KR-102962709-B1 - Display apparatus

Abstract

The present invention provides a display device having a simple structure and capable of reducing the area of a peripheral region, comprising: a substrate; a lower metal layer located on the substrate and including a first extension line extending from a peripheral region outside the display region into the display region; a semiconductor layer located on the lower metal layer; a gate layer located on the semiconductor layer; a first metal layer located on the gate layer; and a second metal layer located on the first metal layer and including a first data line extending from the peripheral region into the display region and electrically connected to the first extension line in the peripheral region.

Inventors

• 김은현
• 고은혜
• 김연홍
• 이경원
• 이선희
• 임준형

Assignees

• 삼성디스플레이 주식회사

Dates

Publication Date

20260508

Application Date

20201105

Claims (19)

1. Substrate; A lower metal layer located on the substrate and including a first extension line extending from a peripheral area outside the display area into the display area; A semiconductor layer located on top of the lower metal layer; A gate layer located on top of the semiconductor layer; A first metal layer located above the gate layer and located within the display area, electrically connected to the first extension line, and including a second extension line extended in a direction intersecting the extension direction of the first extension line; and A second metal layer located on top of the first metal layer, extending from the surrounding area into the display area and including a first data line electrically connected to the first extension line in the surrounding area; A display device having
2. delete
3. In paragraph 1, A display device comprising a lower metal layer, further including a third extension line that extends from within the display area to the surrounding area and is electrically connected to the second extension line.
4. In paragraph 3, A display device in which the third extension line is extended in an extension direction parallel to the extension direction of the first extension line.
5. In paragraph 3, A display device further comprising a first input line located above the third extension line in the above surrounding area and electrically connected to the third extension line.
6. In paragraph 5, Further comprising a second input line located below the second metal layer in the above surrounding area, A display device comprising a second metal layer extending from the peripheral region into the display region and further including a second data line electrically connected to the second input line in the peripheral region.
7. In paragraph 6, A display device in which the first input line and the second input line are located on the same layer as the gate layer.
8. In paragraph 6, A display device in which the first input line and the second input line are located in the same layer as the first metal layer.
9. Substrate; A lower metal layer located on the substrate and including a first extension line extending from a peripheral area outside the display area into the display area; A semiconductor layer located on top of the lower metal layer; A gate layer located on top of the semiconductor layer; A first metal layer located above the gate layer; and A second metal layer located on top of the first metal layer, extending from the surrounding area into the display area and including a first data line electrically connected to the first extension line in the surrounding area; A display device comprising, when viewed from a direction perpendicular to the upper surface of the substrate, the lower metal layer overlaps with the semiconductor layer.
10. In Paragraph 9, A display device comprising an oxide semiconductor material in the above semiconductor layer.
11. Substrate; A lower metal layer located on the substrate and including a first extension line extending from a peripheral area outside the display area into the display area; A semiconductor layer located on top of the lower metal layer; A gate layer comprising a first outer connection layer located on top of the semiconductor layer, located in the peripheral region, and electrically connected to the first extension line; A first metal layer comprising a second outer connection layer located above the gate layer, located in the surrounding region, and electrically connected to the first outer connection layer; and A second metal layer located on top of the first metal layer, extending from the surrounding area into the display area and including a first data line electrically connected to the second outer connection layer in the surrounding area; A display device having
12. In Paragraph 11, The above semiconductor layer includes a switching semiconductor layer for a switching transistor located within the display area, and The first metal layer further includes a first transfer layer located within the display area, and A display device in which the first data line is electrically connected to the switching semiconductor layer through the first transmission layer.
13. In Paragraph 12, A display device comprising a switching gate electrode located on top of the switching semiconductor layer, wherein the gate layer further comprises a switching gate electrode.
14. Substrate; A lower metal layer located on the substrate and including a first extension line extending from a peripheral area outside the display area into the display area; A semiconductor layer located on top of the lower metal layer; A gate layer located on top of the semiconductor layer; A first metal layer located above the gate layer; and A second metal layer located on top of the first metal layer, extending from the surrounding area into the display area and including a first data line electrically connected to the first extension line in the surrounding area; A display device comprising, wherein an insulating layer is interposed between the lower metal layer, the semiconductor layer, the gate layer, the first metal layer, and the second metal layer.
15. Substrate; A lower metal layer located on the substrate and including a first extension line extending from a peripheral area outside the display area into the display area; A semiconductor layer located on top of the lower metal layer; A gate layer located on top of the semiconductor layer; A first metal layer located above the gate layer; A second metal layer located on top of the first metal layer, extending from the surrounding area into the display area and including a first data line electrically connected to the first extension line in the surrounding area; A pixel electrode located on the upper part of the second metal layer; An intermediate layer located on the pixel electrode and comprising a light-emitting layer; and A counter electrode located on the intermediate layer above; A display device further comprising
16. Substrate; A lower metal layer comprising: a first extension line located on the substrate and extending into the display area from a peripheral area outside the display area; and a second extension line located within the display area, connected to the first extension line, and extending in a direction intersecting the extension direction of the first extension line. A semiconductor layer located on top of the lower metal layer; A gate layer located on top of the semiconductor layer; A first metal layer located above the gate layer; and A second metal layer located on top of the first metal layer, extending from the surrounding area into the display area and including a first data line electrically connected to the first extension line in the surrounding area; A display device having
17. In Paragraph 16, A display device comprising a lower metal layer that further includes a third extension line connected to the second extension line and extending from the display area to the surrounding area.
18. In Paragraph 17, A display device in which the third extension line is extended in an extension direction parallel to the extension direction of the first extension line.
19. In Paragraph 17, A display device further comprising a first input line located above the third extension line in the above surrounding area and electrically connected to the third extension line.

Description

Display apparatus Embodiments of the present invention relate to a display device, and more specifically, to a display device that can reduce the area of the surrounding region while having a simple structure. Generally, a display device includes a plurality of pixels, and each of the plurality of pixels includes a display element and a pixel circuit for controlling the display element. The pixel circuit includes a thin film transistor (TFT), a capacitor, and wiring, etc. These pixel circuits control the brightness of the pixels according to the transmitted data signals, etc. The data signals are transmitted to the pixels via data lines from a driver located in the peripheral area outside the display area. FIG. 1 is a plan view schematically illustrating a part of a display device according to one embodiment of the present invention. FIG. 2 is a side view schematically illustrating the display device of FIG. 1. FIG. 3 is a plan view schematically illustrating a part of a display device according to one embodiment of the present invention. FIGS. 4 and FIGS. 5 are schematic plan views showing enlarged portion A of FIG. 3. FIG. 6 is an equivalent circuit diagram of a pixel included in a display device according to one embodiment of the present invention. FIG. 7 is a schematic layout diagram illustrating the positions of transistors and capacitors, etc., in a pixel included in a display device according to one embodiment of the present invention. FIGS. 8 to 12 are plan views illustrating the components of FIG. 7, such as transistors and capacitors, layer by layer. FIG. 13 is a cross-sectional view schematically illustrating a part of a display device according to one embodiment of the present invention. FIG. 14 is a plan view schematically illustrating a layer included in a display device according to one embodiment of the present invention. The present invention is capable of various modifications and may have various embodiments; specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various forms. Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the drawings, identical or corresponding components are given the same reference numerals, and redundant descriptions thereof will be omitted. In the following embodiments, when various components such as layers, films, regions, and plates are described as being "on" another component, this includes not only cases where they are "directly on" another component, but also cases where other components are interposed between them. Furthermore, for convenience of explanation, the size of components in the drawings may be exaggerated or reduced. For example, the size and thickness of each component shown in the drawings are depicted arbitrarily for convenience of explanation, so the present invention is not necessarily limited to what is illustrated. In the following embodiments, the x-axis, y-axis, and z-axis are not limited to three axes in an orthogonal coordinate system and can be interpreted in a broader sense that includes them. For example, the x-axis, y-axis, and z-axis may be orthogonal to each other, but they may also refer to different directions that are not orthogonal to each other. FIG. 1 is a plan view schematically illustrating a part of a display device according to one embodiment of the present invention, and FIG. 2 is a side view schematically illustrating the display device of FIG. 1. Referring to FIGS. 1 and 2, a display device according to the present embodiment includes a display panel (10). Any display device that includes a display panel (10) is possible. For example, the display device may be various devices such as a smartphone, tablet, laptop, television, or billboard. The display panel (10) includes a display area (DA) and a peripheral area (PA) outside the display area (DA). The display area (DA) is a portion that displays an image and may have multiple pixels arranged therein. The display area (DA) may have various shapes, such as a circle, an ellipse, a polygon, or a specific geometric shape. In FIG. 1, the display area (DA) is shown as having a roughly rectangular shape with rounded corners. The peripheral area (PA) is located outside the display area (DA). The peripheral area (PA) may include a first peripheral area (PA1) positioned to roughly surround the display area (DA), and a second peripheral area (PA2) located below the display area (DA) in the (-y direction) and extending in a direction away from the display area (DA) in the (-y direction). The width of the second peripheral area (PA2) i