CN115331549A - Flexible display panel and electronic device - Google Patents
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- CN115331549A CN115331549A CN202210916505.7A CN202210916505A CN115331549A CN 115331549 A CN115331549 A CN 115331549A CN 202210916505 A CN202210916505 A CN 202210916505A CN 115331549 A CN115331549 A CN 115331549A
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Classifications
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- G—PHYSICS
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- 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
-
- 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
- G09F9/33—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 being semiconductor devices, e.g. diodes
- G09F9/335—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 being semiconductor devices, e.g. diodes being organic light emitting diodes [OLED]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
- H05K7/2099—Liquid coolant with phase change
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
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Abstract
The utility model provides an among flexible display panel and the electron device, flexible display panel is including setting up first stromatolite and the second stromatolite in the relative both sides of flexible display substrate, at least one deck in first stromatolite and/or the second stromatolite is doped with phase change energy storage granule, phase change energy storage granule includes phase change energy storage material and parcel phase change energy storage material's protection film, phase change energy storage granule relies on phase change energy storage material to absorb the heat under high temperature environment, thereby reduce flexible display panel's temperature, and rely on phase change energy storage material to release the heat under low temperature environment, thereby improve flexible display panel's temperature, so can make flexible display panel work in relatively stable temperature environment, make the rete on the flexible display panel maintain comparatively stable modulus, thereby avoid under low temperature environment the modulus increase of rete to lead to the rete fracture, and then alleviate the unstable problem of current folding display screen bending property in the temperature environment of difference.
Description
Technical Field
The application relates to the technical field of display, in particular to a flexible display panel and an electronic device.
Background
The existing folding display screen usually needs to stick a plurality of film layers through OCA and other adhesive materials, and the adhesive materials can release part of stress generated by bending the film layers. However, the glue material and the film layer of the foldable display screen are usually made of organic materials, and the organic materials have high sensitivity to temperature, for example, the modulus of the organic film layer increases in a low-temperature environment and is easy to break, so that the folding performance of the foldable display screen is unstable in different temperature environments.
Disclosure of Invention
The application provides a flexible display panel and electron device to alleviate current folding display screen and buckle the unstable technical problem of performance in the temperature environment of difference.
In order to solve the above problems, the technical solution provided by the present application is as follows:
the embodiment of the application provides a flexible display panel, it includes:
a flexible display substrate having a light exit side;
the first lamination is arranged on the light emergent side of the flexible display substrate;
the second lamination is arranged on one side, far away from the first lamination, of the flexible display substrate;
at least one layer of the first lamination layer and/or the second lamination layer is doped with phase change energy storage particles, and the phase change energy storage particles comprise a phase change energy storage material and a protective film wrapping the phase change energy storage material.
In the flexible display panel provided by the embodiment of the application, the first stacked layer includes an anti-reflection layer, and the anti-reflection layer is doped with the phase-change energy storage particles.
In the flexible display panel provided in the embodiment of the present application, the antireflection layer includes:
the first adhesive layer is arranged on the light emergent side of the flexible display substrate;
the polaroid is attached to the flexible display substrate through the first adhesive layer;
at least one layer of the first adhesive layer and the polaroid is doped with the phase change energy storage particles.
In the flexible display panel provided in the embodiment of the application, the antireflection layer includes a color filter, the color filter includes a light-shielding layer and a color film, an opening is formed in the light-shielding layer, the color film is disposed in the opening, and the light-shielding layer and/or the color film are doped with the phase change energy storage particles.
In the flexible display panel provided in the embodiment of the present application, the first laminate further includes:
the second adhesive layer is arranged on one side of the anti-reflection layer, which is far away from the flexible display substrate;
the covering window is attached to the anti-reflection layer through the second adhesive layer;
the second adhesive layer is doped with the phase change energy storage particles.
In the flexible display panel provided by the embodiment of the application, the first laminated layer further includes a hard coating layer, the hard coating layer is disposed on a side of the anti-reflection layer away from the flexible display substrate, and the hard coating layer is doped with the phase change energy storage particles.
In the flexible display panel provided in the embodiment of the present application, the second stack includes:
the third adhesive layer is arranged on one side, far away from the first lamination, of the flexible display substrate;
the first supporting layer is attached to the flexible display substrate through the third adhesive layer;
wherein at least one of the third adhesive layer and the first support layer is doped with the phase change energy storage particles.
In the flexible display panel provided in the embodiment of the present application, the second stack further includes:
the fourth adhesive layer is arranged on one side, away from the flexible display substrate, of the first supporting layer;
the second supporting layer is attached to the first supporting layer through the fourth adhesive layer;
and the fourth viscose layer is doped with the phase change energy storage particles.
In the flexible display panel provided by the embodiment of the application, the particle size of the phase change energy storage particles ranges from 20 nanometers to 500 nanometers.
Embodiments of the present application further provide an electronic device, which includes a housing and the flexible display panel of one of the foregoing embodiments, where the flexible display panel is assembled in the housing.
The beneficial effect of this application does: in the flexible display panel and the electronic device that this application provided, flexible display panel is including setting up first stromatolite and the second stromatolite in the relative both sides of flexible display substrate, first stromatolite and/or at least one deck in the second stromatolite is doped with phase change energy storage particle, phase change energy storage particle includes phase change energy storage material and parcel phase change energy storage material's protection film, phase change energy storage particle relies on phase change energy storage material to absorb the heat under high temperature environment to reduce flexible display panel's temperature, and rely on phase change energy storage material to release the heat under low temperature environment, thereby improve flexible display panel's temperature, so can make flexible display panel work in relatively stable temperature environment, make the rete on the flexible display panel maintain comparatively stable modulus, thereby avoid the modulus increase of rete to lead to the rete fracture under low temperature environment, and then solved current folding display screen problem that the performance of buckling in the temperature environment of difference unstable.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a flexible display panel according to an embodiment of the present disclosure.
Fig. 2 is a schematic diagram of a detailed structure of a phase change energy storage particle according to an embodiment of the present disclosure.
Fig. 3 is a schematic cross-sectional view of another flexible display panel according to an embodiment of the present disclosure.
Fig. 4 is a schematic cross-sectional view of another flexible display panel according to an embodiment of the present disclosure.
Fig. 5 is a schematic cross-sectional view of a flexible display panel according to an embodiment of the present disclosure.
Fig. 6 is a schematic cross-sectional view of a flexible display panel according to an embodiment of the present disclosure.
Detailed Description
The following description of the various embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments that can be implemented by the application. Directional phrases used in this application, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], etc., refer only to the directions of the attached drawings. Accordingly, the directional terminology is used for purposes of illustration and understanding, and is in no way limiting. In the drawings, elements having similar structures are denoted by the same reference numerals. In the drawings, the thickness of some layers and regions are exaggerated for clarity of understanding and ease of description. That is, the size and thickness of each component shown in the drawings are arbitrarily illustrated, but the present application is not limited thereto.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic cross-sectional structure diagram of a flexible display panel according to an embodiment of the present disclosure, and fig. 2 is a schematic detail structure diagram of phase change energy storage particles according to an embodiment of the present disclosure. The flexible display panel 100 comprises a flexible display substrate 10 and a first layer stack 20 and a second layer stack 30 arranged on opposite sides of the flexible display substrate 10. The flexible display substrate 10 includes a flexible OLED substrate and the like, and the flexible OLED substrate has characteristics of being bendable, foldable and the like, so that the flexible display panel 100 also has bendable and foldable performance. Optionally, the flexible OLED substrate includes a flexible substrate, and functional layers such as a driving circuit layer, a light emitting functional layer, and an encapsulation layer stacked on the flexible substrate.
The flexible display substrate 10 has a light emitting side, where the light emitting side refers to a side of the flexible display substrate 10 used for displaying a picture. The first stack layer 20 is disposed on a light emitting side of the flexible display substrate 10, and the second stack layer 30 is disposed on a side of the flexible display substrate 10 away from the first stack layer 20.
Specifically, the first lamination layer 20 includes an anti-reflection layer, the anti-reflection layer includes a first adhesive layer 22 and a polarizer 21, the first adhesive layer 22 is disposed on the light emitting side of the flexible display substrate 10, and the polarizer 21 is attached to the flexible display substrate 10 through the first adhesive layer 22. The polarizer 21 is a circular polarizer 21, and is configured to reduce the reflectivity of the flexible display panel 100.
Optionally, the first stacked layer 20 further includes a second adhesive layer 23 and a cover window 24, the second adhesive layer 23 is disposed on one side of the anti-reflection layer far away from the flexible display substrate 10, and the cover window 24 is attached to the anti-reflection layer through the second adhesive layer 23. The cover window 24 includes one or more stacked layers of transparent protective materials such as Ultra-thin glass (UTG), transparent Polyimide (CPI), and the like, and the cover window 24 is used for protecting the flexible display panel 100.
The second laminate 30 comprises a third adhesive layer 31 and a first supporting layer 32, the third adhesive layer 31 is disposed on one side of the flexible display substrate 10 away from the first laminate 20, and the first supporting layer 32 is disposed on the other side of the flexible display substrate 10 opposite to the first supporting layer 31. The first support layer 32 includes a back sheet, and a material of the back sheet includes polyethylene terephthalate (PET) or the like. The first support layer 32 is used for supporting the flexible display substrate 10 and preventing the film layer of the flexible display substrate 10 from collapsing.
Optionally, in some embodiments, the first support layer 32 may further include an auxiliary support layer formed of foam, graphite, copper foil, and the like, and the auxiliary support layer is used for assisting in supporting the flexible display substrate 10 and also has heat dissipation and shielding effects.
Optionally, the second stacked layer 30 further includes a fourth adhesive layer 33 and a second supporting layer 34, the fourth adhesive layer 33 is disposed on a side of the first supporting layer 32 away from the flexible display substrate 10, and the second supporting layer 34 is attached to the first supporting layer 32 through the fourth adhesive layer 33. The material of the second support layer 34 includes SUS stainless steel, etc., and the second support layer 34 reinforces the supporting performance of the first support layer 32 and maintains the bent shape of the flexible display panel 100.
Optionally, in order to reduce the bending stress of the flexible display panel 100, a hollow area 341 is disposed in the second support layer 34 in a bending region corresponding to the flexible display panel 100, the hollow area 341 is filled with a stress release portion 35, and a material of the stress release portion 35 includes elastic rubber and the like.
The fourth adhesive layer 33 is made of the same material as the third adhesive layer 31, the second adhesive layer 23 and the first adhesive layer 22, and for example, an acrylic or silicone optical adhesive (e.g., OCA) or other adhesive material with high light transmittance and high adhesion can be used. The fourth adhesive layer 33, the third adhesive layer 31, the second adhesive layer 23 and at least one layer of the first adhesive layer 22 are doped with the phase change energy storage particles 40, and the fourth adhesive layer 33, the third adhesive layer 31, the second adhesive layer 23 and the first adhesive layer 22 are all doped with the phase change energy storage particles 40 in this embodiment.
Referring to fig. 2, the Phase Change energy storage particles 40 include a Phase Change Material 41 and a protective film 42 covering the Phase Change Material 41, and the Phase Change Material (PCM) 41 has spontaneous heat absorption and heat release properties, such as that in a high temperature environment, the Phase Change Material 41 can absorb and store heat, and in a low temperature environment, the Phase Change Material 41 can release heat. The protective film 42 includes silicon dioxide (SiO) 2 ) And the protective film 42 wraps the phase change energy storage material 41 to protect the phase change energy storage material 41, so that the phase change energy storage material 41 is prevented from leaking, and the durability of the phase change energy storage material 41 is enhanced.
Optionally, a layer of silicon dioxide is deposited on the surface of the phase change energy storage material 41 by a sol-gel method to form the phase change energy storage particles 40 with a particle size ranging from 20 nm to 500 nm, so as to effectively encapsulate the phase change energy storage material 41. The phase change energy storage particles 40 and the phase change energy storage material 41 comprise one or more of paraffin, naS2O 3.5H O, mgCl 2.12H 2O or C12H24O and other organic or inorganic materials. By selecting the phase change energy storage particles 40 with the particle size range of 20 nm to 500 nm, the influence of doping the phase change energy storage particles 40 on the optical performance of the film material can be reduced as much as possible while the phase change energy storage effect is realized.
Thus, the phase change energy storage particles 40 are doped in the fourth adhesive layer 33, the third adhesive layer 31, the second adhesive layer 23 and the first adhesive layer 22, so that the flexible display panel 100 has an automatic temperature adjustment function, and the flexible display panel 100 can work in a relatively stable environment. Specifically, when the flexible display panel 100 is in a higher temperature environment, the phase change energy storage particles 40 can absorb heat, so as to lower the temperature of the flexible display panel 100; when the flexible display panel 100 is in a lower temperature environment, the phase change energy storage particles 40 can release absorbed heat to raise the temperature of the flexible display panel 100, so that the flexible display panel 100 can work in a relatively stable environment, and a film layer on the flexible display panel 100 maintains a relatively stable modulus, thereby avoiding film layer fracture caused by increased modulus of the film layer in the low temperature environment, and further solving the problem that the bending performance of the existing folding display screen is unstable in different temperature environments.
It is understood that the adhesive material in the fourth adhesive layer 33, the third adhesive layer 31, the second adhesive layer 23 and the first adhesive layer 22 has high sensitivity to temperature, for example, the modulus of the adhesive material increases sharply in a low temperature environment, and the modulus of the adhesive material decreases sharply in a high temperature environment. Specifically, the modulus of the adhesive material is increased in a low-temperature environment, so that the stress generated in the bending process of the flexible display panel 100 cannot be completely released by the adhesive material, thereby causing the film layer on the flexible display panel 100 to break, and further causing the appearance or display abnormality of the flexible display panel 100; and the modulus of the adhesive material is reduced in a high-temperature environment, and the adhesive force of the adhesive material is reduced, so that the flexible display panel 100 generates dislocation in the bending process to cause the interface of the film layer to be layered, and the appearance of the flexible display panel 100 is abnormal.
In order to avoid the damage caused by repeated bending or folding of the flexible display panel 100 in different temperature environments, the stability of the adhesive material needs to be ensured as much as possible, so that the adhesive material can effectively work in various temperature environments. Therefore, in the embodiment of the application, the phase change energy storage particles 40 are doped in the fourth adhesive layer 33, the third adhesive layer 31, the second adhesive layer 23 and the first adhesive layer 22, and the phase change energy storage particles 40 absorb heat in a high temperature environment, so that the temperature of the flexible display panel 100 is reduced, and the phenomenon that the modulus of a glue material is sharply reduced in the high temperature environment and the adhesion force is lost is avoided; meanwhile, the phase change energy storage particles 40 release heat in a low-temperature environment, so that the temperature of the flexible display panel 100 is increased, and the flexible display panel 100 is prevented from being failed due to the fact that the modulus of the adhesive material is sharply increased and the creep property is lost in the low-temperature environment.
Further, in order to avoid adverse effects of doping the phase change energy storage particles 40 in the glue material on the light output of the flexible display panel 100 and the adhesive property and mechanical property of the glue material, the doping amount of the phase change energy storage particles 40 needs to be controlled, for example, the doping amount of the phase change energy storage particles 40 in the fourth glue layer 33, the third glue layer 31, the second glue layer 23 and the first glue layer 22 is about 0.1wt% to 10wt%.
Optionally, in order to improve uniform dispersion of the phase change energy storage particles 40 in the fourth adhesive layer 33, the third adhesive layer 31, the second adhesive layer 23, and the first adhesive layer 22, an amount of silane coupling agent may be doped in the fourth adhesive layer 33, the third adhesive layer 31, the second adhesive layer 23, and the first adhesive layer 22 at the same time, for example, the doping amount of the silane coupling agent is 0.05wt% to 1wt%.
In an embodiment, please refer to fig. 1 to 3, and fig. 3 is a schematic cross-sectional structure diagram of a flexible display panel according to an embodiment of the present disclosure. Unlike the above embodiments, in the flexible display panel 101 of the present embodiment, at least one of the first support layer 32 and the polarizer 21 is doped with the phase change energy storage particles 40. In this embodiment, the phase change energy storage particles 40 are doped in both the first support layer 32 and the polarizer 21.
Specifically, the material of the first supporting layer 32 and the polarizer 21 may be selected from organic films such as Polyimide (Polyimide), polyethylene terephthalate (pet), triacetyl Cellulose (TAC), poly (methyl methacrylate, PMMA), and Cyclic Olefin Polymer (COP). The phase change energy storage particles 40 can be doped in these organic films.
So through the doping of phase change energy storage particle 40 in first supporting layer 32 with in the polaroid 21, make flexible display panel 101 has the automatic temperature adjustment function, and then makes flexible display panel 101 can work in relatively stable environment, makes the rete on the flexible display panel 101 maintains comparatively stable modulus to the modulus increase of rete leads to the rete to break under the avoidance of low temperature environment, and then has solved the unstable problem of current folding display screen performance of buckling in the temperature environment of difference.
Meanwhile, the phase change energy storage particles 40 are doped in the first support layer 32 and the polarizer 21, so that the fourth adhesive layer 33, the third adhesive layer 31, the second adhesive layer 23 and the first adhesive layer 22 can ensure the stability of the adhesive material, and the adhesive material can effectively work in various temperature environments. For example, the phase change energy storage particles 40 absorb heat in a high temperature environment, so that the temperature of the flexible display panel 101 is reduced, and the phenomenon that the amount of the adhesive material is sharply reduced in the high temperature environment and the adhesive force is lost is avoided; meanwhile, the phase change energy storage particles 40 release heat in a low-temperature environment, so that the temperature of the flexible display panel 101 is increased, and the flexible display panel 101 is prevented from being failed due to the fact that the modulus of the adhesive material is sharply increased in the low-temperature environment and the creep property is lost.
Further, in order to avoid adverse effects of doping the phase change energy storage particles 40 in the organic film material on the light output of the flexible display panel 101, the mechanical properties of the organic film material and the functions of the organic film material in the flexible display panel 101, the doping amount of the phase change energy storage particles 40 needs to be controlled, for example, the doping amount of the phase change energy storage particles 40 in the polarizer 21 is about 0.1wt% to 10wt%.
Optionally, in order to improve the uniform dispersibility of the phase change energy storage particles 40 in the first support layer 32 and the polarizer 21, an amount of silane coupling agent may be doped in the first support layer 32 and the polarizer 21 at the same time, for example, the amount of the silane coupling agent is 0.05wt% to 1wt%. For other descriptions, please refer to the above embodiments, which are not repeated herein.
In an embodiment, please refer to fig. 1 to 4, and fig. 4 is a schematic cross-sectional structure diagram of a flexible display panel according to an embodiment of the present disclosure. Different from the above embodiments, in the flexible display panel 102 of the present embodiment, the phase change energy storage particles 40 are doped in the first adhesive layer 22, the polarizer 21, the third adhesive layer 31, and the first support layer 32, so as to better enable the flexible display panel 102 to work in a relatively stable environment. For other descriptions, please refer to the above embodiments, which are not repeated herein.
In an embodiment, please refer to fig. 1 to 5, and fig. 5 is a schematic cross-sectional structure diagram of a flexible display panel according to an embodiment of the present disclosure. Unlike the above embodiments, in the flexible display panel 103 of the present embodiment, the first stacked layer 20 further includes a hard coating layer 25, the hard coating layer 25 is disposed on a side of the anti-reflection layer away from the flexible display substrate 10, and the hard coating layer 25 is doped with the phase change energy storage particles 40. The antireflection layer is the polarizer 21.
Optionally, the material of the hard coating layer 25 includes a silane organic substance, an acrylic-based organic-inorganic composite material, and the like, and the thickness of the hard coating layer 25 ranges from 5 micrometers to 50 micrometers. By adopting the hard coating layer 25 to replace the cover window 24, the thickness of the flexible display panel 103 can be greatly reduced, and the bending or folding of the flexible display panel 103 is facilitated.
The phase change energy storage particles 40 are uniformly dispersed in the hard coating 25, and when the flexible display panel 103 is in a higher temperature environment, the phase change energy storage particles 40 can absorb heat to reduce the temperature of the flexible display panel 103; when the flexible display panel 103 is in a lower temperature environment, the phase change energy storage particles 40 can release absorbed heat to raise the temperature of the flexible display panel 103, so that the flexible display panel 103 can work in a relatively stable environment, and a film layer on the flexible display panel 103 maintains a relatively stable modulus, thereby avoiding the film layer from being broken due to the increase of the modulus of the film layer in the low temperature environment, and further solving the problem that the bending performance of the conventional folding display screen is unstable in different temperature environments.
Meanwhile, the phase change energy storage particles 40 are uniformly dispersed in the hard coating layer 25, and due to the scattering effect of the phase change energy storage particles 40, the surface reflectivity of the flexible display panel 103 can be reduced, and anti-glare (AG) is added to the flexible display panel 103.
Optionally, in order to avoid that the doping of the phase change energy storage particles 40 in the hard coating layer 25 adversely affects the light emission of the flexible display panel 103, the doping amount of the phase change energy storage particles 40 needs to be controlled, for example, the doping amount of the phase change energy storage particles 40 in the polarizer 21 is about 0.1wt% to 10wt%.
Meanwhile, in order to improve the uniform dispersibility of the phase change energy storage particles 40 in the hard coating layer 25, an amount of silane coupling agent may be doped into the hard coating layer 25 at the same time, for example, the doped amount of the silane coupling agent is 0.05wt% to 1wt%. For other descriptions, please refer to the above embodiments, which are not repeated herein.
In an embodiment, please refer to fig. 1 to 6, and fig. 6 is a schematic cross-sectional structure diagram of a flexible display panel provided in the embodiment of the present application. Different from the foregoing embodiment, in the flexible display panel 104 of this embodiment, the antireflection layer includes a color filter 26, the color filter 26 includes a light-shielding layer 261 and a color film 262, the light-shielding layer 261 is provided with an opening, the color film 262 is disposed in the opening, wherein the light-shielding layer 261 and/or the color film 262 are doped with the phase change energy storage particles 40, and the embodiment takes the case that the color film 262 is doped with the phase change energy storage particles 40 as an example.
In this embodiment, the color filter 26 is used as an anti-reflection layer, so that the transmittance of the flexible display panel 104 can be improved, and the power consumption of the flexible display panel 104 can be reduced. Meanwhile, the color filter 26 is thinner than the polarizer 21, for example, the thickness of the color filter 26 ranges from 2 micrometers to 10 micrometers, so that the thickness of the flexible display panel 104 can be reduced, and the flexible display panel 104 can be bent or folded more easily. In addition, the hard coat layer 25 is disposed on the color filter 26 instead of the cover window 24, so that the thickness of the flexible display panel 104 can be further reduced, for example, the total thickness of the color filter 26 and the hard coat layer 25 is less than 60 μm.
The phase change energy storage particles 40 are doped in the color film 262 and the hard coating 25, so that the flexible display panel 104 can also have an automatic temperature adjustment function, and further the flexible display panel 104 can work in a relatively stable environment, so that a film layer on the flexible display panel 104 maintains a relatively stable modulus, and thus the film layer is prevented from being broken due to the increase of the modulus of the film layer in a low-temperature environment. Meanwhile, the phase change energy storage particles 40 in the color film 262 can also be used as scattering particles to scatter light passing through the color film 262, so that the extraction efficiency of the light is improved.
Similarly, in order to avoid adverse effects on the light emission of the flexible display panel 104 caused by doping the phase change energy storage particles 40 in the color film 262, the doping amount of the phase change energy storage particles 40 needs to be controlled, for example, the doping amount of the phase change energy storage particles 40 in the color film 262 is about 0.1wt% to 10wt%.
In addition, in order to improve the uniform dispersibility of the phase change energy storage particles 40 in the color film 262, a certain amount of silane coupling agent may be doped in the color film 262 at the same time, for example, the doping amount of the silane coupling agent is 0.05wt% to 1wt%. For other descriptions, please refer to the above embodiments, which are not repeated herein.
Based on the same inventive concept, the embodiment of the present application further provides an electronic device, which includes a housing and a flexible display panel as in one of the foregoing embodiments, and the flexible display panel is assembled in the housing. The electronic device comprises mobile phones, flat panels, televisions and other electronic equipment.
According to the above embodiments:
the application provides an among flexible display panel and electron device, flexible display panel is including setting up first stromatolite and the second stromatolite in the relative both sides of flexible display substrate, first stromatolite and/or at least one deck in the second stromatolite is doped with phase change energy storage particle, phase change energy storage particle includes phase change energy storage material and parcel phase change energy storage material's protection film, phase change energy storage particle relies on phase change energy storage material to absorb the heat under high temperature environment to reduce flexible display panel's temperature, and rely on phase change energy storage material to release the heat under low temperature environment, thereby improve flexible display panel's temperature, so can make flexible display panel work in relatively stable temperature environment, make the rete on the flexible display panel maintain comparatively stable modulus, thereby avoid the modulus increase of rete to lead to the rete fracture under low temperature environment, and then solved current folding display screen problem that the performance of buckling in the temperature environment of difference unstable.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
The above embodiments of the present application are described in detail, and specific examples are applied in the present application to explain the principles and implementations of the present application, and the description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A flexible display panel, comprising:
a flexible display substrate having a light exit side;
the first lamination is arranged on the light emergent side of the flexible display substrate;
the second lamination is arranged on one side, far away from the first lamination, of the flexible display substrate;
at least one layer of the first lamination and/or the second lamination is doped with phase change energy storage particles, and the phase change energy storage particles comprise a phase change energy storage material and a protective film wrapping the phase change energy storage material.
2. The flexible display panel of claim 1, wherein the first stack of layers comprises an anti-reflective layer doped with the phase change energy storage particles.
3. The flexible display panel of claim 2, wherein the anti-reflective layer comprises:
the first adhesive layer is arranged on the light emergent side of the flexible display substrate;
the polaroid is attached to the flexible display substrate through the first adhesive layer;
at least one layer of the first adhesive layer and the polaroid is doped with the phase change energy storage particles.
4. The flexible display panel according to claim 2, wherein the antireflection layer comprises a color filter, the color filter comprises a light-shielding layer and a color film, the light-shielding layer is provided with an opening, the color film is arranged in the opening, and the light-shielding layer and/or the color film are doped with the phase change energy storage particles.
5. The flexible display panel of claim 2, wherein the first laminate further comprises:
the second adhesive layer is arranged on one side of the anti-reflection layer, which is far away from the flexible display substrate;
the covering window is attached to the anti-reflection layer through the second adhesive layer;
the second adhesive layer is doped with the phase change energy storage particles.
6. The flexible display panel of claim 2, wherein the first stack of layers further comprises a hard coating layer disposed on a side of the anti-reflective layer remote from the flexible display substrate, the hard coating layer being doped with the phase change energy storage particles.
7. The flexible display panel of claim 1, wherein the second laminate layer comprises:
the third adhesive layer is arranged on one side, far away from the first lamination, of the flexible display substrate;
the first supporting layer is attached to the flexible display substrate through the third adhesive layer;
wherein at least one of the third adhesive layer and the first support layer is doped with the phase change energy storage particles.
8. The flexible display panel of claim 7, wherein the second laminate further comprises:
the fourth adhesive layer is arranged on one side, away from the flexible display substrate, of the first supporting layer;
the second supporting layer is attached to the first supporting layer through the fourth adhesive layer;
and the fourth viscose layer is doped with the phase change energy storage particles.
9. The flexible display panel according to any one of claims 1 to 8, wherein the phase change energy storage particles have a particle size in a range of 20 nm to 500 nm.
10. An electronic device characterized by comprising a housing and the flexible display panel according to any one of claims 1 to 9, the flexible display panel being fitted within the housing.
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| CN202210916505.7A CN115331549A (en) | 2022-08-01 | 2022-08-01 | Flexible display panel and electronic device |
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