Display panel and display device
By introducing nested support groups and detection lines into the display panel, the problem of encapsulation failure caused by microparticles in the OLED display panel is solved, achieving efficient reliability testing and reducing the incidence of GDS defects.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- BOE TECHNOLOGY GROUP CO LTD
- Filing Date
- 2024-12-17
- Publication Date
- 2026-06-25
AI Technical Summary
In the existing technology, OLED display panels are prone to moisture oxidation defects (GDS defects) caused by cracks, scratches and other defects during the manufacturing process. Existing testing equipment is unable to completely detect the encapsulation failure problem caused by high-risk particles.
Nested support groups and detection lines are introduced into the display panel. The detection lines are electrically connected to the driver chip. Changes in the electrical parameters of the detection lines reflect the state of the support group, and determine whether there are high-risk particles causing encapsulation failure.
It effectively identifies and prevents encapsulation failures caused by high-risk particles, improves the reliability testing capability of display panels, and reduces the occurrence of GDS defects.
Smart Images
Figure CN2024139852_25062026_PF_FP_ABST
Abstract
Description
Display panel and display device Technical Field
[0001] This disclosure belongs to the field of display technology, specifically relating to a display panel and a display device. Background Technology
[0002] In the manufacturing process of display products, reliability testing is typically required to ensure that products meet quality standards before leaving the factory. Among these tests, growth dark spot (GDS) defects are a significant factor affecting product yield. Organic light-emitting diode (OLED) display panels can exhibit moisture oxidation defects caused by cracks, scratches, or top damage under specific conditions; these defects are known as GDS. These defects are characterized by their growth potential; once formed, the black spots gradually increase in size until the entire display surface fails. Summary of the Invention
[0003] This disclosure aims to at least solve one of the technical problems existing in the prior art, and to provide a display panel and a display device.
[0004] In a first aspect, the technical solution adopted to solve the technical problem of this disclosure is a display panel, which includes a substrate, a pixel defining layer disposed on the substrate, a support layer disposed on the side of the pixel defining layer opposite to the substrate, and an encapsulation layer disposed on the side of the support layer opposite to the pixel defining layer.
[0005] The support layer includes multiple nested support groups, and each support group includes multiple support parts distributed in a ring shape.
[0006] The display panel further includes at least one detection line disposed on the side of the encapsulation layer opposite to the support layer; the orthographic projection of the detection line on the substrate covers at least a portion of the orthographic projection of the support portion in at least one group of support portions on the substrate; the two ends of the detection line are electrically connected to a driving chip.
[0007] In some embodiments, the support group comprises N groups, and the first to Nth groups of the support group are nested sequentially in the direction from the edge of the display panel to the center; N is a positive integer greater than or equal to 2; the detection line includes a first detection line;
[0008] The orthographic projection of the first detection line on the substrate covers the orthographic projections of at least a portion of the supports in the i-th group of supports on the substrate, and the orthographic projections of at least a portion of the supports in the (i+1)-th group of supports on the substrate; i is an integer from 1 to N-1, including endpoint values.
[0009] In some embodiments, the detection line further includes a second detection line;
[0010] The orthogonal projection of the second detection line on the substrate covers the orthogonal projections of at least a portion of the supports in the (i+2)th support group and at least a portion of the supports in the (i+3)th support group on the substrate.
[0011] In some embodiments, i can be any one of 1, 2, and 3.
[0012] In some embodiments, the support assembly has a first support region and a second support region disposed opposite to each other along a first direction, and a third support region and a fourth support region disposed opposite to each other along a second direction; the third support region is further away from the driver chip than the fourth support region; the first direction and the second direction are intersecting.
[0013] The orthographic projection of the support portion onto the substrate is a virtual dot pattern, and the orthographic projection of the first detection line onto the substrate is a first virtual line pattern.
[0014] The first virtual line pattern is connected in series with all the virtual point patterns located within the target support area in the i-th group of support parts and the (i+1)-th group of support parts; the target support area includes at least the first support area, the second support area and the third support area.
[0015] In some embodiments, the first virtual line pattern includes multiple first sub-line segments connected in series; at least one end of a portion of the first sub-line segment is connected to a first virtual point pattern in the i-th group of support portions, and the other end is connected to a second virtual point pattern in the (i+1)-th group of support portions, wherein the second virtual point pattern is the virtual point pattern closest to the first virtual pattern among the multiple virtual point patterns in the (i+1)-th group of support portions.
[0016] In some embodiments, the support assembly has a first support region and a second support region disposed opposite to each other along a first direction, and a third support region and a fourth support region disposed opposite to each other along a second direction; the third support region is further away from the driver chip than the fourth support region; the first direction and the second direction are intersecting.
[0017] The orthographic projection of the support portion onto the substrate is a virtual dot pattern, and the orthographic projection of the second detection line onto the substrate is a second virtual line pattern;
[0018] The second virtual line pattern is connected in series with all the virtual point patterns located within the target support area in the (i+2)th and (i+3)th support groups; the target support area includes at least the first support area, the second support area, and the third support area.
[0019] In some embodiments, the second virtual line pattern includes multiple second sub-line segments connected in series; at least one end of a portion of the second sub-line segments is connected to a third virtual point pattern in the i+2th support group, and the other end is connected to a fourth virtual point pattern in the i+3rd support group, wherein the third virtual point pattern is the virtual point pattern closest to the third virtual pattern among the multiple virtual point patterns in the i+3rd support group.
[0020] In some embodiments, the support group comprises N groups, and the first to Nth groups of the support group are nested sequentially in the direction from the edge of the display panel to the center; N is a positive integer greater than or equal to 2; the detection line includes a third detection line;
[0021] The orthographic projection of the third detection line on the substrate covers at least a portion of the orthographic projection of the support portion on the substrate within three consecutive support portion groups from group 1 to group j; j is an integer from 3 to N, including endpoint values; N is a positive integer greater than or equal to 4.
[0022] In some embodiments, the support assembly has a first support region and a second support region disposed opposite to each other along a first direction, and a third support region and a fourth support region disposed opposite to each other along a second direction; the third support region is further away from the driver chip than the fourth support region; the first direction and the second direction are intersecting.
[0023] The orthographic projection of the support portion onto the substrate is a virtual dot pattern, and the orthographic projection of the third detection line onto the substrate is a third virtual line pattern;
[0024] The third virtual line pattern is connected in series with all the virtual point patterns located within the target support area in three consecutive support groups from group 1 to group j; the target support area includes the first support area, the second support area and the third support area.
[0025] In some embodiments, the support group comprises N groups, and the first to Nth groups of the support group are nested sequentially in the direction from the edge of the display panel to the center; N is a positive integer greater than or equal to 2; the detection line comprises a first detection line and a third detection line;
[0026] The orthogonal projection of the first detection line onto the substrate covers the orthogonal projections of at least a portion of the support portions in the i-th and i+1-th support portions onto the substrate; i is an integer from 1 to N-1, including endpoint values;
[0027] The orthogonal projection of the third detection line on the substrate covers the orthogonal projection of at least a portion of the support portions in the i+2 to i+4 groups on the substrate.
[0028] In some embodiments, i = 1.
[0029] In some embodiments, the support group comprises N groups, and the first to Nth groups of the support group are nested sequentially in the direction from the edge of the display panel to the center; N is a positive integer greater than or equal to 2; the detection line includes a fourth detection line;
[0030] The orthographic projection of the fourth detection line on the substrate covers at least a portion of the orthographic projection of the support portion on the substrate within four consecutive support portion groups from group 1 to group k; k is an integer from 4 to N, including endpoint values; N is a positive integer greater than or equal to 5.
[0031] In some embodiments, the support assembly has a first support region and a second support region disposed opposite to each other along a first direction, and a third support region and a fourth support region disposed opposite to each other along a second direction; the third support region is further away from the driver chip than the fourth support region; the first direction and the second direction are intersecting.
[0032] The orthographic projection of the support portion on the substrate is a virtual dot pattern, and the orthographic projection of the fourth detection line on the substrate is a fourth virtual line pattern.
[0033] The fourth virtual line pattern is connected in series with all the virtual point patterns located within the target support area in three consecutive support groups from group 1 to group k; the target support area includes the first support area, the second support area and the third support area.
[0034] In some embodiments, the display panel further includes a touch function layer disposed on the side of the encapsulation layer away from the support layer;
[0035] The touch functional layer includes a first touch layer, a touch insulating layer, and a second touch layer, which are sequentially disposed along a direction away from the substrate.
[0036] The first touch layer includes a bridging structure for connecting the touch electrodes; the second touch layer includes a first touch electrode and a second touch electrode; the first touch electrode includes a plurality of electrode blocks, and adjacent electrode blocks are electrically connected through the bridging structure.
[0037] The detection line is located in the first touch layer.
[0038] In some embodiments, the detection line does not overlap with the orthographic projection of the bridging structure onto the substrate.
[0039] Secondly, embodiments of this disclosure also provide a display device, which includes a display panel as described in any one of the first aspects. Attached Figure Description
[0040] Figure 1 is a schematic diagram of an existing PT structure;
[0041] Figure 2 is a schematic diagram of the film layers of the display panel provided in an embodiment of this disclosure;
[0042] Figure 3 is a plan view of the support layer provided in an embodiment of this disclosure;
[0043] Figure 4 is a schematic diagram of the positional relationship between the support portion and the sub-pixel provided in an embodiment of this disclosure;
[0044] Figure 5 is a schematic diagram of the projection relationship between the detection line and the support portion in Example 1 provided in the embodiments of this disclosure;
[0045] Figure 6 is a schematic diagram of the projection relationship between the detection line and the support portion in Example 2 provided in the embodiments of this disclosure;
[0046] Figure 7 is a schematic diagram of the projection relationship between the detection line and the support portion in Example 3 provided in the embodiments of this disclosure;
[0047] Figure 8 is a schematic diagram of the projection relationship between the detection line and the support portion in Example 4 provided in the embodiments of this disclosure;
[0048] Figure 9 is a schematic diagram of the projection relationship between the detection line and the support portion in Example 5 provided in the embodiments of this disclosure;
[0049] Figure 10 is a schematic diagram of the projection relationship between the detection line and the support portion in Example 6 provided in the embodiments of this disclosure. Detailed Implementation
[0050] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. The components of the embodiments of this disclosure described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this disclosure provided in the accompanying drawings is not intended to limit the scope of the claimed disclosure, but merely represents selected embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.
[0051] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, “a,” “one,” or “the” is used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion meaning that other elements / components / etc. may exist in addition to those listed. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. “Up,” “down,” “left,” “right,” etc., are used only to indicate relative positional relationships, which may change accordingly when the absolute position of the described objects changes. “Multiple or several” refers to two or more. “And / or” describes the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the objects before and after it are in an "or" relationship.
[0052] In this disclosure, unless otherwise stated, the term "same-layer arrangement" means that two layers, components, elements, or portions can be formed by the same patterning process, and that the two layers, components, elements, or portions are generally formed of the same material.
[0053] In this disclosure, unless otherwise stated, the term "patterning process" generally includes steps such as photoresist coating, exposure, development, etching, and photoresist stripping. The term "one-step patterning process" refers to a process that uses a photomask to form patterned layers, components, or parts.
[0054] In this disclosure, the first direction X, the second direction Y, and the third direction Z intersect each other. In this disclosure, the first direction X and the second direction Y are perpendicular to each other in the plane of the base, the first direction X is horizontal, the second direction Y is vertical, and the third direction Z is vertical and perpendicular to the plane of the base. However, this does not constitute a limitation on this disclosure.
[0055] In related technologies, there are many causes of GDS defects, among which encapsulation failure is one of the more important ones. For example, large particles (PTs) within the panel are highly likely to interrupt, scratch, or damage the encapsulation layer, leading to encapsulation failure. This allows moisture to enter, causing corrosion of the light-emitting layer and ultimately resulting in display device failure. Based on physical analysis, large PTs always occur on the support layer (e.g., the PS film layer). The reason for this is as follows: As shown in Figure 1, a support portion (PS) is provided on the substrate. During the vapor deposition (EV) process of the light-emitting layer, the mask is attached to the substrate. The support portion (PS), which is at a physical high point, is easily scratched during mask loading / unloading. However, the scratched portion of the support portion (PS) that does not completely fall off is carried up, forming a large PT. Large PTs affect the encapsulation deposition (CVD) and photoresist deposition (PR) processes on top of them, ultimately leading to damage to the encapsulation layer by the etching process, causing GDS defects. However, PT occurs randomly, and the detection capabilities of factory testing equipment are limited. Detection through optical means cannot completely detect all PTs of this type, or in other words, it cannot completely detect high-risk PTs that cause GDS.
[0056] In view of this, the present disclosure provides a display panel that substantially eliminates one or more of the problems caused by the limitations and defects of related technologies. Figure 2 is a schematic diagram of the film layer of the display panel provided in the present disclosure, and Figure 3 is a planar schematic diagram of the support layer provided in the present disclosure.
[0057] As shown in Figure 2, the display panel includes a substrate 1, a pixel defining layer 2 disposed on the substrate 1, a support layer 3 disposed on the side of the pixel defining layer 2 facing away from the substrate 1, and an encapsulation layer 4 disposed on the side of the support layer 3 facing away from the pixel defining layer 2. The pixel defining layer 2 includes a pixel opening 21 for defining a light-emitting device 5 and a barrier structure 22 forming the pixel opening 21. The encapsulation layer 4 is used to encapsulate the light-emitting device 5.
[0058] Optionally, the encapsulation layer 4 can be a single-layer structure or a multi-layer structure. When the encapsulation layer 4 is a multi-layer structure, as shown in Figure 2, the encapsulation layer 4 may include a first inorganic encapsulation layer 41, an organic encapsulation layer 43, and a second inorganic encapsulation layer 42 arranged sequentially, such as silicon nitride (SiN) + ink + silicon nitride (SiN).
[0059] As shown in Figure 3, the support layer 3 includes multiple nested support groups 30, each group of support groups 30 including multiple support parts PS arranged in a ring. The orthographic projection of the support part PS on the substrate 1 falls within the orthographic projection of the baffle structure 22 on the substrate 1. Here, the support part PS can support the protective film layer (not shown in the figure) to prevent the protective film layer from contacting the first electrode 51 or other traces of the light-emitting device 5, which could easily damage the first electrode 51 or other traces. It should be noted that this protective film layer mainly appears during the transfer of semi-finished products to prevent damage to the semi-finished products during the transfer process. Specifically, when transferring the semi-finished substrate with the support part PS made to the vapor deposition (EV) production line, a protective film layer can be applied. When the light-emitting material (light-emitting layer 53) needs to be vapor deposited, the protective film layer is removed. For example, the material of the support portion PS can be the same as the material of the pixel defining layer 2, and the support portion PS and the pixel defining layer 2 can be formed using the same patterning process. However, this is not a limitation; the material of the support portion PS can also be different from the material of the pixel defining layer 2, and the support portion PS and the pixel defining layer 2 can also be formed using different patterning processes. Optionally, the material of the support portion PS is an organic material.
[0060] Optionally, as shown in Figure 3, the multiple support parts PS in the support part group 30 are distributed in a rectangular ring. The support parts PS in adjacent support part groups 30 are staggered in the same direction. For example, in the first direction X, the support parts PS in adjacent support part groups 30 are staggered; in the second direction Y, the support parts PS in adjacent support part groups 30 are staggered.
[0061] Optionally, as shown in FIG4, the distance between the two nearest support portions PS in adjacent support portion groups 30 is greater than the maximum size of a single sub-pixel. For example, the distance between the two nearest support portions PS in adjacent support portion groups 30 is approximately equal to the length of two pixel units Px. Pixel unit Px includes multiple light-emitting devices 5 of different colors, such as red light-emitting device R, green light-emitting device G, and blue light-emitting device B. For another example, the pixel unit Px may include two red light-emitting devices R, one green light-emitting device G5, and one blue light-emitting device B. Of course, the arrangement of light-emitting devices 5 in pixel unit Px can also be adjusted based on actual conditions, and the embodiments disclosed herein are not limited thereto.
[0062] As shown in Figures 2, 4, and 5, the display panel also includes at least one detection line 6 disposed on the side of the encapsulation layer 4 opposite to the support layer 3. The orthographic projection of the detection line 6 on the substrate 1 covers the orthographic projection of at least a portion of the support portion PS in at least one set of support portion groups 30 on the substrate 1. The two ends of the detection line 6 are electrically connected to the driver chip 7. Thus, by detecting the electrical parameters of the detection line 6 connected to the driver chip 7, such as current, resistance, or voltage, it can be determined whether the detection line 6 is open-circuited. If it is open-circuited, it means that the detection line 6 is open-circuited due to the influence of the support portion PS below it. For example, the support portion PS forms a high-sized PT that lifts the detection line 6, which in turn causes the detection line 6 to be damaged by the etching process and thus open-circuited. Furthermore, since the detection line 6 is lifted by the higher-sized PT, causing an open circuit, the encapsulation layer 4 below the detection line 6 (mainly the second inorganic encapsulation layer 42) will inevitably suffer the same fate. For example, the second inorganic encapsulation layer 42 may also be damaged by the etching process, exposing the organic encapsulation layer 43, leading to the encapsulation failure of the second inorganic encapsulation layer 42 over the organic encapsulation layer 43. This allows moisture and oxygen to enter the display area through the organic encapsulation layer 43, resulting in a GDS defect. Additionally, if the detection line 6 is determined not to be open-circuited, it indicates that the support portion PS under the projection of the detection line 6 has not formed a PT or has only formed a low-risk PT. A low-risk PT is insufficient to cause encapsulation failure.
[0063] For example, the two ends of the detection line 6 are electrically connected to the driver chip 7 and led out through two detection leads 60. Here, the driver chip 6 can be a driver IC of the display panel or a flexible printed circuit board (FPC). An external testing device can be connected to the two detection leads 60 to measure the resistance on the detection line 6. If the resistance is greater than a preset value, the detection line 6 is determined to be open-circuited; if the resistance is less than or equal to the preset value, the detection line 6 is determined to be not open-circuited. The preset value can be a relatively large resistance value set empirically, or it can be directly set to an infinite value. As another example, the current on the detection line 6 can be measured. If the current is less than or equal to a preset value, the detection line 6 is determined to be open-circuited; if the current is greater than the preset value, the detection line 6 is determined to be not open-circuited. The preset value can be a relatively small current value set empirically, for example, approximately 0.
[0064] In some embodiments, as shown in FIG3, the support group 30 includes N groups, and the first to Nth groups of support group 30 are nested sequentially in the direction from the edge of the display panel to the center; N is a positive integer greater than or equal to 2. Each group of support group 30 is selected with a dashed line in FIG3. All N groups of support group 30 are located in the display area of the display panel, and the i-th group of support group 30 is closer to the edge of the display panel than the (i+1)-th group of support group 30.
[0065] As shown in Figure 4 or Figure 5, the orthogonal projection of a detection line 6 on the substrate 1 covers the orthogonal projection of at least a portion of the support portion PS in any two adjacent support portion groups 30 on the substrate 1.
[0066] In one possible implementation, as shown in FIG5, the detection line 6 includes a first detection line 61; the orthographic projection of the first detection line 61 on the substrate 1 covers the orthographic projections of at least a portion of the support portions PS in the i-th support group 30 on the substrate 1, and the orthographic projections of at least a portion of the support portions PS in the (i+1)-th support group 30 on the substrate 1; i is an integer from 1 to N-1, including endpoint values. Optionally, N is less than or equal to 10.
[0067] Reliability testing revealed that the types of reliability-related GDS ultimately caused by the aforementioned PT (Probe Point) are basically fixed. Only PTs with larger dimensions will cause GDS, and these more severe PTs typically occur on the 1st to 4th rows of support parts PSPS near the perimeter of the display panel, i.e., on the 1st to 4th support part groups 30. Based on this, i can be set to any of 1, 2, and 3. For example, i = 1; the orthogonal projection of the first detection line 61 on the substrate 1 covers the orthogonal projections of at least some of the support parts PS in the 1st support part group 30 and at least some of the support parts PS in the 2nd support part group 30 on the substrate 1. For example, i = 2; the orthogonal projection of the first detection line 61 on the substrate 1 covers the orthogonal projections of at least some of the support parts PS in the 2nd support part group 30 and at least some of the support parts PS in the 3rd support part group 30 on the substrate 1. For example, i = 3; the orthogonal projection of the first detection line 61 on the substrate 1 covers the orthogonal projection of at least a portion of the support portion PS in the third support portion group 30 on the substrate 1 and the orthogonal projection of at least a portion of the support portion PS in the fourth support portion group 30 on the substrate 1.
[0068] Continuing as shown in Figure 5, the support assembly 30 has a first support region 30a and a second support region 30b arranged opposite each other along a first direction X, and a third support region 30c and a fourth support region 30d arranged opposite each other along a second direction Y; the third support region 30c is further away from the driver chip 7 than the fourth support region 30d; the first direction X and the second direction Y are intersecting. For example, the first direction X and the second direction Y are perpendicular to each other. The driver chip 7 is located in the chip area of the display panel (not shown in the figure). Before the driver chip 7 is bent to the backlight surface, the chip area is located on the side of the fourth support region 30d away from the third support region 30c. The first detection line 61 is located in the display area of the display panel and surrounds the central area of the display panel around its perimeter. Finally, both ends of the first detection line 61 extend from the fourth support region 30d to the chip area and are electrically connected to the driver chip 7.
[0069] In one possible implementation, as shown in FIG5, the orthogonal projection of the first detection line 61 on the substrate 1 covers the orthogonal projections of the support portion PS located in the target support region in the i-th support group 30 and the (i+1)-th support group 30 on the substrate 1. The target support region includes at least a first support region 30a, a second support region 30b, and a third support region 30c. Optionally, the target support region includes the first support region 30a, the second support region 30b, and the third support region 30c; or, the target support region includes the first support region 30a, the second support region 30b, the third support region 30c, and a portion of the fourth support region 30d. The fourth support area 30d includes a first sub-support area 30d1, a second sub-support area 30d2, and a third sub-support area 30d3 located between the first sub-support area 30d1 and the second sub-support area 30d2. The third sub-support area 30d3 is aligned with the fan-out routing area in the second direction Y. The first sub-support area 30d1 and the second sub-support area 30d2 are located on both sides of the third sub-support area 30d3 in the first direction X, respectively. The first sub-support area 30d1 is connected to the first support area 30a, and the second sub-support area 30d2 is connected to the second support area 30b. Optionally, the target support area includes the first support area 30a, the second support area 30b, the third support area 30c, the first sub-support area 30d1, and the second sub-support area 30d2. It should be noted that, since the fourth support region 30d is closer to the chip region than the other support regions, and due to design reasons, the chip region is longer in the second direction Y, and the edge of the mask is farther from the fourth support region 30d, the support part PS located in the fourth support region 30d is less likely to form a high-risk PT.
[0070] Specifically, as shown in Figure 5, the orthographic projection of the support portion PS on the substrate 1 is a virtual dot pattern, and the orthographic projection of the first detection line 61 on the substrate 1 is a first virtual line pattern. The first virtual line pattern is connected in series with all the virtual dot patterns located in the target support area in the i-th support portion group 30 and the (i+1)-th support portion group 30.
[0071] Optionally, to reduce wiring, the first virtual line pattern alternately connects the virtual point patterns in the i-th support group 30 and the (i+1)-th support group 30 along the circumferential direction of each support PS in the support group 30. Specifically, as shown in FIG5, the first virtual line pattern includes multiple connected first sub-segments 611; wherein at least one end of a portion of the first sub-segments 611 is connected to a first virtual point pattern in the i-th support group 30, and the other end is connected to a second virtual point pattern in the (i+1)-th support group 30, and the second virtual point pattern is the virtual point pattern closest to the first virtual pattern among the multiple virtual point patterns in the (i+1)-th support group 30, to ensure that the virtual point patterns in the i-th support group 30 and the (i+1)-th support group 30 are connected using the shortest wiring.
[0072] Optionally, to reduce wiring, as shown in Figure 6, the first virtual line pattern includes multiple series-connected first sub-segments 611. The series-connected first sub-segments 611 include three types of sub-segments: the two ends of the first type sub-segment 611a are respectively connected to two adjacent first virtual point patterns in the i-th support group 30; the two ends of the second type sub-segment 611b are respectively connected to two adjacent second virtual point patterns in the (i+1)-th support group 30; and the two ends of the third type sub-segment 611c are respectively connected to the first type sub-segment 611a and the second type sub-segment 611b. That is, the third type sub-segment 611c is used to connect the first type sub-segment 611a and the second type sub-segment 611b in series.
[0073] In one possible implementation, as shown in FIG7, the detection line 6 further includes a second detection line 62. That is, in this embodiment, compared with the structure shown in FIG5 or FIG6 above, a second detection line 62 is added. Specifically, the orthographic projection of the second detection line 62 on the substrate 1 covers the orthographic projections of at least a portion of the support portions PS in the (i+2)th support group 30 and the orthographic projections of at least a portion of the support portions PS in the (i+3)th support group 30 on the substrate 1; i takes an integer from 1 to N-1, including endpoint values.
[0074] Optionally, i = 1; the orthogonal projection of the first detection line 61 on the substrate 1 covers the orthogonal projections of at least a portion of the support portions PS in the first group of support portions 30 and the second group of support portions PS on the substrate 1; the orthogonal projection of the second detection line 62 on the substrate 1 covers the orthogonal projections of at least a portion of the support portions PS in the third group of support portions 30 and the fourth group of support portions PS on the substrate 1. Optionally, i = 2; the orthogonal projection of the first detection line 61 on the substrate 1 covers the orthogonal projections of at least a portion of the support portions PS in the second group of support portions 30 and the third group of support portions PS on the substrate 1; the orthogonal projection of the second detection line 62 on the substrate 1 covers the orthogonal projections of at least a portion of the support portions PS in the fourth group of support portions 30 and the fifth group of support portions PS on the substrate 1. Optionally, i = 3; the orthographic projection of the first detection line 61 on the substrate 1 covers the orthographic projections of at least a portion of the support portion PS in the third support portion group 30 and the orthographic projections of at least a portion of the support portion PS in the fourth support portion group 30 on the substrate 1; the orthographic projection of the second detection line 62 on the substrate 1 covers the orthographic projections of at least a portion of the support portion PS in the fifth support portion group 30 and the orthographic projections of at least a portion of the support portion PS in the sixth support portion group 30 on the substrate 1.
[0075] In one possible implementation, as shown in FIG7, the orthogonal projection of the second detection line 62 on the substrate 1 covers the orthogonal projections of the support portion PS located in the target support region in the (i+2)th and (i+3)th support portion groups 30 on the substrate 1. The target support region includes at least a first support region 30a, a second support region 30b, and a third support region 30c. Optionally, the target support region includes a first support region 30a, a second support region 30b, and a third support region 30c. Optionally, the target support region includes a first support region 30a, a second support region 30b, a third support region 30c, a first sub-support region 30d1, and a second sub-support region 30d2.
[0076] Specifically, as shown in Figure 7, the orthographic projection of the support portion PS on the substrate 1 is a virtual dot pattern, and the orthographic projection of the second detection line 62 on the substrate 1 is a second virtual line pattern; the second virtual line pattern is connected in series with all the virtual dot patterns located in the target support area in the i+2 group of support portions 30 and the i+3 group of support portions 30.
[0077] Optionally, to reduce wiring, the second virtual line pattern alternately connects the virtual point patterns in the (i+2)th and (i+3)th support groups 30 along the circumferential direction of each support PS in the support group 30. Specifically, as shown in FIG7, the second virtual line pattern includes multiple connected second sub-segments 621; at least one end of a portion of the second sub-segments 621 is connected to a third virtual point pattern in the (i+2)th support group 30, and the other end is connected to a fourth virtual point pattern in the (i+3)th support group 30, wherein the third virtual point pattern is the virtual point pattern closest to the third virtual pattern among the multiple virtual point patterns in the (i+3)th support group 30. It should be noted that the connection method of the second virtual line pattern here can be combined with any of the connection methods of the first virtual line pattern described above (as shown in FIG5 and FIG6).
[0078] Optionally, to reduce wiring, as shown in Figure 8, the second virtual line pattern includes multiple series-connected second sub-segments 621. These series-connected second sub-segments 621 include three types of sub-segments: the two ends of the first type sub-segment 621a are respectively connected to two adjacent third virtual point patterns in the (i+2)th support group 30; the two ends of the second type sub-segment 621b are respectively connected to two adjacent fourth virtual point patterns in the (i+3)th support group 30; and the two ends of the third type sub-segment 621c are respectively connected to the first type sub-segment 621a and the second type sub-segment 621b. That is, the third type sub-segment 621c is used to connect the first type sub-segment 621a and the second type sub-segment 621b in series. It should be noted that the series connection method of the second virtual line pattern can be combined with any of the series connection methods of the first virtual line pattern described above (as shown in Figures 5 and 6).
[0079] In some embodiments, the support group 30 includes N groups, and the first to Nth groups of support group 30 are nested sequentially in the direction from the edge of the display panel to the center; N is a positive integer greater than or equal to 2. The orthogonal projection of a detection line 6 on the substrate 1 covers the orthogonal projection of at least a portion of the support PS in any three consecutive groups of support group 30 on the substrate 1.
[0080] In one possible implementation, as shown in FIG9, the detection line 6 includes a third detection line 63; the orthographic projection of the third detection line 63 on the substrate 1 covers the orthographic projection of at least a portion of the support portion PS within three consecutive support portion groups 30 from group 1 to group j on the substrate 1; j is an integer from 3 to N, including endpoint values; N is a positive integer greater than or equal to 4. Optionally, 4 ≤ N ≤ 10. Optionally, j is any one of 3, 4, 5, and 6.
[0081] Optionally, j=3, the orthographic projection of the third detection line 63 on the substrate 1 covers the orthographic projection of at least a portion of the support portion PS in the first to third support portion groups 30 on the substrate 1.
[0082] Optionally, j=4, the orthogonal projection of the third detection line 63 on the substrate 1 covers the orthogonal projections of at least a portion of the support portions PS in the first to fourth consecutive support groups 30 on the substrate 1. For example, the orthogonal projection of the third detection line 63 on the substrate 1 covers the orthogonal projections of at least a portion of the support portions PS in the first to third support groups 30 on the substrate 1; or, the orthogonal projection of the third detection line 63 on the substrate 1 covers the orthogonal projections of at least a portion of the support portions PS in the second to fourth support groups 30 on the substrate 1.
[0083] Optionally, j=5, the orthogonal projection of the third detection line 63 on the substrate 1 covers the orthogonal projections of at least a portion of the support portions PS in the three consecutive support groups 30 of groups 1 to 5 on the substrate 1. For example, the orthogonal projection of the third detection line 63 on the substrate 1 covers the orthogonal projections of at least a portion of the support portions PS in the support groups 1 to 3 on the substrate 1; or, the orthogonal projection of the third detection line 63 on the substrate 1 covers the orthogonal projections of at least a portion of the support portions PS in the support groups 2 to 4 on the substrate 1; or, as shown in FIG9, the orthogonal projection of the third detection line 63 on the substrate 1 covers the orthogonal projections of at least a portion of the support portions PS in the support groups 30 of groups 3 to 5 on the substrate 1.
[0084] Optionally, j=6, the orthographic projection of the third detection line 63 on the substrate 1 covers the orthographic projection of at least a portion of the support portions PS in the three consecutive support groups 30 of groups 1 to 6 on the substrate 1. For example, the orthographic projection of the third detection line 63 on the substrate 1 covers the orthographic projection of at least a portion of the support portions PS in the support groups 1 to 3 on the substrate 1; or, the orthographic projection of the third detection line 63 on the substrate 1 covers the orthographic projection of at least a portion of the support portions PS in the support groups 2 to 4 on the substrate 1; or, as shown in FIG9, the orthographic projection of the third detection line 63 on the substrate 1 covers the orthographic projection of at least a portion of the support portions PS in the support groups 30 of groups 3 to 5 on the substrate 1; or, the orthographic projection of the third detection line 63 on the substrate 1 covers the orthographic projection of at least a portion of the support portions PS in the support groups 4 to 6 on the substrate 1.
[0085] In one possible implementation, as shown in FIG9, the orthogonal projection of the third detection line 63 on the substrate 1 covers the orthogonal projections of the support portion PS located in the target support region within three consecutive support groups 30 from group 1 to group j on the substrate 1. The target support region includes at least a first support region 30a, a second support region 30b, and a third support region 30c. Optionally, the target support region includes a first support region 30a, a second support region 30b, and a third support region 30c. Optionally, the target support region includes a first support region 30a, a second support region 30b, a third support region 30c, a first sub-support region 30d1, and a second sub-support region 30d2.
[0086] Specifically, the orthographic projection of the support portion PS on the substrate 1 is a virtual dot pattern, and the orthographic projection of the third detection line 63 on the substrate 1 is a third virtual line pattern; the third virtual line pattern is connected in series with all the virtual dot patterns in the target support area of the three consecutive support portion groups 30 from the first group to the jth group.
[0087] Optionally, to reduce wiring, as shown in Figure 9, the third virtual line pattern consists of multiple connected third sub-segments, each a straight line; the intersection of two connected third sub-segments forms a virtual dot pattern. The two ends of the third sub-segment are connected to the two closest virtual dot patterns as much as possible.
[0088] The aforementioned third detection line 63 can be selected to cover the support group 30 based on the actual structural layout of the display panel. As shown in Figure 9, in order to avoid the display vias of the display panel, the third virtual line pattern is selected to cover the virtual dot patterns located in the target support area within the support groups 30 of the 3rd to 5th groups.
[0089] In one possible implementation, as shown in FIG9, the detection line 6 includes a first detection line 61 and a third detection line 63; the orthographic projection of the first detection line 61 on the substrate 1 covers the orthographic projection of at least a portion of the support portion PS in the i-th and i+1-th support portion groups 30 on the substrate 1; i takes an integer from 1 to N-1, including endpoint values; the orthographic projection of the third detection line 63 on the substrate 1 covers the orthographic projection of at least a portion of the support portion PS in the i+2 to i+4-th support portion groups 30 on the substrate 1.
[0090] Optionally, i = 1; that is, the orthogonal projection of the first detection line 61 on the substrate 1 covers the orthogonal projection of at least a portion of the support portion PS in the first and second support groups 30 on the substrate 1; the orthogonal projection of the third detection line 63 on the substrate 1 covers the orthogonal projection of at least a portion of the support portion PS in the third to fifth support groups 30 on the substrate 1.
[0091] For example, the first virtual line pattern covers all virtual dot patterns located within the target support area in the first and second support groups 30. The third virtual line pattern covers all virtual dot patterns located within the target support area in the third to fifth support groups 30.
[0092] In one possible implementation, the detection line 6 includes two third detection lines 63. The orthographic projection of the third detection lines 63 onto the substrate 1 covers the orthographic projection of at least a portion of the support portions PS within three consecutive support groups 30 from group 1 to group j onto the substrate 1. The orthographic projections of the two third detection lines 63 onto the substrate 1 do not overlap. The support groups 30 covered by the orthographic projections of the two third detection lines 63 onto the substrate 1 are adjacent. j is an integer from 6 to N, including endpoint values. N is a positive integer greater than or equal to 6. Optionally, 6 ≤ N ≤ 12. Optionally, j is 6 or 7.
[0093] Optionally, j = 6. The orthographic projection of a third detection line 63 on the substrate 1 covers the orthographic projection of at least a portion of the support portion PS in the first to third support groups 30 on the substrate 1; the orthographic projection of another third detection line 63 on the substrate 1 covers the orthographic projection of at least a portion of the support portion PS in the fourth to sixth support groups 30 on the substrate 1.
[0094] Optionally, j = 7. The orthographic projection of a third detection line 63 on the substrate 1 covers the orthographic projection of at least a portion of the support portion PS in the second to fourth support groups 30 on the substrate 1; the orthographic projection of another third detection line 63 on the substrate 1 covers the orthographic projection of at least a portion of the support portion PS in the fifth to seventh support groups 30 on the substrate 1.
[0095] In some embodiments, as shown in FIG10, the support group 30 includes N groups, and the first to Nth groups of support group 30 are nested sequentially in the direction from the edge of the display panel to the center; N is a positive integer greater than or equal to 2. The orthogonal projection of a detection line 6 on the substrate 1 covers the orthogonal projection of at least a portion of the support PS in any four consecutive groups of support group 30 on the substrate 1.
[0096] In one possible implementation, as shown in FIG10, the detection line 6 includes a fourth detection line 64; the orthographic projection of the fourth detection line 64 on the substrate 1 covers the orthographic projection of at least a portion of the support portion PS within four consecutive support portion groups 30 from group 1 to group k on the substrate 1; k is an integer from 4 to N, including endpoint values; N is a positive integer greater than or equal to 5. Optionally, 5 ≤ N ≤ 12. Optionally, k is any one of 4, 5, and 6.
[0097] Optionally, k=4, the orthographic projection of the third detection line 63 on the substrate 1 covers the orthographic projection of at least a portion of the support portion PS in the support portion groups 1 to 4 on the substrate 1.
[0098] Optionally, k=5, the orthogonal projection of the fourth detection line 64 on the substrate 1 covers the orthogonal projections of at least a portion of the support portions PS in the four consecutive support groups 30 from the first to the fifth group on the substrate 1. For example, the orthogonal projection of the third detection line 63 on the substrate 1 covers the orthogonal projections of at least a portion of the support portions PS in the first to the fourth group on the substrate 1; or, the orthogonal projection of the third detection line 63 on the substrate 1 covers the orthogonal projections of at least a portion of the support portions PS in the second to the fifth group on the substrate 1.
[0099] Optionally, k=6, the orthogonal projection of the fourth detection line 64 on the substrate 1 covers the orthogonal projections of at least a portion of the support portions PS in the four consecutive support groups 30 from group 1 to group 6 on the substrate 1. For example, the orthogonal projection of the third detection line 63 on the substrate 1 covers the orthogonal projections of at least a portion of the support portions PS in the support groups 30 from group 1 to group 4 on the substrate 1. Alternatively, the orthogonal projection of the third detection line 63 on the substrate 1 covers the orthogonal projections of at least a portion of the support portions PS in the support groups 30 from group 2 to group 5 on the substrate 1; or, as shown in FIG10, the orthogonal projection of the third detection line 63 on the substrate 1 covers the orthogonal projections of at least a portion of the support portions PS in the support groups 30 from group 3 to group 6 on the substrate 1.
[0100] In one possible implementation, as shown in FIG10, the orthogonal projection of the fourth detection line 64 on the substrate 1 covers the orthogonal projections of the support portion PS located in the target support region within four consecutive support groups 30 from the first to the kth group on the substrate 1. The target support region includes at least a first support region 30a, a second support region 30b, and a third support region 30c. Optionally, the target support region includes a first support region 30a, a second support region 30b, and a third support region 30c. Optionally, the target support region includes a first support region 30a, a second support region 30b, a third support region 30c, a first sub-support region 30d1, and a second sub-support region 30d2.
[0101] Specifically, as shown in Figure 10, the orthographic projection of the support PS on the substrate 1 is a virtual dot pattern, and the orthographic projection of the fourth detection line 64 on the substrate 1 is a fourth virtual line pattern; the fourth virtual line pattern is connected in series with all the virtual dot patterns in the target support area of the four consecutive support groups 30 from the first group to the kth group.
[0102] Optionally, to reduce wiring, as shown in Figure 10, the fourth virtual line pattern includes multiple connected fourth sub-segments, each a straight line; the intersection of two connected fourth sub-segments forms a virtual dot pattern. The two ends of the fourth sub-segment are connected to the two closest virtual dot patterns as much as possible.
[0103] In one possible implementation, as shown in FIG10, the detection line 6 includes a first detection line 61 and a fourth detection line 64; the orthographic projection of the first detection line 61 on the substrate 1 covers the orthographic projection of at least a portion of the support portion PS in the i-th and i+1-th support portion groups 30 on the substrate 1; i takes an integer from 1 to N-1, including endpoint values; the orthographic projection of the fourth detection line 64 on the substrate 1 covers the orthographic projection of at least a portion of the support portion PS in the i+2 to i+5-th support portion groups 30 on the substrate 1.
[0104] Optionally, i = 1; that is, the orthogonal projection of the first detection line 61 on the substrate 1 covers the orthogonal projection of at least a portion of the support portion PS in the first and second support portions 30 on the substrate 1; the orthogonal projection of the fourth detection line 64 on the substrate 1 covers the orthogonal projection of at least a portion of the support portion PS in the third to fifth support portions 30 on the substrate 1.
[0105] For example, the first virtual line pattern covers all virtual dot patterns located within the target support area in the first and second support groups 30. The fourth virtual line pattern covers all virtual dot patterns located within the target support area in the third to sixth support groups 30.
[0106] In one possible implementation, the detection line 6 includes two fourth detection lines 64. The orthographic projection of the fourth detection lines 64 onto the substrate 1 covers the orthographic projection of at least a portion of the support portions PS within four consecutive support groups 30 from the first to the kth group onto the substrate 1. The orthographic projections of the two fourth detection lines 64 onto the substrate 1 do not overlap. The support groups 30 covered by the orthographic projections of the two fourth detection lines 64 onto the substrate 1 are adjacent. k is an integer from 8 to N, including endpoint values. N is a positive integer greater than or equal to 16. Optionally, 8 ≤ N ≤ 16.
[0107] Optionally, j is 8. The orthographic projection of a third detection line 63 on the substrate 1 covers the orthographic projection of at least a portion of the support portion PS in the first to fourth support groups 30 on the substrate 1; the orthographic projection of another third detection line 63 on the substrate 1 covers the orthographic projection of at least a portion of the support portion PS in the fifth to eighth support groups 30 on the substrate 1.
[0108] The display panel can choose to combine any two of the above-mentioned first detection line 61, second detection line 62, third detection line 63, and fourth detection line 64. For example, the display panel includes the first detection line 61 and the second detection line 62; wherein the first virtual line pattern corresponding to the first detection line 61 covers all virtual dot patterns located within the target support area in the first and second support groups 30; and the second virtual line pattern corresponding to the second detection line 62 covers all virtual dot patterns located within the target support area in the second and third support groups 30. Alternatively, the display panel can include the first detection line 61 and the third detection line 63; wherein the first virtual line pattern corresponding to the first detection line 61 covers all virtual dot patterns located within the target support area in the first and second support groups 30; and the third virtual line pattern corresponding to the third detection line 63 covers all virtual dot patterns located within the target support area in the third to fifth support groups 30. For example, the display panel includes a first detection line 61 and a fourth detection line 64; wherein, the first virtual line pattern corresponding to the first detection line 61 covers all virtual dot patterns located within the target support area in the first and second support groups 30; the fourth virtual line pattern corresponding to the fourth detection line 64 covers all virtual dot patterns located within the target support area in the third to sixth support groups 30. For another example, the display panel includes a second detection line 61 and a third detection line 63; wherein, the second virtual line pattern corresponding to the second detection line 62 covers all virtual dot patterns located within the target support area in the second and third support groups 30; the third virtual line pattern corresponding to the third detection line 63 covers all virtual dot patterns located within the target support area in the fourth to sixth support groups 30. For example, the display panel includes a second detection line 61 and a fourth detection line 64; wherein, the second virtual line pattern corresponding to the second detection line 62 covers all virtual dot patterns located within the target support area in the second and third support groups 30; the fourth virtual line pattern corresponding to the fourth detection line 64 covers all virtual dot patterns located within the target support area in the fourth to seventh support groups 30. For another example, the display panel includes a third detection line 63 and a fourth detection line 64. The third virtual line pattern corresponding to the third detection line 63 covers all virtual dot patterns located within the target support area in the first to third support groups 30; the fourth virtual line pattern corresponding to the fourth detection line 64 covers all virtual dot patterns located within the target support area in the fourth to seventh support groups 30.
[0109] In some embodiments, as shown in FIG2, the display panel further includes a touch functional layer TSP disposed on the side of the encapsulation layer 4 away from the support layer 3; the touch functional layer TSP includes a first touch layer TMA, a touch insulating layer TLD, and a second touch layer TMB sequentially disposed along the direction away from the substrate 1; the first touch layer TMA includes a bridging structure (not shown in the figure) for connecting the touch electrodes. As shown in FIG5 to FIG10, the second touch layer TMB includes a first touch electrode 81 and a second touch electrode 82; the first touch electrode 81 includes a plurality of electrode blocks, and adjacent electrode blocks are electrically connected through the bridging structure; the detection line 6 is located in the first touch layer TMA. One of the first touch electrode 81 and the second touch electrode 82 is a transmitting electrode (Tx), and the other is a receiving electrode (Rx).
[0110] Here, the detection line 6 and the bridging structure are located on the same layer, that is, both are located in the first touch layer TMA. The detection line 6 and the bridging structure are made of the same material, and the detection line 6 and the bridging structure can be formed using the same patterning process, which improves process efficiency, reduces the number of photomasks, and thus saves process costs.
[0111] Optionally, the detection line 6 and the bridging structure do not overlap on the substrate 1. The electrode blocks have a large area, and the bridging structure, as the structure for electrically connecting the electrode blocks, only occupies a small amount of wiring space in the first touch layer TMA, namely the intersection area of the first and second touch electrodes. Apart from the small number of bridging structures, the remaining large area of the first touch layer TMA is blank, facilitating the placement of the detection line 6 and avoiding any impact on other wiring layers or other wiring signals.
[0112] Optionally, the touch function layer TSP also includes a touch buffer layer TBL disposed on the side of the first touch layer TMA near the encapsulation layer 4.
[0113] Optionally, the touch function layer TSP also includes a touch protection layer (not shown in the figure) disposed on the side of the second touch layer TMB away from the touch insulating layer TLD.
[0114] For example, the materials of any one of the touch insulating layer (TLD), touch buffer layer (TBL), and touch protective layer may include, but are not limited to, one or more combinations of silicon nitride, silicon oxide, silicon oxynitride, aluminum oxide, and titanium oxide. Of course, the material of the touch buffer layer (TBL) can also be an organic material, which can improve the amount of touch signal and effectively reduce the bending radius of the display panel.
[0115] For example, the material of the organic encapsulation layer 43 may include, but is not limited to, one or more combinations of resin materials such as acrylic, polyimide, epoxy resin, polyester, photoresist, polyacrylate, polyamide, and siloxane; or elastic materials such as urethane and thermoplastic polyurethane (TPU).
[0116] For example, the materials of the first inorganic encapsulation layer 41 and the second inorganic encapsulation layer 42 may include, but are not limited to, one or more combinations of inorganic materials such as silicon nitride, silicon oxide, and silicon oxynitride.
[0117] For example, the material of the substrate 1 may include, but is not limited to, polyimide (PI), polyethylene naphthalene-2,6-dicarboxylate (PEN), polyethylene terephthalate (PET), colorless polyimide (CPI) with flexible plastic properties, thermoplastic polyurethane (TUP), or ultra-thin glass (UTG). The substrate 1 may also be made of rigid and transparent materials such as glass, which can effectively support other film layers on it. In practical applications, appropriate materials can be selected according to actual needs. For example, the substrate 1 may be a single-layer structure or a multi-layer structure. In a multi-layer substrate 1, inorganic thin films can be added between the layers to act as buffer layers. The buffer layer material may be one or more layers of amorphous silicon (a-Si), silicon nitride (SiNx), or silicon oxide (SiOx).
[0118] As exemplarily shown in FIG2, the display panel further includes a pixel driving circuit disposed on the side of the light-emitting device 5 near the substrate 1. The pixel driving circuit is used to drive the light-emitting device 5. Specifically, the pixel driving circuit includes a driving transistor T, which is electrically connected to the first electrode 51 of the light-emitting device 5. The light-emitting device 5 includes a first electrode 51, a light-emitting layer 53, and a second electrode 52 disposed sequentially along the direction away from the substrate 1. One of the first electrode 51 and the second electrode 52 is an anode, and the other is a cathode. This disclosure will be described using an example where the first electrode 51 is the anode of the light-emitting device 5.
[0119] Additionally, embodiments of this disclosure also provide a mask configured to form a pattern of a first touch layer TMA in a patterning process. The first touch layer TMA includes at least one detection line 6 and a bridging structure.
[0120] In addition, this disclosure also provides a display device, which includes the display panel of any of the above embodiments. This display device can be, for example, any product with a display function such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or in-vehicle device. Other essential components of this display device are those that should be understood by those skilled in the art, and will not be described in detail here, nor should they be construed as limiting this disclosure.
[0121] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.
Claims
1. A display panel, comprising a substrate, a pixel defining layer disposed on the substrate, a support layer disposed on a side of the pixel defining layer opposite to the substrate, and an encapsulation layer disposed on the support layer opposite to the pixel defining layer; The support layer includes multiple nested support groups, and each support group includes multiple support parts distributed in a ring shape. The display panel further includes at least one detection line disposed on the side of the encapsulation layer opposite to the support layer; the orthographic projection of the detection line on the substrate covers at least a portion of the orthographic projection of the support portion in at least one group of support portions on the substrate; the two ends of the detection line are electrically connected to a driving chip.
2. The display panel according to claim 1, wherein, The support assembly comprises N groups, and the first to Nth groups of the support assembly are nested sequentially in the direction from the edge of the display panel to the center; N is a positive integer greater than or equal to 2; the detection line includes a first detection line; The orthographic projection of the first detection line on the substrate covers the orthographic projections of at least a portion of the supports in the i-th group of supports on the substrate, and the orthographic projections of at least a portion of the supports in the (i+1)-th group of supports on the substrate. i takes an integer from 1 to N-1, including endpoint values.
3. The display panel according to claim 2, wherein, The detection line also includes a second detection line; The orthogonal projection of the second detection line on the substrate covers the orthogonal projections of at least a portion of the supports in the (i+2)th support group and at least a portion of the supports in the (i+3)th support group on the substrate.
4. The display panel according to claim 2 or 3, wherein, i can be any one of 1, 2, and 3.
5. The display panel according to claim 2, wherein, The support assembly has a first support area and a second support area disposed opposite to each other along a first direction, and a third support area and a fourth support area disposed opposite to each other along a second direction; the third support area is further away from the driver chip than the fourth support area. The first direction and the second direction are intersected; The orthographic projection of the support portion onto the substrate is a virtual dot pattern, and the orthographic projection of the first detection line onto the substrate is a first virtual line pattern. The first virtual line pattern is connected in series with all the virtual point patterns located within the target support area in the i-th group of support parts and the (i+1)-th group of support parts; The target support area includes at least the first support area, the second support area, and the third support area.
6. The display panel according to claim 5, wherein, The first virtual line pattern includes multiple connected first sub-line segments; at least one end of a portion of the first sub-line segments is connected to a first virtual point pattern in the i-th group of support parts, and the other end is connected to a second virtual point pattern in the (i+1)-th group of support parts, and the second virtual point pattern is the virtual point pattern closest to the first virtual pattern among the multiple virtual point patterns in the (i+1)-th group of support parts.
7. The display panel according to claim 3, wherein, The support assembly has a first support area and a second support area disposed opposite to each other along a first direction, and a third support area and a fourth support area disposed opposite to each other along a second direction; the third support area is further away from the driver chip than the fourth support area. The first direction and the second direction are intersected; The orthographic projection of the support portion onto the substrate is a virtual dot pattern, and the orthographic projection of the second detection line onto the substrate is a second virtual line pattern; The second virtual line pattern is connected in series with all the virtual point patterns located within the target support area in the (i+2)th and (i+3)th support groups; The target support area includes at least the first support area, the second support area, and the third support area.
8. The display panel according to claim 7, wherein, The second virtual line pattern includes multiple connected second sub-line segments; at least one end of a portion of the second sub-line segments is connected to a third virtual point pattern in the support group of the (i+2)th group, and the other end is connected to a fourth virtual point pattern in the support group of the (i+3)th group, and the third virtual point pattern is the virtual point pattern closest to the third virtual pattern among the multiple virtual point patterns in the support group of the (i+3)th group.
9. The display panel according to claim 1, wherein, The support assembly comprises N groups, and the first to Nth groups of the support assembly are nested sequentially in the direction from the edge of the display panel to the center; N is a positive integer greater than or equal to 2; the detection line includes a third detection line; The orthographic projection of the third detection line on the substrate covers at least a portion of the orthographic projection of the support portion on the substrate within three consecutive support portion groups from group 1 to group j; j is an integer from 3 to N, including endpoint values; N is a positive integer greater than or equal to 4.
10. The display panel according to claim 9, wherein, The support assembly has a first support area and a second support area disposed opposite to each other along a first direction, and a third support area and a fourth support area disposed opposite to each other along a second direction; the third support area is further away from the driver chip than the fourth support area. The first direction and the second direction are intersected; The orthographic projection of the support portion onto the substrate is a virtual dot pattern, and the orthographic projection of the third detection line onto the substrate is a third virtual line pattern; The third virtual line pattern is connected in series with all the virtual point patterns located within the target support area in three consecutive support groups from group 1 to group j; the target support area includes the first support area, the second support area and the third support area.
11. The display panel according to claim 1, wherein, The support assembly comprises N groups, and the first to Nth groups of the support assembly are nested sequentially in the direction from the edge of the display panel to the center; N is a positive integer greater than or equal to 2; the detection line includes a first detection line and a third detection line; The orthogonal projection of the first detection line onto the substrate covers the orthogonal projections of at least a portion of the support portions in the i-th and i+1-th support portions onto the substrate; i is an integer from 1 to N-1, including endpoint values; The orthogonal projection of the third detection line on the substrate covers the orthogonal projection of at least a portion of the support portions in the i+2 to i+4 groups on the substrate.
12. The display panel according to claim 11, wherein, i＝1。 13. The display panel according to claim 1, wherein, The support assembly comprises N groups, and the first to Nth groups of the support assembly are nested sequentially in the direction from the edge of the display panel to the center; N is a positive integer greater than or equal to 2; the detection line includes a fourth detection line; The orthographic projection of the fourth detection line on the substrate covers at least a portion of the orthographic projection of the support portion on the substrate within four consecutive support portion groups from group 1 to group k; k is an integer from 4 to N, including endpoint values; N is a positive integer greater than or equal to 5.
14. The display panel according to claim 13, wherein, The support assembly has a first support area and a second support area disposed opposite to each other along a first direction, and a third support area and a fourth support area disposed opposite to each other along a second direction; the third support area is further away from the driver chip than the fourth support area. The first direction and the second direction are intersected; The orthographic projection of the support portion on the substrate is a virtual dot pattern, and the orthographic projection of the fourth detection line on the substrate is a fourth virtual line pattern. The fourth virtual line pattern is connected in series with all the virtual point patterns located within the target support area in three consecutive support groups from group 1 to group k; the target support area includes the first support area, the second support area and the third support area.
15. The display panel according to claim 1, wherein, The display panel also includes a touch function layer disposed on the side of the encapsulation layer away from the support layer; The touch functional layer includes a first touch layer, a touch insulating layer, and a second touch layer, which are sequentially disposed along a direction away from the substrate. The first touch layer includes a bridging structure for connecting the touch electrodes; the second touch layer includes a first touch electrode and a second touch electrode; the first touch electrode includes a plurality of electrode blocks, and adjacent electrode blocks are electrically connected through the bridging structure. The detection line is located in the first touch layer.
16. The display panel according to claim 15, wherein, The detection line does not overlap with the orthographic projection of the bridging structure onto the substrate.
17. A display device comprising a display panel as claimed in any one of claims 1 to 16.