Flexible display screen and electronic equipment

Abstract

The utility model provides a flexible display screen and electronic equipment. The flexible display screen comprises a display panel layer and a shielding layer. The display panel layer comprises a first plane area and a bending area connected with the first plane area. The shielding layer comprises a conductive cloth layer and a conductive adhesive layer, and the conductive cloth layer covers the first plane area; and the adhesive layer covers the bending area and is connected with the conductive cloth layer. According to the flexible display screen, by arranging the conductive adhesive layer, the adhesive layer is electrically connected with the conductive fabric layer, and the adhesive layer and the conductive fabric layer form a shielding layer, so that the seamless shielding effect of radiation signals of the flexible display screen is achieved. The adhesive layer covers the bending area in a spraying mode, has good adhesion and plays a role in protecting the display panel layer at the same time. Through the arrangement, the adhesive layer simultaneously realizes the shielding effect on radiation signals and the protection effect on the display panel layer, so that the overall size of the electronic equipment is favorably reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of electronic devices, and in particular to a flexible display screen and electronic devices. Background Art

[0002] Flexible display screens are widely used in mobile phones, tablets and other electronic devices. Flexible display screens can be bent due to their ultra-thin film structure, but they also have the risk of being easily damaged, so special protection design is required.

[0003] The presence of numerous data signal lines in the curved areas of the display panel layer significantly impacts RF and antenna performance. Manufacturers have implemented various countermeasures to address this issue, such as adding additional covering materials like conductive fabric and polyester film behind the display panel layer. However, due to the difficulty in properly adhering the conductive fabric to the curved areas of the display panel layer, signal radiation cannot be fully contained.

[0004] In the related art, the signal shielding solution for the bending area of ​​the display panel layer is usually to add shielding materials or increase the antenna clearance at the bottom of the entire device, sacrificing the size of the entire device. Summary of the Invention

[0005] The present disclosure provides a flexible display screen and electronic device that do not require additional shielding materials and can achieve a seamless shielding effect of the shielding layer.

[0006] In a first aspect, the present disclosure provides a flexible display screen, comprising:

[0007] A display panel layer, the display panel layer comprising a first planar area and a bending area connected to the first planar area;

[0008] The shielding layer includes a conductive cloth layer and a conductive adhesive layer, wherein the conductive cloth layer covers the first planar area; the adhesive layer covers the bending area and is connected to the conductive cloth layer.

[0009] By providing a conductive adhesive layer, an electrical connection is established between the adhesive layer and the conductive fabric layer, forming a shielding layer together, thereby achieving seamless shielding of radiation signals from the flexible display screen. The adhesive layer is applied to the bend area by spray coating, ensuring good adhesion while also protecting the display panel layer. This arrangement allows the adhesive layer to simultaneously shield radiation signals and protect the display panel layer, thereby reducing the overall size of the electronic device.

[0010] Optionally, the adhesive layer includes a main body and an extension portion, the main body covers the bending area, one end of the extension is connected to the main body, and the other end is connected to the conductive cloth layer, and the extension portion covers at least a portion of the first planar area.

[0011] Optionally, the extension portion overlaps with at least a portion of a projection of the conductive cloth layer in the thickness direction of the first planar area; in the thickness direction of the first planar area, the extension portion is arranged between the first planar area and the conductive cloth layer.

[0012] Optionally, the main body has a uniform thickness, and the extension portion includes a first extension portion and a second extension portion, wherein the first extension portion is connected to the main body, and the second extension portion is connected to the first extension portion;

[0013] The first extension portion has a uniform thickness, and the second extension portion has a thickness that decreases gradually from an end close to the first extension portion to an end away from the first extension portion.

[0014] Optionally, the thickness of the first extension portion is consistent with the thickness of the main body portion.

[0015] Optionally, the maximum thickness of the second extension portion is consistent with the thickness of the first extension portion.

[0016] Optionally, the display panel layer further includes a second planar area connected to an end of the bending area away from the first planar area, and the second planar area is parallel to the first planar area;

[0017] The flexible display screen further includes a polarizer, an optical adhesive, and a protective cover plate sequentially arranged along the thickness direction of the second planar area. The polarizer, the optical adhesive, and the protective cover plate are arranged on a side of the second planar area facing away from the first planar area.

[0018] Optionally, in the extension direction of the second planar area, the polarizer and the adhesive layer are connected; at least a portion of the optical adhesive extends to the bending area; and at least a portion of the protective cover extends to the outside of the bending area.

[0019] Optionally, a screen heat dissipation film is further included, and the screen heat dissipation film is arranged on the side of the second plane area facing the first plane area.

[0020] Optionally, the adhesive layer includes a colloid and conductive particles mixed in the colloid, and the conductive particles form a conductive shielding structure to make the adhesive layer conductive.

[0021] In a second aspect, the present disclosure further provides an electronic device comprising the flexible display screen as described in the first aspect.

[0022] By providing a conductive adhesive layer, an electrical connection is achieved between the adhesive layer and the conductive fabric layer, forming a shielding layer together, thereby achieving seamless shielding of the flexible display screen's radiated signals. The adhesive layer is applied to the bend area by spray coating, ensuring excellent adhesion while also protecting the display panel layer. This arrangement allows the adhesive layer to simultaneously shield radiated signals and protect the display panel layer, eliminating the need for additional shielding material or increasing the antenna clearance at the bottom of the electronic device, thus reducing the overall size of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0024] Figure 1 FIG. 1 is a schematic diagram of an embodiment of a flexible display screen according to the present disclosure.

[0025] Figure 2 FIG. 1 is a schematic diagram of another embodiment of the flexible display screen disclosed herein.

[0026] Description of reference numerals:

[0027] Flexible display screen 100; display panel layer 110; first planar area 111; bending area 112; second planar area 113; shielding layer 120; conductive fabric layer 121; adhesive layer 122; main body 1221; extension 1222; first extension 1223; second extension 1224; polarizer 130; optical adhesive 140; protective cover 150; screen heat dissipation film 160. DETAILED DESCRIPTION

[0028] Here, the technical solutions in the embodiments (or "implementations") of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0029] If there are terms related to directional indications or positional relationships in the embodiments of the present disclosure (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first" and "second" in the embodiments of the present disclosure are used only for descriptive convenience and should not be understood as indicating or implying relative importance.

[0030] The present disclosure provides a flexible display screen 100, see Figure 1 and Figure 2 As shown, it includes a display panel layer 110 and a shielding layer 120. The display panel layer 110 includes a first planar area 111 and a bending area 112 connected to the first planar area 111. The shielding layer 120 covers the display panel layer. The shielding layer 120 includes a conductive fabric layer 121 and a conductive adhesive layer 122. The conductive fabric layer 121 covers the first planar area 111; the adhesive layer 122 covers the bending area 112 and is connected to the conductive fabric layer 121. The adhesive layer 122 can be a mixture of UV-curable colloid and conductive particles, with the conductive particles evenly distributed in the colloid to make the adhesive layer 122 conductive.

[0031] By providing a conductive adhesive layer 122, an electrical connection is achieved between the adhesive layer 122 and the conductive fabric layer 121. Together, the adhesive layer 122 and the conductive fabric layer 121 form a shielding layer 120, thereby seamlessly shielding the radiated signals from the flexible display screen 100. The adhesive layer 122 is applied to the bending region 112 by spraying, providing excellent adhesion and simultaneously protecting the display panel layer 110. This arrangement allows the adhesive layer 122 to simultaneously shield the radiated signals and protect the display panel layer 110, thereby reducing the overall size of the electronic device.

[0032] In an optional embodiment, the adhesive layer 122 includes a main body 1221 and an extension 1222. The main body 1221 covers the bending area 112, one end of the extension 1222 is connected to the main body 1221, and the other end is connected to the conductive cloth layer 121. The extension 1222 covers at least a portion of the first planar area 111. Specifically, the main body 1221 and the extension 1222 are integrally formed. In actual operation, the adhesive layer 122 covers the display panel layer 110 by spraying. During the spraying process of the adhesive layer 122, the main body 1221 and the extension 1222 of the adhesive layer 122 are sprayed at the same time, so that the main body 1221 and the extension 1222 are integrally formed.

[0033] Through the above-mentioned arrangement, the conductive cloth layer 121 covers the first planar area 111 and is connected to the conductive cloth layer 121 through the extension portion 1222. The edge of the conductive cloth layer 121 does not need to bend along with the shape of the bending area 112 of the display panel layer 110. The conductive cloth layer 121 can be attached to the display panel layer 110, which is beneficial to the connection between the extension portion 1222 and the conductive cloth layer 121, thereby improving the connection reliability between the adhesive layer 122 and the conductive cloth layer 121, thereby achieving seamless shielding of the radiation signal of the flexible display screen 100, and at the same time helping to reduce the overall size of the electronic device.

[0034] In an optional embodiment, the extension portion 1222 overlaps with at least a portion of the projection of the conductive cloth layer 121 in the thickness direction of the first planar region 111. In the thickness direction of the first planar region 111, the extension portion 1222 is disposed between the first planar region 111 and the conductive cloth layer 121.

[0035] This arrangement increases the connection area between the extension portion 1222 and the conductive fabric layer 121, thereby improving the connection reliability between the adhesive layer 122 and the conductive fabric layer 121. In the thickness direction of the first planar region 111, the extension portion 1222 is disposed between the first planar region 111 and the conductive fabric layer 121. The extension portion 1222 of the adhesive layer 122 achieves adhesion between the conductive fabric layer 121 and the display panel layer 110, thereby improving the connection reliability between the conductive fabric layer 121 and the display panel layer 110.

[0036] In an optional embodiment, the main body 1221 has a uniform thickness. The extension portion 1222 includes a first extension portion 1223 and a second extension portion 1224. One end of the first extension portion 1223 is connected to the main body 1221, and the other end of the first extension portion 1223, the second extension portion 1224, is connected to the first extension portion 1223. The first extension portion 1223 and the second extension portion 1224 are integrally formed.

[0037] The first extension portion 1223 has a uniform thickness, and the second extension portion 1224 has a decreasing thickness from an end close to the first extension portion 1223 to an end away from the first extension portion 1223 .

[0038] During the manufacturing process, the adhesive layer 122 is applied to the display panel layer 110 by spraying, and the conductive fabric layer 121 is then applied to the extension 1222 of the adhesive layer 122. The thickness of the second extension 1224 decreases gradually from the end closest to the first extension 1223 to the end further away from the first extension 1223. This helps ensure that the conductive fabric layer 121 is smoothly attached to the adhesive layer 122 at the edge, thereby improving the connection reliability between the conductive fabric layer 121 and the adhesive layer 122, and achieving a seamless shielding effect of the shielding layer 120 against radiation signals.

[0039] In an optional embodiment, the thickness of the first extension portion 1223 is consistent with the thickness of the main body portion 1221. This arrangement facilitates the integral molding of the extension portion 1222 and the main body portion 1221. Furthermore, when the conductive fabric layer 121 is covered on the extension portion 1222 of the adhesive layer 122, the edge of the conductive fabric can be smoothly covered on the adhesive layer 122, thereby facilitating the connection reliability between the conductive fabric layer 121 and the adhesive layer 122 and achieving a seamless shielding effect of the shielding layer 120 on the radiation signal.

[0040] In an optional embodiment, the maximum thickness of the second extension portion 1224 is consistent with the thickness of the first extension portion 1223. Specifically, the end of the second extension portion 1224 closest to the first extension portion 1223 has the same thickness as the first extension portion 1223. This arrangement facilitates the integrated formation of the second extension portion 1224 and the first extension portion 1223. Furthermore, when the conductive fabric layer 121 is overlaid on the extension portion 1222 of the adhesive layer 122, the edges of the conductive fabric can be smoothly overlaid on the adhesive layer 122, thereby improving the connection reliability between the conductive fabric layer 121 and the adhesive layer 122 and achieving a seamless shielding effect of the shielding layer 120 against radiation signals.

[0041] In an optional embodiment, the display panel layer 110 further includes a second planar region 113 connected to an end of the bending region 112 away from the first planar region 111 , and the second planar region 113 is parallel to the first planar region 111 .

[0042] The flexible display screen 100 further includes a polarizer 130, an optical adhesive 140, and a protective cover 150 sequentially arranged along the thickness direction of the second planar area 113. The polarizer 130, optical adhesive 140, and protective cover 150 are arranged on the side of the second planar area 113 facing away from the first planar area 111.

[0043] The polarizer 130 is used to achieve imaging of the flexible display screen 100. The optical adhesive 140 is used to bond the glass protective cover 150 to the polarizer 130. The glass protective cover 150 is used to protect the flexible display screen 100 and reduce damage to the flexible display screen 100 during use.

[0044] In an optional embodiment, the polarizer 130 and the adhesive layer 122 are connected in the extension direction of the second planar area 113. At least a portion of the optical adhesive 140 extends to the bending area 112 to increase the bonding area between the optical adhesive 140 and the protective cover 150. At least a portion of the protective cover 150 extends to the outside of the bending area 112, so that the protective cover 150 can also protect the bending area 112, reducing damage to the flexible display screen 100 during use. In actual use, the edge of the glass protective cover 150 is connected to the housing of the electronic device. Through the above arrangement, the installation of the flexible display screen 100 on the electronic device is facilitated.

[0045] In an optional embodiment, the flexible display screen 100 further includes a heat dissipation film 160 disposed on the side of the second planar region 113 facing the first planar region 111. Specifically, the heat dissipation film 160 comprises a laminated structure composed of a pressure-sensitive adhesive (PSA), foam, PI adhesive, and copper foil. The heat dissipation film 160 provides support for the bending region 112, thereby facilitating the stable placement of the bending region 112.

[0046] In an optional embodiment, the adhesive layer 122 includes a colloid and conductive particles mixed in the colloid. The conductive particles form a conductive shielding structure, imparting conductivity to the adhesive layer 122. The colloid may be a UV-curable colloid. In some embodiments, the conductive particles may be dissolved in the colloid as metal ions, resulting in the adhesive layer 122 having a conductivity comparable to that of the conductive fabric layer 121. In other embodiments, the conductive particles may be particles insoluble in the colloid, evenly distributed within the colloid, resulting in the adhesive layer 122 having a conductivity comparable to that of the conductive fabric layer 121.

[0047] By providing a conductive adhesive layer 122, an electrical connection is achieved between the adhesive layer 122 and the conductive fabric layer 121. The adhesive layer 122 and the conductive fabric layer 121 form a shielding layer 120, thereby achieving seamless shielding of radiated signals from the flexible display screen 100. This arrangement enables the adhesive layer 122 to simultaneously shield radiated signals and protect the display panel layer 110, eliminating the need for additional shielding material or increasing the antenna clearance at the bottom of the electronic device, thereby reducing the overall size of the electronic device.

[0048] The present disclosure further provides an electronic device, comprising the flexible display screen 100 according to the first aspect.

[0049] By providing a conductive adhesive layer 122, an electrical connection is achieved between the adhesive layer 122 and the conductive fabric layer 121. The adhesive layer 122 and the conductive fabric layer 121 form a shielding layer 120, thereby achieving seamless shielding of the radiated signals of the flexible display screen 100. The adhesive layer 122 is applied to the bending region 112 by spraying, providing excellent adhesion and simultaneously protecting the display panel layer 110. This arrangement allows the adhesive layer 122 to simultaneously shield the radiated signals and protect the display panel layer 110, eliminating the need for additional shielding material or increasing the antenna clearance at the bottom of the electronic device, thereby reducing the overall size of the electronic device.

[0050] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this disclosure is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this disclosure shall be included in the scope of protection of this disclosure.

Claims

1. A flexible display screen, characterized in that: include: A display panel layer, the display panel layer comprising a first planar area and a bending area connected to the first planar area; The shielding layer includes a conductive cloth layer and a conductive adhesive layer, wherein the conductive cloth layer covers the first planar area; the adhesive layer covers the bending area and is connected to the conductive cloth layer.

2. The flexible display screen according to claim 1, characterized in that: The adhesive layer includes a main body and an extension portion, the main body covers the bending area, one end of the extension portion is connected to the main body, and the other end is connected to the conductive cloth layer, and the extension portion covers at least a portion of the first planar area.

3. The flexible display screen according to claim 2, characterized in that: The extension portion overlaps with at least a portion of a projection of the conductive cloth layer in the thickness direction of the first planar region; in the thickness direction of the first planar region, the extension portion is disposed between the first planar region and the conductive cloth layer.

4. The flexible display screen according to claim 2, characterized in that: The main body has a uniform thickness, and the extension portion includes a first extension portion and a second extension portion, wherein the first extension portion is connected to the main body, and the second extension portion is connected to the first extension portion; The first extension portion has a uniform thickness, and the second extension portion has a thickness that decreases gradually from an end close to the first extension portion to an end away from the first extension portion.

5. The flexible display screen according to claim 4, characterized in that: The thickness of the first extension portion is consistent with the thickness of the main body portion; and / or The maximum thickness of the second extension portion is consistent with the thickness of the first extension portion.

6. The flexible display screen according to claim 1, characterized in that: The display panel layer further includes a second planar area connected to an end of the bending area away from the first planar area, and the second planar area is parallel to the first planar area; The flexible display screen further includes a polarizer, an optical adhesive, and a protective cover plate sequentially arranged along the thickness direction of the second planar area. The polarizer, the optical adhesive, and the protective cover plate are arranged on a side of the second planar area facing away from the first planar area.

7. The flexible display screen according to claim 6, characterized in that: In the extension direction of the second planar area, the polarizer and the adhesive layer are connected; at least a portion of the optical adhesive extends to the bending area; and at least a portion of the protective cover extends to the outside of the bending area.

8. The flexible display screen according to claim 6, characterized in that: It also includes a screen heat dissipation film, which is arranged on a side of the second plane area facing the first plane area.

9. The flexible display screen according to claim 1, characterized in that: The adhesive layer includes colloid and conductive particles mixed in the colloid, and the conductive particles form a conductive shielding structure to make the adhesive layer conductive.

10. An electronic device, characterized in that: The flexible display screen comprises the flexible display screen as described in any one of claims 1 to 9.

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