Display assembly and manufacturing method thereof, and display device

Abstract

A display assembly and a preparation method thereof, and a display device, relate to the field of display technology, and can improve the problem that marks are easily generated after the display panel, polarizer and cover plate are bonded together, that is, the flatness of the display panel is improved. In the first aspect, the display assembly includes: an organic light-emitting display flexible panel, a polarizer and a cover plate that are stacked, and the polarizer is located between the organic light-emitting display flexible panel and the cover plate; the polarizer has a through hole, and the polarizer is attached to the surface of the organic light-emitting display flexible panel, and the Young's modulus of the polarizer is less than 1GPa; the organic light-emitting display flexible panel covers the through hole of the polarizer, and the organic light-emitting display flexible panel has a light-transmitting area located at the through hole. In the second aspect, the display assembly includes: an organic light-emitting display flexible panel, a spacer film layer, a polarizer and a cover plate, and the spacer film layer is located between the organic light-emitting display flexible panel and the polarizer; the organic light-emitting display flexible panel has a light-transmitting area located at the through hole.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display component and a preparation method thereof, and a display device. Background Art

[0002] With the development of display technology, users have higher and higher requirements for the functions and effects of display devices such as mobile phones. In order to increase the screen-to-body ratio while ensuring the function of the front camera, the punch-hole screen is becoming more and more popular. The current punch-hole screen includes a display panel, a polarizer and a cover plate, in which the polarizer has a physical through hole, and the display panel has a light-transmitting area at the through hole position of the polarizer. After the three are attached, it is easy to cause uneven marks on the display panel at the through hole position. Summary of the invention

[0003] A display assembly and a preparation method thereof, and a display device can improve the problem that marks are easily generated after a display panel, a polarizer and a cover plate are attached to each other, that is, the flatness of the display panel is improved.

[0004] In the first aspect, a display assembly includes: a stacked organic light-emitting display flexible panel, a polarizer, and a cover plate, wherein the polarizer is located between the organic light-emitting display flexible panel and the cover plate; the polarizer has a through hole, the polarizer is attached to the surface of the organic light-emitting display flexible panel, and the Young's modulus of the polarizer is less than 1 GPa; the organic light-emitting display flexible panel covers the through hole of the polarizer, and the organic light-emitting display flexible panel has a light-transmitting area located at the through hole. By setting the Young's modulus of the polarizer with a through hole to be less than 1 GPa, the problem of easy imprinting after the display panel, the polarizer, and the cover plate are attached can be improved. Since the organic light-emitting display flexible panel has a light-transmitting area instead of a physical through hole, the flatness of the display panel is improved while increasing the screen-to-body ratio.

[0005] In a possible implementation manner, the through holes of the polarizer are filled with glue.

[0006] In a possible implementation, the through hole of the polarizer is filled with liquid optical glue;

[0007] The display assembly also includes an adhesive layer located between the polarizer and the cover plate, wherein the adhesive layer is solid optical adhesive, and the polarizer is bonded to the cover plate via the solid optical adhesive.

[0008] In a possible implementation, the display assembly further includes an adhesive layer between the polarizer and the cover plate, the adhesive layer is liquid optical adhesive, the polarizer is bonded to the cover plate via the liquid optical adhesive, and the liquid optical adhesive is filled in the through hole of the polarizer.

[0009] In the second aspect, a display component includes: a stacked organic light-emitting display flexible panel, a spacer film layer, a polarizer and a cover plate, the polarizer is located between the organic light-emitting display flexible panel and the cover plate, the spacer film layer is located between the organic light-emitting display flexible panel and the polarizer; the polarizer has a through hole, the polarizer is attached to the surface of the spacer film layer, the spacer film layer is a transparent film layer and covers the through hole of the polarizer; the organic light-emitting display flexible panel has a light-transmitting area located at the through hole. By arranging a spacer film layer between the polarizer and the organic light-emitting display flexible panel, the stress between the polarizer and the organic light-emitting display flexible panel can be blocked or reduced, and the problem of easy imprinting after the display panel, the polarizer and the cover plate are bonded can be improved. Since the organic light-emitting display flexible panel has a light-transmitting area instead of a physical through hole, the flatness of the display panel is improved while increasing the screen-to-body ratio.

[0010] In a possible implementation, the thickness of the spacer film layer is greater than 100 μm, and the Young's modulus of the spacer film layer is less than 5 GPa; or, the thickness of the spacer film layer is less than 50 μm, and the Young's modulus of the spacer film layer is greater than 70 GPa.

[0011] In a possible implementation manner, the material of the spacer film layer is plastic or glass; the thickness of the spacer film layer is h, 50 μm≤h≤150 μm.

[0012] In the third aspect, a display component includes: a stacked organic light-emitting display flexible panel, a polarizer and a cover plate, wherein the polarizer is located between the organic light-emitting display flexible panel and the cover plate; the polarizer has a polarization function material area and a non-polarization function material area; the organic light-emitting display flexible panel covers the polarization function material area and the non-polarization function material area of ​​the polarizer, and the organic light-emitting display flexible panel has a light-transmitting area located at the position of the non-polarization function material area. By providing the non-polarization function material area corresponding to the light-transmitting area in the organic light-emitting display flexible panel on the polarizer, it is not necessary to provide a physical through hole on the polarizer, so that during the bonding process of the various parts of the display component, the stress difference at each position between the organic light-emitting display flexible panel and the polarizer is small, thereby improving the problem of easy generation of marks after bonding between the display panel, the polarizer and the cover plate, and because the organic light-emitting display flexible panel has a light-transmitting area instead of a physical through hole, the flatness of the display panel is improved while increasing the screen-to-body ratio.

[0013] In a fourth aspect, a method for preparing a display component is provided, which is used to prepare the display component of the first aspect above, and the preparation of the display component includes: providing an organic light-emitting display flexible panel, a polarizer and a cover plate, attaching the polarizer to the surface of the organic light-emitting display flexible panel, and attaching the cover plate to the side of the polarizer away from the organic light-emitting display flexible panel in a heating environment.

[0014] In a fifth aspect, a display device comprises: a display component of the first, second or third aspect above; an optical device, wherein the optical device is located on a side of an organic light-emitting display flexible panel in the display component away from a polarizer, and the optical device is located at a position where a light-transmitting area of ​​the organic light-emitting display flexible panel is located.

[0015] The display assembly and its preparation method, and the display device, by improving the polarizer or the bonding method of the polarizer, can improve the problem of easy marks after the display panel, polarizer and cover plate are bonded together. Since the organic light-emitting display flexible panel has a light-transmitting area instead of a physical through hole, the flatness of the display panel is improved while increasing the screen-to-body ratio. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a display component in the prior art;

[0017] Figure 2 for Figure 1 A schematic diagram of a cross-sectional structure along the AA' direction;

[0018] Figure 3 It is a structural schematic diagram of another display component in the prior art;

[0019] Figure 4 for Figure 3 A schematic diagram of a cross-sectional structure in the BB' direction;

[0020] Figure 5 This is a schematic diagram of a surface photograph of a display panel after being attached to a polarizer with through holes in the prior art;

[0021] Figure 6 This is a schematic diagram of the exploded structure of a display component in an embodiment of the present application;

[0022] Figure 7 A top view of a display assembly in an embodiment of the present application;

[0023] Figure 8 for Figure 7 A schematic diagram of a cross-sectional structure in the CC' direction;

[0024] Fig. 9 It is a schematic diagram of the exploded structure of another display component in an embodiment of the present application;

[0025] Fig.10 for Figure 7 Another cross-sectional structure schematic diagram in CC' direction;

[0026] Fig.11 This is a schematic diagram of the exploded structure of another display component in an embodiment of the present application;

[0027] Fig.12 for Figure 7 Another cross-sectional structure schematic diagram in CC' direction;

[0028] Fig.13 It is a schematic diagram of a cross-sectional structure of a partial area of ​​a display device in an embodiment of the present application. DETAILED DESCRIPTION

[0029] The terms used in the implementation section of this application are only used to explain the specific embodiments of this application and are not intended to limit this application.

[0030] Before introducing the embodiments of the present application, the problem discovery process of the prior art is first described. Figure 1 and Figure 2 As shown, a display assembly in the prior art includes a stacked display panel 01, a polarizer 02 and a cover plate 03. In order to increase the screen-to-body ratio while ensuring the function of the front camera, a physical through hole 04 is provided on the display panel 01 and the polarizer 02. The polarizer 02 is attached to the display panel 01 and then attached to the cover plate 03 through an adhesive layer 05. The former camera is arranged below the display panel 01, at the through hole 04, to avoid the influence of the display panel 01 and the polarizer 02 on the front camera. However, the process of cutting the display panel 01 to make the through hole 04 will result in a large non-display area 06 being arranged around the through hole 04. In order to reduce the area of ​​the non-display area and to increase the screen-to-body ratio, the following is proposed: Figure 3 and Figure 4 Another display component shown adopts a blind hole design. The display component also includes a stacked display panel 01, a polarizer 02 and a cover plate 03. The polarizer 02 is attached to the display panel 01 and then attached to the cover plate 03 through an adhesive layer 05. However, the display panel 01 does not have a physical through hole, but a light-transmitting area 07. Only a physical through hole 04 is provided on the polarizer 02. The light-transmitting area 07 on the display panel 01 is set at the location where the through hole 04 is located. The display panel 01 does not have a circuit structure in the light-transmitting area 07 or sets as little circuit structure as possible to reduce the non-light-transmitting structure of the display panel 01 in the light-transmitting area 07 and ensure the effect of the front camera. Figure 3 and Figure 4 In the structure shown, since no physical through hole is made in the display panel 01 by cutting process, but a light-transmitting area 07 corresponding to the through hole 04 is reserved, under this structure, the area of ​​the non-displaying area required to be set around the through hole 04 of the display panel 01 is small, thereby further improving the screen-to-body ratio. Figure 3 and Figure 4In the structure shown, since the display panel 01 is a flexible display panel 01, after the display panel 01, the polarizer 02 and the cover plate 03 are attached to each other, the stress between the display panel 01 and the polarizer 02 will cause an uneven mark to be produced at the position of the through hole 04 of the display panel 01, thereby adversely affecting the display effect of the display panel 01 or the shooting effect of the front camera. Figure 5 As shown, Figure 5 This is a surface photo of a display panel after being bonded to a polarizer with multiple physical through holes. The position pointed by the arrow has a mark caused by the through holes. It should be noted that Figure 5 It is only used to indicate the phenomenon that the display panel will produce marks on the surface after bonding, and does not represent the actual display component. Figure 3 and Figure 4 In the structure shown, although the screen-to-body ratio is improved through the design of blind holes, the design of the blind holes will cause the display panel to be uneven. Therefore, how to improve the flatness of the display panel while improving the screen-to-body ratio is a problem to be solved in the embodiments of the present application. The embodiments of the present application are explained below.

[0031] like Figure 6 , Figure 7 and Figure 8 As shown, an embodiment of the present application provides a display component, including: an organic light-emitting display flexible panel 1, a polarizer 2 and a cover plate 3 that are stacked, the polarizer 2 is located between the organic light-emitting display flexible panel 1 and the cover plate 3; the polarizer 2 has a through hole 20, the polarizer 2 is attached to the surface of the organic light-emitting display flexible panel 1, and the Young's modulus of the polarizer 2 is less than 1 GPa; the organic light-emitting display flexible panel 1 covers the through hole 20 of the polarizer 2, and the organic light-emitting display flexible panel 1 has a light-transmitting area 10 located at the position of the through hole 20.

[0032] Specifically, the organic light-emitting display flexible panel 1 is a flexible display panel, that is, the organic light-emitting display flexible panel 1 is a display panel made based on a flexible substrate substrate, the organic light-emitting display flexible panel 1 has a light-emitting device, the light-emitting device has an anode, a cathode and an organic light-emitting layer, the organic light-emitting layer is located between the anode and the cathode, when a voltage is applied to the anode and the cathode, the organic light-emitting layer will emit light to achieve a display function, the organic light-emitting display flexible panel 1 also includes a circuit and a signal line for driving the light-emitting device, wherein, in the light-transmitting area 10, the non-light-transmitting structure in the organic light-emitting display flexible panel 1, such as the light-emitting device, the signal line and the circuit, etc., can be arranged in the light-transmitting area 10 through a pre-layout. In addition, only the film layer of the light-transmitting material is retained in the light-transmitting area 10. Of course, in a possible implementation, a small number of opaque structures can also be provided in the light-transmitting area 10, and outside the light-transmitting area 10, the organic light-emitting display flexible panel 1 will be normally laid out, that is, it includes opaque structures such as light-emitting devices, signal lines and circuits to realize the display function, that is, the display area in the organic light-emitting display flexible panel 1 can surround the light-transmitting area 10. In the embodiment of the present application, the organic light-emitting display flexible panel 1 does not need to generate physical through holes through a cutting process, but the light-transmitting function is realized by setting the light-transmitting area 10, so that the non-display area caused by the cutting process can be avoided to improve the screen-to-body ratio. The polarizer 2 is used to block the emission of ambient light to improve the display effect. In order to avoid the adverse effects of the polarizer 2 on optical devices such as the front camera, the polarizer 2 has a physical through hole 20, and the physical through hole 20 corresponds to the position of the light-transmitting area 10, that is, on the plane where the polarizer 2 is located, the positive projection of the light-transmitting area 10 in the organic light-emitting display flexible panel 1 overlaps with the through hole 20. The cover plate 3 is used to protect the organic light-emitting display flexible panel 1 and the polarizer 2. The cover plate 3 is, for example, a glass cover plate. Since the Young's modulus of the polarizer 2 is less than 1 GPa, during the bonding process between the organic light-emitting display flexible panel 1, the polarizer 2 and the cover plate 3, although the stress applied to the organic light-emitting display flexible panel 1 by the through hole 20 inside and outside the polarizer 2 is different, since the Young's modulus of the polarizer 2 is less than 1 GPa, it is not easy for the organic light-emitting display flexible panel 1 to produce a mark corresponding to the through hole 20. The surface of the organic light-emitting display flexible panel 1 of the display assembly after bonding in the embodiment of the present application is tested, and the peak to valley (PV) value of the surface of the organic light-emitting display flexible panel 1 can be obtained as <1. The PV value is used to characterize the deviation between the actual surface and the ideal plane, that is, to reflect the flatness. The smaller the PV value, the flatter the surface. A PV value of <1.3 can meet the requirements of the organic light-emitting display flexible panel.

[0033] The display component in the embodiment of the present application can improve the problem of easy marks after the display panel, polarizer and cover plate are glued together by setting the Young's modulus of the polarizer with through holes to be less than 1GPa. Since the organic light-emitting display flexible panel has a light-transmitting area instead of a physical through hole, the flatness of the display panel is improved while increasing the screen-to-body ratio.

[0034] In a possible implementation, Figure 6 , Figure 7 and Figure 8 As shown, the through hole 20 of the polarizer 2 is filled with glue. During the manufacturing process of the display component, the polarizer 2 can be first attached to the surface of the organic light-emitting display flexible panel 1, and then the glue is filled into the through hole 20 of the polarizer 2, and then the cover plate 3 is attached to the side of the polarizer 2 away from the organic light-emitting display flexible panel 1. In this way, during the process of attaching the cover plate 3, since the through hole 20 is filled with glue, the stress applied to the organic light-emitting display flexible panel 1 by the inside and outside of the through hole 20 is more uniform, thereby further improving the flatness of the surface of the organic light-emitting display flexible panel 1.

[0035] In a possible implementation, Figure 6 , Figure 7 and Figure 8 As shown, the through hole of the polarizer 2 is filled with liquid optical glue, such as optically clear resin (OCR); the display assembly also includes a glue layer 4 located between the polarizer 2 and the cover plate 3, and the glue layer 4 is solid optical glue (OCA), and the polarizer 2 is bonded to the cover plate 3 through the solid optical glue. For example, in the process of manufacturing the display component, the polarizer 2 can be first attached to the surface of the organic light-emitting display flexible panel 1, and then the OCR can be filled into the through hole 20 of the polarizer 2 by a dispensing machine, and then a layer of solid optical glue is evenly coated on the surface of the polarizer 2 on the side away from the organic light-emitting display flexible panel 1, and then the cover plate 3 is attached to the side of the polarizer 2 away from the organic light-emitting display flexible panel 1, so that the cover plate 3 is bonded to the surface of the polarizer 2 by the solid optical glue. In this way, in the process of attaching the cover plate 3, since the through hole 20 is filled with glue, the stress applied to the organic light-emitting display flexible panel 1 by the inside and outside of the through hole 20 is more uniform, thereby further improving the flatness of the surface of the organic light-emitting display flexible panel 1.

[0036] In a possible implementation, Figure 6 , Figure 7 and Figure 8As shown, the display assembly further includes an adhesive layer 4 between the polarizer 2 and the cover plate 3, and the adhesive layer 4 is a liquid optical adhesive, such as OCR. The polarizer 2 is bonded to the cover plate 3 by the liquid optical adhesive, and the liquid optical adhesive is filled in the through hole 20 of the polarizer 2. For example, in the process of manufacturing the display assembly, a layer of liquid optical adhesive can be uniformly coated on the surface of the side of the polarizer 2 away from the organic light-emitting display flexible panel 1. Since the liquid optical adhesive can be filled into the through hole 20 during the coating process, the cover plate 3 is then attached to the side of the polarizer 2 away from the organic light-emitting display flexible panel 1, so that the cover plate 3 is bonded to the surface of the polarizer 2 by the liquid optical adhesive. In this way, in the process of attaching the cover plate 3, since the through hole 20 is filled with adhesive, the stress applied by the through hole 20 to the organic light-emitting display flexible panel 1 is more uniform, thereby further improving the flatness of the surface of the organic light-emitting display flexible panel 1.

[0037] like Figure 7 , Fig. 9 and Fig.10 As shown, an embodiment of the present application also provides a display component, including: a stacked organic light-emitting display flexible panel 1, a spacer film layer 5, a polarizer 2 and a cover plate 3, the polarizer 2 is located between the organic light-emitting display flexible panel 1 and the cover plate 3, the spacer film layer 5 is located between the organic light-emitting display flexible panel 1 and the polarizer 2; the polarizer 2 has a through hole 20, the polarizer 2 is attached to the surface of the spacer film layer 5, the spacer film layer 5 is a transparent film layer and covers the through hole 20 of the polarizer 2; the organic light-emitting display flexible panel 1 has a light-transmitting area 10 located at the position of the through hole 20.

[0038] Specifically, Figure 7 , Fig. 9 and Fig.10In the illustrated embodiment structure, the specific structures of the organic light-emitting display flexible panel 1, the polarizer 2 and the cover plate 3 may be the same as those in the above-described embodiment. The organic light-emitting display flexible panel 1 is a flexible display panel, that is, the organic light-emitting display flexible panel 1 is a display panel made based on a flexible substrate substrate, the organic light-emitting display flexible panel 1 has a light-emitting device, the light-emitting device has an anode, a cathode and an organic light-emitting layer, the organic light-emitting layer is located between the anode and the cathode, when a voltage is applied to the anode and the cathode, the organic light-emitting layer will emit light to achieve a display function, the organic light-emitting display flexible panel 1 also includes a circuit and a signal line for driving the light-emitting device, wherein, in the light-transmitting area 10, the non-light-transmitting structures in the organic light-emitting display flexible panel 1, such as the light-emitting device, the signal line and the circuit, etc., can be arranged outside the light-transmitting area 10 through a pre-layout. , only the film layer of the light-transmitting material is retained in the light-transmitting area 10. Of course, in a possible implementation, a small number of opaque structures can also be provided in the light-transmitting area 10, and outside the light-transmitting area 10, the organic light-emitting display flexible panel 1 will be normally laid out, that is, including light-emitting devices, signal lines and circuits and other opaque structures to realize the display function, that is, the display area in the organic light-emitting display flexible panel 1 can surround the light-transmitting area 10. In the embodiment of the present application, the organic light-emitting display flexible panel 1 does not need to generate physical through holes through a cutting process, but the light-transmitting function is realized by setting the light-transmitting area 10, so that the non-display area caused by the cutting process can be avoided to improve the screen-to-body ratio. The polarizer 2 is used to block the emission of ambient light to improve the display effect. In order to avoid the adverse effects of the polarizer 2 on optical devices such as the front camera, the polarizer 2 has a physical through hole 20, and the physical through hole 20 corresponds to the position of the light-transmitting area 10, that is, on the plane where the polarizer 2 is located, the orthographic projection of the light-transmitting area 10 in the organic light-emitting display flexible panel 1 overlaps with the through hole 20. The cover plate 3 is used to protect the organic light emitting display flexible panel 1 and the polarizer 2 , and the cover plate 3 is, for example, a glass cover plate. Figure 7 , Fig. 9 , Fig.10 The structure of the embodiment shown and Figure 6 , Figure 7 , Figure 8 The difference between the structures of the embodiments shown is that a spacer film layer 5 is added between the organic light-emitting display flexible panel 1 and the polarizer 2, and the polarizer 2 does not need to be set in a specific Young's modulus range. Through the stress barrier effect of the spacer film layer 5, during the bonding process between the organic light-emitting display flexible panel 1, the spacer film layer 5, the polarizer 2 and the cover plate 3, the stress effect exerted by the polarizer 2 on the organic light-emitting display flexible panel 1 is blocked or reduced, so it is not easy for the organic light-emitting display flexible panel 1 to produce a mark corresponding to the through hole 20. Figure 7 , Fig. 9 and Fig.10The surface of the organic light emitting display flexible panel 1 of the display assembly after bonding in the illustrated embodiment is tested, and it can be obtained that the PV value of the surface of the organic light emitting display flexible panel 1 is less than 1, which can meet the requirements of the organic light emitting display flexible panel.

[0039] This application Figure 7 , Fig. 9 and Fig.10 The display component in the illustrated embodiment can block or reduce the stress between the polarizer and the organic light-emitting display flexible panel by setting a spacer film layer between the polarizer and the organic light-emitting display flexible panel, and can improve the problem of easy marks after the display panel, polarizer and cover plate are bonded together. Since the organic light-emitting display flexible panel has a light-transmitting area instead of a physical through hole, the flatness of the display panel is improved while increasing the screen-to-body ratio.

[0040] In a possible implementation, Figure 7 , Fig. 9 and Fig.10 As shown, the thickness of the spacer film layer 5 is greater than 100 μm, and the Young's modulus of the spacer film layer 5 is less than 5 GPa; or, the thickness of the spacer film layer 5 is less than 50 μm, and the Young's modulus of the spacer film layer 5 is greater than 70 GPa. The function of the spacer film layer 5 is to block or reduce the stress between the polarizer 2 and the organic light-emitting display flexible panel 1. Therefore, if the thickness of the spacer film layer 5 is large, even if the Young's modulus of the spacer film layer 5 is small, it can also play a role in blocking stress. Through verification, the thickness of the spacer film layer 5 can be set to be greater than 100 μm, and the Young's modulus of the spacer film layer 5 is less than 5 GPa; and if the thickness of the spacer film layer 5 is small, it is necessary to set the Young's modulus of the spacer film layer 5 to be larger. Through verification, the thickness of the spacer film layer 5 can be set to be less than 50 μm, and the Young's modulus of the spacer film layer 5 is greater than 70 GPa.

[0041] In a possible implementation, Figure 7 , Fig. 9 and Fig.10 As shown, the material of the spacer film layer 5 is plastic or glass; the thickness of the spacer film layer 5 is h, 50 μm≤h≤150 μm.

[0042] In addition, it should be noted that Figure 7 , Fig. 9 and Fig.10 In the illustrated embodiment structure, there is no limitation on the bonding method between the polarizer 2 and the cover plate 3. For example, an adhesive layer 4 may be provided between the polarizer 2 and the cover plate 3 so that the polarizer 2 and the cover plate 3 are bonded together through the adhesive layer 4. The adhesive layer 4 may be of any type, such as OCR or OCA.

[0043] like Figure 7 , Fig.11 and Fig.12As shown, an embodiment of the present application also provides a display component, including: an organic light-emitting display flexible panel 1, a polarizer 2 and a cover plate 3 that are stacked, the polarizer 2 is located between the organic light-emitting display flexible panel 1 and the cover plate 3; the polarizer 2 has a polarizing functional material area 21 and a non-polarizing functional material area 22; the organic light-emitting display flexible panel 1 covers the polarizing functional material area 21 and the non-polarizing functional material area 22 of the polarizer 2, and the organic light-emitting display flexible panel 1 has a light-transmitting area 10 located at the position of the non-polarizing functional material area 22.

[0044] Specifically, Figure 7 , Fig.11 and Fig.12In the illustrated embodiment structure, the specific structures of the organic light-emitting display flexible panel 1 and the cover plate 3 may be the same as those in the above-mentioned embodiment, and the specific structures of the organic light-emitting display flexible panel 1, the polarizer 2 and the cover plate 3 may be the same as those in the above-mentioned embodiment. The organic light-emitting display flexible panel 1 is a flexible display panel, that is, the organic light-emitting display flexible panel 1 is a display panel made based on a flexible substrate substrate, the organic light-emitting display flexible panel 1 has a light-emitting device, the light-emitting device has an anode, a cathode and an organic light-emitting layer, the organic light-emitting layer is located between the anode and the cathode, when a voltage is applied to the anode and the cathode, the organic light-emitting layer will emit light to realize the display function, the organic light-emitting display flexible panel 1 also includes a circuit and a signal line for driving the light-emitting device, wherein, in the light-transmitting area 10, the non-light-transmitting structures in the organic light-emitting display flexible panel 1, such as the light-emitting device, the signal line and the circuit, etc., can be arranged outside the light-transmitting area 10 through a pre-layout. , only the film layer of the light-transmitting material is retained in the light-transmitting area 10. Of course, in a possible implementation, a smaller number of opaque structures may also be provided in the light-transmitting area 10, and outside the light-transmitting area 10, the organic light-emitting display flexible panel 1 will have a normal layout, that is, it includes light-emitting devices, signal lines, circuits and other opaque structures to achieve the display function, that is, the display area in the organic light-emitting display flexible panel 1 can surround the light-transmitting area 10. In the embodiment of the present application, the organic light-emitting display flexible panel 1 does not need to generate physical through holes through a cutting process, but the light-transmitting function is achieved by setting the light-transmitting area 10, which can avoid the non-display area caused by the cutting process to increase the screen-to-body ratio. The polarizer 2 is used to block the emission of ambient light to improve the display effect. In order to avoid the adverse effects of the polarizer 2 on optical devices such as the front camera, the polarizer 2 has a non-polarizing functional material area 22, and the non-polarizing functional material area 22 corresponds to the position of the light-transmitting area 10, that is, on the plane where the polarizer 2 is located, the positive projection of the light-transmitting area 10 in the organic light-emitting display flexible panel 1 overlaps with the non-polarizing functional material area 22. The polarizer 2 has no light polarization function in the non-polarizing functional material area 22, that is, any light in this area can directly pass through the non-polarizing functional material without changing the polarization direction, and the polarizer 2 has a related polarization function in the polarizing functional material area 21 to block the emission of ambient light. The cover plate 3 is used to protect the organic light-emitting display flexible panel 1 and the polarizer 2, and the cover plate 3 is, for example, a glass cover plate. Figure 7 , Fig.11 , Fig.12 The structure of the embodiment shown and Figure 6 , Figure 7 , Figure 8The difference between the structures of the embodiments shown is that the polarizer 2 replaces the physical through hole by setting the non-polarizing functional material area 22. Thus, since there is no physical through hole on the polarizer 2, even if the organic light-emitting display flexible panel 1 and the polarizer 2 are directly attached to each other, the stress difference at each position between the two is small, and no mark will be caused on the surface of the organic light-emitting display flexible panel 1. Figure 7 , Fig.11 and Fig.12 The surface of the organic light emitting display flexible panel 1 of the display assembly after bonding in the illustrated embodiment is tested, and it can be obtained that the PV value of the surface of the organic light emitting display flexible panel 1 is less than 0.5, which can meet the requirements of the organic light emitting display flexible panel.

[0045] This application Figure 7 , Fig.11 , Fig.12 The display component in the illustrated embodiment does not need to provide a physical through hole on the polarizer by providing the non-polarizing functional material area corresponding to the light-transmitting area in the organic light-emitting display flexible panel on the polarizer. As a result, during the bonding process of the various parts of the display component, the stress difference at various positions between the organic light-emitting display flexible panel and the polarizer is small, thereby improving the problem of easy generation of marks after bonding the display panel, the polarizer and the cover plate. Since the organic light-emitting display flexible panel has a light-transmitting area instead of a physical through hole, the flatness of the display panel is improved while increasing the screen-to-body ratio.

[0046] The present application also provides a method for preparing a display assembly, for preparing Figure 6 , Figure 7 and Figure 8 The display assembly in the structure of the embodiment shown, the preparation of the display assembly includes: providing an organic light-emitting display flexible panel 1, a polarizer 2 and a cover plate 3, attaching the polarizer 2 to the surface of the organic light-emitting display flexible panel 1, and attaching the cover plate 3 to the side of the polarizer 2 away from the organic light-emitting display flexible panel 1 in a heated environment. Heating the cover plate 3 during the bonding process in a vacuum environment can further improve the problem of easy imprinting after bonding between the display panel, the polarizer and the cover plate.

[0047] like Fig.13As shown, the embodiment of the present application also provides a display device, including: the display component 100 in any of the above embodiments: an optical device 200, the optical device 200 is located on the side of the organic light-emitting display flexible panel 1 in the display component 100 away from the polarizer, and the optical device 200 is located at the position of the light-transmitting area 10 of the organic light-emitting display flexible panel 1, that is, on the plane where the organic light-emitting display flexible panel 1 is located, the orthographic projection of the optical device 200 overlaps with the light-transmitting area 10, so that the optical device 200 can obtain light from the other side of the display component 100 through the light-transmitting area 10. For example, the optical device 200 can be a camera, which can take photos on the other side of the display component 100 through the light-transmitting area 10. Among them, the specific structure and principle of the display component can be the same as those described in any of the above embodiments, and will not be repeated here. The display device can be any electronic device with a display function, such as a touch screen, a mobile phone, a tablet computer, a laptop computer or a television.

[0048] In the embodiments of the present application, "at least one" refers to one or more, and "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. Among them, A and B can be singular or plural. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can be represented by: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0049] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A display component, characterized in that: include: An organic light-emitting display flexible panel, a polarizer and a cover plate are stacked, wherein the polarizer is located between the organic light-emitting display flexible panel and the cover plate; The polarizer has a through hole, the polarizer is attached to the surface of the organic light-emitting display flexible panel, and the Young's modulus of the polarizer is less than 1 GPa; The organic light emitting display flexible panel covers the through hole of the polarizer, and the organic light emitting display flexible panel has a light-transmitting area located at the position of the through hole.

2. The display assembly according to claim 1, characterized in that The through holes of the polarizer are filled with glue.

3. The display assembly according to claim 2, characterized in that: The through holes of the polarizer are filled with liquid optical glue; The display assembly further includes a glue layer located between the polarizer and the cover plate, wherein the glue layer is solid optical glue, and the polarizer is bonded to the cover plate via the solid optical glue.

4. The display assembly according to claim 2, characterized in that: The display assembly also includes a glue layer located between the polarizer and the cover plate, the glue layer is liquid optical glue, the polarizer is bonded to the cover plate through the liquid optical glue, and the liquid optical glue is filled in the through hole of the polarizer.

5. A display component, characterized in that: include: An organic light-emitting display flexible panel, a spacer film layer, a polarizer and a cover plate are stacked, wherein the polarizer is located between the organic light-emitting display flexible panel and the cover plate, and the spacer film layer is located between the organic light-emitting display flexible panel and the polarizer; The polarizer has a through hole, the polarizer is attached to the surface of the spacer film layer, the spacer film layer is a transparent film layer and covers the through hole of the polarizer, and the Young's modulus of the polarizer is less than 1 GPa; The organic light emitting display flexible panel has a light-transmitting area located at the position of the through hole.

6. The display assembly according to claim 5, characterized in that: The thickness of the spacer film layer is greater than 100 μm, and the Young's modulus of the spacer film layer is less than 5 GPa; Alternatively, the thickness of the spacer film layer is less than 50 μm, and the Young's modulus of the spacer film layer is greater than 70 GPa.

7. The display assembly according to claim 5, characterized in that: The material of the spacer film layer is plastic or glass; The thickness of the spacer film layer is h, 50 μm≤h≤150 μm.

8. A method for preparing a display component, characterized in that: Used to prepare a display assembly as claimed in any one of claims 1 to 4, the preparation of the display assembly comprising: An organic light-emitting display flexible panel, a polarizer and a cover plate are provided. The polarizer is attached to the surface of the organic light-emitting display flexible panel, and the cover plate is attached to a side of the polarizer away from the organic light-emitting display flexible panel in a heating environment.

9. A display device, characterized in that: include: A display assembly as claimed in any one of claims 1 to 7: An optical device, wherein the optical device is located on a side of the organic light-emitting display flexible panel in the display assembly away from the polarizer, and the optical device is located at a position where a light-transmitting area of ​​the organic light-emitting display flexible panel is located.

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