Display module and display device

Abstract

The invention provides a display module and a display device.The display module is provided with a display area and a non-display area surrounding the display area and comprises a display panel located in the display area; the cover plate is located on one side of the display panel; the optical cement is located in the non-display area and at least partially located between the display panel and the cover plate; the ink layer is located in the non-display area and located between the optical cement and the cover plate; wherein the ink layer is provided with an air channel penetrating through the ink layer, at least one end of the air channel is located on the surface, making contact with the optical cement, of the ink layer, and at least one end of the air channel is communicated with the outside. The glue sealing effect of the display module can be improved, and then the waterproof performance of the display module is improved.

Description

Technical Field

[0001] The present invention relates to the field of display panels, and in particular to a display module and a display device. Background Art

[0002] During the preparation of the display module, it is necessary to seal it around to prevent external water and oxygen from entering the display module and corroding its internal structure. During the sealing process, due to the adhesion between the optical glue and the ink layer of the display module and the display panel, the optical glue is difficult to flow well and evenly coated, and gas is formed in the optical glue. At the same time, it is difficult for the gas to escape during the coating process of the optical glue, resulting in bubbles and voids in the optical glue. The above reasons lead to the failure of the optical glue to completely fill the four sides of the display module, resulting in poor sealing of the display module and reducing the waterproof performance of the display module.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0004] In view of this, the present invention provides a display module and a display device to at least solve the problem of poor sealing of the display module.

[0005] On the one hand, an embodiment of the present invention provides a display module having a display area and a non-display area surrounding the display area, including: a display panel located in the display area; a cover plate located on one side of the display panel; an optical adhesive located in the non-display area and at least partially between the display panel and the cover plate; an ink layer located in the non-display area and between the optical adhesive and the cover plate; wherein the ink layer has an air channel that penetrates the ink layer, at least one end of the air channel is located on the surface of the ink layer contacting the optical adhesive, and at least one end of the air channel is connected to the outside.

[0006] On the other hand, an embodiment of the present invention further provides a display device, comprising the above-mentioned display module.

[0007] The display module and the display device of the present invention provide an air channel inside the ink layer, and connect the optical glue in contact with the ink layer and the outside air through the air channel, so that the gas generated during the sealing process of the optical glue used to encapsulate the display module can be discharged to the outside through the air channel, thereby avoiding the formation of bubbles in the optical glue, thereby improving the sealing effect of the display module and enhancing the waterproof performance of the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The accompanying drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present invention, and together with the specification are used to explain the principles of the present invention. Obviously, the accompanying drawings described below are only some embodiments of the present invention, and for those of ordinary skill in the art, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0009] Figure 1 It is a schematic diagram of a cross-sectional structure of a top edge or a side edge of a display module in the related art;

[0010] Figure 2 It is a schematic diagram of the cross-sectional structure of the bottom edge of a display module in the related art;

[0011] Figure 3 is a schematic diagram of a cross-sectional structure of a side of a display module provided by an embodiment of the present invention;

[0012] Figure 4 is a schematic diagram of a cross-sectional structure of a top edge or a side edge of another display module provided by an embodiment of the present invention;

[0013] Figure 5 is a schematic diagram of a cross-sectional structure of the bottom edge of another display module provided by an embodiment of the present invention;

[0014] Figure 6 is a schematic cross-sectional view of an ink layer provided by an embodiment of the present invention along the plane where the display panel is located;

[0015] Figure 7 is a schematic cross-sectional view of an edge of a display module along the thickness direction of a display panel provided by an embodiment of the present invention;

[0016] Figure 8 is a schematic cross-sectional view of an edge of another display module provided by an embodiment of the present invention along the thickness direction of the display panel;

[0017] Fig. 9 is a schematic cross-sectional view of an edge of another display module provided by an embodiment of the present invention along the thickness direction of the display panel;

[0018] Fig.10 is a schematic cross-sectional view of another ink layer provided by an embodiment of the present invention along the plane where the display panel is located;

[0019] Fig.11 is a schematic cross-sectional view of another ink layer provided by an embodiment of the present invention along the plane where the display panel is located;

[0020] Fig.12 is a schematic cross-sectional view of another ink layer provided by an embodiment of the present invention along the plane where the display panel is located;

[0021] Fig.13 yes Fig.12 A partial cross-sectional schematic diagram of the ink layer in the middle ink;

[0022] Fig.14 is a partial cross-sectional schematic diagram of another ink layer provided by an embodiment of the present invention along the plane direction where the display panel is located;

[0023] Fig.15 is a schematic cross-sectional view of an edge of another display module provided by an embodiment of the present invention along the thickness direction of the display panel;

[0024] Fig.16 is a schematic cross-sectional view of an edge of another display module provided by an embodiment of the present invention along the thickness direction of the display panel;

[0025] Fig.17 It is a structural schematic diagram of a display device provided by an embodiment of the present invention.

[0026] Reference numerals:

[0027] 10. Display module;

[0028] 11. Display panel;

[0029] 12. Cover plate;

[0030] 13. Optical glue;

[0031] 14. Ink layer;

[0032] 15. Airway;

[0033] 151, First Channel;

[0034] 152, Second channel;

[0035] 153, first opening;

[0036] 154, second opening;

[0037] 16. Bubbles;

[0038] 20. Display device;

[0039] X, first direction;

[0040] Y, second direction

[0041] α, first angle. DETAILED DESCRIPTION

[0042] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0043] The words "first", "second" and the like used in the specific description do not indicate any order, quantity or importance, but are only used to distinguish different components. In addition, in the description of the present invention, the orientation or position relationship indicated by the terms "upper" and "lower" are based on the orientation or position relationship shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0044] It should be noted that, in the absence of conflict, the embodiments of the present invention and features in different embodiments may be combined with each other.

[0045] In the related art, during the preparation process of the display module, it is necessary to seal the display module with glue to prevent external water and oxygen from entering the display module and corroding its internal structure. Figure 1 and Figure 2 As shown, taking a display module in the related art as an example, the display module has a display area and a non-display area surrounding the display area, and includes a display panel 11, a cover plate 12, an ink layer 14 and an optical glue 13. Among them, the display panel 11 is located in the display area. The cover plate 12 is located on one side of the display panel 11. The ink layer 14 is located in the non-display area and is located between the display panel 11 and the cover plate 12. The optical glue 13 is located in the non-display area and is at least partially located between the display panel 11 and the ink layer 14. During the sealing process, due to the adhesion between the optical glue 13 and the ink layer 14 of the display module and the display panel 11, it is difficult for the optical glue 13 to flow well and thus difficult to be evenly coated, and gas is formed in the optical glue 13. At the same time, it is difficult for gas to escape during the coating process of the optical glue 13, resulting in the formation of bubbles 16 in the optical glue 13. The above reasons cause the optical glue 13 to fail to completely fill the surroundings of the display module, resulting in poor sealing of the display module and thus reducing the waterproof performance of the display module.

[0046] The inventor of this case has provided a solution to the problems existing in the prior art through careful and in-depth research. The present invention provides a display module and a display device, wherein the display module has a display area and a non-display area surrounding the display area, including: a display panel, located in the display area; a cover plate, located on one side of the display panel; an optical glue, located in the non-display area and at least partially located between the display panel and the cover plate; an ink layer, located in the non-display area and located between the optical glue and the cover plate; wherein the ink layer has an air channel that penetrates the ink layer, at least one end of the air channel is located on the surface of the ink layer contacting the optical glue, and at least one end of the air channel is connected to the outside world. The display module and the display device of the present invention, by arranging an air channel inside the ink layer, and connecting the optical glue in contact with the ink layer and the outside air through the air channel, can guide the gas generated by the optical glue used to encapsulate the display module around the display module during the sealing process to the outside world through the air channel, thereby avoiding the formation of bubbles in the optical glue, so as to improve the sealing effect of the display module and enhance the waterproof performance of the display module.

[0047] The above is the core idea of ​​the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0048] like Figure 3 As shown, on the one hand, an embodiment of the present invention provides a display module 10 , which has a display area and a non-display area surrounding the display area, and includes a display panel 11 , a cover plate 12 , an ink layer 14 and an optical adhesive 13 .

[0049] The display area of ​​the display module 10 is a plane, that is, the display device 20 including the display module 10 is a straight screen display, but the present application is not limited thereto. In other embodiments, the display module 10 may also be a curved structure, that is, the display device 20 including the display module 10 is a curved screen display.

[0050] Specifically, the display panel 11 is located in the display area for displaying images. The cover plate 12 is located on one side of the display panel 11 to protect the display panel 11. The optical adhesive 13 is located in the non-display area and at least partially between the display panel 11 and the cover plate 12 to bond the display panel 11 and the cover plate 12, and seal the four sides of the display module 10 to prevent external water and oxygen from entering the display module 10 and corroding its internal structure. The optical adhesive 13 can also be located outside other film layers on the side of the display module 10 to further seal the four sides of the display module 10. The ink layer 14 is located in the non-display area and between the optical adhesive 13 and the cover plate 12. The ink layer 14 is usually designed to be black or dark to prevent light emitted from the display panel 11 from penetrating from the edge of the display module 10 or other unnecessary areas.

[0051] Further, the ink layer 14 has an air channel 15 that penetrates the ink layer 14, at least one end of the air channel 15 is located on the surface of the ink layer 14 that contacts the optical adhesive 13, and at least one end of the air channel 15 is connected to the outside. The lower surface of the ink layer 14 is in contact with at least the surface of the optical adhesive 13, and in other embodiments, it may also contact other film layer structures. The interior of the ink layer 14 may include one air channel 15 or multiple air channels 15 that are connected to each other. When the ink layer 14 has only one air channel 15, the air channel 15 may include multiple ports, wherein at least one port is located on the surface of the ink layer 14 that contacts the optical adhesive 13, and at least one port is connected to the outside to connect the optical adhesive 13 to the outside air. When the ink layer 14 includes at least two air channels 15, at least one of the air channels 15 meets the above-mentioned requirement of connecting the optical adhesive 13 to the outside air. An air channel 15 is provided inside the ink layer 14 , and the optical glue 13 in contact with the ink layer 14 is connected to the outside air through the air channel 15 , so that the gas generated during the sealing process of the optical glue 13 used to encapsulate the display module 10 can be discharged to the outside through the air channel 15 , thereby avoiding the formation of bubbles 16 in the optical glue 13 , thereby improving the sealing effect of the display module 10 and enhancing the waterproof performance of the display module 10 .

[0052] like Figure 4 As shown, in other embodiments, the display module 10 may also be a curved structure, that is, the display device 20 including the display module 10 is a curved screen display. The display module 10 may also have a display area and a non-display area surrounding the display area, and include a display panel 11, a cover plate 12, an ink layer 14 and an optical glue 13, which will not be repeated here. Among them, the display panel 11 is a curved structure on the side or top edge of the display module 10 to form a curved screen display. Correspondingly, the cover plate 12 and the ink layer 14 are also curved structures on the side or top edge of the display module 10 to cooperate with the display panel 11. In the display module 10, the optical glue 13 can also be located on the outside of other film layers on the side of the display module 10 to further seal the four sides of the display module 10.

[0053] like Figure 5 As shown, no matter the display module 10 is a straight screen display or a curved screen display, the bottom edge of the display module 10 needs to bend the display panel 11 to complete the package. Unlike the side and top edges of the display module 10, the bottom edge of the display module 10 has a bending area, and the display panel 11 is bent in the bending area to complete the package. Optionally, the cover plate 12 and the ink layer 14 can also be bent in the bending area to cooperate with the package of the display panel 11. In addition, the optical glue 13 is entirely located between the display panel 11 and the cover plate 12 to seal the bottom edge of the display module 10.

[0054] like Figure 6 and Figure 7 As shown, in some embodiments, the airway 15 includes a plurality of interconnected first channels 151 and a plurality of second channels 152. Specifically, each first channel 151 is connected to at least one second channel 152, and the plurality of first channels 151 may be interconnected or not, and the present application is not limited thereto. Figure 6 Taking the case where the multiple first channels 151 are not interconnected as an example, the multiple first channels 151 can be evenly distributed around the display module 10 to evenly set gas outlet points on the optical glue 13, thereby evenly improving the sealing effect of each part of the display module 10 and improving the waterproof performance of the display module 10.

[0055] Specifically, one end of the first channel 151 forms a first opening 153 on the surface of the ink layer 14 close to the optical glue 13, and at least part of the first opening 153 is covered by the optical glue 13. One end of the second channel 152 forms a second opening 154 on the side of the ink layer 14 away from the display area, and the second opening 154 is connected to the outside air. The first channel 151 and the second channel 152 that are connected to each other together constitute a gas derivation unit, and the gas derivation unit includes an air inlet and an air outlet. Among them, the first opening 153 close to the optical glue 13 serves as an air inlet, and the second opening 154 directly connected to the outside air serves as an air outlet. The gas in the optical glue 13 passes through the air inlet and flows into the gas derivation unit, and is finally introduced into the outside air through the air outlet. Each gas derivation unit may include multiple first openings 153 and multiple second openings 154 to increase the derivation efficiency of the gas in the optical glue 13, so as to further improve the sealing effect of the display module 10 and enhance the waterproof performance of the display module 10. Furthermore, the four sides of the ink layer 14 may include a gas derivation unit formed by a plurality of interconnected first channels 151 and second channels 152 , so as to further improve the sealing effect of the display module 10 and enhance the waterproof performance of the display module 10 .

[0056] Continue to refer Figure 6 and Figure 7In some embodiments, the first channel 151 extends along the thickness direction of the ink layer 14, and the second channel 152 extends along the direction of the surface of the ink layer 14. Figure 7 The display module 10 in the embodiment is a straight screen display, and its ink layer 14 can be set in a plane. The first channel 151 close to the optical glue 13 extends in a direction perpendicular to the plane where the ink layer 14 is located, and the second channel 152 extends in a direction parallel to the surface where the ink layer 14 is located, so as to reduce the path length of the gas derivation path of the gas derivation unit formed by the first channel 151 and the second channel 152 connected to each other, so as to quickly derivate the gas in the optical glue 13 to the outside air, so as to improve the sealing effect of the display module 10, enhance the waterproof performance of the display module 10, and reduce the difficulty of preparing the first channel 151 and the second channel 152. In some other embodiments, the display module 10 can be a curved screen display, and the ink layer 14 can also be set in a curved surface accordingly. At this time, the first channel 151 extends in the thickness direction of the ink layer 14, and the extension directions of the multiple first channels 151 can be different, which can also be used to reduce the path length of the gas derivation path, so as to quickly derivate the gas in the optical glue 13 to the outside air. The second channel 152 extends along the direction of the curved surface where the ink layer 14 is located, and the extension directions of the plurality of second channels 152 may also be different. Exemplarily, the extension direction of the second channel 152 may be the shortest path connected to the side closest to the ink layer 14 in contact with the outside air, so as to reduce the path length of the gas extraction path, so as to quickly extract the gas in the optical adhesive 13 to the outside air. In other embodiments, the extension direction of the second channel 152 may not be the shortest path connected to the side closest to the ink layer 14 in contact with the outside air, and at the same time, in conjunction with a plurality of first channels 151 connected to the second channel 152 and distributed at different positions, the gas extraction range of the gas extraction unit formed by each interconnected first channel 151 and second channel 152 can be increased.

[0057] Continue to refer Figure 6 and Figure 7 In some embodiments, the extension direction of each first channel 151 is perpendicular to the extension direction of the second channel 152 connected to the first channel 151. For example, Figure 7 The display module 10 in the embodiment is a straight screen display, and the ink layer 14 can be arranged in a plane at the fixed edge or side of the display module 10. The first channel 151 close to the optical adhesive 13 extends in a direction perpendicular to the plane where the ink layer 14 is located, and the second channel 152 extends in a direction parallel to the plane where the ink layer 14 is located, so as to reduce the path length of the gas outlet path of the gas outlet unit formed by the first channel 151 and the second channel 152 connected to each other, so as to quickly outlet the gas in the optical adhesive 13 to the outside air, and at the same time reduce the difficulty of preparing the first channel 151 and the second channel 152.

[0058] like Figure 8 As shown, in some embodiments, the display module 10 may be a curved screen display, or the ink layer 14 may be provided on a curved surface at the bottom edge of the display module 10. At this time, the extension direction of the second channel 152 may be a curve, and the extension directions of the plurality of first channels 151 connected to the second channel 152 may be different, but the extension direction of each first channel 151 is perpendicular to the extension direction of the second channel 152 at the connection with the second channel 152, so as to reduce the path length of the gas derivation path of the gas derivation unit formed by the interconnected first channel 151 and the second channel 152, so as to quickly derivate the gas in the optical adhesive 13 to the outside air, and at the same time reduce the difficulty of preparing the first channel 151 and the second channel 152.

[0059] like Fig. 9 As shown, in some embodiments, the extension direction of each first channel 151 forms a first angle α with the extension direction of the second channel 152 connected to the first channel 151, and the first angle α ranges from 5° to 85°. Figure 7 The ink layer 14 in the figure is arranged in a plane, but the present application is not limited thereto. The second channel 152 extends in the direction of the surface where the ink layer 14 is located, and the first channel 151 extends in the thickness direction inclined to the ink layer 14, so the first angle α formed by the first channel 151 and the second channel 152 is no longer 90°. The range of the first angle α is 5° to 85°, that is, the non-vertical arrangement of the first channel 151 and the second channel 152 can make the first channel 151 connected to each second channel 152 communicate with the surface of the optical glue 13 in a larger range, thereby increasing the radiation range of the gas derivation unit formed by each interconnected first channel 151 and second channel 152 for the optical glue 13, so as to quickly derive the gas in the optical glue 13 to the outside air, so as to improve the sealing effect of the display module 10 and enhance the waterproof performance of the display module 10. Specifically, the value of the first angle α can be at least any one of 5°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80° or 85°. The smaller the value of the first angle α is, the larger the radiation range of the gas derivation unit formed by each interconnected first channel 151 and second channel 152 for the optical adhesive 13 is, and the better the derivation effect of the gas in the optical adhesive 13 is.

[0060] Continue to refer Figure 6 In some embodiments, the second channel 152 extends along the first direction X and / or the second direction Y, and the first direction X is perpendicular to the second direction Y. For example, Figure 6The ink layer 14 is a rectangle arranged along the first direction X and the second direction Y as a whole, and correspondingly, the display module 10 is also a rectangle arranged along the first direction X and the second direction Y. Specifically, the second channel 152 located at the side of the display module 10 extends along the first direction X, and the second channel 152 located at the top or bottom of the display module 10 extends along the second direction Y. The above arrangement can make the extension direction of the second channel 152 the shortest path connected to the side closest to the ink layer 14 in contact with the outside air, so as to reduce the path length of the gas derivation path of the gas derivation unit formed by the first channel 151 and the second channel 152 connected to each other, so as to quickly derivate the gas in the optical adhesive 13 to the outside air.

[0061] like Fig.10 As shown, in some embodiments, the second channel 152 extends in the radial direction of a circular area, and the extension direction of the first channel 151 intersects the circular area. Fig.10 The ink layer 14 is in a ring shape as a whole, and accordingly, the display module 10 is in a circular shape. The above arrangement allows the second channel 152 to extend in the shortest path connected to the side closest to the ink layer 14 in contact with the outside air, so as to reduce the path length of the gas outlet path of the gas outlet unit formed by the first channel 151 and the second channel 152 connected to each other, so as to quickly outlet the gas in the optical adhesive 13 to the outside air.

[0062] Furthermore, the ink layer 14 may also include a circular second channel 152 (not shown) arranged around the display area, and the circular second channel 152 is connected to each non-circular second channel 152 so that all the second channels 152 are connected. Furthermore, all the first channels 151 and the second channels 152 in the ink layer 14 are connected to each other and form a gas outlet unit to quickly outlet the gas in the optical glue 13 to the outside air, so as to improve the sealing effect of the display module 10 and enhance the waterproof performance of the display module 10.

[0063] like Fig.11 As shown, in some embodiments, at least part of the second channel 152 surrounds the display area, and at least two second channels 152 are interconnected. Specifically, the ink layer 14 may also include a rectangular second channel 152 arranged around the display area, and the rectangular second channel 152 is connected to each non-rectangular second channel 152 to connect all the second channels 152, and each first channel 151 is connected to a second channel 152, so that all the first channels 151 and the second channels 152 in the ink layer 14 are interconnected and form a gas outlet unit to quickly export the gas in the optical glue 13 to the outside air, so as to improve the sealing effect of the display module 10 and enhance the waterproof performance of the display module 10.

[0064] like Fig.12 and Fig.13 As shown, in some embodiments, the first openings 153 are arranged in an array on the surface of the ink layer 14 close to the optical adhesive 13. The first openings 153 are arranged in an array, which can facilitate the preparation of the first channel 151 and reduce the preparation cost of the display module 10.

[0065] like Fig.14 As shown, in some embodiments, along the first direction X, the positions of the first openings 153 in two adjacent rows are different, and the positions of the first openings 153 in every other row are the same. Also, along the second direction Y, the positions of the first openings 153 in two adjacent columns are different, and the positions of the first openings 153 in every other column are the same. When the same number of first openings 153 are prepared, the above arrangement can cover a larger range of the optical adhesive 13 while facilitating the preparation of the first channel 151, compared with the case where the first openings 153 are arranged in an array, so as to enhance the effect of extracting the gas in the optical adhesive 13, thereby enhancing the sealing effect of the display module 10 and enhancing the waterproof performance of the display module 10.

[0066] Continue to refer Figure 7 , Figure 8 and Fig. 9 In some embodiments, the distance between each second channel 152 and the cover plate 12 is equal. The distance between each second channel 152 and the cover plate 12 is equal, which can facilitate the preparation of the second channel 152 and reduce the preparation cost of the display module 10.

[0067] like Fig.15 and Fig.16 As shown, in some embodiments, the distance between part of the second channel 152 and the cover plate 12 is D1, and the distance between the remaining part of the second channel 152 and the cover plate 12 is D2, wherein D2>D1. Specifically, there are two layers of second channels 152 along the thickness direction of the ink layer 14, and the distances between the two layers of second channels 152 and the cover plate 12 are different. The provision of two layers of second channels 152 can increase the number of first channels 151 connected to the second channels 152, so as to improve the efficiency of the gas in the optical adhesive 13 being led out from the first channels 151. At the same time, the above-mentioned provision can also improve the radiation range of each gas derivation unit formed by the interconnected first channels 151 and the second channels 152 for the optical adhesive 13, and expand the contact point between the first opening 153 and the optical adhesive 13, so as to further improve the efficiency of the gas in the optical adhesive 13 being led out from the first channels 151.

[0068] Further, continue to refer to Fig.15, while two layers of second channels 152 are provided, each layer of second channels 152 extends along the direction of the surface where the ink layer 14 is located, and the first channels 151 extend along the thickness direction of the ink layer 14, and the extension direction of the first channels 151 is perpendicular to the extension direction of the second channels 152, and the second channels 152 between different layers are connected through the first channels 151. The above arrangement can reduce the path length of the gas outlet path of the gas outlet unit formed by each interconnected first channel 151 and second channel 152, so as to quickly guide the gas in the optical adhesive 13 to the outside air.

[0069] Further, continue to refer to Fig.16 , the extension direction of each first channel 151 forms a second angle with the extension direction of the second channel 152 of the lower layer, and the range of the second angle can be 5° to 85°. The extension direction of each first channel 151 forms a third angle with the extension direction of the second channel 152 of the upper layer, and the third angle can be a right angle. Specifically, the value of the second angle can be at least any one of 5°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80° or 85°. The smaller the value of the second angle, the larger the radiation range of the gas derivation unit formed by each interconnected first channel 151 and second channel 152 for the optical adhesive 13, and the better the derivation effect for the gas in the optical adhesive 13.

[0070] Continue to refer Figure 7 , Fig.15 and Fig.16 In some embodiments, the distance between the air channel 15 and the cover plate 12 is greater than or equal to 10 micrometers. Figure 7 In the figure, D3 represents the distance D3 between the second channel 152 and the cover plate 12, that is, the distance between the air channel 15 and the cover plate 12, wherein D3 ≥ 10 microns. Fig.15 and Fig.16 In the figure, the distance D1 between the second channel 152 located on the side close to the cover plate 12 and the cover plate 12, that is, the distance between the air channel 15 and the cover plate 12, is ≥ 10 microns. The thickness setting of D1 and D3 can ensure that the ink layer 14 still maintains a certain thickness when the air channel 15 is opened, so as to prevent the display module 10 from leaking light and affecting the display.

[0071] In some embodiments, the diameter of the air channel 15 is less than 0.2 microns. Specifically, the diameters of the first channel 151 and the second channel 152 are both less than 0.2 microns. The above configuration can enable the air channel 15 to produce a micro-capillary effect, thereby being able to absorb the gas in the optical adhesive 13, thereby removing the gas in the optical adhesive 13, thereby improving the sealing effect of the display module 10 and enhancing the waterproof performance of the display module 10.

[0072] In some embodiments, the optical adhesive 13 may contain a flow agent, which includes silicone, polyimide or a combination thereof, but the present application is not limited thereto. During the sealing process, due to the adhesion between the optical adhesive 13 and the ink layer 14 of the display module 10 and the display panel 11, the optical adhesive 13 is difficult to flow well and thus difficult to be evenly coated, and gas is formed in the optical adhesive 13. The flow agent can increase the fluidity of the optical adhesive 13, reduce the adhesion between the optical adhesive 13 and the ink layer 14 and the display panel 11, promote the flow of the optical adhesive 13 for uniform coating, and reduce the amount of gas formed in the optical adhesive 13, so as to improve the sealing effect of the display module 10 and enhance the waterproof performance of the display module 10.

[0073] In some embodiments, the air channel 15 can be etched using the photolithography principle. Specifically, the first channel 151 and the second channel 152 can be etched using the photolithography principle to reduce the difficulty of preparation and save the preparation cost of the display module 10. In other embodiments, the air channel 15 can also be etched by laser to increase the preparation efficiency of the air channel 15.

[0074] The display module 10 of the present invention, by arranging an air channel 15 inside the ink layer 14, and connecting the optical glue 13 in contact with the ink layer 14 and the outside air through the air channel 15, can guide the gas generated in the sealing process of the optical glue 13 used to encapsulate the display module 10 around to the outside through the air channel 15, thereby avoiding the formation of bubbles 16 in the optical glue 13, thereby improving the sealing effect of the display module 10 and enhancing the waterproof performance of the display module 10.

[0075] On the other hand, Fig.17 As shown, an embodiment of the present invention further provides a display device 20, including the above-mentioned display module 10 provided in the embodiment of the present invention. The display device 20 can be: a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, or any other product or component with a display function. The specific implementation and technical effects of the display device 20 can be referred to the specific embodiment of the above-mentioned display module 10, and the repeated parts will not be repeated.

[0076] In summary, the display module and the display device of the present invention, by setting an air channel inside the ink layer, and connecting the optical glue in contact with the ink layer and the outside air through the air channel, can guide the gas generated by the optical glue used to encapsulate the display module during the sealing process to the outside through the air channel, thereby avoiding the formation of bubbles in the optical glue, thereby improving the sealing effect of the display module and enhancing the waterproof performance of the display module.

[0077] The above contents are further detailed descriptions of the present invention in combination with specific optional implementation methods, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the scope of protection of the present invention.

Claims

1. A display module, comprising a display area and a non-display area surrounding the display area, characterized in that: include: A display panel, located in the display area; A cover plate, located on one side of the display panel; An optical adhesive is located in the non-display area and at least partially between the display panel and the cover plate; An ink layer, located in the non-display area and between the optical adhesive and the cover plate; The ink layer has an air channel penetrating the ink layer, at least one end of the air channel is located on the surface of the ink layer contacting the optical adhesive, and at least one end of the air channel is connected to the outside.

2. The display module according to claim 1, characterized in that: The airway includes a plurality of first channels and a plurality of second channels that are interconnected; One end of the first channel forms a first opening on the surface of the ink layer close to the optical adhesive, and at least a portion of the first opening is covered by the optical adhesive; One end of the second channel forms a second opening on a side of the ink layer away from the display area, and the second opening is connected to the outside air.

3. The display module according to claim 2, characterized in that: The first channel extends along a thickness direction of the ink layer, and the second channel extends along a surface of the ink layer.

4. The display module according to claim 3, characterized in that: An extension direction of each of the first channels is perpendicular to an extension direction of the second channels connected to the first channels.

5. The display module according to claim 2, characterized in that: An extension direction of each of the first channels forms a first angle with an extension direction of the second channel connected to the first channel, and the range of the first angle is 5° to 85°.

6. The display module according to claim 5, characterized in that: The first angle is 45°.

7. The display module according to claim 3, characterized in that: The second channel extends along a first direction and / or a second direction, and the first direction is perpendicular to the second direction.

8. The display module according to claim 3, characterized in that: The second channel extends along a radial direction of a circular area, and an extending direction of the first channel intersects the circular area.

9. The display module according to claim 3, characterized in that: At least a portion of the second channels surrounds the display area, and at least two of the second channels are connected to each other.

10. The display module according to claim 2, characterized in that: The first opening array is arranged on a surface of the ink layer close to the optical adhesive.

11. The display module according to claim 2, characterized in that: The distance between each of the second channels and the cover plate is equal.

12. The display module according to claim 2, characterized in that: The distance between a part of the second channel and the cover plate is D1, and the distance between the remaining part of the second channel and the cover plate is D2, wherein D2>D1.

13. The display module according to claim 1, characterized in that: The distance between the air channel and the cover plate is greater than or equal to 10 micrometers.

14. The display module according to claim 1, characterized in that: The diameter of the airways is less than 0.2 microns.

15. The display module according to claim 1, characterized in that: The optical adhesive contains a flow agent, which includes organic silicon, polyimide or a combination thereof.

16. A display device, characterized in that: Comprising the display module as described in any one of claims 1 to 15.

Images