WO2024159558A1 - 显示面板及显示装置 - Google Patents

显示面板及显示装置 Download PDF

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Publication number
WO2024159558A1
WO2024159558A1 PCT/CN2023/076494 CN2023076494W WO2024159558A1 WO 2024159558 A1 WO2024159558 A1 WO 2024159558A1 CN 2023076494 W CN2023076494 W CN 2023076494W WO 2024159558 A1 WO2024159558 A1 WO 2024159558A1
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WO
WIPO (PCT)
Prior art keywords
layer
opening
pixel
touch
display panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/076494
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English (en)
French (fr)
Inventor
罗志猛
张春鹏
鲜于文旭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Filing date
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Publication of WO2024159558A1 publication Critical patent/WO2024159558A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Definitions

  • the present invention relates to the technical field of display panel manufacturing, and in particular to a display panel and a display device.
  • OLED display technology has gradually become the mainstream technology for the new generation of display applications with its excellent response speed, high color gamut, low power consumption and thinness.
  • the application performance of OLED display panels has also been further expanded. It is not only required to have a good display effect, but also to have good touch performance.
  • an embedded (in-cell) touch integration solution is usually used for preparation.
  • the touch driving electrode and the signal electrode are usually arranged in the same layer to realize the transmission of touch signals and control signals.
  • the electrode layers with different functions are arranged in the same layer, there is a serious noise signal interference between different control signals, which in turn affects the normal display effect and touch effect of the panel. It is not conducive to further improving the comprehensive performance of the display panel and the display device.
  • an embodiment of the present invention provides a display panel and a display device, so as to effectively improve the display panel prepared in the prior art, in which the control signals in different electrode layers are prone to interfere with each other, thereby reducing the display effect and touch performance of the display panel, and effectively improve the overall performance of the display panel.
  • an embodiment of the present invention provides a display panel and a display device, wherein the display panel includes:
  • a pixel definition layer comprising patterned pixel openings and touch openings arranged between a plurality of the pixel openings
  • a first undercut layer is disposed on the pixel definition layer
  • a second undercut layer is disposed on the first undercut layer, and the pixel opening and the touch opening at least penetrate the first undercut layer and the second undercut layer;
  • the inner wall of the second undercut layer protrudes beyond the inner wall of the first undercut layer on the side away from the pixel definition layer, and in the touch opening, the inner wall of the first undercut layer on the side close to the pixel definition layer protrudes beyond the inner wall of the pixel definition layer;
  • the material of the first undercut layer is set to be a metal material
  • the material of the second undercut layer is set to be an inorganic material
  • the display panel further includes a display electrode and a touch electrode, the pixel opening is formed with a first filling cavity, the touch opening is formed with a second filling cavity,
  • the display electrode is disposed in the pixel opening and extends to the side wall of the first filling cavity and is electrically connected to the first bottom cutting layer.
  • the touch electrode is disposed in the touch opening and contacts the side wall of the second filling cavity.
  • the second undercut layer includes a first extension portion protruding from the first undercut layer to form a first opening corresponding to the pixel opening, and the first undercut layer includes a second extension portion protruding from the pixel definition layer;
  • the projection of the first extension portion on the bottom surface of the first filling cavity partially overlaps with the projection of the display electrode on the bottom surface of the first filling cavity, and the projection of the second extension portion on the bottom surface of the second filling cavity partially overlaps with the projection of the touch electrode on the bottom surface of the second filling cavity.
  • the length of the first extension portion is set to 0.5um-1um
  • the length of the second extension portion is set to 0.5um-2um.
  • the display panel further includes a light-emitting layer, and the light-emitting layer is correspondingly disposed in the pixel opening and the touch opening;
  • the display electrode is arranged on the light-emitting layer and electrically connected to the light-emitting layer.
  • the area of the light-emitting layer is smaller than the area of the bottom surface of the second filling cavity, and the touch electrode layer covers the light-emitting layer.
  • the display panel further comprises an array substrate and a connection electrode disposed on the array substrate, the pixel definition layer at least covers a portion of the connection electrode, and the connection electrode is electrically connected to the array substrate through a via hole;
  • the touch electrode is electrically connected to the connection electrode.
  • the touch electrode includes a connecting portion close to a side wall of the second filling cavity, and a covering portion connected to the connecting portion;
  • the covering portion covers the light-emitting layer
  • the connecting portion is arranged on a side close to the inner wall of the second filling cavity and is electrically connected to the connecting electrode.
  • the opening width corresponding to the pixel opening is greater than or equal to the opening width corresponding to the touch opening.
  • a display panel comprising:
  • a pixel definition layer comprising patterned pixel openings and touch openings arranged between a plurality of the pixel openings
  • a first undercut layer is disposed on the pixel definition layer
  • a second undercut layer is disposed on the first undercut layer, and the pixel opening and the touch opening at least penetrate the first undercut layer and the second undercut layer;
  • the inner wall of the second bottom cutting layer protrudes beyond the inner wall of the first bottom cutting layer away from the pixel definition layer, and in the touch opening, the inner wall of the first bottom cutting layer close to the pixel definition layer protrudes beyond the inner wall of the pixel definition layer.
  • the display panel further includes a display electrode and a touch electrode, the pixel opening is formed with a first filling cavity, the touch opening is formed with a second filling cavity,
  • the display electrode is disposed in the pixel opening and extends to the side wall of the first filling cavity and is electrically connected to the first bottom cutting layer.
  • the touch electrode is disposed in the touch opening and contacts the side wall of the second filling cavity.
  • the second undercut layer includes a first extension portion protruding from the first undercut layer to form a first opening corresponding to the pixel opening, and the first undercut layer includes a second extension portion protruding from the pixel definition layer;
  • the projection of the first extension portion on the bottom surface of the first filling cavity partially overlaps with the projection of the display electrode on the bottom surface of the first filling cavity, and the projection of the second extension portion on the bottom surface of the second filling cavity partially overlaps with the projection of the touch electrode on the bottom surface of the second filling cavity.
  • the length of the first extension portion is set to 0.5um-1um
  • the length of the second extension portion is set to 0.5um-2um.
  • the display panel further includes a light-emitting layer, and the light-emitting layer is correspondingly disposed in the pixel opening and the touch opening;
  • the display electrode is arranged on the light-emitting layer and electrically connected to the light-emitting layer.
  • the area of the light-emitting layer is smaller than the area of the bottom surface of the second filling cavity, and the touch electrode layer covers the light-emitting layer.
  • the display panel further comprises an array substrate and a connection electrode disposed on the array substrate, the pixel definition layer at least covers a portion of the connection electrode, and the connection electrode is electrically connected to the array substrate through a via hole;
  • the touch electrode is electrically connected to the connection electrode.
  • the touch electrode includes a connecting portion close to a side wall of the second filling cavity, and a covering portion connected to the connecting portion;
  • the covering portion covers the light-emitting layer
  • the connecting portion is arranged on a side close to the inner wall of the second filling cavity and is electrically connected to the connecting electrode.
  • the opening width corresponding to the pixel opening is greater than or equal to the opening width corresponding to the touch opening.
  • the display panel further includes an interlayer dielectric layer, which is continuously disposed on the second undercut layer and fills the inner walls of the first filling cavity and the second filling cavity.
  • the material of the first undercut layer includes any one of Ti, Cu/Ti, Mo, and Al/Mo
  • the material of the second undercut layer includes any one of SiNx, SiO2, and SiON.
  • the display panel includes a plurality of pixel groups arranged in an array, each of the pixel groups includes a plurality of the pixel openings and the touch openings arranged between the pixel openings, and the touch electrodes are arranged in the touch openings;
  • the touch electrodes in different pixel groups are electrically connected.
  • a display device including: a display panel provided in an embodiment of the present application, wherein the display panel includes:
  • a pixel definition layer comprising patterned pixel openings and touch openings arranged between a plurality of the pixel openings
  • a first undercut layer is disposed on the pixel definition layer
  • a second undercut layer is disposed on the first undercut layer, and the pixel opening and the touch opening at least penetrate the first undercut layer and the second undercut layer;
  • the inner wall of the second bottom cutting layer protrudes beyond the inner wall of the first bottom cutting layer away from the pixel definition layer, and in the touch opening, the inner wall of the first bottom cutting layer close to the pixel definition layer protrudes beyond the inner wall of the pixel definition layer.
  • the embodiments of the present application provide a display panel and a display device.
  • the display panel includes a pixel definition layer, a first undercut layer, and a second undercut layer, wherein the pixel definition layer includes a pixel opening and a touch opening, in the pixel opening, the inner wall of the second undercut layer protrudes from the inner wall of the first undercut layer on the side away from the pixel definition layer, and in the touch opening, the inner wall of the first undercut layer on the side close to the pixel definition layer protrudes from the inner wall of the pixel definition layer.
  • a partition undercut structure is formed by making the inner walls of different undercut layers protrude from the inner walls of the film layer in the corresponding opening area in different openings. When different electrode layers are arranged in the partition undercut structure, the different electrode layers can be better separated, effectively preventing interference problems between different electrodes and improving the overall performance of the display panel.
  • FIG1 is a schematic diagram of a film layer structure of a display panel provided in an embodiment of the present application.
  • FIG2 is a schematic plan view of different regions of the display panel provided by the present application.
  • FIG3 is a schematic plan view of another display panel provided by an embodiment of the present application.
  • FIG4 is a schematic diagram of a planar structure of a touch electrode provided in an embodiment of the present application.
  • FIG5 is a top view schematic diagram of the connection of touch electrodes provided in an embodiment of the present application.
  • FIG6 is a schematic diagram of a film layer structure of another display panel provided by the present application.
  • FIG. 7 is a schematic structural diagram of a first undercut structure and a second undercut structure provided in an embodiment of the present application.
  • the touch electrodes and the pixel driving electrodes are usually arranged in the same layer, which results in large noise signals between different electrodes and serious mutual interference, which is not conducive to improving the overall performance of the panel.
  • the embodiments of the present application provide a display panel and a display device to effectively improve the problem of large noise signals and serious mutual interference between different signal lines in the display panel.
  • FIG. 1 is a schematic diagram of a film layer structure of a display panel provided in an embodiment of the present application.
  • the display panel includes: an array substrate and various functional film layers arranged on the array substrate.
  • the array substrate includes a substrate 101, a first insulating layer 102, a first gate insulating layer 103, a second gate insulating layer 104, and a second insulating layer 105.
  • a plurality of thin film transistors such as a thin film transistor 34, are arranged in the array substrate.
  • the thin film transistor 34 includes an active layer 331, a first gate 333, a second gate 334 and a source-drain metal layer 332.
  • the thin film transistor 34 is described as a double-gate structure. Further, it can also be set to a single-gate structure according to actual products, which will not be described here.
  • the active layer 331 is arranged on the substrate 101, the first insulating layer 102 is arranged on the substrate 101 and covers the active layer 331, the first gate 333 is arranged on the first insulating layer 102, and at the same time, the first gate insulating layer 103 is arranged on the first insulating layer 102, and the first gate insulating layer 103 completely covers the first gate 333.
  • the second gate insulating layer 104 is disposed on the first gate insulating layer 103, the second gate 334 is disposed on the first gate insulating layer 103, and the second gate insulating layer 104 completely covers the second gate 334.
  • the second insulating layer 105 is disposed on the second gate insulating layer 104, and the source-drain metal layer 332 is disposed on the second insulating layer 105.
  • a via is provided in the array substrate, and the source-drain metal layer 332 is electrically connected to the active layer 331 below through the via, thereby realizing the transmission of the control signal.
  • the source-drain metal layer 332 of the thin film transistor when the source-drain metal layer 332 of the thin film transistor is provided, the source-drain metal layer 332 is patterned on the second insulating layer 105, and at the corresponding position of the thin film transistor 34, the source-drain metal layer 332 corresponds to its source and drain respectively, and on one side of the thin film transistor 34, the source-drain metal layer 332 can be a metal layer 3321.
  • the thin film transistor in the array substrate when setting the above-mentioned array substrate, can also be set to a bottom gate structure, and other film layers can be the same as the structure in the present application, which will not be repeated here.
  • the display panel further includes a planarization layer 106 and a pixel definition layer 107.
  • the planarization layer 106 is disposed on the second insulating layer 105, and the planarization layer 106 completely covers the source-drain metal layer 332 of the thin film transistor 34.
  • the side of the planarization layer 106 away from the array substrate is set as a plane, such as the plane is set as a horizontal plane. Meanwhile, the pixel definition layer 107 is set on the planarization layer 106, and the pixel definition layer is set on the plane.
  • the pixel definition layer 107 includes a plurality of openings, which are arranged at different positions of the pixel definition layer 107 and do not overlap or interfere with each other.
  • the pixel definition layer 107 includes a pixel opening 51 and a touch opening 52 .
  • the pixel openings 51 may be patterned on the pixel definition layer 107 .
  • the pixel openings 51 may be arranged in an array in the row and column directions of the pixel definition layer 107 .
  • the pixel opening 51 is a light-emitting area of the pixel, and a corresponding light-emitting unit is provided in each pixel opening 51, thereby realizing light-emitting display of the display panel.
  • the touch opening 52 may be disposed at a corresponding position between the plurality of pixel openings 51 , such as the touch opening 52 is disposed at a geometric center formed by the plurality of pixel openings 51 , and each touch opening 52 does not intersect with the pixel opening 51 .
  • the display panel further includes an electrode layer.
  • the electrode layer includes a display electrode 411 and a touch electrode 412.
  • the display electrode 411 is correspondingly disposed in the pixel opening 51
  • the touch electrode 412 is correspondingly disposed in the touch opening 52.
  • the touch electrode 412 is insulated from the display electrode 411.
  • the display panel further includes a first undercut layer 108 and a second undercut layer 109 .
  • the first undercut layer 108 is disposed on the pixel definition layer 107
  • the second undercut layer 109 is disposed on the first undercut layer 108 .
  • the pixel opening 51 and the touch opening 52 at least penetrate the first undercut layer 108 and the second undercut layer 109.
  • the pixel opening 51 and the touch opening 52 penetrate the first undercut layer 108, the second undercut layer 109 and the pixel definition layer 107 at the same time.
  • the display panel further includes a first opening 71 and a second opening 72, a first filling cavity 61, and a second filling cavity 62.
  • the first opening 71 is disposed correspondingly to the pixel opening 51, such as being disposed above the pixel opening 51
  • the second opening 72 is disposed correspondingly to the touch opening 52, such as being disposed above the touch opening 52.
  • the pixel opening 51 is formed with the first filling cavity 61
  • the touch opening 52 is formed with the second filling cavity 62.
  • the first opening 71 and the first filling cavity have the same central axis.
  • the first filling cavity 61 can be composed of a pixel definition layer 107, a first undercut layer 108 and a second undercut layer 109.
  • the inner wall of the second undercut layer 109 protrudes from the inner wall of the first undercut layer 108 away from the pixel definition layer 107, and forms a first undercut structure 32.
  • the inner wall of the first undercut layer 108 close to the pixel definition layer 107 protrudes from the inner wall of the pixel definition layer 107, and forms a second undercut structure 33.
  • the first filling cavity 41 is formed between the second undercut layer 109 corresponding to the upper part of the first undercut structure 32 and the pixel opening 51
  • the second filling cavity 62 is formed between the first undercut layer 108 corresponding to the upper part of the second undercut structure 33 and the touch opening 52.
  • the first undercut structure and the second undercut structure formed between different film layers are arranged at different positions. When different electrodes are arranged at different positions, interference problems between different electrodes can be effectively prevented and the overall performance of the panel can be improved.
  • FIG. 7 is a schematic diagram of the structure of the first undercut structure and the second undercut structure provided in the embodiment of the present application.
  • the first opening 71 can coincide with the central axis of the first filling cavity 61 and the pixel opening 51.
  • the opening diameter of the second undercut layer 109 corresponding to the first opening 71 is smaller than the width of the first filling cavity 61.
  • the second undercut layer 109 corresponding to the first undercut structure 32 includes a first extension portion 443 covering a portion of the first filling cavity 61.
  • the first extension portion 443 protrudes from the first undercut layer 108 to form a first opening corresponding to the pixel opening.
  • the edge of the first undercut layer 108 protrudes beyond the peripheral edges of the pixel definition layer 107 to cover a portion of the touch opening.
  • the first undercut layer 108 corresponding to the second undercut structure 33 includes a second extension portion 444 protruding from the pixel definition layer and covering the second filling cavity 62.
  • the second extension portion 444 covers a portion of the second filling cavity 62.
  • the central axis of the second opening 72 can coincide with the central axis of the second filling cavity 62 and the touch opening 52.
  • the projections of the three can form a concentric circle structure, so that the same film layer and different film layers have good symmetry and ensure the performance of each film layer.
  • the edge of the second opening 72 can be flush with the opening edge of the first undercut layer 108 , thereby ensuring a close fit between the film layers.
  • the opening radius of the first opening 71 is greater than the opening radius of the second opening 72
  • the opening width of the second opening 72 is less than the bottom width of the second filling cavity 62
  • the opening width of the first opening 71 is less than the bottom width of the first filling cavity 61.
  • the bottom width of the first filling cavity 61 can be greater than the bottom width of the pixel opening 51
  • the width of the second filling cavity 62 can be the same as the width of the touch opening 52. This ensures the evaporation effect of the evaporation film layer in different filling cavities and opening areas, and ensures the quality of the film layer.
  • the length of the first extension portion 443 corresponding to the first undercut structure is smaller than the length of the second extension portion 444 corresponding to the second undercut structure, thereby ensuring that the first opening has a larger opening area and ensuring the luminous effect of the pixel unit in the display panel.
  • the display panel further includes a connecting electrode and a light emitting layer 311.
  • the connecting electrode is correspondingly disposed in the pixel opening 51 and the touch opening 52, and the connecting electrode is disposed on the planarization layer 106.
  • the connecting electrode includes a first connecting electrode 211 disposed in the pixel opening 51, and a second connecting electrode 212 disposed in the touch opening 52.
  • the first connection electrode 211 is electrically connected to the source-drain metal layer 332 of the thin film transistor through a via hole
  • the second connection electrode 212 is electrically connected to the metal layer 3321 through a via hole.
  • the light emitting layer 311 is correspondingly disposed on the first connection electrode 211 and the second connection electrode 212 .
  • the display electrode 411 is disposed at the bottom of the first filling cavity 61 and extends to the side wall of the first bottom cut layer 108 corresponding to the filling cavity 61. At the same time, the display electrode 411 is on the light emitting layer 311, and the display electrode 411 is electrically connected to the light emitting layer 311 and the first bottom cut layer 108.
  • the first bottom cut layer 108 can be set to a conductive material, such as any one of Ti, Cu/Ti, Mo, Al/Mo, or other conductive metal materials.
  • the film thickness of the first bottom cutting layer 108 may be greater than the film thickness of the second bottom cutting layer 109.
  • the thickness of the first bottom cutting layer 108 is set to 0.5um-2um.
  • the film thickness of the second bottom cutting layer 109 is set to 0.3um-3um.
  • the thickness of the first bottom cutting layer 108 can be set to 2um, and the thickness of the second bottom cutting layer 109 is set to 1um.
  • the display electrode 411 can be the cathode of the light-emitting layer 311.
  • the display electrode 411 and the first bottom cut layer 108 form a double-layer cathode structure, thereby effectively reducing the cathode impedance of the display panel and effectively improving the performance of the panel.
  • the projection of the first extension portion 443 at the bottom of the first filling cavity 61 partially overlaps with the display electrode 411. That is, the display electrode 411 extends into the projection area corresponding to the first undercut structure and partially overlaps with it. Meanwhile, when the touch electrode is provided, the touch electrode is provided in the touch opening and in contact with the side wall of the second filling cavity. Meanwhile, the touch electrode also completely covers the light-emitting layer.
  • the length of the first extension portion 443 can be set to 0.5um-1um, and the length of the second extension portion 444 can be set to 0.5um-2um.
  • the length of the first extension portion 443 in order to ensure the light-emitting area of the pixel in the pixel opening, in the embodiment of the present application, can be less than the length of the second extension portion 444.
  • the length of the first extension portion 443 is set to 1um, and the length of the second extension portion 444 is set to 1.5um.
  • the light emitting layer 311 is disposed on the second connection electrode 212
  • the touch electrode 412 is electrically disposed on the second connection electrode 212
  • the touch electrode 412 completely covers the light emitting layer 311 .
  • the touch electrode 412 further includes a connecting portion 4123 and a covering portion 4124 connected to the connecting portion 4123.
  • the connecting portion 4123 is disposed on a side close to the side wall of the second filling cavity 62, and is electrically connected to the second connecting electrode 212 at the bottom through the connecting portion 4123, and the covering portion 4124 covers the light emitting layer 311.
  • connection portion 4123 is disposed within the projection area of the second undercut structure, that is, the connection portion 4123 is disposed within the projection area of the second extension portion 444 at the bottom, and the touch electrode 412 can also be formed by a process combining evaporation and sputtering.
  • the touch electrode 412 can be fitted with the side wall of the second filling cavity 62, thereby ensuring the firmness of the touch electrode 412.
  • the display panel includes the first undercut structure 32 and the second undercut structure 33, and the display electrode 411 and the touch electrode 412 are correspondingly arranged in the undercut structures at different positions, the undercut structure can effectively prevent mutual interference between the two electrodes.
  • the two different electrodes when preparing the display electrode 411 and the touch electrode 412, can be prepared in the same layer and under the same preparation evaporation process. After the evaporation is completed, they are sputtered separately to finally form the touch electrode 412 and the display electrode 411 in the embodiment of the present application.
  • the display electrode 411 may have the same thickness as the touch electrode 412 , and the area of the display electrode 411 may be larger than the area of the touch electrode 412 .
  • Figure 2 is a plan view schematic diagram corresponding to different areas of the display panel provided by the present application.
  • a pixel group 37 is taken as an example for explanation.
  • the pixel group includes four pixel openings 51.
  • Each pixel opening 51 can correspond to at least one of a red light-emitting pixel, a blue light-emitting pixel, and a green light-emitting pixel, such as the four pixel openings 51 can correspond to a red light-emitting pixel, a green light-emitting pixel, and two blue light-emitting pixels, respectively.
  • the positional relationship between the pixels is not limited and can be set according to actual conditions.
  • each pixel opening 51 is arranged in a rectangular or circular shape.
  • the size of each pixel opening 51 can be set according to product requirements.
  • a touch opening 52 is provided between the pixel openings 51.
  • the touch opening 52 may be provided between different pixel openings 51, such as at the geometric center of the plurality of pixel openings 51.
  • the opening radius of each pixel opening may be set to 5um-100um. Or it may be set according to the size of the actual product.
  • Fig. 3 is a schematic plan view of another display panel provided in an embodiment of the present application.
  • the touch opening 52 is set to other shapes, such as a diamond shape.
  • the pixel opening shape corresponding to the touch opening 52 can also be set to any one of a circle, a diamond, a square and an ellipse, and the pixel opening 51 can also be set to any one of a circle, a square and a diamond, which will not be repeated here.
  • FIG. 4 is a schematic diagram of the planar structure of the touch electrode provided in the embodiment of the present application.
  • a touch electrode 412 is arranged in each touch opening 52.
  • the touch electrode 412 is electrically connected to the second connection electrode 212, and at the same time, the second connection electrode 212 is electrically connected to the metal layer 3321, and the touch electrode 412 in each touch opening 52 is electrically connected to the corresponding metal layer 3321.
  • the touch electrode 412 can also be connected through the second connection electrode 212 and the first gate or the second gate of the corresponding thin film transistor, so that different touch electrodes 412 are equivalent to being connected to each other through the wire 46. Or it is led to the outside of the display panel through the above-mentioned second connection electrode 212, the first gate and the second gate, and is electrically connected to the external circuit, and finally forms the entire touch electrode of the display panel.
  • the distance between each pixel group can be set to the same distance, or set according to the actual product requirements, which will not be repeated here.
  • FIG. 5 is a top view schematic diagram of the connection of the touch electrode provided in the embodiment of the present application.
  • a plurality of pixel groups 37 set in Figure 4 are correspondingly arranged.
  • the touch electrode can be formed by a plurality of touch units 55 arranged in an array.
  • the touch electrode may include a driving electrode 51 and a sensing electrode 52.
  • the driving electrode 51 and the sensing electrode 52 may be arranged in the same layer, and the driving electrode 51 and the sensing electrode 52 may be arranged alternately in a pattern.
  • adjacent driving electrodes 51 may be electrically connected via a first connecting bridge 511, and adjacent sensing electrodes 52 may be electrically connected via a second connecting bridge 521.
  • the structure of each touch electrode provided in the embodiment of the present application is formed.
  • the orientation of the first connection bridge 511 may be different from the orientation of the second connection bridge 521.
  • the first connection bridge 511 is tilted toward the upper left of the touch control unit, while the second connection bridge 521 is tilted toward the upper right of the touch control unit.
  • the driving electrodes 51 and the sensing electrodes 52 are also electrically connected to the touch integrated circuit correspondingly.
  • the touch electrodes receive the touch signal and implement the touch operation of the display panel according to the control of the touch integrated circuit.
  • FIG6 is a schematic diagram of the film layer structure of another display panel provided by the present application.
  • the display panel also includes an interlayer dielectric layer 110, a first passivation layer 788 and a second passivation layer 789.
  • the interlayer dielectric layer 110 is arranged on the second bottom cut layer 109
  • the first passivation layer 788 is arranged on the interlayer dielectric layer 110
  • the second passivation layer 789 is arranged on the first passivation layer 788.
  • the interlayer dielectric layer 110 and the first passivation layer 788 completely fill the first filling cavity 61 and the second filling cavity 62.
  • the interlayer dielectric layer 110 is in contact with the side walls of the first filling cavity 61 and the second filling cavity 62, and completely covers the above-mentioned film layers.
  • the interlayer dielectric layer 110 and the second passivation layer 789 are inorganic encapsulation layers
  • the first passivation layer 788 is an organic encapsulation layer.
  • the first passivation layer 788 , the second passivation layer 789 and the second undercut layer 109 may be made of the same material, such as inorganic materials, optionally any one of SiNx, SiO 2 and SiON.
  • an embodiment of the present application also provides a display device, which includes a display panel provided in an embodiment of the present application, in which display electrodes and touch electrodes are arranged, and the display electrodes and touch electrodes are arranged in pixel openings and touch openings, respectively.
  • a first undercut structure is arranged in the above-mentioned pixel opening
  • a second undercut structure is arranged in the touch opening.
  • the first undercut structure and the second undercut structure enable electrode layers with different functions to be prepared in the same layer and to be disconnected when preparing each electrode layer. In this way, the insulation between the touch electrode and the display electrode is ensured, and mutual interference between different electrodes is effectively prevented, thereby effectively improving the display effect and touch performance of the display panel and the device, and improving the overall performance of the device.
  • the display panel and its corresponding display device can be any product or component that can display or touch operation, such as a mobile phone, a computer, an electronic paper, a monitor, a laptop computer, a digital photo frame, etc., and its specific type is not specifically limited.

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Abstract

本申请实施例提供一种显示面板及显示装置。包括像素定义层、第一底切层、第二底切层，在像素开口中，第二底切层的内壁突出于第一底切层远离像素定义层一侧的内壁，在触控开口中，第一底切层靠近像素定义层一侧的内壁突出于像素定义层的内壁。以形成不同的隔断底切结构，并防止不同电极之间的干涉问题，提高面板性能。

Description

显示面板及显示装置 技术领域
本发明涉及显示面板的制造技术领域，尤其涉及一种显示面板及显示装置。
 背景技术
随着显示面板制备技术的发展，人们对显示面板及显示装置的显示效果以及综合性能均提出了更高的要求。
柔性有机发光二极管（OLED）显示技术凭借着优异的响应速度、高色域、低功耗以及轻薄等特点，已逐渐成为新一代显示应用的主流技术。同时，OLED显示面板的应用性能也进一步拓展。不仅要求其具有较好的显示效果，同时还具有较好的触控等性能。现有技术中，在制备形成上述OLED显示面板以及实现其触控功能时，通常采用嵌入式（in-cell）触控集成方案来进行制备。通过将触控感应单元周期性的穿插在显示周期内，由于每次触控感应及反应的时间极短，而对应极短的时间人眼不足以分辨，从而实现像素驱动以及显示的双重功能。但是，上述嵌入式的技术方案中，通常将触控驱动电极与信号电极设置在同一层，以实现触控信号以及控制信号的传输作用。但是，由于不同功能的电极层设置在同一层中，不同的控制信号之间存在较严重的噪声信号干扰，进而影响了面板的正常显示效果以及触控效果。不利于显示面板及显示装置综合性能的进一步提高。
因此需要对现有技术中的问题提出解决方法。
 技术问题
综上所述，显示技术中制备形成的显示面板中，其采用内嵌式的方式设置不同的电极层，不同的电极层之间同层设置容易出现较严重的噪声信号的干扰，不利于进一步提高面板的综合性能。
 解决方案
为解决上述问题，本发明实施例提供一种显示面板及显示装置，以有效的改善现有技术中制备形成的显示面板，其内部不同的电极层内的控制信号容易出现相互干扰，进而降低显示面板的显示效果及触控性能的问题，并有效的提高显示面板的综合性能。
为解决上述技术问题，本发明实施例提供一种显示面板及显示装置，该显示面板包括：
像素定义层，包括图案化设置的像素开口以及设置在多个所述像素开口之间的触控开口；
第一底切层，设置于所述像素定义层上，
第二底切层，设置于所述第一底切层上，所述像素开口以及所述触控开口至少贯穿于所述第一底切层和所述第二底切层；
其中，在所述像素开口中，所述第二底切层的内壁突出于所述第一底切层远离所述像素定义层一侧的内壁，所述触控开口中，所述第一底切层靠近所述像素定义层一侧的内壁突出于所述像素定义层的内壁；
其中，所述第一底切层的材料设置为金属材料，所述第二底切层的材料设置为无机材料。
根据本发明一实施例，所述显示面板还包括显示电极与触控电极，所述像素开口形成有第一填充腔，所述触控开口形成有第二填充腔，
其中，所述显示电极设置在所述像素开口内并延伸至所述第一填充腔的侧壁，且与所述第一底切层电性连接，所述触控电极设置在触控开口内并与所述第二填充腔的侧壁接触。
根据本发明一实施例，所述第二底切层包括突出于所述第一底切层的第一延伸部以形成对应于所述像素开口的第一开口，所述第一底切层包括突出于所述像素定义层第二延伸部；
其中，所述第一延伸部在所述第一填充腔底面上的投影与所述显示电极在所述第一填充腔底面上的投影部分重合，所述第二延伸部在所述第二填充腔底面上的投影与所述触控电极在所述第二填充腔底面上的投影部分重合。
根据本发明一实施例，所述第一延伸部的长度设置为0.5um-1um，所述第二延伸部的长度设置为0.5um-2um。
根据本发明一实施例，所述显示面板还包括发光层，所述发光层对应设置在所述像素开口与所述触控开口内；
其中，所述显示电极设置在所述发光层上，并与所述发光层电性连接，在所述触控开口内，所述发光层的面积小于所述第二填充腔底面的面积，且所述触控电极层覆盖所述发光层。
根据本发明一实施例，所述显示面板还包括阵列基板以及设置在所述阵列基板上的连接电极，所述像素定义层至少覆盖部分所述连接电极，且所述连接电极通过过孔与所述阵列基板电性连接；
其中，在所述触控开口内，所述触控电极与所述连接电极电性连接。
根据本发明一实施例，所述触控电极包括靠近所述第二填充腔侧壁一侧的连接部，以及与所述连接部连接的覆盖部；
其中，所述覆盖部覆盖所述发光层，且所述连接部设置在靠近所述第二填充腔的内壁一侧，并与所述连接电极电性连接。
根据本发明一实施例，所述像素开口对应的开口宽度大于或等于所述触控开口对应的开口宽度。
根据本发明实施例的第二方面，还提供一种显示面板，该显示面板包括：
像素定义层，包括图案化设置的像素开口以及设置在多个所述像素开口之间的触控开口；
第一底切层，设置于所述像素定义层上，
第二底切层，设置于所述第一底切层上，所述像素开口以及所述触控开口至少贯穿于所述第一底切层和所述第二底切层；
其中，在所述像素开口中，所述第二底切层的内壁突出于所述第一底切层远离所述像素定义层一侧的内壁，所述触控开口中，所述第一底切层靠近所述像素定义层一侧的内壁突出于所述像素定义层的内壁。
根据本发明一实施例，所述显示面板还包括显示电极与触控电极，所述像素开口形成有第一填充腔，所述触控开口形成有第二填充腔，
其中，所述显示电极设置在所述像素开口内并延伸至所述第一填充腔的侧壁，且与所述第一底切层电性连接，所述触控电极设置在触控开口内并与所述第二填充腔的侧壁接触。
根据本发明一实施例，所述第二底切层包括突出于所述第一底切层的第一延伸部以形成对应于所述像素开口的第一开口，所述第一底切层包括突出于所述像素定义层第二延伸部；
其中，所述第一延伸部在所述第一填充腔底面上的投影与所述显示电极在所述第一填充腔底面上的投影部分重合，所述第二延伸部在所述第二填充腔底面上的投影与所述触控电极在所述第二填充腔底面上的投影部分重合。
根据本发明一实施例，所述第一延伸部的长度设置为0.5um-1um，所述第二延伸部的长度设置为0.5um-2um。
根据本发明一实施例，所述显示面板还包括发光层，所述发光层对应设置在所述像素开口与所述触控开口内；
其中，所述显示电极设置在所述发光层上，并与所述发光层电性连接，在所述触控开口内，所述发光层的面积小于所述第二填充腔底面的面积，且所述触控电极层覆盖所述发光层。
根据本发明一实施例，所述显示面板还包括阵列基板以及设置在所述阵列基板上的连接电极，所述像素定义层至少覆盖部分所述连接电极，且所述连接电极通过过孔与所述阵列基板电性连接；
其中，在所述触控开口内，所述触控电极与所述连接电极电性连接。
根据本发明一实施例，所述触控电极包括靠近所述第二填充腔侧壁一侧的连接部，以及与所述连接部连接的覆盖部；
其中，所述覆盖部覆盖所述发光层，且所述连接部设置在靠近所述第二填充腔的内壁一侧，并与所述连接电极电性连接。
根据本发明一实施例，所述像素开口对应的开口宽度大于或等于所述触控开口对应的开口宽度。
所述显示面板还包括层间介质层，所述层间介质层连续的设置在所述第二底切层上，且所述层间介质层填充于所述第一填充腔以及第二填充腔的内壁。
根据本发明一实施例，所述第一底切层的材料包括Ti、Cu/Ti、Mo、Al/Mo中的任意一种，所述第二底切层的材料包括SiNx、SiO2、SiON中的任意一种。
根据本发明一实施例，所述显示面板包括多个阵列设置的像素组，每个所述像素组包括多个所述像素开口以及设置在所述像素开口之间的所述触控开口，所述触控电极设置在所述触控开口内；
其中，不同的所述像素组内的触控电极电性连接。
根据本发明实施例的第三方面，还提供一种显示装置，包括：本申请实施例中提供的显示面板，所述显示面板包括：
像素定义层，包括图案化设置的像素开口以及设置在多个所述像素开口之间的触控开口；
第一底切层，设置于所述像素定义层上，
第二底切层，设置于所述第一底切层上，所述像素开口以及所述触控开口至少贯穿于所述第一底切层和所述第二底切层；
其中，在所述像素开口中，所述第二底切层的内壁突出于所述第一底切层远离所述像素定义层一侧的内壁，所述触控开口中，所述第一底切层靠近所述像素定义层一侧的内壁突出于所述像素定义层的内壁。
 有益效果
综上所述，本发明实施例的有益效果为：
本申请实施例提供一种显示面板及显示装置。显示面板包括像素定义层、第一底切层以及第二底切层，其中，像素定义层包括像素开口与触控开口，在像素开口中，第二底切层的内壁突出于第一底切层远离像素定义层一侧的内壁，在触控开口中，第一底切层靠近像素定义层一侧的内壁突出于像素定义层的内壁。本申请实施例中，通过在不同的开口内，使不同的底切层的内壁突出于对应开口区域的膜层内壁，从而形成隔断底切结构，当再在该隔断底切结构内设置不同的电极层时，不同的电极层能更好的分开，有效地防止不同电极之间的干涉问题，并提高显示面板的综合性能。
 附图说明
图1为本申请实施例提供的一种显示面板的膜层结构示意图；
图2为本申请提供的该显示面板不同区域对应的平面示意图；
图3为本申请实施例提供的另一该显示面板的平面示意图；
图4为本申请实施例中提供的触控电极的平面结构示意图；
图5为本申请实施例提供的触控电极的连接俯视示意图；
图6为本申请提供的另一种显示面板的膜层结构示意图；
图7为本申请实施例中提供的第一底切结构以及第二底切结构的结构示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本揭示可用以实施的特定实施例。
随着显示面板制备技术的不断发展，人们对显示面板及显示装置的性能以及显示效果均提出了更高的要求。
尤其对于触控显示面板而言，一方面需要满足显示面板的发光显示效果，另一方面需要满足显示面板的触控操作。现有技术中在制备形成上述触控显示面板时，通常将触控电极与像素驱动电极设置在同一层中，进而造成不同的电极之间噪声信号较大，相互干扰严重，不利于面板综合性能的提高。
本申请实施例提供一种显示面板及显示装置，以有效的改善显示面板内不同信号线之间噪声信号较大，相互干扰严重的问题。
如图1所示，图1为本申请实施例提供的一种显示面板的膜层结构示意图。具体的，该显示面板包括：阵列基板以及设置在该阵列基板上的各功能膜层。其中，该阵列基板包括衬底101、第一绝缘层102、第一栅极绝缘层103、第二栅极绝缘层104、第二绝缘层105。同时，在该阵列基板内设置有多个薄膜晶体管，如薄膜晶体管34。
具体的，该薄膜晶体管34包括有源层331、第一栅极333、第二栅极334以及源漏金属层332，本申请实施例中，该薄膜晶体管34以双栅极为例进行说明。进一步的，还可根据实际产品，设置为一个栅极的结构，这里不再赘述。
其中，该有源层331设置在衬底101上，该第一绝缘层102设置在该衬底101上并覆盖有源层331，该第一栅极333设置在该第一绝缘层102上，同时，该第一栅极绝缘层103设置在该第一绝缘层102上，且该第一栅极绝缘层103完全覆盖该第一栅极333。
进一步的，该第二栅极绝缘层104设置在第一栅极绝缘层103上，第二栅极334设置在第一栅极绝缘层103上，该第二栅极绝缘层104完全覆盖该第二栅极334。同时，该第二绝缘层105设置在第二栅极绝缘层104上，该源漏金属层332设置在该第二绝缘层105上。
进一步的，该阵列基板内还设置有过孔，该源漏金属层332通过该过孔与下方的有源层331电性连接，从而实现控制信号的传输。本申请实施例中，在设置该薄膜晶体管的源漏金属层332时，该源漏金属层332图案化设置在该第二绝缘层105上，且在该薄膜晶体管34对应位置处，该源漏金属层332分别对应其源极以及漏极，在该薄膜晶体管34的一侧，该源漏金属层332可为一金属层3321。
本申请实施例中，在设置上述阵列基板时，该阵列基板内的薄膜晶体管还可设置为底栅的结构，而其他膜层可与本申请中的结构相同，这里不再赘述。
本申请实施例中，该显示面板还包括平坦化层106以及像素定义层107。具体的，该平坦化层106设置在该第二绝缘层105上，且该平坦化层106完全覆盖该薄膜晶体管34的源漏金属层332。
该平坦化层106远离该阵列基板的一侧设置为一平面，如该平面设置为一水平面。同时，该像素定义层107设置在该平坦化层106上，且该像素定义层设置在该平面上。
本申请实施例中，该像素定义层107包括多个开口，多个开口设置在像素定义层107的不同位置处，且各开口之间不交叠或者相互干扰。具体的，该像素定义层107包括像素开口51以及触控开口52。
具体的，该像素开口51可图案化的设置在该像素定义层107上，在设置时，该像素开口51可在像素定义层107的行以及列方向上阵列设置。
本申请实施例中，该像素开口51为像素的发光区域，通过在各个像素开口51内设置对应的发光单元，从而实现显示面板的发光显示。
具体的，该触控开口52可设置在多个像素开口51之间对应位置处，如该触控开口52设置在多个像素开口51所形成的几何中心处。且每个触控开口52不与像素开口51相交。
进一步的，本申请实施例中，该显示面板还包括电极层。具体的，该电极层包括显示电极411以及触控电极412。其中，该显示电极411对应设置在像素开口51内，触控电极412对应设置在触控开口52内。且该触控电极412与该显示电极411之间绝缘设置。
同时，该显示面板还包括第一底切层108以及第二底切层109。该第一底切层108设置在该像素定义层107上，第二底切层109设置在第一底切层108上。
其中，上述像素开口51与触控开口52至少贯穿于第一底切层108以及第二底切层109。本申请实施例中，该像素开口51以及触控开口52同时贯穿于第一底切层108、第二底切层109与像素定义层107为例进行说明。
具体的，该显示面板还包括第一开口71和第二开口72、第一填充腔61以及第二填充腔62。其中，该第一开口71与像素开口51对应设置，如设置在该像素开口51上方，第二开口72与触控开口52对应设置，如设置在该触控开口52上方。所述像素开口51形成有第一填充腔61，所述触控开口52形成有第二填充腔62。
具体的，该第一开口71与该第一填充腔具有相同的中轴线。且该第一填充腔61可由像素定义层107、第一底切层108以及第二底切层109所构成。本申请实施例中，在该像素开口51对应区域处，该第二底切层109的内壁突出于第一底切层108远离所述像素定义层107一侧的内壁，并形成第一底切结构32。同时，在触控开口52对应区域内，所述第一底切层108靠近所述像素定义层107一侧的内壁突出于所述像素定义层107的内壁，并形成第二底切结构33。这样，第一底切结构32上部对应的第二底切层109与该像素开口51之间形成上述第一填充腔41，同时，第二底切结构33上部对应的第一底切层108与该触控开口52之间形成上述第二填充腔62。本申请实施例中，由不同膜层之间形成的第一底切结构与第二底切结构设置在不同位置处，当在不同位置处设置不同的电极时，可有效地防止不同电极之间的干涉问题，并提高面板的综合性能。
具体的，详见图7所示，图7为本申请实施例中提供的第一底切结构以及第二底切结构的结构示意图。结合图1的膜层结构，本申请实施例中，该第一开口71可与第一填充腔61以及该像素开口51的中轴线重合。同时，该第一开口71对应的第二底切层109的开口口径小于该第一填充腔61的宽度。
具体的，该第一底切结构32对应的第二底切层109包括覆盖部分第一填充腔61的第一延伸部443。在该显示开口中，该第一延伸部443突出于该第一底切层108形成对应于像素开口的第一开口。当在该填充腔61内蒸镀沉积各膜层时，各膜层无法蒸镀到该第一延伸部443下方投影区域内，从而将对应的膜层隔断。
同时，该第二底切结构33中，在该触控开口52对应位置处，该第一底切层108的边缘突出于该像素定义层107的四周边缘以遮挡部分触控开口。
本申请实施例中，在该第二底切结构33对应的第一底切层108包括突出于像素定义层并覆盖第二填充腔62的第二延伸部444。具体的，该第二延伸部444覆盖部分该第二填充腔62。当在该第二底切结构33内蒸镀制备其他膜层时，由于设置有第二延伸部444，从而无法在第二底切结构下方投影位置处，通过蒸镀工艺直接形成其他膜层，最终得到隔断结构。
进一步的，该第二开口72的中轴线可与第二填充腔62以及触控开口52的中轴线重合。这样，三者的投影可形成同心圆的结构，从而同一膜层以及不同膜层之间具有较好的对称性，并保证各膜层的性能。
进一步的，该触控开口52内，第二开口72的边缘可与第一底切层108的开口边缘平齐，从而保证膜层之间的紧密贴合效果。
本申请实施例中，该第一开口71的开口半径大于该第二开口72的开口半径，该第二开口72的开口宽度小于该第二填充腔62的底部宽度，且该第一开口71的开口宽度小于该第一填充腔61的底部宽度。同时，该第一填充腔61的底部宽度可大于像素开口51的底部宽度，该第二填充腔62的宽度可与该触控开口52的宽度相同。从而保证在不同的填充腔以及开口区内蒸镀膜层的蒸镀效果，并保证膜层的质量。
本申请实施例中，第一底切结构对应的第一延伸部443的长度小于该第二底切结构对应的第二延伸部444的长度，从而保证该第一开口具有较大的开口面积，并保证显示面板内像素单元的发光效果。
进一步的，本申请实施例中，该显示面板还包括连接电极以及发光层311。具体的，该连接电极对应设置在像素开口51以及触控开口52内，且该连接电极设置在平坦化层106上。本申请实施例中，该连接电极包括设置在像素开口51内的第一连接电极211，以及设置在触控开口52内的第二连接电极212。
本申请实施例中，该第一连接电极211通过过孔与薄膜晶体管的源漏金属层332电连接，该第二连接电极212通过过孔与金属层3321电连接。
同时，该发光层311分别对应设置在该第一连接电极211以及第二连接电极212上。
进一步的，该显示电极411设置在该第一填充腔61的底部，并延伸至填充腔61对应的第一底切层108的侧壁。同时，该显示电极411与该发光层311上，且该显示电极411与该发光层311以及第一底切层108电性连接。本申请实施例中，该第一底切层108可设置为导电材料，如Ti、Cu/Ti、Mo、Al/Mo中的任意一种，或其其他导电金属材料。
进一步的，该第一底切层108的膜层厚度可大于第二底切层109的膜层厚度，优选的，该第一底切层108的厚度设置为0.5um-2um。同时，该第二底切层109的膜层厚度设置为0.3um-3um。本申请实施例中，该第一底切层108的厚度可设置为2um，且该第二底切层109的厚度设置为1um。从而保证第一填充腔与第二填充腔的大小，并保证填充腔内膜层的贴合效果。
本申请实施例中，该显示电极411可为该发光层311的阴极，这样，该显示电极411与第一底切层108形成双层阴极结构，从而有效的降低了显示面板的阴极阻抗，并有效的提高了面板的性能。
进一步的，该第一延伸部443在第一填充腔61底部的投影，与该显示电极411部分重合。即该显示电极411延伸至该第一底切结构对应的投影区域内，并与其部分重合，同时，在设置上述触控电极时，该触控电极设置在触控开口内并与所述第二填充腔的侧壁接触，同时，该触控电极还完全覆盖该发光层。
在制备形成该显示电极411时，可通过蒸镀以及溅射相结合的工艺制备形成。本申请实施例中，该第一延伸部443的长度可设置为0.5um-1um，同时，该第二延伸部444的长度可设置为0.5um-2um。本申请实施例中，为了保证该像素开口内像素的发光面积，本申请实施例中，该第一延伸部443的长度可小于第二延伸部444的长度，优选的，该第一延伸部443的长度设置为1um，且该第二延伸部444的长度设置为1.5um。
同时，在该触控开口52内，该发光层311设置在该第二连接电极212上，且该触控电极412电性设置在该第二连接电极212，且该触控电极412完全覆盖该发光层311。
本申请实施例中，该触控电极412还包括连接部4123以及与该连接部4123相连接的覆盖部4124。该连接部4123设置在靠近第二填充腔62侧壁一侧，且通过该连接部4123实现与底部的第二连接电极212电性连接，该覆盖部4124覆盖该发光层311。
具体的，该连接部4123设置在该第二底切结构的投影区域内，即该连接部4123设置在第二延伸部444在该底部的投影区域内，且该触控电极412也可通过蒸镀以及溅射相结合的工艺制备形成。
进一步的，该触控电极412可与该第二填充腔62的侧壁相贴合，从而保证该触控电极412的牢固。本申请实施例中，由于该显示面板包括第一底切结构32以及第二底切结构33，而该显示电极411和触控电极412对应的设置在不同位置处的底切结构内，通过该底切结构以有效的防止两电极之间的相互干扰。
本申请实施例中，在制备形成该显示电极411以及触控电极412时，两不同的电极可同层并在同一制备蒸镀工艺的条件下制备得到。蒸镀完成后，在分别对其进行溅射，并最终形成本申请实施例中的触控电极412以及显示电极411。
进一步的，该显示电极411可与触控电极412的厚度相同，且该显示电极411的面积可大于该触控电极412的面积。
如图2所示，图2为本申请提供的该显示面板不同区域对应的平面示意图。结合图1中的膜层结构，本申请实施例中，以一个像素组37为例进行说明。该像素组内包括四个像素开口51。每个像素开口51可分别对应红色发光像素、蓝色发光像素、绿色发光像素中的至少一种，如该四个像素开口51可分别对应一个红色发光像素、一个绿色发光像素以及两个蓝色发光像素。各像素之间的位置关系不做限定，具体可根据实际情况进行设定。
本申请实施例中，上述四个像素开口成矩形或者圆形环绕设置，同时，各像素开口51的大小可根据产品的需求进行设定。
进一步的，在该像素开口51之间，还设置有触控开口52。本申请实施例中，该触控开口52可对应的设置在不同的像素开口51之间，如设置在多个像素开口51的几何中心位置处。本申请实施例中，每个像素开口的开口半径可设置为5um-100um。或者根据实际产品的大小进行设定。
进一步的，如图3所述，图3为本申请实施例提供的另一该显示面板的平面示意图。结合图2中的排布，本申请实施例中，该触控开口52设置为其他形成，如菱形。
优选的，该触控开口52对应的像素开口形状还可设置为圆形、菱形、方形以及椭圆形中的任意一种，以及该像素开口51还可设置为圆形、方形以及菱形中的任意一种，这里不再赘述。
进一步的，如图4所示，图4为本申请实施例中提供的触控电极的平面结构示意图。结合图1-图3中的膜层结构，本申请实施例中，由于个开口阵列的设置在显示面板上，因此，在每个触控开口52内均设置有触控电极412。本申请实施例中，详见图1中结构，该触控电极412通过与第二连接电极212电性连接，同时，该第二连接电极212与金属层3321电性连接，而每个触控开口52内的触控电极412均与对应的金属层3321电性连接。同时，本申请实施例中，该触控电极412还可通过对应的薄膜晶体管的第二连接电极212以及第一栅极或第二栅极形成连通，这样，不同的触控电极412相当于通过导线46相互连接。或者通过上述第二连接电极212、第一栅极以及第二栅极引到显示面板外部，并与外部电路电性连接，并最终形成显示面板的整个触控电极。
本申请实施例中，在设置上述各个像素组37时，各像素组之间的距离可设置为相同的距离，或者根据实际产品的需求进行设定，这里不再赘述。
详见图5所示，图5为本申请实施例提供的触控电极的连接俯视示意图。本申请实施例中，在每一个电极单元中，对应设置有多个图4中设置的像素组37。同时，该触控电极可由多个触控单元55阵列设置所形成。
具体的，该触控电极可包括驱动电极51以及感应电极52。该驱动电极51与该感应电极52可设置在同层中，且该驱动电极51与该感应电极52图案化交替设置。本申请实施例中，相邻的驱动电极51之间可通过第一连接桥511电性连接，相邻的感应电极52之间可通过第二连接桥521电性连接。最终形成本申请实施例中提供的各触控电极的结构。
本申请实施例中，该第一连接桥511的朝向可与第二连接桥521的朝向不同，如图5中，该第一连接桥511均朝向触控单元的左上方倾斜设置，而该第二连接桥521均朝向触控单元的右上方倾斜设置。从而通过将连接桥设置为不同的朝向，以避免驱动电极51与感应电极52之间的相互连接，并保证该触控电极的触控效果及性能。
进一步的，本申请实施例中，上述驱动电极51以及感应电极52还对应的与触控集成电路电性连接，触控电极接收到触控信号并根据触控集成电路的控制，以实现显示面板的触控操作。
进一步的，如图6所示，图6为本申请提供的另一种显示面板的膜层结构示意图。该显示面板还包括层间介质层110、第一钝化层788以及第二钝化层789。具体的，该层间介质层110设置在该第二底切层109上，该第一钝化层788设置在该层间介质层110上，同时，该第二钝化层789设置在该第一钝化层788上。同时，该层间介质层110以及第一钝化层788完全填充该第一填充腔61以及第二填充腔62。本申请实施例中，该层间介质层110与该第一填充腔61以及第二填充腔62的侧壁相贴合，并完全覆盖上述各个膜层。在一种实施例中，该层间介质层110以及第二钝化层789为无机封装层，第一钝化层788为有机封装层。
本申请实施例中，该第一钝化层788、第二钝化层789以及第二底切层109的材料可相同，如均设置为无机材料，可选的，为SiNx、SiO 2、SiON中的任意一种。
进一步的，本申请实施例还提供一种显示装置，该显示装置包括本申请实施例中提供的显示面板，在该显示面板内设置有显示电极以及触控电极，且该显示电极和触控电极分别设置在像素开口以及触控开口内。本申请实施例中，在上述像素开口内设置有第一底切结构，在触控开口内设置有第二底切结构。通过第一底切结构与第二底切结构从而使得在制备各电极层时，各不同功能的电极层能同层制备，且能断开。进而保证该触控电极与显示电极之间的绝缘，并有效的防止了不同电极之间的相互干扰，有效的提高了显示面板及装置的显示效果及触控性能，并提高器件的综合性能。
本申请实施例中，该显示面板以及其对应的显示装置可为手机、电脑、电子纸、显示器、笔记本电脑、数码相框等任何可显示或者触控操作的产品或部件，其具体类型不做具体限制。
综上所述，以上对本发明实施例所提供的一种显示面板及显示装置进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的技术方案及其核心思想；虽然本发明以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为基准。

Claims (20)

  1. 一种显示面板，包括：
    像素定义层，所述像素定义层上设置有多个像素开口以及设置在多个所述像素开口之间的触控开口；
    第一底切层，设置于所述像素定义层上，
    第二底切层，设置于所述第一底切层上，所述像素开口以及所述触控开口至少贯穿于所述第一底切层和所述第二底切层；
    其中，在所述像素开口中，所述第二底切层的内壁突出于所述第一底切层远离所述像素定义层一侧的内壁，所述触控开口中，所述第一底切层靠近所述像素定义层一侧的内壁突出于所述像素定义层的内壁；
    其中，所述第一底切层的材料设置为金属材料，所述第二底切层的材料设置为无机材料。
  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显示电极与触控电极，所述像素开口形成有第一填充腔，所述触控开口形成有第二填充腔，
    其中，所述显示电极设置在所述像素开口内并延伸至所述第一填充腔的侧壁，且与所述第一底切层电性连接，所述触控电极设置在触控开口内并与所述第二填充腔的侧壁接触。
  3. 根据权利要求2所述的显示面板，其中，所述第二底切层包括突出于所述第一底切层的第一延伸部以形成对应于所述像素开口的第一开口，所述第一底切层包括突出于所述像素定义层对应的第二延伸部；
    其中，所述第一延伸部在所述第一填充腔底面上的投影与所述显示电极在所述第一填充腔底面上的投影部分重合，所述第二延伸部在所述第二填充腔底面上的投影与所述触控电极在所述第二填充腔底面上的投影部分重合。
  4. 根据权利要求3所述的显示面板，其中，所述第一延伸部的长度设置为0.5um-1um，所述第二延伸部的长度设置为0.5um-2um。
  5. 根据权利要求2所述的显示面板，其中，所述显示面板还包括发光层，所述发光层对应设置在所述像素开口与所述触控开口内；
    其中，所述显示电极设置在所述发光层上，并与所述发光层电性连接，在所述触控开口内，所述发光层的面积小于所述第二填充腔底面的面积，且所述触控电极层覆盖所述发光层。
  6. 根据权利要求5所述的显示面板，其中，所述显示面板还包括阵列基板以及设置在所述阵列基板上的连接电极，所述像素定义层至少覆盖部分所述连接电极，且所述连接电极通过过孔与所述阵列基板电性连接；
    其中，在所述触控开口内，所述触控电极与所述连接电极电性连接。
  7. 根据权利要求6所述的显示面板，其中，所述触控电极包括靠近所述第二填充腔侧壁一侧的连接部，以及与所述连接部连接的覆盖部；
    其中，所述覆盖部覆盖所述发光层，且所述连接部设置在靠近所述第二填充腔的内壁一侧，并与所述连接电极电性连接。
  8. 根据权利要求1所述的显示面板，其中，所述像素开口对应的开口宽度大于或等于所述触控开口对应的开口宽度。
  9. 一种显示面板，其中，包括：
    像素定义层，所述像素定义层上设置有多个像素开口以及设置在多个所述像素开口之间的触控开口；
    第一底切层，设置于所述像素定义层上，
    第二底切层，设置于所述第一底切层上，所述像素开口以及所述触控开口至少贯穿于所述第一底切层和所述第二底切层；
    其中，在所述像素开口中，所述第二底切层的内壁突出于所述第一底切层远离所述像素定义层一侧的内壁，所述触控开口中，所述第一底切层靠近所述像素定义层一侧的内壁突出于所述像素定义层的内壁。
  10. 根据权利要求9所述的显示面板，其中，所述显示面板还包括显示电极与触控电极，所述像素开口形成有第一填充腔，所述触控开口形成有第二填充腔，
    其中，所述显示电极设置在所述像素开口内并延伸至所述第一填充腔的侧壁，且与所述第一底切层电性连接，所述触控电极设置在触控开口内并与所述第二填充腔的侧壁接触。
  11. 根据权利要求10所述的显示面板，其中，所述第二底切层包括突出于所述第一底切层的第一延伸部以形成对应于所述像素开口的第一开口，所述第一底切层包括突出于所述像素定义层对应的第二延伸部；
    其中，所述第一延伸部在所述第一填充腔底面上的投影与所述显示电极在所述第一填充腔底面上的投影部分重合，所述第二延伸部在所述第二填充腔底面上的投影与所述触控电极在所述第二填充腔底面上的投影部分重合。
  12. 根据权利要求11所述的显示面板，其中，所述第一延伸部的长度设置为0.5um-1um，所述第二延伸部的长度设置为0.5um-2um。
  13. 根据权利要求10所述的显示面板，其中，所述显示面板还包括发光层，所述发光层对应设置在所述像素开口与所述触控开口内；
    其中，所述显示电极设置在所述发光层上，并与所述发光层电性连接，在所述触控开口内，所述发光层的面积小于所述第二填充腔底面的面积，且所述触控电极层覆盖所述发光层。
  14. 根据权利要求13所述的显示面板，其中，所述显示面板还包括阵列基板以及设置在所述阵列基板上的连接电极，所述像素定义层至少覆盖部分所述连接电极，且所述连接电极通过过孔与所述阵列基板电性连接；
    其中，在所述触控开口内，所述触控电极与所述连接电极电性连接。
  15. 根据权利要求14所述的显示面板，其中，所述触控电极包括靠近所述第二填充腔侧壁一侧的连接部，以及与所述连接部连接的覆盖部；
    其中，所述覆盖部覆盖所述发光层，且所述连接部设置在靠近所述第二填充腔的内壁一侧，并与所述连接电极电性连接。
  16. 根据权利要求9所述的显示面板，其中，所述像素开口对应的开口宽度大于或等于所述触控开口对应的开口宽度。
  17. 根据权利要求9中所述的显示面板，其中，所述显示面板还包括层间介质层，所述层间介质层连续的设置在所述第二底切层上，且所述层间介质层填充于所述第一填充腔以及第二填充腔的内壁。
  18. 根据权利要求9所述的显示面板，其中，所述第一底切层的材料包括Ti、Cu/Ti、Mo、Al/Mo中的任意一种，所述第二底切层的材料包括SiNx、SiO 2、SiON中的任意一种。
  19. 根据权利要求9所述的显示面板，其中，所述显示面板包括多个阵列设置的像素组，每个所述像素组包括多个所述像素开口以及设置在所述像素开口之间的所述触控开口，所述触控电极设置在所述触控开口内；
    其中，不同的所述像素组内的触控电极电性连接。
  20. 一种显示装置，包括显示面板，所述显示面板包括：
    像素定义层，所述像素定义层上设置有多个像素开口以及设置在多个所述像素开口之间的触控开口；
    第一底切层，设置于所述像素定义层上，
    第二底切层，设置于所述第一底切层上，所述像素开口以及所述触控开口至少贯穿于所述第一底切层和所述第二底切层；
    其中，在所述像素开口中，所述第二底切层的内壁突出于所述第一底切层远离所述像素定义层一侧的内壁，所述触控开口中，所述第一底切层靠近所述像素定义层一侧的内壁突出于所述像素定义层的内壁。
PCT/CN2023/076494 2023-01-31 2023-02-16 显示面板及显示装置 Ceased WO2024159558A1 (zh)

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