A display panel and display device

Abstract

This disclosure provides a display panel and a display device. The display panel includes a display area and a first area located within the display area. The display area includes a substrate, a pixel defining layer, a plurality of light-emitting elements, and a light-shielding layer sequentially disposed therefrom. The pixel defining layer has a plurality of first openings, and the light-emitting elements are located in the first openings. The light-shielding layer has a plurality of second openings, and the first area also has at least one third opening. Along the thickness direction of the display panel, the second openings overlap with the first openings, and the third opening does not overlap with the first opening. The display area includes a touch structure located between the light-emitting elements and the light-shielding layer. The touch structure includes a dummy electrode and a first touch electrode and a second touch electrode whose extension directions intersect. The dummy electrode, the first touch electrode, and the second touch electrode are insulated from each other. Along the thickness direction of the display panel, the first area overlaps with the dummy electrode. This disclosure adds a third opening and a dummy electrode to the first area, achieving a full-screen display and improving display uniformity.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and more particularly to a display panel and a display device. Background Technology

[0002] With the continuous development of display technology, display panels have been widely used in people's production and daily life. However, there are still some technical problems with existing display panels that need to be solved.

[0003] For example, there is user demand for full-screen displays. However, most existing display panels have holes punched in the display area, resulting in low screen-to-body ratios or black holes in the display area, which affects the display effect. Summary of the Invention

[0004] This disclosure provides a display panel and a display device to improve the screen-to-body ratio of the display panel.

[0005] According to one aspect of this disclosure, a display panel is provided, comprising: a display area and a first area located in the display area; The display area includes a substrate, a pixel defining layer, a plurality of light-emitting elements and a light-shielding layer arranged sequentially. The pixel defining layer has a plurality of first openings, and the light-emitting elements are located in the first openings. The light-shielding layer has a plurality of second openings. The light-shielding layer in the first area also has at least one third opening. Along the thickness direction of the display panel, the second openings overlap with the first openings, and the third openings do not overlap with the first openings. The display area includes a touch structure located between the light-emitting element and the light-shielding layer. The touch structure includes a dummy electrode and a first touch electrode and a second touch electrode whose extension directions intersect. The dummy electrode, the first touch electrode and the second touch electrode are insulated from each other. Along the thickness direction of the display panel, the first area overlaps with the dummy electrode.

[0006] According to another aspect of this disclosure, a display device is provided, comprising: a display panel as described above.

[0007] In this disclosure, the display area includes a first area; the light-shielding layer in the first area has a second opening corresponding to the light-emitting element, and also has at least one third opening; along the thickness direction of the display panel, the second opening overlaps with the first opening to meet the display requirements of the light-emitting element, and the third opening does not overlap with the first opening. Adding the third opening can improve the light transmittance of the first area, increase the screen ratio of the display panel, and achieve a full-screen display; the touch structure is located between the light-emitting element and the light-shielding layer, and the touch structure includes a first touch electrode, a second touch electrode, and a dummy electrode. Along the thickness direction of the display panel, the first area is designed to overlap with the dummy electrode. In this disclosure, the line width, area, and layout of the dummy electrodes can be flexibly adjusted within the limited wiring space of the first area. This ensures that the dummy electrodes do not overlap with the second or third opening, and also prevents the dummy electrodes from leaking out. This avoids interfering with the display of the light-emitting element or affecting the optical function of the first optical device, thus guaranteeing the display effect and under-display optical function of the display panel. Furthermore, since the dummy electrodes do not perform touch functions, the line width, area, and layout of the dummy electrodes can be flexibly adjusted within the limited wiring space of the first area without affecting the function of the touch structure. Additionally, setting dummy electrodes in the first area can reduce the difference in light transmittance and display brightness between the touch electrode coverage area and the first area, improving display uniformity and thus enhancing display quality.

[0008] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of a display panel provided in an embodiment of this disclosure; Figure 2 yes Figure 1 A sectional view along A1-A2; Figure 3 This is a schematic diagram of a touch structure provided in an embodiment of this disclosure; Figure 4 This is a schematic diagram of yet another display panel provided in an embodiment of this disclosure; Figure 5 yes Figure 4 A schematic diagram of a local AR2 region; Figure 6 yes Figure 4 A schematic diagram of AR3 in a local area of ​​the middle region; Figure 7 yes Figure 4 A schematic diagram of a local AR4 region; Figure 8 yes Figure 1 A schematic diagram of a local region AR1 in the middle; Figure 9 yes Figure 1 A schematic diagram of another local region AR1 in the image; Figure 10 yes Figure 4 A schematic diagram of another local region AR3; Figure 11 This is a schematic diagram of another touch structure provided in an embodiment of this disclosure; Figure 12 This is a schematic diagram of yet another touch structure provided in this embodiment; Figure 13 This is a schematic diagram of yet another touch structure provided in this embodiment; Figure 14 This is a schematic diagram of yet another touch structure provided in this embodiment; Figure 15 yes Figure 11 Sectional view along A3-A4; Figure 16 yes Figure 11 Sectional view along A5-A6; Figure 17 yes Figure 11 Another sectional view along A3-A4; Figure 18 yes Figure 11 Another sectional view along A5-A6; Figure 19 yes Figure 1 A schematic diagram of another type of local AR1 region; Figure 20 yes Figure 1 A schematic diagram of another type of local AR1 region; Figure 21 yes Figure 1 A schematic diagram of another type of local AR1 region; Figure 22 This is a schematic diagram of a display device provided in an embodiment of the present disclosure. Detailed Implementation

[0011] To enable those skilled in the art to better understand the present disclosure, the technical solutions of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present disclosure, and not all embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present disclosure.

[0012] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0013] Figure 1 This is a schematic diagram of a display panel provided in an embodiment of this disclosure. Figure 2 yes Figure 1 A sectional view along A1-A2, Figure 3 This is a schematic diagram of a touch structure provided in an embodiment of this disclosure, with reference to... Figures 1 to 3 As shown, the display panel includes: a display area 101 and a first area 102 located in the display area 101; the display area 101 includes a substrate 103, a pixel defining layer 104, a plurality of light-emitting elements 105 and a light-shielding layer 106 arranged sequentially, the pixel defining layer 104 having a plurality of first openings 107, the light-emitting elements 105 being located in the first openings 107, the light-shielding layer 106 having a plurality of second openings 108, and the light-shielding layer 106 in the first area 102 also having at least one third opening 109; along the thickness direction Z of the display panel, the second Opening 108 overlaps with the first opening 107, and the third opening 109 does not overlap with the first opening 107; the display area 101 includes a touch structure 110 located between the light-emitting element 105 and the light-shielding layer 106. The touch structure 110 includes a first touch electrode 111 and a second touch electrode 112 with intersecting extension directions, as well as a dummy electrode 113. The dummy electrode 113, the first touch electrode 111, and the second touch electrode 112 are insulated from each other; along the thickness direction Z of the display panel, the first area 102 overlaps with the dummy electrode 113.

[0014] In this embodiment, the display panel includes a display area 101 for displaying images. Specifically, the display area 101 includes a first area 102, and the display area in the display area 101 excluding the first area 102 is marked as 101A. The first area 102 in the display area 101 can be located near the upper or lower end of the display area 101, and the first area 102 in the display area 101 can occupy part or all of the display area 101. In this disclosure, the number, shape, area, and position of the first areas in the display area are not specifically limited. Relevant personnel can reasonably design the number, shape, area, and position of the first areas in the display area according to the product requirements. Figure 1 The first area 102 can be a circle, and the first area 102 is located on the upper side of the display area 101.

[0015] The display panel includes a substrate 103, which has a multi-layer stacked structure. The substrate 103 serves as the basic support structure for the entire display panel. The substrate 103 includes at least a base made of materials such as glass or polyimide (PI) and a buffer layer formed on the base. The substrate 103 can be a flexible substrate or a rigid substrate. This embodiment does not specifically describe the specific layer structure of the substrate 103. It can be understood that other layers of the display panel, such as pixel defining layers and touch structures, are located on the side of the buffer layer facing away from the base. The thickness direction Z of the display panel is perpendicular to the plane containing the substrate 103.

[0016] The display panel includes a pixel defining layer 104, which is located on one side of the substrate 103. Within the display area 101, the pixel defining layer 104 has a plurality of first openings 107, each corresponding to a plurality of light-emitting elements 105, with the light-emitting elements 105 located within their respective first openings 107. Specifically, the light-emitting elements 105 fill the corresponding first openings 107, and each first opening 107 defines the light-emitting area of ​​its corresponding light-emitting element 105. Depending on the product requirements, the pixel defining layer 104 can be made of a non-black pixel defining layer; alternatively, depending on the product requirements, the pixel defining layer 104 can be made of a black pixel defining layer (BPDL). The black pixel defining layer is made of a black-based material, which can reduce light reflection within the display panel and improve the display effect. It is understood that other film layer structures also exist between the substrate 103 and the pixel defining layer 104; some of these film layers will be described in detail in subsequent embodiments.

[0017] The display panel includes at least a display area 101 comprising multiple light-emitting elements 105. Typically, the light-emitting elements 105 are mainly divided into three categories based on color: a first-color light-emitting element, a second-color light-emitting element, and a third-color light-emitting element. The first-color, second-color, and third-color light-emitting elements can each emit different colors. Multiple first-color, second-color, and third-color light-emitting elements are arranged according to certain rules to enable the display area 101 to display color images. For example, the first-color light-emitting element can be a red light-emitting element, the second-color light-emitting element can be a blue light-emitting element, and the third-color light-emitting element can be a green light-emitting element. The first-color, second-color, and third-color light-emitting elements can be arranged in an array. However, this is not the only possibility. Those skilled in the art can reasonably configure the light emission colors of the first color light-emitting element, the second color light-emitting element, and the third color light-emitting element according to the product requirements. In further embodiments, the light-emitting element may also include a fourth color light-emitting element, which may be a white light-emitting element or a yellow light-emitting element, etc. In this disclosure, the light emission color, the type of light-emitting element, and the pixel arrangement of the light-emitting element of the display panel can be set according to actual needs. This disclosure does not impose specific limitations on these aspects.

[0018] The optional light-emitting element 105 is an organic light-emitting diode (OLED), but is not limited to this.

[0019] The display panel includes a light-shielding layer 106, which is located on the side of the pixel-defining layer 104 facing away from the substrate 103. The light-shielding layer 106 can block light. Within the display area 101, the light-shielding layer 106 has a plurality of second openings 108, which correspond to a plurality of light-emitting elements 105. Along the thickness direction Z of the display panel, the orthographic projection of the second opening 108 on the pixel-defining layer 104 overlaps with the corresponding first opening 107. Obviously, the second opening 108 is a structure that does not block light, so the second opening 108 can also be defined as the opening area of ​​the light-shielding layer 106. Correspondingly, under normal circumstances, the area outside the opening of the light-shielding layer 106 is defined as the non-opening area of ​​the light-shielding layer 106. The non-opening area of ​​the light-shielding layer 106 is the light-shielding layer 106 that is actually made of light-shielding material. The light-shielding layer 106 can block light, that is, the non-opening area of ​​the light-shielding layer 106 can block light.

[0020] Optionally, along the thickness direction Z of the display panel, the orthographic projection of the second opening 108 onto the pixel limiting layer 104 covers the corresponding first opening 107. Then, the light emitted by the light-emitting element 105 located in the first opening 107 can exit through the second opening 108, achieving display. Specifically, the second opening 108 has a lower opening near the pixel limiting layer 104, an upper opening away from the pixel limiting layer 104, and an opening sidewall connecting the upper and lower openings. Similarly, the first opening 107 has a lower opening near the substrate 103, an upper opening away from the substrate 103, and an opening sidewall connecting the upper and lower openings. Optionally, along the thickness direction Z of the display panel, the lower opening of the second opening 108, in the orthographic projection of the pixel limiting layer 104, surrounds the lower opening of the first opening 107. This avoids the lower opening of the second opening 108 blocking the light emitted by the light-emitting element 105, which is beneficial for improving the emissivity of the light-emitting element 105 and thus improving the display brightness of the display panel. Furthermore, optionally along the thickness direction Z of the display panel, the lower opening of the second opening 108 surrounds or overlaps the upper opening of the first opening 107 in the orthographic projection of the pixel limiting layer 104. In this way, the light-shielding layer 106 can block the large-angle light emitted by the light-emitting element 105, reduce the color shift and crosstalk of the display panel, and help improve the display effect of the display panel.

[0021] The optional light-shielding layer 106 is a black matrix (BM). The black matrix is ​​made of a black-based material, which can reduce the reflection of light emitted by the light-emitting element 105 inside the display panel, block crosstalk of large-angle light emitted by the light-emitting element 105, and block external light from entering the display panel, thereby improving the display effect. Depending on the product requirements, the material of the light-shielding layer 106 can be made of a black-based material; alternatively, depending on the product requirements, the material of the light-shielding layer 106 can be made of other non-black-based materials, which will not be elaborated here. It is understood that there are other film layer structures between the pixel limiting layer 104 and the light-shielding layer 106, some of which will be described in detail in subsequent embodiments.

[0022] In this embodiment, display area 101 displays, and correspondingly, first area 102 and display region 101A can also display. The distribution density of light-emitting elements 105 in display region 101A can be the same as or different from the distribution density of light-emitting elements 105 in first area 102. The arrangement of multiple light-emitting elements 105 in display region 101A can also be the same as or different from the arrangement of multiple light-emitting elements 105 in first area 102. Specifically, the distribution density of light-emitting elements 105 in optional display region 101A may be greater than or equal to the distribution density of light-emitting elements 105 in first area 102, and / or, the arrangement of light-emitting elements 105 in optional display region 101A may be the same as the arrangement of light-emitting elements 105 in first area 102.

[0023] The light-shielding layer 106 in the first region 102 has at least one third opening 109. Along the thickness direction Z of the display panel, the third opening 109 does not overlap with the first opening 107. The pixel defining layer 104 has a first opening 107, and the light-emitting element 105 is located in the first opening 107. Here, the first opening 107 is defined as the light-emitting area of ​​the pixel defining layer 104. Correspondingly, the area of ​​the pixel defining layer 104 other than the first opening 107 is defined as the non-light-emitting area of ​​the pixel defining layer 104. Where required by the product, the non-light-emitting area of ​​the pixel defining layer 104 can be provided with structures such as grooves, through holes, or support pillars. Along the thickness direction Z of the display panel, the third opening 109 does not overlap with the first opening 107. The orthographic projection of the third opening 109 onto the pixel defining layer 104 is located in the non-light-emitting area of ​​the pixel defining layer 104. Therefore, the third opening 109 will not affect the light-emitting area of ​​the light-emitting element 105, ensuring the normal display function of the display panel. The third opening 109 is a structure that does not block light. Along the thickness direction Z of the display panel, the area defined by the third opening 109 constitutes an additional light-transmitting area of ​​the first region 102. Therefore, at least one third opening 109 is added to the light-shielding layer 106 of the first region 102. Light passing through the third opening 109 can increase the light transmittance of the first region 102.

[0024] Furthermore, a third opening 109 is formed by creating a new opening between two adjacent second openings 108 in the light-shielding layer 106 of the first region 102. Since the light-emitting elements 105 are densely arranged in the display area 101, the second openings 108 in the light-shielding layer 106 are also densely arranged. Consequently, the size of the light-shielding portion between two adjacent second openings 108 in the light-shielding layer 106 is relatively small. Therefore, the area of ​​the newly created third opening 109 in the light-shielding portion between two adjacent second openings 108 must be relatively small. The area of ​​the third opening 109 is smaller than the area of ​​the first opening 107, and the area of ​​the third opening 109 is smaller than the area of ​​the second opening 108. Therefore, even if multiple third openings 109 are newly dug in the original non-opening area of ​​the light-shielding layer 106 of the first zone 102, the area ratio of the third openings 109 in the first zone 102 will actually be very small. As an additional light-transmitting area of ​​the first zone 102, the third openings 109 bring very little increase to the visible light reflectivity of the first zone 102. In other words, the newly added third openings 109 in the first zone 102 will not cause the first zone 102 to have a serious dark visual effect, and the third openings 109 have little impact on the display effect of the display panel.

[0025] The optional first region 102 may further include a first optical device 201, which is located on the side of the substrate 103 opposite to the light-shielding layer 106. Optionally, along the thickness direction Z of the display panel, the first optical device 201 overlaps with at least one third opening 109.

[0026] In this embodiment, the first area 102 can perform normal display. Adding at least one third opening 109 to the light-shielding layer 106 of the first area 102 can further improve the light transmittance of the first area 102, increasing the amount of light passing through it and enabling the first area 102 to achieve light transmission. Based on this, the first area 102 can serve as a light-transmitting area in the display area 101. Setting a first optical device 201 in the first area 102 can meet the light-sensing requirements of the first optical device 201 and improve its optical detection accuracy. The first optical device 201 can be an optical device that senses visible light, infrared light, or other types of light. The first optical device 201 can be a photosensitive device, such as a camera, infrared photosensitive device, face recognition sensor, fingerprint recognition sensor, etc. Setting the first optical device 201 in the first area 102 can increase the screen-to-body ratio of the display panel, meet the user's full-screen requirements, and improve the display effect.

[0027] Taking the first optical device 201 as an example of an optical device for sensing visible light, the light transmittance of the second opening 108 in the light-shielding layer 106 is greater than 80%, and the light transmittance of the non-opening area of ​​the light-shielding layer 106 is less than 2%. In this embodiment, one or more third openings 109 are added to the light-shielding layer 106 in the first region 102, thereby increasing the area ratio of the opening area of ​​the light-shielding layer 106 in the first region 102. The third opening 109, as an opening area, makes the transmittance in the visible light band greater than 80%. Therefore, adding at least one third opening 109 to the light-shielding layer 106 in the first region 102 can effectively increase the light transmittance of the first region 102. Furthermore, in the first region 102, a small third opening 109 is formed by creating a new opening in the original non-opening area of ​​the light-shielding layer 106. Therefore, the total area of ​​the newly added third opening 109 accounts for a very small proportion of the first region 102. Consequently, the newly added third opening 109 in the first region 102 will not significantly increase the visible light reflectivity of the first region 102. In other words, the increase in visible light reflectivity of the first region 102 is very small, and the first region 102 will not experience severe dark-state visual effects, thus ensuring a good display effect of the display panel. Based on this, the first region 102 can serve as a photosensitive aperture (LS aperture) of the display panel. The corresponding optical device can be disposed on the side of the substrate 103 away from the light-shielding layer 106. The optical device overlaps with at least one third opening 109, so the optical device can sense visible light through the second opening 108 and the third opening 109, thereby realizing the corresponding function in the display area 101.

[0028] In other embodiments, the first region 102 can serve as an infrared aperture (IR aperture) for sensing infrared light. Correspondingly, the first optical device 201 can be an infrared photosensitive device for sensing infrared light. The infrared photosensitive device is disposed on the side of the substrate 103 away from the light-shielding layer 106. The infrared photosensitive device overlaps with at least one third opening 109. The infrared photosensitive device can sense infrared light through the second opening 108 and the third opening 109, thereby realizing the corresponding function in the display area 101. Specifically, the infrared light transmittance of the open area in the light-shielding layer 106 is greater than 80%, and the infrared light transmittance of the non-open area in the light-shielding layer 106 is less than 2%. One or more third openings 109 are added to the light-shielding layer 106 in the first region 102, which increases the area ratio of the open area in the light-shielding layer 106 in the first region 102, which is beneficial to improving the transmittance of the infrared light band in the first region 102. In addition, the newly added third openings 109 in the first region 102 result in a very small increase in the visible light reflectance of the first region 102, and the first region 102 will not have a serious dark visual effect, thus ensuring a good display effect of the display panel.

[0029] As described above, in the first region 102, a plurality of third openings 109 are formed by excavating new openings in the light-shielding area of ​​the light-shielding layer 106 other than the second opening 108. Along the thickness direction Z of the display panel, the third openings 109 do not overlap with the first openings 107. That is to say, along the thickness direction Z of the display panel, the third openings 109 do not overlap with the light-emitting area of ​​the light-emitting element 105. Therefore, they do not affect the display function of the display panel. The third openings 109 in the first region 102 can improve the light transmittance of the first region 102, which is beneficial for setting optical devices in the first region 102, thereby realizing the corresponding functions in the display area 101 and improving the screen ratio of the display panel.

[0030] In this embodiment, the display area 101 further includes a touch structure 110 located between the light-emitting element 105 and the light-shielding layer 106. The touch structure 110 includes a first touch electrode 111 and a second touch electrode 112 whose extending directions intersect, and the first touch electrode 111 and the second touch electrode 112 are insulated from each other. Specifically, the touch structure 110 can be formed using TPOT (Touch Panel on TFE) technology to form an embedded touch structure, that is, the touch structure 110 can be located between the light-emitting element 105 and the light-shielding layer 106; but it is not limited to this. In the touch structure 110, the first touch electrode 111 and the second touch electrode 112 are used to realize capacitive touch function. The first touch electrode 111 is located at least in the display area 101, and the second touch electrode 112 is located at least in the display area 101, so that the display area 101 has capacitive touch function. When a finger approaches or touches the display area 101 of the display panel, the human body, as a conductor, changes the local electric field at the contact point, thereby affecting the capacitance value between the first touch electrode 111 and the second touch electrode 112 at that contact point. Therefore, by detecting the change in capacitance signal between the first touch electrode 111 and the second touch electrode 112, the position of the finger can be accurately located, realizing the touch function of the display area 101. In the optional touch structure 110, the first touch electrode 111 extends along the first direction Y, and multiple first touch electrodes 111 are arranged along the second direction X. The second touch electrode 112 extends along the second direction X, and multiple second touch electrodes 112 are arranged along the first direction Y. The first direction Y and the second direction X intersect.

[0031] Figure 4 This is a schematic diagram of yet another display panel provided in an embodiment of this disclosure. Figure 5 yes Figure 4 A schematic diagram of a local AR2 region. Figure 6 yes Figure 4 A schematic diagram of AR3 in a local area of ​​the middle region. Figure 7 yes Figure 4 The schematic diagram of a local AR4 region is understandable. Figure 3 The touch structure shown is Figure 4 A partial view of the touch structure in the display panel shown. (Reference) Figures 1 to 7As shown, the display area 101 is provided with densely arranged light-emitting elements 105. The light-emitting elements 105 emit light to make the display area 101 display image content. The touch structure 110 is located between the light-emitting elements 105 and the light-shielding layer 106. Therefore, along the thickness direction Z of the display panel, the light emitted by the light-emitting elements 105 will pass through the touch structure 110 and be emitted. Based on this, the electrodes in the touch structure 110 are all metal mesh structures. Specifically, the first touch electrode 111 and the second touch electrode 112 are both metal mesh structures. The metal mesh structure forms multiple metal mesh holes 114. Along the thickness direction Z of the display panel, the orthographic projection of the metal mesh holes 114 on the pixel limiting layer 104 surrounds the light-emitting element 105. In other words, the orthographic projection of the metal mesh holes 114 on the pixel limiting layer 104 is located in the non-light-emitting area of ​​the pixel limiting layer 104, or the orthographic projection of the metal mesh holes 114 on the pixel limiting layer 104 surrounds the first opening 107. In this case, the orthographic projection of one metal mesh hole 114 on the pixel limiting layer 104 can surround one or more light-emitting elements 105. Therefore, the light emitted by the light-emitting element 105 will pass through the metal mesh holes 114 and be emitted.

[0032] The first touch electrode 111 has metal mesh 114 including multiple closed meshes, and may also have multiple open meshes. The second touch electrode 112 has metal mesh 114 including multiple closed meshes, and may also have multiple open meshes. In the touch electrodes, the metal mesh 114 is a closed mesh, and its orthographic projection on the pixel limiting layer 104 completely surrounds the light-emitting element 105. The open meshes in the touch electrodes, in their orthographic projection on the pixel limiting layer 104, partially surround the light-emitting element 105. For example... Figure 5 , Figure 6 and Figure 7 As shown in the figure, the metal mesh indicated by mark 114 is a closed mesh.

[0033] The display panel incorporates touch electrodes designed for touch functionality. Along the thickness direction Z of the display panel, the outlines of the first touch electrode 111 and the second touch electrode 112 cover most of the light-emitting elements 105. However, the first touch electrode 111 and the second touch electrode 112 do not completely cover the display area 101. Figure 4As illustrated in the example, a gap exists between the first touch electrode 111 and the second touch electrode 112. In this disclosure, the display area in display area 101 covered by the first touch electrode 111 and the second touch electrode 112 is defined as the touch electrode covered area, and the corresponding display area in display area 101 not covered by the first touch electrode 111 and the second touch electrode 112 is defined as the non-touch electrode area. It is understood that the non-touch electrode areas in display area 101 are not a continuous or closed whole area, but are scattered throughout display area 101. In other embodiments, a non-touch electrode area in the display area may be located between two adjacent touch electrodes, or a non-touch electrode area in the display area may be located inside a touch electrode, without specific limitations. It should be noted that the covering relationship and overlapping relationship described in this disclosure refer to the covering or overlapping relationship of the outline shapes of two structures projected onto the substrate 103 along the thickness direction Z of the display panel.

[0034] by Figure 4 and Figure 5 The region AR2 shown is illustrated as an example. Region AR2 in display area 101 includes a first touch electrode 111, a second touch electrode 112, and a non-touch electrode region 101B located between the first touch electrode 111 and the second touch electrode 112. Along the thickness direction Z of the display panel, light emitted by the light-emitting element 105 in the touch electrode covered area passes through the metal mesh 114 of the first touch electrode 111 or the second touch electrode 112 and is emitted, while light emitted by the light-emitting element 105 in the non-touch electrode region 101B does not pass through the first touch electrode 111 and the second touch electrode 112. Because the first touch electrode 111 and the second touch electrode 112 in the touch electrode coverage area block the large-angle light or natural light emitted by the light-emitting element 105, the transmittance of the light emitted by the light-emitting element 105 in the touch electrode coverage area is less than that in the non-touch electrode area 101B. As a result, the light transmittance in the touch electrode coverage area is less than that in the non-touch electrode area 101B, which leads to a lower display brightness in the touch electrode coverage area than in the non-touch electrode area 101B, easily causing uneven display.

[0035] by Figure 4 and Figure 6The area AR3 shown is used as an example. To improve the display uniformity of the display area 101, the touch structure 110 also includes multiple dummy electrodes 113. The dummy electrodes 113 are connected to a fixed potential (e.g., ground potential) or are suspended. The dummy electrodes 113, the first touch electrode 111, and the second touch electrode 112 are insulated from each other. That is, the dummy electrodes 113 and the first touch electrode 111 are insulated from each other, the dummy electrodes 113 and the second touch electrode 112 are insulated from each other, and the first touch electrode 111 and the second touch electrode 112 are insulated from each other. Specifically, one or more dummy electrodes 113 are provided in the non-touch electrode area of ​​the display area 101 along the thickness direction Z of the display panel. For example, the dummy electrode 113 in the touch structure 110 can be a metal mesh structure. The metal mesh structure of the dummy electrode 113 forms multiple metal mesh holes 115. Along the thickness direction Z of the display panel, the orthographic projection of one metal mesh hole 115 onto the pixel limiting layer 104 can surround one or more light-emitting elements 105. In other words, the orthographic projection of the metal mesh hole 115 onto the pixel limiting layer 104 is located in the non-light-emitting area of ​​the pixel limiting layer 104, so the light emitted by the light-emitting element 105 will pass through the metal mesh hole 115 and be emitted. The metal mesh holes 115 in the dummy electrode 113 include multiple closed mesh holes, and there may also be multiple open mesh holes in the dummy electrode 113. The orthographic projection of the open mesh holes onto the pixel limiting layer 104 partially surrounds the light-emitting element 105. The metal mesh holes 115 in the dummy electrode 113 are closed mesh holes, and their orthographic projection onto the pixel limiting layer 104 completely surrounds the light-emitting element 105. Figure 6 As shown in the figure, the actual metal mesh indicated by mark 115 is a closed mesh.

[0036] It should be noted that the shape, area, and other parameters of the metal mesh 114 in the first touch electrode 111, the metal mesh 114 in the second touch electrode 112, and the metal mesh 115 in the dummy electrode 113 can be the same or different, as long as they are reasonably designed, without specific limitations.

[0037] by Figure 4 and Figure 6The region AR3 shown is illustrated as an example. Region AR3 in display area 101 includes a first touch electrode 111, a second touch electrode 112, and a non-touch electrode region 101B located between the first touch electrode 111 and the second touch electrode 112. A dummy electrode 113 is disposed in the non-touch electrode region 101B. Along the thickness direction Z of the display panel, light emitted by the light-emitting element 105 in the touch electrode covered area passes through the metal mesh 114 of the first touch electrode 111 or the second touch electrode 112 and is emitted, while light emitted by the light-emitting element 105 in the non-touch electrode region 101B passes through the metal mesh 115 of the dummy electrode 113 and is emitted. Since the dummy electrode 113 in the non-touch electrode area 101B can block the large-angle light or natural light emitted by the light-emitting element 105, by setting multiple dummy electrodes 113 in the non-touch electrode area, the difference in light transmittance between the touch electrode covered area and the non-touch electrode area can be reduced, thereby reducing the difference in display brightness between the touch electrode covered area and the non-touch electrode area and improving display uniformity.

[0038] by Figure 4 and Figure 7 The region AR4 shown is illustrated as an example. Region AR4 in display area 101 includes a first touch electrode 111, a second touch electrode 112, a dummy electrode 113 located in the first region 102, and another dummy electrode 113 located in display area 101A. The dummy electrode 113 in the first region 102 can be located between the first touch electrode 111 and the second touch electrode 112, and the dummy electrode 113 in display area 101A can also be located between the first touch electrode 111 and the second touch electrode 112. For the first region 102 or the display area 101A, along the thickness direction Z of the display panel, the light emitted by the light-emitting element 105 corresponding to the dummy electrode 113 can pass through the metal mesh 115 of the dummy electrode 113 and exit. For the first area 102 or the display area 101A, along the thickness direction Z of the display panel, the light emitted by the light-emitting element 105 in the touch electrode covered area can pass through the metal mesh 114 of the first touch electrode 111 or the second touch electrode 112 and be emitted. Therefore, whether in the first area 102 or the display area 101A, the dummy electrode 113 will block the large-angle light or natural light emitted by the light-emitting element 105. Therefore, by setting multiple dummy electrodes 113 in the non-touch electrode area, the difference in light transmittance between the touch electrode covered area and the non-touch electrode area can be reduced, thereby reducing the difference in display brightness between the touch electrode covered area and the non-touch electrode area and improving display uniformity.

[0039] For the dummy electrode 113 in the touch structure 110, along the thickness direction Z of the display panel, the dummy electrode 113 can be disposed in one or more non-touch electrode areas of the display area 101. Specifically, along the thickness direction Z of the display panel, the dummy electrode 113 can be formed inside the touch electrode, or the dummy electrode 113 can be formed between two adjacent touch electrodes, or multiple dummy electrodes 113 can be formed not only inside the touch electrode but also between two adjacent touch electrodes. In the embodiments of this disclosure, provided that the dummy electrode 113, the first touch electrode 111, and the second touch electrode 112 are insulated from each other, the positional relationship between the dummy electrode 113, the first touch electrode 111, and the second touch electrode 112 along the thickness direction Z of the display panel can be specifically configured according to actual needs and is not limited to the above examples.

[0040] In this embodiment, along the thickness direction Z of the display panel, the first region 102 overlaps with the dummy electrode 113. The first region 102 is provided with densely arranged light-emitting elements 105, which emit light to enable the first region 102 to perform a display function, thereby increasing the screen-to-body ratio of the display area 101. To further improve the screen-to-body ratio of the display area 101, the first region 102 is also provided with a first optical device 201. By adding at least one third opening 109 to the light-shielding layer 106 of the first region 102, the light transmittance of the first region 102 can be improved, thereby satisfying the optical function of the first optical device 201 in the first region 102. Therefore, the wiring space left for the touch structure 110 in the first region 102 is extremely limited.

[0041] Figure 8 yes Figure 1 A schematic diagram of a local region AR1 in the middle, for reference. Figure 1 , Figure 7 and Figure 8 As shown, along the thickness direction Z of the display panel, at least a dummy electrode 113 is provided in the first area 102, and at least a first touch electrode 111 and a second touch electrode 112 are provided in the display area 101A. Figure 8(Not shown). Since the first region 102 includes the second opening 108 and the third opening 109, the wiring space in the first region 102 is limited. In this embodiment, a dummy electrode 113 that does not perform touch function is set in the first region 102. The line width LD, area, and layout of the dummy electrode 113 can be reasonably adjusted based on the wiring space in the first region 102, so that the wiring of the touch structure 110 can be adapted to the first region 102. For example, if the line width LD of the dummy electrode 113 in the first region 102 is less than or equal to the line width LTP1 of the first touch electrode 111 in the display area 101A, then the light-shielding layer 106 in the first region 102 along the Z direction can cover the metal electrode lines in the touch structure 110, avoiding the situation where the metal electrode lines in the first region 102 are exposed, which would lead to an increase in the reflectivity of the first region 102. This not only ensures the normal operation of the light-emitting element 105 and the first optical device 201 in the first region 102, but also improves the display uniformity. Similarly, the linewidth LD of the dummy electrode 113 in the first area 102 is less than or equal to the linewidth LTP2 of the second touch electrode 112 in the display area 101A. The linewidth LTP1 of the first touch electrode 111 and the linewidth LTP2 of the second touch electrode 112 can be the same or different.

[0042] It is understood that LD is merely a linewidth identifier for the metal lines constituting the dummy electrode 113, and is not used to characterize the linewidth value of the metal lines in the dummy electrode 113. The dummy electrode 113 includes a first dummy electrode 113A and a second dummy electrode 113B. LDA is defined as the linewidth identifier for the metal lines constituting the first dummy electrode 113A, and LDB is defined as the linewidth identifier for the metal lines constituting the second dummy electrode 113B. Those skilled in the art can reasonably design the linewidth LD value of the dummy electrode 113 according to product requirements; for example, the linewidth LD values ​​of dummy electrodes 113 at different locations within the first region 102 can be the same or different.

[0043] Similarly, LTP is merely a linewidth identifier for the metal lines constituting the touch electrode, and is not used to characterize the linewidth value of the metal lines in the touch electrode. Specifically, LTP1 is defined as the linewidth identifier for the metal lines constituting the first touch electrode 111, and LTP2 is defined as the linewidth identifier for the metal lines constituting the second touch electrode 112. Those skilled in the art can reasonably design the value of the linewidth LTP1 of the first touch electrode 111 and the value of the linewidth LTP2 of the second touch electrode 112 according to product requirements. For example, the values ​​of the linewidth LTP1 of the first touch electrode 111 and the linewidth LTP2 of the second touch electrode 112 can be the same or different; or, the values ​​of the linewidth LTP1 of the first touch electrode 111 at different locations can be the same or different; or, the values ​​of the linewidth LTP2 of the second touch electrode 112 at different locations can be the same or different.

[0044] Specifically, if conventional first touch electrodes 111 and second touch electrodes 112 are set in the first area 102, the conventional line width and layout of the touch electrodes may overlap with the second opening 108 or the third opening 109. In other words, the light-shielding layer 106 in the first area 102 cannot completely cover the first touch electrodes 111 and second touch electrodes 112, thereby interfering with the light transmittance of the light-emitting element 105, affecting the display of the light-emitting element 105 in the first area 102, and also interfering with the light transmittance of the third opening 109, affecting the optical function of the first optical device 201. The exposed touch electrodes will also increase the reflectivity, further interfering with the display effect of the display panel. In this embodiment, along the thickness direction Z of the display panel, the first region 102 and the dummy electrode 113 are designed to overlap. The dummy electrode 113 can be set in the first region 102, or the first region 102 and the dummy electrode 113 can partially overlap. Within the limited wiring space in the first region 102, the line width LD, area and layout of the dummy electrode 113 can be flexibly adjusted to ensure that the dummy electrode 113 does not overlap with the second opening 108 and the third opening 109, and there will be no leakage of the dummy electrode 113. Therefore, the dummy electrode 113 does not interfere with the light transmittance of the light-emitting element 105, nor does it affect the optical function of the first optical device 201, thus ensuring the display effect and under-screen optical function of the display panel.

[0045] If the first touch electrode 111 and the second touch electrode 112 are set within the first region 102, limiting the line width, area, and layout of the touch electrodes may affect the current conduction efficiency of the touch electrodes, reduce touch sensitivity, and ultimately lead to unresponsive touch structure 110. In this embodiment, the first region 102 and the dummy electrode 113 are designed to overlap along the thickness direction Z of the display panel. The dummy electrode 113 can be set within the first region 102, or the first region 102 and the dummy electrode 113 can partially overlap. Since the dummy electrode 113 does not perform touch functions, the line width LD, area, and layout of the dummy electrode 113 can be flexibly adjusted within the limited wiring space of the first region 102 without affecting the function of the touch structure 110.

[0046] If no touch structure 110 is provided in the first area 102, then the light transmittance of the first area 102, as a non-touch electrode area, may differ from the light transmittance of the touch electrode covered area, easily leading to uneven display. In this embodiment, the first area 102 and the dummy electrode 113 are designed to overlap along the thickness direction Z of the display panel. The dummy electrode 113 can be provided within the first area 102, or the first area 102 and the dummy electrode 113 can partially overlap. Therefore, providing the dummy electrode 113 within the first area 102, which is a non-touch electrode area, reduces the difference between the light transmittance emitted by the light-emitting element 105 in the touch electrode covered area and the light transmittance emitted by the light-emitting element 105 in the first area 102. This reduces the difference between the display brightness of the touch electrode covered area and the display brightness of the first area 102, improving display uniformity and thus improving display quality.

[0047] Based on this, along the thickness direction Z of the display panel, the first region 102 overlaps with the dummy electrode 113. The dummy electrode 113 can be disposed within the first region 102, or the first region 102 and the dummy electrode 113 can partially overlap. Since the dummy electrode 113 does not bear the touch function, the line width LD, area and layout of the dummy electrode 113 can be flexibly adjusted within the limited wiring space in the first region 102, so as to meet the light transmittance of the light-emitting element 105 and the first optical device 201 in the first region 102, without affecting the touch function of the touch structure 110.

[0048] It should be noted that, with Figure 4 For example, the area of ​​the first region 102 shown can cover multiple touch electrode blocks along the Z direction, and the area of ​​the first region 102 along the Z direction can cover multiple dummy electrodes 113. It can be understood that... Figure 4 The coverage relationship between the first area 102 and the touch electrode block, and the coverage relationship between the first area 102 and the dummy electrode 113 are just examples; in reality, they are not always like this.

[0049] Taking a display panel actually used in a mobile phone as an example, the first area 102 of the display panel serves as the light-transmitting hole of the under-display optical device (first optical device 201). Generally, the diameter of the first area 102 is about 2mm, while the size of the outline shape of the touch unit (touch unit 120 in the following embodiment) is much larger than 2mm. Therefore, in practice, a touch unit along the Z direction may cover the first area 102, or even a touch electrode block along the Z direction may cover the first area 102.

[0050] Regarding the dummy electrode 113, taking a display panel actually used in a mobile phone as an example, the dummy electrode 113 in the display panel generally occupies a large area. For example, a single dummy electrode 113 (i.e., TP dummy) typically has a diameter of 0.5mm-0.8mm. There are multiple dummy electrodes 113 in a touch unit (i.e., a conventional TP pattern), and the total area of ​​the multiple dummy electrodes 113 in a touch unit is greater than or equal to the area of ​​a first region 102. In this case, the dummy electrode 113 of a touch unit can be located in the first region 102. That is, the dummy electrode 113 of the touch structure 110 is set in the first region 102, but the touch electrode of the touch structure 110 is not set in the first region 102. In other words, the first region 102 is arranged in the area where the dummy electrode of the touch unit is located. By reducing the linewidth LD of the dummy electrode 113, the light-shielding layer 106 in the first region 102 can cover the dummy electrode 113 of the touch structure 110 along the Z direction, thus not affecting the touch function of the touch structure 110. Furthermore, the diameter of the dummy electrode 113 in the first region 102 is designed to be approximately 2mm, and the area of ​​the touch electrodes near the first region 102 is adjusted to ensure the touch effect.

[0051] As described above, by setting the dummy electrode 113 in the first region 102 and reducing the line width LD of the dummy electrode 113, the light-shielding layer 106 of the first region 102 can cover the traces of the touch structure 110, or the traces of the touch electrode can be omitted from the first region 102 without affecting the touch performance of the touch structure 110.

[0052] Further reference Figure 7 As shown, when a touch electrode (taking the second touch electrode 112 as an example) is provided in the first region 102, the third opening 109 can be designed not to be provided in the area covered by the touch electrode in the first region 102. In other words, the third opening 109 in the first region 102 is provided in the area not covered by the touch electrode, that is, the third opening 109 in the first region 102 is provided in the area where the dummy electrode 113 is located. In the first region 102, the line width of the dummy electrode 113 is designed to be relatively narrow. Providing the third opening 109 in the area where the dummy electrode 113 is located is also beneficial to increasing the area or density of the third opening 109, thereby further improving the light transmittance of the first region 102.

[0053] In this disclosure, the display area includes a first area; the light-shielding layer in the first area has a second opening corresponding to the light-emitting element, and also has at least one third opening; along the thickness direction of the display panel, the second opening overlaps with the first opening to meet the display requirements of the light-emitting element, and the third opening does not overlap with the first opening. Adding the third opening can improve the light transmittance of the first area, increase the screen ratio of the display panel, and achieve a full-screen display; the touch structure is located between the light-emitting element and the light-shielding layer, and the touch structure includes a first touch electrode, a second touch electrode, and a dummy electrode. Along the thickness direction of the display panel, the first area is designed to overlap with the dummy electrode. In this disclosure, the line width, area, and layout of the dummy electrodes can be flexibly adjusted within the limited wiring space of the first area. This ensures that the dummy electrodes do not overlap with the second or third opening, and also prevents the dummy electrodes from leaking out. This avoids interfering with the display of the light-emitting element or affecting the optical function of the first optical device, thus guaranteeing the display effect and under-display optical function of the display panel. Furthermore, since the dummy electrodes do not perform touch functions, the line width, area, and layout of the dummy electrodes can be flexibly adjusted within the limited wiring space of the first area without affecting the function of the touch structure. Additionally, setting dummy electrodes in the first area can reduce the difference in light transmittance and display brightness between the touch electrode coverage area and the first area, improving display uniformity and thus enhancing display quality.

[0054] refer to Figure 2 , Figure 7 and Figure 8 As shown, optionally along the thickness direction Z of the display panel, either the dummy electrode 113, the first touch electrode 111, or the second touch electrode 112 may not overlap with the third opening 109.

[0055] In this embodiment, along the thickness direction Z of the display panel, the first touch electrode 111 does not overlap with the first opening 107, the second opening 108, or the third opening 109. In other words, the vertical projection of the first touch electrode 111 onto the pixel defining layer 104 is located in the non-light-emitting area of ​​the pixel defining layer 104, and the vertical projection of the first touch electrode 111 onto the light-shielding layer 106 is located in the non-opening area of ​​the light-shielding layer 106. Similarly, along the thickness direction Z of the display panel, the second touch electrode 112 does not overlap with the first opening 107, the second opening 108, or the third opening 109. The vertical projection of the second touch electrode 112 onto the pixel defining layer 104 is located in the non-light-emitting area of ​​the pixel defining layer 104, and the vertical projection of the second touch electrode 112 onto the light-shielding layer 106 is located in the non-opening area of ​​the light-shielding layer 106. Similarly, along the thickness direction Z of the display panel, the dummy electrode 113 does not overlap with the first opening 107, the second opening 108, or the third opening 109. The vertical projection of the dummy electrode 113 onto the pixel limiting layer 104 is located in the non-light-emitting area of ​​the pixel limiting layer 104, and the vertical projection of the dummy electrode 113 onto the light-shielding layer 106 is located in the non-opening area of ​​the light-shielding layer 106.

[0056] As described above, the touch structure 110 located between the light-emitting element 105 and the light-shielding layer 106 does not overlap with the first opening 107, the second opening 108, or the third opening 109. Therefore, none of the first touch electrode 111, the second touch electrode 112, or the dummy electrode 113 will affect the normal display of the light-emitting element 105, nor will it block the third opening 109, thus ensuring the light transmittance of the first area 102 and enabling the display panel to achieve normal display and under-screen optical functions.

[0057] refer to Figure 1 , Figure 4 , Figures 6 to 8 As shown, the optional dummy electrode 113 includes a first dummy electrode 113A and a second dummy electrode 113B. The linewidth LDA of the first dummy electrode 113A is less than or equal to the linewidth LDA of the second dummy electrode 113B. Along the thickness direction Z of the display panel, the first region 102 overlaps with the first dummy electrode 113A. Optionally, the width d1 of the non-opening portion between two adjacent openings of the light-shielding layer 106 is greater than or equal to the linewidth LDA of the first dummy electrode 113A. Optionally, along the thickness direction Z of the display panel, the first region 102 does not overlap with the second dummy electrode 113B.

[0058] In this embodiment, the first area 102 of the display panel includes at least one first dummy electrode 113A, and the display area 101A of the display panel other than the first area 102 includes at least one second dummy electrode 113B. The linewidth LDA of the first dummy electrode 113A is less than or equal to the linewidth LDB of the second dummy electrode 113B.

[0059] The light-shielding layer 106 of the display area 101 has multiple second openings 108, meaning that both the first area 102 and the display area 101A have multiple second openings 108. Compared to the light-shielding layer 106 in the display area 101A, the light-shielding layer 106 in the first area 102 also has multiple third openings 109. Therefore, the wiring space in the first area 102 is limited compared to the display area 101A. If the linewidth of the first dummy electrode 113A in the first area 102 is the same as that of the second dummy electrode 113B, or if the first area 102 overlaps with the second dummy electrode 113B with a larger linewidth, then the light-shielding layer 106 in the first area 102 may not be able to completely cover the dummy electrode 113. The exposed dummy electrode 113 in the first area 102 will increase the reflectivity of the first area 102, interfering with the display effect of the display panel. Based on this, the linewidth LDA of the first dummy electrode 113A in the first region 102 is designed to be less than or equal to the linewidth LDB of the second dummy electrode 113B in the display area 101A. Specifically, the linewidth LDA of the first dummy electrode 113A in the first region 102 can be designed to be less than the linewidth LDB of the second dummy electrode 113B in the display area 101A. Furthermore, the first region 102 is designed not to overlap with the second dummy electrode 113B, which has a larger linewidth. This avoids the situation where the light-shielding layer 106 in the first region 102 cannot completely cover the dummy electrode 113. While ensuring that the first region 102 achieves its optical function, this helps to reduce the difference in light transmittance and display brightness between the first region 102 and the display area 101A, thereby improving the display uniformity of the display panel.

[0060] Furthermore, for the first region 102, due to the provision of the third opening 109, the width d1 of the non-opening portion between two adjacent openings of the light-shielding layer 106 is relatively small. In order to ensure that the light-shielding layer 106 in the first region 102 completely covers the dummy electrode 113, the linewidth LDA of the first dummy electrode 113A in the first region 102 is designed to be less than or equal to the width d1 of the non-opening portion in the light-shielding layer 106. Thus, the non-opening portion between two adjacent openings in the light-shielding layer 106 in the first region 102 can completely cover the first dummy electrode 113A, thereby avoiding the situation where the light-shielding layer 106 in the first region 102 cannot completely cover the dummy electrode 113.

[0061] Figure 9 yes Figure 1 A schematic diagram of another local region AR1 in the image. Figure 10 yes Figure 4A schematic diagram of another local region AR3 is provided, in which at least one of a first dummy electrode 113A and a second dummy electrode 113B is selected, including multiple metal traces 116. Optionally, the metal traces 116 do not overlap with the third opening 109. Here, the metal trace 116 of the first dummy electrode 113A is labeled 116A, and the metal trace 116 of the second dummy electrode 113B is labeled 116B.

[0062] refer to Figure 9 As shown, the first dummy electrode 113A includes at least one metal trace 116A, and the multiple metal traces 116A of the first dummy electrode 113A do not form a closed mesh. Along the thickness direction Z of the display panel, the metal trace 116A in the first dummy electrode 113A does not overlap with the first opening 107, the second opening 108, or the third opening 109. In other words, the vertical projection of the metal trace 116A in the first dummy electrode 113A onto the pixel limiting layer 104 is located in the non-light-emitting area of ​​the pixel limiting layer 104, and the vertical projection of the metal trace 116A in the first dummy electrode 113A onto the light-shielding layer 106 is located in the non-opening area of ​​the light-shielding layer 106. Therefore, along the thickness direction Z of the display panel, the light emitted by the light-emitting element 105 can pass through the gap between the metal traces 116A in the first dummy electrode 113A and will not block the light emitted by the light-emitting element 105, which is beneficial to improving the display uniformity of the display panel.

[0063] refer to Figure 10 As shown, the second dummy electrode 113B includes at least one metal trace 116B, and the multiple metal traces 116B of the second dummy electrode 113B do not form a closed mesh. Along the thickness direction Z of the display panel, the metal traces 116B in the second dummy electrode 113B do not overlap with the first opening 107, the second opening 108, or the third opening 109. In other words, the vertical projection of the metal traces 116B in the second dummy electrode 113B onto the pixel limiting layer 104 is located in the non-light-emitting area of ​​the pixel limiting layer 104, and the vertical projection of the metal traces 116B in the second dummy electrode 113B onto the light-shielding layer 106 is located in the non-opening area of ​​the light-shielding layer 106. Therefore, along the thickness direction Z of the display panel, the light emitted by the light-emitting element 105 can pass through the gaps between the metal traces 116B in the second dummy electrode 113B and will not block the light emitted by the light-emitting element 105, which is beneficial to improving the display uniformity of the display panel.

[0064] As described above, the first dummy electrode 113A includes multiple metal traces 116A, and the metal traces 116A do not overlap with the opening in the light-shielding layer 106. And / or, the second dummy electrode 113B includes multiple metal traces 116B, and the metal traces 116B do not overlap with the opening in the light-shielding layer 106. Therefore, the first dummy electrode 113A and the second dummy electrode 113B will not affect the normal display of the light-emitting element 105, nor will they block the third opening 109, ensuring the light transmittance of the first area 102, enabling the display panel to achieve normal display and under-display optical functions.

[0065] refer to Figures 6 to 8 Optionally, at least one of the first dummy electrode 113A and the second dummy electrode 113B may include a metal mesh structure, the metal mesh structure including a plurality of metal mesh holes 115. Optionally, along the thickness direction Z of the display panel, the vertical projection of the metal mesh holes 115 onto the light-shielding layer 106 is located in the non-opening area of ​​the light-shielding layer 106. Optionally, along the thickness direction Z of the display panel, the vertical projection of the metal mesh holes 115 onto the light-shielding layer 106 may surround at least one third opening 109, and / or, the vertical projection of the metal mesh holes 115 onto the light-shielding layer 106 may surround at least one second opening 108. Here, the metal mesh hole 115 of the first dummy electrode 113A is marked as 115A, and the metal mesh hole 115 of the second dummy electrode 113B is marked as 115B.

[0066] refer to Figure 6 and Figure 7As shown, the second dummy electrode 113B includes a metal mesh structure, which comprises multiple metal mesh openings 115B, all of which are closed mesh openings. The edge of the second dummy electrode 113B may also include at least one metal trace 116B. These multiple metal traces 116B do not form closed mesh openings; they are typically located at the edge of the second dummy electrode 113B, achieving insulation between them and the touch electrode. Along the thickness direction Z of the display panel, the metal mesh 115B of the second dummy electrode 113B does not overlap with the first opening 107, the second opening 108, or the third opening 109. In other words, the vertical projection of the metal mesh 115B in the second dummy electrode 113B onto the pixel limiting layer 104 is located in the non-light-emitting area of ​​the pixel limiting layer 104, and the vertical projection of the metal mesh 115B in the second dummy electrode 113B onto the light-shielding layer 106 is located in the non-opening area of ​​the light-shielding layer 106. The metal mesh 115B in the second dummy electrode 113B surrounds at least one second opening 108 in the vertical projection of the light-shielding layer 106. Along the thickness direction Z of the display panel, the second opening 108 surrounds one or more light-emitting elements 105. Thus, the light emitted by the light-emitting element 105 can be emitted through the metal mesh 115B in the second dummy electrode 113B. The second dummy electrode 113B will not block the light emitted by the light-emitting element 105, which is beneficial to improving the display uniformity of the display panel.

[0067] refer to Figure 7 and Figure 8 As shown, the first dummy electrode 113A includes a metal mesh structure, which includes a plurality of metal mesh holes 115A, which are closed mesh holes. Along the thickness direction Z of the display panel, the metal mesh holes 115A in the first dummy electrode 113A do not overlap with the first opening 107, the second opening 108, or the third opening 109. The vertical projection of the metal mesh holes 115A in the first dummy electrode 113A onto the pixel limiting layer 104 is located in the non-light-emitting area of ​​the pixel limiting layer 104. The vertical projection of the metal mesh holes 115A in the first dummy electrode 113A onto the light-shielding layer 106 is located in the non-opening area of ​​the light-shielding layer 106. The first dummy electrode 113A located in the first region 102 has a metal mesh 115A that, when projected vertically onto the light-shielding layer 106, surrounds at least one third opening 109; or, when projected vertically onto the light-shielding layer 106, surrounds at least one second opening 108; or, when projected vertically onto the light-shielding layer 106, surrounds at least one third opening 109 and at least one second opening 108. In this configuration, the light emitted by the light-emitting element 105 can pass through the metal mesh 115A in the first dummy electrode 113A and will not block the light emitted by the light-emitting element 105, thus improving the display uniformity of the display panel.

[0068] As described above, the first dummy electrode 113A has a metal mesh structure, and the metal mesh openings 115A of the metal mesh structure do not overlap with the openings in the light-shielding layer 106. And / or, the second dummy electrode 113B also has a metal mesh structure, and the metal mesh openings 115B of the metal mesh structure do not overlap with the openings in the light-shielding layer 106. Therefore, the first dummy electrode 113A and the second dummy electrode 113B will not affect the normal display of the light-emitting element 105, nor will they block the third opening 109, ensuring the light transmittance of the first area 102, enabling the display panel to achieve normal display and under-display optical functions.

[0069] Continue to refer to Figure 7 As shown, the area of ​​the metal mesh 115A in the first dummy electrode 113A can be greater than or equal to the area of ​​the metal mesh 115B in the second dummy electrode 113B. For the first region 102, due to the provision of the third opening 109, the wiring space in the non-opening area of ​​the light-shielding layer 106 is limited. Therefore, designing a large area for the metal mesh 115A in the first dummy electrode 113A facilitates the placement of the dummy electrode 113 within the limited wiring space of the first region 102. For the display region 101A, since the third opening 109 is not provided, the distance between two adjacent second openings 108 is relatively large. Therefore, designing a small area for the metal mesh 115B in the second dummy electrode 113B facilitates increasing the area of ​​the dummy electrode 113, which is beneficial for improving display uniformity.

[0070] Figure 11 This is a schematic diagram of another touch structure provided in an embodiment of this disclosure. Figure 12 This is a schematic diagram of yet another touch structure provided in this embodiment. Figure 13 This is a schematic diagram of yet another touch structure provided in this embodiment. Figure 14 This is a schematic diagram of another touch structure provided in the embodiments of this disclosure, see reference. Figure 3 , Figures 11 to 14 As shown, the optional touch structure 110 includes: a plurality of first touch electrodes 111 extending along a first direction Y and arranged along a second direction X, and a plurality of second touch electrodes 112 extending along the second direction X and arranged along the first direction Y, wherein the first direction Y and the second direction X intersect; the first touch electrodes 111 include a plurality of first touch electrode blocks 111A arranged along the first direction Y and a plurality of first electrode connection portions 111B arranged along the first direction Y, wherein two adjacent first touch electrode blocks 111A along the first direction Y are electrically connected through the first electrode connection portions 111B; the second touch electrodes 112 include a plurality of second touch electrode blocks 112A arranged along the second direction X and a plurality of second electrode connection portions 112B arranged along the second direction X, wherein two adjacent second touch electrode blocks 112A along the second direction X are electrically connected through the second electrode connection portions 112B.

[0071] In this embodiment, the first touch electrode 111 includes a plurality of first touch electrode blocks 111A arranged along the Y direction. Adjacent first touch electrode blocks 111A arranged along the Y direction are electrically connected by a first electrode connection portion 111B. The first touch electrode blocks 111A and the first electrode connection portion 111B can be on the same layer or on different layers. The plurality of first touch electrodes 111 are arranged along the X direction. Here, the Y direction is defined as the first direction, and the X direction is defined as the second direction. The X and Y directions intersect, and both the X and Y directions are parallel to the plane of the substrate 103. In other words, the X direction is perpendicular to the Z direction, and the Y direction is perpendicular to the Z direction. Similarly, the second touch electrode 112 includes a plurality of second touch electrode blocks 112A arranged along the X direction. Adjacent second touch electrode blocks 112A arranged along the X direction are electrically connected by a second electrode connection portion 112B. The second touch electrode blocks 112A and the second electrode connection portion 112B can be on the same layer or on different layers. The plurality of second touch electrodes 112 are arranged along the Y direction.

[0072] The first touch electrode 111 and the second touch electrode 112 are insulated from each other. Based on this, the film layers of the first touch electrode block 111A, the first electrode connection part 111B, the second touch electrode block 112A and the second electrode connection part 112B are designed in a reasonable way to satisfy the insulation relationship between the first touch electrode 111 and the second touch electrode 112.

[0073] For example, Figure 15 yes Figure 11 Sectional view along A3-A4, Figure 16 yes Figure 11 A sectional view along A5-A6, as shown Figure 15 and Figure 16 As shown, the first touch electrode block 111A, the second touch electrode block 112A, and the second electrode connection portion 112B can be on the same layer, or the first touch electrode block 111A and the first electrode connection portion 111B can be on different layers. Then, two adjacent first touch electrode blocks 111A arranged along the Y direction are electrically connected through holes punched in the first electrode connection portion 111B of different layers, and two adjacent second touch electrode blocks 112A arranged along the X direction are electrically connected through the second electrode connection portion 112B of the same layer.

[0074] For example, Figure 17 yes Figure 11 Another sectional view along A3-A4, Figure 18 yes Figure 11 Another sectional view along A5-A6, as shown Figure 17 and Figure 18As shown, the first touch electrode block 111A and the second electrode connection part 112B can be on the same layer, and the second touch electrode block 112A and the first electrode connection part 111B can be on the same layer. Then, two adjacent first touch electrode blocks 111A arranged along the Y direction are electrically connected through holes punched in the first electrode connection part 111B of different layers, and two adjacent second touch electrode blocks 112A arranged along the X direction are electrically connected through holes punched in the second electrode connection part 112B of different layers.

[0075] The film layer relationships of the first touch electrode block 111A, the first electrode connection portion 111B, the second touch electrode block 112A, and the second electrode connection portion 112B in the touch structure 110 are not limited to this, and will not be elaborated here. It should be noted that... Figure 3 , Figures 11 to 14 The touch structure in the diagram is not used to explain the film layer relationship between the first touch electrode block 111A, the second touch electrode block 112A, the first electrode connection portion 111B, and the second electrode connection portion 112B, but only to illustrate the electrical connection relationship between the first touch electrode block 111A and the first electrode connection portion 111B, as well as the electrical connection relationship between the second touch electrode block 112A and the second electrode connection portion 112B.

[0076] The outline shape of either the first touch electrode block 111A or the second touch electrode block 112A can be rhomboid, triangular, or rectangular. Alternatively, the outline shape of either the first touch electrode block 111A or the second touch electrode block 112A can be irregular; the irregularly shaped touch electrode block includes a main body and a plurality of spaced-apart branches, the area of ​​the main body being larger than the area of ​​the branches, and the plurality of branches being distributed on at least one side of the main body.

[0077] The first touch electrode 111 includes a first touch electrode block 111A, and the second touch electrode 112 includes a second touch electrode block 112A. The outline shapes of the first touch electrode block 111A and the second touch electrode block 112A can be the same or different. For example, Figure 3 As shown, the outline shape of the first touch electrode block 111A is rhomboid, and the outline shape of the second touch electrode block 112A is rhomboid. The outline shapes of the first touch electrode block 111A and the second touch electrode block 112A are the same. Figure 11 As shown, the outline shape of the first touch electrode block 111A is I-shaped, and the outline shape of the second touch electrode block 112A is rectangular. The outline shapes of the first touch electrode block 111A and the second touch electrode block 112A are different. Figure 12 As shown, the outline shape of the first touch electrode block 111A is rectangular, the outline shape of the second touch electrode block 112A is rectangular, and the outline shapes of the first touch electrode block 111A and the second touch electrode block 112A are the same. Figure 13As shown, the outline shape of the first touch electrode block 111A is rectangular, the outline shape of the second touch electrode block 112A is rectangular, and the outline shapes of the first touch electrode block 111A and the second touch electrode block 112A are the same.

[0078] like Figure 14 As shown, the outline shape of the first touch electrode block 111A is irregular, and the outline shape of the second touch electrode block 112A is irregular. The outline shapes of the first touch electrode block 111A and the second touch electrode block 112A are different. Specifically, the outline shape of the first touch electrode block 111A is irregular; the irregular first touch electrode block 111A includes a main body portion 111A1 and a plurality of branch portions 111A2 spaced apart. The area of ​​the main body portion 111A1 is larger than the area of ​​the branch portions 111A2, and the plurality of branch portions 111A2 are distributed on at least one side of the main body portion 111A1. The second touch electrode block 112A has an irregular shape. The irregular second touch electrode block 112A includes a main body 112A1 and a plurality of branch portions 112A2 spaced apart. The area of ​​the main body 112A1 is larger than the area of ​​the branch portions 112A2. The plurality of branch portions 112A2 are distributed on at least one side of the main body 112A1.

[0079] In this embodiment of the disclosure, the outline shape of the first touch electrode block 111A and the outline shape of the second touch electrode block 112A can be specifically set according to actual needs, and are not limited to the above examples.

[0080] For the dummy electrode 113 in the touch structure 110, along the thickness direction Z of the display panel, the dummy electrode 113 is disposed in the non-touch electrode area, and the dummy electrode 113 is insulated from the touch electrode. Specifically, along the thickness direction Z of the display panel, the dummy electrode 113 may be formed inside the touch electrode, or the dummy electrode 113 may be formed between two adjacent touch electrodes, or multiple dummy electrodes 113 may be formed not only inside the touch electrode but also between two adjacent touch electrodes. For example, as shown... Figure 3 As shown, along the thickness direction Z of the display panel, at least one dummy electrode 113 is formed between the first touch electrode block 111A and the second touch electrode block 112A. Figure 11 As shown, along the thickness direction Z of the display panel, at least one dummy electrode 113 is formed inside the first touch electrode block 111A. Figure 12 As shown, along the thickness direction Z of the display panel, at least one dummy electrode 113 is formed between two first touch electrode blocks 111A, and at least one dummy electrode 113 is formed between the first touch electrode block 111A and the second touch electrode block 112A. Figure 13 As shown, along the thickness direction Z of the display panel, at least one dummy electrode 113 is formed between the first touch electrode block 111A and the second touch electrode block 112A, and at least one dummy electrode 113 is formed inside the first touch electrode block 111A. Figure 14 As shown, along the thickness direction Z of the display panel, at least one dummy electrode 113 is formed between the first touch electrode block 111A and the second touch electrode block 112A, and at least one dummy electrode 113 is formed inside the first touch electrode block 111A. In this embodiment, provided that the dummy electrode 113, the first touch electrode 111, and the second touch electrode 112 are insulated from each other, the overlapping relationship between the dummy electrode 113, the first touch electrode 111, and the second touch electrode 112 along the thickness direction Z of the display panel can be specifically configured according to actual needs, and is not limited to the above example.

[0081] For the dummy electrode 113 in the touch structure 110, there are various film layer relationships between the dummy electrode 113, the first touch electrode block 111A, the first electrode connection portion 111B, the second touch electrode block 112A, and the second electrode connection portion 112B. For example, any one of the first touch electrode block 111A, the first electrode connection portion 111B, the second touch electrode block 112A, and the second electrode connection portion 112B may be on a different layer than the dummy electrode 113; or, the first touch electrode block 111A may be on the same layer as the dummy electrode 113; or, the first electrode connection portion 111B may be on the same layer as the dummy electrode 113; or, the second touch electrode block 112A may be on the same layer as the dummy electrode 113; or, the second electrode connection portion 112B may be on the same layer as the dummy electrode 113. In this embodiment of the disclosure, provided that the dummy electrode 113, the first touch electrode 111, and the second touch electrode 112 are insulated from each other, the film layer relationship between the dummy electrode 113, the first touch electrode 111, and the second touch electrode 112 can be specifically configured according to actual needs, and is not limited to the above example.

[0082] refer to Figure 14The optional touch structure 110 includes a plurality of touch units 120 arranged along the first direction Y and the second direction X. The outline shape of each touch unit 120 is rectangular. Each touch unit 120 includes adjacent first touch electrode blocks 111A and second touch electrode blocks 112A. It should be noted that the touch unit 120 is not an actual integral part of the display panel, but a virtual division based on the layout of the touch structure 110. The touch structure 110 is virtually divided into a plurality of touch units 120 arranged in an array. Each touch unit 120 includes adjacent first touch electrode blocks 111A and second touch electrode blocks 112A. The outline shapes of the first touch electrode blocks 111A and the second touch electrode blocks 112A in different touch units 120 are similar.

[0083] Figure 19 yes Figure 1 Another schematic diagram of a local region AR1, Figure 19 The touch unit 120 shown is Figure 14 The touch unit 120 shown has the same structure. Figure 14 The touch unit 120 shown is used as an example for reference. Figure 14 and Figure 19 As shown, the optional touch unit 120 includes a first touch unit 120A and a second touch unit 120B; the area ratio of the sum of the areas of the first touch electrode block 111A and the second touch electrode block 112A in the first touch unit 120A is different from the area ratio of the sum of the areas of the first touch electrode block 111A and the second touch electrode block 112A in the second touch unit 120B; along the thickness direction Z of the display panel, the first area 102 overlaps with the first touch unit 120A, and the multiple second touch units 120B do not overlap with the first area 102.

[0084] In this embodiment, the touch structure 110 of the display panel is virtually divided into multiple touch units 120 arranged in an array. Along the thickness direction Z of the display panel, the touch unit 120 located in the first area 102 is defined as the first touch unit 120A, and the touch unit 120 located in the display area 101A is defined as the second touch unit 120B. It is understood that among the multiple touch units 120 arranged in the array, at least one touch unit 120 may overlap with both the first area 102 and the display area 101A. Such a touch unit 120 can be defined as either the second touch unit 120B or the first touch unit 120A.

[0085] Specifically, the area of ​​the first touch electrode block 111A refers to the area of ​​the outline shape of the first touch electrode block 111A. Correspondingly, the area of ​​the first touch electrode block 111A in the touch unit 120 refers to the total area of ​​the outline shape of the first touch electrode block 111A in the touch unit 120. Figure 3 For example, in display area 101, the outline shape of a first touch electrode block 111A is rhombus-shaped. Therefore, the area of ​​a first touch electrode block 111A refers to the area of ​​the rhombus shape corresponding to the first touch electrode block 111A. Similarly, in display area 101, the outline shape of a first touch electrode block 111A in a touch unit 120 is approximately two triangles with opposite vertices. Therefore, the area of ​​a first touch electrode block 111A in a touch unit 120 refers to the area of ​​the two triangle shapes corresponding to the first touch electrode block 111A in the touch unit 120. Likewise, the area of ​​a second touch electrode block 112A refers to the area of ​​its outline shape. Correspondingly, the area of ​​a second touch electrode block 112A in touch unit 120 refers to the total area of ​​the outline shapes of the second touch electrode blocks 112A in touch unit 120. Figure 3 As shown in the example, the area of ​​the second touch electrode block 112A in a touch unit 120 refers to the area of ​​the two triangular shapes corresponding to the second touch electrode block 112A in a touch unit 120.

[0086] Obviously, the area of ​​a touch unit 120 refers to the area of ​​the outline shape corresponding to the touch unit 120. Based on this, the area of ​​the first touch unit 120A, the area of ​​the first touch electrode block 111A in the first touch unit 120A, and the area of ​​the second touch electrode block 112A in the first touch unit 120A can be obtained, and thus the ratio of the sum of the areas of the first touch electrode block 111A and the second touch electrode block 112A in the first touch unit 120A can be determined. Similarly, the ratio of the sum of the areas of the first touch electrode block 111A and the second touch electrode block 112A in the second touch unit 120B can be determined.

[0087] As described above, the wiring space within the first region 102 is limited. To ensure the touch sensitivity of the touch structure 110, the line width, area, and layout of the touch electrodes within the first region 102 can be flexibly adjusted. Based on this, the ratio of the sum of the areas of the first touch electrode block 111A and the second touch electrode block 112A in the first touch unit 120A changes accordingly, differing from the ratio of the sum of the areas of the first touch electrode block 111A and the second touch electrode block 112A in the second touch unit 120B. In other words, the first touch unit 120A overlapping with the first region 102 and the second touch unit 120B in the regular area are designed differently. A dummy electrode 113 is placed in the first region 102. By reducing the line width of the dummy electrode 113, the light-shielding layer of the first region 102 can cover the wiring of the touch structure 110 without affecting the touch performance of the touch structure 110.

[0088] The optional touch unit 120 also includes a dummy electrode 113; in the first touch unit 120A, the area ratio of the dummy electrode 113 is SA11; in the second touch unit 120B, the area ratio of the dummy electrode 113 is SA12; SA11≥SA12.

[0089] Specifically, the area of ​​the dummy electrode 113 in the touch unit 120 refers to the total area of ​​the outline shape of the dummy electrode 113 in the touch unit 120. Figure 19 As shown in the example, the dummy electrodes 113 in the first touch unit 120A include four triangular dummy electrodes 113 located at the four vertices of the first touch unit 120A, and two triangular dummy electrodes 113 located on the two opposite sides of the first touch unit 120A. Therefore, the area of ​​the dummy electrodes 113 in the first touch unit 120A is the sum of the areas of the corresponding six triangles. Similarly, using... Figure 19 As shown in the example, the dummy electrodes 113 in the second touch unit 120B only include four triangular dummy electrodes 113 located at the four vertices of the second touch unit 120B. Therefore, the area of ​​the dummy electrodes 113 in the second touch unit 120B is the sum of the areas of the corresponding four triangles.

[0090] In this embodiment, the area ratio SA11 of the dummy electrode 113 in the first touch unit 120A is designed to be greater than or equal to the area ratio SA12 of the dummy electrode 113 in the second touch unit 120B. That is, within the limited wiring space of the first area 102, the area of ​​the dummy electrode 113 in the first touch unit 120A can be flexibly adjusted so that the area ratio of the dummy electrode 113 in the first touch unit 120A in the first area 102 is greater than or equal to the area ratio of the dummy electrode 113 in the second touch unit 120B in the display area 101A. In other words, the dummy electrodes 113 in the display area 101 are concentrated in the first area 102, which will not interfere with the display effect and under-screen optical function of the first area 102, nor will it affect the touch function of the touch structure 110. It can also reduce the difference in light transmittance and display brightness between the display area 101A and the first area 102, improving display uniformity and thus improving display quality.

[0091] Continue to refer to Figure 19 Optionally, in the first touch unit 120A, the sum of the areas of the first touch electrode 111 and the second touch electrode 112 is SA21; in the second touch unit 120B, the sum of the areas of the first touch electrode 111 and the second touch electrode 112 is SA22; SA21≤SA22.

[0092] In this embodiment, the area of ​​the first touch electrode 111 in the touch unit 120 includes at least the area of ​​the first touch electrode block 111A in the touch unit 120, and the area of ​​the first touch electrode 111 in the touch unit 120 may further include the area of ​​the first electrode connection portion 111B in the touch unit 120. Similarly, the area of ​​the second touch electrode 112 in the touch unit 120 includes at least the area of ​​the second touch electrode block 112A in the touch unit 120, and the area of ​​the second touch electrode 112 in the touch unit 120 may further include the area of ​​the second electrode connection portion 112B in the touch unit 120.

[0093] The area ratio SA21 of the first touch electrode 111 and the second touch electrode 112 in the first touch unit 120A is designed to be less than or equal to the area ratio SA22 of the first touch electrode 111 and the second touch electrode 112 in the second touch unit 120B. In other words, the area of ​​the first touch electrode 111 and the second touch electrode 112 can be flexibly adjusted within the limited wiring space of the first area 102. Specifically, the design reduces the area ratio of the touch electrodes in the first touch unit 120A, making the area ratio of the touch electrodes in the first touch unit 120A in the first area 102 less than or equal to the area ratio of the touch electrodes in the second touch unit 120B in the display area 101A. In other words, by reducing the area of ​​the touch electrode in the touch unit 120 in the first area 102, the overlap between the first touch electrode 111 or the second touch electrode 112 in the first area 102 and the third opening 109 can be avoided, thus preventing the touch electrode from being exposed. This will not interfere with the display effect and under-screen optical function of the first area 102, nor will it affect the touch function of the touch structure 110. It can also reduce the difference in light transmittance and display brightness between the display area 101A and the first area 102, thereby improving display uniformity and ultimately improving display quality. In other words, the first touch unit 120A overlapping with the first area 102 and the second touch unit 120B in the regular area (i.e., display area 101A) are designed differently. The dummy electrode 113 is placed in the first area 102. By reducing the line width of the dummy electrode 113, the light-shielding layer of the first area 102 can cover the traces of the touch structure 110. The area of ​​the touch electrode in the second touch unit 120B near the first area 102 is also appropriately increased to compensate for the influence of the dummy electrode 113 on the touch conductive area of ​​the first area 102, and to ensure the touch performance of the touch structure 110.

[0094] Figure 20 yes Figure 1 Another schematic diagram of a local AR1 region, see reference. Figure 20As shown, the optional first region 102 includes a first dummy electrode region 130A, which includes a dummy electrode 113; along the thickness direction Z of the display panel, the vertical projection of the first dummy electrode region 130A onto the light-shielding layer 106 overlaps with at least one touch unit 120.

[0095] Optionally, along the thickness direction Z of the display panel, the vertical projection of the first dummy electrode area 130A onto the light-shielding layer 106 is located inside the second touch electrode block 112A. In other embodiments, the vertical projection of the first dummy electrode area onto the light-shielding layer is located inside the first touch electrode block along the thickness direction of the display panel.

[0096] The outline shape of the first dummy electrode region 130A can be elliptical. In other embodiments, the outline shape of the first dummy electrode region 130A can be rhomboid, circular, or rectangular; it is not limited to these.

[0097] In this embodiment, the first dummy electrode area 130A is designed to overlap with two adjacent first touch units 120A along the X direction. Along the X direction, multiple second touch electrode blocks 112A are arranged and electrically connected to form a second touch electrode 112; along the Y direction, multiple first touch electrode blocks 111A are arranged and electrically connected through a first electrode connection portion 111B to form a first touch electrode 111. For two adjacent first touch units 120A along the X direction, adjacent second touch electrode blocks 112A in the two first touch units 120A form a single unit. Therefore, by reasonably adjusting the shape of the second touch electrode blocks 112A in the first touch unit 120A, a larger first dummy electrode area 130A can be formed between the two adjacent first touch units 120A, and a dummy electrode 113 is set in the first dummy electrode area 130A. Obviously, the vertical projection of the first dummy electrode area 130A onto the light-shielding layer 106 is located inside the second touch electrode block 112A. In this way, within the limited wiring space of the first zone 102, the coverage area of ​​the dummy electrode 113 in the first zone 102 can be increased, the difference in light transmittance and display brightness between the display area 101A and the first zone 102 can be reduced, the display uniformity can be improved, and thus the display quality can be improved.

[0098] refer to Figure 20 As shown, optionally along the thickness direction Z of the display panel, the vertical projection of the first dummy electrode area 130A on the light-shielding layer 106 overlaps with the two adjacent touch units 120 and the overlapping area is equal.

[0099] As described above, the first dummy electrode region 130A is designed to overlap with two adjacent first touch units 120A along the X direction. Further design ensures that the overlap area of ​​the first dummy electrode region 130A in the two adjacent first touch units 120A is equal. That is, the two adjacent first touch units 120A along the X direction share a common virtual edge, which divides the first dummy electrode region 130A into two equal parts, making the overlap area of ​​the first dummy electrode region 130A with the two adjacent touch units 120A equal. This design helps to increase the coverage area of ​​the dummy electrodes 113 in the first region 102 within the limited wiring space of the first region 102.

[0100] Figure 21 yes Figure 1 Another schematic diagram of a local AR1 region, see reference. Figure 21 As shown, the optional first region 102 includes a first dummy electrode region 130B, which includes a dummy electrode 113; along the thickness direction Z of the display panel, the vertical projection of the first dummy electrode region 130B onto the light-shielding layer 106 overlaps with at least one touch unit 120.

[0101] Optionally, along the thickness direction Z of the display panel, the vertical projection of the first dummy electrode area 130B onto the light-shielding layer 106 is surrounded by a plurality of adjacent first touch electrode blocks 111A. In other embodiments, optionally, along the thickness direction of the display panel, the vertical projection of the first dummy electrode area onto the light-shielding layer is surrounded by a plurality of adjacent second touch electrode blocks.

[0102] The outline shape of the first dummy electrode region 130B can be elliptical. In other embodiments, the outline shape of the first dummy electrode region 130B can be rhomboid, circular, or rectangular; it is not limited to these.

[0103] In this embodiment, the first dummy electrode area 130B is designed to overlap with 2×2 first touch units 120A. Along the X direction, multiple second touch electrode blocks 112A are arranged and electrically connected to form a second touch electrode 112; along the Y direction, multiple first touch electrode blocks 111A are arranged and electrically connected through a first electrode connection portion 111B to form a first touch electrode 111. For the arrayed 2×2 first touch units 120A, a large space is formed between adjacent first touch electrode blocks 111A in the four first touch units 120A. Therefore, by reasonably adjusting the shape of the first touch electrode blocks 111A in the first touch unit 120A, a larger first dummy electrode area 130B can be formed between adjacent 2×2 first touch units 120A, and a dummy electrode 113 is set in the first dummy electrode area 130B. Clearly, the vertical projection of the first dummy electrode area 130B onto the light-shielding layer 106 lies between 2×2 first touch units 120A. This increases the coverage area of ​​the dummy electrodes 113 within the limited wiring space of the first area 102, reducing the differences in light transmittance and brightness between the display area 101A and the first area 102, thus improving display uniformity and ultimately enhancing display quality.

[0104] refer to Figure 21 As shown, optionally along the thickness direction Z of the display panel, the vertical projection of the first dummy electrode area 130B on the light-shielding layer 106 overlaps with the adjacent 2×2 touch units 120 and the overlapping area is equal.

[0105] As described above, the first dummy electrode area 130B overlaps with 2×2 first touch units 120A. Further design ensures that the overlap area of ​​the first dummy electrode area 130A is equal among the four adjacent first touch units 120A. That is, the 2×2 first touch units 120A share a common virtual vertex, which can coincide with the center point of the first dummy electrode area 130B, making the overlap area of ​​the first dummy electrode area 130B with the 2×2 first touch units 120A equal. This design helps to increase the coverage area of ​​the dummy electrodes 113 in the first region 102 within the limited wiring space of the first region 102.

[0106] Based on the same concept, this disclosure also provides a display device, which includes any of the display panels provided in the above embodiments; however, it is not limited thereto. Figure 22 This is a schematic diagram of a display device provided in an embodiment of this disclosure, such as... Figure 22 As shown, the display device 300 includes a display panel 301. Therefore, the display device 300 also has the beneficial effects of the display panel 301 in the above embodiments. The similarities can be understood with reference to the explanation of the display panel 301 above, and will not be repeated below.

[0107] The display device 300 provided in this embodiment can be a display device 300 that can be Figure 22 The mobile phone shown can also be any electronic product with display function, including but not limited to the following categories: television, laptop, desktop monitor, tablet computer, digital camera, smart bracelet, smart glasses, vehicle display, industrial control equipment, medical display screen, touch interactive terminal, etc., and the embodiments disclosed herein do not impose any special limitations on this.

[0108] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this disclosure can be achieved, and this is not limited herein.

[0109] The specific embodiments described above do not constitute a limitation on the scope of protection of this disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A display panel, characterized in that, include: The display area and the first area located in the display area; The display area includes a substrate, a pixel defining layer, a plurality of light-emitting elements and a light-shielding layer arranged sequentially. The pixel defining layer has a plurality of first openings, and the light-emitting elements are located in the first openings. The light-shielding layer has a plurality of second openings. The light-shielding layer in the first area also has at least one third opening. Along the thickness direction of the display panel, the second openings overlap with the first openings, and the third openings do not overlap with the first openings. The display area includes a touch structure located between the light-emitting element and the light-shielding layer. The touch structure includes a dummy electrode and a first touch electrode and a second touch electrode whose extension directions intersect. The dummy electrode, the first touch electrode and the second touch electrode are insulated from each other. Along the thickness direction of the display panel, the first area overlaps with the dummy electrode.

2. The display panel according to claim 1, characterized in that, Along the thickness direction of the display panel, none of the dummy electrode, the first touch electrode, and the second touch electrode overlaps with the third opening.

3. The display panel according to claim 1, characterized in that, The dummy electrode includes a first dummy electrode and a second dummy electrode, wherein the linewidth of the first dummy electrode is less than or equal to the linewidth of the second dummy electrode. Along the thickness direction of the display panel, the first area overlaps with the first dummy electrode.

4. The display panel according to claim 3, characterized in that, At least one of the first dummy electrode and the second dummy electrode includes multiple metal traces.

5. The display panel according to claim 4, characterized in that, Along the thickness direction of the display panel, the metal trace does not overlap with the third opening.

6. The display panel according to claim 3, characterized in that, At least one of the first dummy electrode and the second dummy electrode includes a metal mesh structure, the metal mesh structure including a plurality of metal mesh holes.

7. The display panel according to claim 6, characterized in that, Along the thickness direction of the display panel, the vertical projection of the metal mesh on the light-shielding layer is located in the non-opening area of ​​the light-shielding layer.

8. The display panel according to claim 6, characterized in that, Along the thickness direction of the display panel, the vertical projection of the metal mesh on the light-shielding layer surrounds at least one of the third openings, and / or, the vertical projection of the metal mesh on the light-shielding layer surrounds at least one of the second openings.

9. The display panel according to claim 6, characterized in that, The area of ​​the metal mesh in the first dummy electrode is greater than or equal to the area of ​​the metal mesh in the second dummy electrode.

10. The display panel according to claim 3, characterized in that, The width of the non-opening portion between two adjacent openings of the light-shielding layer is greater than or equal to the linewidth of the first dummy electrode.

11. The display panel according to claim 3, characterized in that, Along the thickness direction of the display panel, the first area does not overlap with the second dummy electrode.

12. The display panel according to claim 1, characterized in that, The touch structure includes: a plurality of first touch electrodes extending along a first direction and arranged along a second direction, and a plurality of second touch electrodes extending along the second direction and arranged along the first direction, wherein the first direction and the second direction intersect. The first touch electrode includes a plurality of first touch electrode blocks arranged along the first direction and a plurality of first electrode connection portions arranged along the first direction, wherein two adjacent first touch electrode blocks along the first direction are electrically connected through the first electrode connection portions. The second touch electrode includes a plurality of second touch electrode blocks arranged along the second direction and a plurality of second electrode connection portions arranged along the second direction, wherein two adjacent second touch electrode blocks are electrically connected through the second electrode connection portions along the second direction.

13. The display panel according to claim 12, characterized in that, The touch structure includes a plurality of touch units arranged along the first direction and the second direction, and the outline shape of the touch units is rectangular; The touch unit includes an adjacent first touch electrode block and a second touch electrode block.

14. The display panel according to claim 13, characterized in that, The touch unit includes a first touch unit and a second touch unit; The sum of the areas of the first touch electrode block and the second touch electrode block in the first touch unit is different from the sum of the areas of the first touch electrode block and the second touch electrode block in the second touch unit; Along the thickness direction of the display panel, the first area overlaps with the first touch unit, while the plurality of second touch units do not overlap with the first area.

15. The display panel according to claim 14, characterized in that, The touch unit also includes the dummy electrode; In the first touch unit, the area ratio of the dummy electrode is SA11; In the second touch unit, the area ratio of the dummy electrode is SA12; SA11≥SA12.

16. The display panel according to claim 14, characterized in that, In the first touch unit, the sum of the areas of the first touch electrode and the second touch electrode accounts for SA21. In the second touch unit, the sum of the areas of the first touch electrode and the second touch electrode accounts for SA22. SA21≤SA22.

17. The display panel according to claim 12, characterized in that, The outline shape of either the first touch electrode block or the second touch electrode block is rhomboid, triangular or rectangular.

18. The display panel according to claim 12, characterized in that, The outline shape of either the first touch electrode block or the second touch electrode block is irregular; The irregularly shaped touch electrode block includes a main body and a plurality of branch portions spaced apart. The area of ​​the main body is larger than the area of ​​the branch portions, and the plurality of branch portions are distributed on at least one side of the main body.

19. The display panel according to claim 13, characterized in that, The first region includes a first dummy electrode region, and the first dummy electrode region includes the dummy electrode; Along the thickness direction of the display panel, the vertical projection of the first dummy electrode area onto the light-shielding layer overlaps with at least one of the touch units.

20. The display panel according to claim 19, characterized in that, Along the thickness direction of the display panel, the vertical projection of the first dummy electrode area on the light-shielding layer is located inside the first touch electrode block; Alternatively, along the thickness direction of the display panel, the vertical projection of the first dummy electrode area onto the light-shielding layer is located inside the second touch electrode block.

21. The display panel according to claim 19, characterized in that, Along the thickness direction of the display panel, the vertical projection of the first dummy electrode area on the light-shielding layer is surrounded by a plurality of adjacent first touch electrode blocks; Alternatively, along the thickness direction of the display panel, the vertical projection of the first dummy electrode area onto the light-shielding layer is surrounded by a plurality of adjacent second touch electrode blocks.

22. The display panel according to claim 19, characterized in that, Along the thickness direction of the display panel, the vertical projection of the first dummy electrode area onto the light-shielding layer overlaps with the two adjacent touch units, and the overlapping area is equal.

23. The display panel according to claim 19, characterized in that, Along the thickness direction of the display panel, the vertical projection of the first dummy electrode area onto the light-shielding layer overlaps with the adjacent 2×2 touch units, and the overlapping area is equal.

24. The display panel according to claim 19, characterized in that, The outline shape of the first dummy electrode region is rhomboid, circular, or rectangular.

25. The display panel according to claim 1, characterized in that, The first region further includes: a first optical device, which is located on the side of the substrate away from the light-shielding layer.

26. The display panel according to claim 25, characterized in that, Along the thickness direction of the display panel, the first optical element overlaps with at least one of the third openings.

27. A display device, characterized in that, include: The display panel according to any one of claims 1-26.

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