WO2023108726A1 - 显示面板及移动终端 - Google Patents

显示面板及移动终端 Download PDF

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Publication number
WO2023108726A1
WO2023108726A1 PCT/CN2021/140146 CN2021140146W WO2023108726A1 WO 2023108726 A1 WO2023108726 A1 WO 2023108726A1 CN 2021140146 W CN2021140146 W CN 2021140146W WO 2023108726 A1 WO2023108726 A1 WO 2023108726A1
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WO
WIPO (PCT)
Prior art keywords
groove
display panel
refractive index
layer
touch
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Application number
PCT/CN2021/140146
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English (en)
French (fr)
Inventor
姚佳序
Original Assignee
武汉华星光电半导体显示技术有限公司
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Application filed by 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Publication of WO2023108726A1 publication Critical patent/WO2023108726A1/zh

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means

Definitions

  • the present application relates to the field of display technology, in particular to a display panel and a mobile terminal.
  • MLP Merge Pattern, microarray
  • the microarray pattern in MLP technology usually requires an inkjet printing process to prepare and make it flat to facilitate subsequent processes.
  • the inkjet printing process needs to set slits around the screen in advance to block the flow of ink and limit the coverage of ink.
  • the touch wiring is adjacent to the MLP film layer, and there is an overlapping area between the touch wiring and the slit, when the slit is etched, over-etching is likely to occur, which will expose the touch wiring and cause touch failure. technical problems.
  • the present application provides a display panel and a mobile terminal to solve the technical problem that the touch wiring in the existing display panel is prone to touch failure.
  • the present application provides a display panel, the display panel includes a display area and a non-display area located on at least one side of the display area; the display panel further includes:
  • the light-emitting layer disposed on one side of the substrate, the light-emitting layer including a plurality of light-emitting pixels disposed in the display area;
  • the touch layer is arranged on the side of the light-emitting layer away from the substrate, the touch layer includes touch electrodes arranged in the display area and touch traces electrically connected to the touch electrodes, the touch traces a line extending from the display area to the non-display area;
  • the first refractive index layer is disposed on a side of the touch layer away from the substrate, and the first refractive index layer includes a plurality of first openings distributed in the display area corresponding to the light-emitting pixels;
  • the second refractive index layer is arranged on the side of the first refractive index layer away from the substrate, and fills a plurality of the first openings, the refractive index of the second refractive index layer is greater than the first refractive index the refractive index of the layer;
  • the first refractive index layer further includes a plurality of blocking grooves distributed in the non-display area and extending along the first direction, and the plurality of blocking grooves include first-type grooves and second-type grooves,
  • the first type of groove covers the touch wiring
  • the second type of groove includes at least one sub-groove that does not overlap with the touch wiring.
  • the display panel also includes:
  • the driving circuit layer is arranged between the substrate and the light-emitting layer, and the driving circuit layer includes a plurality of driving circuits electrically connected to the corresponding light-emitting pixels and driving wirings electrically connected to the driving circuits.
  • the wiring extends from the display area to the non-display area;
  • the non-display area includes a bending area and a wire-changing area arranged between the bending area and the display area, and the touch wires and the driving wires pass through via holes in the wire-changing area electrical connection;
  • a wire changing area is arranged between adjacent sub-grooves.
  • the position where the first type of groove overlaps with the touch trace is filled with a covering portion.
  • the covering part includes a plurality of covering subparts covering at least one of the touch traces.
  • At least one of the barrier grooves is provided with a plurality of barrier groups arranged along the second direction, and each of the barrier groups includes a plurality of barrier bodies arranged along the first direction;
  • the barriers in two adjacent barrier groups are arranged staggered, and the included angle between the first direction and the second direction ranges from 0° to 90°.
  • the shape of the barrier is at least one of square, rhombus or circle.
  • the center-to-center distance between two adjacent barriers is 6 microns to 9 microns;
  • the diagonal length of the barrier is 8 microns to 12 microns.
  • the size of each of the barrier grooves is equal, and the distance between two adjacent barrier grooves is equal.
  • each barrier groove in the second direction, is 40 microns, and the distance between two adjacent barrier grooves is 40 microns.
  • the size of each of the barrier grooves is larger than the size of the first opening.
  • the first type of groove includes a first groove and a second groove
  • the second type of groove includes two separate sub-grooves, the first The second groove is located between the first groove and the sub-groove, the sub-groove is located on the side of the second groove away from the display area, and the first groove is located in the second groove a side close to the display area;
  • the boundary of the second refractive index layer is between the first opening and the first groove
  • the boundary of the second refractive index layer is between the first groove and the second groove;
  • the boundary of the second refractive index layer is between the sub-groove and the second groove.
  • the size of each of the sub-grooves is 1000 microns to 2000 microns.
  • the first groove or/or the second groove includes a first barrier segment and a second barrier segment, and the first barrier segment and the second barrier segment are vertically arranged, so The extension direction of the first barrier section is parallel to the first direction;
  • the distance between the second barrier segment and the sub-groove is 1000 microns to 2000 microns.
  • the first type of groove is arranged between the display area and the bending area;
  • both ends of the first type of groove extend to the border of the display panel and are in contact with the border of the display panel.
  • the present application also proposes a mobile terminal, wherein the mobile terminal includes a terminal body and the above-mentioned display panel, and the terminal body and the display panel are combined into one.
  • At least one sub-groove that does not overlap with the touch wiring is provided on the side away from the display area, which reduces the overlapping area of the barrier groove and the touch trace, and improves the damage caused by the over-etching of the barrier groove.
  • FIG. 1 is a first top view structural diagram of an existing display panel
  • Fig. 2 is a second top view structure diagram of an existing display panel
  • FIG. 3 is a third top view structure diagram of an existing display panel
  • Fig. 4 is a first top view structure diagram of the display panel of the present application.
  • FIG. 5 is a first cross-sectional structure diagram of the display panel of the present application.
  • Fig. 6 is a film structure diagram of the display panel of the present application.
  • Figure 7 is an enlarged view of the barrier groove in the display panel of the present application.
  • FIG. 8 is a second cross-sectional structure diagram of the display panel of the present application.
  • Figure 9 is a third cross-sectional structure diagram of the display panel of the present application.
  • Fig. 10 is the first enlarged view of area AA in Fig. 4;
  • FIG. 11 is a second enlarged view of the area AA in FIG. 4 .
  • the square structure in Figure 1 is the structure of the display panel before cutting
  • the solid line outside the square structure is the first cutting line GG
  • the dotted line inside the square structure in Figure 1 is the second cutting line DD
  • the first cutting line GG is the cutting line for cutting the motherboard into the square structure
  • the second cutting line DD is the target shape of the display panel to be cut.
  • the microarray pattern in MLP technology usually requires an inkjet printing process to prepare, and the irregular solid line in the square structure in Fig. 2 is the irregular boundary YM of the ink.
  • a plurality of blocking grooves 62 are usually arranged around the periphery of the display panel at present, but because the structure of the lower boundary is different from that of the other three boundaries, the current blocking structure may be different from that of the vertically arranged touch screen.
  • the traces are overlapped, and when the isolation groove 62 is etched, the technical problem of over-etching is likely to expose the touch trace and cause touch failure. Therefore, the present application proposes a display panel to solve the above technical problem.
  • the present application provides a display panel 100 , wherein the display panel 100 includes a display area 200 and a non-display area 300 located on at least one side of the display area 200 .
  • the display panel 100 may further include a substrate 10 , a light emitting layer 30 , a touch layer 50 , a first refractive index layer 60 and a second refractive index layer 70 .
  • the light emitting layer 30 is disposed on one side of the substrate 10, the light emitting layer 30 includes a plurality of light emitting pixels disposed in the display area 200; the first refractive index layer 60 is disposed On one side of the light-emitting layer 30, the first refractive index layer 60 includes a plurality of first openings 61 distributed in the display area 200 corresponding to the light-emitting pixels; the second refractive index layer 70 It is arranged on the side of the first refractive index layer 60 away from the substrate 10 and fills a plurality of the first openings 61, and the refractive index of the second refractive index layer 70 is greater than that of the first refractive index layer 60 the refractive index.
  • the touch layer 50 is arranged on the side of the luminescent layer 30 away from the substrate 10 , and the touch layer 50 includes touch electrodes arranged in the display area 200 and electrodes connected to the touch electrodes.
  • the connected touch wires 51 extend from the display area 200 to the non-display area 300 .
  • the first refractive index layer 60 further includes a plurality of blocking grooves 62 distributed in the non-display area 300 and extending along the first direction X, and the plurality of blocking grooves 62 include the first type Groove D1 and a second type of groove D2, the first type of groove D1 covers the touch wiring 51, and the second type of groove D2 includes at least one groove that does not overlap with the touch wiring 51 A sub-groove 623 is provided.
  • At least one sub-groove 623 that does not overlap with the touch wiring 51 is provided on the side away from the display area 200, which reduces the overlapping area of the isolation groove 62 and the touch wiring 51, and improves the The over-etching of 62 leads to the technical problem of failure of the touch trace 51.
  • the display panel 100 may include a display area 200 and a non-display area 300 located on at least one side of the display area 200 .
  • the non-display area 300 may be the lower frame area of the display panel 100 .
  • the display panel 100 may include a driving circuit layer 20 disposed on the substrate 10 , a pixel definition layer 80 disposed on the driving circuit layer 20 , and the pixel definition layer 80
  • the light-emitting layer 30 disposed on the same layer, the encapsulation layer 40 disposed on the pixel definition layer 80 , the touch layer 50 disposed on the encapsulation layer 40 , the touch layer 50 disposed on the touch layer 50
  • the first refractive index layer 60 and the second refractive index layer 70 disposed on the first refractive index layer 60 .
  • the material of the substrate 10 may be glass, quartz or polyimide and other materials.
  • the driving circuit layer 20 may include a plurality of thin film transistors 21, and the thin film transistors 21 may be of the etching barrier type, the back channel etching type, or according to the gate and active layer
  • the location of the structure is divided into bottom-gate thin film transistors, top-gate thin film transistors and other structures, which are not specifically limited.
  • the thin film transistor 21 shown in FIG. 6 is a top-gate thin film transistor, and the thin film transistor 21 may include a light shielding layer 211 disposed on the substrate 10, a buffer layer 212 disposed on the light shielding layer 211, and a buffer layer 212 disposed on the light shielding layer 211.
  • the display panel 100 may further include an anode layer 31 disposed on the planar layer 218 , a light emitting layer 30 disposed on the anode layer 31 , and a Cathode layer 32 on light emitting layer 30 .
  • the anode layer 31 includes a plurality of anodes 311
  • the pixel definition layer 80 includes a plurality of pixel openings corresponding to the plurality of anodes 311, and each of the pixel openings correspondingly exposes an upper portion of the anode 311.
  • the light-emitting layer 30 may include a plurality of light-emitting pixels corresponding to the plurality of anodes 311 one-to-one.
  • the encapsulation layer 40 covers the pixel definition layer 80 and continuously covers a plurality of pixel openings and a plurality of the light-emitting pixels; wherein the encapsulation layer 40 It may include at least a first inorganic encapsulation layer, a first organic encapsulation layer and a second inorganic encapsulation layer stacked on the pixel definition layer 80 .
  • the touch layer 50 may include a first touch metal layer 502 and a second touch metal layer 504 disposed on the encapsulation layer 40 , and a touch layer disposed on the first touch metal layer An insulating layer between the layer 502 and the second touch metal layer 504 .
  • the touch layer 50 provided in the embodiment of the present application may be mutual capacitance or self capacitance.
  • the first touch metal layer 502 may include a plurality of first electrodes and a plurality of second electrodes.
  • the first connection bridges in a touch metal layer 502 are connected, and the second electrodes are connected through the insulating layer through the second connection bridges in the second touch metal layer 504 .
  • the touch control layer 50 is self-capacitive, the first touch metal layer 502 may include a plurality of touch electrodes distributed in an array, and the second touch metal layer 504 may include a plurality of touch traces 51, and Each touch wire 51 is correspondingly connected to a touch electrode.
  • the touch layer 50 when the touch layer 50 is self-capacitive, the touch layer 50 may only include a metal layer, that is, the metal layer includes a plurality of touch electrodes and adjacent touch electrodes. There are multiple touch wires 51 between them, and each touch wire 51 is correspondingly connected to a touch electrode, and the embodiment of the present application is only described above as an example, but not limited thereto, the specific type of touch layer 50 And the structure can be selected according to actual needs.
  • the first refractive index layer 60 may be disposed on the touch layer 50 , and the first refractive index layer 60 covers the display area 200 of the display panel 100 and extends to The non-display area 300 .
  • the first refractive index layer 60 may include a plurality of first openings 61 formed in the display area 200, and the bottom of each first opening 61 corresponds to one of the pixel openings, that is, each of the first openings 61 all correspond to one of the light-emitting pixels, and the cross-sectional shape of the first opening 61 can be set as an inverted trapezoid.
  • the first refractive index layer 60 may further include at least one blocking groove 62 located in the non-display area 300, and each blocking groove 62 includes a plurality of blocking bodies 63,
  • the number of the blocking grooves 62 can be 1, 2, 3 or more, each of the blocking grooves 62 is used to block the diffusion of the second refractive index layer 70 to the non-display area 300 .
  • the second refractive index layer 70 may be disposed on the first refractive index layer 60 , and the second refractive index layer 70 also covers the display area 200 and extends to non- Display area 300 .
  • the second refractive index layer 70 is filled in the plurality of first openings 61 to form a plurality of microlens units at the plurality of first openings 61, so as to collect light for the corresponding light-emitting pixels and improve their performance.
  • the light extraction effect of the corresponding light-emitting pixels further improves the light extraction efficiency of the display panel 100 .
  • the second refractive index layer 70 also diffuses to the non-display area 300 and fills at least part of the barrier body 63 in the barrier groove 62 .
  • the refractive index of the second refractive index layer 70 may be greater than the refractive index of the first refractive index layer 60 .
  • the large-angle light emitted from the light-emitting pixel enters the first opening 61 in the first refractive index layer 60 from the encapsulation layer 40, and then enters the first refractive index layer 60 and the first refractive index layer 60.
  • the large-angle light at the interface between the second refractive index layers 70 will undergo total reflection to realize the light-gathering effect of the corresponding light-emitting pixels, improve the light-emitting effect of the corresponding light-emitting pixels, and then improve the light-emitting efficiency of the display panel 100 .
  • one of the first openings 61 in the first refractive index layer 60 forms a microstructure with a light-gathering effect.
  • the material of the first refractive index layer 60 and the second refractive index layer 70 can be a material with high light transmittance, and its transmittance is generally required to be greater than 90%, that is, the first refractive index layer
  • the transmittance of the layer 60 and the second refractive index layer 70 is far greater than the transmittance (42%) of the conventional polarizer, and the display panel 100 can be effectively improved by setting a material with a high transmittance instead of the polarizer. light extraction efficiency.
  • the refractive index of the first refractive index layer 60 may be 1.4 to 1.6, and the material of the first refractive index layer 60 may include a light-transmitting organic material with a low refractive index.
  • the material of the first refractive index layer 60 may be acrylic resin, polyimide resin, polyamide resin and/or Alq3 [tris(8-hydroxyquinoline)aluminum] and the like.
  • the refractive index of the second refractive index layer 70 may be 1.61 to 1.8, and the material of the second refractive index layer 70 may include a light-transmitting organic material with a high refractive index.
  • the material of the second refractive index layer 70 can be poly(3,4-ethylenedioxythiophene) (PEDOT), 4,4'-bis[N-(3-methylphenyl)-N- Phenylamino]biphenyl (TPD), 4,4',4"-tris[(3-methylphenyl)phenylamino]triphenylamine (m-MTDATA), 1,3,5-tris[N, N-bis(2-methylphenyl)-amino]benzene (o-MTDAB), 1,3,5-tris[N,N-bis(3-methylphenyl)-amino]benzene (m-MTDAB ), 1,3,5-tris[N,N-bis(3-methylphenyl)-amino]benzene
  • the present application since the structure of the lower border is different from that of the other three borders, the current blocking structure cannot satisfy the control of the cut-off border of the ink at the lower border, so the present application will pattern the blocking groove 62 near the lower border area Chemical treatment, that is, the conventional hollowed-out continuous groove is replaced by the barrier body 63 of the present application.
  • FIG. 7 is a schematic diagram of one blocking groove 62 among the plurality of blocking grooves 62 .
  • a plurality of barrier groups 65 arranged in the second direction Y are arranged in the barrier groove 62, and each barrier group 65 includes a plurality of barrier bodies 63 arranged in the first direction X;
  • the barriers 63 in the two barrier groups 65 are arranged staggered, and the included angle between the first direction X and the second direction Y ranges from 0° to 90°.
  • the first direction X may be the extending direction of the barrier groove 62, or it may be set parallel to the lower frame of the display panel 100, and the second direction Y may be the direction in which the display area 200 extends.
  • the direction to the non-display area 300 that is, the first direction X may be perpendicular to the second direction Y.
  • a plurality of barriers 63 are arranged along the first direction X and the second direction Y, and the barriers 63 in two adjacent rows are arranged in a staggered position, and one barrier group 65 The distance between two adjacent barrier bodies 63 is smaller than the size of the barrier bodies 63 in the first direction X.
  • the barrier body 63 may be a raised structure disposed on the barrier groove 62, for example, when the barrier groove 62 is etched and hollowed out, part of the raised structure is retained to increase the second refractive index The contact area between the material and the barrier groove 62, thereby increasing the surface tension of the second refractive index material; in addition, the barrier body 63 can also be a hole structure arranged in the barrier groove 62, such as a groove in the barrier groove 62 The depth of the film layer structure is not etched to the touch layer 50, and then dig holes on the basis of the film layer to increase the contact area between the second refractive index material and the barrier groove 62, thereby increasing the surface tension of the second refractive index material .
  • the depth of each barrier body 63 is the same as the thickness of the first refractive index layer 60; when the barrier body 63 is a hole structure , the sum of the depth of each barrier body 63 and the depth of the barrier groove is the same as the thickness of the first refractive index layer 60 .
  • the contact between the second refractive index layer 70 and the first refractive index layer 60 is increased by replacing the hollowed-out continuous grooves in the first refractive index layer 60 with a plurality of discontinuous barriers 63 area, thereby increasing the surface tension of the second refractive index layer 70, reducing the expansion force of the second refractive index layer 70 to the non-display area 300, and improving the boundary of the second refractive index layer 70 Effective control saves the space of the non-display area 300 to realize narrow frame display.
  • the shape of the barrier 63 is at least one of square, rhombus or circle.
  • the shape of the barrier body 63 may be a square rotated by 45°.
  • the second refractive index layer 70 when the second refractive index layer 70 diffuses from the display area 200 to the non-display area 300 of the display panel 100, the second refractive index layer 70 will pass through at least part of the barrier 63 , because the barrier body 63 is a square rotated by 45°, the flow direction of the second refractive index layer 70 and the boundary of the barrier body 63 form an angle, and there are more resistance points, and the barrier body 63 can be increased to the second The blocking force of the refractive index layer 70 .
  • the conventional square can also effectively control the cut-off boundary of the second refractive index layer 70, compared with the scheme in FIG.
  • the flow direction is parallel, and its resistance to the second refractive index layer 70 is smaller than that of the solution in FIG. 7 .
  • the center points of two adjacent barrier bodies 63 can be 6 microns to 9 microns, and the diagonal length of each barrier 63 is 8 microns to 12 microns.
  • the size of the two diagonals of the barrier body 63 may be 10 microns, and the size of any side of the barrier body 63 may be 7.07 microns.
  • the distance between two adjacent barrier bodies 63 can be half the side length of the barrier bodies 63, that is, 3.54 microns; In two adjacent blocking groups 65 , the distance between the center points of two adjacent blocking bodies 63 in the second direction Y may be 7.5 microns.
  • the size of the barrier groove 62 in the second direction Y may be 40 microns.
  • the first refractive index layer 60 may include two first-type grooves D1 and one second-type groove D2, two The first type of groove D1 can be respectively a first groove 621 and a second groove 622, one of the second type of grooves D2 can be two separate sub-grooves 623, the second groove 622 Located between the first groove 621 and the sub-groove 623, the sub-groove 623 is located on the side of the second groove 622 away from the display area 200, the first groove 621 is located on the second groove 622 The second groove 622 is close to one side of the display area 200 .
  • the cut-off boundary of the second refractive index layer 70 is between the first opening 61 and the first groove 621 .
  • the second refractive index 70 extends toward the first groove 621, it may be because the surface tension of the second refractive index 70 itself is large enough that it does not cover the first groove 621, so that the The cut-off boundary of the second refractive index 70 is located between the first groove 621 and the display area 200 .
  • the cut-off boundary of the second refractive index 70 may be between the second groove 622 and the first groove 621 .
  • the second refractive index 70 extends toward the second groove 622, it may not cover the The second groove 622 is such that the cut-off boundary of the second refractive index 70 is located between the first groove 621 and the second groove 622 .
  • the cut-off boundary of the second refractive index layer 70 may be between the sub-groove 623 and the second groove 622 .
  • the second refractive index layer 70 extends toward the sub-groove 623, it may not The second groove 622 is covered so that the cut-off boundary of the second refractive index layer 70 is located between the sub-groove 623 and the second groove 622 .
  • the second refractive index layer 70 may also cover the sub-groove 623 and extend away from the sub-groove 623 .
  • the second refractive index layer 70 in order to prevent the second refractive index layer 70 from continuing to extend away from the display area 200 in the display panel 100 after crossing the second groove 622, the second refractive index layer 70 cannot be cut off.
  • the boundary is effectively controlled, and the sub-groove 623 is also provided on the side of the second groove 622 away from the display area 200, and the sub-groove 623 may include a plurality of discontinuous barriers 63.
  • the synergistic effect of the first groove 621, the second groove 622, and the barrier 63 in the sub-groove 623 further increases the The surface tension of the second refractive index layer 70 reduces the expansion force of the second refractive index layer 70 to the non-display area 300, so that the cut-off boundary of the second refractive index is effectively controlled.
  • the size C of each sub-groove 623 may be 1000 microns to 2000 microns.
  • the dimension C of each sub-groove 623 may be 2000 micrometers.
  • the first groove 621 or/or the second groove 622 includes a first blocking section 621a and a second blocking section 621b, and the first blocking section 621a It is arranged vertically to the second barrier segment 621b, and the extension direction of the first barrier segment 621a is parallel to the first direction X.
  • the structure in FIG. 10 is marked with the second groove 622 as an example.
  • a first distance A between the second barrier segment 621b and the sub-groove 623 is 1000 microns to 2000 microns.
  • the first distance A may be 2000 microns.
  • the second cutting line DD that is, the area enclosed by the second cutting line DD is the final shape of the display panel 100, so structures outside the dotted line will not exist in the final product. middle.
  • the second spacing B between the first barrier section 621a and the corner area in the first groove 621 is generally set to be 300 microns to 500 microns.
  • the second distance B may be 500 microns.
  • the touch layer 50 may include a first insulating layer 501 disposed on the encapsulation layer 40 , a first touch metal disposed on the first insulating layer 501 Layer 502, the second insulating layer 503 disposed on the first touch metal layer 502, the second touch metal layer 504 disposed on the second insulating layer 503, the second insulating layer 503 covers the The first touch metal layer 502, the first refractive index layer 60 covers the second touch metal layer 504; and in FIG. , the plurality of touch traces 51 will cross the first groove 621 or/and the second groove 622, so the plurality of touch traces 51 and the first type of groove The position where D1 overlaps is filled with a covering portion 64 .
  • the covering portion 64 may be the material of the first refractive index layer 60 that has not been etched.
  • the covering part 64 includes a plurality of covering subparts 641 covering at least one of the touch traces 51.
  • one covering subpart 641 covers one of the touch traces 51, and the corresponding A plurality of barriers 63 may be disposed between adjacent two covering sub-parts 641 .
  • the present application arranges a plurality of the first groove 621 and/or the second groove 622 with the The covering sub-section 641 corresponding to the touch trace 51, the covering sub-section 641 on the first groove 621 and/or the second groove 622 will not be provided with a barrier 63, that is, the barrier 63 and the touch Control the interference of trace 51.
  • the touch trace 51 is the first touch metal layer 502
  • the thickness of the second insulating layer 503 is relatively thin, the first refractive index layer 60 is etched to form a spacer 63, there is a risk of over-etching.
  • the barrier body 63 is not designed in the area overlapping with the touch control line 51, which avoids interference with the touch control line 51 when the barrier body 63 is etched, and avoids affecting the touch control line 51.
  • the driving circuit layer 20 may further include a plurality of driving circuits electrically connected to the corresponding light-emitting pixels and driving wirings electrically connected to the driving circuits, and the driving wirings connect from the display area 200 Extending to the non-display area 300, the non-display area 300 includes a bending area 400 and a wire changing area 500 arranged between the bending area 400 and the display area 200, and the touch wiring 51
  • the wire changing area 500 is electrically connected to the driving wiring through the via hole 52 , and the wire changing area 500 is arranged between the adjacent sub-grooves 623 .
  • the touch wiring 51 extends from the display area 200 to the non-display area 300 , and in order to reduce the setting of the touch driving chip, the touch wiring 51 in the touch layer 50 is usually switched to the array layer, The display and touch control can be simultaneously driven by one chip. Meanwhile, in the direction of the top view of the display panel 100 , a plurality of the touch wires 51 are disposed between two adjacent sub-grooves 623 . Since the sub-grooves 623 are arranged separately, the distance between two adjacent sub-grooves 623 only needs to ensure that a plurality of the touch wires 51 can pass through.
  • each barrier groove 62 may be equal, and two adjacent barrier grooves 62 may be equal in size.
  • the grooves 62 may be equally spaced.
  • each barrier groove 62 may be 40 microns, and the size of two adjacent barrier grooves 62
  • the pitch can be 40 microns.
  • the size of the first groove 621 , the second groove 622 and the sub-groove 623 in the second direction Y may be equal, and the size may be 40 microns.
  • Adjacent pitches of the first groove 621 , the second groove 622 and the sub-grooves 623 in the second direction Y may be equal, and the pitch may be 40 microns.
  • the size of each of the blocking grooves 62 is larger than the size of the first opening 61 .
  • the dimensions of the first groove 621, the second groove 622, and the sub-groove 623 in the second direction Y are set larger, so as to more effectively block the flow of ink during the process. .
  • the non-display area 300 includes a bending area 400 for bending, and the barrier groove 62 is arranged on the display area 200 and the bending area 400 between. Since the bending area 400 of the display panel 100 corresponds to the lower frame of the final product, the position of the bending area 400 is equivalent to the position of the lower frame of the final product.
  • a plurality of barrier grooves 62 are arranged between the display area 200 and the bending area 400, and the cut-off boundary of the second refractive index is limited to the display area 200 and the bending area 400 by the barrier grooves 62. Between the bending area 400, a narrow frame design is realized.
  • both ends of the first type of groove D1 extend to the border of the display panel 100 and are in contact with the border of the display panel 100 .
  • both ends of the first groove 621 and the second groove 622 may extend toward the border of the display panel 100 and be in contact with the border of the display panel 100; There is a certain distance between the groove 623 and the display panel 100 .
  • the present application also proposes a mobile terminal, which includes a terminal body and the above-mentioned display panel, and the terminal body and the display panel are combined into one.
  • the terminal body may be components such as a circuit board bound to the display panel, a cover plate covering the display panel, and the like.
  • the mobile terminal may include electronic devices such as mobile phones, television sets, and notebook computers.

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Abstract

一种显示面板(100)及移动终端;显示面板(100)包括基板(10)、发光层(30)、触控层(50)、第一折射率层(60)及第二折射率层(70),第二折射率层(70)的折射率大于第一折射率层(60)的折射率,触控层(50)包括从显示区(200)延伸至非显示区(200)的触控走线(51),第一折射率层(60)中的第一类凹槽(D1)覆盖触控走线(51)设置,第二类凹槽(D2)包括至少一个不与触控走线(51)重叠设置的子凹槽(623)。

Description

显示面板及移动终端 技术领域
本申请涉及显示技术领域,尤其涉及一种显示面板及移动终端。
背景技术
目前,为降低OLED(Organic Light-Emitting Diode,有机发光二极管)显示面板的功耗,以及提高OLED显示面板的效率,面板厂商不断推出新的技术。例如,借助几何光学,通过在OLED屏体内设置MLP(Microlens Pattern,微阵列),以将OLED屏体发出的较为发散的光汇聚至屏体正上方,是提高OLED显示面板出光效率的有效手段之一。
然而,MLP技术中的微阵列图形通常需要一道喷墨打印制程来制备,并使其平坦,以方便后续制程。而喷墨打印制程需要提前在屏体周围设置狭缝,以阻挡墨水的流动,限制墨水的覆盖范围。而由于触控走线与MLP膜层相邻设置,且触控走线与狭缝存在交叠区域,在对狭缝进行蚀刻时,易出现过蚀刻使得触控走线暴露而导致触控失效的技术问题。
技术问题
本申请提供一种显示面板及移动终端,以解决现有显示面板中触控走线易出现触控失效的技术问题。
技术解决方案
本申请提供一种显示面板,所述显示面板包括显示区以及位于所述显示区至少一侧的非显示区;所述显示面板还包括:
基板:
发光层,设置于所述基板的一侧,所述发光层包括多个设置在所述显示区中的发光像素;
触控层,设置在所述发光层远离所述基板的一侧,所述触控层包括设置在显示区的触控电极和与触控电极电连接的触控走线,所述触控走线从所述显示区延伸至所述非显示区;
第一折射率层,设置于所述触控层远离所述基板的一侧,所述第一折射率层包括分布于所述显示区内的多个与所述发光像素对应的第一开口;
第二折射率层,设置于所述第一折射率层远离所述基板的一侧,并填充多个所述第一开口,所述第二折射率层的折射率大于所述第一折射率层的折射率;
其中,所述第一折射率层还包括分布于所述非显示区内的沿第一方向延伸的多个阻隔槽,所述多个阻隔槽包括第一类凹槽和第二类凹槽,所述第一类凹槽覆盖所述触控走线设置,所述第二类凹槽包括至少一个不与所述触控走线重叠设置的子凹槽。
在本申请的显示面板中,所述显示面板还包括:
驱动电路层,设置在所述基板和所述发光层之间,所述驱动电路层包括多个与相应所述发光像素电连接的驱动电路和与驱动电路电连接的驱动走线,所述驱动走线从所述显示区延伸至所述非显示区;
所述非显示区包括弯折区和设置在所述弯折区和所述显示区之间的换线区,所述触控走线在所述换线区与所述驱动走线通过过孔电连接;
相邻所述子凹槽之间设置有换线区。
在本申请的显示面板中,所述第一类凹槽与所述触控走线重叠的位置填充有覆盖部。
在本申请的显示面板中,所述覆盖部包括多个至少覆盖一条所述触控走线的覆盖子部。
在本申请的显示面板中,至少一所述阻隔槽内设置有沿第二方向排列的多个阻隔组,每一个所述阻隔组包括多个沿所述第一方向排列的多个阻隔体;
其中,相邻两个所述阻隔组中的所述阻隔体错位排布,所述第一方向与所述第二方向的夹角范围为0°至90°。
在本申请的显示面板中,在所述显示面板的俯视图方向上,所述阻隔体的形状为正方形、菱形或圆形中的至少一者。
在本申请的显示面板中,在相邻两个所述阻隔组中,相邻两个所述阻隔体的中心间距为6微米至9微米;
其中,所述阻隔体的对角线长度为8微米至12微米。
在本申请的显示面板中,在所述第二方向上,每一所述阻隔槽的尺寸相等,相邻两个所述阻隔槽的间距相等。
在本申请的显示面板中,在所述第二方向上,每一所述阻隔槽的尺寸为40微米,相邻两个所述阻隔槽的间距为40微米。
在本申请的显示面板中,在所述第二方向上,每一所述阻隔槽的尺寸大于所述第一开口的尺寸。
在本申请的显示面板中,所述第一类凹槽包括一第一凹槽和一第二凹槽,所述第二类凹槽包括两个分离设置的所述子凹槽,所述第二凹槽位于所述第一凹槽和子凹槽之间,所述子凹槽位于所述第二凹槽远离所述显示区的一侧,所述第一凹槽位于所述第二凹槽靠近所述显示区的一侧;
其中,所述第二折射率层的边界处于所述第一开口和所述第一凹槽之间;
或者,所述第二折射率层的边界处于所述第一凹槽和所述第二凹槽之间;
或者,所述第二折射率层的边界处于所述子凹槽和所述第二凹槽之间。
在本申请的显示面板中,在所述第一方向上,每一个所述子凹槽的尺寸为1000微米至2000微米。
在本申请的显示面板中,所述第一凹槽或/所述第二凹槽包括第一阻隔段和第二阻隔段,所述第一阻隔段和所述第二阻隔段垂直设置,所述第一阻隔段的延伸方向与所述第一方向平行;
其中,在所述第一方向上,所述第二阻隔段和所述子凹槽的间距为1000微米至2000微米。
在本申请的显示面板中,所述第一类凹槽设置在所述显示区和弯折区之间;
其中,所述第一类凹槽的两端延伸至所述显示面板的边界,并与所述显示面板的边界相接触。
本申请还提出了一种移动终端,其中,所述移动终端包括终端主体和上述显示面板,所述终端主体和所述显示面板组合为一体。
有益效果
本申请通过远离所述显示区的一侧设置至少一个不与触控走线重叠的子凹槽,减少了阻隔槽和触控走线的交叠面积,改善了因阻隔槽的过刻蚀而导致触控走线失效的技术问题。
附图说明
图1为现有显示面板的第一种俯视结构图;
图2为现有显示面板的第二种俯视结构图;
图3为现有显示面板的第三种俯视结构图;
图4为本申请显示面板的第一种俯视结构图;
图5为本申请显示面板的第一种剖面结构图;
图6为本申请显示面板的膜层结构图;
图7为本申请显示面板中阻隔槽的放大图;
图8为本申请显示面板的第二种剖面结构图;
图9为本申请显示面板的第三种剖面结构图
图10为图4中区域AA的第一种放大图;
图11为图4中区域AA的第二种放大图。
本发明的实施方式
为使本申请的目的、技术方案及效果更加清楚、明确,以下参照附图并举实施例对本申请进一步详细说明。应当理解,此处所描述的具体实施例仅用以解释本申请,并不用于限定本申请。
请参阅图1,图1中的方形结构为显示面板在切割前的结构,该方形结构的外围实线为第一切割线GG,图1中的方形结构的内部的虚线为第二切割线DD,所述第一切割线GG为母板切割成该方形结构的切割线,所述第二切割线DD为待切割的显示面板的目标形状。
请参阅图2,MLP技术中的微阵列图形通常需要一道喷墨打印制程来制备,图2中方形结构内不规则的实线为油墨的非规则边界YM。请参阅图3,为了对油墨的边界进行控制,当前通常在显示面板外围设置多条阻隔槽62,但是由于下边界和其他三个边界的结构不相同,当前阻挡结构可能与纵向设置的触控走线交叠设置,而在对阻隔槽62进行蚀刻时,易出现过蚀刻使得触控走线暴露而导致触控失效的技术问题,因此本申请提出了一种显示面板以解决上述技术问题。
请参阅图4至图11,本申请提供一种显示面板100,其中,所述显示面板100包括显示区200以及位于所述显示区200至少一侧的非显示区300。
在本实施例中,所述显示面板100还可以包括基板10、发光层30、触控层50、第一折射率层60以及第二折射率层70。
在本实施例中,所述发光层30设置于所述基板10的一侧,所述发光层30包括多个设置在所述显示区200中的发光像素;所述第一折射率层60设置于所述发光层30的一侧,所述第一折射率层60包括分布于所述显示区200内的多个与所述发光像素对应的第一开口61;所述第二折射率层70设置于所述第一折射率层60远离所述基板10的一侧,并填充多个所述第一开口61,所述第二折射率层70的折射率大于所述第一折射率层60的折射率。
在本实施例中,所述触控层50设置在所述发光层30远离所述基板10的一侧,所述触控层50包括设置在显示区200的触控电极和与触控电极电连接的触控走线51,所述触控走线51从所述显示区200延伸至所述非显示区300。
在本实施例中,所述第一折射率层60还包括分布于所述非显示区300内的沿第一方向X延伸的多个阻隔槽62,所述多个阻隔槽62包括第一类凹槽D1和第二类凹槽D2,所述第一类凹槽D1覆盖所述触控走线51设置,所述第二类凹槽D2包括至少一个不与所述触控走线51重叠设置的子凹槽623。
本申请通过远离所述显示区200的一侧设置至少一个不与触控走线51重叠的子凹槽623,减少了阻隔槽62和触控走线51的交叠面积,改善了因阻隔槽62的过刻蚀而导致触控走线51失效的技术问题。
现结合具体实施例对本申请的技术方案进行描述。
请参阅图4,所述显示面板100可以包括显示区200以及位于显示区200至少一侧非显示区300,需要说明的是,所述非显示区300可以为所述显示面板100的下边框区域。
请参阅图5和图6,所述显示面板100可以包括设置于所述基板10上的驱动电路层20、设置于所述驱动电路层20上的像素定义层80、与所述像素定义层80同层设置的所述发光层30、设置于所述像素定义层80上的封装层40、设置于所述封装层40上的触控层50、设置于所述触控层50上的所述第一折射率层60、以及设置于所述第一折射率层60上的所述第二折射率层70。
在本实施例中,所述基板10的材料可以为玻璃、石英或聚酰亚胺等材料。
在本实施例中,请参阅图6,所述驱动电路层20可以包括多个薄膜晶体管21,所述薄膜晶体管21可以为蚀刻阻挡型、背沟道蚀刻型,或者根据栅极与有源层的位置划分为底栅薄膜晶体管、顶栅薄膜晶体管等结构,具体没有限制。例如,图6中所示的薄膜晶体管21为顶栅型薄膜晶体管,该薄膜晶体管21可以包括设置于所述基板10上的遮光层211、设置于所述遮光层211缓冲层212、设置于所述缓冲层212上的有源层213、设置于所述有源层213上的栅绝缘层214、设置于所述栅绝缘层214上的栅极层215、设置于所述栅极层215上的间绝缘层216、设置于所述间绝缘层216上的源漏极层217、设置于所述源漏极层217上的平坦层218。
在本实施例中,请参阅图5,所述显示面板100还可以包括设置于所述平坦层218上的阳极层31、设置于所述阳极层31上的发光层30、以及设置于所述发光层30上的阴极层32。所述阳极层31包括多个阳极311,所述像素定义层80包括与多个所述阳极311一一对应的多个像素开口,且每一所述像素开口对应露出一所述阳极311的上表面,所述发光层30可包括与多个所述阳极311一一对应的多个发光像素。
在本实施例中,请参阅图5,所述封装层40覆盖于所述像素定义层80上,并连续地覆盖多个像素开口以及多个所述发光像素上;其中,所述封装层40可以至少包括层叠设置于像素定义层80上的第一无机封装层、第一有机封装层以及第二无机封装层。
在本实施例中,请参阅图5,所述触控层50可以包括设置于封装层40上的第一触控金属层502与第二触控金属层504,以及设置于第一触控金属层502与第二触控金属层504之间的绝缘层。
在本实施例中,本申请实施例提供的所述触控层50可为互容式或自容式。
在本实施例中,若所述触控层50为互容式,则第一触控金属层502可包括多个第一电极与多个第二电极,多个第一电极之间通过位于第一触控金属层502中的第一连接桥相连接,多个第二电极之间通过位于第二触控金属层504中的第二连接桥穿过绝缘层进行连接。若所述触控层50为自容式,则第一触控金属层502可包括阵列分布的多个触控电极,而第二触控金属层504可包括多个触控走线51,且每一触控走线51对应连接一触控电极。
在本实施例中,当所述触控层50为自容式,该触控层50也可仅包含一层金属层,即该金属层包括多个触控电极以及位于相邻的触控电极之间的多个触控走线51,且每一触控走线51对应连接至一触控电极,且本申请实施例仅以上描述为例,但不限于此,具体触控层50的类型和结构可根据实际需求进行选择。
在本实施例中,请参阅图5,所述第一折射率层60可以设置于所述触控层50上,且第一折射率层60覆盖于显示面板100的显示区200内并延伸至非显示区300。所述第一折射率层60可以包括形成于显示区200内的多个第一开口61,每一所述第一开口61的下方皆对应一所述像素开口,即每一所述第一开口61皆对应一所述发光像素,且所述第一开口61的截面形状可设置为倒梯形。
在本实施例中,所述第一折射率层60还可以包括位于所述非显示区300内的至少一所述阻隔槽62,每一条所述阻隔槽62包括多个所述阻隔体63,所述阻隔槽62的数量可以为1条、2条、3条及以上,每一条所述阻隔槽62用于阻挡所述第二折射率层70向非显示区300扩散。
在本实施例中,请参阅图5,所述第二折射率层70可以设置于所述第一折射率层60上,且第二折射率层70同样覆盖于显示区200内并延伸至非显示区300。所述第二折射率层70填充于多个第一开口61内,以在多个第一开口61处形成多个微透镜单元,进而可以对其对应的发光像素起到聚光作用,提高其对应的发光像素的出光效果,进而提高显示面板100的出光效率。
在本实施例中,所述第二折射率层70还向非显示区300扩散,以及填充所述阻隔槽62中至少部分所述阻隔体63。
在本实施例中,所述第二折射率层70的折射率可以大于所述第一折射率层60的折射率。从发光像素中发出的大角度光线从所述封装层40入射至所述第一折射率层60中的所述第一开口61内,其次入射至所述第一折射率层60和所述第二折射率层70之间的交界面,而由于所述第二折射率层70的折射率大于所述第一折射率层60的折射率,因此入射至所述第一折射率层60和所述第二折射率层70之间的交界面大角度光线将会发生全反射,以实现对应发光像素的聚光作用,提高其对应的发光像素的出光效果,进而提高显示面板100的出光效率。
在本实施例中,所述第一折射率层60中的一个所述第一开口61形成一个具有聚光效果的微结构。
在本实施例中,所述第一折射率层60以及所述第二折射率层70的材料可以为高透光性材料,其透过率一般要求大于90%,即所述第一折射率层60以及所述第二折射率层70的透过率远远大于常规偏光片的透过率(42%),通过设置高透过率的材料替代偏光片,能够有效提升所述显示面板100的出光效率。
在本实施例中,所述第一折射率层60的折射率可为1.4至1.6,且所述第一折射率层60的材料可包括具有低折射率的透光有机材料。例如,所述第一折射率层60的材料可以为丙烯酸树脂、聚酰亚胺树脂、聚酰胺树脂和/或Alq3[三(8-羟基喹啉)铝]等。
在本实施例中,所述第二折射率层70的折射率可为1.61至1.8,且所述第二折射率层70的材料可包括具有高折射率的透光有机材料。例如,所述第二折射率层70的材料可以为聚(3,4-乙撑二氧噻吩)(PEDOT)、4,4'-双[N-(3-甲基苯基)-N-苯基氨基]联苯(TPD)、4,4',4”-三[(3-甲基苯基)苯基氨基]三苯胺(m-MTDATA)、1,3,5-三[N,N-双(2-甲基苯基)-氨基]苯(o-MTDAB)、1,3,5-三[N,N-双(3-甲基苯基)-氨基]苯(m-MTDAB)、1,3,5-三[N,N-双(4-甲基苯基)氨基]苯(p-MTDAB)、4,4'-双[N,N-双(3-甲基苯基)-氨基]二苯基甲烷(BPPM)、4,4'-二咔唑基-1,1'-联苯(CBP)、4,4',4”-三(N-咔唑)三苯胺(TCTA)、2,2',2”-(1,3,5-苯三基)三-[1-苯基-1H-苯并咪唑](TPBI)和/或3-(4-联苯基)-4-苯基-5-叔丁基苯基-1,2,4-三唑(TAZ)。
在本申请的显示面板100中,由于下边界和其他三个边界的结构不相同,当前阻挡结构无法满足油墨在下边界的截止边界的控制,因此本申请将靠近下边框区域的阻隔槽62进行图案化处理,即由常规的挖空的连续凹槽替换为本申请的阻隔体63。
请参阅图4,图4中区域AA中的阻隔槽62需要重新设计。请参阅图7,图7为多条阻隔槽62中的一条阻隔槽62的示意图。所述阻隔槽62内设置有沿第二方向Y排列的多个阻隔组65,每一个所述阻隔组65包括多个沿所述第一方向X排列的多个所述阻隔体63;相邻两个所述阻隔组65中的所述阻隔体63错位排布,所述第一方向X与所述第二方向Y的夹角范围为0°至90°。
在本实施例中,所述第一方向X可以为所述阻隔槽62的延伸方向,也可以与所述显示面板100的下边框平行设置,所述第二方向Y可以为所述显示区200至所述非显示区300的方向,即所述第一方向X可以与所述第二方向Y垂直。
在本实施例中,多个所述阻隔体63沿所述第一方向X和所述第二方向Y排列,相邻两行的所述阻隔体63错位设置,一所述阻隔组65中的相邻两个所述阻隔体63的间距小于所述阻隔体63在所述第一方向X上的尺寸。
在本实施例中,所述阻隔体63可以为设置于所述阻隔槽62的凸起结构,例如在对阻隔槽62进行蚀刻挖空的同时,保留部分凸起结构,以增加第二折射率材料与阻隔槽62的接触面积,进而提高第二折射率材料的表面张力;另外,所述阻隔体63还可以为设置于所述阻隔槽62内的孔结构,例如阻隔槽62内的凹槽深度未蚀刻至触控层50的膜层结构,进而在该膜层的基础上进行挖孔,以增加第二折射率材料与阻隔槽62的接触面积,进而提高第二折射率材料的表面张力。
在本实施例中,当所述阻隔体63为凸起结构时,每一所述阻隔体63的深度和所述第一折射率层60的厚度相同;当所述阻隔体63为孔结构时,每一所述阻隔体63的深度和所述阻隔槽的深度之和与所述第一折射率层60的厚度相同。
本实施例通过将第一折射率层60中挖空的连续凹槽替换为多个非连续的阻隔体63,增加了所述第二折射率层70与所述第一折射率层60的接触面积,进而增加了所述第二折射率层70的表面张力,减小了所述第二折射率层70向非显示区300的扩张力,对所述第二折射率层70的边界进行了有效控制,节省非显示区300的空间,以实现窄边框显示。
在本申请的显示面板100中,在所述显示面板100的俯视图方向上,所述阻隔体63的形状为正方形、菱形或圆形中的至少一者。
请参阅图7,所述阻隔体63的形状可以为旋转了45°的正方形。
在本实施例中,所述第二折射率层70从所述显示面板100的显示区200域向非显示区300扩散时,所述第二折射率层70将经过至少部分所述阻隔体63,由于所述阻隔体63为旋转了45°的正方形,因此第二折射率层70的流动方向和阻隔体63的边界呈夹角,存在较多的阻力点,可以增加阻隔体63对第二折射率层70的阻挡力。
在本实施例中,常规的正方形虽然同样可以对第二折射率层70的截止边界进行有效的控制,但是相比图7中的方案,常规正方形有两条边界与第二折射率层70的流动方向平行,其对第二折射率层70的阻挡力小于图7中的方案。
在本申请的显示面板100中,基于所述阻隔槽62的尺寸和阻隔体63数量的考量,在相邻两个所述阻隔组65中,相邻两个所述阻隔体63的中心点的间距可以为6微米至9微米,每一所述阻隔体63的对角线长度为8微米至12微米。
请参阅图7,以旋转了45°的正方形的为例,所述阻隔体63的两条对角线的尺寸可以为10微米,所述阻隔体63的任一条边的尺寸为7.07微米。
在本实施例中,请参阅图7,在不同阻隔组65中,相邻两个所述阻隔体63的间距可以为所述阻隔体63的边长的一半,即3.54微米;其次,在相邻两个所述阻隔组65中,相邻两个所述阻隔体63的中心点在所述第二方向Y上的间距可以为7.5微米。
在本实施例中,所述阻隔槽62在所述第二方向Y上的尺寸可以为40微米。
在本申请的显示面板100中,以图4的结构为例,所述第一折射率层60可以包括两个所述第一类凹槽D1和一个所述第二类凹槽D2,两个所述第一类凹槽D1可以分别为第一凹槽621和第二凹槽622,一条所述第二类凹槽D2可以两个分离设置的子凹槽623,所述第二凹槽622位于所述第一凹槽621和子凹槽623之间,所述子凹槽623位于所述第二凹槽622远离所述显示区200的一侧,所述第一凹槽621位于所述第二凹槽622靠近所述显示区200的一侧。
请参阅图8,述第二折射率层70的截止边界处于所述第一开口61和所述第一凹槽621之间。在所述第二折射率70向所述第一凹槽621延伸时,可能由于所述第二折射率70自身的表面张力足够大,其并未覆盖所述第一凹槽621,使得所述第二折射率70的截止边界位于所述第一凹槽621和所述显示区200之间。
请参阅图9,所述第二折射率70的截止边界可以处于所述第二凹槽622和所述第一凹槽621之间。在所述第二折射率70向所述第二凹槽622延伸时,可能由于所述第一凹槽621的阻挡作用以及所述第二折射率70自身的表面张力足够大,其并未覆盖所述第二凹槽622,使得所述第二折射率70的截止边界位于所述第一凹槽621和所述第二凹槽622之间。
请参阅图5,所述第二折射率层70的截止边界可以处于所述子凹槽623和所述第二凹槽622之间。在所述第二折射率层70向所述子凹槽623延伸时,可能由于所述第二凹槽622的阻挡作用以及所述第二折射率层70自身的表面张力足够大,其并未覆盖所述第二凹槽622,使得所述第二折射率层70的截止边界位于所述子凹槽623和所述第二凹槽622之间。
另外,所述第二折射率层70还可能覆盖所述子凹槽623,以及向远离所述子凹槽623的方向延伸。
在本实施例中,为了避免第二折射率层70在跨过第二凹槽622之后,继续向远离所述显示面板100中显示区200的方向延伸,无法对第二折射率层70的截止边界进行有效控制,其在第二凹槽622的远离所述显示区200的一侧还设置有所述子凹槽623,所述子凹槽623内可以包括多个非连续的所述阻隔体63。
在本实施例中,所述第一凹槽621、所述第二凹槽622、以及所述子凹槽623中的所述阻隔体63的协同作用,进一步增加了所述第二折射率层70的表面张力,减小了所述第二折射率层70向非显示区300的扩张力,使得所述第二折射率的截止边界得到有效控制。
在本实施例中,在所述第一方向X上,每一个所述子凹槽623的尺寸C可以为1000微米至2000微米。
在本实施例中,请参阅图10,在所述第一方向X上,每一个所述子凹槽623的尺寸C可以为2000微米。
在本申请的显示面板100中,请参阅图10,所述第一凹槽621或/所述第二凹槽622包括第一阻隔段621a和第二阻隔段621b,所述第一阻隔段621a和所述第二阻隔621b段垂直设置,所述第一阻隔段621a的延伸方向与所述第一方向X平行,图10中的结构以所述第二凹槽622为例进行标注。
在本实施例中,在所述第一方向X上,所述第二阻隔段621b和所述子凹槽623的第一间距A为1000微米至2000微米。
在本实施例中,请参阅图10,所述第一间距A可以为2000微米。
请参阅图10,由于图10中虚线为第二切割线DD,即所述第二切割线DD所围成的区域为显示面板100的最终形状,因此虚线外的结构将不存在于最终的产品中。但是在所述第一凹槽621中的所述第一阻隔段621a至拐角区域的第二间距B一般设定为300微米至500微米。
在本实施例中,请参阅图10,所述第二间距B可以为500微米。
在本申请的显示面板100中,请参阅图5和图11,所述触控层50可以设置于所述封装40和所述第一折射率层60之间,所述触控层50包括从所述显示区200向所述非显示区300延伸的多条触控走线51,多条所述触控走线51包括与至少一所述阻隔槽62重叠设置的多个重叠部。
在本实施例中,请参阅图5,所述触控层50可以包括设置在所述封装层40上的第一绝缘层501、设置于所述第一绝缘层501上的第一触控金属层502、设置于所述第一触控金属层502上的第二绝缘层503、设置于所述第二绝缘层503上的第二触控金属层504,所述第二绝缘层503覆盖所述第一触控金属层502,所述第一折射率层60覆盖所述第二触控金属层504;而在图11中,当触控走线51从显示区200向非显示区300延伸时,多条所述触控走线51将跨过所述第一凹槽621或/和所述第二凹槽622,因此多条所述触控走线51和所述第一类凹槽D1重叠的位置填充有覆盖部64。
在本实施例中,所述覆盖部64可以为未进行蚀刻的第一折射率层60的材料。
请参阅图11,所述覆盖部64包括多个至少覆盖一条所述触控走线51的覆盖子部641,本实施例中一覆盖子部641覆盖一条所述触控走线51,以及相邻两个所述覆盖子部641之间可以设置多个所述阻隔体63。
请参阅图5和图11,由于所述第一折射率层60覆盖所述第二触控金属层504,因此当所述触控走线51为所述第二触控金属层504时,所述阻隔体63将与所述触控走线51干涉,因此为了避免二者的干涉,本申请在所述第一凹槽621或/和所述第二凹槽622上设置与多条所述触控走线51对应的覆盖子部641,所述第一凹槽621或/和所述第二凹槽622上的覆盖子部641将不设置阻隔体63,即避免了阻隔体63和触控走线51的干涉。
在本实施例中,当所述触控走线51为所述第一触控金属层502,由于第二绝缘层503的厚度较薄,在对第一折射率层60进行蚀刻以形成阻隔体63时,易出现过蚀刻的风险。
本实施例通过将与触控走线51交叠的区域未进行阻隔体63的设计,避免了在进行阻隔体63蚀刻时与所述触控走线51的干涉,避免了对所述触控走线51进行过蚀刻的技术问题。
在本实施例中,所述驱动电路层20还可以包括多个与相应所述发光像素电连接的驱动电路和与驱动电路电连接的驱动走线,所述驱动走线从所述显示区200延伸至所述非显示区300,所述非显示区300包括弯折区400和设置在所述弯折区400和所述显示区200之间的换线区500,所述触控走线51在所述换线区500与所述驱动走线通过过孔52电连接,相邻所述子凹槽623之间设置有换线区500。
请参阅图11,触控走线51从显示区200向非显示区300延伸,而为了减少触控驱动芯片的设置,通常将触控层50中的触控走线51换线至阵列层,以通过一个芯片同时对显示和触控进行驱动。同时,在所述显示面板100的俯视图方向上,多条所述触控走线51设置于相邻两个所述子凹槽623之间。由于所述子凹槽623为分离设置,因此相邻两个所述子凹槽623之间的间距只要保证能让多条所述触控走线51通过即可。
在本申请的显示面板100中,请参阅图4,在多条所述阻隔槽62中,在第二方向Y上,每一所述阻隔槽62的尺寸可以相等,相邻两个所述阻隔槽62的间距可以相等。
在本申请的显示面板100中,在多条所述阻隔槽62中,在第二方向Y上,每一所述阻隔槽62的尺寸可以为40微米,相邻两个所述阻隔槽62的间距可以为40微米。
例如,所述第一凹槽621、所述第二凹槽622以及所述子凹槽623在第二方向Y上的尺寸可以相等,该尺寸可以为40微米。所述第一凹槽621、所述第二凹槽622以及所述子凹槽623在第二方向Y上的相邻间距可以相等,该间距可以为40微米。
在本申请的显示面板100中,在第二方向Y上,每一所述阻隔槽62的尺寸大于所述第一开口61的尺寸。本实施例将所述第一凹槽621、所述第二凹槽622以及所述子凹槽623在第二方向Y上的尺寸设置的较大,进而可以更加有效地阻挡制程中墨水的流动。
在本申请的显示面板100中,请参阅图10,所述非显示区300包括用于弯折的弯折区400,所述阻隔槽62设置在所述显示区200和所述弯折区400之间。由于显示面板100的弯折区400与最终产品的下边框对应,因此弯折区400的位置相当于最终产品中下边框的位置。而本实施例将多条所述阻隔槽62设置在所述显示区200和所述弯折区400之间,通过阻隔槽62将第二折射率的截止边界限制在所述显示区200和所述弯折区400之间,实现了窄边框的设计。
在本实施例中,所述第一类凹槽D1的两端延伸至所述显示面板100的边界,并与所述显示面板100的边界相接触。请参阅图10中,所述第一凹槽621和所述第二凹槽622的两端可以向所述显示面板100的边界延伸,并与所述显示面板100的边界接触;而所述子凹槽623则与所述显示面板100存在一定的间距。
本申请还提出了一种移动终端,其包括终端主体和上述显示面板,所述终端主体和所述显示面板组合为一体。该终端主体可以为绑定于显示面板的电路板等器件以及覆盖在所述显示面板上的盖板等。所述移动终端可以包括手机、电视机、笔记本电脑等电子设备。
可以理解的是,对本领域普通技术人员来说,可以根据本申请的技术方案及其发明构思加以等同替换或改变,而所有这些改变或替换都应属于本申请所附的权利要求的保护范围。

Claims (20)

  1. 一种显示面板,其中,所述显示面板包括显示区以及位于所述显示区至少一侧的非显示区;所述显示面板还包括:
    基板:
    发光层,设置于所述基板的一侧,所述发光层包括多个设置在所述显示区中的发光像素;
    触控层,设置在所述发光层远离所述基板的一侧,所述触控层包括设置在显示区的触控电极和与触控电极电连接的触控走线,所述触控走线从所述显示区延伸至所述非显示区;
    第一折射率层,设置于所述触控层远离所述基板的一侧,所述第一折射率层包括分布于所述显示区内的多个与所述发光像素对应的第一开口;
    第二折射率层,设置于所述第一折射率层远离所述基板的一侧,并填充多个所述第一开口,所述第二折射率层的折射率大于所述第一折射率层的折射率;
    其中,所述第一折射率层还包括分布于所述非显示区内的沿第一方向延伸的多个阻隔槽,所述多个阻隔槽包括第一类凹槽和第二类凹槽,所述第一类凹槽覆盖所述触控走线设置,所述第二类凹槽包括至少一个不与所述触控走线重叠设置的子凹槽。
  2. 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:
    驱动电路层,设置在所述基板和所述发光层之间,所述驱动电路层包括多个与相应所述发光像素电连接的驱动电路和与驱动电路电连接的驱动走线,所述驱动走线从所述显示区延伸至所述非显示区;
    所述非显示区包括弯折区和设置在所述弯折区和所述显示区之间的换线区,所述触控走线在所述换线区与所述驱动走线通过过孔电连接;
    相邻所述子凹槽之间设置有换线区。
  3. 根据权利要求1所述的显示面板,其中,所述第一类凹槽与所述触控走线重叠的位置填充有覆盖部。
  4. 根据权利要求3所述的显示面板,其中,所述覆盖部包括多个至少覆盖一条所述触控走线的覆盖子部。
  5. 根据权利要求1所述的显示面板,其中,至少一所述阻隔槽内设置有沿第二方向排列的多个阻隔组,每一个所述阻隔组包括多个沿所述第一方向排列的多个阻隔体;
    其中,相邻两个所述阻隔组中的所述阻隔体错位排布,所述第一方向与所述第二方向的夹角范围为0°至90°。
  6. 根据权利要求5所述的显示面板,其中,在所述显示面板的俯视图方向上,所述阻隔体的形状为正方形、菱形或圆形中的至少一者。
  7. 根据权利要求5所述的显示面板,其中,在相邻两个所述阻隔组中,相邻两个所述阻隔体的中心间距为6微米至9微米。
  8. 根据权利要求7所述的显示面板,其中,所述阻隔体的对角线长度为8微米至12微米。
  9. 根据权利要求8所述的显示面板,其中,在所述第二方向上,每一所述阻隔槽的尺寸相等,相邻两个所述阻隔槽的间距相等。
  10. 根据权利要求8所述的显示面板,其中,在所述第二方向上,每一所述阻隔槽的尺寸为40微米,相邻两个所述阻隔槽的间距为40微米。
  11. 根据权利要求8所述的显示面板,其中,在所述第二方向上,每一所述阻隔槽的尺寸大于所述第一开口的尺寸。
  12. 根据权利要求8所述的显示面板,其中,所述第一类凹槽包括一第一凹槽和一第二凹槽,所述第二类凹槽包括两个分离设置的所述子凹槽,所述第二凹槽位于所述第一凹槽和子凹槽之间,所述子凹槽位于所述第二凹槽远离所述显示区的一侧,所述第一凹槽位于所述第二凹槽靠近所述显示区的一侧。
  13. 根据权利要求12所述的显示面板,其中,所述第二折射率层的边界处于所述第一开口和所述第一凹槽之间。
  14. 根据权利要求12所述的显示面板,其中,所述第二折射率层的边界处于所述第一凹槽和所述第二凹槽之间。
  15. 根据权利要求12所述的显示面板,其中,所述第二折射率层的边界处于所述子凹槽和所述第二凹槽之间。
  16. 根据权利要求12所述的显示面板,其中,在所述第一方向上,每一个所述子凹槽的尺寸为1000微米至2000微米。
  17. 根据权利要求12所述的显示面板,其中,所述第一凹槽或/所述第二凹槽包括第一阻隔段和第二阻隔段,所述第一阻隔段和所述第二阻隔段垂直设置,所述第一阻隔段的延伸方向与所述第一方向平行。
  18. 根据权利要求17所述的显示面板,其中,在所述第一方向上,所述第二阻隔段和所述子凹槽的间距为1000微米至2000微米。
  19. 根据权利要求12所述的显示面板,其中,所述第一类凹槽设置在所述显示区和弯折区之间;
    其中,所述第一类凹槽的两端延伸至所述显示面板的边界,并与所述显示面板的边界相接触。
  20. 一种移动终端,其中,所述移动终端包括终端主体和如权利要求1所述的显示面板,所述终端主体和所述显示面板组合为一体。
PCT/CN2021/140146 2021-12-17 2021-12-21 显示面板及移动终端 WO2023108726A1 (zh)

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