Display module and display device

Abstract

The utility model discloses a display module and a display device.The display module comprises a box dam and a bonding piece, the bonding piece is arranged on the surface, away from a display part, of a binding part, and a part of the bonding piece extends in the direction of a protective layer and is connected with the protective layer; a cavity is defined by the bonding part, the binding part and the protective layer, an open groove is formed in the surface of the side, close to the display part, of the bonding part, the open groove is communicated with the cavity and extends to the edge of the bonding part, openings are formed in the two sides of the cavity, and box dams are arranged on the two sides of the cavity. The opening is filled with a part of the box dam; in the film closing process of low-pressure injection molding of the display device, when the bonding piece is pressed, air flow in the cavity can flow out along the open groove, so that residual air in the open groove is prevented from entering the box dam, and the problem of bad bubbles of the display module is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display module and a display device. BACKGROUND

[0002] The organic light-emitting display module includes an organic light-emitting display panel, a protective layer, an adhesive tape and a driving chip. The organic light-emitting display panel includes a display part, a bending part and a binding part. The protective layer is arranged outside the bending part and extends towards the binding part. The adhesive tape is fixed to the binding part, and a part of the adhesive tape extends onto the protective layer. The driving chip is fixed to the adhesive tape. In order to improve the mechanical properties of the organic light-emitting display device, glue is injected around the display module of the organic light-emitting display device. Since the end of the protective layer located at the binding part has a ramp, a gap is formed between the adhesive tape and the end of the protective layer. When the organic light-emitting display device is subjected to low-pressure injection molding and film bonding, the display module is prone to the problem of air bubble defects. CONTENT OF THE UTILITY MODEL

[0003] Embodiments of the present application provide a display module and a display device to improve the problem of air bubble defects of the display module.

[0004] In a first aspect, embodiments of the present application provide a display module, comprising:

[0005] a display panel, the display panel including a display part, a first bending part and a binding part, the first bending part being located between the display part and the binding part;

[0006] a protective layer, the protective layer being arranged outside the first bending part, and a part of the protective layer extending towards the binding part and being connected with the binding part;

[0007] an adhesive member, the adhesive member being arranged on a surface of the binding part away from the display part, a part of the adhesive member extending towards the protective layer and being connected with the protective layer, a cavity being formed between the adhesive member, the binding part and the protective layer, a surface of one side of the adhesive member close to the display part being provided with a slot, the slot being in communication with the cavity, the slot extending to an edge of the adhesive member, and both sides of the cavity having openings;

[0008] a dam, the dam being located on both sides of the cavity, and a part of the dam filling the openings.

[0009] Further, the protective layer includes a second bending part and a first horizontal part, and the second bending part covers the first bending part.

[0010] The bonding member comprises a second horizontal part, an inclined part and a third horizontal part, the inclined part is located between the second horizontal part and the third horizontal part, the second horizontal part is fixed with the binding part, and the third horizontal part is fixed with the first horizontal part; wherein, a part of the slot is located on the inclined part, another part of the slot is located on the second horizontal part, and the end of the slot is located on the edge of the second horizontal part away from the first bending part.

[0011] Further, the slot extends towards the second horizontal part, and the end of the slot is located on the edge of the second horizontal part away from the first bending part.

[0012] Further, the slot comprises a first slot part and a second slot part, the first slot part is in communication with the cavity, the second slot part is in communication with the first slot part, and the edge of the second slot part is located on the edge of the second horizontal part, wherein the first slot part extends towards a first direction of the display module, and the second slot part extends towards a second direction of the display module, wherein the second direction intersects the first direction.

[0013] Further, the slot further comprises a guide part, the guide part is located between the first slot part and the second slot part, and the side wall of the guide part is in a circular arc shape.

[0014] Further, the slot is formed in the edge region of the bonding member.

[0015] Further, the area of the opening of the side of the slot close to the cavity is greater than the area of the opening of the side of the slot away from the cavity.

[0016] Further, the slot is provided as two, the two slots are respectively formed in the edges of the two sides of the bonding member, and the two slots are oppositely arranged.

[0017] Further, the depth of the slot is less than the thickness of the bonding member.

[0018] In a second aspect, the embodiments of the present application provide a display device, comprising the display module, the display device further comprises a middle frame, a cover plate and a frame glue, the display panel is on the middle frame, the cover plate is arranged on the display panel, a filling area is formed between the middle frame, the cover plate and the first bending part of the display panel, a part of the frame glue is filled in the filling area, and a part of the frame glue is connected with the dam.

[0019] The present application has the following beneficial effects:

[0020] The application provides a display module, which comprises a dam and an adhesive piece, the adhesive piece is arranged on a surface of the binding part away from the display part, a part of the adhesive piece extends towards the direction of the protective layer and is connected with the protective layer, a cavity is formed among the adhesive piece, the binding part and the protective layer, a groove is arranged on a surface of a side of the adhesive piece close to the display part, the groove is communicated with the cavity, the groove extends to the edge of the adhesive piece, both sides of the cavity are provided with openings, and the dam is arranged on both sides of the cavity, and a part of the dam fills the openings; during the film combining process of low-pressure injection molding of the display device, when the adhesive piece is subjected to pressure, the airflow in the cavity can flow out along the groove, so that the gas remaining in the groove enters the dam is reduced, and the problem of bubble defect of the display module is improved.

[0021] The application provides a display device, which comprises the display module, the display device further comprises a middle frame, a cover plate and a frame adhesive, the display panel is arranged on the middle frame, the cover plate is arranged on the display panel, a filling area is formed among the middle frame, the cover plate and the first bending part of the display panel, a part of the frame adhesive fills in the filling area, and a part of the frame adhesive is connected with the dam; the display module comprises a dam and an adhesive piece, the adhesive piece is arranged on a surface of the binding part away from the display part, a part of the adhesive piece extends towards the direction of the protective layer and is connected with the protective layer, a cavity is formed among the adhesive piece, the binding part and the protective layer, a groove is arranged on a surface of a side of the adhesive piece close to the display part, the groove is communicated with the cavity, the groove extends to the edge of the adhesive piece, both sides of the cavity are provided with openings, and the dam is arranged on both sides of the cavity, and a part of the dam fills the openings; during the film combining process of low-pressure injection molding of the display device, since a part of the dam fills the openings, the liquid adhesive used for forming the frame adhesive can be prevented from entering the cavity through the openings and overflowing into the display module of the display device, the performance of the display device is prevented from being abnormal, and further, the groove is arranged on a surface of a side of the adhesive piece close to the display part, the groove is communicated with the cavity, and the groove extends to the edge of the adhesive piece, when the adhesive piece is subjected to pressure during the film combining process of low-pressure injection molding of the display device, the airflow in the cavity can flow out along the groove, the gas remaining in the groove enters the dam is reduced, and then the gas in the groove enters the frame adhesive, so that the problem of bubble defect of the display device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 FIG. 1 is a schematic diagram of the display device of the application;

[0023] Figure 2 isFigure 2 A schematic diagram of the internal structure of the display device at position A shown;

[0024] Figure 3 This is a schematic diagram of the display module of the display device of this application having a dam structure;

[0025] Figure 4 This is a schematic diagram of the display module of the display device in this application without a dam structure;

[0026] Figure 5 This is a cross-sectional view of the BB′ position of the display device of this application;

[0027] Figure 6 This is a schematic diagram of the display device of this application without the bezel adhesive.

[0028] Figure 7 This is a schematic diagram of the adhesive component of the display module of the display device of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 10-Display device; 100-Display panel; 110-Display section; 120-First bending section; 130-Binding section; 200-Protective layer; 210-Second bending section; 220-First horizontal section; 300-Adhesive component; 310-Groogging; 311-First groove; 312-Second groove; 313-Guide section; 320-Second horizontal section; 330-Inclined section; 340-Third horizontal section; 400-Cavity; 410-Opening; 500-Damage enclosure; 600-Middle frame; 700-Cover plate; 800-Frame adhesive; 900-Filling area. Detailed Implementation

[0031] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings. The technical solutions described below are for illustrative purposes only and should not be construed as limiting the scope of protection of this application.

[0032] Furthermore, the terms "first," "second," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different technical features. The terms "multiple" and similar words indicate two or more unless otherwise expressly specified.

[0033] The first embodiment of this application provides a display module, referencing... Figures 1-4 The display module includes a display panel 100, a protective layer 200, an adhesive component 300, and a retaining wall 500.

[0034] Specifically, the display panel 100 comprises a display part 110, a first bending part 120 and a binding part 130, the first bending part 120 is located between the display part 110 and the binding part 130; the protective layer 200 is arranged on the outer side of the first bending part 120, and a part of the protective layer 200 extends towards the direction of the binding part 130 and is connected with the binding part 130; the adhesive 300 is arranged on the surface of the binding part 130 away from the display part 110, a part of the adhesive 300 extends towards the direction of the protective layer 200 and is connected with the protective layer 200, the adhesive 300, the binding part 130 and the protective layer 200 form a cavity 400, the surface of the side of the adhesive 300 close to the display part 110 is provided with a slot 310, the slot 310 is communicated with the cavity 400, and the slot 310 extends to the edge of the adhesive 300, the cavity 400 has openings 410 on both sides; the dam 500 is located on both sides of the cavity 400, and a part of the dam 500 fills the openings 410.

[0035] In the conventional scheme, in order to improve the mechanical properties of the organic light emitting display device, adhesive is injected around the display module of the organic light emitting display device, since the protective layer 200 is located at the end of the binding part 130 and has a ramp, a gap is formed between the adhesive tape and the end of the protective layer 200, when the organic light emitting display device is subjected to low-pressure injection molding and film bonding, the display module is prone to the problem of bubble defects. By arranging the display module to comprise the dam 500 and the adhesive 300, the adhesive 300 is arranged on the surface of the binding part 130 away from the display part 110, a part of the adhesive 300 extends towards the direction of the protective layer 200 and is connected with the protective layer 200, the adhesive 300, the binding part 130 and the protective layer 200 form a cavity 400, the surface of the side of the adhesive 300 close to the display part 110 is provided with a slot 310, the slot 310 is communicated with the cavity 400, and the slot 310 extends to the edge of the adhesive 300, the cavity 400 has openings 410 on both sides, and the dam 500 is arranged on both sides of the cavity 400, and a part of the dam 500 fills the openings 410; when the adhesive 300 is subjected to pressure during the low-pressure injection molding and film bonding process of the display device, the airflow in the cavity 400 can flow out along the slot 310, thereby reducing the entry of the residual gas in the slot 310 into the dam 500, and improving the problem of bubble defects of the display module.

[0036] In the present embodiment, reference is made to Figure 3The protection layer 200 includes a second bending part 210 and a first horizontal part 220, the second bending part 210 covers the first bending part 120; the adhesive 300 includes a second horizontal part 320, an inclined part 330 and a third horizontal part 340, the inclined part 330 is between the second horizontal part 320 and the third horizontal part 340, the second horizontal part 320 is fixed with the binding part 130, and the third horizontal part 340 is fixed with the first horizontal part 220; wherein a part of the slot 310 is on the inclined part 330, another part of the slot 310 is on the second horizontal part 320, and the end of the slot 310 is on the edge of the second horizontal part 320. By setting a part of the slot 310 on the inclined part 330, another part of the slot 310 on the second horizontal part 320, and the end of the slot 310 on the edge of the second horizontal part 320, when the adhesive 300 is under pressure during the low-pressure injection molding process of the display device, the airflow in the cavity 400 can flow out along the inclined part 330 and the second horizontal part 320, thereby reducing the gas remaining in the slot 310 from entering the dam 500, and improving the problem of bubbles in the display module.

[0037] In this embodiment, the slot 310 extends towards the second horizontal part 320, and the end of the slot 310 is on the edge of the side of the second horizontal part 320 away from the first bending part 120.

[0038] In this embodiment, referring to Figure 7The slot 310 includes a first slot 311 and a second slot 312. The first slot 311 communicates with the cavity 400, and the second slot 312 communicates with the first slot 311. The edge of the second slot 312 is located at the edge of the second horizontal portion 320. The first slot 311 extends toward the first direction X of the display module, and the second slot 312 extends toward the second direction Y of the display module. The second direction Y intersects with the first direction X. By configuring the slot 310 to include a first slot 311 and a second slot 312, the first slot 311 communicates with the cavity 400, and the second slot 312 communicates with the first slot 311. The edge of the second slot 312 is located at the edge of the second horizontal portion 320. The first slot 311 extends toward the first direction X of the display module, and the second slot 312 extends toward the second direction Y of the display module. It is not necessary to extend the slot 310 to the edge of the second horizontal portion 320 away from the first bending portion 120. This reduces the length of the slot 310, thereby reducing the path of airflow in the cavity 400 within the slot 310. This is more conducive to the exhaust of gas from the cavity 400, and further improves the problem of bubble defects in the display module.

[0039] In this embodiment, the first direction X is the same as the length direction of the display module, and the second direction Y is the same as the width direction of the display module.

[0040] In this embodiment, the angle formed by the first direction X and the second direction Y is 80° to 100°. Preferably, the angle formed by the second direction Y and the second direction Y is 80°, 82°, 84°, 86°, 88°, 90°, 92°, 94°, 96°, 98° or 100°.

[0041] In this embodiment, reference Figure 7 The slot 310 further includes a guide portion 313, which is located between the first slot 311 and the second slot 312. The sidewall of the guide portion 313 is arc-shaped. By including the guide portion 313 in the slot 310, the guide portion 313, located between the first slot 311 and the second slot 312, and the arc-shaped sidewall of the guide portion 313, can play a guiding role, reducing gas backflow into the cavity 400 and facilitating gas discharge from the slot 310. This can more effectively prevent gas from entering the dam 500 and improve the problem of bubble defects in the display module.

[0042] In this embodiment, reference Figure 7The slot 310 is arranged at the edge region of the adhesive member 300. Compared with the scheme that the slot 310 is arranged at the middle region of the adhesive member 300, the scheme that the slot 310 is arranged at the edge region of the adhesive member 300 can shorten the distance from the outlet end of the slot 310 to the edge of the side of the adhesive member 300, thereby facilitating the air in the cavity 400 to be discharged from the outlet end of the slot 310.

[0043] In the embodiment, the slot 310 is arranged at the edge region of the adhesive member 300. Figure 7 The two slots 310 are arranged at the edges of the two sides of the adhesive member 300 respectively and are arranged oppositely. By arranging the two slots 310 at the edges of the two sides of the adhesive member 300 respectively and oppositely, the air in the cavity 400 can be discharged from the two slots 310 simultaneously when the adhesive member 300 is pressed, which can improve the efficiency of discharging the air in the cavity 400 and reduce the residual air in the cavity 400.

[0044] In the embodiment, the area of the opening 410 of the slot 310 near the cavity 400 is greater than the area of the opening 410 of the slot 310 away from the cavity 400. By arranging the area of the opening 410 of the slot 310 near the cavity 400 to be greater than the area of the opening 410 of the slot 310 away from the cavity 400, that is, the size of the opening 410 of the inlet end of the slot 310 is different from the size of the opening 410 of the outlet end of the slot 310, the air is more likely to enter the slot 310 and be discharged from the slot 310, thereby improving the problem of air bubble of the display module.

[0045] In the embodiment, the shape of the slot 310 includes a strip shape, an L shape or a wave shape.

[0046] In the embodiment, the depth of the slot 310 is less than the thickness of the adhesive member 300. By arranging the depth of the slot 310 to be less than the thickness of the adhesive member 300, on the one hand, the air in the cavity 400 can be discharged from the slot, and on the other hand, the air is prevented from entering the cavity from the opening at the bottom side of the slot 310, thereby improving the problem of air bubble of the display module.

[0047] The second embodiment of the application provides a display device, which refers to Figure 5 , Figure 6The display device includes the display module, and further includes a middle frame 600, a cover plate 700, and a frame adhesive 800. The display panel 100 is arranged on the middle frame 600, the cover plate 700 is arranged on the display panel 100, a filling area 900 is formed between the middle frame 600, the cover plate 700, and the first bending part 120 of the display panel 100, a part of the frame adhesive 800 is filled in the filling area 900, and a part of the frame adhesive 800 is connected with the dam 500.

[0048] In the embodiment, the display module further includes a driving chip, and the driving chip is arranged between the binding part 130 and the adhesive 300.

[0049] In the embodiment, the adhesive is an adhesive tape.

[0050] In the embodiment, the display module includes a display panel 100, a protective layer 200, an adhesive 300, and a dam 500. The display panel 100 includes a display part 110, a first bending part 120, and a binding part 130. The first bending part 120 is located between the display part 110 and the binding part 130. The protective layer 200 is arranged on the outer side of the first bending part 120. A part of the protective layer 200 extends towards the binding part 130 and is connected with the binding part 130. The adhesive 300 is arranged on a surface of the binding part 130 away from the display part 110. A part of the adhesive 300 extends towards the protective layer 200 and is connected with the protective layer 200. The adhesive 300, the binding part 130, and the protective layer 200 form a cavity 400. A slot 310 is arranged on the surface of the adhesive 300 close to the display part 110. The slot 310 is in communication with the cavity 400, and the slot 310 extends to the edge of the adhesive 300. The cavity 400 has openings 410 on both sides. The dam 500 is arranged on both sides of the cavity 400, and a part of the dam 500 fills the openings 410.

[0051] The display device includes the display module, the display device further includes a middle frame 600, a cover plate 700 and a frame glue 800, the display panel 100 is arranged on the middle frame 600, the cover plate 700 is arranged on the display panel 100, a filling area 900 is formed between the middle frame 600, the cover plate 700 and the first bending part 120 of the display panel 100, a part of the frame glue 800 is filled in the filling area 900, and a part of the frame glue 800 is connected with the dam 500, the display module includes the dam 500 and the adhesive 300, the adhesive 300 is arranged on a surface of the binding part 130 away from the display part 110, a part of the adhesive 300 extends towards the direction of the protective layer 200 and is connected with the protective layer 200, the adhesive 300, the binding part 130 and the protective layer 200 form a cavity 400, a surface of one side of the adhesive 300 close to the display part 110 is provided with a slot 310, the slot 310 is communicated with the cavity 400, and the slot 310 extends to the edge of the adhesive 300, both sides of the cavity 400 are provided with openings 410, and the dam 500 is arranged on both sides of the cavity 400, and a part of the dam 500 fills the openings 410; when the display device is subjected to low-pressure injection molding, since a part of the dam 500 fills the openings 410, liquid glue used for forming the frame glue 800 can be prevented from entering the cavity 400 through the openings 410 and overflowing into the display module of the display device, so that the performance of the display device is abnormal, and further, the slot 310 is arranged on the surface of one side of the adhesive 300 close to the display part 110, the slot 310 is communicated with the cavity 400, and the slot 310 extends to the edge of the adhesive 300, when the display device is subjected to low-pressure injection molding, when the adhesive 300 is subjected to pressure, air flow in the cavity 400 can flow out along the slot 310, air remaining in the slot 310 can be reduced to enter the dam 500, and then air in the slot 310 can be prevented from entering the frame glue 800, so that the problem of air bubbles of the display device is improved.

[0052] The specific embodiments of the present application are described in detail above. The above-described embodiments of the present application are only preferred embodiments of the present application, and those skilled in the art can make many modifications and improvements without departing from the concept of the present application. These modifications and improvements fall within the scope of the claims of the present application.

Claims

1. A display module, characterized by The display module comprises: a display panel, which comprises a display part, a first bending part and a binding part, the first bending part being located between the display part and the binding part; a protective layer, which is arranged on the outer side of the first bending part, and a part of the protective layer extends towards the binding part and is connected with the binding part; an adhesive part, which is arranged on the surface of the binding part away from the display part, a part of the adhesive part extends towards the protective layer and is connected with the protective layer, a cavity is formed between the adhesive part, the binding part and the protective layer, the surface of the adhesive part close to the display part is provided with a slot, the slot is communicated with the cavity, the slot extends to the edge of the adhesive part, and the cavity has openings on both sides; a dam, which is located on both sides of the cavity, and a part of the dam fills the openings.

2. The display module of claim 1, wherein, The protective layer comprises a second bending part and a first horizontal part, and the second bending part covers the first bending part. The adhesive part comprises a second horizontal part, an inclined part and a third horizontal part, the inclined part is located between the second horizontal part and the third horizontal part, the second horizontal part is fixed with the binding part, and the third horizontal part is fixed with the first horizontal part; wherein a part of the slot is located on the inclined part, another part of the slot is located on the second horizontal part, and the end of the slot is located on the edge of the second horizontal part away from the first bending part.

3. The display module of claim 2, wherein, The slot extends towards the second horizontal part, and the end of the slot is located on the edge of the second horizontal part away from the first bending part.

4. The display module of claim 2, wherein, The slot comprises a first slot part and a second slot part, the first slot part is communicated with the cavity, the second slot part is communicated with the first slot part, and the edge of the second slot part is located on the edge of the second horizontal part; wherein the first slot part extends towards the first direction of the display module, the second slot part extends towards the second direction of the display module, and the second direction intersects with the first direction.

5. The display module of claim 4, wherein, The slot further comprises a guide part, which is located between the first slot part and the second slot part, and the sidewall of the guide part is in the shape of a circular arc.

6. The display module of claim 1, wherein, The slot is formed in the edge area of the adhesive part.

7. The display module of claim 6, wherein, The area of the opening on the side of the slot close to the cavity is greater than the area of the opening on the side of the slot away from the cavity.

8. The display module of claim 1, wherein, The slot is provided in two, the two slots are respectively formed in the edges of the two sides of the adhesive part, and the two slots are oppositely arranged.

9. The display module of claim 1, wherein, The depth of the slot is less than the thickness of the adhesive part.

10. A display device, characterized by comprising: The display device further comprises a middle frame, a cover plate and a frame adhesive, the display panel is arranged on the middle frame, the cover plate is arranged on the display panel, a filling area is formed between the middle frame, the cover plate and the first bending part of the display panel, a part of the frame adhesive fills in the filling area, and a part of the frame adhesive is connected with the dam.

Images