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Display panel and manufacturing method thereof and display apparatus

專利號
US12133435B2
公開日期
2024-10-29
申請人
KunShan Go-Visionox Opto-Electronics Co., Ltd（CN Kunshan）
發(fā)明人
Mingxing Liu; Zhiyuan Zhang; Panpan Wang; Chao Chi Peng; Shuaiyan Gan; Weili Li
IPC分類
H10K59/30; H10K50/852; H10K71/00
技術(shù)領(lǐng)域
sub,layer,display,electrode,pixel,common,second,emitting,123a,first
地域： Jiangsu

摘要

The present application discloses a display panel and manufacturing method thereof and a display apparatus. The display panel includes: a first sub-pixel disposed in the first display area and including a first light-emitting structure, and the first light-emitting structure including at least one first common layer disposed between the first electrode and the second electrode; and a second sub-pixel disposed in the second display area and including a second light-emitting structure, and the second light-emitting structure including at least one second common layer disposed between the third electrode and the fourth electrode, in which a thickness of the fourth electrode is smaller than a thickness of the second electrode, and a total thickness of the at least one second common layer is greater than a total thickness of the at least one first common layer.

說明書

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
CROSS REFERENCE TO RELATED APPLICATION

The present application is a continuation of International Application No. PCT/CN2020/108654 filed on Aug. 12, 2020, which claims the benefit of priority to Chinese Patent Application No. 201911141789.1 filed on Nov. 20, 2019, both of which are incorporated herein by reference in their entireties.

TECHNICAL FIELD

The present application relates to the field of display, and particularly to a display panel and manufacturing method thereof and a display apparatus.

BACKGROUND

Organic Light-Emitting Diode (Organic Light-Emitting Diode, OLED) display panels are widely used in various consumer electronics such as mobile phones, TVs, personal digital assistants, digital cameras, notebook computers and desktop computers for high image quality, power saving, thin body and wide application and the like, which have become the mainstream of display apparatuses.

The sub-pixel structure of the OLED display panel includes an anode, a light-emitting structure and a cathode, which can be formed through evaporation. Nonetheless, taking the evaporation of the cathode as an example, part of the OLED display panel may be shielded during the evaporation, thus the cathode in the shielded area and the cathode in other unshielded area are different in thickness, resulting in that the display color coordinates of the sub-pixel in the shielded area and the sub-pixel in the unshielded area are different.

SUMMARY

The present application provides a display panel and manufacturing method thereof and a display apparatus.

權(quán)利要求

1
What is claimed is:1. A display panel comprising:a first display area;a light-transmitting area, wherein the first display area surrounds the light-transmitting area;a first non-display area, wherein the first non-display area surrounds both the first display area and the light-transmitting area;a second display area adjacent to the first display area;a first sub-pixel disposed in the first display area and comprising a first electrode, a first light-emitting structure disposed on the first electrode, and a second electrode disposed on the first light-emitting structure, the first light-emitting structure comprising:at least one first common layer disposed between the first electrode and the second electrode, anda first emitting layer, wherein the at least one first common layer comprises a first sub-common layer disposed between the first electrode and the first emitting layer and a second sub-common layer disposed between the first emitting layer and the second electrode, and the second sub-common layer comprises both an electron inject layer and an electron transport layer; anda second sub-pixel disposed in the second display area and comprising a third electrode, a second light-emitting structure disposed on the third electrode, and a fourth electrode disposed on the second light-emitting structure, the second light-emitting structure comprising:at least one second common layer disposed between the third electrode and the fourth electrode, anda second emitting layer, wherein the at least one second common layer comprises a third sub-common layer disposed between the third electrode and the second emitting layer and a fourth sub-common layer disposed between the second emitting layer and the fourth electrode, the fourth sub-common layer comprises both an electron inject layer and an electron transport layer, a thickness of the third sub-common layer is greater than a thickness of the first sub-common layer, a thickness of the fourth sub-common layer is greater than a thickness of the second sub-common layer, a thickness of the fourth electrode is smaller than a thickness of the second electrode, a total thickness of the at least one second common layer is greater than a total thickness of the at least one first common layer.2. The display panel of claim 1, further comprising:a light-transmitting area, wherein the second display area extends from the light-transmitting area through the first display area to be connected with the first non-display area.3. The display panel of claim 2, wherein the light-transmitting area is a second non-display area.4. The display panel of claim 2, wherein the light-transmitting area is a third display area, and a transmittance of the third display area is greater than a transmittance of the first display area.5. The display panel of claim 4, wherein a transmittance of the light-transmitting area is greater than or equal to 15%.6. The display panel of claim 1, wherein a thickness of the third sub-common layer is greater than a thickness of the first sub-common layer.7. The display panel of claim 1, wherein the first sub-common layer and the third sub-common layer respectively comprise a hole inject layer and a hole transport layer, and the first electrode, the hole inject layer, the hole transport layer, and the first emitting layer are stacked in sequence.8. The display panel of claim 1, wherein the third sub-common layers are spaced from each other.9. The display panel of claim 1, wherein the fourth sub-common layers are spaced from each other.10. The display panel of claim 1, wherein the third sub-common layers are interconnected.11. The display panel of claim 10, wherein the third sub-common layer of the second display area and the first sub-common layer of the first display area are interconnected.12. The display panel of claim 1, wherein the fourth sub-common layers of adjacent second sub-pixels are interconnected.13. The display panel of claim 12, wherein the fourth sub-common layer of the second display area and the second sub-common layer of the first display area are interconnected.14. A display apparatus comprising the display panel of claim 1.15. The display panel of claim 1, wherein the second sub-common layer and the fourth sub-common layer respectively comprise an electron inject layer and an electron transport layer, and the second emitting layer, the electron transport layer, the electron inject layer, and the fourth electrode are stacked in sequence.16. The display panel of claim 1, wherein a thickness of the fourth sub-common layer is greater than a thickness of the second sub-common layer.
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