Flexible display panel and flexible display apparatus

Abstract

Provided in the present invention are a flexible display panel and a flexible display apparatus. The flexible display panel comprises: a flexible substrate; an electrically conductive layer, which is located on one side of the flexible substrate and has a plurality of openings; a gate layer, which is located on the side of the electrically conductive layer facing away from the flexible substrate and is provided with a plurality of driving gate metals arranged in an array, wherein transistors corresponding to the driving gate metals are transistors directly driving light-emitting sub-pixels to emit light; and a data signal layer, which is located on the side of the gate layer facing away from the electrically conductive layer and is provided with a plurality of data signal lines, wherein first projections of the openings based on the flexible substrate at least partially overlap second projections of the driving gate metals and / or the data signal lines based on the flexible substrate. By means of the provision of the openings in the electrically conductive layer at positions corresponding to the data signal lines and / or the driving gate metals, the present invention can reduce the parasitic capacitance between the electrically conductive layer and the data signal lines and / or the driving gate metals, thereby reducing a crosstalk phenomenon.

Description

Flexible display panel and flexible display device Technical Field

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

[0002] With the advancement of technology, flexible display technology has become an important branch in the field of display technology. Flexible display panels have the advantages of being light, portable and having excellent picture quality, and have been increasingly widely used.

[0003] In existing technologies, the flexible substrate of a flexible display panel is prone to polarization. This polarized charge can cause image retention, impacting the display quality. Taking organic light-emitting diodes (OLEDs) as an example, when a flexible display panel is operating, it may remain on a certain image for an extended period. In this case, the flexible substrate of the flexible display panel is prone to polarization, generating polarized charge. Subsequently, when the flexible display panel's image changes, the polarized charge on the flexible substrate can cause image retention on the flexible display panel, impacting the display quality and user experience.

[0004] Chinese patent CN110416253B discloses a flexible display panel. By providing a conductive layer between a flexible substrate and an organic light-emitting structure, the conductive layer has good conductivity, which can not only reduce the polarization effect of the organic light-emitting structure on the flexible substrate, but also shield the effect of the polarization charge on the flexible substrate on the organic light-emitting structure, thereby preventing the charge distribution on the organic light-emitting structure from being affected by the polarization charge on the flexible substrate, thereby avoiding the occurrence of image retention on the flexible display panel.

[0005] However, the newly added conductive layer will form parasitic capacitance with the data signal line in the upper pixel circuit and the gate of the driving transistor in the pixel circuit that drives the sub-pixel to emit light. Therefore, when the electrical signal of the data signal line jumps, the coupling will affect the gate potential of the driving transistor in the vertical direction, thereby causing crosstalk, affecting the display effect and user experience of the flexible display panel.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to ordinary technicians in this field.

[0007] Summary of the Invention

[0008] In view of this, the present invention provides a flexible display panel and a flexible display device, which can reduce the parasitic capacitance between the conductive layer and the data signal lines and / or the driving gate metal, thereby reducing the crosstalk phenomenon.

[0009] One aspect of the present invention provides a flexible display panel, comprising:

[0010] Flexible substrates;

[0011] a conductive layer, located on one side of the flexible substrate, and having a plurality of openings;

[0012] a gate layer, located on a side of the conductive layer away from the flexible substrate, comprising a plurality of drive gate metals arranged in an array, wherein transistors corresponding to the drive gate metals are transistors that directly drive light-emitting sub-pixels to emit light; and

[0013] a data signal layer, located on a side of the gate layer away from the conductive layer, and having a plurality of data signal lines;

[0014] The opening is based on a first projection of the flexible substrate and at least partially overlaps with a second projection of the driving gate metal and / or the data signal line based on the flexible substrate.

[0015] In some embodiments, the ratio of the parasitic capacitance of the conductive layer and the driving gate metal to the storage capacitance is less than or equal to 5‰; and / or

[0016] The ratio of the parasitic capacitance between the conductive layer and the data signal line to the storage capacitance is less than or equal to 5‰.

[0017] In some embodiments, the first projection completely coincides with the second projection.

[0018] In some embodiments, the opening includes a first opening corresponding to the driving gate metal and / or a second opening corresponding to the data signal line;

[0019] Each of the light-emitting sub-pixels corresponds to one of the first openings and / or one of the second openings;

[0020] In all the second openings corresponding to the same data signal line, there is a gap with the same width between every two adjacent second openings.

[0021] In some embodiments, the second projection is only a projection of the driving gate metal based on the flexible substrate.

[0022] In some embodiments, the second projection is only a projection of the data signal line based on the flexible substrate.

[0023] In some embodiments, the second projection is a projection of the driving gate metal and the data signal line based on the flexible substrate.

[0024] In some embodiments, the flexible display panel further includes a first power signal line, and the conductive layer is grounded or electrically connected to the first power signal line.

[0025] In some embodiments, the flexible display panel further includes: an organic light-emitting structure located on a side of the data signal layer away from the gate layer;

[0026] The surface resistivity of the conductive layer is less than or equal to 10 11 Ω;

[0027] The conductive layer is made of amorphous silicon, molybdenum, aluminum-titanium alloy, copper or nanosilver;

[0028] The thickness of the conductive layer is 1 nm to 1 μm;

[0029] Along a direction perpendicular to the flexible substrate, a distance between the conductive layer and the flexible substrate is less than or equal to 100 μm.

[0030] Another aspect of the present invention provides a flexible display device including the flexible display panel.

[0031] Compared with the prior art, the present invention has at least the following advantages:

[0032] The flexible display panel and the flexible display device of the present invention: (1) by providing openings at corresponding positions of the conductive layer and the data signal line and / or the driving gate metal, the parasitic capacitance between the conductive layer and the data signal line and / or the driving gate metal can be reduced, thereby reducing the crosstalk phenomenon and improving the display effect and user experience of the flexible display panel; (2) by providing a conductive layer between the flexible substrate and the organic light-emitting structure, the conductive layer has good conductivity, which can not only weaken the polarization effect of the organic light-emitting structure on the flexible substrate, but also shield the effect of the polarization charge on the flexible substrate on the organic light-emitting structure, thereby preventing the charge distribution on the organic light-emitting structure from being affected by the polarization charge on the flexible substrate, thereby avoiding the occurrence of image retention on the flexible display panel and improving the display effect and user experience of the flexible display panel.

[0033] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings are incorporated into and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and it is clear that those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0035] FIG1 is a schematic structural diagram of a flexible display panel according to a first embodiment of the present invention;

[0036] FIG2 is a schematic structural diagram of a conductive layer according to a first embodiment of the present invention;

[0037] FIG3 is a schematic structural diagram of a flexible display panel according to second and third embodiments of the present invention;

[0038] FIG4 is a schematic structural diagram of a conductive layer according to a second embodiment of the present invention;

[0039] FIG5 is a schematic structural diagram of a conductive layer according to a third embodiment of the present invention;

[0040] FIG6 is a schematic structural diagram of a flexible display panel according to fourth and fifth embodiments of the present invention;

[0041] FIG7 is a schematic structural diagram of a conductive layer according to a fourth embodiment of the present invention;

[0042] FIG8 is a schematic structural diagram of a conductive layer according to a fifth embodiment of the present invention;

[0043] FIG9 shows a schematic structural diagram of a flexible display device provided by an embodiment of the present invention.

[0044] Reference numerals: 1 flexible substrate 2 conductive layer 21 opening 211 first opening 212 second opening 3 gate layer 31 driving gate metal 4 data signal layer 41 data signal line 5 organic light emitting structure 6 flexible display device DETAILED DESCRIPTION

[0045] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be comprehensive and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Identical reference numerals in the figures represent identical or similar structures, and thus a repeated description thereof will be omitted.

[0046] The terms "first," "second," and similar terms used in the specific description do not denote any order, quantity, or importance, but are simply used to distinguish different components. Furthermore, in the description of the present invention, the terms "upper," "lower," and similar terms indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. These terms are used solely for ease of description and do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0047] It should be noted that, in the absence of conflict, the embodiments of the present invention and features in different embodiments may be combined with each other.

[0048] Through careful and in-depth research, the inventors of this case have provided a solution to the problems existing in the prior art. The present invention provides a flexible display panel and a flexible display device, wherein the flexible display panel includes: a flexible substrate; a conductive layer, located on one side of the flexible substrate, having a plurality of openings; a gate layer, located on the side of the conductive layer away from the flexible substrate, having a plurality of drive gate metals arranged in an array, wherein the transistors corresponding to the drive gate metals are transistors that directly drive the light-emitting sub-pixels to emit light; a data signal layer, located on the side of the gate layer away from the conductive layer, having a plurality of data signal lines; wherein the openings are based on a first projection of the flexible substrate and at least partially overlap with a second projection of the drive gate metals and / or the data signal lines based on the flexible substrate. By providing openings at corresponding positions of the conductive layer and the data signal lines and / or the drive gate metals, the present invention can reduce the parasitic capacitance between the conductive layer and the data signal lines and / or the drive gate metals, thereby reducing crosstalk.

[0049] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0050] [First embodiment]

[0051] FIG1 is a schematic structural diagram of a flexible display panel according to a first embodiment of the present invention; FIG2 is a schematic structural diagram of a conductive layer according to the first embodiment of the present invention.

[0052] 1 and 2 , in this embodiment, the flexible display panel includes: a flexible substrate 1 , a conductive layer 2 , a gate layer 3 , and a data signal layer 4 , which are arranged in sequence.

[0053] In this embodiment, the conductive layer 2 has a plurality of openings 21 arranged in an array.

[0054] In this embodiment, the gate layer 3 includes a plurality of drive gate metals 31 arranged in an array. The flexible display panel includes a plurality of light-emitting sub-pixels arranged in an array. Each light-emitting sub-pixel is driven to emit light by a pixel drive circuit. Each pixel drive circuit includes a plurality of transistors, of which the transistor that directly drives the organic light-emitting diode to cause the light-emitting sub-pixel to emit light is the drive transistor. The transistor corresponding to the drive gate metal 31 is the aforementioned drive transistor. Since the light-emitting sub-pixels are arranged in an array, the drive transistors and the drive gate metal 31 are also arranged in a corresponding array.

[0055] In this embodiment, the data signal layer 4 has a plurality of data signal lines 41. Each data signal line 41 controls the light emission of a column of light-emitting sub-pixels.

[0056] In this embodiment, the openings 21 of the conductive layer 2 only include first openings 211 corresponding to the drive gate metal 31. Each light-emitting sub-pixel corresponds to a first opening 211. The openings 21 form a first projection on the flexible substrate 1, while the drive gate metal 31 forms a second projection on the flexible substrate 1. The first projection completely overlaps with the second projection. In other words, each first opening 211 in the conductive layer 2 and the corresponding drive gate metal 31 are located at the same position on the flexible substrate 1 and have the same shape and size.

[0057] In this embodiment, the ratio of the parasitic capacitance between the conductive layer 2 and the drive gate metal 31 to the storage capacitance is less than or equal to 5‰. By providing the first opening 211 at corresponding positions of the conductive layer 2 and the drive gate metal 31, the parasitic capacitance between the conductive layer 2 and the drive gate metal 31 can be reduced, thereby reducing crosstalk and improving the display quality and user experience of the flexible display panel.

[0058] In other embodiments, when the openings 21 of the conductive layer 2 only include the first openings 211 corresponding to the drive gate metal 31, the first projection and the second projection may also partially overlap. That is, the positions of each first opening 211 of the conductive layer 2 and the corresponding drive gate metal 31 on the flexible substrate 1 overlap but are not completely consistent, and the shapes and sizes of the two may also be different, as long as there is overlap on the flexible substrate 1. For example, the opening area of ​​the first opening 211 is larger than that of the drive gate metal 31, or smaller than that of the drive gate metal 31; the shape of the first opening 211 is circular, and the shape of the drive gate metal 31 is rectangular, etc., but the present invention is not limited to this. In addition, in this case, the ratio of the parasitic capacitance of the conductive layer 2 and the drive gate metal 31 to the storage capacitance can also be less than or equal to 5‰.

[0059] In this embodiment, the flexible display panel further includes a first power signal line, and the conductive layer 2 is grounded or electrically connected to the first power signal line to release the charge accumulated in the conductive layer 2 and protect the flexible display panel. The first power signal line can provide a positive power voltage.

[0060] In this embodiment, the flexible display panel further includes an organic light-emitting structure 5 located on the side of the data signal layer 4 facing away from the gate layer 3. That is, the conductive layer 2 is located between the flexible substrate 1 and the organic light-emitting structure 5. By providing the conductive layer 2 between the flexible substrate 1 and the organic light-emitting structure 5, due to its excellent electrical conductivity, the conductive layer 2 can both reduce the polarization effect of the organic light-emitting structure 5 on the flexible substrate 1 and shield the polarized charges on the flexible substrate 1 from affecting the organic light-emitting structure 5. This prevents the charge distribution on the organic light-emitting structure 5 from being affected by the polarized charges on the flexible substrate 1, thereby preventing image sticking on the flexible display panel and improving the display quality and user experience of the flexible display panel.

[0061] In this embodiment, the surface resistivity of the conductive layer 2 is less than or equal to 10 11 Ω, but not limited thereto. It is understood that conductors have an electrostatic shielding effect on electric fields, and the smaller the surface resistivity of the conductive layer 2, the better the electrostatic shielding effect. Therefore, the smaller the surface resistivity of the conductive layer 2, the stronger its ability to shield the charge interaction between the organic light-emitting structure 5 and the flexible substrate 1.

[0062] In this embodiment, the conductive layer 2 is made of, but not limited to, amorphous silicon, molybdenum, aluminum-titanium alloy, copper, or nanosilver. Specifically, the microstructure of amorphous silicon is often distributed in a grid-like pattern, and it contains numerous defects, which gives it a certain degree of conductivity. Furthermore, molybdenum, aluminum-titanium alloy, copper, and nanosilver are all more conductive than amorphous silicon. Therefore, a conductive layer 2 made of molybdenum, aluminum-titanium alloy, copper, or nanosilver has a lower surface resistivity and is more effective in eliminating image sticking on flexible display panels.

[0063] In this embodiment, the thickness of the conductive layer 2 is 1 nm to 1 μm, but is not limited thereto. It is understood that, due to the excellent electrical conductivity of the conductive layer 2, a conductive layer 2 having a thickness of 1 nm or greater can provide a good shielding effect, eliminating image retention on the flexible display panel. If the thickness of the conductive layer 2 is too thin, its electrostatic shielding capability is affected. If the thickness of the conductive layer 2 is too thick, the manufacturing process becomes more difficult and may affect the bending performance of the flexible display panel.

[0064] In this embodiment, the distance between the conductive layer 2 and the flexible substrate 1 along a direction perpendicular to the flexible substrate 1 is less than or equal to 100 μm, but is not limited thereto. The closer the conductive material is to the charge source, the stronger the conductor's electrostatic shielding capability. To improve the electrostatic shielding capability of the conductive layer 2 against polarized charges on the flexible substrate 1, the smaller the distance between the conductive layer 2 and the flexible substrate 1, the stronger the electrostatic shielding capability of the conductive layer 2, thereby better eliminating image retention.

[0065] In this embodiment, the conductive layer 2 can be prepared by methods such as PVD (Physical Vapor Deposition), CVD (Chemical Vapor Deposition), or Coating, but is not limited thereto.

[0066] In this embodiment, the flexible substrate 1 is made of PI or PET. To meet the technical requirements for the bendability of flexible display panels, the flexible substrate 1 is typically made of organic materials. PI, as a special organic material, has a low thermal expansion coefficient, excellent mechanical properties, and high bendability. PET, also an organic material, exhibits excellent physical and mechanical properties over a wide temperature range, including good fatigue resistance and friction resistance.

[0067] [Second embodiment]

[0068] FIG3 is a schematic structural diagram of flexible display panels according to the second and third embodiments of the present invention; FIG4 is a schematic structural diagram of a conductive layer according to the second embodiment of the present invention.

[0069] Referring to Figures 3 and 4 , in this embodiment, unlike the first embodiment, the openings 21 of the conductive layer 2 only include second openings 212 corresponding to the data signal lines 41. Each column of light-emitting sub-pixels corresponds to one second opening 212. The data signal lines 41 form a second projection on the flexible substrate 1. The first projection completely overlaps with the second projection. In other words, each data signal line 41 corresponds to only one second opening 212. Furthermore, each second opening 212 in the conductive layer 2 and the corresponding data signal line 41 are located at the same position on the flexible substrate 1 and have the same shape and size.

[0070] In this embodiment, the ratio of the parasitic capacitance between the conductive layer 2 and the data signal line 41 to the storage capacitance is less than or equal to 5‰. By providing the second opening 212 at the corresponding positions of the conductive layer 2 and the data signal line 41, the parasitic capacitance between the conductive layer 2 and the data signal line 41 can be reduced, thereby reducing crosstalk and improving the display quality and user experience of the flexible display panel.

[0071] In other embodiments, when the openings 21 of the conductive layer 2 only include second openings 212 corresponding to the data signal lines 41, the first projection and the second projection may partially overlap. That is, the positions of each second opening 212 of the conductive layer 2 and the corresponding data signal line 41 on the flexible substrate 1 overlap but are not completely identical. Furthermore, the shapes and sizes of the second openings 212 may differ, as long as they overlap on the flexible substrate 1. For example, the opening area of ​​the second opening 212 may be larger or smaller than that of the data signal line 41; the shape of the second opening 212 may be elliptical, while that of the data signal line 41 may be rectangular, etc., but the present invention is not limited thereto. Furthermore, in this case, the ratio of the parasitic capacitance to the storage capacitance of the conductive layer 2 and the data signal line 41 may be less than or equal to 5‰.

[0072] For other aspects of this embodiment, reference may be made to the first embodiment, and repeated details will not be repeated.

[0073] [Third embodiment]

[0074] FIG5 is a schematic structural diagram of a conductive layer according to a third embodiment of the present invention.

[0075] 3 and 5 , in this embodiment, similar to the second embodiment, the openings 21 of the conductive layer 2 only include second openings 212 corresponding to the data signal lines 41; different from the second embodiment, each light-emitting sub-pixel corresponds to a second opening 212, and all second openings 212 corresponding to all light-emitting sub-pixels in each column jointly correspond to one data signal line 41. Moreover, the width of each data signal line 41 is the same as that of the second opening 212, that is, the first projection is included in the second projection. In addition, among all second openings 212 corresponding to the same data signal line 41, there is a gap of the same width between every two adjacent second openings 212. In other embodiments, the gap of the same width between every two adjacent second openings 212 may also be different, as long as it can achieve the purpose of reducing parasitic capacitance and thus reducing crosstalk.

[0076] In other embodiments, when the openings 21 of the conductive layer 2 include only second openings 212 corresponding to the data signal lines 41, each second opening 212 of the conductive layer 2 and the corresponding data signal line 41 may overlap on the flexible substrate 1 but not be contained. Furthermore, the widths and shapes of the second openings 212 and the corresponding data signal line 41 may differ, as long as they overlap on the flexible substrate 1. For example, the width of the second opening 212 may be larger or smaller than the data signal line 41; the shape of the second opening 212 may be elliptical, while the shape of the data signal line 41 may be rectangular, etc., but the present invention is not limited thereto. Furthermore, in this case, the ratio of the parasitic capacitance to the storage capacitance between the conductive layer 2 and the data signal line 41 may be less than or equal to 5‰.

[0077] For other aspects of this embodiment, reference may be made to the second embodiment, and repeated details will not be repeated.

[0078] [Fourth embodiment]

[0079] FIG6 is a schematic structural diagram of flexible display panels according to the fourth and fifth embodiments of the present invention; FIG7 is a schematic structural diagram of a conductive layer according to the fourth embodiment of the present invention.

[0080] Referring to Figures 6 and 7, in this embodiment, the openings 21 include both first openings 211 corresponding to the drive gate metal 31 and second openings 212 corresponding to the data signal lines 41. Each light-emitting sub-pixel corresponds to a first opening 211, and each column of light-emitting sub-pixels corresponds to a second opening 212. The first openings 211 and the second openings 212 together form a first projection on the flexible substrate 1, while the drive gate metal 31 and the data signal lines 41 together form a second projection on the flexible substrate 1. The first projection and the second projection completely overlap. That is, each drive gate metal 31 corresponds to a first opening 211, and each data signal line 41 corresponds to only one second opening 212. Furthermore, each first opening 211 in the conductive layer 2 and the corresponding drive gate metal 31 are located at the same position on the flexible substrate 1 and have the same shape and size. Each second opening 212 in the conductive layer 2 and the corresponding data signal line 41 are located at the same position on the flexible substrate 1 and have the same shape and size.

[0081] In this embodiment, the ratio of the parasitic capacitance between the conductive layer 2 and the drive gate metal 31 to the storage capacitance is less than or equal to 5‰; and the ratio of the parasitic capacitance between the conductive layer 2 and the data signal line 41 to the storage capacitance is less than or equal to 5‰. By providing the first opening 211 and the second opening 212 at corresponding positions between the conductive layer 2 and the drive gate metal 31 and the data signal line 41, the parasitic capacitance between the conductive layer 2 and the drive gate metal 31 and the data signal line 41 can be reduced, thereby reducing crosstalk and improving the display quality and user experience of the flexible display panel.

[0082] In other embodiments, when the openings 21 include both first openings 211 corresponding to the drive gate metal 31 and second openings 212 corresponding to the data signal lines 41, the first projection and the second projection may partially overlap. That is, each first opening 211 in the conductive layer 2 and the corresponding drive gate metal 31 may overlap but not completely coincide with each other in position on the flexible substrate 1. Furthermore, their shapes and sizes may differ, as long as they overlap on the flexible substrate 1. For example, the opening area of ​​the first opening 211 may be larger or smaller than that of the drive gate metal 31; the first opening 211 may be circular while the drive gate metal 31 may be rectangular, etc., but this is not limiting. Furthermore, each second opening 212 in the conductive layer 2 and the corresponding data signal line 41 may overlap but not completely coincide with each other in position on the flexible substrate 1. Furthermore, their shapes and sizes may differ, as long as they overlap on the flexible substrate 1. For example, the opening area of ​​the second opening 212 may be larger or smaller than the data signal line 41; the shape of the second opening 212 may be elliptical, and the data signal line 41 may be rectangular, etc., but the present invention is not limited thereto. Furthermore, in this case, the ratio of the parasitic capacitance between the conductive layer 2 and the drive gate metal 31 to the storage capacitance may be less than or equal to 5‰; and the ratio of the parasitic capacitance between the conductive layer 2 and the data signal line 41 to the storage capacitance may be less than or equal to 5‰.

[0083] For other aspects of this embodiment, reference may be made to the first and second embodiments, and repeated details will not be repeated.

[0084] [Fifth embodiment]

[0085] FIG8 is a schematic structural diagram of a conductive layer according to a fifth embodiment of the present invention.

[0086] 6 and 8 , in this embodiment, similar to the fourth embodiment, the opening 21 includes both a first opening 211 corresponding to the drive gate metal 31 and a second opening 212 corresponding to the data signal line 41. Unlike the fourth embodiment, each light-emitting sub-pixel corresponds to a second opening 212, and all second openings 212 corresponding to all light-emitting sub-pixels in each column correspond to a data signal line 41. Furthermore, the width of each data signal line 41 is the same as that of the second opening 212, that is, the first projection is included in the second projection. Furthermore, among all second openings 212 corresponding to the same data signal line 41, a gap of the same width exists between every two adjacent second openings 212. In other embodiments, the gap of the same width between every two adjacent second openings 212 may also be different, as long as it can achieve the purpose of reducing parasitic capacitance and thus reducing crosstalk.

[0087] In other embodiments, when the openings 21 include both first openings 211 corresponding to the drive gate metal 31 and second openings 212 corresponding to the data signal lines 41, each first opening 211 in the conductive layer 2 and the corresponding drive gate metal 31 may overlap but not be completely identical in position on the flexible substrate 1. Furthermore, the shapes and sizes of the first openings 211 and the second openings 212 may differ, requiring only overlap on the flexible substrate 1. For example, the opening area of ​​the first opening 211 may be larger or smaller than that of the drive gate metal 31; the shape of the first opening 211 may be circular while that of the drive gate metal 31 may be rectangular, etc., but this is not limiting. Furthermore, in this case, the ratio of the parasitic capacitance to the storage capacitance of the conductive layer 2 and the drive gate metal 31 may be less than or equal to 5‰. Furthermore, each second opening 212 in the conductive layer 2 and the corresponding data signal line 41 may overlap but not be contained in the flexible substrate 1. Furthermore, the widths and shapes of the second openings 212 and the second openings 212 may differ, requiring only overlap on the flexible substrate 1. For example, the width of the second opening 212 may be larger or smaller than the data signal line 41; the second opening 212 may be elliptical, and the data signal line 41 may be rectangular, etc., but the present invention is not limited thereto. Furthermore, in this case, the ratio of the parasitic capacitance between the conductive layer 2 and the data signal line 41 to the storage capacitance may be less than or equal to 5‰.

[0088] For other aspects of this embodiment, reference may be made to the first and third embodiments, and repeated details will be omitted.

[0089] In summary, the flexible display panel of the present invention, (1) by setting the opening 21 at the corresponding position of the conductive layer 2 and the data signal line 41 and / or the driving gate metal 31, can reduce the parasitic capacitance between the conductive layer 2 and the data signal line 41 and / or the driving gate metal 31, thereby reducing the crosstalk phenomenon, and improving the display effect and user experience of the flexible display panel; (2) by setting the conductive layer 2 between the flexible substrate 1 and the organic light-emitting structure 5, since the conductive layer 2 has good conductivity, it can not only weaken the polarization effect of the organic light-emitting structure 5 on the flexible substrate 1, but also shield the effect of the polarization charge on the flexible substrate 1 on the organic light-emitting structure 5, thereby avoiding the charge distribution on the organic light-emitting structure 5 from being affected by the polarization charge on the flexible substrate 1, thereby avoiding the image retention phenomenon on the flexible display panel, and improving the display effect and user experience of the flexible display panel.

[0090] FIG9 shows a schematic structural diagram of a flexible display device provided by an embodiment of the present invention.

[0091] As shown in Figure 9 , based on the same inventive concept, another embodiment of the present invention further provides a flexible display device 6 comprising the aforementioned flexible display panel. Flexible display device 6 can be a foldable mobile phone or other device with a foldable screen. Other aspects of this embodiment can refer to the aforementioned flexible display panel embodiment, achieving the same technical effects. The repetitive details will not be repeated here.

[0092] In summary, the flexible display panel and the flexible display device of the present invention (1) can reduce the parasitic capacitance between the conductive layer and the data signal line and / or the driving gate metal by setting openings at corresponding positions of the conductive layer and the data signal line and / or the driving gate metal, thereby reducing the crosstalk phenomenon and improving the display effect and user experience of the flexible display panel; (2) by setting a conductive layer between the flexible substrate and the organic light-emitting structure, the conductive layer has good conductivity, which can not only weaken the polarization effect of the organic light-emitting structure on the flexible substrate, but also shield the effect of the polarization charge on the flexible substrate on the organic light-emitting structure, thereby avoiding the charge distribution on the organic light-emitting structure from being affected by the polarization charge on the flexible substrate, thereby avoiding the image retention phenomenon on the flexible display panel, and improving the display effect and user experience of the flexible display panel.

[0093] The above is a further detailed description of the present invention in conjunction with specific optional embodiments, and the specific implementation of the present invention should not be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A flexible display panel, characterized in that: include: Flexible substrates; a conductive layer, located on one side of the flexible substrate, and having a plurality of openings; a gate layer, located on a side of the conductive layer away from the flexible substrate, comprising a plurality of drive gate metals arranged in an array, wherein transistors corresponding to the drive gate metals are transistors that directly drive light-emitting sub-pixels to emit light; as well as a data signal layer, located on a side of the gate layer away from the conductive layer, and having a plurality of data signal lines; The opening is based on a first projection of the flexible substrate and at least partially overlaps with a second projection of the driving gate metal and / or the data signal line based on the flexible substrate.

2. The flexible display panel according to claim 1, wherein: The ratio of the parasitic capacitance of the conductive layer and the driving gate metal to the storage capacitance is less than or equal to 5‰; and / or The ratio of the parasitic capacitance between the conductive layer and the data signal line to the storage capacitance is less than or equal to 5‰.

3. The flexible display panel according to claim 1, wherein: The first projection completely coincides with the second projection.

4. The flexible display panel according to claim 1, wherein: The openings include first openings corresponding to the driving gate metal and / or second openings corresponding to the data signal lines; Each of the light-emitting sub-pixels corresponds to one of the first openings and / or one of the second openings; In all the second openings corresponding to the same data signal line, there is a gap with the same width between every two adjacent second openings.

5. The flexible display panel according to claim 3 or 4, characterized in that: The second projection is merely a projection of the driving gate metal based on the flexible substrate.

6. The flexible display panel according to claim 3 or 4, characterized in that: The second projection is only a projection of the data signal line based on the flexible substrate.

7. The flexible display panel according to claim 3 or 4, characterized in that: The second projection is a projection of the driving gate metal and the data signal line based on the flexible substrate.

8. The flexible display panel according to claim 1, wherein: The flexible display panel further includes a first power signal line, and the conductive layer is grounded or electrically connected to the first power signal line.

9. The flexible display panel according to claim 1, wherein: The flexible display panel further includes: an organic light-emitting structure located on a side of the data signal layer away from the gate layer; The surface resistivity of the conductive layer is less than or equal to 10 11 Ω; The conductive layer is made of amorphous silicon, molybdenum, aluminum-titanium alloy, copper or nanosilver; The thickness of the conductive layer is 1 nm to 1 μm; Along a direction perpendicular to the flexible substrate, a distance between the conductive layer and the flexible substrate is less than or equal to 100 μm.

10. A flexible display device, characterized in that: The flexible display panel comprises the flexible display panel according to any one of claims 1 to 9.

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