Display panel, method for manufacturing display panel, and display device

Abstract

This application discloses a display panel, a method for manufacturing the display panel, and a display device. The display panel includes a flexible substrate, a flexible support layer disposed on one side of the flexible substrate, and a pixel array disposed on the side of the flexible support layer away from the flexible substrate. The pixel array includes multiple columns of pixel units arranged along a first direction. The i-th pixel unit in the n-th column along a second direction is connected to the (i-1)-th pixel unit in the (n+1)-th column along the second direction via a first flexible pixel bridge in the flexible support layer; or, the i-th pixel unit in the n-th column along the second direction is connected to the (i+1)-th pixel unit in the (n+1)-th column along the second direction via a first flexible pixel bridge in the flexible support layer. The display panel provided by this application can connect the various pixel units using flexible pixel bridges arranged along the same inclined direction, thereby increasing the number of pixel units while improving the tensile stability of the display panel.

Description

Technical Field

[0001] This disclosure generally relates to the field of display device technology, and specifically to a display panel, a method for manufacturing the display panel, and a display device. Background Technology

[0002] With the continuous development of stretchable electronic materials and the ongoing optimization of stretchable device structures, the applications of stretchable electronic devices are becoming increasingly widespread. Among them, stretchable organic light-emitting devices (SOLEDs), as an important component of stretchable electronic devices, have broad application prospects in various fields due to their excellent mechanical stretchability and photoelectric properties.

[0003] However, in the existing technology, stretchable electronic devices are prone to uneven stress in certain areas during the stretching process due to poor stretching stability, which can cause abnormal display of the stretchable electronic devices.

[0004] Therefore, the poor tensile stability of stretchable electronic devices has become an urgent problem to be solved. Summary of the Invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a display panel, a method for manufacturing a display panel, and a display device. The display panel provided in this application can connect each pixel unit by using flexible pixel bridges arranged along the same inclined direction, so as to improve the tensile stability of the display panel while increasing the number of pixel units.

[0006] According to a first aspect of this application, a display panel is provided, comprising: a flexible substrate, a flexible support layer disposed on one side of the flexible substrate, and a pixel array disposed on the side of the flexible support layer away from the flexible substrate, the pixel array comprising multiple columns of pixel units arranged along a first direction.

[0007] The i-th pixel unit in the nth column along the second direction and the (i-1)-th pixel unit in the (n+1)-th column along the second direction are connected by a first flexible pixel bridge in a flexible support layer. The first flexible pixel bridge is disposed on the opposite edges of the i-th pixel unit and the (i-1)-th pixel unit; or...

[0008] The i-th pixel unit in the n-th column along the second direction and the i+1-th pixel unit in the (n+1)-th column along the second direction are connected by a first flexible pixel bridge in the flexible support layer. The first flexible pixel bridge is disposed on the opposite edges of the i-th pixel unit and the (i+1)-th pixel unit.

[0009] In addition, the display panel of this application may also have the following additional technical features:

[0010] In one possible example, the first pixel unit of the first column of pixel units arranged along the first direction in the pixel array is connected to at least one adjacent pixel unit through a second flexible pixel bridge of a flexible support layer.

[0011] The last pixel unit in the last column of pixel units arranged along the first direction in the pixel array along the second direction is connected to at least one adjacent pixel unit through a second flexible pixel bridge of a flexible support layer.

[0012] In one possible example, the last pixel unit of the first column of pixel units arranged along the first direction in the pixel array along the second direction is connected to at least one adjacent pixel unit through a second flexible pixel bridge of a flexible support layer.

[0013] The first pixel unit of the last column of pixel units arranged along the first direction in the pixel array is connected to at least one adjacent pixel unit through a second flexible pixel bridge of a flexible support layer.

[0014] In one possible example, the second flexible pixel bridge has an angle with the first direction.

[0015] In one possible example, the first flexible pixel bridge includes a first flexible connection portion and a second flexible connection portion, which are arranged in parallel.

[0016] In one possible example, each pixel unit is connected to its adjacent pixel unit along the first direction via a third flexible pixel bridge of a flexible support layer.

[0017] In one possible example, the third flexible pixel bridge has an angle with the first direction.

[0018] In one possible example, the first flexible pixel bridge includes a first flexible portion, a second flexible portion, and a signal transmission portion; the first flexible portion is disposed at one end of the signal transmission portion near the first pixel unit, the second flexible portion is disposed at one end of the signal transmission portion near the second pixel unit, the first flexible portion and the first pixel unit connected to the first flexible pixel bridge are disposed opposite each other in the orthographic projection direction, and the second flexible portion and the second pixel unit connected to the first flexible pixel bridge are disposed opposite each other in the orthographic projection direction.

[0019] In one possible example, the signal transmission section is connected to the pixel electrodes of the first pixel unit and the second pixel unit, respectively.

[0020] In one possible example, the material of the signal transmission section is indium tin oxide.

[0021] According to a second aspect of this application, a method for manufacturing a display panel is provided, the method comprising:

[0022] A first flexible pixel bridge is fabricated at a predetermined position on a flexible substrate;

[0023] A flexible support layer is prepared on the side of the flexible substrate where the first flexible pixel bridge is located;

[0024] A pixel array is fabricated on the side of the flexible support layer away from the flexible substrate. The pixel array includes multiple columns of pixel units arranged along a first direction. A first flexible pixel bridge is used to connect the i-th pixel unit in the n-th column of the pixel array along the second direction with the (i-1)-th pixel unit in the (n+1)-th column of the pixel array along the second direction; or it is used to connect the i-th pixel unit in the n-th column of the pixel array along the second direction with the (i+1)-th pixel unit in the (n+1)-th column of the pixel array along the second direction.

[0025] According to a third aspect of this application, a display device is provided, which includes the display panel of the first aspect.

[0026] The display panel, the method for manufacturing the display panel, and the display device provided in this application embodiment, on the one hand, by arranging the tilting direction of the flexible pixel bridges in the display panel in the same direction, can ensure that the movement direction of the flexible pixel bridges remains consistent when the display panel is in a stretched or contracted state, thereby enabling the various parts within the display panel to be subjected to uniform force and improving the tensile stability of the display panel; on the other hand, by setting the flexible pixel bridges inside the display panel to a tilted state, the space occupied by the flexible pixel bridges can be reduced, thereby increasing the number of pixel units without changing the internal space of the display panel, thereby increasing the pixel density of the display panel.

[0027] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0029] Figure 1 One of the cross-sectional schematic diagrams of the display panel 10 provided in the embodiments of this application;

[0030] Figure 2 One of the top views of the pixel array 300 provided in the embodiments of this application;

[0031] Figure 3 A second top view of the pixel array 300 provided in an embodiment of this application;

[0032] Figure 4A second cross-sectional schematic diagram of the display panel 10 provided in an embodiment of this application;

[0033] Figure 5 This is one of the partial top views of the pixel array 300 provided in the embodiments of this application;

[0034] Figure 6 This is a second partial top view of the pixel array 300 provided in the embodiments of this application;

[0035] Figure 7 A third cross-sectional schematic diagram of the display panel 10 provided in an embodiment of this application;

[0036] Figure 8 A third top view of the display panel 10 provided in the embodiments of this application;

[0037] Figure 9 A schematic flowchart illustrating the method for manufacturing the display panel 10 provided in this embodiment of the application;

[0038] Figure 10 This is one of the stretched schematic diagrams of the display panel 10 provided in the embodiments of this application;

[0039] Figure 11 This is a second stretched schematic diagram of the display panel 10 provided in the embodiments of this application;

[0040] In the above image:

[0041] 10-Display panel; 100-Flexible substrate; 200-Flexible support layer; 300-Pixel array; 310-Pixel unit; 201-First flexible pixel bridge; 311-Pixel substrate; 312-Pixel driving substrate; 313-Pixel layer; 3131-Pixel light-emitting area; 3132-Pixel encapsulation area; 401-First sub-pixel; 402-Second sub-pixel; 403-Third sub-pixel; 404-Pixel electrode; 202-Second flexible pixel bridge; 2011-First flexible connection; 2012-Second flexible connection; 203-Third flexible pixel bridge; 701-First flexible part; 702-Second flexible part; 703-Signal transmission part. Detailed Implementation

[0042] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present application will now be described in detail with reference to the accompanying drawings and embodiments. Furthermore, the term "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The terms "first" and "second," etc., in the specification and claims of the embodiments of this application are used to distinguish different objects, not to describe a specific order of objects.

[0044] Currently, with the continuous development of stretchable electronic materials and the ongoing optimization of stretchable device structures, stretchable electronic devices can maintain their original functions while possessing both flexibility and stretchability, leading to their increasingly widespread applications. Among these, stretchable organic light-emitting devices (SOLEDs), as an important component of stretchable electronic devices, have broad application prospects in various fields due to their excellent mechanical stretchability and photoelectric properties.

[0045] However, existing stretchable electronic devices are prone to uneven stress distribution during stretching due to poor tensile stability, leading to display abnormalities. Therefore, the poor tensile stability of stretchable electronic devices is a problem that urgently needs to be addressed.

[0046] Based on this, this application proposes a display panel that can connect various pixel units using flexible pixel bridges arranged along the same tilt direction, so as to improve the tensile stability of the display panel while increasing the number of pixel units.

[0047] Figure 1 This is one of the cross-sectional schematic diagrams of the display panel 10 provided in the embodiments of this application, such as... Figure 1 As shown, the display panel 10 includes a flexible substrate 100, a flexible support layer 200 disposed on one side of the flexible substrate 100, and a pixel array 300 disposed on the side of the flexible support layer 200 away from the flexible substrate 100. The pixel array 300 includes multiple columns of pixel units 310 arranged along a first direction.

[0048] For example, the flexible substrate 100, as the substrate material of the display panel 10, can have the characteristics of low coefficient of expansion, high surface flatness and flexible stretchability. Its manufacturing material can be, for example, polymer, glass or other materials; wherein, the flexible substrate 100 can also be called a stretchable substrate.

[0049] For example, the flexible support layer 200 can be used to provide support to the pixel array 300 and to connect the individual pixel units 310 in the pixel array 300; wherein, the flexible support layer 200 can also be referred to as a flexible substrate.

[0050] Specifically, the flexible support layer 200 can connect the individual pixel units 310 in the pixel array 300 using the flexible pixel bridges set inside it.

[0051] For example, Figure 2 This is one of the top views of the pixel array 300 provided in the embodiments of this application, such as... Figure 2 As shown, the i-th pixel unit 310 of the n-th column pixel unit along the second direction and the i-1-th pixel unit 310 of the (n+1)-th column pixel unit along the second direction in the pixel array 300 are connected by the first flexible pixel bridge 201 of the flexible support layer 200. The first flexible pixel bridge 201 is disposed on the opposite edges of the i-th pixel unit 310 and the i-1-th pixel unit 310.

[0052] For example, refer to Figure 2 When the pixel units 310 are arranged in a 4*4 pixel array 300, the fourth pixel unit 310 located in the first column of the pixel array 300 along the second direction can be connected to the third pixel unit 310 in the second column of the pixel array 300 along the second direction through the first flexible pixel bridge 201. That is, the pixel unit 310 with coordinates (1, 1) in the pixel array 300 can be connected to the pixel unit 310 with coordinates (2, 2) through the first flexible pixel bridge 201.

[0053] Optionally, Figure 3 This is a second top view of the pixel array 300 provided in the embodiments of this application, as shown below. Figure 3 As shown, the i-th pixel unit 310 of the n-th column pixel unit along the second direction and the i+1-th pixel unit 310 of the (n+1)-th column pixel unit along the second direction are connected by a first flexible pixel bridge 201 of the flexible support layer 200. The first flexible pixel bridge 201 is disposed on the opposite edges of the i-th pixel unit 310 and the (i+1)-th pixel unit 310.

[0054] For example, refer to Figure 3 When the pixel units 310 are arranged in a 4*4 pixel array 300, the second pixel unit 310 located in the first column of the pixel array 300 along the second direction can be connected to the third pixel unit 310 in the second column of the pixel array 300 along the second direction through the first flexible pixel bridge 201. That is, the pixel unit 310 with coordinates (3, 1) in the pixel array 300 can be connected to the pixel unit 310 with coordinates (2, 2) through the first flexible pixel bridge 201.

[0055] For example, the first direction can be the arrangement direction of each column of pixel units 310 in the pixel array 300, for reference. Figure 1 If the arrangement direction of each column of pixel units 310 is horizontal, then the first direction is specifically the horizontal direction; while the second direction can be the vertical direction of the first direction, so the second direction can be the vertical direction perpendicular to the horizontal direction.

[0056] For example, the degree of tilt of the first flexible pixel bridge 201 can be represented by the size of the tilt angle of the first flexible pixel bridge 201.

[0057] For example, when the first direction is horizontal, the tilt angle of the first flexible pixel bridge 201 is specifically the smallest positive angle that the straight line containing the first direction rotates counterclockwise around its intersection with the first flexible pixel bridge 201 until it coincides with the first flexible pixel bridge 201. Therefore, the larger the tilt angle of the first flexible pixel bridge 201, the greater the degree of tilt of the first flexible pixel bridge 201.

[0058] It should be noted that, as Figure 2 As shown, the first flexible pixel bridge 201 is used to connect the i-th pixel unit 310 of the n-th column pixel unit along the second direction and the (i-1)-th pixel unit 310 of the (n+1)-th column pixel unit along the second direction in the pixel array 300. Therefore, in this embodiment, the tilt angle of the first flexible pixel bridge 201 is less than 90°; Figure 3 As shown, the first flexible pixel bridge 201 is used to connect the i-th pixel unit 310 of the n-th column pixel unit along the second direction and the i+1-th pixel unit 310 of the (n+1)-th column pixel unit along the second direction in the pixel array 300. Therefore, in this embodiment, the tilt angle of the first flexible pixel bridge 201 is greater than 90°.

[0059] For example, the tilt of the first flexible pixel bridge 201 in the pixel array 300 can be the same or different, and no specific limitation is made here.

[0060] For example, the tilt angle of the first flexible pixel bridge 201 in the pixel array 300 can be set as follows: Figure 2 The same tilt angle shown (i.e., the tilt angles of the first flexible pixel bridges 201 are all less than 90° and are the same size) can make the force on each part of the display panel 20 more uniform when the display panel 20 is stretched or contracted along the first direction (i.e., the horizontal direction).

[0061] Optionally, the tilt angle of the first flexible pixel bridge 201 in the pixel array 300 can be set as follows: Figure 3The same tilt angle shown (i.e., the tilt angles of the first flexible pixel bridge 201 are all greater than 90° and are the same in size) can make the force on each part of the display panel 20 more uniform when the display panel 20 is stretched or contracted along the second direction (i.e., the vertical direction).

[0062] For example, the two ends of the first flexible pixel bridge 201 can be respectively disposed on the opposite edges of the two pixel units 310, and the specific placement of the two ends of the first flexible pixel bridge 201 on the edges of the pixel units 310 is not specifically limited here.

[0063] For example, the two ends of the first flexible pixel bridge 201 can be respectively set at the corner position of the edge of the pixel unit 310; or one end of the first flexible pixel bridge 201 can be set at the corner position of the edge of the pixel unit 310, and the other end can be set at the non-corner position of the edge of the pixel unit 310.

[0064] In one possible implementation, Figure 4 This is a second cross-sectional schematic diagram of the display panel 10 provided in the embodiments of this application, as shown below. Figure 4 As shown, the pixel unit 310 may include a pixel substrate 311, a pixel driving substrate 312 disposed on one side of the pixel substrate 311, and a pixel layer 313 disposed on the side of the pixel driving substrate 312 away from the pixel substrate 311; wherein, the pixel unit 310 may also be referred to as a rigid pixel island.

[0065] For example, the pixel layer 313 may include a pixel light-emitting region 3131 and a pixel encapsulation region 3132, wherein the pixel encapsulation region 3132 may be arranged around the pixel light-emitting region 3131 to provide encapsulation protection for the pixel light-emitting region 3131.

[0066] For example, pixel light-emitting material can be deposited by vapor deposition at a preset position on the side of the pixel driving substrate 312 away from the pixel substrate 311 to form a pixel light-emitting region 3131.

[0067] Specifically, the pixel luminous region 3131 may include a first sub-pixel 401, a second sub-pixel 402, and a third sub-pixel 403. The first sub-pixel 401, the second sub-pixel 402, and the third sub-pixel 403 may be, for example, a red pixel, a green pixel, and a blue pixel, respectively. The pixel distribution of the pixel luminous region 3131 is not specifically limited here.

[0068] For example, the pixel electrode 404 of the pixel unit 310 can be disposed on the pixel substrate 311 so that the pixel driving signal can be transmitted to the pixel driving substrate 312 through the pixel electrode 404 on the pixel substrate 311, so that the pixel light-emitting region 3131 can be driven to emit light by the pixel driving substrate 312.

[0069] For example, such as Figure 4 As shown, the pixel electrode 404 of the pixel unit 310 can be disposed at the outer corner of the pixel driving substrate 312 to facilitate the production of the pixel electrode 404.

[0070] Specifically, when the orthographic projection shape of the pixel unit 310 is rectangular, the outer corner of the pixel driving substrate 312 along the orthographic projection direction can be the vertex of the rectangle.

[0071] For example, based on the pixel units 310 array arranged on one side of the flexible support layer 200, the side of the pixel substrate 311 away from the pixel driving substrate 312 can be connected to the flexible support layer 200.

[0072] The display panel 10 provided in this application embodiment has the following advantages: First, by arranging the tilting directions of the flexible pixel bridges within the display panel 10 in the same direction, the movement direction of the flexible pixel bridges can remain consistent when the display panel 10 is in a stretched or contracted state, thereby ensuring that each part within the display panel 10 is subjected to uniform force and improving the tensile stability of the display panel 10. Second, by setting the flexible pixel bridges inside the display panel 10 to a tilted state, the space occupied by the flexible pixel bridges can be reduced, thereby increasing the number of pixel units 310 without changing the internal space of the display panel 10, thus improving the pixel density of the display panel 10.

[0073] In another embodiment of this application, a connection method for some pixel units 310 within the pixel array 300 is also provided. For example, the first pixel unit 310 of the first column of pixel units arranged along the first direction in the pixel array 300 is connected to at least one adjacent pixel unit 310 through a second flexible pixel bridge 202 of the flexible support layer 200; the last pixel unit 310 of the last column of pixel units arranged along the first direction in the pixel array 300 along the second direction is connected to at least one adjacent pixel unit 310 through a second flexible pixel bridge 202 of the flexible support layer 200.

[0074] Optionally, the last pixel unit 310 of the first column of pixel units arranged along the first direction in the pixel array 300 along the second direction is connected to at least one adjacent pixel unit 310 through the second flexible pixel bridge 201 of the flexible support layer 200; the first pixel unit 310 of the last column of pixel units arranged along the first direction in the pixel array 300 is connected to at least one adjacent pixel unit 310 through the second flexible pixel bridge 202 of the flexible support layer 200.

[0075] In this embodiment, the second flexible pixel bridge 202 can be used to connect pixel units 310 in the display panel 10 that are not connected to other pixel units 310 (e.g., pixel units 310 located at the corner of the pixel array 300), so that there is a connection between each pixel unit 310 in the display panel 10, thereby ensuring the stretching and shrinking effect of the display panel 10.

[0076] For example, when the tilt angle of the first flexible pixel bridge 201 is less than 90°, the first pixel unit 310 of the first column of pixel units arranged along the first direction and the last pixel unit 310 of the last column of pixel units arranged along the first direction in the pixel array 300 along the second direction do not have any connection relationship with other pixel units 310. At this time, the second flexible pixel bridge 202 can be used to realize the connection relationship between the pixel unit 310 and other pixel units 310.

[0077] For example, refer to Figure 2 When the pixel units 310 are arranged in a 4*4 pixel array 300 and the first flexible pixel bridge 201 is used to connect the i-th pixel unit 310 of the n-th column along the second direction and the (i-1)-th pixel unit 310 of the (n+1)-th column along the second direction, the pixel units 310 in the pixel array 300 that do not have a connection relationship are specifically the first pixel unit 310 of the first column along the second direction and the fourth pixel unit 310 of the fourth column along the second direction. At this time, they can be connected by the second flexible pixel bridge. 202 Connect at least one of the following pixel units 310: the first pixel unit 310 of the first column pixel unit along the second direction and the second pixel unit 310 of the first column pixel unit along the second direction or the first pixel unit 310 of the second column pixel unit along the second direction; connect at least one of the following pixel units 310: the fourth pixel unit 310 of the fourth column pixel unit along the second direction and the third pixel unit 310 of the fourth column pixel unit along the second direction or the fourth pixel unit 310 of the third column pixel unit along the second direction.

[0078] That is, the coordinates of the pixel units 310 that are not connected are (4, 1) and (1, 4). At this time, the second flexible pixel bridge 202 can be used to connect the pixel unit 310 with coordinate (4, 1) to pixel unit 310 with coordinate (3, 1) or to pixel unit 310 with coordinate (4, 2), and to connect the pixel unit 310 with coordinate (1, 4) to pixel unit 310 with coordinate (2, 4) or to pixel unit 310 with coordinate (1, 3).

[0079] Optionally, when the tilt angle of the first flexible pixel bridge 201 is greater than 90°, the last pixel unit 310 of the first column of pixel units arranged along the first direction and the first pixel unit 310 of the last column of pixel units arranged along the first direction in the pixel array 300 along the second direction do not have any connection relationship with other pixel units 310. At this time, the second flexible pixel bridge 202 can be used to realize the connection relationship between the pixel unit 310 and other pixel units 310.

[0080] For example, refer to Figure 3 When the pixel units 310 are arranged in a 4*4 pixel array 300 and the first flexible pixel bridge 201 is used to connect the i-th pixel unit 310 of the n-th column along the second direction and the (i+1)-th pixel unit 310 of the (n+1)-th column along the second direction, the pixel units 310 in the pixel array 300 that do not have a connection relationship are specifically the 4-th pixel unit 310 of the 1-th column along the second direction and the 1-th pixel unit 310 of the 4-th column along the second direction. At this time, they can be connected by the second flexible pixel bridge. 202 Connect at least one of the following pixel units 310: the fourth pixel unit 310 of the first column pixel unit along the second direction, the third pixel unit 310 of the first column pixel unit along the second direction, or the fourth pixel unit 310 of the second column pixel unit along the second direction; connect at least one of the following pixel units 310: the first pixel unit 310 of the fourth column pixel unit along the second direction, the second pixel unit 310 of the fourth column pixel unit along the second direction, or the first pixel unit 310 of the third column pixel unit along the second direction.

[0081] That is, the coordinates of the pixel units 310 that are not connected are (1,1) and (4,4) respectively. At this time, the second flexible pixel bridge 202 can be used to connect the pixel unit 310 with coordinates (1,1) to pixel unit 310 with coordinates (1,2) or to pixel unit 310 with coordinates (2,1), and connect the pixel unit 310 with coordinates (4,4) to pixel unit 310 with coordinates (4,3) or to pixel unit 310 with coordinates (3,4).

[0082] For example, the second flexible pixel bridge 202 can be disposed on the opposite edges of two connected pixel units.

[0083] For example, the second flexible pixel bridge 202 may have an angle with the first direction.

[0084] Specifically, refer to Figure 2 When the tilt angle of the first flexible pixel bridge 201 is less than 90°, the tilt angle of the second flexible pixel bridge 202 with respect to the first direction (i.e., the horizontal direction) is also less than 90°.

[0085] Optionally, refer to Figure 3 When the tilt angle of the first flexible pixel bridge 201 is greater than 90°, the tilt angle of the second flexible pixel bridge 202 with respect to the first direction (i.e., the horizontal direction) is also greater than 90°.

[0086] In another embodiment of this application, a specific structural distribution of the first flexible pixel bridge 201 is also provided. For example, the first flexible pixel bridge 201 includes a first flexible connecting portion 2011 and a second flexible connecting portion 2012, which are arranged in parallel.

[0087] For example, the two ends of the first flexible connection portion 2011 and the second flexible connection portion 2012 can be connected to the corners of two pixel units 310 respectively. When the pixel electrode 404 of the pixel unit 310 is disposed at the corner of the pixel unit 310 (that is, the pixel electrode 404 is disposed at the outer corner of the pixel driving substrate 312), the flexible connection portion can be used to connect the pixel electrodes 404 of different pixel units 310.

[0088] For example, Figure 5 This is one of the partial top views of the pixel array 300 provided in the embodiments of this application, such as... Figure 5 As shown, the first flexible pixel bridge 201 between the second pixel unit 310 of the first column pixel unit along the second direction and the first pixel unit 310 of the second column pixel unit along the second direction may include a first flexible connecting portion 2011 and a second flexible connecting portion 2012 arranged in parallel, wherein the two ends of the first flexible connecting portion 2011 and the second flexible connecting portion 2012 are respectively disposed at the corner positions opposite to the two pixel units 310.

[0089] Therefore, when the pixel array 300 is grouped into sets of four pixel units 310, each set may include, for example: Figure 5 The five flexible connection parts are shown.

[0090] In this embodiment of the application, by setting the two ends of the above-mentioned flexible connection at the corner of the pixel unit 310, the distance between adjacent pixel units 310 can be reduced, thereby making the pixel units 310 inside the display panel 10 more compact, so as to improve the pixel density of the display panel 10.

[0091] In another embodiment of this application, another distribution of flexible pixel bridges within the pixel array 300 is provided. For example, each pixel unit 310 is connected to its adjacent pixel unit 310 along the first direction via a third flexible pixel bridge 203 of the flexible support layer 200.

[0092] For example, the third flexible pixel bridge 203 may have an angle with the first direction.

[0093] Specifically, when the tilt angle of the first flexible pixel bridge 201 is less than 90°, the tilt angle of the third flexible pixel bridge 203 with respect to the first direction (i.e., the horizontal direction) is also less than 90°.

[0094] Optionally, when the tilt angle of the first flexible pixel bridge 201 is greater than 90°, the tilt angle of the third flexible pixel bridge 203 with respect to the first direction (i.e., the horizontal direction) is also greater than 90°.

[0095] It should be noted that the reason why the tilt angles of the second flexible pixel bridge 202 and the second flexible pixel bridge 203 are both set to the same angle range as the tilt angle of the first flexible pixel bridge 201 is so that when the display panel 10 is stretched or contracted, the flexible pixel bridges in the display panel 10 have the same rotation direction (for example, when the display panel 10 is stretched and the tilt angle of the flexible pixel bridges is greater than 90°, each flexible pixel bridge in the display panel 10 moves towards the straight line of the first direction in a counterclockwise direction), thereby further ensuring the stretching stability of the display panel 10.

[0096] For example, Figure 6 This is a second partial top view of the pixel array 300 provided in the embodiments of this application, as shown in the figure. Figure 6 As shown, the first pixel unit 310 of the first column of pixel units along the second direction and the first pixel unit 310 of the second column of pixel units along the second direction can be connected by the third flexible pixel bridge 203; the second pixel unit 310 of the first column of pixel units along the second direction and the second pixel unit 310 of the second column of pixel units along the second direction can be connected by the third flexible pixel bridge 203.

[0097] Therefore, when the pixel array 300 is grouped into sets of four pixel units 310, each set may include, for example: Figure 6 The three flexible pixel bridges are shown.

[0098] In another embodiment of this application, a specific configuration of the flexible pixel bridge is also provided. For example, the first flexible pixel bridge 201 includes a first flexible portion 701, a second flexible portion 702, and a signal transmission portion 703; the first flexible portion 701 is disposed at one end of the signal transmission portion 703 near the first pixel unit, and the second flexible portion 702 is disposed at one end of the signal transmission portion 703 near the second pixel unit. The first flexible portion 701 and the first pixel unit 310 connected to the first flexible pixel bridge 201 are disposed opposite each other in the orthographic projection direction, and the second flexible portion 702 and the second pixel unit connected to the first flexible pixel bridge 201 are disposed opposite each other in the orthographic projection direction.

[0099] In this embodiment, a flexible pixel bridge can be constructed using both flexible and conductive materials to achieve signal transmission between pixel units 310 while simultaneously enabling the stretchability of the display panel 10.

[0100] For example, the first flexible portion 701 and the second flexible portion 702 can be respectively disposed opposite to the pixel substrate 311 of each pixel unit 310 connected to the first flexible pixel bridge 201, that is, the orthographic projection patterns of the first flexible portion 701 and the second flexible portion 702 are included in the orthographic projection patterns of the pixel substrate 311 of each pixel unit 310 connected to them.

[0101] Based on this, when the two ends of the first flexible pixel bridge 201 are respectively disposed on the opposite edges of the two pixel units 310, it can be understood that the first flexible part 701 and the second flexible part 702 at the two ends of the first flexible pixel bridge 201 are respectively disposed at a preset position on the flexible support layer 200 on one side of the pixel substrate 311 (for example, a position close to the edge of the pixel substrate 311), and the first flexible part 701 and the second flexible part 702 are respectively connected by the signal transmission part 703 to form a viewing effect in the orthographic projection direction where the two ends of the first flexible pixel bridge 201 are disposed on the opposite edges of the two pixel units 310.

[0102] For example, the first flexible portion 701 and the second flexible portion 702 can be areas where the flexible support layer 200 and the pixel substrate 311 are disposed opposite each other; wherein, the signal transmission portion 703 between the first flexible portion 701 and the second flexible portion 702 can be a straight line.

[0103] For example, along the orthographic projection direction of the display panel 10, the thickness of the signal transmission section 703 can be less than or equal to the thickness of the flexible support layer 200.

[0104] For example, Figure 7 This is the third cross-sectional schematic diagram of the display panel 10 provided in the embodiments of this application, as shown below. Figure 7 As shown, the first flexible part 701 is disposed opposite to the first pixel unit 310, the second flexible part 702 is disposed opposite to the second pixel unit 310, and the signal transmission part 703 exists between the first flexible part 701 and the second flexible part 702.

[0105] Correspondingly, Figure 8 This is the third top view schematic diagram of the display panel 10 provided in the embodiments of this application, as shown below. Figure 8As shown, the first pixel unit 310 can be the i-th pixel unit 310 of the n-th column of the pixel array 300 along the second direction, and the second pixel unit 310 can be the (i-1)-th pixel unit 310 of the (n+1)-th column of the pixel array 300 along the second direction. At this time, the first flexible part 701 and the second flexible part 702 are respectively located within the orthographic projection pattern of the two pixel units 310, and the two ends of the signal transmission part 703 can be connected to the corners of the two pixel units 310 respectively. For example, the material of the signal transmission part 703 can be indium tin oxide.

[0106] It should be noted that the second flexible pixel bridge 202 and the third flexible pixel bridge 203 have the same specific structure as the first flexible pixel bridge 201, and will not be described in detail here.

[0107] In another embodiment of this application, a method for manufacturing the display panel 10 is also provided. Figure 9 This is a schematic flowchart of the manufacturing method of the display panel 10 provided in the embodiments of this application, as shown below. Figure 9 As shown, the method includes the following steps:

[0108] Step 901: A first flexible pixel bridge 201 is prepared at a preset position on the flexible substrate 100.

[0109] For example, the signal transmission section 703 in the first flexible pixel bridge 201 can be prepared on one side of the flexible substrate 100 based on the preset arrangement of the pixel units 310 in the display panel 10 and the connection relationship between each pixel unit 310.

[0110] For example, after the signal transmission section 703 is fabricated, a first flexible section 701 and a second flexible section 702 can be fabricated at both ends of the signal transmission section 703 to form a first flexible pixel bridge 201. The orthographic projection shapes of the first flexible section 701 and the second flexible section 702 can be consistent with the preset orthographic projection shape of the pixel substrate 311 of the pixel unit 310.

[0111] Step 902: A flexible support layer 200 is prepared on the side of the flexible substrate 100 where the first flexible pixel bridge 201 is provided.

[0112] For example, a flexible support layer 200 can be prepared on the side of the flexible substrate 100 where the first flexible pixel bridge 201 is provided, that is, the first flexible pixel bridge 201 is disposed in the flexible support layer 200.

[0113] Step 903: A pixel array 300 is fabricated on the side of the flexible support layer 200 away from the flexible substrate 100. The pixel array 300 includes multiple columns of pixel units arranged along a first direction. The first flexible pixel bridge 201 is used to connect the i-th pixel unit 310 along the second direction in the n-th column of the pixel array 300 with the (i-1)-th pixel unit 310 along the second direction in the (n+1)-th column of the pixel array 300; or it is used to connect the i-th pixel unit 310 along the second direction in the n-th column of the pixel array 300 with the (i+1)-th pixel unit 310 along the second direction in the (n+1)-th column of the pixel array 300.

[0114] For example, based on the preset arrangement position of the pixel units 310, a pixel substrate 311 can be first prepared on the side of the flexible support layer 200 away from the flexible substrate 100, then a pixel driving substrate 312 can be prepared on the side of the pixel substrate 311 away from the flexible support layer 200, and finally a pixel layer 313 can be prepared on the side of the pixel driving substrate 312 away from the pixel substrate 311, thereby completing the preparation of the pixel units 310 to form a pixel array 300.

[0115] The method for manufacturing the display panel 20 provided in this application embodiment, on the one hand, by arranging the tilting direction of the flexible pixel bridges within the display panel 10 in the same direction, can ensure that the movement direction of the flexible pixel bridges remains consistent when the display panel 10 is in a stretched or contracted state, thereby ensuring that each part within the display panel 10 is subjected to uniform force and improving the tensile stability of the display panel 10; on the other hand, by setting the flexible pixel bridges inside the display panel 10 to a tilted state, the space occupied by the flexible pixel bridges can be reduced, thereby increasing the number of pixel units 310 without changing the internal space of the display panel 10, thereby improving the pixel density of the display panel 10; in addition, the use of semiconductor technology to manufacture the flexible pixel bridges can achieve control over the size / thickness uniformity of the flexible pixel bridges, thereby improving the uniformity of the pixel bridge array 300 structure and ensuring the tensile stability of the display panel 10.

[0116] In another embodiment of this application, a specific representation of the pixel array 300 when the display panel 10 is stretched is also provided.

[0117] For example, when the flexible pixel bridge connecting the pixel units 310 within the pixel array 300 is as follows Figure 5 In the arrangement shown, the spacing between adjacent pixel units 310 along the second direction is a1, and the spacing along the first direction is b1. When the display panel 10 is stretched along the first direction, the pixel array 300 and the flexible pixel bridge within the display panel 10... Figure 10 As shown.

[0118] Specifically, such as Figure 10As shown, the spacing between adjacent pixel units 310 in the display panel 10 after stretching along the first direction is a2 along the second direction and b2 along the first direction. The spacing b2 between adjacent pixel units 310 along the first direction is greater than the original spacing b1 due to the stretching effect in the first direction, while the spacing a2 between adjacent pixel units 310 along the second direction is smaller than the original spacing a1 due to the Poisson effect.

[0119] Optionally, when the flexible pixel bridge connecting the pixel units 310 within the pixel array 300 is as follows: Figure 6 In the arrangement shown, the spacing between adjacent pixel units 310 along the second direction is a3, and the spacing along the first direction is b3. When the display panel 10 is stretched along the first direction, the pixel array 300 and the flexible pixel bridge within the display panel 10... Figure 11 As shown.

[0120] Specifically, such as Figure 11 As shown, the spacing between adjacent pixel units 310 in the display panel 10 after stretching along the first direction is a4 along the second direction and b4 along the first direction. The spacing b4 between adjacent pixel units 310 along the first direction is greater than the original spacing b3 due to the stretching effect in the first direction, while the spacing a4 between adjacent pixel units 310 along the second direction is smaller than the original spacing a3 due to the Poisson effect.

[0121] In this embodiment, the stretching effect of the display panel 10 in a specific direction can be achieved by different arrangement methods of the flexible pixel bridges within the display panel 10.

[0122] In another embodiment of this application, a display device 20 is also described, which may include the display panel 10 in the foregoing embodiments.

[0123] In one possible implementation, the display device 20 can be used to output image information. For example, the display device 20 can display text images by controlling semiconductor light-emitting diodes; for example, the display device 20 can be an OLED display device or an ILED display device.

[0124] For example, the display device 20 may employ a top-emitting light-emitting method.

[0125] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the foregoing disclosed concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A display panel, characterized by, include: A flexible substrate, a flexible support layer disposed on one side of the flexible substrate, and a pixel array disposed on the side of the flexible support layer away from the flexible substrate, wherein the pixel array includes multiple columns of pixel units arranged along a first direction; The i-th pixel unit in the nth column along the second direction and the (i-1)-th pixel unit in the (n+1)-th column along the second direction are connected by a first flexible pixel bridge in the flexible support layer. The first flexible pixel bridge is disposed on the opposite edges of the i-th pixel unit and the (i-1)-th pixel unit; or... The i-th pixel unit in the n-th column along the second direction and the i+1-th pixel unit in the (n+1)-th column along the second direction are connected by a first flexible pixel bridge in the flexible support layer. The first flexible pixel bridge is disposed on the opposite edges of the i-th pixel unit and the (i+1)-th pixel unit. The extension direction of each of the first flexible pixel bridges in the pixel array is at an angle to the first direction, and the extension directions are the same. The pixel unit includes a pixel substrate, a pixel driving substrate disposed on one side of the pixel substrate, and a pixel layer disposed on the side of the pixel driving substrate away from the pixel substrate; The first flexible pixel bridge includes a first flexible portion and a second flexible portion, wherein the first flexible portion and the second flexible portion are respectively disposed opposite to the pixel substrates of each pixel unit connected to the first flexible pixel bridge.

2. The display panel of claim 1, wherein, The first pixel unit of the first column of pixel units arranged along the first direction in the pixel array is connected to at least one adjacent pixel unit through a second flexible pixel bridge of the flexible support layer. The last pixel unit in the last column of pixel units arranged along the first direction in the pixel array, along the second direction, is connected to at least one adjacent pixel unit through a second flexible pixel bridge of the flexible support layer.

3. The display panel of claim 1, wherein, The last pixel unit of the first column of pixel units arranged along the first direction in the pixel array along the second direction is connected to at least one adjacent pixel unit through a second flexible pixel bridge of the flexible support layer. The first pixel unit of the last column of pixel units arranged along the first direction in the pixel array is connected to at least one adjacent pixel unit through a second flexible pixel bridge of the flexible support layer.

4. The display panel of claim 2 or 3, wherein, The second flexible pixel bridge has an angle with the first direction.

5. The display panel of claim 1, wherein, The first flexible pixel bridge includes a first flexible connecting portion and a second flexible connecting portion, which are arranged in parallel.

6. The display panel according to claim 1, characterized in that, Each pixel unit is connected to its adjacent pixel unit along the first direction via a third flexible pixel bridge in the flexible support layer.

7. The display panel according to claim 6, characterized in that, The third flexible pixel bridge has an angle with the first direction.

8. The display panel of claim 1, wherein, The first flexible pixel bridge includes a first flexible portion, a second flexible portion, and a signal transmission portion; the first flexible portion is disposed at one end of the signal transmission portion near the first pixel unit, and the second flexible portion is disposed at one end of the signal transmission portion near the second pixel unit. The first flexible portion and the first pixel unit connected to the first flexible pixel bridge are disposed opposite each other in the orthographic projection direction, and the second flexible portion and the second pixel unit connected to the first flexible pixel bridge are disposed opposite each other in the orthographic projection direction.

9. The display panel of claim 8, wherein, The signal transmission section is connected to the pixel electrodes of the first pixel unit and the second pixel unit, respectively.

10. The display panel according to claim 8, characterized in that, The material of the signal transmission part is indium tin oxide.

11. A method for manufacturing a display panel, characterized by, The method includes: A first flexible pixel bridge is fabricated at a predetermined position on a flexible substrate; A flexible support layer is prepared on the side of the flexible substrate where the first flexible pixel bridge is disposed; A pixel array is fabricated on the side of the flexible support layer away from the flexible substrate. The pixel array includes multiple columns of pixel units arranged along a first direction. The first flexible pixel bridge connects the i-th pixel unit in the n-th column of the pixel array along the second direction to the (i-1)-th pixel unit in the (n+1)-th column of the pixel array along the second direction; or it connects the i-th pixel unit in the n-th column of the pixel array along the second direction to the (i+1)-th pixel unit in the (n+1)-th column of the pixel array along the second direction. The extension direction of each of the first flexible pixel bridges in the pixel array is at an angle to the first direction, and the extension directions are the same. The pixel unit includes a pixel substrate, a pixel driving substrate disposed on one side of the pixel substrate, and a pixel layer disposed on the side of the pixel driving substrate away from the pixel substrate; The first flexible pixel bridge includes a first flexible portion and a second flexible portion, wherein the first flexible portion and the second flexible portion are respectively disposed opposite to the pixel substrates of each pixel unit connected to the first flexible pixel bridge.

12. A display device, characterized in that, The display device includes a display panel as described in any one of claims 1-10.

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