WO2020206971A1 - 可拉伸显示面板及其制备方法、显示装置 - Google Patents

可拉伸显示面板及其制备方法、显示装置 Download PDF

Info

Publication number
WO2020206971A1
WO2020206971A1 PCT/CN2019/111748 CN2019111748W WO2020206971A1 WO 2020206971 A1 WO2020206971 A1 WO 2020206971A1 CN 2019111748 W CN2019111748 W CN 2019111748W WO 2020206971 A1 WO2020206971 A1 WO 2020206971A1
Authority
WO
WIPO (PCT)
Prior art keywords
sub
polyimide substrate
polyimide
wire
substrate
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/CN2019/111748
Other languages
English (en)
French (fr)
Inventor
王涛
贾松霖
李旭娜
李亚龙
翟峰
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.)
Yungu Guan Technology Co Ltd
Original Assignee
Yungu Guan 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 Yungu Guan Technology Co Ltd filed Critical Yungu Guan Technology Co Ltd
Publication of WO2020206971A1 publication Critical patent/WO2020206971A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/20—Changing the shape of the active layer in the devices, e.g. patterning
    • H10K71/221—Changing the shape of the active layer in the devices, e.g. patterning by lift-off techniques
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/80—Manufacture or treatment specially adapted for the organic devices covered by this subclass using temporary substrates
    • 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
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • This application relates to the field of display technology, and in particular to a stretchable display panel, a preparation method thereof, and a stretchable display device.
  • the stretching of the device there are two ways to realize the stretching of the device, one is to realize the stretching function through the electrode material that can be stretched by itself, such as the composite material of polydimethylsiloxane and graphene or nano silver wire; the other is By patterning non-stretchable metal materials.
  • the stretching ability of the first scheme is strong enough, but the electrical performance cannot meet the application of high-precision instruments.
  • the second scheme also has problems with the device structure that realizes the stretching ability through patterning. Because the patterned electrode circuit requires space, Therefore, the degree of integration cannot be improved, and polyimide is used as the substrate of the metal wire to achieve tensile properties through the patterning of polyimide, but the patterning of polyimide can be achieved by laser laser or exposure and development. There are few types of polyimide for exposure and development, and the production thickness is thin, and it cannot support high-temperature processes, or there are difficulties in laser stripping, so laser lasers are used.
  • the working method of laser laser is to use laser to remove all polyimide in non-wire area, but it has the defects of long processing time and shortened laser life.
  • This application mainly provides a stretchable display panel, a preparation method thereof, and a stretchable display device. It overcomes the defects of long processing time and shortened laser life in the laser laser method.
  • an embodiment of the present application provides a stretchable display panel, and the stretchable display panel includes:
  • a polyimide substrate includes a plurality of first sub polyimide substrates, a plurality of second sub polyimide substrates, and at least one third sub polyimide substrate;
  • a first wire, the first wire is located on the first sub-polyimide substrate and the second sub-polyimide substrate;
  • At least one first device the first device is located on the first sub-polyimide substrate, the first wire is electrically connected to the first device, and the first devices are electrically connected through the first wire;
  • Adjacent first sub-polyimide substrates are connected by second sub-polyimide substrates to form a closed area, and the third sub-polyimide substrate is located in the closed area; the first sub-polyimide substrate The substrate, the second sub-polyimide substrate, the first device and the first wire constitute a first device group.
  • an embodiment of the present application provides a stretchable display device, which includes a stretchable display panel
  • the stretchable display panel includes:
  • a polyimide substrate includes a plurality of first sub polyimide substrates, a plurality of second sub polyimide substrates, and at least one third sub polyimide substrate;
  • a first wire the first wire being located on the first sub-polyimide substrate and the second sub-polyimide substrate;
  • At least one first device the first device is located on the first sub-polyimide substrate, the first wire is electrically connected to the first device, and the first device passes through the The first wire is electrically connected;
  • the adjacent first sub-polyimide substrates are connected by the second sub-polyimide substrates to form a closed area, and the third sub-polyimide substrate is located in the closed area ;
  • the first sub-polyimide substrate, the second sub-polyimide substrate, the first device, and the first wire form a first device group.
  • the present application also provides a method for manufacturing a stretchable display panel, including:
  • the present application provides a stretchable display panel, a preparation method thereof, and a stretchable display device,
  • the stretchable display panel of the present application can shorten the processing time of the laser laser, prolong the service life of the laser, and increase the productivity.
  • a new set of device groups are formed on the reserved polyimide substrate pattern, which solves the problem of the inability to fabricate high-density devices due to the large space required for wire and substrate patterning in order to achieve the stretching function. This method can effectively improve the precision of the device, and its application in the display can significantly improve the PPI.
  • the new device group formed on the reserved polyimide substrate pattern can be located on the upper and lower sides opposite to the original device group, forming a double-sided display body, and at the same time, it can increase the rigidity of the device substrate, which is equivalent to A layer of polyimide substrate is added on one side of the original integrated device, which is beneficial to protect the device and is not easy to damage.
  • FIG. 1 is a schematic structural diagram of an embodiment of a stretchable display panel provided by the present application.
  • FIG. 2 is a schematic diagram of a cross-sectional structure of an embodiment of a stretchable display panel provided by the present application
  • FIG. 3 is a schematic structural view of adding a second wire, a second device, and a fifth sub-polyimide substrate according to the display panel shown in FIG. 1;
  • FIG. 4 is a cross-sectional structure of adding a first intermediate layer, an elastomer, a fourth sub-polyimide substrate, a second wire, a second device, and a fifth sub-polyimide substrate according to the display panel shown in FIG. 2 Schematic diagram
  • FIG. 5 is a schematic diagram showing the structure of the first device group and the second device group being reversely arranged according to the display panel shown in FIG. 4, and a second intermediate layer and a sixth sub-polyimide substrate are added, and the first intermediate layer is omitted ;
  • FIG. 6 is a schematic cross-sectional structure diagram of adding an elastic body according to the display panel shown in FIG. 5;
  • FIG. 7 is a schematic flowchart of a method for preparing a stretchable display panel provided by the present application.
  • an embodiment of the present application provides a stretchable display panel including a plurality of first sub-polyimide substrates 11, first wires 21, first devices 31, and a plurality of second sub-polyimide substrates.
  • the first device 31 may specifically be an optoelectronic device or a sensor device constituting a display panel, which is not specifically limited here.
  • the first sub-polyimide substrate 11 and the second sub-polyimide substrate 12 are connected to form a closed area.
  • the third sub-polyimide substrate 13 is an independent polyimide substrate, and the third sub-polyimide substrate 13 is located in the closed area.
  • a first wire 21 and a first device 31 are provided on the upper surface of the first sub-polyimide substrate 11.
  • a first wire 21 is provided on the second sub-polyimide substrate 12.
  • the first device 31 is located above the first wire 21.
  • the first wire 21 is electrically connected to the first device 31, and the first devices 31 are electrically connected through the first wire 21. That is, a part of the first wire 21 is located on the first sub-polyimide substrate 11, and the other part is located on the second sub-polyimide substrate 12.
  • the size of the third polyimide substrate 13 can be adjusted according to actual conditions to ensure that the stretching performance of the device is not affected.
  • the first sub-polyimide substrate 11 with the first device 31 thereon is an island-shaped polyimide substrate
  • the second sub-polyimide substrate 12 is a bridge-shaped polyimide substrate. Imine substrate.
  • the size of the first device 31 may be smaller than the size of the first sub-polyimide substrate 11.
  • the first sub-polyimide substrate 11 and the second sub-polyimide substrate 12 may be an integral structure, for example, may be formed by patterning a continuous and complete polyimide substrate.
  • the plurality of first sub-polyimide substrates 11 and the plurality of second sub-polyimide substrates 12 may be alternately connected to form the closed area.
  • Each first sub-polyimide substrate 11 can be located between two second sub-polyimide substrates 12 and connected to the two second sub-polyimide substrates 12 respectively.
  • Each second sub-polyimide substrate 12 may be located between the two first sub-polyimide substrates 11 and connected to the two first sub-polyimide substrates 11 respectively.
  • the third sub-polyimide substrate 13 is disposed in the closed area, and may be spaced apart from the plurality of first sub-polyimide substrates 11 and the plurality of second sub-polyimide substrates 12 .
  • the first wire 21 can be supported by the surfaces of the first sub polyimide substrate 11 and the second sub polyimide substrate 12, and the first wire 21 is sandwiched between the first sub polyimide substrate 11 and the second sub polyimide substrate 11 Between a device 31.
  • the two ends of the first wire 21 are respectively located on the two first sub-polyimide substrates 11, and the middle portion is located on the second sub-polyimide substrate 12.
  • the parts of the first wires 21 respectively located on the two first sub-polyimide substrates 11 are not the ends of the first wires 21, and the first wires 21 are from a second sub-polyimide substrate.
  • the amine substrate 12 passes through a first sub-polyimide substrate 11 and then extends to another second sub-polyimide substrate 12.
  • the shape of the first sub-polyimide substrate 11 can be any implementable pattern, such as a rectangle, a rhombus, a triangle, a circle, a polygon, etc., and it is a square in the embodiment of FIG. 1.
  • the square shape saves the most space and facilitates the arrangement of devices on the first sub-polyimide substrate 11.
  • the shape of the second sub-polyimide substrate 12 may be a straight line or a curve with a certain width.
  • the third sub-polyimide substrate 13 there are no wires and devices on the third sub-polyimide substrate 13.
  • the shape of the third sub-polyimide substrate 13 can be any implementable pattern, and in one embodiment is a square.
  • the stretchable display panel further includes an elastomer 50.
  • the elastomer 50 connects the first sub-polyimide substrate 11, the second sub-polyimide substrate 12, and the third sub-polyimide substrate.
  • the amine substrate 13, the first wire 21, and the first device 31 are wrapped to help protect the device from being damaged when stretched.
  • the elastic body 50 may be a continuous whole, the first sub-polyimide substrate 11, the second sub-polyimide substrate 12, the third sub-polyimide substrate 13, the first wire 21, the first device 31 is embedded inside the same elastic body 50.
  • the elastic body 50 can be elastically deformed under a force.
  • the first sub-polyimide substrate 11, the second sub-polyimide substrate 12, and the third sub-polyimide substrate 13 can be formed by dividing a complete polyimide substrate, for example, by laser Pattern the complete polyimide substrate in a manner.
  • the area of polyimide patterning can be reduced without reducing the tensile performance of the device, thereby shortening the patterning area of polyimide. Time, and prolong the service life of the laser, increase the productivity.
  • the orthographic shape of the portion of the first wire 21 located on the first polyimide sub-substrate 11 is a straight line
  • the portion of the first wire 21 located on the second sub-polyimide substrate 12 is The orthographic projection shape is a straight line or a curve.
  • the orthographic shape of the portion of the first wire 21 located on the second sub-polyimide substrate 12 is a curve, for example, an S shape, and the second sub-polyimide substrate 12 is also a curve.
  • the part of the first wire 21 located on the second sub-polyimide substrate 12 has the same or similar shape as the second sub-polyimide substrate 12, and the second sub-polyimide substrate
  • the width of the amine substrate 12 is equal to or slightly larger than the width of the portion of the first wire 21 on the second sub-polyimide substrate 12.
  • the orthographic projection of the first wire 21 on the polyimide substrate is located in the central area of the first sub-polyimide substrate 11 and the second sub-polyimide substrate 12.
  • the width of the first wire 21 is smaller than or equal to the width of the first sub-polyimide substrate 11 and the second sub-polyimide substrate 12, respectively.
  • the width of the first wire 21 is the length of d marked in FIG. 1. In this way, it can be ensured that the stress on the first wire 21 is minimized during stretching, and it is not easy to break.
  • the first sub-polyimide substrate 11, the second sub-polyimide substrate 12, the first device 31, and the first wire 21 constitute a first device group.
  • the first sub-polyimide substrate 11, the second sub-polyimide substrate 12, and the third sub-polyimide substrate 13 are arranged in the same layer, which can further simplify the manufacturing process.
  • the stretchable display panel further includes a second wire 22, a second device 32, and a fifth sub-polyimide substrate 15.
  • the stretchable display panel may further include a first intermediate layer 41, an elastomer 50 and a fourth sub-polyimide substrate 14.
  • the fourth sub-polyimide substrate 14 is located on the third sub-polyimide substrate 13.
  • the second device 32 and part of the second wire 22 are located on the fourth sub-polyimide substrate 14, and another part of the second wire 22 is located on the fifth sub-polyimide substrate 15.
  • the first intermediate layer 41 is located between the third sub-polyimide substrate 13 and the fourth sub-polyimide substrate 14.
  • the fourth sub-polyimide substrate 14, the fifth sub-polyimide substrate 15, the second wire 22 and the second device 32 constitute a second device group.
  • the plurality of second device groups can be connected to each other through the second wire.
  • a part of the second wire 22 is provided on the upper surface of the fourth sub-polyimide substrate 14.
  • the second device 32 is located on the fourth sub-polyimide substrate 14 and above the second wire 22.
  • the second wire 22 is electrically connected to the second device 32, and the second device 32 is electrically connected through the second wire 22.
  • a part of the second wire 22 is provided on the fifth sub-polyimide substrate 15.
  • the second wire 22 provided on the upper surface of the fourth sub-polyimide substrate 14 and the second wire 22 provided on the fifth sub-polyimide substrate 15 are connected to each other. .
  • the second wire 22 can be supported by the surfaces of the fourth sub-polyimide substrate 14 and the fifth sub-polyimide substrate 15, and the second wire 22 is sandwiched between the fourth sub-polyimide substrate 14 and the fourth sub-polyimide substrate 14. Between two devices 32.
  • the middle portion of the second wire 22 is located on the third sub-polyimide substrate 13, and both ends are located on the two fifth sub-polyimide substrates 15 respectively.
  • the second wire 22 passes from a fifth sub-polyimide substrate 15 through a third sub-polyimide substrate 13 and then extends to another fifth sub-polyimide substrate 15.
  • the part of the second wire 22 located on the two fifth sub-polyimide substrates 15 may not be an end part.
  • the size of the second device 32 may be smaller than the size of the third sub-polyimide substrate 13.
  • a plurality of third sub-polyimide substrates 13 are arranged in an array, and a plurality of first sub-polyimide substrates 11 are also arranged in an array, and except for the edge of the array, each third sub-substrate
  • the polyimide substrate 13 is surrounded by a plurality of first sub-polyimide substrates 11, and each first sub-polyimide substrate 11 is also provided with a plurality of third sub-polyimides.
  • the elastomer 50 connects the first sub-polyimide substrate 11, the second sub-polyimide substrate 12, the third sub-polyimide substrate 13, the fourth sub-polyimide substrate 14, and the fifth sub-polyimide substrate.
  • the sub-polyimide substrate 15, the first wire 21, the second wire 22, the first device 31, the second device 32 and the first intermediate layer 41 are wrapped to help protect the device from being damaged when stretched.
  • the second device group is located in the gap between the first device groups. This arrangement can significantly improve the precision of the device and can significantly increase the pixel density (PPI) of the stretchable display panel.
  • PPI pixel density
  • the first intermediate layer 41 is an adhesive layer of elastic material, such as polydimethylsiloxane, because it facilitates the adhesion with polyimide without affecting the tensile properties and optical properties.
  • the second wire 22 is located in the central area of the third sub-polyimide substrate 13, and the width 22 of the second wire is less than or equal to the width of the third sub-polyimide substrate 13.
  • the definition of the width is as shown in the previous embodiment, and will not be detailed here. In this way, it can be ensured that when the second wire 22 is stretched, the stress on the second wire 22 is minimized and it is not easy to break.
  • the orthographic shape of the portion of the second wire 22 located on the fourth sub-polyimide substrate 14 is a straight line.
  • the orthographic projection of the portion of the second wire 22 on the fifth sub-polyimide substrate 15 is a straight line or a curved line. When the orthographic projection is a curve, the tensile stress can be further buffered.
  • the fifth sub-polyimide substrate 15 may also be curved, and the portion of the second wire 22 on the fifth sub-polyimide substrate 15 has the same or similar shape as the fifth sub-polyimide substrate 15
  • the width of the fifth sub-polyimide substrate 15 is equal to or slightly larger than the width of the portion of the second wire 22 on the fifth sub-polyimide substrate 15.
  • the curvilinear fifth sub-polyimide substrate 15 together with the second wires 22 on it can be stretched into a straight line or close to a straight line, to a certain extent, when the display panel is stretched , The second wire 22 will not be broken due to deformation.
  • the first sub-polyimide substrate 11, the second sub-polyimide substrate 12, and the third sub-polyimide substrate 13 are arranged in the same layer, and the fourth sub-polyimide substrate The bottom 14 and the fifth sub-polyimide substrate 15 are arranged in the same layer, which can optimize the manufacturing process.
  • the fourth sub-polyimide substrate 14 and the fifth sub-polyimide substrate 15 can be formed by dividing another complete polyimide substrate, for example, by laser patterning.
  • the complete polyimide substrate can be formed by dividing another complete polyimide substrate, for example, by laser patterning.
  • the stretchable display panel provided by the present application further includes a second intermediate layer 42 and a sixth sub-polyimide substrate 16.
  • the island-shaped polyimide substrate in the middle of FIG. 5 is the third sub-polyimide substrate 13, and the bridge-shaped polyimide substrate connected to it is the fifth sub-polyimide substrate.
  • Sub-polyimide substrate 15 is the third sub-polyimide substrate 13
  • the second intermediate layer 42 is located between the third sub-polyimide substrate 13 and the fourth sub-polyimide substrate 14, and is also located between the first sub-polyimide substrate 11 and the fourth sub-polyimide substrate. Between six polyimide substrates 16.
  • the orthographic projection shape of the portion of the second wire 22 on the fifth sub-polyimide substrate 15 is a straight line or a curve, preferably a curve, and more specifically, an S shape, which can further prevent stretching Fracture in the process.
  • the device orientations of the first device group and the second device group are opposite, and there is a second intermediate layer 42 between the first device group and the second device group, the first device group and the second device group
  • the devices are located on the upper and lower sides of the second intermediate layer 42.
  • This arrangement can form a double-sided display that can stretch the display panel.
  • the elastic body 50 combines the first sub-polyimide substrate 11, the second sub-polyimide substrate 12, the third sub-polyimide substrate 13, and the fourth sub-polyimide substrate.
  • Substrate 14, fifth sub polyimide substrate 15, sixth sub polyimide substrate 16, first wire 21, second wire 22, first device 31, second device 32, and second intermediate layer All 42 are wrapped.
  • the elastic body 50 has an all-round protection for the first device 31 and the second device 32, and the elastic body 50 between the two devices plays a role of connection and support.
  • the second intermediate layer 42 is an adhesive layer of elastic material, preferably polydimethylsiloxane, because it facilitates the adhesion with polyimide without affecting the stretchability. And optical performance.
  • the thickness of the first intermediate layer 41 and the second intermediate layer 42 are both less than 10 ⁇ m, which is less than the thickness of the elastomer 50, which is beneficial to making the stretchable display panel thin.
  • the material of the elastomer 50 includes one or more of silicone rubber, polyurethane, and acrylic, preferably silicone rubber, because silicone rubber facilitates film formation.
  • the first sub-polyimide substrate 11 and the third sub-polyimide substrate 13 are arranged in the same layer, and the fourth sub-polyimide substrate 14 and the sixth sub-polyimide substrate are arranged in the same layer.
  • the bottom 16 is set in the same layer to optimize the production process.
  • the embodiments of the present application also provide a stretchable display device, which can be an OLED display device, a Micro LED display device, an LED display device, and a sensor device, as well as a TV, a digital camera, an OLED display device, a Micro LED, and an LED display device.
  • a stretchable display device which can be an OLED display device, a Micro LED display device, an LED display device, and a sensor device, as well as a TV, a digital camera, an OLED display device, a Micro LED, and an LED display device.
  • Any product or component with display function such as mobile phone, tablet computer, smart watch, e-book, navigator, etc.
  • the display device includes: the stretchable display panel in any one of the foregoing embodiments, and the structure, function, and implementation of the stretchable display panel can be referred to the specific description in the foregoing embodiment, and will not be repeated here.
  • FIG. 7 is a schematic flow chart of a method for preparing a stretchable display panel according to an exemplary embodiment of the present application. As shown in FIG. 7, the method for preparing a stretchable display panel provided in this embodiment includes steps 101 to 107 .
  • Step 101 Provide a substrate.
  • the substrate may be a glass substrate.
  • Step 102 Coating a peelable substrate.
  • the peelable substrate is preferably a polyimide substrate, and the thickness of the polyimide substrate is 5-30 ⁇ m.
  • Step 103 coating the photoresist layer, and performing patterning processing on the photoresist layer.
  • a photoresist layer is coated on the peelable substrate, and the photoresist layer is patterned through an exposure and development process.
  • Step 104 deposit a metal layer, and perform patterning processing on the metal layer.
  • a metal layer is simultaneously deposited on the photoresist layer remaining after the patterning process and the peelable substrate exposed after exposure and development. After the metal layer is deposited, the photoresist layer is stripped, so that the metal layer on the photoresist layer is also stripped, so that the metal layer on the exposed peelable substrate forms a wire.
  • the metal can be deposited first and then patterned, or a liftoff process can be used.
  • the thickness of the metal layer may be 100 nm-2 ⁇ m.
  • An insulating layer can be formed on the metal wire to protect the metal wire.
  • Step 105 Perform patterning processing on the peelable substrate.
  • the peelable substrate is preferably a polyimide substrate, and the polyimide substrate is patterned to form several first sub-polyimide substrates, several second sub-polyimide substrates, and The at least one third sub-polyimide substrate is patterned, for example, by laser processing.
  • Step 106 forming a device.
  • the device can be made in advance, and then the device is connected to the wire by welding.
  • the metal material used for welding can be tin, silver, indium, etc., or other methods can be used on the wire
  • the device is directly formed, and no specific limitation is made here.
  • the device can be an optoelectronic device or a sensor device.
  • the method for preparing the stretchable display panel may further include step 107: forming an elastomer.
  • An elastomer is formed above and below the device to wrap the device, and the material of the elastomer includes one or more of silicone rubber, urethane, and acrylic.
  • the thickness of the elastomer can be 50-500 ⁇ m.
  • the polyimide substrate is patterned by laser laser.
  • part of the polyimide substrate except for the wire area and the integrated device area is reserved. Without reducing the stretching performance of the device, the area of polyimide patterning is reduced, so that the time for polyimide patterning can be shortened, the service life of the laser is prolonged, and the productivity is increased.

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Human Computer Interaction (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

本申请公开了一种可拉伸显示面板及其制备方法、显示装置。该可拉伸显示面板包括：聚酰亚胺衬底，其包括若干第一子聚酰亚胺衬底、若干第二子聚酰亚胺衬底和至少一个第三子聚酰亚胺衬底；第一导线，位于第一子聚酰亚胺衬底和第二子聚酰亚胺衬底的上方；至少一个第一器件，所述第一器件位于第一子聚酰亚胺衬底上，第一导线与第一器件电连接，并且所述第一器件之间通过所述第一导线电连接；相邻的第一子聚酰亚胺衬底通过第二子聚酰亚胺衬底连接，并形成闭合区域，第三子聚酰亚胺衬底位于闭合区域内；第一子聚酰亚胺衬底、第二子聚酰亚胺衬底、第一器件和第一导线构成第一器件组。

Description

可拉伸显示面板及其制备方法、显示装置
相关申请
本申请要求2019年04月12日申请的，申请号为201910295496.2，名称为“可拉伸显示面板及其制备方法、显示装置”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本申请涉及显示技术领域，特别是涉及一种可拉伸显示面板及其制备方法、可拉伸显示装置。
背景技术
目前有两种形式可以实现器件的拉伸，一种是通过本身可以拉伸的电极材料比如聚二甲基硅氧烷与石墨烯或者纳米银线的复合材料实现拉伸功能；另一种是通过图形化不可拉伸的金属材料。
第一种方案的拉伸能力足够强，但电学性能无法满足高精密仪器应用，第二种方案通过图形化实现拉伸能力的器件结构也同样存在问题，由于图形化的电极线路需要占用空间，所以无法提高集成度，并且聚酰亚胺作为金属导线的衬底，通过聚酰亚胺的图形化实现拉伸性能，但聚酰亚胺的图形化可以通过激光镭射或者曝光显影方式实现，可以曝光显影的聚酰亚胺种类稀少，而且制作厚度薄，以及无法支撑高温工艺，或者激光剥离存在困难，所以会采用激光镭射的方式。
激光镭射的工作方法是使用激光器去除非导线区域的所有聚酰亚胺，但是存在加工时间长，激光器寿命缩短的缺陷。
发明内容
本申请主要提供一种可拉伸显示面板及其制备方法、可拉伸显示装置。克服了激光镭射方法中存在的加工时间长，激光器寿命缩短的缺陷。
第一方面，本申请实施例提供了一种可拉伸显示面板，可拉伸显示面板包括：
聚酰亚胺衬底，聚酰亚胺衬底包括若干第一子聚酰亚胺衬底、若干第二子聚酰亚胺衬底和至少一个第三子聚酰亚胺衬底；
第一导线，第一导线位于第一子聚酰亚胺衬底和第二子聚酰亚胺衬底上；
至少一个第一器件，第一器件位于第一子聚酰亚胺衬底上，第一导线与第一器件电连接，并且所述第一器件之间通过所述第一导线电连接；
相邻的第一子聚酰亚胺衬底通过第二子聚酰亚胺衬底连接，并形成闭合区域，第三子聚酰亚胺衬底位于闭合区域内；第一子聚酰亚胺衬底、第二子聚酰亚胺衬底、第一器件和第一导线构成第一器件组。
第二方面，本申请实施例提供一种可拉伸显示装置，其包括可拉伸显示面板；
其中所述可拉伸显示面板包括：
聚酰亚胺衬底，所述聚酰亚胺衬底包括若干第一子聚酰亚胺衬底、若干第二子聚酰亚胺衬底和至少一个第三子聚酰亚胺衬底；
第一导线，所述第一导线位于所述第一子聚酰亚胺衬底和所述第二子聚酰亚胺衬底上；
至少一个第一器件，所述第一器件位于所述第一子聚酰亚胺衬底上，所述第一导线与所述第一器件电连接，并且所述第一器件之间通过所述第一导线电连接；
相邻的所述第一子聚酰亚胺衬底通过所述第二子聚酰亚胺衬底连接，并形成闭合区域，所述第三子聚酰亚胺衬底位于所述闭合区域内；
所述第一子聚酰亚胺衬底、所述第二子聚酰亚胺衬底、所述第一器件和所述第一导线构成第一器件组。
第三方面，本申请还提供一种可拉伸显示面板的制备方法，包括：
在基板上涂布可剥离衬底；
涂布光阻层，并对所述光阻层进行图形化处理；
沉积金属层，并对所述金属层进行图形化处理；
对所述可剥离衬底进行图形化处理；
形成器件；以及
形成弹性体。
本申请提供的一种可拉伸显示面板及其制备方法、可拉伸显示装置，
通过保留了器件之间的中心区域的聚酰亚胺衬底图案，本申请的可拉伸显示面板能够缩短激光镭射的加工时间，延长了激光器的使用寿命，提高了产能。在保留的聚酰亚胺衬底图案上形成新的一组器件组，解决了由于为了实现拉伸功能，导线和衬底图形化需要占用空间大，存在无法制作高密度器件的问题，通过这种方式可有效提高器件的精密程度，将其应用到显示中可以显著提高PPI。在保留的聚酰亚胺衬底图案上形成的新的器件组可 以与原始的器件组位于上下相反的两侧，形成了双面显示屏体，同时还能够增加器件衬底的刚性，相当于在原有集成器件的一面又增加了一层聚酰亚胺衬底，利于保护器件，不容易损伤。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述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申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。其中：
图1是本申请提供的可拉伸显示面板的一种实施方式的结构示意图；
图2是本申请提供的可拉伸显示面板的一种实施方式的剖面结构示意图；
图3是根据图1所示的显示面板增加第二导线、第二器件、第五子聚酰亚胺衬底的结构示意图；
图4是根据图2所示的显示面板增加第一中间层、弹性体、第四子聚酰亚胺衬底、第二导线、第二器件、第五子聚酰亚胺衬底的剖面结构示意图；
图5是根据图4所示的显示面板将第一器件组与第二器件组反向设置，并增加第二中间层、第六子聚酰亚胺衬底，省略第一中间层的结构示意图；
图6是根据图5所示的显示面板增加弹性体的剖面结构示意图；
图7是本申请提供的可拉伸显示面板的制备方法的流程示意图。
具体实施方式
下面将详细描述本申请的各个方面的特征和示例性实施例，为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及具体实施例，对本申请进行进一步详细描述。应理解，此处所描述的具体实施例仅被配置为解释本申请，并不被配置为限定本申请。对于本领域技术人员来说，本申请可以在不需要这些具体细节中的一些细节的情况下实施。下面对实施例的描述仅仅是为了通过示出本申请的示例来提供对本申请更好的理解。
在本文中提到的“可拉伸”的含义为可受拉力而伸长，但不排除受压力而被缩短，也就是在外力作用下可发生形变均在“可拉伸”含义内。以下，结合附图对本申请进行详细说明。
请参阅图1、图2，本申请一实施例提供一可拉伸显示面板，包括若干第一子聚酰亚胺衬底11、第一导线21、第一器件31、若干第二子聚酰亚胺衬底12、至少一个第三子聚 酰亚胺衬底13。第一器件31具体可以是构成显示面板的光电器件或者是传感器件，在此不做具体的限定。
第一子聚酰亚胺衬底11与第二子聚酰亚胺衬底12连接，形成闭合区域。第三子聚酰亚胺衬底13为独立存在的聚酰亚胺衬底，并且第三子聚酰亚胺衬底13位于该闭合区域内。第一子聚酰亚胺衬底11的上面设有第一导线21、第一器件31。第二子聚酰亚胺衬底12上面设有第一导线21。第一器件31位于第一导线21的上方。第一导线21与第一器件31电连接，并且第一器件31之间通过第一导线21电连接。即第一导线21的一部分位于第一子聚酰亚胺衬底11上，另外的部分位于第二子聚酰亚胺衬底12上。第三聚酰亚胺衬底13的大小可根据实际情况进行调整，以保证不影响器件的拉伸性能。
在一实施例中，上面有第一器件31的第一子聚酰亚胺衬底11是岛形状的聚酰亚胺衬底，第二子聚酰亚胺衬底12为桥形状的聚酰亚胺衬底。
在一实施例中，第一器件31的尺寸可以小于第一子聚亚酰胺衬底11的尺寸。
第一子聚酰亚胺衬底11与第二子聚酰亚胺衬底12可以为一体结构，例如可以通过图案化一连续完整的聚酰亚胺衬底形成。若干第一子聚酰亚胺衬底11与若干第二子聚酰亚胺衬底12可通过交替连接的方式共同形成所述闭合区域。每个第一子聚酰亚胺衬底11可位于两个第二子聚酰亚胺衬底12之间，并分别与该两个第二子聚酰亚胺衬底12连接。每个第二子聚酰亚胺衬底12可位于两个第一子聚酰亚胺衬底11之间，并分别与该两个第一子聚酰亚胺衬底11连接。
第三子聚酰亚胺衬底13设置在所述闭合区域中，可以与所述若干第一子聚酰亚胺衬底11及所述若干第二子聚酰亚胺衬底12相间隔开。
第一导线21可通过第一子聚酰亚胺衬底11和第二子聚酰亚胺衬底12的表面支撑，且第一导线21夹于第一子聚酰亚胺衬底11与第一器件31之间。
在一实施例中，第一导线21的两端分别位于两个第一子聚酰亚胺衬底11上，中部位于第二子聚酰亚胺衬底12上。在另一实施例中，第一导线21分别位于两个第一子聚酰亚胺衬底11上的部分并非为第一导线21的端部，第一导线21从一第二子聚酰亚胺衬底12经过一第一子聚酰亚胺衬底11，又延伸至另一第二子聚酰亚胺衬底12。
第一子聚酰亚胺衬底11的形状可以为任何可实施的图形，例如：长方形、菱形、三角形、圆形、多边形等其他图形，在图1的实施例中为正方形。正方形最节省空间，有利于在第一子聚酰亚胺衬底11上布置器件。第二子聚酰亚胺衬底12的形状可以为具有一定宽度的直线或曲线。
在本实施例中，第三子聚酰亚胺衬底13上面没有导线和器件。第三子聚酰亚胺衬底13的形状可以为任何可实施的图形，在一实施例中为正方形。
如图2所示，该可拉伸显示面板还包括弹性体50，弹性体50将第一子聚酰亚胺衬底11、第二子聚酰亚胺衬底12、第三子聚酰亚胺衬底13、第一导线21、第一器件31包裹起来，有利于保护器件在拉伸时，不被破坏。弹性体50可以为一连续整体，第一子聚酰亚胺衬底11、第二子聚酰亚胺衬底12、第三子聚酰亚胺衬底13、第一导线21、第一器件31嵌入同一弹性体50内部。弹性体50可在受力情况下发生弹性形变。
第一子聚酰亚胺衬底11、第二子聚酰亚胺衬底12、第三子聚酰亚胺衬底13可通过分割一个完整的聚酰亚胺衬底形成，例如通过激光镭射的方式图形化该完整的聚酰亚胺衬底。在本实施例中，通过保留器件中间的第三聚酰亚胺衬底13可以在不减少器件拉伸性能情况下，减少聚酰亚胺图形化的面积，从而缩短聚酰亚胺图形化的时间，并且延长了激光器的使用寿命，提高了产能。
在一些实施例中，第一导线21位于第一子聚酰亚胺衬底11上的部分的正投影形状为直线，第一导线21位于第二子聚酰亚胺衬底12上的部分的正投影形状为直线或曲线。在一实施例中，第一导线21位于第二子聚酰亚胺衬底12上的部分的正投影形状为曲线，例如为S形，且第二子聚酰亚胺衬底12同样为曲线，例如为S形，也就是第一导线21位于第二子聚酰亚胺衬底12上的部分与第二子聚酰亚胺衬底12具有相同或相似的形状，第二子聚酰亚胺衬底12的宽度等于或稍大于第一导线21位于第二子聚酰亚胺衬底12上的部分的宽度。受到拉力时，曲线状的第二子聚酰亚胺衬底12可连同其上的第一导线21可被拉伸为直线或接近直线状，这样可以在一定程度上使得在对显示面板进行拉伸时，第一导线21不会因形变而断裂。
在一些实施例中，第一导线21在聚酰亚胺衬底上的正投影位于第一子聚酰亚胺衬底11和第二子聚酰亚胺衬底12的中心区域。第一导线21的宽度分别小于或等于第一子聚酰亚胺衬底11和第二子聚酰亚胺衬底12的宽度。第一导线21的宽度为图1中标注的d的长度。这样可以保证在拉伸时第一导线21所受应力最小，不容易断裂。
在一些实施例中，第一子聚酰亚胺衬底11、第二子聚酰亚胺衬底12、第一器件31和第一导线21构成第一器件组。
在一些实施例中，第一子聚酰亚胺衬底11、第二子聚酰亚胺衬底12和第三子聚酰亚胺衬底13同层设置，这样可进一步简化制作工艺。
在另一种实施例中，请参阅图3，该可拉伸显示面板还包括第二导线22、第二器件32、 第五子聚酰亚胺衬底15。
请参阅图4，该可拉伸显示面板还可包括第一中间层41、弹性体50、第四子聚酰亚胺衬底14。第四子聚酰亚胺衬底14位于第三子聚酰亚胺衬底13上。第二器件32和部分第二导线22位于第四子聚酰亚胺衬底14上，另一部分第二导线22位于第五子聚酰亚胺衬底15上。第一中间层41位于第三子聚酰亚胺衬底13和第四子聚酰亚胺衬底14之间。第四子聚酰亚胺衬底14、第五子聚酰亚胺衬底15、第二导线22和第二器件32构成第二器件组。多个所述第二器件组彼此之间可通过所述第二导线相连。
在第四子聚酰亚胺衬底14的上面设有部分第二导线22。第二器件32位于第四子聚酰亚胺衬底14上且位于第二导线22的上方。第二导线22与第二器件32电连接，并且第二器件32之间通过第二导线22电连接。在第五子聚酰亚胺衬底15上设有部分第二导线22。在第四子聚酰亚胺衬底14的上面设有的第二导线22和在第五子聚酰亚胺衬底15上设有的第二导线22这两部分的第二导线22相连接。
第二导线22可通过第四子聚酰亚胺衬底14和第五子聚酰亚胺衬底15的表面支撑，且第二导线22夹于第四子聚酰亚胺衬底14与第二器件32之间。
第五子聚酰亚胺衬底15可以为若干个，位于第三子聚酰亚胺衬底13的两端。在一实施例中，第二导线22的中部位于第三子聚酰亚胺衬底13上，两端分别位于两个第五子聚酰亚胺衬底15上。可选的，第二导线22从一第五子聚酰亚胺衬底15经过一个第三子聚酰亚胺衬底13，又延伸至另一第五子聚酰亚胺衬底15。第二导线22位于两个第五子聚酰亚胺衬底15上的部分可以并非为端部。第三子聚酰亚胺衬底13可以为若干个，第二导线22从一第三子聚酰亚胺衬底13经过一第五子聚酰亚胺衬底15，又延伸至另一第三子聚酰亚胺衬底13。
在一实施例中，第二器件32的尺寸可以小于第三子聚酰亚胺衬底13的尺寸。
在一实施例中，若干第三子聚酰亚胺衬底13呈阵列排布，若干第一子聚酰亚胺衬底11也呈阵列排布，且除阵列边缘外，每个第三子聚酰亚胺衬底13周围均设置有多个第一子聚酰亚胺衬底11，每个第一子聚酰亚胺衬底11周围也均设置有多个第三子聚酰亚胺衬底13。
由于第一器件组和第二器件组的导线部分会重叠，重叠区域通过第一中间层41隔离，不影响器件拉伸时的移动。弹性体50将第一子聚酰亚胺衬底11、第二子聚酰亚胺衬底12、第三子聚酰亚胺衬底13、第四子聚酰亚胺衬底14、第五子聚酰亚胺衬底15、第一导线21、第二导线22、第一器件31、第二器件32和第一中间层41包裹起来，有利于保护器件在 拉伸时，不被破坏。
第二器件组位于多个第一器件组之间的间隙中，这种方式的设置可以显著提高器件的精密程度，可以显著提高可拉伸显示面板的像素密度(PPI)。
第一中间层41为弹性材料的粘结层，例如为聚二甲基硅氧烷，因为其有利于与聚酰亚胺的粘结，同时不也会影响拉伸性能以及光学性能。
第二导线22位于第三子聚酰亚胺衬底13的中心区域，第二导线的宽度22小于或等于第三子聚酰亚胺衬底13的宽度。其中宽度的定义如上个实施例所示，在此不做具体的赘述。这样可以保证在拉伸时，第二导线22所受应力最小，不容易断裂。
第二导线22位于第四子聚酰亚胺衬底14上的部分的正投影形状为直线。
第二导线22位于第五子聚酰亚胺衬底15上的部分的正投影为直线或曲线。当所述正投影为曲线时，可进一步缓冲拉伸应力。第五子聚酰亚胺衬底15可同样为曲线，第二导线22位于第五子聚酰亚胺衬底15上的部分与第五子聚酰亚胺衬底15具有相同或相似的形状，第五子聚酰亚胺衬底15的宽度等于或稍大于第二导线22位于第五子聚酰亚胺衬底15上的部分的宽度。受到拉力时，曲线状的第五子聚酰亚胺衬底15可连同其上的第二导线22可被拉伸为直线或接近直线状，在一定程度上使得在对显示面板进行拉伸时，第二导线22不会因形变而断裂。
在一些实施例中，第一子聚酰亚胺衬底11、第二子聚酰亚胺衬底12和第三子聚酰亚胺衬底13同层设置，第四子聚酰亚胺衬底14和第五子聚酰亚胺衬底15同层设置，可优化制作工艺。
在一实施例中，第四子聚酰亚胺衬底14和第五子聚酰亚胺衬底15可通过分割另一个完整的聚酰亚胺衬底形成，例如通过激光镭射的方式图形化该完整的聚酰亚胺衬底。
在再一种实施例中，请参阅图5、图6，本申请提供的可拉伸显示面板还包括第二中间层42和第六子聚酰亚胺衬底16。
在本实施例中，图5中的最中间的岛形状的聚酰亚胺衬底为第三子聚酰亚胺衬底13，与之相连的桥形状的聚酰亚胺衬底为第五子聚酰亚胺衬底15。
在本实施例中，第二中间层42位于第三子聚酰亚胺衬底13和第四子聚酰亚胺衬底14之间，也位于第一子聚酰亚胺衬底11和第六子聚酰亚胺衬底16之间。
在本实施例中，第二导线22位于第五子聚酰亚胺衬底15上的部分的正投影形状为直线或曲线，优选为曲线，更具体的为S形，可进一步防止在拉伸过程中出现的断裂现象。
在本实施例中，第一器件组和第二器件组的器件朝向是相反的，第一器件组和第二器 件组中间还有一层第二中间层42，第一器件组和第二器件组的器件位于第二中间层42的上下两侧。此种设置，可以形成可拉伸显示面板屏体的双面显示。
在本实施例中，弹性体50将第一子聚酰亚胺衬底11、第二子聚酰亚胺衬底12、第三子聚酰亚胺衬底13、第四子聚酰亚胺衬底14、第五子聚酰亚胺衬底15、第六子聚酰亚胺衬底16、第一导线21、第二导线22、第一器件31、第二器件32和第二中间层42全部都包裹住。弹性体50对第一器件31和第二器件32有一个全方位的保护，两个器件之间的弹性体50起到连接和支撑的作用。
在一些实施例中，第二中间层42为弹性材料的粘结层，优选为聚二甲基硅氧烷，因为其有利于与聚酰亚胺的粘结，同时还不会影响拉伸性能以及光学性能。
在一些实施例中，第一中间层41和第二中间层42的厚度均小于10μm，小于弹性体50的厚度，有利于可拉伸显示面板做薄。
在一些实施例中，弹性体50的材料包括硅橡胶、聚氨酯类和丙烯酸类中的一种或多种，优选为硅橡胶，因为硅橡胶便于成膜。
在一些实施例中，第一子聚酰亚胺衬底11和第三子聚酰亚胺衬底13同层设置，第四子聚酰亚胺衬底14和第六子聚酰亚胺衬底16同层设置，可优化制作工艺。
本申请实施例还提供一种可拉伸显示装置，该显示装置可以为OLED显示器件、Micro LED显示器件、LED显示器件和传感器件以及包括OLED、Micro LED、LED显示器件的电视、数码相机、手机、平板电脑、智能手表、电子书、导航仪等任何具有显示功能的产品或者部件。
该显示装置包括：前述任一实施例中的可拉伸显示面板，其中的可拉伸显示面板的结构、功能及实现可参照上述实施例中的具体描述，此处不再赘述。
图7是本申请根据一示例性实施例示出的可拉伸显示面板的制备方法的流程示意图，如图7所示，本实施例提供的可拉伸显示面板的制备方法，包括步骤101至107。
步骤101：提供一基板。
具体地，基板可以是玻璃基板。
步骤102：涂布可剥离衬底。
具体地，可剥离衬底优选为聚酰亚胺衬底，聚酰亚胺衬底的厚度为5-30μm。
步骤103：涂布光阻层，并对光阻层进行图形化处理。
在可剥离衬底上面涂布光阻层，通过曝光显影工艺，对光阻层进行图形化处理。
步骤104：沉积金属层，并对金属层进行图形化处理。
在所述图形化处理后剩余的光阻层以及曝光显影后暴露出的可剥离衬底上同步沉积金属层。沉积金属层后，对光阻层进行剥离，从而连带光阻层上的金属层也被剥离，使暴露的可剥离衬底上的金属层形成导线。
此处可以是先沉积金属再图形化，或者采用lift off工艺都可以。
金属层的厚度可为100nm-2μm。
可以在金属导线上方形成绝缘层，利于保护金属导线。
步骤105：对可剥离衬底进行图形化处理。
具体地，可剥离衬底优选为聚酰亚胺衬底，对聚酰亚胺衬底进行图形化，形成若干第一子聚酰亚胺衬底、若干第二子聚酰亚胺衬底和至少一个第三子聚酰亚胺衬底，图形化的方式例如为激光镭射处理。
步骤106：形成器件。
具体地，在所述导线上形成器件，可以预先制作器件，再通过焊接的方式，将器件与导线连接，焊接所用金属材料，可以是锡、银、铟等，也可在导线上方通过其他方法直接形成器件，在此不做具体的限定。
器件可以是光电器件或者传感器件。
在一个实施例中，可拉伸显示面板的制备方法还可以包括步骤107：形成弹性体。
在器件上方和下方形成弹性体以便包裹住器件，弹性体的材料包括硅橡胶、聚氨酯类和丙烯酸类中的一种或多种。
弹性体的厚度可为50-500μm。
在本实施例中，通过激光镭射的方式图形化聚酰亚胺衬底，在图形化聚酰亚胺衬底时，保留部分除导线区域和集成器件区域以外的聚酰亚胺衬底，在不减少器件拉伸性能情况下，减少聚酰亚胺图形化的面积，从而可缩短聚酰亚胺图形化的时间，延长了激光器的使用寿命，提高了产能。
以上所述仅为本申请的实施方式，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (20)

  1. 一种可拉伸显示面板，包括：
    聚酰亚胺衬底，所述聚酰亚胺衬底包括若干第一子聚酰亚胺衬底、若干第二子聚酰亚胺衬底和至少一个第三子聚酰亚胺衬底；
    第一导线，所述第一导线位于所述第一子聚酰亚胺衬底和所述第二子聚酰亚胺衬底上；
    至少一个第一器件，所述第一器件位于所述第一子聚酰亚胺衬底上，所述第一导线与所述第一器件电连接，并且所述第一器件之间通过所述第一导线电连接；
    相邻的所述第一子聚酰亚胺衬底通过所述第二子聚酰亚胺衬底连接，并形成闭合区域，所述第三子聚酰亚胺衬底位于所述闭合区域内；
    所述第一子聚酰亚胺衬底、所述第二子聚酰亚胺衬底、所述第一器件和所述第一导线构成第一器件组。
  2. 根据权利要求1所述的可拉伸显示面板，其中，
    所述第一导线在所述第一子聚酰亚胺衬底的正投影的形状为直线；
    所述第一导线在所述第二子聚酰亚胺衬底的正投影形状为直线或曲线。
  3. 根据权利要求2所述的可拉伸显示面板，其中，
    所述第一导线在所述第一子聚酰亚胺衬底和所述第二子聚酰亚胺衬底上的正投影位于所述第一子聚酰亚胺衬底和第二子聚酰亚胺衬底的中心区域，所述第一导线的宽度小于等于所述第二子聚酰亚胺衬底的宽度。
  4. 根据权利要求1所述的可拉伸显示面板，其中，还包括第二器件组；
    所述第二器件组包括第四子聚酰亚胺衬底、第五子聚酰亚胺衬底、第二器件和第二导线；
    所述第四子聚酰亚胺衬底位于所述第三子聚酰亚胺衬底上；所述第二器件和部分所述第二导线位于所述第四子聚酰亚胺衬底上；另一部分所述第二导线位于所述第五子聚酰亚胺衬底上；
    所述第二导线与所述第二器件电连接，并且所述第二器件组彼此之间通过所述第二导线相连。
  5. 根据权利要求4所述的可拉伸显示面板，还包括第一中间层；
    其中，所述第一中间层位于所述第三子聚酰亚胺衬底和所述第四子聚酰亚胺衬底之间；
    所述第一中间层材料包括弹性材料。
  6. 根据权利要求5所述的可拉伸显示面板，其中，所述第一中间层材料为聚二甲基硅氧烷。
  7. 根据权利要求4所述的可拉伸显示面板，还包括第二中间层；
    其中，所述第二中间层位于所述第一子聚酰亚胺衬底远离所述第一器件的一侧，以及所述第四子聚酰亚胺衬底远离所述第二器件的一侧；
    所述第二器件组与所述第一器件组分别位于所述第二中间层上下两侧。
  8. 根据权利要求7所述的可拉伸显示面板，其中，
    所述第一中间层和所述第二中间层的厚度均小于10μm。
  9. 根据权利要求1所述的可拉伸显示面板，其中，还包括弹性体，所述弹性体包裹所述第一子聚酰亚胺衬底、所述第二子聚酰亚胺衬底、所述第三子聚酰亚胺衬底、所述第一导线和所述第一器件。
  10. 根据权利要求4所述的可拉伸显示面板，其中，还包括弹性体，所述弹性体包裹所述第一子聚酰亚胺衬底、所述第二子聚酰亚胺衬底、所述第三子聚酰亚胺衬底、所述第一导线、所述第一器件、所述第四子聚酰亚胺衬底、所述第五子聚酰亚胺衬底、所述第二器件和所述第二导线。
  11. 根据权利要求1所述的可拉伸显示面板，其中，所述第三子聚酰亚胺衬底独立于所述第一子聚酰亚胺衬底和所述第二子聚酰亚胺衬底。
  12. 根据权利要求1所述的可拉伸显示面板，其中，所述至少一个第一器件包括多个第一器件，所述多个第一器件之间通过所述第一导线电连接。
  13. 根据权利要1所述的可拉伸显示面板，其中，所述第一子聚酰亚胺衬底、所述第二子聚酰亚胺衬底和所述第三子聚酰亚胺衬底同层设置。
  14. 根据权利要求5所述的可拉伸显示面板，其中，所述第一器件组和所述第二器件组的重叠区域通过所述第一中间层隔离。
  15. 根据权利要求4所述的可拉伸显示面板，其中，所述第二器件组位于所述第一器件组的间隙中。
  16. 根据权利要求4所述的可拉伸显示面板，其中，所述第二导线位于所述第三子聚酰亚胺衬底的中心区域，所述第二导线的宽度小于等于第三子聚酰亚胺衬底的宽度。
  17. 根据权利要求4所述的可拉伸显示面板，其中，所述第一子聚酰亚胺衬底和所述第三子聚酰亚胺衬底同层设置，所述第四子聚酰亚胺衬底和所述第五子聚酰亚胺衬底同层 设置。
  18. 根据权利要求7所述的可拉伸显示面板，其中，还包括第六子聚酰亚胺衬底，所述第一子聚酰亚胺衬底和所述第三子聚酰亚胺衬底同层设置，所述第四子聚酰亚胺衬底和所述第六子聚酰亚胺衬底同层设置。
  19. 一种可拉伸显示装置，包括可拉伸显示面板；所述可拉伸显示面板包括：
    聚酰亚胺衬底，所述聚酰亚胺衬底包括若干第一子聚酰亚胺衬底、若干第二子聚酰亚胺衬底和至少一个第三子聚酰亚胺衬底；
    第一导线，所述第一导线位于所述第一子聚酰亚胺衬底和所述第二子聚酰亚胺衬底上；
    至少一个第一器件，所述第一器件位于所述第一子聚酰亚胺衬底上，所述第一导线与所述第一器件电连接，并且所述第一器件之间通过所述第一导线电连接；
    相邻的所述第一子聚酰亚胺衬底通过所述第二子聚酰亚胺衬底连接，并形成闭合区域，所述第三子聚酰亚胺衬底位于所述闭合区域内；
    所述第一子聚酰亚胺衬底、所述第二子聚酰亚胺衬底、所述第一器件和所述第一导线构成第一器件组。
  20. 一种可拉伸显示面板的制备方法，包括：
    在基板上涂布可剥离衬底；
    涂布光阻层，并对所述光阻层进行图形化处理；
    沉积金属层，并对所述金属层进行图形化处理；
    对所述可剥离衬底进行图形化处理；
    形成器件；以及
    形成弹性体。
PCT/CN2019/111748 2019-04-12 2019-10-17 可拉伸显示面板及其制备方法、显示装置 Ceased WO2020206971A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910295496.2A CN111816675B (zh) 2019-04-12 2019-04-12 可拉伸显示面板及其制备方法、显示装置
CN201910295496.2 2019-04-12

Publications (1)

Publication Number Publication Date
WO2020206971A1 true WO2020206971A1 (zh) 2020-10-15

Family

ID=72750872

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/111748 Ceased WO2020206971A1 (zh) 2019-04-12 2019-10-17 可拉伸显示面板及其制备方法、显示装置

Country Status (2)

Country Link
CN (1) CN111816675B (zh)
WO (1) WO2020206971A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230378195A1 (en) * 2022-05-18 2023-11-23 Japan Display Inc. Flexible electronic device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022133711A1 (zh) * 2020-12-22 2022-06-30 京东方科技集团股份有限公司 显示基板和显示装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180052493A1 (en) * 2016-08-18 2018-02-22 Samsung Display Co., Ltd. Display panel
CN108933148A (zh) * 2018-07-31 2018-12-04 上海天马微电子有限公司 显示面板和显示装置
CN109036145A (zh) * 2018-08-31 2018-12-18 上海天马微电子有限公司 一种可拉伸显示面板和柔性显示装置
CN109189265A (zh) * 2018-08-28 2019-01-11 上海天马微电子有限公司 一种可拉伸面板和柔性显示装置
CN109378332A (zh) * 2018-09-30 2019-02-22 昆山国显光电有限公司 柔性显示面板及显示装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102253531B1 (ko) * 2014-07-25 2021-05-18 삼성디스플레이 주식회사 표시 장치 및 그 제조 방법
KR102416112B1 (ko) * 2014-10-02 2022-07-04 삼성전자주식회사 스트레처블/폴더블 광전자소자와 그 제조방법 및 광전자소자를 포함하는 장치
CN104391394B (zh) * 2014-12-10 2017-06-06 京东方科技集团股份有限公司 显示面板母板、显示面板、显示装置及制造方法
KR102544985B1 (ko) * 2016-02-25 2023-06-20 삼성디스플레이 주식회사 스트레처블 디스플레이 장치
KR20180046422A (ko) * 2016-10-27 2018-05-09 삼성디스플레이 주식회사 플렉시블 표시 장치 및 그 제조 방법
CN206757265U (zh) * 2017-05-12 2017-12-15 京东方科技集团股份有限公司 一种基板及显示装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180052493A1 (en) * 2016-08-18 2018-02-22 Samsung Display Co., Ltd. Display panel
CN108933148A (zh) * 2018-07-31 2018-12-04 上海天马微电子有限公司 显示面板和显示装置
CN109189265A (zh) * 2018-08-28 2019-01-11 上海天马微电子有限公司 一种可拉伸面板和柔性显示装置
CN109036145A (zh) * 2018-08-31 2018-12-18 上海天马微电子有限公司 一种可拉伸显示面板和柔性显示装置
CN109378332A (zh) * 2018-09-30 2019-02-22 昆山国显光电有限公司 柔性显示面板及显示装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230378195A1 (en) * 2022-05-18 2023-11-23 Japan Display Inc. Flexible electronic device
US12593505B2 (en) * 2022-05-18 2026-03-31 Magnolia White Corporation Flexible electronic device

Also Published As

Publication number Publication date
CN111816675B (zh) 2023-06-23
CN111816675A (zh) 2020-10-23

Similar Documents

Publication Publication Date Title
US20160105950A1 (en) Electronic Device Having Structured Flexible Substrates With Bends
CN109920334B (zh) 一种阵列基板及显示装置
CN108550587B (zh) 柔性显示基板及其制作方法、柔性显示装置
US11380752B2 (en) Stretchable display panel, display apparatus, and method of fabricating stretchable display panel
CN107994036B (zh) 基板及其制备方法、显示面板、显示装置
US11468832B2 (en) Array substrate and method for manufacturing same, display panel, and display device
WO2019019618A1 (zh) 阵列基板及其制备方法、显示面板、显示装置
US12217633B2 (en) Display panel and manufacturing method thereof, display apparatus
WO2022088319A1 (zh) 支撑膜层及柔性显示面板
CN111584606A (zh) 显示基板、显示装置及其制作方法
CN110690252A (zh) 显示装置及制造显示装置的方法
US11251399B2 (en) Display substrate, display apparatus, method of fabricating display substrate
CN105826249B (zh) 金属层制作方法、功能基板及其制作方法、以及显示装置
CN104103648A (zh) 柔性显示设备、柔性显示母板及其制作方法
WO2015032202A1 (zh) 一种阵列基板、柔性显示器件及阵列基板的制作方法
CN104950535B (zh) 一种柔性阵列基板及显示装置
CN107731881A (zh) 柔性显示面板及其制造方法、柔性显示装置
CN111653205B (zh) 可拉伸显示面板和显示装置
CN103337501A (zh) 阵列基板及其制作方法、平板显示装置
WO2020124968A1 (zh) 柔性衬底及其制备方法
WO2020206971A1 (zh) 可拉伸显示面板及其制备方法、显示装置
WO2018188388A1 (zh) 阵列基板的制备方法、阵列基板、显示面板和显示装置
CN109860203B (zh) 阵列基板及其制造方法及显示屏
CN111326607A (zh) 可拉伸显示面板及其制备方法、可拉伸显示装置
TWI651698B (zh) 可撓性顯示器及其製造方法

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: 19924051

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19924051

Country of ref document: EP

Kind code of ref document: A1