CN116072006A - Display assembly and display device - Google Patents

Abstract

The disclosure provides a display component and a display device, which belong to the field of display technology. The display component may include a display panel, a support and an optical glue layer. Wherein, the display panel may include a bending area and a non-bending area. The support may be located on the back of the display panel and include a first support film and a second support film sequentially stacked on the display panel, wherein both the first support film and the second support film are provided with a hollow part, and the hollow part The orthographic projection on the display panel is located within the bending area, and the orthographic projection of the hollow part of the first support film on the display panel is outside the orthographic projection of the hollow part of the second support film on the display panel. An optical adhesive layer may be located between the display panel and the support to bond the display panel and the support. By arranging and stacking the first support film and the second support film, the optical glue in the optical glue layer can be prevented from overflowing to others, thereby greatly reducing creases of the display panel.

Description

Display components and display devices

technical field

The present invention relates to the field of display technology, in particular to a display component and a display device.

Background technique

With the development of display technology, foldable flexible display technology has attracted more and more attention from the market, and foldable flexible terminal products have gradually entered the consumer market. A foldable flexible display is usually formed by laminating multiple structures, and the multiple structures are bonded through an adhesive layer. However, after a foldable flexible display is folded many times for a long time, the optical glue in the glue layer is likely to overflow into other structures, resulting in obvious creases on the display, thereby reducing the user experience.

Contents of the invention

The purpose of the present disclosure is to provide a display component and a display device, which can reduce the creases of the display panel.

In order to achieve the above-mentioned purpose of the invention, the present disclosure adopts the following technical solutions:

A first aspect of the present disclosure provides a display assembly including a display panel, a support and an optical adhesive layer. The display panel includes a bending area and a non-bending area. The supporting member is located at the back of the display panel and includes a first supporting film and a second supporting film sequentially stacked on the display panel. Wherein, both the first supporting film and the second supporting film are provided with hollow parts. The orthographic projection of the hollow part on the display panel is located within the bending area, and the orthographic projection of the hollow part of the first supporting film on the display panel is outside the orthographic projection of the hollow part of the second supporting film on the display panel. The optical glue layer is located between the display panel and the support to bond the display panel and the support.

In an implementation manner of the first aspect of the present disclosure, the adhesive material layer includes a plurality of adhesive material units, and the hollow parts of the first supporting film are filled with the adhesive material units.

In an implementation manner of the first aspect of the present disclosure, the hollow part of the second supporting film is filled with adhesive material units.

In an implementation manner of the first aspect of the present disclosure, the upper surface of the glue unit is flush with the first supporting film.

In an implementation manner of the first aspect of the present disclosure, the material of the glue unit is cured glue.

In an implementation manner of the first aspect of the present disclosure, the support member is a metal film layer.

In an implementation manner of the first aspect of the present disclosure, the shape of the hollow part includes at least one of a groove and a through hole.

In an implementation manner of the first aspect of the present disclosure, when the shape of the hollow part is a groove, each groove in the plurality of grooves in the thickness direction of the first support film or the second support film The cross section is rectangular or U-shaped.

In an implementation manner of the first aspect of the present disclosure, the display component further includes a multi-layer structure on the display panel. Wherein, each of the multi-layer structures is attached to the display panel through an optical adhesive layer.

A second aspect of the present disclosure provides a display device, which includes the above-mentioned display component.

In the present disclosure, since the supporting member may include a first supporting film and a second supporting film sequentially stacked on the display panel, after the display assembly is bent, the stacking design of the first supporting film and the second supporting film can The probability of the optical adhesive in the optical adhesive layer overflowing to other film layers is reduced, thereby reducing the probability of creases on the display panel. In addition, since the orthographic projection of the hollow part on the display panel is located within the bending area, and the orthographic projection of the hollow part of the first support film on the display panel is located between the orthographic projection of the hollow part of the second support film on the display panel In addition, therefore, after the display component is bent, the area outside the orthographic projection of the hollow part of the second support film on the display panel can prevent the optical glue in the optical adhesive layer from overflowing to other film layers through the first hollow part, Therefore, the probability of creases on the display panel can be further reduced, and the bending resistance of the display component can be improved, thereby improving user experience.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the traditional technology. Obviously, the accompanying drawings in the following description are only the present invention For some embodiments of the application, those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic structural diagram of a display component according to an embodiment of the present disclosure.

FIG. 2 is a schematic structural diagram of another display component according to an embodiment of the present disclosure.

FIG. 3 is a schematic structural diagram of another display component according to an embodiment of the present disclosure.

Explanation of reference signs:

100-display component; 101-bending area; 102-non-bending area; 110-support; 111-first supporting film; 112-second supporting film; 113-hollowout; 114-third supporting film; 115 - groove; 120 - optical adhesive layer; 130 - display panel.

Detailed ways

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many 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. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure.

In the drawings, the thicknesses of regions and layers may be exaggerated for clarity. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted. When a structure is "on" another structure, it may mean that a structure is integrally formed on another structure, or that a structure is "directly" placed on another structure, or that a structure is "indirectly" placed on another structure through another structure. other structures.

In the display component of the foldable display device, when bending, each film layer in the display component and the glue layer bonding the multiple film layers will be subjected to stress in different degrees and in different directions, and the display component will also be subjected to Repeated bending many times, resulting in excessive stress (or cyclic stress) on the film layer and adhesive layer of the display component, causing the optical glue in the adhesive layer to overflow into multiple film layers, thereby causing the display screen of the display device to appear folded. mark. In this way, the bending resistance of the display device is seriously reduced, thereby seriously affecting the user experience.

Embodiments of the present disclosure provide a display component to at least solve the above technical problems. The display component may include a display panel, a support and an optical glue layer. Wherein, the display panel may include a bending area and a non-bending area. The support can be located on the back of the display panel and include a first support film and a second support film stacked on the display panel in sequence, wherein both the first support film and the second support film are provided with hollowed out parts, and the hollowed out parts are formed on the display panel. The orthographic projection on the display panel is located inside the bending area, and the orthographic projection of the hollow part of the first support film on the display panel is outside the orthographic projection of the hollow part of the second support film on the display panel. An optical adhesive layer may be located between the display panel and the support to bond the display panel and the support.

In the present disclosure, since the supporting member may include a first supporting film and a second supporting film sequentially stacked on the display panel, after the display assembly is bent, the stacking design of the first supporting film and the second supporting film can The probability of the optical adhesive in the optical adhesive layer overflowing to other film layers is reduced, thereby reducing the probability of creases on the display panel. In addition, since the orthographic projection of the hollow part on the display panel is located within the bending area, and the orthographic projection of the hollow part of the first support film on the display panel is located between the orthographic projection of the hollow part of the second support film on the display panel In addition, therefore, after the display component is bent, the area outside the orthographic projection of the hollow part of the second support film on the display panel can prevent the optical glue in the optical adhesive layer from overflowing to other film layers through the first hollow part, Therefore, the probability of creases on the display panel can be further reduced, and the bending resistance of the display component can be improved, thereby improving user experience.

The components of the display assembly provided by the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings:

In an embodiment of the present disclosure, as shown in FIG. 1 , the display assembly 100 may include a display panel 130 , a support 110 and an optical adhesive layer 120 . Wherein, the display panel 130 may include a bending area 101 and a non-bending area 102 . The support 110 may be located on the back of the display panel 130 and include a first support film 111 and a second support film 112 sequentially stacked on the display panel 130, wherein both the first support film 111 and the second support film 112 are provided with hollows. part 113, the orthographic projection of the hollow part 113 on the display panel 130 is located within the bending area 101, and the orthographic projection of the hollow part 113 of the first supporting film 111 on the display panel 130 is located at the hollow part 113 of the second supporting film 112 Outside the orthographic projection on the display panel 130 . The optical adhesive layer 120 may be located between the display panel 130 and the supporter 110 to bond the display panel 130 and the supporter 110 .

In this first aspect, the first support film 111 and the second support film 112 stacked on the display panel 130 in sequence are bonded to the display panel 130 by the optical adhesive layer 120, and when the display assembly 100 is bent, it can The overflow of the optical adhesive in the optical adhesive layer 120 to other film layers is greatly reduced, thereby greatly reducing creases of the display panel 130 , thereby greatly improving user experience. In addition, under the combined action of the hollowed-out portion 113 of the first supporting film 111 and the hollowed-out portion 113 of the second supporting film 112, the optical glue in the optical glue layer 120 can be prevented from overflowing to other film layers, thereby further reducing the appearance of the display panel 130. Creases to further greatly enhance the user experience.

It should be noted that the orthographic projection of the hollow portion 113 of the first support film 111 on the display panel 130 outside the orthographic projection of the hollow portion 113 of the second support film 112 on the display panel 130 may refer to the first hollow portion The orthographic projection of 113 on the bending area 101 may not overlap with the orthographic projection of the second hollow part 113 on the bending area 101 .

For example, in at least one embodiment of the present disclosure, after the display panel 130 is bent, due to the orthographic projection of the first hollow part 113 located on the first support film 111 in the bending area 101 and the second hollow part 113 located on the second support film 112 The orthographic projections of the hollows 113 in the bending area 101 do not overlap, therefore, the optical adhesive in the optical adhesive layer 120 will be completely prevented from entering other film layers by the non-overlapping areas of the first hollows 113 and the second hollows 113, thereby It can greatly reduce the overflow of optical glue to other film layers, thereby reducing the occurrence of creases. Specifically, the orthographic projection of the first hollow portion 113 on the bending region 101 refers to the area formed by the orthographic projection of the first hollow portion 113 in the thickness direction of the display panel 130 or the area formed by the first hollow portion 113 perpendicular to the second hollow. The area formed by the orthographic projection in the direction of part 113. The orthographic projection of the second hollow portion 113 on the bending region 101 refers to the area formed by the orthographic projection of the second hollow portion 113 in the thickness direction of the display panel 130 or the second hollow portion 113 is perpendicular to the direction of the first hollow portion 113 The area formed by the orthographic projection on . And the orthographic projection of the first hollow part 113 in the bending area 101 and the orthographic projection of the second hollow part 113 in the bending area 101 may not overlap, which means that the orthographic projection of the first hollow part 113 in the thickness direction of the display panel 130 There is no overlapping area between the area formed by the projection and the area formed by the orthographic projection of the second hollow portion 113 in the thickness direction of the display panel 130 .

It should be noted that the hollow part 113 can effectively avoid the concentration or unevenness of the folding stress, so that the bending stress of the entire structure is small during the bending, and the risk of cracking of the film layer of the folding display panel 130 is reduced, thereby improving the folding display panel 130. Flexibility and stability.

For example, in at least one embodiment of the present disclosure, the display panel 130 may include a plurality of bending regions 101 and a plurality of non-bending regions 102 . For example, the bending zone 101 may include a first bending zone 101 and a second bending zone 101 . The non-bending area 102 may include a first non-bending area 102 , a second non-bending area 102 and a third non-bending area 102 . Wherein, the first bending area 101 may be located between the first non-bending area 102 and the second non-bending area 102, and the second bending area 101 may be located between the second non-bending area 102 and the third non-bending area Between 102. The orthographic projection of the hollow portion 113 of the support member 110 on the display panel 130 may be located within the first bending area 101 and the second bending area 101 .

In an embodiment of the present disclosure, the first supporting film 111 may be located above the second supporting film 112 . In some embodiments, the first supporting film 111 may also be located below the second supporting film 112 , which is not specifically limited in the present disclosure. It is worth noting that no matter whether the first support film 111 is located above or below the second support film 112, the orthographic projection of the hollow part 113 of the first support film 111 on the display panel 130 is located at the position of the hollow part 113 of the second support film 112. Outside the orthographic projection on the display panel 130 .

For example, in at least one embodiment of the present disclosure, as shown in FIG. 2 , the support member 110 may further include a third support film 114 stacked on the second support film 112 in sequence. Wherein, the third supporting film 114 may have a hollow portion 113 . The orthographic projection of the hollow part 113 of the third supporting film 114 on the display panel 130 is also located in the bending area 101, and the orthographic projection of the hollow part 113 of the third supporting film 114 on the display panel 130 is located in the second supporting film 112. The hollow part 113 is outside the orthographic projection on the display panel 130 . The provision of the third supporting film 114 can further prevent the optical glue in the optical glue layer 120 from overflowing to other film layers, thereby reducing creases generated after the display panel 130 is bent.

For example, in at least one embodiment of the present disclosure, the support member 110 may be a metal film layer, that is, the first support film 111 , the second support film 112 and the third support film 114 may be a metal film layer. Optionally, the metal film layer can be made of metal materials such as stainless steel (SUS), brass or aluminum (Al). Optionally, the thickness of the metal film layer may range from 100 to 120 μm. For example, the thickness of the metal film layer can be 100 μm, 110 μm, 120 μm and so on.

In an embodiment of the present disclosure, the display assembly 100 may further include an adhesive material layer, and the adhesive material layer may include a plurality of adhesive material units. Wherein, the hollow part 113 of the first supporting film 111 may be filled with adhesive material units. When the display assembly 100 is bent, since the hollow part 113 of the first supporting film 111 is filled with the glue unit, the glue unit can prevent the optical glue in the optical glue layer 120 from overflowing to other film layers, so it can reduce the number of other film layers. Glue build-up occurs between layers, thereby reducing creases of the display panel 130 .

In addition, the hollow part 113 of the first support film 111 or the hollow part 113 of the second support film 112 is filled with adhesive material units, which can make the first support film 111 and the second support film 112 interconnected and integrated, thereby greatly releasing The stress concentration generated when the display panel 130 is bent can greatly improve the bending resistance of the display assembly 100 .

In another embodiment, both the hollowed out portion 113 of the first support film 111 and the hollowed out portion 113 of the second support member 110 can be filled with an adhesive sheet or the hollowed out portion 113 of the second support film 112 can also be filled with an adhesive material unit .

For example, in at least one embodiment of the present disclosure, the upper surface of the glue unit is flush with the first supporting film 111 . Specifically, the adhesive unit may include an upper surface and a lower surface oppositely disposed, and the first supporting film 111 may include an upper surface close to the optical adhesive layer 120 and a lower surface far away from the optical adhesive layer 120 . Wherein, the upper surface of the glue material unit can be flush with the upper surface of the first support film 111, that is, after the glue material unit is filled to the hollow part 113 of the first support film 111, the upper surface of the glue material unit can be flush with the first support film 111. The upper surfaces of the film 111 can be in the same plane, so that the flatness of the first support film 111 can be improved, so that the display panel 130 and the support member 110 can be easily bonded through the optical adhesive layer 120 .

In some embodiments, when the hollow part 113 of the second support film 112 is filled with the glue unit, the lower surface of the glue unit may be flush with the second support film 112 . The specific description is as above, and details are not repeated here. Using the above technical solution, the flatness of the second supporting film 112 can be improved, so as to facilitate the adhesion of the second supporting film 112 to other film layers.

For example, in at least one embodiment of the present disclosure, the material of the glue unit is cured glue. On the one hand, the cured adhesive material has high toughness, which can reduce the probability of its fracture when the display panel 130 is continuously bent; on the other hand, the cured adhesive material can prevent the optical adhesive in the optical adhesive layer 120 from overflowing to other film layer, so as to reduce the generation of glue buildup, thereby reducing the creases of the display panel 130 .

For example, in at least one embodiment of the present disclosure, the cured adhesive layer may fill the hollow portion 113 with polyimide, and then use high temperature curing treatment to form the cured adhesive layer. Among them, since polyimide is a polymer material, it has natural advantages in insulation, flexibility, and creep resistance. Therefore, the cured adhesive layer formed by polyimide can have high transparency and flexibility, so that Multiple times of repeated bending can be performed on the display panel 130 .

In an embodiment of the present disclosure, as shown in FIG. 3 , the shape of the hollow part 113 may include at least one of a groove 115 and a through hole. Specifically, when the shape of the hollow portion 113 is a groove 115 , the hollow portion 113 of the first supporting film 111 may be the groove 115 or the second hollow portion 113 may be the groove 115 . The groove 115 of the first hollow part 113 can prevent the optical glue in the optical glue layer 120 from overflowing to other film layers, thereby reducing the occurrence of glue stacking, thereby reducing creases of the display panel 130 .

For example, in at least one embodiment of the present disclosure, the groove 115 of the first support film 111 may be filled with glue units, so as to prevent the optical glue in the optical glue from overflowing to other film layers, thereby reducing creases.

For example, in at least one embodiment of the present disclosure, the cross section of each groove 115 in the thickness direction of the first supporting film 111 or the second supporting film 112 in the plurality of grooves 115 is a rectangular or U-shaped structure. It should be noted that the plurality of grooves 115 can be arranged in an array on the first support film 111 or the second support film 112 .

In one embodiment of the present disclosure, the first supporting layer or the second supporting layer is a grid-like integrated structure, and the pattern of the hollowed out part 113 also includes one or more of rectangles, parallelograms or trapezoids, the hollowed out pattern The portion can avoid stress concentration or unevenness generated by the display panel 130 in the bending area 101 , thereby reducing the risk of film cracking of the display panel 100 , thereby improving the flexibility and stability of the display panel 130 .

In the first aspect of the present disclosure, the display assembly 100 may further include a multi-layer structure on the display panel 130 , wherein each of the multi-layer structures is attached to the display panel 130 through the optical adhesive layer 120 . In this way, the first support film 111 and the second support film 112 stacked on each multi-film layer structure in the embodiment of the present disclosure can be used to bond the display panel 130 through the optical adhesive layer 120, which can make the display All the adhesive layers in the assembly 100 are applied to the support member 110 provided by the embodiment of the present disclosure, which can be used to reduce the glue build-up generated by the film layers bonded by the optical adhesive layer 120, thereby further improving the crease of the display assembly 100 to improve user experience.

It should be noted that the specific components (film layers) included in the above-mentioned multi-layer structure can be selected according to the specific structural design of the display module 100, and the display module 100 can be increased or decreased according to actual needs according to different design functions. components (layers).

The display assembly 100 provided in at least one embodiment of the present disclosure may further include a polarizing layer, and the polarizing layer is attached to the display side of the display panel 130 through the optical adhesive layer 120 . Exemplarily, the polarizing layer is pasted on the side of the display panel 130 away from the supporting member 110 through the optical glue layer 120 . When the display component 100 is bent for a long time, the optical adhesive layer 120 is likely to overflow to the polarizing layer, thereby causing glue build-up. Using the support member 110 provided by the embodiment of the present disclosure to attach the polarizing layer can reduce the optical glue in the optical glue layer 120 overflowing to the polarizing layer, thereby further reducing creases of the display panel 130 .

In an embodiment of the present disclosure, at least one film layer structure further includes a touch layer, and the touch layer is located between the polarizing layer and the display panel 130; wherein, the touch layer can be bonded to the polarizing layer through the optical adhesive layer 120 , the touch layer is in contact with the display panel 130 or attached to the display panel 130 through the optical adhesive layer 120 . Specifically, the touch layer may enable the display device to have a touch function, and the user controls the display function of the display panel 130 by sliding a finger or a stylus. For example, the touch layer can also be configured to include a pressure-sensitive film layer (such as a metal grid), so as to have a three-dimensional touch function.

Optionally, a support 110 may also be provided between the touch layer and the display panel 130 , wherein the support 110 is attached to the display panel 130 through the optical adhesive layer 120 . When the display panel 130 is bent, the touch layer is also bent, and the support member 110 can prevent the optical glue in the optical glue layer 120 from overflowing into the touch layer, so that the touch layer can reduce the accumulation of glue , thereby improving the touch accuracy of the touch layer, thereby improving user experience.

In an embodiment of the present disclosure, the display panel 130 may also include an array substrate, a display function layer formed on the array substrate, and an encapsulation layer covering the display function layer. The touch layer is formed by depositing thin film, patterning and other processes. In this way, it is beneficial to the thinner and lighter design of the entire display device.

In the display assembly 100 provided in at least one embodiment of the present disclosure, at least one film layer structure further includes a cover frame, the cover frame is located on the side of the polarizing layer away from the display panel 130 and bonded to the polarizing layer through the optical adhesive layer 120 superior. The cover frame can fix and protect the display panel 130 . For example, when the cover frame is damaged, it can be replaced as needed.

Embodiments of the present disclosure further provide a display device, which includes any display component 100 described in the above embodiment of the display component 100 . The display device may be a smart phone screen, a computer monitor, a digital camera photo frame, a tablet computer, an electronic picture screen, an electronic billboard or other types of display devices. Since the display device has any one of the display components 100 described in the implementation manner of the display component 100 above, it has the same beneficial effect, and the present disclosure will not repeat them here.

It should be understood that the present disclosure does not limit its application to the detailed structure and arrangement of the display assembly 100 presented in this specification. The disclosure is capable of other embodiments and of being practiced and carried out in various ways. The foregoing variations and modifications fall within the scope of the present disclosure. It shall be understood that the disclosure disclosed and defined in this specification extends to all alternative combinations of two or more of the individual features mentioned or evident in the text and/or drawings. All of these different combinations constitute alternative aspects of the disclosure. The embodiments described herein describe the best mode known for carrying out the disclosure and will enable others skilled in the art to utilize the disclosure.

Claims (10)

1. A display assembly, characterized in that, comprising: A display panel, including a flexed area and a non-flexed area; The supporting member is located on the back of the display panel and includes a first supporting film and a second supporting film stacked on the display panel in sequence, wherein both the first supporting film and the second supporting film are provided with a hollow part, the orthographic projection of the hollow part on the display panel is located within the bending area, and the orthographic projection of the hollow part of the first support film on the display panel is located on the second support the cutout of the film is outside the orthographic projection on the display panel; and An optical glue layer is located between the display panel and the supporting member to bond the display panel and the supporting member. 2. The display assembly according to claim 1, further comprising: The adhesive material layer includes a plurality of adhesive material units, and the hollow parts of the first supporting film are filled with the adhesive material units. 3 . The display assembly according to claim 2 , wherein the hollow part of the second supporting film is filled with the glue unit. 4 . 4. The display assembly according to claim 2, wherein the upper surface of the glue unit is flush with the first supporting film. 5. The display assembly according to claim 2, wherein the material of the glue unit is cured glue. 6. The display assembly according to claim 1, wherein the support member is a metal film layer. 7. The display assembly according to claim 1, wherein the shape of the hollow part comprises at least one of a groove and a through hole. 8. The display assembly according to claim 7, wherein when the shape of the hollow part is the groove, each of the plurality of grooves is in the first A cross-section in the thickness direction of a supporting film or the second supporting film is a rectangular or U-shaped structure. 9. The display assembly according to claim 1, further comprising a multi-layer structure on the display panel, wherein, Each of the multi-layer structures is attached to the display panel through the optical adhesive layer. 10. A display device, comprising the display component according to any one of claims 1-9.

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