WO2025189591A1 - 显示面板及移动终端 - Google Patents

显示面板及移动终端

Info

Publication number
WO2025189591A1
WO2025189591A1 PCT/CN2024/099331 CN2024099331W WO2025189591A1 WO 2025189591 A1 WO2025189591 A1 WO 2025189591A1 CN 2024099331 W CN2024099331 W CN 2024099331W WO 2025189591 A1 WO2025189591 A1 WO 2025189591A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
display panel
area
protective
sub
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.)
Pending
Application number
PCT/CN2024/099331
Other languages
English (en)
French (fr)
Inventor
蔺飞明
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
Publication of WO2025189591A1 publication Critical patent/WO2025189591A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • 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
    • H10K59/40—OLEDs integrated with touch screens
    • 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
    • H10K59/873—Encapsulations

Definitions

  • the embodiments of the present application relate to the field of display technology, and in particular, to a display panel and a mobile terminal.
  • terminal bending technology can be used to bend the non-display area of the display device bound to the flexible circuit board and/or chip to the back of the display screen, and apply a protective adhesive layer to the corresponding bending area of the flexible display panel to relieve and release the stress generated by the flexible display panel during the bending process.
  • the protective adhesive layer In order to ensure that the protective adhesive layer can evenly relieve and release the stress in the bending zone, it is necessary to ensure that the thickness of the protective adhesive layer in the entire bending zone is uniform; however, the protective adhesive layer is generally formed by a coating process, and the protective adhesive layer formed by the coating process requires a certain leveling distance. The thickness of the protective adhesive layer within the leveling distance is uneven. Therefore, in order to avoid this leveling distance from entering the bending zone, it is usually necessary to place this leveling distance between the display area and the starting point of the bending zone, resulting in this leveling distance occupying a certain non-display area, affecting the size of the frame of the display panel; at this stage, in order to achieve a narrow frame, the usual practice is to reduce this leveling distance.
  • Embodiments of the present application provide a display panel and a mobile terminal to alleviate the deficiencies in the related art.
  • An embodiment of the present application provides a display panel, including a planar area, a bending area, and a binding area, wherein the bending area is located between the planar area and the binding area.
  • the display panel includes:
  • the display panel body includes a substrate, and an encapsulation layer and a barrier layer stacked on the substrate, wherein the barrier layer is provided on a side of the encapsulation layer away from the substrate, and includes a first barrier portion located within the plane area;
  • a polarizing layer disposed on a side of the barrier layer away from the encapsulation layer, the polarizing layer being located within the planar region, and an orthographic projection of the polarizing layer on the substrate not overlapping with an orthographic projection of at least a portion of the first barrier portion on the substrate;
  • a side of the first protection portion away from the bending protection portion at least abuts against a portion of the first blocking portion.
  • An embodiment of the present application provides a mobile terminal, comprising a terminal body and a display panel, wherein the terminal body and the display panel are integrated into one body, the display panel comprising a flat area, a bending area, and a binding area, the bending area being located between the flat area and the binding area, and the display panel comprising:
  • the display panel body includes a substrate, and an encapsulation layer and a barrier layer stacked on the substrate, wherein the barrier layer is provided on a side of the encapsulation layer away from the substrate, and includes a first barrier portion located within the plane area;
  • the protective layer comprising a first protective portion, a bending protective portion, and a second protective portion arranged continuously, the first protective portion being located in the planar area, the bending protective portion being located in the bending area, and the bending protective portion being located on the outermost surface of the display panel in the bending area, and the second protective portion being located in the binding area;
  • a side of the first protection portion away from the bending protection portion at least abuts against a portion of the first blocking portion.
  • FIG1 is a schematic structural diagram of a display module in the related art
  • FIG2 is a schematic diagram of a first partial structure of a display panel provided by an embodiment of the present application when the display panel is in a bent state;
  • FIG3 is a schematic diagram of a first partial structure of a display panel provided by an embodiment of the present application when in an unfolded state;
  • FIG4 is a schematic diagram of a second partial structure of a display panel provided in an embodiment of the present application when the display panel is in an unfolded state;
  • FIG5 is a schematic diagram of a third partial structure of a display panel provided by an embodiment of the present application when in an unfolded state;
  • FIG6 is a schematic diagram of a second partial structure of a display panel provided by an embodiment of the present application when the display panel is in a bent state;
  • FIG7 is a schematic diagram of a fourth partial structure of a display panel provided in an embodiment of the present application when the display panel is in an unfolded state;
  • FIG8a is a bar chart of the force simulation results of the outermost side of the protective layer in Comparative Example 1, Example 1, and Example 2 provided in the embodiments of the present application;
  • FIG8 b is a bar chart of simulation results of the outermost deformation of the protective layer in Comparative Example 1, Example 1, and Example 2 provided in the embodiments of the present application;
  • FIG8 c is a bar chart showing simulation results of module rebound force of the display panels described in Comparative Example 1, Example 1, and Example 2 provided in the embodiments of the present application;
  • FIG9 is a schematic diagram of a fifth partial structure of a display panel provided in an embodiment of the present application when the display panel is in an unfolded state;
  • FIG10 is a schematic diagram of the structure of a mobile terminal provided in an embodiment of the present application.
  • the display module 1 includes a display panel 11 and a support member 12, the support member 12 is located on the back of the display panel 11, the display panel 11 includes a display portion 111 and a binding portion 113 that are relatively arranged, and a bending portion 112 connected between the display portion 111 and the binding portion 113, the support member 12 includes a first back plate 121, a heat dissipation layer 122, a connecting member 123 and a second back plate 124 that are located between the display portion 111 and the binding portion 113, and is located on the display panel 111.
  • a protective layer 13 is coated on the corresponding bending portion 112 of the panel 11 to relieve and release the stress generated by the display panel 11 during the bending process; currently, in order to achieve a narrow and thin frame of the display module, it is necessary to reduce the width of the non-display area 1A of the display module 1, which will inevitably reduce the leveling distance of the protective layer 13.
  • the usual practice is to reduce the leveling distance of the protective layer 13.
  • the glue coating accuracy of the protective glue layer is prone to poor and large fluctuations, and then problems such as bubbles, glue shortage and poor glue layer uniformity will occur.
  • the display panel includes a plane area, a bending area and a binding area, and the bending area is located between the plane area and the binding area.
  • the display panel includes a display panel body, a protective layer and a polarizing layer: the display panel body includes a substrate, and an encapsulation layer and a barrier layer stacked on the substrate, the barrier layer is provided on the side of the encapsulation layer away from the substrate, the barrier layer includes a first barrier portion, and the first barrier portion is located in the plane area; the protective layer includes a first protective portion, a bending protective portion and a second protective portion which are continuously arranged, the first protective portion is located in the plane area, the bending protective portion is located in the bending area, and the bending protective portion is located on the outermost surface of the display panel in the bending area, and the second protective portion is located in the binding area; the polarizing layer is provided on the side of the barrier layer away from the encapsulation layer, the polarizing layer is located in the plane area, and the ortho
  • the orthographic projection of the polarizing layer on the substrate does not overlap with the orthographic projection of the first protecting portion on the substrate, and a side of the first protecting portion close to the first blocking portion abuts against a side of the first blocking portion close to the first protecting portion.
  • the thickness of the protective layer is greater than 0 and less than or equal to 10 micrometers; the thickness of the first blocking portion is greater than or equal to 1 micrometer and less than or equal to 5 micrometers.
  • the planar region includes a first sub-region and a second sub-region, and the second sub-region is located between the first sub-region and the bending region;
  • the display panel body includes at least one first inorganic layer, the first inorganic layer is located in the first sub-region, and the first blocking portion extends from the first sub-region toward the second sub-region; wherein, at least part of the first blocking portion is located in the second sub-region, and from a top-down perspective of the display panel, the distance between an end of the first blocking portion away from the first sub-region and an end of the first inorganic layer close to the second sub-region is greater than or equal to 0 and less than or equal to 20 microns.
  • the planar area includes a first sub-area and a second sub-area, and the second sub-area is located between the first sub-area and the bending area;
  • the display panel body includes a first inorganic layer, the first inorganic layer is located in the first sub-area, and the first blocking portion extends from the first sub-area toward the direction close to the second sub-area; wherein, the first blocking portion is located in the first sub-area and does not extend to the second sub-area, and from a top-down perspective of the display panel, the distance between one end of the first blocking portion close to the second sub-area and one end of the first inorganic layer close to the second sub-area is greater than or equal to 0 and less than or equal to 50 microns.
  • the orthographic projection of the first protective portion on the substrate overlaps with at least a portion of the orthographic projection of the first blocking portion on the substrate; wherein the first blocking portion is provided with a plurality of grooves, and the plurality of grooves are arranged in sequence from the plane area toward the direction close to the bending area, and the first protective portion fills at least a portion of the grooves.
  • the thickness of the protective layer is greater than 10 micrometers and less than or equal to 20 micrometers.
  • a depth of the groove away from the first protecting portion is smaller than a depth of the groove close to the first protecting portion.
  • the width of the grooves is greater than or equal to 10 micrometers and less than or equal to 40 micrometers; and the distance between two adjacent grooves is greater than or equal to 10 micrometers and less than or equal to 50 micrometers.
  • the display panel body includes a flat layer arranged between the encapsulation layer and the substrate, the flat layer is provided with a first groove, and the orthographic projection of the polarizing layer on the substrate covers the orthographic projection of the first groove on the substrate;
  • the encapsulation layer includes a first recess, the first recess covers the first recess, and the first blocking portion includes a second recess, the second recess covers the first recess; wherein the orthographic projection of the polarizing layer on the substrate partially overlaps with the orthographic projection of the first protective portion on the substrate, and the side of the first protective portion away from the bending protective portion abuts against the inner wall of the second recess.
  • the encapsulation layer includes a first inorganic encapsulation layer and a second inorganic encapsulation layer, and the second inorganic encapsulation layer is arranged on a side of the first inorganic encapsulation layer away from the substrate; wherein, the first inorganic encapsulation layer covers the first groove, the second inorganic encapsulation layer covers the first inorganic encapsulation layer, and the parts of the first inorganic encapsulation layer and the second inorganic encapsulation layer covering the first groove form the first recess.
  • the display panel also includes a touch layer, which is arranged in the planar area, and the touch layer includes a second inorganic layer, a first touch metal layer, a third inorganic layer, a second touch metal layer and an organic layer: the second inorganic layer is arranged on a side of the encapsulation layer away from the substrate; the first touch metal layer is arranged on a side of the second inorganic layer away from the encapsulation layer; the third inorganic layer is arranged on a side of the first touch metal layer away from the second inorganic layer; the second touch metal layer is arranged on a side of the third inorganic layer away from the first touch metal layer; the organic layer is arranged on a side of the second touch metal layer away from the third inorganic layer; wherein the organic layer includes the barrier layer.
  • the thickness of the protective layer is greater than 20 micrometers and less than or equal to 40 micrometers.
  • the first blocking portion is provided with a plurality of grooves, the plurality of grooves are located in the second recess, and the plurality of grooves are arranged in sequence from the planar area toward the bending area; wherein the first protecting portion at least fills a portion of the grooves.
  • the width of the grooves is greater than or equal to 10 micrometers and less than or equal to 40 micrometers; and the distance between two adjacent grooves is greater than or equal to 10 micrometers and less than or equal to 50 micrometers.
  • the display panel further includes a protective glue, which is disposed on a side of the protective layer away from the display panel body, and extends from the planar area toward the binding area, and one end of the protective glue abuts against the polarizing layer; wherein the orthographic projection of the protective glue on the substrate at least partially overlaps with the orthographic projection of the first protective portion on the substrate, and the orthographic projection of the protective glue on the substrate covers the orthographic projection of the bending protective portion on the substrate.
  • a protective glue which is disposed on a side of the protective layer away from the display panel body, and extends from the planar area toward the binding area, and one end of the protective glue abuts against the polarizing layer; wherein the orthographic projection of the protective glue on the substrate at least partially overlaps with the orthographic projection of the first protective portion on the substrate, and the orthographic projection of the protective glue on the substrate covers the orthographic projection of the bending protective portion on the substrate.
  • the mobile terminal includes a terminal body and any one of the above-mentioned display panels, and the terminal body and the display panel are integrated into one.
  • the embodiments of the present application provide a display panel and a mobile terminal, wherein the display panel includes a display panel body, a protective layer, and a polarizing layer, wherein the display panel body includes a substrate, and an encapsulation layer and a barrier layer stacked on the substrate, wherein the barrier layer is provided on a side of the encapsulation layer away from the substrate, the barrier layer includes a first barrier portion, and the first barrier portion is located in the plane area; the protective layer is provided on a side of the encapsulation layer away from the substrate, the protective layer includes a first protective portion, a bending protective portion, and a second protective portion that are continuously arranged, and the first protective portion is located in the plane area.
  • the bending protection portion is located in the bending area, and the second protection portion is located in the binding area;
  • the polarizing layer is provided on the side of the barrier layer away from the encapsulation layer, and the polarizing layer is located in the plane area, and the orthographic projection of the polarizing layer on the substrate does not overlap with the orthographic projection of at least part of the first barrier portion on the substrate; by arranging the side of the first protection portion away from the bending protection portion to abut against at least part of the first barrier portion, the uniformity of the thickness of the protective layer is improved; at the same time, the polarizing layer and the protective layer are prevented from squeezing each other, generating additional stress, causing the protective layer to fall off or display abnormalities, and other problems.
  • the display panel 2 includes a plane area 100, a bending area 200 and a binding area 300, and the bending area 200 is located between the plane area 100 and the binding area 300; it should be noted that the display panel 2 can be a flexible display panel, and the display panel 2 can have a bending state and an unfolded state.
  • the display panel shown in Figure 2 is in a bent state, and the display panel shown in Figure 3 is in an unfolded state; wherein, in the display panel shown in Figure 2, the plane area only draws a partial cross-section, which does not mean the actual size of the plane area.
  • the projection relationship between the film layers described below in this embodiment refers to the projection relationship when the display panel is in the unfolded state.
  • the display panel 2 includes a display panel body 21, a protective layer 22, a polarizing layer 23, a first backplane 241, a supporting member 25, a connecting member 26, a second backplane 242, an optically clear adhesive (OCA) 28, and a cover glass (CG) 29; wherein, the display panel 2 can be a flexible display panel.
  • This embodiment utilizes the bendability of the flexible display panel and adopts terminal bending technology (pad bending) to bend the fan-out area where the pixel lead line (source-drain electrode layer 214) is connected to the external circuit to achieve a narrow frame effect.
  • the display panel body 21 includes a substrate 211.
  • the supporting member 25, the first backplane 241 and the substrate 211 are stacked in sequence; in the binding area 300, the second backplane 242 and the substrate 211 are stacked in sequence; the connecting member 26 is arranged between the supporting member 25 and the second backplane 242;
  • the supporting member 25 includes a supporting part (not shown in the figure) and a heat dissipation part (not shown in the figure), and the material of the supporting part includes but is not limited to metal material or plastic material, and the material of the supporting member 25 includes but is not limited to one of aluminum alloy, stainless steel (SUS), injection-molded copper sheet, copper column or thermoplastic polymer structure material (ABS), and the heat dissipation part includes but is not limited to a metal copper layer, a pressure-sensitive adhesive layer, a white latex layer and a foam rubber layer;
  • the optical adhesive 28 is arranged on the side of the polarizing layer 23 away from the display panel body 21, and the glass cover plate 29 is
  • the substrate 211 may include a flexible substrate, and the material of the substrate 211 includes but is not limited to at least one of acrylic resin, methacrylic resin, polyisoprene, vinyl resin, epoxy resin, polyurethane resin, cellulose resin, silicone resin, polyimide resin, and polyamide resin.
  • the polarizing layer 23 is disposed on a side of the blocking layer 213 away from the encapsulation layer 212 .
  • the polarizing layer 23 is located in the plane area 100 .
  • the orthographic projection of the polarizing layer 23 on the substrate 211 does not overlap with the orthographic projection of at least part of the first blocking portion 213A on the substrate 211 .
  • the orthographic projection of the polarizing layer 23 on the substrate 211 does not overlap with the orthographic projection of the first protective portion 221 on the substrate 211, and the side of the first protective portion 221 close to the first blocking portion 213A abuts the side of the first blocking portion 213A close to the first protective portion 221.
  • the thickness of the first blocking portion 213A is greater than or equal to 1 micron and less than or equal to 5 microns
  • the thickness of the protective layer 22 is greater than 0 and less than or equal to 10 microns
  • the elastic modulus of the protective layer 22 is greater than or equal to 500 MPa
  • the elongation at break of the protective layer 22 is greater than or equal to 125%
  • the protective layer 22 can be formed by an inkjet printing process. Due to process reasons, the thickness of the first protective layer 22 gradually decreases at one end where printing is stopped (i.e., the side of the first protective portion 221 close to the first blocking portion 213A), and the protective layer 22 is the part where leveling does not occur (the bending protective portion 222), and its thickness at each position is equal.
  • this embodiment can adopt inkjet printing to form the protective layer.
  • the inkjet printing process can improve the uniformity of the protective layer and effectively reduce the thickness of the protective layer, thereby shortening the leveling distance required for the protective layer.
  • the design provided in this embodiment can set the side of the first protective part close to the first blocking part to abut the side of the first blocking part close to the first protective part before the polarizing layer is bonded, that is, the first blocking part acts as a retaining wall, so that the orthographic projection of the polarizing layer on the substrate and the orthographic projection of the first protective part on the substrate do not overlap, thereby avoiding the mutual squeezing of the polarizing layer and the protective layer, generating additional stress, causing the protective layer to fall off or display abnormalities, and other problems.
  • the planar area 100 includes a first sub-area 110 and a second sub-area 120, and the second sub-area 120 is located between the first sub-area 110 and the bending area 200;
  • the display panel body 21 includes at least one first inorganic layer 215, and the first inorganic layer 215 is located in the first sub-area 110, and the first blocking portion 213A extends from the first sub-area 110 toward the direction close to the second sub-area 120; wherein, the first blocking portion 213A is located in the first sub-area 110 and does not extend to the second sub-area 120, and from a top-down perspective of the display panel 2, the distance between one end of the first blocking portion 213A close to the second sub-area 120 and one end of the first inorganic layer 215 close to the second sub-area 120 is greater than or equal to 0, and less than or equal to 50 microns.
  • the first protective portion 221 extends from the second planar area 100 toward the direction close to the first planar area 100, and there is a first distance (not marked in the figure) between the end of the first blocking portion 213A close to the second sub-area 120 and the end of the first inorganic layer 215 close to the second sub-area 120, and the first distance is greater than or equal to 0 and less than or equal to 50 microns; in the direction in which the first protective portion 221 points to the first blocking portion 213A, the second planar area 100 has a first length L1, wherein the first length L1 can be selected according to actual production, and this embodiment does not impose any restrictions on this.
  • the first spacing is equal to 0, and the length of the first protective portion 221 is equal to the first length L1 of the second plane area 100; it can be understood that the length of the first protective portion 221 can be used as the leveling distance required when the protective layer 22 is prepared by the inkjet printing process. In the actual production process, the leveling distance required for the protective layer 22 of different thicknesses is different.
  • this embodiment sets the first blocking portion 213A to be located in the first sub-area 110 and does not extend to the The second sub-area 120 controls the size of the first spacing, thereby extending the leveling distance of the protective layer 22, and further making the barrier layer 213 applicable to the protective layer 22 with different leveling distances.
  • the leveling distance of the protective layer 22 is equal to the sum of the first spacing and the first length L1; at the same time, extending the leveling distance of the protective layer 22 can improve the uniformity of the thickness of the protective layer 22, avoiding the problems in the prior art such as poor coating accuracy of the protective layer 22 due to limitations of the glue coating equipment and process, resulting in bubbles, glue shortages, and poor glue layer uniformity.
  • the display panel body 21 further includes a buffer layer 216, a pixel definition layer 217, a flattening layer 218 and an organic photoresist layer 219 stacked on the substrate 211, the buffer layer 216 is arranged between the substrate 211 and the first inorganic layer 215, the flattening layer 218 is arranged between the first inorganic layer 215 and the pixel definition layer 217, the flattening layer 218 includes a first flattening layer 2181, a second flattening layer 2182 and a third flattening layer 2183 stacked, the pixel definition layer 217 is arranged between the flattening layer 218 and the encapsulation layer 212, and the organic photoresist layer 219 is arranged on the side of the pixel definition layer 217 away from the substrate 211; wherein, in the bending area 200, the protective layer 22 is arranged on the side of the organic photoresist layer 219 away from the pixel definition layer 217.
  • Figure 4 is a schematic diagram of the second local structure of the display panel provided in the embodiment of the present application when it is in the unfolded state; wherein, the structure of the display panel is similar/identical to the structure of the display panel provided in the above embodiment, please refer to the description of the display panel in the above embodiment for details.
  • the planar area 100 includes a first sub-area 110 and a second sub-area 120, and the second sub-area 120 is located between the first sub-area 110 and the bending area 200;
  • the display panel body 21 includes a first inorganic layer 215, and the first inorganic layer 215 is located in the first sub-area 110, and the first blocking portion 213A extends from the first sub-area 110 toward the direction close to the second sub-area 120; wherein, at least part of the first blocking portion 213A is located in the second sub-area 120, and from a top-down perspective of the display panel 2, the distance between the end of the first blocking portion 213A away from the first sub-area 110 and the end of the first inorganic layer 215 close to the second sub-area 120 is greater than or equal to 0, and less than or equal to 20 microns.
  • the first protective portion 221 extends from the second planar area 100 toward the direction close to the first planar area 100, and there is a second distance L2 between the end of the first blocking portion 213A away from the first sub-area 110 and the end of the first inorganic layer 215 close to the second sub-area 120, and the second distance is greater than or equal to 0 and less than or equal to 20 microns; in the direction where the first protective portion 221 points to the first blocking portion 213A, the second planar area 100 has a first length L1, wherein the first length L1 can be selected according to actual conditions, and this embodiment does not impose any restrictions on this.
  • the length of the first protective portion 221 is less than the first length L1 of the second plane area 100; it can be understood that the length of the first protective portion 221 can be used as the leveling distance required when the protective layer 22 is prepared by an inkjet printing process.
  • the leveling distance required for the protective layer 22 is small, at least part of the first blocking portion 213A can be set to be located in the second sub-area 120.
  • the blocking layer 213 can be adapted to the protective layer 22 with different leveling distances.
  • the leveling distance of the protective layer 22 is equal to the difference between the first length L1 and the second spacing L2, so that the side of the first protective portion 221 close to the first blocking portion 213A is in contact with the side of the first blocking portion 213A close to the first protective portion 221, thereby meeting the requirement of a narrow frame.
  • Figure 5 is a schematic diagram of the third local structure of the display panel provided in the embodiment of the present application when it is in the expanded state; wherein, the structure of the display panel is similar/identical to the structure of the display panel provided in the above embodiment, please refer to the description of the display panel in the above embodiment for details.
  • the thickness of the protective layer 22 is greater than 10 microns and less than or equal to 20 microns; in the plane area 100, the orthographic projection of the first protective portion 221 on the substrate 211 overlaps with at least a portion of the orthographic projection of the first blocking portion 213A on the substrate 211; wherein, the first blocking portion 213A is provided with a plurality of grooves 2131A, and the plurality of grooves 2131A are arranged in sequence from the plane area 100 toward the bending area 200, and the first protective portion 221 at least fills a portion of the grooves 2131A, thereby further extending the leveling distance of the protective layer 22 and improving the uniformity of the thickness of the bending protective portion 222 of the protective layer 22; and, the plurality of grooves 2131A can play a more reliable stopping role, effectively preventing the first protective portion 221 from overflowing through the first blocking portion 213A, thereby enhancing the blocking ability of the first blocking portion 213A.
  • the depth of one of the grooves 2131A away from the first protecting portion 221 is smaller than the depth of the other groove 2131A close to the first protecting portion 221 .
  • the number of the grooves 2131A is greater than or equal to 1 and less than or equal to 10; the width of the grooves 2131A is greater than or equal to 10 microns and less than or equal to 40 microns; the spacing between two adjacent grooves 2131A is greater than or equal to 10 microns and less than or equal to 50 microns.
  • this embodiment adjusts the leveling distance of the protective layer 22 by controlling the spacing between two adjacent grooves 2131A; by controlling the depth, width and number of the grooves 2131A, the stopping effect of the first blocking portion 213A can be enhanced, and the overflow of the first protective portion 221 through the first blocking portion 213A can be effectively avoided; it should be noted that this embodiment does not impose any specific restrictions on the number, depth, width and spacing of the grooves 2131A.
  • Figure 6 is a schematic diagram of the second local structure of the display panel provided in the embodiment of the present application when it is in a bent state; wherein, the structure of the display panel is similar/identical to the structure of the display panel provided in the above embodiment, please refer to the description of the display panel in the above embodiment for details.
  • the display panel 2 also includes a protective glue 27, which is arranged on a side of the protective layer 22 away from the display panel body 21, and the protective glue 27 extends from the planar area 100 toward the direction close to the binding area 300, and one end of the protective glue 27 abuts against the polarizing layer 23; wherein, the orthographic projection of the protective glue 27 on the substrate 211 at least partially overlaps with the orthographic projection of the first protective portion 221 on the substrate 211, and the orthographic projection of the protective glue 27 on the substrate 211 covers the orthographic projection of the bending protection portion 222 on the substrate 211.
  • the protective glue 27 includes a first protective sub-glue 271, a second protective sub-glue 272 and a third protective sub-glue 273, the second protective sub-glue 272, the first protective sub-glue 271 is located in the planar area 100, the second protective sub-glue 272 is located in the bending area 200, and the third protective sub-glue 273 is located in the binding area 300; wherein, the first protective sub-glue 271 covers the first protective part 221, the second protective sub-glue 272 covers the bending protection part 222, and the third protective sub-glue 273 covers the second protective part 223, and the protective layer 22 can serve as the base layer of the protective glue 27.
  • the display panel 2 includes a plurality of stacked film layers.
  • a neutral plane will be formed inside the plurality of stacked film layers in the bending area 200.
  • the tensile stress and compressive stress on the neutral plane are balanced with each other, and the neutral plane is the neutral plane of stress distribution.
  • the neutral plane is generally located inside the substrate 211, and the metal traces (such as the source-drain electrode layer 214) in the display panel body 21 are located outside the neutral plane and will be subject to greater tensile stress.
  • the protective layer 22 on the substrate 211 so that the positive projection of the metal traces on the substrate 211 covers the positive projection of the metal traces on the substrate 211, the stress generated by the display panel body 21 during the bending process is relieved and released, thereby reducing the force applied to the metal traces when the display panel 2 is bent.
  • the bending protection portion 222 is located in the bending area 200, and the bending protection portion 222 is located on the outermost surface of the display panel 2 in the bending area 200. At this time, the bending protection portion 222 will be subjected to a larger tensile stress.
  • the thickness of the protective layer 22 is thin, for example, in the display panel shown in Figure 2, the thickness of the protective layer 22 is greater than 0 and less than or equal to 10 microns, the protective layer 22 may not be able to better protect the metal wiring.
  • the protective glue 27 is arranged to cover the protective layer 22, and the orthographic projection of the protective glue 27 on the substrate 211 covers the orthographic projection of the bending protection part 222 on the substrate 211, so that the position of the neutral plane in the bending area 200 can be adjusted.
  • the position of the neutral plane is adjusted to the side of the metal trace away from the substrate 211.
  • the neutral plane is located closer to the metal trace, the tensile stress on the metal trace is reduced, thereby reducing the risk of the metal trace breaking under the action of tensile stress.
  • this embodiment uses the protective layer 22 as the base layer of the protective glue 27 and extends the leveling distance of the protective layer 22 to improve the uniformity of the thickness of the protective layer 22, making the surface of the protective layer 22 smooth, thereby ensuring the uniformity of the protective glue 27 and effectively reducing the thickness of the protective glue 27, thereby avoiding problems such as bubbles, glue deficiency, and poor uniformity of the glue layer in the protective layer in the prior art.
  • Figure 7 is a schematic diagram of the fourth local structure of the display panel provided in an embodiment of the present application when it is in an expanded state; wherein, the structure of the display panel is similar/identical to the structure of the display panel provided in the above embodiment, please refer to the description of the display panel in the above embodiment for details.
  • the thickness of the protective layer 22 is greater than 20 microns and less than or equal to 40 microns;
  • the flat layer 218 is provided with a first groove 218A, and the orthographic projection of the polarizing layer 23 on the substrate 211 covers the orthographic projection of the first groove 218A on the substrate 211;
  • the encapsulation layer 212 includes a first recess 212A, and the first recess 212A covers the first recess 218A;
  • the first blocking portion 213A includes a second recess 213A1, and the second recess 213A1 covers the first recess 212A; wherein the orthographic projection of the polarizing layer 23 on the substrate 211 partially overlaps with the orthographic projection of the first protective portion 221 on the substrate 211, and the side of the first protective portion 221 away from the bending protective portion 222 abuts against the inner wall of the second recess 213A1.
  • the display panel body 21 also includes a light-emitting layer 2120 and a pixel definition layer 217 stacked on the substrate 211, the pixel definition layer 217 is arranged between the flat layer 218 and the encapsulation layer 212, the pixel definition layer 217 has an opening, and the light-emitting layer 2120 is arranged in the opening 217A; wherein, the first inorganic layer 215 is arranged between the light-emitting layer 2120 and the substrate 211.
  • the flat layer 218 includes a first flat layer 2181, a second flat layer 2182 and a third flat layer 2183 stacked on the first inorganic layer 215, the third flat layer 2183 is provided with a first groove 218A, and the first groove 218A exposes a portion of the first inorganic layer 215;
  • the encapsulation layer 212 includes at least a first inorganic encapsulation layer 2121 and a second inorganic encapsulation layer 2122 stacked, the second inorganic encapsulation layer 2122 is provided on a side of the first inorganic encapsulation layer 2121 away from the substrate 211; wherein the first inorganic encapsulation layer 2121 covers the first groove 218A, and the second inorganic encapsulation layer 2122 covers the first inorganic encapsulation layer 2121.
  • the encapsulation layer 2121, and the first inorganic encapsulation layer 2121 and the second inorganic encapsulation layer 2122 cover the part of the first groove 218A to form the first recess 212A, and the first inorganic encapsulation layer 2121 contacts the first inorganic layer 215 through the first groove 218A;
  • the barrier layer 213 covers the first recess 212A, thereby forming a second recess 213A1, and the second recess 213A1 covers the first recess 212A
  • the first protection portion 221 extends from the second sub-region 120 in the direction close to the first sub-region 110, and the side of the first protection portion 221 away from the bending protection portion 222 abuts against the inner wall of the second recess 213A1.
  • the orthographic projection of the polarizing layer 23 on the substrate 211 is arranged to partially overlap with the orthographic projection of the first protective portion 221 on the substrate 211, thereby avoiding the polarizing layer 23 and the protective layer 22 from squeezing each other, generating additional stress, and causing the protective layer 22 to fall off or display abnormalities.
  • the second recess 213A1 acts as a barrier to prevent overflow of the first protective portion 221.
  • this embodiment sets the first protective portion 221 to extend from the second sub-area 120 toward the direction close to the first sub-area 110, and the side of the first protective portion 221 away from the bending protective portion 222 abuts against the inner wall of the second recess 213A1, thereby extending the leveling distance of the protective layer 22, and improving the uniformity of the thickness of the protective layer 22, avoiding the problems in the prior art such as poor coating accuracy of the protective layer 22 due to limitations of the glue coating equipment and process, resulting in bubbles, glue shortages, and poor glue layer uniformity.
  • the display panel 2 further includes a touch layer 220, the touch layer 220 is provided in the plane area 100, the touch layer 220 includes a second inorganic layer 2201, a first touch metal layer 2202, a third inorganic layer 2203, a second touch metal layer 2204 and an organic layer 2205 arranged in a stacked manner, the second inorganic layer 2201 is provided on a side of the encapsulation layer 212 away from the substrate 211; the first touch metal layer 2202 is provided on the second inorganic layer 2201.
  • the organic layer 2201 is located on a side away from the encapsulation layer 212; the fifth inorganic layer is located on a side of the first touch metal layer 2202 away from the second inorganic layer 2201; the second touch metal layer 2204 is located on a side of the third inorganic layer 2203 away from the first touch metal layer 2202; the organic layer 2205 is located on a side of the second touch metal layer 2204 away from the third inorganic layer 2203; wherein the organic layer 2205 includes the blocking layer 213.
  • Example 1 Material UV lnk1 lnk2 Thickness (um) 60 30 twenty four Elastic modulus (Mpa) 504 1350 1880
  • the display panel provided in Comparative Example 1 is shown in FIG1 , wherein the material of the protective layer 13 is a UV material; the display panel provided in Example 1 is shown in FIG7 , wherein the material of the protective layer 22 is a lnk1 material; the display panel provided in Example 2 is shown in FIG7 , wherein the material of the protective layer 22 is a lnk2 material; it should be noted that this embodiment does not impose any specific restrictions on the lnk1 material provided in Example 1, the lnk2 material provided in Example 2, and the UV material provided in Comparative Example 1.
  • the elastic modulus of the protective layer can be adjusted to maintain the force on the internal circuits of the display panel unchanged after bending, thereby protecting the circuits.
  • Figure 9 is a schematic diagram of the fifth local structure of the display panel provided in an embodiment of the present application when it is in an expanded state; wherein, the structure of the display panel is similar/identical to the structure of the display panel provided in the above embodiment, please refer to the description of the display panel in the above embodiment for details.
  • the first blocking portion 213A is provided with a plurality of grooves 2131A, and the plurality of grooves 2131A are located in the second recess 213A1, and the plurality of grooves 2131A are arranged in sequence from the plane area 100 toward the bending area 200; wherein, the first protection portion 221 at least fills a portion of the grooves 2131A, and the depth of the grooves 2131A is less than or equal to the thickness of the blocking layer 213, thereby further extending the leveling distance of the protection layer 22 and improving the uniformity of the thickness of the bending protection portion 222 of the protection layer 22; and, the plurality of grooves 2131A can play a more reliable stopping role, effectively preventing the first protection portion 221 from overflowing through the first blocking portion 213A, thereby enhancing the blocking ability of the first blocking portion 213A.
  • the depth of one of the grooves 2131A away from the first protecting portion 221 is smaller than the depth of the other groove 2131A close to the first protecting portion 221 .
  • the number of the grooves 2131A is greater than or equal to 1 and less than or equal to 10; the width of the grooves 2131A is greater than or equal to 10 microns and less than or equal to 40 microns; the spacing between two adjacent grooves 2131A is greater than or equal to 10 microns and less than or equal to 50 microns.
  • this embodiment adjusts the leveling distance of the protective layer 22 by controlling the spacing between two adjacent grooves 2131A; by controlling the depth, width and number of the grooves 2131A, the stopping effect of the first blocking portion 213A can be enhanced, and the overflow of the first protective portion 221 through the first blocking portion 213A can be effectively avoided; it should be noted that this embodiment does not impose any specific restrictions on the number, depth, width and spacing of the grooves 2131A.
  • FIG10 is a schematic diagram of the structure of a mobile terminal provided in an embodiment of the present application.
  • This embodiment provides a mobile terminal 3 , which includes a terminal body 3A and the display panel 2 described in any of the above embodiments.
  • the terminal body 3A and the display panel 2 are integrated into one.
  • terminal body 3A includes but is not limited to a frame, and the display panel 2 has been described in detail in the above embodiment and will not be repeated here.
  • the mobile terminal 3 can be the display screen of a smart phone, tablet computer, laptop computer, smart bracelet, smart watch, smart glasses, smart helmet, desktop computer, smart TV or digital camera, and can even be used on electronic devices with flexible display screens.

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Abstract

本申请提供一种显示面板及移动终端，该显示面板包括显示面板本体、保护层以及偏光层；通过设置第一保护部远离弯折保护部的一侧至少与部分第一阻挡部抵接，从而提升保护层厚度的均一性。

Description

显示面板及移动终端
本申请要求于2024年03月13日提交的申请号为202410291956.5的中国
专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及显示技术领域，尤其涉及一种显示面板及移动终端。
 背景技术
目前，随着电子技术的发展，如手机、平板电脑等电子设备已经成为人们日常生活和工作中不可或缺的一部分；为实现显示装置的窄边框化，可采用端子弯曲技术(pad bending)，将绑定柔性电路板和/或芯片的显示装置的非显示区弯折到显示屏的背面，并在柔性显示面板对应弯折区涂布一层保护胶层，来缓解和释放掉柔性显示面板在弯折过程中产生的应力。
为了使得保护胶层可以均匀地缓解和释放弯折区的应力，需确保整个弯折区的保护胶层的厚度是均匀的；然而，保护胶层一般是通过涂布工艺形成，涂布工艺形成的保护胶层需要有一定的流平距离，流平距离内的保护胶层的厚度是不均匀的，因此为了避免这一流平距离进入弯折区，通常需要将这一流平距离置于显示区和弯折区起始点之间，导致这一流平距离会占据一定的非显示区，影响显示面板的边框大小；现阶段为了实现窄边框，通常的做法是减小这一流平距离，然而当保护胶层的流平距离减小时，由于涂胶设备和工艺的限制，容易出现保护胶层的胶水涂布精度差、波动大，进而出现气泡、缺胶以及胶层均一性差等问题。
 发明概述
本申请实施例提供一种显示面板及移动终端，用以缓解相关技术中的不足。
为实现上述功能，本申请实施例提供的技术方案如下：
本申请实施例提供一种显示面板，包括平面区、弯折区以及绑定区，所述弯折区位于所述平面区以及所述绑定区之间，所述显示面板包括：
显示面板本体，包括衬底、以及层叠设于所述衬底上的封装层和阻挡层，所述阻挡层设于所述封装层远离所述衬底的一侧，所述阻挡层包括第一阻挡部，所述第一阻挡部位于所述平面区内；
保护层，所述保护层包括连续设置的第一保护部、弯折保护部和第二保护部，所述第一保护部位于所述平面区内，所述弯折保护部位于所述弯折区内，且所述弯折保护部位于所述弯折区的显示面板的最外侧表面，所述第二保护部位于所述绑定区内；以及
偏光层，设于所述阻挡层远离所述封装层的一侧，所述偏光层位于所述平面区内，所述偏光层在所述衬底上的正投影至少与部分所述第一阻挡部在所述衬底上的正投影不交叠；
其中，所述第一保护部远离所述弯折保护部的一侧至少与部分所述第一阻挡部抵接。
本申请实施例提供一种移动终端，所述移动终端包括终端主体和显示面板，所述终端主体与所述显示面板组合为一体，所述显示面板包括平面区、弯折区以及绑定区，所述弯折区位于所述平面区以及所述绑定区之间，所述显示面板包括：
显示面板本体，包括衬底、以及层叠设于所述衬底上的封装层和阻挡层，所述阻挡层设于所述封装层远离所述衬底的一侧，所述阻挡层包括第一阻挡部，所述第一阻挡部位于所述平面区内；
保护层，所述保护层包括连续设置的第一保护部、弯折保护部和第二保护部，所述第一保护部位于所述平面区内，所述弯折保护部位于所述弯折区内，且所述弯折保护部位于所述弯折区的显示面板的最外侧表面，所述第二保护部位于所述绑定区内；以及
偏光层，设于所述阻挡层远离所述封装层的一侧，所述偏光层位于所述平面区内，所述偏光层在所述衬底上的正投影至少与部分所述第一阻挡部在所述衬底上的正投影不交叠；
其中，所述第一保护部远离所述弯折保护部的一侧至少与部分所述第一阻挡部抵接。
 附图说明
下面结合附图，通过对本申请的具体实施方式详细描述，将使本申请的技术方案及其它有益效果显而易见。
图1为相关技术中显示模组的结构示意图；
图2为本申请实施例所提供的显示面板处于弯折状态时的第一种局部结构示意图；
图3为本申请实施例所提供的显示面板处于展开状态时的第一种局部结构示意图；
图4为本申请实施例所提供的显示面板处于展开状态时的第二种局部结构示意图；
图5为本申请实施例所提供的显示面板处于展开状态时的第三种局部结构示意图；
图6为本申请实施例所提供的显示面板处于弯折状态时的第二种局部结构示意图；
图7为本申请实施例所提供的显示面板处于展开状态时的第四种局部结构示意图；
图8a为本申请实施例所提供的对比例1、实施例1和实施例2中所述保护层的最外侧受力仿真结果柱形图；
图8b为本申请实施例所提供的对比例1、实施例1和实施例2中所述保护层的最外则变形仿真结果柱形图；
图8c为本申请实施例所提供的对比例1、实施例1和实施例2中所述显示面板的模组反弹力仿真结果柱形图；
图9为本申请实施例所提供的显示面板处于展开状态时的第五种局部结构示意图；
图10为本申请实施例所提供的移动终端的结构示意图。
 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、完整地描述，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他实施例，都属于本申请保护的范围。
请结合图1，为相关技术中显示模组的结构示意图；在相关技术中，所述显示模组1包括显示面板11和支撑件12，所述支撑件12位于所述显示面板11的背面，所述显示面板11包括相对设置的显示部111和绑定部113、以及连接于所述显示部111和所述绑定部113之间的弯折部112，所述支撑件12包括位于所述显示部111和所述绑定部113之间的第一背板121、散热层122、连接构件123以及第二背板124，并在显示面板11对应弯折部112涂布一层保护层13，来缓解和释放掉显示面板11在弯折过程中产生的应力；目前，为了实现显示模组的窄边框轻薄化，需要减小所述显示模组1的非显示区1A的宽度，则势必会减小所述保护层13的流平距离，通常的做法是减小所述保护层13的流平距离，而当所述保护层13的流平距离减小时，由于涂胶设备和工艺的限制，容易出现保护胶层的胶水涂布精度差、波动大，进而出现气泡、缺胶以及胶层均一性差等问题。
本申请实施例提供一种显示面板及移动终端，用以避免现有技术中，由于涂胶设备和工艺的限制，容易出现保护层的涂布精度差，而导致出现气泡、缺胶以及胶层均一性差等问题。
所述显示面板，包括平面区、弯折区以及绑定区，所述弯折区位于所述平面区以及所述绑定区之间，所述显示面板包括显示面板本体、保护层以及偏光层：所述显示面板本体包括衬底、以及层叠设于所述衬底上的封装层和阻挡层，所述阻挡层设于所述封装层远离所述衬底的一侧，所述阻挡层包括第一阻挡部，所述第一阻挡部位于所述平面区内；所述保护层包括连续设置的第一保护部、弯折保护部和第二保护部，所述第一保护部位于所述平面区内，所述弯折保护部位于所述弯折区内，且所述弯折保护部位于所述弯折区的显示面板的最外侧表面，所述第二保护部位于所述绑定区内；所述偏光层设于所述阻挡层远离所述封装层的一侧，所述偏光层位于所述平面区内，所述偏光层在所述衬底上的正投影至少与部分所述第一阻挡部在所述衬底上的正投影不交叠；其中，所述第一保护部远离所述弯折保护部的一侧至少与部分所述第一阻挡部抵接。
在一实施例中，所述偏光层在所述衬底上的正投影与所述第一保护部在所述衬底上的正投影不交叠，所述第一保护部靠近所述第一阻挡部的一侧与所述第一阻挡部靠近所述第一保护部的一侧抵接。
在一实施例中，所述保护层的厚度大于0，且小于或等于10微米；所述第一阻挡部的厚度大于或等于1微米，且小于或等于5微米。
在一实施例中，所述平面区包括第一子区和第二子区，所述第二子区位于所述第一子区和所述弯折区之间；
所述显示面板本体包括至少一层第一无机层，所述第一无机层位于所述第一子区内，所述第一阻挡部由所述第一子区向靠近所述第二子区的方向延伸；其中，至少部分所述第一阻挡部位于所述第二子区内，且在所述显示面板的俯视角下，所述第一阻挡部远离所述第一子区的一端与所述第一无机层靠近所述第二子区的一端之间的间距大于等于0，且小于或等于20微米。
在一实施例中，所述平面区包括第一子区和第二子区，所述第二子区位于所述第一子区和所述弯折区之间；所述显示面板本体包括第一无机层，所述第一无机层位于所述第一子区内，所述第一阻挡部由所述第一子区向靠近所述第二子区的方向延伸；其中，所述第一阻挡部位于所述第一子区内，且未延伸至所述第二子区，在所述显示面板的俯视角下，所述第一阻挡部靠近所述第二子区的一端与所述第一无机层靠近所述第二子区的一端之间的间距大于等于0，且小于或等于50微米。
在一实施例中，在所述平面区内，所述第一保护部在所述衬底上的正投影至少与部分所述第一阻挡部在所述衬底上的正投影重叠；其中，所述第一阻挡部开设有多个开槽，多个所述开槽由所述平面区向靠近所述弯折区的方向依次排列，所述第一保护部至少填充部分所述开槽。
在一实施例中，所述保护层的厚度大于10微米，且小于或等于20微米。
在一实施例中，在所述第一阻挡部远离所述第一保护部的方向上，任意两所述开槽中，其中一远离所述第一保护部的所述开槽的深度小于另一靠近所述第一保护部的所述开槽的深度。
在一实施例中，所述开槽的宽度大于或等于10微米，且小于或等于40微米；相邻两所述开槽的间距大于等于10微米，且小于或等于50微米。
在一实施例中，所述显示面板本体包括设于所述封装层和所述衬底之间的平坦层，所述平坦层开设有第一凹槽，所述偏光层在所述衬底上的正投影覆盖所述第一凹槽在所述衬底上的正投影；所述封装层包括第一凹部，所述第一凹部覆盖所述第一凹槽，所述第一阻挡部包括第二凹部，所述第二凹部覆盖所述第一凹部；其中，所述偏光层在所述衬底上的正投影与所述第一保护部在所述衬底上的正投影部分重叠，所述第一保护部远离所述弯折保护部的一侧与所述第二凹部的内壁抵接。
在一实施例中，所述封装层包括第一无机封装层和第二无机封装层，所述第二无机封装层设于所述第一无机封装层远离所述衬底的一侧；其中，所述第一无机封装层覆盖所述第一凹槽，所述第二无机封装层覆盖所述第一无机封装层，且所述第一无机封装层和所述第二无机封装层覆盖所述第一凹槽的部分形成所述第一凹部。
在一实施例中，所述显示面板还包括触控层，所述触控层设于所述平面区内，所述触控层包括第二无机层、第一触控金属层、第三无机层、第二触控金属层以及有机层：所述第二无机层设于所述封装层远离所述衬底的一侧；所述第一触控金属层设于所述第二无机层远离所述封装层的一侧；所述第三无机层设于所述第一触控金属层远离所述第二无机层的一侧；所述第二触控金属层设于所述第三无机层远离所述第一触控金属层的一侧；所述有机层设于所述第二触控金属层远离所述第三无机层的一侧；其中，所述有机层包括所述阻挡层。
在一实施例中，所述保护层的厚度大于20微米，且小于或等于40微米。
在一实施例中，所述第一阻挡部开设有多个开槽，多个所述开槽位于所述第二凹部内，且多个所述开槽由所述平面区向靠近所述弯折区的方向依次排列；其中，所述第一保护部至少填充部分所述开槽。
在一实施例中，所述开槽的宽度大于或等于10微米，且小于或等于40微米；相邻两所述开槽的间距大于或等于10微米，且小于或等于50微米。
在一实施例中，所述显示面板还包括保护胶，所述保护胶设于所述保护层远离所述显示面板本体的一侧，所述保护胶由所述平面区向靠近所述绑定区的方向伸延，且所述保护胶的一端与所述偏光层抵接；其中，所述保护胶在所述衬底上的正投影与所述第一保护部在所述衬底上的正投影至少部分重叠，且所述保护胶在所述衬底上的正投影覆盖所述弯折保护部在所述衬底上的正投影。
所述移动终端包括终端主体和上述任一所述的显示面板，所述终端主体与所述显示面板组合为一体。
本申请实施例的有益效果：本申请实施例提供了一种显示面板及移动终端，所述显示面板包括显示面板本体、保护层以及偏光层，所述显示面板本体包括衬底、以及层叠设于所述衬底上的封装层和阻挡层，所述阻挡层设于所述封装层远离所述衬底的一侧，所述阻挡层包括第一阻挡部，所述第一阻挡部位于所述平面区内；所述保护层设于所述封装层远离所述衬底的一侧，所述保护层包括连续设置的第一保护部、弯折保护部和第二保护部，所述第一保护部位于所述平面区内，所述弯折保护部位于所述弯折区内，所述第二保护部位于所述绑定区内；所述偏光层设于所述阻挡层远离所述封装层的一侧，所述偏光层位于所述平面区内，所述偏光层在所述衬底上的正投影至少与部分所述第一阻挡部在所述衬底上的正投影不交叠；通过设置所述第一保护部远离所述弯折保护部的一侧至少与部分所述第一阻挡部抵接，从而提升所述保护层厚度的均一性；同时，避免所述偏光层与所述保护层相互挤压，产生额外应力，引起所述保护层脱落或显示异常等问题。
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。
请结合图2和图3；其中，图2为本申请实施例所提供的显示面板处于弯折状态时的第一种局部结构示意图；图3为本申请实施例所提供的显示面板处于展开状态时的第一种局部结构示意图。
在一些实施例中，所述显示面板2包括平面区100、弯折区200以及绑定区300，所述弯折区200位于所述平面区100以及所述绑定区300之间；需要说明的是，所述显示面板2可以为柔性显示面板，所述显示面板2可以具有弯折状态和展开状态，图2中示出的显示面板处于弯折状态，图3中示出的显示面板处于展开状态；其中，在图2所示的显示面板中，所述平面区仅画出部分截面，并不意味所述平面区的实际大小，本实施例下面描述的各膜层之间的投影关系指的是在显示面板处于展开状态下的投影关系。
所述显示面板2包括显示面板本体21、保护层22、偏光层23、第一背板241、支撑构件25、连接构件26、第二背板242、光学胶(Optically Clear Adhesive，OCA)28以及玻璃盖板（Cover Glass，CG）29；其中，所述显示面板2可以为柔性显示面板，本实施例利用柔性显示面板的可弯折性，采用端子弯曲技术（Pad bending），将像素引出线（源漏电极层214）连接外接电路的位置扇出区域进行弯折，实现窄边框效果。
需要说明的是，本实施例在图2中仅画出了所述显示面板本体的示意图，在图2中，所述显示面板本体的具体膜层结构没有一一示出；其中，所述显示面板本体的具体膜层结构可以参阅图3所示的显示面板示意图，本实施例在此不做赘述。
所述显示面板本体21包括衬底211，在所述平面区100内，依次层叠设置有所述支撑构件25、所述第一背板241以及所述衬底211；在所述绑定区300内，依次层叠设置有所述第二背板242和所述衬底211；所述连接构件26设于所述支撑构件25和所述第二背板242之间；所支撑构件25包括支撑部（图中未画出）和散热部（图中未画出），所述支撑部材料包括但不限于金属材料或者塑性材料，所述支撑构件25的材料包括但不限于铝合金、不锈钢（SUS）、注塑铜片、铜柱或者热塑型高分子结构材料（ABS）中的一种，所述散热部包括但不限于金属铜层、压敏胶层、白乳胶层以及泡沫橡胶层；所述光学胶28设于所述偏光层23远离所述显示面板本体21的一侧，所述玻璃盖板29设于所述光学胶28远离所述偏光层23的一侧。
所述显示面板本体21还包括层叠设置于所述衬底211上的封装层212和阻挡层213，所述阻挡层213设于所述封装层212远离所述衬底211的一侧，所述阻挡层213包括第一阻挡部213A和第二阻挡部213B，所述第一阻挡部213A位于所述平面区100内，所述第二阻挡部213B位于所述绑定区300内；其中，所述封装层212和所述第一阻挡部213A均位于所述显示面板本体21出光的一侧。
所述衬底211可以包括柔性衬底，所述衬底211的材料包括但不限于丙烯酸树脂、甲基丙烯酸树脂、聚异戊二烯、乙烯基树脂、环氧基树脂、聚氨酯基树脂、纤维素树脂、硅氧烷树脂、聚酰亚胺基树脂、聚酰胺基树脂中的至少一种。
所述保护层22位于所述第一阻挡部213A和所述第二阻挡部213B之间，所述保护层22包括连续设置的第一保护部221、弯折保护部222和第二保护部223，所述第一保护部221位于所述平面区100内，所述弯折保护部222位于所述弯折区200内，且所述弯折保护部222位于所述弯折区200的显示面板2的最外侧表面，所述第二保护部223位于所述绑定区300内；其中，所述第一保护部221远离所述弯折保护部222的一侧至少与部分所述第一阻挡部213A抵接，所述第一阻挡部213A起到阻挡所述第一保护部221溢流的屏障作用；所述弯折保护部222在所述衬底211上的正投影覆盖所述源漏电极层214在所述衬底211上的正投影，从而缓解和释放掉所述显示面板本体21在弯折过程中产生的应力，进而减小所述源漏电极层214在所述显示面板2弯折时受到的作用力。
所述偏光层23设置于所述阻挡层213远离所述封装层212的一侧，所述偏光层23位于所述平面区100内，所述偏光层23在所述衬底211上的正投影至少与部分所述第一阻挡部213A在所述衬底211上的正投影不交叠。
请继续结合图1和图2，在一些实施例中，所述偏光层23在所述衬底211上的正投影与所述第一保护部221在所述衬底211上的正投影不交叠，所述第一保护部221靠近所述第一阻挡部213A的一侧与所述第一阻挡部213A靠近所述第一保护部221的一侧抵接。
具体地，所述第一阻挡部213A的厚度大于或等于1微米，且小于或等于5微米，所述保护层22的厚度大于0，且小于或等于10微米，所述保护层22的弹性模量大于或等于500兆帕，所述保护层22的断裂伸长量大于或等于125%，所述保护层22可以采用喷墨打印工艺形成，由于工艺原因，所述第一保护层22截止打印的一端(即所述第一保护部221靠近所述第一阻挡部213A的一侧)的厚度逐渐减薄，而所述保护层22为未发生流平的部分（所述弯折保护部222），其在各个位置处的厚度相等。
需要说明的是，请结合图1，在相关技术中，为了实现显示模组的窄边框轻薄化，需要减小所述弯折部112的弯折半径，则保护层13在弯折起始点处的应力增大，保护层13与对应于显示面板11平坦区的膜层结构（比如，偏光层14）边界之间的剥离风险增大，从而导致保护层13在弯折时容易发生死折，造成线路断裂，影响显示面板的品质。
可以理解的是，相对于现有技术中采用涂布的方式形成保护层，本实施例可以采用喷墨打印形成所述保护层，喷墨打印工艺可以改善所述保护层的均一性并有效减小所述保护层的厚度，从而缩短了所述保护层所需的流平距离，因此相对于图1所示的显示模组中采用偏光层作为保护层的挡墙，本实施例所提供的设计在贴合所述偏光层之前，可以设置所述第一保护部靠近所述第一阻挡部的一侧与所述第一阻挡部靠近所述第一保护部的一侧抵接，即所述第一阻挡部作为挡墙，从而使所述偏光层在所述衬底上的正投影与所述第一保护部在所述衬底上的正投影不交叠，避免所述偏光层与所述保护层相互挤压，产生额外应力，引起所述保护层脱落或显示异常等问题。
在一些实施例中，如图2所示，所述平面区100包括第一子区110和第二子区120，所述第二子区120位于所述第一子区110和所述弯折区200之间；所述显示面板本体21包括至少一层第一无机层215，所述第一无机层215位于所述第一子区110内，所述第一阻挡部213A由所述第一子区110向靠近所述第二子区120的方向延伸；其中，所述第一阻挡部213A位于所述第一子区110内，且未延伸至所述第二子区120，所述显示面板2的俯视角下，所述第一阻挡部213A靠近所述第二子区120的一端与所述第一无机层215靠近所述第二子区120的一端之间的间距大于等于0，且小于或等于50微米。
具体地，所述第一保护部221由所述第二平面区100向靠近所述第一平面区100的方向延伸，所述第一阻挡部213A靠近所述第二子区120的一端与所述第一无机层215靠近所述第二子区120的一端之间具有第一间距（图中未标记），所述第一间距大于等于0，且小于或等于50微米；在所述第一保护部221指向所述第一阻挡部213A的方向上，所述第二平面区100具有第一长度L1，其中，所述第一长度L1可以根据实际生产进行选择，本实施例对此不做限制。
例如图2所示，所述第一间距等于0，所述第一保护部221的长度等于所述第二平面区100的第一长度L1；可以理解的是，所述第一保护部221的长度可以作为所述保护层22采用喷墨打印工艺制备时所需要的流平距离，在实际生产过程中，不同厚度的所述保护层22，其所需要的流平距离是不同的，当所述保护层22的所需流平距离大于所述第一宽度时，本实施例通过设置所述第一阻挡部213A位于所述第一子区110内，且未延伸至所述第二子区120，控制所述第一间距的大小，从而延长所述保护层22的流平距离，进而使所述阻挡层213可适用于流平距离不同的所述保护层22，即，在本实施例中所述保护层22的流平距离等于所述第一间距和所述第一长度L1之和；同时，延长所述保护层22的流平距离，可以提升所述保护层22厚度的均一性，避免现有技术中，由于涂胶设备和工艺的限制，容易出现保护层22的涂布精度差，而导致出现气泡、缺胶以及胶层均一性差等问题。
在一些实施例中，所述显示面板本体21还包括层叠设置于所述衬底211上的缓冲层216、像素定义层217、平坦层218以及有机光阻层219，所述缓冲层216设于所述衬底211与所述第一无机层215之间，所述平坦层218设置于所述第一无机层215和所述像素定义层217之间，所述平坦层218包括层叠设置的第一平坦层2181、第二平坦层2182以及第三平坦层2183，所述像素定义层217设于所述平坦层218和所述封装层212之间，所述有机光阻层219设于所述像素定义层217远离所述衬底211的一侧；其中，在所述弯折区200内，所述保护层22设置于所述有机光阻层219远离所述像素定义层217的一侧。
请结合图2和图4；其中，图4为本申请实施例所提供的显示面板处于展开状态时的第二种局部结构示意图；其中，所述显示面板的结构与上述实施例所提供的显示面板的结构相似/相同，具体请参照上述实施例中的显示面板的描述。
在一些实施例中，所述平面区100包括第一子区110和第二子区120，所述第二子区120位于所述第一子区110和所述弯折区200之间；所述显示面板本体21包括第一无机层215，所述第一无机层215位于所述第一子区110内，所述第一阻挡部213A由所述第一子区110向靠近所述第二子区120的方向延伸；其中，至少部分所述第一阻挡部213A位于所述第二子区120内，且所述显示面板2的俯视角下，所述第一阻挡部213A远离所述第一子区110的一端与所述第一无机层215靠近所述第二子区120的一端之间的间距大于等于0，且小于或等于20微米。
具体地，所述第一保护部221由所述第二平面区100向靠近所述第一平面区100的方向延伸，所述第一阻挡部213A远离所述第一子区110的一端与所述第一无机层215靠近所述第二子区120的一端之间具有第二间距L2，所述第二间距大于等于0，且小于或等于20微米；在所述第一保护部221指向所述第一阻挡部213A的方向上，所述第二平面区100具有第一长度L1，其中，所述第一长度L1可以根据实际情况进行选择，本实施例对此不做限制。
例如图5所示，所述第一保护部221的长度小于所述第二平面区100的第一长度L1；可以理解的是，所述第一保护部221的长度可以作为所述保护层22采用喷墨打印工艺制备时所需要的流平距离，当所述保护层22所需要的流平距离较小时，可以设置至少部分所述第一阻挡部213A位于所述第二子区120内，通过控制所述第二间距L2的大小，进而使所述阻挡层213可适用于流平距离不同的所述保护层22，即，在本实施例中所述保护层22的流平距离等于所述第一长度L1与所述第二间距L2之差，使所述第一保护部221靠近所述第一阻挡部213A的一侧与所述第一阻挡部213A靠近所述第一保护部221的一侧抵接，满足窄边框的要求。
请参阅图5，为本申请实施例所提供的显示面板处于展开状态时的第三种局部结构示意图；其中，所述显示面板的结构与上述实施例所提供的显示面板的结构相似/相同，具体请参照上述实施例中的显示面板的描述。
在一些实施例中，所述保护层22的厚度大于10微米，且小于或等于20微米；在所述平面区100内，所述第一保护部221在所述衬底211上的正投影至少与部分所述第一阻挡部213A在所述衬底211上的正投影重叠；其中，所述第一阻挡部213A开设有多个开槽2131A，多个所述开槽2131A由所述平面区100向靠近所述弯折区200的方向依次排列，所述第一保护部221至少填充部分所述开槽2131A，从而可以进一步延长所述保护层22的流平距离，提升所述保护层22的弯折保护部222厚度的均一性；并且，多个所述开槽2131A可以起到更加可靠的止挡作用，有效避免所述第一保护部221通过所述第一阻挡部213A出现溢流的情况，从而增强所述第一阻挡部213A的阻挡能力。
在一些实施例中，在所述第一阻挡部213A远离所述第一保护部221的方向上，任意两所述开槽2131A中，其中一远离所述第一保护部221的所述开槽2131A的深度小于另一靠近所述第一保护部221的所述开槽2131A的深度。
在一些实施例中，所述开槽2131A的数量大于或等于1，且小于或等于10；所述开槽2131A的宽度大于或等于10微米，且小于或等于40微米；相邻两所述开槽2131A的间距大于或等10微米，且小于或等于50微米。
可以理解的是，本实施例通过控制相邻两所述开槽2131A的间距，从而对所述保护层22的流平距离进行调节；通过控制所述开槽2131A的深度、宽度以及数量，可以起到提升所述第一阻挡部213A的止挡作用的效果，有效避免所述第一保护部221通过所述第一阻挡部213A出现溢流的情况；需要说明的是，本实施例对所述开槽2131A的数量、深度、宽度以及间距均不做具体限制。
请结合图2和图6；其中，图6为本申请实施例所提供的显示面板处于弯折状态时的第二种局部结构示意图；其中，所述显示面板的结构与上述实施例所提供的显示面板的结构相似/相同，具体请参照上述实施例中的显示面板的描述。
在一些实施例中，所述显示面板2还包括保护胶27，所述保护胶27设于所述保护层22远离所述显示面板本体21的一侧，所述保护胶27由所述平面区100向靠近所述绑定区300的方向伸延，且所述保护胶27的一端与所述偏光层23抵接；其中，所述保护胶27在所述衬底211上的正投影与所述第一保护部221在所述衬底211上的正投影至少部分重叠，且所述保护胶27在所述衬底211上的正投影覆盖所述弯折保护部222在所述衬底211上的正投影。
具体地，所述保护胶27包括第一保护子胶271、第二保护子胶272以及第三保护子胶273，所述第二保护子胶272，所述第一保护子胶271位于所述平面区100内，所述第二保护子胶272位于所述弯折区200内，所述第三保护子胶273位于所述绑定区300内；其中，所述第一保护子胶271覆盖所述第一保护部221，所述第二保护子胶272覆盖所述弯折保护部222，所述第三保护子胶273覆盖所述第二保护部223，所述保护层22可作为所述保护胶27的基层。
需要说明的是，所述显示面板2包括叠层设置的多个膜层，所述显示面板2弯折时，在所述弯折区200内，叠层设置的多个膜层内部会形成中性面，该中性面所受的拉应力和压应力相互平衡，为应力分布的中性面；在所述弯折区200内，中性面一般位于所述衬底211的内部，所述显示面板本体21内的金属走线（例如源漏电极层214）位于中性面的外侧，会受到较大的拉应力，通过设置所述保护层22在所述衬底211上的正投影覆盖所述金属走线在所述衬底211上的正投影，从而缓解和释放掉所述显示面板本体21在弯折过程中产生的应力，进而减小所述金属走线在所述显示面板2弯折时受到的作用力。
承上，所述弯折保护部222位于所述弯折区200内，且所述弯折保护部222位于所述弯折区200的显示面板2的最外侧表面，此时，所述弯折保护部222会受到较大的拉应力，当所述保护层22的厚度较薄，例如图2所示显示面板中，所述保护层22的厚度大于0，且小于或等于10微米，所述保护层22可能无法较好的保护所述金属走线。
可以理解的是，本实施例通过设置所述保护胶27覆盖所述保护层22，且所述保护胶27在所述衬底211上的正投影覆盖所述弯折保护部222在所述衬底211上的正投影，从而可以对所述弯折区200内中性面的位置进行调整，例如，将中性面的位置调整至所述金属走线远离所述衬底211的一侧，当中性面位于与所述金属走线相距更近的位置时，所述金属走线所受拉应力减小，因而可以降低所述金属走线在拉应力作用下断裂的风险。
并且，相对于图1所示的显示模组中所述保护层的均一性较差，且厚度较大，本实施例通过将所述保护层22作为所述保护胶27的基层，通过延长所述保护层22的流平距离，可以提升所述保护层22厚度的均一性，使得所述保护层22的表面平整，从而可以保证所述保护胶27的的均一性并有效减小所述保护胶27的厚度，以避免现有技术中的所述保护层出现气泡、缺胶以及胶层均一性差等问题。
请参阅图7，为本申请实施例所提供的显示面板处于展开状态时的第四种局部结构示意图；其中，所述显示面板的结构与上述实施例所提供的显示面板的结构相似/相同，具体请参照上述实施例中的显示面板的描述。
在一些实施例中，所述保护层22的厚度大于20微米，且小于或等于40微米；所述平坦层218开设有第一凹槽218A，所述偏光层23在所述衬底211上的正投影覆盖所述第一凹槽218A在所述衬底211上的正投影；所述封装层212包括第一凹部212A，所述第一凹部212A覆盖所述第一凹槽218A，所述第一阻挡部213A包括第二凹部213A1，所述第二凹部213A1覆盖所述第一凹部212A；其中，所述偏光层23在所述衬底211上的正投影与所述第一保护部221在所述衬底211上的正投影部分重叠，所述第一保护部221远离所述弯折保护部222的一侧与所述第二凹部213A1的内壁抵接。
在一些实施例中，所述显示面板本体21还包括层叠设置于所述衬底211上的发光层2120和像素定义层217，所述像素定义层217设于所述平坦层218和所述封装层212之间，所述像素定义层217开设有开口，所述发光层2120设于所述开口217A内；其中，所述第一无机层215设于所述发光层2120和所述衬底211之间。
具体地，所述平坦层218包括层叠设置于所述第一无机层215上的第一平坦层2181、第二平坦层2182以及第三平坦层2183，所述第三平坦层2183开设有所述第一凹槽218A，所述第一凹槽218A暴露部分所述第一无机层215；所述封装层212至少包括层叠设置的第一无机封装层2121和第二无机封装层2122，所述第二无机封装层2122设于所述第一无机封装层2121远离所述衬底211的一侧；其中，所述第一无机封装层2121覆盖所述第一凹槽218A，所述第二无机封装层2122覆盖所述第一无机封装层2121，且所述第一无机封装层2121和所述第二无机封装层2122覆盖所述第一凹槽218A的部分形成所述第一凹部212A，所述第一无机封装层2121通过所述第一凹槽218A与所述第一无机层215接触；所述阻挡层213覆盖所述第一凹部212A，从而形成第二凹部213A1，所述第二凹部213A1覆盖所述第一凹部212A，所述第一保护部221由所述第二子区120向靠近所述第一子区110的方向延伸，且所述第一保护部221远离所述弯折保护部222的一侧与所述第二凹部213A1的内壁抵接。
可以理解的是，本实施例通过设置所述偏光层23在所述衬底211上的正投影与所述第一保护部221在所述衬底211上的正投影部分重叠，从而避免所述偏光层23与所述保护层22相互挤压，产生额外应力，引起所述保护层22脱落或显示异常等问题；通过设置所述第一保护部221远离所述弯折保护部222的一侧与所述第二凹部213A1的内壁抵接，所述第二凹部213A1起到阻挡所述第一保护部221溢流的屏障作用。
同时，相对于现有技术中通过所述偏光层23作为所述保护层22的挡墙，本实施例通过设置所述第一保护部221由所述第二子区120向靠近所述第一子区110的方向延伸，且所述第一保护部221远离所述弯折保护部222的一侧与所述第二凹部213A1的内壁抵接，从而延长所述保护层22的流平距离，可以提升所述保护层22厚度的均一性，避免现有技术中，由于涂胶设备和工艺的限制，容易出现保护层22的涂布精度差，而导致出现气泡、缺胶以及胶层均一性差等问题。
在一些实施例中，所述显示面板2还包括触控层220，所述触控层220设于所述平面区100内，所述触控层220包括层叠设置的第二无机层2201、第一触控金属层2202、第三无机层2203、第二触控金属层2204以及有机层2205，所述第二无机层2201设于所述封装层212远离所述衬底211的一侧；所述第一触控金属层2202设于所述第二无机层2201远离所述封装层212的一侧；所述第五无机层设于所述第一触控金属层2202远离所述第二无机层2201的一侧；所述第二触控金属层2204设于所述第三无机层2203远离所述第一触控金属层2202的一侧；所述有机层2205设于所述第二触控金属层2204远离所述第三无机层2203的一侧；其中，所述有机层2205包括所述阻挡层213。
具体地，需要说明的是，本实施例以所述触控层220采用外挂式(on-cell)结构集成在所述显示面板2中为例对本申请的技术方案进行举例说明；具体地，所述显示面板2可为外挂式(on-cell)触控面板，即将触控层220嵌入到显示面板2的封装层212和偏光层23之间形成的显示面板2；本实施例通过设置所述触控层220包括层叠设置的第二无机层2201、第一触控金属层2202、第五无机层、第二触控金属层2204以及有机层2205，所述有机层2205包括所述阻挡层213，从而无需额外在显示面板2中设置阻挡层213，既降低了产品成本，又节省了工序。
具体地，在一些实施例中，在对比例1、实施例1和实施例2中的所述保护层的材料、厚度以及弹性模量均不同；具体请参照下表1。
条件 对比例1 实施例1 实施例2
材料 UV lnk1 lnk2
厚度（um） 60 30 24
弹性模量（Mpa） 504 1350 1880
表1
对比例1所提供的显示面板如图1所示，其中，所述保护层13的材料为UV材料；实施例1所提供的显示面板如图7所示，其中，所述保护层22的材料为lnk1材料；实施例2所提供的显示面板如图7所示，其中，所述保护层22的材料为lnk2材料；需要说明的是，本实施例对实施例1所提供的lnk1材料、实施例2所提供的lnk2材料以及对比例1所提供的UV材料均不做具体限制。
在维持所述保护层的弯折保护部受到1500Mpa压力的条件下，分别对上述对比例1、实施例1和实施例2所提供的保护层的最外侧受力和保护层最外则变形、以及对应显示面板的模组反弹力进行性能测试；测试的数据如图8a~图8c所示。
由图8a~图8c可知，当所述保护层的厚度降低后，可以通过调整所述保护层的弹性模量，从而维持所述显示面板弯折后其内部线路受力不变，以达到保护线路的作用。
请参阅图9，为本申请实施例所提供的显示面板处于展开状态时的第五种局部结构示意图；其中，所述显示面板的结构与上述实施例所提供的显示面板的结构相似/相同，具体请参照上述实施例中的显示面板的描述。
在一些实施例中，所述第一阻挡部213A开设有多个开槽2131A，多个所述开槽2131A位于所述第二凹部213A1内，且多个所述开槽2131A由所述平面区100向靠近所述弯折区200的方向依次排列；其中，所述第一保护部221至少填充部分所述开槽2131A，所述开槽2131A的深度小于或等于所述阻挡层213的厚度，从而可以进一步延长所述保护层22的流平距离，提升所述保护层22的弯折保护部222厚度的均一性；并且，多个所述开槽2131A可以起到更加可靠的止挡作用，有效避免所述第一保护部221通过所述第一阻挡部213A出现溢流的情况，从而增强所述第一阻挡部213A的阻挡能力。
在一些实施例中，在所述第一阻挡部213A远离所述第一保护部221的方向上，任意两所述开槽2131A中，其中一远离所述第一保护部221的所述开槽2131A的深度小于另一靠近所述第一保护部221的所述开槽2131A的深度。
在一些实施例中，所述开槽2131A的数量大于或等于1，且小于或等于10；所述开槽2131A的宽度大于或等于10微米，且小于或等于40微米；相邻两所述开槽2131A的间距大于或等于10微米，且小于或等于50微米。
可以理解的是，本实施例通过控制相邻两所述开槽2131A的间距，从而对所述保护层22的流平距离进行调节；通过控制所述开槽2131A的深度、宽度以及数量，可以起到提升所述第一阻挡部213A的止挡作用的效果，有效避免所述第一保护部221通过所述第一阻挡部213A出现溢流的情况；需要说明的是，本实施例对所述开槽2131A的数量、深度、宽度以及间距均不做具体限制。
请参阅图10，为本申请实施例所提供的移动终端的结构示意图。
本实施例提供一种移动终端3，所述移动终端3包括终端主体3A和上述任一实施例中所述的显示面板2，所述终端主体3A与所述显示面板2组合为一体。
可以理解的是，所述终端主体3A包括但不限于框体，所述显示面板2已经在上述实施例中进行了详细的说明，在此不在重复说明。
在具体应用时，所述移动终端3可以为智能手机、平板电脑、笔记本电脑、智能手环、智能手表、智能眼镜、智能头盔、台式机电脑、智能电视或者数码相机等设备的显示屏，甚至可以应用在具有柔性显示屏的电子设备上。
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. 一种显示面板，其中，包括平面区、弯折区以及绑定区，所述弯折区位于所述平面区以及所述绑定区之间，所述显示面板包括：
    显示面板本体，包括衬底、以及层叠设于所述衬底上的封装层和阻挡层，所述阻挡层设于所述封装层远离所述衬底的一侧，所述阻挡层包括第一阻挡部，所述第一阻挡部位于所述平面区内；
    保护层，所述保护层包括连续设置的第一保护部、弯折保护部和第二保护部，所述第一保护部位于所述平面区内，所述弯折保护部位于所述弯折区内，且所述弯折保护部位于所述弯折区的显示面板的最外侧表面，所述第二保护部位于所述绑定区内；以及
    偏光层，设于所述阻挡层远离所述封装层的一侧，所述偏光层位于所述平面区内，所述偏光层在所述衬底上的正投影至少与部分所述第一阻挡部在所述衬底上的正投影不交叠；
    其中，所述第一保护部远离所述弯折保护部的一侧至少与部分所述第一阻挡部抵接。
  2. 根据权利要求1所述的显示面板，其中，所述偏光层在所述衬底上的正投影与所述第一保护部在所述衬底上的正投影不交叠，所述第一保护部靠近所述第一阻挡部的一侧与所述第一阻挡部靠近所述第一保护部的一侧抵接。
  3. 根据权利要求2所述的显示面板，其中，所述保护层的厚度大于0，且小于或等于10微米；所述第一阻挡部的厚度大于或等于1微米，且小于或等于5微米。
  4. 根据权利要求2所述的显示面板，其中，所述平面区包括第一子区和第二子区，所述第二子区位于所述第一子区和所述弯折区之间；
    所述显示面板本体包括至少一层第一无机层，所述第一无机层位于所述第一子区内，所述第一阻挡部由所述第一子区向靠近所述第二子区的方向延伸；
    其中，至少部分所述第一阻挡部位于所述第二子区内，且在所述显示面板的俯视角下，所述第一阻挡部远离所述第一子区的一端与所述第一无机层靠近所述第二子区的一端之间的间距大于等于0，且小于或等于20微米。
  5. 根据权利要求2所述的显示面板，其中，所述平面区包括第一子区和第二子区，所述第二子区位于所述第一子区和所述弯折区之间；
    所述显示面板本体包括第一无机层，所述第一无机层位于所述第一子区内，所述第一阻挡部由所述第一子区向靠近所述第二子区的方向延伸；
    其中，所述第一阻挡部位于所述第一子区内，且未延伸至所述第二子区，在所述显示面板的俯视角下，所述第一阻挡部靠近所述第二子区的一端与所述第一无机层靠近所述第二子区的一端之间的间距大于等于0，且小于或等于50微米。
  6. 根据权利要求1所述的显示面板，其中，在所述平面区内，所述第一保护部在所述衬底上的正投影至少与部分所述第一阻挡部在所述衬底上的正投影重叠；
    其中，所述第一阻挡部开设有多个开槽，多个所述开槽由所述平面区向靠近所述弯折区的方向依次排列，所述第一保护部至少填充部分所述开槽。
  7. 根据权利要求6所述的显示面板，其中，所述保护层的厚度大于10微米，且小于或等于20微米。
  8. 根据权利要求6所述的显示面板，其中，在所述第一阻挡部远离所述第一保护部的方向上，任意两所述开槽中，其中一远离所述第一保护部的所述开槽的深度小于另一靠近所述第一保护部的所述开槽的深度。
  9. 根据权利要求8所述的显示面板，其中，所述开槽的宽度大于或等于10微米，且小于或等于40微米；相邻两所述开槽的间距大于等于10微米，且小于或等于50微米。
  10. 根据权利要求1所述的显示面板，其中，所述显示面板本体包括设于所述封装层和所述衬底之间的平坦层，所述平坦层开设有第一凹槽，所述偏光层在所述衬底上的正投影覆盖所述第一凹槽在所述衬底上的正投影；
    所述封装层包括第一凹部，所述第一凹部覆盖所述第一凹槽，所述第一阻挡部包括第二凹部，所述第二凹部覆盖所述第一凹部；
    其中，所述偏光层在所述衬底上的正投影与所述第一保护部在所述衬底上的正投影部分重叠，所述第一保护部远离所述弯折保护部的一侧与所述第二凹部的内壁抵接。
  11. 根据权利要求10所述的显示面板，其中，所述封装层包括第一无机封装层和第二无机封装层，所述第二无机封装层设于所述第一无机封装层远离所述衬底的一侧；
    其中，所述第一无机封装层覆盖所述第一凹槽，所述第二无机封装层覆盖所述第一无机封装层，且所述第一无机封装层和所述第二无机封装层覆盖所述第一凹槽的部分形成所述第一凹部。
  12. 根据权利要求10所述的显示面板，其中，所述显示面板还包括触控层，所述触控层设于所述平面区内，所述触控层包括：
    第二无机层，设于所述封装层远离所述衬底的一侧；
    第一触控金属层，设于所述第二无机层远离所述封装层的一侧；
    第三无机层，设于所述第一触控金属层远离所述第二无机层的一侧；
    第二触控金属层，设于所述第三无机层远离所述第一触控金属层的一侧；
    有机层，设于所述第二触控金属层远离所述第三无机层的一侧；
    其中，所述有机层包括所述阻挡层。
  13. 根据权利要求10所述的显示面板，其中，所述保护层的厚度大于20微米，且小于或等于40微米。
  14. 根据权利要求10所述的显示面板，其中，所述第一阻挡部开设有多个开槽，多个所述开槽位于所述第二凹部内，且多个所述开槽由所述平面区向靠近所述弯折区的方向依次排列；其中，所述第一保护部至少填充部分所述开槽。
  15. 根据权利要求14所述的显示面板，其中，所述开槽的宽度大于或等于10微米，且小于或等于40微米；相邻两所述开槽的间距大于或等于10微米，且小于或等于50微米。
  16. 根据权利要求1所述的显示面板，其中，所述显示面板还包括保护胶，所述保护胶设于所述保护层远离所述显示面板本体的一侧，所述保护胶由所述平面区向靠近所述绑定区的方向伸延，且所述保护胶的一端与所述偏光层抵接；
    其中，所述保护胶在所述衬底上的正投影与所述第一保护部在所述衬底上的正投影至少部分重叠，且所述保护胶在所述衬底上的正投影覆盖所述弯折保护部在所述衬底上的正投影。
  17. 一种移动终端，其中，所述移动终端包括终端主体和显示面板，所述终端主体与所述显示面板组合为一体，所述显示面板包括平面区、弯折区以及绑定区，所述弯折区位于所述平面区以及所述绑定区之间，所述显示面板包括：
    显示面板本体，包括衬底、以及层叠设于所述衬底上的封装层和阻挡层，所述阻挡层设于所述封装层远离所述衬底的一侧，所述阻挡层包括第一阻挡部，所述第一阻挡部位于所述平面区内；
    保护层，所述保护层包括连续设置的第一保护部、弯折保护部和第二保护部，所述第一保护部位于所述平面区内，所述弯折保护部位于所述弯折区内，且所述弯折保护部位于所述弯折区的显示面板的最外侧表面，所述第二保护部位于所述绑定区内；以及
    偏光层，设于所述阻挡层远离所述封装层的一侧，所述偏光层位于所述平面区内，所述偏光层在所述衬底上的正投影至少与部分所述第一阻挡部在所述衬底上的正投影不交叠；
    其中，所述第一保护部远离所述弯折保护部的一侧至少与部分所述第一阻挡部抵接。
  18. 根据权利要求17所述的移动终端，其中，所述偏光层在所述衬底上的正投影与所述第一保护部在所述衬底上的正投影不交叠，所述第一保护部靠近所述第一阻挡部的一侧与所述第一阻挡部靠近所述第一保护部的一侧抵接。
  19. 根据权利要求18所述的移动终端，所述保护层的厚度大于0，且小于或等于10微米；所述第一阻挡部的厚度大于或等于1微米，且小于或等于5微米。
  20. 根据权利要求18所述的移动终端，其中，所述平面区包括第一子区和第二子区，所述第二子区位于所述第一子区和所述弯折区之间；
    所述显示面板本体包括至少一层第一无机层，所述第一无机层位于所述第一子区内，所述第一阻挡部由所述第一子区向靠近所述第二子区的方向延伸；
    其中，至少部分所述第一阻挡部位于所述第二子区内，且在所述显示面板的俯视角下，所述第一阻挡部远离所述第一子区的一端与所述第一无机层靠近所述第二子区的一端之间的间距大于等于0，且小于或等于20微米。
PCT/CN2024/099331 2024-03-13 2024-06-14 显示面板及移动终端 Pending WO2025189591A1 (zh)

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CN117292623A (zh) * 2023-10-09 2023-12-26 厦门天马显示科技有限公司 显示模组及显示装置
CN117456830A (zh) * 2023-06-06 2024-01-26 武汉华星光电半导体显示技术有限公司 显示模组及移动终端
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CN117456830A (zh) * 2023-06-06 2024-01-26 武汉华星光电半导体显示技术有限公司 显示模组及移动终端
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