WO2024021053A1 - 显示面板、显示面板的制造方法以及显示装置 - Google Patents

显示面板、显示面板的制造方法以及显示装置 Download PDF

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Publication number
WO2024021053A1
WO2024021053A1 PCT/CN2022/109079 CN2022109079W WO2024021053A1 WO 2024021053 A1 WO2024021053 A1 WO 2024021053A1 CN 2022109079 W CN2022109079 W CN 2022109079W WO 2024021053 A1 WO2024021053 A1 WO 2024021053A1
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WIPO (PCT)
Prior art keywords
light
transmitting
display panel
layer
base substrate
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PCT/CN2022/109079
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English (en)
French (fr)
Inventor
王彦强
高涛
王云浩
夏维
Original Assignee
京东方科技集团股份有限公司
成都京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 成都京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to PCT/CN2022/109079 priority Critical patent/WO2024021053A1/zh
Priority to CN202280002459.8A priority patent/CN117957595A/zh
Publication of WO2024021053A1 publication Critical patent/WO2024021053A1/zh

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    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate

Definitions

  • the present application relates to the field of display technology, and in particular to a display panel, a manufacturing method of a display panel, and a display device.
  • the display panel is a component that can realize the image display function.
  • the current display panel includes a base substrate, a plurality of light-emitting units located on the base substrate, a first light-transmitting layer and a second light-transmitting layer disposed above the plurality of light-emitting units.
  • the first light-transmitting layer has openings. The opening faces the light-emitting unit.
  • the second light-transmitting layer is formed through an inkjet process. The second light-transmitting layer fills the opening of the first light-transmitting layer, and then forms a lens-like structure at the opening to improve the display panel. Light extraction efficiency.
  • the above display panel has poor bendability.
  • Embodiments of the present application provide a display panel, a display panel manufacturing method, and a display device.
  • the technical solutions are as follows:
  • a display panel including:
  • a light-transmitting layer located on a base substrate provided with the plurality of light-emitting units, the light-transmitting layer having a plurality of openings, and a first light-emitting unit among the plurality of light-emitting units is on the base substrate
  • the orthographic projection overlaps with the orthographic projection of the first opening among the plurality of openings on the base substrate;
  • the first light-transmitting structure includes a first part covering the light-transmitting layer, and a second part located in the first opening, the first part being vertical and away from the substrate The height of the substrate in the first direction is greater than the height of the second part in the first direction.
  • the top surface of the first part of the first light-transmitting structure includes an arcuate surface that is convex in a direction away from the base substrate.
  • the side surface of the first part is an inclined plane inclined toward the center of the first opening, and the slope angle of the side surface of the first part is greater than or equal to 50 degrees.
  • the slope angle of the side of the first part ranges from 70 degrees to 80 degrees.
  • the hole wall of the first opening of the light-transmitting layer is inclined in a direction away from the center of the first opening, and the slope angle of the hole wall is greater than the light-transmitting pattern and the light-transmitting layer.
  • the critical angle of total reflection at the interface is greater than the critical angle of total reflection at the interface.
  • the display panel has an effective display area and a peripheral area located outside the effective display area, and the light-transmitting pattern is located in the effective display area;
  • the display panel also includes:
  • the target pattern located on the base substrate on which the light-emitting unit is provided, the target pattern is located in the peripheral area, and the refractive index of the material of the target pattern is greater than the refractive index of the material of the first light-transmitting layer .
  • the target pattern and the light-transmitting pattern have the same layer structure.
  • the target pattern includes at least one block structure group, and one block structure group includes a plurality of block structures arranged outside the effective display area along an edge of the effective display area.
  • the target pattern includes at least two block structure groups, and at least two block structure groups are arranged sequentially in a direction away from the center of the display panel.
  • the target pattern includes a strip-like structure extending and arranged outside the effective display area along an edge of the effective display area.
  • the target pattern includes at least two of the strip structures, and at least two of the strip structures are arranged sequentially outside the effective display area in a direction away from the center of the display panel.
  • the size of the block structure is the same as the size of the light-transmitting structure.
  • the display panel further includes a first protruding structure, the first protruding structure is located in the opening of the first light-transmitting layer;
  • the first light-transmitting structure partially covers the first protruding structure and has a second protruding structure.
  • the width of the strip structure ranges from 50 microns to 500 microns.
  • the display panel also includes:
  • the barrier dam is located at the edge of the base substrate, and the orthographic projection of the target pattern on the base substrate is located on the side of the orthographic projection of the barrier dam on the base substrate close to the center of the display panel. .
  • the display panel also includes:
  • a barrier dam is located at the edge of the base substrate, and the target pattern covers the barrier dam.
  • the light-transmitting structure is a color film layer
  • the display panel also includes:
  • a black matrix pattern is located on a base substrate provided with the light-transmitting pattern, the black matrix pattern includes an opening area, and the orthographic projection of the first opening of the light-transmitting layer on the base substrate is located on the The opening area is in an orthographic projection on the base substrate.
  • the light-transmitting layer includes a first area covered by the first light-transmitting structure and a second area not covered by the first light-transmitting structure, and the light-transmitting layer is in the first area.
  • the thickness is greater than the thickness of the light-transmitting layer in the second region.
  • a method of manufacturing a display panel for manufacturing the above-mentioned display panel.
  • the method includes:
  • a light-transmitting layer is formed on a base substrate on which the plurality of light-emitting units are formed.
  • the light-transmitting layer has a plurality of openings, and a first light-emitting unit among the plurality of light-emitting units is on the base substrate. The orthographic projection of the first opening in the plurality of openings on the substrate;
  • the light-transmitting material layer is processed through a patterning process to obtain a light-transmitting pattern.
  • the light-transmitting pattern includes a plurality of light-transmitting structures, and a first light-transmitting structure among the plurality of light-transmitting structures covers the first light-transmitting structure. on an opening and covering at least part of the light-transmitting layer.
  • a display device is provided, and the display device includes the above-mentioned display panel.
  • a method includes a base substrate, a light-emitting unit provided on the base substrate, a light-transmitting layer, and a light-transmitting pattern.
  • the openings on the light-transmitting layer are opposite to the light-emitting unit.
  • the light-transmitting pattern includes a light-transmitting structure.
  • the light structure covers the openings on the light-transmitting layer and covers part of the light-transmitting layer.
  • the light-transmitting structure and the openings on the light-transmitting layer can form a lens-like structure to improve the light extraction efficiency of the display panel.
  • the light-transmitting pattern includes multiple light-transmitting structures instead of a whole-layer structure, the bending property of the display panel will not be reduced, and the problem of poor bending property of the display panel in the related technology is solved, thereby improving the display panel.
  • the bending effect since the light-transmitting pattern includes multiple light-transmitting structures instead of a whole-layer structure, the bending property of the display panel will not be reduced, and the problem of poor bending property of the display panel in the related technology is solved, thereby improving the display panel. The bending effect.
  • the entire light-transmitting layer is formed by forming a flowing film layer through an inkjet printing (ink) process, and then leveling and solidifying the film layer.
  • the thickness of the light-transmitting layer formed by this process is usually Thicker, which in turn results in a thicker overall thickness of the display panel.
  • the patterned light-transmitting pattern includes a plurality of light-transmitting structures. The light-transmitting pattern can be formed through a patterning process without the need for an inkjet printing process, leveling and solidification. , thereby reducing the thickness of the light-transmitting pattern, thereby reducing the overall thickness of the display panel.
  • Figure 1 is a schematic structural diagram of a display panel
  • Figure 2 is a schematic structural diagram of a display panel provided by an embodiment of the present application.
  • Figure 3 is a schematic top structural view of the display panel shown in Figure 2;
  • Figure 4 is another top structural schematic diagram of the display panel shown in Figure 2;
  • Figure 5 is a schematic structural diagram of another display panel provided by an embodiment of the present application.
  • Figure 6 is an enlarged structural schematic diagram of part of the display panel shown in Figure 5;
  • Figure 7 is a schematic structural diagram of a top view of a display panel provided by an embodiment of the present application.
  • Figure 8 is another top structural schematic diagram of a display panel provided by an embodiment of the present application.
  • Figure 9 is a schematic cross-sectional structural diagram of the display panel shown in Figure 8.
  • Figure 10 is another sectional structural schematic diagram of the display panel shown in Figure 8.
  • Figure 11 is a schematic structural diagram of a pixel area in the display panel shown in Figure 8.
  • Figure 12 is a schematic structural diagram of another display panel provided by an embodiment of the present application.
  • Figure 13 is a top view of the first light-transmitting layer in the display panel shown in Figure 12;
  • Figure 14 is a schematic structural diagram of another display panel provided by an embodiment of the present application.
  • Figure 15 is a schematic structural diagram of another display panel provided by an embodiment of the present application.
  • FIG. 16 is a method flow chart of a display panel manufacturing method provided by an embodiment of the present application.
  • FIG 1 is a schematic structural diagram of a display panel.
  • the display panel 10 includes a base substrate 11 and a plurality of light-emitting units located on the base substrate 11 (only one light-emitting unit is shown in Figure 1 for illustration). 12.
  • the first light-transmitting layer 13 and the second light-transmitting layer 14 are provided on the base substrate with a plurality of light-emitting units 12 .
  • the light-emitting unit 12 may include an organic light-emitting diode (OLED).
  • the display panel 10 may include light-emitting units for emitting various colors of light. For example, it may include a red light-emitting unit for emitting red light, a blue light-emitting unit for emitting blue light, and a green light-emitting unit for emitting green light. .
  • the display panel can display images. After the display panel 10 is activated, the light-emitting unit 12 can emit light L, and the light L can emit out of the display panel 10 to realize the image display function.
  • the first light-transmitting layer 13 has an opening 131 facing the light-emitting unit 12.
  • the second light-transmitting layer 14 covers the first light-transmitting layer and fills the opening 131.
  • the material of the first light-transmitting layer 13 refracts
  • the refractive index is smaller than the refractive index of the material of the second light-transmitting layer 14 .
  • the opening 131 of the first light-transmitting layer 13 cooperates with the second light-transmitting layer 14 to form a lens-like structure.
  • the light beam emitted by the light-emitting unit can change direction under the control of this structure, increasing the irradiation to the visible range a. light beam, thereby improving the light extraction efficiency of the display panel.
  • the second light-transmitting layer 14 has a whole-layer structure, which will reduce the bendability of the display panel, resulting in poor bendability of the display panel.
  • the second light-transmitting layer 14 is formed by forming a flowing film layer through an inkjet printing (ink) process, and then leveling and solidifying the film layer.
  • the thickness of the light-transmitting layer formed by this process is usually thicker. This in turn results in the overall thickness of the display panel being thicker.
  • Embodiments of the present application provide a display panel, a display panel manufacturing method, and a display device, which can solve some of the problems existing in the above related technologies.
  • FIG. 2 is a schematic structural diagram of a display panel provided by an embodiment of the present application.
  • the display panel may include:
  • a plurality of light emitting units 22 are located on the base substrate 21 .
  • the first light-transmitting layer 23 is located on the base substrate 21 provided with a plurality of light-emitting units 22.
  • the first light-transmitting layer 23 has a plurality of openings k.
  • the first light-emitting unit 221 of the plurality of light-emitting units 22 is on the substrate.
  • the orthographic projection on the base substrate 21 overlaps with the orthographic projection of the first opening k1 among the plurality of openings k on the base substrate 21 .
  • the light-transmitting pattern 24 is located on the base substrate 21 provided with the first light-transmitting layer 23.
  • the light-transmitting pattern 24 includes a plurality of light-transmitting structures 241, and the first light-transmitting structure 241a of the plurality of light-transmitting structures 241 covers the first light-transmitting structure 241a.
  • the refractive index of the material of the light-transmitting pattern 24 is greater than the refractive index of the material of the first light-transmitting layer 23 .
  • embodiments of the present application provide a method that includes a base substrate, a light-emitting unit provided on the base substrate, a first light-transmitting layer and a light-transmitting pattern, and an opening on the first light-transmitting layer and a light-emitting unit.
  • the light-transmitting pattern includes a light-transmitting structure, which covers the openings on the first light-transmitting layer, and covers part of the first light-transmitting layer and thus the light-transmitting structure and the openings on the first light-transmitting layer.
  • the holes can form a lens-like structure to improve the light extraction efficiency of the display panel.
  • the light-transmitting pattern includes multiple light-transmitting structures instead of a whole-layer structure, the bending property of the display panel will not be reduced, and the problem of poor bending property of the display panel in the related technology is solved, thereby improving the display panel.
  • the bending effect since the light-transmitting pattern includes multiple light-transmitting structures instead of a whole-layer structure, the bending property of the display panel will not be reduced, and the problem of poor bending property of the display panel in the related technology is solved, thereby improving the display panel. The bending effect.
  • the entire first light-transmitting layer is formed by forming a flowing film layer through an inkjet printing process and then leveling and solidifying the film layer.
  • the thickness of the first light-transmitting layer formed by this process Usually thicker, resulting in a thicker overall thickness of the display panel.
  • the patterned light-transmitting pattern includes a plurality of light-transmitting structures. The light-transmitting pattern can be formed through a patterning process without the need for an inkjet printing process, leveling and solidification. , thereby reducing the thickness of the light-transmitting pattern, thereby reducing the overall thickness of the display panel.
  • the opening in the first light-transmitting layer and the light-transmitting structure above can form a structure similar to a double lens, so as to jointly improve the light extraction efficiency of the display panel.
  • the display panel may also include an intermediate layer 27 , which is located between the light-emitting unit 22 and the first light-transmitting layer 23 .
  • the intermediate layer 27 may include multiple film layer structures to achieve various functions such as protecting the light-emitting unit 22 .
  • the middle layer 27 may include an encapsulation layer, a touch layer, an insulation layer, and other structures.
  • FIG. 3 is a schematic top structural view of the display panel shown in FIG. 2 (FIG. 2 may be a cross-sectional view of the display panel shown in FIG. 3 at E-E). It can be seen that a plurality of light-transmitting structures 241 in the light-transmitting pattern 24 are arranged on the display panel, and the first light-transmitting structure may be one or more of the light-transmitting structures. Since the plurality of light-transmitting structures 241 are dispersedly provided in the display panel, the light-transmitting patterns 24 basically do not restrict the bending of the display panel, which can improve the bending property of the display panel. Of course, in an exemplary embodiment, please refer to FIG.
  • FIG. 4 which is another top structural schematic diagram of the display panel shown in FIG. 2 ( FIG. 2 may be a cross-section of the display panel shown in FIG. 4 at E-E Figure), in which multiple light-transmitting structures 241 in the light-transmitting pattern 24 are arranged on the display panel, and the multiple light-transmitting structures 241 are connected to each other, that is, the multiple light-transmitting structures 241 may not be independent structures.
  • the first light-transmitting structure may be one or more of the light-transmitting structures. Since the plurality of light-transmitting structures 241 are dispersedly provided in the display panel, the light-transmitting patterns 24 basically do not restrict the bending of the display panel, which can improve the bending property of the display panel.
  • FIG. 2 Please refer to FIG. 2 .
  • the light-emitting unit 22 when the light-emitting unit 22 emits light, it emits light in various directions within 180 degrees on the side of the base substrate 21 on which the light-emitting unit 22 is disposed.
  • viewers who watch the display panel usually view the display panel in an area directly opposite the display panel 20 , which results in part of the light emitted by the light emitting unit 22 not being directed to the area where the viewers are, resulting in a waste of light.
  • the first opening 231 of the first light-transmitting layer 23 cooperates with the second first light-transmitting layer 14 to form a lens-like structure, and part of the light emitted by the light-emitting unit 22 will illuminate into the first light-transmitting structure 241a located in the first opening 231 and illuminate the hole wall of the first opening 231. Since the refractive index of the material of the first light-transmitting structure 241a is greater than the refraction of the first light-transmitting layer 23 efficiency, and then part of the light beam will be totally reflected on the wall of the hole and directed to the area facing the display panel. In this way, the light extraction efficiency of the display panel can be improved through the structure of the first light-transmitting structure 241a and the first opening 231. .
  • the combination of the first light-emitting unit 221, the first opening k1 and the first light-transmitting structure 241a can improve the light extraction efficiency of the light beam emitted by the first light-emitting unit 221.
  • one or more of the plurality of light-emitting units may be the first light-emitting unit
  • one or more of the plurality of openings may be the first opening
  • one or more of the plurality of light-transmitting structures may be the first opening.
  • One or more light-transmitting structures may be first light-transmitting units.
  • the first light-transmitting layer above one or more light-emitting units does not have openings, or the first light-transmitting layer above one or more light-emitting units may have openings.
  • no light-transmitting structure is provided in the opening, and this is not limited in the embodiments of the present application.
  • each of the plurality of light-emitting units is a first light-emitting unit
  • each of the plurality of openings is a first opening
  • each light-transmitting structure is a first light-transmitting unit, which can further improve the overall luminous efficiency of the display panel.
  • the light-emitting unit 22 and the opening k on the first light-transmitting layer 23 may have a one-to-one correspondence, and the opening k on the first light-transmitting layer 23 and the light-transmitting structure 241 may also have a one-to-one correspondence.
  • the multiple openings and multiple light-transmitting structures on the first light-transmitting layer provided in the embodiments of the present application can form a transparent array (Micro Lens Array, MLA) that can improve the light output efficiency of the display panel.
  • MLA Micro Lens Array
  • FIG. 5 is a schematic structural diagram of another display panel provided by an embodiment of the present application.
  • the first light-transmitting structure 241a includes a first part 1a covering the first light-transmitting layer 23, and a second part 1b located in the first opening k1.
  • the first part 1a is vertically And the height in the first direction f1 away from the base substrate 21 is greater than the height of the second part 1b in the first direction f1. That is to say, the height of the part of the first light-transmitting structure 241a covered on the first light-transmitting layer 23 is greater than the height of the part not covered on the first light-transmitting layer 23 .
  • This height difference may be caused by the first light-transmitting layer 23
  • the first light-transmitting structure 241a is formed by lifting up, or it can be formed through process processing, which is not limited in the embodiment of the present application.
  • the part of the first light-transmitting structure 241a covering the first light-transmitting layer 23 is just at the edge of the first light-transmitting structure 241a, that is, the first light-transmitting structure 241a has a convex edge, and the convex edge can Diverging the light beam to a certain extent can improve the problem of Luminance-decay (L-Decay) of the display panel when the viewing angle increases.
  • the height of the first part 1a in the first direction f1 that is vertical and away from the base substrate 21 is greater than the height of the second part 1b in the first direction f1, which may mean that the height of the first part 1a in the first direction f1
  • the minimum height is greater than the maximum height of the second part 1b in the first direction f1. It may also refer to the maximum height of the first part 1a in the first direction f1 being greater than the maximum height of the second part 1b in the first direction f1. , or it may also mean that the average height of the first part 1a in the first direction f1 is greater than the average height of the second part 1b in the first direction f1. This is not limited in the embodiment of the present application.
  • the top surface m1 of the first portion 1 a of the first light-transmitting structure 241 a includes an arcuate surface that is convex in a direction away from the base substrate 21 .
  • the convex arc surface can further improve the light scattering ability of the first part 1a, thereby improving the improvement effect on the problem that the light output brightness of the display panel attenuates when the viewing angle increases.
  • the convex arc surface may be a structure formed by the action of the first light-transmitting layer 23 pushing up the first light-transmitting structure 241a and the properties of the material of the light-transmitting structure, or may be formed by process processing. structure, the embodiment of the present application does not limit this.
  • the display panel further includes a second light-transmitting layer 28 located above the light-transmitting pattern and made of a material with a smaller refractive index than the light-transmitting pattern.
  • the material of the second light-transmitting layer 28 may be optical glue (Optically Clear Adhesive, OCA).
  • Figure 6 is an enlarged structural schematic diagram of a partial area (area q1) of the display panel shown in Figure 5, in which the side m2 of the first part 1a faces the opening.
  • the center of the hole k is a slope inclined in the direction f2, and the slope angle c1 of the side surface m2 of the first part 1a is greater than or equal to 50 degrees.
  • the side m2 is the interface between the first light-transmitting structure and the upper structure.
  • the refractive index of the upper structure can be smaller than the first light-transmitting structure, and the inclined side m2 can adjust the deflection direction of the light beam. To improve the light extraction efficiency of the display panel.
  • a surface that is tilted in one direction may mean that the first side and the second side of the surface are arranged along this direction, where the first side and the second side are Two opposite sides, the first side is located on the side of the second side away from the base substrate.
  • the slope angle c1 of the side surface m2 of the first part 1a ranges from 70 degrees to 80 degrees.
  • the slope angle c1 is within this range, the light extraction efficiency of the display panel can be further improved.
  • the hole wall m3 of the opening k of the first light-transmitting layer 23 is inclined in the direction f3 away from the center of the hole, that is, the opening can be in the shape of a trumpet with a larger top and a smaller bottom.
  • the opening of this structure The direction of the light beam emitted by the light-emitting unit can be easily adjusted to improve the light extraction efficiency.
  • the slope angle c2 of the hole wall m3 is greater than the total reflection critical angle of the interface between the light-transmitting pattern 24 and the first light-transmitting layer 23 .
  • the opening k is filled with a light-transmitting structure, and the hole wall of the opening k is the interface between the first light-transmitting layer and the light-transmitting structure.
  • the slope angle c2 of the hole wall m3 is greater than the light-transmitting pattern 24 and the first light-transmitting structure. Under the structure of the total reflection critical angle of the interface of layer 23, more light beams can be totally reflected at the interface, thereby improving the light extraction efficiency of the display panel.
  • the first light-transmitting layer 23 includes a first area x1 covered by the first light-transmitting structure 241a and a second area x1 not covered by the first light-transmitting structure 241a.
  • the thickness h1 of the first light-transmitting layer 23 in the first area x1 is greater than the thickness h2 of the first light-transmitting layer 23 in the second area x2.
  • Such a structure may be formed by a pretreatment (Descum) process performed after forming the light-transmitting pattern 24 .
  • the light-transmitting pattern 24 may be a pattern formed through a patterning process after forming an entire light-transmitting film layer on the first light-transmitting layer 23.
  • the above-mentioned pre-processing process is used to remove the light-transmitting film layer that has not been cleaned.
  • the display panel further includes: a target pattern 25 located on the base substrate provided with the first light-transmitting layer 23 , and the orthographic projection of the target pattern 25 on the base substrate 21 surrounds the light-transmitting pattern 24 on the base substrate 21 Outside the orthographic projection on.
  • This flat structure is used to balance the thickness difference between the area where the light-transmitting pattern is provided in the display panel and the edge area where the display panel is not provided with the light-transmitting pattern, so as to reduce the mura phenomenon (a kind of uneven brightness of the display panel) in the light-transmitting pattern near the edge. uniformity, causing various traces) and other problems.
  • the structure of the target pattern 25 may include at least two types.
  • the target pattern 25 includes a plurality of block structures, and in another structure, the target pattern 25 includes a strip structure.
  • the display panel has an effective display area AA
  • the light-transmitting pattern 24 is located in the effective display area AA
  • the target pattern (25) includes at least one block structure group 251
  • One block structure group 251 includes a plurality of block structures 2a arranged along the edge of the effective display area AA outside the effective display area AA. That is, a block structure group 251 can surround the effective display area AA.
  • the target pattern 25 includes at least two block structure groups 251 , and the at least two block structure groups 251 are sequentially arranged in a direction away from the center of the display panel.
  • multiple block structure groups can form multiple circles (which may not be closed circles) in the effective display area AA to improve the balance effect on thickness differences and further reduce the impact of the mura phenomenon.
  • the block structure 2a can be called a dummy pixel.
  • the shape of the block structure 2a may be the same as or different from the light-transmitting structure in the effective display area AA, and the embodiment of the present application does not limit this.
  • Figure 8 is a schematic structural diagram of another top view of the display panel provided by the embodiment of the present application (the top view shows the enlarged structure of the display panel at area P. diagram).
  • the display panel has an effective display area AA
  • the light-transmitting pattern 24 is located in the effective display area AA
  • the target pattern 25 includes a strip structure 252.
  • the strip structure 252 is outside the effective display area AA and extends along the edge of the effective display area AA. cloth.
  • the strip structure 252 can perform a similar function to the block structure group described above. This strip structure can be called a dummy strip.
  • the width of the strip structure 252 ranges from 50 microns to 500 microns.
  • the strip structure 252 within this width range can improve the balance effect on the thickness difference on the basis of convenience and manufacturing, thereby further reducing the mura phenomenon. Impact.
  • the width of the strip structure may refer to the size of the strip structure perpendicular to the extension direction.
  • the target pattern 25 includes at least two strip structures 252, and the at least two strip structures 252 are sequentially arranged outside the effective display area AA in a direction away from the center of the display panel. That is to say, multiple strip structures 252 can form multiple circles (which may not be closed circles) in the effective display area AA to improve the balancing effect on thickness differences and further reduce the impact of the mura phenomenon.
  • the display panel may have a wiring area q4 for connecting lines (such as flexible circuit boards (Flexible Printed Circuit, FPC) and integrated circuits (Integrated Circuit, IC), etc.), and the target pattern 25 may not be set in the wiring area q4 to avoid It has an impact on the structure in wiring area q4.
  • lines such as flexible circuit boards (Flexible Printed Circuit, FPC) and integrated circuits (Integrated Circuit, IC), etc.
  • FIG. 9 is a schematic cross-sectional structural diagram of the display panel shown in FIG. 8 (the cross-sectional position is D-D).
  • the target pattern 25 and the light-transmitting pattern 24 have the same layer structure. That is, the target pattern 25 may be a patterned structure of the same material formed in one patterning process as the light-transmitting pattern 24 , thus saving the number of patterning processes.
  • the light-transmitting pattern 24 may be formed of a negative photoresist material, and the formation process of the light-transmitting pattern 24 may include coating a photoresist material layer, and exposing the photoresist material layer; development.
  • the display panel further includes: a barrier dam 26 located at the edge of the substrate substrate, an orthographic projection of the target pattern 25 on the substrate substrate 21 , the barrier dam 26 located on the edge of the substrate
  • the orthographic projection on the substrate 21 is on the side close to the center of the display panel. Since the area outside the barrier dam has less influence on the display of the display panel, the target pattern 25 can be disposed between the barrier dam 26 and the effective display area AA.
  • the barrier dam may have multiple layers. In the embodiment of the present application, the target pattern 25 may be disposed between the barrier dam closest to the center of the display panel (that is, the innermost barrier dam) and the effective display area AA.
  • Figure 9 shows a structure in which the barrier dam is located on the first light-transmitting layer 23, but the barrier dam can also be located at other locations.
  • Figure 10 is another view of the display panel shown in Figure 8.
  • a schematic diagram of a cross-sectional structure (the cross-section position is D-D).
  • the barrier dam 26 is located between the first light-transmitting layer 23 and the intermediate layer 27 and lifts the first light-transmitting layer 23 .
  • the target pattern can also be covered on the barrier dam, or the flat layer pattern can be covered on the barrier dam, and the inner edge of the flat layer is located between the barrier dam and the effective display area.
  • the outer side is located at the cutting edge of the display panel, which is not limited in the embodiment of the present application.
  • Figure 11 is a schematic structural diagram of a pixel area in the display panel shown in Figure 8.
  • the pixel area includes three light-emitting units.
  • the shapes of the three light-emitting units may be different, and the corresponding three light-transmitting structures 241 of different shapes may correspondingly cover the three light-emitting units.
  • Figure 12 is a schematic structural diagram of another display panel provided by an embodiment of the present application.
  • the display panel also includes a passivation layer pas and an insulating layer j1 provided on the base substrate 21, a thin film transistor tft, and an anode.
  • optical adhesive layer oca thin film transistor tft and anode s1 is electrically connected, the anode s1 is electrically connected to the light-emitting unit 22 (the light-emitting unit 22 here is a structure including an electroluminescent layer), and the optical adhesive layer oca covers the light-transmitting pattern, which can play a certain flattening effect.
  • the optical adhesive layer oca may also be provided with other structures, such as protective film layers, etc., which are not limited in the embodiments of the present application.
  • the thin film transistor tft may include an active layer t1, a source-drain layer sd, a gate electrode g, and other structures.
  • the display panel may further include a touch layer tc, which may be located between the light-transmitting layer 23 and the second chemical vapor deposition layer CVD2 to implement the touch function.
  • the touch layer tc may include a first touch metal layer tc1, a second touch metal layer tc2, and an intermediate insulating layer tr located between the first touch metal layer tc1 and the second touch metal layer tc2.
  • the display panel may also include a first protruding structure t1.
  • the first protruding structure tq is located in the opening k of the first light-transmitting layer 23.
  • the first protruding structure t1 may also be used for The light beam emitted by the light-emitting unit 22 is refracted to improve the light extraction efficiency of the display panel.
  • the first light-transmitting structure 241a partially covers the first protruding structure t1 and has a second protruding structure t2.
  • the second protruding structure t2 can also be used to refract the light beam emitted by the light-emitting unit 22 to improve the light extraction efficiency of the display panel.
  • Figure 13 is a top view of the first light-transmitting layer 23 in the display panel shown in Figure 12. It can be seen from Figure 13 that the first protruding structure t1 can be across The opening k has a strip-shaped structure (that is, the two ends of the strip-shaped protruding structure t1 can be connected to the two opposite hole walls of the opening k respectively). Figure 13 shows the first protrusion.
  • the structure t1 and the first light-transmitting layer 23 are of the same layer structure, but the embodiment of the present application is not limited to this.
  • the first protruding structure can also be a structure located at the center of the opening k, or
  • the structure may be circular, rectangular, rhombus, etc., and may be a non-same-layer structure or a same-layer structure as the first light-transmitting layer 23 , which is not limited in the embodiments of the present application.
  • the display panel provided in the above embodiments may be a display panel applying efficiency enhancement structure (Ehanced efficiency structure, EES) technology.
  • EES enhanced efficiency structure
  • FIG. 14 is a schematic structural diagram of another display panel provided by an embodiment of the present application, in which the light-transmitting structure 241 is a color filter layer.
  • the display panel also includes: a black matrix (BM) pattern 26 located on the base substrate 21 provided with the light-transmitting pattern 24.
  • the black matrix pattern 26 includes an opening area q3, and the orthographic projection of the light-emitting unit 22 on the base substrate is located in the opening. Area q3 is in orthographic projection on the base substrate 21 .
  • Figure 15 is a schematic structural diagram of another display panel provided by an embodiment of the present application.
  • the display panel also includes an insulating layer pas provided on the base substrate 21, a thin film transistor tft, an anode s1, and a pixel.
  • Definition layer pdl, support structure ps, first chemical vapor deposition (CVD) layer CVD1, inkjet printing layer IJP, second chemical vapor deposition layer CVD2, optical adhesive layer oca, thin film transistor tft and anode s1 are electrically connected , the anode s1 is electrically connected to the light-emitting unit 22 (the light-emitting unit 22 here is a structure including an electroluminescent layer), and the optical adhesive layer oca covers the light-transmitting pattern, which can play a certain flattening effect.
  • the optical adhesive layer oca may also be provided with other structures, such as protective film layers, etc., which are not limited in the embodiments of the present application.
  • the thin film transistor tft may include an active layer t1, a source-drain layer sd, a gate electrode g, and other structures.
  • the display panel may also include a protruding structure tq.
  • the protruding structure tq is located in the opening k of the first light-transmitting layer 23.
  • the protruding structure tq may also be used to illuminate the light beam emitted by the light-emitting unit 22. Realize the effect of refraction to improve the light extraction efficiency of the display panel.
  • the protruding structure tq can be a strip-shaped structure across the opening k (that is, the two ends of the strip-shaped protruding structure tq can be connected to the two opposite hole walls of the opening k respectively), or,
  • the protruding structure may also be a structure located at the center of the opening k, and may be in a circular, rectangular, rhombus or other shapes, which are not limited in the embodiments of the present application.
  • Figure 15 shows a top black matrix type display panel, but the display panel provided by the embodiment of the present application can also be a bottom black matrix type display panel.
  • the black matrix pattern can be located on The first light-transmitting layer is close to the side of the light-emitting unit.
  • the display panel shown in Figure 15 may be a display panel that applies the technology of forming a color film layer (CFon EL, COE) on a thin-film encapsulated organic electroluminescent device.
  • CFon EL color film layer
  • the above embodiments provide a variety of structures where the light-emitting units are located.
  • the display panel provided by the embodiments of the present application may include multiple light-emitting units, and the structures at these light-emitting units may include at least one of the light-emitting units provided in the above embodiments.
  • the structure of the place may be included.
  • a display panel which includes a base substrate, a light-emitting unit provided on the base substrate, a first light-transmitting layer, and a light-transmitting pattern.
  • the opening is opposite to the light-emitting unit, and the light-transmitting pattern includes a light-transmitting structure.
  • the light-transmitting structure covers the opening on the first light-transmitting layer, and covers part of the first light-transmitting layer and then the light-transmitting structure and the first light-transmitting layer.
  • the openings on the light-transmitting layer can form a lens-like structure to improve the light extraction efficiency of the display panel.
  • the light-transmitting pattern includes multiple light-transmitting structures instead of a whole-layer structure, the bending property of the display panel will not be reduced, and the problem of poor bending property of the display panel in the related technology is solved, thereby improving the display panel.
  • the bending effect since the light-transmitting pattern includes multiple light-transmitting structures instead of a whole-layer structure, the bending property of the display panel will not be reduced, and the problem of poor bending property of the display panel in the related technology is solved, thereby improving the display panel. The bending effect.
  • Figure 16 is a method flow chart of a display panel manufacturing method provided by an embodiment of the present application. This method can be used to manufacture any display panel provided by the above embodiments. The method can include the following steps:
  • Step 1301 Obtain the base substrate.
  • Step 1302 Form multiple light-emitting units on the base substrate.
  • Step 1303 Form a first light-transmitting layer on a base substrate on which a plurality of light-emitting units are formed.
  • the first light-transmitting layer has a plurality of openings, and the first light-emitting unit among the plurality of light-emitting units is on the base substrate.
  • Orthographic projection the openings located in the plurality of openings are in the orthographic projection on the substrate.
  • Step 1304 Form a light-transmitting material layer on the base substrate on which the first light-transmitting layer is formed.
  • the refractive index of the material of the light-transmitting material layer is greater than the refractive index of the material of the first light-transmitting layer.
  • the light-transmitting material layer can be formed on the base substrate on which the first light-transmitting layer is formed through a coating process. Compared with inkjet printing, the coating process can achieve the effect of reducing the thickness of the light-transmitting material layer.
  • Step 1305 Process the light-transmitting material layer through a patterning process to obtain a light-transmitting pattern.
  • the light-transmitting pattern includes a plurality of light-transmitting structures.
  • the first light-transmitting structure among the plurality of light-transmitting structures covers the opening, and at least Cover part of the first light-transmitting layer.
  • the material of the light-transmitting material layer may be a photoresist material, and the light-transmitting material layer is processed through a patterning process to obtain a light-transmitting pattern.
  • the process may include exposing and developing the light-transmitting material layer.
  • the display panel After obtaining the light-transmitting pattern, in order to remove the light-transmitting material layer that may remain on the display panel, the display panel can be pre-processed. During the pre-treatment, due to the etching resistance of the first light-transmitting layer, the display panel is not removed.
  • the thickness of the portion covered by the light-transmitting pattern may be smaller than the thickness of the portion covered by the light-transmitting pattern to form a structure as shown in Figure x.
  • inventions of the present application provide a method for manufacturing a display panel.
  • the display panel includes a base substrate, a light-emitting unit provided on the base substrate, a first light-transmitting layer and a light-transmitting pattern.
  • the openings on the light layer are opposite to the light-emitting units.
  • the light-transmitting pattern includes a light-transmitting structure.
  • the light-transmitting structure covers the openings on the first light-transmitting layer and covers part of the first light-transmitting layer and thus the light-transmitting structure.
  • the openings on the first light-transmitting layer can form a lens-like structure to improve the light extraction efficiency of the display panel.
  • the light-transmitting pattern includes multiple light-transmitting structures instead of a whole-layer structure, the bending property of the display panel will not be reduced, and the problem of poor bending property of the display panel in the related technology is solved, thereby improving the display panel.
  • the bending effect since the light-transmitting pattern includes multiple light-transmitting structures instead of a whole-layer structure, the bending property of the display panel will not be reduced, and the problem of poor bending property of the display panel in the related technology is solved, thereby improving the display panel. The bending effect.
  • the entire first light-transmitting layer is formed by forming a flowing film layer through an inkjet printing process and then leveling and solidifying the film layer.
  • the thickness of the first light-transmitting layer formed by this process Usually thicker, resulting in a thicker overall thickness of the display panel.
  • the patterned light-transmitting pattern includes a plurality of light-transmitting structures. The light-transmitting pattern can be formed through a patterning process without the need for an inkjet printing process, leveling and solidification. , thereby reducing the thickness of the light-transmitting pattern, thereby reducing the overall thickness of the display panel.
  • embodiments of the present application also provide a display device, which includes any display panel provided in the above embodiments.
  • the display device may include mobile phones, tablet computers, desktop computers, notebook computers, game consoles, smart wearable devices, televisions, advertising machines and other devices with display functions. Since the display device has the display panel provided by the above-mentioned embodiments, it will also have the beneficial effects of the above-mentioned display panels. For details, reference can be made to the above-mentioned embodiments, and the embodiments of this application will not be described again here.
  • At least one of A and B in this application is only an association relationship describing associated objects, indicating that there can be three relationships.
  • at least one of A and B can mean: A alone exists, and at the same time
  • at least one of A, B and C means that seven relationships can exist, which can mean: A exists alone, B exists alone, C exists alone, A and B exist at the same time, A and C exist at the same time, and both exist at the same time.
  • C and B seven situations A, B and C exist at the same time.
  • At least one of A, B, C and D means that fifteen relationships can exist, which can mean: A exists alone, B exists alone, C exists alone, D exists alone, A and B exist simultaneously, and at the same time A and C exist, A and D exist simultaneously, C and B exist simultaneously, D and B exist simultaneously, C and D exist simultaneously, A, B and C exist simultaneously, A, B and D exist simultaneously, A and C exist simultaneously and D, B, C and D exist at the same time, and A, B, C and D exist at the same time, these are fifteen situations.
  • first and second are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.
  • plurality refers to two or more than two, unless expressly limited otherwise.

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Abstract

提供一种显示面板、显示面板的制造方法以及显示装置。显示面板(20)包括衬底基板(21)以及在衬底基板(21)上设置的发光单元(22)、透光层(23)以及透光图案(24)，透光层(23)上的开孔(k1)与发光单元(22)相对，透光图案(24)中包括透光结构(241)，透光结构(241)覆盖在透光层(23)上的开孔(k1)上，且覆盖部分透光层(23)进而透光结构(241)以及透光层(23)上的开孔(k1)能够构成类似透镜的结构，以提高显示面板(20)的出光效率，由于透光图案(24)包括多个透光结构(241)，并非整层结构，进而不会降低显示面板(20)的弯折性，解决了相关技术中显示面板(20)的弯折性较差的问题，实现了提高显示面板(20)的弯折性的效果。

Description

显示面板、显示面板的制造方法以及显示装置 技术领域
本申请涉及显示技术领域，特别涉及一种显示面板、显示面板的制造方法以及显示装置。
背景技术
显示面板是一种能够实现图像显示功能的组件。
目前的显示面板包括衬底基板、位于衬底基板上的多个发光单元、设置在多个发光单元上方的第一透光层以及第二透光层，第一透光层上具有开孔，该开孔正对发光单元，第二透光层通过喷墨工艺形成，第二透光层填充第一透光层的开孔，进而在该开孔处形成类似透镜的结构以提升显示面板的出光效率。
但是，上述显示面板的弯折性较差。
发明内容
本申请实施例提供了一种显示面板、显示面板的制造方法以及显示装置。所述技术方案如下：
根据本申请实施例的一方面，提供一种显示面板，所述显示面板包括：
衬底基板；
位于所述衬底基板上的多个发光单元；
位于设置有所述多个发光单元的衬底基板上的透光层，所述透光层上具有多个开孔，所述多个发光单元中的第一发光单元在所述衬底基板上的正投影，与所述多个开孔中的第一开孔在所述衬底基板上的正投影重叠；
位于设置有所述透光层的衬底基板上的透光图案，所述透光图案包括多个透光结构，所述多个透光结构中的第一透光结构覆盖在所述第一开孔上，且至少覆盖部分所述透光层，所述透光图案的材料的折射率大于所述透光层的材料的折射率。
可选地，所述第一透光结构包括覆盖在所述透光层上的第一部分，以及位于所述第一开孔中的第二部分，所述第一部分在垂直且远离所述衬底基板的第 一方向上的高度大于所述第二部分在所述第一方向上的高度。
可选地，所述第一透光结构的第一部分的顶面包括向远离所述衬底基板的方向凸起的弧面。
可选地，所述第一部分的侧面为朝向所述第一开孔的中心的方向倾斜的斜面，且所述第一部分的侧面的坡度角大于或者等于50度。
可选地，所述第一部分的侧面的坡度角的范围为70度～80度。
可选地，所述透光层的第一开孔的孔壁朝向远离所述第一开孔中心的方向倾斜，且所述孔壁的坡度角大于所述透光图案和所述透光层的交界面的全反射临界角。
可选地，所述显示面板具有有效显示区以及位于所述有效显示区外的周边区，所述透光图案位于所述有效显示区中；
所述显示面板还包括：
位于设置有所述发光单元的衬底基板上的目标图案，所述目标图案位于所述周边区中，且所述目标图案的材料的折射率大于所述第一透光层的材料的折射率。
可选地，所述目标图案与所述透光图案为同层结构。
可选地，所述目标图案包括至少一个块状结构组，一个所述块状结构组包括在所述有效显示区外沿所述有效显示区的边缘排布的多个块结构。
可选地，所述目标图案包括至少两个所述块状结构组，至少两个所述块状结构组沿远离所述显示面板的中心的方向依次排布。
可选地，所述目标图案包括条状结构，所述条状结构在所述有效显示区外沿所述有效显示区的边缘延伸排布。
可选地，所述目标图案包括至少两条所述条状结构，至少两条所述条状结构在所述有效显示区外沿远离所述显示面板的中心的方向依次排布。
可选地，所述块结构的尺寸与所述透光结构的尺寸相同。
可选地，所述显示面板还包括第一凸起结构，所述第一凸起结构位于所述第一透光层的开孔中；
所述第一透光结构覆盖在所述第一凸起结构上部分具有第二凸起结构。
可选地，所述条状结构的宽度范围为50微米～500微米。
可选地，所述显示面板还包括：
位于所述衬底基板边缘的阻挡坝，所述目标图案在所述衬底基板上的正投 影，位于所述阻挡坝在所述衬底基板上的正投影靠近所述显示面板中心的一侧。
可选地，所述显示面板还包括：
位于所述衬底基板边缘的阻挡坝，所述目标图案覆盖在所述阻挡坝上。
可选地，所述透光结构为彩膜层；
所述显示面板还包括：
位于设置有所述透光图案的衬底基板上的黑矩阵图案，所述黑矩阵图案包括开口区，所述透光层的第一开孔在所述衬底基板上的正投影位于所述开口区在所述衬底基板上的正投影中。
可选地，所述透光层包括被所述第一透光结构覆盖的第一区域以及未被所述第一透光结构覆盖的第二区域，所述透光层在所述第一区域的厚度大于所述透光层在所述第二区域的厚度。
根据本申请实施例的另一方面，提供一种显示面板的制造方法，用于制造上述的显示面板，所述方法包括：
获取衬底基板；
在所述衬底基板上形成多个发光单元；
在形成有所述多个发光单元的衬底基板上形成透光层，所述透光层上具有多个开孔，所述多个发光单元中的第一发光单元在所述衬底基板上的正投影，位于所述多个开孔中的第一开孔在所述衬底基板上的正投影中；
在形成有所述透光层的衬底基板上形成透光材料层，所述透光材料层的材料的折射率大于所述透光层的材料的折射率；
通过构图工艺对所述透光材料层进行处理，以得到透光图案，所述透光图案包括多个透光结构，所述多个透光结构中的第一透光结构覆盖在所述第一开孔上，且至少覆盖部分所述透光层。
根据本申请实施例的另一方面，提供一种显示装置，所述显示装置包括上述的显示面板。
本申请实施例提供的技术方案带来的有益效果至少包括：
提供了一种包括衬底基板以及在衬底基板上设置的发光单元、透光层以及透光图案，透光层上的开孔与发光单元相对，透光图案中包括透光结构，该透光结构覆盖在透光层上的开孔上，且覆盖部分透光层进而该透光结构以及透光 层上的开孔能够构成类似透镜的结构，以提高显示面板的出光效率。由于透光图案包括多个透光结构，而并非是整层结构，进而不会降低显示面板的弯折性，解决了相关技术中显示面板的弯折性较差的问题，实现了提高显示面板的弯折性的效果。
另外，相关技术中整层的透光层是由喷墨打印(ink)工艺形成了流动的膜层后，由该膜层流平并凝固后形成，此种工艺形成的透光层的厚度通常较厚，进而会导致显示面板的整体厚度较厚。而本申请实施例提供的显示面板中，图案化的透光图案包括多个透光结构，该透光图案可以通过构图工艺来形成，而以无需通过喷墨打印工艺以及流平并凝固而形成，进而便能够缩小透光图案的厚度，以降低显示面板的整体厚度。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是一种显示面板的结构示意图；
图2是本申请实施例提供的一种显示面板的结构示意图；
图3是图2所示的显示面板的俯视结构示意图；
图4是图2所示的显示面板的另一俯视结构示意图；
图5是本申请实施例提供的另一种显示面板的结构示意图；
图6是图5所示的显示面板中部分区域的放大结构示意图；
图7是本申请实施例提供的显示面板的一种俯视结构示意图；
图8是图本申请实施例提供的显示面板的另一种俯视结构示意图；
图9是图8所示的显示面板的一种剖面结构示意图；
图10是图8所示的显示面板的另一种剖面结构示意图；
图11是图8所示显示面板中一个像素区域的结构示意图；
图12是本申请实施例提供的另一种显示面板的结构示意图；
图13是图12所示的显示面板中第一透光层的一种俯视图；
图14是本申请实施例提供的另一种显示面板的结构示意图；
图15是本申请实施例提供的另一种显示面板的结构示意图；
图16是本申请实施例提供的一种显示面板的制造方法的方法流程图。
通过上述附图，已示出本申请明确的实施例，后文中将有更详细的描述。这些附图和文字描述并不是为了通过任何方式限制本申请构思的范围，而是通过参考特定实施例为本领域技术人员说明本申请的概念。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
图1是一种显示面板的结构示意图，该显示面板10包括衬底基板11、位于衬底基板11上的多个发光单元(图1仅示出了一个发光单元为例进行说明)12、位于设置有多个发光单元12的衬底基板上的第一透光层13以及第二透光层14。
其中，发光单元12可以包括有机发光二极管(Organic Light-Emitting Diode，OLED)。显示面板10可以包括用于发出各种色光的发光单元，示例性的，可以包括用于发出红光的红色发光单元、用于发出蓝光的蓝色发光单元以及用于发出绿光的绿色发光单元。通过这能够发出各种色光的发光单元，该显示面板即可以进行图像的显示。在该显示面板10启动后，发光单元12可以发出光线L，该光线L可以射出显示面板10，以实现图像显示的功能。
第一透光层13上具有正对发光单元12的开孔131，第二透光层14覆盖在第一透光层上，且填充该开孔131，第一透光层13的材料的折射率小于第二透光层14的材料的折射率。第一透光层13的开孔131与第二透光层14配合，能够形成类似透镜的结构，发光单元发出的光束能够在该结构的控制下改变方向，增多照射向可视范围a内的光束，进而提升显示面板的出光效率。
但是，上述显示面板中，第二透光层14为整层结构，会降低显示面板的弯折性，导致显示面板的弯折性较差。另外，第二透光层14是由喷墨打印(ink)工艺形成了流动的膜层后，由该膜层流平并凝固后形成，此种工艺形成的透光层的厚度通常较厚，进而会导致显示面板的整体厚度较厚。
本申请实施例提供了一种显示面板、显示面板的制造方法以及显示装置，能够解决上述相关技术中存在的一些问题。
图2是本申请实施例提供的一种显示面板的结构示意图，该显示面板可以包括：
衬底基板21。
位于衬底基板21上的多个发光单元22。
位于设置有多个发光单元22的衬底基板21上的第一透光层23，第一透光层23上具有多个开孔k，多个发光单元22中的第一发光单元221在衬底基板21上的正投影，与多个开孔k中的第一开孔k1在衬底基板21上的正投影重叠。
位于设置有第一透光层23的衬底基板21上的透光图案24，透光图案24包括多个透光结构241，多个透光结构241中的第一透光结构241a覆盖在第一开孔k1上，且至少覆盖部分第一透光层23，透光图案24的材料的折射率大于第一透光层23的材料的折射率。
综上所述，本申请实施例提供了一种包括衬底基板以及在衬底基板上设置的发光单元、第一透光层以及透光图案，第一透光层上的开孔与发光单元相对，透光图案中包括透光结构，该透光结构覆盖在第一透光层上的开孔上，且覆盖部分第一透光层进而该透光结构以及第一透光层上的开孔能够构成类似透镜的结构，以提高显示面板的出光效率。由于透光图案包括多个透光结构，而并非是整层结构，进而不会降低显示面板的弯折性，解决了相关技术中显示面板的弯折性较差的问题，实现了提高显示面板的弯折性的效果。
另外，相关技术中整层的第一透光层是由喷墨打印工艺形成了流动的膜层后，由该膜层流平并凝固后形成，此种工艺形成的第一透光层的厚度通常较厚，进而会导致显示面板的整体厚度较厚。而本申请实施例提供的显示面板中，图案化的透光图案包括多个透光结构，该透光图案可以通过构图工艺来形成，而以无需通过喷墨打印工艺以及流平并凝固而形成，进而便能够缩小透光图案的厚度，以降低显示面板的整体厚度。
本申请实施例提供的显示面板中，第一透光层中的开孔与上方的透光结构可以构成一个类似于双透镜的结构，以共同提高显示面板的出光效率。
此外，显示面板还可以包括中间层27，该中间层27位于发光单元22和第一透光层23之间，该中间层27可以包括多个膜层结构，以实现保护发光单元22等各种功能。示例性的，中间层27可以包括封装层、触控层绝缘层等结构。
如图3所示，图3是图2所示的显示面板的一种俯视结构示意图(图2可以是图3所示的显示面板在E-E处的剖面图)。可以看到，透光图案24中的多 个透光结构241在显示面板上排布，第一透光结构可以是其中的一个或多个透光结构。由于多个透光结构241分散设置于显示面板中，进而该透光图案24基本不会对显示面板的弯折造成限制，这可以提高显示面板的弯折性。当然，在一种示例性的实施例中，请参考图4，图4是图2所示的显示面板的另一俯视结构示意图(图2可以是图4所示的显示面板在E-E处的剖面图)，其中，透光图案24中的多个透光结构241在显示面板上排布，且这多个透光结构241互相连接，也即是多个透光结构241可以并非是独立的结构。第一透光结构可以是其中的一个或多个透光结构。由于多个透光结构241分散设置于显示面板中，进而该透光图案24基本不会对显示面板的弯折造成限制，这可以提高显示面板的弯折性。
请参考图2，图2所示的显示面板中，发光单元22发光时，会向衬底基板21设置有发光单元22的一侧180度范围内的各个方向发射光线。但是，观看显示面板的观众通常位于显示面板20正对区域观看显示面板，这就导致发光单元22发出的光线有一部分不会射向观众所在的区域中，导致光线的浪费。但本申请实施例提供的显示面板中，第一透光层23的第一开孔231与第二第一透光层14配合，能够形成类似透镜的结构，发光单元22发出的部分光线会照射到位于第一开孔231中的第一透光结构241a中，并照射到第一开孔231的孔壁上，由于第一透光结构241a材料的折射率大于第一透光层23的折射率，进而部分光束会在该孔壁上发生全反射，而射向显示面板正对的区域，如此便能够通过第一透光结构241a以及第一开孔231的结构，提升显示面板的出光效率。
上述实施例中提供显示面板中，第一发光单元221、第一开孔k1以及第一透光结构241a的组合可以提升第一发光单元221发出的光束的出光效率。上述显示面板中，多个发光单元中的一个或多个发光单元可以为第一发光单元，多个开孔中的一个或多个开孔可以为第一开孔，多个透光结构中的一个或多个透光结构可以为第一透光单元。当然，显示面板中也可以存在一个或多个发光单元的上方的第一透光层未设置有开孔，或者，可以存在一个或多个发光单元的上方的第一透光层存在开孔，但开孔中并未设置透光结构，本申请实施例对此不进行限制。
在一种示例性的实施例中，多个发光单元中的每个发光单元均为第一发光单元，多个开孔中的每个开孔均为第一开孔，多个透光结构中的每个透光结构 均为第一透光单元，如此可以进一步提升显示面板的整体发光效率。
在一种示例性的实施例中，发光单元22和第一透光层23上的开孔k可以为一一对应的关系，第一透光层23上的开孔k和透光结构241也可以为一一对应的关系，本申请实施例对此不进行限制。
本申请实施例中提供的第一透光层上的多个开孔和多个透光结构可以构成一种能够提升显示面板出光效率的透明阵列(Micro Lens Array，MLA)。
如图5所示，图5是本申请实施例提供的另一种显示面板的结构示意图。在图5所示的显示面板中，第一透光结构241a包括覆盖在第一透光层23上的第一部分1a，以及位于第一开孔k1中的第二部分1b，第一部分1a在垂直且远离衬底基板21的第一方向f1上的高度大于第二部分1b在第一方向f1上的高度。也即是第一透光结构241a覆盖在第一透光层23上的部分的高度大于未覆盖第一透光层23上的部分的高度，此种高度差可以是由第一透光层23将第一透光结构241a顶起而形成，也可以是通过工艺处理形成，本申请实施例对此不进行限制。
第一透光结构241a覆盖在第一透光层23上的部分正好位于第一透光结构241a的边缘，也即是第一透光结构241a具有一个凸起的边缘，该凸起的边缘可以对光束进行一定程度的发散，可以改善显示面板的出光亮度在视角增大时衰减(Luminance-decay，L-Decay)的问题。
需要说明的是，第一部分1a在垂直且远离衬底基板21的第一方向f1上的高度大于第二部分1b在第一方向f1上的高度，可以是指第一部分1a在第一方向f1上的最小高度，大于第二部分1b在第一方向f1上的最大高度，也可以是指第一部分1a在第一方向f1上的最大高度，大于第二部分1b在第一方向f1上的最大高度，或者，也可以是指第一部分1a在第一方向f1上的平均高度，大于第二部分1b在第一方向f1上的平均高度，本申请实施例对此不进行限制。
在一种示例性的实施例中，第一透光结构241a的第一部分1a的顶面m1包括向远离衬底基板21的方向凸起的弧面。该凸起的弧面可以进一步提升第一部分1a对于光线的散射能力，以提升对于显示面板的出光亮度在视角增大时衰减的问题的改善效果。该凸起的弧面可以是在第一透光层23将第一透光结构241a顶起的作用以及透光结构的材料的性质的作用下而形成的结构，也可以是通过工艺处理而形成的结构，本申请实施例对此不进行限制。
可选地，该显示面板还包括第二透光层28，该第二透光层28位于透光图案上方，由折射率小于透光图案的材料制成。示例性的，该第二透光层28的材料可以为光学胶(Optically Clear Adhesive，OCA)。
在一种示例性的实施例中，如图6所示，图6是图5所示的显示面板中，部分区域(区域q1)的放大结构示意图，其中，第一部分1a的侧面m2为朝向开孔k的中心的方向f2倾斜的斜面，且第一部分1a的侧面m2的坡度角c1大于或者等于50度。此种斜面结构下，侧面m2处为第一透光结构与上方结构的交界面，上方结构的折射率可以小于第一透光结构，进而该倾斜的侧面m2可以对光束的偏转方向进行调节，以提高显示面板的出光效率。本申请实施例中所涉及的一个面向一个方向(可以称为目标方向)倾斜，可以是指该面的第一边以及第二边沿该方向排布，其中，第一边和第二边为该面相对的两条边，第一边位于第二边远离衬底基板的一侧。
可选地，第一部分1a的侧面m2的坡度角c1的范围为70度～80度。坡度角c1在该范围内时，可以进一步提升显示面板的出光效率。
可选地，第一透光层23的开孔k的孔壁m3朝向远离开孔中心的方向f3倾斜，也即是开孔可以呈一个上大下小的喇叭状，此种结构的开孔可以便于对发光单元发出的光束的方向进行调整，以提升出光效率。且孔壁m3的坡度角c2大于透光图案24和第一透光层23的交界面的全反射临界角。也即是坡度角c2>arcsin(n1/n2)，n1为第一透光层的材料的折射率，n2为透光结构的材料的折射率。开孔k中填充有透光结构，进而开孔k的孔壁处为第一透光层和透光结构的交界面，在孔壁m3的坡度角c2大于透光图案24和第一透光层23的交界面的全反射临界角的结构下，可以有更多的光束能够在该交界面发生全反射，进而便能够提升显示面板的出光效率。
在一种示例性的实施例中，请参考图6，其中，第一透光层23包括被第一透光结构241a覆盖的第一区域x1以及未被第一透光结构241a覆盖的第二区域x2，第一透光层23在第一区域x1的厚度h1大于第一透光层23在第二区域x2的厚度h2。
此种结构可以是在形成透光图案24后进行的预处理(Descum)工艺形成的。透光图案24可以是在第一透光层23上形成整层的透光膜层后，通过构图工艺处理而形成的图案，上述预处理工艺用于去除未被清除干净的透光膜层。
请参考图7，图7是本申请实施例提供的显示面板的一种俯视结构示意图(该 俯视图中示出了显示面板在区域P处的放大结构示意图)。其中，该显示面板还包括：位于设置有第一透光层23的衬底基板上的目标图案25，目标图案25在衬底基板21上的正投影围绕在透光图案24在衬底基板21上的正投影外。该平坦结构用于平衡显示面板中设置有透光图案的区域和显示面板未设置有透光图案的边缘区域的厚度差，以降低靠近边缘的透光图案出现mura现象(一种显示面板亮度不均匀，造成各种痕迹的现象)等各种问题。
本申请实施例中，目标图案25的结构至少可以包括两种，其中一种结构中，目标图案25包括多个块状结构，另一种结构中，目标图案25包括条形结构。
对于目标图案的块状结构的方案，请参考图7，其中，显示面板具有有效显示区AA，透光图案24位于有效显示区AA中，目标图案(25)包括至少一个块状结构组251，一个块状结构组251包括在有效显示区AA外沿有效显示区AA的边缘排布的多个块结构2a。也即是一个块状结构组251可以围绕在有效显示区AA外。在一种示例性的实施例中，目标图案25包括至少两个块状结构组251，至少两个块状结构组251沿远离显示面板的中心的方向依次排布。也即是多个块状结构组可以在有效显示区AA围成多圈(可以不是封闭的圈)，以提升对于厚度差的平衡效果，进而进一步降低mura现象的影响。其中，块状结构2a可以称为假像素(dummy pixel)。块状结构2a的形状可以与有效显示区AA内的透光结构相同或者不同，本申请实施例对此不进行限制。
对于目标图案的条状结构的方案，请参考图8，图8是图本申请实施例提供的显示面板的另一种俯视结构示意图(该俯视图中示出了显示面板在区域P处的放大结构示意图)。其中，显示面板具有有效显示区AA，透光图案24位于有效显示区AA中，目标图案25包括条状结构252，条状结构252在有效显示区AA外，沿有效显示区AA的边缘延伸排布。该条状结构252可以实现与上述块状结构组类似的功能。该条状结构可以称为dummy条。
可选地，该条状结构252的宽度范围为50微米～500微米，该宽度范围内的条状结构252在便与制造的基础上，可以提升对于厚度差的平衡效果，进而进一步降低mura现象的影响。需要说明的是，条形结构的宽度可以是指条形结构在垂直于延伸方向上的尺寸。
在一种示例性的实施例中，目标图案25包括至少两条条状结构252，至少两条条状结构252在有效显示区AA外沿远离显示面板的中心的方向依次排布。也即是多条条状结构252可以在有效显示区AA围成多圈(可以不是封闭的圈)， 以提升对于厚度差的平衡效果，进而进一步降低mura现象的影响。
显示面板可以具有接线区q4，用于连接线路(如柔性电路板(Flexible Printed Circuit，FPC)以及集成电路(Integrated Circuit，IC)等)，目标图案25可以未设置于该接线区q4，以避免对接线区q4中的结构产生影响。
在一种示例性的实施例中，请参考图9，图9是图8所示的显示面板的一种剖面结构示意图(剖面位置为D-D处)。其中，目标图案25与透光图案24为同层结构。也即是目标图案25可以是与透光图案24在一次构图工艺中形成的相同材料的图案化结构，如此可以节省构图工艺的次数。
本申请实施例中，透光图案24可以由负性光刻胶材料形成，进而该透光图案24的形成过程可以包括涂覆光刻胶材料层，以及对该光刻胶材料层进行曝光以及显影。
在一种示例性的实施例中，请参考图9，显示面板还包括：位于衬底基板边缘的阻挡坝26，目标图案25在衬底基板21上的正投影，位于阻挡坝26在衬底基板21上的正投影靠近显示面板中心的一侧。由于阻挡坝外区域对于显示面板的显示的影响较小，进而可以将目标图案25设置在阻挡坝26以及有效显示区域AA之间。阻挡坝可以有多层，本申请实施例中，可以将目标图案25设置在最靠近显示面板中心的阻挡坝(也即是最内层的阻挡坝)和有效显示区域AA之间。图9示出的是阻挡坝位于第一透光层23上的结构，但该阻挡坝还可以位于其他位置，示例性的，请参考图10，图10是图8所示的显示面板的另一种剖面结构示意图(剖面位置为D-D处)。其中，阻挡坝26位于第一透光层23和中间层27之间，并将第一透光层23顶起。
当然，在另一种示例性的实施例中，目标图案也可以覆盖在阻挡坝上，或者平坦层图案可以覆盖在阻挡坝上，且平坦层内侧的边缘位于阻挡坝和有效显示区之间，外侧位于显示面板的切割边缘处，本申请实施例对此不进行限制。
请参考图11，图11是图8所示显示面板中一个像素区域的结构示意图。该像素区域中包括三个发光单元，这三个发光单元的形状可以不同，对应的三个形状不同的透光结构241可以对应的覆盖在这三个发光单元的上方。
请参考图12，图12是本申请实施例提供的另一种显示面板的结构示意图，该显示面板还包括在衬底基板21上设置的钝化层pas以及绝缘层j1，薄膜晶体管tft，阳极s1，像素定义层pdl，支撑结构ps，第一化学气相沉积(chemical vapor deposition，CVD)层CVD1，喷墨打印层IJP，第二化学气相沉积层CVD2， 光学胶层oca，薄膜晶体管tft与阳极s1电连接，阳极s1与发光单元22电连接(此处的发光单元22为包括电致发光层的结构)，光学胶层oca覆盖在透光图案上，可以起到一定的平坦作用。光学胶层oca上还可以设置有其它的结构，如保护膜层等，本申请实施例对此不进行限制。薄膜晶体管tft中可以包括有源层t1、源漏极层sd以及栅极g等结构。此外，该显示面板还可以包括触控层tc，该触控层可以位于透光层23以及第二化学气相沉积层CVD2之间，用以实现触控功能。示例性的，该触控层tc可以包括第一触控金属层tc1、第二触控金属层tc2以及位于第一触控金属层tc1和第二触控金属层tc2之间的中间绝缘层tr。
此外，在该显示面板中，还可以包括第一凸起结构t1，该第一凸起结构tq位于第一透光层23的开孔k中，该第一凸起结构t1也可以用于对发光单元22发出的光束实现折射的作用，以提升显示面板的出光效率。此外，第一透光结构241a覆盖在第一凸起结构t1上部分具有第二凸起结构t2。该第二凸起结构t2也能够用于对发光单元22发出的光束实现折射的作用，以提升显示面板的出光效率。
示例性的，请参考图13，图13是图12所示的显示面板中，第一透光层23的一种俯视图，从图13可以看出，该第一凸起结构t1可以是横跨开孔k的一个条状的结构(也即是条状的凸起结构t1的两端可以分别与开孔k的相对的两个孔壁连接)，图13示出的是该第一凸起结构t1和第一透光层23为同层结构的情况，但本申请实施例对此不进行限制，示例性的，该第一凸起结构也可以是位于开孔k中心的一个结构，可以呈圆形、矩形、菱形等形状，该结构可以与第一透光层23为非同层结构或者同层结构，本申请实施例对此不进行限制。
上述实施例所提供的显示面板可以为一种应用了效率增强结构(Ehanced efficiency structure，EES)技术的显示面板。
请参考图14，图14是本申请实施例提供的另一种显示面板的结构示意图，其中，透光结构241为彩膜层。
该显示面板还包括：位于设置有透光图案24的衬底基板21上的黑矩阵(BM)图案26，黑矩阵图案26包括开口区q3，发光单元22在衬底基板上的正投影位于开口区q3在衬底基板21上的正投影中。
请参考图15，图15是本申请实施例提供的另一种显示面板的结构示意图，其中，该显示面板还包括在衬底基板21上设置的绝缘层pas，薄膜晶体管tft，阳极s1，像素定义层pdl，支撑结构ps，第一化学气相沉积(chemical vapor  deposition，CVD)层CVD1，喷墨打印层IJP，第二化学气相沉积层CVD2，光学胶层oca，薄膜晶体管tft与阳极s1电连接，阳极s1与发光单元22电连接(此处的发光单元22为包括电致发光层的结构)，光学胶层oca覆盖在透光图案上，可以起到一定的平坦作用。光学胶层oca上还可以设置有其它的结构，如保护膜层等，本申请实施例对此不进行限制。薄膜晶体管tft中可以包括有源层t1、源漏极层sd以及栅极g等结构。
此外，在该显示面板中，还可以包括凸起结构tq，该凸起结构tq位于第一透光层23的开孔k中，该凸起结构tq也可以用于对发光单元22发出的光束实现折射的作用，以提升显示面板的出光效率。该凸起结构tq可以是横跨开孔k的一个条状的结构(也即是条状的凸起结构tq的两端可以分别与开孔k的相对的两个孔壁连接)，或者，该凸起结构也可以是位于开孔k中心的一个结构，可以呈圆形、矩形、菱形等形状，本申请实施例对此不进行限制。
图15示出的是一种顶黑矩阵类型的显示面板，但本申请实施例提供的显示面板还可以是底黑矩阵类型的显示面板，底黑矩阵类型的显示面板中，黑矩阵图案可以位于第一透光层靠近发光单元的一侧。
图15所示的显示面板可以是一种应用了在薄膜封装的有机电致发光器件上形成彩膜层(CFon EL，COE)技术的显示面板。
上述实施例中提供了多种发光单元所在位置处的结构，本申请实施例提供的显示面板中可以包括多个发光单元，这些发光单元处的结构可以包括上述实施例提供的至少一种发光单元处的结构。
综上所述，本申请实施例提供了一种显示面板，该显示面板包括衬底基板以及在衬底基板上设置的发光单元、第一透光层以及透光图案，第一透光层上的开孔与发光单元相对，透光图案中包括透光结构，该透光结构覆盖在第一透光层上的开孔上，且覆盖部分第一透光层进而该透光结构以及第一透光层上的开孔能够构成类似透镜的结构，以提高显示面板的出光效率。由于透光图案包括多个透光结构，而并非是整层结构，进而不会降低显示面板的弯折性，解决了相关技术中显示面板的弯折性较差的问题，实现了提高显示面板的弯折性的效果。
图16是本申请实施例提供的一种显示面板的制造方法的方法流程图，该方法可以用于制造上述实施例提供的任一显示面板，该方法可以包括下面几个步 骤：
步骤1301、获取衬底基板。
步骤1302、在衬底基板上形成多个发光单元。
步骤1303、在形成有多个发光单元的衬底基板上形成第一透光层，第一透光层上具有多个开孔，多个发光单元中的第一发光单元在衬底基板上的正投影，位于多个开孔中的开孔在衬底基板上的正投影中。
步骤1304、在形成有第一透光层的衬底基板上形成透光材料层，透光材料层的材料的折射率大于第一透光层的材料的折射率。
可以通过涂覆工艺在形成有第一透光层的衬底基板上形成透光材料层，相较于喷墨打印的方式，涂覆工艺可以实现降低透光材料层的厚度的效果。
步骤1305、通过构图工艺对透光材料层进行处理，以得到透光图案，透光图案包括多个透光结构，多个透光结构中的第一透光结构覆盖在开孔上，且至少覆盖部分第一透光层。
其中，透光材料层的材料可以为光刻胶材料，进而通过构图工艺对透光材料层进行处理，以得到透光图案的过程可以包括对透光材料层进行曝光以及显影。
在得到透光图案之后，为了清除显示面板上可能残留的透光材料层，可以对显示面板进行预处理，在进行预处理时，由于第一透光层的抗刻蚀能力的问题，未被透光图案覆盖的部分的厚度可能会小于被透光图案覆盖的部分的厚度，以形成如图x所示的结构。
综上所述，本申请实施例提供了一种显示面板的制造方法，该显示面板包括衬底基板以及在衬底基板上设置的发光单元、第一透光层以及透光图案，第一透光层上的开孔与发光单元相对，透光图案中包括透光结构，该透光结构覆盖在第一透光层上的开孔上，且覆盖部分第一透光层进而该透光结构以及第一透光层上的开孔能够构成类似透镜的结构，以提高显示面板的出光效率。由于透光图案包括多个透光结构，而并非是整层结构，进而不会降低显示面板的弯折性，解决了相关技术中显示面板的弯折性较差的问题，实现了提高显示面板的弯折性的效果。
另外，相关技术中整层的第一透光层是由喷墨打印工艺形成了流动的膜层后，由该膜层流平并凝固后形成，此种工艺形成的第一透光层的厚度通常较厚，进而会导致显示面板的整体厚度较厚。而本申请实施例提供的显示面板中，图 案化的透光图案包括多个透光结构，该透光图案可以通过构图工艺来形成，而以无需通过喷墨打印工艺以及流平并凝固而形成，进而便能够缩小透光图案的厚度，以降低显示面板的整体厚度。
此外，本申请实施例还提供一种显示装置，显示装置包括上述实施例提供的任意一个显示面板。该显示装置可以包括手机，平板电脑，台式电脑，笔记本型计算机，游戏机，智能穿戴设备，电视机，广告机等各种具有显示功能的装置。由于该显示装置具有了上述实施例共提供的显示面板，进而也会具有上述显示面板所具有的有益效果，具体可以参考上述实施例，本申请实施例在此不再赘述。
本申请中术语“A和B的至少一种”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和B的至少一种，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。同理，“A、B和C的至少一种”表示可以存在七种关系，可以表示：单独存在A，单独存在B，单独存在C，同时存在A和B，同时存在A和C，同时存在C和B，同时存在A、B和C这七种情况。同理，“A、B、C和D的至少一种”表示可以存在十五种关系，可以表示：单独存在A，单独存在B，单独存在C，单独存在D，同时存在A和B，同时存在A和C，同时存在A和D，同时存在C和B，同时存在D和B，同时存在C和D，同时存在A、B和C，同时存在A、B和D，同时存在A、C和D，同时存在B、C和D，同时存在A、B、C和D，这十五种情况。
需要指出的是，在附图中，为了图示的清晰可能夸大了层和区域的尺寸。而且可以理解，当元件或层被称为在另一元件或层“上”时，它可以直接在其他元件上，或者可以存在中间的层。另外，可以理解，当元件或层被称为在另一元件或层“下”时，它可以直接在其他元件下，或者可以存在一个以上的中间的层或元件。另外，还可以理解，当层或元件被称为在两层或两个元件“之间”时，它可以为两层或两个元件之间唯一的层，或还可以存在一个以上的中间层或元件。通篇相似的参考标记指示相似的元件。
在本申请中，术语“第一”、“第二”仅用于描述目的，而不能理解为指示 或暗示相对重要性。术语“多个”指两个或两个以上，除非另有明确的限定。
以上所述仅为本申请的可选实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (20)

  1. 一种显示面板，其特征在于，所述显示面板包括：
    衬底基板；
    位于所述衬底基板上的多个发光单元；
    位于设置有所述多个发光单元的衬底基板上的第一透光层，所述第一透光层上具有多个开孔，所述多个发光单元中的第一发光单元在所述衬底基板上的正投影，与所述多个开孔中的第一开孔在所述衬底基板上的正投影重叠；
    位于设置有所述第一透光层的衬底基板上的透光图案，所述透光图案包括多个透光结构，所述多个透光结构中的第一透光结构覆盖在所述第一开孔上，且至少覆盖部分所述第一透光层，所述透光图案的材料的折射率大于所述第一透光层的材料的折射率。
  2. 根据权利要求1所述的显示面板，其特征在于，所述第一透光结构包括覆盖在所述第一透光层上的第一部分，以及位于所述第一开孔中的第二部分，所述第一部分在垂直且远离所述衬底基板的第一方向上的高度大于所述第二部分在所述第一方向上的高度。
  3. 根据权利要求2所述的显示面板，其特征在于，所述第一透光结构的第一部分的顶面包括向远离所述衬底基板的方向凸起的弧面。
  4. 根据权利要求1所述的显示面板，其特征在于，所述第一透光层的第一开孔的孔壁朝向远离所述第一开孔中心的方向倾斜，且所述孔壁的坡度角大于所述透光图案和所述第一透光层的交界面的全反射临界角。
  5. 根据权利要求1-4任一所述的显示面板，其特征在于，所述显示面板具有有效显示区以及位于所述有效显示区外的周边区，所述透光图案位于所述有效显示区中；
    所述显示面板还包括：
    位于设置有所述发光单元的衬底基板上的目标图案，所述目标图案位于所述周边区中，且所述目标图案的材料的折射率大于所述第一透光层的材料的折 射率。
  6. 根据权利要求5所述的显示面板，其特征在于，所述目标图案与所述透光图案为同层结构。
  7. 根据权利要求5所述的显示面板，其特征在于，所述目标图案包括至少一个块状结构组，一个所述块状结构组包括在所述有效显示区外沿所述有效显示区的边缘排布的多个块结构。
  8. 根据权利要求7所述的显示面板，其特征在于，所述目标图案包括至少两个所述块状结构组，至少两个所述块状结构组沿远离所述显示面板的中心的方向依次排布。
  9. 根据权利要求7所述的显示面板，其特征在于，所述块结构的尺寸与所述透光结构的尺寸相同。
  10. 根据权利要求5所述的显示面板，其特征在于，所述目标图案包括条状结构，所述条状结构在所述有效显示区外沿所述有效显示区的边缘延伸排布。
  11. 根据权利要求10所述的显示面板，其特征在于，所述目标图案包括至少两条所述条状结构，至少两条所述条状结构在所述有效显示区外沿远离所述显示面板的中心的方向依次排布。
  12. 根据权利要求1-4任一所述的显示面板，其特征在于，所述显示面板还包括第一凸起结构，所述第一凸起结构位于所述第一透光层的开孔中；
    所述第一透光结构覆盖在所述第一凸起结构上部分具有第二凸起结构。
  13. 根据权利要求5所述的显示面板，其特征在于，所述显示面板还包括：
    位于所述衬底基板边缘的阻挡坝，所述目标图案在所述衬底基板上的正投 影，位于所述阻挡坝在所述衬底基板上的正投影靠近所述显示面板中心的一侧。
  14. 根据权利要求5所述的显示面板，其特征在于，所述显示面板还包括：
    位于所述衬底基板边缘的阻挡坝，所述目标图案覆盖在所述阻挡坝上。
  15. 根据权利要求1-4任一所述的显示面板，其特征在于，所述透光结构为彩膜层；
    所述显示面板还包括：
    位于设置有所述透光图案的衬底基板上的黑矩阵图案，所述黑矩阵图案包括开口区，所述第一透光层的第一开孔在所述衬底基板上的正投影位于所述开口区在所述衬底基板上的正投影中。
  16. 根据权利要求1-4任一所述的显示面板，其特征在于，所述第一透光层包括被所述第一透光结构覆盖的第一区域以及未被所述第一透光结构覆盖的第二区域，所述第一透光层在所述第一区域的厚度大于所述第一透光层在所述第二区域的厚度。
  17. 根据权利要求2所述的显示面板，其特征在于，所述第一部分的侧面为朝向所述第一开孔的中心的方向倾斜的斜面，且所述第一部分的侧面的坡度角大于或者等于50度。
  18. 根据权利要求17所述的显示面板，其特征在于，所述第一部分的侧面的坡度角的范围为70度～80度。
  19. 一种显示面板的制造方法，其特征在于，用于制造权利要求1-18任一所述的显示面板，所述方法包括：
    获取衬底基板；
    在所述衬底基板上形成多个发光单元；
    在形成有所述多个发光单元的衬底基板上形成第一透光层，所述第一透光层上具有多个开孔，所述多个发光单元中的第一发光单元在所述衬底基板上的 正投影，与所述多个开孔中的第一开孔在所述衬底基板上的正投影重叠；
    在形成有所述第一透光层的衬底基板上形成透光材料层，所述透光材料层的材料的折射率大于所述第一透光层的材料的折射率；
    通过构图工艺对所述透光材料层进行处理，以得到透光图案，所述透光图案包括多个透光结构，所述多个透光结构中的第一透光结构覆盖在所述第一开孔上，且至少覆盖部分所述第一透光层。
  20. 一种显示装置，其特征在于，所述显示装置包括权利要求1-18任一所述的显示面板。
PCT/CN2022/109079 2022-07-29 2022-07-29 显示面板、显示面板的制造方法以及显示装置 WO2024021053A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210210557A1 (en) * 2020-01-08 2021-07-08 Samsung Display Co., Ltd. Display device and manufacturing method thereof
CN114068843A (zh) * 2021-11-05 2022-02-18 湖北长江新型显示产业创新中心有限公司 显示面板和显示装置
CN114220933A (zh) * 2021-12-13 2022-03-22 武汉华星光电半导体显示技术有限公司 显示面板及显示装置
CN114447252A (zh) * 2022-01-30 2022-05-06 京东方科技集团股份有限公司 显示面板及显示装置
CN217035670U (zh) * 2022-01-04 2022-07-22 京东方科技集团股份有限公司 显示面板以及显示装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210210557A1 (en) * 2020-01-08 2021-07-08 Samsung Display Co., Ltd. Display device and manufacturing method thereof
CN114068843A (zh) * 2021-11-05 2022-02-18 湖北长江新型显示产业创新中心有限公司 显示面板和显示装置
CN114220933A (zh) * 2021-12-13 2022-03-22 武汉华星光电半导体显示技术有限公司 显示面板及显示装置
CN217035670U (zh) * 2022-01-04 2022-07-22 京东方科技集团股份有限公司 显示面板以及显示装置
CN114447252A (zh) * 2022-01-30 2022-05-06 京东方科技集团股份有限公司 显示面板及显示装置

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