Display device

{
  "publication_number": "US2026107667A1",
  "country": "US",
  "kind": "A1",
  "title": "Display device",
  "abstract": "A display device includes a substrate having a light-emission area and a non-light-emission area adjacent to the light-emission area, wherein the non-light-emission area includes a circuit area; at least one first low reflective layer disposed on the circuit area of the non-light-emission area of the substrate; a second low reflective layer disposed on the non-light-emission area of the substrate and spaced apart from the first low reflective layer; at least one light blocking layer disposed on an upper surface of the at least one first low reflective layer; and at least one thin-film transistor disposed on the at least one light blocking layer, wherein each of the at least one first low reflective layer and the second low reflective layer is made of a metal oxide.",
  "claims": [
    "1. A display device comprising: a substrate having a light-emission area and a non-light-emission area adjacent to the light-emission area, the non-light-emission area including a circuit area; at least one first reflective layer on the circuit area of the non-light-emission area of the substrate; a second reflective layer on the non-light-emission area of the substrate and spaced apart from the first reflective layer; at least one light blocking layer on an upper surface of the at least one first reflective layer; and at least one thin-film transistor on the at least one light blocking layer, wherein each of the at least one first reflective layer and the second reflective layer is made of a metal oxide. 2. The display device of claim 1, wherein a side surface of the at least one first reflective layer is positioned further outward than a side surface of the at least one light blocking layer. 3. The display device of claim 1, wherein the second reflective layer is formed integrally and surrounds the light-emission area and the circuit area from a plan view. 4. The display device of claim 1, further comprising: a first buffer layer covering the at least one light blocking layer and the second reflective layer; and at least one signal line on the first buffer layer so as to overlap the second reflective layer. 5. The display device of claim 4, wherein the at least one signal line includes a data line, a driving voltage line, a reference voltage line, and a gate line. 6. The display device of claim 4, further comprising: a second buffer layer covering the at least one signal line, wherein the at least one thin-film transistor is on the second buffer layer so as to overlap the at least one light blocking layer. 7. The display device of claim 1, wherein each of the first reflective layer and the second reflective layer has a single-layer or multi-layer structure including at least one of tungsten oxide, nickel oxide, copper oxide, and molybdenum oxide. 8. The display device of claim 1, wherein the at least one first reflective layer and the second reflective layer are directly on one surface of the substrate through which external light is introduced. 9. A display device comprising: a substrate; a thin-film transistor on the substrate; a signal line on the substrate and electrically connected to the thin-film transistor; a first reflective layer and a light blocking layer between the substrate and the thin-film transistor so as to be spaced apart from the thin-film transistor; and a second reflective layer between the substrate and the signal line so as to be spaced apart from the signal line, wherein the first reflective layer and the second reflective layer are made of a same material configured to absorb external light introduced through the substrate. 10. The display device of claim 9, wherein the first reflective layer and the second reflective layer are directly on one surface of the substrate through which the external light is introduced. 11. The display device of claim 9, wherein an area of the first reflective layer is larger than an area of the light blocking layer. 12. The display device of claim 9, wherein the second reflective layer is spaced apart from the first reflective layer. 13. The display device of claim 9, wherein the signal line includes a data line, a driving voltage line, a reference voltage line, and a gate line. 14. The display device of claim 9, wherein each of the first reflective layer and the second reflective layer has a single-layer or multi-layer structure including a metal oxide including at least one of tungsten oxide, nickel oxide, copper oxide, and molybdenum oxide."
  ],
  "description_excerpt": "The present disclosure relates to a display device.\n\nDisplay devices are incorporated into various electronic devices, including TVs, mobile phones, laptops, and tablets.\n\nDisplay devices include organic light-emitting display device (OLED), which generate light through self-emission, and a liquid crystal display device (LCD), which rely on separate light source.\n\nLight incident from the outside into the display device is reflected from components such as a wiring constituting the display device and then is emitted again through a light exit surface of the display device. The inventors of the present disclosure have recognized that this deteriorates visibility and a contrast ratio of the display device. For this reason, the inventors of the present disclosure have provided various embodiments for reducing reflection of external light. Various embodiments of the present disclosure provide a display device capable of reducing reflection of external light without including a polarizing plate.\n\nVarious embodiments of the present disclosure provide a display device capable of simplifying a manufacturing process and reducing a manufacturing cost and a manufacturing time.\n\nVarious embodiments of the present disclosure provide a display device that efficiently reduces reflection of external light while preventing generation of parasitic capacitance between signal lines and a low reflective layer.\n\nVarious embodiments of the present disclosure provide a display device capable of reducing production energy required for production and thus reducing greenhouse gas emission.",
  "cpc": [
    "H10K 59/8792",
    "H10K 59/131"
  ],
  "ipc": [
    "H10K 59/131",
    "H10K 59/80"
  ],
  "assignees": [
    "LG Display Co Ltd"
  ],
  "inventors": [
    "Nara SHIN",
    "Byungjin Kim",
    "Chulho Kim"
  ],
  "filing_date": "2025-03-28",
  "publication_date": "2026-04-16",
  "priority_date": "2024-10-14",
  "application_number": "US-202519094371-A",
  "family_id": "99436720",
  "cited_by_count": 0
}