KR-20260063183-A - DISPLAY DEVICE

Abstract

Embodiments of the present disclosure relate to a display device with improved moisture permeability, and may provide a display device comprising a display panel including a display area and a non-display area, power wiring disposed in the non-display area, a plurality of metal layers including a groove formed extending from a part of the power wiring and having a recessed part of its side, and a shielding layer corresponding to the groove of the metal layer.

Inventors

• 신정철
• 이영욱

Assignees

• 엘지디스플레이 주식회사

Dates

Publication Date

20260507

Application Date

20241030

Claims (20)

1. A display panel including a display area and a non-display area; Power wiring placed in the above-mentioned non-display area; A plurality of metal layers extending from a portion of the above-mentioned power wiring and including a groove portion in which a portion of the side is recessed; and A shielding layer corresponding to the groove portion of the metal layer above; A display device including
2. In paragraph 1, The above non-display area includes a bending area positioned on one side of the above display area, and A display device in which the metal layer is placed in a non-display area between the display area and the bending area.
3. In paragraph 1, The above metal layer is, A protrusion extending from a part of the above power wiring and provided in multiple numbers and spaced apart from one another, and A display device comprising a head portion extending from the end of each of the above-mentioned protrusions and having a width greater than that of the protrusions.
4. In paragraph 1, The metal layer comprises a first layer, a second layer, and a third layer, and The first layer above is made of titanium (Ti), and The second layer is disposed on the first layer and is made of aluminum (Al), The third layer is disposed on the second layer and is made of titanium (Ti), A display device in which the width of the second layer is formed to be smaller than the widths of the first layer and the third layer.
5. In paragraph 4, A display device in which the width of the third layer is larger than the width of the second layer and smaller than the width of the first layer.
6. In paragraph 4, The shielding layer is a display device that covers the side portions of the first layer, the second layer, and the third layer, and a portion of the upper portion of the third layer.
7. In paragraph 1, The above display panel is, A base substrate disposed in the above-mentioned display area and the above-mentioned non-display area; At least one thin-film transistor disposed on the base substrate; A first planarization layer covering the above-mentioned thin film transistor; A second flattening layer disposed on the first flattening layer; A first electrode disposed on the second planarization layer; A connecting electrode interposed between the first planarization layer and the second planarization layer, which electrically connects the thin-film transistor and the first electrode; A bank layer disposed on the second planarization layer and having an opening formed therein that exposes a portion of the first electrode; A light-emitting layer disposed on the bank layer and the first electrode; A second electrode disposed on the light-emitting layer; and A sealing layer disposed on the second electrode above; A display device including
8. In Paragraph 7, The above-mentioned bag layer is, A display device comprising a first encapsulation layer disposed on the second electrode, a second encapsulation layer disposed on the first encapsulation layer, and a third encapsulation layer disposed on the second encapsulation layer.
9. In paragraph 8, A display device in which the first encapsulation layer and the third encapsulation layer extend from the display area to the non-display area and cover the power wiring and the metal layer.
10. In Paragraph 7, A display device in which the metal layer is formed of the same material as the connecting electrode.
11. In Paragraph 7, A display device in which the shielding layer is formed of the same material as the bank layer or the second flattening layer.
12. In Paragraph 7, A display device further comprising a touch buffer layer disposed on the above-mentioned encapsulation layer and a touch insulating layer disposed on the above-mentioned touch buffer layer.
13. In Paragraph 12, A display device in which the touch buffer layer and the touch insulating layer extend from the display area to the non-display area and cover the power wiring and the metal layer.
14. In Paragraph 12, A display device comprising a touch sensor portion disposed on the touch buffer layer and including a bridge metal and a touch metal disposed on the bridge metal.
15. In Paragraph 14, A display device comprising a first moisture-permeable portion disposed to overlap with the metal layer in the above-mentioned non-display area and interposed between the touch buffer layer and the touch insulating layer.
16. In paragraph 15, The first moisture-proof part is a display device formed of the same material as the bridge metal.
17. In Paragraph 14, A display device comprising a second moisture-proof portion that is positioned to overlap with the metal layer in the above-mentioned non-display area and covers the touch insulation layer.
18. In Paragraph 17, The above second moisture-proof part is a display device formed of the same material as the touch metal.
19. In paragraph 1, The above power wiring includes a first power wiring and a second power wiring, and The metal layer comprises a first metal layer formed on a part of the first power wiring and a second metal layer formed on a part of the second power wiring, A display device in which the first power wiring having the first metal layer formed thereon and the second power wiring having the second metal layer formed thereon are spaced apart and facing each other in a parallel manner.
20. In Paragraph 19, A display device in which the first power wiring comprises one of a common power wiring and a driving current wiring, and the second power wiring comprises the other of a common power wiring and a driving current wiring.

Description

Display Device The embodiments of the present disclosure relate to a display device. With the recent entry into the information age, the field of displays that visually represent electrical information signals has developed rapidly, and in response to this, various display devices with excellent performance such as thinness, lightness, and low power consumption are being developed. A display device for providing images to a user, such as a television, mobile phone, tablet, computer, navigation system, game console, etc., may include a display panel for generating and displaying images. A display panel may include multiple pixels, a driving unit that drives the pixels, and signal lines that transmit electrical signals to the pixels. The pixels, driving unit, and signal lines included in such a display panel may be damaged or malfunction due to moisture or foreign substances entering from the outside. Therefore, research and development are necessary to prevent damage and malfunction of the display panel caused by moisture or foreign substances. FIG. 1 is a configuration diagram of a display device according to embodiments of the present disclosure. FIG. 2 is a drawing showing the configuration of a display panel according to embodiments of the present disclosure. FIG. 3 is a plan view of a display panel according to embodiments of the present disclosure. Figure 4 is a cross-sectional view of A-A' in Figure 3. Figure 5 is an enlarged plan view of the “S” region of Figure 3. Figure 6 is a cross-sectional view of B-B' in Figure 5. FIG. 7 is a cross-sectional view of a metal layer according to one embodiment of the present disclosure. Figure 8 is a drawing showing a shielding layer covering the groove of the metal layer illustrated in Figure 7. FIG. 9 is a cross-sectional view of a display panel according to another embodiment of the present disclosure. Hereinafter, some embodiments of the present disclosure will be described in detail with reference to the exemplary drawings. In assigning reference numerals to the components of each drawing, the same components may have the same reference numeral as much as possible, even if they are shown in different drawings. Furthermore, in describing the present disclosure, if it is determined that a detailed description of related known components or functions may obscure the essence of the present disclosure, such detailed description may be omitted. Where terms such as "comprising," "having," or "consisting of" are used in this specification, other parts may be added unless "only" is used. Where a component is expressed in the singular, it may include a plural unless there is a special explicit description otherwise. Additionally, terms such as first, second, A, B, (a), (b), etc., may be used to describe the components of the present disclosure. These terms are used merely to distinguish the components from other components, and the nature, order, sequence, or number of the components are not limited by such terms. In describing the positional relationship of components, where it is stated that two or more components are "connected," "combined," or "joined," it should be understood that while the two or more components may be directly "connected," "combined," or "joined," they may also be "connected," "combined," or "joined" with other components "intervened." Here, the other components may be included in one or more of the two or more components that are "connected," "combined," or "joined" with one another. In describing the temporal flow relationship regarding components, methods of operation, or methods of production, for example, when the temporal or sequential relationship is described using "after," "following," "next," or "before," it may include cases where the relationship is not continuous unless "immediately" or "directly" is used. Meanwhile, where numerical values or corresponding information regarding a component (e.g., levels, etc.) are mentioned, even without separate explicit notation, the numerical values or corresponding information may be interpreted as including a range of error that may occur due to various factors (e.g., process factors, internal or external shocks, noise, etc.). Hereinafter, various embodiments of the present disclosure will be described in detail with reference to the attached drawings. FIG. 1 is a configuration diagram of a display device according to embodiments of the present disclosure, and FIG. 2 is a diagram showing the configuration of a display panel according to embodiments of the present disclosure. Referring to FIGS. 1 and 2, the display device (100) may include components for displaying images, such as a display panel (10) and a display driving circuit for driving the display panel (10). The display panel (10) may include a display area (AA) where an image is displayed and a non-display area (NA) where an image is not displayed. The non-display area (NA) may be an outer area of the display area (AA) and may be a beze