CN114596786A - Display cover plate, display device and preparation method - Google Patents
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- CN114596786A CN114596786A CN202210283295.2A CN202210283295A CN114596786A CN 114596786 A CN114596786 A CN 114596786A CN 202210283295 A CN202210283295 A CN 202210283295A CN 114596786 A CN114596786 A CN 114596786A
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- G—PHYSICS
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- 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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- 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
- G09F9/33—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
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- G—PHYSICS
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- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
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- 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
- G09F9/35—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 liquid crystals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The application discloses display cover plate, display device and preparation method relates to the technical field of display, and can improve rigidity of the display cover plate applied to a flexible display device so as to improve impact resistance and avoid the problems that a display panel generates display broken bright spots or even cracks and the like caused by external impact on the display device. A display cover, comprising: a first material layer; a second material layer; a third material layer disposed between the first material layer and the third material layer, the first material layer and the third material layer each having a stiffness greater than a stiffness of the second material layer; in the case that the display cover plate is used for fixedly connecting a display panel, the first material layer is close to the display panel relative to the third material layer, or the third material layer is close to the display panel relative to the first material layer.
Description
Technical Field
The application relates to the technical field of display, in particular to a display cover plate, a display device and a preparation method.
Background
With the development of display technology, flexible display devices are favored by consumers due to their ability to be bent or folded. The display cover plate for protecting the display panel in the flexible display device also needs to have bending or folding performance, however, due to the limitation of bending or folding performance, compared with the cover plate used in the traditional rigid display device, the impact resistance of the display cover plate of the flexible display device is poorer, when the display device is impacted by external impact, the display panel is easy to generate broken bright spots, even cracks and other problems, and the service life of the display panel is further influenced.
Disclosure of Invention
The embodiment of the application provides a display cover plate, a display device and a preparation method, which can improve the rigidity of the display cover plate applied to a flexible display device so as to improve the impact resistance and avoid the problems that the display device is subjected to external impact to cause a display panel to generate display broken bright spots or even cracks and the like.
In a first aspect of embodiments of the present application, a display cover plate is provided, including:
a first material layer;
a second material layer;
a third material layer disposed between the first material layer and the third material layer, the first material layer and the third material layer each having a stiffness greater than a stiffness of the second material layer;
in the case that the display cover plate is used for fixedly connecting a display panel, the first material layer is close to the display panel relative to the third material layer, or the third material layer is close to the display panel relative to the first material layer.
In some embodiments, the third material layer is adjacent to the display panel relative to the first material layer in the case that the first material layer has a stiffness greater than a stiffness of the third material layer.
In some embodiments, the stiffness of the first material layer ranges from 6-7 GPa; and/or the presence of a gas in the gas,
the rigidity of the third material layer ranges from 3 GPa to 5 GPa; and/or the presence of a gas in the gas,
the rigidity of the second material layer ranges from 40MPa to 1 GPa.
In some embodiments, the material from which the first material layer is made comprises at least one of polyimide, a fibrous material, a polyethylene film, polyethylene terephthalate, and nano silver ions; and/or the presence of a gas in the gas,
the material for preparing the third material layer comprises at least one of polyimide, fiber material, polyethylene film, polyethylene terephthalate and nano silver ions; and/or the presence of a gas in the gas,
the material for preparing the second material layer comprises at least one of thermoplastic polyurethane and rubber.
In some embodiments, the second material layer is a fiber weave structure, an elastic pillar structure, or a full face elastic structure; and/or the presence of a gas in the gas,
the third material layer is of a honeycomb sandwich structure or an elastic-plastic structure.
In some embodiments, the first material layer comprises polyimide and a fibrous material; and/or the presence of a gas in the gas,
the second material layer comprises thermoplastic polyurethane and rubber; and/or the presence of a gas in the gas,
the third material layer comprises a polyethylene film; or the like, or, alternatively,
the third material layer comprises nano silver ions and a polyethylene film.
In some embodiments, the thickness of the second material layer is greater than the thickness of the first material layer, and/or the thickness of the third material layer is greater than the thickness of the first material layer.
In some embodiments, the first material layer has a thickness in the range of 50-100 μm;
the thickness of the second material layer ranges from 20 to 200 μm;
the thickness of the third material layer ranges from 20 to 200 μm.
In some embodiments, the first material layer and the second material layer are connected by an optical glue; and/or
The second material layer is connected with the third material layer through optical cement.
In a second aspect of the embodiments of the present application, there is provided a display device including:
the display cover as described in the first aspect.
In some embodiments, the display device further comprises:
the display panel is fixedly connected with the display cover plate;
the third material layer is disposed between the display panel and the second material layer in a case where a stiffness of the first material layer is greater than a stiffness of the third material layer.
In a third aspect of the embodiments of the present application, a method for manufacturing a display cover plate is provided, including:
preparing a first material layer, a second material layer and a third material layer respectively so that the second material layer is arranged between the first material layer and the third material layer, wherein the rigidity of the first material layer and the rigidity of the third material layer are both larger than that of the second material layer.
In some embodiments, the first material layer, the second material layer, and the third material layer are all prepared by printing; or the like, or, alternatively,
the first material layer, the second material layer and the third material layer are all prepared through a coating mode, wherein the fiber materials in at least one of the first material layer, the second material layer and the third material layer penetrate through at least one other material layer.
In a fourth aspect of the embodiments of the present application, there is provided a method for manufacturing a display device, including:
preparing a display panel;
preparing a first material layer, a second material layer and a third material layer on the display surface of the display panel respectively so that the second material layer is arranged between the first material layer and the third material layer, wherein the rigidity of the first material layer and the rigidity of the third material layer are both greater than the rigidity of the second material layer.
In a fifth aspect of the embodiments of the present application, there is provided a method for manufacturing a display device, including:
preparing the display cover plate by using the preparation method of the display cover plate according to the third aspect;
and fixedly connecting the display cover plate with the display panel.
According to the display cover plate, the display device and the preparation method, the display cover plate with the three material layers is prepared, the possibility of thickening can be achieved on the whole thickness of the display cover plate, and the impact resistance can be improved due to the increase of the thickness. In addition, the rigidity of the first material layer and the rigidity of the third material layer are both larger than that of the second material layer, the rigidity of the first material layer and the rigidity of the third material layer on two sides of the second material layer are larger, any one of the first material layer and the third material layer can be used as a material layer for directly resisting external impact in the display device, the rigidity is larger, impact can be well resisted, and a good effect of blocking the external impact is achieved. The rigidity of the second material layer is small, deformation transmitted by the first material layer or the third material layer can be buffered, impact force is absorbed, and the display cover plate and the display panel are protected. The third material layer or the first material layer is correspondingly close to the display panel, the effect of a protective barrier for blocking impact at the last time can be achieved, the impact force transmitted by the second material layer can be blocked due to higher rigidity, and the display panel is further protected from impact damage. Therefore, the display cover plate provided by the embodiment of the application can improve the overall rigidity of the display cover plate, protect the display panel and ensure that the service life of the display panel cannot be influenced by external impact.
Drawings
Fig. 1 is a schematic structural diagram of a display cover plate according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a display device according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of another display device provided in an embodiment of the present application;
fig. 4 is a schematic flowchart of a method for manufacturing a display device according to an embodiment of the present disclosure;
fig. 5 is a schematic flowchart of another method for manufacturing a display device according to an embodiment of the present disclosure.
Detailed Description
In order to better understand the technical solutions provided by the embodiments of the present specification, the technical solutions of the embodiments of the present specification are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present specification are detailed descriptions of the technical solutions of the embodiments of the present specification, and are not limitations on the technical solutions of the embodiments of the present specification, and the technical features in the embodiments and examples of the present specification may be combined with each other without conflict.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. The term "two or more" includes the case of two or more.
With the development of display technology, flexible display devices are favored by consumers due to their ability to be bent or folded. The display cover plate for protecting the display panel in the flexible display device also needs to have bending or folding performance, however, due to the limitation of bending or folding performance, compared with the cover plate used in the traditional rigid display device, the impact resistance of the display cover plate of the flexible display device is poorer, when the display device is impacted by external impact, the display panel is easy to generate broken bright spots, even cracks and other problems, and the service life of the display panel is further influenced.
In view of this, embodiments of the present application provide a display cover plate, a display device, and a manufacturing method thereof, which can improve rigidity of a display cover plate applied to a flexible display device to improve impact resistance, and avoid the display device from being subjected to external impact, which causes a display panel to generate broken bright spots and even cracks.
In a first aspect of an embodiment of the present application, a display cover plate is provided, and fig. 1 is a schematic structural diagram of the display cover plate provided in the embodiment of the present application. As shown in fig. 1, the display cover plate provided in the embodiment of the present application includes: the material comprises a first material layer 100, a second material layer 200 and a third material layer 300, wherein the second material layer 200 is arranged between the first material layer 100 and the third material layer 300, and the rigidity of the first material layer 100 and the rigidity of the third material layer 300 are both larger than that of the second material layer 200; in the case that the display cover plate is used to fixedly connect the display panel, the first material layer is close to the display panel relative to the third material layer, or the third material layer is close to the display panel relative to the first material layer. The display cover plate provided by the embodiment of the application can be applied to a flexible display device, and not only has flexibility but also has impact resistance. For example, the impact resistance of the display cover plate provided in the embodiment of the present application may be tested and verified through a pen-down test and a ball-down test, which are commonly used, and the present application is not particularly limited. It should be noted that, in the case that the display cover is applied to the display device to fixedly connect the display panel, the first material layer 100 may be configured to be disposed close to the display panel, and the third material layer 300 is disposed far away from the display panel; alternatively, the third material layer 300 is disposed close to the display panel, and the first material layer 100 is disposed far from the display panel, which is not particularly limited in the embodiments of the present application.
In the prior art, a display cover plate applied to a flexible display device usually has only one material layer, or has two material layers, and the rigidity of the two material layers is equivalent to that of one material layer or the rigidity of one material layer is greater than that of the other material layer. The display cover plate with only one material layer has limited impact resistance, and although the impact resistance of the display cover plate with two material layers is improved compared with that of the display cover plate with one material layer, the display cover plate with two material layers still cannot achieve high impact resistance, cannot protect the display panel from being damaged by external impact in the display device, and ensures the service life of the display panel in the display device. In addition, the existing display cover plate is one or two material layers, the whole thickness of the display cover plate is limited by the preparation process of the material layers and is difficult to thicken, and the thinner the thickness of the display cover plate is, the weaker the impact resistance is.
To the problem that prior art exists, the display cover plate that this application embodiment provided through setting up three-layer material layer, can have the bodiness possibility on the whole thickness of display cover plate, and the increase of thickness can improve shock resistance. In addition, the first material layer 100 and the third material layer 300 have a stiffness greater than that of the second material layer 200, the first material layer 100 and the third material layer 300 on both sides of the second material layer 200 have a stiffness greater than that of the second material layer 200, and any one of the first material layer 100 and the third material layer 300 can be used as a material layer for directly resisting external impact in a display device, so that the first material layer 100 and the third material layer 300 have a greater stiffness, can better resist the external impact, and have a better effect of blocking the external impact. The second material layer 200 has a low rigidity, and can buffer deformation transmitted by the first material layer 100 or the third material layer 300, so as to absorb impact force, thereby protecting the display cover plate and the display panel. The third material layer 300 or the first material layer 100 is close to the display panel, and can play a role of a protective barrier for blocking impact at the last time, so that the impact force transmitted by the second material layer 200 can be blocked due to higher rigidity, and the display panel is further protected from impact damage. Therefore, the display cover plate provided by the embodiment of the application can improve the overall rigidity of the display cover plate, protect the display panel and ensure that the service life of the display panel cannot be influenced by external impact.
In some embodiments, the display cover is configured to be fixedly coupled to the display panel when the first material layer has a stiffness greater than a stiffness of a third material layer that is adjacent to the display panel relative to the first material layer.
For example, in the case that the display cover is fixedly connected to the display panel, the display cover is generally disposed opposite to the display panel and may be fixedly connected together by an optical adhesive. In the case where the stiffness of the first material layer is the same as the stiffness of the third material layer, either the first material layer or the third material layer may be close to the display panel.
Illustratively, in the case where the stiffness of the first material layer is greater than the stiffness of the third material layer, the third material layer is closer to the display panel and the first material layer is farther from the display panel. The rigidity of the first material layer is the biggest, directly meets external impact and can play the effect of better separation impact, and the rigidity second on third material layer is big, can regard as display panel's last separation barrier, protects display panel, and the rigidity of second material layer is minimum, can cushion the deformation that the impact force that first material layer transmission got off formed, further separation external impact.
In some embodiments, the stiffness of the first material layer is in the range of 6-7GPa, the stiffness of the third material layer is in the range of 3-5GPa, and the stiffness of the second material layer is in the range of 40MPa-1 GPa.
In some embodiments, the thickness of the second material layer is greater than the thickness of the first material layer, and/or the thickness of the third material layer is greater than the thickness of the first material layer. Because the rigidity of the first material layer is larger, the thickness of the first material layer can be smaller properly, the thicknesses of the second material layer and the third material layer are larger properly, the whole thickening of the display cover plate can be realized, and the effect of blocking external impact can be further improved due to the increase of the thicknesses.
Illustratively, the thickness of the first material layer is in the range of 50-100 μm; the thickness of the second material layer is in the range of 20-200 μm; the thickness of the third material layer is in the range of 20-200 μm.
Illustratively, table 1 is data showing pen-down and ball-down experiments corresponding to stiffness and thickness of different material layers of the cover plate. In table 1, E represents a stiffness value, t represents a thickness value, and the data corresponding to the pen-down performance and the ball-down performance is the falling height of the display panel showing a broken bright point.
TABLE 1
In some embodiments, the material from which the first material layer is made comprises at least one of polyimide, a fibrous material, a polyethylene film, polyethylene terephthalate, and nano silver ions. The fiber material may include aramid, spandex, glass fiber, polyamide 6, and the like. The material for preparing the third material layer comprises at least one of polyimide, fiber material, polyethylene film, polyethylene terephthalate and nano silver ions. The material from which the second material layer is made comprises at least one of thermoplastic polyurethane and rubber.
Illustratively, table 2 illustrates material compositions corresponding to layers of material of different stiffness.
TABLE 2
The puncture-resistant polyethylene film is a polyethylene film with higher rigidity and higher puncture resistance; the high-elasticity polymer is a polymer with higher elasticity and can be made of various materials, and the rubber is also a high-elasticity polymer; aramid and aramid fibers can be considered as one material.
The materials listed in the examples of the present application are illustrative only and not intended to be specific limitations of the present application.
In some embodiments, the second material layer is a fiber weave structure, an elastic pillar structure, or a full face elastic structure; and/or the third material layer is of a honeycomb sandwich structure or an elastic-plastic structure. The fiber weaving structure, the elastic upright post structure and the whole elastic structure have good elasticity, and can play a better role in elastic buffering. The honeycomb sandwich structure and the elastic-plastic structure have both elastic performance and rigidity performance, and impact force can be better blocked. Illustratively, the first material layer includes polyimide and fiber material, the second material layer includes thermoplastic polyurethane and rubber, and the third material layer includes nano silver ions and polyethylene film, or the third material layer includes polyethylene film. The doping of the nano silver ions can enhance the elasticity of the material. The first material layer can be a high-rigidity puncture-resistant film, wherein the puncture-resistant film can be formed by combining polyimide and a glass fiber structure, and is mainly used for resisting external impact. The second material layer can be as buffering inlayer, and the second material layer can be cotton yarn structure, elasticity stand structure or whole face nature elastic construction that the fibre was woven, and the external impact force of mainly used absorption first material layer transmission plays the cushioning effect. The third material layer can be used as an impact-resistant inner layer, the third material layer can be a polyethylene film added with nano silver ions, and the third material layer can be a honeycomb sandwich structure.
In some embodiments, the first material layer and the second material layer are connected by an optical glue, and the second material layer and the third material layer are connected by an optical glue. The optical cement can play a role in film layer bonding, and the optical cement generally has better light transmission and cannot influence the light transmission performance of the display panel. The optical cement can also increase the thickness of the display cover plate, and can resist larger external impact force. Illustratively, the optical glue has a thickness in the range of 25-100 μm. The first material layer and the second material layer may also be fixedly connected in other manners, and the second material layer and the third material layer may also be fixedly connected in other manners, which is not specifically limited in the embodiments of the present application.
In a second aspect of the embodiments of the present application, a display device is provided, and fig. 2 is a schematic structural diagram of the display device provided in the embodiments of the present application. As shown in fig. 2, a display device provided in an embodiment of the present application includes: the display cover as described in the first aspect. Illustratively, the display device further includes a display panel 400, and the display panel 400 is fixedly connected to the first material layer 100 of the display cover plate in the display device shown in fig. 2. The display panel may be a liquid crystal display panel, an organic light emitting display panel, or other types of display panels, and the present application is not particularly limited. The display device may be a smart phone, a tablet computer, a notebook computer, a television, or other displays, and the embodiments of the present application are not particularly limited.
The display device that this application embodiment provided, through showing the apron through setting up three-layer material layer, can have the bodiness possibility on showing the whole thickness of apron, the increase of thickness can improve shock resistance. In addition, the rigidity of the first material layer 100 and the third material layer 300 is greater than that of the second material layer 200, the rigidity of the first material layer 100 and the third material layer 300 on two sides of the second material layer 200 is greater, and any one of the first material layer 100 and the third material layer 300 can be used as a material layer for directly resisting external impact in a display device, so that the greater rigidity can better resist the impact, and the better effect of blocking the external impact is achieved. The second material layer 200 has a low rigidity, and can buffer deformation transmitted by the first material layer 100 or the third material layer 300, so as to absorb impact force, thereby protecting the display cover plate and the display panel. The third material layer 300 or the first material layer 100 is close to the display panel 400, and can play a role of a protective barrier for blocking impact at the last time, so that the impact force transmitted by the second material layer 200 can be blocked by the higher rigidity, and the display panel 400 is further protected from impact damage. Therefore, the display cover plate provided by the embodiment of the application can improve the overall rigidity of the display cover plate, protect the display panel 400 and ensure that the service life of the display panel 400 cannot be influenced by external impact.
In some embodiments, fig. 3 is a schematic structural diagram of another display device provided in an example of the present application. As shown in fig. 3, the display device provided in the embodiment of the present application further includes: the display panel 400, the display panel 400 is fixedly connected with the display cover plate. In the case that the rigidity of the first material layer 100 of the display cover plate is greater than the rigidity of the third material layer 300, the third material layer 300 is disposed between the display panel 400 and the second material layer 200, that is, the display panel 400 and the third material layer 300 are fixedly connected. The display panel 400 and the display cover plate may be fixedly connected by an optical adhesive, and the embodiment of the present application is not particularly limited.
The display device that the embodiment of the application provided, the rigidity of the first material layer 100 of demonstration apron is the biggest, directly meet external impact and can play the effect of better separation impact, the rigidity second of third material layer 300 is big, can regard as display panel 400's last separation barrier, the impact force that separation second material layer 200 transmitted down, protection display panel 400, the rigidity of second material layer 200 is minimum, can cushion the deformation that the impact force that first material layer 100 transmitted down formed, absorb the impact force, protection display panel 400.
In a third aspect of the embodiments of the present application, a method for manufacturing a display cover plate is provided, where the method for manufacturing a display cover plate includes:
and respectively preparing a first material layer, a second material layer and a third material layer so as to enable the second material layer to be arranged between the first material layer and the third material layer, wherein the rigidity of the first material layer and the rigidity of the third material layer are both greater than that of the second material layer. It should be noted that the preparation sequence may be to sequentially prepare the first material layer, the second material layer, and the third material layer, or to sequentially prepare the third material layer, the second material layer, and the first material layer, and the application is not particularly limited.
According to the preparation method of the display cover plate, the display cover plate is obtained by preparing the three material layers, the possibility of thickening can be achieved on the whole thickness of the display cover plate, and the impact resistance can be improved by increasing the thickness. In addition, the rigidity of the first material layer 100 and the third material layer 300 is greater than that of the second material layer 200, the rigidity of the first material layer 100 and the third material layer 300 on two sides of the second material layer 200 is greater, and any one of the first material layer 100 and the third material layer 300 can be used as a material layer for directly resisting external impact in a display device, so that the greater rigidity can better resist the impact, and the better effect of blocking the external impact is achieved. The second material layer 200 has a low rigidity, and can buffer deformation transmitted by the first material layer 100 or the third material layer 300, so as to absorb impact force, thereby protecting the display cover plate and the display panel. The third material layer 300 or the first material layer 100 is close to the display panel, and can play a role of a protective barrier for blocking impact at the last time, so that the impact force transmitted by the second material layer 200 can be blocked due to higher rigidity, and the display panel is further protected from impact damage. Therefore, the display cover plate provided by the embodiment of the application can improve the overall rigidity of the display cover plate, protect the display panel and ensure that the service life of the display panel cannot be influenced by external impact.
In some embodiments, the first material layer, the second material layer, and the third material layer are all prepared by printing. The printing mode can be used for bonding and connecting the two layers of materials without using bonding materials, for example, optical cement can be avoided, and the material cost of the optical cement can be saved.
In some embodiments, the first material layer, the second material layer, and the third material layer are each prepared by coating, wherein the fibrous material within at least one of the first material layer, the second material layer, and the third material layer extends through at least one other material layer. The fibers in the material layer which is coated in the coating process can penetrate through other adjacent or spaced material layers, and the penetration of the fibers can enable the material layer of the fibers and other material layers to form a woven structure through which the fibers penetrate, so that optical cement is not needed, and the material cost of the optical cement can be saved. For example, the fibers of the second material layer penetrate through the third material layer, the fibers of the third material layer penetrate through the second material layer and/or the first material layer, and the like, and the embodiments of the present application are not particularly limited. The fiber penetrates through the material layers, so that the connection between the material layers is firmer, and the display cover plate can be kept to have enough flexibility to be applied to the flexible display device without using optical cement.
In some embodiments, in a case that at least one of the second material layer and the third material layer includes a fiber material, the method for manufacturing a display cover plate provided by the embodiment of the present application further includes:
after the second material layer and the third material layer are prepared, vacuum high-temperature treatment is carried out, so that the second material layer and the third material layer are woven together through fibers. The vacuum high-temperature adhesion can make the adhesion more firm, does not receive external influence, and the second material layer can be in the same place through spandex and aramid fiber weaving with the third material layer. The spandex has high elongation at break, high elastic recovery rate and the like, can be well matched with the third material layer, and the second material layer and the third material layer are combined more firmly and are not easy to damage.
In a fourth aspect of the embodiments of the present application, a method for manufacturing a display device is provided, and fig. 4 is a schematic flowchart of the method for manufacturing the display device provided in the embodiments of the present application. As shown in fig. 4, a method for manufacturing a display device provided in an embodiment of the present application includes:
s501: and preparing the display panel.
S502: the manufacturing method comprises the steps of respectively preparing a first material layer, a second material layer and a third material layer on a display surface of a display panel, so that the second material layer is arranged between the first material layer and the third material layer, wherein the rigidity of the first material layer and the rigidity of the third material layer are larger than that of the second material layer.
According to the preparation method of the display device, the first material layer, the second material layer and the third material layer are directly prepared on the display panel, the first material layer and the third material layer can be close to the display panel, the display panel and the material layers are fixedly connected in the process of preparing the material layers close to the display panel, and adhesion is not needed to be carried out through optical cement.
According to the preparation method of the display device, the display cover plate with the three material layers is prepared, the possibility of thickening can be achieved on the whole thickness of the display cover plate, and the impact resistance can be improved due to the increase of the thickness. In addition, the rigidity of the first material layer and the rigidity of the third material layer are both larger than that of the second material layer, the rigidity of the first material layer and the rigidity of the third material layer on two sides of the second material layer are larger, any one of the first material layer and the third material layer can be used as a material layer for directly resisting external impact in the display device, the rigidity is larger, impact can be well resisted, and a good effect of blocking the external impact is achieved. The rigidity of the second material layer is less, and the deformation that can transmit first material layer or third material layer is cushioned, absorbs the impact force, and then protection display cover plate itself and display panel. The third material layer or the first material layer is correspondingly close to the display panel, the effect of a protective barrier for blocking impact at the last step can be achieved, the impact force transmitted by the second material layer can be blocked due to higher rigidity, and the display panel is further protected from impact damage. Therefore, the display cover plate provided by the embodiment of the application can improve the overall rigidity of the display cover plate, protect the display panel and ensure that the service life of the display panel cannot be influenced by external impact.
In a fifth aspect of the embodiments of the present application, a method for manufacturing a display device is provided, and fig. 5 is a schematic flowchart of another method for manufacturing a display device provided in an embodiment of the present application. As shown in fig. 5, a method for manufacturing a display device provided in an embodiment of the present application includes:
s601: the display cover plate is prepared by the preparation method of the display cover plate according to the third aspect.
S602: and fixedly connecting the display cover plate with the display panel.
According to the preparation method of the display device, the display cover plate and the display panel are prepared separately, and then the display cover plate and the display panel are fixedly connected through the optical cement or other materials.
According to the preparation method of the display device, the display cover plate with the three material layers is prepared, the possibility of thickening can be achieved on the whole thickness of the display cover plate, and the impact resistance can be improved due to the increase of the thickness. In addition, the rigidity of the first material layer and the rigidity of the third material layer are both larger than that of the second material layer, the rigidity of the first material layer and the rigidity of the third material layer on two sides of the second material layer are larger, any one of the first material layer and the third material layer can be used as a material layer for directly resisting external impact in the display device, the rigidity is larger, impact can be well resisted, and a good effect of blocking the external impact is achieved. The rigidity of the second material layer is small, deformation transmitted by the first material layer or the third material layer can be buffered, impact force is absorbed, and the display cover plate and the display panel are protected. The third material layer or the first material layer is correspondingly close to the display panel, the effect of a protective barrier for blocking impact at the last time can be achieved, the impact force transmitted by the second material layer can be blocked due to higher rigidity, and the display panel is further protected from impact damage. Therefore, the display cover plate provided by the embodiment of the application can improve the overall rigidity of the display cover plate, protect the display panel and ensure that the service life of the display panel cannot be influenced by external impact.
It should be noted that, in the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to relevant descriptions of other embodiments for parts that are not described in detail in a certain embodiment.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Embodiments of the present application further provide a computer program product, which includes computer software instructions, and when the computer software instructions are executed on a processing device, the processing device executes a process of a method for manufacturing a display cover plate and a display device.
The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). A computer-readable storage medium may be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus, device and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
While preferred embodiments of the present specification have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all changes and modifications that fall within the scope of the specification.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present specification without departing from the spirit and scope of the specification. Thus, if such modifications and variations of the present specification fall within the scope of the claims of the present specification and their equivalents, the specification is intended to include such modifications and variations.
Claims (15)
1. A display cover, comprising:
a first material layer;
a second material layer;
a third material layer disposed between the first material layer and the third material layer, the first material layer and the third material layer each having a stiffness greater than a stiffness of the second material layer;
in the case that the display cover plate is used for fixedly connecting a display panel, the first material layer is close to the display panel relative to the third material layer, or the third material layer is close to the display panel relative to the first material layer.
2. The display cover sheet of claim 1, wherein the third material layer is proximate to the display panel relative to the first material layer if the stiffness of the first material layer is greater than the stiffness of the third material layer.
3. The display cover according to claim 1,
the rigidity of the first material layer ranges from 6 GPa to 7 GPa; and/or the presence of a gas in the gas,
the stiffness of the third material layer ranges from 3 GPa to 5 GPa; and/or the presence of a gas in the gas,
the rigidity of the second material layer ranges from 40MPa to 1 GPa.
4. The display cover according to claim 1,
the material for preparing the first material layer comprises at least one of polyimide, fiber material, polyethylene film, polyethylene terephthalate and nano silver ions; and/or the presence of a gas in the atmosphere,
the material for preparing the third material layer comprises at least one of polyimide, fiber material, polyethylene film, polyethylene terephthalate and nano silver ions; and/or the presence of a gas in the atmosphere,
the material for preparing the second material layer comprises at least one of thermoplastic polyurethane and rubber.
5. The display cover according to claim 1,
the second material layer is of a fiber weaving structure, an elastic upright column structure or a whole-surface elastic structure; and/or the presence of a gas in the atmosphere,
the third material layer is of a honeycomb sandwich structure or an elastic-plastic structure.
6. The display cover according to claim 5,
the first material layer comprises polyimide and a fiber material; and/or the presence of a gas in the gas,
the second material layer comprises thermoplastic polyurethane and rubber; and/or the presence of a gas in the gas,
the third material layer comprises a polyethylene film; or the like, or, alternatively,
the third material layer comprises nano silver ions and a polyethylene film.
7. The display cover according to claim 1, wherein the thickness of the second material layer is greater than the thickness of the first material layer, and/or the thickness of the third material layer is greater than the thickness of the first material layer.
8. The display cover according to claim 1,
the thickness of the first material layer ranges from 50 to 100 μm;
the thickness of the second material layer ranges from 20 to 200 μm;
the thickness of the third material layer is in the range of 20-200 μm.
9. The display cover according to claim 1,
the first material layer is connected with the second material layer through optical cement; and/or
The second material layer is connected with the third material layer through optical cement.
10. A display device, comprising:
the display cover of any one of claims 1-9.
11. The display device according to claim 10, further comprising:
the display panel is fixedly connected with the display cover plate;
the third material layer is disposed between the display panel and the second material layer in a case where a stiffness of the first material layer is greater than a stiffness of the third material layer.
12. A method for preparing a display cover plate is characterized by comprising the following steps:
preparing a first material layer, a second material layer and a third material layer respectively so that the second material layer is arranged between the first material layer and the third material layer, wherein the rigidity of the first material layer and the rigidity of the third material layer are both larger than that of the second material layer.
13. The method for manufacturing a display cover plate according to claim 12, wherein the first material layer, the second material layer and the third material layer are manufactured by printing; or the like, or, alternatively,
the first material layer, the second material layer and the third material layer are all prepared through a coating mode, wherein the fiber materials in at least one of the first material layer, the second material layer and the third material layer penetrate through at least one other material layer.
14. A method of manufacturing a display device, comprising:
preparing a display panel;
preparing a first material layer, a second material layer and a third material layer on the display surface of the display panel respectively so that the second material layer is arranged between the first material layer and the third material layer, wherein the rigidity of the first material layer and the rigidity of the third material layer are both greater than the rigidity of the second material layer.
15. A method of manufacturing a display device, comprising:
preparing a display cover plate by using the preparation method of the display cover plate according to claim 12 or 13;
and fixedly connecting the display cover plate with the display panel.
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| CN202210283295.2A CN114596786B (en) | 2022-03-22 | 2022-03-22 | Display cover plate, display device and preparation method |
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