WO2023225965A1 - 显示模组及显示装置 - Google Patents

显示模组及显示装置 Download PDF

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Publication number
WO2023225965A1
WO2023225965A1 PCT/CN2022/095373 CN2022095373W WO2023225965A1 WO 2023225965 A1 WO2023225965 A1 WO 2023225965A1 CN 2022095373 W CN2022095373 W CN 2022095373W WO 2023225965 A1 WO2023225965 A1 WO 2023225965A1
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WO
WIPO (PCT)
Prior art keywords
layer
light
transparent
support plate
display module
Prior art date
Application number
PCT/CN2022/095373
Other languages
English (en)
French (fr)
Inventor
张胜星
陈立强
石佳凡
Original Assignee
京东方科技集团股份有限公司
成都京东方光电科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 京东方科技集团股份有限公司, 成都京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to PCT/CN2022/095373 priority Critical patent/WO2023225965A1/zh
Priority to CN202280001475.5A priority patent/CN117480437A/zh
Publication of WO2023225965A1 publication Critical patent/WO2023225965A1/zh

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements

Definitions

  • the present disclosure relates to the field of display technology, and in particular, to a display module and a display device.
  • Flexible display panels generally use flexible materials as the base, and a support member needs to be provided on the back of the flexible display panel to support the flexible display panel.
  • the support is generally made of opaque material, it cannot meet the light requirements of the camera, which greatly limits the use of under-screen cameras.
  • a display module includes a flexible display panel, a support plate, a transparent support structure and a light shielding part.
  • the flexible display panel includes a display surface, and the display surface includes a light-transmitting area.
  • the support plate is located on a side of the flexible display panel away from the display surface; the support plate has a light-transmitting hole.
  • the transparent support structure is filled in the light-transmitting hole; the orthographic projection of the transparent support structure on the display surface at least partially overlaps with the light-transmitting area.
  • the light-shielding portion is located on at least part of the side wall of the light-transmitting hole.
  • the display module further includes an anti-reflection and anti-reflection layer.
  • the anti-reflection and anti-reflection layer is located in the light-transmitting hole.
  • the anti-reflection and anti-reflection layer is stacked with the transparent support structure.
  • the anti-reflection and anti-reflection layer is located on a side of the transparent support structure close to the flexible display panel.
  • the anti-reflection and anti-reflection layer includes at least two first refractive layers and at least one second refractive layer, and the second refractive layer is located between two adjacent layers of the first refractive layers. Wherein, the refractive index of the first refractive layer is smaller than the refractive index of the second refractive layer.
  • the display module further includes a transparent protective layer.
  • a transparent protective layer is located on a side of the support plate facing away from the flexible display panel. The orthographic projection of the transparent protective layer on the support plate covers the light-transmitting hole.
  • the minimum distance between the boundary of the orthographic projection of the transparent protective layer on the support plate and the light-transmitting hole is greater than or equal to 0.5 mm.
  • the modulus of the transparent protective layer ranges from 8 MPa to 100 MPa.
  • the thickness of the transparent protective layer gradually decreases from the center to the edge of the transparent protective layer.
  • the maximum thickness of the transparent protective layer is d0, 20 ⁇ m ⁇ d0 ⁇ 50 ⁇ m.
  • the support plate includes a first metal layer.
  • the thickness of the first metal layer is d1, 80 ⁇ m ⁇ d1 ⁇ 300 ⁇ m.
  • the support plate includes a second metal layer and an auxiliary support layer.
  • the auxiliary support layer is located on a side of the second metal layer close to the flexible display panel.
  • the unit weight of the auxiliary support layer is smaller than the unit weight of the second metal layer.
  • the sum of the thickness of the second metal layer and the thickness of the auxiliary support layer is d2, 80 ⁇ m ⁇ d2 ⁇ 300 ⁇ m.
  • the material of the auxiliary support layer includes carbon fiber.
  • the display module further includes a first adhesive layer, a second adhesive layer and a transparent elastomer layer arranged in a stack.
  • the transparent elastomer layer is located between the first adhesive layer and the second adhesive layer, and the first adhesive layer is located on a side of the transparent elastomer layer close to the support plate.
  • the light transmittance of the transparent elastomer layer is greater than or equal to 95%.
  • the elastic modulus of the transparent elastomer layer ranges from 40 MPa to 500 MPa.
  • the material of the transparent elastomer layer includes at least one of thermoplastic polyurethane elastomer, thermoplastic elastomer or thermoplastic polyester elastomer.
  • the display module further includes a light-gathering layer.
  • the light-gathering layer includes a plurality of microlenses arranged at intervals. Wherein, a plurality of microlenses are located between the transparent elastomer layer and the first adhesive layer or the second adhesive layer. Orthographic projections of the plurality of microlenses on the display surface and orthographic projections of the transparent support structure on the display surface at least partially overlap.
  • the plurality of microlenses are located between the transparent elastomer layer and the second adhesive layer. At least one of the microlenses includes a plurality of optical film layers arranged in a stack. Among the two adjacent optical film layers, the refractive index of the optical film layer close to the support plate is lower than the refractive index of the optical film layer facing away from the support plate; and, among the multi-layer optical film layers, The refractive index of the optical film layer closest to the support plate is greater than the refractive index of the transparent elastomer layer.
  • the material of the transparent support structure includes at least one of ultra-thin glass, polyethylene terephthalate, polymethyl methacrylate, or polycarbonate.
  • the size of the light-shielding portion in a direction along the transparent support structure toward the support plate is d3, 0.1 ⁇ m ⁇ d3 ⁇ 1 ⁇ m.
  • the support plate includes a first support part, a second support part, and a bendable part located between the first support part and the second support part.
  • the bendable part has a plurality of grooves; and the light-transmitting hole is located in the first support part and/or the second support part.
  • a display device includes: a display module and an optical device as described in any of the above embodiments.
  • the optical device is located on a side of the support plate away from the flexible display panel, and the orthographic projection of the optical device on the support plate at least partially overlaps with the light-transmitting hole.
  • Figure 1 is a structural diagram of a display module provided by some embodiments of the present disclosure.
  • Figure 2 is a cross-sectional structural diagram at A-A’ in Figure 1;
  • Figure 3 is a structural diagram of a flexible display panel provided by some embodiments of the present disclosure.
  • Figure 4 is another cross-sectional structural diagram at A-A’ in Figure 1;
  • Figure 5 is another cross-sectional structural diagram at A-A’ in Figure 1;
  • Figure 6 is another cross-sectional structural diagram at A-A’ in Figure 1;
  • Figure 7 is another cross-sectional structural diagram at A-A’ in Figure 1;
  • Figure 8 is another cross-sectional structural diagram at A-A’ in Figure 1;
  • Figure 9 is another cross-sectional structural diagram at A-A’ in Figure 1;
  • Figure 10 is another cross-sectional structural diagram at A-A’ in Figure 1;
  • Figure 11 is a structural diagram of the microlens in Figure 10.
  • Figure 12A is a structural diagram of a support plate provided by some embodiments of the present disclosure.
  • Figure 12B is a structural diagram of another support plate provided by some embodiments of the present disclosure.
  • Figure 12C is a structural diagram of another support plate provided by some embodiments of the present disclosure.
  • Figure 12D is a structural diagram of another support plate provided by some embodiments of the present disclosure.
  • Figure 13 is another cross-sectional structural diagram at A-A’ in Figure 1;
  • Figure 14 is another cross-sectional structural diagram at A-A’ in Figure 1;
  • Figure 15 is a flow structure diagram of a display module provided by some embodiments of the present disclosure.
  • Figure 16 is a cross-sectional structural view of a display device provided by some embodiments of the present disclosure.
  • first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.
  • At least one of A, B and C has the same meaning as “at least one of A, B or C” and includes the following combinations of A, B and C: A only, B only, C only, A and B The combination of A and C, the combination of B and C, and the combination of A, B and C.
  • a and/or B includes the following three combinations: A only, B only, and a combination of A and B.
  • Example embodiments are described herein with reference to cross-sectional illustrations and/or plan views that are idealized illustrations.
  • the thickness of layers and regions are exaggerated for clarity. Accordingly, variations from the shapes in the drawings due, for example, to manufacturing techniques and/or tolerances are contemplated.
  • example embodiments should not be construed as limited to the shapes of regions illustrated herein but are to include deviations in shapes that result from, for example, manufacturing. For example, an etched area shown as a rectangle will typically have curved features. Accordingly, the regions shown in the figures are schematic in nature and their shapes are not intended to illustrate the actual shapes of regions of the device and are not intended to limit the scope of the exemplary embodiments.
  • FIGS. 1 and 2 are structural diagram of a display module provided by some embodiments of the present disclosure
  • Figure 2 is a cross-sectional structural diagram taken at A-A' in Figure 1 .
  • some embodiments of the present disclosure provide a display module 100 .
  • the display module 100 includes a flexible display panel 10 , a support plate 20 , a transparent support structure 30 and a light shielding part 40 .
  • the flexible display panel 10 includes a display surface 11 , and the display surface 11 includes a light-transmitting area Q.
  • the light-transmitting area Q is at least a partial area of the display surface 11 of the flexible display panel 10 .
  • FIG. 1 takes the light-transmitting area Q being located at a position on the display surface 11 away from the lower frame of the display module 100 as an example. It can be understood that in other embodiments, the light-transmitting area Q may also be located at a position of the display surface 11 close to the lower frame of the display module 100 .
  • the flexible display panel 10 includes an organic electroluminescent display panel (Organic Light-Emitting Diode, OLED), a quantum dot electroluminescent display panel (Quantum Dot Light-Emitting Diode, QLED) or a micro light-emitting diode display panel (Micro light-emitting diode). Light-Emitting Diode, Micro-LED).
  • OLED Organic Light-Emitting Diode
  • QLED Quantum Dot Light-Emitting Diode
  • Micro light-emitting diode Micro light-LED.
  • FIG. 3 is a structural diagram of a flexible display panel provided by some embodiments of the present disclosure.
  • the flexible display panel 10 includes a pixel driving circuit P and a plurality of light-emitting devices O. By driving the light-emitting device O to emit light through the pixel driving circuit P, the flexible display panel 10 can display images. It can be understood that the above-mentioned light-transmitting area Q is photographed during the imaging stage, and during the display stage, the screen is displayed synchronously with other areas of the display surface 11 .
  • FIG. 3 takes the pixel driving circuit P and the plurality of light-emitting devices O at other positions on the display surface 11 except the light-transmitting area Q as an example.
  • the connection and driving method of the pixel driving circuit P in the light-transmitting area Q and the light-emitting device Q are the same.
  • the pixel density (Pixels Per Inch, PPI) in the light-transmitting area Q is lower than the pixel density at other positions of the display surface 11, so that Meet the requirements for light transmittance of under-screen cameras.
  • the light-transmitting area Q can be a camera area or a fingerprint recognition area.
  • the light-transmitting area Q is an image capturing area as an example. The same applies to fingerprint recognition.
  • the support plate 20 is located on the side of the flexible display panel 10 away from the display surface 11 , and has a light-transmitting hole 21 on the support plate 20 .
  • the support plate 20 can play a role in supporting the flexible display panel 10, and image light can be injected into the under-screen camera through the light-transmitting hole 21, thereby realizing a full-screen design of the display module 10.
  • light-transmitting holes 30 are provided on the support plate 20 that cannot transmit light.
  • the support plate 20 due to the insufficient strength of each film layer of the flexible display panel 10, there will be a gap between the support plate 20 and the flexible display panel 10.
  • the light-emitting surface 11 of the flexible display panel 10 corresponding to the light-transmitting hole 21 will form a depression, causing the molding and pressing to be clearly observed on the light-emitting surface 11 of the flexible display panel 10 corresponding to the light-transmitting hole 21 . Marks and other appearance problems.
  • a transparent support structure 30 is filled in the light-transmitting hole 21 , and the orthographic projection and light-transmitting area of the transparent support structure 30 on the display surface 11 are Q at least partially overlaps.
  • the transparent support structure 30 can be combined with the support plate 20 to support the flexible display panel 10 , thereby reducing or eliminating the molding problem of the display module 100 caused by the lack of force at the position of the light-transmitting hole 21 .
  • the side surface of the transparent support structure 30 close to the flexible display panel 10 is flush with the side surface of the support plate 20 close to the flexible display panel 10 , and the side surface of the transparent support structure 30 facing away from the flexible display panel 10 is flush with the support.
  • the surface of the side of the panel 20 away from the flexible display panel 10 is flush, so that the transparent support structure 30 can completely fill the transmission hole 21, thereby reducing or eliminating the display mode caused by the lack of force at the position of the transmission hole 21.
  • Group 100 stencil problem is the side surface of the transparent support structure 30 close to the flexible display panel 10 is flush with the side surface of the support plate 20 close to the flexible display panel 10 , and the side surface of the transparent support structure 30 facing away from the flexible display panel 10 is flush with the support.
  • the surface of the side of the panel 20 away from the flexible display panel 10 is flush, so that the transparent support structure 30 can completely fill the transmission hole 21, thereby reducing or eliminating the display mode caused by the lack of force at the position of the transmission hole 21.
  • Group 100 stencil problem is
  • the side surface of the transparent support structure 30 close to the flexible display panel 10 is flush with the side surface of the support plate 20 close to the flexible display panel 10 , and the transparent support structure 30 is away from the flexible display panel.
  • One side surface of the transparent support structure 30 is located at the light-transmitting hole 21; alternatively, the side surface of the transparent support structure 21 close to the flexible display panel 10 is located at the light-transmitting hole 21, and the side surface of the transparent support structure 30 is away from the flexible display panel 10 and the support plate 20
  • the surface of the side facing away from the flexible display panel 10 is flush; alternatively, the side surface of the transparent support structure 21 close to the flexible display panel 10 and the side surface of the transparent support structure 30 facing away from the flexible display panel 10 are both located in the light-transmitting hole 21 .
  • the above-mentioned “flush” includes that a certain side surface of the transparent support structure 30 is absolutely flush or approximately flush with a certain side surface of the support plate 20 . That is, the floating range of the step difference between a certain side surface of the transparent support structure 30 and a certain side surface of the support plate 20 does not exceed the error threshold, and the two surfaces can also be considered to be relatively "flat".
  • the error threshold may be, for example, 0.5 mm.
  • Figure 4 is another cross-sectional structural diagram at A-A’ in Figure 1.
  • the flexible display panel 10 includes a base substrate 00 , a driving circuit layer 01 , a light emitting device layer 02 , a pixel definition layer 06 and an encapsulation layer 07 .
  • the driving circuit layer 01 is used to drive the light-emitting devices in the light-emitting device layer 02 to emit light to perform display.
  • the light-emitting device layer 02 includes a plurality of light-emitting devices O' located in the light-transmitting area Q, and light-emitting devices O located in areas of the display surface other than the light-transmitting area Q.
  • Both the light-emitting device O and the light-emitting device O' include an anode layer 03, a cathode layer 05, and a light-emitting layer 04 located between the anode layer 03 and the cathode layer 05.
  • the size of the light-emitting device O' is smaller than the size of the light-emitting device O. This can improve the light transmittance of the light-transmitting area Q.
  • the density between multiple light-emitting devices O' needs to be smaller than the density between multiple light-emitting devices O'. This can improve the light transmittance of the light-transmitting area Q.
  • multiple light-emitting devices O having the same size are used as an example for illustration. It should be noted that in other embodiments, when the light-emitting device O includes a red light-emitting device, a green light-emitting device and a blue light-emitting device. Since the light-emitting layer 04 in the blue light-emitting device has the lowest luminous efficiency, followed by the light-emitting layer 04 in the red light-emitting device, the light-emitting layer 04 in the green light-emitting device has the highest luminous efficiency.
  • the size of the blue light-emitting device can be set to be the largest, followed by the red light-emitting device, and the size of the green light-emitting device is the smallest, which is beneficial to improving the color shift problem of the display module 100 .
  • the above theory is also applicable to the light-emitting device O' at the position Q of the light-transmitting area, and will not be described again here.
  • the light-shielding portion 40 is located on at least part of the side wall 211 of the light-transmitting hole 21 .
  • the light L1 emitted by the light-emitting device O will be incident on the light-shielding portion 40 in the light-transmitting hole 21, and the light L2 emitted by the light-emitting device O' may also be incident on the light-shielding portion 40 in the light-transmitting hole 21.
  • the light-shielding portion 40 can Absorb light L1 and light L2. This can improve the light leakage problem at the position of the light-transmitting hole 21 on the supporting plate 20 .
  • the anode layer 03 in the light-emitting device O' is located between the light-emitting layer 04 and the light-transmitting hole 21, the anode layer 03 is generally made of metal.
  • the light L3 emitted vertically downward by the optical device O' will be reflected out of the display module 100 by its corresponding anode layer 03. Therefore, the anode layer 03 can be used to prevent the light L3 emitted by the optical device O' from affecting the imaging effect.
  • the light-shielding portion 40 is located on at least part of the side wall 211 of the light-transmitting hole 21 .
  • the light-shielding part 40 may be a closed-loop structure and is arranged around the entire transparent support structure 30; or the light-shielding part 40 may be a non-closed-loop structure and is arranged around part of the transparent support structure 30.
  • the above-mentioned structure of the light-shielding portion 40 can improve the light leakage problem at the position of the light-transmitting hole 21 .
  • the light-shielding part 40 may be light-shielding glue.
  • the light-shielding glue can improve the light leakage problem at the position of the light-transmitting hole 21; on the other hand, the light-shielding glue can also be used to fix the transparent support structure 30 and the support plate 20 to prevent the transparent support structure 30 from falling off relative to the support plate 20. It is beneficial to improve the yield rate of the display module 100 .
  • the light-shielding glue may be at least one adhesive material such as epoxy resin, silicone, methyl methacrylate, or the like.
  • the functions of shading and fixing the transparent support structure 30 can be achieved at the same time.
  • the display module 100 provided by some embodiments of the present disclosure fills the transparent support structure 30 in the light-transmitting hole 21.
  • the transparent supporting structure 30 will not have a greater impact on the light transmittance of the light-transmitting hole 21. It can meet the normal needs of the under-screen camera; it can also be combined with the support plate 20 to support the flexible display panel 10, thereby reducing or eliminating the molding problem caused by the lack of force at the light-transmitting hole 21.
  • a light-shielding portion 40 is provided on at least part of the side wall 211 of the light-transmitting hole 21 .
  • the light-shielding portion 40 can block the light emitted by the light-emitting device O inside the flexible display panel 10 from entering the light-transmitting hole 21 , thereby improving the quality of the support plate 20 .
  • the material of the transparent support structure 30 includes at least one of ultra-thin glass, polyethylene terephthalate, polymethyl methacrylate, or polycarbonate.
  • the material of the transparent support structure 30 may be any one, or any two or more of ultra-thin glass, polyethylene terephthalate, polymethylmethacrylate or polycarbonate. Combined materials. Filling it into the light-transmitting hole 21 can not only support the flexible display panel 100 to avoid molding, but also effectively improve the light transmittance in the light-transmitting hole 21 .
  • the size of the light shielding portion 40 is d3, 0.1 mm ⁇ d3 ⁇ 1 mm.
  • the transparent support structure 30 can be fixed by the light shielding part 40 and the light shielding part 40 can be used to absorb the interference generated in the flexible display panel 10 light, it can also reduce the blocking of the image light that needs to pass through the light-transmitting hole 21 by the light-shielding part 40, improve the transmittance of the image light, and improve the imaging quality; when the size of the light-shielding part 40 is equal to or approaches 1 mm, the light-shielding part 40 40 is relatively wide.
  • the size of the light shielding part 40 in the lateral direction may be 0.1 mm, 0.3 mm, 0.5 mm or 1 mm.
  • Figure 5 is another cross-sectional structural view at A-A’ in Figure 1.
  • the display module 100 further includes a reducing reflection and anti-reflection layer 50 .
  • the anti-reflection and anti-reflection layer 50 is located in the light transmission hole 21 .
  • the anti-reflection and anti-reflection layer 50 and the transparent support structure 30 are stacked.
  • the anti-reflection and anti-reflection layer 50 is disposed opposite to the transparent support structure 30 in the light-transmitting hole 21 .
  • the anti-reflection and anti-reflection layer 50 can be used to increase the light transmittance in the light-transmitting hole 21, thereby greatly increasing the amount of external light entering the light-transmitting area Q, thereby improving the front camera effect and face recognition accuracy.
  • FIG. 5 takes the anti-reflection and anti-reflection layer 50 located on the side of the transparent support structure 30 close to the flexible display panel 10 as an example.
  • the anti-reflection layer 50 may be sandwiched between two transparent support structures 30 , or the anti-reflection layer 50 may be located on a side of the transparent support structure 30 away from the flexible display panel 10 . side.
  • the relative positional relationship between the anti-reflection layer 50 and the transparent support structure 30 shown in FIG. 5 can be further increased compared with the relative positional relationship between the anti-reflection layer 50 and the transparent support structure 30 in other embodiments.
  • the light transmittance in the light-transmitting hole 21 is an example.
  • Figure 6 is another cross-sectional structural view at A-A’ in Figure 1.
  • the anti-reflection and anti-reflection layer 50 includes at least two first refractive layers 51 and at least one second refractive layer 52 .
  • the second refractive layer 52 is located between two adjacent first refractive layers 51 .
  • the refractive index of the first refractive layer 51 is smaller than the refractive index of the second refractive layer 52 .
  • the anti-reflection and anti-reflection layer 50 includes a first refractive layer 51 and a second refractive layer 52 that are alternately stacked.
  • the film layers closest to the flexible display panel 10 and the support plate 20 are all the first refractive layers 51, that is, the outermost film layers above and below the anti-reflection and anti-reflection layer 50 are all the first refractive layers.
  • Refractive layer 51 is, the film layers closest to the flexible display panel 10 and the support plate 20.
  • the refractive index of the first refractive layer 51 is set to be smaller than that of the second refractive layer 52 , and the refractive index of the first refractive layer 51 close to the transparent support structure 30 is smaller than that of the transparent support structure 30 .
  • the thickness of the first refractive layer 51 / the second refractive layer 52 of any layer of the anti-reflection and anti-reflection layer 50 is at the nanometer level, which is 1/4 of the wavelength of visible light.
  • the light waves reflected back by the two columns will be coherent and destructive, so that It achieves the anti-reflection effect and greatly increases the amount of external light entering the light-transmitting area Q, thus achieving the purpose of improving the front-facing camera effect and face recognition accuracy.
  • the anti-reflection and anti-reflection layer 50 includes two first refractive layers 51 and one second refractive layer 52 as an example. It can be understood that in other embodiments, the anti-reflection and anti-reflection layer 50 may have a 3-layer, 5-layer, 7-layer or more layer structure.
  • the first refractive layer 51 may be silicon oxide
  • the second refractive layer 52 may be niobium oxide.
  • the anti-reflection and anti-reflection layer 50 can be disposed on the transparent support structure 30 by vapor deposition.
  • the anti-reflection layer 50 includes two first refractive layers 51 and one second refractive layer 52
  • the first refractive layers 51 and the second refractive layer 52 can be sequentially disposed on the layers by vapor deposition. on the transparent support structure 30.
  • Figure 7 is another cross-sectional structural diagram at A-A' in Figure 1.
  • the display module 100 further includes a transparent protective layer 60 .
  • the transparent protective layer 60 is located on the side of the support plate 20 facing away from the flexible display panel 10 .
  • the orthographic projection of the transparent protective layer 60 on the support plate 20 covers the light-transmitting hole 21 .
  • the transparent protective layer 60 is formed on the side of the light-transmitting hole 21 facing away from the flexible display panel 10, the surface of the transparent protective layer 60 facing away from the supporting plate 20 is a relatively smooth surface. Furthermore, the transparent protective layer 60 can be used to fill the recessed position 41 formed by the step difference between the film layer structures in the light-transmitting hole 21 , thereby improving the molding problem of the display module 100 caused by the recessed position 41 .
  • a recessed position 41 is formed at the corresponding position of the light-shielding portion 40 , and the recessed position 41 cannot bear force, so that the flexible display can be subsequently attached.
  • a transparent protective layer 60 can be provided on the side of the support plate 20 away from the flexible display panel 10 and at the position of the light-transmitting hole 21.
  • the surface of the transparent protective layer 60 close to the side of the support plate 20 can fill the recessed position 41.
  • the surface of the transparent protective layer 60 on the side away from the support plate 20 is a relatively smooth surface, thereby reducing or eliminating the impression caused by the light shielding portion 40 .
  • the material of the transparent protective layer 60 may include at least one of silicone glue or epoxy resin glue.
  • the minimum distance L0 between the boundary of the orthographic projection of the transparent protective layer 60 on the support plate 20 and the light-transmitting hole 21 is greater than or equal to 0.5 mm.
  • L0 is greater than or equal to 0.5mm, which can ensure that the transparent protective layer 60 covers all the light-transmitting holes 21 and avoids mold printing problems caused by step differences in the light-transmitting holes 21 . In addition, it can also avoid errors in the production of the transparent protective layer 60 and the inability to completely cover the light-transmitting holes 21, resulting in the inability to solve the mold printing problem.
  • the orthographic projection of the transparent protective layer 60 on the support plate 20 covers part of the support plate 20 , and at least part of the remaining exposed area of the support plate 20 can be used to achieve grounding, which is convenient for discharging static electricity inside the display module 100 and improving the display mode. Yield of group 100.
  • the minimum distance L0 between the boundary of the orthographic projection of the transparent protective layer 60 on the support plate 20 and the light-transmitting hole 21 may be 0.5 mm, 0.8 mm, or 1 mm.
  • the modulus of the transparent protective layer 60 ranges from 8 MPa to 100 MPa.
  • the cured modulus of the transparent protective layer 60 is equal to or close to 8MPa, the cured modulus of the transparent protective layer 60 is relatively small, which can prevent the display module 100 from being damaged due to the large cured modulus of the transparent protective layer 60
  • the problem of secondary molding can also be improved at the same time as the molding problem of the display module 100 caused by the light-transmitting hole 21 .
  • the cured modulus of the transparent protective layer 60 is equal to or close to 100 MPa, the cured modulus of the transparent protective layer 60 is relatively large, which can be more beneficial for the transparent protective layer 60 to improve the molding problem of the display module 100 .
  • the modulus of the transparent protective layer 60 may be 8MPa, 50MPa or 100MPa.
  • the thickness of the transparent protective layer 60 gradually decreases from the center to the edge of the transparent protective layer 60 .
  • the thickness of the transparent protective layer 60 is set to gradually decrease from the center to the edge of the transparent protective layer 60 until it is zero. .
  • the side of the transparent protective layer 60 away from the support plate 20 forms a relatively gentle interface, thereby reducing the problem of molding of the display module 100 .
  • the transparent protective layer 60 can be formed on the support plate 20 by spin coating. It is further ensured that the thickness of the transparent protective layer 60 can be gradually reduced from the center to the edge of the transparent protective layer 60 . However, it is not limited to this and can also be produced in other feasible ways.
  • the side of the transparent protective layer 60 away from the support plate 20 can also have other shapes with gradual thickness, and the shape of the transparent protective layer 60 is not specifically limited.
  • the maximum thickness of the transparent protective layer 60 is d0, and 20 ⁇ m ⁇ d0 ⁇ 50 ⁇ m.
  • the maximum thickness d0 of the transparent protective layer 60 When the maximum thickness d0 of the transparent protective layer 60 is equal to or approaches 20 ⁇ m, the maximum thickness d0 of the transparent protective layer 60 is smaller, which facilitates the thinning of the display module 100; at the same time, the transparent protective layer 60 can also fill light-transmitting holes.
  • the recessed position 41 in the display module 21 improves the mold printing problem of the display module 100 .
  • the maximum thickness d0 of the transparent protective layer 60 is equal to or approaches 50 ⁇ m, the maximum thickness d0 of the transparent protective layer 60 is larger, which can facilitate filling of the recessed position 41 existing in the light-transmitting hole 21 and improve the appearance of the display module 100 printing problem.
  • the maximum thickness d0 of the transparent protective layer 60 may be 20 ⁇ m, 30 ⁇ m, 40 ⁇ m or 50 ⁇ m.
  • the support plate 20 includes a first metal layer 22 .
  • the thickness of the first metal layer 22 is d1, and 80 ⁇ m ⁇ d1 ⁇ 300 ⁇ m.
  • the weight of the support plate 20 can be reduced while meeting the support force requirements of the support plate 20 .
  • the thickness of the first metal layer 22 is equal to or approaches 300 ⁇ m, the supporting force of the supporting plate 20 can be satisfied while avoiding the excessive weight of the supporting plate 20 from affecting the usability of the display module 100 and ensuring user experience.
  • the first metal layer 22 may be made of stainless steel, SUS, copper, titanium alloy or other metal materials, and the thickness of the first metal layer 22 may be 80 ⁇ m, 100 ⁇ m, 200 ⁇ m or 300 ⁇ m.
  • Figure 8 is another cross-sectional structural view at A-A’ in Figure 1.
  • the support plate 20 includes a second metal layer 23 and an auxiliary support layer 24 .
  • the auxiliary support layer 24 is located on the side of the second metal layer 23 close to the flexible display panel 10 .
  • the unit weight of the auxiliary support layer 24 is smaller than that of the second metal layer 23 .
  • the sum of the thickness of the second metal layer 23 and the thickness of the auxiliary support layer 24 is d2, 80 ⁇ m ⁇ d2 ⁇ 300 ⁇ m.
  • the support plate 20 since the support plate 20 includes the second metal layer 23 and the auxiliary support layer 24, the sum of the thickness of the second metal layer 23 and the auxiliary support layer 24 ranges from 80 ⁇ m to 300 ⁇ m. When the sum of the thickness of the second metal layer 23 and the thickness of the auxiliary supporting layer 24 is equal to or approaches 80 ⁇ m, the supporting force of the supporting plate 20 can be satisfied while reducing the weight of the supporting plate 20 . When the sum of the thickness of the second metal layer 23 and the thickness of the auxiliary support layer 24 is equal to or approaches 300 ⁇ m, the support force of the support plate 20 can be satisfied while avoiding excessive weight of the support plate 20 and ensuring user experience. .
  • the unit weight of the auxiliary support layer 24 is set to be less than the unit weight of the second metal layer 23, so that by adjusting the material of the support plate 20, part of the second metal layer can be set while the original thickness of the support plate 20 remains unchanged.
  • the layer 23 is replaced with an auxiliary support layer 24, which effectively reduces the weight of the second metal layer 23 and further reduces the weight of the support plate 20.
  • auxiliary support layer 24 is provided on the side of the second metal layer 23 close to the flexible display panel 10 to facilitate the use of the second metal layer for grounding, to facilitate the extraction of static electricity inside the display module 100, and to improve the yield of the display module 100.
  • the material of the second metal layer 23 may be the same as the material of the first metal layer 22 , and may be stainless steel SUS, copper, titanium alloy or other metal materials.
  • the thickness of the second metal layer 23 may be 30 ⁇ m, 50 ⁇ m or 100 ⁇ m.
  • the thickness of the second metal layer 23 is smaller, which can significantly reduce the weight of the support plate 20 while satisfying the supporting force of the support plate 20 .
  • the support plate 20 may further include an adhesive layer 25 .
  • the adhesive layer 25 is located between the two metal layers 23 and the auxiliary support layer 24 .
  • the adhesive layer 25 can be used to firmly connect the two metal layers 23 and the auxiliary support layer 24 .
  • the adhesive layer 25 may be OCA optical glue (Optical Clear Adhesive).
  • the material of the auxiliary support layer 24 includes carbon fiber. Carbon fiber has high strength and good thermal conductivity. Based on this, the support plate 20 is provided to include the second metal layer 23 and carbon fiber. The heat dissipation performance of the support plate 20 can be improved while meeting the support strength requirements of the support plate 20 and reducing the weight of the support plate 20 .
  • the auxiliary support layer 24 can also be made of other materials, such as rubber.
  • Figure 9 is another cross-sectional structural view at A-A’ in Figure 1.
  • the display module 100 further includes a first adhesive layer 71 , a second adhesive layer 72 and a transparent elastomer layer 80 .
  • the transparent elastomer layer 80 is located between the first adhesive layer 71 and the second adhesive layer 72 , and the first adhesive layer 71 is located on the side of the transparent elastomer layer 80 close to the support plate 20 .
  • the light transmittance of the transparent elastomer layer 80 is greater than or equal to 95%.
  • the display module 100 further includes a transparent elastomer layer 80 .
  • the transparent elastomer layer 80 is located between the support plate 20 and the flexible display panel 10 . Since the transparent elastomer layer 80 has a certain elasticity and a certain recovery performance, it can buffer the pressure during bonding and play a role in recovery after bonding, thereby reducing the problem of molding of the display module 100 .
  • the light transmittance of the transparent elastomer layer 80 is greater than or equal to 95%, it is a highly transparent material, which can help to increase the light transmittance and greatly increase the amount of external light entering the light-transmissive area Q, thereby improving the previous The purpose of setting the camera effect and face recognition accuracy.
  • the transparent elastomer layer 80 is bonded up and down with the first adhesive layer 71 and the second adhesive layer 72 , the first adhesive layer 71 is bonded to the support plate 20 , and the second adhesive layer 72 is bonded to the flexible display panel 10 Carry out bonding.
  • first adhesive layer 71 and the second adhesive layer 72 can both be OCA optical glue, but they are not limited thereto, and other adhesive glues can also be used to achieve the fixing function.
  • the elastic modulus of the transparent elastomer layer 80 ranges from 40 MPa to 500 MPa.
  • the elastic modulus of the transparent elastomer layer 80 When the elastic modulus of the transparent elastomer layer 80 is equal to or approaches 40 MPa, it can satisfy the buffering and shock-absorbing function and effectively improve the mold printing problem of the display module 100 . When the elastic modulus of the transparent elastomer layer 80 is equal to or approaches 500MPa, it can reduce or even eliminate the mold printing problem of the display module 100 and at the same time play a good buffering and shock-absorbing role.
  • the elastic modulus of the transparent elastomer layer 80 may be 40MPa, 100MPa, 200MPa or 400MPa.
  • the elastic modulus of the transparent elastomer layer 80 is 100MPa, compared with other elastic moduli, it has better buffering and recovery properties, buffering the pressure during bonding and restoring after bonding, and improving the display module. 100 stencil problem.
  • the thickness of the transparent elastomer layer 80 is set in the range of 50 ⁇ m to 200 ⁇ m to prevent the transparent elastomer layer 80 from being too thin or too thick and unable to play the role of buffering and recovery.
  • the thickness of the transparent elastomer layer 80 may be 50 ⁇ m, 100 ⁇ m, or 200 ⁇ m.
  • the material of the transparent elastomer layer 80 includes thermoplastic polyurethanes (TPU), thermoplastic elastomers (Thermoplastic Rubbe, TPE) or thermoplastic polyester elastomers (Thermoplastic Polyester). Elastome, TPEE), or a combination of two or more materials.
  • the transparent elastomer layer 80 is made of the above-mentioned material. Compared with the traditional foam material, the elastic modulus of the transparent elastomer layer 80 is relatively large, which can have better buffering and recovery properties, and reduce the molding of the display module 100. question.
  • the material model may be Iwatani ISR-TPS50.
  • Figure 10 is another cross-sectional structural view at A-A’ in Figure 1.
  • the display module 100 further includes a light-gathering layer 90 .
  • the light condensing layer 90 includes a plurality of microlenses 91 arranged at intervals. Among them, the plurality of microlenses 91 are located between the transparent elastomer layer 80 and the first adhesive layer 71 or the second adhesive layer 72.
  • the orthographic projection of the plurality of microlenses 91 on the display surface 11 and the transparent support structure 30 are displayed on the screen. Orthographic projections on surface 11 at least partially overlap.
  • the display module 100 further includes a light-gathering layer 90 .
  • the light-gathering layer 90 can have the effect of condensing light.
  • the orthographic projection of the light-gathering layer 90 on the display surface 11 and the orthographic projection of the transparent support structure 30 on the display surface 11 at least partially overlap, which can improve the position of the transparent support structure 30
  • the light gathering effect at the display module 100 can meet the requirements for image light transmittance in the light-transmitting area Q of the display module 100 and improve the camera quality.
  • 10 illustrates an example in which multiple microlenses 91 are located between the transparent elastomer layer 80 and the second adhesive layer 72 . It can be understood that in other embodiments, the multiple microlenses 91 are located between the transparent elastic layer 80 and the second adhesive layer 72 . between the body layer 80 and the first adhesive layer 71 .
  • the light-concentrating layer 90 is formed on a side of the transparent elastomer layer 80 close to the first adhesive layer 71 or close to the second adhesive layer 72 .
  • the light-gathering layer 90 can have the effect of condensing light.
  • the orthographic projection of the light-gathering layer 90 on the display surface 11 and the orthographic projection of the transparent support structure 30 on the display surface 11 at least partially overlap, which can improve the position of the transparent support structure 30
  • the light gathering effect at the display module 100 can meet the requirements for image light transmittance in the light-transmitting area Q of the display module 100 and improve the camera quality.
  • the microlens 91 is a convex lens.
  • the flat surface 91A of the convex lens is located in the area of the light-gathering layer 90 close to the transparent elastomer layer 80 .
  • the convex surface 91B of the convex lens is located in the area of the light-gathering layer 90 close to the second adhesive layer 72 .
  • the microlens convex lens 91 is used to gather light to meet the image light transmittance requirements of the light-transmitting area Q of the display module 100 and improve the camera quality.
  • the light-gathering layer 90 can use a high-refractive material, such as a material of about 1.7, to form the microlens 91 to better achieve the effect of condensing light.
  • the light-condensing layer 90 can be formed on the side of the transparent elastomer layer 80 close to the first adhesive layer 71 or the second adhesive layer 72 using inkjet printing (IKP).
  • FIG. 11 is a structural diagram of the microlens in Figure 10.
  • a plurality of microlenses 91 are located between the transparent elastomer layer 80 and the second adhesive layer 72 .
  • At least one microlens 91 includes a plurality of optical film layers 911 arranged in a stack.
  • the refractive index of the optical film layer 911 close to the support plate 20 is lower than the refractive index of the optical film layer 911 away from the support plate 20 .
  • the refractive index of the optical film layer 911 closest to the support plate 20 is greater than the refractive index of the transparent elastomer layer 80 .
  • the light-condensing layer 90 is disposed on the side of the transparent elastomer layer 80 away from the support plate 20 , and at least one microlens 91 includes a plurality of optical film layers 911 arranged in a stack.
  • the refractive index of the optical film layer 911 closer to the support plate 20 is smaller, but the refractive index of the optical mode layer 911 with the minimum refractive index is still greater than the refractive index of the transparent elastomer layer 80 , that is, it is arranged adjacent to the transparent elastomer layer 80
  • the refractive index of the optical film layer is greater than the refractive index of the transparent elastomer layer 80 , so that along the direction in which the light-gathering layer 90 points to the transparent elastomer 80 , the refractive index of the film layers in the light-gathering layer 90 pointing to the transparent elastomer 80 decreases sequentially. , to achieve the convergence effect on light.
  • the microlens 91 includes five optical film layers 91 as an example.
  • the refractive index of the transparent elastomer layer 80 is approximately 1.5
  • the refractive index of the optical film layer 911 is approximately 1.7.
  • the optical film layer 911A among the multiple optical film layers 911 of the microlens 91 , the optical film layer 911 closest to the flexible display panel 10 is the optical film layer 911A, and the optical film layer 911A has the largest refractive index.
  • the optical film layer 911B is the optical film layer 911B.
  • the refractive index of the optical film layer 911B is the smallest, and the refractive layer of the optical film layer 911B is larger than the transparent elastomer layer.
  • the refractive index of the optical film layer 911 gradually decreases from 1.7 to 1.5.
  • Figure 12A is a structural diagram of a support plate provided by some embodiments of the present disclosure.
  • Figure 12B is a structural diagram of another support plate provided by some embodiments of the present disclosure.
  • Figure 12C is another structural diagram of a support plate provided by some embodiments of the present disclosure. Structural view of the support plate.
  • Figure 12D is a structural view of another support plate provided by some embodiments of the present disclosure.
  • the support plate 20 includes a first support part 20A, a second support part 20B and a bendable part 20C.
  • the bendable portion 20C is located between the first support portion 20A and the second support portion 20B.
  • the bendable portion 20C has a plurality of grooves W.
  • the light-transmitting hole 21 is located in the first supporting part 20A and/or the second supporting part 20B.
  • the bendable portion 20C is used to realize a foldable display module.
  • the bendable portion 20C has a plurality of grooves W to facilitate bending of the support plate 20 .
  • the number of light-transmitting holes 21 on the support plate 20 can be one or more, and can be set according to actual needs.
  • the support plate 20 only includes one light-transmitting hole 21
  • the light-transmitting hole 21 may be located on the first supporting part 20A or the second supporting part 20B.
  • the support plate 20 includes a plurality of light-transmitting holes 21
  • the light-transmitting holes 21 may be located on the first supporting part 20A or the second supporting part 20B.
  • multiple light-transmitting holes 21 are dispersedly provided on the first support part 20A and the second support part 20B.
  • the shape of the orthographic projection of the light-transmitting hole 21 on the plane of the support plate 20 may be circular, elliptical, square, star-shaped or polygonal, and the shape of the light-transmit
  • FIG. 12A takes the example that the support plate 20 includes a light-transmitting hole 21, and the shape of the light-transmitting hole 21 is an ellipse.
  • FIG. 12B takes the example that the support plate 20 includes a light-transmitting hole 21 and the shape of the light-transmitting hole 21 is a hexagon.
  • FIG. 12C takes the example that the support plate 20 includes a light-transmitting hole 21 and the shape of the light-transmitting hole 21 is a six-pointed star.
  • FIG. 12A takes the example that the support plate 20 includes a light-transmitting hole 21, and the shape of the light-transmitting hole 21 is an ellipse.
  • FIG. 12B takes the example that the support plate 20 includes a light-transmitting hole 21 and the shape of the light-transmitting hole 21 is a hexagon.
  • FIG. 12C takes the example that the support plate 20 includes a light-transmitting hole 21 and the shape of the light-transmitting hole 21 is a six
  • the support plate 20 includes two light-transmitting holes 21 , the shapes of the light-transmitting holes 21 are circular, and the two light-transmitting holes 21 are located at the first supporting part 20A and the second supporting part 20B respectively. .
  • the above-mentioned support plate 20 only takes a single folding structure as an example, that is, the support plate 20 is only folded once, and then the exposed area of the corresponding display module 100 is doubled.
  • the support plate 20 can also be provided in a multiple folding structure, so that the display module 100 can be subsequently folded into a structure with a smaller exposed area.
  • the multiple folding structure includes two or more folding parts, and there is no specific limit on the specific positions of the folding parts.
  • Figure 13 is another cross-sectional structural view at A-A’ in Figure 1.
  • the display module 100 further includes: a cover 201 , a polarizer 202 and a back film 203 .
  • the back film 203 is located between the flexible display panel 10 and the support plate 20 , and the back film 203 can play a certain role in supporting the flexible display panel 10 .
  • the back film 203 can be bonded to the flexible display panel 10 and the support plate 20 through an adhesive layer.
  • the back film 203 can be fixedly bonded to the support plate 20 through the second adhesive layer 72 .
  • the cover 201 is located on the side of the flexible display panel 10 away from the support plate 20 .
  • the cover 201 can be used to protect the flexible display panel 10 and prevent the flexible display panel 10 from being scratched.
  • the cover 201 is a flexible cover.
  • the material of the cover plate 201 includes at least one of transparent polyimide and ultra-thin glass.
  • the polarizer 202 is located between the cover 201 and the flexible display panel 10 .
  • the polarizer 202 may be a circular polarizer.
  • the polarizer 202 can reduce external light emission and prevent the display module 100 from producing a dazzling effect.
  • the polarizer 202 includes an opening K penetrating the polarizer 202 .
  • the orthographic projection of the opening K on the plane of the support plate 20 at least partially overlaps the light-transmitting hole 21 , thereby improving the influence of the polarizer 202 on the light transmittance at the position of the light-transmitting hole 21 .
  • the orthographic projection of the opening K on the plane of the support plate 20 completely covers the light-transmitting hole 21, the influence of the polarizer 202 on the light transmittance at the position of the light-transmitting hole 21 can be prevented.
  • the front projection and the light-transmitting hole 21 at least partially overlap, the improvement effect at the position of the light-transmitting hole 21 is better.
  • the boundary of the opening K in the orthographic projection of the plane where the support plate 20 is located coincides with the boundary of the light-transmitting hole 21 .
  • the polarizer 202 will not easily affect the light transmittance at the position of the light-transmitting hole 21 , and at the same time, the area of the polarizer 202 except the opening K will not be too small, thereby ensuring that the polarizer 202 does not transmit light inside the display surface. Anti-reflection effect in the area outside the aperture 21. It should be noted that due to the existence of certain uncontrollable errors, the above-mentioned "coincidence" includes absolute coincidence and approximate coincidence.
  • the floating range of the error distance between the boundary of the orthographic projection of the opening K on the plane of the support plate 20 and the boundary of the light-transmitting hole 21 does not exceed the error threshold, and the two surfaces can also be considered to be relatively "coinciding".
  • the error threshold may range from 0 ⁇ m to 0.5 ⁇ m, for example.
  • both sides of the polarizer 202 can be bonded to the cover plate 201 and the flexible display panel 10 through an adhesive layer 204 respectively.
  • the material of the above-mentioned glue layer includes heat-fixing resin glue or photo-curable resin.
  • the material of the glue layer is OCA optical glue (Optical Clear Adhesive).
  • Figure 14 is another cross-sectional structural view at A-A’ in Figure 1.
  • the display module 100 includes a cover 201 and a back film 203.
  • the display module 100 is based on the COE structure (Color Film On Encapsulation), that is, the color film part is directly made above the encapsulation layer).
  • the color filter layer 205 is located between the flexible display panel 10 and the cover plate 201 .
  • the color filter layer 205 includes a separation pattern 2051 and a plurality of color filter portions 2052.
  • the separation pattern 2051 is used to separate the plurality of color filter portions 2052.
  • the plurality of color filter portions 2052 include a red color filter portion, a green color filter portion, and a blue color filter portion.
  • the separation pattern 2051 located in the area other than the light-transmitting area Q in the display surface is made of black light-absorbing material.
  • the separation pattern 2051 located in the light-transmitting area Q is made of transparent material, which can easily increase the light transmittance in the light-transmitting area Q to meet the requirements of under-screen imaging.
  • the display module 100 may also include an over coating layer 206 (Over Coating, OC).
  • the over coating layer 206 is disposed between the color filter layer 205 and the cover plate 201 to cover the color filter layer 205.
  • the display module 100 shown in FIG. 14 does not need to use a polarizer, which is beneficial to reducing the cost of the display module 100 .
  • the screen power consumption can be lower at the same display brightness.
  • the thickness of the screen can be significantly reduced, which is beneficial to extending the life of the flexible display panel 10 .
  • each color filter portion 2052 is equal for illustration. In other embodiments, the sizes of the color filter portions 2052 of different colors can be set differently. For example, the size of the blue color film part is set corresponding to the size of the above-mentioned blue light-emitting device, the size of the green color film part is set corresponding to the size of the above-mentioned green light-emitting device, and the size of the red color film part is set corresponding to the size of the above-mentioned red light-emitting device.
  • the size of the color filter part 2052 in the light-transmitting area Q may be smaller than the size of the color filter part 2052 in the area other than the light-transmitting area Q in the display surface; and, a plurality of color filters in the light-transmitting area Q
  • the density of the color filter portions 2052 may be smaller than the density of the plurality of color filter portions 2052 in areas other than the light-transmitting area Q in the display surface.
  • Figure 15 is a flow structure diagram of a display module provided by some embodiments of the present disclosure.
  • some embodiments of the present disclosure provide a manufacturing method of a display module, including: S1 to S5.
  • a support plate 20 is provided, an opening is designed on the support plate 20, and a light-transmitting hole 21 penetrating the support plate 20 is formed on the support plate 20.
  • the light-transmitting hole 21 can be made on the support plate by laser cutting, etching, or other methods.
  • the flexible display panel 10 includes a display surface 11, and the display surface 11 includes a light-transmitting area Q.
  • a transparent support structure 30 is filled in the light-transmitting hole 21 .
  • the transparent support structure 30 can be combined with the support plate 20 to support the flexible display panel 10 , thereby reducing or eliminating the position of the light-transmitting hole 21 .
  • choosing a transparent material to form the transparent support structure 30 can also meet the light transmittance requirements of the light-transmitting area Q and improve the imaging effect.
  • at least part of the side wall 211 is provided with a light-shielding portion 40.
  • the light-shielding portion 40 can block the light emitted by the light-emitting device O inside the flexible display panel 10, preventing the light emitted by the light-emitting device O from entering the optical device G, thereby avoiding light-transmitting holes.
  • the light leakage problem at position 21 improves the imaging quality of optical device G.
  • a transparent protective layer 60 can be spin-coated on the side of the support plate 20 away from the flexible display panel 10 to facilitate the formation of a gentle transparent protection layer. Layer 60 is used to reduce or eliminate the problem of molding of the backlight module 100 .
  • a transparent elastomer layer 80 is provided, and first adhesive layers 71 are formed on the upper and lower sides of the transparent elastomer layer 80. and a second adhesive layer 72.
  • the first adhesive layer 71 is used to bond the transparent elastomer layer 80 to the first side of the support plate 20 .
  • the first side is the side of the support plate 20 in the display module 100 close to the flexible display panel 10 . Since the transparent elastomer layer 80 has a certain elasticity and a certain recovery performance, it can buffer the pressure during bonding and play a role in recovery after bonding, thereby reducing the problem of molding of the display module 100 .
  • the transparent elastomer layer 80 is greater than or equal to 95%, it is a highly transparent material, which can help to increase the light transmittance and greatly increase the amount of external light entering the light-transmissive area Q, thereby improving the previous The purpose of setting the camera effect and face recognition accuracy.
  • Figure 16 is a cross-sectional structural view of a display device provided by some embodiments of the present disclosure.
  • some embodiments of the present disclosure provide a display device 200. See Figure 16.
  • the display device 200 includes: the display module 100 and the optical device G according to any of the above embodiments.
  • the optical device G is located on a side of the support plate 20 away from the flexible display panel 10 , and the orthographic projection of the optical device G on the support plate 20 at least partially overlaps with the light-transmitting hole 21 .
  • the supporting plate 20 includes the light-transmitting hole 21 , the orthographic projection of the optical device G on the supporting plate 20 at least partially overlaps with the light-transmitting hole 21 .
  • the light-transmitting hole 21 can meet the light transmittance requirement of the optical device G to achieve a full-screen design.
  • the transparent support structure 30 is filled in the light-transmitting hole 21 , and the orthographic projection of the transparent support structure 30 on the display surface 11 at least partially overlaps with the light-transmitting area Q.
  • the transparent support structure 30 is made of transparent materials, which can improve the influence of the transparent support structure 30 on the light transmittance at the position of the light-transmitting hole 21, meet the requirements of the optical device G for the light transmittance, and improve the imaging effect.
  • the transparent support structure 30 can also be combined with the support plate 20 to support the flexible display panel 10, thereby reducing or eliminating the mold problem caused by the lack of force at the position of the light-transmitting hole 21.
  • a light-shielding portion 40 is provided on at least part of the side wall 211 of the light-transmitting hole 21 . The light-shielding portion 40 can block the light emitted by the light-emitting device O inside the flexible display panel 10 and prevent the light emitted by the light-emitting device O from entering the optical device G. , thereby avoiding the light leakage problem at the position of the light-transmitting hole 21 and improving the imaging quality of the optical device G.
  • the optical device G may include a camera module, a fingerprint module, a facial recognition sensor, etc.
  • optical device G is a camera module, and the camera module includes a camera. Setting the orthographic projection of the optical device G on the support plate 20 to at least partially overlap the light-transmitting hole 21 can facilitate improving the camera's imaging effect and face recognition accuracy.
  • the camera can be fixedly connected to the support plate 20 using the third adhesive layer M. This disclosure does not limit the material of the third adhesive layer M, as long as it can fix the camera and will not affect the imaging of the camera.
  • the display device 200 provided in some embodiments of the present disclosure can be used as any product or component with a display function such as a television, a mobile phone, a tablet, a notebook computer, a digital photo frame, or a navigator.
  • a display function such as a television, a mobile phone, a tablet, a notebook computer, a digital photo frame, or a navigator.
  • the use of device 200 is not limited.
  • the above-mentioned display device 200 may be any device that displays images, whether moving (eg, video) or fixed (eg, still images), and whether text or text. More specifically, it is contemplated that the embodiments may be implemented in or in association with a variety of electronic devices, such as, but not limited to, mobile phones, wireless devices, personal data assistants (PDAs) , handheld or portable computers, GPS receivers/navigators, cameras, MP4 video players, camcorders, game consoles, watches, clocks, calculators, television monitors, flat panel displays, computer monitors, automotive displays (e.g., odometer display, etc.), navigator, cockpit controller and/or display, camera view display (e.g. display of a rear view camera in a vehicle), electronic photographs, electronic billboards or signs, projectors, building structures, packaging and aesthetic structure (for example, for the display of an image of a piece of jewelry), etc.
  • PDAs personal data assistants
  • GPS receivers/navigators cameras

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Abstract

公开一种显示模组,包括柔性显示面板、支撑板、透明支撑结构和遮光部。柔性显示面板包括显示面,显示面包含透光区域。支撑板位于柔性显示面板背离显示面的一侧;支撑板上具有透光孔。透明支撑结构填充于透光孔内;透明支撑结构在显示面上的正投影与透光区域至少部分交叠。遮光部位于透光孔的至少部分侧壁上。

Description

显示模组及显示装置 技术领域
本公开涉及显示技术领域,尤其涉及一种显示模组及显示装置。
背景技术
随着显示行业的快速发展,曲面、折叠、异形、卷曲等各式各样的柔性显示面板在市场上变得炙手可热。柔性显示面板一般以柔性材料为基体,而且需在柔性显示面板的背部设置支撑件,以实现对柔性显示面板的支撑。
但是,由于支撑件一般选用不透光的材质,无法满足摄像头对光线的需求,极大限制了屏下摄像头的使用。
发明内容
一方面,提供一种显示模组。所述显示模组包括柔性显示面板、支撑板、透明支撑结构和遮光部。所述柔性显示面板包括显示面,所述显示面包含透光区域。所述支撑板位于所述柔性显示面板背离所述显示面的一侧;所述支撑板上具有透光孔。所述透明支撑结构填充于所述透光孔内;所述透明支撑结构在所述显示面上的正投影与所述透光区域至少部分交叠。所述遮光部位于所述透光孔的至少部分侧壁上。
在一些实施例中,所述显示模组还包括降反增透层。降反增透层位于所述透光孔内。所述降反增透层与所述透明支撑结构层叠设置。
在一些实施例中,所述降反增透层位于所述透明支撑结构靠近所述柔性显示面板的一侧。
在一些实施例中,所述降反增透层包括至少两层第一折射层和至少一层第二折射层,第二折射层位于相邻两层所述第一折射层之间。其中,所述第一折射层的折射率小于所述第二折射层的折射率。
在一些实施例中,所述显示模组还包括透明保护层。透明保护层位于所述支撑板背离所述柔性显示面板的一侧。所述透明保护层在所述支撑板上的正投影覆盖所述透光孔。
在一些实施例中,所述透明保护层在所述支撑板上的正投影的边界与所述透光孔之间的最小间距大于或等于0.5mm。
在一些实施例中,所述透明保护层的模量的取值范围为8MPa~100MPa。
在一些实施例中,所述透明保护层的厚度,自所述透明保护层的中心至边缘,逐渐减小。
在一些实施例中,所述透明保护层的最大厚度为d0,20μm≤d0≤50μm。
在一些实施例中,所述支撑板包括第一金属层。所述第一金属层的厚度为d1,80μm≤d1≤300μm。
在一些实施例中,所述支撑板包括第二金属层和辅助支撑层。所述辅助支撑层位于所述第二金属层靠近所述柔性显示面板的一侧。所述辅助支撑层的单位重量小于所述第二金属层的单位重量。所述第二金属层的厚度和所述辅助支撑层的厚度之和为d2,80μm≤d2≤300μm。
在一些实施例中,所述辅助支撑层的材料包括碳纤维。
在一些实施例中,所述显示模组还包括层叠设置的第一粘接层、第二粘接层和透明弹性体层。所述透明弹性体层位于所述第一粘接层和所述第二粘接层之间,且所述第一粘接层位于所述透明弹性体层靠近所述支撑板的一侧。其中,所述透明弹性体层的透光率大于或等于95%。
在一些实施例中,所述透明弹性体层弹性模量的取值范围为40MPa~500MPa。
在一些实施例中,所述透明弹性体层的材料包括热塑性聚氨酯弹性体、热塑性弹性体或热塑性聚酯弹性体中的至少一种。
在一些实施例中,所述显示模组还包括聚光层。聚光层包括多个间隔设置的微透镜。其中,多个微透镜位于所述透明弹性体层与所述第一粘接层或所述第二粘接层之间。所述多个微透镜在所述显示面上的正投影和所述透明支撑结构在所述显示面上的正投影至少部分交叠。
在一些实施例中,所述多个微透镜位于所述透明弹性体层与所述第二粘接层之间。至少一个所述微透镜包括多层层叠设置的光学膜层。相邻两个所述光学膜层中,靠近所述支撑板的光学膜层的折射率,低于背离所述支撑板的光学膜层的折射率;以及,所述多层光学膜层中,最靠近所述支撑板的光学膜层的折射率大于所述透明弹性体层的折射率。
在一些实施例中,所述透明支撑结构的材料包括超薄玻璃、聚对苯二甲酸乙二醇酯、聚甲基丙烯酸甲酯或聚碳酸酯中的至少一种。
在一些实施例中,在沿所述透明支撑结构指向所述支撑板的方向上,所述遮光部的尺寸为d3,0.1μm≤d3≤1μm。
在一些实施例中,所述支撑板包括第一支撑部、第二支撑部以及位于所述第一支撑部和所述第二支撑部之间的可弯折部分。所述可弯折部分具有多个槽;以及,所述透光孔位于所述第一支撑部和/或所述第二支撑部。
另一方面,提供一种显示装置。所述显示装置包括:如上述任一实施例所述的显示模组和光学器件。所述光学器件位于所述支撑板背离所述柔性显 示面板的一侧,且所述光学器件在所述支撑板上的正投影与所述透光孔至少部分交叠。
附图说明
为了更清楚地说明本公开中的技术方案,下面将对本公开一些实施例中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本公开的一些实施例的附图,对于本领域普通技术人员来讲,还可以根据这些附图获得其他的附图。此外,以下描述中的附图可以视作示意图,并非对本公开实施例所涉及的产品的实际尺寸、方法的实际流程、信号的实际时序等的限制。
图1为本公开一些实施例提供的一种显示模组的结构图;
图2为图1中A-A’处的一种截面结构图;
图3为本公开一些实施例提供的一种柔性显示面板的结构图;
图4为图1中A-A’处的又一种截面结构图;
图5为图1中A-A’处的又一种截面结构图;
图6为图1中A-A’处的又一种截面结构图;
图7为图1中A-A’处的又一种截面结构图;
图8为图1中A-A’处的又一种截面结构图;
图9为图1中A-A’处的又一种截面结构图;
图10为图1中A-A’处的又一种截面结构图;
图11为图10中微透镜的一种结构图;
图12A为本公开一些实施例提供的一种支撑板的结构图;
图12B为本公开一些实施例提供的又一种支撑板的结构图;
图12C为本公开一些实施例提供的又一种支撑板的结构图;
图12D为本公开一些实施例提供的又一种支撑板的结构图;
图13为图1中A-A’处的又一种截面结构图;
图14为图1中A-A’处的又一种截面结构图;
图15为本公开一些实施例提供的一种显示模组的流程结构图;
图16为本公开一些实施例提供的一种显示装置的截面结构图。
具体实施方式
下面将结合附图,对本公开一些实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本公开一部分实施例,而不是全部的实施例。基于本公开所提供的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本公开保护的范围。
除非上下文另有要求,否则,在整个说明书和权利要求书中,术语“包括(comprise)”及其其他形式例如第三人称单数形式“包括(comprises)”和现在分词形式“包括(comprising)”被解释为开放、包含的意思,即为“包含,但不限于”。在说明书的描述中,术语“一个实施例(one embodiment)”、“一些实施例(some embodiments)”、“示例性实施例(exemplary embodiments)”、“示例(example)”、“特定示例(specific example)”或“一些示例(some examples)”等旨在表明与该实施例或示例相关的特定特征、结构、材料或特性包括在本公开的至少一个实施例或示例中。上述术语的示意性表示不一定是指同一实施例或示例。此外,所述的特定特征、结构、材料或特点可以以任何适当方式包括在任何一个或多个实施例或示例中。
以下,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本公开实施例的描述中,除非另有说明,“多个”的含义是两个或两个以上。
“A、B和C中的至少一个”与“A、B或C中的至少一个”具有相同含义,均包括以下A、B和C的组合:仅A,仅B,仅C,A和B的组合,A和C的组合,B和C的组合,及A、B和C的组合。
“A和/或B”,包括以下三种组合:仅A,仅B,及A和B的组合。
另外,“基于”的使用意味着开放和包容性,因为“基于”一个或多个所述条件或值的过程、步骤、计算或其他动作在实践中可以基于额外条件或超出所述的值。
如本文所使用的那样,“大致”或“近似”包括所阐述的值以及处于特定值的可接受偏差范围内的平均值,其中所述可接受偏差范围如由本领域普通技术人员考虑到正在讨论的测量以及与特定量的测量相关的误差(即,测量系统的局限性)所确定。
应当理解的是,当层或元件被称为在另一层或基板上时,可以是该层或元件直接在另一层或基板上,或者也可以是该层或元件与另一层或基板之间存在中间层。
本文参照作为理想化示例性附图的剖视图和/或平面图描述了示例性实施方式。在附图中,为了清楚,放大了层和区域的厚度。因此,可设想到由于例如制造技术和/或公差引起的相对于附图的形状的变动。因此,示例性实施方式不应解释为局限于本文示出的区域的形状,而是包括因例如制造而引起的形状偏差。例如,示为矩形的蚀刻区域通常将具有弯曲的特征。因此,附 图中所示的区域本质上是示意性的,且它们的形状并非旨在示出设备的区域的实际形状,并且并非旨在限制示例性实施方式的范围。
图1为本公开一些实施例提供的一种显示模组的结构图,图2为图1中A-A’处的一种截面结构图。参阅图1和图2所示,本公开一些实施例提供了一种显示模组100,显示模组100包括柔性显示面板10、支撑板20、透明支撑结构30和遮光部40。
如图1所示,柔性显示面板10包括显示面11,显示面11包含透光区域Q。此处,透光区域Q为柔性显示面板10的显示面11的至少部分区域。图1以透光区域Q位于显示面11远离显示模组100的下边框的位置处为例进行示意。可以理解的是,在另一些实施例中,透光区域Q也可以位于显示面11靠近显示模组100的下边框的位置处。
示例性的,柔性显示面板10包括有机电致发光显示面板(Organic Light-Emitting Diode,OLED)、量子点电致发光显示面板(Quantum Dot Light-Emitting Diode,QLED)或微型发光二极管显示面板(Micro Light-Emitting Diode,Micro-LED)。
图3为本公开一些实施例提供的一种柔性显示面板的结构图。参阅图3所示,柔性显示面板10包括像素驱动电路P和多个发光器件O。通过像素驱动电路P驱动发光器件O发光,可以使得柔性显示面板10进行画面显示。可以理解的是,上述透光区域Q在摄像阶段时进行摄像拍摄,在显示阶段时,与显示面11其他区域同步进行画面显示。
其中,图3以显示面11上除透光区域Q以外其他位置处的像素驱动电路P和多个发光器件O为例进行示意。对于透光区域Q中的像素驱动电路P与发光器件Q的连接驱动方式相同,透光区域Q中的像素密度(Pixels Per Inch,PPI)相对于显示面11其他位置处的像素密度低,以便满足屏下摄像头对光线透过率的需求。
示例性的,透光区域Q可以为摄像区域或者指纹识别区等,下文仅以透光区域Q为摄像区域为例,指纹识别同样适用。
如图2所示,支撑板20位于柔性显示面板10背离显示面11的一侧,支撑板20上具有透光孔21。支撑板20可以起到支撑柔性显示面板10的作用,并且图像光线可以通过透光孔21射入至屏下摄像头,实现显示模组10全面屏设计。
其中,图2以透光区域Q在支撑板20所在平面的正投影的边界与透光孔21的边界重叠为例进行示意。可以理解的是,在另一些实施例中,透光区域 Q在支撑板20所在平面的正投影可以覆盖透光孔21,或者与部分透光孔21交叠。
在上述一些实现方式中,为了满足屏下摄像头的需求,在无法透光的支撑板20上设置透光孔30,但是由于柔性显示面板10各个膜层强度不够,会导致在支撑板20和柔性显示面板10贴合时,透光孔21对应位置处柔性显示面板10的出光面11会形成凹陷,会导致透光孔21对应的柔性显示面板10的出光面11可以清晰观察到模印、压痕等外观不良的问题。
而本公开一些实施例提供的一种显示模组100,继续参阅图2所示,在透光孔21内填充透明支撑结构30,透明支撑结构30在显示面11上的正投影与透光区域Q至少部分交叠。透明支撑结构30可以与支撑板20结合,起到支撑柔性显示面板10的作用,从而可以降低或者消除透光孔21位置处不受力导致的显示模组100的模印问题。
其中,图2以透明支撑结构30靠近柔性显示面板10的一侧表面与支撑板20靠近柔性显示面板10的一侧表面平齐,且透明支撑结构30背离柔性显示面板10的一侧表面与支撑板20背离柔性显示面板10的一侧表面平齐为例进行示意,以便进一步使得透明支撑结构30完全填充透过孔21,从而可以降低或者消除透光孔21位置处不受力导致的显示模组100的模印问题。
可以理解的是,在另一些实施例中,透明支撑结构30靠近柔性显示面板10的一侧表面与支撑板20靠近柔性显示面板10的一侧表面平齐,且透明支撑结构30背离柔性显示面板10的一侧表面位于透光孔21;或者,透明支撑结构21靠近柔性显示面板10的一侧表面位于透光孔21,且透明支撑结构30背离柔性显示面板10的一侧表面与支撑板20背离柔性显示面板10的一侧表面平齐;又或者,透明支撑结构21靠近柔性显示面板10的一侧表面、和透明支撑结构30背离柔性显示面板10的一侧表面,均位于透光孔21。
由于存在一定的不可控的误差,上述“平齐”包括透明支撑结构30的某一侧表面与支撑板20的某一侧表面绝对平齐和近似平齐。也即透明支撑结构30的某一侧表面与支撑板20的某一侧表面之间的段差的浮动范围不超过误差阈值,也可以认为两个表面相对“平齐”。其中,误差阈值例如可以为0.5mm。
图4为图1中A-A’处的又一种截面结构图。参阅图4所示,柔性显示面板10包括衬底基板00、驱动电路层01、发光器件层02、像素界定层06和封装层07。利用驱动电路层01驱动发光器件层02中的发光器件发光,进行显示。发光器件层02包括多个位于透光区域Q的发光器件O’,和位于显示面除透光区域Q以外的区域内的发光器件O。发光器件O和发光器件O’均包括 阳极层03、阴极层05,以及位于阳极层03和阴极层05之间的发光层04。
示例性的,发光器件O’的尺寸小于发光器件O的尺寸。由此可以提升透光区域Q的光线透过率。
示例性的,多个发光器件O’之间的密度需小于多个发光器件O之间的密度。由此可以提升透光区域Q的光线透过率。
其中,图4中以多个发光器件O的尺寸相同为例进行示意。需要说明的是,在另一些实施例中,当发光器件O包括红色发光器件、绿色发光器件和蓝色发光器件时。由于蓝色发光器件中的发光层04的发光效率最低,其次红色发光器件中的发光层04,绿色发光器件中的发光层04的发光效率最高。进而可以设置蓝色发光器件的尺寸可以最大、其次红色发光器件,绿色发光器件的尺寸最小,有利于改善显示模组100色偏的问题。透光区域Q位置处的发光器件O’同样适用上述理论,在此不再赘述。
继续参阅图4所示,遮光部40位于透光孔21的至少部分侧壁211上。发光器件O发射的光线L1会射入至透光孔21内的遮光部40,并且发光器件O’发射的光线L2也可能会射入至透光孔21内的遮光部40,遮光部40可以吸收光线L1和光线L2。由此可以改善支撑板20上透光孔21位置处的漏光问题。此外,由于发光器件O’中的阳极层03位于发光层04和透光孔21之间,且阳极层03一般选用金属材质。对于光学器件O’垂直向下发射的光线L3,会被其对应的阳极层03反射出显示模组100。由此,可以利用阳极层03防止光学器件O’发射的光线L3对成像效果的影响。
其中,遮光部40位于透光孔21的至少部分侧壁211上。遮光部40可以为闭环结构,围绕全部透明支撑结构30设置;或者,遮光部40也可以为非闭环结构,围绕部分透明支撑结构30设置。而对于上述遮光部40的结构均可以起到改善透光孔21位置处漏光问题。
示例性的,遮光部40可以为遮光胶。一方面,遮光胶可以起到改善透光孔21位置处漏光问题;另一方面,遮光胶还可以用于固定透明支撑结构30和支撑板20,避免透明支撑结构30相对于支撑板20脱落,有利于提高显示模组100的良率。
示例性的,遮光胶可以为环氧树脂系、硅胶系、甲基丙烯酸甲酯系等至少一种粘结材料。可以同时实现遮光以及固定透明支撑结构30的作用。
综上所述,本公开一些实施例提供的显示模组100,在透光孔21内填充透明支撑结构30,透明支撑结构30既不会对透光孔21的光线透过率有较大的影响,满足屏下摄像头的正常需求;还可以与支撑板20结合,起到支撑柔 性显示面板10的作用,从而可以降低或者消除透光孔21位置处不受力导致的模印问题。此外,在透光孔21的至少部分侧壁211设置遮光部40,遮光部40可以遮挡柔性显示面板10内部的发光器件O的发射的光线射入至透光孔21内,改善支撑板20上透光孔21位置处的漏光问题。
在一些实施例中,继续参阅图2所示,透明支撑结构30的材料包括超薄玻璃、聚对苯二甲酸乙二醇酯、聚甲基丙烯酸甲酯或聚碳酸酯中的至少一种。
示例性的,透明支撑结构30的材料可以为超薄玻璃、聚对苯二甲酸乙二醇酯、聚甲基丙烯酸甲酯或聚碳酸酯中的任意一种,或者任意两个或者两个以上组合的材料。将其填充至透光孔21内,既可以起到支撑柔性显示面板100避免模印的效果,还可以有效提高透光孔21内的光线透过率。
在一些实施例中,继续参阅图2所示,在沿透明支撑结构30指向支撑板20的方向上,遮光部40尺寸为d3,0.1mm≤d3≤1mm。
当遮光部40的尺寸等于或趋近于0.1mm时,遮光部40比较窄,此时,既可以通过遮光部40来固定透明支撑结构30,利用遮光部40吸收柔性显示面板10内产生的干扰光线,还可以减少遮光部40对需要穿过透光孔21的图像光线的遮挡,提高图像光线的透过率,提高成像质量;当遮光部40的尺寸等于或趋近于1mm时,遮光部40比较宽,此时,既能够允许足够的图像光线穿过透光孔,且可以更有效的吸收干扰光线以及粘接固定透明支撑结构30,防止透明支撑结构30相对于支撑板20脱落,从而提高显示模组100的良率。
示例性的,遮光部40在横方向上的尺寸可以为0.1mm、0.3mm、0.5mm或者1mm。
图5为图1中A-A’处的又一种截面结构图。在一些实施例中,参阅图5,以及结合图1所示,显示模组100还包括降反增透层50。降反增透层50位于透光孔21内。降反增透层50与透明支撑结构30层叠设置。
在一些实施例中,由于在透光孔21内设置与透明支撑结构30相对设置的降反增透层50。可以利用降反增透层50增加透光孔21内的光线透过率,从而大大提高进入透光区域Q的外界光光量,达到提高前置摄像效果及人脸识别精度的目的。
示例性的,图5以降反增透层50位于透明支撑结构30靠近柔性显示面板10的一侧为例进行示意。可以理解的是,在另外一些实施例中,降反增透层50可以夹设于两层透明支撑结构30之间,或者降反增透层50位于透明支撑结构30背离柔性显示面板10的一侧。其中,图5所示的降反增透层50与透明支撑结构30的相对位置关系,可以相较于其他实施例中降反增透层50 与透明支撑结构30的相对位置关系,更进一步增加透光孔21内的光线透过率。
图6为图1中A-A’处的又一种截面结构图。在一些实施例中,参阅图6,以及结合图1所示,降反增透层50包括至少两层第一折射层51和至少一层第二折射层52。第二折射层52位于相邻两个第一折射层51之间。其中,第一折射层51的折射率小于第二折射层52的折射率。
示例性的,降反增透层50包括交替层叠设置的第一折射层51和第二折射层52。降反增透层50多个膜层中最靠近柔性显示面板10和支撑板20的膜层均为第一折射层51,也即降反增透层50上下最外侧的膜层均为第一折射层51。基于此结构,设置第一折射层51的折射率小于第二折射层52的折射率,且靠近透明支撑结构30的第一折射层51的折射率小于透明支撑结构30。当外界光入射至降反增透层50时,会有一部分在膜的两个面上反射回去,反射回去的光(两列波),会进行干涉。而设置降反增透层50中任意一层的第一折射层51/第二折射层52的厚度为纳米级,可见光波长的1/4,两列反射回去的光波就会相干相消,从而达到增透的效果,大大提高进入透光区域Q的外界光光量,从而达到提高前置摄像效果及人脸识别精度的目的。
其中,图6以降反增透层50包括两层第一折射层51和一层第二折射层52为例进行示意。可以理解的是,在另一些实施例中,降反增透层50可以为3层、5层、7层以及更多层结构。
示例性的,第一折射层51可以为氧化硅,第二折射层52可以为氧化铌。
示例性的,降反增透层50可以采用气相沉积的方式设置在透明支撑结构30上。例如,当降反增透层50包括两层第一折射层51和一层第二折射层52时,第一折射层51和一层第二折射层52可以分别采用气相沉积的方式依次设置在透明支撑结构30上。
图7为图1中A-A’处的又一种截面结构图。在一些实施例中,参阅图7,以及结合图1所示,显示模组100还包括透明保护层60。透明保护层60位于支撑板20背离柔性显示面板10的一侧。透明保护层60在支撑板20上的正投影覆盖透光孔21。
在一些实施例中,由于在透光孔21背离柔性显示面板10的一侧形成透明保护层60,且使得透明保护层60背离支撑板20一侧的表面为一个较为平缓的表面。进而可以利用透明保护层60填充透光孔21内膜层结构之间段差形成的凹陷位置41,从而改善由于凹陷位置41导致的显示模组100的模印问题。
示例性的,由于透光孔21内部设置的遮光部40后续固化后会收缩,在遮光部40对应位置处形成凹陷位置41,而该凹陷位置41处也无法受力,进而后续贴合柔性显示面板10时也会产生模印问题。基于此,可以在支撑板20背离柔性显示面板10的一侧,且在透光孔21的位置处设置透明保护层60,透明保护层60靠近支撑板20一侧的表面可以填补凹陷位置41,且透明保护层60背离支撑板20一侧的表面为一个较为平缓的表面,从而可以实现降低或消除遮光部40导致的模印的效果。
示例性的,透明保护层60的材料可以包括硅胶或者环氧树脂胶水中至少一种。
在一些实施例中,继续图7所示,透明保护层60在支撑板20上的正投影的边界与透光孔21之间的最小间距L0大于或等于0.5mm。
L0大于或等于0.5mm,可以保证透明保护层60覆盖全部透光孔21,避免透光孔21内存在段差导致模印问题。以及还可以避免在制作透明保护层60时存在误差而无法全部覆盖透光孔21,导致无法解决模印问题。其中,透明保护层60在支撑板20上的正投影覆盖部分支撑板20,剩余暴露出的支撑板20的至少部分区域可以用于实现接地,便于导出显示模组100内部的静电,提高显示模组100的良率。
示例性的,透明保护层60在支撑板20上的正投影的边界与透光孔21之间的最小间距L0可以为0.5mm、0.8mm或者1mm等。
在一些实施例中,继续参阅图7所示,透明保护层60的模量的取值范围为8MPa~100MPa。
当透明保护层60固化后的模量等于或趋近于8MPa时,透明保护层60固化后的模量相对较小,可以防止由于透明保护层60固化后的模量较大导致显示模组100二次模印的问题,同时也可以实现改善透光孔21导致的显示模组100模印问题。当透明保护层60固化后的模量等于或趋近于100MPa时,透明保护层60固化后的模量相对较大,可以更有利于透明保护层60改善显示模组100的模印问题。
示例性的,透明保护层60的模量可以为8MPa、50MPa或者100MPa。
在一些实施例中,继续参阅图7所示,透明保护层60的厚度,自透明保护层60的中心至边缘,逐渐减小。
示例性的,在透明保护层60靠近支撑板20的一侧与支撑板20贴合的基础上,设置透明保护层60的厚度,自透明保护层60的中心至边缘,逐渐减小直至为零。透明保护层60背离支撑板20的一侧形成一个较为平缓的界面, 进而可以降低显示模组100模印的问题。
示例性的,可以采用旋涂的方式在支撑板20上形成透明保护层60。进一步保证可以实现明保护层60的厚度,自透明保护层60的中心至边缘,逐渐减小。但是并不限制于此,也可以采用其他可实现的方式制作。
其中,图7以透明保护层60背离支撑板20的一侧为弧形为例进行示意。可以理解的是,在另一些实施例中,透明保护层60背离支撑板20的一侧也可以为其他厚度渐变的形状,对透明保护层60的形状不做具体限定。
在一些实施例中,继续参阅图7所示,透明保护层60的最大厚度为d0,20μm≤d0≤50μm。
当透明保护层60的最大厚度d0等于或趋近于20μm时,透明保护层60的最大厚度d0的厚度较小,便于显示模组100轻薄化;同时透明保护层60也可以实现填充透光孔21内存在的凹陷位置41,改善显示模组100的模印问题。当透明保护层60的最大厚度d0等于或趋近于50μm时,透明保护层60的最大厚度d0较大,可以便于实现填充透光孔21内存在的凹陷位置41,改善显示模组100的模印问题。
示例性的,透明保护层60的最大厚度为d0可以为20μm、30μm、40μm或者50μm。
在一些实施例中,继续参阅图2所示,支撑板20包括第一金属层22。第一金属层22的厚度为d1,80μm≤d1≤300μm。
当第一金属层22的厚度等于或趋近于80μm时,可以在降低支撑板20重量的同时满足支撑板20对支撑力的需求。当第一金属层22的厚度等于或趋近于300μm时,可以在满足支撑板20支撑力的同时避免支撑板20的重量过重,影响显示模组100的使用感,保证用户体验感。
示例性的,第一金属层22可以为不锈钢SUS、铜或者钛合金等金属材质,第一金属层22的厚度可以为80μm、100μm、200μm或者300μm。
图8为图1中A-A’处的又一种截面结构图。在一些实施例中,参阅图8,以及结合图1所示,支撑板20包括第二金属层23和辅助支撑层24。辅助支撑层24位于第二金属层23靠近柔性显示面板10的一侧。辅助支撑层24的单位重量小于第二金属层23的单位重量。第二金属层23的厚度和辅助支撑层24的厚度之和为d2,80μm≤d2≤300μm。
在一些实施例中,由于支撑板20包括第二金属层23和辅助支撑层24,且第二金属层23的厚度和辅助支撑层24的厚度之和的范围为80μm~300μm。当第二金属层23的厚度和辅助支撑层24的厚度之和等于或趋近于80μm时, 可以在降低支撑板20重量的同时满足支撑板20支撑力。当第二金属层23的厚度和辅助支撑层24的厚度之和等于或趋近于当300μm时,可以在满足支撑板20支撑力的同时,避免支撑板20的重量过重,保证用户体验感。在此基础上,设置辅助支撑层24的单位重量小于第二金属层23的单位重量,实现在支撑板20原有厚度不变的基础上,通过调节支撑板20的材料,设置部分第二金属层23替换为辅助支撑层24,有效降低第二金属层23的重量,进一步降低支撑板20的重量。
此外,设置辅助支撑层24位于第二金属层23靠近柔性显示面板10的一侧,便于利用第二金属层实现接地,便于导出显示模组100内部的静电,提高显示模组100的良率。
示例性的,第二金属层23的材料可以与第一金属层22的材料可以相同,为不锈钢SUS、铜或者钛合金等金属材质。
示例性的,第二金属层23的厚度可以为30μm、50μm或者100μm。当第二金属层23的厚度等于或趋近于30μm时,第二金属层23的厚度较小,可以在满足支撑板20支撑力的同时,较为明显的降低支撑板20的重量。
在一些实施例中,继续参阅图8所示,支撑板20还可以包括粘接层25。粘接层25位于二金属层23和辅助支撑层24之间。粘接层25可以用于固定连接二金属层23和辅助支撑层24。示例性的,粘接层25可以为OCA光学胶(Optical Clear Adhesive)。
在一些实施例中,继续参阅图8所示,辅助支撑层24的材料包括碳纤维。由于碳纤维具有高强度和导热性较好的性能。基于此,设置支撑板20包括第二金属层23和碳纤维。可以在满足支撑板20对支撑强度的需求、降低支撑板20的重量的同时提高支撑板20的散热性能。此外,辅助支撑层24还可以为其他材质,比如橡胶等。
图9为图1中A-A’处的又一种截面结构图。在一些实施例中,参阅图9,以及结合图1所示,显示模组100还包括第一粘接层71、第二粘接层72和透明弹性体层80。透明弹性体层80位于第一粘接层71和第二粘接层72之间,且第一粘接层71位于透明弹性体层80靠近支撑板20的一侧。其中,透明弹性体层80的透光率大于或等于95%。
在一些实施例中,显示模组100还包括透明弹性体层80。透明弹性体层80位于支撑板20和柔性显示面板10之间。由于透明弹性体层80具有一定的弹性和一定的回复性能,可以缓冲贴合时压力以及起到贴合后回复的作用,降低显示模组100模印的问题。此外,由于透明弹性体层80的透光率大于或 等于95%,属于一种高透材质,可以有利于提高光线透过率,大大提高进入透光区域Q的外界光光量,从而达到提高前置摄像效果及人脸识别精度的目的。其中,透明弹性体层80上下粘接第一粘接层71和第二粘接层72,利用第一粘接层71与支撑板20粘接,利用第二粘接层72与柔性显示面板10进行粘接。
示例性的,第一粘接层71和第二粘接层72可以均为OCA光学胶,但是并不限制于此,也可以利用其他粘接胶实现固定的作用。
在一些实施例中,继续参阅图9所示,透明弹性体层80弹性模量的取值范围为40MPa~500MPa。
当透明弹性体层80弹性模量等于或趋近于40MPa,可以满足缓冲减震的作用的同时,有效改善显示模组100模印的问题。当透明弹性体层80弹性模量等于或趋近于500MPa,可以在降低甚至消除显示模组100模印问题的同时,起到良好的缓冲减震的作用。
示例性的,透明弹性体层80弹性模量可以为40MPa、100MPa、200MPa或400MPa。在透明弹性体层80弹性模量为100MPa时,相对于其他弹性模量时,具有更好的缓冲和回复性能,实现缓冲贴合时压力以及起到贴合后回复的作用,改善显示模组100的模印问题。
可选的,设置透明弹性体层80的厚度在50μm~200μm范围内,避免透明弹性体层80过薄或者过厚而导致无法起到缓冲、回复的作用。示例性的,透明弹性体层80的厚度可以为50μm、100μm或200μm。
在一些实施例中,继续参阅图9所示,透明弹性体层80的材料包括热塑性聚氨酯弹性体(Thermoplastic Polyurethanes,TPU)、热塑性弹性体(Thermoplastic Rubbe,TPE)或热塑性聚酯弹性体(Thermoplastic Polyester Elastome,TPEE)中任意一种,或者两个以上组合的材料。此外,透明弹性体层80的材料选择上述材质相对于传统泡棉材料,透明弹性体层80的弹性模量相对较大,可以具有更好的缓冲和回复性能,降低显示模组100模印的问题。
示例性的,当透明弹性体层80的材料为热塑性聚氨酯弹性体(Thermoplastic Polyurethanes,TPU)时,材料型号可以为岩谷ISR-TPS50。
图10为图1中A-A’处的又一种截面结构图。在一些实施例中,参阅图10,以及结合图1所示,显示模组100还包括聚光层90。聚光层90包括多个间隔设置的微透镜91。其中,多个微透镜91位于透明弹性体层80与第一粘接层71或第二粘接层72之间,多个微透镜91在显示面11上的正投影和透 明支撑结构30在显示面11上的正投影至少部分交叠。
在一些实施例中设置显示模组100还包括聚光层90。聚光层90可以起到汇聚光线的效果,设置聚光层90在显示面11上的正投影和透明支撑结构30在显示面11上的正投影至少部分交叠,可以提高透明支撑结构30位置处的聚光效果,以便满足显示模组100透光区域Q对图像光线透过率的需求,提高摄像质量。其中,图10以多个微透镜91位于透明弹性体层80与第二粘接层72之间为例进行示意,可以理解的是,在另外一些实施例中,多个微透镜91位于透明弹性体层80与第一粘接层71之间。
在一些实施例中在透明弹性体层80靠近第一粘接层71或靠近第二粘接层72的一侧形成聚光层90。聚光层90可以起到汇聚光线的效果,设置聚光层90在显示面11上的正投影和透明支撑结构30在显示面11上的正投影至少部分交叠,可以提高透明支撑结构30位置处的聚光效果,以便满足显示模组100透光区域Q对图像光线透过率的需求,提高摄像质量。
继续参阅图10所示,微透镜91为凸透镜,凸透镜的平面91A位于聚光层90中靠近透明弹性体层80的区域,凸透镜的凸面91B位于聚光层90中靠近第二粘接层72的区域,利用微透镜凸透镜91汇聚光线,满足显示模组100透光区域Q对图像光线透过率的需求,提高摄像质量。
示例性的,聚光层90可以采用高折材料,比如1.7左右的材料,形成微透镜91从而更好的实现对光线汇聚的效果。可以采用喷墨打印(IKP)的方式)在透明弹性体层80靠近第一粘接层71或靠近第二粘接层72的一侧形成聚光层90。
图11为图10中微透镜的一种结构图。在一些实施例中,参阅图11,以及结合图10所示,多个微透镜91位于透明弹性体层80与第二粘接层72之间。至少一个微透镜91包括多层层叠设置的光学膜层911。相邻两个光学膜层911中,靠近支撑板20的光学膜层911的折射率,低于背离支撑板20的光学膜层911的折射率。以及,多层光学膜层911中,最靠近支撑板20的光学膜层911的折射率大于透明弹性体层80的折射率。
在一些实施例中设置聚光层90位于透明弹性体层80背离支撑板20一侧,至少一个微透镜91包括多层层叠设置的光学膜层911。越靠近支撑板20的光学膜层911的折射率越小,但是最小折射率的光学模层911的折射率依旧大于透明弹性体层80的折射率,也即与透明弹性体层80相邻设置的光学膜层的折射率大于透明弹性体层80的折射率,使得沿聚光层90指向透明弹性体80的方向上,聚光层90指向透明弹性体80中的膜层的折射率依次降低,实 现对光线的汇聚作用。
其中,图11以微透镜91包括5层光学膜层91为例进行示意。示例性的,一般情况下,透明弹性体层80的折射率大致为1.5左右,而光学膜层911的折射率大致为1.7左右。继续参阅图10和图11所示,微透镜91的多个光学膜层911中,最靠近柔性显示面板10的光学膜层911为光学膜层911A,且光学膜层911A折射率最大。微透镜91的多个光学膜层911中,最靠近支撑板20的光学膜层911为光学膜层911B,光学膜层911B的折射率最小,且光学膜层911B的折射层大于透明弹性体层80的折射率。使沿光学膜层911A指向光学膜层911B的方向上,光学膜层911的折射率逐渐由1.7降至1.5。
图12A为本公开一些实施例提供的一种支撑板的结构图,图12B为本公开一些实施例提供的又一种支撑板的结构图,图12C为本公开一些实施例提供的又一种支撑板的结构图,图12D为本公开一些实施例提供的又一种支撑板的结构图。在一些实施例中,参阅图12A~图12D所示,支撑板20包括第一支撑部20A、第二支撑部20B和可弯折部分20C。可弯折部分20C位于第一支撑部20A和第二支撑部20B之间。可弯折部分20C具有多个槽W。以及,透光孔21位于第一支撑部20A和/或第二支撑部20B。
可弯折部分20C用于实现折叠显示模组。其中,可弯折部分20C具有多个槽W,便于对支撑板20进行弯折。支撑板20上的透光孔21的数量可以为一个或者多个,可以根据实际需求设置。当支撑板20上仅包括一个透光孔21时,透光孔21可以位于第一支撑部20A或第二支撑部20B上。而当支撑板20上包括多个透光孔21时,透光孔21可以位于第一支撑部20A或第二支撑部20B上。或者多个透光孔21分散设置在第一支撑部20A和第二支撑部20B上。其中,透光孔21在支撑板20所在平面的正投影的形状可以为圆形、椭圆形、方形、星形或者多边形,对透光孔21的形状不做限定。
其中,图12A以支撑板20包括一个透光孔21,且透光孔21的形状为椭圆形为例进行示例。图12B以支撑板20包括一个透光孔21,且透光孔21的形状为六边形为例进行示意。图12C以支撑板20包括一个透光孔21,且透光孔21的形状为六角星形为例进行示意。图12D以支撑板20中包括两个透光孔21,透光孔21的形状均为圆形,且两个透光孔21分别位于第一支撑部20A和第二支撑部20B为例进行示意。
此外,上述支撑板20仅以单次折叠结构为例,即支撑板20只对折一次,后续对应显示模组100的暴露面积缩小一倍。但是并不限制于此,也可以设置支撑板20为多次折叠结构,以便后续将显示模组100折叠为暴露面积更 小的结构。其中,多次折叠结构包括两个或两个以上的折叠部位,对于折叠部位的具体位置不做具体限制。
图13为图1中A-A’处的又一种截面结构图。在一些实施例中,请参阅图13,以及图1所示,显示模组100还包括:盖板201、偏光片202和背膜203。
如图13所示,背膜203位于柔性显示面板10和支撑板20之间,背膜203可以对柔性显示面板10起到一定支撑的作用。其中,背膜203可以与通过胶层与柔性显示面板10和支撑板20粘接。示例性的,结合图9所示,背膜203可以通过第二粘接层72与支撑板20固定粘接。
盖板201,位于柔性显示面板10背离支撑板20的一侧。盖板201可以用于保护柔性显示面板10,防止柔性显示面板10被划伤。
示例性的,盖板201为柔性盖板。盖板201的材料包括透明聚酰亚胺、超薄玻璃中的至少一种。
偏光片202,位于盖板201和柔性显示面板10之间。偏光片202可以为圆偏光片。此处,偏光片202可以减少外界光发射,防止显示模组100产生刺眼效果。
示例性的,偏光片202包括贯穿偏光片202的开口K。开口K在支撑板20所在平面的正投影与透光孔21至少部分交叠,改善偏光片202对透光孔21位置处光线透过率的影响。当开口K在支撑板20所在平面的正投影完全覆盖透光孔21时,可以防止偏光片202对透光孔21位置处光线透过率的影响,相对于上述开口K在支撑板20所在平面的正投影与透光孔21至少部分交叠的情况,对透光孔21位置处的改善效果更好。
示例性的,开口K在支撑板20所在平面的正投影的边界与透光孔21的边界重合。此时,偏光片202不容易对透光孔21位置处的光线透过率产生影响,同时偏光片202除开口K以外的区域也不会过小,从而保证偏光片202对显示面内除透光孔21以外区域内的减反效果。需要说明的是,由于存在一定的不可控的误差,上述“重合”包括绝对重合和近似重合。也即开口K在支撑板20所在平面的正投影的边界与透光孔21的边界之间误差间距的浮动范围不超过误差阈值,也可以认为两个表面相对“重合”。其中,误差阈值的范围例如可以为0μm~0.5μm。其中,偏光片202的两侧可以分别通过胶层204与盖板201和柔性显示面板10粘接。上述胶层的材料包括热固定树脂胶或光可固化树脂。示例性的,胶层的材料为OCA光学胶(Optical Clear Adhesive)。
图14为图1中A-A’处的又一种截面结构图。在一些实施例中,请参阅图 14,以及图1所示,显示模组100包括盖板201和背膜203,显示模组100基于COE结构(Color Film On Encapsulation,即把彩膜部直接做在封装层上面)。彩膜层205位于柔性显示面板10和盖板201之间。彩膜层205包括分隔图案2051和多个彩膜部2052,分隔图案2051用于隔开多个彩膜部2052。多个彩膜部2052包括红色彩膜部、绿色彩膜部和蓝色彩膜部。
示例性的,位于显示面内除透光区域Q以外的区域内的分隔图案2051选用黑色吸光材料。
示例性的,位于透光区域Q内的分隔图案2051选用透明材料,可以便于提高透光区域Q内的光线透过率,以便满足屏下摄像的需求。
示例性的,显示模组100还可以包括覆盖层206(Over Coating,OC),将覆盖层206设置在彩膜层205和盖板201之间,覆盖彩膜层205。
图14所示显示模组100相对于图13所示的显示模组100,无需采用偏光片,有利于降低显示模组100的成本。同时,在无偏光片的技术下,可以在相同的显示亮度下,屏幕功耗更低。以及,相比偏光片能够大幅降低屏幕的厚度,利于延长柔性显示面板10的寿命。
需要说明的是,图14中以各个彩膜部2052的尺寸相等为例进行示意。在另一些实施例中,不同颜色的彩膜部2052的尺寸可以设置的不一样。例如,蓝色彩膜部尺寸与上述蓝色发光器件尺寸对应设置,绿色彩膜部的尺寸与上述绿色发光器件的尺寸对应设置,红色彩膜部的尺寸与上述红色发光器件的尺寸对应设置。此外,在透光区域Q内的彩膜部2052的尺寸可以小于显示面内除透光区域Q以外的区域内的彩膜部2052的尺寸;以及,在透光区域Q内的多个彩膜部2052的密度可以小于显示面内除透光区域Q以外的区域内的多个彩膜部2052的密度。
图15为本公开一些实施例提供的一种显示模组的流程结构图。另一方面,参阅图15,以及结合图1和图2所示,本公开一些实施例提供一种显示模组的制作方法,包括:S1~S5。
S1:提供支撑板20,在支撑板20上进行开口设计,在支撑板20上形成贯穿支撑板20的透光孔21。其中,可以利用激光切割、蚀刻等方式在支撑板上制作透光孔21。
S2:在透光孔21内填充透明支撑结构30。
S3:在透光孔21的侧壁211和透明支撑结构30之间填充遮光部40。
S4:提供柔性显示面板10,柔性显示面板10包括显示面11,显示面11包含透光区域Q。
S5:将柔性显示面板10和支撑板20贴合,使得透明支撑结构30在显示面11上的正投影与透光区域Q至少部分交叠,形成显示模组100。
在一些实施例中,设置在透光孔21内填充透明支撑结构30,透明支撑结构30可以与支撑板20结合,起到支撑柔性显示面板10的作用,从而可以降低或者消除透光孔21位置处不受力导致的模印问题。并且,选择透明的材料形成透明支撑结构30,也可以满足透光区域Q对光线透过率的需求,提高成像效果。此外,至少部分侧壁211设置遮光部40,遮光部40可以遮挡柔性显示面板10内部的发光器件O的发射的光线,避免发光器件O的发射的光线射入光学器件G,从而避免透光孔21位置处的漏光问题,提高光学器件G的成像质量。
在一些实施例中,继续参阅图15,以及结合图7所示,可以在步骤S3完成后,在支撑板20背离柔性显示面板10的一侧旋涂透明保护层60,便于形成平缓的透明保护层60,用于降低或者消除背光模组100模印的问题。
在一些实施例中,继续参阅图15,以及结合图9所示,在步骤S1之后步骤S2之前,提供透明弹性体层80,在透明弹性体层80上下两侧分别形成第一粘接层71和第二粘接层72。利用第一粘接层71将透明弹性体层80粘接在支撑板20的第一侧,第一侧为显示模组100中支撑板20靠近柔性显示面板10的一侧。由于透明弹性体层80具有一定的弹性和一定的回复性能,可以缓冲贴合时压力以及起到贴合后回复的作用,降低显示模组100模印的问题。此外,由于透明弹性体层80的透光率大于或等于95%,属于一种高透材质,可以有利于提高光线透过率,大大提高进入透光区域Q的外界光光量,从而达到提高前置摄像效果及人脸识别精度的目的。
图16为本公开一些实施例提供的一种显示装置的截面结构图。另一方面,本公开一些实施例提供了一种显示装置200。参阅图16所示。显示装置200包括:如上述任一实施例的显示模组100和光学器件G。光学器件G位于支撑板20背离柔性显示面板10的一侧,且光学器件G在支撑板20上的正投影与透光孔21至少部分交叠。
由于支撑板20包括透光孔21,且光学器件G在支撑板20上的正投影与透光孔21至少部分交叠。透光孔21可以满足光学器件G对光线透过率的需求,以实现全面屏设计。在透光孔21内填充透明支撑结构30,透明支撑结构30在显示面11上的正投影与透光区域Q至少部分交叠。透明支撑结构30选用透明材料,可以改善透明支撑结构30对透光孔21位置处光线透过率产生较大的影响,满足光学器件G对光线透过率的需求,提高成像效果。同时, 透明支撑结构30还可以与支撑板20结合,起到支撑柔性显示面板10的作用,从而可以降低或者消除透光孔21位置处不受力导致的模印问题。以及,在透光孔21的至少部分侧壁211设置遮光部40,遮光部40可以遮挡柔性显示面板10内部的发光器件O的发射的光线,避免发光器件O的发射的光线射入光学器件G,从而避免透光孔21位置处的漏光问题,提高光学器件G的成像质量。
示例性的,光学器件G可以包括摄像头模组、指纹模组、面部识别传感器等。比如:光学器件G为摄像头模组,摄像头模组中包括摄像头。设置光学器件G在支撑板20上的正投影与透光孔21至少部分交叠,可以便于提高摄像头的摄像效果及人脸识别精度。其中,摄像头可以利用第三粘接层M与支撑板20固定连接。本公开对第三粘接层M的材料不做限定,起到固定摄像头并不会影响摄像头成像的材料即可。
示例性的,本公开一些实施例提供的显示装置200可以用作电视机、手机、平板电脑、笔记本电脑、数码相框或导航仪等任何具有显示功能的产品或者部件,本公开实施例对该显示装置200的用途不做限制。
此外,上述显示装置200可以是显示不论运动(例如,视频)还是固定(例如,静止图像)的且不论文字还是的图像的任何装置。更明确地说,预期所述实施例可实施在多种电子装置中或与多种电子装置关联,所述多种电子装置例如(但不限于)移动电话、无线装置、个人数据助理(PDA)、手持式或便携式计算机、GPS接收器/导航器、相机、MP4视频播放器、摄像机、游戏控制台、手表、时钟、计算器、电视监视器、平板显示器、计算机监视器、汽车显示器(例如,里程表显示器等)、导航仪、座舱控制器和/或显示器、相机视图的显示器(例如,车辆中后视相机的显示器)、电子相片、电子广告牌或指示牌、投影仪、建筑结构、包装和美学结构(例如,对于一件珠宝的图像的显示器)等。
以上所述,仅为本公开的具体实施方式,但本公开的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本公开揭露的技术范围内,想到变化或替换,都应涵盖在本公开的保护范围之内。因此,本公开的保护范围应以所述权利要求的保护范围为准。

Claims (21)

  1. 一种显示模组,包括:
    柔性显示面板,包括显示面,所述显示面包含透光区域;
    支撑板,位于所述柔性显示面板背离所述显示面的一侧;所述支撑板上具有透光孔;
    透明支撑结构,填充于所述透光孔内;所述透明支撑结构在所述显示面上的正投影与所述透光区域至少部分交叠;以及,
    遮光部,位于所述透光孔的至少部分侧壁上。
  2. 根据权利要求1所述的显示模组,还包括:
    降反增透层,位于所述透光孔内;所述降反增透层与所述透明支撑结构层叠设置。
  3. 根据权利要求2所述的显示模组,其中,
    所述降反增透层位于所述透明支撑结构靠近所述柔性显示面板的一侧。
  4. 根据权利要求2或3所述的显示模组,其中,所述降反增透层包括:
    至少两层第一折射层;和,
    位于相邻两层所述第一折射层之间的第二折射层;
    其中,所述第一折射层的折射率小于所述第二折射层的折射率。
  5. 根据权利要求1~4中任一项所述的显示模组,还包括:
    透明保护层,位于所述支撑板背离所述柔性显示面板的一侧;所述透明保护层在所述支撑板上的正投影覆盖所述透光孔。
  6. 根据权利要求5所述的显示模组,其中,
    所述透明保护层在所述支撑板上的正投影的边界与所述透光孔之间的最小间距大于或等于0.5mm。
  7. 根据权利要求5或6所述的显示模组,其中,
    所述透明保护层的模量的取值范围为8MPa~100MPa。
  8. 根据权利要求5~7中任一项所述的显示模组,其中,
    所述透明保护层的厚度,自所述透明保护层的中心至边缘,逐渐减小。
  9. 根据权利要求5~8中任一项所述的显示模组,其中,
    所述透明保护层的最大厚度为d0,20μm≤d0≤50μm。
  10. 根据权利要求1~9中任一项所述的显示模组,其中,
    所述支撑板包括第一金属层;
    所述第一金属层的厚度为d1,80μm≤d1≤300μm。
  11. 根据权利要求1~9中任一项所述的显示模组,其中,
    所述支撑板包括:
    第二金属层;和,
    辅助支撑层,位于所述第二金属层靠近所述柔性显示面板的一侧;所述辅助支撑层的单位重量小于所述第二金属层的单位重量;所述第二金属层的厚度和所述辅助支撑层的厚度之和为d2,80μm≤d2≤300μm。
  12. 根据权利要求11所述的显示模组,其中,
    所述辅助支撑层的材料包括碳纤维。
  13. 根据权利要求1~12中任一项所述的显示模组,还包括:
    层叠设置的第一粘接层、第二粘接层和透明弹性体层;所述透明弹性体层位于所述第一粘接层和所述第二粘接层之间,且所述第一粘接层位于所述透明弹性体层靠近所述支撑板的一侧;
    其中,所述透明弹性体层的透光率大于或等于95%。
  14. 根据权利要求13所述的显示模组,其中,
    所述透明弹性体层弹性模量的取值范围为40MPa~500MPa。
  15. 根据权利要求13或14所述的显示模组,其中,
    所述透明弹性体层的材料包括热塑性聚氨酯弹性体、热塑性弹性体或热塑性聚酯弹性体中的至少一种。
  16. 根据权利要求13~15中任一项所述的显示模组,还包括:
    聚光层,包括多个间隔设置的微透镜;其中,多个微透镜位于所述透明弹性体层与所述第一粘接层或所述第二粘接层之间;
    所述多个微透镜在所述显示面上的正投影和所述透明支撑结构在所述显示面上的正投影至少部分交叠。
  17. 根据权利要求16所述的显示模组,其中,所述多个微透镜位于所述透明弹性体层与所述第二粘接层之间;
    至少一个所述微透镜包括多层层叠设置的光学膜层;
    相邻两个所述光学膜层中,靠近所述支撑板的光学膜层的折射率,低于背离所述支撑板的光学膜层的折射率;以及,
    所述多层光学膜层中,最靠近所述支撑板的光学膜层的折射率大于所述透明弹性体层的折射率。
  18. 根据权利要求1~17中任一项所述的显示模组,其中,
    所述透明支撑结构的材料包括超薄玻璃、聚对苯二甲酸乙二醇酯、聚甲基丙烯酸甲酯或聚碳酸酯中的至少一种。
  19. 根据权利要求1~18中任一项所述的显示模组,其中,
    在沿所述透明支撑结构指向所述支撑板的方向上,所述遮光部的尺寸为d3,0.1mm≤d3≤1mm。
  20. 根据权利要求1~19中任一项所述的显示模组,其中,
    所述支撑板包括第一支撑部、第二支撑部以及位于所述第一支撑部和所述第二支撑部之间的可弯折部;所述可弯折部具有多个槽;以及,
    所述透光孔位于所述第一支撑部和/或所述第二支撑部。
  21. 一种显示装置,包括:
    如权利要求1~20中任一项所述的显示模组;和,
    光学器件,位于所述支撑板背离所述柔性显示面板的一侧,且所述光学器件在所述支撑板上的正投影与所述透光孔至少部分交叠。
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