WO2023197348A1 - 显示面板 - Google Patents

显示面板 Download PDF

Info

Publication number
WO2023197348A1
WO2023197348A1 PCT/CN2022/087927 CN2022087927W WO2023197348A1 WO 2023197348 A1 WO2023197348 A1 WO 2023197348A1 CN 2022087927 W CN2022087927 W CN 2022087927W WO 2023197348 A1 WO2023197348 A1 WO 2023197348A1
Authority
WO
WIPO (PCT)
Prior art keywords
functional layer
functional
sub
layer
display panel
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/CN2022/087927
Other languages
English (en)
French (fr)
Inventor
赵宸
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 Semiconductor Display Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Semiconductor Display 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 Semiconductor Display Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority to US17/755,866 priority Critical patent/US20240155915A1/en
Publication of WO2023197348A1 publication Critical patent/WO2023197348A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/8794—Arrangements for heating and cooling
    • 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
    • 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
    • H10K2102/351—Thickness
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
    • H10K59/65—OLEDs integrated with inorganic image sensors
    • 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

  • the present application relates to the field of display technology, particularly to the field of display panel manufacturing technology, and specifically to the display panel.
  • OLED Organic Light-Emitting Diode, organic electro-laser display
  • OLED Organic Light-Emitting Diode, organic electro-laser display
  • the film layer carrying the panel will deform under the action of external force during the production process, and the deformation will be transmitted to the panel.
  • panels produced using depolarizer technology cannot eliminate polarizers because they do not have polarizers.
  • the imprinting phenomenon caused by the above-mentioned deformation under external light irradiation reduces the appearance of OLED flexible product screens.
  • the existing OLED flexible products produced using depolarizer technology have the problem of poor appearance of the screen due to the deformation of the film layer carrying the panel, which is in urgent need of improvement.
  • the purpose of this application is to provide a display panel that solves the technical problem of poor appearance of the screen due to the deformation of the film layer carrying the panel in existing OLED flexible products produced using depolarizer technology.
  • Embodiments of the present application provide a display panel, which includes:
  • a substrate including a display area, the display area including a deformation sub-area and a normal sub-area;
  • a light-emitting layer located on one side of the substrate and opposite to the display area;
  • a functional layer located on the side of the substrate away from the light-emitting layer, includes a first functional part opposite to the deformation sub-region and a second functional part opposite to the normal sub-region;
  • the elastic modulus of the first functional part is greater than the elastic modulus of the second functional part.
  • the present application provides a display panel, which includes: a substrate including a display area, the display area including a deformation sub-area and a normal sub-area; and a luminescent layer located on one side of the substrate and opposite to the display area. ;
  • the functional layer located on the side of the substrate away from the light-emitting layer, includes a first functional part opposite to the deformation sub-region, and a second functional part opposite to the normal sub-region, the first functional part being opposite to the normal sub-region;
  • the elastic modulus of the functional part is greater than the elastic modulus of the second functional part.
  • the elastic modulus of the first functional part is greater than the elastic modulus of the second functional part, so that under the same stress, the strain of the first functional part is smaller than the strain of the second functional part to produce smaller deformation.
  • the strain of the first functional part is smaller than the strain of the second functional part to produce smaller deformation.
  • Figure 1 is a cross-sectional view of an existing display panel produced using depolarizer technology.
  • FIG. 2 is a cross-sectional view of a first display panel provided by an embodiment of the present application.
  • Figure 3 is a cross-sectional view of a second display panel provided by an embodiment of the present application.
  • Figure 4 is a cross-sectional view of a third display panel provided by an embodiment of the present application.
  • FIG. 5 is a cross-sectional view of a fourth display panel provided by an embodiment of the present application.
  • FIG. 6 is a schematic top view or bottom view of a functional layer provided by an embodiment of the present application.
  • FIG. 7 is a cross-sectional view of a fifth display panel provided by an embodiment of the present application.
  • FIG. 8 is a cross-sectional view of a sixth display panel provided by an embodiment of the present application.
  • Figure 9 is a schematic top view or bottom view of another functional layer provided by an embodiment of the present application.
  • Figure 10 is a cross-sectional view of a seventh display panel provided by an embodiment of the present application.
  • FIG. 11 is a cross-sectional view of an eighth display panel provided by an embodiment of the present application.
  • FIG. 12 is a schematic top view or bottom view of yet another functional layer provided by an embodiment of the present application.
  • Figure 13 is a cross-sectional view of a functional layer provided by an embodiment of the present application.
  • any film layer of the load-bearing panel 000 is deformed due to external force during the production process.
  • the first film layer 001 located at the bottom is used.
  • the deformation caused by external force will be taken as an example.
  • the deformation in the first film layer 001 will act on the second film layer 002 located on the first film layer 001.
  • the deformation will gradually propagate toward the direction of the panel layer, causing the panel 000 to also Deformation occurs.
  • the above-mentioned deformation will affect the transmission direction of light, resulting in large differences in the reflection direction of light at different locations on the panel 000.
  • the present application provides a display panel, which includes but is not limited to the following embodiments and combinations of the following embodiments.
  • the display panel 100 includes: a support layer 10; a panel layer 20 located on a side of the support layer 10 close to the light-emitting side of the display panel 100; a functional layer 30, Located on the side of the support layer 10 away from the panel layer 20 , the functional layer 30 includes a first functional part 301 and a second functional part 302 arranged adjacently.
  • the elastic modulus of the first functional part 301 is greater than The elastic modulus of the second functional part 302.
  • the panel layer 20 in the display panel 100 includes: a substrate 201 including a display area, the display area includes a deformation sub-area 2011 and a normal sub-area 2012; a light-emitting layer 202, located on one side of the substrate 201 and opposite to the display area; the functional layer 30 is located on the side of the substrate 201 away from the light-emitting layer 202, and includes a layer opposite to the deformation sub-region 2011.
  • the first functional part 301 and the second functional part 302 are arranged opposite to the normal sub-area 2012.
  • a side of the panel layer 20 close to the light-emitting side of the display panel 100 may be provided with a substrate, an array substrate layer and a light-emitting layer.
  • the substrate may be a flexible substrate or a rigid substrate.
  • the constituent material of the flexible substrate may include but is not limited to polyimide, and the constituent material of the rigid substrate may include but is not limited to silicon dioxide; the array substrate may include There are multiple pixel circuit units.
  • the light-emitting layer may include multiple light-emitting parts corresponding to the multiple pixel circuit units. Multiple light-emitting parts that emit different colors are formed into a light-emitting unit.
  • Each pixel circuit unit is electrically connected to the corresponding The light-emitting part is used to control the light-emitting condition of the corresponding light-emitting part.
  • the light-emitting condition of the light-emitting unit is jointly controlled by the light-emitting conditions of the corresponding multiple light-emitting parts. Furthermore, the multiple light-emitting units emit light to present the display screen of the display panel 100 .
  • the support layer 10 can be used to carry the panel layer 20 to avoid being unable to support the film layer located on the substrate in the display panel 100 due to insufficient hardness of the substrate, and the support layer 10 can be used to protect the panel layer 20 to avoid failure during the assembly process.
  • the elastic modulus of the support layer 10 may be greater than or equal to 2.5 GPa, and the constituent materials of the support layer 10 may include but are not limited to polyethylene terephthalate, optical COP materials, triacetate fiber films, and acrylic.
  • the functional layer 30 is located at the bottom of the display panel 100.
  • the functional layer 30 can dissipate heat to the panel layer 20 to avoid device damage caused by heat accumulation.
  • the deformation resistance of a material refers to the material's ability to resist external force without deformation, that is, the degree of deformation of the material under unit stress. The smaller the deformation amount, the stronger the material's resistance to deformation.
  • Elasticity can be used Modulus indicates that during the elastic deformation stage, the stress and strain experienced by the object are directly proportional, and the proportional coefficient is called the elastic modulus.
  • the functional layer 30 is located at the bottom of the display panel 100, the hardness and elastic modulus of the material of the functional layer 30 are generally small, and the probability of the functional layer 30 being acted upon by external forces is relatively high. Based on the above discussion, It can be seen that the functional layer 30 has a greater corresponding strain under the same stress, and the probability of being subjected to stress is greater, that is, it can be considered that the functional layer 30 has a greater probability of deformation.
  • the elastic moduli of different areas in the functional layer 30 are set differently, and the elastic modulus of the adjacently arranged first functional part 301 and the elastic modulus of the second functional part 302 are set to Differently, for example, the elastic modulus of the first functional part 301 may be greater than the elastic modulus of the second functional part 302.
  • the strain of the first functional part 301 may be smaller than that of the second functional part 302. strain to produce smaller deformation. Therefore, the distribution of the first functional part 301 and the second functional part 302 in the functional layer 30 can be reasonably set according to the actual situation to improve the phenomenon of deformation of the functional layer 30 due to external force. The appearance of the screen of the display panel 100 is improved.
  • the support layer 10 is made of polyimide to further support the panel layer 20 .
  • the display panel 100 may also include: a cover plate located on the side of the panel layer 20 away from the support layer 10 , and a glue layer located between the cover plate and the panel layer 20 .
  • the cover plate layer is formed of materials including but not limited to Polycarbonate, the constituent materials of the glue layer include but are not limited to optical glue.
  • the display panel 100 further includes: a photosensitive device 40 , a first through hole 303 is provided in the first functional part 301 , and the photosensitive device 40 is located on the first inside the through hole 303.
  • the first through hole 303 may or may not penetrate through the first functional part 301.
  • the display panel 100 may also include a housing for accommodating the photosensitive device 40, the support layer 10, the panel layer 20 and the functional layer 30.
  • the photosensitive device 40 may also be fixed to the housing.
  • the photosensitive device 40 can be used for, but is not limited to, fingerprint recognition and photography.
  • the number and size of the first through holes 303 are not limited here.
  • the number of first through holes 303 may be equal to the number of photosensitive devices 40.
  • the number of first through holes 303 may be smaller than the number of photosensitive devices 40;
  • the size of the first through hole 303 can be larger than the size of the photosensitive device 40 , that is, the first functional portion 301 can be arranged around the photosensitive device 40 to prevent the light irradiating around the photosensitive device 40 from being received by the photosensitive device 40 , and to prevent the light from being received by the photosensitive device 40 during operation. External impurities fall onto the photosensitive device 40.
  • the thickness of the first functional part 301 can be greater than or equal to the thickness of the photosensitive device 40 to prevent the casing of the display panel 100 from scratching the bottom of the photosensitive device 40.
  • the first through hole 303 is provided in the first functional part 301 with a larger elastic modulus in the functional layer 30 , and the stress distribution around the first through hole 303 in the entire functional layer 30 is denser.
  • the display panel 100 further includes: a fixing layer 50 , the panel layer 20 is bent from the side of the functional layer 30 close to the light-emitting side of the display panel 100 to The functional layer 30 is on one side away from the light emitting side of the display panel 100 , and is fixed to the side of the functional layer 30 away from the light emitting side of the display panel 100 through the fixing layer 50 ; wherein, the third A functional part 301 is at least disposed opposite to the fixing layer 50 .
  • the substrate 201 also includes a non-display area.
  • the non-display area includes a bending sub-area 2013 and a terminal sub-area disposed in the bending sub-area 2013 away from the display area. 2014, the terminal sub-region 2014 is fixed to the side of the functional layer 30 away from the light-emitting layer 202 through the bending sub-region 2013, and the bending sub-region 2013 overlaps the deformation sub-region 2011.
  • the fixing layer 50 can be connected to the end of the functional layer 30 and the end of the panel layer 20 respectively to fix the curved shape of the panel layer 20 . Furthermore, in order to improve the stability of the curved shape of the panel layer 20 , the thickness of the fixing layer 50 may be equal to the distance between the end of the functional layer 30 and the end of the panel layer 20 .
  • the fixing layer 50 may include: a base material layer and an adhesive layer located on both sides of the base material layer.
  • the base material layer may be made of, but is not limited to, polyester resin or foam plastic.
  • the adhesive layer may be made of, but is not limited to, polyester resin or foam plastic. Light-curing adhesive, epoxy resin bonding adhesive, anaerobic adhesive, hot melt adhesive, pressure-sensitive adhesive or latex are the same.
  • one side of the fixing layer 50 can first be fixed to the end of the panel layer 20 away from the light emitting side of the display panel 100 , and then the panel layer 20 can be bent to
  • the side of the functional layer 30 away from the light emitting side of the display panel 100 makes the other side of the fixing layer 50 contact the end of the functional layer 30 away from the light emitting side of the display panel 100 , and then an external force is applied to make the fixing layer 50
  • the other side is fixed to the functional layer 30. If the elastic modulus of the first functional part 301 is small, the portion of the first functional part 301 opposite to the fixed layer 50 will undergo greater deformation during this process.
  • the first functional part 301 with a larger elastic modulus in the functional layer 30 is at least arranged opposite to the fixed layer 50, and the other side of the fixed layer 50 is fixed to the functional layer 30.
  • the elastic modulus of the first functional part 301 is greater than the elastic modulus of the second functional part 302
  • the other side fixed to the functional layer 30 has an impact on the appearance of the screen of the display panel 100 .
  • this application is not limited to providing the first through hole 303 on at least one side of the first functional part 301 away from the panel layer 20 , and the first functional part 301 is at least provided opposite to the fixing layer 50 .
  • the area with greater stress during the production or use of the display panel 100 can be set as the first functional portion 301 with a greater elastic modulus to reduce the degree of deformation as much as possible, thereby improving the display.
  • the appearance of the panel 100 screen is tasteful.
  • the first functional part 301 can be disposed opposite at least to the edge of the support layer 10 .
  • the first functional part 301 can also be arranged opposite the edge of the support layer 10 to further improve the anti-deformation ability of the edge of the functional layer 30. to improve the stability of the display panel 100.
  • the elastic modulus of the first functional part 301 is greater than or equal to 100 GPa.
  • the yield strength of the first functional part 301 may be greater than or equal to 1000 MPa
  • the Vickers hardness of the first functional part 301 may be greater than or equal to 400HV.
  • the constituent materials of the first functional part may include stainless steel, carbon fiber, and copper alloy. At least one of them, wherein the copper alloy can be prepared by doping copper with at least one of nickel and zinc.
  • stainless steel and carbon fiber have larger yield strength, Vickers hardness, and elastic modulus.
  • copper alloy has smaller yield strength, Vickers hardness, and elastic modulus, it can have certain functions.
  • the thermal conductivity of the second functional part 302 is greater than 200 W/m ⁇ degree to realize the function of the display panel 100 .
  • the elastic modulus of the second functional part 302 may be less than or equal to 70 GPa
  • the yield strength of the second functional part 302 may be less than or equal to 500 MPa
  • the Vickers hardness of the second functional part 302 may be greater than or equal to 100 HV.
  • the component material of the second functional part 302 may include at least one of copper and aluminum.
  • the second functional part 302 may be made of copper
  • the thermal conductivity of the second functional part 302 may be 380 W/m ⁇ Spend.
  • the first functional part 301 includes a stacked first sub-functional layer 3011 and a second sub-functional layer 3012.
  • the functional coefficient of the second sub-functional layer 3012 is Different from the functional coefficient of the first sub-functional layer 3011.
  • the relative size relationship between the functional coefficient of the second sub-functional layer 3012 and the functional coefficient of the first sub-functional layer 3011 is not limited here. It is intended to emphasize that the elastic modulus of the first functional part 301 is greater than Under the premise of the elastic modulus of the second functional part 302, there is a difference between the functional coefficient of the second sub-functional layer 3012 and the functional coefficient of the first sub-functional layer 3011.
  • the functional coefficients of the first sub-functional layer 3011 and the functional coefficients of the second sub-functional layer 3012 arranged in a stack in the first functional part 301 are differentiated to avoid using the same function.
  • the first functional part 301 is made of a material with a larger elastic modulus, which results in a smaller overall functional coefficient of the first functional part 301, thus failing to meet the functional requirements of the display panel 100.
  • the first sub-functional layer 3011, the second One of the functional coefficients of the sub-functional layer 3012 may be larger to increase the functional coefficient of the first functional part 301 .
  • the composition material of one of the first sub-functional layer 3011 and the second sub-functional layer 3012 is the same as the composition material of the second functional part 302 , and the two are formed into one piece.
  • the elastic modulus of the first functional part 301 is greater than the elastic modulus of the second functional part 302, and the functional coefficient of the second sub-functional layer 3012 is different from the functional coefficient of the first sub-functional layer 3011.
  • a material with an elastic modulus equal to the second functional part 302 and a larger functional coefficient can be selected to simultaneously produce the second sub-functional layer 3012 and the second functional part 302, or to produce the first sub-functional layer 3011 and the second functional part.
  • the part 302 is made to save processes and improve the production efficiency of the display panel 100.
  • the first sub-functional layer 3011 and the second sub-functional layer 3012 has the same composition material as the second functional part 302. It is intended to indicate that there is The component material of one is the same as the component material of the second functional part 302 and can be integrally molded. Both the above two embodiments can improve the production of the display panel 100 on the basis of improving the functional coefficient of the first functional part 301 efficiency.
  • the second sub-functional layer 3012 located above the first sub-functional layer 3011 may be made of the same material as the second functional part 302 , and the two may be integrally formed. Reference may be made to the relevant description of the composition material of the second functional part 302 above; as shown in FIG.
  • the composition material of the first sub-functional layer 3011 located below the second sub-functional layer 3012 may be the same as the composition of the second functional part 302 .
  • the materials are the same, and the two are integrally formed.
  • the constituent materials of the two please refer to the relevant description of the constituent materials of the second functional part 302 mentioned above.
  • the functional layer 30 includes: a first functional layer, which is at least arranged opposite to the display area, and includes a first functional layer arranged opposite to the deformation sub-area 2011 . Groove 304; a second functional layer, filled in the first groove 304, the elastic modulus of the second functional layer is greater than the elastic modulus of the first functional layer; wherein, the first functional part 301 includes the portion of the first functional layer corresponding to the deformation sub-region 2011 and the second functional layer arranged in a stack.
  • the second functional part 302 and the second sub-functional layer 3012 form the first functional layer, and the first sub-functional layer 3011 is formed as the second functional layer.
  • the second sub-functional layer 3012 can be made of the same material and integrally formed.
  • the thickness of the portion of the first functional layer opposite to the normal sub-region 2012 is greater than or equal to the thickness of the second functional layer; specifically, As shown in FIGS. 7 to 9 , when the thickness of the portion of the first functional layer opposite to the normal sub-region 2012 is greater than the thickness of the second functional layer, the first groove 304 is at least formed by a portion of the first functional layer. As shown in Figure 3, Figure 7 to Figure 9, when the thickness of the portion of the first functional layer opposite to the normal sub-region 2012 is equal to the thickness of the second functional layer, it can be considered that the horizontal direction, the side of the first functional layer close to the second functional layer is formed as the first groove mentioned above.
  • the first functional layer can be understood as the second functional part 302, and the second functional layer can be understood as the first Functional Section 301. Further, the thickness of the portion of the first functional layer opposite to the normal sub-region is 30um to 50um, and the thickness of the second functional layer is 15um to 30um.
  • the second functional part 302 includes a stacked third sub-functional layer 3021 and a fourth sub-functional layer 3022.
  • the elastic mold of the fourth sub-functional layer 3022 is The amount is different from the elastic modulus of the third sub-functional layer 3021; wherein, the composition material of one of the third sub-functional layer 3021, the fourth sub-functional layer 3022 and the composition of the first functional part 301 The materials are the same and both are molded in one piece.
  • the relative size relationship between the elastic modulus of the third sub-functional layer 3021 and the fourth sub-functional layer 3022 is not limited here. It is intended to emphasize that the two must meet the elastic modulus of the first functional part 301. On the premise that the elastic modulus is greater than the elastic modulus of the second functional part 302, there is a difference between the elastic modulus of the third sub-functional layer 3021 and the elastic modulus of the fourth sub-functional layer 3022.
  • the elastic modulus of the first sub-functional layer 3011 and the elastic modulus of the second sub-functional layer 3012 arranged in a stack in the first functional part 301 are differentiated, so as to avoid Using the same material with a large functional coefficient to prepare the first functional part 301 results in a smaller elastic modulus of the entire first functional part 301, thus failing to meet the hardness requirements of the display panel 100, such as the third sub-functional layer 3021,
  • One of the fourth sub-functional layer 3022 may have a larger elastic modulus to increase the elastic modulus of the second functional part 302 .
  • one of the third sub-functional layer 3021 and the fourth sub-functional layer 3022 is made of the same material as the first functional part 301, and both are integrally formed. That is, in this embodiment, an elastic mold can be selected.
  • the third sub-functional layer 3021 and the first functional part 301 are simultaneously made with an amount equal to the material of the first functional part 301, or the fourth sub-functional layer 3022 and the first functional part 301 are made to save manufacturing processes and improve the performance of the display panel 100. Production efficiency.
  • the composition material of the fourth sub-functional layer 3022 can be the same as the composition material of the first functional part 301, and the two are integrally formed.
  • the composition materials of the two please refer to the above about the second functional part.
  • Relevant description of the constituent materials of 302; as shown in Figure 11, the constituent materials of the third sub-functional layer 3021 can be the same as the constituent materials of the first functional part 301, and the two are integrally formed.
  • the constituent materials of the two please refer to the above. Relevant description about the constituent materials of the first functional part 301.
  • the functional layer 30 includes: a first functional layer, which is arranged opposite to the normal sub-area 2012; a second functional layer, which is arranged opposite to at least the display area. , and includes a second groove 305 arranged opposite to the normal sub-region 2012, the second groove 305 is filled with the first functional layer, and the elastic modulus of the second functional layer is greater than the first functional layer.
  • the first functional part 301 and the fourth sub-functional layer 3022 form the second functional layer, and the third sub-functional layer 3021 is formed as the first functional layer. Furthermore, the first functional part 301 in the second functional layer
  • the fourth sub-functional layer 3022 can be made of the same material and integrally formed.
  • the thickness of the portion of the second functional layer opposite to the deformation sub-region 2011 is greater than the thickness of the first functional layer.
  • the second groove 305 is formed at least by two adjacent side surfaces of the first functional layer, based on the fact that the elastic modulus of the second functional layer is greater than the elastic modulus of the first functional layer.
  • the second functional layer with a larger elastic modulus is set to correspond to the display area, which can further improve the hardness of the display panel 100 .
  • the thickness of the portion of the second functional layer opposite to the deformation sub-region 2011 is 20 um to 50 um
  • the thickness of the first functional layer is 10 um to 30 um.
  • the first functional layer includes at least one of copper and aluminum
  • the second functional layer includes stainless steel, At least one type of carbon fiber.
  • the second functional part 302 and the second sub-functional layer 3012 of the first functional layer are composed of at least one of copper and aluminum.
  • the constituent material of the first sub-functional layer 3011 formed as the second functional layer includes at least one of stainless steel and carbon fiber; as shown in Figures 10 to 12, combined with the above discussion, it can be seen that the first sub-functional layer 3011 forming the second functional layer
  • the constituent materials of the first functional part 301 and the fourth sub-functional layer 3022 include at least one of stainless steel and carbon fiber
  • the constituent materials of the third sub-functional layer 3021 formed as the first functional layer include at least one of copper and aluminum.
  • the sum of the thickness of the first sub-functional layer 3011 and the thickness of the second sub-functional layer 3012 is equal to the thickness of the second functional part 302 .
  • the first groove 304, the second functional portion 302, and the second sub-functional layer 3012 can be formed on one side of a copper film layer made of copper with the same thickness through, but not limited to, an etching process. , and then form a stainless steel film layer made of stainless steel as the first sub-functional layer 3011 in the first groove 304 by but not limited to lamination.
  • the thickness of the copper film layer can be 30 nanometers to 50 nanometers
  • the thickness of the stainless steel film layer can be 15 nanometers to 30 nanometers
  • the thickness of the second functional part 302 can be 30 nanometers to 50 nanometers
  • the first sub-functional layer 3011 The thickness can be from 15 nm to 30 nm.
  • the photosensitive device 40 and the fixing layer 50 can be disposed close to the same end of the display panel 100.
  • the first groove 304 formed on one side of the copper film layer can be at least as close as
  • the photosensitive device 40 and the fixing layer 50 in the display panel 100 are arranged oppositely, and the same first functional part 301 can be formed on the photosensitive device 40 and the fixing layer 50 at the same time so that they are arranged oppositely.
  • the sum of the thickness of the third sub-functional layer 3021 and the thickness of the fourth sub-functional layer 3022 may be equal to the thickness of the first functional part 301 .
  • the second groove 305, the first functional part 301, and the fourth sub-functional layer 3022 may be formed on one side of the stainless steel film layer with the same thickness and made of stainless steel through, but not limited to, an etching process. , and then form a copper film layer made of copper as the third sub-functional layer 3021 in the second groove 305 by but not limited to lamination and sputtering.
  • the thickness of the stainless steel film layer can be 20 nanometers to 50 nanometers
  • the thickness of the fourth sub-functional layer 3022 can be 10 nanometers to 30 nanometers, that is, the thickness of the first functional part 301 in Figure 7 can be 20 nanometers to 50 nanometers.
  • the photosensitive device 40 and the fixing layer 50 can be disposed close to the same end of the display panel 100.
  • the second groove 305 formed on one side of the stainless steel film layer can be at least as close as The portions of the display panel 100 excluding the photosensitive device 40 and the fixing layer 50 are arranged opposite each other.
  • the same first functional portion 301 can be formed to be opposite to the photosensitive device 40 and the fixing layer 50 at the same time.
  • the first functional part 301 can also be made of the same material
  • the second functional part 302 can also be made of the same material.
  • hot melt glue can be used to connect the first functional parts with the same thickness.
  • the side portions of the first functional portion 301 and the second functional portion 302 form the functional layer 30 with the same thickness everywhere.
  • the functional layer 30 may also include an adhesive layer 306 located on the first functional part 301 and the second functional part 302, a flexible layer 307 located on the adhesive layer 306, and a bubble located on the flexible layer 307.
  • the constituent material of the adhesive layer 306 may include but is not limited to pressure-sensitive adhesive
  • the constituent material of the flexible layer 307 may include but is not limited to polyimide
  • the constituent material of the foam layer 308 may be foam
  • the mesh glue layer 309 may be made of foam. It can be made of glass mesh cloth as the base material and coated with dry latex emulsion.
  • first functional part 301 and the second functional part 302 can enhance the hardness, function and shielding of electromagnetic fields of the functional layer 30, the flexible layer 307 can improve the mechanical properties of the functional layer 30, the foam layer has a buffering effect, and the mesh glue The layer can block light and eliminate gases between the film layers. Furthermore, a graphite layer may be provided on the side of the adhesive layer 306 away from the flexible layer 307 to uniformize the heat of the functional layer 30 to avoid heat concentration.
  • the present application provides a display panel, which includes: a substrate including a display area, the display area including a deformation sub-area and a normal sub-area; and a luminescent layer located on one side of the substrate and opposite to the display area. ;
  • the functional layer located on the side of the substrate away from the light-emitting layer, includes a first functional part opposite to the deformation sub-region, and a second functional part opposite to the normal sub-region, the first functional part being opposite to the normal sub-region;
  • the elastic modulus of the functional part is greater than the elastic modulus of the second functional part.
  • the elastic modulus of the first functional part is greater than the elastic modulus of the second functional part, so that under the same stress, the strain of the first functional part is smaller than the strain of the second functional part to produce smaller deformation.
  • the strain of the first functional part is smaller than the strain of the second functional part to produce smaller deformation.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laminated Bodies (AREA)

Abstract

一种显示面板(100)，包括基板(201)、发光层(202)和功能层(30)，基板(201)中的显示区包括形变子区(2011)和正常子区(2012)，发光层(202)位于基板(201)的一侧且与显示区相对设置，功能层(30)位于基板(201)远离发光层(202)的一侧，包括与形变子区(2011)相对设置的第一功能部(301)、与正常子区(2012)相对设置的第二功能部(302)，第一功能部(301)的弹性模量大于第二功能部(302)的弹性模量。

Description

显示面板 技术领域
本申请涉及显示技术领域，尤其涉及显示面板制造技术领域，具体涉及显示面板。
 背景技术
OLED(Organic Light-Emitting Diode,有机电激光显示)显示器具有发光亮度高、视角广、响应速度快、超薄、质量轻等特点，并可制作为柔性产品。
目前，OLED柔性产品中，承载面板的膜层在制作过程中在外力作用下会产生形变，并且会向面板中传递该形变，其中采用去偏光片技术制作的面板由于未设置偏光片，无法消除在外界光照射下由上述形变导致的印痕现象，降低了OLED柔性产品屏幕的外观品味。
因此，现有的采用去偏光片技术制作的OLED柔性产品存在因承载面板的膜层形变造成屏幕的外观品味较低的问题，急需改善。
 技术问题
本申请的目的在于提供显示面板，解决了现有的采用去偏光片技术制作的OLED柔性产品中因承载面板的膜层形变造成屏幕的外观品味较低的技术问题。
 技术解决方案
本申请实施例提供显示面板，所述显示面板包括：
基板，包括显示区，所述显示区包括形变子区和正常子区；
发光层，位于所述基板的一侧且与所述显示区相对设置；
功能层，位于所述基板远离所述发光层的一侧，包括与所述形变子区相对设置的第一功能部、与所述正常子区相对设置的第二功能部；
其中，所述第一功能部的弹性模量大于所述第二功能部的弹性模量。
 有益效果
本申请提供了显示面板，所述显示面板包括：基板，包括显示区，所述显示区包括形变子区和正常子区；发光层，位于所述基板的一侧且与所述显示区相对设置；功能层，位于所述基板远离所述发光层的一侧，包括与所述形变子区相对设置的第一功能部、与所述正常子区相对设置的第二功能部，所述第一功能部的弹性模量大于所述第二功能部的弹性模量。其中，本申请中将第一功能部的弹性模量大于第二功能部的弹性模量，使得在同等应力下，第一功能部的应变小于第二功能部的应变以产生较小的形变，以改善功能层受到外力而发生形变的现象，从而改善显示面板的屏幕的外观品味。
 附图说明
下面通过附图来对本申请进行进一步说明。需要说明的是，下面描述中的附图仅仅是用于解释说明本申请的一些实施例，对于本领域技术人员来讲，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它的附图。
图1为现有的采用去偏光片技术制作的显示面板的截面意图。
图2为本申请实施例提供的第一种显示面板的截面意图。
图3为本申请实施例提供的第二种显示面板的截面意图。
图4为本申请实施例提供的第三种显示面板的截面意图。
图5为本申请实施例提供的第四种显示面板的截面意图。
图6为本申请实施例提供的一种功能层的俯视示意图或者仰视示意图。
图7为本申请实施例提供的第五种显示面板的截面意图。
图8为本申请实施例提供的第六种显示面板的截面意图。
图9为本申请实施例提供的另一种功能层的俯视示意图或者仰视示意图。
图10为本申请实施例提供的第七种显示面板的截面意图。
图11为本申请实施例提供的第八种显示面板的截面意图。
图12为本申请实施例提供的再一种功能层的俯视示意图或者仰视示意图。
图13为本申请实施例提供的一种功能层的截面意图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整的描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其它实施例，都属于本申请保护的范围。
本申请中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或模块的过程、方法、系统、产品或设备没有限定于已列出的步骤或模块，而是可选地还包括没有列出的步骤或模块，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或模块。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。另外，还需要说明的是，附图提供的仅仅是和本申请关系比较密切的结构，省略了一些与申请关系不大的细节，目的在于简化附图，使申请点一目了然，而不是表明实际中装置就是和附图一模一样，不作为实际中装置的限制。
对于采用去偏光片技术制作的OLED柔性产品而言，如图1所示，承载面板000的任意膜层在制作过程中因为外力作用下产生的形变，此处以位于最下方的第一膜层001因为外力作用产生形变为例进行说明，第一膜层001中的形变会作用于位于第一膜层001上的第二膜层002，形变逐步向靠近面板层的方向传递，导致位于面板000也产生形变，上述形变会影响光线的传输方向，造成面板000上不同位置对于光线的反射方向差异较大，而面板000上由于未设置偏光片，无法消除在外界光照射下由上述形变导致的印痕现象，降低了OLED柔性产品屏幕的外观品味。本申请基于上述技术问题提出了下面技术方案。
本申请提供显示面板，所述显示面板包括但不限于以下实施例以及以下实施例的组合。
在一实施例中，如图2所示，所述显示面板100包括：支撑层10；面板层20，位于所述支撑层10靠近所述显示面板100的出光侧的一侧；功能层30，位于所述支撑层10远离所述面板层20的一侧，所述功能层30包括相邻设置的第一功能部301和第二功能部302，所述第一功能部301的弹性模量大于所述第二功能部302的弹性模量。具体的，结合图2和图3所示，所述显示面板100中的所述面板层20包括：基板201，包括显示区，所述显示区包括形变子区2011和正常子区2012；发光层202，位于所述基板201的一侧且与所述显示区相对设置；所述功能层30位于所述基板201远离所述发光层202的一侧，包括与所述形变子区2011相对设置的所述第一功能部301、与所述正常子区2012相对设置的第二功能部302。
其中，面板层20中靠近显示面板100的出光侧的一侧可以一侧设有衬底、阵列基板层和发光层。具体的，衬底可以为柔性衬底或者刚性衬底，柔性衬底的组成材料可以包括但不限于聚酰亚胺，刚性衬底的组成材料可以包括但不限于二氧化硅；阵列基板可以包括多个像素电路单元，发光层可以包括与多个像素电路单元一一对应的多个发光部，发出不同颜色的多个发光部形成为一发光单元，每一像素电路单元电性连接至对应的发光部，以控制对应的发光部的发光情况，发光单元的发光情况由对应的多个发光部的发光情况共同控制，进而多个发光单元的发光以呈现显示面板100的显示画面。
其中，支撑层10可以用于承载面板层20，避免由于衬底硬度不足而无法支撑显示面板100中位于衬底上的膜层，并且支撑层10可以用于保护面板层20，避免组装过程中光学器刮伤面板层20。具体的，支撑层10的弹性模量可以大于或等于2.5GPa，支撑层10的组成材料可以包括但不限于聚对苯二甲酸乙二醇酯、光学COP材料、三醋酸纤维薄膜、亚克力。
其中，功能层30位于显示面板100中的底部，例如功能层30可以对面板层20进行散热处理，避免热量堆积造成器件损坏。具体的，材料的抗形变能力是指材料抵抗外力而不发生变形的能力，也就是材料在单位的应力作用下形变程度，形变量越小说明这种材料的抗形变能力越强，可以用弹性模量表示，其中，在弹性变形阶段，物体受到的应力和应变成正比例关系，其比例系数称为弹性模量。需要注意的是，功能层30由于位于显示面板100中的底部，功能层30的组成材料的硬度和弹性模量一般均较小，且功能层30受到外力作用的概率较大，结合上文论述可知，功能层30在同等应力下对应的应变较大，也受到应力的概率较大，即可以认为功能层30产生形变的概率较大。
可以理解的，本实施例中对功能层30中不同区域的弹性模量进行了区别设置，将相邻设置的第一功能部301的弹性模量和第二功能部302的弹性模量设置为不同，例如第一功能部301的弹性模量可以大于第二功能部302的弹性模量，结合上文论述可知，在同等应力下，第一功能部301的应变可以小于第二功能部302的应变，以产生较小的形变，因此，可以根据实际情况合理设置功能层30中第一功能部301和第二功能部302的分布情况，以改善功能层30受到外力而发生形变的现象，以改善显示面板100的屏幕的外观品味。
在一实施例中，所述支撑层10的组成材料包括聚酰亚胺，以进一步支撑面板层20。具体的，所述显示面板100还可以包括：位于面板层20远离支撑层10的一侧的盖板、位于盖板和面板层20之间的胶层，盖板层的形成材料包括但不限于聚碳酸酯，胶层的组成材料包括但不限于光学胶。
在一实施例中，如图4所示，所述显示面板100还包括：感光器件40，所述第一功能部301中设有第一通孔303，所述感光器件40位于所述第一通孔303内。其中，第一通孔303可以贯穿或者不贯穿第一功能部301，在包含第一通孔303的第一功能部301形成于支撑层10远离所述面板层20的一侧后，再将感光器件40固定于第一通孔303内，此处对于第一通孔303的形成时机不做限制。进一步的，显示面板100还可以包括用于容纳感光器件40、支撑层10、面板层20和功能层30的壳体，感光器件40也可以固定于壳体。
具体的，感光器件40可以用于但不限于指纹识别、拍摄，此处对于第一通孔303的数量、尺寸不做限定。例如第一通孔303的数量可以等于感光器件40的数量，当然，当第一通孔303内设有至少两个感光器件40时，第一通孔303的数量可以小于感光器件40的数量；例如第一通孔303的尺寸可以大于感光器件40的尺寸，即第一功能部301可以围绕感光器件40而设置，避免照射至感光器件40四周的光线被感光器件40接收，以及避免工作过程中外界的杂质落入感光器件40上，进一步的，第一功能部301的厚度可以大于或等于感光器件40的厚度，避免显示面板100的壳体刮伤感光器件40的底部。
需要注意的是，在形成第一功能部301中的第一通孔303的过程中，以及在将包含第一通孔303的第一功能部301形成于支撑层10的过程中，若第一功能部301的弹性模量较小，由于作用于第一通孔303周围的应力分布较密集，导致第一通孔303的周围产生较大的形变。可以理解的，本实施例中，在功能层30中弹性模量较大的第一功能部301中设置第一通孔303，在整个功能层30中第一通孔303周围的应力分布较密集的时刻，由于第一功能部301的弹性模量大于第二功能部302的弹性模量，可以避免第一通孔303周围产生较大的形变，可以改善由于第一通孔303的设置对于显示面板100的屏幕的外观品味造成的影响。
在一实施例中，如图5所示，所述显示面板100还包括：固定层50，所述面板层20自所述功能层30靠近所述显示面板100的出光侧的一侧，弯曲至所述功能层30远离所述显示面板100的出光侧的一侧，并且通过所述固定层50固定于所述功能层30远离所述显示面板100的出光侧的一侧；其中，所述第一功能部301至少与所述固定层50相对设置。具体的，结合图3和图5所示，所述基板201还包括非显示区，所述非显示区包括弯折子区2013和设置在所述弯折子区2013远离所述显示区的端子子区2014，所述端子子区2014通过所述弯折子区2013固定于所述功能层30远离所述发光层202的一侧，所述弯折子区2013重叠于所述形变子区2011。
其中，固定层50的上侧、下侧可以分别连接于功能层30的端部和面板层20的端部，以固定面板层20的弯曲形态。进一步的，为了提高面板层20的弯曲形态的稳定性，固定层50的厚度可以等于功能层30的端部和面板层20的端部的间距。具体的，固定层50可以包括：基材层、位于基材层两侧的胶层，基材层的组成材料可以为但不限于涤纶树脂或者泡沫塑料，胶层的组成材料可以为但不限于光固化胶、环氧树脂粘结类胶、厌氧胶、热熔胶、压敏胶或者乳胶同。
需要注意的是，在面板层20的平直状态下，可以将固定层50的一侧先固定于面板层20的端部远离显示面板100的出光侧的一侧，再将面板层20弯曲至功能层30远离显示面板100的出光侧的一侧，使得固定层50的另一侧接触于功能层30的端部远离显示面板100的出光侧的一侧，再施加外力以使得固定层50的另一侧固定于功能层30，若第一功能部301的弹性模量较小，此过程中第一功能部301与固定层50相对设置的部分会产生较大的形变。可以理解的，本实施例中，将功能层30中弹性模量较大的第一功能部301至少与所述固定层50相对设置，在将固定层50的另一侧固定于功能层30的时刻，由于第一功能部301的弹性模量大于第二功能部302的弹性模量，可以避免第一功能部301与固定层50相对设置的部分产生较大的形变，可以改善由于固定层50的另一侧固定于功能层30对于显示面板100的屏幕的外观品味造成的影响。
综上所述，本申请中不限定于在第一功能部301中至少远离面板层20的一侧设有第一通孔303，以及第一功能部301至少与固定层50相对设置，可以理解为对于功能层30而言，可以将在显示面板100的制作或者使用过程中应力较大的区域设置为弹性模量较大的第一功能部301，以尽可能降低形变的程度，从而改善显示面板100的屏幕的外观品味。进一步的，结合图2和图6所示，第一功能部301可以至少与支撑层10的边缘相对设置，结合上文论述，在将在显示面板100的制作或者使用过程中应力较大的区域设置为弹性模量较大的第一功能部301的基础上，本实施例中还可以将第一功能部301与支撑层10的边缘相对设置，进一步提升功能层30的边缘的抗形变能力，以提高显示面板100的稳定性。
在一实施例中，如图2至图6所示，所述第一功能部301的弹性模量大于或者等于100GPa。具体的，第一功能部301的屈服强度可以大于或者等于1000兆帕，第一功能部301的维氏硬度可以大于或者等于400HV，例如第一功能部的组成材料可以包括不锈钢、碳纤维、铜合金中的至少一种，其中铜合金可以为铜掺杂镍、锌中的至少一者所制取。其中，不锈钢、碳纤维的屈服强度、维氏硬度、弹性模量较大，铜合金的屈服强度、维氏硬度、弹性模量虽然较小，但是可以具有一定的功能。
在一实施例中，如图2至图6所示，所述第二功能部302的导热系数大于200瓦/米·度，以实现显示面板100的功能。进一步的，第二功能部302的弹性模量可以小于或者等于70GPa，第二功能部302的屈服强度可以小于或者等于500兆帕，第二功能部302的维氏硬度可以大于或者等于100HV。具体的，第二功能部302的组成材料可以包括铜、铝中的至少一种，例如，可以采用铜制取第二功能部302，第二功能部302的导热系数可以为380瓦/米·度。
在一实施例中，结合图7至图9示，所述第一功能部301包括层叠设置的第一子功能层3011和第二子功能层3012，所述第二子功能层3012的功能系数不同于所述第一子功能层3011的功能系数。具体的，此处对第二子功能层3012的功能系数、第一子功能层3011的功能系数的相对大小关系不做限定，旨在强调两者在满足第一功能部301的弹性模量大于第二功能部302的弹性模量的前提下，第二子功能层3012的功能系数、第一子功能层3011的功能系数存在差异。
可以理解的，在本实施例中，对第一功能部301中叠层设置的第一子功能层3011的功能系数、第二子功能层3012的功能系数进行差异化设置，即可以避免采用同一种较大的弹性模量的材料制备第一功能部301而导致第一功能部301整体的功能系数较小，从而达不到显示面板100的功能需求，例如第一子功能层3011、第二子功能层3012两者中的功能系数的一者可以较大，以提升第一功能部301的功能系数。
在一实施例中，结合图7至图9示，所述第一子功能层3011、所述第二子功能层3012中的一者的组成材料与所述第二功能部302的组成材料相同，且两者一体成型。结合上文论述，第一功能部301的弹性模量大于第二功能部302的弹性模量，且第二子功能层3012的功能系数不同于第一子功能层3011的功能系数，进一步的，本实施例中，可以选取弹性模量等于第二功能部302且功能系数较大的材料同时制作第二子功能层3012和第二功能部302，或者制作第一子功能层3011和第二功能部302，以节省工艺制成，提高显示面板100的制作效率。
其中，本实施例中，对于第一子功能层3011、第二子功能层3012中的哪一者的组成材料与第二功能部302的组成材料相同不做限定，旨在表明两者中存在一者的组成材料与所述第二功能部302的组成材料相同，且可以一体成型即可，以上两实施例均可以在提升第一功能部301的功能系数的基础上提高显示面板100的制作效率。具体的，如图7所示，位于第一子功能层3011上方的第二子功能层3012的组成材料可以与第二功能部302的组成材料相同，且两者一体成型，两者的组成材料可以参考上文关于第二功能部302的组成材料的相关说明；如图8所示，位于第二子功能层3012下方的第一子功能层3011的组成材料可以与第二功能部302的组成材料相同，且两者一体成型，两者的组成材料可以参考上文关于第二功能部302的组成材料的相关说明。
具体的，结合图3、图7至图9所示，所述功能层30包括：第一功能层，至少与所述显示区相对设置，且包括与所述形变子区2011相对设置的第一凹槽304；第二功能层，填充于所述第一凹槽304中，所述第二功能层的弹性模量大于所述第一功能层的弹性模量；其中，所述第一功能部301包括层叠设置的所述第一功能层与所述形变子区2011对应的部分、所述第二功能层。结合上文论述，第二功能部302和第二子功能层3012组成第一功能层，第一子功能层3011形成为第二功能层，进一步的，第一功能层中的第二功能部302和第二子功能层3012可以采用相同的材料制作以一体成型。
其中，结合图3、图7至图9所示，所述第一功能层中与所述正常子区2012相对设置的部分的厚度，大于或者等于所述第二功能层的厚度；具体的，如图7至图9所示，当第一功能层中与所述正常子区2012相对设置的部分的厚度大于第二功能层的厚度时，第一凹槽304至少由第一功能层的相邻的两侧面形成，如图3、图7至图9所示，当第一功能层中与所述正常子区2012相对设置的部分的厚度等于第二功能层的厚度时，可以认为在水平方向，第一功能层靠近第二功能层的一侧形成为上文提及的第一凹槽，此时第一功能层可以理解为第二功能部302，第二功能层可以理解为第一功能部301。进一步的，所述第一功能层中与所述正常子区相对设置的部分的厚度为30um至50um，所述第二功能层的厚度为15um至30um。
在一实施例中，结合图10至图12示，所述第二功能部302包括层叠设置的第三子功能层3021和第四子功能层3022，所述第四子功能层3022的弹性模量不同于第三子功能层3021的弹性模量；其中，所述第三子功能层3021、所述第四子功能层3022中的一者的组成材料与所述第一功能部301的组成材料相同，且两者一体成型。
同理，此处对第三子功能层3021的弹性模量、第四子功能层3022的弹性模量的相对大小关系不做限定，旨在强调两者在满足第一功能部301的弹性模量大于第二功能部302的弹性模量的前提下，第三子功能层3021的弹性模量、第四子功能层3022的弹性模量存在差异。可以理解的，在本实施例中，对第一功能部301中叠层设置的第一子功能层3011的弹性模量、第二子功能层3012的弹性模量进行差异化设置，即可以避免采用同一种较大的功能系数的材料制备第一功能部301而导致第一功能部301整体的弹性模量较小，从而达不到显示面板100的硬度需求，例如第三子功能层3021、第四子功能层3022两者中的弹性模量的一者可以较大，以提升第二功能部302的弹性模量。
进一步的，第三子功能层3021、第四子功能层3022中的一者的组成材料与第一功能部301的组成材料相同，且两者一体成型，即本实施例中，可以选取弹性模量等于第一功能部301的材料同时制作第三子功能层3021和第一功能部301，或者制作第四子功能层3022和第一功能部301，以节省工艺制成，提高显示面板100的制作效率。同样，本实施例中，对于第三子功能层3021、第四子功能层3022中的哪一者的组成材料与第一功能部301的组成材料相同不做限定。具体的，如图10所示，第四子功能层3022的组成材料可以与第一功能部301的组成材料相同，且两者一体成型，两者的组成材料可以参考上文关于第二功能部302的组成材料的相关说明；如图11所示，第三子功能层3021的组成材料可以与第一功能部301的组成材料相同，且两者一体成型，两者的组成材料可以参考上文关于第一功能部301的组成材料的相关说明。
具体的，结合图3、图10至图12所示，所述功能层30包括：第一功能层，与所述正常子区2012相对设置；第二功能层，至少与所述显示区相对设置，且包括与所述正常子区2012相对设置的第二凹槽305，所述第二凹槽305中填充为所述第一功能层，所述第二功能层的弹性模量大于所述第一功能层的弹性模量；其中，所述第二功能部包括层叠设置的所述第一功能层与所述正常子区2012对应的部分、所述第二功能层。结合上文论述，第一功能部301和第四子功能层3022组成第二功能层，第三子功能层3021形成为第一功能层，进一步的，第二功能层中的第一功能部301和第四子功能层3022可以采用相同的材料制作以一体成型。
其中，结合图3、图10至图12所示，所述第二功能层中与所述形变子区2011相对设置的部分厚度，大于所述第一功能层的厚度。具体的，如图10至图12所示，第二凹槽305至少由第一功能层的相邻的两侧面形成，基于第二功能层的弹性模量大于所述第一功能层的弹性模量，本实施例中将弹性模量较大的第二功能层设置为与显示区相对应，可以进一步提升显示面板100的硬度。进一步的，所述第二功能层中与所述形变子区2011相对设置的部分厚度为20um至50um，所述第一功能层的厚度为10um至30um。
在一实施例中，结合图3、图7至图12所示，所述第一功能层包括的组成材料包括铜、铝中的至少一种，所述第二功能层的组成材料包括不锈钢、碳纤维中的至少一种。具体的，如图7至图9所示，结合上文论述可知，组成第一功能层的第二功能部302和第二子功能层3012这两者的组成材料包括铜、铝中的至少一种，形成为第二功能层的第一子功能层3011的组成材料包括不锈钢、碳纤维中的至少一种；如图10至图12所示，结合上文论述可知，组成第二功能层的第一功能部301和第四子功能层3022的组成材料包括不锈钢、碳纤维中的至少一种，形成为第一功能层的第三子功能层3021的组成材料包括铜、铝中的至少一种。
具体的，结合图7至图9示，所述第一子功能层3011的厚度、所述第二子功能层3012的厚度之和，等于所述第二功能部302的厚度。具体的，可以先在厚度处处相等的采用铜制作的铜膜层的一侧通过但不限于蚀刻的工艺进行图案化处理形成第一凹槽304、第二功能部302、第二子功能层3012，再于第一凹槽304内通过但不限于贴合的方式形成采用不锈钢制作的不锈钢膜层作为第一子功能层3011。其中，铜膜层的厚度可以为30纳米至50纳米，不锈钢膜层的厚度可以为15纳米至30纳米，即第二功能部302的厚度可以为30纳米至50纳米，第一子功能层3011的厚度可以为15纳米至30纳米。其中，感光器件40、固定层50可以靠近显示面板100的同一端而设置，进一步的，结合上文论述，如图9所示，铜膜层的一侧形成的第一凹槽304可以至少与显示面板100中的感光器件40、固定层50相对设置，同一第一功能部301可以同时形成于感光器件40、固定层50相对设置以。
具体的，结合图10至图12示，第三子功能层3021的厚度、第四子功能层3022的厚度之和，可以等于第一功能部301的厚度。具体的，可以先在厚度处处相等且采用不锈钢制作的不锈钢膜层的一侧通过但不限于蚀刻的工艺进行图案化处理形成第二凹槽305、第一功能部301、第四子功能层3022，再于第二凹槽305内通过但不限于贴合、溅镀的方式形成采用铜制作的铜膜层作为第三子功能层3021。其中，不锈钢膜层的厚度可以为20纳米至50纳米，第四子功能层3022的厚度可以为10纳米至30纳米，即图7中的第一功能部301的厚度可以为20纳米至50纳米。其中，感光器件40、固定层50可以靠近显示面板100的同一端而设置，进一步的，结合上文论述，如图12所示，不锈钢膜层的一侧形成的第二凹槽305可以至少与显示面板100中除去感光器件40、固定层50之外的部分相对设置，同一第一功能部301可以同时形成为与感光器件40、固定层50相对设置。
当然，如图2和图3所示，第一功能部301也可以采用同一材料制作，第二功能部302也可以采用同一材料制作，进一步的，可以采用热熔胶连接厚度相同的第一功能部301的侧部、第二功能部302的侧部，以形成厚度处处相等的功能层30。
具体的，如图13所示，功能层30还可以包括位于第一功能部301和第二功能部302上的粘贴层306、位于粘贴层306上的柔性层307、位于柔性层307上的泡棉层308和位于泡棉层308上的网格胶层309。其中，粘贴层306的组成材料可以包括但不限于压敏胶，柔性层307的组成材料可以包括但不限于聚酰亚胺，泡棉层308的组成材料可以为泡棉，网格胶层309可以以玻璃织网格布为基材，经涂布干胶乳液复合而成。可以理解的，第一功能部301和第二功能部302可以增强功能层30的硬度、功能以及屏蔽电磁场，柔性层307可以提高功能层30的机械性能，泡棉层具有缓冲作用，网格胶层可以遮光以及排除膜层之间的气体。进一步的，粘贴层306远离柔性层307的一侧还可以设有石墨层，以均匀化功能层30的热量以避免热量集中。
本申请提供了显示面板，所述显示面板包括：基板，包括显示区，所述显示区包括形变子区和正常子区；发光层，位于所述基板的一侧且与所述显示区相对设置；功能层，位于所述基板远离所述发光层的一侧，包括与所述形变子区相对设置的第一功能部、与所述正常子区相对设置的第二功能部，所述第一功能部的弹性模量大于所述第二功能部的弹性模量。其中，本申请中将第一功能部的弹性模量大于第二功能部的弹性模量，使得在同等应力下，第一功能部的应变小于第二功能部的应变以产生较小的形变，以改善功能层受到外力而发生形变的现象，从而改善显示面板的屏幕的外观品味。
以上对本申请实施例所提供的显示面板进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (20)

  1. 一种显示面板，其中，所述显示面板包括：
    基板，包括显示区，所述显示区包括形变子区和正常子区；
    发光层，位于所述基板的一侧且与所述显示区相对设置；
    功能层，位于所述基板远离所述发光层的一侧，包括与所述形变子区相对设置的第一功能部、与所述正常子区相对设置的第二功能部；
    其中，所述第一功能部的弹性模量大于所述第二功能部的弹性模量；
    其中，所述功能层包括：
    第一功能层，至少与所述显示区相对设置，且包括与所述形变子区相对设置的第一凹槽；
    第二功能层，填充于所述第一凹槽中，所述第二功能层的弹性模量大于所述第一功能层的弹性模量；
    其中，所述第一功能部包括层叠设置的所述第一功能层与所述形变子区对应的部分、所述第二功能层；
    其中，所述第一功能层包括的组成材料包括铜、铝中的至少一种，所述第二功能层的组成材料包括不锈钢、碳纤维中的至少一种。
  2. 如权利要求1所述的显示面板，其中，所述第一功能层中与所述正常子区相对设置的部分的厚度，大于或者等于所述第二功能层的厚度。
  3. 如权利要求2所述的显示面板，其中，所述第一功能层中与所述正常子区相对设置的部分的厚度为30um至50um，所述第二功能层的厚度为15um至30um。
  4. 如权利要求1所述的显示面板，其中，所述功能层包括：
    第一功能层，与所述正常子区相对设置；
    第二功能层，至少与所述显示区相对设置，且包括与所述正常子区相对设置的第二凹槽，所述第二凹槽中填充为所述第一功能层，所述第二功能层的弹性模量大于所述第一功能层的弹性模量；
    其中，所述第二功能部包括层叠设置的所述第一功能层与所述正常子区对应的部分、所述第二功能层。
  5. 如权利要求4所述的显示面板，其中，所述第二功能层中与所述形变子区相对设置的部分厚度，大于所述第一功能层的厚度。
  6. 如权利要求1所述的显示面板，其中，所述第一功能部设置有第一通孔。
  7. 如权利要求1所述的显示面板，其中，所述基板还包括非显示区，所述非显示区包括弯折子区和设置在所述弯折子区远离所述显示区的端子子区，所述端子子区通过所述弯折子区固定于所述功能层远离所述发光层的一侧，所述弯折子区重叠于所述形变子区。
  8. 一种显示面板，其中，所述显示面板包括：
    基板，包括显示区，所述显示区包括形变子区和正常子区；
    发光层，位于所述基板的一侧且与所述显示区相对设置；
    功能层，位于所述基板远离所述发光层的一侧，包括与所述形变子区相对设置的第一功能部、与所述正常子区相对设置的第二功能部；
    其中，所述第一功能部的弹性模量大于所述第二功能部的弹性模量；
    其中，所述功能层包括：
    第一功能层，与所述正常子区相对设置；
    第二功能层，至少与所述显示区相对设置，且包括与所述正常子区相对设置的第二凹槽，所述第二凹槽中填充为所述第一功能层，所述第二功能层的弹性模量大于所述第一功能层的弹性模量；
    其中，所述第二功能部包括层叠设置的所述第一功能层与所述正常子区对应的部分、所述第二功能层；
    其中，所述第一功能层包括的组成材料包括铜、铝中的至少一种，所述第二功能层的组成材料包括不锈钢、碳纤维中的至少一种。
  9. 一种显示面板，其中，所述显示面板包括：
    基板，包括显示区，所述显示区包括形变子区和正常子区；
    发光层，位于所述基板的一侧且与所述显示区相对设置；
    功能层，位于所述基板远离所述发光层的一侧，包括与所述形变子区相对设置的第一功能部、与所述正常子区相对设置的第二功能部；
    其中，所述第一功能部的弹性模量大于所述第二功能部的弹性模量。
  10. 如权利要求9所述的显示面板，其中，所述功能层包括：
    第一功能层，至少与所述显示区相对设置，且包括与所述形变子区相对设置的第一凹槽；
    第二功能层，填充于所述第一凹槽中，所述第二功能层的弹性模量大于所述第一功能层的弹性模量；
    其中，所述第一功能部包括层叠设置的所述第一功能层与所述形变子区对应的部分、所述第二功能层。
  11. 如权利要求10所述的显示面板，其中，所述第一功能层中与所述正常子区相对设置的部分的厚度，大于或者等于所述第二功能层的厚度。
  12. 如权利要求11所述的显示面板，其中，所述第一功能层中与所述正常子区相对设置的部分的厚度为30um至50um，所述第二功能层的厚度为15um至30um。
  13. 如权利要求9所述的显示面板，其中，所述功能层包括：
    第一功能层，与所述正常子区相对设置；
    第二功能层，至少与所述显示区相对设置，且包括与所述正常子区相对设置的第二凹槽，所述第二凹槽中填充为所述第一功能层，所述第二功能层的弹性模量大于所述第一功能层的弹性模量；
    其中，所述第二功能部包括层叠设置的所述第一功能层与所述正常子区对应的部分、所述第二功能层。
  14. 如权利要求13所述的显示面板，其中，所述第二功能层中与所述形变子区相对设置的部分厚度，大于所述第一功能层的厚度。
  15. 如权利要求14所述的显示面板，其中，所述第二功能层中与所述形变子区相对设置的部分厚度为20um至50um，所述第一功能层的厚度为10um至30um。
  16. 如权利要求9所述的显示面板，其中，所述第一功能层包括的组成材料包括铜、铝中的至少一种，所述第二功能层的组成材料包括不锈钢、碳纤维中的至少一种。
  17. 如权利要求9所述的显示面板，其中，所述第一功能部设置有第一通孔。
  18. 如权利要求9所述的显示面板，其中，所述基板还包括非显示区，所述非显示区包括弯折子区和设置在所述弯折子区远离所述显示区的端子子区，所述端子子区通过所述弯折子区固定于所述功能层远离所述发光层的一侧，所述弯折子区重叠于所述形变子区。
  19. 如权利要求9所述的显示面板，其中，所述第一功能部的弹性模量大于或者等于100GPa。
  20. 如权利要求9所述的显示面板，其中，所述第二功能部的导热系数大于200瓦/米·度。
PCT/CN2022/087927 2022-04-12 2022-04-20 显示面板 Ceased WO2023197348A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/755,866 US20240155915A1 (en) 2022-04-12 2022-04-20 Display panel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210378528.7 2022-04-12
CN202210378528.7A CN114864843A (zh) 2022-04-12 2022-04-12 显示面板

Publications (1)

Publication Number Publication Date
WO2023197348A1 true WO2023197348A1 (zh) 2023-10-19

Family

ID=82628738

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/087927 Ceased WO2023197348A1 (zh) 2022-04-12 2022-04-20 显示面板

Country Status (3)

Country Link
US (1) US20240155915A1 (zh)
CN (1) CN114864843A (zh)
WO (1) WO2023197348A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115731793A (zh) * 2022-11-14 2023-03-03 武汉华星光电半导体显示技术有限公司 显示模组及显示装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109345959A (zh) * 2018-10-12 2019-02-15 京东方科技集团股份有限公司 一种柔性衬底、柔性显示面板、柔性显示装置和制作方法
US20190115547A1 (en) * 2017-10-18 2019-04-18 Dongwoo Fine-Chem Co., Ltd. Flexible display device
CN209607739U (zh) * 2019-05-15 2019-11-08 昆山国显光电有限公司 显示模组及电子设备
CN110610979A (zh) * 2019-09-29 2019-12-24 武汉天马微电子有限公司 柔性显示面板及其制作方法、显示装置
CN112164712A (zh) * 2020-09-29 2021-01-01 京东方科技集团股份有限公司 显示面板、显示面板的制造方法及显示装置
CN112991945A (zh) * 2021-02-23 2021-06-18 京东方科技集团股份有限公司 一种可折叠显示装置及其制作方法
CN113744630A (zh) * 2020-05-28 2021-12-03 云谷（固安）科技有限公司 显示模组、显示模组的制造方法及显示装置
CN113986037A (zh) * 2021-10-19 2022-01-28 武汉华星光电半导体显示技术有限公司 显示面板和移动终端

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021203329A1 (zh) * 2020-04-08 2021-10-14 京东方科技集团股份有限公司 显示基板及其制备方法、显示装置
CN113629068B (zh) * 2021-07-16 2023-09-26 武汉华星光电半导体显示技术有限公司 一种显示面板及其制备方法
CN113658515A (zh) * 2021-08-24 2021-11-16 京东方科技集团股份有限公司 显示基板及其制作方法和显示面板

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190115547A1 (en) * 2017-10-18 2019-04-18 Dongwoo Fine-Chem Co., Ltd. Flexible display device
CN109345959A (zh) * 2018-10-12 2019-02-15 京东方科技集团股份有限公司 一种柔性衬底、柔性显示面板、柔性显示装置和制作方法
CN209607739U (zh) * 2019-05-15 2019-11-08 昆山国显光电有限公司 显示模组及电子设备
CN110610979A (zh) * 2019-09-29 2019-12-24 武汉天马微电子有限公司 柔性显示面板及其制作方法、显示装置
CN113744630A (zh) * 2020-05-28 2021-12-03 云谷（固安）科技有限公司 显示模组、显示模组的制造方法及显示装置
CN112164712A (zh) * 2020-09-29 2021-01-01 京东方科技集团股份有限公司 显示面板、显示面板的制造方法及显示装置
CN112991945A (zh) * 2021-02-23 2021-06-18 京东方科技集团股份有限公司 一种可折叠显示装置及其制作方法
CN113986037A (zh) * 2021-10-19 2022-01-28 武汉华星光电半导体显示技术有限公司 显示面板和移动终端

Also Published As

Publication number Publication date
US20240155915A1 (en) 2024-05-09
CN114864843A (zh) 2022-08-05

Similar Documents

Publication Publication Date Title
US11411189B2 (en) Flexible OLED module stacked structure and manufacturing method thereof
CN113707018B (zh) 显示模组及显示装置
TWI703353B (zh) 撓性濾色器及其製造方法
CN109461832B (zh) 一种柔性显示面板及其制作方法
CN207264694U (zh) 一种柔性显示面板、显示装置
US11656495B2 (en) Display module and method of manufacturing the same, display apparatus, and polarizer for display module
CN107946341A (zh) 显示装置和显示装置的制造方法
CN105118389A (zh) 支撑背板及曲面显示器
WO2023197357A1 (zh) 显示屏及其制备方法和显示装置
CN112017547A (zh) 显示模组堆叠结构及显示装置
CN112599538A (zh) 柔性显示屏、其制备方法、及柔性显示装置
KR102116035B1 (ko) 유기 발광 표시 장치 제조 방법
US20240217203A1 (en) Support Plate, Method for Manufacturing the Same and Foldable Display Device Comprising the Same
WO2023197348A1 (zh) 显示面板
CN111180600B (zh) 有机发光二极管器件结构及其制造方法
CN204965932U (zh) 支撑背板及曲面显示器
CN109683226A (zh) 一种柔性偏光片及显示装置
CN109802049B (zh) 显示面板及其制备方法、显示装置
CN111768715A (zh) 柔性显示模组与显示装置
CN215449877U (zh) 拼接式投影银幕
KR20200120784A (ko) 표시장치 및 표시장치 제조방법
CN113178531B (zh) 一种显示装置及其制备方法
CN117794735A (zh) 保护盖板及制作方法、显示装置
CN116229834A (zh) 显示模组及显示装置
TWI549560B (zh) 弧形顯示裝置及其製作方法

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 17755866

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22936992

Country of ref document: EP

Kind code of ref document: A1