WO2024007390A1 - 拼接显示面板 - Google Patents

拼接显示面板 Download PDF

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Publication number
WO2024007390A1
WO2024007390A1 PCT/CN2022/109105 CN2022109105W WO2024007390A1 WO 2024007390 A1 WO2024007390 A1 WO 2024007390A1 CN 2022109105 W CN2022109105 W CN 2022109105W WO 2024007390 A1 WO2024007390 A1 WO 2024007390A1
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WO
WIPO (PCT)
Prior art keywords
substrate
display module
display
spliced
recessed portion
Prior art date
Application number
PCT/CN2022/109105
Other languages
English (en)
French (fr)
Inventor
向昌明
Original Assignee
Tcl华星光电技术有限公司
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Filing date
Publication date
Application filed by Tcl华星光电技术有限公司 filed Critical Tcl华星光电技术有限公司
Publication of WO2024007390A1 publication Critical patent/WO2024007390A1/zh

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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
    • G09F9/302—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 characterised by the form or geometrical disposition of the individual elements
    • G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
    • 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
    • G09F9/33—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 being semiconductor devices, e.g. diodes
    • 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
    • G09F9/35—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 being liquid crystals

Definitions

  • the present application relates to the field of display technology, and in particular, to a spliced display panel.
  • Micro-LED micro light-emitting diode
  • sub-millimeter light-emitting diode Mini Light-Emitting Diode, Mini-LED
  • display technologies have the advantages of fast response, high color gamut, high PPI, and low energy consumption, It has developed into one of the hot spots in future display technology.
  • Embodiments of the present application provide a spliced display panel for improving the display stability of the spliced display panel.
  • An embodiment of the present application provides a splicing display panel, which includes:
  • the first display module includes a first display area and a first frame area arranged outside the first display area.
  • the first display module includes A first substrate and a second substrate are arranged oppositely, the second substrate has a first recessed portion, the first recessed portion is located in the first frame area, and the opening of the first recessed portion is located in the first The light-emitting side of the display module;
  • At least one third display module is disposed in the first recessed portion.
  • the second display module includes a second display area and a second frame area
  • the second display module includes a third substrate and a fourth substrate arranged oppositely
  • the fourth substrate has a second recessed portion, the second recessed portion is located in the second frame area, and the opening of the second recessed portion is located on the light exit side of the second display module, and the first recessed portion
  • a receiving groove is formed surrounding the second recessed portion, and the third display module is arranged in the receiving groove.
  • the first substrate and the third substrate are drive substrates
  • the second substrate and the fourth substrate are color filter substrates
  • the second substrate It includes a first substrate and a first color filter layer disposed on the side of the first substrate close to the first substrate, and the first substrate has the first recess
  • the fourth substrate includes a second substrate and A second color filter layer is provided on a side of the second substrate close to the third substrate, and the second substrate has the second recessed portion.
  • the first display module further includes a first liquid crystal layer, the first liquid crystal layer is disposed between the first substrate and the second substrate, and The first liquid crystal layer is located in the first display area;
  • the second display module further includes a second liquid crystal layer, the second liquid crystal layer is disposed between the third substrate and the fourth substrate, and The second liquid crystal layer is located in the second display area.
  • the first substrate includes a first driving substrate and a first display functional layer provided on the first driving substrate
  • the second substrate includes a first cover. board, the first recessed portion is located on the first cover plate
  • the third substrate includes a second drive substrate and a second display function layer disposed on the second drive substrate
  • the fourth substrate includes The second cover plate, the second recessed portion is located on the second cover plate.
  • the third display module includes a driving circuit layer and an LED chip arranged on the driving circuit layer, and the driving circuit layer is arranged in the receiving groove, so The LED chip is disposed on a side of the driving circuit layer away from the bottom of the receiving groove.
  • the third display module further includes a sealant, and the sealant covers the LED chip.
  • the pixel pitch of the third display module is equal to the pixel pitch of the first display module and the second display module.
  • the first display module and the second display module are spliced with a gap, and the spliced display panel further includes optical glue, and the optical glue is filled in the gap. Inside.
  • the width of the receiving groove is equal to the width of the third display module.
  • a side of the third display module away from the bottom of the first recess is flush with a side of the second substrate away from the first substrate.
  • An embodiment of the present application also provides a splicing display panel, which includes:
  • the first display module includes a first display area and a first frame area arranged outside the first display area.
  • the first display module includes A first substrate and a second substrate are arranged oppositely, the first color filter layer is located on the first substrate, the second substrate includes a first base, the second substrate has a first recess, and the third A recessed portion is located in the first frame area, and the opening of the first recessed portion is located on the light exit side of the first display module;
  • At least one third display module is disposed in the first recessed portion.
  • the second display module includes a second display area and a second frame area
  • the second display module includes a third substrate and a fourth substrate that are arranged oppositely.
  • the two color filter layers are disposed on the third substrate
  • the fourth substrate includes a second base
  • the fourth substrate has a second recessed portion
  • the second recessed portion is located in the second frame area
  • the The opening of the second recessed portion is located on the light exit side of the second display module, the first recessed portion and the second recessed portion are surrounded by a receiving groove
  • the third display module is arranged in the receiving groove.
  • the first display module further includes a first liquid crystal layer, the first liquid crystal layer is disposed between the first substrate and the second substrate, and The first liquid crystal layer is located in the first display area;
  • the second display module further includes a second liquid crystal layer, the second liquid crystal layer is disposed between the third substrate and the fourth substrate, and The second liquid crystal layer is located in the second display area.
  • the third display module includes a driving circuit layer and an LED chip arranged on the driving circuit layer, and the driving circuit layer is arranged in the receiving groove, so The LED chip is disposed on a side of the driving circuit layer away from the bottom of the receiving groove.
  • the third display module further includes a sealant, and the sealant covers the LED chip.
  • the pixel pitch of the third display module is equal to the pixel pitch of the first display module and the second display module.
  • the first display module and the second display module are spliced with a gap, and the spliced display panel further includes optical glue, and the optical glue is filled in the gap. Inside.
  • the side of the third display module away from the bottom of the first recessed portion is flush with the side of the second substrate away from the first substrate.
  • the width of the receiving groove is equal to the width of the third display module.
  • the spliced display panel provided by the embodiment of the present application includes at least two first display modules and second display modules arranged in a spliced manner and at least one third display module.
  • the first display module includes a first display area and a first frame area arranged outside the first display area.
  • the first display module includes a first substrate and a second substrate arranged oppositely.
  • the second substrate has a first recessed portion, the first recessed portion is located in the first frame area, and the opening of the first recessed portion is located on the light emitting side of the first display module.
  • At least one third display module is disposed in the first recessed portion.
  • the first display module includes a first substrate and a second substrate, the second substrate has a first recessed part, the first recessed part is located in the first frame area, and the third display module is disposed in the first recessed part, As a result, the first display module carries the third display module, so that there is no suspended area in the third display module, thereby improving the stability of the spliced display panel.
  • Figure 1 is a schematic structural diagram of a splicing display panel provided by a comparative embodiment of the present application
  • Figure 2 is a schematic structural diagram of the first splicing display panel provided by this application.
  • Figure 3 is a schematic diagram of the second structure of the splicing display panel provided by the embodiment of the present application.
  • Figure 4 is a third structural schematic diagram of a spliced display panel provided by an embodiment of the present application.
  • Figure 5 is a fourth structural schematic diagram of a spliced display panel provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a fifth splicing display panel provided by an embodiment of the present application.
  • first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features.
  • features defined as “first” and “second” may explicitly or implicitly include one or more of the described features.
  • “plurality” means two or more than two, unless otherwise explicitly and specifically limited.
  • An embodiment of the present application provides a splicing display panel. Each is explained in detail below. It should be noted that the order of description of the following embodiments does not limit the preferred order of the embodiments.
  • FIG. 1 is a schematic structural diagram of a splicing display panel provided by a comparative embodiment of the present application.
  • the current spliced display panel still has a black splicing seam in the middle, which affects the look and feel.
  • the designer added an LED light bar LB to the seam between the two spliced displays DS to achieve the effect of eliminating the seams.
  • this method is difficult to match the pixel size and spacing of the LED light bar LB with the pixels of the display PS due to the space limitations of the seams, frame glue width and bonding lead.
  • the LED light bar LB has a suspended portion DL (about 200 microns to 300 microns).
  • the spliced display panel is prone to misalignment after long-term use, which is prone to the problem of poor stability of the spliced display panel.
  • FIG. 2 is a first structural schematic diagram of a spliced display panel provided by an embodiment of the present application.
  • the spliced display panel 100 provided by the embodiment of the present application includes at least two first display modules 10 and second display modules 20 arranged in a spliced manner, and at least one third display module 30 .
  • the first display module 10 includes a first display area AA1 and a first frame area NA1 disposed outside the first display area AA1.
  • the first display module 10 includes a first substrate 101 and a second substrate 102 arranged oppositely.
  • the second substrate 102 has a first recessed portion 10a.
  • the first recessed portion 10a is located in the first frame area NA1, and the opening of the first recessed portion 10a is located on the light emitting side of the first display module 10.
  • At least one third display module 30 is disposed in the first recessed portion 10a.
  • the first display module 10 includes a first substrate 101 and a second substrate 102.
  • the second substrate 102 has a first recessed portion 10a.
  • the first recessed portion 10a is located in the first frame area NA1.
  • the third display module 30 is disposed in the first recess 10a, whereby the first display module 10 carries the third display module 30, so that there is no suspended area in the third display module 30, thereby improving the stability of the spliced display panel 100.
  • FIG. 3 is a schematic structural diagram of a second type of splicing display panel provided by this application.
  • the difference between the splicing display panel 100 provided in the embodiment of the present application and the splicing display panel 100 provided in FIG. 2 is that the second display module 20 includes a second display area AA2 and a second frame area NA2.
  • the second display module 20 includes a third substrate 201 and a fourth substrate 202 arranged oppositely.
  • the fourth substrate 202 has a second recessed portion 20a.
  • the second recessed portion 20a is located in the second frame area NA2, and the opening of the second recessed portion 20a is located on the light emitting side of the second display module 20.
  • the first recessed portion 10a and the second recessed portion 20a are located in the second frame area NA2.
  • the portion 20a is surrounded by a receiving groove Gr, and the third display module 30 is disposed in the receiving groove Gr.
  • the first recessed portion 10a and the second recessed portion 20a are surrounded by a receiving groove Gr, and the third display module 30 is disposed in the receiving groove Gr. Therefore, the first display module 10 and the second display module 20 carry the third display module 30, so that there is no suspended area in the third display module 30, thereby improving the uneven display of the spliced display panel 100 and improving the stability of the spliced display panel 100.
  • the step difference between the first display module 10 and the third display module 30 is reduced, thereby ensuring the flatness of the light-emitting surface of the spliced display panel 100 and improving the splicing seam PA. Shadow, thereby reducing or even eliminating the joint PA of the spliced display panel 100, thereby improving the display quality.
  • first display module 10 and the second display module 20 are spliced with a gap S.
  • the first frame area NA1 is spliced with the second frame area NA2 of an adjacent second display module 20 to form a splicing seam PA.
  • the gap S Located in Patchwork PA.
  • the first recessed portion 10a and the second recessed portion 20a connected with a slit S surround a receiving groove Gr, and the width W1 of the receiving groove Gr is equal to the width W2 of the third display module 30 .
  • the third display module 30 is stuck in the receiving groove Gr. Therefore, the third display module 30 will not shake, which improves the stability of the spliced display panel 100 .
  • the first display module 10 includes a first substrate 101 , a second substrate 102 and a first liquid crystal layer 103 that are oppositely arranged.
  • the first liquid crystal layer 103 is disposed between the first substrate 101 and the second substrate 102, and the first liquid crystal layer 103 is located in the first display area AA1.
  • the first recessed portion 10a is provided on the second substrate 102, and the opening of the first recessed portion 10a is located on the light emitting side of the first display module 10.
  • the first substrate 101 is a driving substrate.
  • the second substrate 102 is a color filter substrate.
  • the second substrate 102 includes a first substrate 1021 and a first color filter layer 1022 disposed on a side of the first substrate 1021 close to the first substrate 101.
  • the first color filter layer 1022 includes a first color filter layer 1022a and a first color filter layer 1022 disposed on the first side of the first substrate 1021.
  • the first recessed portion 10a is located on the first base 1021.
  • the second display module 20 includes a third substrate 201 , a fourth substrate 202 and a second liquid crystal layer 203 that are oppositely arranged.
  • the second liquid crystal layer 203 is disposed between the third substrate 201 and the fourth substrate 202, and the second liquid crystal layer 203 is located in the second display area AA2.
  • the second recessed portion 20a is located on the fourth substrate 202, and the opening of the second recessed portion 20a is located on the light emitting side of the second display module 20.
  • the third substrate 201 is a driving substrate.
  • the fourth substrate 202 is a color filter substrate.
  • the fourth substrate 202 includes a second substrate 2021 and a second color filter layer 2022 disposed on a side of the second substrate 2021 close to the third substrate 201.
  • the second color filter layer 2022 includes a second color filter layer 2022a and a second color filter layer 2022 disposed on a side of the second substrate 2021 close to the third substrate 201.
  • the second black matrix 2022b between the color filter layers 2022a.
  • the second recessed portion 20a is located on the second base 2021.
  • the light emitting side of the first display module 10 is the display surface of the first display module 10
  • the light emitting side of the second display module 20 is the display surface of the second display module 20 .
  • the third display module 30 includes a driving circuit layer 301 , an LED chip 302 disposed on the driving circuit layer 301 , and a sealant 303 .
  • the drive circuit layer 301 is provided in the accommodation groove Gr.
  • the LED chip 302 is disposed on a side of the driving circuit layer 301 away from the bottom of the receiving groove Gr.
  • the sealant 303 covers the LED chip 302 .
  • the driving circuit layer includes a printed circuit board (PCB)-based driving substrate, a glass-based driving substrate, etc.
  • PCB printed circuit board
  • the first display module 10 and the second display module 20 are liquid crystal display (LCD) modules. Since the first frame area NA1 of the first display module 10 and the second frame area NA1 of the second display module 20 The second frame area NA2 needs to be provided with structures such as metal wiring and a black matrix. Therefore, when the first display module 10 and the second display module 20 are spliced, there will be a large splicing seam PA, which affects the visual effect.
  • a first recessed portion 10a is provided on the first base 1021, and a second recessed portion 20a is provided on the second base 2021.
  • the first recessed portion 10a and the second recessed portion 20a are surrounded by a receiving groove Gr, so that the third display
  • the module 30 is disposed in the accommodation groove Gr and blocks the splicing seam PA so that there is no suspended area in the third display module 30 , thereby improving the uneven display of the splicing display panel 100 and improving the stability of the splicing display panel 100 .
  • the third display module 30 is disposed in the accommodation groove Gr, the step difference between the first display module 10, the second display module 20 and the third display module 30 is reduced, thereby ensuring the flatness of the light-emitting surface of the spliced display panel 100.
  • the shadows at the splicing PA are improved to reduce or even eliminate the splicing of the spliced display panel 100 and improve the display quality.
  • the LED chip 302 may be a MircoLED chip or a Mini LED chip.
  • the third display module 30 uses small-sized light-emitting diodes such as Micro-LED and Mini-LED to emit light for display. By improving the process and panel design, Micro-LEDs with smaller spacing can be produced. LED light-emitting structure, Mini LED light-emitting structure.
  • Micro After the distance between the light-emitting diodes of the LED light-emitting structure and the Mini LED light-emitting structure is reduced, on the one hand, it can achieve higher resolution display in a narrow seam and enhance the display effect; on the other hand, it can achieve a visually borderless effect. , and can be better integrated with the first display module 10 to make the display screen more continuous and complete.
  • the pixel pitch D1 of the third display module 30 is equal to the pixel pitch D2 of the first display module 10 and the second display module 20 .
  • the resolutions of the first display module 10 , the second display module 20 and the third display module 30 are kept consistent, further improving the display quality of the spliced display panel 100 .
  • the side of the third display module 30 away from the bottom of the first recess 10a is flush with the side of the second substrate 102 away from the first substrate 101 . Effectively improving the flatness of the light-emitting surface, users cannot easily see the side of the second display module 20 from a side view, which can improve the technical problem of dark shadows in the patchwork PA at a side view, and greatly improve the display quality.
  • the manufacturing steps of the first recessed portion 10a include: first, use a deep ultraviolet laser to scan the first substrate 1021 (the substrate 1021 is white glass without any manufacturing process), the scanning wavelength is 343nm, and the scanning power is controlled between 1-5w. , the scanning time depends on the process.
  • the laser scanning end of the substrate 1021 is immersed in a hydrofluoric acid container to remove the laser-damaged film layer to form the first recess 10a, and then the first substrate 1021 and the first substrate 101 are aligned and bonded.
  • the manufacturing step of the first recessed portion 10a may include: using CO 2 laser to scan the first substrate 1021 disposed on the first substrate 101, the scanning wavelength is 355 nm, and the scanning power is controlled between 3-20w, The scanning time is determined according to the process film, and the first recessed portion 10a is formed.
  • the first display module 10 also includes a first connection pad 105 , a first chip-on-chip film 106 and a first printed circuit board 107 .
  • the first connection pad 105 is provided on the first substrate 101 and corresponds to the first frame area NA1.
  • the first flip-chip film 106 is connected to the first connection pad 105 .
  • the first printed circuit board 107 is bound to the side of the first substrate 101 away from the second substrate 102 through the first chip-on-chip film 106 . Thus, a narrow frame design of the first display module 10 is achieved.
  • the second display module 20 further includes a second connection pad 205 , a second chip-on-chip film 206 and a second printed circuit board 207 .
  • the second connection pad 205 is provided on the third substrate 201 and corresponds to the second frame area NA2.
  • the second flip-chip film 206 is connected to the second connection pad 205 .
  • the second printed circuit board 207 is bound to the side of the third substrate 201 away from the fourth substrate 202 through the second chip-on-chip film 206 . Thus, a narrow frame design of the second display module 20 is achieved.
  • the first display module 10 and the second display module 20 have the same structure. For convenience of description, this application divides them into the first display module 10 and the second display module 20 .
  • FIG. 4 is a third structural schematic diagram of a spliced display panel provided by an embodiment of the present application.
  • the difference between the spliced display panel 100 provided in the embodiment of the present application and the spliced display panel 100 provided in FIG. 3 is that the spliced display panel 100 also includes optical glue 104 , and the optical glue 104 is filled in the gap S.
  • the gap S is filled with optical glue (Optically Clear Adhesive, OCA) 104.
  • Optical glue 104 has higher strength when making surface connections.
  • the optical glue 104 has a high light transmittance and can effectively eliminate the gap S.
  • the gap S is a small spacing gap generated in the middle when the first display module 10 and the second display module 20 are spliced. If the optical glue 104 is filled in the gap S, a more complete and continuous picture can be displayed. Therefore, the optical glue 104 can not only ensure the stability of the connection between the two adjacent first display modules 10 and the second display module 20 , but also make the product surface smoother, avoid the problem of uneven thickness, and thereby improve the splicing display panel. 100 display effect.
  • the material of the optical glue 104 is selected from one or any combination of silicone glue, acrylic glue, epoxy sealant, and polyurethane glue.
  • silicone glue acrylic glue, epoxy sealant, and polyurethane glue.
  • the embodiments of this application use organic silica gel, acrylic glue, epoxy sealant and polyurethane glue with high water and oxygen barrier capabilities.
  • the optical material has high water and oxygen barrier capabilities and excellent optical properties.
  • the optical glue 104 provided in the embodiment of the present application can directly fit two adjacent frame areas without introducing an adhesive layer.
  • FIG. 5 is a fourth structural schematic diagram of a spliced display panel provided by an embodiment of the present application.
  • the difference between the splicing display panel 100 provided by the embodiment of the present application and the splicing display panel 100 provided in Figure 3 is that the first color filter layer 1022 is located on the side of the first substrate 101 close to the first liquid crystal layer 103, and the second color filter layer 2022 is located on the side of the first substrate 101 close to the first liquid crystal layer 103.
  • the side of the third substrate 201 close to the second liquid crystal layer 203.
  • the second substrate 102 includes a first substrate 1021, the first substrate 1021 is a glass substrate, and the first recessed portion 10a is located on the glass substrate.
  • the fourth substrate 202 includes a second substrate 2021, the second substrate 2021 is a glass substrate, and the second recessed portion 20a is located on the glass substrate.
  • COA Color Filter On Array, color filter stacked array substrate
  • FIG. 6 is a fifth structural schematic diagram of a spliced display panel provided by an embodiment of the present application.
  • the difference between the spliced display panel 100 provided by the embodiment of the present application and the spliced display panel 100 provided in FIG. 3 is that the first substrate 101 includes a first driving substrate 1011 and a first display functional layer 1012 disposed on the first driving substrate 1011.
  • the second substrate 102 includes a first cover plate 1023, and the first recessed portion 10a is located on the first cover plate 1023.
  • the third substrate 201 includes a second driving substrate 2011 and a second display function layer 2012 provided on the second driving substrate 2011.
  • the fourth substrate 202 includes a second cover plate 2023, and the second recessed portion 20a is located on the second cover plate 2023. .
  • the first display functional layer 1012 and the second display functional layer 2012 are organic light-emitting diode (OLED) display functional layers.
  • the display functional layer includes an anode, a pixel definition layer, a light-emitting layer and a cathode.
  • the anode is connected to the driving substrate.
  • the pixel definition layer is disposed on the anode, the pixel definition layer includes an opening, and the opening exposes a portion of the anode.
  • the light-emitting layer is defined within the opening, and the cathode is disposed on the pixel-defining layer.
  • first frame area NA1 of the first display module 10 and the second frame area NA2 of the second display module 20 need to be provided with metal wiring, etc., therefore, when the first display module 10 and the second display module 20 When the module 20 is spliced, it has a larger splicing PA, which should have a visual effect.
  • a first recessed portion 10a is provided on the first cover plate 1013, and a second recessed portion 20a is provided on the second cover plate 2023.
  • the first recessed portion 10a and the second recessed portion 20a are surrounded by a receiving groove Gr.
  • the third display module 30 is disposed in the accommodation groove Gr and blocks the splicing seam PA so that there is no suspended area in the third display module 30 , thereby improving the uneven display of the splicing display panel 100 and improving the stability of the splicing display panel 100 sex.
  • the third display module 30 is disposed in the accommodation groove Gr, the step difference between the first display module 10, the second display module 20 and the third display module 30 is reduced, thereby ensuring the flatness of the light-emitting surface of the spliced display panel 100.
  • the shadows at the splicing PA are improved to reduce or even eliminate the splicing of the spliced display panel 100 and improve the display quality.
  • the spliced display panel provided by the embodiment of the present application includes at least two first display modules and second display modules arranged in a spliced manner and at least one third display module.
  • the first display module includes a first display area and a first frame area arranged outside the first display area.
  • the first display module includes a first substrate and a second substrate arranged oppositely.
  • the second substrate has a first recessed portion, the first recessed portion is located in the first frame area, and the opening of the first recessed portion is located on the light emitting side of the first display module.
  • At least one third display module is disposed in the first recessed portion.
  • the first display module includes a first substrate and a second substrate, the second substrate has a first recessed part, the first recessed part is located in the first frame area, and the third display module is disposed in the first recessed part, As a result, the first display module carries the third display module, so that there is no suspended area in the third display module, thereby improving the stability of the spliced display panel.

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Abstract

一种拼接显示面板（100），包括至少两个拼接设置的第一显示模块（10）和第二显示模块（20）、以及至少一个第三显示模块（30）。第一显示模块（10）包括第一显示区（AA1）和设置在第一显示区（AA1）外的第一边框区（NA1）。第一显示模块（10）包括相对设置的第一基板（101）和第二基板（102）。第二基板（102）具有第一凹陷部（10a），第一凹陷部（10a）位于第一边框区(NA1)。至少一个第三显示模块（30）设置在第一凹陷部（10a）内。

Description

拼接显示面板 技术领域
本申请涉及显示技术领域，尤其涉及一种拼接显示面板。
 背景技术
随着微型发光二极管（Micro Light-Emitting Diode, Micro-LED）和次毫米发光二极管（Mini Light-Emitting Diode, Mini-LED）显示技术具有反应快、高色域、高PPI、低能耗等优势，其发展成未来显示技术的热点之一。
随着户外显示市场的快速发展，大尺寸、高解析度成为户外显示的发展方向。传统的拼接屏无法消除拼缝，影响视觉效果。
虽然可以通过在拼缝处设置灯条来改善拼缝的问题，但现有的灯条的设置方式会存在拼接显示面板稳定性差的问题。
 技术问题
本申请实施例提供一种拼接显示面板，用于提高拼接显示面板显示的稳定性。
 技术解决方案
本申请实施例提供一种拼接显示面板，其包括：
至少两个拼接设置的第一显示模块和第二显示模块，所述第一显示模块包括第一显示区和设置在所述第一显示区外的第一边框区，所述第一显示模块包括相对设置的第一基板和第二基板，所述第二基板具有第一凹陷部，所述第一凹陷部位于所述第一边框区，且所述第一凹陷部的开口位于所述第一显示模块出光侧；
至少一个第三显示模块，设置在所述第一凹陷部内。
可选的，在本申请提供的一些实施例中，所述第二显示模块包括第二显示区和第二边框区，所述第二显示模块包括相对设置的第三基板和第四基板，所述第四基板具有第二凹陷部，所述第二凹陷部位于所述第二边框区，且所述第二凹陷部的开口位于所述第二显示模块的出光侧，所述第一凹陷部和所述第二凹陷部围设形成容纳槽，所述第三显示模块设置在所述容纳槽内。
可选的，在本申请提供的一些实施例中，所述第一基板和所述第三基板为驱动基板，所述第二基板和所述第四基板为彩膜基板，所述第二基板包括第一基底和设置在所述第一基底靠近所述第一基板一侧的第一彩膜层，所述第一基底具有所述第一凹陷部；所述第四基板包括第二基底和设置在所述第二基底靠近所述第三基板一侧的第二彩膜层，所述第二基底具有所述第二凹陷部。
可选的，在本申请提供的一些实施例中，所述第一显示模块还包括第一液晶层，所述第一液晶层设置在所述第一基板和所述第二基板之间，且所述第一液晶层位于所述第一显示区；所述第二显示模块还包括第二液晶层，所述第二液晶层设置在所述第三基板和所述第四基板之间，且所述第二液晶层位于所述第二显示区。
可选的，在本申请提供的一些实施例中，所述第一基板包括第一驱动基板和设置在所述第一驱动基板上的第一显示功能层，所述第二基板包括第一盖板，所述第一凹陷部位于所述第一盖板上；所述第三基板包括第二驱动基板和设置在所述第二驱动基板上的第二显示功能层，所述第四基板包括第二盖板，所述第二凹陷部位于所述第二盖板上。
可选的，在本申请提供的一些实施例中，所述第三显示模块包括驱动电路层和设置在所述驱动电路层上LED芯片，所述驱动电路层设置在所述容纳槽内，所述LED芯片设置在所述驱动电路层远离所述容纳槽的底部的一面上。
可选的，在本申请提供的一些实施例中，所述第三显示模块还包括封胶，所述封胶覆盖所述LED芯片。
可选的，在本申请提供的一些实施例中，所述第三显示模块的像素间距等于所述第一显示模块和所述第二显示模块的像素间距。
可选的，在本申请提供的一些实施例中，所述第一显示模块和所述第二显示模块拼接具有缝隙，所述拼接显示面板还包括光学胶，所述光学胶填充在所述缝隙内。
可选的，在本申请提供的一些实施例中，所述容纳槽的宽度等于所述第三显示模块的宽度。
可选的，在本申请提供的一些实施例中，所述第三显示模块远离所述第一凹陷部的底部的一侧和所述第二基板远离所述第一基板的一侧齐平。
本申请实施例还提供一种拼接显示面板，其包括：
至少两个拼接设置的第一显示模块和第二显示模块，所述第一显示模块包括第一显示区和设置在所述第一显示区外的第一边框区，所述第一显示模块包括相对设置的第一基板和第二基板，第一彩膜层位于设置在所述第一基板上，所述第二基板包括第一基底，所述第二基板具有第一凹陷部，所述第一凹陷部位于所述第一边框区，且所述第一凹陷部的开口位于所述第一显示模块出光侧；
至少一个第三显示模块，设置在所述第一凹陷部内。
可选的，在本申请提供的一些实施例中，所述第二显示模块包括第二显示区和第二边框区，所述第二显示模块包括相对设置的第三基板和第四基板，第二彩膜层设置在所述第三基板上，所述第四基板包括第二基底，所述第四基板具有第二凹陷部，所述第二凹陷部位于所述第二边框区，且所述第二凹陷部的开口位于所述第二显示模块的出光侧，所述第一凹陷部和所述第二凹陷部围设形成容纳槽，所述第三显示模块设置在所述容纳槽内。
可选的，在本申请提供的一些实施例中，所述第一显示模块还包括第一液晶层，所述第一液晶层设置在所述第一基板和所述第二基板之间，且所述第一液晶层位于所述第一显示区；所述第二显示模块还包括第二液晶层，所述第二液晶层设置在所述第三基板和所述第四基板之间，且所述第二液晶层位于所述第二显示区。
可选的，在本申请提供的一些实施例中，所述第三显示模块包括驱动电路层和设置在所述驱动电路层上LED芯片，所述驱动电路层设置在所述容纳槽内，所述LED芯片设置在所述驱动电路层远离所述容纳槽的底部的一面上。
可选的，在本申请提供的一些实施例中，所述第三显示模块还包括封胶，所述封胶覆盖所述LED芯片。
可选的，在本申请提供的一些实施例中，所述第三显示模块的像素间距等于所述第一显示模块和所述第二显示模块的像素间距。
可选的，在本申请提供的一些实施例中，所述第一显示模块和所述第二显示模块拼接具有缝隙，所述拼接显示面板还包括光学胶，所述光学胶填充在所述缝隙内。
可选的，在本申请提供的一些实施例中，所述第三显示模块远离所述第一凹陷部的底部的一侧和所述第二基板远离所述第一基板的一侧齐平。
可选的，在本申请提供的一些实施例中，所述容纳槽的宽度等于所述第三显示模块的宽度。
 有益效果
本申请实施例提供的拼接显示面板包括至少两个拼接设置的第一显示模块和第二显示模块和至少一个第三显示模块。第一显示模块包括第一显示区和设置在第一显示区外的第一边框区。第一显示模块包括相对设置的第一基板和第二基板。第二基板具有第一凹陷部，第一凹陷部位于第一边框区且第一凹陷部的开口位于第一显示模块的出光侧。至少一个第三显示模块设置在第一凹陷部内。在本申请实施例中，第一显示模块包括第一基板和第二基板，第二基板具有第一凹陷部，第一凹陷部位于第一边框区，第三显示模块设置在第一凹陷部内，由此，第一显示模块承载第三显示模块，使得第三显示模块不会存在悬空区域，从而提高了拼接显示面板的稳定性。
 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。
图1为本申请对比实施例提供的拼接显示面板的一种结构示意图；
图2为本申请提供的拼接显示面板的第一种结构示意图；
图3为本申请实施例提供的拼接显示面板的第二种结构示意图；
图4为本申请实施例提供的拼接显示面板的第三种结构示意图；
图5为本申请实施例提供的拼接显示面板的第四种结构示意图；
图6为本申请实施例提供的拼接显示面板的第五种结构示意图。
 本发明的实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述，请参照附图中的图式，其中相同的组件符号代表相同的组件，以下的说明是基于所示的本申请具体实施例，其不应被视为限制本申请未在此详述的其他具体实施例。本说明书所使用的词语“实施例”意指实例、示例或例证。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
本申请实施例提供一种拼接显示面板。以下分别进行详细说明。需说明的是，以下实施例的描述顺序不作为对实施例优选顺序的限定。
下面通过具体实施例对本申请提供的拼接显示面板进行详细的阐述。
请参考图1，图1为本申请对比实施例提供的拼接显示面板的一种结构示意图。目前的拼接显示面板中间仍会有黑色拼接缝，影响观感。为了消除拼缝，设计者在拼接的两个显示屏DS之间的拼缝中加入LED灯条LB，达到消除拼缝的效果。然而该方法因拼缝、框胶宽度及焊接引线（Bonding Lead）空间限制，LED灯条LB的像素大小与间距很难做到与显示屏PS像素匹配。且LED灯条LB具有悬空部DL（约200微米至300微米），该拼接显示面板长期使用容易错位，从而容易出现拼接显示面板稳定性差的问题。
请参考图2，图2为本申请实施例提供的拼接显示面板的第一种结构示意图。本申请实施例提供的拼接显示面板100包括至少两个拼接设置的第一显示模块10和第二显示模块20、以及至少一个第三显示模块30。第一显示模块10包括第一显示区AA1和设置在第一显示区AA1外的第一边框区NA1。第一显示模块10包括相对设置的第一基板101和第二基板102。第二基板102具有第一凹陷部10a，第一凹陷部10a位于第一边框区NA1，且第一凹陷部10a的开口位于第一显示模块10的出光侧。至少一个第三显示模块30设置在第一凹陷部10a内。
在本申请实施例中，第一显示模块10包括第一基板101和第二基板102，第二基板102具有第一凹陷部10a，第一凹陷部10a位于第一边框区NA1，第三显示模块30设置在第一凹陷部10a内，由此，第一显示模块10承载第三显示模块30，使得第三显示模块30不会存在悬空区域，从而提高了拼接显示面板100的稳定性。
请参考图3，图3为本申请提供的拼接显示面板的第二种结构示意图。本申请实施例提供的拼接显示面板100和图2提供的拼接显示面板100的区别在于，第二显示模块20包括第二显示区AA2和第二边框区NA2。第二显示模块20包括相对设置的第三基板201和第四基板202。第四基板202具有第二凹陷部20a，第二凹陷部20a位于第二边框区NA2，且第二凹陷部20a的开口位于第二显示模块20的出光侧，第一凹陷部10a和第二凹陷部20a围设形成容纳槽Gr，第三显示模块30设置在容纳槽Gr内。在本申请实施例提供的拼接显示面板100中，第一凹陷部10a和第二凹陷部20a围设形成容纳槽Gr，第三显示模块30设置在容纳槽Gr内，由此，第一显示模块10和第二显示模块20承载第三显示模块30，使得第三显示模块30不会存在悬空区域，从而改善拼接显示面板100显示不均的现象，提高了拼接显示面板100的稳定性。另外，由于第三显示模块30设置在容纳槽Gr内，减小了第一显示模块10和第三显示模块30的段差，从而保证拼接显示面板100出光面的平整度，改善拼缝PA处的暗影，以此减小甚至消除拼接显示面板100的拼缝PA，提升显示品味。
需要说明的是，第一显示模块10和第二显示模块20拼接具有缝隙S，第一边框区NA1与相邻的一第二显示模块20的第二边框区NA2拼接形成拼缝PA，缝隙S位于拼缝PA中。
其中，与一缝隙S连通的第一凹陷部10a和第二凹陷部20a围设形成容纳槽Gr，容纳槽Gr的宽度W1等于第三显示模块30的宽度W2。使得第三显示模块30卡设于容纳槽Gr内，因此，第三显示模块30不会发生晃动，提高拼接显示面板100的稳定性。
其中，第一显示模块10包括相对设置的第一基板101、第二基板102和第一液晶层103。第一液晶层103设置在第一基板101和第二基板102之间，且第一液晶层103位于第一显示区AA1。第一凹陷部10a设置在第二基板102上，且第一凹陷部10a的开口位于第一显示模块10的出光侧。
具体的，第一基板101为驱动基板。第二基板102为彩膜基板。第二基板102包括第一基底1021和设置在第一基底1021靠近第一基板101一侧的第一彩膜层1022，第一彩膜层1022包括第一彩色滤光层1022a和设置在第一彩色滤光层1022a之间的第一黑矩阵1022b。第一凹陷部10a位于第一基底1021上。
第二显示模块20包括相对设置的第三基板201、第四基板202和第二液晶层203。第二液晶层203设置在第三基板201和第四基板202之间，且第二液晶层203位于第二显示区AA2。第二凹陷部20a位于第四基板202上，且第二凹陷部20a的开口位于第二显示模块20的出光侧。
具体的，第三基板201为驱动基板。第四基板202为彩膜基板。第四基板202包括第二基底2021和设置在第二基底2021靠近第三基板201一侧的第二彩膜层2022，第二彩膜层2022包括第二彩色滤光层2022a和设置在第二彩色滤光层2022a之间的第二黑矩阵2022b。第二凹陷部20a位于第二基底2021上。
应该理解的是，第一显示模块10的出光侧为第一显示模块10的显示面，第二显示模块20的出光侧为第二显示模块20的显示面。
第三显示模块30包括驱动电路层301、设置在驱动电路层301上LED芯片302和封胶303。驱动电路层301设置在容纳槽Gr内。LED芯片302设置在驱动电路层301远离容纳槽Gr的底部的一面上。封胶303覆盖LED芯片302。
在一些实施例中，驱动电路层包括印刷电路板（Printed Circuit Board，PCB）基驱动基板，玻璃基驱动基板等。
在本申请实施例中，第一显示模块10和第二显示模块20为液晶显示（Liquid Crystal Display, LCD）模块，由于第一显示模块10的第一边框区NA1和第二显示模块20的第二边框区NA2需要设置金属走线以及黑矩阵等结构，因此，当第一显示模块10和第二显示模块20拼接时，具有较大的拼缝PA，影响视觉效果。本申请通过在第一基底1021上设置第一凹陷部10a，第二基底2021上设置第二凹陷部20a，第一凹陷部10a和第二凹陷部20a围设形成容纳槽Gr，将第三显示模块30设置在容纳槽Gr内，并遮挡拼缝PA，使得第三显示模块30不会存在悬空区域，从而改善拼接显示面板100显示不均的现象，提高了拼接显示面板100的稳定性。另外，由于第三显示模块30设置在容纳槽Gr内，减小了第一显示模块10、第二显示模块20和第三显示模块30的段差，从而保证拼接显示面板100出光面的平整度，改善拼缝PA处的暗影，以此减小甚至消除拼接显示面板100的拼缝，提升显示品味。
在一些实施例中，LED芯片302可以是MircoLED芯片或Mini LED芯片。第三显示模块30采用Micro-LED、Mini-LED这类小尺寸发光二极管发光进行显示，通过改进工艺和面板设计，能够制作更小间距的Micro LED发光结构、Mini LED发光结构。当Micro LED发光结构、Mini LED发光结构的发光二极管间距减小后，一方面能够在狭窄的拼缝内实现更高分辨率的显示，增强显示效果；另一方面，能够在视觉上达到无边界的效果，更好与第一显示模块10进行融合，使得显示画面更连续和完整。
在一些实施例中，第三显示模块30的像素间距D1等于第一显示模块10和第二显示模块20的像素间距D2。使得第一显示模块10、第二显示模块20和第三显示模块30的分辨率保持一致，进一步提升了拼接显示面板100的显示品质。
在一些实施例中，第三显示模块30远离第一凹陷部10a的底部的一侧和第二基板102远离第一基板101的一侧齐平。有效改善出光面的平整度，用户从侧视角不容易看到第二显示模块20的侧面，可以改善拼缝PA处侧视角下具有暗影的技术问题，大大提升显示品味。
其中，第一凹陷部10a的制作步骤包括：首先，采用深紫外激光扫描第一基底1021，（基底1021为白玻璃，无任何制程），扫描波长为343nm，扫描功率在控制1-5w之间，扫面时间根据工艺而定。将基底1021激光扫描端浸入到氢氟酸容器中，去除被激光破坏膜层，形成第一凹陷部10a，然后将第一基底1021与第一基板101对位贴合。
在另一实施例中，第一凹陷部10a的制作步骤可以包括：采用CO 2激光扫描设置于第一基板101上的第一基底1021，扫描波长355nm，扫描功率在控制3-20w之间，扫面时间根据工艺膜后而定，形成第一凹陷部10a。
请继续参考图3，第一显示模块10还包括第一连接焊盘105、第一覆晶薄膜106和第一印刷电路板107。其中，第一连接焊盘105设置在第一基板101上，且对应于第一边框区NA1。第一覆晶薄膜106与第一连接焊盘105连接。第一印刷电路板107通过第一覆晶薄膜106绑定于第一基板101远离第二基板102的一侧。从而实现第一显示模块10的窄边框设计。
第二显示模块20还包括第二连接焊盘205、第二覆晶薄膜206和第二印刷电路板207。其中，第二连接焊盘205设置在第三基板201上，且对应于第二边框区NA2。第二覆晶薄膜206与第二连接焊盘205连接。第二印刷电路板207通过第二覆晶薄膜206绑定于第三基板201远离第四基板202的一侧。从而实现第二显示模块20的窄边框设计。
需要说明的是，在本申请实施例中，第一显示模块10和第二显示模块20具有相同的结构，本申请为了方便描述，所以将其区分为第一显示模块10和第二显示模块20。
请参考图4，图4为本申请实施例提供的拼接显示面板的第三种结构示意图。本申请实施例提供的拼接显示面板100和图3提供的拼接显示面板100的区别在于，拼接显示面板100还包括光学胶104，光学胶104填充在缝隙S内。
缝隙S填充有光学胶（Optically Clear Adhesive, OCA）104。采用光学胶104在进行面连接时，具有更高的强度。并且，光学胶104的光透过率大，能够有效消除缝隙S。
需要说明的是，缝隙S是第一显示模块10和第二显示模块20拼接时，中间产生的小间距缝隙。若在缝隙S中填充光学胶104，能够显示出更完整连续的画面。因此，光学胶104不但能够保证相邻两个第一显示模块10和第二显示模块20的连接的稳固性，还能够使产品表面更平整，避免出现厚度不均的问题，进而提高拼接显示面板100的显示效果。
在一些实施例中，光学胶104的材料选自有机硅胶、丙烯酸胶水、环氧密封胶和聚氨酯胶中的一种或其任意组合。在本申请中，由于聚合物材料具有高粘度，致密度高和光的透过率高，因此，本申请实施例选用有机硅胶、丙烯酸胶水、环氧密封胶和聚氨酯胶等具有高水氧阻隔能力的光学材料，在具有高水氧阻隔能力的同时兼具极佳的光学性能。本申请实施例提供的光学胶104可以直接贴合相邻的两个边框区，无需引入粘合层。
请参考图5，图5为本申请实施例提供的拼接显示面板的第四种结构示意图。本申请实施例提供的拼接显示面板100和图3提供的拼接显示面板100的区别在于，第一彩膜层1022位于第一基板101靠近第一液晶层103的一面，第二彩膜层2022位于第三基板201靠近第二液晶层203的一面。第二基板102包括第一基底1021，第一基底1021为玻璃基底，第一凹陷部10a位于玻璃基板上。第四基板202包括第二基底2021，第二基底2021为玻璃基底，第二凹陷部20a位于玻璃基板上。
在本申请实施例中，采用COA(Color Filter On Array，彩色滤光片叠加阵列基板)技术，提高了拼接显示面板100的像素开口率。
请参考图6，图6为本申请实施例提供的拼接显示面板的第五种结构示意图。本申请实施例提供的拼接显示面板100和图3提供的拼接显示面板100的区别在于，第一基板101包括第一驱动基板1011、设置在第一驱动基板1011上的第一显示功能层1012，第二基板102包括第一盖板1023，第一凹陷部10a位于第一盖板1023上。第三基板201包括第二驱动基板2011、设置在第二驱动基板2011上的第二显示功能层2012，第四基板202包括第二盖板2023，第二凹陷部20a位于第二盖板2023上。
需要说明的是，在本申请实施例中，第一显示功能层1012和第二显示功能层2012为有机发光二极管（Organic Light-Emitting Diode,OLED）显示功能层。
其中，显示功能层包括阳极，像素定义层、发光层和阴极。其中，阳极与驱动基板连接。像素定义层设置在阳极上，像素定义层包括开口，开口暴露阳极的一部分。发光层限定在开口内，阴极设置在像素定义层上。
在本申请实施例中，由于第一显示模块10的第一边框区NA1和第二显示模块20的第二边框区NA2需要设置金属走线等，因此，当第一显示模块10和第二显示模块20拼接时，具有较大的拼缝PA，应该视觉效果。本申请通过在第一盖板1013上设置第一凹陷部10a，在第二盖板2023上设置第二凹陷部20a，第一凹陷部10a和第二凹陷部20a围设形成容纳槽Gr，将第三显示模块30设置在容纳槽Gr内，并遮挡拼缝PA，使得第三显示模块30不会存在悬空区域，从而改善拼接显示面板100显示不均的现象，提高了拼接显示面板100的稳定性。另外，由于第三显示模块30设置在容纳槽Gr内，减小了第一显示模块10、第二显示模块20和第三显示模块30的段差，从而保证拼接显示面板100出光面的平整度，改善拼缝PA处的暗影，以此减小甚至消除拼接显示面板100的拼缝，提升显示品味。
本申请实施例提供的拼接显示面板包括至少两个拼接设置的第一显示模块和第二显示模块和至少一个第三显示模块。第一显示模块包括第一显示区和设置在第一显示区外的第一边框区。第一显示模块包括相对设置的第一基板和第二基板。第二基板具有第一凹陷部，第一凹陷部位于第一边框区且第一凹陷部的开口位于第一显示模块的出光侧。至少一个第三显示模块设置在第一凹陷部内。
在本申请实施例中，第一显示模块包括第一基板和第二基板，第二基板具有第一凹陷部，第一凹陷部位于第一边框区，第三显示模块设置在第一凹陷部内，由此，第一显示模块承载第三显示模块，使得第三显示模块不会存在悬空区域，从而提高了拼接显示面板的稳定性。
综上所述，虽然本申请已以优选实施例揭露如上，但上述优选实施例并非用以限制本申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种拼接显示面板，其包括：
    至少两个拼接设置的第一显示模块和第二显示模块，所述第一显示模块包括第一显示区和设置在所述第一显示区外的第一边框区，所述第一显示模块包括相对设置的第一基板和第二基板，所述第二基板具有第一凹陷部，所述第一凹陷部位于所述第一边框区，且所述第一凹陷部的开口位于所述第一显示模块出光侧；
    至少一个第三显示模块，设置在所述第一凹陷部内。
  2. 根据权利要求1所述的拼接显示面板，其中，所述第二显示模块包括第二显示区和第二边框区，所述第二显示模块包括相对设置的第三基板和第四基板，所述第四基板具有第二凹陷部，所述第二凹陷部位于所述第二边框区，且所述第二凹陷部的开口位于所述第二显示模块的出光侧，所述第一凹陷部和所述第二凹陷部围设形成容纳槽，所述第三显示模块设置在所述容纳槽内。
  3. 根据权利要求2所述的拼接显示面板，其中，所述第一基板和所述第三基板为驱动基板，所述第二基板和所述第四基板为彩膜基板，所述第二基板包括第一基底和设置在所述第一基底靠近所述第一基板一侧的第一彩膜层，所述第一基底具有所述第一凹陷部；所述第四基板包括第二基底和设置在所述第二基底靠近所述第三基板一侧的第二彩膜层，所述第二基底具有所述第二凹陷部。
  4. 根据权利要求3所述的拼接显示面板，其中，所述第一显示模块还包括第一液晶层，所述第一液晶层设置在所述第一基板和所述第二基板之间，且所述第一液晶层位于所述第一显示区；所述第二显示模块还包括第二液晶层，所述第二液晶层设置在所述第三基板和所述第四基板之间，且所述第二液晶层位于所述第二显示区。
  5. 根据权利要求2所述的拼接显示面板，其中，所述第一基板包括第一驱动基板和设置在所述第一驱动基板上的第一显示功能层，所述第二基板包括第一盖板，所述第一凹陷部位于所述第一盖板上；所述第三基板包括第二驱动基板和设置在所述第二驱动基板上的第二显示功能层，所述第四基板包括第二盖板，所述第二凹陷部位于所述第二盖板上。
  6. 根据权利要求2所述的拼接显示面板，其中，所述第三显示模块包括驱动电路层和设置在所述驱动电路层上LED芯片，所述驱动电路层设置在所述容纳槽内，所述LED芯片设置在所述驱动电路层远离所述容纳槽的底部的一面上。
  7. 根据权利要求6所述的拼接显示面板，其中，所述第三显示模块还包括封胶，所述封胶覆盖所述LED芯片。
  8. 根据权利要求2所述的拼接显示面板，其中，所述第三显示模块的像素间距等于所述第一显示模块和所述第二显示模块的像素间距。
  9. 根据权利要求2所述的拼接显示面板，其中，所述第一显示模块和所述第二显示模块拼接具有缝隙，所述拼接显示面板还包括光学胶，所述光学胶填充在所述缝隙内。
  10. 根据权利要求2所述的拼接显示面板，其中，所述容纳槽的宽度等于所述第三显示模块的宽度。
  11. 根据权利要求1所述的拼接显示面板，其中，所述第三显示模块远离所述第一凹陷部的底部的一侧和所述第二基板远离所述第一基板的一侧齐平。
  12. 一种拼接显示面板，其包括：
    至少两个拼接设置的第一显示模块和第二显示模块，所述第一显示模块包括第一显示区和设置在所述第一显示区外的第一边框区，所述第一显示模块包括相对设置的第一基板和第二基板，第一彩膜层位于设置在所述第一基板上，所述第二基板包括第一基底，所述第二基板具有第一凹陷部，所述第一凹陷部位于所述第一边框区，且所述第一凹陷部的开口位于所述第一显示模块出光侧；
    至少一个第三显示模块，设置在所述第一凹陷部内。
  13. 根据权利要求12所述的拼接显示面板，其中，所述第二显示模块包括第二显示区和第二边框区，所述第二显示模块包括相对设置的第三基板和第四基板，第二彩膜层设置在所述第三基板上，所述第四基板包括第二基底，所述第四基板具有第二凹陷部，所述第二凹陷部位于所述第二边框区，且所述第二凹陷部的开口位于所述第二显示模块的出光侧，所述第一凹陷部和所述第二凹陷部围设形成容纳槽，所述第三显示模块设置在所述容纳槽内。
  14. 根据权利要求13所述的拼接显示面板，其中，所述第一显示模块还包括第一液晶层，所述第一液晶层设置在所述第一基板和所述第二基板之间，且所述第一液晶层位于所述第一显示区；所述第二显示模块还包括第二液晶层，所述第二液晶层设置在所述第三基板和所述第四基板之间，且所述第二液晶层位于所述第二显示区。
  15. 根据权利要求13所述的拼接显示面板，其中，所述第三显示模块包括驱动电路层和设置在所述驱动电路层上LED芯片，所述驱动电路层设置在所述容纳槽内，所述LED芯片设置在所述驱动电路层远离所述容纳槽的底部的一面上。
  16. 根据权利要求15所述的拼接显示面板，其中，所述第三显示模块还包括封胶，所述封胶覆盖所述LED芯片。
  17. 根据权利要求12所述的拼接显示面板，其中，所述第三显示模块的像素间距等于所述第一显示模块和所述第二显示模块的像素间距。
  18. 根据权利要求12所述的拼接显示面板，其中，所述第一显示模块和所述第二显示模块拼接具有缝隙，所述拼接显示面板还包括光学胶，所述光学胶填充在所述缝隙内。
  19. 根据权利要求12所述的拼接显示面板，其中，所述第三显示模块远离所述第一凹陷部的底部的一侧和所述第二基板远离所述第一基板的一侧齐平。
  20. 根据权利要求13所述的拼接显示面板，其中，所述容纳槽的宽度等于所述第三显示模块的宽度。
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