300.

Optionally, the auxiliary structure 700 are around the pixels SP in the first display area AA1. Specifically, the auxiliary structures 700 are in the first display area AA1 and are around the light-emitting elements 350. Orthographic projections of the auxiliary structures 700 on the substrate 110 are around an orthographic projection of a light-emitting element 350 on the substrate 110. Optionally, an orthographic projection of an auxiliary structure 700 on the substrate 110 is between orthographic projections of two adjacent light-emitting elements 350 on the substrate 110. It can be understood that an edge of a light-emitting element 350 may be an edge of an opening of the pixel definition layer 340, i.e., the opening of the pixel definition layer 340 defines the light-emitting element 350.

Since a CUP area requires a higher light transmittance, there will be a visual difference from a conventional display area. In one embodiment, the auxiliary structures provided in the first display area can improve a visual difference between the CUP area and the conventional display area.

Further, because the light-transmitting area is around the light-emitting elements in the first display area, when the light-emitting elements in the first display area emit lights, a display effect in the first display area is different from a display effect in a conventional area. In one embodiment, the auxiliary structures are arranged on a side of the light-emitting elements facing the display surface of the display panel, and are arranged around the light-emitting elements with light-transmitting areas around the light-emitting elements, so that an influence of the light-transmitting areas around the light-emitting elements in the first display area on the light-emitting elements can be compensated, and the display difference of the light-emitting elements in the CUP area and the conventional display area can be improved.

It should be noted that, in the present specification, an auxiliary structure “around” a pixel means that the auxiliary structure is arranged adjacent to the pixel, and there may be a distance between the auxiliary structure and the pixel, but there are no other pixels or light-emitting elements between the auxiliary structure and the pixel.

In some embodiments, optionally, the auxiliary structure 700 includes a protrusion or a groove. The auxiliary structure 700 may be a protrusion or a groove. The auxiliary structure 700 may also be a combination of a protrusion and a groove.

Optionally, as shown in FIG. 2, the auxiliary structure 700 includes a protrusion. The protrusion may be an additional film layer structure. The protrusion may be an island-like structure. In some optional embodiments, the protrusion may be formed by an existing film layer in a certain display panel facing an outside of the film layer and extending along a direction perpendicular to the display panel (i.e., the third direction Z).

Optionally, in one embodiment, in the light-transmitting area SS, part of film layers or structures (e.g., pixel circuits) in the display panel need to be removed or be transferred to other areas, to increase a light transmittance of the first display area. Optionally, the insulating layer in the array substrate in the display panel is hollowed out in the light-transmitting area SS. Optionally, an entire surface of the substrate in the display panel is retained.

Optionally, the pixel circuits and TFTs corresponding to the pixels in the first display area are arranged in the non-first display area.

Optionally, the pixel circuits and TFTs corresponding to the pixels in the first display area are arranged in the second display area.

FIG. 4 illustrates a top view of another display panel consistent with various embodiments of the present disclosure. In some optional embodiments, the display area AA of the display panel 100 may further include a third display area AA3, surrounding or partially surrounding the second display area AA2. For example, the third display area AA3 is between the non-display area NA and the second display area AA2.

The second display area AA2 is equivalent to a transition display area between a conventional display area and a light-transmitting display area (or the CUP area). Optionally, a pixel circuit corresponding to a light-emitting element in the third display area AA3 is in the display area where a pixel SP is located. A pixel circuit corresponding to a light-emitting element in the second display area AA2 is also in the display area where a pixel SP is located. The pixel circuit corresponding to the light-emitting elements in the first display area AA1 is in the second display area AA2, i.e., the second display area AA2 includes not only the pixel circuits corresponding to driving the light-emitting elements in the second display area AA2, but also the pixel circuits corresponding to driving the light-emitting elements in the first display area AA1.

It should be noted that, in FIGS. 1 and 2, a dotted box formed by double dot-lines is used to indicate a boundary between the second display area AA2 and the third display area AA3, a dotted box formed by short lines is used to indicate a boundary between the second display area AA2 and the first display area AA1 and a dotted box formed by dots is used to indicate a boundary of the light-transmitting area SS. Cross-sectional views in the accompanying drawings of the present specification applicable to the top view of FIG. 1, if not contradictory, can also be used to illustrate a partial cross-sectional view in the direction A-A in FIG. 4. Cross-sections are perpendicular to a plane where the display panel is located.

FIG. 5 illustrates another partial cross-sectional view along the A-A direction in FIG. 1. The cross-section is perpendicular to the plane where the display panel is located. In one embodiment, the display panel further includes a touch function layer 500.

Optionally, the touch function layer 500 is on a side of the display function layer 800 facing the display panel 100.

Optionally, the touch function layer 500 is on the encapsulation layer 400 of the display panel 100, i.e., the touch function layer is on a side of the encapsulation layer away from the light-emitting elements.

Optionally, the auxiliary structure 700 is multiplexed as a film layer of the touch function layer 50, i.e., the auxiliary structure 700 and one or more film layers in the touch function layer 500 are on a same layer and are made of a same material.

At a large viewing angle, a brightness of the conventional display area is different from a brightness of the CUP area, resulting in the CUP area being visible. At a large viewing angle, an influence of some film patterns on a touch control layer on a light output of the conventional display area is different from an influence of some film patterns on a touch control layer on a light output of the CUP area. Therefore, at a large viewing angle, the brightness of the CUP area may be higher than the brightness of the conventional display area, resulting in the CUP area being visible.

In one embodiment, by arranging the auxiliary structure 700 and one or more film layers of the touch function layer 500 on a same layer and made of a same material, an influence of the auxiliary structures 700 on the light output of the CUP area can be closer to an influence of the touch function layer 500 on the light output of the conventional display area. The display effect described above can be improved, and at a same time, technical problems described above can be improved in a more targeted manner.

For example, dashed arrows in FIG. 5 illustrate lights at large viewing angles. Under a setting of the auxiliary structures, a difference between a light at a large viewing angle in the CUP area and a light at the large viewing angle in the conventional display area can be reduced.

There are differences in metal shadings or different refractive index structures on an optical path of a large viewing angle. Therefore, a concave-convex structure can be formed by arranging a same layer of metal as a TP (i.e., an auxiliary structure of multiplexing the metal mesh) or an insulating layer on a touch function layer above a light-transmitting area of the CUP, so that a light emitted at a large viewing angle of the CUP is also disturbed to reach a level equivalent to a normal area, i.e., the conventional display area. A brightness difference between the light-transmitting area of the CUP and the conventional display area is reduced at a large viewing angle.

Optionally, the display panel 100 further includes the second display area AA2. A light transmittance of the second display area AA2 is smaller than a light transmittance of the first display area AA1.

The touch function layer 500 includes conductive layers 520 at least in the first display area AA1.

The auxiliary structure 700 includes first auxiliary structures 710. A first auxiliary structure 710 and a conductive layer 520 are on a same layer and are made of a same material.

In one embodiment, the auxiliary structure can be formed by multiplexing a film layer where a conductive layer of a touch function layer is formed. On one hand, a conductive layer often needs to form a patterned conductive structure, so the conductive structure with conductive properties is often not arranged on an entire surface, which provides a certain setting spacing for the auxiliary structure; on the other hand, the auxiliary structure can be formed together with a pattering process of the conductive structure, thereby simplifying the process, and reducing a cost.

FIG. 6 illustrates another partial cross-sectional view along the A-A direction in FIG. 1. FIG. 7 illustrates a top view of a touch function layer consistent with various embodiments of the present disclosure. The conductive layers 520 include a first touch conductive layer 521 and a second touch conductive layer 522. Optionally, a first auxiliary structure 710 and the first touch conductive layer 521 are on a same layer and are made of a same material; and/or a first auxiliary structure 710 and the second touch conductive layer 522 are on a same layer and are made of a same material.

Optionally, the conductive layer 520 includes an electrode layer and a bridge layer. The first auxiliary structure is on a same layer and are made of a same material as the electrode layer and/or the bridge layer.

Specifically, the first touch conductive layer 521 includes first touch electrodes 521a and second touch electrodes 521b, and one of the first touch electrode 521a and the second touch electrode 521b may be a touch driving electrode and the other of the first touch electrode 521a and the second touch electrode 521b may be a touch sensing electrode, so that the first touch electrode 521a is electrically insulated from the second touch electrode 521b.

Optionally, the first touch electrodes 521a intersect the second touch electrodes 521b. To achieve electrical isolations between the first touch electrodes 521a and the second touch electrodes 521b, parts of the second touch electrodes 521b on two sides of the first touch electrodes 521a may be electrically connected through bridge electrodes 522c on a different layer from the first touch conductive layer 521. That is, the second touch conductive layer 522 includes the bridge electrodes 522c, and a position where a second touch electrode 521b intersects with a first touch electrode 521a is electrically connected through a bridge electrode 522c.

Optionally, the first auxiliary structure and one or more of the first touch electrodes 521a, the second touch electrodes 521b, and the bridge electrodes 522c are on a same layer and are made of a same material.

In some embodiments, as shown in FIG. 6, the first auxiliary structure and the first touch electrodes 521a and the second touch electrodes 521b are on a same layer and are made of a same material.

FIG. 8 illustrates another partial cross-sectional view along the A-A direction in FIG. 1. The cross section is perpendicular to the plane where the display panel is located. Optionally, the first auxiliary structure includes a plurality of sublayers on different layers, a part of the first auxiliary structure is on a same layer and is made of a same material as the first touch electrodes 521a and the second touch electrodes 521b; and another part of the first auxiliary structure is on a same layer and is made of a same material as the bridge electrodes 522c.

Optionally, a touch function layer includes insulating layers. Specifically, when the display panel 100 includes the touch function layer 500, corresponding insulating layers are arranged to isolate the touch function layer 500 from other functional film layers, and/or corresponding insulating layers are arranged on the touch function layer 500 to separate conductive layers of different layers. In one embodiment, the insulating layers are referred to as touch insulating layers (refer to the first insulating layer 510, the second insulating layer 530 and the third insulating layer 540 in other embodiments). In one embodiment, the touch insulating layers in the second display area AA2 are retained and extended from the second display area AA2 to the first display area AA1. That is to say, the touch insulating layers are also retained in the first display area AA1.

Optionally, the first auxiliary structure may be carried by the touch insulating layers. The sublayers of the first auxiliary structure on different layers may be separated by the touch insulating layers.

It should be noted that, in one embodiment, a film layer where the electrode layer is located is the first touch conductive layer 521, and a film layer where the bridge layer is located is the second touch conductive layer 522. In other optional embodiments, the film layer where the electrode layer is located is the second touch conductive layer 522 and the film layer where the bridge layer is located is the first touch conductive layer 521.

In addition, in other technical solutions corresponding to the embodiment, the touch function layer 500 may only include one conductive layer. Optionally, when the touch function layer 500 includes only one conductive layer, the touch electrodes included therein are in a self-capacitance mode.

In the embodiment, on one hand, since the touch insulating layer is made of a light-transmitting material, appearing thereof in the first display area does not affect a light transmittance of the first display area. Moreover, since the touch insulating layer generally does not need patterning or complex patterning, the touch insulating layer is usually fabricated on an entire surface. However, the conductive layer of the touch function layer often needs to form electrodes or bridges, so patterning is required. In the embodiment, the touch insulating layer is retained in the CUP area, and the electrode layer or the film layer where the bridges are located is used as an auxiliary structure, which can make a touch structure of the CUP area and the conventional display area closer without affecting a light-transmitting area, thereby better improving a display difference between the CUP area and the conventional display area. On the other hand, the touch insulating layer can be used as an auxiliary structure to separate different sublayers, so that the auxiliary structure can simulate the touch structure and act on the CUP area through the multi-layer auxiliary structure with a better effect.

FIG. 9 illustrates a partial enlarged plan view of another display panel consistent with various embodiments of the present disclosure. FIG. 9 should be understood together with the cross-sectional view of the touch function layer 500 in the present specification.

Optionally, the display panel 100 further includes a second display area AA2, and a light transmittance of the second display area AA2 is smaller than a light transmittance of the first display area AA1.

Optionally, the display panel further includes the touch function layer 500.

Optionally, the touch function layer 500 is on a side of the display function layer 800 facing the display panel of the display panel 100.

Optionally, the touch function layer 500 includes a metal mesh 550 in the second display area AA2, and mesh openings of the metal mesh 550 are arranged corresponding to the pixels SP.

Optionally, the metal mesh 550 may belong to one of the conductive layers of the touch function layer described in the above embodiments.

Optionally, the metal mesh forms the touch electrodes. That is, the metal mesh can be used to form the first touch electrodes 521a and the second touch electrodes 521b described in the above embodiments. Advantages of a metal mesh in touch control is that the metal mesh has low impedance (less than 10 ohms) and high flexibility, which can be used to realize a soft display panel and improve bending reliability.

Optionally, the auxiliary structures 700 include a first auxiliary structure 710, and the first auxiliary structure 710 and the metal mesh 550 are on a same layer and are made of a same material. That is, the first auxiliary structures 710 are also made of a metal material.

Optionally, the metal mesh 550 includes metal lines (or referred to as mesh lines) crossing each other.

Optionally, the metal lines are arranged in intervals of the pixels SP. The metal lines are arranged around the pixels or the light-emitting elements and do not block light outputs of the light-emitting elements from a front view angle.

Optionally, the first auxiliary structures 710 are metal line segments.

Although the metal lines are arranged around the pixels or the light-emitting elements, and do not block lights emitted from front views of the light-emitting elements, but the metal lines intercept or block lights emitted at large viewing angles. Because of material properties, a reflectivity of an area where the metal mesh is arranged in the display panel intersects is different from reflectivities of other areas.

In the embodiment, on one hand, the metal mesh can solve a soft problem; on the other hand, although the metal mesh introduces the above reflection problem in the embodiment, by simulating the metal mesh lines arranged in the CUP area through the auxiliary structures, a difference between the CUP area and the conventional display area can be further improved in a targeted manner; on the other hand, a light transmission effect and a display effect of the CUP area need to be coordinated, and the auxiliary structures can balance the light transmission effect and the display effect under a condition of a desired size, the above metal lines are formed when the metal mesh is formed, and the desired size (line width) of the metal line is closer to a desired size of the auxiliary structures.

The first auxiliary structures 710 surround the light-emitting elements 350 in a non-closed manner. That is, the light-emitting elements 350 in the first display area AA1 are not surrounded by metal lines in 360 degrees. The surrounding can be understood as an orthographic projection parallel to the plane where the display panel is located, which considers both a transparent display and the display effect.

Optionally, the first auxiliary structures 710 are metal line segments, and a plurality of the first auxiliary structures 710 may be arranged along a path surrounding the light-emitting elements 350.

In one embodiment, considering a coordination between the light transmission effect and the display effect of the CUP area, the auxiliary structure can balance the light transmission effect and the display effect when surrounding the light-emitting elements in a non-closed manner, thereby enlarging a marginal utility of the auxiliary structure.

A positional relationship of film layers on different layers described in the embodiment can be understood as a positional relationship of the orthographic projection on the plane where the display panel is located.

FIG. 10 illustrates a partial enlarged plan view of another display panel consistent with various embodiments of the present disclosure. FIG. 10 is understood together with the cross-sectional view of the touch function layer 500 in the present disclosure.

Optionally, a distance from a mesh line of the metal mesh 500 to a pixel SP adjacent thereto is L1. A distance from an auxiliary structure 700 to a pixel SP adjacent thereto is L2; and L1≥L2. Through the above design, on one hand, the auxiliary structure occupying a setting space of the light-transmitting area can be avoided. On the other hand, compared with the conventional display area, a problem of large viewing angle of the CUP area is not only affected by some structures in the touch function layer, which is different from the conventional display area, but also affected by other structures, thereby adding more problems caused by a display difference between the CUP area and the conventional display area. By arranging the first auxiliary structures closer to the light-emitting elements, compensations of the auxiliary structures can be strengthened, a difference caused by the touch structures and the above difference caused by other problems can be compensated, thereby further reducing the display difference between the CUP and the conventional display area.

Referring to FIG. 10, optionally, a width of a mesh line of the metal mesh 550 is D1, a width of an auxiliary structure 700 is D2, and D2≤D1. A dimension in a width direction perpendicular to an extending direction of the mesh line is the line width. The line width may be a distance from a side of the auxiliary structure close to the light-emitting element to a side of the auxiliary structure away from the light-emitting element. Considering the coordination between the light transmission effect and the display effect of the CUP area, through the design of the embodiment, the auxiliary structure occupying the setting space of the light-transmitting area can be avoided.

Optionally, number of mesh lines between two adjacent pixels SP in the second display area AA2 is smaller than number of auxiliary structures between two adjacent pixels SP in the first display area AA1.

Optionally, in one embodiment, when comparing numbers, a counting direction is an extension direction perpendicular to an auxiliary structure or a metal line, or a counting direction is a direction of a connecting line with a smallest distance between two adjacent pixels SP, that is, directions of dotted lines in FIG. 10.

For example, in FIG. 10, number of metal lines between two adjacent pixels in the first display area AA1 is two, and number of metal lines between two adjacent pixels in the second display area is one.

After transmittances are balanced, a uniformity of large-angle shadings needs to be considered. Therefore, in one embodiment, number of dummy TP patterns (i.e., auxiliary structures of multiplexing metal meshes) between the pixels in the CUP area is greater than or equal to number of TP graphics in the normal area, which can balance the light transmission effect and the display effect, thereby enlarging a marginal utility of the auxiliary structure.

FIG. 11 and FIG. 12 are respectively partial enlarged top views of two other display panels consistent with various embodiments of the present disclosure. FIG. 11 or FIG. 12 is understood together with the cross-sectional view of the touch function layer 500 in the present disclosure. Optionally, a size of the auxiliary structure 700 is smaller than a size of the pixels SP adjacent thereto.

That is, in a direction parallel to the plane where the display panel is located, and perpendicular to a direction connecting the auxiliary structure 700 and the pixels SP adjacent thereto. A projection of the auxiliary structure 700 falls within a projection range of the pixels SP adjacent thereto. Specifically, in the direction parallel to the plane where the display panel is located, and perpendicular to the direction connecting the auxiliary structure 700 and the pixels SP adjacent thereto, a width of the auxiliary structure 700 is H2, a width of the pixels SP is H1, and H1≥H2.

The above design can make the auxiliary structures surround the pixels in a non-closed manner, which can prevent the auxiliary structures from connecting at pixel intervals, so that diagonal areas of the pixels have less influences on large-angle optical paths, and the transmittance and the display effect of the CUP are considered.

In addition, in some optional embodiments, referring to a top view of any of the first display areas in the present disclosure, the auxiliary structures are not arranged in the diagonal areas of the pixels, i.e., auxiliary structures are not arranged for areas surrounded by three or more pixels. For example, the pixels are arranged in arrays along a row direction and a column direction, and pixel spacings include a spacing extending along the row direction and a spacing extending along the column direction, and no auxiliary structures is arranged in an intersection area of the two types of spacing. The diagonal areas of the pixels can have less influences on the large-angle optical paths, so that the transmittance and the display effect of the CUP are considered.

In some other optional embodiments, a plurality of the auxiliary structures may be connected through transparent conductive structures and multiplexed as touch electrodes, which is not repeated herein.

FIG. 13 illustrates a partial enlarged plan view of another display panel consistent with various embodiments of the present disclosure. FIG. 13 is understood together with the cross-sectional view of the touch function layer 500 in the present disclosure.

Optionally, the auxiliary structures 700 extends along at least part of edges of a pixel SP adjacent thereto.

That is, extension paths of the auxiliary structure 700 are parallel to the edges of the pixel SP adjacent thereto. In other words, a minimum distance from any point on a same auxiliary structure 700 to the pixel SP adjacent thereto is same.

Optionally, a plurality of the auxiliary structures 700 is arranged around a pixel SP.

Through the above design, the auxiliary structures can be extended to follow an outline of the pixel, and improvement effects are consistent in different orientations, so that viewing effects at large angles in different orientations do not make much difference.

Optionally, an auxiliary structure can also be a small arc of a non-straight line. An arc is conductive to reducing an influence on a transmittance of a high-transmittance area. It should be noted that a shape of the auxiliary structure herein refers to an extension path of the auxiliary structure, or a shape of an orthographic projection of the auxiliary structure on the plane where the display panel is located.

Optionally, arc-shaped auxiliary structures have different radians around the pixels SP of different sizes in the first display area AA1, to match opening areas of the pixels of different sizes.

In some embodiments, optionally, a distance from a mesh line of the metal mesh 500 to a pixel SP adjacent thereto is L1, a distance from an auxiliary structure 700 to a pixel SP adjacent thereto is L2, and L1=L2.

In some embodiments, reference is made to any of top views of the present specification relating to auxiliary structures. Optionally, a connecting line with a minimum distance between two adjacent pixels SP overlaps an auxiliary structure 700. A dashed line passing through the two adjacent pixels SP may represent a connecting line with a minimum distance between the two adjacent pixels SP. It can be understood that the connecting line is a virtual artificially defined line but not a solid structure.

Optionally, for pixels of a same color, a distance from a mesh line of the metal mesh 500 to a pixel SP adjacent thereto is L1, a distance from an auxiliary structure 700 to a pixel SP adjacent thereto is L2, and L1=L2.

Optionally, for pixels of different colors, a distance from a mesh line of the metal mesh 500 to a pixel SP adjacent thereto may be different from a distance from an auxiliary structure 700 to a pixel SP adjacent thereto.

In one embodiment, a dummy TP segmented metal pattern (i.e., an auxiliary structure of multiplexing the metal mesh) is arranging in a direction of a minimum spacing between opening areas of light-emitting pixels in the high-transmittance area of the CUP, so that a minimum distance between edges of a dummy metal pattern in the CUP area and opening areas of the pixels adjacent thereto of a specific color is same as a minimum distance between the TP metal edges in the normal area (i.e., the conventional display area) and opening areas of pixels of a same color.

A position and distance relationship of a matched auxiliary structures can be adjusted according to the pixels of different colors, and at a same time, the pixels of a same color can be kept as consistent as possible in the normal area and the CUP area. That is, the display effect of the CUP is compensated, and the pixels of a same color are also affected as consistently as possible.

For example, according to actual viewing angle biases and requirements, distances to the auxiliary structures that the pixels of different colors should match can be designed.

Optionally, a path of an auxiliary structure 700 intersects a path of the connecting line.

Optionally, the auxiliary structure 700 is symmetrical about the connecting line. Optionally, a size of the auxiliary structure 700 is smaller than sizes of pixels SP adjacent thereto. Through the above design, the auxiliary structures surround the pixels in a non-closed manner, so that the auxiliary structures can be prevented from being connected at pixel intervals, so that the transmittance and the display effect of the CUP can be considered. And it can be ensured that the auxiliary structures corresponding to a same pixel can be fully utilized instead of co-nesting around a same orientation of the same pixel.

FIG. 14 illustrates a partial enlarged plan view of another display panel consistent with various embodiments of the present disclosure. FIG. 14 is understood together with the cross-sectional view of the touch function layer 500 in the present disclosure. Optionally, in the first display area AA1, arrangement conditions of the auxiliary structures 700 around at least two pixels are different.

The arrangement conditions may include that number of auxiliary structures 700, sizes and distances to the pixels SP adjacent to the auxiliary structures 700 are different.

In one embodiment, the auxiliary structures in different arrangement conditions can be arranged for different pixels, and light output effects for different pixels can be improved through the auxiliary structures.

Optionally, the pixels include at least one first pixel and at least one second pixel, and the first pixel and the second pixel are different in area and/or color.

Optionally, arrangements of the auxiliary structures around the first pixels are different from arrangements of the auxiliary structures around the second pixels. Numbers, sizes, and distances of the auxiliary structures around the first pixels and the auxiliary structures around the second pixels are different.

In some embodiments, in the first display area AA1, that is, in the high-transmittance area of the CUP, patterns, numbers and positions of the auxiliary structures may be different between different pixels. For example, at peripheries of some wavelength pixels that are insensitive to human eyes or have small emitting angles, no or less auxiliary structures may be provided, which is conductive to reducing an influence on transmittance.

FIG. 15 illustrates a partially enlarged top view of another display panel consistent with various embodiments of the present disclosure. FIG. 16 can be understood together with FIG. 15. FIG. 16 illustrates a partial cross-sectional view along a B-B direction in FIG. 15. The cross section is perpendicular to the plane where the display panel is located.

Optionally, the pixel SP includes at least one first pixel SP1 and at least one second pixel SP2, the first pixel SP1 includes a first light-emitting element 350-1, and the second pixel SP2 includes a second light-emitting element 350-2.

Optionally, no auxiliary structures are arranged around the first pixels SP1, and the auxiliary structures are arranged around the second pixels SP2.

FIG. 17 illustrates a partially enlarged top view of another display panel consistent with various embodiments of the present disclosure. FIG. 18 can be understood together with FIG. 17. FIG. 18 illustrates a partial cross-sectional view along a C-C direction in FIG. 17. The cross section is perpendicular to the plane where the display panel is located

Different from the above embodiment, optionally, the pixels SP include at least one first pixel SP1 and at least one second pixel SP2, the first pixel SP1 includes a first light-emitting element 350-1, and the second pixel SP2 includes a second light-emitting element 350-2.

Optionally, the auxiliary structures around the first light-emitting element 350-1 (i.e., the first pixel SP1) have only one layer, and the auxiliary structures arranged around the second light-emitting element 350-2 (i.e., the second pixel SP2) have two sublayers.

FIG. 19 can be understood in conjunction with FIG. 17. FIG. 19 illustrates another partial cross-sectional view along the C-C direction in FIG. 17. The cross section is perpendicular to the plane where the display panel is located. The auxiliary structures 700 around different pixels SP are on different layers. Specifically, the pixels SP include at least one first pixel SP1 and at least one second pixel SP2, the auxiliary structures 700 around the first pixels SP1 and the auxiliary structures 700 around the second pixels SP2 are on different layers.

Optionally, the auxiliary structures 700 include first auxiliary structures 710 and second auxiliary structures 720 that are on different film layers. The first auxiliary structures 710 are arranged around the first pixels SP1, and the second auxiliary structures 720 are arranged around the second pixels SP2.

Optionally, the first auxiliary structures 710 and the first touch conductive layer 521 are on a same layer and are made of a same material; the second auxiliary structures 720 and the second touch conductive layer 522 are on a same layer and are made of a same material.

In some embodiments, the auxiliary structures may include a plurality of sublayers, and the auxiliary structures around different pixels are not completely on a same layer. That is, as shown in FIG. 18, some sublayers in the auxiliary structures around different pixels are arranged on different layers, and some sublayers in the auxiliary structures around different pixels are arranged on a same layer. The auxiliary structures around the first pixels and the second pixels all include sublayers on the first touch conductive layer 521, but only the auxiliary structures around the second pixels also include sublayers on the second touch conductive layer 522.

In some embodiments, for example, as shown in FIG. 8, FIG. 18 and FIG. 19, optionally, the auxiliary structures