CN117496828A - Display device and electronic equipment - Google Patents

The application provides a display device and electronic equipment, wherein the display device comprises a display panel and an adhesive layer, the display panel comprises a display main body, a binding part and a bending part connected between the display main body and the binding part, and the binding part is arranged on the backlight side of the display main body; in the width direction of the display panel in the plan view, the binding portion includes at least two portions with different widths, and the boundary of the adhesive layer on the orthographic projection of the plane of the display main body is located in the orthographic projection of the larger portion of the at least two portions with different widths on the plane of the display main body. The application solves the technical problem that the assembly of the display product is affected because the bonding layer exceeds the area where the binding part is located.

Display device and electronic equipment

Technical Field

The application relates to the technical field of display, in particular to a display device and electronic equipment.

Background

In the modern communication industry, market demands of products such as mobile phones, televisions, tablets, notebooks, digital cameras and the like are increasing, and various display devices are also developing towards high resolution, side display and the like.

In the conventional design of the dual-sided display product, the terminal area of the display panel is generally in an i-shape design, as shown in fig. 1 and 2, and fig. 1 and 2 are schematic diagrams of the prior art design before and after the display device 100' is bound. The display device 100' includes a display panel 10' and an adhesive layer 11', the display panel 10' includes a display main body 101', a binding portion 102', and a bending portion 103' connected between the display main body 101' and the binding portion 102', the binding portion 102' is used for binding connection with a driving device such as a driving chip, and the adhesive layer 11' is located between the display main body 101' and the binding portion 102' and is used for fixing the binding portion 102' on a back surface of the display main body 101 '.

However, after the binding portion 102 'is bent to the back surface of the display main body 101', the adhesive layer 11 'may exceed the area where the binding portion 102' is located, and in the subsequent assembly process of the product, the portion of the adhesive layer 11 'exceeding the area where the binding portion 102' is located is easy to adhere to foreign matters, so that the normal operation of the assembly process of the product is greatly affected.

Disclosure of Invention

The application provides a display device and electronic equipment to solve the technical problem that the bonding layer surpasses the binding portion and influences the product equipment in the display device.

The present application provides a display device, which includes:

the display panel comprises a display main body, a binding part and a bending part connected between the display main body and the binding part, wherein the binding part is arranged on the backlight side of the display main body; and

an adhesive layer disposed between the display main body and the binding portion;

the binding portion includes at least two portions with different widths in a width direction of the display panel in a plan view, and a boundary of orthographic projection of the adhesive layer on a plane where the display main body is located in orthographic projection of a larger portion of the at least two portions with different widths on the plane where the display main body is located.

In the display device described in this application, the binding portion includes a first sub-binding portion and a second sub-binding portion connected to the first sub-binding portion, where the first sub-binding portion is located at a side of the second sub-binding portion away from the bending portion;

in the width direction of the display panel in a plan view, the maximum width of the first sub-binding part is larger than the maximum width of the second sub-binding part, or the maximum width of the first sub-binding part, the maximum width of the bending part and the maximum width of the second sub-binding part are sequentially reduced;

the boundary of the orthographic projection of the bonding layer on the plane of the display main body is positioned in the orthographic projection of the first sub-binding part on the plane of the display main body.

In the display device of the present application, the structure formed by the binding portion and the bending portion is in an i shape.

In the display device of the application, the display device further comprises a first support plate and a second support plate, wherein the first support plate is arranged on one side of the display main body facing the binding portion, the second support plate is arranged on one side of the binding portion facing the display main body, and the bonding layer is arranged between the first support plate and the second support plate.

In the display device described in the present application, the display main body includes a display area and a non-display area provided on a peripheral side of the display area;

the display device further comprises a buffer layer, wherein the buffer layer is arranged on one side, close to the bonding layer, of the first support plate and corresponds to the display area.

In the display device of the present application, the binding portion includes a first sub-binding portion and a second sub-binding portion connected to the first sub-binding portion, the first sub-binding portion is located at a side of the second sub-binding portion away from the bending portion, and one end of the first sub-binding portion, which is close to the bending portion, is flush with one end of the buffer layer, which is close to the bending portion;

the boundary of the orthographic projection of the bonding layer on the plane of the display main body is positioned in the orthographic projection of the first sub-binding part on the plane of the display main body.

In the display device of the present application, a boundary of the orthographic projection of the adhesive layer on the plane where the display main body is located coincides with a boundary of the orthographic projection of the first sub-binding portion on the plane where the display main body is located.

In the display device described in this application, the binding portion includes a first sub-binding portion and a second sub-binding portion connected to the first sub-binding portion, the first sub-binding portion is located at a side of the second sub-binding portion away from the bending portion, and a boundary of the adhesive layer, where the adhesive layer is located in an orthographic projection of a plane where the display main body is located, is located in an orthographic projection of the first sub-binding portion where the display main body is located;

orthographic projection of the first sub-binding part on the plane of the display main body is a first pattern, the first pattern comprises a first straight edge, a first arc edge and a second straight edge which are sequentially connected, the first straight edge is one edge of the first pattern, which is close to the second sub-binding part, the second straight edge is perpendicular to the extending direction of the first straight edge, and the first arc edge is a concave arc edge;

orthographic projection of the bonding layer on a plane where the display main body is located is a second pattern, wherein the second pattern comprises a third straight edge, a second arc edge and a fourth straight edge which are sequentially connected, the third straight edge corresponds to the first straight edge, the second arc edge corresponds to the first arc edge, and the fourth straight edge corresponds to the second straight edge;

and a tolerance distance is arranged between the second arc edge and the first arc edge.

In the display device described in the present application, the tolerance distance is greater than or equal to 0.2 mm.

In the display device of the present application, the orthographic projection of the binding portion on the plane where the display main body is located overlaps with the orthographic projection of the second support plate on the plane where the display main body is located.

In the display device of the present application, the adhesive layer is formed by a cutting process and is formed between the display main body and the first sub-binding portion by an attaching manner.

In the display device of the application, the bonding layer comprises a substrate layer and adhesive layers respectively arranged on two sides of the substrate layer, the substrate layer is made of polyethylene terephthalate, and the adhesive layers are made of pressure-sensitive adhesive.

The application also provides electronic equipment, which comprises the display device.

Compared with the display device in the prior art, the display device that this application provided includes display panel and tie coat, display panel includes the display main part, bind the portion and connect the kink between display main part and bind the portion, bind the portion and set up the side in a poor light at the display main part, this application is through making the tie coat in the planar orthographic projection that display main part place boundary is located the portion of binding in the planar orthographic projection that display main part place, avoided bonding foreign matter because of the tie coat surpasss the region that binds the portion place to guaranteed the normal clear of display product packaging process, and then promoted the product quality.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic plan view of a prior art display device before binding a binding portion;

FIG. 2 is a schematic plan view of a prior art display device after binding a binding portion;

fig. 3 is a schematic plan view of a display device according to an embodiment of the present disclosure;

FIG. 4 is a schematic cross-sectional view along line AA' of FIG. 3;

fig. 5 is a schematic partial structure of a display device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a first pattern and a second pattern in a display device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

Referring to fig. 3, fig. 3 is a schematic plan view of a display device according to an embodiment of the disclosure.

The embodiment provides a display device 100 including a display panel 10 and an adhesive layer 11. The display panel 10 includes a display main body 101, a binding portion 102, and a bending portion 103 connected between the display main body 101 and the binding portion 102. The binding portion 102 is provided on the backlight side of the display main body 101. The adhesive layer 11 is disposed between the display main body 101 and the binding portion 102. The boundary of the orthographic projection of the adhesive layer 11 on the plane of the display main body 101 is located in the orthographic projection of the binding portion 102 on the plane of the display main body 101.

Therefore, in the display device 100 provided by the embodiment of the application, the boundary of the orthographic projection of the bonding layer 11 on the plane of the display main body 101 is located in the orthographic projection of the bonding portion 102 on the plane of the display main body 101, so that the bonding of foreign matters due to the fact that the bonding layer 11 exceeds the area of the bonding portion 102 is avoided, the normal operation of the assembly process of the display product is ensured, and the quality of the product is improved.

Referring to fig. 3 and fig. 4 together, fig. 4 is a schematic cross-sectional view along line AA' in fig. 3.

In the present embodiment, the display main body 101 includes a display area 101A and a non-display area 101B provided on the peripheral side of the display area 101A. The display device 100 further includes a first support plate 12, a second support plate 13, and a buffer layer 14. The first support plate 12 is disposed on a side of the display main body 101 facing the binding portion 102. The second support plate 13 is disposed on a side of the binding portion 102 facing the display main body 101. The adhesive layer 11 is located between the first support plate 12 and the second support plate 13. The buffer layer 14 is disposed on a side of the first support plate 12 near the adhesive layer 11, and is disposed corresponding to the display area 101A.

The first support plate 12 is used for supporting the display main body 101, the second support plate 13 is used for supporting the binding portion 102, and the materials of the first support plate 12 and the second support plate 13 may be materials with supporting effects such as polyethylene terephthalate, and the materials of the first support plate 12 and the second support plate 13 are not specifically limited in this application.

The front projection of the binding portion 102 on the plane of the display main body 101 overlaps with the front projection of the second support plate 13 on the plane of the display main body 101.

The buffer layer 14 is disposed on a portion of the display body 101 located in the display area 101A, and an orthographic projection of the buffer layer 14 on a plane of the display body 101 overlaps a portion of the display body 101 located in the display area 101A.

In this embodiment, the buffer layer 14 mainly plays a role of buffering, so as to prevent the display device from being impacted during handling and the like to affect the product quality. Further, the buffer layer 14 also has a heat dissipation function, which is used for dissipating heat of the display main body 101, so that the situation that the display main body 101 cannot dissipate heat due to too high temperature during operation is avoided, and the service life of the display product is prolonged.

Alternatively, the material of the buffer layer 14 may be a material with good heat dissipation effect, such as foam, copper foil, diamond, silver, or graphene. In this embodiment, the material of the buffer layer 14 is foam.

It should be noted that, in the present application, the buffer layer 14 only corresponds to a portion of the display main body 101 located in the display area 101A, and in some embodiments, the buffer layer 14 may also be disposed at a local position of the display main body 101, or may also correspond to the entire display main body 101, which is not described herein.

In the present embodiment, the adhesive layer 11 includes a base material layer and adhesive layers disposed on both sides of the base material layer. The material of the substrate layer can be polyethylene terephthalate, and the adhesive layer can be pressure-sensitive adhesive. Of course, the material of the adhesive layer 11 may be other materials with an adhesive effect, and the film structure and the material of the adhesive layer 11 are not particularly limited in this application.

It should be noted that the display device 100 in the present application further includes a polarizer 15, an optical adhesive layer 16, a cover plate 17, and an ultraviolet adhesive layer 18, which are not described herein.

Further, in the present embodiment, the binding portion 102 includes a first sub-binding portion 1021 and a second sub-binding portion 1022 connected to the first sub-binding portion 1021. The first sub-binding portion 1021 is located at a side of the second sub-binding portion 1022 away from the bending portion 103. One end of the first sub-binding portion 1021 near the bending portion 103 is flush with one end of the buffer layer 14 near the bending portion 103. The boundary of the orthographic projection of the adhesive layer 11 on the plane of the display main body 101 is located in the orthographic projection of the first sub-binding portion 1021 on the plane of the display main body 101.

Referring to fig. 5, fig. 5 is a schematic partial structure of a display device according to an embodiment of the disclosure. In the display device 100 of the present embodiment, a portion of the display main body 101 located in the non-display area 101B includes a first portion 1011, and a second portion 1012 and a third portion 1013 connected to both ends of the first portion 1011. The first portion 1011 is connected to the bending portion 103. The side of the first portion 1011 near the bending portion 103 is a plane. The second portion 1012 and the third portion 1013 have an arc surface on a side near the bending portion 103.

The side of the bending portion 103, which is close to the second portion 1012 along the direction perpendicular to the central axis OO' of the display main body 101, is orthographic projected on the plane of the display main body 101 as a first edge 103a. The side of the first portion 1011 near the second portion 1012 is projected as a second side 1011a on the plane of the display main body 101. The first edge 103a is located on a side of the second edge 1011a adjacent to the third portion 1013.

In some embodiments, the extension line of the first edge 103a coincides with the second edge 1011a, which is not described herein.

Fig. 5 and fig. 6 are schematic diagrams of structures of a first pattern and a second pattern in the display device according to the embodiment of the present application.

In this embodiment, the orthographic projection of the first sub-binding portion 1021 on the plane of the display main body 101 is the first pattern 1021A. The first pattern 1021A includes a first straight edge 1021A, a first curved edge 1021b, and a second straight edge 1021c that are sequentially connected. The first straight edge 1021A is an edge of the first pattern 1021A near the second sub-binding portion 1022. The second straight edge 1021c is perpendicular to the extending direction of the first straight edge 1021a. The first arc edge 1021b is a concave arc edge.

The orthographic projection of the adhesive layer 11 on the plane of the display body 101 is a second pattern 11A. The second pattern 11A includes a third straight edge 11A, a second arc edge 11b, and a fourth straight edge 11c connected in sequence. The third straight edge 11a corresponds to the first straight edge 1021a. The fourth straight edge 11c corresponds to the second straight edge 1021c. Specifically, the third straight edge 11a is parallel to the first straight edge 1021a. The fourth straight edge 11c is parallel to the second straight edge 1021c.

The second arc edge 11b corresponds to the first arc edge 1021b, and a tolerance distance is between the second arc edge 11b and the first arc edge 1021 b.

It can be understood that, in the display device 100 of the present embodiment, the use process of the adhesive layer 11 includes the following steps: firstly, attaching the adhesive layer 11 on the buffer layer 14 so that one end of the adhesive layer 11 close to the binding portion 102 is flush with one end of the buffer layer 14 close to the binding portion 102; next, the binding portion 102 is bent to the backlight side of the display main body 101, and a bending portion 103 is formed between the display main body 101 and the binding portion 102, wherein one side of the adhesive layer 11 close to the binding portion 102 is adhered to the second support plate 13, so that the binding portion 102 is fixed to the backlight side of the display main body 101, and the adhesive layer 11 is disposed corresponding to the first sub-binding portion 1021.

Since the adhesive layer 11 may generate an attaching deviation during the attaching process, the alignment between the adhesive layer 11 and the first sub-binding portion 1021 may be affected. Further, for the alignment of the first pattern 1021A and the second pattern 11A, the alignment difficulty between the arc edges is greater than the alignment between the straight edges. In this embodiment, a tolerance distance is provided between the second arc edge 11b and the first arc edge 1021b, so that in the attaching process of the adhesive layer 11, an error allowable space exists between the second arc edge 11b and the first arc edge 1021b in alignment, and thus the attaching difficulty of the adhesive layer 11 can be reduced, and the difficulty of process operation is reduced.

Specifically, in this embodiment, when the second arc edge 11b and the first arc edge 1021b are both arc edges, the center of the circle where the first arc edge 1021b is located is in line with the center of the circle where the second arc edge 11b is located, and at this time, the tolerance distance is calculated by: the straight line extends to the second arc edge 11b and the first arc edge 1021b, the straight line has an intersection point with the second arc edge 11b and the first arc edge 1021b, and the distance between the tangent lines at the intersection point of the second arc edge 11b and the first arc edge 1021b is the tolerance distance between the second arc edge 11b and the first arc edge 1021 b. When the second arc edge 11b and the first arc edge 1021b are both non-arc edges, the tolerance distance can be calculated by the average curvature of the second arc edge 11b and the average curvature of the first arc edge 1021b, which will not be described herein.

Specifically, the tolerance distance is greater than or equal to 0.2 mm. The tolerance distance may be 0.2 mm, 0.25 mm, 0.3 mm, or the like, and the specific size of the tolerance distance may be set according to the product size, which is not limited in this application.

Further, in this embodiment, the tolerance distance is provided between each side of the second pattern 11A and each side corresponding to the first pattern 1021A, so that the overall attaching difficulty of the adhesive layer 11 can be further reduced.

In this application, the second pattern 11A may be formed by a cutting process, and the specific forming process of the second pattern 11A is not specifically limited in this embodiment.

In some embodiments, the boundary of the orthographic projection of the adhesive layer 11 on the plane of the display main body 101 coincides with the boundary of the orthographic projection of the first sub-binding portion 1021 on the plane of the display main body 101, and this arrangement can enhance the adhesive effect between the second support plate 13 and the first support plate 12, so as to be beneficial to improving the stability of the product.

The display device 100 provided in the embodiment of the application includes a display panel 10 and an adhesive layer 11, the display panel 10 includes a display main body 101, a binding portion 102, and a bending portion 103 connected between the display main body 101 and the binding portion 102, and the binding portion 102 is disposed on a backlight side of the display main body 101. According to the method, the bonding layer 11 is located in the front projection of the plane where the display main body 101 is located at the boundary of the front projection of the plane where the binding portion 102 is located in the front projection of the plane where the display main body 101 is located, bonding of foreign matters due to the fact that the bonding layer 11 exceeds the area where the binding portion 102 is located is avoided, normal operation of the assembly process of a display product is guaranteed, and product quality is improved.

It should be noted that, the display device 100 of the present application further includes a driving chip, a flexible circuit board, and other structures (not shown in the drawings), wherein the driving chip is electrically connected to the binding portion 102, and the positional relationship between the driving chip and the flexible circuit board can be referred to the prior art, which is not described herein again.

The embodiment of the present application further provides an electronic device, which includes a display device, and the structure of the display device may be referred to the description of the display device 100 in the foregoing embodiment, which is not repeated herein. The electronic device may be a smart phone, a notebook computer, a tablet computer, a smart watch, or the like, which is not limited in this application.

Compared with the display device in the prior art, the display device that this application provided includes display panel and tie coat, display panel includes the display main part, bind the portion and connect the kink between display main part and bind the portion, bind the portion and set up the side in a poor light at the display main part, this application is through making the tie coat in the planar orthographic projection that display main part place boundary is located the portion of binding in the planar orthographic projection that display main part place, avoided bonding foreign matter because of the tie coat surpasss the region that binds the portion place to guaranteed the normal clear of display product packaging process, and then promoted the product quality.

The foregoing has provided a detailed description of embodiments of the present application, with specific examples being set forth herein to provide a thorough understanding of the present application. Meanwhile, those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, and the present description should not be construed as limiting the present application in view of the above.