US-12628511-B2 - Display apparatus

Abstract

A display apparatus includes: a first semiconductor layer on a substrate; a first gate layer on the first semiconductor layer, and including a driving gate electrode; a second gate layer on the first gate layer, and including an initialization gate line extending in a first direction; a second semiconductor layer on the second gate layer, and including a shield layer to receive a constant voltage; a second connection electrode layer on the second semiconductor layer, and including a horizontal connection line extending in the first direction; and a third connection electrode layer on the second connection electrode layer, and including a vertical connection line extending in a second direction crossing the first direction.

Inventors

• Wonse Lee
• Seungwoo SUNG
• Yunkyeong In
• Yujin Jeon

Assignees

• SAMSUNG DISPLAY CO., LTD.

Dates

Publication Date

20260512

Application Date

20230329

Priority Date

20220801

Claims (20)

1. 1 . A display apparatus comprising: a first semiconductor layer on a substrate; a first gate layer on the first semiconductor layer, and comprising a driving gate electrode; a second gate layer on the first gate layer, and comprising an initialization gate line extending in a first direction; a second semiconductor layer on the second gate layer, and comprising a shield layer configured to receive a constant voltage; a second connection electrode layer on the second semiconductor layer, and comprising a horizontal connection line extending in the first direction; and a third connection electrode layer on the second connection electrode layer, and comprising a vertical connection line extending in a second direction crossing the first direction, wherein the second gate layer further comprises a first initialization voltage line extending in the first direction, and the shield layer is electrically connected to the first initialization voltage line.
2. 2 . The display apparatus of claim 1 , further comprising a first connection electrode layer on the second semiconductor layer, and comprising a connection electrode electrically connecting the shield layer to the first initialization voltage line, wherein the second connection electrode layer is on the first connection electrode layer.
3. 3 . The display apparatus of claim 1 , wherein the second semiconductor layer comprises an oxide semiconductor layer overlapping with the initialization gate line, and the shield layer comprises a same material as that of the oxide semiconductor layer.
4. 4 . The display apparatus of claim 3 , wherein the shield layer and the oxide semiconductor layer are integral with each other as a single body.
5. 5 . The display apparatus of claim 3 , wherein the shield layer extends in the first direction.
6. 6 . The display apparatus of claim 5 , wherein the shield layer is an integral single body with respect to pixels located along the first direction.
7. 7 . The display apparatus of claim 3 , wherein the shield layer overlaps with the horizontal connection line.
8. 8 . The display apparatus of claim 7 , wherein the horizontal connection line is located within the shield layer in a plan view.
9. 9 . The display apparatus of claim 3 , wherein the shield layer comprises a portion overlapping with the initialization gate line.
10. 10 . An electronic apparatus including the display apparatus of claim 1 .
11. 11 . The electronic apparatus of claim 10 , wherein the electronic apparatus is at least one of a smartphone, a tablet personal computer (PC), a laptop PC, a television (TV), or an advertisement board.
12. 12 . A display apparatus comprising: a first semiconductor layer on a substrate; a first gate layer on the first semiconductor layer, and comprising a driving gate electrode; a second gate layer on the first gate layer, and comprising an initialization gate line extending in a first direction; a second semiconductor layer on the second gate layer, and comprising a shield laver configured to receive a constant voltage; a second connection electrode layer on the second semiconductor layer, and comprising a horizontal connection line extending in the first direction; and a third connection electrode layer on the second connection electrode layer, and comprising a vertical connection line extending in a second direction crossing the first direction, wherein the third connection electrode layer further comprises a data line extending in the second direction, and the vertical connection line is electrically connected to the data line and the horizontal connection line.
13. 13 . The display apparatus of claim 12 , wherein the substrate comprises a display area, and a peripheral area outside the display area, and wherein the vertical connection line is electrically connected to the data line at the peripheral area.
14. 14 . The display apparatus of claim 13 , wherein the vertical connection line and the data line are integral with each other as a single body.
15. 15 . The display apparatus of claim 13 , wherein the horizontal connection line is electrically connected to the vertical connection line at the display area.
16. 16 . The display apparatus of claim 13 , wherein the vertical connection line is connected to the horizontal connection line via a contact hole, and wherein the second connection electrode layer further comprises an auxiliary horizontal connection line spaced from the horizontal connection line, the auxiliary horizontal connection line being electrically insulated from the horizontal connection line and the data line, and having an extension axis that is the same as an extension axis of the horizontal connection line.
17. 17 . The display apparatus of claim 16 , wherein the shield layer extends in the first direction, overlaps with the horizontal connection line, and does not overlap with the auxiliary horizontal connection line.
18. 18 . An electronic apparatus including the display apparatus of claim 12 .
19. 19 . The electronic apparatus of claim 18 , wherein the electronic apparatus is at least one of a smartphone, a tablet personal computer (PC), a laptop PC, a television (TV), or an advertisement board.
20. 20 . A display apparatus comprising: a first semiconductor layer on a substrate; a first gate layer on the first semiconductor layer, and comprising a driving gate electrode; a second gate layer on the first gate layer, and comprising an initialization gate line extending in a first direction; a second semiconductor layer on the second gate layer, and comprising a shield layer configured to receive a constant voltage; a second connection electrode layer on the second semiconductor layer, and comprising a horizontal connection line extending in the first direction; a third connection electrode layer on the second connection electrode layer, and comprising a vertical connection line extending in a second direction crossing the first direction; and a first connection electrode layer on the second semiconductor layer, and comprising a second initialization voltage line extending in the first direction, wherein the second connection electrode layer is on the first connection electrode layer, and the shield layer is electrically connected to the second initialization voltage line.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application claims priority to and the benefit of Korean Patent Application No. 10-2022-0095685, filed on Aug. 1, 2022, in the Korean Intellectual Property Office, the entire disclosure of which is incorporated by reference herein. BACKGROUND 1. Field Aspects of one or more embodiments relate to a display apparatus, and more particularly, to a display apparatus capable of displaying a high-quality image. 2. Description of the Related Art In general, in a display apparatus, such as an organic light-emitting display apparatus, thin-film transistors are arranged in each (sub)pixel to control the luminance of each (sub)pixel. These thin-film transistors control the luminance of a corresponding (sub)pixel according to a transmitted data signal and/or the like. The data signal is transmitted from a driver to each corresponding (sub)pixel through a data line. The driver is located in a peripheral area outside a display area. The above information disclosed in this Background section is for enhancement of understanding of the background of the present disclosure, and therefore, it may contain information that does not constitute prior art. SUMMARY In a display apparatus, the quality of an image displayed at (e.g., in or on) a display area may deteriorate when the area of a region where a driver is located is wide, or the area is reduced. One or more embodiments of the present disclosure are directed to a display apparatus capable of displaying a high-quality image. However, the aspects, features, and scope of the present disclosure are not limited thereto. Additional aspects and features will be set forth, in part, in the description that follows, and in part, will be apparent from the description, or may be learned by practicing one or more of the presented embodiments of the present disclosure. According to one or more embodiments of the present disclosure, a display apparatus includes: a first semiconductor layer on a substrate; a first gate layer on the first semiconductor layer, and including a driving gate electrode; a second gate layer on the first gate layer, and including an initialization gate line extending in a first direction; a second semiconductor layer on the second gate layer, and including a shield layer configured to receive a constant voltage; a second connection electrode layer on the second semiconductor layer, and including a horizontal connection line extending in the first direction; and a third connection electrode layer on the second connection electrode layer, and including a vertical connection line extending in a second direction crossing the first direction. In an embodiment, the second gate layer may further include a first initialization voltage line extending in the first direction, and the shield layer may be electrically connected to the first initialization voltage line. In an embodiment, the display apparatus may further include a first connection electrode layer on the second semiconductor layer, and including a connection electrode electrically connecting the shield layer to the first initialization voltage line, and the second connection electrode layer may be on the first connection electrode layer. In an embodiment, the second semiconductor layer may include an oxide semiconductor layer overlapping with the initialization gate line, and the shield layer may include a same material as that of the oxide semiconductor layer. In an embodiment, the shield layer and the oxide semiconductor layer may be integral with each other as a single body. In an embodiment, the shield layer may extend in the first direction. In an embodiment, the shield layer may be an integral single body with respect to pixels located along the first direction. In an embodiment, the shield layer may overlap with the horizontal connection line. In an embodiment, the horizontal connection line may be located within the shield layer in a plan view. In an embodiment, the shield layer may include a portion overlapping with the initialization gate line. In an embodiment, the third connection electrode layer may further include a data line extending in the second direction, and the vertical connection line may be electrically connected to the data line and the horizontal connection line. In an embodiment, the substrate may include a display area, and a peripheral area outside the display area, and the vertical connection line may be electrically connected to the data line at the peripheral area. In an embodiment, the vertical connection line and the data line may be integral with each other as a single body. In an embodiment, the horizontal connection line may be electrically connected to the vertical connection line at the display area. In an embodiment, the vertical connection line may be connected to the horizontal connection line via a contact hole, and the second connection electrode layer may further include an auxiliary horizontal connection line spaced from the