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Display device with opening pattern

專利號
US11770968B2
公開日期
2023-09-26
申請人
Samsung Display Co., Ltd.（KR Yongin-si）
發(fā)明人
Junwon Choi; Wonkyu Kwak; Changsoo Pyon
IPC分類
G06F3/045; H10K77/10; G06F3/044; H10K50/844; H10K59/40; H10K59/123; H10K59/124; H01L27/12
技術(shù)領(lǐng)域
layer,display,may,area,bending,electrode,film,thin,inorganic,transistor
地域： Yongin-si

摘要

A display device having improved reliability includes a substrate including a display area and a peripheral area outside the display area. The display area includes a central display area, a first bending display area contacting the central display area and bent about a first bending axis, and a second bending display area bent about a second bending axis intersecting the first bending axis. The peripheral area includes a corner area rounded and adjacent to the first bending display area and the second bending display area. This display device includes an inorganic layer disposed at the display area and the peripheral area, an opening pattern formed in the inorganic layer and corresponding to the corner area, and a first organic material layer covering the opening pattern.

說明書

CROSS-REFERENCE TO RELATED APPLICATION

This is a divisional application of U.S. patent application Ser. No. 16/822,914, filed Mar. 18, 2020 (now pending U.S. Pat. No. 11,424,422), the disclosure of which is incorporated herein by reference in its entirety. U.S. patent application Ser. No. 16/822,914 claims priority to and benefits of Korean Patent Application No. 10-2019-0117569 under 35 U.S.C. § 119, filed in the Korean Intellectual Property Office on Sep. 24, 2019, the entire contents of which are incorporated herein by reference.

BACKGROUND 1. Field

One or more embodiments relate to a display device having improved reliability.

2. Description of Related Art

Among display devices, organic light-emitting display devices have been highlighted as next-generation display devices due to their wide viewing angles, high contrast, and fast response speeds.

In general, an organic light-emitting display device may be formed with thin-film transistors and organic light-emitting diodes arranged on a substrate, and may operate through the organic light-emitting diodes which may themselves emit light. An organic light-emitting display device may be used as a display in various products ranging from a small-sized product such as a mobile phone to a large-sized product such as a television.

A display device such as an organic light-emitting display device may include a display on a substrate. By bending at least part of a display device, visibility from various angles may be improved and/or the area of a non-display area may be reduced.

權(quán)利要求

1
What is claimed is:1. A display device comprising:a flexible substrate comprising:a display area; anda peripheral area outside of the display area;an inorganic layer on the flexible substrate;an opening pattern formed in the inorganic layer and corresponding to the peripheral area;an insulating layer disposed on the inorganic layer and corresponding to the peripheral area;a first organic material layer disposed on the flexible substrate and covering the opening pattern;a first dam portion spaced apart from the opening pattern and disposed between the opening pattern and an edge of the flexible substrate;an organic light-emitting diode over the inorganic layer; anda thin film encapsulation layer dispose on the organic light-emitting diode and the thin film encapsulation layer including at least one organic encapsulation layer and at least one inorganic encapsulation layer:wherein the thin film encapsulation layer does not overlap the opening pattern.2. The display device of claim 1, wherein a portion of the inorganic layer is removed to form the opening pattern.3. The display device of claim 2, wherein the first organic material layer is directly on a portion of the flexible substrate from which the portion of the inorganic layer is removed.4. The display device of claim 1, wherein the opening pattern has a slit structure corresponding to the peripheral area.5. The display device of claim 1, wherein the opening pattern has a grating structure corresponding to the peripheral area.6. The display device of claim 5, wherein the grating structure includes a portion of the inorganic layer and the insulating layer in a center portion of the opening pattern.7. The display device of claim 1, further comprising:thin-film transistors over the flexible substrate;a first planarization layer disposed on the thin-film transistors; anda second planarization layer on the first planarization layer.8. The display device of claim 7, wherein the first organic material layer and the second planarization layer include a same material.9. The display device of claim 1, wherein the first organic material layer is disposed on the first dam portion.10. The display device of claim 9, wherein the first dam portion includes a first insulating layer on the inorganic layer, a second insulating layer on the first insulating layer, and a third insulating layer on the second insulating layer.11. The display device of claim 9, wherein the first dam portion includes a first insulating layer directly on the inorganic layer, a second insulating layer directly on the first insulating layer, and a third insulating layer directly on the second insulating layer.12. The display device of claim 1, wherein the first organic material layer covers an entirety of the first dam portion.13. The display device of claim 1, wherein the first dam portion includes a first dam and a second dam spaced apart from the first dam.
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