Display module and display device

Abstract

The invention provides a display module and a display device. The problem that in the prior art, OLED display products are low in reliability is solved. Wherein the display module is provided with a display area, a frame area and a bending area, the frame area surrounds the display area, and in the first direction, the bending area is located on the side, away from the display area, of the frame area; the display module comprises a display panel; the first optical layer is located on one side of the display panel and comprises a plurality of micro lenses and a plurality of grooves, the micro lenses are located in the display area, and at least part of the grooves are located in the side, away from the display area, of the bending area; and at least part of the second optical layer fills the gap between the adjacent micro lenses, and the edge line of the orthographic projection of the second optical layer on the display panel does not exceed the orthographic projection of the groove on the display panel.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) is considered to be the next generation of flat panel display technology after liquid crystal. It is popular among users for its excellent color and image quality. However, the reliability of OLED display products in related technologies still needs to be improved. Summary of the invention

[0003] In view of this, the embodiments of the present application provide a display module and a display device, which solve the problem of low reliability of OLED display products in the prior art.

[0004] In a first aspect, the present application provides a display module, comprising a display area, a frame area and a bending area, wherein the frame area surrounds the display area, and in a first direction, the bending area is located on a side of the frame area away from the display area; the display module comprises: a display panel; a first optical layer, located on one side of the display panel, the first optical layer comprising a plurality of microlenses and a plurality of grooves, the microlenses being located in the display area, and at least a portion of the grooves being located on a side of the bending area away from the display area; and a second optical layer, wherein at least a portion of the second optical layer fills a gap between adjacent microlenses, and an edge line of an orthographic projection of the second optical layer on the display panel does not exceed an orthographic projection of the grooves on the display panel.

[0005] In combination with the first aspect, in some possible implementations, the multiple grooves include at least one first groove group, the first groove group includes multiple first grooves, and the first grooves are located on the side of the bending area away from the display area; the multiple first grooves in the same first groove group are arranged along the second direction, and the second direction intersects the first direction; preferably, at least one first groove group includes multiple first groove groups, and the multiple first groove groups are arranged along the first direction; preferably, in the first direction, the first grooves in adjacent first groove groups are staggered; preferably, the orthographic projection shape of the first groove on the display panel includes any one of a square, a polygon, and a circle; preferably, the orthographic projection shape of the first groove on the display panel is a square, and the distance between two opposite sides of the first groove is greater than or equal to 8 microns and less than or equal to 9 microns.

[0006] In combination with the first aspect, in some possible implementations, the multiple grooves also include a second groove, the second groove is located on the side of the bending area away from the display area, and the second groove extends along the second direction; preferably, the second groove is located on the side of the first groove group away from the bending area; preferably, the orthographic projection of the second groove on the display panel includes a first edge line close to the first groove, the first edge line includes a plurality of first line segments arranged adjacent to each other in sequence, the orthographic projection of the first groove on the display panel includes a first adjacent side close to the first line segment, and the first adjacent side is parallel to the first line segment; preferably, the shape of the first edge line includes a sawtooth shape; preferably, the first groove includes two first adjacent sides arranged adjacent to each other, and the two first adjacent sides are respectively parallel to the two adjacent first line segments; preferably, the distance between the parallel first adjacent sides and the first line segment is greater than or equal to 5 microns and less than or equal to 6 microns; preferably, the orthographic projection of the first groove on the display panel includes a second edge line away from the first groove, and the shape of the second edge line includes a straight line; preferably, the distance between the first edge line and the second edge line is greater than or equal to 8 microns and less than or equal to 20 microns.

[0007] In combination with the first aspect, in some possible implementations, the outer contour line of the frame area away from the display area includes the boundary line between the bending area and the frame area, and the module boundary other than the boundary line; the multiple grooves include multiple third grooves, the third grooves are located in the frame area, and the multiple third grooves are arranged along the module boundary; preferably, the orthographic projection shape of the third groove on the display panel includes any one of a square, a polygon, and a circle; preferably, the orthographic projection shape of the third groove on the display panel is a square, and the distance between two opposite sides of the third groove is greater than or equal to 8 microns and less than or equal to 9 microns.

[0008] In combination with the first aspect, in some possible implementations, the multiple grooves also include a fourth groove, the fourth groove is located in the frame area, and at least part of the fourth groove extends along the module boundary; preferably, the fourth groove is located on the side of the multiple third grooves away from the display area; preferably, the fourth groove includes a first sub-groove, a second sub-groove and a third sub-groove arranged along the extension direction of the fourth groove, the second sub-groove extends along the module boundary, the first sub-groove and the third sub-groove extend along the first direction, and the end of the first sub-groove away from the second sub-groove and the end of the third sub-groove away from the second sub-groove are both located in the bending area; preferably, the orthographic projection of the second sub-groove on the display panel includes a third edge line close to the third groove, and the third edge line includes sequentially adjacently arranged A plurality of second line segments, the orthographic projection of the third groove on the display panel includes a second adjacent edge close to the second line segment, and the second adjacent edge is parallel to the second line segment; preferably, the shape of the third edge line includes a sawtooth shape; preferably, the third groove includes two adjacent second adjacent edges, and the two second adjacent edges are respectively parallel to the two adjacent second line segments; preferably, the distance between the parallel second adjacent edges and the second line segment is greater than or equal to 5 microns and less than or equal to 6 microns; preferably, the orthographic projection of the second sub-groove on the display panel includes a fourth edge line away from the third groove, and the shape of the fourth edge line includes a straight line; preferably, the distance between the third edge line and the fourth edge line is greater than or equal to 8 microns and less than or equal to 20 microns.

[0009] In combination with the first aspect, in some possible implementations, the display module also includes a touch layer located between the display panel and the first optical layer; preferably, the touch layer includes a first touch metal layer, a touch insulating layer, and a second touch metal layer stacked in a direction away from the display panel; the touch insulating layer includes a via, and the second touch metal layer contacts the first touch metal layer through the via; on the side of the bending area away from the display area, the orthographic projection of the via on the display panel is located on the side of the orthographic projection of the groove on the display panel away from the bending area; preferably, on the side of the bending area away from the display area, the orthographic projection of the groove on the display panel is located within the range of the orthographic projection of the touch insulating layer on the display panel.

[0010] In combination with the first aspect, in some possible implementations, the first optical layer includes a touch protection layer, and the touch protection layer is in contact with the touch layer; preferably, the material of the first optical layer includes photoresist; preferably, the refractive index of the first optical layer is less than the refractive index of the second optical layer.

[0011] In combination with the first aspect, in some possible implementations, the display panel includes a substrate and a dam located on one side of the substrate, the dam is located in the frame area, and the dam surrounds the display area; the orthographic projection of the groove on the substrate is located on the side of the orthographic projection of the dam on the substrate away from the display area.

[0012] In combination with the first aspect, in some possible implementations, the display panel includes a substrate and a light-emitting device located on the substrate, and the light-emitting device is located in the display area; the orthographic projection of the microlens on the substrate and the orthographic projection of the light-emitting device on the substrate overlap; preferably, the display panel also includes a packaging structure, which is located on the side of the light-emitting device away from the substrate.

[0013] A second aspect of the present application provides a display device, comprising the display module provided by any of the above embodiments.

[0014] According to the display module and display device provided in the embodiments of the present application, by setting a groove in the first optical layer, the fluid material in the process of preparing the second optical layer can be blocked to avoid overflow of the fluid material, thereby solving the problems of jagged appearance of the screen body and the module finished product, fine horizontal lines on the display, abnormal touch test, etc. caused by overflow of the fluid material, thereby improving the reliability of the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the top structure of a display module provided in one embodiment of the present application.

[0016] Figure 2 A schematic diagram of a bending state of a display module provided in an embodiment of the present application.

[0017] Figure 3 for Figure 1 The cross-sectional structure diagram of the display module along line A1A2 is shown.

[0018] Figure 4 An embodiment of the present application provides Figure 1 An enlarged view of a first partial area of ​​the display module is shown.

[0019] Figure 5 An embodiment of the present application provides Figure 1 An enlarged view of a second partial area of ​​the display module is shown.

[0020] Figure 6 for Figure 4 and Figure 5 Further magnification of the area shown.

[0021] Figure 7 Another embodiment provides Figure 4 and Figure 6 Further magnification of the area shown.

[0022] Figure 8 An embodiment of the present application provides Figure 1 An enlarged view of a third partial area of ​​the display module is shown.

[0023] Fig. 9 An embodiment of the present application provides Figure 1 An enlarged view of a fourth partial area of ​​the display module is shown.

[0024] Fig.10 An embodiment of the present application provides Figure 1 An enlarged view of the fifth local area of ​​the display module is shown.

[0025] Fig.11 for Figure 8 , Fig. 9 and Fig.10 Further magnification of the area shown.

[0026] Fig.12 Another embodiment provides Figure 1 The cross-sectional structure diagram of the display module along line A1A2 is shown.

[0027] Fig.13 An embodiment provides Figure 1 The cross-sectional structure diagram of the display module along line A3A4 is shown.

[0028] Fig.14 A schematic diagram of the structure of a display device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0029] In the related art, in order to improve the display effect of display products, micro lenses are set in the display products, and the light output range is adjusted by the micro lenses to improve the display effect. Such display products often have problems such as jagged appearance of the screen body and module finished product, fine horizontal stripes on the display, abnormal touch test, etc. For narrow-frame products, the above problems will be further exacerbated.

[0030] In view of this, the present application provides a display module and a display device, which solve the above problems by setting grooves in the frame area and using the grooves to block the fluid material in the microlens preparation process to prevent overflow of the fluid material, thereby improving the reliability of the display product.

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] In the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It is understood that when a structure is referred to as being "on or under" another structure, the structure may be directly on or under the other structure, or there may be intermediate structures. The same reference numerals always indicate the same structure. The structures mentioned herein include any of a film layer, an element, a device, a component, and an assembly.

[0033] When a structure is referred to as being “connected” to another structure, the structure may be directly connected to the other structure or indirectly connected to the other structure with one or more intervening structures interposed therebetween.

[0034] In this specification, "electrical connection" includes the case where components are connected together through an element having some electrical function. There is no particular limitation on the "element having some electrical function" as long as it can transmit and receive electrical signals between the connected components. Examples of "element having some electrical function" include not only electrodes and wiring, but also switching elements such as transistors, resistors, inductors, capacitors, and other elements having various functions.

[0035] In this specification, the term “same-layer arrangement” refers to a structure in which two (or more) structures are formed by the same patterning process, and their materials may be the same or different.

[0036] Figure 1 A schematic diagram of the top structure of a display module provided in one embodiment of the present application. Figure 2 A schematic diagram of a bending state of a display module provided in an embodiment of the present application. Figure 3 for Figure 1 The cross-sectional structure diagram of the display module along the A1A2 line is shown. Figure 1 , Figure 2 and Figure 3 As shown, the display module has a display area AA, a frame area NA and a bending area SA. The frame area NA surrounds the display area AA. In the first direction x, the bending area SA is located on the side of the frame area NA away from the display area AA.

[0037] See also Figure 2 and Figure 3 The display module includes a display panel 10, a first optical layer 21, and a second optical layer 22. The first optical layer 21 is located on one side of the display panel 10. The first optical layer 21 includes a plurality of microlenses 211 and a plurality of grooves G. The microlenses 211 are located in the display area AA, and at least part of the grooves G are located on the side of the bending area SA away from the display area AA. The grooves G at least partially fill the gaps between adjacent microlenses 211, and the edge line of the orthographic projection of the second optical layer 22 on the display panel 10 does not exceed the orthographic projection of the grooves G on the display panel 10.

[0038] For example, in the thickness direction of the display panel 10, the groove G may penetrate the first optical layer 21, or partially penetrate the first optical layer 21. The number and shape of the groove G are not limited in this embodiment.

[0039] like Figure 2 As shown, the display module may further include a polarizer 70 and a cover plate 80, wherein the polarizer 70 is located on the side of the second optical layer 22 away from the display panel 10, and the cover plate 80 is located on the side of the polarizer 70 away from the display panel 10. An adhesive layer 90 may be provided between the polarizer 70 and the display panel 10. When the display module is in a bent state, the polarizer 70 is located on the display side of the display panel 10. Exemplarily, the polarizer 70 covers the display area AA and at least a portion of the frame area NA of the display panel 10.

[0040] According to the display module provided in this embodiment, by setting the groove G in the first optical layer 21, the fluid material in the process of preparing the second optical layer 22 can be blocked to avoid the overflow of the fluid material, thereby solving the problems of jagged appearance of the screen body and the finished module appearance caused by the overflow of the fluid material, fine horizontal lines on the display, abnormal touch test, etc., thereby improving the reliability of the display module. At the same time, since at least part of the groove G is set on the side of the bending area SA away from the display area AA, the polarizer 70 can be avoided, and the stress caused by the polarizer 70 can be avoided to cause the separation of the film layer at the groove G, thereby further improving the reliability of the display module.

[0041] Figure 4 An embodiment of the present application provides Figure 1 An enlarged view of a first partial area of ​​the display module is shown. Figure 5 An embodiment of the present application provides Figure 1 An enlarged view of a second partial area of ​​the display module is shown. Figure 6 for Figure 4 and Figure 5 Further magnification of the area shown.

[0042] Combination Figure 4 and Figure 1 As shown, Figure 4 Shows Figure 1 The enlarged view of the first local area Q1 of the display module is shown. Figure 5 and Figure 1 As shown, Figure 5 Shows Figure 1 The enlarged view of the second local area Q2 of the display module is shown. Figure 4 , Figure 5 , Figure 6 As shown, the plurality of grooves G include at least one first groove group G1, and the first groove group G1 includes a plurality of first grooves G 11 , the first groove G 11Located on the side of the bending area SA away from the display area AA. The multiple first grooves G1 in the same first groove group G1 11 Arranged along a second direction y, the second direction y intersects the first direction x.

[0043] In one embodiment, the at least one first groove group G1 includes a plurality of first groove groups G1 , and the plurality of first groove groups G1 are arranged along the first direction x.

[0044] In one embodiment, in the first direction x, the first grooves G1 in the adjacent first groove groups G1 are 11 The advantage of staggered arrangement is that it can better prevent fluid overflow.

[0045] In one embodiment, the orthographic projection shape of the first groove G1 on the display panel 10 includes any one of a square, a polygon, a circle, and an ellipse.

[0046] In one embodiment, the orthographic projection shape of the first groove G1 on the display panel 10 includes a square, and the distance D1 between two opposite sides of the first groove G1 is greater than or equal to 8 micrometers and less than or equal to 9 micrometers. Exemplarily, the distance D1 is 8 micrometers, 8.8 micrometers, 9 micrometers, etc.

[0047] Figure 7 Another embodiment provides Figure 4 and Figure 6 A further enlarged view of the local area shown. Figure 7 The enlarged image and Figure 3 The difference between the enlarged view shown is that, in this embodiment, the plurality of grooves G further include a second groove G2, the second groove G2 is located on the side of the bending area SA away from the display area AA, and the second groove G2 extends along the second direction y.

[0048] In one embodiment, the second groove G2 is located on a side of the first groove group G1 away from the bending area SA.

[0049] In one embodiment, the orthographic projection of the second groove G2 on the display panel 10 includes a portion close to the first groove G 11 The first edge line L1 includes a plurality of first line segments L1 arranged adjacent to each other in sequence. 11 . First groove G 11 The orthographic projection on the display panel 10 includes a line segment L 11 The first adjacent side S1, the first adjacent side S1 and the first line segment L 11 parallel.

[0050] In one embodiment, the shape of the first edge line L1 includes a sawtooth shape.

[0051] In one embodiment, the first groove G 11The two first adjacent sides S1 are respectively adjacent to the two adjacent first line segments L 11 parallel.

[0052] In one embodiment, the first adjacent side S1 and the first line segment L are arranged in parallel. 11 The distance D2 between them is greater than or equal to 5 micrometers and less than or equal to 6 micrometers. For example, the distance D2 is 5 micrometers, 5.8 micrometers, 6 micrometers, etc.

[0053] In one embodiment, the first groove G 11 The orthographic projection on the display panel 10 includes a region away from the first groove G 11 The second edge line L2 has a shape including a straight line.

[0054] In one embodiment, the distance D3 between the first edge line L1 and the second edge line L2 is greater than or equal to 8 micrometers and less than or equal to 20 micrometers. At different positions in the extension direction of the second groove G2, the distance D3 between the first edge line L1 and the second edge line L2 is different. Exemplarily, the maximum value of the distance D3 between the first edge line L1 and the second edge line L2 is 19.03 micrometers, and the minimum value of the distance D3 between the first edge line L1 and the second edge line L2 is 8.71 micrometers.

[0055] Figure 8 An embodiment of the present application provides Figure 1 An enlarged view of a third partial area of ​​the display module is shown. Fig. 9 An embodiment of the present application provides Figure 1 An enlarged view of a fourth partial area of ​​the display module is shown. Fig.10 An embodiment of the present application provides Figure 1 An enlarged view of the fifth local area of ​​the display module is shown. Fig.11 for Figure 8 , Fig. 9 and Fig.10 Further enlargement of the local area shown. Figure 1 and Figure 8 As shown, Figure 8 Shows Figure 1 An enlarged view of the third local area Q3 in FIG. Figure 1 and Fig. 9 As shown, Fig. 9 Shows Figure 1 An enlarged view of the fourth local area Q4 in FIG. Figure 1 and Fig.10 As shown, Fig.10 Shows Figure 1 An enlarged view of the fifth local area in FIG.

[0056] In this embodiment, see Figure 1, Figure 8-Figure 11 The outer contour line of the frame area NA away from the display area AA includes the boundary line between the bending area SA and the frame area NA, and the module boundary except the boundary line. The plurality of grooves G also include a plurality of third grooves G3, and the third grooves G3 are located in the frame area NA. The plurality of third grooves G3 are arranged along the module boundary.

[0057] In one embodiment, see Fig.11 The orthographic projection shape of the third groove G3 on the display panel 10 includes any one of a square, a polygon, and a circle.

[0058] In one embodiment, see Fig.11 The orthographic projection shape of the third groove G3 on the display panel 10 is a square, and the distance D5 between two opposite sides of the third groove G3 is greater than or equal to 8 micrometers and less than or equal to 9 micrometers. Exemplarily, the distance D5 is 8 micrometers, 8.8 micrometers or 9 micrometers.

[0059] According to the display module provided in this embodiment, a group of third grooves G3 are arranged along the boundary of the display module, and a plurality of groups of first grooves G3 are arranged on the side of the bending area NA away from the display area AA. 11 , making the groove width of the upper, left and right frames of the display module smaller than the groove width of the lower frame, which is beneficial to compressing the frame NA size and increasing the screen-to-body ratio.

[0060] In one embodiment, see Figure 1 , Figure 8-Figure 11 The plurality of grooves G further include a fourth groove G4, the fourth groove G4 is located in the border area NA, and at least a portion of the fourth groove G4 extends along the module boundary.

[0061] In one embodiment, see Figure 8-Figure 11 The fourth groove G4 is located on a side of the plurality of third grooves G3 away from the display area AA.

[0062] In one embodiment, in combination Figure 1 , see Fig. 9 and Fig.10 The fourth groove G4 includes first sub-grooves G arranged along the extension direction of the fourth groove G4. 41 , the second sub-groove G 42 and the third sub-groove G 43 . Second sub-groove G 42 Extending along the module boundary, the first sub-groove G 41 and the third sub-groove G 43 The first sub-groove G extends along the first direction x. 41 Away from the second sub-groove G 42 The end and the third sub-groove G 43 Away from the second sub-groove G 42The ends are both located in the bending area SA.

[0063] In one embodiment, Fig.11 As shown, the second sub-groove G 42 The orthographic projection on the display panel 10 includes a third edge line L3 close to the third groove G3, and the third edge line L3 includes a plurality of second line segments L3 arranged adjacent to each other in sequence. 31 The orthographic projection of the third groove G3 on the display panel 10 includes a portion close to the second line segment L 31 The second adjacent side S2, the second adjacent side S2 and the second line segment L 31 parallel.

[0064] In one embodiment, the shape of the third edge line L3 includes a sawtooth shape.

[0065] In one embodiment, the third groove G3 includes two second adjacent sides S2 arranged adjacent to each other, and the two second adjacent sides S2 are respectively adjacent to two adjacent second line segments L 31 parallel.

[0066] In one embodiment, the second adjacent side S2 and the second line segment L are arranged in parallel. 31 The distance D6 therebetween is greater than or equal to 5 micrometers and less than or equal to 6 micrometers. Exemplarily, the distance D6 is 5 micrometers, 5.8 micrometers or 6 micrometers.

[0067] In one embodiment, the second sub-groove G 42 The orthographic projection on the display panel 10 includes a fourth edge line L4 away from the third groove G3 , and the shape of the fourth edge line L4 includes a straight line.

[0068] In one embodiment, the distance D7 between the third edge line L3 and the fourth edge line L4 is greater than or equal to 8 microns and less than or equal to 20 microns. At different positions in the extension direction of the fourth groove G4, the distance D7 between the third edge line L3 and the fourth edge line L4 is different. Exemplarily, the maximum value of the distance D7 between the third edge line L3 and the fourth edge line L4 is 19.03 microns, and the minimum value of the distance D7 between the third edge line L3 and the fourth edge line L4 is 8.71 microns.

[0069] According to the display module provided in this embodiment, the third groove G3 and the fourth groove G4 are provided to be connected with the first groove G 11 The second groove G2 cooperates with each other to surround the edges of the display area AA and block the fluid material of the second optical layer 22 from all directions around the display area AA to prevent overflow. Wherein, the groove G is not provided in the bending area SA. On the one hand, the cutting in the bending area SA can be used to prevent overflow. On the other hand, even if overflow from the bending area SA, it will be cut off later, which will not affect the reliability of the display module.

[0070] Fig.12 Another embodiment provides Figure 1 The cross-sectional structure diagram of the display module along line A1A2 is shown. Fig.12 Only a partial stacked structure of the display module is shown. Fig.13 An embodiment provides Figure 1 The cross-sectional structure diagram of the display module along the A3A4 line is shown. Fig.12 and Fig.13 As shown, the display module, based on the display module provided by any of the above embodiments, further includes a touch layer 30 located between the display panel 10 and the first optical layer 21 .

[0071] In one embodiment, the touch layer 30 includes a first touch metal layer 31, a touch insulating layer 32, and a second touch metal layer 33 stacked in a direction away from the display panel 10. Fig.12 As shown, the touch insulating layer 32 includes a via H, and the via H is located on the side of the bending area SA away from the display area AA. The second touch metal layer 33 contacts the first touch metal layer 31 through the via H. On the side of the bending area SA away from the display area AA, the orthographic projection of the via H on the display panel 10 is located on the side of the orthographic projection of the groove G on the display panel 10 away from the bending area SA.

[0072] In one embodiment, at the side of the bending area SA away from the display area AA, the orthographic projection of the groove G on the display panel 10 is located within the orthographic projection range of the touch insulating layer 32 on the display panel 10 .

[0073] In one embodiment, the first optical layer 21 includes a touch protection layer, and the touch protection layer is in contact with the touch layer 30 .

[0074] In one embodiment, the material of the first optical layer 21 includes photoresist.

[0075] In one embodiment, the refractive index of the first optical layer 21 is less than the refractive index of the second optical layer 22 .

[0076] In one embodiment, in combination Figure 1 and Fig.13 As shown, the display panel includes a substrate 111 and a dam 40 located on one side of the substrate 111. The dam 40 is located in the frame area NA and surrounds the display area AA. The orthographic projection of the groove G on the substrate 111 is located on the side away from the orthographic projection of the dam 40 on the substrate 111 and the display area AA.

[0077] In one embodiment, Fig.13As shown, the display panel 10 includes a substrate 11 and a light emitting device 50 located on one side of the substrate 11, and the light emitting device 50 is located in the display area AA. The orthographic projection of the microlens 211 on the substrate 11 overlaps with the orthographic projection of the light emitting device 50 on the substrate 11.

[0078] Exemplarily, the light-emitting device 50 may be an organic light-emitting diode (OLED), a micro light-emitting diode (Micro LED), a quantum dot light-emitting diode (QLED), etc. The light-emitting device 50 may be a light-emitting device of various colors, such as a red light-emitting device, a green light-emitting device, a blue light-emitting device, etc. The light-emitting device 50 includes a first electrode 51, at least one light-emitting functional layer 52, and a second electrode 53 stacked in sequence in a direction gradually away from the substrate 11. Exemplarily, the first electrode 51 is an anode and the second electrode 53 is a cathode. Alternatively, the first electrode 51 is a cathode and the second electrode 53 is an anode.

[0079] At least one light-emitting functional layer includes a light-emitting layer, and may also include at least one of a hole injection layer (HIL), a hole transport layer (HTL), and an electron blocking layer (EBL) located between the anode and the light-emitting layer, and at least one of an electron injection layer (EIL), an electron transport layer (ETL), and a hole blocking layer (HBL) located between the cathode and the light-emitting layer. Exemplarily, one or more of the hole injection layer, hole transport layer, electron blocking layer, hole blocking layer, electron transport layer, and electron injection layer of all sub-pixels may be a common layer connected together, and the light-emitting layers of adjacent sub-pixels may have a small overlap, or may be isolated from each other.

[0080] The substrate 11 includes a substrate 111 and a pixel circuit 12 located on one side of the substrate 111, and the pixel circuit 12 is electrically connected to the light-emitting device 50. In some embodiments, the substrate 111 may be a glass-based substrate. In some embodiments, the substrate 111 may include an organic resin material such as epoxy resin, triazine, silicone resin, or polyimide. In some embodiments, the substrate 111 may include a ceramic material such as silicon nitride, aluminum nitride, or aluminum oxide, or include a metal or a metal compound. In one embodiment, the pixel circuit 12 includes a 7T1C pixel circuit, an 8T1C pixel circuit, etc.

[0081] In one embodiment, Fig.13As shown, the display panel further includes an encapsulation structure 60, which is located on the side of the light-emitting device 50 away from the substrate 11. Exemplarily, the encapsulation structure 60 includes a first encapsulation layer, a second encapsulation layer, and a third encapsulation layer stacked in sequence in a direction away from the substrate 11, wherein the materials of the first encapsulation layer and the third encapsulation layer are inorganic materials, and the material of the second encapsulation layer is an organic material. The orthographic projection of the second encapsulation layer on the substrate 11 is located within the orthographic projection range of the first encapsulation layer on the substrate 11, and the orthographic projection of the second encapsulation layer on the substrate 11 is located within the orthographic projection range of the third encapsulation layer on the substrate 11. In the border area NA, the first encapsulation layer and the second encapsulation layer are in contact.

[0082] The present application also provides a display device. Fig.14 This is a schematic diagram of the structure of a display device provided in one embodiment of the present application. Fig.14 As shown, the display device includes the display module 100 provided by any of the above embodiments.

[0083] A display device is a product with an image display function. For example, a display device can be used to display static images, such as pictures or photos. A display device can also be used to display dynamic images, such as videos.

[0084] The display device can be a laptop computer, a mobile phone, a handheld or portable computer, a camera, a camcorder, a vehicle-mounted intelligent central control screen, a calculator, a smart watch, a GPS navigator, an electronic photo, an electronic billboard or sign, a projector, etc.

[0085] In addition, the display device may also have functions such as taking photos, recording videos, fingerprint recognition, and face recognition. Accordingly, the display device also includes at least one functional module for realizing the above functions, such as an under-screen camera, an under-screen fingerprint recognition sensor, and the like.

[0086] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0087] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A display module, characterized in that: The display module has a display area, a frame area and a bending area, wherein the frame area surrounds the display area, and in a first direction, the bending area is located on a side of the frame area away from the display area; the display module comprises: Display panel; A first optical layer, located at one side of the display panel, the first optical layer comprising a plurality of micro lenses and a plurality of grooves, the micro lenses being located at the display area, and at least part of the grooves being located at a side of the bending area away from the display area; and The second optical layer, at least a portion of the second optical layer fills the gaps between adjacent microlenses, and an edge line of an orthographic projection of the second optical layer on the display panel does not exceed the orthographic projection of the groove on the display panel.

2. The display module according to claim 1, characterized in that: The plurality of grooves include at least one first groove group, the first groove group includes a plurality of first grooves, the first grooves are located at a side of the bending area away from the display area; the plurality of first grooves in the same first groove group are arranged along a second direction, and the second direction intersects the first direction; Preferably, the at least one first groove group includes a plurality of first groove groups, and the plurality of first groove groups are arranged along the first direction; Preferably, in the first direction, the first grooves in adjacent first groove groups are arranged in a staggered manner; Preferably, the orthographic projection shape of the first groove on the display panel includes any one of a square, a polygon and a circle; Preferably, the orthographic projection shape of the first groove on the display panel is a square, and the distance between two opposite sides of the first groove is greater than or equal to 8 micrometers and less than or equal to 9 micrometers.

3. The display module according to claim 2, characterized in that: The plurality of grooves further include a second groove, the second groove is located at a side of the bending area away from the display area, and the second groove extends along the second direction; Preferably, the second groove is located on a side of the first groove group away from the bending area; Preferably, the orthographic projection of the second groove on the display panel includes a first edge line close to the first groove, the first edge line includes a plurality of first line segments arranged adjacent to each other in sequence, the orthographic projection of the first groove on the display panel includes a first adjacent side close to the first line segment, and the first adjacent side is parallel to the first line segment; Preferably, the shape of the first edge line includes a sawtooth shape; Preferably, the first groove includes two first adjacent sides arranged adjacent to each other, and the two first adjacent sides are respectively parallel to two adjacent first line segments; Preferably, the distance between the first adjacent sides and the first line segment arranged in parallel is greater than or equal to 5 microns and less than or equal to 6 microns; Preferably, the orthographic projection of the first groove on the display panel includes a second edge line away from the first groove, and the shape of the second edge line includes a straight line; Preferably, the distance between the first edge line and the second edge line is greater than or equal to 8 micrometers and less than or equal to 20 micrometers.

4. The display module according to claim 1, characterized in that: The outer contour line of the frame area away from the display area includes the boundary line between the bending area and the frame area, and the module boundary except the boundary line; the plurality of grooves include a plurality of third grooves, the third grooves are located in the frame area, and the plurality of third grooves are arranged along the module boundary; Preferably, the orthographic projection shape of the third groove on the display panel includes any one of a square, a polygon and a circle; Preferably, the orthographic projection shape of the third groove on the display panel is a square, and the distance between two opposite sides of the third groove is greater than or equal to 8 micrometers and less than or equal to 9 micrometers.

5. The display module according to claim 4, characterized in that: The plurality of grooves further includes a fourth groove, the fourth groove is located in the border area, and at least a portion of the fourth groove extends along the module boundary; Preferably, the fourth groove is located on a side of the plurality of third grooves away from the display area; Preferably, the fourth groove includes a first sub-groove, a second sub-groove and a third sub-groove arranged along the extension direction of the fourth groove, the second sub-groove extends along the module boundary, the first sub-groove and the third sub-groove extend along the first direction, and an end of the first sub-groove away from the second sub-groove and an end of the third sub-groove away from the second sub-groove are both located in the bending area; Preferably, the orthographic projection of the second sub-groove on the display panel includes a third edge line close to the third groove, the third edge line includes a plurality of second line segments arranged adjacent to each other in sequence, the orthographic projection of the third groove on the display panel includes a second adjacent side close to the second line segment, and the second adjacent side is parallel to the second line segment; Preferably, the shape of the third edge line includes a sawtooth shape; Preferably, the third groove includes two adjacent second adjacent sides, and the two second adjacent sides are respectively parallel to two adjacent second line segments; Preferably, the distance between the second adjacent sides and the second line segment arranged in parallel is greater than or equal to 5 microns and less than or equal to 6 microns; Preferably, the orthographic projection of the second sub-groove on the display panel includes a fourth edge line away from the third groove, and the shape of the fourth edge line includes a straight line; Preferably, the distance between the third edge line and the fourth edge line is greater than or equal to 8 micrometers and less than or equal to 20 micrometers.

6. The display module according to claim 1, characterized in that: It also includes a touch layer located between the display panel and the first optical layer; Preferably, the touch layer comprises a first touch metal layer, a touch insulating layer and a second touch metal layer stacked in a direction away from the display panel; the touch insulating layer comprises a via hole, and the second touch metal layer contacts the first touch metal layer through the via hole; On a side of the bending area away from the display area, the orthographic projection of the via hole on the display panel is located on a side of the orthographic projection of the groove on the display panel away from the bending area; Preferably, on a side of the bending area away from the display area, an orthographic projection of the groove on the display panel is located within a range of an orthographic projection of the touch insulating layer on the display panel.

7. The display module according to claim 6, characterized in that: The first optical layer includes a touch protection layer, and the touch protection layer is in contact with the touch layer; Preferably, the material of the first optical layer includes photoresist; Preferably, the refractive index of the first optical layer is smaller than the refractive index of the second optical layer.

8. The display module according to claim 1, characterized in that: The display panel includes a substrate and a dam located on one side of the substrate, the dam is located in the frame area, and the dam surrounds the display area; the orthographic projection of the groove on the substrate is located on a side of the orthographic projection of the dam on the substrate away from the display area.

9. The display module according to claim 1, characterized in that: The display panel comprises a substrate and a light emitting device located on the substrate, wherein the light emitting device is located in the display area; the orthographic projection of the microlens on the substrate overlaps with the orthographic projection of the light emitting device on the substrate; Preferably, the display panel further comprises a packaging structure located on a side of the light emitting device away from the substrate.

10. A display device, characterized in that: A display module comprising any one of claims 1-9.

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