Display panel mother board, display panel and display device

Abstract

The utility model discloses a display panel mother board, a display panel and a display device, and relates to the technical field of display. The display panel mother board comprises a mother board substrate, a plurality of display panels located in a plurality of panel areas, a test element group located in an invalid area and a second supporting structure located in the invalid area. The second sub-display area of the display area of the display panel is provided with a first supporting structure. Therefore, the PT formed by material falling due to relative displacement between the mask and the first supporting structure in the evaporation process is closer to the second sub-display area. The part, located in the second sub-display area, of the packaging film layer is thicker, so that the PT can be prevented from puncturing the packaging film layer, the packaging effect of the packaging film layer is ensured, and the yield and the display effect of the display panel are improved. Moreover, the first supporting structure and the second supporting structure share the mask used in the supporting evaporation process, so that the supporting effect on the mask can be ensured, and the preparation yield of the display panel mother board is improved.

Description

TECHNICAL FIELD

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

[0002] The display panel mother board includes a plurality of display panels, and a test element group located in the invalid area between adjacent display panels. The test element group is used to detect the circuit connection and performance of the display panel. The invalid area is a to-be-peeled area of the display panel mother board, which will be cut off after the manufacturing process of the display panel mother board is completed to form a plurality of display panels.

[0003] In the related art, the display panel mother board includes a support layer (PS), which can be used to support a mask used in the evaporation process during the preparation of the display panel mother board, so as to ensure that the circuit in the display panel is not damaged.

[0004] However, the mask may move relative to the support layer, and thus the material formed on the support layer may fall off to form particles (PT). The presence of the particles may cause the display panel to fail to be packaged, and the yield of the display panel is low. Utility model content

[0005] The present application provides a display panel mother board, a display panel and a display device, which can solve the problem of low yield of the display panel in the related art. The technical solution is as follows:

[0006] In one aspect, a display panel mother board is provided, which includes:

[0007] A mother board substrate, the mother board substrate includes a plurality of panel regions and an invalid region located between adjacent panel regions;

[0008] A plurality of display panels, the plurality of display panels and the plurality of panel regions correspond one by one, each display panel is located in a corresponding panel region; the display panel includes a display region, and a peripheral region surrounding the display region, the display region includes a first sub-display region, a second sub-display region and a third sub-display region arranged along a first direction, the peripheral region includes a binding region, the binding region is located on a side of the third sub-display region away from the first sub-display region; the display panel includes a plurality of light emitting units located in the display region, a plurality of first support structures located in the second sub-display region, and an encapsulation film layer located on a side of the plurality of light emitting units and the plurality of first support structures away from the mother board substrate; the thickness of the encapsulation film layer located in part of the first sub-display region and the thickness of the encapsulation film layer located in part of the third sub-display region are less than the thickness of the encapsulation film layer located in part of the second sub-display region;

[0009] a test element group located in the ineffective area, the test element group being connected with the display panel;

[0010] and a second support structure located in the ineffective area, and the second support structure being located close to the first sub-display area of the test element group.

[0011] Optionally, the plurality of first support structures comprises a plurality of support groups arranged along the first direction, the plurality of support groups comprising a plurality of first support groups and a plurality of second support groups, the plurality of first support groups and the plurality of second support groups being arranged alternately along the first direction.

[0012] The first support group comprises a plurality of first sub-support portions arranged along a second direction, and the second support group comprises a plurality of second sub-support portions arranged along the second direction, the plurality of first sub-support portions in the first support group and the plurality of second sub-support portions in the second support group being arranged in a staggered manner along the second direction.

[0013] The second direction and the first direction intersect.

[0014] Optionally, the width of the first sub-display area along the first direction and the width of the third sub-display area along the first direction are greater than or equal to the distance between two adjacent support groups along the first direction.

[0015] Optionally, the distance between two adjacent first support groups along the first direction is equal to the distance between two adjacent second support groups along the first direction.

[0016] The width of the third sub-display area along the first direction is greater than or equal to the distance between two adjacent first support groups along the first direction.

[0017] The distance between two adjacent first support groups along the first direction is equal to the distance between two adjacent second support groups along the first direction.

[0018] The width of the third sub-display area along the first direction is greater than or equal to the distance between the first first support group and the second first support group along the first direction.

[0019] The distance between the first first support group and the second first support group along the first direction is equal to the distance between two adjacent first support groups along the first direction.

[0020] The width of the third sub-display area along the first direction is greater than or equal to the distance between the first first support group and the second first support group along the first direction.

[0021] Optionally, the distance between two adjacent first support groups along the first direction is equal to the distance between two adjacent second support groups along the first direction.

[0022] The width of the third sub-display region along the first direction is greater than or equal to the distance between the first first support group and the second first support group along the first direction.

[0023] The first first support group and the second first support group have, between them, a first second support group, a third first support group, a second second support group, a fourth first support group and a third second support group arranged along the first direction.

[0024] Optionally, the width of the first sub-display region along the first direction is greater than or equal to the distance between the first first support group and the second first support group along the first direction.

[0025] Optionally, the width of the first sub-display region along the first direction is greater than or equal to the distance between two adjacent first support groups along the first direction.

[0026] Optionally, the distance between two adjacent first support groups along the first direction is equal to the distance between two adjacent second support groups along the first direction.

[0027] Optionally, the test element group comprises a first test portion and a second test portion.

[0028] The distance between the first test portion and the display panel is greater than the distance between the second test portion and the display panel.

[0029] The second support structure comprises a first portion and a second portion, the first portion is located between the first test portion and the display panel, and the second portion is located between the second test portion and the display panel; the width of the first portion along the first direction is greater than the width of the second portion along the first direction.

[0030] Optionally, the first portion comprises at least one strip-shaped third sub-support portion arranged along the first direction and extending along the second direction.

[0031] Optionally, the first portion comprises a plurality of third sub-support portions arranged along the first direction and extending along the second direction.

[0032] Optionally, the first portion comprises two third sub-support portions arranged along the first direction and extending along the second direction; or,

[0033] The first portion comprises four third sub-support portions arranged along the first direction and extending along the second direction.

[0034] Optionally, the second portion comprises at least one strip-shaped fourth sub-supporting part arranged along the first direction and extending along the second direction.

[0035] Optionally, the first portion comprises a first main body part and a first protruding part between the first main body part and the first testing part.

[0036] The second portion comprises a second main body part and a second protruding part between the second main body part and the second testing part.

[0037] The first main body part and the second main body part are an integral structure.

[0038] Optionally, at least part of the boundary of the first protruding part and at least part of the boundary of the second protruding part are in a circular arc shape.

[0039] In another aspect, a display panel is provided, which is obtained by cutting the display panel motherboard in the above aspect.

[0040] Optionally, the display panel comprises:

[0041] A substrate, comprising a display area and a peripheral area surrounding the display area, the display area comprising a first sub-display area, a second sub-display area and a third sub-display area arranged along a first direction;

[0042] A plurality of light emitting units in the display area;

[0043] A plurality of first supporting structures in the second sub-display area, a projection of the first supporting structure on the substrate being located in a space between adjacent light emitting units on the substrate;

[0044] And an encapsulation film layer on a side of the plurality of light emitting units and the plurality of first supporting structures away from the substrate;

[0045] The thickness of the encapsulation film layer in the first sub-display area and the thickness of the encapsulation film layer in the third sub-display area are less than the thickness of the encapsulation film layer in the second sub-display area.

[0046] In yet another aspect, a display device is provided, comprising a power supply component and a display panel as in the above aspect.

[0047] The power supply component and the display panel are connected, and the power supply component is configured to supply power to the display panel.

[0048] The technical scheme provided in the application has at least the following beneficial effects:

[0049] The application provides a display panel mother board, a display panel and a display device. The display panel mother board comprises a mother board substrate, a plurality of display panels located in a plurality of panel regions, a test element group located in an invalid region and a second support structure located in the invalid region. A second sub-display region of a display region of the display panel is provided with a first support structure. Thus, the PT formed by the material falling due to the relative displacement of the mask and the first support structure in the evaporation process is closer to the second sub-display region. Since the thickness of the part of the encapsulation film layer located in the second sub-display region is thicker, the PT can be prevented from piercing the encapsulation film layer, the encapsulation effect of the encapsulation film layer is ensured, and the yield and display effect of the display panel are improved. Moreover, the mask used in the support evaporation process is shared by the first support structure and the second support structure, so that the support effect of the mask is ensured, and the yield of the display panel mother board is improved. BRIEF DESCRIPTION OF DRAWINGS

[0050] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort.

[0051] Figure 1 is a schematic diagram of the upward warping of the mask in the related art;

[0052] Figure 2 is a schematic diagram of the mask and the conductive layer in the display panel forming a capacitor in the related art;

[0053] Figure 3 is a schematic diagram of encapsulation failure in the related art;

[0054] Figure 4 is a structural schematic diagram of a display panel mother board provided by an embodiment of the application;

[0055] Figure 5 is a partial schematic diagram of a display panel mother board provided by an embodiment of the application;

[0056] Figure 6 is a schematic diagram of a display panel in a display panel mother board provided by an embodiment of the application;

[0057] Figure 7 is Figure 5 is a partial schematic diagram of an A region;

[0058] Figure 8 is Figure 7 is a schematic diagram of an invalid region in the display panel mother board;

[0059] Figure 9 is a partial top view of a display panel located in the second sub-display region and the first sub-display region according to an embodiment of the present application;

[0060] Figure 10 is a partial top view of a display panel located in the second sub-display region and the third sub-display region according to an embodiment of the present application;

[0061] Figure 11 is a partial cross-sectional view of a display panel located in the second sub-display region according to an embodiment of the present application;

[0062] Figure 12 is Figure 5 is another partial schematic view of the A region;

[0063] Figure 13 is a partial top view of a display panel located in the second sub-display region according to an embodiment of the present application;

[0064] Figure 14 is Figure 5 is yet another partial schematic view of the A region;

[0065] Figure 15 is Figure 5 is still another partial schematic view of the A region;

[0066] Figure 16 is Figure 5 is yet another partial schematic view of the A region;

[0067] Figure 17 is Figure 7 is another schematic view of the invalid region in the A region;

[0068] Figure 18 is Figure 7 is yet another schematic view of the invalid region in the A region;

[0069] Figure 19 is Figure 7 is still another schematic view of the invalid region in the A region;

[0070] Figure 20 is a partial schematic view of a second support structure according to an embodiment of the present application;

[0071] Figure 21 is another partial schematic view of a second support structure according to an embodiment of the present application;

[0072] Figure 22 is yet another partial schematic view of a second support structure according to an embodiment of the present application;

[0073] Figure 23 isFigure 7 Another schematic view of the invalid region;

[0074] Figure 24 Another schematic view of the invalid region;

[0075] Figure 25 Another schematic view of the invalid region;

[0076] Figure 26 Another schematic view of the invalid region; Figure 7 Another schematic view of the invalid region;

[0077] Figure 27 Another schematic view of the invalid region;

[0078] Figure 28 Another schematic view of the invalid region; Figure 7 Another schematic view of the invalid region;

[0079] Figure 29 Another schematic view of the invalid region; Figure 7 Another schematic view of the invalid region;

[0080] Figure 30 Another schematic view of the invalid region;

[0081] Figure 31 Another schematic view of the invalid region;

[0082] Figure 32 Another schematic view of the invalid region;

[0083] Figure 33 Another schematic view of the invalid region;

[0084] Figure 34 Another schematic view of the invalid region;

[0085] Figure 35 Another schematic view of the invalid region;

[0086] Figure 36 Another schematic view of the invalid region;

[0087] Figure 37 Another schematic view of the invalid region;

[0088] Figure 38 is a schematic diagram of a thickness relationship of IJP layers in different positions provided by an embodiment of the present application;

[0089] Figure 39 is a schematic diagram of a structure of a display panel provided by an embodiment of the present application;

[0090] Figure 40 is a schematic diagram of a structure of a display device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0091] In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0092] With the continuous progress of science and technology and the rapid development of flexible display products, the market share of flexible display products is also gradually increasing. Moreover, the terminal market has increasingly high quality requirements for flexible display panels, which promotes the need for continuous improvement in the design of flexible display panels to meet market demand, and there are very strict reliability test regulations in the factory to meet the quality requirements of terminal customers. Due to the complexity of the display panel manufacturing process and the strictness of the reliability test, higher requirements are put forward for the packaging of the display panel, and the existence of particles with high longitudinal height (denoted as H-Z PT) easily causes the packaging of the display panel to fail to occur GDS (black spots gradually grow over time), causing reliability risks, so strict control of PT is needed.

[0093] H (height) -Z (longitudinal) PT refers to PT with a very large longitudinal height, which is generated in the evaporation (EV) process. The display panel 102 includes a support layer (PS) 05, which is used to support the fine metal mask 04 (FMM 041 and F-mask 042) in the EV process, to ensure that the circuit of the thin film transistor (TFT) in the display panel 102 is not damaged during the subsequent process.

[0094] Referring to Figure 1 During the evaporation process, the light-emitting (EL) material is evaporated above the PS 05, and the half-etching boundary of the F-mask 042 is easily warped upward under the action of magnetic force, causing the FMM 041 to locally slightly wrinkle and move relative to the PS, and then scratch the EL material and drop it on the PS 05. The EL material dropped on the PS forms PT. Figure 1 01 and 02 are parts of evaporation equipment, 03 represents a glass substrate (which can be a mother board substrate 101), and 06 represents a light-emitting area.

[0095] Referring to Figure 2Because the open mask 07 has a half-etched area in the display area 102a of the display panel 102, the tip of the open mask will form a capacitor with the conductive layer (such as the anode layer 08) in the display panel 102. After evaporation, when the open mask 07 separates from the display panel 102, the tip of the open mask 07 discharges, generating electrostatic discharge (ESD). The presence of ESD will damage the EL material to form a physical platen (PT), and the ESD will also cause the PT to stand upright, forming a high-frequency physical platen (HZ PT). (Reference) Figure 3 The presence of HZ PT will lift the encapsulation film layer 102309 after the encapsulation (EN) process, causing encapsulation failure and GDS, which greatly increases the reliability risk of the display panel 102, resulting in poor yield and poor display effect of the display panel 102. Figure 3 The 10 in the figure represents the driving circuit layer and the light-emitting device layer in the display panel 102.

[0096] Fine metal masks (MM and F-masks) can be used to form the light-emitting layer of the light-emitting units in a display panel. Open masks can be used to form common film layers of the light-emitting units in a display panel, such as the hole injection layer, hole transport layer, electron transport layer, electron injection layer, and cathode layer of the light-emitting units.

[0097] Figure 4 This is a schematic diagram of the structure of a display panel motherboard provided in an embodiment of this application. Figure 5 This is a partial schematic diagram of the display panel motherboard provided in an embodiment of this application. Figure 6 This is a schematic diagram of a display panel in a display panel motherboard provided in an embodiment of this application. Figure 7 yes Figure 5 A partial schematic diagram of area A. Figure 8 yes Figure 7 A schematic diagram of the invalid region. (Combined with...) Figure 4 to Figure 8 The display panel motherboard 100 includes: a motherboard substrate 101, a plurality of display panels 102, a test element group 103, and a second support structure 104.

[0098] The motherboard substrate 101 includes multiple panel areas (not shown) and invalid areas 101a located between adjacent panel areas. A test element group 103 is located in the invalid area 101a and is connected to the display panel 102 for testing the performance of the display panel 102. The multiple display panels 102 correspond one-to-one with the multiple panel areas, with each display panel 102 located in its corresponding panel area. (Reference) Figure 6The display panel 102 includes a display area 102a and a peripheral area 102b surrounding the display area 102a. The display area 102a includes a first sub-display area 102a1, a second sub-display area 102a2 and a third sub-display area 102a3 arranged along a first direction X. The peripheral area 102b includes a binding area 102b1. The binding area 102b1 is located on a side of the third sub-display area 102a3 away from the first sub-display area 102a1.

[0099] Generally, the side of the peripheral area 102b of the display panel 102 where the binding area 102b1 is located is the bottom of the display panel 102, and the other side of the peripheral area 102b of the display panel 102 opposite to the binding area 102b1 is the top of the display panel 102. In this case, the first sub-display area 102a1 can be a part of the display area 102a close to the top of the display panel 102, the third sub-display area 102a3 can be a part of the display area 102a close to the bottom of the display panel 102, and the second sub-display area 102a2 is a part of the display area 102a between the top and the bottom of the display panel 102.

[0100] Figure 9 is a partial top view of a display panel provided by an embodiment of the present application, where the display panel is located in the second sub-display area and the first sub-display area. Figure 10 is a partial top view of a display panel provided by an embodiment of the present application, where the display panel is located in the second sub-display area and the third sub-display area. Figure 11 is a partial cross-sectional view of a display panel provided by an embodiment of the present application, where the display panel is located in the second sub-display area. In combination with Figure 9 to Figure 11 The display panel 102 includes a plurality of light emitting units 1021 located in the display area 102a, a plurality of first support structures 1022 located in the second sub-display area 102a2, and an encapsulation film layer 1023 located on a side of the plurality of light emitting units 1021 and the plurality of first support structures 1022 away from the mother board substrate 101.

[0101] The thickness of the encapsulation film layer 1023 in the part of the first sub-display area 102a1 and the thickness of the encapsulation film layer 1023 in the part of the third sub-display area 102a3 are less than the thickness of the encapsulation film layer 1023 in the part of the second sub-display area 102a2.

[0102] In the embodiment of the present application, since the first support structure 1022 is located in the second sub-display area 102a2, and is not located in the first sub-display area 102a1 and the third sub-display area 102a3, the display panel 102 is free of the support structure in the first sub-display area 102a1 and the third sub-display area 102a3. Further, even if the relative displacement between the mask and the first support structure 1022 occurs in the evaporation process to cause the material to drop and form a PT, the PT can be closer to the middle of the display area 102a (such as the second sub-display area 102a2). Since the thickness of the encapsulation film layer 1023 in the part of the second sub-display area 102a2 is thicker, even if the height of the PT is higher, the encapsulation film layer 1023 can be avoided from being pierced. Thus, the encapsulation effect of the encapsulation film layer 1023 can be ensured, the problem of GDS can be avoided, the reliability of the display panel 102 can be ensured, and the yield and display effect of the display panel 102 can be improved.

[0103] Since the first sub-display area 102a1 and the third sub-display area 102a3 in the display area 102a are not provided with the first support structure 1022, the support performance of the mask used in the evaporation process is poor, and large deformation between the adjacent two display panels 102 is likely to occur, which affects the stress distribution. Therefore, with reference to Figure 8 , the display panel mother board can include a second support structure 104 located in the invalid area 101a. The second support structure 104 can be located close to the first sub-display area 102a1 of the test element group 103. That is, by providing the second support structure 104 in the invalid area 101a, the weakened support effect after the first support structure 1022 in the first sub-display area 102a1 and the third sub-display area 102a3 is removed is balanced, and the preparation of the display panel 102 is ensured.

[0104] In summary, the embodiment of the present application provides a display panel mother board, which includes a mother board substrate, a plurality of display panels located in a plurality of panel areas, a test element group located in an invalid area, and a second support structure located in the invalid area. The third sub-display area of the display area of the display panel close to the bonding area, and the first sub-display area away from the bonding area are not provided with the first support structure, and the second sub-display area of the display area is provided with the first support structure. Even if the relative displacement between the mask and the first support structure occurs in the evaporation process to cause the material to drop and form a PT, the PT can be closer to the second sub-display area. Since the thickness of the encapsulation film layer in the part of the second sub-display area is thicker, even if the height of the PT is higher, the encapsulation film layer can be avoided from being pierced, the encapsulation effect of the encapsulation film layer is ensured, and the yield and display effect of the display panel are improved. Further, by the first support structure and the second support structure sharing the mask used in the evaporation process, the support effect on the mask can be ensured, and the preparation yield of the display panel mother board is improved.

[0105] Reference Figure 7 As can be seen, the plurality of first support structures 1022 includes a plurality of support groups 1022z arranged along the first direction X. The plurality of support groups 1022z includes a plurality of first support groups 1022z1 and a plurality of second support groups 1022z2. The plurality of first support groups 1022z1 and the plurality of second support groups 1022z2 are alternately arranged along the first direction X.

[0106] The first support group 1022z1 includes a plurality of first sub-support portions 1022z11 arranged along the second direction Y. The second support group 1022z2 includes a plurality of second sub-support portions z21 arranged along the second direction Y. The plurality of first sub-support portions 1022z11 in the first support group 1022z1 and the plurality of second sub-support portions z21 in the second support group 1022z2 arranged adjacent to each other along the first direction X are arranged staggered along the second direction Y. The second direction Y and the first direction X are intersected. Optionally, the second direction Y and the first direction X are perpendicular. For example, the first direction X can be a pixel column direction of the display panel 102, and the second direction Y can be a pixel row direction of the display panel 102.

[0107] Optionally, the first sub-support portion 1022z11 in the first support group 1022z1 has a normal projection on a reference plane between normal projections of two adjacent second sub-support portions z21 in the second support group 1022z2 on the reference plane. The reference plane can be a surface perpendicular to the mother board substrate 101 and parallel to the second direction Y.

[0108] For example, the first sub-support portion 1022z11 in the first support group 1022z1 has a normal projection on a reference plane at a middle between normal projections of two adjacent second sub-support portions z21 in the second support group 1022z2 on the reference plane.

[0109] In the embodiments of the present application, the width of the first sub-display area 102a1 along the first direction X and the width of the third sub-display area 102a3 along the first direction X are both greater than or equal to the distance between two adjacent support groups 1022z along the first direction X. The distance between two adjacent support groups 1022z along the first direction X can be used to represent the space required to be occupied by a support group 1022z. Since the plurality of first support groups 1022z1 and the plurality of second support groups 1022z2 are alternately arranged along the first direction X, one of the two adjacent support groups 1022z is the first support group 1022z1, and the other is the second support group 1022z2.

[0110] That is, the width of the first sub-display area 102a1 along the first direction X and the width of the third sub-display area 102a3 along the first direction X are both greater than or equal to the distance between two adjacent groups of support groups 1022z along the first direction X, which can be used to indicate that the width of the first sub-display area 102a1 along the first direction X and the width of the third sub-display area 102a3 along the first direction X are at least used to set one group of support groups 1022z. Or it can be understood that the area close to the binding area 102b1 in the display area 102a and the area away from the binding area 102b1 are originally provided with support groups 1022z. The scheme of the embodiment of the present application removes at least one group of support groups 1022z originally provided in the area close to the binding area 102b1 and the area away from the binding area 102b1 in the display area 102a to obtain the first sub-display area 102a1 and the third sub-display area 102a3 without support groups 1022z.

[0111] In the embodiment of the present application, it is assumed that the distance between two adjacent groups of first support groups 1022z1 along the first direction X is equal to the distance between two adjacent groups of second support groups 1022z2 along the first direction X. Referring to Figure 7 , the width of the first sub-display area 102a1 along the first direction X is greater than or equal to the distance between two adjacent groups of first support groups 1022z1 along the first direction X. The width of the third sub-display area 102a3 along the first direction X is greater than or equal to the distance between two adjacent groups of first support groups 1022z1 along the first direction X. Since the plurality of first support groups 1022z1 and the plurality of second support groups 1022z2 are arranged alternately in the first direction X, there is a second support group 1022z2 between two adjacent groups of first support groups 1022z1. The distance d1 between two adjacent groups of first support groups 1022z1 along the first direction X can be used to indicate the required setting space occupied by two groups of support groups 1022z.

[0112] That is, the width of the first sub-display area 102a1 along the first direction X and the width of the third sub-display area 102a3 along the first direction X are both greater than or equal to the distance d1 of the two adjacent groups of first support groups 1022z1 along the first direction X, which can be used to indicate that the width of the first sub-display area 102a1 along the first direction X and the width of the third sub-display area 102a3 along the first direction X are at least used to set two groups of support groups 1022z. Or it can be understood that the area close to the binding area 102b1 in the display area 102a and the area away from the binding area 102b1 are originally provided with support groups 1022z, and the scheme of the embodiment of the application removes at least two groups of support groups 1022z originally provided in the area close to the binding area 102b1 and the area away from the binding area 102b1 in the display area 102a to obtain the first sub-display area 102a1 and the third sub-display area 102a3 without the support groups 1022z.

[0113] Suppose the distance of the two adjacent groups of first support groups 1022z1 along the first direction X is not equal to the distance of the two adjacent groups of second support groups 1022z2 along the first direction X, then the width of the first sub-display area 102a1 along the first direction X can be greater than or equal to the target size. The target size can be half of the sum of the distance of the two adjacent groups of first support groups 1022z1 along the first direction X and the distance of the two adjacent groups of first support groups 1022z1 along the first direction X. In this case, the target size can generally represent the setting space required by the two groups of support groups 1022z.

[0114] In the embodiment of the application, it is assumed that the distance of the two adjacent groups of first support groups 1022z1 along the first direction X is equal to the distance of the two adjacent groups of second support groups 1022z2 along the first direction X. Referring to Figure 12 and Figure 13 , the width of the third sub-display area 102a3 along the first direction X is greater than or equal to the distance d2 of the first first support group 1022z1 and the second first support group 1022z1 along the first direction X. The width of the first sub-display area 102a1 along the first direction X is greater than or equal to the distance d1 of the two adjacent groups of first support groups 1022z1 along the first direction X.

[0115] The first first support group 1022z1 and the second first support group 1022z1 are provided with the first second support group 1022z2 arranged along the first direction X between the first first support group 1022z1 and the second first support group 1022z1. That is, three groups of support groups 1022z are arranged between the first first support group 1022z1 and the second first support group 1022z1. In this case, the distance between the first first support group 1022z1 and the second first support group 1022z1 along the first direction X can be used to represent the arrangement space required by four groups of support groups 1022z. Moreover, since the first support groups 1022z1 and the second support groups 1022z2 are arranged alternately along the first direction X, there is a second support group 1022z2 between any two adjacent first support groups 1022z1. The distance between the two adjacent first support groups 1022z1 along the first direction X can be used to represent the arrangement space required by two groups of support groups 1022z. In the embodiment of the present application, the first first support group 1022z1, the second first support group 1022z1 and the third first support group 1022z1 are all first support groups 1022z1, and the first, the second and the third are used to distinguish different first support groups 1022z1. Similarly, the first second support group 1022z2 and the second second support group 1022z2 are both second support groups 1022z2, and the first and the second are used to distinguish different second support groups 1022z2.

[0116] That is, the width d2 of the third sub-display area 102a3 along the first direction X is greater than or equal to the distance between the first first support group 1022z1 and the second first support group 1022z1 along the first direction X, which can be used to represent that the width of the third sub-display area 102a3 along the first direction X can be used to arrange at least four groups of support groups 1022z. Alternatively, it can be understood that the area close to the binding area 102b1 in the display area 102a is originally provided with support groups 1022z. The scheme of the embodiment of the present application removes at least four groups of support groups 1022z originally arranged in the area close to the binding area 102b1 in the display area 102a, to obtain the third sub-display area 102a3 without support groups 1022z.

[0117] The width d1 of the first sub-display region 102a1 along the first direction X is greater than or equal to the distance of the two adjacent first support groups 1022z1 along the first direction X, which can be used to indicate that the width of the first sub-display region 102a1 along the first direction X can be used to set at least two support groups 1022z. Alternatively, it can be understood that the region of the display region 102a away from the binding region 102b1 is originally provided with the support group 1022z, and the scheme of the embodiment of the present application removes at least two support groups 1022z of the region of the display region 102a close to the binding region 102b1 to obtain the first sub-display region 102a1 which is not provided with the support group 1022z.

[0118] Reference Figure 14 The width of the first sub-display region 102a1 along the first direction X is greater than or equal to the distance d2 of the first first support group 1022z1 and the second first support group 1022z1 along the first direction X. In this case, the width of the first sub-display region 102a1 along the first direction X is greater than or equal to the distance d2 of the first first support group 1022z1 and the second first support group 1022z1 along the first direction X, which can be used to indicate that the width of the first sub-display region 102a1 along the first direction X can be used to set at least four support groups 1022z. Alternatively, it can be understood that the region of the display region 102a away from the binding region 102b1 is originally provided with the support group 1022z, and the scheme of the embodiment of the present application removes at least four support groups 1022z originally provided in the region of the display region 102a away from the binding region 102b1 to obtain the first sub-display region 102a1 which is not provided with the support group 1022z.

[0119] In the embodiment of the present application, it is assumed that the distance of the two adjacent first support groups 1022z1 along the first direction X is equal to the distance of the two adjacent second support groups 1022z2 along the first direction X. Reference Figure 15 and Figure 13 The width of the third sub-display region 102a3 along the first direction X is greater than or equal to the distance d3 of the first first support group 1022z1 and the second first support group 1022z1 along the first direction X. The width of the first sub-display region 102a1 along the first direction X is greater than or equal to the distance d1 of the two adjacent first support groups 1022z1 along the first direction X.

[0120] The first first support group 1022z1 and the second first support group 1022z1 are provided with the first second support group 1022z2 arranged along the first direction X. The first first support group 1022z1, the second first support group 1022z1, the third first support group 1022z1, the second second support group 1022z2, and the fourth first support group 1022z1 are arranged along the first direction X. That is, the first first support group 1022z1 and the second first support group 1022z1 are provided with five support groups 1022z. In this case, the distance between the first first support group 1022z1 and the second first support group 1022z1 along the first direction X can be used to represent the setting space required by six support groups 1022z. In addition, since the first support groups 1022z1 and the second support groups 1022z2 are arranged alternately along the first direction X, there is a second support group 1022z2 between any two adjacent first support groups 1022z1. The distance between the two adjacent first support groups 1022z1 along the first direction X can be used to represent the setting space required by two support groups 1022z. In the embodiment of the present application, the first first support group 1022z1, the second first support group 1022z1, the third first support group 1022z1, and the fourth first support group 1022z1 are all first support groups 1022z1, and the first, the second, the third, and the fourth are used to distinguish different first support groups 1022z1. Similarly, the first second support group 1022z2, the second second support group 1022z2, and the third second support group 1022z2 are all second support groups 1022z2, and the first, the second, and the third are used to distinguish different second support groups 1022z2.

[0121] That is, the width of the third sub-display area 102a3 along the first direction X is greater than or equal to the distance between the first first support group 1022z1 and the second first support group 1022z1 along the first direction X, which can be used to represent that the width of the third sub-display area 102a3 along the first direction X can be used to set at least six support groups 1022z. Alternatively, it can be understood that the area close to the binding area 102b1 in the display area 102a is originally provided with support groups 1022z. The scheme of the embodiment of the present application removes at least six support groups originally provided in the area close to the binding area 102b1 in the display area 102a to obtain the third sub-display area 102a3 without support groups 1022z.

[0122] The width of the first sub-display area 102a1 along the first direction X is greater than or equal to the distance d1 of the two adjacent first support groups 1022z1 along the first direction X, which can be used to indicate that the width of the first sub-display area 102a1 along the first direction X can be used to set at least two groups of support groups 1022z. Or it can be understood that the area of the display area 102a away from the binding area 102b1 is originally provided with the support group 1022z, and the scheme of the embodiment of the present application is to remove at least two groups of support groups 1022z in the area of the display area 102a close to the binding area 102b1 to obtain the first sub-display area 102a1 which is not provided with the support group 1022z.

[0123] Reference Figure 16 The width of the first sub-display area 102a1 along the first direction X is greater than or equal to the distance d1 of the two adjacent first support groups 1022z1 along the first direction X, which can be used to indicate that the width of the first sub-display area 102a1 along the first direction X can be used to set at least two groups of support groups 1022z. Or it can be understood that the area of the display area 102a away from the binding area 102b1 is originally provided with the support group 1022z, and the scheme of the embodiment of the present application is to remove at least two groups of support groups 1022z in the area of the display area 102a close to the binding area 102b1 to obtain the first sub-display area 102a1 which is not provided with the support group 1022z.

[0124] The above embodiments are described in detail by taking the example of removing one set of support groups 1022z, two sets of support groups 1022z, four sets of support groups 1022z and six sets of support groups 1022z in the area of the display area 102a far away from the binding area 102b1 to obtain the first sub-display area 102a1, and removing one set of support groups 1022z, two sets of support groups 1022z, four sets of support groups 1022z and six sets of support groups 1022z in the area of the display area 102a close to the binding area 102b1 to obtain the third sub-display area 102a3. Of course, in practice, the number of support groups 1022z removed in the area of the display area 102a far away from the binding area 102b1 and the number of support groups 1022z removed in the area of the display area 102a close to the binding area 102b1 are not limited, for example, three sets of support groups 1022z, five sets of support groups 1022z, seven sets of support groups 1022z or even more sets of support groups 1022z can be removed in the area of the display area 102a far away from the binding area 102b1 to obtain the first sub-display area 102a1, and three sets of support groups 1022z, five sets of support groups 1022z, seven sets of support groups 1022z or even more sets of support groups 1022z can be removed in the area of the display area 102a close to the binding area 102b1 to obtain the third sub-display area 102a3.

[0125] Reference Figure 8 The test element group 103 can include a first test part 1031 and a second test part 1032. The first test part 1031 can refer to a test circuit (denoted as BP TEG) for testing the performance of the driving circuit in the display panel 102, and the second test part 1032 can refer to a test circuit (denoted as TSP TEG) for testing the performance of the touch circuit in the display panel 102.

[0126] Reference Figure 8 The distance d4 between the first test part 1031 and the module cutting path of the display panel 102 is greater than the distance d5 between the second test part 1032 and the module cutting path of the display panel 102. That is, the width of the ineffective area 101a between the first test part 1031 and the display panel 102 is larger, and the width of the ineffective area 101a between the second test part 1032 and the display panel 102 is smaller.

[0127] In order to avoid the influence of the second support structure 104 arranged in the ineffective area 101a on the performance of the test element group 103, the second support structure 104 can be arranged in the ineffective area 101a between the first test part 1031 and the display panel 102, and in the ineffective area 101a between the second test part 1032 and the display panel 102.

[0128] refer to Figure 8 The second support structure 104 includes a first portion 1041 and a second portion 1042. The first portion 1041 is located between the first test portion 1031 and the display panel 102, and the second portion 1042 is located between the second test portion 1032 and the display panel 102. Since the width of the invalid region 101a between the first test portion 1031 and the display panel 102 is different from the width of the invalid region 101a between the second test portion 1032 and the display panel 102, different widths of the first portion 1041 and the second portion 1042 can be used to adapt to invalid regions 101a of different widths. Optionally, the width of the first portion 1041 along the first direction X is greater than the width of the second portion 1042 along the first direction X.

[0129] In this embodiment of the application, the first portion 1041 may include at least one strip-shaped third sub-support portion 10411 arranged along a first direction X and extending along a second direction Y. Optionally, refer to Figure 17 to Figure 19 The first part 1041 includes a strip-shaped third sub-support 10411 and does not have a second support. That is, the width of the second part 1042 can be 0.

[0130] Figure 17 In the first part 1041, the width along the first direction X can be 200 μm (micrometers). Figure 18 In the first part 1041, the width along the first direction X can be 400μm. Figure 19 In the first part 1041, the width along the first direction X can be 600μm.

[0131] for Figure 17 to Figure 19 Regarding the first portion 1041 shown, the width of the first portion 1041 along the first direction X does not need to be specifically limited, as long as the distance between the first portion 1041 and the module cutting channel of the display panel 102, and the distance between the first portion 1041 and the first test portion 1031 meet certain conditions. For example, the width of the first portion 1041 along the first direction X can be arbitrarily chosen as long as the distance between the first portion 1041 and the module cutting channel of the display panel 102 is greater than 100μm, and the distance between the first portion 1041 and the first test portion 1031 is greater than 10μm.

[0132] When the distance between the first part 1041 and the module cutting channel of the display panel 102 is greater than 100μm, and the distance between the first part 1041 and the first test part 1031 is greater than 10μm, it can be guaranteed that the first part 1041 will not affect the first test part 1031 and the display panel 102.

[0133] For example, the first test portion 1031 is located at a distance h1 of 840 μm from the display panel 102, and the second test portion 1032 is located at a distance h2 of 470 μm from the display panel 102. Figure 20 For example, the first portion 1041 has a width of 200 μm along the first direction X, the distance between the first portion 1041 and the first test portion 1031 near the module cutting path of the display panel 102 can be 320 μm, and the distance between the first portion 1041 and the module cutting path of the display panel 102 can be 320 μm. Figure 21 For example, the first portion 1041 has a width of 400 μm along the first direction X, the distance between the first portion 1041 and the first test portion 1031 near the boundary of the display panel 102 can be 220 μm, and the distance between the first portion 1041 and the display panel 102 can be 220 μm. Figure 22 For example, the first portion 1041 has a width of 600 μm along the first direction X, the distance between the first portion 1041 and the first test portion 1031 near the boundary of the display panel 102 can be 120 μm, and the distance between the first portion 1041 and the display panel 102 can be 120 μm.

[0134] In the embodiments of the present application, the first portion 1041 can include a plurality of third sub-support portions 10411 arranged along the first direction X and extending along the second direction Y. The second portion 1042 includes at least one fourth sub-support portion 10421 arranged along the first direction X and extending along the second direction Y. Optionally, referring to Figure 8 and Figure 23 The first portion 1041 includes two third sub-support portions 10411, and the second portion 1042 includes one fourth sub-support portion 10421. In the case where the first portion 1041 includes a plurality of third sub-support portions 10411, the width of the first portion 1041 along the first direction X can refer to the sum of the widths of the plurality of third sub-support portions 10411 along the first direction X.

[0135] For example, the first test portion 1031 is located at a distance h1 of 991 μm from the display panel 102, and the second test portion 1032 is located at a distance h2 of 471 μm from the display panel 102. Figure 24In the first part 1041, the width of each of the two third sub-support portions 10411 along the first direction X is 263 μm, the distance between the two third sub-support portions 10411 is 107 μm, the distance between the third sub-support portion 1041 closer to the first test portion 1031 and the first test portion 1031 is 100 μm, and the distance between the other third sub-support portion 1041 farther from the first test portion 1031 and the display panel 102 is 258 μm. In the second part 1042, the width of each of the fourth sub-support portions 10421 along the first direction X is 51 μm, the distance between the fourth sub-support portion 10421 and the second test portion 1032 is 410 μm, and the distance between the fourth sub-support portion 10421 and the display panel 102 is 10 μm.

[0136] For example, assume that the distance h1 between the first test portion 1031 and the edge of the display panel 102 is 840 μm, and the distance h2 between the second test portion 1032 and the edge of the display panel 102 is 470 μm. Figure 25 In the first part 1041, the width of each of the two third sub-support portions 10411 along the first direction X is 200μm, the distance between the two third sub-support portions 10411 is 240μm, the distance between the third sub-support portion 10411 closer to the first test portion 1031 and the first test portion 1031 is 150μm, and the distance between the other third sub-support portion 10411 farther from the first test portion 1031 and the display panel 102 is 50μm. In the second part 1042, the width of each of the fourth sub-support portions 10421 along the first direction X is 200μm, the distance between the fourth sub-support portion 10421 and the second test portion 1032 is 220μm, and the distance between the fourth sub-support portion 10421 and the display panel 102 is 50μm. Figure 25 In the first part 1041, a third sub-support portion 10411 near the display panel 102 and a fourth sub-support portion 10421 in the second part 1042 can be an integral structure.

[0137] Optional, see reference Figure 26 The first part 1041 includes four strip-shaped third sub-support parts 10411, and the second part 1042 includes one strip-shaped fourth sub-support part 10421.

[0138] For example, the distance h1 between the first test portion 1031 and the display panel 102 is 991 μm, and the distance h2 between the second test portion 1032 and the display panel 102 is 471 μm. Figure 27 For example, the distance h1 between the first test portion 1031 and the display panel 102 is 991 μm, and the distance h2 between the second test portion 1032 and the display panel 102 is 471 μm.

[0139] In the embodiments of the present application, it is referred to Figure 28 and Figure 29 The first portion 1041 includes a first main portion 10412 and a first protruding portion 10413 between the first main portion 10412 and the first test portion 1031. The second portion 1042 includes a second main portion 10422 and a second protruding portion 10423 between the second main portion 10422 and the second test portion 1032. The first main portion 10412 and the second main portion 10422 are an integral structure.

[0140] Optionally, the width of the first portion 1041 along the first direction X is greater than the width of the second portion 1042 along the first direction X, which can mean that the sum of the width of the first main portion 10412 and the width of the first protruding portion 10413 along the first direction X is greater than the sum of the width of the second main portion 10422 and the width of the second protruding portion 10423 along the first direction X.

[0141] For example, the distance h1 between the first test portion 1031 and the display panel 102 is 991 μm, and the distance h2 between the second test portion 1032 and the display panel 102 is 471 μm. Figure 30In the first portion 1041, the width of the first body portion 10412 along the first direction X is 540 μm, the width of the first protruding portion 10413 along the first direction X is 100 μm, the distance between the first protruding portion 10413 and the first test portion 1031 is 150 μm, and the distance between the first body portion 10412 and the display panel 102 is 50 μm. In the second portion 1042, the width of the second body portion 10422 along the first direction X is 90 μm, the width of the second protruding portion 10423 along the first direction X is 60 μm, the distance between the second protruding portion 10423 and the second test portion 1032 is 210 μm, and the distance between the second body portion 10422 and the display panel 102 is 50 μm.

[0142] Figure 31 In the first portion 1041, the width of the first body portion 10412 along the first direction X is 530 μm, the width of the first protruding portion 10413 along the first direction X is 110 μm, the distance between the first protruding portion 10413 and the first test portion 1031 is 150 μm, and the distance between the first body portion 10412 and the display panel 102 is 50 μm. In the second portion 1042, the width of the second body portion 10422 along the first direction X is 90 μm, the width of the second protruding portion 10423 along the first direction X is 60 μm, the distance between the second protruding portion 10423 and the second test portion 1032 is 210 μm, and the distance between the second body portion 10422 and the display panel 102 is 50 μm.

[0143] Optionally, as shown in Figure 28 to Figure 31 The first portion 1041 can include two first protruding portions 10413, and the second portion 1042 can include one second protruding portion 10423.

[0144] Optionally, at least part of the boundary of the first protruding portion 10413 and at least part of the boundary of the second protruding portion 10423 are in the shape of a circular arc. For example, Figure 28 and Figure 30 In the first portion 1041, the boundary of the first protruding portion 10413 close to the first test portion 1031 and the boundary of the second protruding portion 10423 close to the second test portion 1032 are in the shape of a semicircular arc. Figure 28 and Figure 30 The first portion 1041 and the second portion 1042 shown in

[0145] Alternatively, the boundary of the first protruding portion 10413 and the boundary of the second protruding portion 10423 can be a straight line. For example, Figure 29 and Figure 31The first part 1041 and the second part 1042 shown can constitute a second support structure 104 in a cat shape.

[0146] Figure 28 to Figure 31 The second support structure 104 shown can be in a special shape, which is mainly considered to leave as large a blank area as possible without affecting the stress, so as to reduce the influence of the PT on the test element group 103.

[0147] In the embodiment of the present application, since the first sub-display area 102a1 and the third sub-display area 102a3 are not provided with the first support structure 1022, in order to ensure the support effect on the mask used in the evaporation process, the second support structure 104 can be arranged in the invalid area 101a. The specific shape, size and arrangement of the second support structure 104 are not limited in the embodiment of the present application, as long as the test effect of the test element group 103 in the invalid area 101a is not affected.

[0148] Reference Figure 8 , Figure 17 to Figure 19 , Figure 23 , Figure 26 , Figure 28 and Figure 29 , different parts of the test element group 103 are spaced apart in the second direction Y, and therefore the second support structure 104 can further include a block-shaped part 1043 arranged at the spaced-apart position. The embodiment of the present application is not limited in this regard.

[0149] In the embodiment of the present application, the effect of the present application is verified by comparing the simulation results of the prior art scheme and the following six embodiments in the embodiment of the present application.

[0150] Suppose the prior art scheme 1: the support groups 1022z in the areas of the display area 102a close to and far from the binding area 102b1 are not removed.

[0151] The prior art scheme 2: the support groups 1022z in the area of the display area 102a close to the binding area 102b1 are not removed, and two groups of support groups 1022z in the area of the display area 102a far from the binding area 102b1 are removed.

[0152] Embodiment 1: Reference Figure 7 and Figure 32 , two groups of support groups 1022z in the area of the display area 102a close to the binding area 102b1 are removed to obtain a third sub-display area 102a3 without the support groups 1022z, and two groups of support groups 1022z in the area of the display area 102a far from the binding area 102b1 are removed to obtain a first sub-display area 102a1 without the support groups 1022z. Moreover, the second support structure 104 is arranged in the invalid area 101a.Figure 8 The second support structure 104 shown in FIG. 4B. That is, the first portion 1041 of the second support structure 104 includes two third sub-support portions 10411, and the second portion 1042 includes one fourth sub-support portion 10421.

[0153] Embodiment 2: Refer to Figure 15 And Figure 33 , removing six groups of support groups 1022z in the area of the display area 102a close to the binding area 102b1 obtains a third sub-display area 102a3 without support groups 1022z, and removing two groups of support groups 1022z in the area of the display area 102a away from the binding area 102b1 obtains a first sub-display area 102a1 without support groups 1022z. And the invalid area 101a is provided with Figure 8 The second support structure 104 shown in FIG. 4B. That is, the first portion 1041 of the second support structure 104 includes two third sub-support portions 10411, and the second portion 1042 includes one fourth sub-support portion 10421.

[0154] Embodiment 3: Refer to Figure 7 And Figure 34 , removing two groups of support groups 1022z in the area of the display area 102a close to the binding area 102b1 obtains a third sub-display area 102a3 without support groups 1022z, and removing two groups of support groups 1022z in the area of the display area 102a away from the binding area 102b1 obtains a first sub-display area 102a1 without support groups 1022z. And the invalid area 101a is provided with Figure 26 The second support structure 104 shown in FIG. 4B. That is, the first portion 1041 of the second support structure 104 includes two third sub-support portions 10411, and the second portion 1042 includes one fourth sub-support portion 10421.

[0155] Embodiment 4: Refer to Figure 15 And Figure 35 , removing six groups of support groups 1022z in the area of the display area 102a close to the binding area 102b1 obtains a third sub-display area 102a3 without support groups 1022z, and removing two groups of support groups 1022z in the area of the display area 102a away from the binding area 102b1 obtains a first sub-display area 102a1 without support groups 1022z. And the invalid area 101a is provided with Figure 26 The second support structure 104 shown in FIG. 4B. That is, the first portion 1041 of the second support structure 104 includes two third sub-support portions 10411, and the second portion 1042 includes one fourth sub-support portion 10421.

[0156] Embodiment 5: Refer toFigure 12 and Figure 36 , removing four groups of support groups 1022z in the area of the display area 102a close to the binding area 102b1 obtains a third sub-display area 102a3 in which no support group 1022z is arranged, and removing two groups of support groups 1022z in the area of the display area 102a far away from the binding area 102b1 obtains a first sub-display area 102a1 in which no support group 1022z is arranged. And the invalid area 101a is arranged with the second support structure 104 as shown in Figure 8 . That is, the first part 1041 of the second support structure 104 includes two third sub-support parts 10411, and the second part 1042 includes one fourth sub-support part 10421.

[0157] Embodiment 6: referring to Figure 12 and Figure 37 , removing four groups of support groups 1022z in the area of the display area 102a close to the binding area 102b1 obtains a third sub-display area 102a3 in which no support group 1022z is arranged, and removing two groups of support groups 1022z in the area of the display area 102a far away from the binding area 102b1 obtains a first sub-display area 102a1 in which no support group 1022z is arranged. And the invalid area 101a is arranged with the second support structure 104 as shown in Figure 26 . That is, the first part 1041 of the second support structure 104 includes two third sub-support parts 10411, and the second part 1042 includes one fourth sub-support part 10421.

[0158] In Figure 32 to Figure 37 , the pattern of the dashed border represents the removed support group, and the pattern of the realized border represents the non-removed support group. At the same time, since the first support group 1022z1 and the second support group 1022z2 are arranged staggered in the second direction Y, theoretically, the first support group 1022z1 and the second support group 1022z2 cannot be simultaneously embodied in the same cross section. However, in order to facilitate the illustration of the arrangement of the first support group 1022z1 and the second support group 1022z2, the first support group 1022z1 and the second support group 1022z2 are illustrated in the same cross-sectional view. In fact Figure 32 to Figure 37 , it is not a cross-sectional view of a certain fixed section.

[0159] The simulation results of the prior art 1 include: the maximum stress position is the position of the support structure in the area of the display area 102a far away from the binding area 102b1, and the maximum stress is about 11028 MPa (mega pascal). The maximum deformation of the mask is about 20.882 μm (micrometer).

[0160] The simulation results for the prior art 2 include: the maximum stress position is the position of the support structure in the display region 102a near the area edge of the binding region 102b1, and the maximum stress is approximately 52.13 MPa (mega pascal). In addition, the stress borne by the support structure in the display region 102a away from the area edge of the binding region 102b1 is 42.87 MPa. The maximum deformation amount of the mask is approximately 0.13 μm (micrometer).

[0161] The simulation results for the embodiment 1 include: the maximum stress position is the position of the support structure in the display region 102a near the area edge of the binding region 102b1, and the maximum stress is approximately 44.04 MPa. In addition, the stress borne by the support structure in the display region 102a away from the area edge of the binding region 102b1 is 0.136 MPa. The maximum deformation amount of the mask is approximately 0.11 μm.

[0162] The simulation results for the embodiment 2 include: the maximum stress position is the position of the support structure in the display region 102a near the area edge of the binding region 102b1, and the maximum stress is approximately 46.33 MPa. In addition, the stress borne by the support structure in the display region 102a away from the area edge of the binding region 102b1 is 0.136 MPa. The maximum deformation amount of the mask is approximately 0.11 μm.

[0163] The simulation results for the embodiment 3 include: the maximum stress position is the position of the support structure in the display region 102a near the area edge of the binding region 102b1, and the maximum stress is approximately 44.02 MPa. In addition, the stress borne by the support structure in the display region 102a away from the area edge of the binding region 102b1 is 0.136 MPa. The maximum deformation amount of the mask is approximately 0.11 μm.

[0164] The simulation results for the embodiment 4 include: the maximum stress position is the position of the support structure in the display region 102a near the area edge of the binding region 102b1, and the maximum stress is approximately 46.34 MPa. In addition, the stress borne by the support structure in the display region 102a away from the area edge of the binding region 102b1 is 0.136 MPa. The maximum deformation amount of the mask is approximately 0.11 μm.

[0165] The simulation results for the embodiment 5 include: the maximum stress position is the position of the support structure in the display region 102a near the area edge of the binding region 102b1, and the maximum stress is approximately 45.37 MPa. In addition, the stress borne by the support structure in the display region 102a away from the area edge of the binding region 102b1 is 0.137 MPa. The maximum deformation amount of the mask is approximately 0.11 μm.

[0166] The simulation results of the embodiment 6 include: the position of the maximum stress is the position of the support structure in the display area 102a close to the area edge of the binding area 102b1, and the maximum stress is about 45.40 MPa. In addition, the stress borne by the support structure in the display area 102a away from the area edge of the binding area 102b1 is 0.137 MPa. The maximum deformation of the mask is about 0.11 μm.

[0167] Compared with the prior art solutions 1 and 2, the embodiments 1 to 6 remove the support group 1022z in the display area 102a close to the area of the binding area 102b1, and set the second support structure 104 in the invalid area 101a, which can reduce the maximum stress value by 11.11% to 15.50%, and the position of the maximum stress is at the position of the support structure in the display area 102a close to the area edge of the binding area 102b1. At the same time, the stress borne by the support structure in the display area 102a away from the area edge of the binding area 102b1 is reduced by more than 90%, effectively preventing the occurrence of H-Z PT in the display area 102a and the reliability risk of GDS.

[0168] According to the calculation formula of the capacitance d is used to represent the distance between the two capacitor plates in the capacitance. The smaller the d is, the larger the capacitance value of the capacitance is. Compared with the prior art solutions, the deformation of the mask is reduced by about 15%, which can reduce the size of the capacitance formed between the mask and the conductive layer in the display panel 102, reduce the risk of ESD, and reduce the incidence of H-Z PT, and then the incidence of GDS will also decrease linearly.

[0169] In the embodiments of the present application, it is referred to Figure 11 The packaging film layer 1023 includes: a first film layer 10231, a second film layer 10232 and a third film layer 10233 which are stacked in the direction away from the mother board substrate 101.

[0170] Optionally, the first film layer 10231 and the third film layer 10233 can be made of inorganic materials, and the second film layer 10232 can be made of organic materials. For example, the first film layer 10231 and the third film layer 10233 can be made of one or more inorganic oxides such as SiNx (silicon nitride), SiOx (silicon oxide) and SiOxNy (silicon oxynitride). The second film layer 10232 can be made of a resin material. The resin can be a thermoplastic resin or a thermosetting resin, the thermoplastic resin can include an acrylic (PMMA) resin, and the thermosetting resin can include an epoxy resin.

[0171] In the embodiments of the present application, the second film layer 10232 can be made by an ink jet printing (IJP) method. The first film layer 10231 and the third film layer 10233 can be made by a chemical vapor deposition (CVD) method. The second film layer 10232 can be referred to as an IJP layer, the first film layer 10231 can be referred to as a CVD1 layer, and the third film layer 10233 can be referred to as a CVD2 layer.

[0172] In the embodiments of the present application, with reference to Figure 7 , Figure 12 , Figure 14 to Figure 16 It can be seen that the display panel 102 can further include a blocking structure 1024 located in the peripheral region 102b and surrounding the display region 102a. The blocking structure 1024 is used to block overflow of organic materials in the display panel 102.

[0173] The second film layer 10232 in the encapsulation film layer 1023 can be located in the area surrounded by the blocking structure 1024, and the first film layer 10231 and the third film layer 10233 can cover the area surrounded by the blocking structure 1024 and cover the blocking structure 1024. That is, the orthogonal projection of the blocking structure 1024 on the mother substrate 101 is located in the area covered by the encapsulation film layer 1023, thereby ensuring effective encapsulation of the encapsulation film layer 1023 on each structure located in the area surrounded by the blocking structure 1024.

[0174] Optionally, the blocking structure 1024 can include at least one blocking dam Dam. For example, the blocking structure 1024 can include a first blocking dam Dam1, a second blocking dam Dam2, and a third blocking dam Dam3 arranged in sequence in a direction away from the display region 102a. The second film layer 10232 in the encapsulation film layer 1023 can be located in the area surrounded by the first blocking dam Dam1.

[0175] Optionally, the first blocking dam Dam1, the second blocking dam Dam2, and the third blocking dam Dam3 can all be composed of film layers in the display panel 102. The heights of the first blocking dam Dam1, the second blocking dam Dam2, and the third blocking dam Dam3 can increase in sequence. Of course, the heights of the first blocking dam Dam1, the second blocking dam Dam2, and the third blocking dam Dam3 can also be the same, and the embodiments of the present application do not limit this.

[0176] For the IJP layers of the first sub-display region 102a1 and the third sub-display region 102a3 of the display region 102a, the thickness of the IJP layer increases with the increase of the distance between the IJP layer and the boundary of the display region 102a. For example Figure 38The horizontal coordinate indicates five different positions, and the vertical coordinate indicates the thickness of the IJP layer corresponding to the five different positions. The distance between position 1 and the boundary of the display area 102a is the smallest, the distance between position 1 and position 5 and the boundary of the display area 102a gradually increases, and the distance between position 5 and the boundary of the display area 102a is the largest. Correspondingly, the thickness of the IJP layer corresponding to position 1 is the thinnest, the thickness of the IJP layer corresponding to position 1 to position 5 gradually increases, and the thickness of the IJP layer corresponding to position 5 is the thickest.

[0177] For example, the thickness of the IJP layer corresponding to position 2 is 25.5% thicker than the thickness of the IJP layer corresponding to position 1. The thickness of the IJP layer corresponding to position 3 is 16.6% thicker than the thickness of the IJP layer corresponding to position 2. The thickness of the IJP layer corresponding to position 4 is 11.4% thicker than the thickness of the IJP layer corresponding to position 3. The thickness of the IJP layer corresponding to position 5 is 8.85% thicker than the thickness of the IJP layer corresponding to position 4.

[0178] In the embodiment of the present application, by removing the support group 1022z in the area close to the binding area 102b1 in the display area 102a, the support group 1022z can be closer to the position with thicker IJP layer, and thus the generated PT can fall on the position with thicker IJP layer. Even if the PT stands up to form H-Z PT due to the effect of ESD, it can be ensured that the H-Z PT can be wrapped by the thicker IJP. The stress borne by the support structure, the position of the PT falling, and the thickness of the IJP layer are considered in the embodiment of the present application to ensure that, without introducing new PT, the support effect of the second support structure 104 on the mask plate reduces the size of the capacitance of the mask plate and the conductive layer in the display panel 102, reduces the ESD risk, and thus reduces the occurrence rate of H-Z PT, reduces the reliability test risk caused by the encapsulation failure of H-Z PT, and ensures the quality of the display panel 102.

[0179] In the embodiment of the present application, the display panel 102 can be obtained by cutting a display panel mother board. Optionally, the display panel mother board includes a module cutting channel and a panel cutting channel. The module cutting channel is located on the side of the blocking structure 1024 away from the display area 102a, and the panel cutting channel is located on the side of the module cutting channel away from the display area 102a. In the process of cutting the display panel 102 by using the display panel mother board, the module can be cut along the module cutting channel first, and then the display panel 102 can be cut along the panel cutting channel.

[0180] Optionally, the light emitting unit 1021 of the display panel 102 further comprises an anode layer, an organic light emitting functional layer, and a cathode layer. The organic light emitting functional layer can comprise a hole injection layer (HIL), a hole transport layer (HTL), a light emitting layer, an electron transport layer (ETL), and an electron injection layer (EIL). The hole injection layer, the hole transport layer, the electron transport layer, the electron injection layer, and the cathode layer can be prepared by using an open mask. For example Figure 7 , Figure 12 , Figure 14 to Figure 16 The film layer boundary prepared by using the open mask is shown in FIG. 5. In addition, the light emitting layer can be prepared by using an FMM and an F-mask.

[0181] Optionally, the display panel 102 can further comprise a cover layer located on the side of the cathode layer away from the mother substrate 101. The cover layer can comprise a first sub-layer and a second sub-layer. The material of the first sub-layer can be lithium fluoride (LiF), and the second sub-layer can be a light extraction layer (CPL). The cover layer can be used to improve the optical properties of the light emitting unit 1021 in the display panel 102.

[0182] In the embodiments of the present application, it is referred to Figure 11 The display panel 102 further comprises a pixel definition layer 1026, and the pixel definition layer 1026 is located on the side of the anode layer n1 away from the display panel mother substrate 101. The first support structure 1022 and the second support structure 104 can be prepared by using the same material and based on the same process. The first support structure 1022 can be located on the side of the pixel definition layer 1026 away from the display panel mother substrate 101.

[0183] Optionally, the first support structure 1022 and the second support structure 104 can be prepared by using the same material as the pixel definition layer 1026 and based on a half tone mask. The embodiments of the present application can achieve the removal of the support group and the addition of the second support structure 104 in the invalid area by changing the half tone mask. Moreover, other process conditions and process flows do not change.

[0184] In summary, the display panel mother board provided by the embodiments of the present application includes a mother board substrate, a plurality of display panels located in a plurality of panel regions, a test element group located in an invalid region, and a second support structure located in the invalid region. The display region of the display panel is close to the third sub-display region of the bonding region, and the first sub-display region away from the bonding region is not provided with the first support structure, and the second sub-display region of the display region is provided with the first support structure. Even if the mask and the first support structure are relatively displaced to cause material to fall and form PT in the evaporation process, PT can be made closer to the second sub-display region. Since the thickness of the encapsulation film layer on part of the second sub-display region is thicker, even if the height of PT is higher, the encapsulation film layer can be prevented from being pierced, the encapsulation effect of the encapsulation film layer is ensured, and the yield and display effect of the display panel are improved. Moreover, the first support structure and the second support structure share the mask used in the support evaporation process, which can ensure the support effect of the mask and improve the preparation yield of the display panel mother board.

[0185] The embodiments of the present application also provide a display panel 102, which can be obtained by cutting the display panel mother board provided by the above embodiments. Figure 39 is a structural schematic diagram of a display panel provided by the embodiments of the present application. Referring to Figure 39 , the display panel 102 includes a substrate substrate 1027, a plurality of light emitting units 1021, a plurality of first support structures 1022, and an encapsulation film layer 1023. The substrate substrate 1027 can be obtained by cutting the mother board substrate 101 in the display panel mother board.

[0186] Referring to Figure 6 , the display panel 102 includes a display region 102a and a peripheral region 102b surrounding the display region 102a. The display region 102a includes a first sub-display region 102a1, a second sub-display region 102a2, and a third sub-display region 102a3 arranged along a first direction X. The plurality of light emitting units 1021 are located in the display region 102a, and the plurality of light emitting units 1021 are used to emit light.

[0187] The plurality of first support structures 1022 are located in the second sub-display region 102a2, and the orthogonal projection of the first support structure 1022 on the substrate substrate 1027 is located in the orthogonal projection of the interval between the adjacent light emitting units 1021 on the substrate substrate 1027. In addition, the first sub-display region 102a1 and the third sub-display region 102a3 are not provided with the first support structure 1022.

[0188] The encapsulation film layer 1023 is located on the side of the plurality of light emitting units 1021 and the plurality of first support structures 1022 away from the substrate base plate 1027. The thickness of the encapsulation film layer 1023 at the portion of the first sub-display area 102a1, and the thickness of the encapsulation film layer 1023 at the portion of the third sub-display area 102a3, are less than the thickness of the encapsulation film layer 1023 at the portion of the second sub-display area 102a2.

[0189] Since the display panel 102 can have substantially the same technical effects as the display panel mother board described in the foregoing embodiments, for the purpose of brevity, the technical effects of the display panel 102 are not repeated here.

[0190] Figure 40 is a structural schematic diagram of a display device provided by an embodiment of the present application. Referring to Figure 40 , the display device includes a power supply assembly 200 and the display panel 102 provided by the foregoing embodiments. The power supply assembly 200 and the display panel 102 are connected, and used for supplying power to the display panel 102.

[0191] Optionally, the display device can be an organic light-emitting diode (OLED) display device, such as an active-matrix organic light-emitting diode (AMOLED) display device. Or the display device can be a quantum dot light emitting diode (QLED) display device. The display device can be any appropriate display device, including but not limited to a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a vehicle navigation device, an electronic book, and any product or component having a display function.

[0192] Since the display device can have substantially the same technical effects as the display panel mother board described in the foregoing embodiments, for the purpose of brevity, the technical effects of the display device are not repeated here.

[0193] The terms used in the embodiments of the present application are only used to explain the embodiments of the present application, and are not intended to limit the present application. Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be understood as the usual meaning understood by a person having ordinary skills in the art to which the present application belongs.

[0194] The description of the embodiments of the application part describes a number of embodiments, but this description is exemplary rather than limiting and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible within the scope of the embodiments described in the application. Although a number of possible combinations of features have been set forth in the attached drawings and discussed above, many other combinations are possible. Unless specifically intended otherwise, any feature or element of any embodiment can be utilized in any other embodiment, whether or not that particular combination is specifically set forth in the specification. Furthermore, many of the features and elements described herein can be combined with either other in any combination, as would be understood by one of ordinary skill in the art.

[0195] The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed herein can also be combined with any conventional feature or element to form a unique application defined by the claims. Any feature or element of any embodiment can also be combined with features or elements from other application to form another unique application defined by the claims. Therefore, it is to be understood that any feature shown and / or discussed in the present application can be implemented alone or in any suitable combination. Embodiments are, therefore, not to be limited to the specific embodiments disclosed herein, but only to the extent allowed by the appended claims and their equivalents. Moreover, various modifications and changes can be made thereto within the scope and spirit of the claims.

[0196] Furthermore, in describing representative embodiments, the specification can have presented the method and / or process as a particular sequence of steps. However, to the extent that the method or process depends on more than one step, the method or process should not be limited to the specific order of steps described. Other sequences of steps can also be possible. The specific order of steps presented in the specification is not to be interpreted as a limitation. Furthermore, the claims direct the scope of the application. Additionally, the order or specificity of the steps of the claims should not be used to limit the scope of the claims. The steps of the claims are presented in their specific order only to illustrate alternative embodiments.

[0197] In the drawings, the size, the thickness or the region of one or a plurality of constituent elements is sometimes exaggerated for the sake of clarity. In addition, the drawings schematically show ideal examples, and one embodiment of the present application is not limited to the shapes or values shown in the drawings.

[0198] The ordinal numbers "first", "second", "third", and the like in the specification are used to avoid confusion among constituent elements, and are not intended to indicate the number in the order of quantity. "A plurality of" in the present application means two or more in number.

[0199] The thickness range of the film layer in this specification is A to B, which means that the thickness is between A and B, inclusive of both end point values.

[0200] In this specification, terms of orientation or positional relationship such as "middle", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like used for the purpose of convenience to describe the positional relationship of the components with reference to the drawings are for the purpose of facilitating the description of this specification and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting on the present application. The positional relationship of the components is changed as appropriate according to the direction of the components described. Therefore, the terms described in the specification are not limited, and can be appropriately changed according to the situation.

[0201] In this specification, unless explicitly defined and limited otherwise, the terms "connected", "connected" should be broadly understood. For example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate piece, or communication inside two elements. For those skilled in the art, the meaning of the above terms in this application can be understood according to the situation.

[0202] In this specification, a transistor refers to an element including at least a gate electrode (gate), a drain electrode (drain terminal, drain region, or drain), and a source electrode (source terminal, source region, or source). The transistor has a channel region between the drain electrode and the source electrode, and current can flow through the drain electrode, the channel region, and the source electrode. Note that in this specification, the channel region refers to a region where current mainly flows.

[0203] In this specification, the first electrode of the transistor can be the drain electrode, and the second electrode of the transistor can be the source electrode, or the first electrode of the transistor can be the source electrode, and the second electrode of the transistor can be the drain electrode. In the case of using a transistor with opposite polarity or in the case of changing the direction of current in circuit operation, the functions of the "source electrode" and the "drain electrode" are sometimes exchanged with each other. Therefore, in this specification, the "source electrode" and the "drain electrode" can be exchanged with each other, and the "source terminal" and the "drain terminal" can be exchanged with each other.

[0204] In this specification, "connection" includes the case where components are connected through an element having a certain electrical action. The element having a certain electrical action is not particularly limited as long as it can transmit an electrical signal between the components to be connected. Examples of the element having a certain electrical action include not only electrodes and wiring but also a switching element such as a transistor, a resistor, an inductor, a capacitor, and another element having a variety of functions.

[0205] In this specification, "film" and "layer" can be replaced with each other. For example, "conductive layer" can be replaced with "conductive film" at times. Similarly, "insulating film" can be replaced with "insulating layer" at times.

[0206] In this specification, "thickness", "height" refer to the vertical distance between the surface of the film layer away from the substrate side and the surface close to the substrate side.

[0207] In this specification, triangle, rectangle, trapezoid, pentagon or hexagon, etc. are not strictly, can be approximately triangle, rectangle, trapezoid, pentagon or hexagon, etc. There can be some small deformation caused by tolerance, there can be an angle, arc edge and deformation, etc.

[0208] In this application, "approximately" means not strictly limited, and values within the range of process and measurement errors are allowed.

[0209] The above only describes optional embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A display panel motherboard, characterized in that, The display panel motherboard includes: A motherboard substrate, the motherboard substrate including multiple panel areas and invalid areas located between adjacent panel areas; Multiple display panels are provided, with each display panel corresponding to a specific panel area. Each display panel is located within a corresponding panel area. Each display panel includes a display area and a peripheral area surrounding the display area. The display area includes a first sub-display area, a second sub-display area, and a third sub-display area arranged along a first direction. The peripheral area includes a bonding area located on the side of the third sub-display area away from the first sub-display area. The display panel includes multiple light-emitting units located in the display area, multiple first support structures located in the second sub-display area, and an encapsulation film layer located on the side of the multiple light-emitting units and the multiple first support structures away from the mother substrate. The thickness of the encapsulation film layer in the portion located in the first sub-display area and the thickness in the portion located in the third sub-display area are less than the thickness of the encapsulation film layer in the portion located in the second sub-display area. A test element group is located in the invalid area and is connected to the display panel; And a second support structure, the second support structure being located in the invalid region, and the second support structure being located in the test element group near the first sub-display area.

2. The display panel motherboard according to claim 1, characterized in that, The plurality of first support structures include: a plurality of support groups arranged along the first direction, the plurality of support groups including: a plurality of first support groups and a plurality of second support groups, the plurality of first support groups and the plurality of second support groups being arranged alternately in the first direction; The first support group includes a plurality of first sub-support parts arranged along the second direction, and the second support group includes a plurality of second sub-support parts arranged along the second direction. The plurality of first sub-support parts in the first support group and the plurality of second sub-support parts in the second support group arranged adjacent to each other in the first direction are staggered in the second direction. The second direction intersects with the first direction.

3. The display panel motherboard according to claim 2, characterized in that, The width of the first sub-display area along the first direction and the width of the third sub-display area along the first direction are both greater than or equal to the distance between two adjacent support groups along the first direction.

4. The display panel motherboard according to claim 3, characterized in that, The distance between two adjacent first support groups along the first direction is equal to the distance between two adjacent second support groups along the first direction; The width of the third sub-display area along the first direction is greater than or equal to the distance between two adjacent first support groups along the first direction; There is a second support group between two adjacent first support groups.

5. The display panel motherboard according to claim 3, characterized in that, The distance between two adjacent first support groups along the first direction is equal to the distance between two adjacent second support groups along the first direction; The width of the third sub-display area along the first direction is greater than or equal to the distance between the first first support group and the second first support group along the first direction; Among them, there is a first second support group, a third first support group and a second second support group arranged along the first direction between the first first support group and the second first support group.

6. The display panel motherboard according to claim 3, characterized in that, The distance between two adjacent first support groups along the first direction is equal to the distance between two adjacent second support groups along the first direction; The width of the third sub-display area along the first direction is greater than or equal to the distance between the first first support group and the second first support group along the first direction; Between the first first support group and the second first support group, there are a first second support group, a third first support group, a second second support group, a fourth first support group, and a third second support group arranged along the first direction.

7. The display panel motherboard according to claim 5 or 6, characterized in that, The width of the first sub-display area along the first direction is greater than or equal to the distance between the first first support group and the second first support group along the first direction.

8. The display panel motherboard according to any one of claims 4 to 6, characterized in that, The width of the first sub-display area along the first direction is greater than or equal to the distance between two adjacent first support groups along the first direction; There is a second support group between two adjacent first support groups.

9. The display panel motherboard according to any one of claims 1 to 6, characterized in that, The test element group includes: a first test section and a second test section; The distance between the first test section and the display panel is greater than the distance between the second test section and the display panel; The second support structure includes a first part and a second part, the first part being located between the first test part and the display panel, and the second part being located between the second test part and the display panel; the width of the first part along the first direction is greater than the width of the second part along the first direction.

10. The display panel motherboard according to claim 9, characterized in that, The first part includes at least one strip-shaped third sub-support portion arranged along the first direction and extending along a second direction intersecting the first direction.

11. The display panel motherboard according to claim 10, characterized in that, The first part includes a plurality of the third sub-supports arranged along the first direction and extending along the second direction.

12. The display panel motherboard according to claim 11, characterized in that, The first portion includes two third sub-support portions arranged along the first direction and extending along the second direction; or, The first part includes four third sub-supports arranged along the first direction and extending along the second direction.

13. The display panel motherboard according to any one of claims 10 to 12, characterized in that, The second part includes at least one strip-shaped fourth sub-support portion arranged along the first direction and extending along the second direction.

14. The display panel motherboard according to claim 9, characterized in that, The first part includes a first main body portion and a first protrusion portion located between the first main body portion and the first test portion; The second part includes a second main body portion and a second protrusion portion located between the second main body portion and the second test portion; The first main body and the second main body are an integral structure.

15. The display panel motherboard according to claim 14, characterized in that, At least a portion of the boundary of the first protrusion and at least a portion of the boundary of the second protrusion are arc-shaped.

16. A display panel, characterized in that, The display panel is obtained by cutting the display panel mother plate according to any one of claims 1 to 15.

17. The display panel according to claim 16, characterized in that, The display panel includes: A substrate, the substrate including a display area and a peripheral area surrounding the display area, the display area including a first sub-display area, a second sub-display area and a third sub-display area arranged along a first direction; Multiple light-emitting units are located in the display area; A plurality of first support structures are located in the second sub-display area, and the orthographic projection of the first support structure on the substrate is located within the orthographic projection of the interval between adjacent light-emitting units on the substrate. And an encapsulation film layer, the encapsulation film layer being located on the side of the plurality of light-emitting units and the plurality of first support structures away from the substrate; The thickness of the encapsulation film layer in the portion located in the first sub-display area and the thickness of the portion located in the third sub-display area are less than the thickness of the encapsulation film layer in the portion located in the second sub-display area.

18. A display device, characterized in that, The display device includes: a power supply component and a display panel as described in claim 16 or 17; The power supply component is connected to the display panel, and the power supply component is used to supply power to the display panel.

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