WO2020042518A1 - 柔性显示面板的弯折区构造 - Google Patents

柔性显示面板的弯折区构造 Download PDF

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Publication number
WO2020042518A1
WO2020042518A1 PCT/CN2019/070024 CN2019070024W WO2020042518A1 WO 2020042518 A1 WO2020042518 A1 WO 2020042518A1 CN 2019070024 W CN2019070024 W CN 2019070024W WO 2020042518 A1 WO2020042518 A1 WO 2020042518A1
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WIPO (PCT)
Prior art keywords
protrusions
organic layer
bending
display panel
flexible display
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2019/070024
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English (en)
French (fr)
Inventor
施杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
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 Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US16/477,885 priority Critical patent/US10974479B2/en
Publication of WO2020042518A1 publication Critical patent/WO2020042518A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating 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
    • G09F9/301—Indicating 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 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/0002—Lithographic processes using patterning methods other than those involving the exposure to radiation, e.g. by stamping
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
    • H10K77/10—Substrates, e.g. flexible substrates
    • H10K77/111—Flexible substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/022—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3475—Displays, monitors, TV-sets, computer screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/311—Flexible OLED
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24521—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24521—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface
    • Y10T428/24529—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface and conforming component on an opposite nonplanar surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24521—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface
    • Y10T428/24537—Parallel ribs and/or grooves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/2457—Parallel ribs and/or grooves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24612—Composite web or sheet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628—Nonplanar uniform thickness material
    • Y10T428/24669—Aligned or parallel nonplanarities

Definitions

  • the present invention relates to a bending region structure of a flexible display panel, and more particularly to a bending region structure of a flexible display panel in which protrusions are provided on an organic layer to reduce stress in the bending region.
  • the flexible display panel As the next generation mainstream display panel, the flexible display panel has attracted more and more attention.
  • the flexibility of the flexible display panel allows the screen to still display a complete picture when the screen is flexed at will.
  • Flexible display panels With small size and light weight, it can be used in computers, televisions, personal portable devices, etc.
  • the flexible display panel is composed of a display area and a non-display area.
  • the chip in the non-display area needs to be fixed to the back of the display panel.
  • the bending area (bending area) area) will bend 180 degrees.
  • each layer in the bending area bears a bending stress, and the long-term stretching will cause bending cracks between the film layers or inside the film layer, thereby reducing Device lifetime.
  • the main object of the present invention is to provide a bending region structure of a flexible display panel to prevent a bending crack from occurring in the bending region structure.
  • the present invention provides a bending area structure of a flexible display panel, which includes: a flexible substrate layer; a circuit layer provided on the flexible substrate layer; and a first organic layer provided on the substrate. On the circuit layer, a plurality of first protrusions are arranged on the upper surface of the first organic layer;
  • a shape of a side projection of the plurality of first protrusions is a wave shape, and a shape of an upper projection of the plurality of first protrusions is a long shape, and the long shape is parallel to a bending center line. direction;
  • the shape of the first projection of the plurality of first protrusions is selected from the group consisting of oval, square, trapezoid, or diamond.
  • the plurality of first protruding portions are formed by a nano-imprint method.
  • a density of the plurality of first protrusions near the bending centerline is greater than a density of the plurality of first protrusions far from the bending centerline.
  • the bent region structure further includes a second organic layer, the second organic layer is disposed on the first organic layer, and an upper surface of the second organic layer is arranged in a row. There are a plurality of second protrusions, and the elastic modulus of the second organic layer is greater than the elastic modulus of the first organic layer.
  • the bent region structure further includes a third organic layer, the third organic layer is disposed on the second organic layer, and an upper surface of the second organic layer is arranged There are a plurality of third protrusions, and the elastic modulus of the third organic layer is greater than the elastic modulus of the second organic layer.
  • the bent region structure further includes a second organic layer, the second organic layer is disposed on the first organic layer, and an upper surface of the second organic layer is arranged in a row.
  • the bent region structure further includes a third organic layer, the third organic layer is disposed on the second organic layer, and an upper surface of the third organic layer is arranged There are a plurality of third protrusions, and the density of the plurality of third protrusions is greater than the density of the plurality of second protrusions.
  • the plurality of second protrusions and / or the plurality of third protrusions are formed by a nano-imprint method, and the plurality of second protrusions and / or the The shape of the side projections of the plurality of third protrusions is a wave shape, and the shape of the plurality of second protrusions and / or the projections of the plurality of third protrusions is a long shape. The shape is parallel to the direction of the bending centerline.
  • the present invention further provides a bending area structure of a flexible display panel, which includes: a flexible substrate layer; a circuit layer provided on the flexible substrate layer; and a first organic layer provided on On the circuit layer, a plurality of first protrusions are arranged on an upper surface of the first organic layer.
  • a shape of a side projection of the plurality of first protrusions is a wave shape
  • a shape of an upper projection of the plurality of first protrusions is a long shape
  • the long shape The shape is parallel to the direction of a bending centerline.
  • a shape of the first projection of the plurality of first protrusions is selected from an ellipse, a square, a trapezoid, or a diamond.
  • the plurality of first protruding portions are formed by a nano-imprint method.
  • a density of the plurality of first protrusions near the bending centerline is greater than a density of the plurality of first protrusions far from the bending centerline.
  • the bent region structure further includes a second organic layer, the second organic layer is disposed on the first organic layer, and an upper surface of the second organic layer is arranged in a row. There are a plurality of second protrusions, and the elastic modulus of the second organic layer is greater than the elastic modulus of the first organic layer.
  • the bent region structure further includes a third organic layer, the third organic layer is disposed on the second organic layer, and an upper surface of the second organic layer is arranged There are a plurality of third protrusions, and the elastic modulus of the third organic layer is greater than the elastic modulus of the second organic layer.
  • the bent region structure further includes a second organic layer, the second organic layer is disposed on the first organic layer, and an upper surface of the second organic layer is arranged in a row.
  • the bent region structure further includes a third organic layer, the third organic layer is disposed on the second organic layer, and an upper surface of the third organic layer is arranged There are a plurality of third protrusions, and the density of the plurality of third protrusions is greater than the density of the plurality of second protrusions.
  • the plurality of second protrusions and / or the plurality of third protrusions are formed by a nano-imprint method, and the plurality of second protrusions and / or the The shape of the side projections of the plurality of third protrusions is a wave shape, and the shape of the plurality of second protrusions and / or the projections of the plurality of third protrusions is a long shape. The shape is parallel to the direction of the bending centerline.
  • the present invention can reduce bending stress by providing multiple protrusions on the organic layer to prevent bending cracks in the bending area structure, thereby improving flexibility. Display panel life.
  • FIG. 1 is a schematic diagram of a flexible display panel according to the present invention.
  • FIGS. 2A-2C are schematic diagrams of a method for manufacturing a bending region structure of a flexible display panel according to a first embodiment of the present invention.
  • FIG. 3 is a schematic perspective view of a bending region structure of the flexible display panel according to the first embodiment of the present invention.
  • FIG. 4 is a schematic side cross-sectional view of a bent area structure of a flexible display panel according to a second embodiment of the present invention.
  • FIG. 5 is a schematic side cross-sectional view of a bent area structure of a flexible display panel according to a third embodiment of the present invention.
  • FIG. 6 is a schematic side cross-sectional view of a bent area structure of a flexible display panel according to a fourth embodiment of the present invention.
  • FIG. 7A-7D are schematic top views of the first organic layer of the bending region structure of the flexible display panel according to the fifth to eighth embodiments of the present invention.
  • FIG. 1 is a schematic diagram of a flexible display panel of the present invention.
  • the flexible display panel 1 of the present invention has a bending region structure 100, and the bending region structure 100 can bend at a maximum of 180 degrees.
  • FIGS. 2A-2C are schematic diagrams of a method for manufacturing a flexure region structure of a flexible display panel according to a first embodiment of the present invention. Schematic illustration of the structure of the bending area.
  • the manufacturing method of the bending region structure 100 of the flexible display panel according to the first embodiment of the present invention includes the following steps:
  • a bending area of a flexible display panel is provided. area) structure 100, including a flexible substrate layer 10, a circuit layer 20, and a first organic layer 30, wherein the circuit layer 20 is disposed on the flexible substrate layer 10, and the first organic layer 30 is disposed on The circuit layer 20 is described above.
  • a nano-imprint head 2 is provided.
  • the lower surface of the nano-imprint head 2 has a predetermined shape, and the nano-imprint head 2 is pressed down to the first organic layer. 30's upper surface.
  • a shape corresponding to the preset shape is formed on the upper surface of the first organic layer 30, that is, a plurality of lines are formed on the upper surface of the first organic layer 30.
  • first projections 31 are formed on the upper surface of the first organic layer 30.
  • the first organic layer 30 is fabricated on the circuit layer 20 using, for example, a spin coating or inkjet printing (IJP) process.
  • the first organic layer 30 The thickness of 30 may be 0.5-5 micrometers (um), and the material of the organic layer is, for example, but not limited to, a series of resins such as acrylic resin (Acryl), epoxy resin (Epoxy), or polycarbonate (PC).
  • the plurality of first protruding portions 31 is preferably a long strip.
  • a shape of a side projection of the plurality of first protrusions 31 is a wave shape
  • a shape of an upper projection of the plurality of first protrusions 31 is a long shape
  • the long shape is parallel to The direction of a bending center line CL is shown in FIG. 3.
  • the bending area structure 100 of the flexible display panel when the bending area structure 100 of the flexible display panel is bent, especially when the bending is performed at 180 degrees, the bending area structure 100 is subjected to a bending stress through the plurality of The first protruding portion 31 can have an effect of reducing bending stress, and thus can prevent bending cracks between the film layers of the bending region structure 100 or inside the film layer, thereby improving the service life of the flexible display panel 1.
  • FIG. 4 is a schematic side sectional view of a bending region structure of a flexible display panel according to a second embodiment of the present invention.
  • the bending area structure of the second embodiment of the present invention is substantially the same as the first embodiment of the present invention, and therefore the same reference numerals are used.
  • the bending area structure 100b of the second embodiment of the present invention is the same as that of the first embodiment.
  • the bent area structure 100b of the second embodiment of the present invention further includes a second organic layer 40b and a third organic layer 50b, wherein the second organic layer 40b is disposed on the first On an organic layer 30b, a plurality of second protruding portions 41 are arranged on the upper surface of the second organic layer 40b, and the third organic layer 50b is provided on the second organic layer 40b. On the upper surface of the layer 50b, a plurality of third protruding portions 51 are arranged in line.
  • the plurality of second protrusions 41 and / or the plurality of third protrusions 51 may also be formed by a nano-imprint method, and the plurality of second protrusions 41 and / or A shape of a side projection of the plurality of third protruding portions 51 is a wave shape, and a shape of an upper projection of the plurality of second protruding portions 41 and / or the plurality of third protruding portions 51 is a long shape.
  • the strip shape is parallel to the direction of the bending center line CL.
  • the total thickness of the organic layer may be less than 5 micrometers (um), and the number of layers of the organic layer is not limited to three.
  • the elastic modulus of the organic layer nearer is set higher, that is, the elasticity of the second organic layer 40b is set higher.
  • the modulus is set to be greater than the elastic modulus of the first organic layer 30b, and the modulus of elasticity of the third organic layer 50b is set to be greater than the elastic modulus of 40b of the second organic layer, so that it can be further improved. The effect of reducing bending stress.
  • FIG. 5 is a schematic side sectional view of a bending region structure of a flexible display panel according to a third embodiment of the present invention.
  • the bending area structure of the third embodiment of the present invention is substantially the same as that of the second embodiment of the present invention, and therefore the same reference numerals are used.
  • the bending area structure 100c of the third embodiment of the present invention is the same as that of the second embodiment.
  • the main difference of the structure 100b is that the density of the plurality of second protrusions 41 is greater than the density of the plurality of first protrusions 31, and the density of the plurality of third protrusions 51 is greater than the density The density of the second protrusion 41.
  • the density of the protruding portion of the organic layer nearer is set higher, which can further improve the effect of reducing the bending stress. .
  • FIG. 6 is a schematic side cross-sectional view of a bent area structure of a flexible display panel according to a fourth embodiment of the present invention.
  • the bending area structure of the fourth embodiment of the present invention is substantially the same as that of the third embodiment of the present invention, and therefore the same reference numerals are used.
  • the bending area structure 100d of the fourth embodiment of the present invention is the same as that of the third embodiment.
  • the main difference of the structure 100c is that in each organic layer of this embodiment, the density of the plurality of protrusions closer to the bending centerline CL is greater than the plurality of first protrusions far from the bending centerline CL. Density.
  • a distance d1 between the two third protruding portions 51 near the bending centerline CL is smaller than two distances away from the bending centerline.
  • the distance between the third protrusions 51 that is, the density of the two first protrusions near the bending centerline CL is greater than that of the plurality of first protrusions far from the bending centerline. density.
  • FIGS. 7A-7D are schematic top views of the first organic layer of the bending region structure of the flexible display panels according to the fifth to eighth embodiments of the present invention.
  • the bending area structures of the fifth to eighth embodiments of the present invention are substantially the same as the first embodiment of the present invention, and therefore the same reference numerals are used.
  • the bending area structures of the fifth to eighth embodiments of the present invention are the same as those of the first embodiment.
  • the main difference of the bending area structure of the example is that the shape of the upper projection of the plurality of first protrusions 31a is an oval, square, trapezoid, or diamond arrangement.
  • the first protrusions 31a with a square shape are used as an example below. Instructions.
  • a plurality of first protrusions 31a are arranged in an array on the first organic layer 30e, and a distance d between the plurality of first protrusions 31a is the same. That is, the density is consistent.
  • the plurality of first protrusions 31a distributed in these arrays reduce the bending stress of the bending region structure 100e.
  • a plurality of first protruding portions 31a are arranged in an array on the first organic layer 30f, wherein the two first portions close to the bending center line CL
  • the distance d1 between the protrusions 31a is smaller than the distance between the two first protrusions 31a far from the bending centerline, that is, the density of the protrusions 31a near the bending centerline CL is greater than the distance from the
  • the density of the protruding portion 31a at the bending centerline can further reduce the bending stress of the bending zone structure 100f.
  • the seventh embodiment of the present invention is substantially similar to the fifth embodiment.
  • a plurality of first protrusions 31a are arranged in an array on the first organic layer 30g, and the first protrusions 31a are arranged between the plurality of first protrusions 31a.
  • the distance d is the same, that is, the density is the same, but the positions of the plurality of first protrusions 31a in adjacent rows are staggered to further improve the effect of dispersing the bending stress of the bending region structure 100g.
  • the eighth embodiment of the present invention is substantially similar to the sixth embodiment.
  • a plurality of first protrusions 31a are arranged in an array on the first organic layer 30h.
  • the distance d1 between the two first protrusions 31a is smaller than the distance between the two first protrusions 31a far from the bending centerline, that is, the distance between the protrusions 31a near the bending centerline CL.
  • the density is greater than the density of the protrusions 31a far from the bending centerline, but the positions of the plurality of first protrusions 31a of adjacent rows are staggered to further enhance and disperse the bending stress of the bending zone structure 100h Effect.
  • the bending area structure 100 of the flexible display panel when the bending area structure 100 of the flexible display panel is bent, especially when the bending is performed at 180 degrees, the bending area structure 100 is subjected to a bending stress.
  • Providing multiple protrusions on the organic layer can have the effect of reducing bending stress, and thus can prevent bending cracks between the film layers of the bending region structure 100 or inside the film layer, thereby improving the flexibility of the flexible display panel 1.
  • Service life since the stress is greater near or above the bend region structure 100, by increasing the elastic modulus of the organic layer closer to the bend region structure 100, or by increasing near the bend region
  • the density of the plurality of protrusions above the structure 100 or the bending centerline CL can further enhance the effect of reducing bending stress.

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Abstract

一种柔性显示面板的弯折区构造(100)，其包含一柔性基板层(10)、一线路层(20)及至少一有机层(30)，其中线路层(20)设于柔性基板层(10)上，至少一有机层(30)设于线路层(20)上，至少一有机层(30)的上表面排列设置有多个突出部(31)。当柔性显示面板的弯折区构造(100)弯折时，弯折区构造(100)承受一弯折应力，通过多个突出部(31)可以产生减少弯折应力的效果，防止弯折区构造(100)出现弯折裂纹，从而提高柔性显示面板的使用寿命。

Description

柔性显示面板的弯折区构造 技术领域
本发明涉及一种柔性显示面板的弯折区构造，特别是涉及一种在有机层上设置突出部以减少弯折区应力的柔性显示面板的弯折区构造。
 背景技术
柔性显示面板(Flexible panel)作为下一代的主流显示面板已越来越受到大家的关注，柔性显示面板的可弯曲性使得屏幕在像纸张随意弯折时，仍然可以显示完整的画面，柔性显示面板具有体积小、重量轻等优点，可用于电脑、电视、个人便携设备等。
柔性显示面板是由显示区域和非显示区域组成，在制备窄边框或是全面屏时，需要将非显示区域的芯片固定到显示面板的背面，此时弯折区(bending area)会进行180度的弯折。当弯折区进行180度的弯折时，弯折区中的各膜层承承受一弯折应力，而且长时间的拉伸会导致各膜层间或膜层内部出现弯折裂纹，从而降低器件使用寿命。
因此，有必要提供一种改良的柔性显示面板的弯折区构造，以解决上述技术问题。
 技术问题
本发明的主要目的是提供一种柔性显示面板的弯折区构造，以防止弯折区构造出现弯折裂纹。
 技术解决方案
为达上述目的，本发明提供一种柔性显示面板的弯折区构造，其包含：一柔性基板层；一线路层，设于所述柔性基板层上；及一第一有机层，设于所述线路层上，所述第一有机层的上表面排列设置有多个第一突出部；
所述多个第一突出部的侧投影的形状呈一波浪状，所述多个第一突出部的上投影的形状呈一长条状，所述长条状平行于一弯折中心线的方向；
所述多个第一突出部的上投影的形状选自椭圆形、方形、梯形或菱形。
在本发明的一实施例中，所述多个第一突出部是通过纳米压印方式形成。
在本发明的一实施例中，靠近所述弯折中心线的所述多个第一突出部的密度大于远离所述弯折中心线处的所述多个第一突出部的密度。
在本发明的一实施例中，所述弯折区构造还包含一第二有机层，所述第二有机层设于所述第一有机层上，所述第二有机层的上表面排列设置有多个第二突出部，所述第二有机层的弹性模数大于所述第一有机层的弹性模数。
在本发明的一实施例中，所述弯折区构造还包含一第三有机层，所述第三有机层设于所述第二有机层上，所述第二有机层的上表面排列设置有多个第三突出部，所述第三有机层的弹性模数大于所述第二有机层的弹性模数。
在本发明的一实施例中，所述弯折区构造还包含一第二有机层，所述第二有机层设于所述第一有机层上，所述第二有机层的上表面排列设置有多个第二突出部，所述多个第二突出部的密度大于所述多个第一突出部的密度。
在本发明的一实施例中，所述弯折区构造还包含一第三有机层，所述第三有机层设于所述第二有机层上，所述第三有机层的上表面排列设置有多个第三突出部，所述多个第三突出部的密度大于所述多个第二突出部的密度。
在本发明的一实施例中，所述多个第二突出部及/或所述多个第三突出部是通过纳米压印方式形成，并且所述多个第二突出部及/或所述多个第三突出部的侧投影的形状呈一波浪状，所述多个第二突出部及/或所述多个第三突出部的上投影的形状呈一长条状，所述长条状平行于所述弯折中心线的方向。
为达上述目的，本发明另提供一种柔性显示面板的弯折区构造，其包含：一柔性基板层；一线路层，设于所述柔性基板层上；及一第一有机层，设于所述线路层上，所述第一有机层的上表面排列设置有多个第一突出部。
在本发明的一实施例中，所述多个第一突出部的侧投影的形状呈一波浪状，所述多个第一突出部的上投影的形状呈一长条状，所述长条状平行于一弯折中心线的方向。
在本发明的一实施例中，所述多个第一突出部的上投影的形状选自椭圆形、方形、梯形或菱形。
在本发明的一实施例中，所述多个第一突出部是通过纳米压印方式形成。
在本发明的一实施例中，靠近所述弯折中心线的所述多个第一突出部的密度大于远离所述弯折中心线处的所述多个第一突出部的密度。
在本发明的一实施例中，所述弯折区构造还包含一第二有机层，所述第二有机层设于所述第一有机层上，所述第二有机层的上表面排列设置有多个第二突出部，所述第二有机层的弹性模数大于所述第一有机层的弹性模数。
在本发明的一实施例中，所述弯折区构造还包含一第三有机层，所述第三有机层设于所述第二有机层上，所述第二有机层的上表面排列设置有多个第三突出部，所述第三有机层的弹性模数大于所述第二有机层的弹性模数。
在本发明的一实施例中，所述弯折区构造还包含一第二有机层，所述第二有机层设于所述第一有机层上，所述第二有机层的上表面排列设置有多个第二突出部，所述多个第二突出部的密度大于所述多个第一突出部的密度。
在本发明的一实施例中，所述弯折区构造还包含一第三有机层，所述第三有机层设于所述第二有机层上，所述第三有机层的上表面排列设置有多个第三突出部，所述多个第三突出部的密度大于所述多个第二突出部的密度。
在本发明的一实施例中，所述多个第二突出部及/或所述多个第三突出部是通过纳米压印方式形成，并且所述多个第二突出部及/或所述多个第三突出部的侧投影的形状呈一波浪状，所述多个第二突出部及/或所述多个第三突出部的上投影的形状呈一长条状，所述长条状平行于所述弯折中心线的方向。
 有益效果
相较于现有的柔性显示面板的弯折区构造，本发明通过在有机层上设置多个突出部可以产生减少弯折应力的效果，以防止弯折区构造出现弯折裂纹，从而提高柔性显示面板的使用寿命。
 附图说明
图1：本发明的柔性显示面板的示意图。
图2A-2C：本发明第一实施例的柔性显示面板的弯折区构造的制造方法示意图。
图3：本发明第一实施例的柔性显示面板的弯折区构造的立体示意图。
图4：本发明第二实施例的柔性显示面板的弯折区构造的侧剖面示意图。
图5：本发明第三实施例的柔性显示面板的弯折区构造的侧剖面示意图。
图6：本发明第四实施例的柔性显示面板的弯折区构造的侧剖面示意图。
图7A-7D：本发明第五至第八实施例的柔性显示面板的弯折区构造的第一有机层的上视示意图。
 本发明的实施方式
为让本发明上述目的、特征及优点更明显易懂，下文特举本发明较佳实施例，并配合附图，作详细说明。再者，本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参照附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。
请参照图1所示，图1是本发明的柔性显示面板的示意图。本发明的柔性显示面板1具有一弯折区构造100，所述弯折区构造100可作出最大180度的弯折。
请参照图2A-2C及图3所示，图2A-2C是本发明第一实施例的柔性显示面板的弯折区构造的制造方法示意图，图3是本发明第一实施例的柔性显示面板的弯折区构造的立体示意图。本发明第一实施例的柔性显示面板的弯折区构造100的制造方法包含以下步骤：
首先，如图2A所示，提供一柔性显示面板的弯折区(bending area)构造100，包含一柔性基板层10、一线路层20及一第一有机层30，其中所述线路层20设于所述柔性基板层10上，所述第一有机层30设于所述线路层20上。
接着，如图2B所示，提供一纳米压印头2，所述纳米压印头2的下表面具有一预设形状，并将所述纳米压印头2下压至所述第一有机层30的上表面。
最后，如图2C所示，在所述第一有机层30的上表面上形成所述预设形状所对应的形状，也就是在所述第一有机层30的上表面上形成排列设置的多个第一突出部31。
在本实施例中，所述第一有机层30例如使用旋转涂布(spin coating)或喷墨打印(Ink Jet Printing; IJP)等工艺制作在所述线路层20上，所述第一有机层30的厚度可为0.5~5微米(um)，所述有机层的材料例如但不限于丙烯酸树脂(Acryl)、环氧树脂(Epoxy)或聚碳酸酯(PC)等系列的树脂。
在本实施例中，所述多个第一突出部31优选是一长条状。详细来说，所述多个第一突出部31的侧投影的形状呈一波浪状，所述多个第一突出部31的上投影的形状呈一长条状，所述长条状平行于一弯折中心线CL的方向，如图3所示。
在本实施例中，当所述柔性显示面板的弯折区构造100弯折时，特别是进行180度的弯折时，所述弯折区构造100承受一弯折应力，通过所述多个第一突出部31可以产生减少弯折应力的效果，因此可防止所述弯折区构造100各膜层间或膜层内部出现弯折裂纹，从而提高所述柔性显示面板1的使用寿命。
请参照图4所示，图4是本发明第二实施例的柔性显示面板的弯折区构造的侧剖面示意图。本发明第二实施例的弯折区构造与本发明第一实施例大致相同，因此沿用相同的标记符号，但本发明第二实施例的弯折区构造100b与第一实施例的弯折区构造100的主要不同之处在于：本发明第二实施例的弯折区构造100b还包含一第二有机层40b及一第三有机层50b，其中所述第二有机层40b设于所述第一有机层30b上，所述第二有机层40b的上表面排列设置有多个第二突出部41，所述第三有机层50b设于所述第二有机层40b上，所述第三有机层50b的上表面排列设置有多个第三突出部51。
在本实施例中，所述多个第二突出部41及/或所述多个第三突出部51也可以通过纳米压印方式形成，并且所述多个第二突出部41及/或所述多个第三突出部51的侧投影的形状呈一波浪状，所述多个第二突出部41及/或所述多个第三突出部51的上投影的形状呈一长条状，所述长条状平行于所述弯折中心线CL的方向。
在本实施例中，由于有机层数量增加，且每一有机层都具有多个突出部，因此可进一步提升减少弯折应力的效果。
在本实施例中，所述有机层的总厚度可小于5微米(um)，所述有机层的层数也不限于3层。
优选地，由于越靠近所述弯折区构造100b的上方的弯折应力越大，因此将越近上方的有机层的弹性模数设置越高，也就是将所述第二有机层40b的弹性模数设成大于所述第一有机层30b的弹性模数，所述第三有机层50b的弹性模数设成大于所述第二有机层的40b的弹性模数，如此又可再进一步提升减少弯折应力的效果。
请参照图5所示，图5是本发明第三实施例的柔性显示面板的弯折区构造的侧剖面示意图。本发明第三实施例的弯折区构造与本发明第二实施例大致相同，因此沿用相同的标记符号，但本发明第三实施例的弯折区构造100c与第二实施例的弯折区构造100b的主要不同之处在于：所述多个第二突出部41的密度大于所述多个第一突出部31的密度，及所述多个第三突出部51的密度大于所述多个第二突出部41的密度。
在本实施例中，由于越靠近所述弯折区构造100b的上方的弯折应力越大，因此将越近上方的有机层的突出部密度设置越高，可进一步提升减少弯折应力的效果。
请参照图6所示，图6是本发明第四实施例的柔性显示面板的弯折区构造的侧剖面示意图。本发明第四实施例的弯折区构造与本发明第三实施例大致相同，因此沿用相同的标记符号，但本发明第四实施例的弯折区构造100d与第三实施例的弯折区构造100c的主要不同之处在于：在本实施例的各有机层中，越靠近弯折中心线CL的多个突出部的密度大于远离所述弯折中心线CL处的多个第一突出部的密度。
如图6所示，以第三有机层50d为例，靠近所述弯折中心线CL的所述两个第三突出部51之间的距离d1小于远离所述弯折中心线处的两个第三突出部51之间的距离，也就是靠近所述弯折中心线CL的所述两个第一突出部的密度大于远离所述弯折中心线处的所述多个第一突出部的密度。
在本实施例中，由于越靠近所述弯折区构造100b的中央的弯折应力越大，因此将越近中央的有机层的突出部密度设置越高，可进一步提升减少弯折应力的效果。
请参照图7A-7D所示，图7A-7D是本发明第五至第八实施例的柔性显示面板的弯折区构造的第一有机层的上视示意图。本发明第五至第八实施例的弯折区构造与本发明第一实施例大致相同，因此沿用相同的标记符号，但本发明第五至第八实施例的弯折区构造与第一实施例的弯折区构造的主要不同之处分别在于：多个第一突出部31a的上投影的形状是椭圆形、方形、梯形或菱形的排列，以下以方形的第一突出部31a为例进行说明。
如图7A所示，在本发明第五实施例中，多个第一突出部31a以阵列方式排列在第一有机层30e上，所述多个第一突出部31a之间的距离d一致，也就是密度一致。通过这些阵列分布的所述多个第一突出部31a来减少所述弯折区构造100e的弯折应力。
如图7B所示，在本发明第六实施例中，多个第一突出部31a以阵列方式排列在第一有机层30f上，其中靠近所述弯折中心线CL的所述两个第一突出部31a之间的距离d1小于远离所述弯折中心线处的两个第一突出部31a之间的距离，也就是靠近所述弯折中心线CL的突出部31a的密度大于远离所述弯折中心线处的突出部31a的密度，因此可进一步减少所述弯折区构造100f的弯折应力。
如图7C所示，本发明第七实施例与第五实施例大致相似，多个第一突出部31a以阵列方式排列在第一有机层30g上，所述多个第一突出部31a之间的距离d一致，也就是密度一致，但相邻行的所述多个第一突出部31a位置交错设置，以进一步提升分散所述弯折区构造100g的弯折应力的效果。
如图7D所示，本发明第八实施例与第六实施例大致相似，多个第一突出部31a以阵列方式排列在第一有机层30h上，其中靠近所述弯折中心线CL的所述两个第一突出部31a之间的距离d1小于远离所述弯折中心线处的两个第一突出部31a之间的距离，也就是靠近所述弯折中心线CL的突出部31a的密度大于远离所述弯折中心线处的突出部31a的密度，但相邻行的所述多个第一突出部31a位置交错设置，以进一步提升分散所述弯折区构造100h的弯折应力的效果。
综上所述，在本发明中，当所述柔性显示面板的弯折区构造100弯折时，特别是进行180度的弯折时，所述弯折区构造100承受一弯折应力，通过在有机层上设置多个突出部可以产生减少弯折应力的效果，因此可防止所述弯折区构造100各膜层间或膜层内部出现弯折裂纹，从而提高所述柔性显示面板1的使用寿命。此外，由于越靠近所述弯折区构造100上方或中央的应力越大，因此通过提高越靠近所述弯折区构造100上方的有机层的弹性模数，或者通过提高靠近所述弯折区构造100上方或所述弯折中心线CL的所述多个突出部的密度，可进一步提升减少弯折应力的效果。
本发明已由上述相关实施例加以描述，然而上述实施例仅为实施本发明的范例。必需指出的是，已公开的实施例并未限制本发明的范围。相反地，包含于权利要求书的精神及范围的修改及均等设置均包括于本发明的范围内。

Claims (18)

  1. 一种柔性显示面板的弯折区构造，其包含：
    一柔性基板层；
    一线路层，设于所述柔性基板层上；及
    一第一有机层，设于所述线路层上，所述第一有机层的上表面排列设置有多个第一突出部；所述多个第一突出部的侧投影的形状呈一波浪状，所述多个第一突出部的上投影的形状呈一长条状，所述长条状平行于一弯折中心线的方向；所述多个第一突出部的上投影的形状选自椭圆形、方形、梯形或菱形。
  2. 如权利要求1所述的柔性显示面板的弯折区构造，其中所述多个第一突出部是通过纳米压印方式形成。
  3. 如权利要求1所述的柔性显示面板的弯折区构造，其中靠近所述弯折中心线的所述多个第一突出部的密度大于远离所述弯折中心线处的所述多个第一突出部的密度。
  4. 如权利要求1所述的柔性显示面板的弯折区构造，其中所述弯折区构造还包含一第二有机层，所述第二有机层设于所述第一有机层上，所述第二有机层的上表面排列设置有多个第二突出部，所述第二有机层的弹性模数大于所述第一有机层的弹性模数。
  5. 如权利要求4所述的柔性显示面板的弯折区构造，其中所述弯折区构造还包含一第三有机层，所述第三有机层设于所述第二有机层上，所述第二有机层的上表面排列设置有多个第三突出部，所述第三有机层的弹性模数大于所述第二有机层的弹性模数。
  6. 如权利要求1所述的柔性显示面板的弯折区构造，其中所述弯折区构造还包含一第二有机层，所述第二有机层设于所述第一有机层上，所述第二有机层的上表面排列设置有多个第二突出部，所述多个第二突出部的密度大于所述多个第一突出部的密度。
  7. 如权利要求6所述的柔性显示面板的弯折区构造，其中所述弯折区构造还包含一第三有机层，所述第三有机层设于所述第二有机层上，所述第三有机层的上表面排列设置有多个第三突出部，所述多个第三突出部的密度大于所述多个第二突出部的密度。
  8. 如权利要求7所述的柔性显示面板的弯折区构造，其中所述多个第二突出部及/或所述多个第三突出部是通过纳米压印方式形成，并且所述多个第二突出部及/或所述多个第三突出部的侧投影的形状呈一波浪状，所述多个第二突出部及/或所述多个第三突出部的上投影的形状呈一长条状，所述长条状平行于所述弯折中心线的方向。
  9. 一种柔性显示面板的弯折区构造，其包含：
    一柔性基板层；
    一线路层，设于所述柔性基板层上；及
    一第一有机层，设于所述线路层上，所述第一有机层的上表面排列设置有多个第一突出部。
  10. 如权利要求9所述的柔性显示面板的弯折区构造，其中所述多个第一突出部的侧投影的形状呈一波浪状，所述多个第一突出部的上投影的形状呈一长条状，所述长条状平行于一弯折中心线的方向。
  11. 如权利要求9所述的柔性显示面板的弯折区构造，其中所述多个第一突出部的上投影的形状选自椭圆形、方形、梯形或菱形。
  12. 如权利要求9所述的柔性显示面板的弯折区构造，其中所述多个第一突出部是通过纳米压印方式形成。
  13. 如权利要求10或11所述的柔性显示面板的弯折区构造，其中靠近所述弯折中心线的所述多个第一突出部的密度大于远离所述弯折中心线处的所述多个第一突出部的密度。
  14. 如权利要求10所述的柔性显示面板的弯折区构造，其中所述弯折区构造还包含一第二有机层，所述第二有机层设于所述第一有机层上，所述第二有机层的上表面排列设置有多个第二突出部，所述第二有机层的弹性模数大于所述第一有机层的弹性模数。
  15. 如权利要求14所述的柔性显示面板的弯折区构造，其中所述弯折区构造还包含一第三有机层，所述第三有机层设于所述第二有机层上，所述第二有机层的上表面排列设置有多个第三突出部，所述第三有机层的弹性模数大于所述第二有机层的弹性模数。
  16. 如权利要求10所述的柔性显示面板的弯折区构造，其中所述弯折区构造还包含一第二有机层，所述第二有机层设于所述第一有机层上，所述第二有机层的上表面排列设置有多个第二突出部，所述多个第二突出部的密度大于所述多个第一突出部的密度。
  17. 如权利要求16所述的柔性显示面板的弯折区构造，其中所述弯折区构造还包含一第三有机层，所述第三有机层设于所述第二有机层上，所述第三有机层的上表面排列设置有多个第三突出部，所述多个第三突出部的密度大于所述多个第二突出部的密度。
  18. 如权利要求17所述的柔性显示面板的弯折区构造，其中所述多个第二突出部及/或所述多个第三突出部是通过纳米压印方式形成，并且所述多个第二突出部及/或所述多个第三突出部的侧投影的形状呈一波浪状，所述多个第二突出部及/或所述多个第三突出部的上投影的形状呈一长条状，所述长条状平行于所述弯折中心线的方向。
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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109036141A (zh) * 2018-08-29 2018-12-18 武汉华星光电技术有限公司 柔性显示面板的弯折区构造
CN109710107A (zh) * 2018-12-24 2019-05-03 武汉华星光电技术有限公司 一种显示装置
CN109712530B (zh) * 2018-12-28 2022-06-17 武汉天马微电子有限公司 柔性显示装置及其制备方法
CN109817097A (zh) * 2019-01-31 2019-05-28 武汉华星光电半导体显示技术有限公司 柔性显示面板
CN111613130B (zh) * 2019-02-25 2022-03-11 昆山工研院新型平板显示技术中心有限公司 显示基板及其制作方法、显示面板
CN111816083B (zh) * 2020-08-17 2022-07-19 京东方科技集团股份有限公司 一种柔性显示模组、柔性显示装置以及制作方法
KR20220060605A (ko) * 2020-11-04 2022-05-12 삼성디스플레이 주식회사 표시 장치
CN113035058B (zh) * 2021-02-23 2024-01-23 合肥维信诺科技有限公司 一种显示面板、显示面板的制作方法及显示装置
CN113068380B (zh) * 2021-03-26 2022-08-05 武汉华星光电半导体显示技术有限公司 显示面板及显示装置
CN113851520B (zh) * 2021-11-29 2022-04-22 荣耀终端有限公司 显示面板及其制作方法、终端设备
CN114267810B (zh) * 2021-12-15 2023-11-28 深圳市华星光电半导体显示技术有限公司 显示面板及其制备方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106328599A (zh) * 2016-10-27 2017-01-11 上海天马微电子有限公司 柔性显示装置
CN206312943U (zh) * 2016-12-09 2017-07-07 信利（惠州）智能显示有限公司 阻隔膜、oled器件及显示器
CN107104200A (zh) * 2017-04-27 2017-08-29 上海天马微电子有限公司 柔性显示面板及柔性显示装置
CN107578707A (zh) * 2017-10-20 2018-01-12 上海天马微电子有限公司 柔性显示面板及显示装置
CN207264694U (zh) * 2017-08-28 2018-04-20 云谷（固安）科技有限公司 一种柔性显示面板、显示装置
KR20180047603A (ko) * 2016-10-31 2018-05-10 엘지디스플레이 주식회사 폴더블 표시 장치
KR20180079093A (ko) * 2016-12-30 2018-07-10 엘지디스플레이 주식회사 커버 윈도우 및 이를 포함한 폴더블 표시 장치
CN109036141A (zh) * 2018-08-29 2018-12-18 武汉华星光电技术有限公司 柔性显示面板的弯折区构造

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009034926A (ja) * 2007-08-02 2009-02-19 Sumitomo Electric Ind Ltd 樹脂パターン形成方法
CN103985321B (zh) * 2014-05-29 2018-03-27 上海天马微电子有限公司 一种柔性显示面板及其制作方法及柔性显示装置
KR102455724B1 (ko) * 2016-04-21 2022-10-19 삼성디스플레이 주식회사 플렉서블 표시 장치
CN106252380B (zh) * 2016-08-31 2020-04-03 上海天马有机发光显示技术有限公司 柔性显示面板及装置
CN206610569U (zh) * 2017-04-01 2017-11-03 武汉天马微电子有限公司 一种柔性显示面板及柔性显示装置
CN107527556B (zh) * 2017-08-31 2020-12-01 上海天马微电子有限公司 柔性显示面板、显示装置及柔性显示面板的成型方法
CN108230910A (zh) * 2018-01-26 2018-06-29 武汉华星光电半导体显示技术有限公司 一种复合胶材结构和显示屏
US10777755B2 (en) 2018-01-26 2020-09-15 Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. Compound adhesive structure and a display panel
CN108461630B (zh) * 2018-03-03 2022-08-16 昆山国显光电有限公司 柔性显示基板、显示面板、显示装置及其制造方法
CN108428731B (zh) * 2018-05-17 2021-01-01 武汉华星光电半导体显示技术有限公司 柔性oled显示面板及柔性oled显示装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106328599A (zh) * 2016-10-27 2017-01-11 上海天马微电子有限公司 柔性显示装置
KR20180047603A (ko) * 2016-10-31 2018-05-10 엘지디스플레이 주식회사 폴더블 표시 장치
CN206312943U (zh) * 2016-12-09 2017-07-07 信利（惠州）智能显示有限公司 阻隔膜、oled器件及显示器
KR20180079093A (ko) * 2016-12-30 2018-07-10 엘지디스플레이 주식회사 커버 윈도우 및 이를 포함한 폴더블 표시 장치
CN107104200A (zh) * 2017-04-27 2017-08-29 上海天马微电子有限公司 柔性显示面板及柔性显示装置
CN207264694U (zh) * 2017-08-28 2018-04-20 云谷（固安）科技有限公司 一种柔性显示面板、显示装置
CN107578707A (zh) * 2017-10-20 2018-01-12 上海天马微电子有限公司 柔性显示面板及显示装置
CN109036141A (zh) * 2018-08-29 2018-12-18 武汉华星光电技术有限公司 柔性显示面板的弯折区构造

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