阅读说明：本技术 中框及显示装置 (Middle frame and display device ) 是由 杨宝磊 于 2021-07-08 设计创作，主要内容包括：本申请实施例提供一种中框及显示装置,中框包括贴合面、外侧面和内侧面。贴合面上设置有引流槽。外侧面上设置有导流槽和储胶槽。导流槽的一端与引流槽连通。导流槽的另一端与储胶槽连接。引流槽的宽度小于导流槽的宽度。导流槽的宽度小于储胶槽的宽度。当框胶点在贴合面后,框胶会由贴合面流入引流槽、导流槽和储胶槽中。当显示面板贴合时,储存在引流槽、导流槽和储胶槽中的框胶就会反向流入并填满显示面板与中框间的缝隙。采用上述设置,可以最大程度上保证贴合面积,保证贴合可靠性,同时也避免了框胶溢流进入显示区,提高了显示面板的良率。(The embodiment of the application provides a middle frame and a display device. The binding surface is provided with a drainage groove. The outer side surface is provided with a diversion trench and a glue storage trench. One end of the diversion trench is communicated with the drainage trench. The other end of the diversion trench is connected with the glue storage trench. The width of the drainage groove is less than that of the diversion groove. The width of the diversion trench is less than that of the glue storage trench. When the frame glue is dotted on the binding surface, the frame glue can flow into the drainage groove, the diversion groove and the glue storage groove from the binding surface. When the display panel is attached, the frame glue stored in the drainage groove, the diversion groove and the glue storage groove can reversely flow into and fill the gap between the display panel and the middle frame. By adopting the arrangement, the laminating area can be ensured to the maximum extent, the laminating reliability is ensured, meanwhile, the frame glue is prevented from overflowing into the display area, and the yield of the display panel is improved.)

1. The middle frame is characterized by comprising a binding surface, an outer side surface and an inner side surface, wherein the binding surface is positioned between the outer side surface and the inner side surface, and the outer side surface and the inner side surface are oppositely arranged; the adhesive surface is provided with a drainage groove, and the outer side surface is provided with a flow guide groove and a glue storage groove; one end of the diversion trench is communicated with the drainage trench, the other end of the diversion trench is connected with the glue storage trench, the width of the drainage trench is smaller than that of the diversion trench, and the width of the diversion trench is smaller than that of the glue storage trench.

2. The middle frame of claim 1, wherein the flow guide grooves include a first end and a second end that are opposite to each other, the first end is an end of the flow guide groove close to the attachment surface, the second end is an end of the flow guide groove far away from the attachment surface, and the width of the flow guide groove gradually increases along a direction from the first end to the second end.

3. The middle frame according to claim 1, wherein one side of the abutting surface, which is close to the outer side surface, is provided with an auxiliary drainage groove, and the auxiliary drainage groove is communicated with the drainage groove.

4. The middle frame of claim 3, wherein the width of the auxiliary drainage slots is equal to the width of the drainage slots.

5. The middle frame according to claim 3, wherein an auxiliary glue storage groove is formed in the outer side surface, the auxiliary glue storage groove is located on one side, close to the attachment surface, of the glue storage groove, the auxiliary glue storage groove is communicated with the flow guide groove, and the width of the auxiliary glue storage groove is larger than that of the flow guide groove.

6. The middle frame of claim 5, wherein the abutting surface is further provided with auxiliary guide grooves, the auxiliary guide grooves are communicated with the guide grooves, and the width of the auxiliary guide grooves is smaller than that of the guide grooves.

7. The middle frame of claim 1, wherein one end of the drainage groove extends to the outer side surface and the other end of the drainage groove extends to the inner side surface.

8. The middle frame of claim 1, wherein the widths of the drainage grooves, the diversion grooves and the glue storage grooves are all 0.04 mm to 0.2 mm.

9. The middle frame according to claim 1, wherein the drainage grooves are arranged in a plurality, the drainage grooves are parallel to each other, and the distance between the drainage grooves is 3 mm to 5 mm.

10. A display device, characterized in that it comprises a middle frame according to any one of claims 1 to 9.

Technical Field

The application relates to the field of display, in particular to a middle frame and a display device.

Background

At present, with the development of display technologies, the requirements of people on consumer electronics products are not limited to functionality alone, but also turn to aspects of design, artistry and good visual experience, such as the current prevailing ultra-narrow bezel display products.

Wherein, along with super narrow frame backlight unit is more and more limited, the width of display device's center also is littleer more and more. Due to the fact that the middle frame is narrowed, when the frame glue is attached, glue is broken due to the fact that too little glue is used, and the display effect is affected due to the fact that glue overflows and enters the display area. The reliability of the frame glue lamination quality has become a difficult point of the frame glue lamination scheme.

Therefore, how to prevent the bonding quality of the sealant from being affected by the narrowing of the middle frame of the display device is a difficult problem for panel manufacturers.

Disclosure of Invention

The embodiment of the application provides a middle frame and a display device, and aims to solve the technical problem that in the prior art, the gluing quality of frame glue is influenced due to the fact that the middle frame of a display panel is narrowed.

The embodiment of the application provides a middle frame, which comprises a binding surface, a lateral surface and a medial surface, wherein the binding surface is positioned between the lateral surface and the medial surface, and the lateral surface and the medial surface are oppositely arranged; the adhesive surface is provided with a drainage groove, and the outer side surface is provided with a flow guide groove and a glue storage groove; one end of the diversion trench is communicated with the drainage trench, the other end of the diversion trench is connected with the glue storage trench, the width of the drainage trench is smaller than that of the diversion trench, and the width of the diversion trench is smaller than that of the glue storage trench.

Optionally, in some embodiments of the present application, the flow guide groove includes a first end and a second end that are disposed opposite to each other, the first end is an end of the flow guide groove close to the attachment surface, the second end is an end of the flow guide groove far away from the attachment surface, and a width of the flow guide groove gradually increases along a direction from the first end to the second end.

Optionally, in some embodiments of the present application, an auxiliary drainage groove is disposed on one side of the abutting surface close to the outer side surface, and the auxiliary drainage groove is communicated with the drainage groove.

Optionally, in some embodiments of the present application, the auxiliary drainage slots have a width equal to the width of the drainage slots.

Optionally, in some embodiments of the present application, an auxiliary glue storage groove is disposed on the outer side surface, the auxiliary glue storage groove is located on one side of the glue storage groove close to the attachment surface, the auxiliary glue storage groove is communicated with the diversion trench, and the width of the glue storage groove is greater than the width of the diversion trench.

Optionally, in some embodiments of the present application, the abutting surface is further provided with an auxiliary flow guide groove, the auxiliary flow guide groove is communicated with the flow guide groove, and the width of the auxiliary flow guide groove is smaller than the width of the flow guide groove.

Optionally, in some embodiments of the present application, one end of the drainage channel extends to the outer side surface and the other end of the drainage channel extends to the inner side surface.

Optionally, in some embodiments of the present application, the widths of the drainage groove, the diversion groove and the glue storage groove are all 0.04 mm to 0.2 mm.

Optionally, in some embodiments of the present application, the drainage grooves are provided in a plurality, the plurality of drainage grooves are parallel to each other, and the distance between the drainage grooves is 3 mm to 5 mm.

Correspondingly, the embodiment of the application also provides a display device, and the display device comprises the middle frame.

The embodiment of the application adopts a middle frame and a display device, wherein the middle frame comprises a binding surface, an outer side surface and an inner side surface. The binding surface is provided with a drainage groove. The outer side surface is provided with a diversion trench and a glue storage trench. One end of the diversion trench is communicated with the drainage trench. The other end of the diversion trench is connected with the glue storage trench. The width of the drainage groove is less than that of the diversion groove. The width of the diversion trench is less than that of the glue storage trench. When the frame glue is dotted on the binding surface, the frame glue can flow into the drainage groove, the diversion groove and the glue storage groove from the binding surface. When the display panel is attached, the frame glue stored in the drainage groove, the diversion groove and the glue storage groove can reversely flow into and fill the gap between the display panel and the middle frame. By adopting the arrangement, the laminating area can be ensured to the maximum extent, the laminating reliability is ensured, meanwhile, the frame glue is prevented from overflowing into the display area, and the yield of the display panel is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a first implementation manner of a middle frame provided in an embodiment of the present application.

Fig. 2 is a partial schematic view of a structure at a of the middle frame provided in fig. 1.

Fig. 3 is a schematic structural diagram of a second implementation manner of a middle frame provided in an embodiment of the present application.

Fig. 4 is a top view of a second implementation of a middle frame provided in an example of the present application.

Fig. 5 is a schematic structural diagram of a third implementation manner of a middle frame provided in an example of the present application.

Fig. 6 is a left side view of a third implementation of a middle frame provided in an example of the present application.

Fig. 7 is a schematic structural diagram of a fourth implementation manner of a middle frame provided in an example of the present application.

Fig. 8 is a top view of a fourth implementation of a middle frame provided in the examples 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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "length," "width," "thickness," "upper," "lower," and the like, as used herein, refer to an orientation or positional relationship as shown in the drawings, which is used for convenience in describing the present application and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be taken as limiting the present application. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second", etc. may explicitly or implicitly include one or more of the described features and are therefore not to be construed as limiting the application.

The embodiment of the application provides a middle frame of a display panel and a display device. The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a first implementation manner of a middle frame provided in an embodiment of the present application, and fig. 2 is a partial schematic structural diagram of a position a of the middle frame provided in fig. 1. The middle frame 100 provided in the embodiment of the present application includes a fitting surface 100a, an outer side surface 100b, and an inner side surface 100 c. Abutment surface 100a is located between lateral side 100b and medial side 100 c. Lateral surface 100b and medial surface 100c are disposed opposite to each other;

the abutting surface 100a is provided with a drainage groove 101. The outer side surface 100b is provided with a diversion trench 102 and a glue storage trench 103. One end of the flow guide groove 102 communicates with the flow guide groove 101. The other end of the diversion trench 102 is connected with the glue storage trench 103. The width of channels 101 is less than the width of channels 102. The width of the diversion trench 102 is smaller than that of the glue storage trench 103.

The bonding surface 100a is a surface of the middle frame 100 coated with the sealant. The outer side 100b is a side of the middle frame 100 away from the display area. The inner side surface 100c is a surface of the middle frame 100 near the display area.

The height of the liquid rising in the capillary phenomenon can be obtained by the principle formula of the capillary phenomenon as described below.

H is the rising height of the liquid in the capillary phenomenon, sigma is surface tension, theta is the included angle between the liquid surface and the capillary wall, rho is the density of the liquid, g is gravity acceleration, and R is the radius of the capillary. Note that θ depends on factors such as the type of liquid, the material of the capillary wall, and the type of gas that comes into contact with the liquid.

Note that, the sealant is dropped on the bonding surface 100a of the middle frame 100. The abutting surface 100a of the middle frame 100 can be approximated to a groove with an infinite radius. Therefore, according to the principle of capillary phenomenon, the sealant flows from the bonding surface 100a of the middle frame 100 to the drainage groove 101. When the drainage groove 101 is filled, the sealant flows to the drainage groove 102 connected to the drainage groove and then flows to the sealant storage groove 103.

It should be noted that the sealant storage tank 103 can play a role of temporarily storing sealant. Therefore, the frame glue can be prevented from overflowing into the display area when the frame glue is excessive. Thereby avoiding the occurrence of bad display caused by the frame glue shielding the display picture pixel.

The width W1 of flow guide slot 101 is less than the width W2 of flow guide slot 102. The width W2 of the diversion trench 102 is smaller than the width W3 of the glue storage trench 103.

When the display module is attached to the middle frame 100, a very small gap is formed between the attachment surface 100a of the middle frame 100 and the display module. The gap may approximate a groove of infinite radius. Therefore, according to the capillary phenomenon principle, the sealant flows from the sealant storage groove 103 to the flow guide groove 102, then flows from the sealant storage groove 103 to the flow guide groove 101, and finally flows from the flow guide groove 101 to the bonding surface 100a of the middle frame 100 until the display module is completely bonded to the middle frame 100. Because the gap between the binding surface 100a of the middle frame 100 and the display module can be completely filled with the frame glue, the binding area can be ensured to the greatest extent, and the reliability of binding the frame glue can be improved.

Channel 102 includes oppositely disposed first and second ends 102a and 102 b. The first end 102a is an end of the guiding groove 102 close to the attaching surface 100 a. The second end 102b is an end of the guiding groove 102 away from the attachment surface 100 a. The width W2 of the diversion trench 102 gradually increases along the direction from the first end 102a to the second end 102 b.

It should be noted that when the display module is mounted on the middle frame 100, the sealant needs to flow from the sealant storage groove 103 to the guiding groove 102, and flow to the drainage groove 101 through the guiding groove 102. In this process, the sealant flows from one end of the guiding trench 102 far from the bonding surface 100a to one end of the guiding trench 102 close to the bonding surface 100 a. According to the capillary phenomenon, the sealant flows from the groove with a larger radius to the groove with a smaller radius. Therefore, the width W2 of the guiding trench 102 is gradually increased along the direction from the first end 102a to the second end 102b, which is helpful for the sealant to flow from the second end 102b of the guiding trench 102 to the first end 102a of the guiding trench 102, so that the sealant can completely fill the gap between the bonding surface 100a of the middle frame 100 and the display module, thereby ensuring the bonding area to the greatest extent and improving the reliability of the sealant bonding.

One end of the drainage groove 101 extends to the outer side surface 100 b. The other end of drainage channel 101 extends to inner side surface 100 c.

It should be noted that, by extending one end of the drainage groove 101 to the outer side surface 100b and extending the other end of the drainage groove 101 to the inner side surface 100c, the sealant can be prevented from gathering at a certain position of the bonding surface 100 a.

The drainage grooves 101 are perpendicular to the outer side surface 100b of the middle frame 100. The guiding groove 102 is perpendicular to the abutting surface 100a of the middle frame 100. The glue storage tank 103 is perpendicular to the diversion trench 102.

It should be noted that, when the sealant flows from the sealant storage tank 103 to the guiding groove 102 and flows to the drainage groove 101 through the guiding groove 102, the force to be overcome is the gravity of the sealant according to the capillary phenomenon. Therefore, the drainage groove 101 is perpendicular to the outer side surface 100b of the middle frame 100, the guiding groove 102 is perpendicular to the binding surface 100a of the middle frame 100, and the glue storage groove 103 is perpendicular to the guiding groove 102, so that more frame glue can flow to the guiding groove 102 through the glue storage groove 103 and flow to the drainage groove 101 through the guiding groove 102 under the condition that the widths of the drainage groove 101, the guiding groove 102 and the glue storage groove 103 are not changed. By adopting the arrangement, the quantity of the frame glue stored in the drainage groove 101, the diversion groove 102 and the glue storage groove 103 can be increased, and the display effect of the display device is favorably prevented from being influenced by the excessive overflow of the frame glue entering other areas.

The width W1 of drainage channel 101 is 0.04 mm to 0.2 mm. Specifically, the width W1 of drainage slot 101 is 0.04 millimeters, 0.06 millimeters, 0.08 millimeters, 0.11 millimeters, 0.14 millimeters, 0.17 millimeters, or 0.2 milliseconds. The specific width W1 of the drainage channel 101 is determined by the process requirements of the middle frame 100 of the display module.

The width W2 of the diversion trench 102 is 0.04 mm to 0.2 mm. Specifically, the width W2 of the channels 102 is 0.04 mm, 0.06 mm, 0.08 mm, 0.11 mm, 0.14 mm, 0.17 mm, or 0.2 msec. The specific width W2 of the diversion trench 102 is determined by the process requirements of the middle frame 100 of the display module.

The width W3 of the glue storage tank 103 is 0.04 mm to 0.2 mm. Specifically, the width W3 of the glue reservoir 103 is 0.04 mm, 0.06 mm, 0.08 mm, 0.11 mm, 0.14 mm, 0.17 mm, or 0.2 msec. The specific width W3 of the glue storage tank 103 is determined by the process requirements of the middle frame 100 of the display module.

A plurality of drainage grooves 101 are provided, and the plurality of drainage grooves 101 are parallel to each other. The spacing D1 of drainage slots 101 is 3 mm to 5 mm. Specifically, the spacing D1 of drainage slots 101 is 3 millimeters, 3.2 millimeters, 3.4 millimeters, 3.7 millimeters, 4 millimeters, 4.5 millimeters, or 5 milliseconds. The specific spacing D1 of the drainage slots 101 is determined by the process requirements of the middle frame 100 of the display module.

The cross sections of the drainage grooves 101, the flow guide grooves 102 and the glue storage grooves 103 are rectangular, trapezoidal or semicircular. From the consideration of surface energy per unit volume area and process angle, when the cross sections of the drainage groove 101, the diversion groove 102 and the glue storage groove 103 are semicircular, the reliability of the gluing of the frame glue is the highest.

Referring to fig. 3 and 4, fig. 3 is a schematic structural diagram of a second implementation manner of a middle frame provided in the embodiment of the present application, and fig. 3 is a top view of the second implementation manner of the middle frame provided in the embodiment of the present application. As shown in fig. 3 and 4, the middle frame provided in fig. 3 differs from the middle frame provided in fig. 1 in that: the side of the abutting surface 100a close to the outer side surface 100b is provided with an auxiliary drainage groove 104. Auxiliary drainage channels 104 communicate with drainage channels 101.

The width W4 of auxiliary drainage slots 104 is equal to the width W1 of drainage slots 101. Since the width W2 of guide channel 102 is greater than the width W1 of guide channel 101, the width W2 of guide channel 102 is also greater than the width W4 of auxiliary guide channel 104.

When the sealant is used to mount the display module and the middle frame 100 together, the sealant flows from the drainage grooves 101 to the bonding surface 100a of the middle frame 100. When the sealant flows to the flow guide grooves 101 through the flow guide grooves 102, since the width W2 of the flow guide grooves 102 is also greater than the width W4 of the auxiliary flow guide grooves 104, a part of the sealant also flows to the auxiliary flow guide grooves 104 through the flow guide grooves 102 according to the principle of capillary phenomenon.

In addition, the width W4 of auxiliary drainage slots 104 is equal to the width W1 of drainage slots 101. The sealant in the flow guide groove 102 flowing to the auxiliary flow guide groove 104 is not captured by the flow guide groove 101. Auxiliary flow guide grooves 104 do not capture the frame adhesive flowing from flow guide grooves 102 to flow guide grooves 101. Therefore, the auxiliary drainage grooves 104 can increase the speed at which the sealant can infiltrate the gap between the adhering surface 100a of the middle frame 100 and the display module.

A plurality of drainage grooves 101 are provided. The auxiliary drainage channels 104 communicate with at least one of the drainage channels 101. When the auxiliary drainage grooves 104 are communicated with all the drainage grooves 101, the auxiliary drainage grooves 104 have the best effect of increasing the speed at which the sealant infiltrates the joint surface 100a of the middle frame 100 and the gap between the display modules.

Auxiliary drainage slots 104 are perpendicular to drainage slots 101. The width W1 of auxiliary drainage slots 104 is 0.04 mm to 0.2 mm. Specifically, the width W1 of the auxiliary drainage slots 104 is 0.04 mm, 0.06 mm, 0.08 mm, 0.11 mm, 0.14 mm, 0.17 mm, or 0.2 msec. The specific width W1 of the auxiliary conduction groove 104 is determined by the process requirements of the middle frame 100 of the display module.

Referring to fig. 5 and fig. 6, fig. 5 is a schematic structural diagram of a third implementation manner of a middle frame provided in the embodiment of the present application, and fig. 4 is a left side view of the third implementation manner of the middle frame provided in the embodiment of the present application. The middle box provided in fig. 5 differs from the middle box provided in fig. 1 in that: an auxiliary glue storage tank 105 is arranged on the outer side surface 100 b. The auxiliary glue storage groove 105 is located on one side of the glue storage groove 103 close to the adhering surface 100a, and the auxiliary glue storage groove 105 is communicated with the diversion groove 102. The width W5 of the auxiliary glue storage tank 105 is larger than the width W2 of the glue storage tank 103.

It should be noted that, because the amount of the sealant for attaching the middle frame 100 to the display module is large, the sealant drainage grooves 101, the flow guide grooves 102, and the sealant storage grooves 103 may not be able to store the sealant completely. The auxiliary glue storage grooves 105 are all communicated with the flow guide groove 102, so that the amount of the frame glue stored in the middle frame 100 can be increased. Therefore, the auxiliary glue storage tank 105 can prevent the frame glue from overflowing into other areas, prevent the frame glue from influencing the display effect of the display module, ensure the bonding area to the maximum extent and improve the bonding reliability of the frame glue.

In addition, the height of the liquid rising is limited according to the formula of the principle of the capillary phenomenon. By arranging a plurality of auxiliary glue storage grooves 105 on the side of the glue storage groove 103 close to the binding surface 100a, the height of the middle frame glue of the flow guide groove 102, which needs to rise, can be reduced. Therefore, the auxiliary glue storage groove 105 can prevent the sealant in the guiding groove 102 from flowing into the drainage groove 101 due to insufficient pulling force, thereby improving the reliability of sealant bonding.

It should be noted that the auxiliary glue storage tank 105 is perpendicular to the flow guide tank 102. The width W5 of the auxiliary glue storage tank 105 is 0.04 mm to 0.2 mm. Specifically, the width W5 of the auxiliary glue tank 105 is 0.04 mm, 0.06 mm, 0.08 mm, 0.11 mm, 0.14 mm, 0.17 mm, or 0.2 msec. The specific width W5 of the auxiliary glue storage tank 105 is determined by the process requirements of the middle frame 100 of the display module.

Referring to fig. 7 and 8, fig. 7 is a schematic structural diagram of a fourth implementation manner of a middle frame provided in the embodiment of the present application, and fig. 7 is a top view of the fourth implementation manner of the middle frame provided in the embodiment of the present application. The middle box provided in fig. 7 differs from the middle box provided in fig. 5 in that: the abutting surface 100a is further provided with auxiliary guide grooves 106, and the auxiliary guide grooves 106 are communicated with the guide grooves 101. The width W6 of auxiliary channel 106 is less than the width W2 of channel 102.

It should be noted that when the sealant is used to mount the display module and the middle frame 100 together, there is a very small gap between the bonding surface 100a of the middle frame 100 and the display module. The gap may approximate a groove of infinite radius. Therefore, according to the principle of capillary phenomenon, the sealant flows not only from the drainage grooves 101 and the auxiliary drainage grooves 104 to the adhering surface 100a of the middle frame 100, but also from the auxiliary drainage grooves 106 to the adhering surface 100a of the middle frame 100 until the display module is completely adhered to the middle frame 100. Therefore, the auxiliary guiding groove 106 can increase the speed at which the sealant can infiltrate the gap between the adhering surface 100a of the middle frame 100 and the display module.

After the sealant is dropped on the bonding surface 100a of the middle frame 100, the bonding surface 100a of the middle frame 100 may be approximately a groove with an infinite radius. Therefore, according to the principle of capillary phenomenon, the sealant flows from the bonding surface 100a of the middle frame 100 to the drainage grooves 101, the auxiliary drainage grooves 104, and the auxiliary drainage grooves 106. In addition, width W6 of auxiliary channel 106 is less than width W2 of channel 102. The sealant flowing to the auxiliary flow guide groove 106 will not be captured by the flow guide groove 102. Therefore, the auxiliary flow guide groove 106 can temporarily store the sealant, so that the sealant can be prevented from overflowing into the display region when the sealant is too much. Thereby avoiding the occurrence of bad display caused by the frame glue shielding the display picture pixel.

It should be noted that auxiliary channels 106 are perpendicular to channels 101. The width W6 of the auxiliary guide groove 106 is 0.04 mm to 0.2 mm. Specifically, the width W6 of the auxiliary guide groove 106 is 0.04 mm, 0.06 mm, 0.08 mm, 0.11 mm, 0.14 mm, 0.17 mm, or 0.2 msec. The specific width W6 of the auxiliary guiding groove 106 is determined by the process requirements of the middle frame 100 of the display module.

In the middle frame provided by the embodiment of the application, the middle frame comprises a binding surface, an outer side surface and an inner side surface. The binding surface is provided with a drainage groove. The outer side surface is provided with a diversion trench and a glue storage trench. One end of the diversion trench is communicated with the drainage trench. The other end of the diversion trench is connected with the glue storage trench. The width of the drainage groove is less than that of the diversion groove. The width of the diversion trench is less than that of the glue storage trench. When the frame glue is dotted on the binding surface, the frame glue can flow into the drainage groove, the diversion groove and the glue storage groove from the binding surface. When the display panel is attached, the frame glue stored in the drainage groove, the diversion groove and the glue storage groove can reversely flow into and fill the gap between the display panel and the middle frame. By adopting the arrangement, the laminating area can be ensured to the maximum extent, the laminating reliability is ensured, meanwhile, the frame glue is prevented from overflowing into the display area, and the yield of the display panel is improved.

Correspondingly, the embodiment of the application also provides a display device. The display device includes the middle frame 100 described above. The display device provided by the embodiment of the application can be at least one of a smart phone, a tablet computer, a mobile phone, a video phone, an e-book reader, a laptop computer, a netbook, a workstation, a server, a personal digital assistant, a portable media player, an MP3 player, a mobile medical machine, a camera, a game console, a digital camera, a car navigator, an electronic billboard, an automatic teller machine, a smart bracelet, a smart watch, a virtual reality device, or a wearable device. The foregoing embodiment has described the middle frame 100 in detail, and therefore, in the embodiment of the present application, too much description is not repeated for the middle frame 100.

In the display device provided by the embodiment of the application, the middle frame comprises a binding surface, an outer side surface and an inner side surface. The binding surface is provided with a drainage groove. The outer side surface is provided with a diversion trench and a glue storage trench. One end of the diversion trench is communicated with the drainage trench. The other end of the diversion trench is connected with the glue storage trench. The width of the drainage groove is less than that of the diversion groove. The width of the diversion trench is less than that of the glue storage trench. When the frame glue is dotted on the binding surface, the frame glue can flow into the drainage groove, the diversion groove and the glue storage groove from the binding surface. When the display panel is attached, the frame glue stored in the drainage groove, the diversion groove and the glue storage groove can reversely flow into and fill the gap between the display panel and the middle frame. By adopting the arrangement, the laminating area can be ensured to the maximum extent, the laminating reliability is ensured, meanwhile, the frame glue is prevented from overflowing into the display area, and the yield of the display panel is improved.

The foregoing detailed description is directed to a middle frame and a display device provided in the embodiments of the present application, and specific examples are applied in the description to explain the principles and implementations of the present application, and the description of the foregoing embodiments is only used to help understand the method and the core ideas of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.