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KR-20260065704-A - DISPLAY PANEL AND ELECTRONIC DEVICE HAVING THE SAME

KR20260065704AKR 20260065704 AKR20260065704 AKR 20260065704AKR-20260065704-A

Abstract

A display panel comprises a base substrate, a semiconductor pattern, an insulating layer, a gate pattern, an interlayer insulating layer, a source-drain pattern, a via layer, and a light-emitting element. A first region and a second region are defined on the base substrate. The second region includes a bending region, a cover region, and a pad region. The bending region may be bent. The cover region extends from one side of the bending region and surrounds the first region. The pad region extends from the other side of the bending region. A semiconductor pattern is disposed on the first region and includes a semiconductor material. An insulating layer is disposed on the base substrate and covers the semiconductor pattern. A gate pattern is disposed on the gate insulating layer, and at least a portion overlaps with the semiconductor pattern. The insulating layer covers the gate pattern. A plurality of first crack-prevention openings and a plurality of second crack-prevention openings are defined on the insulating layer. The number of the plurality of first crack-prevention openings and the number of the plurality of second crack-prevention openings are different from each other.

Inventors

  • 정선교
  • 송호성
  • 조성민

Assignees

  • 삼성디스플레이 주식회사

Dates

Publication Date
20260511
Application Date
20241101

Claims (20)

  1. A base substrate having a first region and a second region defined, wherein the second region includes a bending region capable of being bent, a cover region extending from one side of the bending region and surrounding the first region, and a pad region extending from the other side of the bending region; A semiconductor pattern disposed on the first region and comprising a semiconductor material; A gate insulating layer disposed on the base substrate and covering the semiconductor pattern; A gate pattern disposed on the gate insulating layer, wherein at least a portion overlaps with the semiconductor pattern; An interlayer insulating layer that covers the gate pattern, wherein a plurality of first crack-prevention openings are defined in a portion overlapping the cover area, each extending along the outer edge of the cover area, and a plurality of second crack-prevention openings are defined in a portion overlapping the pad area, each extending along the outer edge of the pad area, wherein the number of the plurality of first crack-prevention openings and the number of the plurality of second crack-prevention openings are different; A source-drain pattern disposed on the interlayer insulating layer, with at least a portion electrically connected to the semiconductor pattern; A via layer covering the above source-drain pattern; and A display panel comprising a light-emitting element disposed on the above via layer.
  2. In Article 1, A display panel in which the number of the plurality of second crack-prevention openings is greater than the number of the plurality of first crack-prevention openings.
  3. In Article 2, A display panel in which at least one of a plurality of third crack-prevention openings each superimposed on a plurality of first crack-prevention openings and a plurality of fourth crack-prevention openings each superimposed on a plurality of second crack-prevention openings is defined in the gate insulating layer.
  4. In Paragraph 3, A plurality of pads disposed on the pad area above; Electrical components overlapping the plurality of pads above; and Each further includes a plurality of spider wirings that extend from the plurality of pads and transmit a signal received from the electrical component to at least one of the source-drain pattern and the gate pattern, The plurality of second crack-prevention openings are a display panel defined between the plurality of spider wirings and the outer edge of the pad area.
  5. In Paragraph 4, The plurality of second crack-prevention openings are a display panel spaced apart from the plurality of first crack-prevention openings on a plane with the bending area in between.
  6. In Paragraph 4, A display panel in which, when the bending area is bent, the plurality of second crack-preventing openings overlap at least one of the first area and the cover area.
  7. In Paragraph 4, The above base substrate is, A first base layer containing organic material; A second base layer disposed on the first base layer and having at least one of a plurality of fifth crack-prevention openings each overlapping the plurality of first crack-prevention openings and a plurality of sixth crack-prevention openings each overlapping the plurality of second crack-prevention openings defined therein; and A display panel comprising a third base layer disposed on the second base layer and containing an organic material.
  8. In Paragraph 4, A display panel in which the shape projected onto the base substrate by each of the plurality of second crack-preventing openings includes at least one of a line segment shape, a curve shape, and a zigzag shape.
  9. In Paragraph 4, A display panel further comprising a functional layer disposed between the base substrate and the semiconductor pattern, wherein at least one of a plurality of seventh crack-prevention openings each overlapping the plurality of first crack-prevention openings and a plurality of eighth crack-prevention openings each overlapping the plurality of second crack-prevention openings is defined.
  10. A base substrate having a first region and a second region defined, wherein the second region includes a bending region capable of being bent, a cover region extending from one side of the bending region and surrounding the first region, and a pad region extending from the other side of the bending region; A semiconductor pattern disposed on the first region and comprising a semiconductor material; A gate insulating layer disposed on the base substrate and covering the semiconductor pattern; A gate pattern disposed on the gate insulating layer, wherein at least a portion overlaps with the semiconductor pattern; A plurality of first protruding members spaced apart from each other on the cover area and a plurality of second protruding members spaced apart from each other on the pad area, wherein each of the plurality of first protruding members extends along at least a portion of the outline of the cover area and each of the plurality of second protruding members extends along at least a portion of the outline of the pad area, and the number of the plurality of first protruding members is different from the number of the plurality of second protruding members, and an interlayer insulating layer covering the gate pattern; A source-drain pattern disposed on the interlayer insulating layer, with at least a portion electrically connected to the semiconductor pattern; A via layer covering the above source-drain pattern; and A display panel comprising a light-emitting element disposed on the above via layer.
  11. In Article 1, A display panel in which the number of the plurality of second protruding members is greater than the number of the plurality of first protruding members.
  12. In Article 11, The gate insulating layer comprises at least one of a plurality of third protrusions each overlapping the plurality of first protrusions and a plurality of fourth protrusions each overlapping the plurality of second protrusions.
  13. In Article 12, A plurality of pads disposed on the pad area above; Electrical components electrically connected to the plurality of pads above; and Each further includes a plurality of spider wirings that extend from the plurality of pads and transmit a signal received from the electrical component to at least one of the source-drain pattern and the gate pattern, The plurality of second protruding members are a display panel disposed between the plurality of spider wirings and the outer edge of the pad area.
  14. In Article 13, The plurality of second protruding members are spaced apart from the plurality of first protruding members on a plane with the bending area in between.
  15. In Article 13, A display panel in which, when the bending area is bent, the plurality of second protruding members overlap at least one of the first area and the cover area.
  16. In Article 13, The above base substrate is, A first base layer containing organic material; A second base layer disposed on the first base layer and comprising at least one of a plurality of fifth protruding members each overlapping the plurality of first protruding members and a plurality of sixth protruding members each overlapping the plurality of second protruding members; and A display panel comprising a third base layer disposed on the second base layer and containing an organic material.
  17. In Article 13, A display panel in which the shape projected onto the base substrate by each of the plurality of second protruding members includes at least one of a line segment shape, a curve shape, and a zigzag shape.
  18. In Article 13, It further includes a functional layer disposed between the base substrate and the semiconductor pattern, and The above functional layer comprises at least one of a plurality of seventh protruding members each overlapping the plurality of first protruding members and a plurality of eighth protruding members each overlapping the plurality of second protruding members.
  19. Includes a display panel, The above display panel is, A base substrate having a first region and a second region defined, wherein the second region includes a bending region capable of being bent, a cover region extending from one side of the bending region and surrounding the first region, and a pad region extending from the other side of the bending region; A semiconductor pattern disposed on the first region and comprising a semiconductor material; A gate insulating layer disposed on the base substrate and covering the semiconductor pattern; A gate pattern disposed on the gate insulating layer, wherein at least a portion overlaps with the semiconductor pattern; A plurality of first protruding members spaced apart from each other on the cover area and a plurality of second protruding members spaced apart from each other on the pad area, wherein each of the plurality of first protruding members extends along at least a portion of the outline of the cover area and each of the plurality of second protruding members extends along at least a portion of the outline of the pad area, and the number of the plurality of first protruding members is different from the number of the plurality of second protruding members, and an interlayer insulating layer covering the gate pattern; A source-drain pattern disposed on the interlayer insulating layer, with at least a portion electrically connected to the semiconductor pattern; A via layer covering the above source-drain pattern; and An electronic device comprising a light-emitting element disposed on the above via layer.
  20. In Article 19, A plurality of first crack-preventing openings are defined in the portion of the interlayer insulation layer that overlaps with the cover area, each extending along the outer edge of the cover area. A plurality of second crack-prevention openings are defined in the portion of the interlayer insulation layer that overlaps with the pad area, each extending along the outer edge of the pad area. Each of the plurality of first protruding members is disposed between two adjacent first crack-prevention openings among the plurality of first crack-prevention openings, and Each of the plurality of second protruding members is an electronic device disposed between two adjacent second crack-prevention openings among the plurality of second crack-prevention openings.

Description

Display panel and electronic device having the same The present invention relates to a display panel for preventing defects caused by crack propagation and an electronic device including the same. A display panel and an electronic device including the display panel include a plurality of light-emitting elements for providing an image to a user. Additionally, wiring for controlling the plurality of light-emitting elements is arranged on the display panel. Impacts may be transmitted to the display panel in various ways during the process of a user utilizing an electronic device. Consequently, cracks may occur in the display panel, and if these cracks propagate to the aforementioned wiring, the wiring may become exposed to the outside. The exposed wiring corrodes, and this corrosion can cause defects in the display panel. In particular, if cracks occur in areas of the display panel where wiring is more densely arranged, the likelihood of defects caused by crack propagation increases. Depending on the area, the display panel may be relatively more or less vulnerable to defects caused by crack propagation. FIGS. 1a and FIGS. 1b illustrate, in an exemplary manner, a perspective view and an exploded view of an electronic device according to one embodiment of the present invention. FIG. 2a illustrates an exemplary plan view of a display panel. Figure 2b illustrates an exemplary appearance of a bent area. FIG. 2c illustrates an exemplary cross-section of a display panel cut along I-I' of FIG. 2a. FIG. 2d is an enlarged view of a portion of the display panel of FIG. 2a. FIG. 2e illustrates an exemplary cross-section of a cover area cut along II-II' of FIG. 2a. FIG. 2f illustrates an exemplary cross-section of the pad area cut along III-III' of FIG. 2d. FIGS. 3a, FIGS. 3c, and FIGS. 3e each illustrate an exemplary cross-section of a cover area cut along II-II' of FIG. 2a. FIGS. 3b, FIGS. 3d, and FIGS. 3f each illustrate an exemplary cross-section of the pad area cut along III-III' of FIG. 2d. FIGS. 4a, FIGS. 4b, FIGS. 4c, FIGS. 4d, and FIGS. 4e are each enlarged views of a portion of the second region shown in FIG. 2a. Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the proportions and dimensions of the components are exaggerated for the effective illustration of the technical content. "And/or" includes all one or more combinations that the associated components may define. Terms such as "include" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. FIG. 1a is an exemplary perspective view of an electronic device (DD) according to one embodiment of the present invention. FIG. 1b is an exemplary exploded view of an electronic device (DD) according to one embodiment of the present invention. Referring to FIGS. 1a and 1b, the electronic device (DD) may include a window (WD), a display panel (DP), and a housing (HS). The electronic device (DD) may be a device for providing an image (IM) to a user. For example, the electronic device (DD) may be any one of a monitor, a television, a smartphone, a wearable device, a navigation system, a terminal mounted in a vehicle, and a tablet PC. However, the shape and use of the electronic device (DD) are not limited to the examples described above, and it is sufficient for the electronic device (DD) to be a device capable of providing an image (IM). A window (WD) is placed on a display panel (DP) to define the appearance of an electronic device (DD) and protect the display panel (DP). The display panel (DP) can provide an image (IM) to the user. The housing (HS) accommodates the display panel (DP) and can protect the display panel (DP). Although not illustrated, the electronic device (DD) may further include an input detection circuit disposed between the display panel (DP) and the window (WD). The input detection circuit is configured to detect user touch, etc., and may include a plurality of input detection sensors. In one embodiment of the present invention, at least one of the window (WD) and the housing (HS) may be omitted. FIG. 2a illustrates an exemplary plan view of a display panel (DP) illustrated in FIG. 1b. FIG. 2b illustrates an exemplary view of a bending region (BA) of a base substrate (BS) bent according to an embodiment of the present invention. FIG. 2c illustrates an exemplary cross-section of a display panel (DP) cut along I-I' in FIG. 2a. Referring to FIGS. 2a to 2c, a display area (DA) and a non-display area (NDA) may be defined on a display panel (DP). A plurality of light-emitting elements (LD) may be disposed on the display area (DA). The non-display area (NDA) may surround the display area (DA). The non-display area (NDA) may i