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CN-122028614-A - Display panel, display device and preparation method of display panel

CN122028614ACN 122028614 ACN122028614 ACN 122028614ACN-122028614-A

Abstract

The application relates to a display panel, a display device and a preparation method of the display panel. The display panel comprises a substrate, a first partition structure, a plurality of first electrodes, a plurality of auxiliary electrodes and a plurality of auxiliary electrodes, wherein the first partition structure is arranged on one side of the substrate, the first partition structure surrounds the substrate to form a plurality of first openings, the plurality of first electrodes are arranged on one side of the substrate facing the first partition structure, each first opening corresponds to at least one first electrode, the first electrodes are at least partially arranged in the corresponding first openings, the plurality of auxiliary electrodes are arranged on one side of the substrate facing the first partition structure, each first opening corresponds to at least one auxiliary electrode, the orthographic projection of the auxiliary electrode on the substrate overlaps with the orthographic projection of the corresponding first opening on the substrate, and the auxiliary electrodes are electrically connected with the corresponding first electrodes. Therefore, the display panel, the display device and the preparation method of the display panel can improve the brightness uniformity of the display panel.

Inventors

  • XING RUBO

Assignees

  • 苏州国显创新科技有限公司

Dates

Publication Date
20260512
Application Date
20241031

Claims (10)

  1. 1. A display panel, comprising: A substrate; the first partition structure is arranged on one side of the substrate and is enclosed to form a plurality of first openings; the first electrodes are arranged on one side of the substrate facing the first partition structure, each first opening corresponds to at least one first electrode, and at least part of the first electrodes are arranged in the corresponding first openings; the auxiliary electrodes are arranged on one side of the substrate facing the first partition structure, each first opening corresponds to at least one auxiliary electrode, orthographic projection of the auxiliary electrode on the substrate overlaps orthographic projection of the corresponding first opening on the substrate, the auxiliary electrodes are positioned between the substrate and the corresponding first electrodes, and the auxiliary electrodes are electrically connected with the corresponding first electrodes.
  2. 2. The display panel of claim 1, wherein the display panel comprises a plurality of second partition structures disposed on a side of the substrate facing the first partition structures, each of the first openings corresponding to at least one of the second partition structures, the second partition structures disposed within the corresponding first opening, one of the second partition structures enclosing a second opening, an orthographic projection of the second opening on the substrate covering at least a portion of the orthographic projection of the auxiliary electrode on the substrate; In the first opening and the second partition structure which are correspondingly arranged, the first opening comprises a first gap, the first gap is arranged around the periphery of the second partition structure, and the first electrode is positioned in the first gap, the second opening and one side of the second partition structure, which is away from the substrate; The second opening exposes the corresponding auxiliary electrode, and the first electrode in the second opening is electrically connected with the corresponding auxiliary electrode; preferably, the first partition structure comprises a first partition part and a second partition part, the first partition part is positioned at one side of the second partition part facing the substrate, and the orthographic projection of the first partition part on the substrate is positioned in the orthographic projection of the second partition part on the substrate; Preferably, the second partition structure comprises a third partition part and a fourth partition part, the third partition part is positioned at one side of the fourth partition part facing the substrate, and the orthographic projection of the third partition part on the substrate is positioned in the orthographic projection of the fourth partition part on the substrate; preferably, the first partition and the third partition are arranged in the same layer; preferably, the second partition portion and the fourth partition portion are arranged in the same layer; Preferably, a material of at least one of the first, second, third, and fourth partitions includes an insulating material; Preferably, the material of at least one of the first, second, third and fourth partitions includes at least one of photoresist, silicon oxide, silicon nitride; Preferably, the orthographic projection of the auxiliary electrode on the substrate overlaps with the orthographic projection of the third partition portion on the substrate.
  3. 3. The display panel according to claim 2, wherein the display panel includes a plurality of second electrodes, each of the first openings corresponding to at least one of the second electrodes, the plurality of second electrodes being disposed corresponding to the plurality of first electrodes, the second electrodes being located between the corresponding first electrodes and the substrate; Preferably, the second electrode is disposed on at least part of the outer periphery of the corresponding second partition structure; preferably, the second electrode is spaced from the side wall of the first partition structure; Preferably, the display panel comprises a plurality of light-emitting functional layers, wherein the light-emitting functional layers are arranged corresponding to the first electrodes, at least part of structures of the light-emitting functional layers are positioned in the first gaps and between the corresponding first electrodes and the corresponding second electrodes, the auxiliary electrodes comprise a first auxiliary part and a second auxiliary part which are connected, the end parts of the fourth partition parts protrude out of the side walls of the third partition parts, the orthographic projection of the second auxiliary parts on the substrate is positioned in the orthographic projection of the end parts of the fourth partition parts on the substrate, the light-emitting functional layers cover one side of the first auxiliary parts facing away from the substrate and expose the second auxiliary parts, and the first electrodes extend from one side of the light-emitting functional layers facing away from the substrate to one side of the second auxiliary parts facing away from the substrate; Preferably, a part of the structure of the light-emitting functional layer is located in the second opening and at one side of the second partition structure away from the substrate; preferably, the display panel includes a first conductive member and a first insulating layer, the first insulating layer is located between the first isolation structure and the substrate, and between the second isolation structure and the substrate, the first conductive member is disposed between the first insulating layer and the substrate, the first insulating layer encloses and forms a plurality of first vias, the plurality of first vias are disposed corresponding to the plurality of second electrodes, and expose the first conductive member, and the second electrode is connected to the first conductive member through the corresponding first vias; Preferably, the first insulating layer is configured as a planarization layer.
  4. 4. A display panel according to claim 3, wherein the second electrode is co-layered with and spaced apart from the auxiliary electrode, the auxiliary electrode being located in the corresponding second opening; preferably, the auxiliary electrode is in contact with a sidewall of the second opening; preferably, the display panel further includes a second conductive member, the second conductive member is disposed between the first insulating layer and the substrate, the first insulating layer encloses to form a plurality of second vias, the plurality of second vias correspond to the plurality of auxiliary electrodes and expose the second conductive member, and the auxiliary electrodes are connected to the second conductive member through the corresponding second vias; preferably, the first conductive member and the second conductive member are arranged in the same layer and at intervals.
  5. 5. A display panel according to claim 3, wherein the auxiliary electrode and the first conductive member are co-layered and spaced apart; The first insulating layer encloses and closes and forms a plurality of third via holes, a plurality of third via holes with a plurality of auxiliary electrodes correspond to and set up, and expose corresponding auxiliary electrode, the third via hole with corresponding second opening intercommunication.
  6. 6. The display panel of any one of claims 3-5, wherein the front projection of the auxiliary electrode on the substrate is a first front projection, and the front projection of the second electrode on the substrate is a second front projection; The first orthographic projection is positioned outside the corresponding outer contour of the second orthographic projection, or the second orthographic projection encloses at least part of the corresponding first orthographic projection.
  7. 7. The display panel according to any one of claims 3 to 5, wherein the display panel comprises a second insulating layer located on a side of the first electrode facing the second partition structure, at least a portion of the second insulating layer covering a portion of the second partition structure and extending to a bottom of the second opening and exposing a portion of the auxiliary electrode; preferably, the second insulating layer includes a first sidewall, at least a portion of the first sidewall is located in the second opening, a distance between the first sidewall and a center line of the second opening gradually increases from the substrate to the first partition structure, and the first electrode extends to the second auxiliary portion along the first sidewall; Preferably, the first side wall includes a first end close to the base plate and a second end far from the base plate, and the second end is obliquely arranged relative to the first end in a direction far from a center line of the second opening; Preferably, the light emitting functional layer is located between the first sidewall and the first electrode, and extends to the first auxiliary portion along the first sidewall; preferably, the second insulating layer has a plurality of pixel openings, the pixel openings are disposed corresponding to the first gaps, the pixel openings are located in the corresponding first gaps, and the corresponding second electrodes are exposed; Preferably, the opening size of the pixel opening gradually increases from the substrate to the direction of the first partition structure; preferably, the outline of the orthographic projection of the second electrode on the substrate is positioned in the orthographic projection of the second insulating layer on the substrate; Preferably, the outline of the orthographic projection of the second partition structure on the substrate is positioned in the orthographic projection of the second insulating layer on the substrate; Preferably, the second insulating layer is configured as a pixel defining layer; preferably, the second insulating layer is spaced from the first partition structure.
  8. 8. The display panel of any one of claims 1-5, further comprising a touch electrode, wherein the touch electrode is located on a side of the first partition structure facing away from the substrate, and wherein the first electrode is spaced apart from the touch electrode; Preferably, the touch electrode and the first electrode are arranged on the same layer.
  9. 9. A display device comprising a display panel as claimed in any one of the preceding claims 1-8.
  10. 10. A method for manufacturing a display panel, comprising: Providing a substrate; forming a first partition structure on one side of the substrate, wherein the first partition structure encloses to form a plurality of first openings; Forming a plurality of first electrodes on one side of the substrate facing the first partition structure, wherein each first opening corresponds to at least one first electrode, and the first electrodes are at least partially arranged in the corresponding first openings; and forming a plurality of auxiliary electrodes on one side of the substrate facing the first partition structure, wherein each first opening corresponds to at least one auxiliary electrode, the orthographic projection of the auxiliary electrode on the substrate overlaps with the orthographic projection of the corresponding first opening on the substrate, and the auxiliary electrodes are electrically connected with the corresponding first electrodes.

Description

Display panel, display device and preparation method of display panel Technical Field The application relates to the technical field of display, in particular to a display panel, a display device and a preparation method of the display panel. Background Organic LIGHT EMITTING Diode (OLED) display technology is considered as the new flat panel display technology with the highest potential of the next generation. Compared with the liquid crystal display technology, the OLED display technology has the advantages of low energy consumption, low cost, self-luminescence, wide viewing angle, high response speed and the like. However, the above display panel has poor brightness uniformity. Disclosure of Invention Based on this, it is necessary to provide a display panel, a display device, and a method of manufacturing a display panel capable of improving luminance uniformity of the display panel. In a first aspect, an embodiment of the present application provides a display panel, including: A substrate; The first partition structure is arranged on one side of the substrate and surrounds the first partition structure to form a plurality of first openings; the first electrodes are arranged on one side of the substrate facing the first partition structure, each first opening corresponds to at least one first electrode, and at least part of the first electrodes are arranged in the corresponding first openings; the auxiliary electrodes are arranged on one side of the substrate facing the first partition structure, each first opening corresponds to at least one auxiliary electrode, orthographic projection of the auxiliary electrode on the substrate overlaps orthographic projection of the corresponding first opening on the substrate, the auxiliary electrodes are positioned between the substrate and the corresponding first electrodes, and the auxiliary electrodes are electrically connected with the corresponding first electrodes. According to the display panel provided by the embodiment of the application, the auxiliary electrode connected with the first electrode is arranged, so that the surface resistance of the first electrode can be reduced, the power consumption of the display panel can be reduced, and the brightness uniformity of the display panel can be improved. In one embodiment, the display panel includes a plurality of second partition structures, the plurality of second partition structures are disposed on a side of the substrate facing the first partition structures, each first opening corresponds to at least one second partition structure, the second partition structures are disposed in the corresponding first openings, a second partition structure encloses to form a second opening, and orthographic projection of the second opening on the substrate covers at least part of orthographic projection of the auxiliary electrode on the substrate; in the first opening and the second partition structure which are correspondingly arranged, the first opening comprises a first gap, the first gap is arranged on the periphery of the second partition structure in a surrounding mode, and the first electrode is arranged in the first gap, the second opening and one side, away from the substrate, of the second partition structure; The second opening exposes the corresponding auxiliary electrode, and the first electrode in the second opening is electrically connected with the corresponding auxiliary electrode; Preferably, the first partition structure comprises a first partition part and a second partition part, the first partition part is positioned at one side of the second partition part facing the substrate, and the orthographic projection of the first partition part on the substrate is positioned in the orthographic projection of the second partition part on the substrate; Preferably, the second partition structure comprises a third partition part and a fourth partition part, the third partition part is positioned at one side of the fourth partition part facing the substrate, and the orthographic projection of the third partition part on the substrate is positioned in the orthographic projection of the fourth partition part on the substrate; Preferably, the first partition portion and the third partition portion are arranged on the same layer; preferably, the second partition portion and the fourth partition portion are arranged on the same layer; preferably, the material of at least one of the first, second, third and fourth partitions comprises an insulating material; Preferably, the material of at least one of the first, second, third and fourth partitions includes at least one of photoresist, silicon oxide, silicon nitride; preferably, the orthographic projection of the auxiliary electrode on the substrate overlaps with the orthographic projection of the third partition on the substrate. In one embodiment, the display panel includes a plurality of second electrodes, each first opening corresponds to at least one second