WO2023206259A1 - 显示模组及显示装置 - Google Patents

显示模组及显示装置 Download PDF

Info

Publication number
WO2023206259A1
WO2023206259A1 PCT/CN2022/089967 CN2022089967W WO2023206259A1 WO 2023206259 A1 WO2023206259 A1 WO 2023206259A1 CN 2022089967 W CN2022089967 W CN 2022089967W WO 2023206259 A1 WO2023206259 A1 WO 2023206259A1
Authority
WO
WIPO (PCT)
Prior art keywords
support
display panel
display
layer
opening
Prior art date
Application number
PCT/CN2022/089967
Other languages
English (en)
French (fr)
Inventor
周超
陈立强
石佳凡
王作家
廖川东
彭非同
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.)
Filing date
Publication date
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/CN2022/089967 priority Critical patent/WO2023206259A1/zh
Priority to CN202280000963.4A priority patent/CN117396800A/zh
Publication of WO2023206259A1 publication Critical patent/WO2023206259A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means

Definitions

  • the present disclosure relates to the field of display technology, and in particular, to a display module and a display device.
  • Fingerprint recognition technology refers to identifying fingerprint information by sensing and analyzing the signals of the valleys and ridges of fingerprints through fingerprint recognition modules. It has the advantages of high security, convenient and fast operation, and is widely used in electronic products. Fingerprint imaging technology can be implemented by optical imaging, capacitive imaging, ultrasonic imaging and other technologies. Among them, optical fingerprint recognition technology has gradually become the fingerprint recognition technology because of its strong penetrating ability, support for full-screen placement, and simple product structure design. The mainstream of identification technology is widely used in electronic products.
  • a display module including a display panel and a support layer.
  • the support layer is provided on the non-display side of the display panel; the support layer includes a support plate and a first support portion connected to the support plate; wherein the support plate is provided with a first opening, and the The first support part is disposed in the first opening; at least part of the first support part is light-transmissive; the side of the support plate close to the display panel is close to the side of the first support part.
  • the side surfaces of the display panel are approximately flush; the thickness of the support layer is approximately 10 ⁇ m to 200 ⁇ m.
  • the first support part is entirely made of transparent material; a side wall of the first support part in a direction perpendicular to the display panel is fixedly connected to the hole wall of the first opening.
  • the material of the first support part includes ultra-thin flexible glass or polymethylmethacrylate; and/or the light transmittance of the first support part is greater than or equal to 90%; and/or Or, the elastic modulus of the first support part is greater than or equal to 3 Gpa.
  • the support layer further includes an adhesive portion; the adhesive portion is provided between the first support portion and the hole wall of the first opening, and the support plate and the third opening The supporting parts are connected through the adhesive part.
  • the material of the bonding portion includes light-shielding material.
  • the material of the bonding part includes one-component epoxy glue; and/or the viscosity of the bonding part is 10000cP ⁇ 20000cP; and/or the first support part and the The distance between the inner walls of the first opening is 15 ⁇ m to 500 ⁇ m.
  • the first support part includes a plurality of support bars, at least two support bars are connected to the wall of the first opening; the plurality of support bars and the hole of the first opening
  • the wall defines a plurality of second openings.
  • the plurality of support bars and the cell walls of the first opening are connected to form a honeycomb structure or a grid structure.
  • the orthographic projection of a second opening on the display panel is a regular polygon, a circle, or an ellipse.
  • the display panel includes a plurality of sub-pixels; orthographic projections of the plurality of support bars on the display panel are staggered from the light-emitting areas of the plurality of sub-pixels.
  • the width of the support strip is less than or equal to the distance between the light-emitting areas of two adjacent sub-pixels; and/or the area of a second opening is greater than or equal to the light-emitting area of one sub-pixel. area.
  • the display module further includes a buffer layer disposed on a side of the support layer close to the display panel; the buffer layer includes a second support part, and the second support part is light-transmissive. .
  • the entire buffer layer is made of transparent material.
  • the material of the buffer layer includes thermoplastic polyurethane elastomer rubber; and/or the light transmittance of the buffer layer is greater than or equal to 92%; and/or the elastic modulus of the buffer layer It is 0.1Gpa ⁇ 0.15Gpa.
  • the buffer layer is provided with a third opening.
  • the second supporting part is provided in the third opening.
  • the material of the second support part includes polyethylene terephthalate; and/or, the light transmittance of the second support part is greater than or equal to 90%; and/or, The elastic modulus of the second support part is 0.5Gpa ⁇ 1.5Gpa.
  • the display module further includes an adhesive layer disposed on a side of the buffer layer close to the display panel; the second support part is bonded to the adhesive layer.
  • a display device including an optical device and the display module according to any of the preceding embodiments.
  • the optical device is provided on the non-display side of the display module.
  • the display device further includes a light-shielding layer disposed on a side of the support layer in the display module away from the display panel and covering the optical device.
  • the orthographic projection of the first opening on the supporting plate of the supporting layer on the display panel is located within the range of the orthographic projection of the light-shielding layer on the display panel; in the When the first support part of the support layer includes a plurality of second openings, the orthographic projection of the plurality of second openings on the display panel is located at the orthographic projection of the light shielding layer on the display panel. In the range.
  • Figure 1 is a top view of a display device provided according to some embodiments.
  • Figure 2 is a structural diagram of a display device according to some embodiments.
  • Figure 3 is another structural diagram of a display device provided according to some embodiments.
  • Figure 4 is a cross-sectional view along section line A-A’ in Figure 1;
  • Figure 5 is a cross-sectional view along section line B-B’ in Figure 1;
  • Figure 6 is another cross-sectional view along section line B-B’ in Figure 1;
  • Figure 7 is another cross-sectional view along section line B-B’ in Figure 1;
  • Figure 8 is a structural diagram of the support layer in Figure 7;
  • Figure 9 is another cross-sectional view along section line B-B’ in Figure 1;
  • Figure 10 is a structural diagram of the support layer in Figure 9;
  • Figure 11 is an enlarged view of area C in Figure 10;
  • Figure 12A is another cross-sectional view along the section line B-B' in Figure 1;
  • Figure 12B is a stress simulation analysis diagram of the display device corresponding to Figure 12A;
  • Figure 13 is another cross-sectional view along the section line B-B’ in Figure 1;
  • Figure 14 is another cross-sectional view along the section line B-B’ in Figure 1;
  • Figure 15 is another cross-sectional view along the section line B-B’ in Figure 1;
  • Figure 16 is another cross-sectional view along the section line B-B’ in Figure 1;
  • Figure 17 is another cross-sectional view along the section line B-B' in Figure 1.
  • 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, for example, from 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.
  • FIG. 1 is a top view of a display device 1000 provided by some embodiments of the present disclosure.
  • the display device 1000 may be any device that displays images, whether moving (eg, video) or stationary (eg, still images), and whether text or text. More specifically, it is contemplated that embodiments may be implemented in or associated with a variety of electronic devices, such as (but not limited to) mobile phones, wireless devices, Personal Digital Assistants (PDAs) ), handheld or portable computers, Global Positioning System (GPS) receivers/navigators, cameras, MP4 video players, camcorders, game consoles, watches, clocks, calculators, TV monitors, tablets Displays, computer monitors, automotive displays (e.g., odometer displays, etc.), navigators, cockpit controls and/or displays, displays for camera views (e.g., displays for rear-view cameras in vehicles), electronic photos, electronic billboards Or signage, projectors, architectural structures, packaging and aesthetic structures (for example, for displays of images of a piece of jewelry), etc.
  • the display device 1000 may be one of a curved display device, a foldable display device, or a rollable display device.
  • the display device 1000 includes a main display area A1 and a curved display area A2 .
  • the curved display area A2 is the bent, curled or folded portion of the display device 1000 .
  • the display device 1000 may be a display device with a curved surface on at least one side.
  • the curved surface display area A2 may be located on any one or more sides of the left, right, upper, or lower sides of the main display area A1. There are no specific limitations here.
  • the display device 1000 may be a display device with curved surfaces all around, and the curved surface display area A2 is arranged around the main display area A1 .
  • the display device 1000 may be a foldable display device. For example, as shown in FIG. 3 , after the display device 1000 is folded along the axis Li in FIG. 1 , the curved display area A2 is located on one side of the main display area A1.
  • the boundaries of the display device 1000 are generally rectangular. It should be noted that “substantially rectangular” means that the shape of the boundary of the display device 1000 is generally rectangular, but is not limited to a standard rectangle. That is, the "rectangle" here includes not only a substantially rectangular shape but also a shape similar to a rectangle in consideration of process conditions. For example, the long and short sides of the rectangle are curved at each intersection position (ie, at the corners), that is, the corners are smooth, so that the boundary of the display device 1000 has a shape of a rounded rectangle in plan view.
  • the display device 1000 includes a display module 100 and a packaging component 200 .
  • the packaging component 200 is disposed on one side of the display module 100 .
  • the package assembly 200 includes a polarizer 201, an adhesive layer 202, and a cover 203.
  • the polarizer 201 is disposed on the display side surface of the display module 100 (that is, the surface on the side that performs luminous display), and corresponds to at least the main display area A1.
  • the polarizer 201 can reduce the light on the display side surface of the display module 100.
  • the reflectivity improves the display contrast of the display device 1000 .
  • the cover 203 is disposed on the side of the polarizer 201 away from the display module 100 to protect the display module 100 .
  • the adhesive layer 202 is disposed between the polarizer 201 and the cover plate 203 for bonding the polarizer 201 and the cover plate 203 .
  • the aforementioned display device 1000 further includes a display driver chip 300 and a flexible circuit board 400 .
  • the display driver chip 300 is located on the side of the display module 100 away from the packaging component 200 and is electrically connected to the display module 100 ; the flexible circuit board 400 is disposed on the side of the display module 100 away from the packaging component 200 and is connected to the display module 100 Electrical connection.
  • the display driver chip 300 and the flexible circuit board 400 are used to provide the display module 100 with data signals required for displaying images.
  • the display device 1000 may further include a housing.
  • the display device 1000 further includes an optical device 30 disposed on the non-display side (the side opposite to the display side) of the display module 100 .
  • the optical device 30 By arranging the optical device 30 on the non-display side of the display module 100 , the optical device 30 is prevented from occupying the area on the display side of the display module 100 , maximizing the use of the display area of the display module 100 , which is beneficial to realizing the display device 1000 Full screen design.
  • the display device 1000 further includes a light-shielding layer that covers the optical device 30 to prevent ambient light from interfering with the optical device 30 and improve the efficiency of the optical device 30 (see FIG. 16 ).
  • the aforementioned display module 100 includes a display panel 10 and a support layer 20' provided on one side of the display panel 10.
  • the support layer 20' corresponds to the main display area A1 and the curved surface display area A2. That is, before the display panel 10 is bent to form a curved surface, the orthographic projection of the support layer 20' on the display panel 10 is located in the main display area A1. and curved surface display area A2.
  • the display panel 10, the adhesive layer 202 and the cover 203 are all flexible structures.
  • the support layer 20' is configured to provide rigid support for the above-mentioned flexible structure, avoid unexpected deformation of the above-mentioned flexible structure, and ensure that the display panel 10 can have and maintain a certain shape.
  • the support layer 20' can be made of SUS304 steel sheet.
  • the optical device 30 is an optical fingerprint recognition device.
  • the optical fingerprint recognition device (optical device 30 ) is provided under the screen, that is, on the non-display side of the display panel 10 .
  • the light emitted by the display panel 10 irradiates the finger located on the display side surface of the display panel 10 .
  • the light is reflected to form a return light carrying fingerprint information.
  • the return light passes through the display panel 10 and then illuminates the optical fingerprint. on the identification device for fingerprint identification and detection.
  • the inventor of the present disclosure found that when the display device 1000 is a curved display device, especially when the display device 1000 is a foldable display device, the support layer 20' needs to provide a certain strength of support force, so its material is Rigid materials such as stainless steel have poor light transmittance.
  • the optical device 30 is disposed under the screen, it is difficult for the return light to penetrate the support layer 20', making it difficult for the optical device 30 to collect the information of the return light, resulting in poor function realization of the optical device 30, for example, a fingerprint recognition device. Fingerprint recognition accuracy and speed are both low.
  • an embodiment of the present disclosure provides a display module 100 including a display panel 10 and a support layer 20 .
  • the display panel 10 may be a liquid crystal display panel or a photoluminescence display panel.
  • the electroluminescent display panel can be an organic electroluminescent (Organic Light Emitting Diode, OLED for short) display panel or a quantum dot electroluminescent (Quantum Dot Light Emitting Diode, QLED for short) display panel.
  • the photoluminescence display device may be a quantum dot photoluminescence display device.
  • the display panel 10 has a display side and a non-display side.
  • the display side refers to the side of the display panel 10 used to display images
  • the non-display side refers to the side of the display panel 10 away from the display side.
  • the support layer 20 is provided on the non-display side of the display panel 10 .
  • the support layer 20 includes a support plate 21 and a first support part 22 connected to the support plate 21.
  • the support plate 21 is provided with a first opening K1, and the first support part 22 is provided in the first opening K1.
  • the top view of the first opening K1 is circular, elliptical or polygonal.
  • the side of the support plate 21 close to the display panel 10 is substantially flush with the side of the first support portion 22 close to the display panel 10 . That is, the entire side of the support layer 20 close to the display panel 10 is generally located on the same horizontal plane, which can ensure that the support layer 20 provides uniform support to various positions of the display panel 10 and prevent the display panel 10 from being sunken or convex due to uneven support layer 20 . , affecting the yield rate of the display device 1000 .
  • the thickness of the support layer 20 is approximately 10 ⁇ m to 200 ⁇ m. For example, it is 10 ⁇ m, 18 ⁇ m, 30 ⁇ m, 40.5 ⁇ m, 60.78 ⁇ m, 80 ⁇ m, 92 ⁇ m, 100 ⁇ m, 135.5 ⁇ m, 178 ⁇ m or 200 ⁇ m.
  • the support layer 20 can provide sufficient support for the flexible structure in the display device 1000 while avoiding increasing the overall thickness of the display module 100 and even the display device 1000 . , which is beneficial to realizing a thin and light design of the display device 1000 .
  • the material of the support plate 21 is a rigid material, for example, the material of the support plate 21 is stainless steel.
  • the support plate 21 is configured to provide rigid support for the flexible structure of the display device 1000 to ensure that the display device 1000 can form and maintain a certain shape.
  • the material of the support plate 21 is copper, silver, steel, aluminum or aluminum alloy, or other materials with strong heat dissipation capabilities.
  • the support plate 21 is configured to serve as a heat dissipation film layer to dissipate heat from the display device 1000 .
  • At least part of the first support part 22 is light-transmissive.
  • the first supporting part 22 also has a certain supporting force.
  • the light transmittance of the first support part 22 is greater than or equal to 65%.
  • the light transmittance of the first supporting part 22 is 65%, 70%, 72%, 80%, 90% or 93%.
  • the first supporting part 22 can satisfy the supporting force and prevent the display panel 10 from sinking at the first opening K1, and at the same time, it can also be an optical device.
  • 30 provides a light transmission channel.
  • the optical device 30 is provided on a side of the first support portion 22 away from the display panel 10 .
  • the orthographic projection of the optical device 30 on the display panel 10 is located within the range of the orthographic projection of the first support portion 22 on the display panel 10 . That is, the optical device 30 and the first support portion 22 overlap each other in the thickness direction of the display panel 10 .
  • the orthographic projection of the optical device 30 on the display panel 10 is located within the range of the orthographic projection of the first support portion 22 on the display panel 10 .
  • the optical device 30 can be an under-screen camera, a fingerprint recognition device, a 3D face recognition device, an iris recognition device, a proximity sensor, and other devices that can rely on optical sensors to achieve specific functions.
  • the display module 100 provided by the embodiment of the present disclosure disposes the support plate 21 and the light-transmissive first support part 22 on the support layer 20 so that the support layer 20 meets the requirements for the flexible structure of the display device 1000 (such as the display panel 10, adhesive layer 202 and cover plate 203, etc.), and at the same time, increase the light transmittance at the position of the support layer 20 corresponding to the optical device 30, so that the optical device 30 can penetrate the support layer 20, so that the returned light can Effectively reaching the display side surface of the display panel 10 ensures that the optical device 30 can effectively realize its specific function, so that the optical device 30, such as an optical fingerprint recognition device, can be effectively applied to a flexible display device, and can especially be used to support the support layer 20 In foldable display devices with greater demand for flexibility, the application scenarios of the optical device 30 are expanded.
  • the aforementioned display module 100 further includes a back film 40 .
  • the back film 40 is provided on the side of the display panel 10 away from the packaging component 200 . It is used to protect the non-display side of the display panel 10. At the same time, the back film 40 provides a certain supporting force for the bending of the display panel 10 to avoid cracking caused by uneven stress when the display panel 10 is bent.
  • the back film 40 may include two parts that are disconnected from each other, and a part of the back film 40 may be bent along with the display panel 10 .
  • the two parts that are disconnected from each other There is no material of the back film 40 between them, thereby exposing the bending part of the display panel 10 and reducing the bending resistance of the bending part of the display panel 10 .
  • the back film 40 is made of a flexible material.
  • the material of the back film 40 may be polyterephthalate plastic, such as polyethylene terephthalate (PET).
  • PET polyethylene terephthalate
  • the material of the back film 40 can also be polyimide (Polyimide, PI for short) or cycloolefin polymer (Cyclo Olefin Polymer, COP for short).
  • the aforementioned display module 100 further includes a curved surface layer 40A.
  • the curved surface layer 40A is disposed on the side of the back film 40 away from the display panel 10 and has a predetermined curvature as a reference for the bending angles of other structural layers of the display module 100 (the display panel 10 and the packaging component 200 , etc.).
  • the first supporting part 22 is provided in the first opening K1 , and the first supporting part 22 is made of transparent material.
  • the side wall of the first support part 22 in the direction perpendicular to the display panel 10 is fixedly connected to the hole wall of the first opening K1.
  • the first support part 22 completely fills the first opening K1.
  • the first supporting part 22 has a certain supporting force.
  • the side of the first support part 22 close to the display panel 10 and the side of the support plate 21 close to the display panel 10 are located on the same horizontal plane, and the side of the first support part 22 away from the display panel 10 and the side of the support plate 21 away from the display panel 10 Located on the same level. It can be avoided that the display side surface of the display panel 10 is convex or sunken due to the first support portion 22 being convex or concave relative to the support plate 21 .
  • the orthographic projection of the optical device 30 on the display panel 10 is located within the range of the orthographic projection of the first opening K1 on the display panel 10 .
  • the diameter of the first opening K1 is larger than the maximum dimension of the optical device 30 in a direction parallel to the display side surface of the display panel 10 .
  • the difference between the diameter of the first opening K1 and the size of the optical device 30 in a direction parallel to the display side surface of the display panel 10 is greater than or equal to 0.2 mm.
  • the orthographic projection of the optical device 30 on the display panel 10 is located within the range of the orthographic projection of the first support portion 22 on the display panel 10 . That is, the first support portion 22 and the light-emitting device 30 correspond to the thickness direction of the display panel 10 , and the orthographic projection of the light-emitting device 30 on the display panel 10 is within the range of the orthographic projection of the first support portion 22 on the display panel 10 Inside. It can be ensured that the returned light can penetrate the support layer 20 to the greatest extent, thereby improving the sensitivity and accuracy of the optical device 30 .
  • the returned light can penetrate the support layer 20, Effectively improve the information collection effect of the optical device 30, so that the optical device 30 can be effectively used in flexible display devices, such as foldable display devices, without affecting its function realization effect; at the same time, the first support part 22 also has a certain supporting force, which can avoid the partial support of the supporting layer 20 being poor due to the opening of the first opening K1, causing the flexible structure of the flexible display device (such as the display panel 10, the adhesive layer 202 and the cover 203, etc.) to face
  • the first opening K1 is recessed, causing mold marks and other defects to appear on the display side surface of the display panel 10 .
  • the first support portion 22 includes at least one of the following three features:
  • the material of the first support part 22 may include ultra-thin flexible glass (Ultra Thin Glass, UTG for short).
  • the material of the first support part 22 may include polymethyl methacrylate (PMMA for short).
  • the thickness of the ultra-thin flexible glass may be less than or equal to 50 ⁇ m, such as 10 ⁇ m, 30 ⁇ m, 35 ⁇ m or 45.8 ⁇ m.
  • UTG or PMMA as the first supporting part 22 can simultaneously meet the requirements of the supporting layer 20 for light transmittance and supporting force.
  • the light transmittance of the first supporting part 22 is greater than or equal to 90%.
  • the light transmittance of the first supporting part 22 is 90.1%, 92%, 92.55%, 95% or 98%. Therefore, the requirements for the light transmittance of the support layer 20 when the optical device 30 is disposed under the screen can be met, and the efficiency of the optical device 30 can be improved.
  • the elastic modulus of the first support part 22 is greater than or equal to 3Gpa.
  • the elastic modulus of the first support part 22 is 3.5Gpa, 3.51Gpa, 3.513Gpa, 3.6Gpa, 4Gpa or 5Gpa.
  • the first support part 22 By making the first support part 22 have a certain light transmittance and satisfy a certain elastic modulus, the first support part 22 can not only provide a certain supporting force, but also meet the light transmittance required by the optical device 30, thereby This allows the optical device 30, such as the optical fingerprint recognition device, to be effectively applied in the flexible display device, thus improving the situation in which the optical device 30 cannot be applied to the foldable display device, or cannot be applied to the foldable display device efficiently.
  • the support layer 20 further includes an adhesive portion 23 .
  • the adhesive part 23 is provided between the first support part 22 and the hole wall of the first opening K1 , and the support plate 21 and the first support part 22 are connected through the adhesive part 23 .
  • the first support part 22 By disposing the adhesive part 23 between the first support part 22 and the hole wall of the first opening K1, the first support part 22 is firmly fixed in the first opening K1, and the first support part 22 is prevented from being damaged due to external force.
  • the support portion 22 is closer to or further away from the display panel 10 than the support plate 21 , causing defects such as bulges or depressions on the display side surface of the display panel 10 .
  • the material of the bonding portion 23 includes a light-shielding material.
  • the adhesive portion 23 is made of black light-opaque material.
  • the adhesive part 23 As a light-shielding material, the interference of ambient light on the optical device 30 is reduced, and the accuracy of the information collected by the optical device 30 is improved.
  • the orthographic projection of the adhesive portion 23 on the display panel 10 and the orthographic projection of the optical device 30 on the display panel 10 are staggered from each other. That is, the bonding portion 23 and the optical device 30 are staggered from each other in the thickness direction of the display panel 10 , thereby preventing the bonding portion 23 from blocking the light emission and collection of the optical device 30 and improving the accuracy and speed of functional realization of the optical device 30 .
  • the bonding portion 23 includes at least one of the following two features:
  • the material of the bonding part 23 includes one-component epoxy glue.
  • the second characteristic the viscosity of the adhesive part 23 is 10000cP ⁇ 20000cP.
  • the viscosity of the adhesive part 23 is 10000cP, 12000cP, 15300cP or 20000cP.
  • the fluidity of the bonding portion 23 can be reduced while ensuring the bonding strength of the bonding portion 23 , thereby preventing the bonding portion 23 from overflowing during the bonding process. flow.
  • the distance L1 between the first support part 22 and the hole wall of the first opening K1 is 15 ⁇ m to 500 ⁇ m. That is, the thickness of the adhesive portion 23 (dimension in the direction perpendicular to the inner wall of the first opening K1) is 15 ⁇ m to 500 ⁇ m.
  • the thickness of the adhesive portion 23 is 15 ⁇ m, 20 ⁇ m, 50 ⁇ m, 75 ⁇ m, 100 ⁇ m, 172.5 ⁇ m, 200 ⁇ m, 350 ⁇ m, or 500 ⁇ m.
  • the first support part 23 is firmly installed in the first opening K1, ensuring that the first support part 23 is close to the side of the display panel 10 and the support plate 21 is close to the display panel. 10 is at the same horizontal plane, and the side of the first support portion 23 away from the display panel 10 and the side of the support plate 21 away from the display panel 10 are at the same level, thus preventing the display side surface of the display panel 10 from being concave or protruding.
  • the first support part 22 includes a plurality of support bars 22A, and at least two support bars 22A are connected to the wall of the first opening K1 ; the plurality of support bars 22A and the first opening K1
  • the hole walls of the hole K1 surround a plurality of second openings K2. At least part of the hole wall of the first opening K1 also serves as the hole wall of the second opening K2.
  • the plurality of support bars 22A are fixedly connected to or integrally formed with the support plate 21 .
  • the thickness of the support bar 22A (the dimension in the direction perpendicular to the display side surface of the display panel 10 ) is substantially equal to the thickness of the support plate 21 (the dimension in the direction perpendicular to the display side surface of the display panel 10 ).
  • the support bar 22A is close to the side of the display panel 10 and is on the same level as the side of the support plate 21 close to the display panel 10 .
  • the support bar 22A is on the same level as the side of the support plate 21 away from the display panel 10 . level. It can be avoided that the support bar 22A is convex or concave relative to the support plate 21 , thereby preventing the display side surface of the display panel 10 from being bulged or sunken.
  • a support bar 22A is provided between two adjacent second openings K2.
  • the orthographic projection of a second opening K2 on the display panel 10 is a regular polygon, a circle or an ellipse.
  • the area of the orthographic projection of each second opening K2 on the display panel 10 is less than or equal to 0.2 times the orthographic projection of the optical device 30 on the display panel 10 . That is, one optical device 30 corresponds to a plurality of second openings K2 whose size is smaller than that of the optical device 30 .
  • Designing a small-sized second opening K2 can prevent the flexible structure of the display device 1000 from sinking. At the same time, multiple second openings K2 can ensure that the support layer 20 has a certain light transmittance, improving the performance of the optical device 30 in the flexible display. Applicability in the device.
  • the orthographic projection of the optical device 30 on the display panel 10 is located in the area where the orthographic projection of the plurality of second openings K2 on the display panel 10 is located.
  • the returned light can penetrate the support layer 20 through the plurality of second openings K2 to the greatest extent, thereby improving the sensitivity and accuracy of the optical device 30 .
  • the overall light transmittance of the first support portion 22 provided with the plurality of second openings K2 is approximately greater than or equal to 65%.
  • a plurality of support bars 22A and the hole walls of the first opening K1 are connected to form a honeycomb structure or a grid structure.
  • the honeycomb structure or grid structure can support the flexible structure of the display device 1000 , providing a certain amount of support for the flexible structure and effectively preventing the flexible structure from deforming beyond the prescribed time limit.
  • the flexible structure may sink, causing the display panel 10 to The display side surface is stamped at a position corresponding to the light emitting device 30 .
  • the plurality of support bars 22A and the hole wall of the first opening K1 surround a plurality of
  • the first support part 22 is in a grid shape.
  • the grid in the grid-shaped first support part 22, that is, the second via hole K2 provides a light-transmitting channel for the optical device 30 and improves the light transmittance of the support layer 20.
  • the wattle bars (i.e., the support bars 22A) in the grid-shaped first support part 22 provide a certain supporting force to prevent the flexible structure in the display device 1000 from collapsing with the corresponding optical device. Deformation occurs at the position 30, such as sinking, resulting in mold marks and other undesirable phenomena on the display side surface of the display panel 10.
  • the display module 100 provided by the embodiment of the present disclosure improves the applicability of the optical device 30 in the flexible display device, while ensuring the original structural characteristics of the flexible display device and avoiding the installation of the optical device 30 causing flexibility in the flexible display device.
  • the structure deforms.
  • the second opening K2 can also be filled with UTG material or PMMA material, which can further improve the supporting force of the first supporting part 22 and improve the strength of the supporting layer 20 while satisfying the light transmittance.
  • the display panel 10 includes a plurality of sub-pixels P.
  • multiple sub-pixels P are distributed in an array, and the sub-pixels P can emit color light.
  • Each sub-pixel P includes a light-emitting area P', and the color light emitted by the sub-pixel P is emitted from the light-emitting area P'.
  • the orthographic projections of the plurality of support bars 22A on the display panel 10 are staggered from the light-emitting areas P' of the plurality of sub-pixels P.
  • the support bar 22A is located between the light-emitting areas P' of two adjacent sub-pixels P. This prevents the support bar 22A from covering the light-emitting area P' and then blocking the emission path of the color light of the sub-pixel P, thereby avoiding reducing the luminescence of the display device 1000. Effect.
  • the width L2 of the support bar 22A is less than or equal to the distance L3 between the light-emitting areas P' of two adjacent sub-pixels P. This prevents the support bar 22A from blocking the light-emitting area P' of the sub-pixel P and reducing the light-emitting effect of the display device 1000.
  • the width L2 of the support bar 22A is approximately less than or equal to 520 ⁇ m.
  • the area of a second opening K2 is greater than or equal to the area of the light-emitting area P' of a sub-pixel P.
  • the light-emitting area P' is set to correspond to the position of the second opening K2, for example, so that the orthographic projection of the light-emitting area P' of the sub-pixel P on the display panel 10 is at the position of the second opening K2 on the display panel 10. within the range of orthographic projection. This ensures that the color light emitted by the sub-pixel P corresponding to the position of the first support part 22 can be completely emitted to the display panel 10, and avoids reducing the luminous effect of the display device 1000.
  • the plurality of second openings K2 includes a central opening K21 and a plurality of edge openings K22 evenly arranged around the central opening K21.
  • the second opening K2 is in the shape of a regular hexagon, and the plurality of second openings K2 includes a central opening K21 and six edge openings K22 evenly arranged around the central opening K21.
  • the opposite sides between two adjacent second openings K2 are arranged parallel to each other, so that the plurality of second openings K2 are evenly distributed, which is beneficial to the tendency of the pressing force to spread evenly during the fingerprint test.
  • a support layer 20 is provided in the foldable display device, and a plurality of second via holes K2 in the shape of regular hexagons are opened in the first support part 22. After simulation testing, the opening of the second opening holes K2 is performed under a pressure of 600g. Pressure is applied to the hole area, and after resting for 10 seconds, the settlement amount is 0.2mm, which meets the requirements of the display device 1000 for the fingerprint sensor.
  • the display module 100 further includes a buffer layer 50 disposed on a side of the support layer 20 close to the display panel 10 .
  • the material of the buffer layer 50 includes foam.
  • the buffer layer 50 is configured to absorb the stress and external force impact that the display panel 10 receives during the assembly process and subsequent use, and effectively protects the display panel 10 and other components.
  • the buffer layer 50 includes a second support portion 50A.
  • the second support part 50A is light-transmissive.
  • the orthographic projection of the optical device 30 on the display panel 10 is located within the range of the orthographic projection of the second support portion 50A on the display panel 10 . That is, the portion of the buffer layer 50 corresponding to the position of the optical device 30 (i.e., the second supporting portion 50A) is made of transparent material, thereby preventing the buffer layer 50 from blocking the return light, ensuring that the optical device 30 can effectively realize its specific function, and further improving the optical quality of the buffer layer 50 .
  • the applicability of the device 30 in a flexible display device; in addition, the installation position of the optical device 30 is expanded. For example, the optical device 30 can still be installed even if the display device 1000 is provided with the buffer layer 50, and the optical device 30 can be implemented in the display device 1000. Settings at any position on the full screen of the device 1000.
  • the orthographic projection of the second supporting part 50A on the display panel 10 at least partially overlaps with the orthographic projection of the first supporting part 22 on the display panel 10 .
  • the orthographic projection of the optical device 30 on the display panel 10 is located within the range of the portion where the orthographic projection of the second support portion 50A on the display panel 10 and the orthographic projection of the first support portion 22 on the display panel 10 overlap each other, This ensures that the optical device 30 can effectively penetrate the support layer 20 and the buffer layer 50 , avoids the support layer 20 and the buffer layer 50 from blocking the return light, and improves the effectiveness of the optical device 30 .
  • the buffer layer 50 is entirely made of transparent material. That is, the entire buffer layer 50 serves as the second support portion 50A.
  • glue layers are provided on both sides of the buffer layer 50 close to and away from the display panel 10 .
  • the buffer layer 50 includes at least one of the following four features:
  • the material of the buffer layer 50 includes thermoplastic polyurethane elastomer rubber (Thermoplastic Polyurethanes, TPU for short). Thereby, the buffer layer 50 can satisfy certain light transmittance and supporting force at the same time.
  • thermoplastic polyurethane elastomer rubber Thermoplastic Polyurethanes, TPU for short.
  • the light transmittance of the buffer layer 50 is greater than or equal to 92%.
  • the light transmittance of the buffer layer 50 is 92%, 93%, 93.5%, 94% or 98%.
  • the buffer layer 50 can provide a light transmission channel for the optical device 30 and avoid the problem that the buffer layer 50 blocks the optical device 30 and reduces the efficiency of the optical device 30 .
  • the elastic modulus of the buffer layer 50 is 0.1Gpa ⁇ 0.15Gpa.
  • the elastic modulus of the buffer layer 50 is 0.1Gpa, 0.101Gpa, 0.12Gpa, 0.125Gpa, 0.14Gpa or 0.15Gpa.
  • the elastic modulus of the buffer layer 50 is controlled to be 0.1Gpa to 0.15Gpa in order to achieve the buffering effect of the buffer layer 50 and to facilitate the buffer layer 50 to absorb the stress and external force impact experienced by the display panel 10 during the assembly process and subsequent use.
  • the display panel 10 and other components form effective protection.
  • the buffer layer 50 can also have a certain supporting force, which facilitates the folding design of the display device 1000 .
  • the thickness of the buffer layer 50 (dimension in the direction perpendicular to the display side surface of the display panel 10) is 0.1 mm to 0.12 mm.
  • the thickness of the buffer layer 50 is 0.1 mm, 0.102 mm, 0.11 mm or 0.12 mm.
  • the buffering effect of the buffer layer 50 is ensured.
  • the buffer layer 50 By setting the buffer layer 50 as a whole to be made of a transparent material, the requirements of the optical device 30 for the light transmittance of the buffer layer 50 are met, and the buffer layer 50 is set to have a certain elasticity, for example, the elastic modulus is 0.15Gpa, thereby retaining the ability of the buffer layer 50 to absorb stress. function to ensure the protective effect of the buffer layer 50 on the display panel 10 and other structures.
  • FIG. 12B Referring to the stress simulation analysis diagram shown in FIG. 12B , in FIG. 12B , taking the optical device 30 as an optical fingerprint recognition device as an example, a stress analysis is performed on the position corresponding to the optical device 30 in the display device 1000 in FIG. 12A , as follows: As shown in FIG. 12B , from the force application center a of the finger (that is, the center where the optical device 30 is located) to the edge b of the display device 1000 , the stress on the display device 1000 is evenly spread, and the support effect is good.
  • the force application center a of the finger that is, the center where the optical device 30 is located
  • the buffer layer 50 is provided with a third opening K3.
  • the second support part 50A is provided in the third opening K3.
  • the material of the portion of the buffer layer 50 except the second support portion 50A includes foam.
  • a supporting light-transmitting component (ie, the second supporting portion 50A) is provided in the third opening K3, thereby ensuring the light transmittance requirements of the optical device 30 for the buffer layer 50 and improving the flexibility of the display device 1000.
  • the device provides a certain supporting force and also provides a certain buffering capacity at the position of the third opening K3 to avoid opening the third opening K3 and causing the position of the third opening K3 to be unable to absorb external impact force, which may cause the display panel 10.
  • Optical device 30 or other structures are damaged at the position of the third opening K3.
  • the orthographic projection of the optical device 30 on the display panel 10 is located within the range of the orthographic projection of the second support portion 50A on the display panel 10. This ensures that the return light can smoothly penetrate the buffer layer 50 and avoids the problem that the buffer layer 50 blocks the light of the optical device 30 and reduces the efficiency of the optical device 30 .
  • the second support portion 50A includes at least one of the following three features:
  • the material of the second support part 50A includes polyethylene terephthalate (PET).
  • PET polyethylene terephthalate
  • the PET material can simultaneously meet the requirements of the buffer layer 50 for light transmittance, supporting force, and buffering effect.
  • the light transmittance of the second support part 50A is greater than or equal to 90%.
  • the light transmittance of the second support part 50A is 90%, 91%, 92.5%, 95%, or 98%. Therefore, the requirements for the light transmittance of the buffer layer 50 when the optical device 30 is disposed under the screen can be met, and the efficiency of the optical device 30 can be improved.
  • the elastic modulus of the second support part 50A is 0.5Gpa to 1.5Gpa.
  • the elastic modulus of the second support part 50A is 0.5Gpa, 0.65Gpa, 1Gpa, or 1.5Gpa.
  • the elastic modulus of the second support part 50A is substantially equal to the elastic modulus of the buffer layer 50 . This ensures that the film layer where the buffer layer 50 is located has uniform impact resistance.
  • the support layer 20 includes a support plate 21 and a first support part 22, and the support plate 21 is provided with a first opening K1, and the first support part 22 is provided in the first opening K1.
  • the orthographic projection of the first opening K1 on the display panel 10 is within the range of the orthographic projection of the third opening K3 on the display panel 10 .
  • the radius of the third via hole K3 is greater than the radius of the first via hole K1.
  • the difference between the radius of the third via hole K3 and the radius of the first via hole K1 is greater than or equal to 0.2 mm. This ensures that after the return light penetrates the support layer 20 , it can effectively penetrate the buffer layer 50 to the greatest extent, thereby improving the efficiency of the optical device 30 .
  • the display module 100 further includes an adhesive layer 60 disposed on a side of the buffer layer 50 close to the display panel 10 .
  • the adhesive layer 60 is configured to attach the buffer layer 50 to one side of the display panel 10 to prevent the buffer layer 520 from falling off, thereby enhancing the impact resistance of the buffer layer 50 .
  • the second support part 50A is bonded to the adhesive layer 60 . This ensures that the second support part 50A is firmly filled in the third opening K3, and prevents the second support part 50A from protruding or recessing relative to the buffer layer 50, thereby preventing the display side surface of the display panel 10 from appearing such as bulging or molding. Flat phenomenon.
  • the light-shielding layer 70 is provided on a side of the support layer 20 in the display module 100 away from the display panel 10 and covers the optical device 30 .
  • the light-shielding layer 60 covers the optical device 30 to prevent ambient light from interfering with the optical device 30 and improve the efficiency of the optical device 30.
  • the orthographic projection of the first opening K1 on the supporting plate 21 of the supporting layer 20 on the display panel 10 is located within the range of the orthographic projection of the light shielding layer 30 on the display panel 10 Inside. While covering the optical device 30, the light-shielding layer 60 also covers the first via hole K1 in the support layer 20, thereby ensuring that all the light passing through the first via hole K1 comes from the optical device 30 and preventing ambient light from interfering with the optical device 30. Improve the efficiency of optics 30.
  • the orthographic projection of the plurality of second openings K2 on the display panel 10 is located within the range of the orthographic projection of the light shielding layer 30 on the display panel 10 .
  • the light-shielding layer 60 While covering the optical device 30, the light-shielding layer 60 also covers the second via hole K2 in the buffer layer 50, thereby ensuring that all the light passing through the second via hole K2 comes from the optical device 30 and preventing ambient light from interfering with the optical device 30. Improve the efficiency of optics 30.

Abstract

一种显示模组（100）及显示装置（1000），其中，显示模组（100）包括显示面板（10）和支撑层（20）。支撑层（20）设于显示面板（10）的非显示侧；支撑层（20）包括支撑板（21）和与支撑板（21）连接的第一支撑部（22）；其中，支撑板（21）设有第一开孔（K1），第一支撑部（22）设于第一开孔（K1）内；第一支撑部（22）的至少部分可透光；支撑板（21）的靠近显示面板（10）的侧面，与第一支撑部（22）的靠近显示面板（10）的侧面大致齐平；支撑层（21）的厚度大致为10μm～200μm。

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，尤其是涉及一种显示模组及显示装置。
背景技术
指纹识别技术是指通过指纹识别模组感应、分析指纹的谷和脊的信号来识别指纹信息，具有安全性高，且操作方便快捷的优点，而被广泛的应用于电子产品中。指纹成像技术的实现方式有光学成像、电容成像、超声成像等多种技术，其中，光学指纹识别技术因其具有穿透能力强、支持全屏摆放、产品结构设计简单等特点，而逐渐成为指纹识别技术的主流，被广泛的应用于电子产品中。
发明内容
一方面，提供一种显示模组，包括显示面板和支撑层。
所述支撑层设于所述显示面板的非显示侧；所述支撑层包括支撑板和与所述支撑板连接的第一支撑部；其中，所述支撑板设有第一开孔，所述第一支撑部设于所述第一开孔内；所述第一支撑部的至少部分可透光；所述支撑板的靠近所述显示面板的侧面，与所述第一支撑部的靠近所述显示面板的侧面大致齐平；所述支撑层的厚度大致为10μm～200μm。
在一些实施例中，所述第一支撑部整体为透明材质；所述第一支撑部的垂直于所述显示面板的方向上的侧壁，与所述第一开孔的孔壁固定连接。
在一些实施例中，所述第一支撑部的材料包括超薄柔性玻璃或聚甲基丙烯酸甲酯；和/或，所述第一支撑部的光透过率大于或等于90％；和/或，所述第一支撑部的弹性模量大于或等于3Gpa。
在一些实施例中，所述支撑层还包括粘接部；所述粘接部设于所述第一支撑部和所述第一开孔的孔壁之间，所述支撑板和所述第一支撑部之间通过所述粘接部连接。
在一些实施例中，所述粘接部的材料包括遮光材料。
在一些实施例中，所述粘接部的材料包括单组分环氧胶；和/或，所述粘接部的粘度为10000cP～20000cP；和/或，所述第一支撑部和所述第一开孔的内壁之间的间距为15μm～500μm。
在一些实施例中，所述第一支撑部包括多个支撑条，至少两个支撑条与所述第一开孔的孔壁连接；所述多个支撑条以及所述第一开孔的孔壁围成多个第二开孔。
在一些实施例中，所述多个支撑条以及所述第一开孔的孔壁连接，形成蜂窝状结构或网格状结构。
在一些实施例中，一个第二开孔在所述显示面板上的正投影呈正多边形、圆形或椭圆形。
在一些实施例中，所述显示面板包括多个子像素；所述多个支撑条在所述显示面板上的正投影，与所述多个子像素的发光区相互错开。
在一些实施例中，所述支撑条的宽度，小于或等于相邻两个子像素的发光区之间的间距；和/或，一个第二开孔的面积，大于或等于一个子像素的发光区的面积。
在一些实施例中，所述显示模组还包括缓冲层，设于所述支撑层靠近所述显示面板的一侧；所述缓冲层包括第二支撑部，所述第二支撑部可透光。
在一些实施例中，所述缓冲层整体为透明材质。
在一些实施例中，所述缓冲层的材料包括热塑性聚氨酯弹性体橡胶；和/或，所述缓冲层的光透过率大于或等于92％；和/或，所述缓冲层的弹性模量为0.1Gpa～0.15Gpa。
在一些实施例中，所述缓冲层设有第三开孔。所述第二支撑部设于所述第三开孔内。
在一些实施例中，所述第二支撑部的材料包括聚对苯二甲酸乙二醇酯；和/或，所述第二支撑部的光透过率大于或等于90％；和/或，所述第二支撑部的弹性模量为0.5Gpa～1.5Gpa。
在一些实施例中，所述显示模组还包括：粘接层，设于所述缓冲层靠近所述显示面板的一侧；所述第二支撑部与所述粘接层粘接。
另一方面，提供一种显示装置，包括光学器件和前述任一项实施例所述的显示模组。所述光学器件设于所述显示模组的非显示侧。
在一些实施例中，所述显示装置还包括遮光层，设于所述显示模组中的支撑层的远离显示面板的一侧，且覆盖所述光学器件。
在一些实施例中，所述支撑层的支撑板上的第一开孔在所述显示面板上的正投影，位于所述遮光层在所述显示面板上的正投影的范围内；在所述支撑层的第一支撑部包括多个第二开孔的情况下，所述多个第二开孔在所述显示面板上的正投影，位于所述遮光层在所述显示面板上的正投影的范围内。
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为根据一些实施例提供的显示装置的俯视图；
图2为根据一些实施例提供的显示装置的一种结构图；
图3为根据一些实施例提供的显示装置的另一种结构图；
图4为沿图1中的剖面线A-A’的截面图；
图5为沿图1中的剖面线B-B’的一种截面图；
图6为沿图1中的剖面线B-B’的另一种截面图；
图7为沿图1中的剖面线B-B’的另一种截面图；
图8为图7中的支撑层的结构图；
图9为沿图1中的剖面线B-B’的另一种截面图；
图10为图9中的支撑层的结构图；
图11为图10中的C区域的放大图；
图12A为沿图1中的剖面线B-B’的另一种截面图；
图12B为对图12A所对应显示装置的应力模拟分析图；
图13为沿图1中的剖面线B-B’的另一种截面图；
图14为沿图1中的剖面线B-B’的另一种截面图；
图15为沿图1中的剖面线B-B’的另一种截面图；
图16为沿图1中的剖面线B-B’的另一种截面图；
图17为沿图1中的剖面线B-B’的另一种截面图。
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。
在描述一些实施例时，可能使用了“电连接”和“连接”及其衍伸的表达。例如，描述一些实施例时可能使用了术语“电连接”以表明两个或两个以上部件彼此间有直接物理接触或电接触。这里所公开的实施例并不必然限制于本文内容。
“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。
如本文所使用的那样，“约”、“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。
在本公开的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。
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为本公开的一些实施例提供的显示装置1000的俯视图。该显示装置1000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，预期实施例可实施在多种电子装置中或与多种电子装置关联，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(Personal Digital Assistant，简称PDA)、手持式或便携式计算机、全球定位系统(Global Positioning System，简称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。图1中以该显示装置1000为手机为例进行示意。
该显示装置1000可以为曲面显示装置、可折叠显示装置或者可卷曲显示装置中的一种。
如图2和图3所示，显示装置1000包括主显示区A1和曲面显示区A2，曲面显示区A2即为显示装置1000弯折、卷曲或折叠的部分。
示例性地，显示装置1000可以为至少一侧具有曲面的显示装置，例如曲面显示区A2可以位于主显示区A1的左侧、右侧、上侧或下侧中的任意一侧或多侧，在此不做具体限定。
例如图2所示，显示装置1000可以为四周均具有曲面的显示装置，曲面显示区A2围绕主显示区A1设置。
可选地，显示装置1000可以为可折叠显示装置，例如图3所示，显示装置1000按照图1中的轴线Li折叠后，曲面显示区A2位于主显示区A1一侧。
示例性地，显示装置1000的边界大致为矩形。需要说明的是，“大致为矩形”是指，显示装置1000的边界的形状整体上呈矩形形状，但是并不局限为标准的矩形。即，这里的“矩形”不但包括基本矩形的形状，而且考虑到工艺条件，还包括类似于矩形的形状。例如，矩形的长边和短边在每个相交的位置(即拐角处)为弯曲状，即拐角处平滑，使得显示装置1000的边界在平面图的形状为圆角矩形。
如图4所示，显示装置1000包括显示模组100和封装组件200。封装组件200设于显示模组100的一侧。
在一些实施例中，封装组件200包括偏光片201、粘胶层202和盖板203。
其中，偏光片201设置于显示模组100的显示侧表面(即进行发光显示的一侧的表面)，且至少与主显示区A1对应，偏光片201能够降低显示模组100显示侧表面的光线反射率，提升显示装置1000的显示对比度。
盖板203设置于偏光片201远离显示模组100的一侧，用于保护显示模组100。
粘胶层202设置于偏光片201与盖板203之间，用于粘接偏光片201与盖板203。
在一些实施例中，参阅图4，前述显示装置1000还包括显示驱动芯片300和柔性线路板400。
显示驱动芯片300位于显示模组100远离封装组件200的一侧，且与显示模组100电连接；柔性线路板400设置于显示模组100远离封装组件200的一侧，且与显示模组100电连接。显示驱动芯片300和柔性线路板400用于向显示模组100提供显示画面所需的数据信号。
可选地，显示装置1000还可以包括外壳。
在一些实施例中，如图5所示，显示装置1000还包括光学器件30，设于显示模组100的非显示侧(与显示侧相对的一侧)。
通过在显示模组100的非显示侧设置光学器件30，避免光学器件30占据显示模组100的显示侧的面积，实现显示模组100的显示面积的最大化利用，有利于实现显示装置1000的全面屏设计。
示例性地，显示装置1000还包括遮光层，遮光层覆盖光学器件30，避免环境光对光学器件30产生干扰，提高光学器件30的功效(可参阅图16)。
如图5所示，在相关技术中，前述显示模组100包括显示面板10、设于显示面板10一侧的支撑层20’。
该支撑层20’与主显示区A1和曲面显示区A2对应，即，在对显示面板10进行弯折形成曲面之前，支撑层20’在显示面板10上的正投影，同时位于主显示区A1和曲面显示区A2。显示面板10、粘胶层202和盖板203均为柔性结构，支撑层20’被配置为，为上述柔性结构提供刚性支 撑，避免上述柔性结构产生预期之外的变形，确保显示面板10能够具有并保持一定的形态。示例性地，支撑层20’可以由SUS304钢片制作形成。
示例性地，光学器件30为光学指纹识别器件。在相关技术中，光学指纹识别器件(光学器件30)为屏下设置，也即，设于显示面板10的非显示侧。在进行指纹检测时，显示面板10发出的光照射到位于显示面板10显示侧表面的手指上，光经过反射后形成带有指纹信息的返回光，该返回光经过显示面板10后照射在光学指纹识别器件上，以进行指纹的识别检测。
经本公开发明人研究发现，在显示装置1000为曲面显示装置的情况下，尤其在显示装置1000为可折叠显示装置的情况下，支撑层20’需要提供一定强度的支撑力，因此其材料为不锈钢等刚性材料，光透过率较差。当在屏下设置光学器件30时，返回光较难穿透支撑层20’，导致光学器件30难以采集到返回光的信息，导致光学器件30的功能实现效果较差，例如，指纹识别器件的指纹识别准确度和速度均较低。
为了解决上述技术问题，如图6所示，本公开实施例提供了一种显示模组100，包括显示面板10和支撑层20。
该显示面板10可以为液晶显示面板或光致发光显示面板。在该显示面板10为电致发光显示面板的情况下，电致发光显示面板可以为有机电致发光(Organic Light Emitting Diode，简称OLED)显示面板或量子点电致发光(Quantum Dot Light Emitting Diode，简称QLED)显示面板。在该显示面板10为光致发光显示面板的情况下，光致发光显示装置可以为量子点光致发光显示装置。
该显示面板10具有显示侧和非显示侧，显示侧是指显示面板10用于显示图像的一侧，非显示侧是指显示面板10背离显示侧的一侧。
如图6所示，支撑层20设于显示面板10的非显示侧。支撑层20包括支撑板21和与支撑板21连接的第一支撑部22，支撑板21设有第一开孔K1，第一支撑部22设于第一开孔K1内。
示例性地，第一开口K1的俯视图呈圆形、椭圆形或者多边形。
其中，如图6所示，支撑板21的靠近所述显示面板10的侧面，与第一支撑部22的靠近显示面板10的侧面大致齐平。即，支撑层20的靠近显示面板10的侧面整体大致位于同一水平面，可以保证支撑层20为显示面板10的各个位置提供均匀的支撑，避免显示面板10由于支撑层20不平整而发生凹陷或凸起，影响显示装置1000的良品率。
支撑层20的厚度大致为10μm～200μm。例如为10μm、18μm、30μm、 40.5μm、60.78μm、80μm、92μm、100μm、135.5μm、178μm或200μm。
通过控制支撑层20的厚度大致在10μm～200μm的范围内，可以使支撑层20对显示装置1000中的柔性结构提供足够的支撑力的同时，避免增加显示模组100乃至显示装置1000的整体厚度，有利于实现显示装置1000的轻薄化设计。
示例性地，支撑板21的材料为刚性材料，例如支撑板21的材料为不锈钢。在此情况下，支撑板21被配置为，为显示装置1000的柔性结构提供刚性支撑，确保显示装置1000能够形成并保持一定的形态。
示例性地，支撑板21的材料为铜、银、钢、铝或者铝合金等散热能力较强的材料。在此情况下，支撑板21被配置为，作为散热膜层对显示装置1000进行散热。
第一支撑部22的至少部分可透光。示例性地，第一支撑部22还具有一定的支撑力。
示例性地，第一支撑部22的光透过率大于或等于65％。例如，第一支撑部22的光透过率为65％、70％、72％、80％、90％或93％等。
通过设置第一支撑部22的光透过率大于或等于65％，使得第一支撑部22可以在满足支撑力，避免显示面板10在第一开口K1处发生下陷的同时，还可以为光学器件30提供光线传输通道。
如图6所示，示例性地，光学器件30设于第一支撑部22远离显示面板10的一侧。光学器件30在显示面板10上的正投影，位于第一支撑部22在显示面板10上的正投影的范围内。即，光学器件30与第一支撑部22在显示面板10的厚度方向上相互交叠。
示例性地，光学器件30在显示面板10上的正投影，位于第一支撑部22在显示面板10上的正投影的范围内。
需要说明的是，光学器件30可以为屏下摄像头、指纹识别器件、3D人脸识别器件、虹膜识别器件、近距离传感器等可以依靠光学传感器实现特定功能的器件。
本公开实施例提供的显示模组100通过在支撑层20设置支撑板21和可以透光的第一支撑部22，使得支撑层20满足对显示装置1000的柔性结构(例如显示面板10、粘胶层202和盖板203等)的支撑效果，同时，增大支撑层20的与光学器件30对应的位置处的光透过率，使得光学器件30可以穿透支撑层20，从而使得返回光可以有效到达显示面板10的显示侧表面，保证光学器件30可以有效地实现其特定功能，从而使光学器件30，例如光学指纹识 别器件有效地应用于柔性显示装置，尤其可以应用于对支撑层20支撑性需求较大的可折叠显示装置中，拓展了光学器件30的应用场景。
在示例性实施例中，如图4所示，前述显示模组100还包括背膜40。
背膜40设于显示面板10远离封装组件200的一侧。其用于保护显示面板10非显示侧，同时，背膜40为显示面板10的弯折提供一定的支撑力，避免显示面板10弯折时应力不均匀导致开裂。
示例性地，如图4所示，背膜40可以包括相互断开的两部分，其中的一部分背膜40可以随着显示面板10被弯折，在这种情况下，相互断开的两部分之间没有背膜40的材料，从而暴露显示面板10的弯折部分，可以降低显示面板10的弯折部分的弯折阻力。
示例性地，背膜40由柔性材料制成。
示例性地，背膜40的材料可以为聚对苯二甲酸类塑料，例如为聚对苯二甲酸乙二酯(Polyethylene Terephthalate，简称PET)。背膜40的材料还可以为聚酰亚胺(Polyimide，简称PI)或环烯烃聚合物(Cyclo Olefin Polymer，简称COP)。
在示例性实施例中，如图4所示，前述显示模组100还包括曲面层40A。
曲面层40A设置于背膜40远离显示面板10的一侧，其预设有一定的弧度，以作为显示模组100其他结构层(显示面板10和封装组件200等)的弯折角度的参照。
在一些实施例中，如图6所示，第一支撑部22设于第一开孔K1内，第一支撑部22为透明材质。第一支撑部22的垂直于显示面板10的方向上的侧壁，与第一开孔K1的孔壁固定连接。
示例性地，如图6所示，第一支撑部22完全填充第一开孔K1。
示例性地，第一支撑部22具有一定的支撑力。
示例性地，第一支撑部22靠近显示面板10的侧面与支撑板21靠近显示面板10的侧面位于同一水平面，第一支撑部22远离显示面板10的侧面与支撑板21远离显示面板10的侧面位于同一水平面。可以避免第一支撑部22相对于支撑板21凸起或下凹导致的显示面板10的显示侧表面发生凸起或下陷的情况。
示例性地，光学器件30在显示面板10上的正投影，位于第一开孔K1在显示面板10上的正投影的范围内。例如，第一开孔K1的直径大于光学器件30沿平行于显示面板10显示侧表面的方向上的最大尺寸。例如，第一开孔K1的直径与光学器件30沿平行于显示面板10显示侧表面的方向上的尺寸之 间的差值大于或等于0.2mm。
示例性地，光学器件30在显示面板10上的正投影，位于第一支撑部22在显示面板10上的正投影的范围内。即，第一支撑部22与发光器件30在显示面板10的厚度方向上相对应，发光器件30在显示面板10上的正投影，处于第一支撑部22在显示面板10上的正投影的范围内。可以保证返回光可以最大程度地穿透支撑层20，提高光学器件30的灵敏度和准确度。
通过在支撑板21上的与光学器件30对应的位置开设第一开孔K1，并在第一开孔K1内设置能够透光的第一支撑部22，使得返回光可以穿透支撑层20，有效提高光学器件30的信息采集效果，使得光学器件30可以在不影响其功能实现效果的情况下，有效地应用于柔性显示装置中，例如应用于可折叠显示装置中；同时，第一支撑部22还具有一定的支撑力，可以避免由于开设第一开孔K1导致支撑层20局部支撑性差，而造成柔性显示装置的柔性结构(例如显示面板10、粘胶层202和盖板203等)朝向第一开孔K1凹陷，使得显示面板10的显示侧表面出现模印等不良现象。
示例性地，第一支撑部22包括以下三个特征中的至少一个特征：
第一个特征：第一支撑部22的材料可以包括超薄柔性玻璃(Ultra Thin Glass，简称UTG)。或者，第一支撑部22的材料可以包括聚甲基丙烯酸甲酯(polymethyl methacrylate，简称PMMA)。其中，超薄柔性玻璃的厚度可以小于或等于50μm，例如为10μm、30μm、35μm或45.8μm。UTG或者PMMA作为第一支撑部22可以同时满足支撑层20对于光透过率和支撑力的需求。
第二个特征：第一支撑部22的光透过率大于或等于90％。例如，第一支撑部22的光透过率为90.1％、92％、92.55％、95％或98％。从而可以满足光学器件30在屏下设置时对于支撑层20的光透过率的要求，提高光学器件30的功效。
第三个特征：第一支撑部22的弹性模量大于或等于3Gpa。例如，第一支撑部22的弹性模量为3.5Gpa、3.51Gpa、3.513Gpa、3.6Gpa、4Gpa或5Gpa。以便提供一定的支撑力，避免在第一开孔K1处因为支撑力不足导致的显示面板10下陷的问题。
通过使得第一支撑部22具有一定的光透过率以及满足一定的弹性模量，使得第一支撑部22既可以提供一定的支撑力，又可以满足光学器件30需要的光透过率，从而使得光学器件30，例如光学指纹识别器件可以有效地应用于柔性显示装置中，从而改善光学器件30无法应用到可折叠显示装置中，或者无法高效地应用到可折叠显示装置中的情况。
在示例性实施例中，如图7和图8所示，支撑层20还包括粘接部23。
粘接部23设于第一支撑部22和第一开孔K1的孔壁之间，支撑板21和第一支撑部22之间通过粘接部23连接。
通过在第一支撑部22和第一开孔K1的孔壁之间设置粘接部23，使得第一支撑部22稳固地固定在第一开孔K1内，避免由于在外力作用下导致第一支撑部22相对于支撑板21更靠近或更远离显示面板10，从而导致显示面板10的显示侧表面出现凸起或下凹等缺陷。
示例性地，粘接部23的材料包括遮光材料。例如，粘接部23为黑色不透光材料。
通过将粘接部23设置为遮光材料，减少环境光对光学器件30产生干扰，提高光学器件30采集的信息的准确度。
示例性地，粘接部23在显示面板10上的正投影，与光学器件30在显示面板10上的正投影相互错开。即，粘接部23和光学器件30在显示面板10的厚度方向上相互错开，从而避免粘接部23阻挡光学器件30的光线发射和收集，提高光学器件30的功能实现的准确度和速度。
示例性地，粘接部23包括以下两个特征中的至少一个特征：
第一个特征：粘接部23的材料包括单组分环氧胶。
第二个特征：粘接部23的粘度为10000cP～20000cP。例如，粘接部23的粘度为10000cP、12000cP、15300cP或20000cP。
通过将粘接部23的黏度控制在10000cP～20000cP，可以在保证粘接部23的粘接力度的同时，降低粘接部23的流动性，从而避免粘接部23在粘接过程中发生溢流。
如图7和图8所示，第一支撑部22和第一开孔K1的孔壁之间的间距L1为15μm～500μm。也即，粘接部23的厚度(沿垂直于第一开孔K1内壁的方向上的尺寸)为15μm～500μm。例如，粘接部23的厚度为15μm、20μm、50μm、75μm、100μm、172.5μm、200μm、350μm或500μm。
通过设置粘接部23的材质、黏度和尺寸等，使得第一支撑部23稳固地设于第一开孔K1内，保证第一支撑部23靠近显示面板10的侧面与支撑板21靠近显示面板10的侧面处于同一水平面，第一支撑部23远离显示面板10的侧面与支撑板21远离显示面板10的侧面处于同一水平面，避免显示面板10显示侧表面发生下凹或突出等情况。
在一些实施例中，如图9所示，第一支撑部22包括多个支撑条22A，至少两个支撑条22A与第一开孔K1的孔壁连接；多个支撑条22A以及第一开 孔K1的孔壁围成多个第二开孔K2。所述第一开孔K1的孔壁的至少部分同时作为第二开孔K2的孔壁。
示例性地，多个支撑条22A与支撑板21固定连接或一体成型。
示例性地，支撑条22A的厚度(沿垂直于显示面板10的显示侧表面的方向上的尺寸)，大致等于支撑板21的厚度(沿垂直于显示面板10的显示侧表面的方向上的尺寸)。
示例性地，支撑条22A靠近显示面板10的侧面，与支撑板21靠近显示面板10的侧面处于同一水平面，支撑条22A远离显示面板10的侧面，与支撑板21远离显示面板10的侧面处于同一水平面。可以避免支撑条22A相对于支撑板21出现凸起或者下凹的情况，从而避免显示面板10的显示侧表面发生鼓包或者下陷的情况。
示例性地，相邻两个第二开孔K2之间设有一个支撑条22A。
示例性地，一个第二开孔K2在显示面板10上的正投影呈正多边形、圆形或椭圆形。
示例性地，每个第二开孔K2在显示面板10上的正投影的面积，小于或等于光学器件30在显示面板10上的正投影的0.2倍。即，一个光学器件30对应尺寸小于光学器件30的多个第二开孔K2。
设计小尺寸的第二开孔K2可以避免显示装置1000的柔性结构发生下陷，同时，多个第二开孔K2又可以保证支撑层20具有一定的光透过性，提高光学器件30在柔性显示装置中的适用性。
光学器件30在显示面板10上的正投影，位于多个第二开孔K2在显示面板10上的正投影所在的区域内。从而使得返回光可以最大程度地通过多个第二开孔K2穿透支撑层20，提高光学器件30的灵敏度和准确度。
示例性地，设有多个第二开孔K2的第一支撑部22的整体的光透过率大致大于或等于65％。
示例性地，如图10所示，多个支撑条22A以及第一开孔K1的孔壁连接，形成蜂窝状结构或网格状结构。蜂窝状结构或网格状结构可以将显示装置1000的柔性结构撑住，为柔性结构提高一定的支撑力，有效避免柔性结构发生逾期之外的形变，例如，柔性结构发生下陷，导致显示面板10的显示侧表面在对应发光器件30的位置发生模印。
通过设置第一支撑部22的多个支撑条22A中的至少两个支撑条22A与第一开孔K1的孔壁连接，多个支撑条22A以及第一开孔K1的孔壁围成多个第二开孔K2，当设置光学器件30，光学器件30在显示面板10上的正投影， 位于多个第二开孔K2在显示面板10上的正投影所在的区域内的情况下，可以使得第一支撑部22呈网格状，网格状第一支撑部22中的网格，即第二过孔K2，为光学器件30提供透光的通道，提升支撑层20的光透过率，增强光学器件30在柔性显示装置中的适用性；同时，网格状第一支撑部22中的荆条(即支撑条22A)提供一定的支撑力，避免显示装置1000中的柔性结构在对应光学器件30的位置处发生形变，例如发生下陷，导致显示面板10的显示侧表面出现模印等不良现象。
因此，本公开实施例提供的显示模组100在提高光学器件30在柔性显示装置中的适用性的同时，保证柔性显示装置原有的结构特点，避免设置光学器件30导致柔性显示装置中的柔性结构发生形变。
示例性地，第二开孔K2中还可以填充UTG材料或者填充PMMA材料，可以在满足光透过率的情况下，进一步提高第一支撑部22的支撑力，提高支撑层20的强度。
在示例性实施例中，如图11所示，显示面板10包括多个子像素P。
示例性地，多个子像素P呈阵列分布，子像素P能够发射颜色光，每个子像素P均对应包括发光区P’，子像素P发出的颜色光从发光区P’射出。
多个支撑条22A在显示面板10上的正投影，与多个子像素P的发光区P’相互错开。例如，支撑条22A位于相邻的两个子像素P的发光区P’之间，避免支撑条22A遮住发光区P’后阻挡子像素P颜色光的发射路径，从而避免降低显示装置1000的发光效果。
示例性地，支撑条22A的宽度L2，小于或等于相邻两个子像素P的发光区P’之间的间距L3。从而避免支撑条22A遮挡子像素P的发光区P’，避免降低显示装置1000的发光效果。
例如，当相邻设置的两个子像素P的发光区P’之间的间距L3大致为50μm时，支撑条22A的宽度L2大致小于或等于520μm。
示例性地，一个第二开孔K2的面积，大于或等于一个子像素P的发光区P’的面积。
示例性地，设置发光区P’与第二开孔K2位置对应，例如，使得子像素P的发光区P’在显示面板10上的正投影，处于第二开孔K2在显示面板10上的正投影的范围内。从而保证与第一支撑部22位置对应的子像素P发出的颜色光能够完整地发射至显示面板10，避免降低显示装置1000的发光效果。
在示例性实施例中，如图11所示，多个第二开孔K2包括中心开孔K21和围绕中心开孔K21均匀设置的多个边缘开孔K22。
示例性地，如图11所示，第二开孔K2呈正六边形，多个第二开孔K2包括一个中心开孔K21和六个围绕中心开孔K21均匀设置的边缘开孔K22。其中，相邻两个第二开孔K2之间相对的边相互平行设置，从而使得多个第二开孔K2均匀分布，从而有利于手指指纹测试时按压力呈现均匀散开的趋势。
在可折叠显示装置中设置支撑层20，且在第一支撑部22中开设呈正六边形的多个第二过孔K2，经过仿真测试，在600g压力条件下对第二开孔K2的开孔区域施加压力，静止10s后，沉降量为0.2mm，满足显示装置1000对指纹传感器的要求。
在一些实施例中，如图12A所示，显示模组100还包括缓冲层50，设于支撑层20靠近显示面板10的一侧。
示例性地，缓冲层50的材料包括泡棉。
缓冲层50被配置为吸收显示面板10在装配过程中以及后续使用过程中所受到的应力和外力冲击，对显示面板10以及其他零部件形成有效保护。
缓冲层50包括第二支撑部50A。第二支撑部50A可透光。
示例性地，光学器件30在显示面板10上的正投影，位于第二支撑部50A在显示面板10上的正投影的范围内。即，缓冲层50的与光学器件30位置对应的部分(即第二支撑部50A)为透明材质，从而避免缓冲层50阻挡返回光，保证光学器件30可以有效地实现其特定功能，进一步提高光学器件30在柔性显示装置中的适用性；此外，拓展了光学器件30的设置位置，例如，即使在显示装置1000设有缓冲层50的位置依然可以设置光学器件30，可以实现光学器件30在显示装置1000的全屏的任意位置的设置。
示例性地，第二支撑部50A在显示面板10上的正投影，与第一支撑部22在显示面板10上的正投影至少部分重叠。而且，光学器件30在显示面板10上的正投影，位于第二支撑部50A在显示面板10上的正投影与第一支撑部22在显示面板10上的正投影相互重叠的部分的范围内，从而保证光学器件30可以有效穿透支撑层20和缓冲层50，避免支撑层20和缓冲层50遮挡返回光，提高光学器件30的有效性。
在示例性实施例中，如图12A和图13所示，缓冲层50整体为透明材质。即缓冲层50整体作为第二支撑部50A。
示例性地，缓冲层50靠近和远离显示面板10的两侧均设有胶层。
示例性地，缓冲层50包括以下四个特征中的至少一个特征：
第一个特征：缓冲层50的材料包括热塑性聚氨酯弹性体橡胶(Thermoplastic Polyurethanes，简称TPU)。从而使缓冲层50可以同时满足 一定的光透过率和支撑力。
第二个特征：缓冲层50的光透过率大于或等于92％。例如，缓冲层50的光透过率为92％、93％、93.5％、94％或98％。通过设置缓冲层50的光透过率大于或等于92％，使得缓冲层50可以为光学器件30提供光线传输通道，避免缓冲层50遮挡光学器件30造成光学器件30功效降低的问题。
第三个特征：缓冲层50的弹性模量为0.1Gpa～0.15Gpa。例如，缓冲层50的弹性模量为0.1Gpa、0.101Gpa、0.12Gpa、0.125Gpa、0.14Gpa或0.15Gpa。控制缓冲层50的弹性模量为0.1Gpa～0.15Gpa，以便实现缓冲层50的缓冲效果，便于缓冲层50吸收显示面板10在装配过程中以及后续使用过程中所受到的应力和外力冲击，对显示面板10以及其他零部件形成有效保护。此外，还可以使得缓冲层50具有一定的支撑力，利于实现显示装置1000的折叠设计。
第四个特征：缓冲层50的厚度(沿垂直于显示面板10的显示侧表面的方向上的尺寸)为0.1mm～0.12mm。例如，缓冲层50的厚度为0.1mm、0.102mm、0.11mm或0.12mm。从而保证缓冲层50的缓冲作用。
通过设置缓冲层50整体为透明材质，满足光学器件30对缓冲层50光透过率的要求，并设置缓冲层50具有一定弹性，例如弹性模量为0.15Gpa，从而保留缓冲层50吸收应力的作用，保证缓冲层50对显示面板10等结构的保护作用。
参阅图12B所示的应力模拟分析图，在图12B中，以光学器件30为光学指纹识别器件为例，对图12A中的显示装置1000中光学器件30所对应的位置进行受力分析，如图12B所示，由手指的施力中心a(也即光学器件30所在位置处的中心)至显示装置1000的边缘b，显示装置1000受到的应力均匀地扩散，且支撑效果良好。
在示例性实施例中，如图14所示，缓冲层50设有第三开孔K3。第二支撑部50A设于第三开孔K3内。
示例性地，缓冲层50除第二支撑部50A以外的部分的材料包括泡棉。
在第三开孔K3内设置具有支撑力的透光部件(即第二支撑部50A)，从而在保证光学器件30对缓冲层50的光透过率的要求的同时，为显示装置1000的柔性器件提供一定的支撑力，也在第三开孔K3所在位置提供一定的缓冲能力，避免开设第三开孔K3导致第三开孔K3所在位置无法吸收外界冲击力而导致显示面板10、光学器件30或其他结构在第三开孔K3的位置处受到损伤。
光学器件30在显示面板10上的正投影，位于第二支撑部50A在显示面 板10上的正投影的范围内。从而保证返回光顺利穿透缓冲层50，避免缓冲层50阻挡光学器件30的光线而导致的光学器件30的功效降低的问题。
示例性地，第二支撑部50A包括以下三个特征中的至少一个特征：
第一个特征：第二支撑部50A的材料包括聚对苯二甲酸乙二醇酯(Polyethylene Terephthalate，简称PET)。PET材料作为第二支撑部50A，可以同时满足缓冲层50对于光透过率、支撑力以及缓冲效果的需求。
第二个特征：第二支撑部50A的光透过率大于或等于90％。例如，第二支撑部50A的光透过率为90％、91％、92.5％、95％或98％。从而可以满足光学器件30在屏下设置时对于缓冲层50的光透过率的要求，提高光学器件30的功效。
第三个特征：第二支撑部50A的弹性模量为0.5Gpa～1.5Gpa。例如，第二支撑部50A的弹性模量为0.5Gpa、0.65Gpa、1Gpa或1.5Gpa。以便提供一定的支撑力，避免在第三开孔K3处因为支撑力不足导致的显示面板10下陷的问题；同时，保留第二支撑部50A的缓冲能力，保证缓冲层50的抗冲击作用。
示例性地，第二支撑部50A的弹性模量与缓冲层50的弹性模量大致相等。从而保证缓冲层50所在膜层具有均匀的抗冲击能力。
示例性地，如图14所示，在支撑层20包括支撑板21和第一支撑部22，且支撑板21设有第一开孔K1，第一支撑部22设于第一开孔K1内的情况下，第一开孔K1在显示面板10上的正投影，处于第三开孔K3在显示面板10上的正投影的范围内。例如，第三过孔K3的半径大于第一过孔K1的半径，例如，第三过孔K3的半径与第一过孔K1的半径之间的差值大于或等于0.2mm。从而可以保证返回光穿透支撑层20后，能够最大程度上有效地穿透缓冲层50，提高光学器件30的功效。
在一些实施例中，如图15所示，显示模组100还包括粘接层60，设于缓冲层50靠近显示面板10的一侧。
粘接层60被配置为将缓冲层50贴附在显示面板10的一侧，避免缓冲层520脱落，从而增强缓冲层50的抗冲击性能。
示例性地，第二支撑部50A与粘接层60粘接。从而保证第二支撑部50A牢固地填充于第三开孔K3内，避免第二支撑部50A相对于缓冲层50凸出或凹陷，从而避免显示面板10的显示侧表面出现鼓包或模印等不平整现象。
在一些实施例中，如图16和图17所示，遮光层70设于显示模组100中的支撑层20的远离显示面板10的一侧，且覆盖光学器件30。遮光层60覆盖光学器件30，避免环境光对光学器件30产生干扰，提高光学器 件30的功效。
在示例性实施例中，如图16所示，支撑层20的支撑板21上的第一开孔K1在显示面板10上的正投影，位于遮光层30在显示面板10上的正投影的范围内。遮光层60覆盖光学器件30的同时，覆盖支撑层20中的第一过孔K1，从而保证第一过孔K1中通过的光线全部来自于光学器件30，避免环境光对光学器件30产生干扰，提高光学器件30的功效。
在示例性实施例中，如图17所示，在支撑层20的第一支撑部22包括多个第二开孔K2的情况下，多个第二开孔K2在显示面板10上的正投影，位于遮光层30在显示面板10上的正投影的范围内。遮光层60覆盖光学器件30的同时，覆盖缓冲层50中的第二过孔K2，从而保证第二过孔K2中通过的光线全部来自于光学器件30，避免环境光对光学器件30产生干扰，提高光学器件30的功效。
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 (20)

  1. 一种显示模组，包括：
    显示面板；
    支撑层，设于所述显示面板的非显示侧；所述支撑层包括支撑板和与所述支撑板连接的第一支撑部；
    其中，所述支撑板设有第一开孔，所述第一支撑部设于所述第一开孔内；所述第一支撑部的至少部分可透光；
    所述支撑板的靠近所述显示面板的侧面，与所述第一支撑部的靠近所述显示面板的侧面大致齐平；
    所述支撑层的厚度大致为10μm～200μm。
  2. 根据权利要求1所述的显示模组，其中，所述第一支撑部整体为透明材质；所述第一支撑部的垂直于所述显示面板的方向上的侧壁，与所述第一开孔的孔壁固定连接。
  3. 根据权利要求1或2所述的显示模组，其中，所述第一支撑部的材料包括超薄柔性玻璃或聚甲基丙烯酸甲酯；和/或，
    所述第一支撑部的光透过率大于或等于90％；和/或，
    所述第一支撑部的弹性模量大于或等于3Gpa。
  4. 根据权利要求2或3所述的显示模组，其中，所述支撑层还包括粘接部；
    所述粘接部设于所述第一支撑部和所述第一开孔的孔壁之间，所述支撑板和所述第一支撑部之间通过所述粘接部连接。
  5. 根据权利要求4所述的显示模组，其中，所述粘接部的材料包括遮光材料。
  6. 根据权利要求4或5所述的显示模组，其中，所述粘接部的材料包括单组分环氧胶；和/或，
    所述粘接部的粘度为10000cP～20000cP；和/或，
    所述第一支撑部和所述第一开孔的孔壁之间的间距为15μm～500μm。
  7. 根据权利要求1所述的显示模组，其中，所述第一支撑部包括多个支撑条，至少两个支撑条与所述第一开孔的孔壁连接；所述多个支撑条以及所述第一开孔的孔壁围成多个第二开孔。
  8. 根据权利要求7所述的显示模组，其中，所述多个支撑条以及所述第一开孔的孔壁连接，形成蜂窝状结构或网格状结构。
  9. 根据权利要求7或8所述的显示模组，其中，一个第二开孔在所述显示面板上的正投影呈正多边形、圆形或椭圆形。
  10. 根据权利要求7～9任一项所述的显示模组，其中，所述显示面板包括多个子像素；所述多个支撑条在所述显示面板上的正投影，与所述多个子像素的发光区相互错开。
  11. 根据权利要求10所述的显示模组，其中，所述支撑条的宽度，小于或等于相邻两个子像素的发光区之间的间距；和/或，
    一个第二开孔的面积，大于或等于一个子像素的发光区的面积。
  12. 根据权利要求1～11任一项所述的显示模组，还包括：
    缓冲层，设于所述支撑层靠近所述显示面板的一侧；所述缓冲层包括第二支撑部，所述第二支撑部可透光。
  13. 根据权利要求12所述的显示模组，其中，所述缓冲层整体为透明材质。
  14. 根据权利要求13所述的显示模组，其中，所述缓冲层的材料包括热塑性聚氨酯弹性体橡胶；和/或，
    所述缓冲层的光透过率大于或等于92％；和/或，
    所述缓冲层的弹性模量为0.1Gpa～0.15Gpa。
  15. 根据权利要求12所述的显示模组，其中，所述缓冲层设有第三开孔；所述第二支撑部设于所述第三开孔内。
  16. 根据权利要求15所述的显示模组，其中，所述第二支撑部的材料包括聚对苯二甲酸乙二醇酯；和/或，
    所述第二支撑部的光透过率大于或等于90％；和/或，
    所述第二支撑部的弹性模量为0.5Gpa～1.5Gpa。
  17. 根据权利要求15或16所述的显示模组，还包括：
    粘接层，设于所述缓冲层靠近所述显示面板的一侧；所述第二支撑部与所述粘接层粘接。
  18. 一种显示装置，包括：
    权利要求1～17任一项所述的显示模组；
    光学器件，设于所述显示模组的非显示侧。
  19. 根据权利要求18所述的显示装置，还包括：
    遮光层，设于所述显示模组中的支撑层的远离显示面板的一侧，且覆盖所述光学器件。
  20. 根据权利要求19所述的显示装置，其中，所述支撑层的支撑板上的第一开孔在所述显示面板上的正投影，位于所述遮光层在所述显示面板上的正投影的范围内；
    在所述支撑层的第一支撑部包括多个第二开孔的情况下，所述多个第二开孔在所述显示面板上的正投影，位于所述遮光层在所述显示面板上的正投影的范围内。
PCT/CN2022/089967 2022-04-28 2022-04-28 显示模组及显示装置 WO2023206259A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2022/089967 WO2023206259A1 (zh) 2022-04-28 2022-04-28 显示模组及显示装置
CN202280000963.4A CN117396800A (zh) 2022-04-28 2022-04-28 显示模组及显示装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/089967 WO2023206259A1 (zh) 2022-04-28 2022-04-28 显示模组及显示装置

Publications (1)

Publication Number Publication Date
WO2023206259A1 true WO2023206259A1 (zh) 2023-11-02

Family

ID=88516846

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/089967 WO2023206259A1 (zh) 2022-04-28 2022-04-28 显示模组及显示装置

Country Status (2)

Country Link
CN (1) CN117396800A (zh)
WO (1) WO2023206259A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208569647U (zh) * 2018-05-03 2019-03-01 东莞市美光达光学科技有限公司 一种用于屏幕下方的指纹识别模组
US20190197281A1 (en) * 2017-12-27 2019-06-27 Lg Display Co., Ltd. Fingerprint Sensing Display Apparatus
CN111767901A (zh) * 2020-07-31 2020-10-13 厦门天马微电子有限公司 显示装置
CN111999935A (zh) * 2020-08-27 2020-11-27 厦门天马微电子有限公司 显示模组及显示装置
WO2021227775A1 (zh) * 2020-05-09 2021-11-18 华为技术有限公司 电子设备及显示屏
CN113986037A (zh) * 2021-10-19 2022-01-28 武汉华星光电半导体显示技术有限公司 显示面板和移动终端

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190197281A1 (en) * 2017-12-27 2019-06-27 Lg Display Co., Ltd. Fingerprint Sensing Display Apparatus
CN208569647U (zh) * 2018-05-03 2019-03-01 东莞市美光达光学科技有限公司 一种用于屏幕下方的指纹识别模组
WO2021227775A1 (zh) * 2020-05-09 2021-11-18 华为技术有限公司 电子设备及显示屏
CN111767901A (zh) * 2020-07-31 2020-10-13 厦门天马微电子有限公司 显示装置
CN111999935A (zh) * 2020-08-27 2020-11-27 厦门天马微电子有限公司 显示模组及显示装置
CN113986037A (zh) * 2021-10-19 2022-01-28 武汉华星光电半导体显示技术有限公司 显示面板和移动终端

Also Published As

Publication number Publication date
CN117396800A (zh) 2024-01-12

Similar Documents

Publication Publication Date Title
US11360517B2 (en) Flexible display apparatus
ES2774312T3 (es) Pantalla con conjunto de sensores ultrasónicos en lado posterior
US10572747B2 (en) Display apparatus
US10503297B2 (en) Mobile terminal touch control display structure and manufacturing method thereof, mobile terminal
US9354476B2 (en) Window panel for a display apparatus
US9581754B2 (en) Liquid crystal display device
US11252835B2 (en) Bendable cover, bendable display module, and bendable terminal device
KR20170098373A (ko) 터치 스크린 패널 및 이를 포함하는 이동 단말기
US11163392B2 (en) Display device
CN101320142A (zh) 液晶显示器
KR20170066761A (ko) 커브드 표시장치 및 이의 제조방법
US20200218005A1 (en) Display device
WO2019114309A1 (zh) 显示面板、显示装置以及显示方法
US20220270522A1 (en) Electronic Devices With Deformation-Resistant Displays
JP6689727B2 (ja) バックライト装置、およびこれを備える表示装置
WO2022095670A1 (zh) 显示模组及其装配方法、显示装置
WO2023206259A1 (zh) 显示模组及显示装置
KR101463683B1 (ko) 액정표시장치
CN112180633A (zh) 显示模组及显示装置
KR102329182B1 (ko) 휴대 전자 기기용 커버 윈도우 및 이를 포함하는 휴대 전자 기기
CN114446169B (zh) 显示模组、显示模组的制作方法及显示装置
JP2017142902A (ja) 面光源装置、表示装置、及び電子機器
CN220570916U (zh) 显示设备
KR20150033142A (ko) 백라이트 유닛 및 이를 이용한 디스플레이 장치
KR102181824B1 (ko) 디스플레이 장치

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22939111

Country of ref document: EP

Kind code of ref document: A1