, so that the first area of ​​the display panel can realize under-screen recognition functions such as fingerprint recognition, under-screen camera, etc.

[0012] A fourth aspect of the present disclosure provides a display device, which includes an identification device and a display panel in any embodiment of the first aspect above, and the orthographic projection of the identification device on the substrate at least partially overlaps with the orthographic projection of the light-transmitting portion on the substrate; preferably, the identification device includes a fingerprint identification sensor and / or a camera, and the fingerprint identification sensor is located within the substrate; or, preferably, the identification device includes a camera, and the camera is located on the side of the substrate away from the display function layer and / or is located within the substrate.

[0013] The fifth aspect of the present disclosure provides a method for preparing a display panel, including: preparing a substrate; preparing an isolation structure on the substrate, the isolation structure defining an isolation opening; preparing a display function layer on the substrate, the display function layer including a light-emitting device located in the isolation opening; and preparing a first light-transmitting opening on the isolation structure.

[0014] BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG1 is a schematic diagram showing a planar structure of a display panel provided by an embodiment of the present disclosure.

[0016] FIG. 2 is an enlarged view of the S1 region of the display panel shown in FIG. 1 .

[0017] FIG. 3 is a schematic planar structural diagram of an isolation structure layer in the display panel shown in FIG. 2 .

[0018] FIG4 is a cross-sectional view of the display panel shown in FIG2 along line M1-N1.

[0019] FIG5 is a cross-sectional view of the display panel shown in FIG2 along line M2-N2.

[0020] FIG6 is an enlarged view of a portion of the first region of another display panel provided by an embodiment of the present disclosure.

[0021] FIG. 7 is a schematic diagram showing a planar structure of an isolation structure layer in the display panel shown in FIG. 6 .

[0022] FIG8 is an enlarged view of a portion of the first region of another display panel provided by an embodiment of the present disclosure.

[0023] FIG9 is a schematic planar structural diagram of the isolation structure layer in the display panel shown in FIG8 .

[0024] FIG10 is an enlarged view of a portion of the first region of another display panel provided by an embodiment of the present disclosure.

[0025] FIG11 is a schematic diagram showing a planar structure of an isolation structure layer in the display panel shown in FIG10 .

[0026] FIG12 is an enlarged view of a portion of the first region of another display panel provided by an embodiment of the present disclosure.

[0027] FIG13 is a schematic diagram showing a planar structure of the isolation structure layer in the display panel shown in FIG12 .

[0028] FIG14 is an enlarged view of a portion of the first region of another display panel provided by an embodiment of the present disclosure.

[0029] FIG15 is an enlarged view of a portion of the first region of another display panel provided by an embodiment of the present disclosure.

[0030] FIG16 is a cross-sectional view of a partial area of ​​another display panel provided by an embodiment of the present disclosure.

[0031] FIG17 is an enlarged view of a portion of the first region of another display panel provided by an embodiment of the present disclosure.

[0032] FIG18 is a schematic diagram showing a planar structure of a display panel provided in another embodiment of the present disclosure.

[0033] FIG19 is a schematic diagram showing a planar structure of a display panel provided in another embodiment of the present disclosure.

[0034] FIG20 is a schematic diagram showing a planar structure of a display panel provided in yet another embodiment of the present disclosure.

[0035] FIG21 is a schematic diagram showing a planar structure of a display panel provided in yet another embodiment of the present disclosure.

[0036] FIG22 is a schematic diagram showing a planar structure of a display panel provided in yet another embodiment of the present disclosure.

[0037] FIG23 is a schematic diagram showing a planar structure of a display panel provided in yet another embodiment of the present disclosure.

[0038] FIG24 is a cross-sectional view of a partial area of ​​a display panel provided by another embodiment of the present disclosure.

[0039] FIG25 is a cross-sectional view of a partial area of ​​a display panel provided in yet another embodiment of the present disclosure.

[0040] FIG26 is a schematic diagram showing a planar structure of a display panel provided in yet another embodiment of the present disclosure.

[0041] FIG27 is a cross-sectional view of a partial area of ​​a display panel provided in yet another embodiment of the present disclosure.

[0042] FIG28 is a cross-sectional view of a partial area of ​​a display panel provided in yet another embodiment of the present disclosure.

[0043] FIG29 is a cross-sectional view of a partial area of ​​a display panel provided in yet another embodiment of the present disclosure.

[0044] FIG30 is a cross-sectional view of a partial area of ​​a display panel provided in yet another embodiment of the present disclosure.

[0045] FIG31 is a cross-sectional view of a partial area of ​​a display panel provided in yet another embodiment of the present disclosure.

[0046] FIG32 is a cross-sectional view of a partial area of ​​a display panel provided in yet another embodiment of the present disclosure.

[0047] FIG33 is a cross-sectional view of a partial area of ​​a display panel provided in yet another embodiment of the present disclosure.

[0048] FIG34 is a cross-sectional view of a partial area of ​​a display panel provided in yet another embodiment of the present disclosure.

[0049] FIG35 is a cross-sectional view of the display panel shown in FIG23 along M1-N1.

[0050] FIG36 is a schematic diagram showing a planar structure of a touch electrode block having a grid pattern in the touch electrode layer of the display panel shown in FIG23 .

[0051] FIG37 is a schematic diagram showing a planar structure of a touch electrode layer in a display panel provided in yet another embodiment of the present disclosure, wherein the S3 region in FIG37 corresponds to the S1 region in FIG1 .

[0052] FIG38 is a cross-sectional view of the touch electrode layer shown in FIG37 along M2 - N2 .

[0053] FIG39 is a schematic diagram showing a planar structure of a touch electrode layer in another display panel provided in yet another embodiment of the present disclosure, wherein the S3 region in FIG35 corresponds to the S1 region in FIG1 .

[0054] FIG40 is a cross-sectional view of the touch electrode layer shown in FIG39 along M3-N3.

[0055] FIG41 is an enlarged view of the S1 region of the display panel shown in FIG1 under another design.

[0056] FIG42 is a schematic diagram showing a planar structure of a touch electrode block having a grid pattern in the touch electrode layer of the display panel shown in FIG41 .

[0057] FIG43 is a cross-sectional view of a partial area of ​​a display panel provided in yet another embodiment of the present disclosure.

[0058] FIG. 44 is a flow chart of a method for manufacturing the display panel shown in FIG. 43 .

[0059] FIG45 is a cross-sectional view of a display device according to an embodiment of the present disclosure.

[0060] FIG46 is a process diagram of a method for manufacturing a display panel according to an embodiment of the present disclosure as shown in FIG49

[0061] 50 to 53 are process diagrams showing a method for manufacturing a display panel according to another embodiment of the present disclosure.

[0062] FIG54 is a cross-sectional view of a partial area of ​​a display panel provided in yet another embodiment of the present disclosure. DETAILED DESCRIPTION

[0063] The following will be combined with the drawings in the embodiments of this specification to clearly and completely describe the technical solutions in the embodiments of this specification. Obviously, the embodiments described are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this specification.

[0064] In display products, some functional film layers in light-emitting devices are formed by evaporation. Each light-emitting device has multiple functional film layers, and some functional film layers (such as light-emitting layers) in light-emitting devices that emit different light are made of different materials. Therefore, when evaporating these functional film layers through a mask plate (such as a fine mask plate), multiple alignments are required. In order to ensure the alignment accuracy, sufficient space needs to be reserved between different light-emitting devices, which limits the arrangement density of light-emitting devices (which can be called sub-pixels), making it difficult to further improve the pixel density (PPI, Pixels Per Inch) of the display panel.

[0065] In the present disclosure, an isolation structure layer is provided at the gap between the light-emitting devices to separate the functional film layers of adjacent light-emitting devices. In this way, in the evaporation process of the functional film layer, it is only necessary to perform evaporation on the entire surface of the display panel without the use of a mask plate to prepare the functional film layer of each light-emitting device separately. This process does not need to consider the alignment accuracy problem during evaporation, so that the gap between the light-emitting devices can be designed to be smaller to increase the PPI.

[0066] However, the setting of the isolation structure layer will block the gaps between the light-emitting devices and prevent light from passing through, making it difficult to apply to scenarios such as under-screen fingerprint recognition and under-screen photography.

[0067] Embodiments of the present disclosure provide a display panel and display device that at least address the aforementioned technical issues. The display panel comprises: a substrate; an isolation structure layer located on the substrate, wherein the isolation structure layer includes a light-transmitting portion and a plurality of isolation openings; a display function layer including a light-emitting device located within the isolation openings; and a touch structure located on a side of the isolation structure layer away from the substrate.

[0068] In this design, the application of the isolation structure layer can make it possible to eliminate the need for a mask plate during the preparation process of the light-emitting device, so there is no need to consider the alignment accuracy of the preparation process, which is beneficial to reducing the gap size of the light-emitting device to increase the pixel PPI of the display panel; in addition, by providing a light-transmitting portion in the isolation structure layer, the area of ​​the display panel where the light-transmitting portion is provided can be transparent, so that the display panel can realize under-screen recognition functions such as fingerprint recognition, under-screen camera, etc.

[0069] The structure of a display panel and a display device according to at least one embodiment of the present disclosure is described in detail below with reference to the accompanying drawings. Furthermore, in these drawings, a spatial rectangular coordinate system is established with the substrate in the display panel as a reference to intuitively illustrate the positional relationships of the various components in the display panel. In this spatial rectangular coordinate system, the X-axis and Y-axis are parallel to the surface of the substrate, and the Z-axis is perpendicular to the surface of the substrate.

[0070] As shown in Figure 1, the planar area of ​​the display panel 10 can be divided into a first area 13, a second area 11, and a border area 12 surrounding the second area 11. Sub-pixels (the entity is a light-emitting device 200) such as R, G, and B can be arranged in the first area 13 and the second area 11. The second area 11 surrounds at least part of the first area 13, and the first area 13 is set to have a certain transmittance for under-screen recognition. In some embodiments of the present disclosure, part of the wiring in the border area 12 can be arranged in the second area 11, so that the border area 12 can be designed as a single-sided border.

[0071] In some embodiments of the present disclosure, as shown in Figure 1, in the display panel, only the first area 13 is set to be light-transmissive for under-screen identification, that is, the transmittance of the second area 11 is less than the transmittance of the first area 13, or the second area 11 is set to be opaque.

[0072] In other embodiments of the present disclosure, the first area can be designed to be the entire display area of ​​the display panel, that is, the above-mentioned second area 11 does not exist. In this way, the display panel can be applied to full-screen recognition, such as full-screen fingerprint recognition, or a portion can be used for under-screen camera and the rest can be used for under-screen fingerprint recognition, etc.

[0073] As shown in FIG1 , the first area 13 of the display panel 10 can be located in any area of ​​the display panel. For example, the first area 13 can be located in the middle of the display panel or in the border area 12 of the display panel, which includes the edge or corner area of ​​the display panel.

[0074] In some embodiments of the present disclosure, the transmittance of the first area 13 of the display panel under the test light reaches more than 0.6%. The transmittance of the first area 13 of the display panel in the visible light wavelength range reaches more than 0.6%, so that the display panel can realize functions such as photosensitivity. Alternatively, the transmittance of the first area 13 of the display panel under a light wave of 550nm reaches more than 0.6%, so that the display panel can realize functions such as photosensitivity. Preferably, the light transmittance of the first area 13 of the display panel in the visible light wavelength range is greater than 0.9%; alternatively, the transmittance of the first area 13 of the display panel under a light wave of 550nm reaches more than 0.9%.

[0075] In some embodiments of the present disclosure, the display panel further includes a light-sensing element disposed on the substrate. Furthermore, the orthographic projection of the light-sensing element on the substrate at least partially overlaps with the orthographic projection of the first area 13 on the substrate. It should be noted that partial overlap does not include complete overlap.

[0076] The transmittance of the first area 13 reaching 0.6% or more means that the test light passes through the first area 13 of the display panel and the detected transmittance is above 0.6%. Factors affecting the transmittance include all film layer structures of the display panel.

[0077] Below, taking the display panel shown in FIG. 1 to FIG. 5 as an example, the specific structure of a display panel under a design provided by the present disclosure is described in detail.

[0078] The physical structure of the display panel 10 may include a substrate 100, a display function layer 24 located on the substrate 100, and an isolation structure layer. The isolation structure layer includes an isolation structure 300. The display function layer 24 includes a plurality of light-emitting devices 200, each of which has a light-emitting unit 220. The isolation structure 300 encloses a plurality of isolation openings 301, each of which has at least one light-emitting device 200 disposed therein.

[0079] In at least one embodiment of the present disclosure, the display function layer 24 is located in the first area 13 and the second area 11. The isolation structure 300 isolates adjacent light-emitting units 220, and the portion of the isolation structure 300 located in the first area is provided with at least one first light-transmitting opening 302 to allow light to pass through the area of ​​the display panel where the first light-transmitting opening 302 is distributed for under-screen recognition.

[0080] In at least one embodiment of the present disclosure, the light-emitting device 200 can be classified into light-emitting devices that emit light of different colors. For example, as shown in Figures 2 to 5, the light-emitting device 200 is classified into at least a first light-emitting device R (emitting red light R), a second light-emitting device G (emitting red light G) and a third light-emitting device B (emitting red light B), and the wavelengths of the emitted light of the first light-emitting device R, the second light-emitting device G and the third light-emitting device B decrease in sequence.

[0081] In an embodiment of the present disclosure, the first light-transmitting opening 302 can be set to be multiple, so as to be dispersedly arranged in the gaps of the light-emitting device according to the shape, distribution method, etc. of the light-emitting device, or the first light-transmitting opening 302 can also be set to be one, so as to have a larger size, thereby increasing the transmittance of the first zone.

[0082] The following describes in detail the arrangement of the first light-transmitting openings 302 and the corresponding display panel structures under the above two designs through different embodiments.

[0083] In some embodiments of the present disclosure, as shown in Figures 1 to 5, a plurality of first light-transmitting openings 302 are provided, and in the first region 13, the first light-emitting device R is disposed adjacent to the first light-transmitting opening 302. The wavelength of light emitted by the first light-emitting device R (R) is the largest, and thus the first light-emitting device R generally has a higher luminous efficiency. In actual processes, by preferentially ensuring that the first light-transmitting openings 302 are disposed around the first light-emitting device R, the adverse effects of the design of the first light-transmitting openings 302 on the second light-emitting device G and / or the third light-emitting device B (reduced area) can be reduced or avoided, thereby allowing the display device to maintain a good display effect.

[0084] In some embodiments of the present disclosure, the ratio of the area of ​​the orthographic projection of the first light-transmitting opening 302 on the substrate 100 to the area of ​​the orthographic projection of the first region 11 on the substrate 100 is not less than 1%. Furthermore, the ratio of the area of ​​the orthographic projection of the first light-transmitting opening 302 on the substrate 100 to the area of ​​the orthographic projection of the first region 11 on the substrate 100 is not less than 6%. Preferably, the ratio of the area of ​​the orthographic projection of the first light-transmitting opening 302 on the substrate 100 to the area of ​​the orthographic projection of the first region 11 on the substrate 100 is not less than 10%. Further preferably, the ratio of the area of ​​the orthographic projection of the first light-transmitting opening 302 on the substrate 100 to the area of ​​the orthographic projection of the first region 11 on the substrate 100 is not less than 30%. Further preferably, the ratio of the area of ​​the orthographic projection of the first light-transmitting opening 302 on the substrate 100 to the area of ​​the orthographic projection of the first region 11 on the substrate 100 is not less than 50%.

[0085] In other embodiments of the present disclosure, the ratio of the area of ​​the orthographic projection of the first light-transmitting opening 302 on the substrate 100 to the area of ​​the orthographic projection of the isolation structure 300 on the substrate 100 is 1.50%-9.50%, such as 1.5%, 2%, 3%, 4%, 5% or 5.5%. Furthermore, the ratio of the area of ​​the orthographic projection of the first light-transmitting opening 302 on the substrate 100 to the area of ​​the orthographic projection of the first zone 11 on the substrate 100 is in a range of 6%-10%, such as 6.5%, 7%, 8% or 9%; further preferably, the ratio of the area of ​​the orthographic projection of the first light-transmitting opening 302 on the substrate 100 to the area of ​​the orthographic projection of the first zone 11 on the substrate 100 is in a range of 10%-30%, such as 11%, 12%, 13%, 18%, 20%, 21%, 23%, 25%, 28% or 29%; further preferably, the ratio of the area of ​​the orthographic projection of the first light-transmitting opening 302 on the substrate 100 to the area of ​​the orthographic projection of the first zone 11 on the substrate 100 is in a range of 30%-50%, such as 35%, 40%, 42% or 45%.

[0086] In some embodiments of the present disclosure, as shown in Figures 2 and 3, the first light-emitting devices R and the corresponding first light-transmitting openings 302 are arranged sequentially along the length of the first light-emitting devices R. This approach does not require narrowing the width of the first light-emitting devices R due to the arrangement of the first light-transmitting openings 302, thereby reducing the difficulty of arranging the first light-transmitting openings 302.

[0087] For example, the size of the first light emitting device R in the first zone 13 may be reduced to reserve space for the arrangement of the first light-transmitting opening 302 , that is, the length of the first light emitting device R in the first zone is smaller than that of the first light emitting device R in the second zone.

[0088] Providing a first light-transmitting opening on one side of the light-emitting device will affect the size (e.g., length) of the light-emitting device. Therefore, the first light-transmitting opening can be provided on one side of one or more of the first light-emitting device, the second light-emitting device, and the third light-emitting device. The following describes different embodiments of the above-mentioned different options.

[0089] In some embodiments of the present disclosure, as shown in Figures 1 to 5, in the first area 13, all of the first light-transmitting openings 302 are disposed adjacent to the first light-emitting device R. That is, the provision of the first light-transmitting openings 302 does not affect the light extraction efficiency of the second light-emitting device G and the third light-emitting device B. For example, in the first area 13, the second light-emitting device G and the third light-emitting device B have the same length, and the length of the second light-emitting device G is greater than the length of the first light-emitting device R. That is, in the first area 13, the provision of the first light-transmitting openings 302 only requires shortening the length of the first light-emitting device R.

[0090] In other embodiments of the present disclosure, as shown in Figures 6 and 7, in the first zone, all the first light-transmitting openings 302 are arranged adjacent to the first light-emitting device R and the second light-emitting device G, that is, the arrangement of the first light-transmitting openings 302 will not affect the light extraction efficiency of the third light-emitting device B.

[0091] For example, as shown in Figures 6 and 7, along the length direction of the first light-emitting device R, the first light-emitting device R and the adjacent first light-transmitting opening 302 are arranged in sequence, and along the length direction of the second light-emitting device G, the second light-emitting device G and the adjacent first light-transmitting opening 302 are arranged in sequence. For example, in the first zone, the length of the third light-emitting device B is greater than the lengths of the first light-emitting device R and the second light-emitting device G. That is, in the first zone 13, the provision of the first light-transmitting opening 302 requires shortening the lengths of the first light-emitting device R and the second light-emitting device G.

[0092] For example, in some embodiments, the area of ​​the first light-transmitting opening corresponding to the second light-emitting device is equal to the area of ​​the first light-transmitting opening corresponding to the first light-emitting device.

[0093] For example, in other embodiments, as shown in Figures 6 and 7, the area of ​​the first light-transmitting opening 302 corresponding to the second light-emitting device G is smaller than the area of ​​the first light-transmitting opening 302 corresponding to the first light-emitting device R. In this way, the impact of the setting of the first light-transmitting opening 302 on the luminous efficiency of the second light-emitting device G can be reduced.

[0094] For example, as shown in Figures 6 and 7, along the Y-axis direction (the length direction of the light-emitting device), the length of the first light-transmitting opening 302 corresponding to the second light-emitting device G is less than the length of the first light-transmitting opening 302 corresponding to the first light-emitting device R.

[0095] For example, as shown in Figures 8 and 9 , the first light-transmitting openings 302 corresponding to the first light-emitting device R and the second light-emitting device G, respectively, and adjacent to each other, are connected, thereby increasing the total area of ​​the first light-transmitting openings 302 and increasing the light transmittance of the first zone. Thus, when the first light-transmitting openings 302 corresponding to the first light-emitting device R and the second light-emitting device G have different lengths, the opening pattern formed by the first light-transmitting openings 302 corresponding to the first light-emitting device R and the second light-emitting device G and connected to each other presents a stepped pattern (two steps in Figure 8 ).

[0096] For the first light-transmitting opening 302 as shown in Figures 6 to 9, the sizes of the first light-emitting device R and the second light-emitting device G in the first zone can be reduced to reserve space for the arrangement of the first light-transmitting opening 302, that is, the length of the second light-emitting device G located in the first zone is less than the length of the second light-emitting device G located in the second zone.

[0097] In other embodiments of the present disclosure, as shown in FIG. 10 and FIG. 11 , in the first region, the first light emitting device R, the second light emitting device G, and the third light emitting device B are all disposed adjacent to the first light-transmitting opening 302 .

[0098] For example, as shown in Figures 10 and 11, along the length direction of the second light-emitting device G, the second light-emitting device G and the corresponding first light-transmitting opening 302 are arranged in sequence, and / or, along the length direction of the third light-emitting device B, the third light-emitting device B and the corresponding first light-transmitting opening 302 are arranged in sequence.

[0099] For example, further, the area of ​​the first light-transmitting opening 302 corresponding to the second light-emitting device G is smaller than the area of ​​the first light-transmitting opening 302 corresponding to the first light-emitting device R, and the area of ​​the first light-transmitting opening 302 corresponding to the third light-emitting device B is smaller than the area of ​​the first light-transmitting opening 302 corresponding to the second light-emitting device G, so that the length of the second light-emitting device G is greater than the length of the first light-emitting device R and less than the length of the third light-emitting device B. For example, as shown in Figures 10 and 11, along the Y-axis (the length direction of the light-emitting devices), the length of the first light-transmitting opening 302 corresponding to the second light-emitting device G is less than the length of the first light-transmitting opening 302 corresponding to the first light-emitting device R, and greater than the length of the first light-transmitting opening 302 corresponding to the third light-emitting device B. In this way, in the first zone, the shortened lengths of the first light-emitting device R, the second light-emitting device G, and the third light-emitting device B decrease in sequence, thereby preventing the luminous efficiency of some light-emitting devices with low luminous efficiency, such as the third light-emitting device B, from being too low, which could cause color shift in the display device.

[0100] For example, as shown in Figures 12 and 13 , the first light-transmitting openings 302 corresponding to and adjacent to the first light-emitting device R, the second light-emitting device G, and the third light-emitting device B are connected, thereby further increasing the total area of ​​the first light-transmitting openings 302 and further increasing the transmittance of the first zone. In this way, the opening pattern formed by the first light-transmitting openings 302 corresponding to and connected to the first light-emitting device R, the second light-emitting device G, and the third light-emitting device B presents a stepped opening pattern (three steps in Figure 12 ).

[0101] For the first light-transmitting opening 302 as shown in Figures 10 to 13, the sizes of the first light-emitting device R, the second light-emitting device G and the third light-emitting device B in the first zone can be simultaneously reduced to reserve space for the arrangement of the first light-transmitting opening 302, that is, the length of the second light-emitting device G located in the first zone is smaller than the length of the second light-emitting device G located in the second zone, and the length of the third light-emitting device B located in the first zone is smaller than the length of the third light-emitting device B located in the second zone.

[0102] In the embodiment of the present disclosure, when a plurality of first light-transmitting openings are provided, the arrangement of the first light-transmitting openings can be adjusted according to the arrangement of the light-emitting devices, which will be described below with reference to several specific examples.

[0103] In some embodiments of the present disclosure, referring again to Figures 2 and 7 to 13, the first light-emitting devices R, the second light-emitting devices G, and the third light-emitting devices B are arranged in multiple rows and columns, the row direction may be the direction of the X-axis, and the column direction may be the direction of the Y-axis. The first light-emitting devices R, the second light-emitting devices G, and the third light-emitting devices B are located in different columns, that is, the light-emitting devices in the same column have the same light output color, and each row is arranged with the first light-emitting devices R, the second light-emitting devices G, and the third light-emitting devices B. For example, in each row, adjacent first light-emitting devices R, second light-emitting devices G, and third light-emitting devices B constitute a pixel (which may be referred to as a pixel unit or pixel group, etc., and each light-emitting device may be referred to as a sub-pixel or sub-pixel). For example, further, the length direction of the first light-emitting devices R, the second light-emitting devices G, and the third light-emitting devices B is the same as the column direction.

[0104] In other embodiments of the present disclosure, as shown in FIG14 , the first light-emitting devices R, the second light-emitting devices G, and the third light-emitting devices B are arranged in multiple rows and columns. The first light-emitting devices R and the second light-emitting devices G are arranged in a portion of the columns, and the third light-emitting devices B are arranged in another portion of the columns. In the columns where the first light-emitting devices R are arranged, the first light-emitting devices R and the second light-emitting devices G are arranged alternately along the column direction, and the columns where the first light-emitting devices R and the second light-emitting devices G are arranged alternately with the columns where the third light-emitting devices B are arranged along the row direction. For example, three adjacent first light-emitting devices R, second light-emitting devices G, and third light-emitting devices B constitute a pixel (which can be called a pixel unit or pixel group, etc., and each light-emitting device can be called a sub-pixel or sub-pixel). This design can increase the design area of ​​the third light-emitting device B (for example, increase its length), thereby ensuring the light extraction efficiency of the third light-emitting device B. For example, further, the length direction of the first light-emitting devices R, the second light-emitting devices G, and the third light-emitting devices B is the same as the column direction. In this design, a first light-transmitting opening 302 can be arranged between the first light-emitting devices R and the second light-emitting devices G in the same column. In the design shown in FIG14 , the number of third light-emitting devices B in each column is approximately 1 / 2 of the number of light-emitting devices in adjacent columns. Therefore, in some designs, the design area of ​​the third light-emitting device B can be increased (for example, the length can be increased) to ensure the luminous efficiency of the third light-emitting device B. Alternatively, in other designs, the design area of ​​the third light-emitting device B can be kept unchanged so that there is a larger gap between adjacent third light-emitting devices B. In this way, a first light-transmitting opening can be set between adjacent third light-emitting devices B.

[0105] As shown in FIG. 2 to FIG. 14 , when there are multiple first light-transmitting openings 302 , the isolation openings 301 may be designed to correspond one-to-one with the light-emitting devices 200 , so that only one light-emitting device 200 is disposed in each isolation opening 301 .

[0106] When the first light-transmitting openings 302 are arranged in a grid shape, one light-emitting device 200 (as shown in FIG. 15 ) may be arranged in each first light-transmitting opening 302 (corresponding to the isolation opening 301 ), or a plurality of light-emitting devices 200 may be arranged.

[0107] For example, as shown in FIG17 , at least two light-emitting devices 200 are provided in each isolation opening 301, and the light-emitting devices 200 located in the same isolation opening 301 have the same light-emitting color. The difference in driving voltage of the light-emitting devices 200 with the same light-emitting color is small, and even if they are arranged in the same isolation opening 301, the degree of current crosstalk will be relatively low. In this way, by concentrating the light-emitting devices 200 with the same light-emitting color in one isolation opening 301, the distance between the light-emitting devices 200 located in different isolation openings 301 and adjacent to each other can be increased without reducing the design area and arrangement density (PPI) of the light-emitting devices 200, thereby reducing the difficulty of preparing the first light-transmitting opening 302 in the isolation structure 300, so that the first light-transmitting opening 302 can be designed as a grid.

[0108] Below, taking the display panel shown in FIG. 18 to FIG. 22 as an example, the specific structure of the display panel under another design provided by the present disclosure is described in detail.

[0109] In some embodiments of the present disclosure, as shown in FIG. 18 , the isolation structure 300 includes a plurality of isolation segments 26 whose extension directions intersect, and the first light-transmitting opening 302 is provided through the isolation segments 26 along the thickness direction of the substrate 100 .

[0110] The isolation structure 300 includes a plurality of isolation segments 26, at least some of which extend in different directions. Each isolation segment 26 may be a straight segment, or each isolation segment 26 may be a curved segment 61. Alternatively, some isolation segments 26 may be straight segments, and some may be curved segments 61. When an isolation segment 26 is a curved or other non-linear structure, the extension direction of the isolation segment 26 is the direction of the line connecting its head and tail ends.

[0111] In other embodiments of the present disclosure, as shown in FIG18 , the isolation structure 300 includes a plurality of intersecting isolation segments 26 , which can be divided into a first isolation portion and a second isolation portion, with the first light-transmitting opening 302 disposed at the intersection of the first isolation portion and the second isolation portion. Alternatively, in other embodiments of the present disclosure, as shown in FIG19 , the first light-transmitting opening 302 is disposed in the first isolation portion and extends along the length of the first isolation portion.

[0112] By disposing the first light-transmitting opening 302 at the intersection of the first isolation portion and the second isolation portion, the distance between the center of the first light-transmitting opening 302 and the center of the adjacent isolation opening 301 is increased, thereby reducing the impact of the first light-transmitting opening 302 on the isolation opening 301. Of course, in other embodiments, the first light-transmitting opening 302 may also be disposed at the isolation segment 26, and the present disclosure is not limited thereto.

[0113] Optionally, the orthographic projection of the first light-transmitting opening 302 on the substrate 100 may be a circular structure, a polygon, a rectangle, or an irregular shape, which is not limited in the present application.

[0114] In some embodiments, as shown in FIG. 20 , the isolation structure 300 includes a plurality of isolation units 31 . The isolation units 31 enclose an isolation opening 301 , and at least some of the connected isolation units 31 are spaced apart to form a first light-transmitting opening 302 .

[0115] The isolation structure 300 includes a plurality of isolation units 31 spaced apart. The structures of the different isolation units 31 may be the same or different. The isolation units 31 enclose an isolation opening 301. A single isolation unit 31 may be provided with only one isolation opening 301, or a single isolation unit 31 may be provided with multiple isolation openings 301 simultaneously. This is not limited in the present embodiment. In the present embodiment, by providing the isolation structure 300 with a plurality of spaced apart isolation units 31, a first light-transmitting opening 302 is formed between adjacent isolation units 31. This helps to further increase the size of the first light-transmitting opening 302 in the display panel, thereby improving the overall transmittance of the display panel and having strong practicality.

[0116] In other embodiments of the present disclosure, as shown in Figures 15 and 16, the shape of the positive projection of the first light-transmitting opening 302 on the substrate 100 is a grid. In this way, the total area of ​​the first light-transmitting opening 302 in the first zone of the isolation structure 300 can be increased, thereby improving the transmittance of the first zone.

[0117] As shown in FIG. 15 , in the first region, the isolation structure 300 is divided into isolation units 31 spaced apart from each other by the grid-like first light-transmitting openings 302 . The isolation units 31 define isolation openings.

[0118] In an embodiment of the present disclosure, a transparent electrode can be provided to connect the isolation units 31. For example, as shown in FIG16 , the display panel can further include a transparent conductive layer 350. The transparent conductive layer 350 is located between the isolation structure 300 and the substrate 100 and is connected to the isolation structure 300. The conductive layer 350 has a third opening 501. The third opening 501 corresponds to the isolation opening 301, and the orthographic projection of the isolation opening 301 on the substrate 100 is located within the orthographic projection of the corresponding third opening 501 on the substrate 100. The orthographic projection of the first light-transmitting opening 302 on the substrate 100 is located within the orthographic projection of the conductive layer on the substrate 100. In this way, the isolation units 31 can be connected through the transparent conductive layer 350, so that the first electrode 210 can still be electrically connected to the conductive layer 350 through the isolation structure 300 to form a common electrode.

[0119] In other embodiments of the present disclosure, as shown in FIG54 , the display panel 10 further includes a light-emitting unit 220 and a second electrode 230 stacked in sequence, located on the side of the substrate 100 adjacent to the isolation structure 300 and disposed within the first light-transmitting opening 302. In some embodiments, the display panel 10 further includes a thin film formed of an organic material, located on the side of the second electrode 230 facing away from the display function layer 24; alternatively, the display panel 10 further includes multiple layers of thin films, located on the side of the second electrode 230 facing away from the display function layer 24, having different refractive indices.

[0120] At the same time, the embodiments of the present disclosure can meet the stretching requirements of the display panel. Specifically, because the isolation units 31 are spaced apart from each other, when the display panel needs to be stretched, the relative distance between different isolation units 31 can be increased under the influence of external forces and other factors. However, the light-emitting devices 200 are only arranged corresponding to the isolation openings 301 of the isolation units 31, and there are no light-emitting devices 200 between adjacent isolation units 31. Therefore, when the position of the isolation unit 31 changes, the light-emitting device 200 can move with the isolation unit 31, and the distance between different light-emitting devices 200 located in different isolation units 31 can be increased, thereby achieving adjustment of the relative position of different light-emitting devices 200 to meet the stretching requirements.

[0121] In some embodiments, the isolation unit 31 is provided with a plurality of isolation openings 301 . That is, a plurality of light-emitting devices 200 may be provided corresponding to the same isolation unit 31 . Optionally, at least some of the light-emitting devices 200 of different colors are located within the plurality of isolation openings 301 of the same isolation unit 31 .

[0122] In some embodiments, at least some of the light emitting devices 200 are arranged side by side in the first direction X, and at least some of the isolation units 31 are arranged side by side in the first direction X.

[0123] In order to improve the display effect of the display panel, the light-emitting devices 200 are usually arranged according to a specific rule to improve the display uniformity of the display panel. Furthermore, at least some of the light-emitting devices 200 are arranged side by side in the first direction X. Specifically, the phrase "at least some of the light-emitting devices 200 are arranged side by side in the first direction X" means that at least some of the light-emitting devices 200 are arranged at intervals from each other, and the center lines of some of the light-emitting devices 200 are parallel to the first direction X. Among them, light-emitting devices 200 of the same color can be arranged side by side in the first direction X, or light-emitting devices 200 of different colors can be arranged side by side in the first direction X, and the embodiments of the present disclosure are not limited to this.

[0124] As can be seen from the foregoing, the presence of the isolation structure 300 allows the formation of the light-emitting device 200 during the fabrication process of the light-emitting device 200 to be performed without the need for a fine metal mask. Instead, the light-emitting material is deposited on the entire surface and then partially removed by etching. Therefore, the presence of the isolation structure 300 significantly impacts the fabrication of the light-emitting device 200 and also affects the relative positioning of the light-emitting device 200.

[0125] On this basis, the embodiment of the present disclosure configures the isolation structure 300 so that at least some of the isolation units 31 are arranged side by side in the first direction X. This allows the arrangement of the isolation units 31 to follow the arrangement of at least some of the light-emitting devices 200, thereby making the layout of the isolation units 31 more regular. This helps control the arrangement of at least some of the light-emitting devices 200 in the first direction X during the preparation of the light-emitting devices 200, thereby improving the display uniformity of the display panel. Furthermore, the arrangement of multiple isolation units 31 side by side in the first direction X ensures that the multiple isolation units 31 can be spaced apart to form first light-transmitting openings 302 in the first direction X, thereby improving the light-transmitting display effect. It can also meet the stretching requirements of the display panel in the first direction X, thereby achieving a stretching effect.

[0126] In addition, in the embodiment of the present disclosure, since the multiple isolation units 31 are arranged at intervals from each other, the isolation units 31 also have the function of isolating water and oxygen from invading the light-emitting device 200 from the side, thereby being able to perform a packaging and protection function for the light-emitting device 200 together with the packaging layer, thereby improving the packaging effect of the light-emitting device 200.

[0127] All isolation units 31 may be arranged side by side in the first direction X, or only some isolation units 31 may be arranged side by side in the first direction X, and other isolation units 31 may be arranged side by side along other directions. This embodiment of the present disclosure is not limited to this.

[0128] In some embodiments, the display function layer 24 includes a plurality of repeating units D, each repeating unit D includes a plurality of light-emitting devices 200 , and at least some of the light-emitting devices 200 in the same repeating unit D are arranged side by side in the first direction X.

[0129] Multiple repeating units D are shifted and repeated to form a pixel arrangement structure of the display panel. The number, type, and relative position of the light-emitting devices 200 in each repeating unit D are the same. In the same repeating unit D, light-emitting devices 200 of the same color can be arranged side by side in the first direction X, or light-emitting devices 200 of different colors can be arranged side by side in the first direction X.

[0130] The present embodiment does not limit the composition and arrangement of the light-emitting devices 200 in the repeating unit D. The multiple light-emitting devices 200 located in the virtual frame in Figure 2 refer to multiple light-emitting devices 200 located in the same repeating unit D, but Figure 20 does not constitute a limitation on the composition and arrangement of the light-emitting devices 200 in the repeating unit D. The specific structure of the repeating unit D needs to be determined according to actual usage needs, and the present embodiment does not limit this.

[0131] Furthermore, since at least part of the light-emitting devices 200 and at least part of the isolation units 31 in the same repeating unit D are arranged along the first direction X, when designing the isolation structure 300 and the light-emitting device 200, different light-emitting devices 200 in the same repeating unit D can be arranged in different isolation units 31, and at least part of the adjacent isolation units 31 can be arranged side by side along the first direction X, so that when the light-emitting device 200 is subsequently prepared, it is ensured that at least part of the light-emitting devices 200 in the same repeating unit D are arranged side by side in the first direction X.

[0132] Of course, in some other embodiments, the display function layer 24 includes a repeating unit D, the repeating unit D includes a plurality of light-emitting devices 200 , and at least part of the repeating units D are arranged side by side in the first direction X.

[0133] In this way, when designing the isolation structure 300 and the light-emitting device 200, different light-emitting devices 200 in different repeating units D can be arranged in different isolation units 31, and at least part of the adjacent isolation units 31 can be arranged side by side along the first direction X, so that when the light-emitting device 200 is subsequently prepared, it can be ensured that at least part of the repeating units D formed can be arranged side by side in the first direction X.

[0134] Further optionally, the light-emitting devices 200 in the same repeating unit D are located in the multiple isolation openings 301 in the same isolation unit 31 .

[0135] Because a single isolation unit 31 is a continuous structure and is difficult to deform, the multiple light-emitting devices 200 located within the same isolation unit 31 can maintain a fixed relative position during the display panel stretching process. Based on this, the embodiment of the present disclosure positions the light-emitting devices 200 within the same repeating unit D within multiple isolation openings 301 within the same isolation unit 31. This ensures that the relative positional relationship between the light-emitting devices 200 within the repeating unit D remains fixed during the display panel stretching process, thereby maintaining the luminous effect of each repeating unit D, reducing the risk of color shift in a single repeating unit D, and improving the luminous reliability of the repeating unit D.

[0136] 21 , some of the isolation units 31 are arranged side by side in the second direction Y, and the first direction X intersects the second direction Y. For example, the first direction X is perpendicular to the second direction Y.

[0137] In the disclosed embodiment, different isolation units 31 can be arranged side by side along the first direction X and the second direction Y. This allows the display panel to have first light-transmitting openings 302 at different locations in both the first direction X and the second direction Y, thereby helping to improve the overall transmittance of the display panel and further meet the light-transmitting display or light-sensing requirements of the display panel. Furthermore, this design can accommodate stretching deformation of the display panel in at least the first direction X and the second direction Y, thereby further increasing the size of the display panel and providing greater stretchability.

[0138] In addition to the first direction X and the second direction Y, some isolation units 31 can also be arranged side by side along other directions, depending on factors such as the stretching requirements of the display panel and the arrangement requirements of the light-emitting devices 200 in the display function layer 24. The embodiment of the present disclosure is not limited to this.

[0139] In some embodiments, the display function layer 24 includes a plurality of repeating units D, each repeating unit D includes a plurality of light-emitting devices 200 , and at least some of the light-emitting devices 200 in the same repeating unit D are arranged side by side in the second direction Y.

[0140] Since at least part of the light-emitting devices 200 and part of the isolation units 31 in the same repeating unit D are arranged along the second direction Y, when designing the isolation structure 300 and the light-emitting device 200, different light-emitting devices 200 in the same repeating unit D can be divided into different isolation units 31, and at least part of the adjacent isolation units 31 can be arranged side by side along the second direction Y, so that when the light-emitting device 200 is subsequently prepared, it can be ensured that at least part of the light-emitting devices 200 in the same repeating unit D are arranged side by side in the second direction Y.

[0141] In some embodiments, the display function layer 24 includes a plurality of repeating units D, each of the repeating units D includes a plurality of light-emitting devices 200 , and at least some of the repeating units D are arranged side by side in the second direction Y.

[0142] In this way, when designing the isolation structure 300 and the light-emitting device 200, different light-emitting devices 200 in different repeating units D can be arranged in different isolation units 31, and at least part of the adjacent isolation units 31 can be arranged side by side along the second direction Y, so that when the light-emitting device 200 is subsequently prepared, it can be ensured that at least part of the repeating units D formed can be arranged side by side in the second direction Y.

[0143] 22 , any different light emitting devices 200 are disposed in different isolation units 31, that is, each isolation unit 31 is provided with only one isolation opening 301. For example, the orthographic projection of the isolation unit 31 on the substrate 100 is a ring-shaped structure.

[0144] This design ensures that a first light-transmitting opening 302 exists between any adjacent light-emitting devices 200, thereby further increasing the size of the first light-transmitting opening 302 within the display panel, thereby further improving the light-transmitting display effect or the light-sensing effect of the display panel. Furthermore, during the display panel stretching process, the relative distance between any light-emitting devices 200 can be increased, thereby further increasing the overall size of the stretched display panel, improving the deformation of the display panel, and providing greater flexibility.

[0145] In at least one embodiment of the present disclosure, the shape of the isolation opening 301 (equivalent to the shape of the pixel) can be designed to increase the gap between the isolation openings without reducing the light-emitting area of ​​the pixel (the effective light-emitting area of ​​the light-emitting unit) and the pixel density PPI, so as to facilitate the setting of a larger area of ​​light-transmitting opening, as follows.

[0146] In at least one embodiment of the present disclosure, as shown in FIG23 , at least two opposing ends of the isolation opening 301 are arc-shaped. This design allows for a larger size between adjacent isolation openings 301 while maintaining the same design area of ​​the isolation opening 301 (the light-emitting area of ​​the light-emitting unit) and the pixel density of the display panel. This facilitates the design of a larger first light-transmitting opening 302, thereby further improving the light transmittance of the first region 13.

[0147] In at least one embodiment of the present disclosure, the orthographic projections of the isolation opening 301 and the first light-transmitting opening 302 on the substrate conform to the grid outline of the orthographic projection of the grid pattern on the substrate. In some embodiments, the first light-transmitting opening 302 is circular; alternatively, the first light-transmitting opening 302 is rectangular; alternatively, the edges of the first light-transmitting opening 302 conform to the edges of the adjacent isolation opening 301. In some embodiments, at least two opposing ends of the first light-transmitting opening 302 are arc-shaped; and at least two opposing ends of the isolation opening 301 are arc-shaped.

[0148] In at least one embodiment of the present disclosure, as shown in FIG. 24 , the display panel further includes a first transparent filling portion T disposed in at least a portion of the first light-transmitting opening 302 .

[0149] The first transparent filling portion T is formed from a relatively high-transmittance material. The first transparent filling portion T is disposed within at least a portion of the first light-transmitting opening 302. The presence of the first transparent filling portion T does not significantly affect the transmittance at the first light-transmitting opening 302, thereby contributing to a transparent display effect. Furthermore, the first transparent filling portion T provides support for the upper film layers, thereby reducing the difficulty of display panel production and improving production yield.

[0150] It should be noted that the material composition of the first transparent filling portion T is limited by the manufacturing embodiment of the present application. Optionally, the first transparent filling portion T may also include an elastic material, which can meet the stretching requirements of the display panel. Optionally, the first transparent filling portion T may include an organic material.

[0151] In at least one embodiment of the present disclosure, as shown in Figures 1 to 5, the light-emitting device 200 includes a substrate 100 including a first electrode layer 2100 and a second electrode layer 2300 on the substrate 100, and the light-emitting unit 220 is located between the first electrode layer 2100 and the second electrode layer 2300. The light-emitting unit 220 may include a first common layer 221, a light-emitting layer 222, and a second common layer 223, which are sequentially stacked on the first electrode layer 2100. The first common layer 221 may include a hole injection layer, a hole transport layer, an electron blocking layer, etc., and the second common layer 223 may include an electron injection layer, an electron transport layer, a hole blocking layer, etc. The isolation structure 300 needs to be provided so that the first common layer 221 (the main film layer causing current crosstalk) of each light-emitting device 200 is electrically disconnected from each other.

[0152] The first electrode layer 2100 is provided with a first electrode 210, and the second electrode layer 2300 is provided with a second electrode 230. There are multiple second electrodes 230, and the multiple second electrodes 230 are arranged corresponding to the light-emitting units 220. The first electrode 210 and the second electrode 230 jointly drive and control whether the light-emitting units 220 emit light. Exemplarily, the first electrode 210 is a cathode and the second electrode 230 is an anode. Alternatively, the first electrode 210 is an anode and the second electrode 230 is a cathode.

[0153] In some embodiments, the second electrode 230, such as the cathode, can be a transparent electrode. Furthermore, the transparent electrode material includes a transparent metal oxide, such as at least one of indium tin oxide (ITO), indium zinc oxide (IZO), aluminum zinc oxide (AZO), FTO, silver-doped indium tin oxide, and silver-doped indium zinc oxide. Alternatively, a three-layer structure can be employed, wherein the first and third layers can be made of transparent metal oxides, such as indium tin oxide (ITO), indium zinc oxide (IZO), or aluminum zinc oxide (AZO), and the second layer in between can be made of a metal, such as silver or copper. The first electrode 210 can be a reflective electrode or a transparent electrode, and the reflective electrode material can be silver, copper, or a magnesium-silver alloy. The light-emitting layer 222 can be an organic light-emitting layer, wherein the organic light-emitting layer can comprise a single layer, such as a layer of organic light-emitting material, or a multilayer structure, such as a hole injection layer, a hole transport layer, an organic light-emitting material layer, an electron transport layer, and an electron injection layer, arranged sequentially from the second electrode 230 to the first electrode 210. The specific structure of the organic light-emitting layer depends on the actual application and is not specifically limited here. Optionally, the isolation structure 300 may insulate the functional film layers of the light-emitting units 220 from each other, so as to reduce lateral crosstalk between the light-emitting units 220 .

[0154] In at least one embodiment of the present disclosure, at least a portion of the isolation structure 300 is a conductive structure 32 (e.g., the first isolation layer 310 described below). The conductive structure 32 is electrically connected to the second electrode 230 of the adjacent light-emitting device 200 and is spaced apart from the first electrode 210. In this way, the second electrodes 230 of the respective light-emitting devices 200 can be electrically connected via the conductive structure 32 of the isolation structure 300 to form a common electrode, thereby still being applicable to the current display panel driving method for the second electrodes 230 (e.g., driving via one or a small number of common electrode lines).

[0155] In an embodiment of the present disclosure, the isolation structure 300 can be designed to be wide at the top and narrow at the bottom, so that the first common layer 221 (the main film layer causing current crosstalk) is disconnected by the isolation structure 300 during evaporation. For example, as shown in Figures 4 and 5, the orthographic projection of the end of the conductive structure 32 of the isolation structure 300 facing the substrate 100 on the substrate 100 is located within the orthographic projection of the end of the conductive structure 32 facing away from the substrate 100 on the substrate 100.

[0156] In the embodiments of the present disclosure, while ensuring that the isolation structure layer is wide at the top and narrow at the bottom, the specific shape of the isolation structure layer is not further restricted. Several configurations of the isolation structure layer are briefly described below through embodiments.

[0157] For example, in some embodiments of the present disclosure, as shown in Figures 4 and 5, the isolation structure 300 includes a stacked first isolation layer 310 and a second isolation layer 320. The first isolation layer 310 is located between the substrate 100 and the second isolation layer 320. The orthographic projection of the first isolation layer 310 on the substrate 100 is located within the orthographic projection of the second isolation layer 320 on the substrate 100. The first isolation layer 310 is a conductive structure 32. For example, further, along a direction perpendicular to the substrate 100, the cross-sectional shape of the first isolation layer 310 is a regular trapezoid, and the second isolation layer 320 is located at the top edge of the first isolation layer 310. In this case, the evaporated material of the second electrode 230 can be easily deposited on the sidewalls of the first isolation layer 310, thereby improving the overlap yield of the second electrode 230 and the first isolation layer 310.

[0158] In some embodiments of the present disclosure, the first isolation layer 310 includes a first end portion proximal to the second isolation layer 320 and a second end portion distal to the second isolation layer 320, and the orthographic projection of the first end portion on the substrate 100 is located within the orthographic projection of the second end portion on the substrate 100. The orthographic projection of the first end portion on the substrate 100 being located within the orthographic projection of the second end portion on the substrate 100 means that the area of ​​the orthographic projection of the first end portion on the substrate 100 is smaller than the orthographic projection of the second end portion on the substrate 100, and the orthographic projection of the second end portion on the substrate 100 covers the orthographic projection of the first end portion on the substrate 100.

[0159] In other embodiments of the present disclosure, the isolation structure 300 is an integrated structure. For example, the cross-section of the isolation structure 300, perpendicular to the substrate, is an inverted trapezoidal shape, with the top edge of the inverted trapezoid facing the substrate. With this design, the sidewalls of the isolation structure 300 are inscribed, thereby enhancing the isolation effect of the isolation structure 300.

[0160] For example, in the embodiments of the present disclosure, the conductive structure 32 may be a metal conductive structure. Metal materials have high electrical conductivity, which can reduce the voltage drop when driving the first electrode. Accordingly, metal materials can only be light-transmissive when they are extremely thin, and the isolation structure 300 requires a certain thickness to isolate the light-emitting units. Therefore, the conductive structure 32 in the isolation structure 300 (such as the first isolation layer 310 described below) is almost opaque. Therefore, only by providing the first light-transmissive opening 302 can the isolation structure 300 be made light-transmissive.

[0161] In some embodiments of the present disclosure, the material of the first isolation layer 310 includes a transparent metal oxide; wherein the transparent metal oxide is at least one of indium tin oxide and indium zinc oxide.

[0162] In other embodiments of the present disclosure, the isolation structure 300 further includes a third isolation layer 330. The third isolation layer 330 is disposed on a side of the first isolation layer 310 that is adjacent to the substrate 100. The orthographic projection of the third isolation layer 330 on the substrate 100 covers the orthographic projection of the first isolation layer 310 on the substrate 100. Preferably, the third isolation layer 330 includes a conductive structure 32. Specifically, the conductive structure 32 is located between the first isolation layer 310 and the substrate 100.

[0163] In at least one embodiment of the present disclosure, as shown in Figures 4 and 5, the display function layer 24 may further include a pixel defining layer 400, which is located between the isolation structure 300 and the substrate 100 and includes a plurality of fourth openings 201 for defining the light-emitting device 200. The fourth openings 201 correspond to the isolation openings 301 to expose the first electrode 210. In this way, by providing the pixel defining layer 400, the conductive portion of the isolation structure 300 and the first electrode 210 can be spaced apart, so that the first electrode 210 can have a larger design size to increase the area of ​​the main light-emitting region of the light-emitting device 200 (equivalent to increasing the aperture ratio). It should be noted that the area where the fourth openings 201 are located can represent the main light-emitting region of the light-emitting device.

[0164] For example, in some embodiments of the present disclosure, the orthographic projection of the isolation structure 300 on the substrate 100 coincides with the orthographic projection of the pixel defining layer 400 on the substrate 100, that is, the fourth opening 201 is opposite to the isolation opening 301 and has the same area, so that the isolation structure 300 completely covers the gap of the light-emitting device.

[0165] For example, in other embodiments of the present disclosure, the orthographic projection of the isolation structure 300 on the substrate 100 is located within the orthographic projection of the pixel defining layer 400 on the substrate 100, that is, the area of ​​the fourth opening 201 is smaller than the area of ​​the isolation opening 301, thereby increasing the light emission angle of the light-emitting device to increase the viewing angle of the display image of the display panel.

[0166] In some embodiments of the present disclosure, in addition to the fourth opening 201, as shown in Figure 5, the pixel defining layer 400 is further provided with a second through hole 202. The second through hole 202 is spaced apart from the fourth opening 201, and the orthographic projection of the second through hole 202 on the substrate 100 overlaps with the orthographic projection of the first light-transmitting opening 302 on the substrate 100. The orthographic projection of the first light-transmitting opening 302 on the substrate 100 is located within the orthographic projection of the second through hole 202 on the substrate 100. This design can further improve the transmittance of the display panel at the first light-transmitting opening 302, thereby improving the transparent display effect. Further optionally, at least a portion of the structure of the first transparent filling portion T can also be provided in the second through hole 202.

[0167] In some embodiments, the first isolation layer 310 in the isolation structure 300 is at least partially located in the second through hole 202 and covers at least a portion of the sidewall of the pixel defining layer 400 .

[0168] In the embodiment of the present disclosure, at least a portion of the first isolation layer 310 can extend into the second through hole 202 and can cover at least a portion of the side wall of the pixel defining layer 400. This design enables the first isolation layer 310 to protect the side wall of the pixel defining layer 400 facing the second through hole 202, thereby enhancing the structural reliability of the display panel.

[0169] In at least one embodiment of the present disclosure, as shown in Figures 20 to 22, the display panel further includes a second trace arranged on one side of the substrate 100, and the orthographic projection of the second trace on the substrate 100 at least partially overlaps with the orthographic projection of the first light-transmitting opening 302 on the substrate 100.

[0170] Specifically, the second trace includes a first signal line 60 disposed on one side of the substrate 100 . The first signal line 60 includes a curved segment 61 . The orthographic projection of the curved segment 61 on the substrate 100 at least partially overlaps with the orthographic projection of the first light-transmitting opening 302 on the substrate 100 .

[0171] The first signal line 60 and the isolation structure 300 are located on the same side of the substrate 100. The first signal line 60 can be located on the side of the isolation structure 300 facing the substrate 100, or the first signal line 60 can be arranged on the same layer as part of the isolation structure 300. This embodiment of the present application is not limited to this. The embodiment of the present application also does not limit the type of the first signal line 60 or the overall extension direction. Optionally, the first signal line 60 can be a data line for transmitting data signals; or the first signal line 60 can be a power line for transmitting a power signal to the first electrode 210 or the second electrode 230.

[0172] As can be seen from the foregoing, because the isolation units 31 are spaced apart from each other, when the display panel is stretched, the distance between adjacent isolation units 31 gradually increases, and the size of the entire display panel gradually increases. Based on this, the embodiment of the present application provides a curved segment 61 in the first signal line 60. Compared to a straight line structure, the curved segment 61 can have a greater elongation under the influence of external forces and other factors, thereby meeting the stretching requirements of the display panel.

[0173] Furthermore, the orthographic projection of the curved segment 61 on the substrate 100 at least partially overlaps with the orthographic projection of the first light-transmitting opening 302 on the substrate 100, that is, the orthographic projection of the curved segment 61 on the substrate 100 is located between the orthographic projections of adjacent isolation units 31 on the substrate 100. This design allows the curved segment 61 to deform and gradually straighten as the isolation units 31 move, while the distance between adjacent isolation units 31 gradually increases. This allows the curved segment 61 to meet the stretching requirements of the display panel, thereby reducing the risk of the first signal line 60 being broken due to display panel stretching and improving the reliability of signal transmission within the display panel.

[0174] The embodiment of the present application does not limit the specific shape and size of the curved segment 61. For example, the orthographic projection of the curved segment 61 on the substrate 100 can be "S"-shaped. In the embodiment of the present application, the first signal line 60 is electrically connected to the first isolation layer 310, so that the specific signal in the first signal line 60 can be transmitted with the help of the first isolation layer 310. The embodiment of the present application does not limit the connection method between the first isolation layer 310 and the first signal line 60. For example, the first signal line 60 is located on the side of the first isolation layer 310 facing the substrate 100, and the first signal line 60 and the first isolation layer 310 are electrically connected to each other through vias.

[0175] In some embodiments, the first signal line 60 is disposed on the same layer as the first isolation layer 310 .

[0176] As can be seen from the foregoing, adjacent isolation units 31 are spaced apart from each other, and portions of the film layer, such as the light-emitting unit 220, are not disposed between adjacent isolation units 31. Based on this, a portion of a supporting film layer can be filled between adjacent isolation units 31, and the first signal line 60 can then be disposed on this supporting film layer. This allows the first signal line 60 to be disposed on the same layer as the first isolation layer 310 and electrically connected thereto. This reduces the space occupied by the first signal line 60 in the underlying array layer, thus meeting the wiring requirements of the display panel.

[0177] In some embodiments, the first signal line 60 includes a plurality of conductive segments arranged at intervals, and the conductive segments are electrically connected to the first isolation layer 310 .

[0178] In the embodiment of the present application, the first signal line 60 can be provided in the same layer as the first isolation layer 310 and electrically connected thereto. Therefore, the first signal line 60 can achieve signal transmission via the first isolation layer 310. Furthermore, the first signal line 60 can include a plurality of conductive segments spaced apart, and adjacent conductive segments can achieve signal transmission between each other via the first isolation layer 310. Furthermore, the conductive segments can include curved segments 61 to meet the stretching requirements of the display panel.

[0179] Below, taking the display panel shown in FIG. 25 to FIG. 27 as an example, the specific structure of the display panel under another design provided by the present disclosure is described in detail.

[0180] In at least one embodiment of the present disclosure, as shown in Figures 25 and 26, the display panel 10 includes: a substrate 100; the substrate 100 is provided with a second light-transmitting opening 110; an isolation structure 300, located on one side of the substrate 100, the isolation structure 300 encloses an isolation opening 301 and a first light-transmitting opening 302, the second light-transmitting opening 110 is connected to the first light-transmitting opening 302, the second light-transmitting opening 110 is projected on the substrate 100 within the projection of the first light-transmitting opening 302 on the substrate 100; a display function layer 24, located on one side of the substrate 100, the display function layer 24 includes a light-emitting unit 220 located in the isolation opening 301.

[0181] In some embodiments, the shape of the first light-transmitting opening 302 on the substrate 100 includes a circle or a square, so that the shape of the first light-transmitting opening 302 is relatively regular, making the mask plate structure used for the evaporation isolation structure 300 simple, facilitating the preparation of the mask plate, and reducing development difficulty.

[0182] In some embodiments, there are multiple second light-transmitting openings 110 , and the display panel 10 is provided with multiple second light-transmitting openings 110 to improve the overall transmittance of the display panel 10 , thereby improving the performance of the display panel 10 .

[0183] Please refer to FIG. 27 , which is a partial cross-sectional view of a display panel in another embodiment.

[0184] In some embodiments, as shown in Figure 27, the substrate 100 also includes a substrate 1000 and an array layer 2000, the array layer 2000 is located on the side of the substrate 1000 close to the display function layer 24, and the second light-transmitting opening 110 includes a first through hole 111 that passes through the array layer 2000, which can improve the transmittance of the display panel 10 at the second light-transmitting opening 110.

[0185] In some embodiments, the orthographic projection of the first through hole 111 on the substrate 100 is within the orthographic projection of the first light-transmitting opening 302 on the substrate 100, and the first through hole 111 is completely connected with the first light-transmitting opening 302, thereby increasing the overlapping area of ​​the orthographic projection of the first through hole 111 on the substrate 100 and the orthographic projection of the first light-transmitting opening 302 on the substrate 100, that is, increasing the area of ​​the position with higher transmittance of the display panel 10, thereby improving the overall transmittance of the display panel 10.

[0186] In some embodiments of the present disclosure, the array layer 2000 includes a plurality of traces, and the orthographic projections of the plurality of traces on the substrate 1000 are misaligned (non-overlapping) or partially overlap with the orthographic projection of the first light-transmitting opening 302 on the substrate 1000. Partial overlap means that the orthographic projections of the plurality of traces on the substrate 1000 and the orthographic projection of the first light-transmitting opening 302 on the substrate 1000 do not completely overlap, and does not include a situation where the orthographic projections of the plurality of traces on the substrate 1000 and the orthographic projection of the first light-transmitting opening 302 on the substrate 1000 completely overlap, and does not include a situation where the orthographic projections of the plurality of traces on the substrate 1000 completely cover the orthographic projection of the first light-transmitting opening 302 on the substrate 1000.

[0187] Furthermore, in some embodiments, the array layer 2000 includes a driving transistor T, the source of which receives a data driving signal, and the drain of which is electrically connected to the second electrode 230. After the gate of the driving transistor T receives a gate scan signal, the source and drain of the driving transistor T are turned on, and the source transmits the data driving signal to the second electrode 230 via the drain, thereby driving the light-emitting device 200 to emit light through the voltage difference between the second electrode 230 and the first electrode 210. Of course, the array layer 2000 also includes other transistors and capacitors to implement signal transmission to the driving transistor T, etc.

[0188] In some embodiments of the present disclosure, the area of ​​the orthographic projection of the light-transmitting portion on the substrate 100 is smaller than the area of ​​the orthographic projection of the light-emitting device 200 on the substrate 10. Of course, the present invention is not limited to this. In other embodiments, while ensuring that the pixel resolution remains unchanged, the light transmittance of the display panel can be improved by increasing the area of ​​the orthographic projection of the light-transmitting portion on the substrate 100, such as by making the area of ​​the orthographic projection of the light-transmitting portion on the substrate 100 greater than or equal to the area of ​​the orthographic projection of the light-emitting device 200 on the substrate 100.

[0189] In some embodiments of the present disclosure, the orthographic projection of the second electrode 230, such as the anode, on the substrate 100 at least partially covers the orthographic projection of the driving transistor T on the substrate 100, or the orthographic projection of the light-transmitting portion on the substrate 100 at least partially does not cover the orthographic projection of the driving transistor T on the substrate 100, so as to prevent light from irradiating the driving transistor T through the reflection effect of the second electrode 230, such as the anode, and further prevent the driving transistor T from affecting the light transmittance of the light-transmitting portion.

[0190] In some embodiments of the present disclosure, the array layer 2000 may further include multiple stacked conductive layers and a first insulating layer located between adjacent conductive layers. A circuit structure is provided within the array layer 2000 to meet the needs of the display panel. For example, the first signal line 60 may be located within the array layer 2000.

[0191] In some embodiments, the display panel 10 further includes a second transparent filling portion, which is configured to fill the second light-transmitting opening 110. The second transparent filling portion fills the second light-transmitting opening 110, making the second light-transmitting opening 110 relatively flat, facilitating the subsequent preparation of other film layers. The second transparent filling portion comprises a transparent material, which, while flattening the display panel 10 at the second light-transmitting opening 110, can also ensure that the display panel 10 has a high transmittance at the second light-transmitting opening 110, thereby improving the performance of the display panel 10.

[0192] Below, taking the display panel shown in Figures 28 to 30 as an example, the specific structure of the display panel under another design provided by the present disclosure is described in detail.

[0193] Please refer to FIG. 28 , which is a partial cross-sectional view of a display panel provided by an embodiment of the present disclosure.

[0194] As shown in FIG28 , the present disclosure provides a display panel 10, which includes a substrate 100, an isolation structure 300, and a display function layer 24. The isolation structure 300 is located on the substrate 100 and includes a light-transmitting portion defining an isolation opening 301. Furthermore, the light-transmitting portion is made of a light-transmitting material.

[0195] In some embodiments of the present disclosure, the transmittance of the light-transmitting portion under test light is greater than 0.6%, such as a transmittance greater than 1%, 3%, 5%, 8%, 10%, 12%, 15%, 18%, 20% or 25%. The light transmittance of the light-transmitting portion in the visible light wavelength range is greater than 30%. Preferably, the light transmittance of the light-transmitting portion in the visible light wavelength range is greater than 50%; preferably, the light transmittance of the light-transmitting portion in the visible light wavelength range is greater than 60%; preferably, the light transmittance of the light-transmitting portion in the visible light wavelength range is greater than 70%, so that the display panel can meet the transmittance requirements of under-screen fingerprints and under-screen cameras. The test light can be visible light or near-infrared light, and the wavelength of the test light can be 550nm or 940nm.

[0196] In some embodiments of the present disclosure, the isolation structure 300 includes a first light-transmitting layer 311 and a second light-transmitting layer 321 stacked along the thickness direction, the second light-transmitting layer 321 is located on the side of the first light-transmitting layer 311 away from the substrate 100, and the orthographic projection of the first light-transmitting layer 311 on the substrate 100 is located within the orthographic projection of the second light-transmitting layer 321 on the substrate 100; the display function layer 24 includes light-emitting units 220 that are spaced apart from each other and located in each isolation opening 301.

[0197] According to the display panel 10 of the embodiment of the present disclosure, the display panel 10 includes a substrate 100, an isolation structure 300, and a display function layer 24. The isolation structure 300 is arranged on the substrate 100 and encloses a plurality of isolation openings 301. The isolation structure 300 includes a first light-transmitting layer 311 and a second light-transmitting layer 321. The orthographic projection of the first light-transmitting layer 311 on the substrate 100 is located within the orthographic projection of the second light-transmitting layer 321 on the substrate 100, so that the first light-transmitting layer 311 is concave relative to the second light-transmitting layer 321 to separate the display function layer 24 to form mutually disconnected light-emitting units 220, thereby reducing the crosstalk of carriers in the display function layer 24, and can reduce the development and use of precision masks and reduce the preparation cost. The light-emitting unit 220 is located in the isolation opening 301 to achieve light-emitting display. The first light-transmitting layer 311 and the second light-transmitting layer 321 have a high transmittance. When the display panel 10 is provided with a photosensitive component, the light-transmitting isolation structure 300 can improve the photosensitivity effect of the photosensitive component.

[0198] Please refer to FIG. 29 , which is a partial cross-sectional view of a display panel in another embodiment.

[0199] As shown in FIG. 29 , in some optional embodiments, the isolation structure 300 further includes a third light-transmitting layer 331 . The third light-transmitting layer 331 is located on a side of the first light-transmitting layer 311 facing the substrate 100 .

[0200] In some embodiments of the present disclosure, the third light-transmitting layer 331 also has a high transmittance, ensuring the light transmission effect of the isolation structure 300. The third light-transmitting layer 331 is located between the first light-transmitting layer 311 and the substrate 100. When etching the first light-transmitting layer 311, the third light-transmitting layer 331 provides a certain degree of protection for the substrate 100, reducing the etching waste of the first light-transmitting layer 311 from entering the substrate 100, thereby improving the problem of substrate 100 being easily damaged by the invasion of etching waste.

[0201] In some optional embodiments, the display panel 10 also includes a second electrode layer 2300, which is located on the side of each display function layer 24 away from the substrate 100. The second electrode layer 2300 includes second electrodes 230 that are spaced apart from each other and located in each isolation opening 301. The third light-transmitting layer 331 includes a conductive material, and the second electrode 230 and the third light-transmitting layer 331 are electrically connected.

[0202] In some embodiments of the present disclosure, the second electrode layer 2300 is disconnected by the isolation structure 300 to form a second electrode 230 located in each isolation opening 301, and the second electrode 230 and the third light-transmitting layer 331 are electrically connected, so that the second electrodes 230 spaced apart from each other can be electrically connected to each other through the isolation structure 300 to form a full-surface electrode.

[0203] Optionally, the third light-transmitting layer 331 includes a light-transmitting conductive layer. The third light-transmitting layer 331 has both high transmittance and good conductivity, which increases the transmittance of the display panel 10 while ensuring that the second electrodes 230 are electrically connected to each other through the third light-transmitting layer 331 .

[0204] Optionally, the second light-transmitting layer 321 and the third light-transmitting layer 331 include at least one of indium tin oxide (ITO) and indium zinc oxide (IZO). Both indium tin oxide (ITO) and indium zinc oxide (IZO) have high transmittance and conductivity, which increase the transmittance of the display panel 10 while ensuring that the second electrodes 230 are electrically connected to each other through the third light-transmitting layer 331.

[0205] Optionally, the third light-transmitting layer 331 includes a light-transmitting metal layer, which increases the transmittance of the display panel 10 while ensuring that the second electrodes 230 are electrically connected to each other through the third light-transmitting layer 331. For example, the third light-transmitting layer 331 includes a thin silver metal layer.

[0206] Optionally, the first light-transmitting layer 311 includes an inorganic light-transmitting layer. For example, the first light-transmitting layer 311 includes silicon nitride (SiN) or silicon oxide (SiO). The first light-transmitting layer 311 is an inorganic light-transmitting material. While increasing the transmittance of the display panel 10, the first light-transmitting layer 311 of the inorganic material and the second light-transmitting layer 321 and the third light-transmitting layer 331 can adopt different etching methods, so that the first light-transmitting layer 311 is etched separately, so that the first light-transmitting layer 311 is concavely set relative to the second light-transmitting layer 321, thereby achieving a partitioning effect on the display function layer 24 and the second light-transmitting layer 321.

[0207] Optionally, the first light-transmitting layer 311 includes a light-transmitting metal layer. For example, the first light-transmitting layer 311 includes a metal silver (Ag) thin film. The first light-transmitting layer 311 also has high transmittance and good conductivity. The second electrodes 230 can be electrically connected to each other through the third light-transmitting layer 331 or through the first light-transmitting layer 311. When the isolation structure 300 consists only of the first light-transmitting layer 311 and the second light-transmitting layer 321, the first light-transmitting layer 311 includes a light-transmitting conductive layer, and the second electrodes 230 are electrically connected to the first light-transmitting layer 311 to achieve electrical connection between the second electrodes 230.

[0208] Optionally, the second light-transmitting layer 321 includes a light-transmitting metal layer. The second light-transmitting layer 321 and the third light-transmitting layer 331 are both light-transmitting metal layers, which can further improve the transmittance of the display panel 10 .

[0209] Optionally, the cross-sectional shape of the first light-transmitting layer 311 along the thickness direction of the display panel 10 includes a trapezoidal shape. When the cross-sectional shape of the first light-transmitting layer 311 is a trapezoidal shape, on the one hand, it can stably support the second light-transmitting layer 321, and on the other hand, the first light-transmitting layer 311 is configured as a concave portion of the second light-transmitting layer 321, thereby facilitating disconnection of the second electrode 230 at the isolation structure 300.

[0210] In some optional embodiments, the orthographic projection of the first light-transmitting layer 311 on the substrate 100 is located within the orthographic projection of the third light-transmitting layer 331 on the substrate 100 .

[0211] In these optional embodiments, the orthographic projection of the first light-transmitting layer 311 on the substrate 100 is located within the orthographic projection of the third light-transmitting layer 331 on the substrate 100, that is, the bottom surface of the first light-transmitting layer 311 close to the substrate 100 is completely located above the third light-transmitting layer 331, and the side of the first light-transmitting layer 311 facing the isolation opening 301 is concave relative to the third light-transmitting layer 331. When preparing the second electrode 230, the edge of the third light-transmitting layer 331 protrudes from the first light-transmitting layer 311, which can increase the contact area between the third light-transmitting layer 331 and the second electrode 230, thereby improving the overlapping performance between the second electrode 230 and the third light-transmitting layer 331.

[0212] As shown in Figure 30, Figure 30 is a schematic diagram of the cross-sectional structure of another display panel disclosed in an embodiment of the present invention. In some optional embodiments, the display panel 10 includes a overlapping portion 250, which is overlapped on the side of the isolation structure 300 facing the isolation opening 301 and is electrically connected to the third light-transmitting layer 331, and the overlapping portion 250 is electrically connected to the second electrode 230.

[0213] In these optional embodiments, the overlapping portion 250 is arranged on the side of the isolation structure 300 facing the isolation opening 301, so that the third light-transmitting layer 331 and the second electrode 230 can be electrically connected through the overlapping portion 250 to improve the overlapping performance of the second electrode 230 and the third light-transmitting layer 331.

[0214] Optionally, the overlapping portion 250 overlaps the side of the third light-transmitting layer 331 facing the isolation opening 301 , so that the third light-transmitting layer 331 is electrically connected to the second electrode 230 through the overlapping portion 250 .

[0215] Optionally, the overlapping portion 250 is simultaneously overlapped on the side of the first light-transmitting layer 311 and the third light-transmitting layer 331 facing the isolation opening 301. When the first light-transmitting layer 311 and the third light-transmitting layer 331 are both conductive materials, the second electrode 230 is simultaneously overlapped on the first light-transmitting layer 311 and the third light-transmitting layer 331 through the overlapping portion 250, further improving the overlapping performance of the second electrode 230 and the isolation structure 300.

[0216] Optionally, the overlapping portion 250 includes a light-transmitting metal material, so that the second electrode 230 overlaps the isolation structure 300 and the transmittance of the display panel 10 is improved. In some optional embodiments, the light-emitting unit 220 is spaced apart from the isolation structure 300 .

[0217] In these optional embodiments, the light-emitting units 220 and the isolation structure 300 are spaced apart from each other, making it difficult for the light-emitting units 220 to be electrically connected to each other through the isolation structure 300 , further reducing carrier crosstalk between the light-emitting units 220 .

[0218] In some optional embodiments, the light emitting unit 220 and the isolation structure 300 are spaced apart to form a gap 360 , and part of the overlapping portion 250 is located in the gap 360 .

[0219] In these optional embodiments, when preparing the overlapping portion 250 , part of the overlapping portion 250 is deposited into the gap 360 to fill the gap 360 and contact the third light-transmitting layer 331 , thereby improving the overlapping performance between the overlapping portion 250 and the third light-transmitting layer 331 .

[0220] As shown in FIG31 , FIG31 is a schematic diagram of the cross-sectional structure of another display panel disclosed in an embodiment of the present invention. The isolation structure 300 further includes a non-light-transmitting portion 112 , and the non-light-transmitting portion 112 partially surrounds the light-transmitting portion.

[0221] In some embodiments, the non-light-transmitting portion 112 only surrounds the first light-transmitting layer 311 and the second light-transmitting layer 321, and does not surround the transparent conductive layer in the third light-transmitting layer 331, so that the transparent conductive layer can be electrically connected to the second electrode 230. Of course, the present invention is not limited to this. In other embodiments, the non-light-transmitting portion 112 only surrounds part of the side walls of the light-transmitting portions such as the first light-transmitting layer 311, the second light-transmitting layer 321 and the third light-transmitting layer 331, so that the exposed side walls can enable the transparent conductive layer to be electrically connected to the second electrode 230.

[0222] In some optional embodiments, as shown in Figure 32, the substrate 100 also includes a second insulating layer 600, the second insulating layer 600 includes a covering portion 610 and a third through hole 620 formed by the covering portion 610, the covering portion 610 covers the side surface of the first electrode 210, a partial area of ​​the first electrode 210 is exposed by the third through hole 620, and the third through hole 620 is connected to the isolation opening 301.

[0223] In some embodiments, the second electrode 230 is exposed by the third through hole 620. One of the second electrode 230 and the first electrode 210 serves as the anode of the light-emitting unit 220, and the other serves as the cathode of the light-emitting unit 220. The embodiment of the present disclosure is illustrated by taking the second electrode 230 as the anode of the light-emitting unit 220 and the first electrode 210 as the cathode of the light-emitting unit 220. The covering portion 610 of the second insulating layer 600 encloses and forms the third through hole 620 to set the light-emitting unit 220 and realize normal light emission of the light-emitting unit 220. The covering portion 610 defines the setting area of ​​each light-emitting unit 220 to reduce the color cross-talk between each light-emitting unit 220. The covering portion 610 covers the side surface of the first electrode 210 to achieve the insulating edging of the side surface of the first electrode 210 by the covering portion 610, thereby reducing the intrusion of water vapor through the covering portion 610 and improving the service life of the display panel 10.

[0224] As shown in Figure 32, in some optional embodiments, the isolation structure 300 is located on the cover portion 610. In these optional embodiments, the isolation structure 300 is disposed on the cover portion 610, and the isolation structure 300 has a large height difference corresponding to the third through hole 620. When manufacturing the display function layer 24, due to the large height difference, the display function layer 24 is more easily disconnected at the location of the isolation structure 300, reducing the difficulty of manufacturing the display function layer 24.

[0225] As shown in FIG. 33 , in some optional embodiments, the isolation structure 300 is located on the covering portion 610 .

[0226] In these optional embodiments, an accommodating opening 640 is provided on the covering portion 610 of the isolation structure 300, and the isolation structure 300 is located in the accommodating opening 640. The isolation structure 300 is arranged in the accommodating opening 640 on the covering portion 610. During the preparation process, the preparation step of the isolation structure 300 is before the preparation of the first electrode 210, that is, after the isolation structure 300 is prepared on the substrate 100, the first electrode 210 is prepared on the substrate 100, so as to reduce the impact of the preparation of the isolation structure 300 on the first electrode 210 and ensure that the first electrode 210 is not damaged.

[0227] In some optional embodiments, there are multiple covering portions 610, one covering portion 610 covering the side of one first electrode 210 and arranged in a ring around the side of the first electrode 210. The isolation structure 300 is located in the gap between adjacent covering portions 610. The isolation structure 300 is arranged in the gap between adjacent covering portions 610. During the preparation process, the preparation step of the isolation structure 300 is before the preparation of the first electrode 210, that is, after the isolation structure 300 is prepared on the substrate 100, and then the first electrode 210 is prepared on the substrate 100, so as to reduce the impact of the preparation of the isolation structure 300 on the first electrode 210 and ensure that the first electrode 210 is not damaged. In addition, the multiple covering portions 610 are arranged at intervals, making it difficult for water vapor to extend and invade between the covering portions 610, thereby improving the service life of the display panel 10.

[0228] In some optional embodiments, the second insulating layer 600 includes a pixel defining layer 400, the second insulating layer 600 is reused as the pixel defining layer 400, the covering portion 610 is reused as the pixel defining portion, the third through hole 620 is reused as the fourth opening 201, and the isolation structure 300 is located on the side of the pixel defining portion facing away from the substrate 100. In these optional embodiments, the isolation structure 300 is provided on the pixel defining portion, and the isolation structure 300 is equivalent to having a large height difference in the pixel opening. When preparing the display function layer 24, due to the large height difference, the display function layer 24 is more easily disconnected at the isolation structure 300 position, thereby reducing the difficulty of preparing the display function layer 24.

[0229] Optionally, the second insulating layer 600 includes an organic material and / or an inorganic material. When the second insulating layer 600 includes an inorganic material, the inorganic material has better density and higher packaging performance.

[0230] In some optional embodiments, the substrate 100 may include a substrate and a driving circuit layer located on the substrate, the driving circuit layer including a plurality of pixel driving circuits located in the second area 11, and the display function layer 24 located on the driving circuit layer. For example, the pixel driving circuit may include a plurality of transistors TFTs, capacitors, etc., and may be formed in various forms such as 2T1C (i.e., 2 transistors (TFTs) and 1 capacitor (C)), 3T1C, or 7T1C. The pixel driving circuit is connected to the light-emitting device 200 to control the switching state and the light brightness of the light-emitting device 200.

[0231] For example, as shown in FIG34 , the substrate 100 may include a substrate 1000 for supporting a driving circuit layer, and the substrate 100 may further include a buffer layer 120 located between the driving circuit layer and the substrate 1000. The buffer layer 120 is used to isolate harmful ions (such as hydrogen ions) in the substrate 1000. The driving circuit layer also includes insulating film layers for limiting various structures of the driving circuit (such as various signal lines, electrodes of capacitors, active layers, source-drain electrodes, gate electrodes, etc. in TFTs). These insulating film layers may include a gate insulating layer 130, an interlayer dielectric layer 140, a planarization layer 150, and the like.

[0232] In an embodiment of the present disclosure, the first light-transmitting opening 302 can be deepened to increase the light transmittance of the first region 13. That is, at least one of the pixel defining layer, the substrate, the buffer layer, the gate insulating layer, the interlayer dielectric layer, and the planar layer is provided with a via hole, and the via hole corresponds to and is connected to the first light-transmitting opening 302. For example, as shown in FIG34 , the pixel defining layer 400, the buffer layer 120, the gate insulating layer 130, the interlayer dielectric layer 140, and the planar layer 150 are defined with a via hole 303, and the via hole 303 corresponds to and is connected to the first light-transmitting opening 302. That is, the provision of the via hole 303 is equivalent to increasing the depth of the first light-transmitting opening 302.

[0233] In an embodiment of the present disclosure, a plurality of vias may be provided, and the depths of the vias at different positions may be the same, or may be provided different. For example, the depth of some vias may extend through the substrate, and the depth of some vias may only pass through the pixel defining layer 400. In addition, in the case where a plurality of first light-transmitting openings 302 are provided, a via may be provided under each first light-transmitting opening 302, or vias may be provided only under some of the first light-transmitting openings 302. In addition, in the case where the first light-transmitting openings 302 are provided in a grid shape, the vias are not limited to being in a grid shape. For example, the vias may be provided in a grid shape, and the grid-shaped vias may be provided to only pass through the pixel defining layer 400, or to pass through the pixel defining layer 400 and the flat layer 150, so as to avoid the vias from affecting the circuit structure in the driving circuit layer. Alternatively, the vias may be provided in a plurality to be dispersedly arranged under the grid-shaped first light-transmitting openings.

[0234] In at least one embodiment of the present disclosure, as shown in FIG35 , the display panel 10 may further include a protective layer 800 that covers at least the light-emitting devices 200 to protect the film layers of the light-emitting devices 200 during the display panel manufacturing process. The light-emitting devices 200 emitting different light are manufactured independently, but the film layers (evapor-deposited film layers, such as light-emitting units) in each light-emitting device 200 are evaporated onto the entire surface of the display panel. For example, the light-emitting device 200 is classified into light-emitting devices that emit red light (R), green light (G) and blue light (B), respectively. During the preparation process, the light-emitting devices R, G, and B are prepared in sequence. When preparing the light-emitting device R, a light-emitting device R is formed in each isolation opening. A protective layer 800 is prepared on the display panel to cover the light-emitting device G. Then, the protective layer 800 in some isolation openings (used to form the light-emitting devices G and B in the final product) and the first electrode and the light-emitting unit of the light-emitting device R are removed. During this process, the protective layer 800 is used to protect the light-emitting devices R in other isolation openings. Based on this method, the light-emitting devices G and B are prepared in sequence, and finally the protective layer 800 shown in Figure 35 is formed.

[0235] The protective layer has already played a packaging effect on the light-emitting device, so the protective layer can also be called an encapsulation layer (only one film layer is provided) or one of the encapsulation layers (when there are multiple encapsulation film layers).

[0236] In at least one embodiment of the present disclosure, as shown in FIG. 23 , the display panel 10 may further include a touch electrode layer 700 .

[0237] The touch electrode layer 700 includes a plurality of touch electrode blocks 710, which are connected to each other to form a grid pattern having mesh holes. Accordingly, the mesh holes of the grid pattern are surrounded by a plurality of touch electrode blocks 710 connected to each other. The mesh holes of the grid pattern correspond to the isolation opening 301 and the first light-transmitting opening 302, respectively, and the orthographic projections of the isolation opening 301 and the first light-transmitting opening 302 on the substrate 100 at least partially overlap with the orthographic projections of the corresponding mesh holes on the substrate 100.

[0238] In at least one embodiment of the present disclosure, as shown in Figure 23 and Figures 35 to 38, the touch electrode layer 700 includes a plurality of parallel first touch electrodes 741 and a plurality of parallel second touch electrodes 742, the first touch electrodes 741 are composed of a plurality of touch electrode blocks 710 connected to each other along the row direction (the direction of the X-axis in Figure 37), the second touch electrodes 742 are composed of a plurality of touch electrode blocks 710 connected to each other along the column direction (the direction of the Y-axis in Figure 37), the first touch electrodes 741 and the second touch electrodes 742 are spaced apart from each other and cross each other to form a touch unit at the intersection, and the first touch electrodes 741 and the second touch electrodes 742 are arranged in a grid pattern.

[0239] For example, in some embodiments of the present disclosure, as shown in Figures 37 and 38 , the first touch electrode 741 is located between the second touch electrode 742 and the isolation structure 300. For example, a first conductive material layer can be first deposited and patterned to form a plurality of first touch electrodes 741, wherein the first conductive material layer is formed into a plurality of meshes so that the first touch electrodes 741 form a grid pattern. A touch insulating layer 743 is deposited on the first touch electrodes 741 to cover the first touch electrodes 741. A second conductive material layer is deposited on the touch insulating layer 743 and patterned to form a plurality of second touch electrodes 742, wherein the second conductive material layer is formed into a plurality of meshes so that the second touch electrodes 742 form a grid pattern. Macroscopically, the area where the first touch electrodes 741 and the second touch electrodes 742 intersect and overlap is the area where the touch unit is located. In this overlapping area, both the first touch electrodes 741 and the second touch electrodes 742 appear transparent.

[0240] For example, in the structures shown in Figures 37 and 38, the orthographic projection of the mesh in the first touch electrode 741 on the substrate 100 and the orthographic projection of the mesh in the second touch electrode 742 on the substrate 100 partially overlap to improve the transmittance of the touch electrode layer 700.

[0241] For example, in other embodiments of the present disclosure, as shown in Figures 39 and 40, the first touch electrode 741 includes a plurality of first sub-touch electrodes 7411 spaced apart from each other and a plurality of first connecting portions 7412, the plurality of first sub-touch electrodes 7411 of the same first touch electrode 741 are connected through the first connecting portions 7412, the second touch electrode 742 includes a plurality of second sub-touch electrodes 7421 spaced apart from each other and a plurality of second connecting portions 7422, the plurality of second sub-touch electrodes 7421 of the same second touch electrode 742 are connected through the second connecting portions 7422, the first connecting portions 7412 and the second connecting portions 7422 cross and are spaced apart from each other, wherein the first sub-touch electrode 7411, the first connecting portion 7412 and the second touch electrode 742 are in the same layer, and the second connecting portion 7422 is located between the first connecting portion 7412 and the isolation structure 300, or the second connecting portion 7422 is located on the side of the first connecting portion 7412 facing away from the isolation structure 300. The touch electrode layer 700 of this design has high light transmittance, and the alignment accuracy between the mesh, the isolation opening 301 and the first light-transmitting opening 302 is high, thereby improving the light transmittance of the first region 13 . For example, a first conductive material layer can be deposited first and patterned to form a plurality of first touch electrodes 741 and a second sub-touch electrode 7421 in a plurality of second touch electrodes 742, wherein the first conductive material layer is formed into a plurality of meshes so that the first touch electrode 741 and the second sub-touch electrode 7421 in the plurality of second touch electrodes 742 are both formed into a grid pattern; a touch insulating layer 743 is deposited to cover the first touch electrode 741 and the second sub-touch electrode 7421 in the plurality of second touch electrodes 742; the touch insulating layer 743 is patterned to form a through hole exposing the second sub-touch electrode 7421; a second conductive material layer is deposited on the touch insulating layer 743 and patterned to form a second connecting portion 7422 in the second touch electrode 742, and the second connecting portion 7422 is connected to the second sub-touch electrode 7421 through the through hole. In this design, the main parts of the first touch electrode 741 and the second touch electrode 742 are designed in the same layer, so there is no need to consider the mesh alignment problem between the two, which is beneficial to improving the light transmittance of the touch electrode layer 700.

[0242] In at least one embodiment of the present disclosure, referring again to Figures 23 and 35 to 36 , the width of the touch electrode blocks 710 in the grid pattern needs to be designed to be smaller than the pitch of the light-emitting units 220. That is, the orthographic projection of the touch electrode blocks 710 in the grid pattern on the substrate 100 is located within the orthographic projection of the isolation structure 300 on the substrate 100. This also ensures that the orthographic projections of the isolation openings 301 and the first light-transmitting openings 302 on the substrate 100 are located within the orthographic projections of the corresponding mesh holes on the substrate 100. This design allows the light emitted from the display panel to have a larger angle of incidence, thereby providing the display panel with a wider viewing angle.

[0243] In at least one embodiment of the present disclosure, referring again to Figures 23 and 35 to 36, the distances from the touch electrode blocks of the grid pattern located between two adjacent isolation openings 301 to the isolation openings 301 are equal. For two adjacent isolation openings 301 and the touch electrode blocks of the grid pattern located between two adjacent isolation openings 301, the minimum distances from the orthographic projections of any point on the touch electrode blocks on the substrate to the orthographic projections of the isolation openings 301 on the substrate are equal; and / or, the distances from the touch electrode blocks of the grid pattern located between an adjacent isolation opening 301 and a first light-transmitting opening 302 to the isolation opening 301 and the first light-transmitting opening 302 are equal. For two adjacent isolation openings 301 and the first light-transmitting opening 302 and the touch electrode blocks of the grid pattern located between two adjacent isolation openings 301 and the first light-transmitting opening 302, the minimum distances from the orthographic projections of any point on the touch electrode blocks on the substrate to the orthographic projections of the isolation opening 301 and the first light-transmitting opening 302 on the substrate are equal. This design can make the maximum viewing angles of the light-emitting unit in different directions roughly equal, thereby alleviating the color shift phenomenon.

[0244] For example, in some embodiments of the present disclosure, the touch electrode blocks 710 in a grid pattern can be designed as a linear structure as shown in Figures 23 and 35 to 36. This linear structure is composed of straight segments and curved segments, and the widths of the straight segments and curved segments are substantially equal. For example, "the distances from the touch electrode blocks to the isolation openings 301 are equal" can be understood as: the shortest distances from any point on the touch electrode blocks to adjacent isolation openings 301 are equal, that is, the touch electrode blocks are located on the center dividing line of adjacent isolation openings 301.

[0245] For example, in other embodiments of the present disclosure, as shown in Figures 41 and 42, the meshes enclosed by the touch electrode block 710 in a grid pattern are conformal to the corresponding isolation openings and / or first light-transmitting openings, so that the orthographic projections of different points of the touch electrode block 710 enclosing the same mesh on the substrate are equal to the minimum distance from the orthographic projections of the isolation openings or the first light-transmitting openings on the substrate. In this case, the shape of the touch electrode block 710 is shown in Figure 42. In this case, to ensure the viewing angle of the display panel, the edges of the meshes can be spaced apart from the edges of the corresponding isolation openings by a first spacing, which can be a preset value, so that the maximum viewing angles of the light-emitting units in all directions are approximately equal.

[0246] In at least one embodiment of the present disclosure, the display panel 10 may further include an encapsulation layer covering the display function layer 24, which may isolate the light-emitting device 200 in the display function layer 24 and have a flattening function so as to facilitate the provision of functional structures such as a touch function layer, a polarizer, a lens layer, and a cover plate on the encapsulation layer. For example, the encapsulation layer may include a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer sequentially stacked on the display function layer 24. The first inorganic encapsulation layer and the second inorganic encapsulation layer have high density to isolate water, oxygen, etc. The organic encapsulation layer has a large thickness and has a flattening function. For example, in the case where the aforementioned protective layer is provided in the display panel, the protective layer may be independently provided to be located between the first encapsulation layer and the display function layer 24, or may serve as the first inorganic encapsulation layer.

[0247] Specifically, in an embodiment of the present disclosure, as shown in FIG. 24 , in some embodiments, the display panel further includes a first packaging layer 71 on the side of the display function layer 24 facing away from the substrate 100 , and the first packaging layer 71 includes a first packaging portion 711 disposed in a plurality of isolation openings 301 .

[0248] The first encapsulation layer 71 is used to encapsulate and protect the light-emitting unit 220. The first encapsulation layer 71 includes multiple first encapsulation portions 711. The multiple first encapsulation portions 711 are arranged corresponding to the multiple isolation openings 301. In other words, the multiple first encapsulation portions 711 can be arranged corresponding to multiple light-emitting units 220. This design enables the multiple first encapsulation portions 711 in the first encapsulation layer 71 to independently encapsulate multiple light-emitting units 220, helping to improve encapsulation reliability.

[0249] Furthermore, the material of the first encapsulation layer 71 is not continuously present between adjacent isolation units 31, so the presence of the first encapsulation layer 71 does not significantly affect the stretching of the display panel. The first encapsulation portion 711 is positioned corresponding to the light-emitting unit 220, so it can move along with the light-emitting unit 220 and isolation unit 31, meeting the stretching requirements of the display panel.

[0250] The present embodiment does not limit the material composition of the first encapsulation layer 71. For example, the first encapsulation layer 71 includes an inorganic material.

[0251] Similarly, in some embodiments, as shown in FIG. 24 , the display panel further includes a second encapsulation layer 72 disposed on a side of the first encapsulation layer 71 facing away from the substrate 100 . The second encapsulation layer 72 includes second encapsulation portions 721 disposed in a plurality of isolation openings 301 .

[0252] The first encapsulation layer 71 and the second encapsulation layer 72 are both used to achieve an encapsulation effect. The structure of the second encapsulation layer 72 is similar to that of the first encapsulation layer 71. The second encapsulation layer 72 also includes a second encapsulation portion 721 corresponding to a plurality of light-emitting units 220. Therefore, the second encapsulation portion 721 can be displaced along with the isolation opening 301 and the isolation unit 31 to meet the stretching requirements of the display panel. The embodiment of the present application does not limit the material composition of the second encapsulation layer 72. For example, the second encapsulation layer 72 includes an organic material. It should be noted that the second encapsulation portion 721 can also be filled in the first light-transmitting opening 302, and the material of the second encapsulation portion 721 and the first transparent filling portion T can be the same or different.

[0253] At least one embodiment of the present disclosure provides a display device, as shown in FIG45 , wherein the display device 1 includes an identification device 20 and a display panel 10 in any of the above embodiments, and the orthographic projection of the identification device 20 on the substrate 100 at least partially overlaps with the first area 13 .

[0254] For example, in some embodiments of the present disclosure, the identification device 20 includes at least one fingerprint identification sensor 21. For example, the fingerprint identification sensor 21 can be disposed on a side of the substrate 100 away from the display function layer 24, or the fingerprint identification sensor 21 can also be disposed within the substrate 100.

[0255] For example, in other embodiments of the present disclosure, the identification device 20 may be a camera, which is located on a side of the substrate 100 facing away from the display function layer 24 , or the camera may be disposed within the substrate 100 .

[0256] For example, in the embodiments of the present disclosure, the display device may be any product or component with a display function, such as a television, a digital camera, a mobile phone, a watch, a tablet computer, a laptop computer, or a navigator.

[0257] The above are only preferred embodiments of this specification and are not intended to limit this specification. Any modifications, equivalent replacements, etc. made within the spirit and principles of this specification should be included in the scope of protection of this specification.

[0258] At least one embodiment of the present disclosure provides a method for manufacturing a display panel. The following describes the manufacturing process of the display panel 10 shown in Figure 43. As shown in Figure 44, the present disclosure provides a method for manufacturing a display panel including the following steps.

[0259] Step S10: Prepare a substrate. After preparing the substrate 100, an array of first electrodes 210 may be formed on the substrate 100. An insulating material layer (e.g., an inorganic material layer) may be deposited on the substrate 100 having the first electrodes 210 formed thereon. Optionally, the insulating material layer is patterned to form a pixel defining layer 400 (having a grid-like planar shape). The pixel defining layer 400 covers the gaps between adjacent first electrodes 210, resulting in a grid-like planar shape for the pixel defining layer 400.

[0260] In step S20, an isolation structure is prepared on the substrate, wherein the isolation structure defines an isolation opening. For example, a first isolation layer 310 and a second isolation layer 320 are formed on the display panel, wherein the isolation opening is formed.

[0261] Step S30: preparing a display function layer on the substrate, wherein the display function layer includes a light emitting device located in the isolation opening. Step S40: preparing a first light-transmitting opening on the isolation structure.

[0262] At least one embodiment of the present disclosure further provides a method for manufacturing a display panel. The following describes the manufacturing process of the display panel 10 shown in FIG. 43 in conjunction with FIG. 46 to FIG. 49 .

[0263] As shown in Figure 46, a substrate 100 is provided and a first electrode 210 arranged in an array is formed on the substrate 100; an insulating material film layer (for example, an inorganic material film layer) is deposited on the substrate 100 on which the first electrode 210 is formed; a first isolation layer 310 and a second isolation layer 320 are formed on the display panel, wherein isolation openings and first light-transmitting openings are formed (not shown in the figure, refer to the previous series of figures); the insulating material film layer is subjected to a composition process to form a pixel defining layer 400 (the plane shape is a grid shape), and the pixel defining layer 400 covers the gaps between adjacent first electrodes 210, so that the plane shape of the pixel defining layer 400 is a grid shape.

[0264] In an embodiment of the present disclosure, the patterning process may be a photolithography patterning process, which may include, for example, coating a photoresist on a structural layer to be patterned, exposing the photoresist using a mask, developing the exposed photoresist to obtain a photoresist pattern, etching the structural layer using the photoresist pattern (optionally wet etching or dry etching), and then optionally removing the photoresist pattern. In the case where the material of the structural layer (e.g., the photoresist pattern 701 described below) includes photoresist, the structural layer may be directly exposed through a mask to form the desired pattern.

[0265] As shown in FIG47 , a light-emitting unit 220 and a second electrode 230 are evaporated on a substrate 100 to form a light-emitting device 200 in each isolation opening of the isolation structure 300. No mask is used in this evaporation process, so the evaporated material is also deposited on the second isolation layer 320 and in the first light-transmitting opening. A protective layer 800 is then deposited to cover the light-emitting device 200. At this stage, the protective layer 800 covers the entire second display area. For example, the light-emitting layer 222 in the evaporated light-emitting unit 220 can emit red light (R). That is, at this stage, a light-emitting device 200 emitting red light (the aforementioned first light-emitting device) is formed in each isolation opening of the isolation structure 300.

[0266] As shown in Figure 48, a photoresist is formed (for example, coated) on a substrate 100 on which a protective layer 800 is formed, and then a patterning process is performed to form a photoresist pattern 701. The photoresist pattern 701 only covers a portion of the isolation opening of the isolation structure 300 (the isolation opening corresponding to the first light-emitting device after the display panel is prepared).

[0267] As shown in FIG49 , the surface of the display panel is etched using the photoresist pattern 701 as a mask to remove the protective layer 800 , the second electrode 230 and the light-emitting unit 220 covered by the photoresist pattern 701 ; and then the remaining photoresist pattern 701 is removed.

[0268] Repeat the steps of FIG. 46 to FIG. 49 to form a light emitting device 200 emitting green light and a light emitting device 200 emitting blue light in other isolation openings, respectively, and form the display panel shown in FIG. 34 .

[0269] The present disclosure also provides a method for manufacturing a display panel 10. The following describes the manufacturing process of the display panel 10 shown in FIG. 27 in conjunction with FIG. 50 to FIG. 53. The manufacturing method includes:

[0270] Step S01: a first light-transmitting material layer and a second light-transmitting material layer are provided on a substrate, wherein the second light-transmitting material layer is located on a side of the first light-transmitting material layer facing away from the substrate.

[0271] Step S02: patterning the first light-transmitting material layer and the second light-transmitting material layer to form a first light-transmitting layer and a second light-transmitting layer, wherein the orthographic projection of the first light-transmitting layer on the substrate is within the orthographic projection of the second light-transmitting layer on the substrate, and the first light-transmitting layer and the second light-transmitting layer are stacked to form an isolation structure.

[0272] Step S03: preparing a light-emitting layer, wherein the light-emitting layer includes light-emitting units spaced apart from each other and located in each isolation opening.

[0273] According to the preparation method of the embodiment of the present application, as shown in FIG50, a first light-transmitting material layer and a second light-transmitting material layer are provided through step S01. As shown in FIG51 and FIG52, a first light-transmitting layer 311 and a second light-transmitting layer 321 are prepared through step S02. As shown in FIG53, the display function layer 24 is finally prepared through step S03, and the light-emitting unit 220 is located in the isolation opening 301 to realize light-emitting display. The isolation structure 300 includes a first light-transmitting layer 311 and a second light-transmitting layer 321. The orthographic projection of the first light-transmitting layer 311 on the substrate 100 is located within the orthographic projection of the second light-transmitting layer 321 on the substrate 100, so that the first light-transmitting layer 311 is concave relative to the second light-transmitting layer 321 to separate the display function layer 24 to form mutually disconnected light-emitting units 220, thereby reducing the crosstalk of carriers in the display function layer 24, and can reduce the development and use of precision masks, thereby reducing the preparation cost. The first light-transmitting layer 311 and the second light-transmitting layer 321 have a high transmittance. When the display panel 10 is provided with a photosensitive component, the light-transmitting isolation structure 300 can improve the photosensitivity effect of the photosensitive component.

[0274] In some optional embodiments, in the step of patterning the first light-transmitting material layer and the second light-transmitting material layer to form the first light-transmitting layer 311 and the second light-transmitting layer 321 , the method further includes:

[0275] performing dry etching on the first light-transmitting material layer to form a first light-transmitting layer;

[0276] The second light-transmitting material layer is wet-etched to form a second light-transmitting layer.

[0277] In these optional embodiments, the second light-transmitting layer 321 and the first light-transmitting layer 311 are etched in different ways, so that the etching of the first light-transmitting layer 311 and the second light-transmitting layer 321 do not affect each other, making it easier for the first light-transmitting layer 311 to be concave relative to the second light-transmitting layer 321, thereby achieving a partitioning effect on the display function layer 24 and the second electrode layer 2300.

[0278] In some optional embodiments, a third light-transmitting material layer is provided on the substrate 100, and the third light-transmitting material layer is located between the first light-transmitting material layer and the substrate 100. After dry etching the first light-transmitting material layer to form the first light-transmitting layer 311, the method further includes:

[0279] Wet etching the third light-transmitting material layer by layer to form a third light-transmitting layer;

[0280] The first light-transmitting layer is dry-etched so that the orthographic projection of the first light-transmitting layer on the substrate is located within the orthographic projection of the third light-transmitting layer on the substrate.

[0281] In these optional embodiments, a third light-transmitting material layer is disposed between the first light-transmitting material layer and the substrate 100. When etching the first light-transmitting material layer, the third light-transmitting material layer provides a certain degree of protection for the substrate 100, reducing etching waste from the first light-transmitting material layer from entering the substrate 100, thereby improving the problem of substrate 100 being susceptible to invasion and damage caused by etching waste. The orthographic projection of the first light-transmitting layer 311 on the substrate 100 is located within the orthographic projection of the third light-transmitting layer 331 on the substrate 100, that is, the bottom surface of the first light-transmitting layer 311 on the side closest to the substrate 100 is completely located in the third light-transmitting layer 331. When preparing the first electrode 410, the edge of the third light-transmitting layer protrudes from the first light-transmitting layer 311, which can increase the contact area between the third light-transmitting layer and the second electrode 230, thereby improving the overlap performance between the second electrode 230 and the third light-transmitting layer.

[0282] In some optional embodiments, before the step of preparing the display function layer 24 on the substrate 100, the method further includes:

[0283] A light-transmitting metal material layer is deposited on a side of the isolation structure facing away from the substrate, and the light-transmitting metal material is wet-etched to form an overlapping portion, which overlaps a side of the isolation structure facing the isolation opening.

[0284] In these optional embodiments, the overlapping portion 250 is arranged on the side of the isolation structure 300 facing the isolation opening 301, so that the third light-transmitting layer 331 and the second electrode 230 can be electrically connected through the overlapping portion 250 to improve the overlapping performance of the second electrode 230 and the third light-transmitting layer 331.

[0285] Of course, when the light-transmitting metal material is wet-etched to form the overlapping portion 250 , the deposited light-transmitting metal material layer can be retained on the side of the isolation structure 300 facing away from the substrate 100 without affecting its light-transmitting performance.

[0286] While the embodiments described above are not exhaustive, they do not limit the invention to the specific embodiments described. Clearly, numerous modifications and variations are possible based on the above description. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better utilize the present invention and its modifications. The present invention is limited only by the claims and their full scope and equivalents.

[0287] In some embodiments of the present disclosure, some film layers in the light-emitting unit, such as the light-emitting layer, can be prepared using a non-evaporation method such as inkjet printing. The specific method can be selected according to the material of these film layers. For example, when these film layers are made of polymer materials and are not suitable for evaporation, inkjet printing can be used to prepare them.

Claims

1. A display panel, comprising: substrate; An isolation structure layer, located on the substrate, wherein the isolation structure layer comprises a light-transmitting portion and a plurality of isolation openings; A display function layer, comprising a light emitting device located in the isolation opening; The touch control structure is located on a side of the isolation structure layer away from the substrate.

2. The display panel according to claim 1, wherein: The light-transmitting portion includes a first light-transmitting opening, the isolation structure layer includes an isolation structure, the isolation structure defines the isolation opening, and the first light-transmitting opening is arranged in the isolation structure.

3. The display panel according to claim 2, wherein: Along the light emitting direction of the light emitting device, the first light-transmitting opening penetrates the isolation structure, and the first light-transmitting opening is spaced apart from the isolation opening.

4. The display panel according to claim 2, wherein: The display panel includes a first area, the light-transmitting portion is disposed in the first area, and a ratio of an area of ​​an orthographic projection of the first light-transmitting opening on the substrate to an area of ​​an orthographic projection of the first area on the substrate is not less than 1%.

5. The display panel according to claim 2, wherein: The display panel includes a first area, the light-transmitting portion is disposed in the first area, and in the first area, a ratio of an area of ​​an orthographic projection of the light-transmitting portion on the substrate to an area of ​​an orthographic projection of the isolation structure on the substrate is 1.50%-9.50%.

6. The display panel according to claim 2, wherein: The transmittance of the first area of ​​the display panel under the test light reaches more than 0.6%.

7. The display panel according to claim 6, wherein: The transmittance of the first area of ​​the display panel under visible light wavelength reaches more than 0.6%.

8. The display panel according to claim 6, wherein: The transmittance of the first area of ​​the display panel under a light wave of 940 nm reaches more than 0.9%.

9. The display panel according to claim 2, wherein: The display panel includes a first area, the light-transmitting portion is disposed in the first area, and the display panel further includes a photosensitive element disposed on a substrate, and an orthographic projection of the photosensitive element on the substrate at least partially overlaps with an orthographic projection of the first area on the substrate.

10. The display panel according to claim 2, wherein: The isolation structure includes a first isolation portion and a second isolation portion that are arranged to intersect each other, and the first light-transmitting opening is arranged at the intersection of the first isolation portion and the second isolation portion.

11. The display panel according to claim 2, wherein: The isolation structure comprises a first isolation portion extending along a first direction, the first light-transmitting opening is arranged in the first isolation portion and extends along a length direction of the first isolation portion; The first light-transmitting opening is circular, polygonal, rectangular or irregular in shape.

12. The display panel according to claim 2, wherein: The first light-transmitting opening is spaced apart from the light-emitting device in the isolation opening, the light-emitting device comprises a first light-emitting device, a second light-emitting device and a third light-emitting device, and the first light-emitting device is adjacent to the first light-transmitting opening; The wavelengths of the emitted lights of the first light-emitting device, the second light-emitting device and the third light-emitting device decrease successively; the lengths of the first light-emitting device, the second light-emitting device and the third light-emitting device in the column arrangement direction are not equal and increase successively; the areas of the first light-transmitting openings corresponding to the first light-emitting device, the second light-emitting device and the third light-emitting device respectively decrease successively and are connected.

13. The display panel according to claim 2, wherein: The display panel further comprises a second electrode layer located on a side of the display function layer away from the substrate, the second electrode layer comprising second electrodes spaced apart from each other and located in each of the isolation openings, and The isolation structure includes a first isolation layer and a second isolation layer stacked together, the first isolation layer is located between the substrate and the second isolation layer, the orthographic projection of the first isolation layer on the substrate is located within the orthographic projection of the second isolation layer on the substrate, and the first isolation layer is electrically connected to the second electrode.

14. The display panel according to claim 13, wherein: The isolation structure further includes a third isolation layer, which is disposed on a side of the first isolation layer close to the substrate, and an orthographic projection of the first isolation layer on the substrate is located within an orthographic projection of the third isolation layer on the substrate.

15. The display panel according to claim 2, further comprising: The first transparent filling portion is filled in the first light-transmitting opening.

16. The display panel according to claim 2, wherein: The display function layer includes an organic material layer and a second electrode layer, and a portion of the organic material layer and a portion of the second electrode layer are disposed in the first light-transmitting opening.

17. The display panel according to claim 2, wherein: The substrate comprises: substrate; The array layer is located on a side of the substrate close to the display function layer, and the array layer includes a first wiring, and an orthographic projection of the first wiring on the substrate does not overlap or partially overlaps with an orthographic projection of the first light-transmitting opening on the substrate.

18. The display panel according to claim 2, wherein: The substrate comprises a second light-transmitting opening provided on the substrate, wherein the second light-transmitting opening is communicated with the first light-transmitting opening; An orthographic projection of the second light-transmitting opening on the substrate at least partially overlaps with an orthographic projection of the first light-transmitting opening on the substrate.

19. The display panel according to claim 1, wherein: The light-transmitting portion is made of a light-transmitting material and defines the isolation opening.

20. The display panel according to claim 19, wherein: The transmittance of the light-transmitting portion under test light is greater than 0.6%.

21. The display panel according to claim 19, wherein: The light-transmitting portion comprises a first light-transmitting layer and a second light-transmitting layer stacked together, the first light-transmitting layer is located between the substrate and the second light-transmitting layer, and the orthographic projection of the first light-transmitting layer on the substrate is located within the orthographic projection of the second light-transmitting layer on the substrate; The first light-transmitting layer and the second light-transmitting layer include a light-transmitting conductive material, or the second light-transmitting layer includes the light-transmitting conductive material, and the first light-transmitting layer includes at least one of a transparent organic layer and a transparent inorganic layer. The light-transmitting conductive material includes at least one of indium tin oxide, indium zinc oxide, aluminum zinc oxide, silver-doped indium tin oxide, and silver-doped indium zinc oxide.

22. The display panel according to claim 1, wherein: The isolation structure layer further includes an isolation structure, and the isolation structure surrounds at least a portion of the light-transmitting portion.

23. The display panel according to claim 1, wherein: The display panel further includes: a pixel defining layer, located between the isolation structure layer and the substrate, and comprising a plurality of fourth openings for defining the light-emitting device, wherein the orthographic projections of the isolation openings on the substrate at least partially overlap with the orthographic projections of the fourth openings on the substrate, and the fourth openings expose the first electrode; An orthographic projection of the isolation structure layer on the substrate at least partially overlaps with an orthographic projection of the pixel definition layer on the substrate.

24. The display panel according to claim 1, wherein: Also includes: An encapsulation layer, the encapsulation layer is located on a side of the isolation structure layer and the display function layer away from the substrate; the encapsulation layer comprises a first encapsulation layer, a second encapsulation layer and a third encapsulation layer which are sequentially stacked in a direction away from the substrate; The light-transmitting portion includes a first light-transmitting opening, the isolation structure layer includes an isolation structure, and the first light-transmitting opening is arranged in the isolation structure; A portion of the second packaging layer is disposed in the first light-transmitting opening.

25. The display panel according to claim 1, wherein: It also includes a touch electrode layer, which includes a plurality of touch electrodes. The touch electrodes define at least one touch opening, and the orthographic projection of the touch opening on the substrate at least partially overlaps with the orthographic projection of the light-transmitting portion on the substrate.

26. A display panel, comprising: substrate; An isolation structure layer is located on the substrate, the isolation structure layer includes an isolation structure and a plurality of isolation openings, the isolation structure is provided with a light-transmitting portion, the isolation structure includes a first isolation layer and a second isolation layer that are stacked, A first isolation layer is located between the substrate and the second isolation layer, the first isolation layer comprises a first end close to the second isolation layer and a second end away from the second isolation layer, and an orthographic projection of the first end on the substrate is located within an orthographic projection of the second end on the substrate; The display function layer includes a light emitting device located in the isolation opening.

27. A display panel comprising a first area, wherein: The display panel comprises: substrate; A display function layer, located on the substrate and at least partially located in the first region, the display function layer comprising a plurality of light emitting devices, each of the light emitting devices having a light emitting unit; and An isolation structure layer is located on the substrate and encloses a plurality of isolation openings, wherein at least one light-emitting device is arranged in each of the isolation openings, the isolation structure layer isolates adjacent light-emitting units, and a portion of the isolation structure layer located in the first area is provided with at least one first light-transmitting opening so that the area of ​​the display panel where the first light-transmitting openings are distributed is light-transmitting.

28. The display panel according to claim 27, wherein: In the first area, all the first light-transmitting openings are arranged adjacent to the first light-emitting device. Preferably, in the first area, the second light-emitting device and the third light-emitting device have the same length in the column arrangement direction, and the length of the second light-emitting device in the column arrangement direction is greater than the length of the first light-emitting device in the column arrangement direction; or, In the first area, all the first light-transmitting openings are arranged adjacent to the first light-emitting devices and the second light-emitting devices; along the column arrangement direction of the first light-emitting devices, the first light-emitting devices and the adjacent first light-transmitting openings are arranged alternately in sequence, and along the column arrangement direction of the second light-emitting devices, the second light-emitting devices and the adjacent first light-transmitting openings are arranged alternately in sequence; the first light-transmitting openings respectively corresponding to the first light-emitting devices and the second light-emitting devices and adjacent to each other are in communication; or, In the first area, the first light-emitting device, the second light-emitting device and the third light-emitting device are all arranged adjacent to the first light-transmitting opening; along the column arrangement direction of the second light-emitting devices, the second light-emitting devices and the corresponding first light-transmitting openings are arranged alternately in sequence, and / or, along the column arrangement direction of the third light-emitting devices, the third light-emitting devices and the corresponding first light-transmitting openings are arranged alternately in sequence; and the first light-transmitting openings respectively corresponding to the first light-emitting device, the second light-emitting device and the third light-emitting device and adjacent to each other are in communication; The display panel further includes a second area, the second area surrounds at least a portion of the first area, and the light transmittance of the second area is lower than the light transmittance of the first area.

29. A display device comprising an identification device and a display panel according to any one of claims 1 to 28, wherein: The orthographic projection of the identification device on the substrate at least partially overlaps with the orthographic projection of the light-transmitting portion on the substrate.

30. The display device according to claim 29, wherein: The identification device includes a fingerprint identification sensor and / or a camera, and the identification device is located on a side of the substrate away from the display function layer or inside the substrate.

31. A method for preparing a display panel, comprising: preparing a substrate; preparing an isolation structure on the substrate, wherein the isolation structure defines an isolation opening; Preparing a display function layer on the substrate, wherein the display function layer includes a light emitting device located in the isolation opening; Preparing a first light-transmitting opening on the isolation structure; or preparing a substrate; Preparing an isolation structure on the substrate, wherein the isolation structure defines an isolation opening and a first light-transmitting opening; A display function layer is prepared on the substrate, wherein the display function layer includes a light emitting device located in the isolation opening.

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