CN112216206A - Glass cover plate, flexible display screen and display device - Google Patents
Glass cover plate, flexible display screen and display device Download PDFInfo
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- CN112216206A CN112216206A CN201910613161.0A CN201910613161A CN112216206A CN 112216206 A CN112216206 A CN 112216206A CN 201910613161 A CN201910613161 A CN 201910613161A CN 112216206 A CN112216206 A CN 112216206A
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- cover plate
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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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Abstract
The embodiment of the disclosure relates to a glass cover plate, a flexible display screen and a display device. The glass cover plate is suitable for a flexible display screen and comprises a glass substrate and a self-healing functional layer, wherein the glass substrate can be bent, and the self-healing functional layer is coated on the surface of the glass substrate. In the embodiment of the disclosure, on one hand, the bendable glass cover plate is used for replacing the existing polymer substrate flexible cover plate, so that the bending performance of the flexible cover plate is maintained, and the rigidity of the cover plate is enhanced, thereby improving the protection of the display screen; on the other hand, the surface of the glass cover plate is coated with the self-healing functional layer, when the glass cover plate is scratched, the self-healing functional layer can self-heal, and the service life of the cover plate is prolonged; on the other hand, the surface of the glass cover plate is coated with the self-healing functional layer, when the glass cover plate is cracked due to large impact, the glass cannot generate fragments to splash and hurt people, and the use safety of the glass cover plate, the flexible display screen and the display device is improved.
Description
Technical Field
The embodiment of the disclosure relates to the technical field of display, in particular to a glass cover plate, a flexible display screen and a display device.
Background
In the conventional flexible display device, a high molecular polymer material is often used as a substrate of the flexible cover plate. The high polymer base material has low strength and low surface hardness, is easy to scratch, and needs to be subjected to re-hardening treatment on the surface of the high polymer base material in order to improve the surface performance of the high polymer base material, namely a layer of hardened coating is coated, and the coating is cured or hardened under a certain temperature or illumination condition to obtain the hardened flexible cover plate. The flexible apron after the sclerosis treatment also produces the crackle easily at the in-process of buckling, and the sclerosis layer on the flexible apron appears damaged easily, and is damaged when the sclerosis layer, and original flexible apron substrate suffers external action and further destroyed promptly easily.
Accordingly, there is a need to ameliorate one or more of the problems with the related art solutions described above.
It is noted that this section is intended to provide a background or context to the embodiments of the disclosure that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.
Disclosure of Invention
An object of the embodiments of the present disclosure is to provide a glass cover plate, a flexible display screen, and a display device, thereby overcoming, at least to some extent, one or more of the problems due to the limitations and disadvantages of the related art.
According to a first aspect of the embodiments of the present disclosure, there is provided a glass cover plate suitable for a flexible display screen, including:
a glass substrate, the glass substrate being bendable;
and the self-healing functional layer is coated on the surface of the glass substrate.
In one embodiment, the self-healing functional layer is applied to the surface of the glass substrate facing away from the side of the flexible display screen where the functional layer is displayed.
In one embodiment, the thickness of the self-healing functional layer is 5-100 μm, and in one embodiment, the thickness of the self-healing functional layer is greater than or equal to 5 μm and less than 50 μm.
In one embodiment, the glass substrate has a flexural strength of not less than 500 MPa.
In one embodiment, the thickness of the glass substrate is 30 to 200 μm.
In one embodiment, the self-healing functional layer comprises a transparent polymeric material that self-heals with hydrogen bonds or with nitroxide radicals.
In one embodiment, the self-healing functional layer comprises a transparent polymeric material that self-heals using a diels-alder reaction.
According to a second aspect of the embodiments of the present disclosure, there is provided a flexible display screen including:
a display functional layer; and
the glass cover plate of the above embodiment is attached to the display function layer by an optical adhesive.
According to a second aspect of the embodiments of the present disclosure, there is provided a display device including the flexible display screen according to the above embodiments.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
in the embodiment of the disclosure, by the glass cover plate, the flexible display screen and the display device, on one hand, the bendable glass cover plate is used for replacing the existing polymer substrate flexible cover plate, so that the bending performance of the flexible cover plate is maintained, and meanwhile, the rigidity of the cover plate is enhanced, and the protection of the display screen is further improved; on the other hand, the surface of the glass cover plate is coated with the self-healing functional layer, when the glass cover plate is scratched, the self-healing functional layer can self-heal, and the service life of the cover plate is prolonged; on the other hand, the surface of the glass cover plate is coated with the self-healing functional layer, when the glass cover plate is cracked due to large impact, the glass cannot generate fragments to splash and hurt people, and the use safety of the glass cover plate, the flexible display screen and the display device is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.
FIG. 1 shows a schematic view of a glass cover plate in an exemplary embodiment of the present disclosure;
fig. 2 shows a schematic view of a glass cover plate in an exemplary embodiment of the present disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Furthermore, the drawings are merely schematic illustrations of embodiments of the disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.
In the exemplary embodiment, a glass cover plate suitable for a flexible display screen is provided. Referring to fig. 1, the glass cover plate may include a glass substrate 1 and a self-healing functional layer 2, wherein the glass substrate 1 may be bent, and the self-healing functional layer 2 is applied to a surface of the glass substrate 1.
Through the glass cover plate, on one hand, the bendable glass cover plate is used for replacing the existing polymer substrate flexible cover plate, the bending performance of the flexible cover plate is kept, and meanwhile, the rigidity of the cover plate is enhanced, so that the protection of a display screen is improved; on the other hand, the surface of the glass cover plate is coated with the self-healing functional layer, when the glass cover plate is scratched, the self-healing functional layer can self-heal, and the service life of the cover plate is prolonged; on the other hand, the surface of the glass cover plate is coated with the self-healing functional layer, when the glass cover plate is cracked due to large impact, the glass cannot generate fragments to splash and hurt people, and the use safety of the glass cover plate and the display screen is improved.
Next, each part of the above-described glass cover plate in the present exemplary embodiment will be described in more detail with reference to fig. 1 to 2.
The cover plate is generally used for covering a display functional layer of the display screen, and if the display functional layer of the display screen is covered with a layer of touch screen, the cover plate can also be used for covering the touch screen of the display screen so as to protect the display screen from being damaged by the external environment. The cover plate in the embodiment of the present disclosure is a glass cover plate, and the glass cover plate may include a glass substrate 1 and a self-healing functional layer 2 coated on a surface of the glass substrate 1. The glass base 1 can be bent, the existing high polymer substrate is replaced by the bendable glass substrate, and the bending performance of the existing flexible cover plate can be kept while the hardness of the cover plate is improved. In a specific example, referring to fig. 2, the self-healing functional layer 2 may be applied to a surface of the glass substrate 1 facing away from the side of the flexible display screen on which the functional layer 3 is displayed; in another specific example, the self-healing functional layer 2 may be applied to both surfaces of the glass substrate 1, that is, a surface of the glass substrate 1 facing away from the side of the flexible display screen on which the functional layer 3 is displayed and a surface of the glass substrate 1 facing the side of the flexible display screen on which the functional layer 3 is displayed, for protecting the glass substrate 1 and the display screen from the external environment.
In one embodiment, in order to improve the bending property of the glass cover plate, the flexural strength of the glass substrate 1 may be not less than 500 Mpa. In one embodiment, the thickness of the glass substrate 1 may be 30 to 200 μm. The thickness of the glass substrate 1 is not too thick, and too thick can cause the thickness of the glass cover plate to be too thick, and further cause the thickness of the flexible display screen to be too thick; the thickness of the glass substrate 1 is not too thin, which can affect the bending performance of the glass cover plate with large bending radius and can also affect the protection function of the glass cover plate on the flexible display screen.
In one embodiment, the thickness of the self-healing functional layer 2 may be 5 to 100 μm; further, the thickness of the self-healing functional layer may be greater than or equal to 5 μm and less than 50 μm. The thickness of the self-healing functional layer 2 is not too thick, and too thick can cause the thickness of the glass cover plate to be too thick, so that the thickness of the flexible display screen is too thick; the thickness of the self-healing functional layer 2 is not too thin, and the self-healing function of the self-healing functional layer 2 can be influenced by the thinness, so that the protection function of the self-healing functional layer 2 on the glass substrate and the display screen is further influenced.
In one embodiment, in order to ensure the display function of the flexible display screen, the self-healing functional layer 2 may transmit light. The self-healing functional layer 2 may include a self-healing material based on a reversible reaction, and for example, may include a transparent polymer material self-healing using a hydrogen bond, a nitroxide radical, or a diels-alder reaction, but is not limited thereto. In one specific example, the material that self-heals with hydrogen bonding, which may be, for example, a 2-ureido-4-pyrimidine (UPy) -terminated polystyrene-poly (n-butyl acrylate) block copolymer, self-heals with hydrogen bonding between terminal 2-ureido-4-pyrimidyl groups. In one specific example, the material self-healing with nitroxide radicals may be, for example, an alkoxy polyurethane, and self-healing is achieved with the nitroxide radical of an alkoxy group and the oxygen radical of an aminodiglycidyl ether.
In an embodiment, the flexible display screen includes the glass cover plate and the display functional layer 3 described in the above embodiment, wherein the glass cover plate is attached to the display functional layer 3 through an optical cement, the optical cement may be an OCA optical cement, which may specifically refer to the prior art and is not described herein again. In one embodiment, the flexible display screen may further include a touch screen, and the touch screen may be attached between the flexible cover plate and the display function layer 3 through the OCA optical cement.
There is also provided in this example embodiment a display device comprising the flexible display screen of the above example.
The flexible display screen and the display device both comprise the glass cover plate. Through the glass cover plate, the flexible display screen and the display device, on one hand, the bendable glass cover plate is used for replacing the existing polymer substrate flexible cover plate, the bending performance of the flexible cover plate is kept, and meanwhile, the rigidity of the cover plate is enhanced, so that the protection of the display screen is improved; on the other hand, the surface of the glass cover plate is coated with the self-healing functional layer, when the glass cover plate is scratched, the self-healing functional layer can self-heal, and the service life of the cover plate is prolonged; on the other hand, the surface of the glass cover plate is coated with the self-healing functional layer, when the glass cover plate is cracked due to large impact, the glass cannot generate fragments to splash and hurt people, and the use safety of the glass cover plate, the flexible display screen and the display device is improved.
It is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like in the foregoing description are used for indicating or indicating the orientation or positional relationship illustrated in the drawings, merely for the convenience of describing the disclosed embodiments and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and therefore should not be considered limiting of the disclosed embodiments.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present disclosure, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present disclosure, unless otherwise specifically stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.
In the embodiments of the present disclosure, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Claims (10)
1. A glass cover plate suitable for a flexible display screen, comprising:
a glass substrate, the glass substrate being bendable;
and the self-healing functional layer is coated on the surface of the glass substrate.
2. The glass cover sheet according to claim 1, wherein the self-healing functional layer is applied to a surface of the glass substrate facing away from a side of the flexible display screen on which the functional layer is displayed.
3. The glass cover plate according to claim 1, wherein the self-healing functional layer has a thickness of 5 to 100 μm.
4. The glass cover plate according to claim 3, wherein the self-healing functional layer has a thickness of less than 50 μm.
5. The glass cover sheet according to claim 1, wherein the glass substrate has a flexural strength of not less than 500 Mpa.
6. The glass cover plate according to claim 5, wherein the glass substrate has a thickness of 30 to 200 μm.
7. The glass cover plate according to claim 1, wherein the self-healing functional layer comprises a transparent polymer material that self-heals with hydrogen bonds or with nitroxide radicals.
8. The glass cover plate according to claim 1, wherein the self-healing functional layer comprises a transparent polymer material that self-heals using a diels-alder reaction.
9. A flexible display screen, comprising:
a display functional layer; and
the glass cover plate according to any one of claims 1 to 8, which is attached to the display function layer by an optical adhesive.
10. A display device characterized by comprising the flexible display screen according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910613161.0A CN112216206A (en) | 2019-07-09 | 2019-07-09 | Glass cover plate, flexible display screen and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910613161.0A CN112216206A (en) | 2019-07-09 | 2019-07-09 | Glass cover plate, flexible display screen and display device |
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| CN112216206A true CN112216206A (en) | 2021-01-12 |
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| CN201910613161.0A Pending CN112216206A (en) | 2019-07-09 | 2019-07-09 | Glass cover plate, flexible display screen and display device |
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Cited By (2)
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| CN114783281A (en) * | 2022-02-28 | 2022-07-22 | 深圳市华星光电半导体显示技术有限公司 | Display panel and manufacturing method thereof |
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