CN111048563A - Flexible display panel and flexible display device - Google Patents
Flexible display panel and flexible display device Download PDFInfo
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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Abstract
The embodiment of the invention provides a flexible display panel and a flexible display device, relates to the technical field of display, and effectively improves a color mixing phenomenon. The flexible display panel includes: a substrate on which a pixel circuit layer and a light emitting element layer are stacked, the light emitting element layer having a plurality of light emitting elements; a display area including a bending area; the filter layer is positioned on one side of the light-emitting element layer, which is back to the substrate; the filter layer comprises a plurality of color resistance layers and a plurality of shading layers, the color of the color resistance is the same as the light emitting color of the light emitting element overlapped with the color resistance, and the color resistance layers and the shading layers are alternately arranged in an orthographic projection manner on the substrate; the color resistance layer comprises a first color resistance layer, the first color resistance layer is positioned in the bending area, the shading layer comprises a first shading layer, and the first shading layer is positioned in the bending area; under the same bending force, the deformation of the first shading layer is larger than that of the first color resistance layer.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a flexible display panel and a flexible display device.
[ background of the invention ]
Be equipped with many metal in the flexible display panel and walk the line, for reducing screen reflectivity, still be provided with the polaroid structure in the flexible display panel. However, due to the brittle texture of the polarizer, when the flexible display panel is bent, the polarizer is easily creased or even broken, and for this reason, a filter layer is usually used in the prior art to replace the polarizer. As shown in fig. 1, fig. 1 is a schematic bending diagram of a conventional flexible display panel, where the flexible display panel includes a filter layer 1 ', and the filter layer 1' includes a color resistor layer 2 'and a light shielding layer 3', where the color resistor 2 'is used to filter light having a color different from that of the color resistor in external environment light, so as to perform a filtering function, and the light shielding layer 3' is used to shield a metal trace of a non-light-emitting portion, so as to prevent the metal trace from being visible to human eyes. However, when the flexible display panel is bent, the color resist layer 2 'in the bending region 4' is deformed, so that the relative positions of the color resist layer 2 'and the light emitting element 5' opposite to the color resist layer are shifted, and further, a part of light emitted from the light emitting layer 5 'is emitted through the adjacent color resist layer 2', thereby causing a color mixing phenomenon.
[ summary of the invention ]
In view of this, embodiments of the present invention provide a flexible display panel and a flexible display device, which effectively improve a color mixing phenomenon.
In one aspect, an embodiment of the present invention provides a flexible display panel, including:
a substrate on which a pixel circuit layer and a light emitting element layer are stacked, the light emitting element layer having a plurality of light emitting elements;
a display area comprising a bend region;
the filter layer is positioned on one side, back to the substrate, of the light-emitting element layer; the filter layer comprises a plurality of color resistance layers and a plurality of shading layers, the color of the color resistance is the same as the light emitting color of the light emitting element overlapped with the color resistance, and the color resistance layers and the shading layers are alternately arranged in an orthographic projection manner on the substrate;
the color resistance layer comprises a first color resistance layer, the first color resistance layer is located in the bending area, the light shielding layer comprises a first light shielding layer, and the first light shielding layer is located in the bending area; under the action of the same bending force, the deformation amount of the first shading layer is larger than that of the first color resistance layer.
In another aspect, an embodiment of the present invention provides a flexible display device, including the flexible display panel described above.
One of the above technical solutions has the following beneficial effects:
when the flexible display panel is bent, under the action of the same bending force, the deformation amount of the first light shielding layer in the bending region is larger than that of the first color resistance layer, so that the first light shielding layer has a larger coverage area after being deformed, namely, the light shielding area of the first light shielding layer is increased, when part of light emitted by the light emitting element is obliquely emitted (the direction perpendicular to the substrate is forward), the part of light can be shielded by the first light shielding layer, and the light is prevented from being emitted through the color resistance layers corresponding to the adjacent light emitting elements. Therefore, by adopting the technical scheme provided by the embodiment of the invention, the deformation of the first light shielding layer and the first color resistance layer in the bending area is adjusted, so that the color mixing phenomenon of the bending area can be effectively improved, and the overall display effect of the flexible display panel is further optimized.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of a conventional flexible display panel
Fig. 2 is a top view of a flexible display panel according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a filter layer in a flexible display panel according to an embodiment of the present invention;
fig. 4 is a schematic bending diagram of a flexible display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a bending region of a flexible display panel according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a bending region of a flexible display panel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a bending region of a flexible display panel according to an embodiment of the present invention;
fig. 8 is a schematic view illustrating another structure of a filter layer in a flexible display panel according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a bending region of a flexible display panel according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a bending region of a flexible display panel according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a flexible display device according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first and second may be used to describe the light-shielding layer and the color-resist layer in the embodiments of the present invention, the light-shielding layer and the color-resist layer should not be limited by these terms. These terms are only used to distinguish the light-shielding layer and the color resist layer from each other. For example, the first light-shielding layer may also be referred to as a second light-shielding layer, and similarly, the second light-shielding layer may also be referred to as a first light-shielding layer, without departing from the scope of the embodiments of the present invention.
An embodiment of the present invention provides a flexible display panel, as shown in fig. 2 to 4, fig. 2 is a top view of the flexible display panel provided in the embodiment of the present invention, fig. 3 is a schematic view of a structure of a filter layer in the flexible display panel provided in the embodiment of the present invention, fig. 4 is a schematic view of a bending of the flexible display panel provided in the embodiment of the present invention, and the flexible display panel includes: a substrate 1, wherein a pixel circuit layer 2 and a light-emitting element layer 3 are stacked on the substrate 1, and a plurality of light-emitting elements 4 are arranged in the light-emitting element layer 3; a display area 5, the display area 5 comprising a bending area 6; the filter layer 7 is positioned on one side, opposite to the substrate 1, of the light-emitting element layer 3, and the filter layer 7 is used for replacing a polarizer in the prior art so as to improve the anti-reflection capability of the flexible display panel; the filter layer 7 comprises a plurality of color resistance layers 8 and a plurality of light shielding layers 9, wherein the color resistance layers 8 are used for filtering light with different colors from the color of the color resistance layers in the external environment light, so as to play a role of filtering light, and the light shielding layers 9 are used for shielding metal wires in a non-light-emitting area, so that the metal wires are prevented from being visible to human eyes; the color of the color resistance layer 8 is the same as the light emitting color of the light emitting element 4 overlapped with the color resistance layer, and the orthographic projection of the color resistance layer 8 and the light shielding layer 9 on the substrate 1 is alternately arranged; the color resistance layer 8 comprises a first color resistance layer 10, the first color resistance layer 10 is located in the bending area 6, the shading layer 9 comprises a first shading layer 11, and the first shading layer 11 is located in the bending area 6; under the same bending force, the deformation amount of the first light shielding layer 11 is larger than that of the first color resist layer 10.
First, it should be noted that when the flexible display panel is bent, at least a partial region of the display area 5 is bent, and the position of the bent partial region is the bent region 6 according to the embodiment of the present invention, that is, the bent region 6 refers to a non-flat region when the flexible display panel is bent. In addition, the above orthographic projections of the color resist layers 8 and the light shielding layers 9 on the base substrate 1 are alternately arranged, that is, in the orthographic projection of the filter layer 7 on the base substrate 1, the orthographic projection of one light shielding layer 9 is spaced between the orthographic projections of two adjacent color resist layers 8, and the orthographic projection of one color resist layer 8 is spaced between the orthographic projections of two adjacent light shielding layers 9.
When the flexible display panel is bent, under the same bending force, the deformation amount of the first light shielding layer 11 in the bending region 6 is greater than the deformation amount of the first color resist layer 10, and with reference to fig. 4, the first light shielding layer 11 can have a larger coverage area after being deformed, that is, the light shielding area of the first light shielding layer 11 is increased, when a part of light emitted by the light emitting element 4 is emitted obliquely (the direction perpendicular to the substrate 1 is a forward direction), the part of light is shielded by the first light shielding layer 11, and is prevented from being emitted through the color resist layer 8 (hereinafter referred to as an adjacent color resist layer 8) corresponding to the adjacent light emitting element 4. Therefore, with the flexible display panel provided by the embodiment of the present invention, the deformation of the first light shielding layer 11 and the first color resist layer 10 in the bending region 6 is adjusted, so that the color mixing phenomenon of the bending region 6 can be effectively improved, and the overall display effect of the flexible display panel is further optimized.
In addition, referring to fig. 3 again, the pixel circuit layer 2 includes a plurality of pixel circuits 12, each pixel circuit 12 includes an active layer 13, a gate layer 14, and a source drain layer 15, which are stacked, the light emitting element 4 includes an anode 16, a light emitting layer 17, and a cathode 18, which are disposed, electrons and holes are injected into the light emitting layer 17 from the cathode 18 and the anode 16, respectively, excitons are formed in the light emitting layer 17 and light emitting molecules are excited, so that the light emitting layer 17 emits visible light, and light emitted by the light emitting element 4 according to the embodiment of the present invention specifically refers to light emitted by the light emitting layer 17 in the light emitting element 4.
Alternatively, the elastic modulus of the first light shielding layer 11 is smaller than that of the first color resist layer 10, and specifically, when the filter layer 7 is formed, the first light shielding layer 11 may be formed by using a light shielding material having a larger elastic modulus, and the first color resist layer 10 may be formed by using a color resist layer 8 having a smaller elastic modulus.
The elastic modulus of the first light-shielding layer 11 is E1, the first color resistanceThe elastic modulus of the layer 10 is E2, the initial size of the first light shielding layer 11 is L1, and the initial size of the first color resist layer 10 is L2, for example, when the flexible display panel is bent, the first light shielding layer 11 and the first color resist layer 10 are deformed by the bending force F, and the deformation rate of the first light shielding layer 11 is
Amount of deformation of the first light-shielding layer 11
Deformation ratio of the first color resist layer 10
Amount of deformation of the first color resist layer 10
Therefore, the elastic modulus of the first light shielding layer 11 is smaller than the elastic modulus of the first color resist layer 10, so that the first light shielding layer 11 can be further ensured to have a larger deformation, the light shielding area of the deformed first light shielding layer 11 is ensured to be increased, and partial light emitted by the light emitting element 4 is prevented from being emitted through the adjacent first color resist layer 10 to a greater extent.
Optionally, referring to fig. 3 and fig. 4 again, the first light shielding layer 11 and the first color resist layer 10 are disposed in the same layer, and at this time, on the premise that the first light shielding layer 11 has a large deformation amount, the first light shielding layer 11 and the first color resist layer 10 only need to occupy one film thickness, so that the overall thickness of the flexible display panel is effectively reduced.
Optionally, referring to fig. 2 again, the bending region 6 has a bending axis 20, the bending region 6 includes a first bending region 21 and a second bending region 22, and the first bending region 21 is located on one side of the second bending region 22 close to the bending axis 20;
wherein E isBM1The elastic modulus E of the first light-shielding layer 11 in the first bending region 21BM2The elastic modulus E of the first light-shielding layer 11 in the second bending region 22CF1Is the elastic modulus, E, of the first color resist layer 10 in the first bending region 21CF2Is the elastic modulus of the first color resistance layer 10 in the second bending region 22.
In the prior art, when the flexible display panel is bent, the closer to the bending axis, the greater the bending degree of the flexible display panel is, so that the color resistance layer in the region has a larger deformation amount, and further the flexible display panel is: the coverage area of the color resistance layer in the area close to the bending axis is larger, the quantity of oblique light rays emitted by the light-emitting element through the adjacent color resistance layers is larger, and the color mixing phenomenon is more serious.
In the embodiment of the present invention, referring to fig. 5, fig. 5 is a schematic structural diagram of a bending region of a flexible display panel provided in the embodiment of the present invention, and compared with a second bending region 22 far from a bending axis 20, the bending region in the first bending region 21 near the bending axis 20 is
Smaller, so that: in the first bending region 21, the elastic modulus E of the first light-shielding layer 11BM1Smaller, that is, the deformation amount of the first light shielding layer 11 is larger, so that the shielding degree of the first light shielding layer 11 on the oblique light emitted by the light emitting element 4 is effectively increased; alternatively, the elastic modulus E of the first color resist layer 10CF1More specifically, the deformation of the first color resist layer 10 is smaller, so that the coverage area of the first color resist layer 10 is reduced, the probability that the oblique light emitted by the light emitting element 4 is emitted through the adjacent first color resist layer 10 is reduced, and the color mixing phenomenon of the first bending region 21 is effectively improved.
Optionally, with reference to fig. 2 and fig. 6, fig. 6 is another schematic structural diagram of a bending region of a flexible display panel according to an embodiment of the present invention, where the bending region 6 has a bending axis 20, and an elastic modulus of the first light shielding layer 11 decreases along a boundary of the bending region 6 toward the bending axis 20.
Along the direction of the boundary of the bending region 6 towards the bending axis 20, the bending degree of the flexible display panel is gradually increased, and by gradually decreasing the elastic modulus of the first light shielding layer 11, the elastic modulus of the first light shielding layer 11 in the region with a larger bending degree can be smaller, so that the deformation of the part of the first light shielding layer 11 is larger, the light shielding area of the part of the first light shielding layer 11 is correspondingly larger, the oblique light emitted by the light emitting element 4 is shielded to a greater extent, and the color mixing phenomenon of the bending region 6 is effectively improved. In addition, because the bending degree of the region far away from the bending axis 20 is small, correspondingly, the deformation amount of the first color resistance layer 10 is small, and the elastic modulus of the first light shielding layer 11 of the region far away from the bending axis 20 is set to be larger, so that the deformation amount of the first light shielding layer 11 in the region can be prevented from being too large, and the first light shielding layer 11 in the region can be prevented from shielding the light emitting region of the light emitting element 4 to influence normal light emission.
Alternatively, referring to fig. 2 and fig. 7, fig. 7 is a schematic structural diagram of a bending region of a flexible display panel according to an embodiment of the present invention, where the bending region 6 has a bending axis 20, and an elastic modulus of the first color resist layer 10 increases along a boundary of the bending region 6 toward the bending axis 20. The bending degree of the flexible display panel gradually increases along the boundary of the bending region 6 towards the bending axis 20, and by increasing the elastic modulus of the first color resist layer 10, even if the bending degree of the region is large in the bending region 6 close to the bending axis 20, the deformation amount of the first color resist layer 10 in the region is not too large based on the large elastic modulus, so that the probability that the oblique light emitted by the light emitting element 4 is emitted through the adjacent first color resist layer 10 is reduced, and the color mixing phenomenon of the bending region 6 is effectively improved.
Alternatively, as shown in fig. 8, fig. 8 is another schematic structural diagram of a filter layer in a flexible display panel according to an embodiment of the present invention, in which a first light shielding layer 11 and a first color resist layer 10 are disposed in different layers, and the first light shielding layer 11 is located on a side of the first color resist layer 10 opposite to the substrate 1. Compared with the first color resist layer 10, the first light shielding layer 11 is far away from the substrate 1, so that when the flexible display panel is bent, the tensile stress applied to the first light shielding layer 11 is larger, the deformation of the first light shielding layer 11 is larger, and the light shielding area of the first light shielding layer 11 is increased.
Optionally, referring to fig. 8 again, the flexible display panel further includes: a first buffer layer 23 and a second buffer layer 24, wherein the first buffer layer 23 is located on a side of the light emitting element layer 3 facing away from the substrate 1, and the first color resist layer 10 is located on a side of the first buffer layer 23 facing away from the substrate 1; the second buffer layer 24 is positioned on the side of the first color resistance layer 10, which is back to the substrate 1, and the first shading layer 11 is positioned on the side of the second buffer layer 24, which is back to the substrate 1; the elastic modulus of the first buffer layer 23 is greater than the elastic modulus of the second buffer layer 24.
When the flexible display panel is bent, the first buffer layer 23 is bent to drive the first color resist layer 10 to deform, the second buffer layer 24 is bent to drive the first light shielding layer 11 to deform, and compared with the first buffer layer 23, the second buffer layer 24 has a smaller elastic modulus, so that the deformation degree of the second buffer layer 24 is larger, the first light shielding layer 11 is driven by the second buffer layer 24 to deform greatly, and the light shielding area of the deformed first light shielding layer 11 is effectively increased.
Further, referring to fig. 2 and 9, fig. 9 is another schematic structural diagram of a bending region of a flexible display panel according to an embodiment of the present invention, where the bending region 6 has a bending axis 20, and an elastic modulus of the first buffer layer 23 increases along a boundary of the bending region 6 in a direction toward the bending axis 20, and specifically, the first buffer layer 23 may be formed by coating buffer materials with different elastic moduli in different regions. Along the border of bending region 6 towards the direction of bending axis 20, flexible display panel's the degree of buckling crescent, through the elastic modulus who makes first buffer layer 23 increase progressively, can guarantee that first buffer layer 23 has great elastic modulus in the great region of degree of buckling, thereby make the degree of deformation of first buffer layer 23 in this region less, and then make first color resistance layer 10 in this region also take place less deformation under the drive of first buffer layer 23, avoided this part first color resistance layer 10 too big by the deformation, and then avoided the oblique light that light-emitting component 4 jetted out to penetrate the probability via adjacent first color resistance layer 10.
Alternatively, referring to fig. 2 and 10, fig. 10 is a schematic structural diagram of a bending region of a flexible display panel according to an embodiment of the present invention, where the bending region 6 has a bending axis 20, and an elastic modulus of the second buffer layer 24 decreases along a boundary of the bending region 6 in a direction toward the bending axis 20, and specifically, the second buffer layer 24 may be formed by coating buffer materials with different elastic moduli in different regions. Along the direction of the border of bending region 6 towards bending axis 20, the degree of bending of flexible display panel gradually increases, can guarantee that second buffer layer 24 has less elastic modulus in the great region of degree of bending to make the degree of deformation of second buffer layer 24 in this region great, and then make first light shield layer 11 in this region also take place great deformation under the drive of second buffer layer 24, make the shading area increase of this part of first light shield layer 11.
Optionally, referring again to fig. 2 and 3, when the flexible display panel is partially bent, the display area 5 further includes a flat area 25; the color resistance layer 8 further comprises a second color resistance layer 26, and the second color resistance layer 26 is positioned in the flat area 25; the light-shielding layer 9 further includes a second light-shielding layer 27, and the second light-shielding layer 27 is located in the flat region 25.
When the flexible display panel is bent, the second color resist layer 26 and the second light shielding layer 27 in the flat region 25 are not deformed since the flat region 25 is a flat surface. In addition, in the embodiment of the present invention, since only the deformation amounts of the first light shielding layer 11 and the first color resist layer 10 in the bending region 6 are adjusted, when the flexible display panel is bent, the deformation of the first light shielding layer 11 and the first color resist layer 10 does not affect the normal light emission in the flat region 25.
As shown in fig. 11, fig. 11 is a schematic structural diagram of a flexible display device provided in an embodiment of the present invention, where the flexible display device includes the flexible display panel 100. The specific structure of the display panel 100 has been described in detail in the above embodiments, and is not described herein again. Of course, the display device shown in fig. 11 is only a schematic illustration, and the display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
Since the flexible display device provided by the embodiment of the invention includes the flexible display panel 100, by using the flexible display device, the first light shielding layer 11 in the bending region 6 can have a larger light shielding area after being deformed, when a part of light emitted by the light emitting element 4 is emitted obliquely, the part of light can be shielded by the first light shielding layer 11, so that the light is prevented from being emitted through an adjacent color resistance layer, and the color mixing phenomenon of the flexible display device is effectively improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (12)
1. A flexible display panel, comprising:
a substrate on which a pixel circuit layer and a light emitting element layer are stacked, the light emitting element layer having a plurality of light emitting elements;
a display area comprising a bend region;
the filter layer is positioned on one side, back to the substrate, of the light-emitting element layer; the filter layer comprises a plurality of color resistance layers and a plurality of shading layers, the color of the color resistance is the same as the light emitting color of the light emitting element overlapped with the color resistance, and the color resistance layers and the shading layers are alternately arranged in an orthographic projection manner on the substrate;
the color resistance layer comprises a first color resistance layer, the first color resistance layer is located in the bending area, the light shielding layer comprises a first light shielding layer, and the first light shielding layer is located in the bending area; under the action of the same bending force, the deformation amount of the first shading layer is larger than that of the first color resistance layer.
2. The flexible display panel of claim 1, wherein the elastic modulus of the first light shielding layer is less than the elastic modulus of the first color resist layer.
3. The flexible display panel of claim 2, wherein the first light-shielding layer and the first color-resist layer are disposed in the same layer.
4. The flexible display panel according to claim 2, wherein the bending region has a bending axis, and the bending region comprises a first bending region and a second bending region, and the first bending region is located on one side of the second bending region close to the bending axis;
wherein E isBM1The elastic modulus of the first light shielding layer in the first bending region, EBM2The elastic modulus E of the first light shielding layer in the second bending regionCF1Is the modulus of elasticity, E, of the first color resist layer in the first bending regionCF2The elastic modulus of the first color resistance layer in the second bending area is shown.
5. The flexible display panel according to claim 2, wherein the bending region has a bending axis, and the elastic modulus of the first light shielding layer decreases along a boundary of the bending region in a direction toward the bending axis.
6. The flexible display panel according to claim 2, wherein the bending region has a bending axis, and the elastic modulus of the first color resistance layer increases along a boundary of the bending region in a direction toward the bending axis.
7. The flexible display panel according to claim 1, wherein the first light shielding layer and the first color-resist layer are different layers, and the first light shielding layer is located on a side of the first color-resist layer opposite to the substrate.
8. The flexible display panel of claim 7, further comprising:
the first buffer layer is positioned on one side, back to the substrate base plate, of the light-emitting element layer, and the first color resistance layer is positioned on one side, back to the substrate base plate, of the first buffer layer;
the second buffer layer is positioned on one side, back to the substrate, of the first color resistance layer, and the first shading layer is positioned on one side, back to the substrate, of the second buffer layer;
the elastic modulus of the first buffer layer is greater than the elastic modulus of the second buffer layer.
9. The flexible display panel of claim 8,
the bending region is provided with a bending axis, and the elastic modulus of the first buffer layer is increased along the direction of the boundary of the bending region towards the bending axis.
10. The flexible display panel of claim 8,
the bending region is provided with a bending axis, and the elastic modulus of the second buffer layer is decreased progressively along the direction of the boundary of the bending region towards the bending axis.
11. The flexible display panel of claim 1, wherein the display area further comprises a flat area;
the color resistance layer further comprises a second color resistance layer, and the second color resistance layer is located in the flat area;
the light shielding layer further comprises a second light shielding layer, and the second light shielding layer is located in the flat area.
12. A flexible display device comprising the flexible display panel according to any one of claims 1 to 11.
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| CN201911299736.2A CN111048563B (en) | 2019-12-17 | 2019-12-17 | Flexible display panel and flexible display device |
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| CN201911299736.2A CN111048563B (en) | 2019-12-17 | 2019-12-17 | Flexible display panel and flexible display device |
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| CN111725249A (en) * | 2020-06-03 | 2020-09-29 | 錼创显示科技股份有限公司 | Flexible display panel with micro-assembly |
| CN111725270A (en) * | 2020-06-08 | 2020-09-29 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel and preparation method thereof |
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| CN113470524A (en) * | 2021-06-28 | 2021-10-01 | 合肥维信诺科技有限公司 | Flexible cover plate and flexible display module thereof |
| CN114188491A (en) * | 2021-11-24 | 2022-03-15 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
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