Electronic device

Abstract

The utility model discloses electronic equipment. The electronic equipment comprises a flexible display screen and a supporting piece. The flexible display screen comprises a display area, a bending area and a non-display area, and the display area and the non-display area are oppositely arranged; two ends of the bending area are respectively a display area connecting end connected with the display area and a non-display area connecting end connected with the non-display area; the supporting piece is located between the display area and the non-display area and connected between the display area connecting end and the non-display area connecting end so as to support the bending area. Therefore, under the condition that the electronic equipment bears external force (such as falling), the bending area and the display area cannot be stripped under the supporting action of the supporting piece.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to electronic devices. Background Art

[0002] Electronic devices all include flexible displays. The advantage of flexible displays is that they can be flexibly bound, that is, after the COP (Chip On Plastic) / FOP (FPC on plastic) double-layer bonding, the IC (integrated circuit chip) and FPC component area are flexibly bent to the back, thereby saving space under the chin. However, technicians have found that existing flexible displays are prone to peeling between the bending area and the display area, for example, peeling from the polarizer (POL) in the display area. Utility Model Content

[0003] The purpose of the present application is to disclose an electronic device that can avoid peeling between a bending area and a display area.

[0004] The present application discloses an electronic device. The electronic device comprises a flexible display screen and a support member, wherein: the flexible display screen comprises a display area, a bending area and a non-display area, the display area and the non-display area are arranged opposite to each other; the two ends of the bending area are respectively a display area connection end connected to the display area and a non-display area connection end connected to the non-display area; the support member is located between the display area and the non-display area, and is connected between the display area connection end and the non-display area connection end to support the bending area.

[0005] In some embodiments, the length of the line between the display area connection end and the non-display area connection end is L1, and along the direction perpendicular to the thickness of the electronic device, the bending area includes a bending area end protruding from the display area, and the maximum distance between the bending area end and the line is r, L≥4r.

[0006] In some embodiments, the connection between the support member and the bending area is located between the end of the bending area and the display area connection end.

[0007] In some embodiments, 0.5 mm ≤ L1 ≤ 0.8 mm; 0.2 mm ≤ r ≤ 0.3 mm.

[0008] In some embodiments, the electronic device includes a middle frame, the middle frame includes the support member, the support member includes a through hole; the bending area passes through the through hole; along a direction perpendicular to the thickness of the electronic device, the through hole is located outside the outline of the display area.

[0009] In some embodiments, with the direction in which the bending zone protrudes from the display area as the outside, a first elastic member is connected between the inner side of the bending zone and the side wall of the through hole corresponding to the inner side, and / or a first elastic member is connected between the outer side of the bending zone and the side wall of the through hole corresponding to the outer side.

[0010] In some embodiments, the thickness of the bending zone is d, and the width of the through hole along a direction perpendicular to the thickness of the electronic device is D, where D≥2d.

[0011] In some embodiments, a protective layer is coated on at least the sidewall of the bending zone corresponding to the through hole.

[0012] In some embodiments, the support member is fixedly connected to at least one of the non-display area and the non-display area connecting end via a second elastic member.

[0013] In some embodiments, the bending zone includes an upper bending zone located between the support member and the display area; the electronic device includes a first buffer member, and the first buffer member abuts against the upper bending zone and the support member.

[0014] In some embodiments, the electronic device includes a second buffer member disposed between the support member and the non-display area.

[0015] For the electronic device, since the support member is located between the display area and the non-display area, and is connected between the display area connection end and the non-display area connection end to support the bending area, when the electronic device is subjected to external force (such as falling), the supporting effect of the support member prevents the bending area and the display area from peeling, for example, the polarizer (POL) between the bending area and the display area will not peel, the film layer of the panel will not peel, or the panel and the first support member will not peel, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial cross-sectional view of an electronic device in the related art;

[0017] Figure 2 is a front view of an electronic device according to an embodiment of the application;

[0018] Figure 3 is along Figure 2 A local schematic diagram after sectioning along line AA;

[0019] Figure 4 is a cross-sectional view of a second electronic device according to an embodiment of the present application;

[0020] Figure 5 is a cross-sectional view of a third electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0021] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0022] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantitative limit, but indicate that there is at least one. "Multiple" or "several" means two or more. Unless otherwise specified, words such as "front", "rear", "lower" and / or "upper" are only for the convenience of explanation and are not limited to one position or one spatial orientation. Words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect. The singular forms "a", "said" and "the" used in this specification and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0023] See also Figure 3 , Figure 4 and Figure 5 Combined with Figure 2, the present application discloses an electronic device. The electronic device is not limited to mobile phones and tablet computers. The electronic device includes a flexible display screen 1, a support member 2, a cover plate 40 and an outer frame 30. The cover plate 40 is not limited to a glass cover plate. The flexible display screen 1 includes a display area 11, a bending area 12 and a non-display area 13. The display area 11 includes an optical adhesive (OCV) 1191, a polarizer (POL) 1192 and a panel 1193. The optical adhesive 1191 is used to bond the polarizer 1192 to the cover plate 40. The panel 1193 is used for display. The electronic device also includes a first support member 1194 (also referred to as BP, support film in the industry) located between the support member 2 and the panel 1193, a second support member 1195 (also referred to as BP, support film in the industry) located between the support member 2 and the non-display area 13, SCF (a combination of grid glue, foam and copper foil) 1196 and a pad (also referred to as a stiffener) 1197, and there is no limit on how these components are assembled. The display area 11 and the non-display area 13 are arranged opposite to each other. The non-display area 13 is a PAD area in the embodiment of the present application, but is not limited thereto. The non-display area 13 includes a chip (IC) 131 and a flexible circuit board (FPC) 132. The two ends of the bending area 12 are a display area connection end 121 connected to the display area 11 and a non-display area connection end 122 connected to the non-display area 13.

[0024] See also Figure 3 , Figure 4 and Figure 5 The support member 2 is located between the display area 11 and the non-display area 13, and is connected between the display area connection end 121 and the non-display area connection end 122 to support the bending area 12. The support member 2 can be connected to any component of the electronic device so that the support member 2 plays a supporting role. In addition, the connection between the support member 2 and the bending area 12 is not limited to the method described below, as long as it can be connected.

[0025] As described above, since the support member 2 is located between the display area 11 and the non-display area 13, and is connected between the display area connection end 121 and the non-display area connection end 122 to support the bending area 12, when the electronic device is subjected to external force (such as falling), the support function of the support member 2 prevents the bending area 12 and the display area 11 from peeling, for example, the polarizer (POL) 1192 of the bending area 12 and the display area 11 will not peel, the film layer of the panel 1193 will not peel, or the panel and the first support member 1194 will peel, etc. In addition, when the electronic device is subjected to external force, the support function of the support member 2 can provide a reaction force to prevent the bending area 12 from being injured by the external force.

[0026] See also Figure 3 The length of the line between the display area connection end and the non-display area connection end is L, along the direction perpendicular to the thickness of the electronic device, such as Figure 3 As shown by arrow B. The direction shown by arrow B can also be considered as the direction in which the bending area 12 protrudes from the display area 11. The bending area 12 includes a bending area end 120 protruding from the display area 11, and the maximum distance between the bending area end 120 and the connecting line is r, L ≥ 4r. Of course, Figure 4 and Figure 5 In the electronic device shown, the bending area 12 also satisfies L≥4r. In some embodiments, 0.5mm≤L≤0.8mm; 0.2mm≤r≤0.3mm.

[0027] As set above, L≥4r makes the bending zone 12 wider, and it can be considered that the bending radius is increased, which can disperse the stress so that the stress in the bending zone 12 is smaller (especially the stress at the end 120 of the bending zone will not be too concentrated). On the one hand, it avoids the metal wire in the bending zone 12 from breaking (cracking); on the other hand, the supporting effect of the support member 2 combined with the smaller stress can prevent the bending zone 12 and the display area 11 from peeling (peeling), for example, the polarizer (POL) 1192 of the bending zone 12 and the display area 11 will not peel (peeling), and / or the film layer of the panel (panel) 1193 will not peel, etc.

[0028] Continue reading Figure 3 and Figure 5 , the connection between the support member 2 and the bending area 12 is located at the bending area end 120. However, the skilled person can understand that in other embodiments, the connection may be located between the upper part of the bending area end 120 and the display area connection end 121. In short, the connection is located between the bending area end 120 and the display area connection end 121.

[0029] As configured above, since the connection between the support member 2 and the bending zone 12 is located between the end 120 of the bending zone and the connection 111 between the bending zone 12 and the display zone 11, and is closer to the connection 111, when the electronic device is subjected to external force (such as falling, etc.), the support member 2 can better support the bending zone 12 so that the bending zone 12 and the display zone 11 will not peel off. In addition, when the connection between the support member 2 and the bending zone 12 is located at the end 120 of the bending zone, the bending zone 12 is symmetrical relative to the support member 2, which can avoid inconsistent stress between the upper and lower parts of the bending zone 12 (which can be understood as the upper bending zone 124 described later).

[0030] See also Figure 3 , Figure 4 and Figure 5 The electronic device includes a middle frame 20, and the middle frame 20 includes the support member 2. The support member 2 includes a through hole 21, Figure 2 In order to illustrate the through hole 21, the through hole 21 is indicated by a dotted line. The bending area 12 passes through the through hole 21. The structure of the through hole 21 is not limited, and it can be a hole with four sides closed, such as a round hole, or a non-closed hole, such as a notch. In short, the through hole 21 can be used as long as the bending area 12 can pass through so that the non-display area 13 is bent to the back of the display area 11. Figure 3 , Figure 4 and Figure 5 , along the direction perpendicular to the thickness of the electronic device, the through hole 21 is located outside the outline of the display area 11. Specifically, after the through hole 21 is located outside the outline, along the direction perpendicular to the thickness of the electronic device, the through hole 21 is closer to the right side of the drawing than the outline of the display area 11.

[0031] Figure 1 In the related art shown, the bending area 12 does not pass through the support member 2 of the middle frame 20, but is bent slightly to connect (bind) with the padding block 1197 through the second support member 1195. Figure 1 The dashed line in the middle shows the state before bending, and the solid line shows the state after bending. Thus, the aforementioned small bend (i.e., the bending radius) is small, which easily leads to peeling between the bending area 12 and the display area 11. In addition, the aforementioned small bending radius also leads to greater stress on the film layer of the bending area 12, and the metal wire inside the bending area 12 is easy to break. Figure 1 Compared with the related art shown in FIG. 1 , the middle frame is used as the support member 2, the bending area 12 passes through the through hole 21, and the through hole 21 is located outside the outline of the display area 11, so that the bending radius can be increased (compared to FIG. 1 ). Figure 3 and Figure 1 , L1>L2) and reduce the film stress of the bending area 12, so that the bending area 12 is not easy to peel off (peeling) from the display area 11 when subjected to external force (such as falling), and it can also avoid the metal wires inside the bending area 12 from breaking easily (for example, avoiding the breakage of gold wires and avoiding the vertical line phenomenon).

[0032] See also Figure 3 , Figure 4 and Figure 5, with the direction in which the bending area protrudes from the display area as the outside, a first elastic member 31 is connected between the inner side of the bending area 12 and the side wall of the through hole 21 corresponding to the inner side, and between the outer side of the bending area 12 and the side wall of the through hole 21 corresponding to the outer side. The first elastic member 31 can be formed by edging glue. Of course, in other embodiments, the first elastic member 31 can also be connected between the inner side of the bending area 12 and the inner side wall of the through hole 21 corresponding to the inner side, or the first elastic member 31 can be connected between the outer side of the bending area 12 and the outer side wall of the through hole 21 corresponding to the outer side.

[0033] As described above, since at least one of the inner side and the outer side of the bending area 12 is connected to the corresponding side wall of the through hole 21 by the first elastic member 31, the first elastic member 31 has a buffering effect, for example, see Figure 3 , Figure 4 and Figure 5 When the electronic device falls, it may buffer the force from the direction of arrow F1 to avoid damage to the metal wires in the bending area 12, thereby avoiding the risk of vertical lines. In some cases, the first elastic member 31 can also prevent the bending area 12 from loosening, thereby preventing the bending area 12 from peeling off from the display area 11.

[0034] See also Figure 3 , Figure 4 and Figure 5 , the thickness of the bending area 12 is d. Along the thickness direction perpendicular to the electronic device, as shown by arrow B, the width of the through hole 21 is D, D ≥ 2d. In the case where the bending area 12 is subsequently coated with a protective layer 123, the thickness d of the bending area 12 also includes the thickness of the protective layer 123.

[0035] As described above, since D≥2d, when the bending area 12 passes through the through hole 21, there is enough clearance between the bending area 12 and the side wall of the through hole 21, which reduces the occurrence of scratches and precision problems, thereby preventing damage to the metal wires in the bending area and avoiding the risk of vertical lines. In addition, by providing the protective layer 123, the inside of the bending area 12 is protected by the protective layer 123 and is not exposed, and the flexible display screen will not have reliability problems. For example, when placed in a complete machine factory, there will be no reliability problems due to the protection of the protective layer 123.

[0036] See also Figure 3 , Figure 4 and Figure 5 The bending area 12 is coated with a protective layer 123 at least at the side wall corresponding to the through hole 21 . Figure 3 , Figure 4 and Figure 5It is only schematically shown that the outer side of the bending zone 12 is coated with the protective layer 123. Technicians can understand that in other embodiments, the inner side of the bending zone 12 can also be coated with the protective layer 123, or both the inner and outer sides are coated with the protective layer 123, that is, the bending zone 12 includes a double-layer protective layer 123.

[0037] As configured above, since the bending zone 12 is coated with a protective layer 123 at least at the side wall corresponding to the through hole 21, in the process of the bending zone 12 passing through the through hole 21, the protective effect of the protective layer 123 can prevent the bending zone 12 from being scratched against the side wall of the through hole 21, thereby avoiding damage to the metal wire in the bending zone, and further avoiding the aforementioned vertical line problem.

[0038] The material of the protective layer 123 is not limited, as long as it can play a protective role. In the embodiment of the present application, the protective layer 123 is UV glue.

[0039] See also Figure 3 , Figure 4 and Figure 5 , the support member 2 is fixedly connected to the non-display area connection end 122 through the second elastic member 32. The second elastic member 32 can be formed by edge glue. Based on the role of the subsequent fixed connection, in other embodiments, the support member 2 can also be fixedly connected to the non-display area 13 through the second elastic member 32. At this time, the second elastic member 32 only needs to play the subsequent buffering role. Of course, the support member 2 can also be fixedly connected to the non-display area connection end 122 and fixedly connected to the non-display area 13.

[0040] As described above, the bending area 12 is elastic after passing through the through hole 21 and bending. The support member 2 is fixedly connected to at least one of the non-display area connection end 122 and the non-display area 13 through the second elastic member 32. The second elastic member 32 has a buffering effect, such as Figure 5 The force from the F2 direction is buffered, so that when the electronic device is subjected to external force (such as falling), the metal wires in the bending area 12 are prevented from being damaged. In addition, the fixed connection can prevent the bending area 12 from rebounding, and the bending area 12 will not rebound and cause looseness, etc., to avoid peeling of the bending area 12 and the display area 11.

[0041] See also Figure 4 The bending area 12 includes an upper bending area 124 located between the support member 2 and the display area 11. The electronic device includes a first buffer member 3, and the first buffer member 3 abuts against the upper bending area 124 and the support member 2. The first buffer member 3 can be a foam filled between the upper bending area 124 and the support member 2 to achieve the abutment. The first buffer member 3 can also be a viscose or the like.

[0042] As described above, since the first buffer member 3 is in contact with the upper bending area 124 and the support member 2, the buffering effect of the first buffer member 3 buffers the external force (such as falling) borne by the electronic device (for example, buffers the force from the F3 direction), thereby avoiding the risk of vertical lines. In addition, the buffering effect of the first buffer member can also prevent the bending area 12 and the display area 11 from peeling.

[0043] See also Figure 5 , the electronic device includes a second buffer 4. The second buffer 4 is arranged between the support member 2 and the non-display area 13. There is no limit to how it is arranged, for example, a receiving groove 22 is opened on the surface of the support member 2 opposite to the display area 11. The second buffer 4 is located in the receiving groove 22, and is connected to the non-display area 13 and arranged between the support member 2 and the non-display area 13. The second buffer 4 can be a component that can play a buffering role, such as foam, and its structure is not limited.

[0044] As configured above, since the second buffer member 4 is located in the accommodating groove 22 and is connected to the non-display area 13, based on the buffering effect of the second buffer member 4, for example, when the electronic device is subjected to external force, the force from the F2 direction is buffered, so that the electronic device will not have the risk of vertical lines.

[0045] In the above-mentioned various embodiments, at least one of the first elastic member 31, the second elastic member 32, the first buffer member 3 and the second buffer member 4 is provided. With the help of its buffering effect, the bending area 12 can be prevented from being damaged by external force. Alternatively, in some cases, the opening accuracy of the through hole 21 and its proximity to other components (such as a fingerprint recognition component) may also cause vertical line risks under external force. Based on the aforementioned buffering effect, such vertical line risks can also be avoided.

[0046] The above description is only a preferred implementation mode of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. An electronic device, characterized in that: The electronic device comprises a flexible display screen and a support member, wherein: The flexible display screen comprises a display area, a bending area and a non-display area, wherein the display area and the non-display area are arranged opposite to each other; two ends of the bending area are respectively a display area connection end connected to the display area and a non-display area connection end connected to the non-display area; The supporting member is located between the display area and the non-display area, and is connected between the display area connecting end and the non-display area connecting end to support the bending area.

2. The electronic device according to claim 1, characterized in that: The length of the connection line between the display area connection end and the non-display area connection end is L1, along the direction perpendicular to the thickness of the electronic device, the bending area includes a bending area end protruding from the display area, and the maximum distance between the bending area end and the connection line is r, L≥4r; And / or, the connection between the support member and the bending area is located between the end of the bending area and the connecting end of the display area.

3. The electronic device according to claim 2, characterized in that: 0.5mm≤L1≤0.8mm; 0.2mm≤r≤0.3mm.

4. The electronic device according to claim 1, characterized in that: The electronic device comprises a middle frame, the middle frame comprises the support member, the support member comprises a through hole; the bending area passes through the through hole; Along a direction perpendicular to the thickness of the electronic device, the through hole is located outside the outline of the display area.

5. The electronic device according to claim 4, characterized in that: Taking the direction in which the bending area protrudes from the display area as the outside, a first elastic member is connected between the inner side of the bending area and the side wall of the through hole corresponding to the inner side, and / or a first elastic member is connected between the outer side of the bending area and the side wall of the through hole corresponding to the outer side.

6. The electronic device according to claim 4, characterized in that: The thickness of the bending area is d, and the width of the through hole along a direction perpendicular to the thickness of the electronic device is D, where D≥2d.

7. The electronic device according to claim 4, characterized in that: The bending zone is coated with a protective layer at least at a side wall corresponding to the through hole.

8. The electronic device according to claim 1, characterized in that: The supporting member is fixedly connected to the non-display area and at least one of the non-display area connecting ends through a second elastic member.

9. The electronic device according to claim 1, characterized in that: The bending area includes an upper bending area located between the support member and the display area; the electronic device includes a first buffer member, and the first buffer member abuts against the upper bending area and the support member.

10. The electronic device according to claim 1, characterized in that: The electronic device includes a second buffer member, which is arranged between the supporting member and the non-display area.

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