Display Module

Abstract

This application discloses a display module, including a display panel. The display panel includes a display portion, a bending portion, and a bonding portion. The bending portion is located between the display portion and the bonding portion. The bending portion has multiple rows of first slots, which are spaced apart in a direction parallel to the bending center line. Each row of first slots includes multiple first sub-slots, which are spaced apart in a direction perpendicular to the bending center line, and the length direction of the first sub-slots is parallel to the length direction of the bending center line. This application can ensure the display stability of the display module and reduce the width of the bottom bezel of the display module.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a display module. Background Technology

[0002] To reduce the width of the bottom bezel of the flexible display module, the bonding portion of the flexible display module is bent to the back side of the display module, thus forming a bend between the display portion and the bonding portion of the display panel. When the radius of the bend in the display panel of the flexible display module is too small, the circuitry located at the bend is prone to breakage, leading to poor display quality and reduced display stability. Therefore, conventional flexible display modules cannot further reduce the width of the bottom bezel. Utility Model Content

[0003] The embodiments of this application provide a display module that can reduce the width of the bottom bezel of the display module without reducing the stability of the display.

[0004] An embodiment of this application provides a display module, including a display panel. The display panel includes a display part, a bending part, and a binding part. The bending part is located between the display part and the binding part. The bending part has multiple rows of first slots. The multiple rows of first slots are spaced apart in a direction parallel to the bending center line. Each row of first slots includes multiple first sub-slots. The multiple first sub-slots are spaced apart in a direction perpendicular to the bending center line, and the length direction of the first sub-slots is parallel to the length direction of the bending center line.

[0005] Furthermore, in the length direction of the bending center line, two adjacent first sub-slots are staggered.

[0006] Furthermore, the bending portion is also provided with a plurality of second slots, which are spaced apart in a direction parallel to the bending center line. Each second slot is located between two adjacent columns of first slots, and the length direction of the second slot is perpendicular to the length direction of the bending center line.

[0007] Furthermore, the second slot includes a plurality of second sub-slots, which are spaced apart in a direction perpendicular to the bending center line, and the length direction of the second sub-slots is perpendicular to the length direction of the bending center line.

[0008] Furthermore, the length of the first sub-groove on the side closer to the bending center line is less than the length of the first sub-groove on the side farther from the bending center line.

[0009] Furthermore, the display panel also includes multiple signal lines, which are spaced apart. Each signal line includes a first straight segment, a second straight segment, and a curved segment located between the first straight segment and the second straight segment. The first straight segment is located in the display part, the second straight segment is located in the bonding part, and the curved segment is located in the bending part. The curved segment of each signal line is located between multiple first sub-slots in the same column.

[0010] Furthermore, the curved segment includes multiple inclined segments and multiple arc segments, with two adjacent inclined segments connected by an arc segment. The inclined segment is located between two adjacent first sub-grooves, and the angle θ formed by the inclined segment and the bending center line is 0° < θ < 90°.

[0011] Furthermore, the first straight segment and the second straight segment of each of the signal lines are collinear.

[0012] Furthermore, the edge region of the bend is recessed toward the middle region of the bend to form a recess, which is located at at least one end of the multiple rows of the first slot.

[0013] Furthermore, the length of the first sub-slot is 0.3mm to 30mm, and the width of the first sub-slot is 0.1mm to 0.5mm.

[0014] The beneficial effects of this application are: This application provides a display module in which the bent portion is provided with multiple rows of first slots. These first slots are spaced apart in a direction parallel to the bend center line. Each row of first slots includes multiple first sub-slots, which are spaced apart in a direction perpendicular to the bend center line, and the length direction of the first sub-slots is parallel to the length direction of the bend center line. The first slots reduce the bending stress at the bent portion. Compared to conventional solutions where the bent portion does not have first slots, this reduces the risk of circuit breakage at the bend and facilitates a reduction in the bending radius, thereby ensuring the stability of the display module's display. On the one hand, it is beneficial to reduce the width of the bottom bezel of the display module; and on the other hand, since the length direction of the first sub-slot is parallel to the length direction of the bending center line, it reduces the risk that the end of the first sub-slot is located in a high-stress area, thereby reducing the risk of cracks at the end of the first sub-slot. On the other hand, it reduces the amount of material in the bending part along the length direction of the bending center line, reducing the force required to bend the bonding part to the back side of the display module, which helps to avoid signal line breakage caused by bending, and reduces the radius of the bending part of the display panel, thereby ensuring the stability of the display module and reducing the width of the bottom bezel of the display module. Attached Figure Description

[0015] Figure 1 This is a top view of the display module of this application; Figure 2 yes Figure 1 The cross-sectional view of the AA' position of the display module is shown; Figure 3 This is a schematic diagram of the structure of the bent portion of the first type of display module in this application; Figure 4 This is a schematic diagram of the structure of the bent portion of the second type of display module in this application; Figure 5 This is a schematic diagram of the bent portion of the third type of display module in this application; Figure 6 This is a schematic diagram of the bent portion of the fourth type of display module in this application; Figure 7 This is a structural schematic diagram of the bent portion of the fifth type of display module in this application; Figure 8 This is a structural schematic diagram of the bent portion of the sixth type of display module in this application.

[0016] 100 - Display panel; 110 - Display section; 120 - Bending section; 121 - First slot; 1211 - First sub-slot; 122 - Second slot; 1221 - Second sub-slot; 123 - Recessed section; 130 - Binding section; 140 - Signal line; 141 - First straight segment; 142 - Second straight segment; 143 - Curved segment; 1431 - Inclined segment; 1432 - Arc segment; 200 - First support layer; 300 - Second support layer. Detailed Implementation

[0017] 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.

[0018] 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.

[0019] The first embodiment of this application provides a display module, referencing... Figure 1 , Figure 2 , Figure 3The display module includes a display panel 100, which includes a display part 110, a bending part 120, and a binding part 130. The bending part 120 is located between the display part 110 and the binding part 130. The bending part 120 is provided with multiple rows of first slots 121. The multiple rows of first slots 121 are spaced apart in a direction parallel to the bending center line L. Each row of first slots 121 includes multiple first sub-slots 1211. The multiple first sub-slots 1211 are spaced apart in a direction perpendicular to the bending center line L, and the length direction of the first sub-slots 1211 is parallel to the length direction of the bending center line L.

[0020] To reduce the width of the bottom bezel of the flexible display module, the bonding portion 130 of the flexible display module is bent to the back side of the display module, thereby forming a bending portion 120 between the display portion 110 of the display panel 100 of the flexible display module and the bonding portion 130. When the radius of the bending portion 120 of the display panel 100 of the flexible display module is too small, the circuit located in the bending portion 120 is prone to breakage, resulting in poor display of the display module. That is, it is difficult for the conventional flexible display module to further reduce the width of the bottom bezel of the display module. Therefore, the technical solution provided by the application offers a display module in which the bent portion 120 is provided with multiple rows of first slots 121. These multiple rows of first slots 121 are spaced apart in a direction parallel to the bending center line L. Each row of first slots 121 includes multiple first sub-slots 1211, which are spaced apart in a direction perpendicular to the bending center line L. The length direction of the first sub-slots 1211 is parallel to the length direction of the bending center line L. The first slots 121 can reduce the bending stress of the bent portion 120. Compared to conventional solutions where the bent portion 120 does not have first slots 121, this reduces the risk of line breakage at the bent portion 120 and helps to reduce the bending radius of the bent portion 120. This ensures the stability of the display module and helps reduce the width of the bottom bezel of the display module. Furthermore, since the length direction of the first sub-slot 1211 is parallel to the length direction of the bending center line L, it avoids the end of the first sub-slot 1211 being located in a high-stress area, thus reducing the risk of cracks at the end of the sub-slot. It also reduces the amount of material in the bending portion 120 along the length direction of the bending center line L, decreasing the force required to bend the binding portion 130 to the back of the display module. This helps avoid the signal line 140 breaking due to the bending portion 120 and reduces the radius of the bending portion 120 of the display panel 100, thereby ensuring the stability of the display module and reducing the width of the bottom bezel of the display module.

[0021] In this embodiment, the first sub-slot 1211 is elongated.

[0022] In this embodiment, the length of the first sub-slot 1211 is 0.3mm to 30mm, and the width of the first sub-slot 1211 is 0.1mm to 0.5mm.

[0023] In this embodiment, reference Figure 2 The display module further includes a first support layer 200 and a second support layer 300. The first support layer 200 is fixed to a surface of the bonding portion 130 near the display portion 110, and the second support layer 300 is fixed to a surface of the display portion 110 near the bonding portion 130.

[0024] The second embodiment of this application provides a second display module. The second embodiment is similar to the first embodiment, but differs from the first embodiment in that, in reference to... Figure 4 In the length direction of the bending center line L, adjacent first sub-slots 1211 are staggered. By setting the staggered arrangement of adjacent first sub-slots 1211 in the length direction of the bending center line L, the distribution of the first sub-slots 1211 on the bending portion 120 can be more uniform, ensuring that the bending stress of the bending portion 120 can be more evenly distributed, thereby reducing the risk of display failure of the display panel 100 due to the breakage of the signal line 140 of the bending portion 120. Furthermore, in the length direction of the bending center line L, the staggered arrangement of adjacent first sub-slots 1211, compared with the display module scheme of the first embodiment, without increasing the number of first sub-slots 1211, provides a greater distance between adjacent first sub-slots 1211 in the same column in the second embodiment, which is more conducive to wiring in the bending portion 120, thereby reducing the manufacturing difficulty of the display module.

[0025] The third embodiment of this application provides a third display module. The third embodiment is similar to the first embodiment, but differs from the first embodiment in that it refers to... Figure 6 The bending portion 120 is further provided with a plurality of second slots 122, which are spaced apart in a direction parallel to the bending center line L. Each second slot 122 is located between two adjacent columns of first slots 121, and the length direction of the second slot 122 is perpendicular to the length direction of the bending center line L. That is, compared with the first embodiment, the third embodiment adds second slots 122 whose length direction is perpendicular to the length direction of the bending center line L. The second slots 122 can disperse the stress between two adjacent columns of first slots 121, thereby reducing the risk of cracks at the ends of the first sub-slots 1211 due to stress concentration, and thus improving the problem of abnormal display of the display panel 100 caused by the breakage of the signal line 140 of the bending portion 120.

[0026] In this embodiment, the length of the first sub-groove 1211 on the side closer to the bending center line L is less than the length of the first sub-groove 1211 on the side farther from the bending center line L. By setting the length of the first sub-slot 1211 on the side closer to the bending center line L to be less than the length of the first sub-slot 1211 on the side farther from the bending center line L, that is, the first sub-slot 1211 farther from the bending center line L has a larger length, the longer first sub-slot 1211 is more conducive to the release of tensile stress in the bending part, thereby further reducing the risk of display failure of the display panel 100 caused by the breakage of the signal line 140 of the bending part 120; and because the length of the first sub-slot 1211 on the side closer to the bending center line L is less than the length of the first sub-slot 1211 on the side farther from the bending center line L, the space formed between two adjacent columns of first sub-slots 1211 on the path from the side far from the bending center line L to the side closer to the bending center line L gradually increases, which is more conducive to the production of the second slot 122, thereby reducing the manufacturing difficulty of the display module.

[0027] In this embodiment, the second slot 122 is elongated and elliptical.

[0028] The fourth embodiment of this application provides a fourth display module. The fourth embodiment is similar to the third embodiment, but differs from the third embodiment in that, in reference to... Figure 7 The second slot 122 includes a plurality of second sub-slots 1221, which are spaced apart in a direction perpendicular to the bending center line L, and the length direction of the second sub-slots 1221 is perpendicular to the length direction of the bending center line L. By setting the second slot 122 to include a plurality of second sub-slots 1221, which are spaced apart in a direction perpendicular to the bending center line L, and whose length direction is perpendicular to the length direction of the bending center line L, the distribution of the plurality of second sub-slots 1221 between adjacent columns of first slots 121 can be more uniform, ensuring that the bending stress of the bent portion 120 can be more evenly distributed, thereby reducing the risk of display failure of the display panel 100 due to the breakage of the signal line 140 of the bent portion 120.

[0029] In this embodiment, the second sub-groove 1221 is elongated.

[0030] The fifth embodiment of this application provides a fifth display module. The fifth embodiment is similar to the first embodiment, but differs from the first embodiment in that, in reference to... Figure 5The length of the first sub-slot 1211 on the side closer to the bending center line L is less than the length of the first sub-slot 1211 on the side farther from the bending center line L. By setting the length of the first sub-slot 1211 on the side closer to the bending center line L to be less than the length of the first sub-slot 1211 on the side farther from the bending center line L, that is, the first sub-slot 1211 farther from the bending center line L is longer, the longer first sub-slot 1211 is more conducive to the release of tensile stress in the bending portion 120, thereby further reducing the risk of display failure of the display panel 100 caused by the breakage of the signal line 140 of the bending portion 120.

[0031] In this embodiment, the length of the first sub-groove 1211 decreases successively from the side away from the bending center line L to the side closer to the bending center line L.

[0032] The sixth embodiment of this application provides a sixth display module. The sixth embodiment is similar to the fifth embodiment, but differs from the fifth embodiment in that, in reference to... Figure 8 The display panel 100 further includes multiple signal lines 140, which are spaced apart. Each signal line 140 includes a first straight segment 141, a second straight segment 142, and a curved segment 143 located between the first straight segment 141 and the second straight segment 142. The first straight segment 141 is located in the display part 110, the second straight segment 142 is located in the binding part 130, and the curved segment 143 is located in the bending part 120. The curved segment 143 of each signal line 140 is located between multiple first sub-slots 1211 in the same column. The display panel 100 also includes multiple signal lines 140, which are spaced apart. Each signal line 140 includes a first straight segment 141, a second straight segment 142, and a curved segment 143 located between the first straight segment 141 and the second straight segment 142. The first straight segment 141 is located in the display part 110, the second straight segment 142 is located in the binding part 130, and the curved segment 143 is located in the bending part 120. The curved segment 143 of each signal line 140 is located between multiple first sub-slots 1211 in the same column. Since a portion of the bending part 120 between multiple first sub-slots 1211 in the same column can better reduce stress, the curved segment 143 between multiple first sub-slots 1211 in the same column is less likely to break due to stress concentration in the bending part 120, thereby improving the stability of the display image of the display module. In this embodiment, the curved segment 143 includes multiple inclined segments 1431 and multiple arc segments 1432. Two adjacent inclined segments 1431 are connected by an arc segment 1432. The inclined segments 1431 are located between two adjacent first sub-grooves 1211. The angle θ formed by the inclined segment 1431 and the bending center line L is 0° < θ < 90°. Preferably, the angle θ formed by the inclined segment 1431 and the bending center line L is 5°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, or 90°.

[0033] In this embodiment, the first straight segment 141 and the second straight segment 142 of each signal line 140 are collinear.

[0034] The seventh embodiment of this application provides a seventh display module. The seventh embodiment is similar to the third embodiment, but differs from the third embodiment in that, in reference to... Figure 6 , Figure 7 The edge region of the bent portion 120 is recessed towards the middle region of the bent portion 120 to form a recess 123, which is located at at least one end of the multiple rows of the first slots 121. By setting the edge region of the bent portion 120 to be recessed towards the middle region of the bent portion 120 to form a recess 123, which is located at at least one end of the multiple rows of the first slots 121, a segmented bending effect can be achieved, further reducing stress and thus reducing the risk of display defects in the display panel 100 caused by the breakage of the signal line 140 of the bent portion 120.

[0035] In this embodiment, the recess 123 is located at one end of the multiple rows of the first slot 121.

[0036] In this embodiment, the recessed portion 123 is located at both ends of the multiple rows of the first slot 121.

[0037] It should be understood that, unless otherwise specified or there is a logical conflict, the terminology and / or descriptions between different embodiments are consistent and can be referenced by each other, and the technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0038] The specific embodiments of this application have been described in detail above. The embodiments disclosed above are merely preferred embodiments of this application. Those skilled in the art can make many modifications and improvements without departing from the concept of this application. All such modifications and improvements fall within the scope of protection defined by the claims of this application.

Claims

1. A display module, characterized in that, The device includes a display panel, which comprises a display portion, a bending portion, and a binding portion. The bending portion is located between the display portion and the binding portion. The bending portion has multiple rows of first slots, which are spaced apart in a direction parallel to the bending center line. Each row of first slots includes multiple first sub-slots, which are spaced apart in a direction perpendicular to the bending center line, and the length direction of the first sub-slots is parallel to the length direction of the bending center line.

2. The display module according to claim 1, characterized in that, Along the length of the bending center line, two adjacent first sub-slots are staggered.

3. The display module according to claim 1, characterized in that, The bending portion is also provided with a plurality of second slots, which are spaced apart in a direction parallel to the bending center line. Each second slot is located between two adjacent columns of first slots, and the length direction of the second slot is perpendicular to the length direction of the bending center line.

4. The display module according to claim 3, characterized in that, The second slot includes a plurality of second sub-slots, which are spaced apart in a direction perpendicular to the bending center line, and the length direction of the second sub-slots is perpendicular to the length direction of the bending center line.

5. The display module according to claim 1 or 4, characterized in that, The length of the first sub-groove on the side closer to the bend center line is less than the length of the first sub-groove on the side farther from the bend center line.

6. The display module according to claim 5, characterized in that, The display panel also includes multiple signal lines, which are spaced apart. Each signal line includes a first straight segment, a second straight segment, and a curved segment located between the first straight segment and the second straight segment. The first straight segment is located in the display part, the second straight segment is located in the binding part, and the curved segment is located in the bending part. The curved segment of each signal line is located between multiple first sub-slots in the same column.

7. The display module according to claim 6, characterized in that, The curved segment includes multiple inclined segments and multiple arc segments. Two adjacent inclined segments are connected by an arc segment. The inclined segment is located between two adjacent first sub-grooves. The angle θ formed by the inclined segment and the bending center line is 0° < θ < 90°.

8. The display module according to claim 6, characterized in that, The first straight segment and the second straight segment of each of the signal lines are collinear.

9. The display module according to claim 1, characterized in that, The edge region of the bend is recessed toward the middle region of the bend to form a recess, which is located at at least one end of the multiple rows of the first slot.

10. The display module according to claim 1, characterized in that, The length of the first sub-slot is 0.3mm to 30mm, and the width of the first sub-slot is 0.1mm to 0.5mm.

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