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KR-102962898-B1 - DISPLAY DEVICE

KR102962898B1KR 102962898 B1KR102962898 B1KR 102962898B1KR-102962898-B1

Abstract

The display device includes a display panel and an input sensing unit disposed on the display panel, wherein an active area and an inactive area surrounding the active area are defined, and the input sensing unit may include a plurality of sensing electrodes disposed in the active area, a plurality of sensing wires connected to the sensing electrodes and disposed in the inactive area, a ground wire disposed outside the sensing wires in the inactive area, and at least one shielding layer extending from the ground wire in the inactive area.

Inventors

  • 김형배
  • 김태준
  • 최재우

Assignees

  • 삼성디스플레이 주식회사

Dates

Publication Date
20260512
Application Date
20210215

Claims (20)

  1. Display panel; and It includes an input sensing unit disposed on the above-mentioned display panel, wherein an active area and an inactive area around the active area are defined, and The above input detection unit is, A plurality of sensing electrodes disposed in the above active region; A plurality of sensing wires connected to the above sensing electrodes and disposed in the above inactive region; Grounding wiring positioned further outward than the sensing wirings in the above inactive area; and It includes at least one shielding layer extending from the grounding wiring in the above inactive area, A display device comprising at least one shielding layer spaced apart from each other and arranged adjacent to the corners of the active area.
  2. In Article 1, A display device in which at least one shielding layer overlaps parts of the sensing wires when viewed in a planar view.
  3. In Article 1, The above grounding wiring is a display device that receives ground voltage.
  4. In Article 1, The above grounding wiring is, First grounding wiring; and It includes a second grounding wire disposed on the first grounding wire and connected to the first grounding wire, The above at least one shielding layer is a display device extending from the first grounding wiring.
  5. In Article 4, Each of the above sensing wires is, A first wiring disposed on the same floor as the first grounding wiring above; and It includes a second wiring disposed on the first wiring and connected to the first wiring, and disposed on the same layer as the second grounding wiring. A display device in which the first wiring is spaced apart from the shielding layer and the second wiring is insulated from the shielding layer and extends to intersect.
  6. In Article 5, It further includes a guard wire disposed between the grounding wire and the sensing wire, The above guard wiring is A first guard wiring disposed on the same floor as the first grounding wiring; and It includes a second guard wiring disposed on the first guard wiring and connected to the first guard wiring, and disposed on the same floor as the second ground wiring. A display device in which the first guard wiring is spaced apart from the shielding layer and the second guard wiring is insulated from the shielding layer and extends to intersect. Display device.
  7. In Article 6, The above first guard wiring is A first extension portion extending in a first direction defined as the direction in which the first wiring extends; and It includes a second extension extending from the first extension in a second direction intersecting the first direction and adjacent to the shielding layer, and The second extension above is a display device disposed between the first wiring and the shielding layer.
  8. In Article 1, In the above display panel, a display area overlapping the active area and a non-display area overlapping the inactive area are defined, and The above display panel is, A plurality of pixels arranged in the above display area; and A display device comprising at least one dam positioned in the non-display area and surrounding the display area.
  9. In Article 8, The above-mentioned at least one shielding layer is a display device that overlaps the portion of the above-mentioned at least one dam when viewed in a planar view.
  10. In Article 8, The above active area is, First side and second side opposite to each other in a second direction extending in a first direction and intersecting the first direction; It includes a third side and a fourth side extending in the second direction and opposite to each other in the first direction, The above grounding wiring is, A first sub-grounding wiring disposed in an inactive area around the first side; and A display device comprising a second sub-grounding wiring disposed in an inactive area around the second side.
  11. In Article 10, The above at least one shielding layer further includes a first shielding layer adjacent to the fourth side and extending in the second direction, and The first shielding layer is a display device that overlaps the portion of the at least one dam around the fourth side when viewed in a planar view.
  12. In Article 11, The first shielding layer is a display device extending from the first sub-grounding wiring.
  13. In Article 11, The first shielding layer is a display device extending from the second sub-grounding wiring.
  14. In Article 11, The first shielding layer is a display device extending from the first sub-grounding wiring and the second sub-grounding wiring.
  15. In Article 10, The above at least one shielding layer includes a plurality of second shielding layers extending from the first sub-grounding wiring toward the first side and extending from the second sub-grounding wiring toward the second side. A display device defined by the second shielding layers and the shielding layers disposed adjacent to the corners of the active region.
  16. In Article 15, The above second shielding layers are a display device disposed adjacent to the portion of the first side adjacent to the third side, the portion of the first side adjacent to the fourth side, the portion of the second side adjacent to the third side, and the portion of the second side adjacent to the fourth side.
  17. In Article 10, A display device comprising at least one shielding layer, further including a plurality of second shielding layers extending toward the first side, the second side, and the third side.
  18. In Article 1, A display device in which at least one shielding layer is disposed in the inactive region, adjacent to the active region, and surrounds the active region.
  19. In Article 1, The above grounding wiring is, First grounding wiring; and It includes a second grounding wire disposed on the first grounding wire and connected to the first grounding wire, The above at least one shielding layer is a display device extending from the second grounding wiring.
  20. A display panel comprising pixels placed in a display area and a dam placed in a non-display area surrounding the display area to surround the display area; and It includes an input sensing unit disposed on the above-mentioned display panel, wherein an active area and an inactive area around the active area are defined, and The above input detection unit is, A plurality of sensing electrodes disposed in the above active region; Grounding wiring placed in the above inactive area; In the above inactive region, a first shielding layer extending from the grounding wiring and overlapping the portion of the dam; and It includes a plurality of second shielding layers extending from the ground wiring in the inactive area toward the active area, and A display device in which the second shielding layers are spaced apart from each other and positioned adjacent to the corners of the active area.

Description

Display Device The present invention relates to a display device. Generally, electronic devices that provide video to users, such as smartphones, digital cameras, laptop computers, navigation systems, and smart televisions, include a display device for displaying the video. The display device generates video and provides the generated video to the user through a display screen. The display device includes a display panel that generates an image and an input detection unit disposed on the display panel for detecting an external input. The input detection unit includes a plurality of detection electrodes for detecting an external input. When first driving signals for driving a display panel are provided to a display panel and second driving signals for driving sensing electrodes are provided to sensing electrodes, noise may occur in the input sensing unit due to signal interference between the first driving signals and the second driving signals. For example, the first driving signals may affect the second driving signals, causing the second driving signals to become distorted. FIG. 1 is a perspective view of a display device according to an embodiment of the present invention. FIG. 2 is a drawing that exemplarily illustrates a cross-section of the display device shown in FIG. 1. FIG. 3 is a drawing exemplarily illustrating a cross-section of the display panel shown in FIG. 2. Figure 4 is a plan view of the display panel shown in Figure 3. FIG. 5 is a diagram exemplarily illustrating a cross-section of a pixel shown in FIG. 4. Figure 6 is a plan view of the input sensing unit shown in Figure 2. Figure 7 is an enlarged view of the first region (AA1) shown in Figure 6. Figure 8 is a cross-sectional view of the line I-I' shown in Figure 7. FIG. 9 is an enlarged view of the second region (AA2) shown in FIG. 6. FIG. 10a is an enlarged view of the third region (AA3) shown in FIG. 6, and is a plan view of the first and second shielding layers, the first ground wiring, the first guard wiring, and the first wiring. FIG. 10b is an enlarged view of the third region (AA3) shown in FIG. 6, and is a plan view of the first and second shielding layers, the second ground wiring, the second guard wiring, and the second wiring. FIG. 11 is a cross-sectional view of the line II-II' shown in FIG. 10b. FIG. 12 is a cross-sectional view of the line III-III' shown in FIG. 10b. FIG. 13 is a cross-sectional view of the line IV-IV' shown in FIG. 10b. FIG. 14 is a cross-sectional view along the line V-V' shown in FIG. 6. FIG. 15 is a cross-sectional view along the line VI-VI' shown in FIG. 6. FIG. 16 is a diagram illustrating, exemplarily, an area where a second electrode of a light-emitting element is formed in a display panel. FIG. 17 is a cross-sectional view along the line Ⅶ-Ⅶ' shown in FIG. 6. FIG. 18 is a cross-sectional view of the line Ⅷ-Ⅷ' shown in FIG. 6. FIG. 19 is a drawing showing a cross-sectional configuration of a display device according to another embodiment of the present invention. FIGS. 20 to 27 are drawings illustrating shielding layers according to various embodiments of the present invention. In this specification, where a component (or region, layer, part, etc.) is described as being “on,” “connected,” or “joined” another component, it means that it may be directly placed/connected/joined on the other component, or that a third component may be placed between them. Identical reference numerals denote identical components. Additionally, in the drawings, the thicknesses, proportions, and dimensions of 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 "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. A singular expression includes a plural expression unless the context clearly indicates otherwise. Additionally, terms such as “below,” “lower,” “above,” and “upper” are used to describe the relationships between the components depicted in the drawings. These terms are relative concepts and are described based on the directions indicated in the drawings. Terms such as "include" or "have" are intended to specify 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. Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as generally