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Display panel and manufacturing method thereof, alignment method

專利號(hào)
US12178085B2
公開(kāi)日期
2024-12-24
申請(qǐng)人
Chengdu BOE Optoelectronics Technology Co., Ltd.; BOE TECHNOLOGY GROUP CO., LTD.(CN Beijing CN Sichuan)
發(fā)明人
Bo Cheng; Xiangdan Dong; Jun Yan; Fan He; Qi Liu; Hongwei Ma
IPC分類
H10K59/122; H10K50/844; H10K59/12; H10K71/00; H10K77/10
技術(shù)領(lǐng)域
layer,alignment,substrate,dam,marks,plate,cover,region,display,epl2
地域: Chengdu

摘要

A display panel includes a display substrate and a cover plate connected through an optical adhesive layer. The display substrate includes a plurality of light emitting elements, a pixel defining layer, and an encapsulation layer; the encapsulation layer includes a first inorganic encapsulation layer, a first organic encapsulation layer, and a second inorganic encapsulation layer; the display panel includes a display region and a frame region including a cutting region and a dam glue region where a dam glue is located; at least one of a plurality of cover plate alignment marks is between the dam glue and the display region and is overlapped with the second inorganic encapsulation layer, and at least one of the plurality of cover plate alignment marks is between the dam glue and the cutting region.

說(shuō)明書

In the embodiments of the disclosure, because the plurality of cover plate alignment marks 14 included in the display substrate 10 are located in at least one metal layer included in the touch structure, each of the plurality of cover plate alignment marks 14 can have a relatively large size without increasing the size of the frame region, which is convenient for the alignment between the display substrate 10 and the cover plate 30 included in the display panel, thereby improving the alignment accuracy, avoiding the phenomenon that edges of the display region are blurred in a display panel, especially in a curved display panel (for example, a display panel with a curved edge region), and improving the production efficiency.

For example, as illustrated in FIG. 1A, the display panel includes a display region and a frame region located at the periphery of the display region, and the frame region includes an annular dam glue 50 and an annular cutting region located outside the dam glue 50. An orthographic projection of at least one of the plurality of cover plate alignment marks 14 included in the display substrate 10 on the base substrate 11 is located between an orthographic projection of the dam glue 50 on the base substrate 11 and the display region and is overlapped with the second inorganic encapsulation layer EPL2 in a direction perpendicular to the base substrate 11, and/or an orthographic projection of at least one of the plurality of cover plate alignment marks 14 on the base substrate is located between the orthographic projection of the dam glue 50 on the base substrate and the cutting region.

權(quán)利要求

1
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