Display device

Abstract

An embodiment of the present invention provides a display device, comprising a flexible display panel and a protective film layer arranged on the display side of the flexible display panel, the protective film layer is made of a light-transmitting material, the flexible display panel comprises a fixed display area and a rollable display area connected to the fixed display area, the protective film layer covers at least a portion of the fixed display area, and the protective film layer covers at least a portion of the rollable display area, a transparent adhesive layer is arranged between the protective film layer and the fixed display area, and a scattering layer is arranged between the protective film layer and the rollable display area; the strength of the display device can be improved.

Description

Technical Field

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

[0002] With the rapid development of science and technology, flexible panels have gradually achieved mass production and commercialization. Sliding and rolling is another innovative application form of flexible panels after folding and curling. This form enables consumers to adjust the display area of ​​the flexible panel according to their needs. This is not only convenient for users to carry around, but also provides users with a better user experience than folding panels.

[0003] However, the current flexible panels have poor mechanical properties such as impact resistance and scratch resistance. Flexible panels are easily damaged when subjected to external impacts, seriously affecting the reliability of product use. Summary of the invention

[0004] Embodiments of the present invention provide a display device and a display apparatus, which can improve the strength of the display apparatus.

[0005] In a first aspect, an embodiment of the present invention provides a display device, comprising a flexible display panel and a protective film layer arranged on the display side of the flexible display panel, the protective film layer is made of a light-transmitting material, the flexible display panel comprises a fixed display area and a rollable display area connected to the fixed display area, the protective film layer covers at least a portion of the fixed display area, and the protective film layer covers at least a portion of the rollable display area, a transparent adhesive layer is arranged between the protective film layer and the fixed display area, and a scattering layer is arranged between the protective film layer and the rollable display area.

[0006] In an exemplary embodiment, the protective film layer includes a first part and a second part, the first part at least covers a portion of the fixed display area, the second part at least covers a portion of the rollable display area, the transparent adhesive layer is arranged between the first part and the fixed display area, and the scattering layer is arranged between the second part and the rollable display area.

[0007] In an exemplary embodiment, the modulus of the second portion is less than or equal to the modulus of the first portion.

[0008] In an exemplary embodiment, the thickness of the scattering layer is less than or equal to the thickness of the transparent adhesive layer.

[0009] In an exemplary embodiment, the scattering layer includes a base film and a scattering particle layer disposed on the base film.

[0010] In an exemplary embodiment, a support member is further included, and the support member is located on a side of the flexible display panel away from the protective film layer, and the support member at least covers a portion of the fixed display area.

[0011] In an exemplary embodiment, the protective film layer is an ultra-thin glass or polyimide layer.

[0012] In an exemplary embodiment, a scroll is further included, and the rollable display area is rolled on the scroll.

[0013] In an exemplary embodiment, the reel includes a first baffle and a second baffle that are oppositely disposed, and a shaft body located between the first baffle and the second baffle, the shaft body having a curling surface, and at least a portion of the first baffle and / or the second baffle protrudes from the curling surface.

[0014] In an exemplary embodiment, a first tensioning member is further included, the rollable display area has a first end, the first end is wound around the rolling shaft, and one end of the first tensioning member is connected to the first end.

[0015] In an exemplary embodiment, a second tensioning member is further included, the protective film layer has a second end, the second end is wound around the reel, and one end of the second tensioning member is connected to the second end.

[0016] In an exemplary embodiment, a guide structure is further included, the guide structure including a first guide surface and a second guide surface, the other end of the first tensioning member bypasses the first guide surface; the other end of the second tensioning member bypasses the second guide surface.

[0017] In an exemplary embodiment, a guide structure is further included, the guide structure including a first guide shaft and a second guide shaft, the other end of the first tensioning member bypasses the first guide shaft; the other end of the second tensioning member bypasses the second guide shaft.

[0018] In an exemplary embodiment, a sliding housing is further included, one end of the sliding housing is connected to the guide structure, and the other end of the sliding housing is connected to the reel.

[0019] The present invention provides a display device, which provides a protective film layer on the display side of a flexible display panel to improve the strength of the display side of the flexible display panel, thereby solving the problem that the display side of the flexible display panel is easily damaged when subjected to external impact.

[0020] Of course, it is not necessary to achieve all of the advantages described above at the same time when implementing any product or method of the present invention. Other features and advantages of the present invention will be described in the subsequent description embodiments, and partly become apparent from the description embodiments, or be understood by practicing the present invention. The purposes and other advantages of the embodiments of the present invention can be achieved and obtained by the structures specifically pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention. The shapes and sizes of the components in the accompanying drawings do not reflect the actual proportions and are only intended to illustrate the contents of the present invention.

[0022] Figure 1 It is a schematic diagram of the structure of a display device according to an embodiment of the present invention;

[0023] Figure 2 is a side view of a display device according to an embodiment of the present invention;

[0024] Figure 3 Schematic diagram of the structure of the protective film layer in the display device according to an embodiment of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of a scroll in a display device according to an embodiment of the present invention;

[0026] Figure 5 Schematic diagram of the structure of the guide structure in the display device according to the embodiment of the present invention Figure 1 ;

[0027] Figure 6 Schematic diagram of the structure of the guide structure in the display device according to the embodiment of the present invention Figure 2 . DETAILED DESCRIPTION

[0028] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention. It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined arbitrarily with each other.

[0029] An embodiment of the present invention provides a display device, including a flexible display panel and a protective film layer arranged on the display side of the flexible display panel, the protective film layer is made of a light-transmitting material, the flexible display panel includes a fixed display area and a rollable display area connected to the fixed display area, the protective film layer at least covers a portion of the fixed display area, and the protective film layer at least covers a portion of the rollable display area, a transparent adhesive layer is arranged between the protective film layer and the fixed display area, and a scattering layer is arranged between the protective film layer and the rollable display area.

[0030] Figure 1 It is a schematic diagram of the structure of a display device according to an embodiment of the present invention; Figure 2 FIG. 1 is a side view of a display device according to an embodiment of the present invention. Figure 2 for Figure 1 Take the side view as an example. Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a display device, including a flexible display panel 1 and a protective film layer 2 arranged on the display side of the flexible display panel 1. The protective film layer 2 is made of a light-transmitting material, so that the light emitted by the flexible display panel 1 passes through the protective film layer 2 to display an image. The protective film layer 2 is made of a material with high strength, which can protect the display side of the flexible display panel 1, improve the strength of the display side of the flexible display panel 1, and solve the problem that the display side of the flexible display panel 1 is easily damaged when subjected to external impact. Among them, the display side of the flexible display panel 1 refers to the side of the flexible display panel 1 that displays the image.

[0031] In an exemplary embodiment, the flexible display panel 1 includes a fixed display area 101 and a rollable display area 102 connected to the fixed display area 101. The fixed display area 101 is a display area fixed to the flexible display panel 1. When the flexible display panel 1 displays an image, the fixed display area 101 is always in a stretched state. The rollable display area 102 is located at at least one end of the fixed display area 101, and the rollable display area 102 can be rolled up. When the flexible display panel 1 displays an image, the rollable display area 102 can be stretched, and the rolled up state is stretched to form a stretched state, so as to increase the display area of ​​the flexible display panel 1. When the flexible display panel 1 does not display an image, the rollable display area 102 can be rolled up, and the stretched state is rolled up to form a rolled up state, so as to reduce the area of ​​the flexible display panel 1 for easy carrying.

[0032] In an exemplary embodiment, the protective film layer 2 can be made of a variety of materials, as long as the protective film layer 2 is both light-transmitting and protective. For example, the protective film layer 2 can be ultra-thin glass. The thickness of the ultra-thin glass is ≤100μm. The ultra-thin glass is soft and bendable, has better flatness and transparency, and is heat-resistant and stable. The ultra-thin glass can protect the flexible display panel 1 without affecting the display effect and bendable performance of the flexible display panel 1. Alternatively, the protective film layer 2 can be a polyimide (PI) layer, which is soft, bendable, and has better flatness and transparency. Among them, the thickness of the protective film layer 2 can be 20um±2um.

[0033] In an exemplary embodiment, the protective film layer 2 may adopt various structures. For example, the protective film layer 2 may be a transparent cover plate. The protective film layer 2 may also be a structure other than a transparent cover plate.

[0034] In an exemplary embodiment, the protective film layer 2 covers at least a portion of the fixed display area 101 to protect the fixed display area 101. For example, the protective film layer 2 covers the entire fixed display area 101; or, the protective film layer 2 covers the entire fixed display area 101 and the entire rollable display area 102. Alternatively, the protective film layer 2 covers a portion of the fixed display area 101 and a portion of the rollable display area 102.

[0035] In an exemplary embodiment, a transparent adhesive layer 3 is disposed between the protective film layer 2 and the fixed display area 101 , and the transparent adhesive layer 3 is used to connect the protective film layer 2 and the fixed display area 101 .

[0036] In an exemplary embodiment, the protective film layer 2 can slide on the rollable display area 102 , and wrinkles on the protective film layer 2 can be avoided when the protective film layer 2 is rolled up.

[0037] In an exemplary embodiment, a scattering layer 4 is provided between the protective film layer 2 and the rollable display area 102, and the scattering layer 4 is used to fill the gap between the protective film layer 2 and the rollable display area 102, and scatter the light emitted by the rollable display area 102, so that the display effect of the rollable display area 102 is consistent with the display effect of the fixed display area 101.

[0038] Figure 3 FIG. 1 is a schematic diagram of the structure of the protective film layer in the display device according to an embodiment of the present invention. Figure 3 As shown, the protective film layer 2 includes a first portion 201 and a second portion 202, wherein the first portion 201 at least covers a portion of the fixed display area 101, and the second portion 202 at least covers a portion of the rollable display area 102. For example, the first portion 201 covers the entire fixed display area 101, and the second portion 202 covers the entire rollable display area 102.

[0039] In an exemplary embodiment, the first part 201 and the second part 202 may be an integral structure, made of the same material and through the same manufacturing process. Alternatively, the first part 201 and the second part 202 may be different film layers, made of different materials and through different manufacturing processes.

[0040] In an exemplary embodiment, the first portion 201 and the second portion 202 may be connected; or, the first portion 201 and the second portion 202 may not be connected.

[0041] In an exemplary embodiment, the first portion 201 and the second portion 202 are different film layers. The modulus of the second portion 202 is less than or equal to the modulus of the first portion 201 , so that the second portion 202 can be rolled together with the rollable display area 102 .

[0042] In an exemplary embodiment, Figure 3 As shown, the transparent adhesive layer 3 is located between the first portion 201 and the fixed display area 101 , and is used to connect the first portion 201 and the fixed display area 101 .

[0043] In an exemplary embodiment, the transparent adhesive layer 3 may be optically clear adhesive (OCA for short), optically clear resin (OCR for short), or other suitable materials, which is not limited in the embodiment of the present invention.

[0044] In an exemplary embodiment, Figure 3 As shown, the transparent adhesive layer 3 is disconnected at the rollable display area 102, so that no transparent adhesive layer 3 is arranged between the second part 202 and the rollable display area 102, so that the second part 202 can slide on the rollable display area 102, avoiding wrinkles in the second part 202 when rolling.

[0045] In an exemplary embodiment, Figure 3 As shown, the scattering layer 4 is located between the second portion 202 and the rollable display area 102, and is used to fill the gap between the second portion 202 and the rollable display area 102, and scatter the light emitted by the rollable display area 102, so that the display effect of the rollable display area 102 is consistent with the display effect of the fixed display area 101.

[0046] In an exemplary embodiment, the scattering layer 4 includes a base film and a scattering particle layer disposed on the base film. The scattering particle layer can be connected to the base film by a coating process or a laminating process. The base film can be made of a flexible material so that the scattering layer 4 can be curled. For example, the base film is made of polyimide (PI). The scattering particle layer contains scattering particles, which can scatter the light emitted by the rollable display area 102, so that the display effect of the rollable display area 102 is consistent with the display effect of the fixed display area 101. The scattering particles can include at least one of acrylic particles and resin particles.

[0047] In an exemplary embodiment, Figure 3 As shown, the thickness of the scattering layer 4 is less than or equal to the thickness of the transparent adhesive layer 3, so as to avoid the step difference between the scattering layer 4 and the transparent adhesive layer 3, so as to ensure the flatness of the flexible display panel 1, and to avoid the problem of inconsistent display effects of the fixed display area 101 and the rollable display area 102 due to the refraction of light. Among them, the thickness of the transparent adhesive layer 3 can be 25um±5um. The thickness of the scattering layer 4 can be 20um±2um.

[0048] In an exemplary embodiment, Figure 1 As shown, the display device of the embodiment of the present invention further includes a support member 5, which is located on the side of the flexible display panel 1 away from the protective film layer 2, and the support member 5 at least covers a portion of the fixed display area 101. The support member 5 is used to support the fixed display area 101 to ensure the flatness of the fixed display area 101.

[0049] Figure 4 FIG. 1 is a schematic diagram of the structure of a scroll in a display device according to an embodiment of the present invention. Figure 1 and Figure 4 As shown, the display device of the embodiment of the present invention further includes a reel 6, which is located on the side of the flexible display panel 1 away from the protective film layer 2. The rollable display area 102 and the second part 202 can be rolled together on the reel 6, and the reel 6 can rotate to drive the rollable display area 102 and the second part 202 to roll or stretch.

[0050] In an exemplary embodiment, Figure 4 As shown, the scroll 6 includes a first baffle 601 and a second baffle 602 that are relatively arranged, and a shaft 603 located between the first baffle 601 and the second baffle 602, the shaft 603 has a curling surface 604, and the curling surface 604 is used to curl the rollable display area 102 and the second part 202. At least part of the first baffle 601 and / or the second baffle 602 protrudes from the curling surface 603 to limit the movement of the rollable display area 102 and the second part 202 to prevent the rollable display area 102 and the second part 202 from sliding out of the curling surface 604.

[0051] Figure 5 Schematic diagram of the structure of the guide structure in the display device according to the embodiment of the present invention Figure 1 ; Figure 6 Schematic diagram of the structure of the guide structure in the display device according to the embodiment of the present invention Figure 2 In an exemplary embodiment, if Figure 1 , Figure 5 and Figure 6 As shown, the display device of the embodiment of the present invention further includes a first tensioning member 7, and the rollable display area 102 has a first end 1021, which is an end of the rollable display area 102 away from the fixed display area 101. The first end 1021 is wound around the reel 6, and the first tensioning member 7 is located on the side of the fixed display area 1 away from the first portion 201. One end of the first tensioning member 7 is connected to the first end 1021, and is used to tighten the flexible display panel 1 to ensure the flatness of the flexible display panel 1, and to drive the flexible display panel 1 to curl or stretch. The first tensioning member 7 can be made of polyimide (PI).

[0052] In an exemplary embodiment, Figure 1 , Figure 5 and Figure 6 As shown, the display device of the embodiment of the present invention further includes a second tensioning member 8, and the protective film layer 2 has a second end 203, and the second end 203 is an end of the second part 202 of the protective film layer 2 away from the first part 201. The second end 203 is wound around the reel 6, and one end of the second tensioning member 8 is connected to the second end 203. Since the display device of the embodiment of the present invention does not have a transparent adhesive layer 3 between the rollable display area 102 and the protective film layer 2, the protective film layer 2 can slide on the rollable display area 102, resulting in the first tensioning member 7 being unable to drive the protective film layer 2 through the rollable display area 102. To this end, the display device of the embodiment of the present invention is connected to the protective film layer 2 through the second tensioning member 8, so that the second tensioning member 8 can tighten the protective film layer 2 to ensure the flatness of the protective film layer 2, and drive the protective film layer 2 to curl or stretch. Among them, the second tensioning member 8 can be made of silicone.

[0053] In an exemplary embodiment, Figure 5 As shown, the display device of the embodiment of the present invention further includes a guide structure 9, and the guide structure 9 is cylindrical. The guide structure 9 includes a first guide surface 901 and a second guide surface 902. For example, the cross-sections of the first guide surface 901 and the second guide surface 902 can both be circular. The other end of the first tensioning member 7 bypasses the first guide surface 901 and is connected to the support member 5. The other end of the second tensioning member 8 bypasses the second guide surface 902 and is connected to the support member 5. Among them, the other end of the first tensioning member 7 refers to the end of the first tensioning member 7 away from the first end 1021. The other end of the second tensioning member 8 refers to the end of the second tensioning member 8 away from the second end 203.

[0054] In an exemplary embodiment, Figure 6 As shown, the display device of the embodiment of the present invention also includes a guide structure 9, which includes a first guide shaft 903 and a second guide shaft 904. The other end of the first tensioning member 7 bypasses the first guide shaft 903 and is connected to the support member 5; the other end of the second tensioning member 8 bypasses the second guide shaft 904 and is connected to the support member 5.

[0055] In an exemplary embodiment, Figure 2 As shown, the display device of the embodiment of the present invention further includes a sliding shell 10, and the sliding shell 10 is a telescopic structure. One end of the sliding shell 10 is connected to the guide structure 9, and the other end of the sliding shell 10 is connected to the scroll 6. The telescopic movement of the sliding shell 10 can drive the stretching and curling of the rollable display area 102 and the second part 202.

[0056] The display device in the embodiment of the present invention may be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, or the like.

[0057] In the exemplary embodiment, in the description of the embodiments of the present invention, it is to be understood that the terms "middle", "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0058] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] Although the embodiments disclosed in the present invention are as above, the contents described are only embodiments adopted to facilitate understanding of the present invention and are not intended to limit the present invention. Any technician in the field to which the present invention belongs can make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in the present invention, but the patent protection scope of the present invention shall still be subject to the scope defined in the attached claims.

Claims

1. A display device, characterized in that: It includes a flexible display panel and a protective film layer arranged on the display side of the flexible display panel, the protective film layer is made of a light-transmitting material, the flexible display panel includes a fixed display area and a rollable display area connected to the fixed display area, the protective film layer at least covers a portion of the fixed display area, and the protective film layer at least covers a portion of the rollable display area, a transparent adhesive layer is arranged between the protective film layer and the fixed display area, the transparent adhesive layer is optical adhesive or optically transparent resin; a scattering layer is arranged between the protective film layer and the rollable display area.

2. The display device according to claim 1, characterized in that The protective film layer includes a first part and a second part, the first part at least covers a portion of the fixed display area, the second part at least covers a portion of the rollable display area, the transparent adhesive layer is arranged between the first part and the fixed display area, and the scattering layer is arranged between the second part and the rollable display area.

3. The display device according to claim 2, characterized in that: The modulus of the second portion is less than or equal to the modulus of the first portion.

4. The display device according to claim 1, characterized in that The thickness of the scattering layer is less than or equal to the thickness of the transparent adhesive layer.

5. The display device according to claim 1, characterized in that The scattering layer includes a base film and a scattering particle layer arranged on the base film.

6. The display device according to any one of claims 1 to 5, characterized in that: It also includes a support member, which is located on a side of the flexible display panel away from the protective film layer, and the support member at least covers a portion of the fixed display area.

7. The display device according to any one of claims 1 to 5, characterized in that: The protective film layer is an ultra-thin glass or polyimide layer.

8. The display device according to claim 1, characterized in that: It also includes a scroll, and the rollable display area is rolled up on the scroll.

9. The display device according to claim 8, characterized in that: The reel comprises a first baffle and a second baffle which are arranged opposite to each other, and a shaft body located between the first baffle and the second baffle. The shaft body has a curling surface, and at least a part of the first baffle and / or the second baffle protrudes from the curling surface.

10. The display device according to claim 8, characterized in that: It also includes a first tensioning member, the rollable display area has a first end, the first end is wound around the rolling shaft, and one end of the first tensioning member is connected to the first end.

11. The display device according to claim 10, characterized in that: It also includes a second tensioning member, the protective film layer has a second end, the second end is wound around the reel, and one end of the second tensioning member is connected to the second end.

12. The display device according to claim 11, characterized in that: The invention also comprises a guide structure, wherein the guide structure comprises a first guide surface and a second guide surface, wherein the other end of the first tensioning member bypasses the first guide surface, and the other end of the second tensioning member bypasses the second guide surface.

13. The display device according to claim 11, characterized in that The invention also comprises a guide structure, wherein the guide structure comprises a first guide shaft and a second guide shaft, wherein the other end of the first tensioning member passes around the first guide shaft; and the other end of the second tensioning member passes around the second guide shaft.

14. The display device according to claim 12 or 13, characterized in that: It also includes a sliding shell, one end of which is connected to the guide structure, and the other end of which is connected to the reel.

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