Display screen and electronic equipment

Abstract

The invention discloses a display screen and electronic equipment, and belongs to the technical field of electronic products. The display screen comprises a display layer, a supporting layer and a substrate, the display layer, the supporting layer and the substrate are sequentially stacked in the thickness direction of the display screen, the display screen is provided with a bending area, and a blind hole is formed in the face, away from the display layer and the supporting layer, of the substrate. At least part of the blind hole is located in the bending area, and the width of the blind hole is larger than or equal to the width of the bending area.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic products, and specifically relates to a display screen and an electronic device. Background Art

[0002] With the continuous development of electronic devices, consumers are increasingly favoring foldable electronic devices, the display screen of which is usually a flexible screen, and to facilitate the folding of the display screen, a plurality of blind holes, a plurality of through holes, or a combination of a plurality of blind holes and through holes are provided on the substrate of the display screen.

[0003] In the process of using the electronic device, the user will repeatedly unfold or fold the electronic device, which causes the laminated structure of the display screen in the bending area to be repeatedly stretched and compressed. After the display screen is bent many times, the positions of the blind holes and through holes on the substrate will be deformed and arched to form a wavy structure. When the user looks at the display screen, more stripe-like marks can be seen, and the more times the display screen is bent, the more obvious the marks will be. In severe cases, it will affect the folding performance of the foldable electronic device.

[0004] In summary, the display screen involved in the related art is prone to the problem of many marks in the bending area. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a display screen and an electronic device that can solve the problem that the display screen involved in the related art is prone to many marks in the bending area.

[0006] The embodiment of the present application provides a display screen, comprising a display layer, a support layer and a substrate. The display layer, the support layer and the substrate are stacked in sequence in the thickness direction of the display screen, the display screen has a bending area, and a blind hole is provided on a side of the substrate away from the display layer and the support layer, at least a portion of the blind hole is located in the bending area, and a width of the blind hole is greater than or equal to a width of the bending area.

[0007] An embodiment of the present application provides an electronic device, comprising a housing and the display screen described above, wherein the display screen is connected to the housing.

[0008] In the embodiment of the present application, since the width of the blind hole opened on the substrate is greater than or equal to the width of the bending area, that is, the width of the blind hole is relatively large, the number of blind holes opened in the bending area of ​​the substrate can be relatively reduced. This satisfies the folding performance of the display screen. During the folding process of the display screen, the number of marks generated at the positions of the blind holes of the substrate is relatively reduced, or even no marks are generated. It can be seen that this can alleviate the problem of more marks being easily generated in the bending area to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A schematic cross-sectional view of the display screen disclosed in an embodiment of the present application; Figure 2 It is a schematic diagram of a partial cross-sectional structure of a display screen disclosed in an embodiment of the present application.

[0010] Description of reference numerals: 100-display layer; 200-support layer, 210-first support layer, 220-second support layer, 221-mounting hole, 230-first surface, 240-reinforcement member; 300-substrate, 310-blind hole; 400-bending area; 510-first magnetic member, 520-second magnetic member; 610 - first cover layer, 620 - first adhesive layer, 630 - second cover layer, 640 - second adhesive layer; 710 - third adhesive layer, 720 - fourth adhesive layer; 810 - protective layer, 820 - driving chip, 830 - fifth bonding layer, 840 - sixth bonding layer; 900-Circuit Board. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0012] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0013] The display screen disclosed in the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0014] Please refer to Figure 1-Figure 2The present application discloses a display screen, which includes a display layer 100 , a supporting layer 200 and a substrate 300 .

[0015] The display screen has a display function, and the display of the picture is realized through the display layer 100. The display layer 100 may include a light-emitting layer and a driving structure. The light-emitting layer may include a plurality of light-emitting pixels arranged in an array, and the driving structure may drive these light-emitting pixels to emit light, thereby realizing the display function. The display layer 100, the supporting layer 200 and the substrate 300 are sequentially stacked in the thickness direction of the display screen. The supporting layer 200 is used to support and protect the display layer 100. The substrate 300 can support the display layer 100 and the supporting layer 200 at the same time, and can make the entire display screen in a grounded state, thereby protecting the entire display screen, that is, the material made of the substrate 300 is usually metal.

[0016] The display screen disclosed in the present application may be a flexible screen, that is, a foldable display screen, and specifically may be an OLED (Organic Light Emitting Diode) display screen. In this case, the display screen has a bending region 400, and a blind hole 310 is provided on a side of the substrate 300 away from the display layer 100 and the support layer 200. At least part of the blind hole 310 is located in the bending region 400, so that the user can smoothly fold the display screen. Optionally, the blind hole 310 may be provided along the side of the substrate 300 away from the display layer 100 and the support layer 200. Figure 1 The cross-sectional shape in the direction indicated by the arrow line A may be a trapezoid, and the angle between the short side and the hypotenuse of the trapezoid may be an obtuse angle, or the short side and the hypotenuse may have a smooth transition.

[0017] The width of the blind hole 310 is greater than or equal to the width of the bending area 400. Specifically, Figure 1 The direction indicated by the middle arrow line A is the width direction of the blind hole 310 and the bending area 400. The size of the above-mentioned short side of the blind hole 310 can be greater than or equal to the width of the bending area 400, so that the blind hole 310 can release the stress generated when the display screen is bent. It can be seen that the width of the blind hole 310 is relatively large.

[0018] Optionally, to further ensure that the display screen can be smoothly folded, the depth of the blind hole 310 may be greater than or equal to half the thickness of the substrate 300. Optionally, the number of the blind hole 310 may be one, that is, a larger blind hole 310 is provided on the substrate 300, or the number of the blind holes 310 may be two. In short, the number of the blind holes 310 is small, so that the number of marks generated at the positions where the blind holes 310 of the substrate 300 are located is relatively small.

[0019] In the embodiment of the present application, since the width of the blind hole 310 opened on the substrate 300 is greater than or equal to the width of the bending area 400, that is, the width of the blind hole 310 is relatively large, the number of blind holes 310 opened in the bending area 400 of the substrate 300 can be relatively reduced. This meets the folding performance of the display screen. During the folding process of the display screen, the number of marks generated at the positions where the blind holes 310 of the substrate 300 are located is relatively reduced, or even no marks are generated. It can be seen that this can alleviate the problem of more marks being easily generated in the bending area 400 to a certain extent.

[0020] Optionally, the support layer 200 may include a first support layer 210 and a second support layer 220 stacked, and in the thickness direction of the display screen, the display layer 100, the first support layer 210, the second support layer 220 and the substrate 300 are stacked in sequence, that is, the support layer 200 may be divided into a first support layer 210 and a second support layer 220, and the first support layer 210 and the second support layer 220 may be separately provided so that the thickness of the first support layer 210 and the thickness of the second support layer 220 are both relatively small, which facilitates the folding of the display screen while ensuring that the support layer 200 can support the display layer 100. Of course, the first support layer 210 and the second support layer 220 may be provided as a whole, that is, the support layer 200 may be only a support layer 200 with a larger thickness.

[0021] Optionally, the first supporting layer 210 may be made of PET (Polyethylene Terephthalate) material.

[0022] In another embodiment, the first supporting layer 210 may be a metal layer, that is, the first supporting layer 210 is made of metal. Since the structural strength of metal is relatively strong, when the display layer 100 is supported by the first supporting layer 210, the supporting effect on the display layer 100 is better, and the structural strength and front impact resistance of the entire display screen can be improved, thereby extending the service life of the display screen.

[0023] Optionally, the thickness of the first supporting layer 210 may be between 60 μm and 80 μm. Specifically, the thickness of the first supporting layer 210 may be 65 μm, and the thickness of the second supporting layer 220 may be 25 μm. That is, in this case, the thickness of the first supporting layer 210 may be much greater than the thickness of the second supporting layer 220 .

[0024] In another embodiment, since the first supporting layer 210 is a metal layer, the overall structural strength of the display screen is relatively large. In this case, the thickness of the first supporting layer 210 can be reduced. Specifically, the thickness of the first supporting layer 210 can be between 20 microns and 25 microns, so that the thickness of the first supporting layer 210 is less than or equal to the thickness of the second supporting layer 220. This can significantly reduce the thickness of the display screen while ensuring the overall structural strength, thereby reducing the thickness of the electronic device described later.

[0025] Optionally, the second supporting layer 220 may be made of PET material.

[0026] In another embodiment, in order to further improve the structural strength of the entire display screen, the entire second supporting layer 220 may be made of metal.

[0027] In a further embodiment, in order to reduce the cost and improve the structural strength of the entire display screen, the material of the portion of the second support layer 220 at the bending area 400 may be metal. Specifically, the second support layer 220 may be provided with a mounting hole 221 at the bending area 400, and the mounting hole 221 may be filled with a reinforcing member 240, which is a metal member, that is, the reinforcing member 240 is made of metal, and the reinforcing member 240 can enhance the structural strength of the bending area 400 and improve the bending performance, and at the same time, can improve the front impact resistance of the display screen.

[0028] Optionally, the width of the reinforcement member 240 may be smaller than the width of the blind hole 310 .

[0029] In another embodiment, since the second supporting layer 220 is closer to the substrate 300 than the first supporting layer 210, the reinforcement 240 is closer to the substrate 300, and since the width of the reinforcement 240 is greater than or equal to the width of the blind hole 310, that is, the width of the reinforcement 240 is greater than or equal to the width of the bending area 400, during the process of folding the display screen, the reinforcement 240 can better resist the arching deformation of the substrate 300 at the blind hole 310, that is, while further enhancing the structural strength of the bending area 400, the imprint generated at the position of the blind hole 310 is reduced.

[0030] Optionally, the mounting hole 221 may be a blind hole, that is, the mounting hole 221 may be a groove opened on the second supporting layer 220, so that the thickness of the reinforcement 240 filled in the mounting hole 221 is smaller than the thickness of the area of ​​the second supporting layer 220 located outside the mounting hole 221, or the thickness of the reinforcement 240 may be greater than the thickness of the area of ​​the second supporting layer 220 located outside the mounting hole 221.

[0031] In another embodiment, please refer to Figure 1 and Figure 2 The mounting hole 221 can be a through hole, and the thickness of the reinforcement 240 can be equal to the thickness of the second supporting layer 220. That is, at this time, the thickness of the reinforcement 240 is relatively large, which enables the reinforcement 240 to provide sufficient strength support, thereby further improving the front impact resistance of the display screen. At the same time, the weight and thickness of the reinforcement 240 will not be too large, and thus the weight and thickness of the entire display screen will not be too large.

[0032] Optionally, at least one of the reinforcing member 240 and the first supporting layer 210 may be made of stainless steel, titanium, aluminum or titanium alloy, which are common in display screens. These materials are relatively low in cost, and the reinforcing member 240 and the first supporting layer 210 made of these materials are more likely to meet usage requirements. Of course, the reinforcing member 240 and the first supporting layer 210 may also be made of other metals.

[0033] Optionally, the display screen may further include a first magnetic member 510 and a second magnetic member 520 , wherein the first magnetic member 510 and the second magnetic member 520 are both located in the bending area 400 , and the first magnetic member 510 and the second magnetic member 520 may both be disposed on the support layer 200 .

[0034] Specifically, the first magnetic member 510 and the second magnetic member 520 can be respectively arranged on the first supporting layer 210 and the second supporting layer 220 of the supporting layer 200 described above. For example, the first magnetic member 510 can be arranged on the first supporting layer 210, and the second magnetic member 520 can be arranged on the second supporting layer 220. Under the target condition, there is a magnetic repulsion between the first magnetic member 510 and the second magnetic member 520. For example, the first magnetic member 510 and the second magnetic member 520 can both be electromagnetic members. Under the target condition, that is, between the first magnetic member 510 and the second magnetic member 520, there is a magnetic repulsion between the first magnetic member 510 and the second magnetic member 520. When both magnetic members 520 are energized, magnetic repulsion is generated between the first magnetic member 510 and the second magnetic member 520. Alternatively, one of the first magnetic member 510 and the second magnetic member 520 may be an electromagnetic member and the other may be a permanent magnet. Under target conditions, i.e., when the electromagnetic member is energized, magnetic repulsion is generated between the first magnetic member 510 and the second magnetic member 520. Alternatively, the first magnetic member 510 and the second magnetic member 520 may both be permanent magnets, in which case magnetic repulsion can always be generated between the first magnetic member 510 and the second magnetic member 520.

[0035] When the display screen is folded, as the distance between the first magnetic member 510 and the second magnetic member 520 gradually decreases, the magnetic repulsion generated between the two gradually increases, so that the first magnetic member 510 resists the arching deformation of the substrate 300 at the blind hole 310 through the second magnetic member 520 and the second supporting layer 220, thereby reducing the imprint. Of course, the display screen may also not include the first magnetic member 510 and the second magnetic member 520.

[0036] In another embodiment, please refer to Figure 1 and Figure 2 The first magnetic member 510 can be arranged on a side of the substrate 300 close to the supporting layer 200, that is, arranged in an area of ​​the substrate 300 that is easy to bulge and deform, and the second magnetic member 520 can be arranged on the supporting layer 200. When the display screen is folded, as the distance between the first magnetic member 510 and the second magnetic member 520 gradually decreases, the magnetic repulsion generated between the two gradually increases. Since the first magnetic member is in direct contact with the substrate 300, the first magnetic member 510 can directly resist the bulging deformation of the substrate 300 at the blind hole 310, thereby reducing the imprint, that is, this arrangement method has a better effect in resisting the deformation of the substrate 300.

[0037] Optionally, the second magnetic member 520 may be disposed on a side of the support layer 200 facing away from the substrate 300 .

[0038] In another embodiment, the support layer 200 has a first surface 230 facing the substrate 300, and the second magnetic member 520 can be disposed on the first surface 230, that is, the second magnetic member 520 is disposed on the first surface 230 of the support layer 200 close to the substrate 300, and the first surface 230 can specifically be the side of the second support layer 220 close to the substrate 300 described above, or, please refer to Figure 1 and Figure 2 When the second supporting layer 220 is provided with the aforementioned mounting hole 221 at the bending area 400, the first surface 230 can specifically be a side of the reinforcing member 240 filled in the mounting hole 221 close to the substrate 300. At this time, the distance between the first magnetic member 510 and the second magnetic member 520 is small. When the display screen is folded, the distance between the first magnetic member 510 and the second magnetic member 520 will be further reduced, and then the magnetic repulsion generated between the two will be further increased, so that the first magnetic member 510 can further resist the arch deformation of the substrate 300 at the blind hole 310, thereby further reducing the imprint.

[0039] Optionally, since the second supporting layer 220 is filled with the above-mentioned reinforcing member 240 at the bending area 400, and the reinforcing member 240 is made of metal, this can facilitate the second magnetic member 520 to be adsorbed on the reinforcing member 240. At the same time, since the substrate 300 is usually made of metal, this can facilitate the first magnetic member 510 to be adsorbed on the substrate 300, that is, this arrangement can facilitate the arrangement of the first magnetic member 510 and the second magnetic member 520 on the substrate 300 and the supporting layer 200. Of course, the first magnetic member 510 and the second magnetic member 520 can also be bonded to the substrate 300 and the supporting layer 200 respectively by adhesive.

[0040] Optionally, the width of the first magnetic member 510 and the width of the second magnetic member 520 may both be smaller than the width of the blind hole 310 .

[0041] In another embodiment, the width of the first magnetic member 510 and the width of the second magnetic member 520 may both be greater than or equal to the width of the blind hole 310 , so that the area of ​​the first magnetic member 510 that resists deformation of the substrate 300 is larger, and thus the substrate 300 is less likely to bend and deform at the blind hole 310 .

[0042] Optionally, the width of the first magnetic member 510 may be greater than or less than the width of the second magnetic member 520 , that is, the width of the first magnetic member 510 may not be equal to the width of the second magnetic member 520 .

[0043] In another embodiment, the width of the first magnetic member 510 may be equal to the width of the second magnetic member 520 , so that the magnetic repulsion force on each part of the first magnetic member 510 is more uniform, thereby uniformly resisting the arching deformation of the substrate 300 at the blind hole 310 .

[0044] Optionally, refer to Figure 1 The display screen may also include a first cover layer 610 and a second cover layer 630. In the thickness direction of the display screen, the first cover layer 610 and the second cover layer 630 may be sequentially stacked on the display layer 100. The first cover layer 610 and the second cover layer 630 are both used to protect the display layer 100. The first cover layer 610 and the second cover layer 630 may be bonded together by a first adhesive layer 620, and the second cover layer 630 and the display layer 100 may be bonded together by a second adhesive layer 640. Optionally, the first cover layer 610 may be made of PET material, and the second cover layer 630 may be made of UTG (Ultra Thin Glass) material. The first adhesive layer 620 and the second adhesive layer 640 may both be optical adhesives, so that the first adhesive layer 620 and the second adhesive layer 640 have a bonding effect without affecting the display effect of the display screen.

[0045] Optionally, the display screen may further include a third adhesive layer 710 and a fourth adhesive layer 720. The first supporting layer 210 and the second supporting layer 220 may be bonded together via the third adhesive layer 710, and the second supporting layer 220 and the substrate 300 may be bonded together via the fourth adhesive layer 720. The third adhesive layer 710 and the fourth adhesive layer 720 may both be pressure-sensitive adhesives, so that the third adhesive layer 710 and the fourth adhesive layer 720 can play a bonding role while buffering and protecting the first supporting layer 210, the second supporting layer 220 and the substrate 300.

[0046] Optionally, the display screen may further include a protective layer 810. Since the lower edge of the display screen, specifically the lower edge region of the display layer 100, is usually bent, and the region is bent to the back side of the substrate 300, the protective layer 810 is attached to the region to protect the region. Furthermore, the lower edge of the first supporting layer 210 may also be bent to support and protect the region. The lower edge of the first supporting layer 210 may also be bent to the back side of the substrate 300, and the lower edge of the first supporting layer 210 and the substrate 300 may be bonded together via a fifth adhesive layer 830.

[0047] The lower edge area of ​​the display layer 100 is electrically connected to the circuit board 900 through the driving chip 820 of the electronic device, that is, the driving chip 820 is electrically connected to the display layer 100 and the circuit board 900 respectively, and the circuit board 900 can drive the display layer 100 to emit light through the driving chip 820. The circuit board 900 can be arranged on the back of the substrate 300, and the circuit board 900 and the substrate 300 can be bonded and connected through the sixth adhesive layer 840, and the sixth adhesive layer 840 can be specifically conductive glue, that is, the circuit board 900 can be grounded through the conductive glue and the substrate 300.

[0048] Optionally, the present application further discloses an electronic device, the disclosed electronic device includes a housing and the display screen as described above, the display screen is connected to the housing, and the electronic device disclosed in the present application may be a foldable electronic device. In addition, since the number of imprints generated by the embodiments of the present application is relatively small, this can avoid affecting the bending experience and appearance of the foldable electronic device.

[0049] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A display screen, characterized in that: It comprises a display layer (100), a support layer (200) and a substrate (300), The display layer (100), the support layer (200) and the substrate (300) are sequentially stacked in the thickness direction of the display screen, the display screen has a bending region (400), and a blind hole (310) is provided on a side of the substrate (300) that is away from the display layer (100) and the support layer (200), at least a portion of the blind hole (310) is located in the bending region (400), and the width of the blind hole (310) is greater than or equal to the width of the bending region (400).

2. The display screen according to claim 1, characterized in that: The support layer (200) comprises a first support layer (210) and a second support layer (220) stacked together; in the thickness direction of the display screen, the display layer (100), the first support layer (210), the second support layer (220) and the substrate (300) are stacked in sequence; and the first support layer (210) is a metal layer.

3. The display screen according to claim 2, characterized in that: The thickness of the first supporting layer (210) is less than or equal to the thickness of the second supporting layer (220).

4. The display screen according to claim 2, characterized in that: The second supporting layer (220) is provided with a mounting hole (221) at the bending area (400), the mounting hole (221) is filled with a reinforcing member (240), and the reinforcing member (240) is a metal member.

5. The display screen according to claim 4, characterized in that: The width of the reinforcement member (240) is greater than or equal to the width of the blind hole (310).

6. The display screen according to claim 4, characterized in that: The mounting hole (221) is a through hole, and the thickness of the reinforcement member (240) is equal to the thickness of the second supporting layer (220).

7. The display screen according to claim 1, characterized in that: The display screen further comprises a first magnetic member (510) and a second magnetic member (520), wherein the first magnetic member (510) and the second magnetic member (520) are both located in the bending region (400), and the first magnetic member (510) is arranged on a side of the substrate (300) close to the supporting layer (200), and the second magnetic member (520) is arranged on the supporting layer (200), and under target conditions, there is a magnetic repulsion force between the first magnetic member (510) and the second magnetic member (520).

8. The display screen according to claim 7, characterized in that: The support layer (200) has a first surface (230) facing the substrate (300), and the second magnetic element (520) is arranged on the first surface (230).

9. The display screen according to claim 7, characterized in that: The width of the first magnetic member (510) and the width of the second magnetic member (520) are both greater than or equal to the width of the blind hole (310).

10. An electronic device, characterized in that: The invention comprises a housing and the display screen according to any one of claims 1 to 9, wherein the display screen is connected to the housing.

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