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Display panel and manufacturing method thereof, alignment method

專利號
US12178085B2
公開日期
2024-12-24
申請人
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.

說明書

The display substrate 10 further includes a plurality of cover plate alignment marks 14 configured for aligning the display substrate 10 with the cover plate 30. The plurality of cover plate alignment marks 14 are located in the frame region. By arranging the plurality of cover plate alignment marks 14 in the frame region, it is able to prevent the plurality of cover plate alignment marks 14 from affecting the display effect. In some embodiments, 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 display region, that is, between the dam glue region and the display region (as illustrated by FIG. 1A) and the at least one of the plurality of cover plate alignment marks 14 is overlapped with the second inorganic encapsulation layer EPL2 in a direction perpendicular to the base substrate 11 (as illustrated by FIGS. 1C, 1D, 1F, and 2B), and an orthographic projection of at least another 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 (as illustrated by FIG. 1A), i.e., is located between the dam glue region and the cutting region.

權(quán)利要求

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