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Display panel and manufacturing method thereof, alignment method

專利號(hào)
US12178085B2
公開日期
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.

說明書

For example, the maximum size of the orthographic projection of the cover plate alignment mark 14 on the base substrate 11 in the first direction X is also several hundred microns, such as ranges from about 150 microns to 600 microns, such as about 300 microns to 500 microns, and the size of the orthographic projection of the cover plate alignment mark 14 in the first direction X is smaller than its size in the second direction Y, so as to further improve the identifiability of the cover plate alignment mark 14 and further improve the alignment accuracy.

For example, the orthographic projection of the cover plate alignment mark 14 on the base substrate 11 includes at least one shape selected from a group consisting of a T shape (as illustrated in FIG. 1A), a cross shape, and an L shape, or the orthographic projection of the cover plate alignment mark 14 is in any other easily recognizable shape. For example, the shape of the orthographic projection of the cover plate alignment mark 14 on the base substrate 11 is an integrated structure, for example, the T shape, the cross shape and the L shape are all integrated structures. In other embodiments, the shape of the orthographic projection of the cover plate alignment mark 14 on the base substrate 11 may also include a plurality of discrete portions, for example, the orthographic projection of the alignment mark 14 includes a plurality of spaced concentric circles. Embodiments of the present disclosure include, but are not limited to, these enumerate shapes.

權(quán)利要求

1
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