Patent Application
20230129444
The present disclosure relates to the field of display technologies, and in particular, to a display assembly and a display device including the display assembly.
In recent years, flexible OrganicElectroluminescence Display (OLED) display devices have attracted the attention of many users, of which stretching display is an essential component of flexible OLED.
At present, the stretchable display area of most of the flexible display panels include: an island area (display unit area), a bridge area (connecting unit area) and a hollow area. The adjacent island areas are connected by the bridge area to achieve a certain stretching performance by stretching the hollow area. Referring to
It should be noted that the above information disclosed in the “BACKGROUND” section is intended only to enhance the understanding of the context of this disclosure and may therefore include information that does not constitute prior art known to those of ordinary skill in the art.
The purpose of the present disclosure is to provide a display assembly and a display device including the display assembly, thereby overcoming, at least to a certain extent, one or more problems caused by limitations and disadvantages of the related art.
According to an aspect of the present disclosure, there is provided a display assembly, including: a flexible display panel including a stretchable display area, a breakable area and a bonding area connected in sequence; a first support film on a side of the stretchable display area; and a second support film on a side of the bonding area, the second support film and the first support film being on a same side of the flexible display panel; where an elongation of the first support film is greater than an elongation of the second support film, and a hardness of the first support film is less than a hardness of the second support film.
According to an aspect of the present disclosure, there is provided a display device, including the display assembly as described above.
Other features and advantages of the present disclosure will become apparent through the following detailed description, or will be learned in part through the practice of the present disclosure.
It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and do not limit the present disclosure.
Accompanying drawings herein, which are incorporated in the specification and form a part of the specification, show embodiments conforming to the present disclosure, and are used to explain the principles of the present disclosure together with the specification. Obviously, the accompanying drawings in the following description are only some embodiments of the present disclosure, and other accompanying drawings may be obtained according to these accompanying drawings without any creative efforts by those of ordinary skill in the art.
Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in a variety of forms, and should not be construed as limited to the embodiments described herein. On the contrary, by providing these embodiments, the present disclosure will be comprehensive and complete, and the conception of the exemplary embodiments will be fully communicated to those skilled in the art. The same reference numeral in the figures represents the same or similar structure, and therefore their detailed description will be omitted.
According to some exemplary embodiments of the present disclosure, a display assembly is first provided. Referring to structural schematic diagrams of a display assembly according to a plurality of exemplary embodiments of the present disclosure shown in
In some exemplary embodiments of the present disclosure, the stretchable display area A of the flexible display panel 3 may include: an island area (display unit area), a bridge area (connecting unit area), and a hollow area, none of which is shown in the figures, adjacent island areas being connected by a bridge area. The island area is provided with light-emitting units, and the light-emitting units include organic light-emitting graphics. The breakable area B is connected between the stretchable display area A and the bonding area C, with a concentration of metal wires 32 connecting the stretchable display area A and the bonding area C. Therefore, breakage is very likely to occur in the breakable area B. A plurality of connection contacts 31 are provided in the bonding area C for bonding with the bonding contacts 11 of the IC chip 1 to connect the IC chip 1 to the flexible display panel 3.
In some exemplary embodiments of the present disclosure, the elongation of the first support film 4 is greater than the elongation of the second support film 5. For example, the elongation of the first support film 4 is greater than or equal to 20% and less than or equal to 40%, and the elongation of the second support film 5 is less than or equal to 3%. Elongation is an index describing the plastic properties of a material, and the elongation is the percentage of the total deformation of a gauge length section to the original gauge length after stretching and breakage of the sample.
In some exemplary embodiments of the present disclosure, the hardness of the first support film 4 is less than the hardness of the second support film 5. For example, the hardness of the first support film 4 is greater than or equal to 1 MPa and less than or equal to 10 Mpa, and the hardness of the second support film 5 is greater than or equal to 1 GPa and less than or equal to 10 Gpa.
Since the material properties of the first support film 4 and the second support film 5 differ greatly, they cannot be made into a one-piece film. The first support film 4 is provided on one side of the stretchable display area A, and the second support film 5 is provided on one side of the bonding area C. The end, close to the second support film 5, of the first support film 4, and the end, close to the first support film 4, of the second support film 5 can be lapped to each other, and the width of the lap between the second support film 5 and the first support film 4 is greater than or equal to 1 mm and less than or equal to 2 mm. The opposite end of the first support film 4 may protrude from the stretchable display area A, and the opposite end of the second support film 5 may protrude from the bonding area C. The other two ends of the first support film 4 may protrude from the stretchable display area A or may be flush with the stretchable display area A, and the other two ends of the second support film 5 may protrude from the bonding area C or may be flush with the bonding area C. Specific embodiments of the first support film 4 lapped to the second support film 5 are as follows.
Referring to the structural schematic diagrams of the display assembly according to a first exemplary embodiment of the present disclosure shown in
Referring to the structural schematic diagram of the display assembly according to a second exemplary embodiment of the present disclosure shown in
Alternatively, the end, close to the second support film 5, of the first support film 4, and the end, close to the first support film 4, of the second support film 5 may not be lapped with each other. The opposite end of the first support film 4 may protrude from the stretchable display area A, and the opposite end of the second support film 5 may protrude from the bonding area C. The other two ends of the first support film 4 may protrude from the stretchable display area A, or may be flush with the stretchable display area A. The other two ends of the second support film 5 may protrude from the bonding area C or may be flush with the bonding area C. Specific exemplary embodiments are as follows.
Referring to the structural schematic diagram of the display assembly according to a third exemplary embodiment of the present disclosure shown in
Referring to the structural schematic diagram of the display assembly according to a fourth exemplary embodiment of the present disclosure shown in
Of course, in other exemplary embodiments of the present disclosure, it may be that the end of the first support film 4 close to the second support film 5 extends to the breakable area B, but that the second support film 5 does not extend below the breakable area B. Alternatively, it can also be that the first support film 4 does not extend below the breakable area B, but that the end of the second support film 5 close to the first support film 4 extends below the breakable area B. In these cases, the width of the gap 6 is less than 2 mm.
Referring to the structural schematic diagram of the display assembly according to a fifth exemplary embodiment of the present disclosure shown in
Further, in other exemplary embodiments of the present disclosure, it may be that the end of the first support film 4 close to the second support film 5 extends to the breakable area B until it contacts the second support film 5, but that the second support film 5 does not extend below the breakable area B. Alternatively, it may also be that the first support film 4 does not extend below the breakable area B, but that the end of the second support film 5 close to the first support film 4 extends below the breakable area B until it is in contact with the first support film 4.
It should be noted that in the exemplary embodiments shown in
Referring to a schematic diagram of a structure of the display assembly of the present disclosure after bonding to the IC chip shown in
Moreover, developing a new bonding process may be time-consuming, costly and less feasible. However, this problem can be effectively solved by using the first support film and the second support film of the present disclosure without affecting the stretching effect, and also allows the use of the original process for bonding with low cost and high feasibility.
Further, the present disclosure provides a display device which may include the display assembly as described in any one of the above embodiments. The specific structure of the display assembly has been described in detail above, so it will not be repeated here.
The specific type of the display device is not particularly limited, which can be any types of display devices commonly used in the field, for example, cell phones and other mobile devices, watches and other wearable devices, VR devices, etc., and can be selected by a person skilled in the field accordingly according to the specific use of the display device, and will not be repeated here.
It should be noted that the display device, in addition to the display assembly, also includes other necessary parts and components. Taking a display as an example, it may specifically include, housing, circuit boards, power lines, and so on, which can be added accordingly by the person skilled in the field according to the specific requirements of the use of the display device, and will not be repeated here.
Compared with the prior art, the beneficial effects of the display device according to the exemplary embodiments of the present disclosure are the same as the beneficial effects of the display assembly according to the exemplary embodiments above and will not be repeated here.
The features, structures or characteristics described above may be combined in any suitable manner in one or more embodiments and, if possible, the features discussed in the various embodiments are interchangeable. In the above description, many specific details are provided thereby giving a full understanding of the embodiments of the present disclosure. However, those skilled in the art will realize that it is possible to practice the technical embodiments of the present disclosure without one or more of the specific details described, or that other methods, components, materials, etc. may be employed. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the present invention.
The terms “about” and “approximately” as used in this specification generally indicate that they are within 20%, preferably within 10%, and more preferably within 5% of a given value or range. The quantities given herein are approximate quantities, meaning that “about,” “approximately,” “roughly,” “probably” may still be implied in the absence of a specific specification.
Although relative terms such as “up” and “down” are used in this specification to describe the relative relationship of one component of the icon to another, these terms are used in this specification only for convenience, for example, according to the orientation of the examples illustrated in the accompanying drawings. It should be understood that if the device of the icon is flipped so that it is upside down, the component described as being “up” will become the component described as being “down”. Other relative terms such as “high”, “low”, “top”, “bottom”, etc. have similar meanings. When a structure is “on” other structures, it may mean that the structure is integrally formed on other structures, or that the structure is “directly” set on other structures, or that the structure is “indirectly” set on other structures through another structure.
In this specification, the terms “one”, “a/an”, “the” and “said” are used to indicate the presence of one or more elements/components/etc. The terms “contains”, “includes” and “has/have” are used to indicate an open-ended inclusion and refer to the existence of additional elements/components/etc. in addition to the listed elements/components/etc. The terms “first”, “second” and “third” are used only as indications and not as limitations on the number of objects.
It should be understood that the present disclosure does not limit its application to the detailed construction and arrangement of the components presented in this specification. The present disclosure can have other embodiments and can be realized and performed in a variety of ways. The aforementioned variant and modified forms fall within the scope of the present disclosure. It should be understood that the present application as disclosed and limited by this specification extends to all alternative combinations of two or more individual features mentioned or apparent in the text and/or the accompanying drawings. All of these different combinations constitute multiple alternative aspects of the present application. The embodiments described in this specification illustrate the best manner known for implementing the present application and will enable those skilled in the art to utilize the application.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202011155997.X | Oct 2020 | CN | national |
The present disclosure is a national phase entry under 35 U.S.C. § 371 of International Application No. PCT/CN2021/116810, filed on Sep. 7, 2021 and claims the priority to Chinese Patent Application No. 202011155997.X filed on Oct. 26, 2020, and entitled “DISPLAY ASSEMBLY AND DISPLAY DEVICE,” the entire contents of which are incorporated herein by reference in their entireties.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2021/116810 | 9/7/2021 | WO |
