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Display panel and manufacturing method thereof, alignment method

專(zhuān)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(lèi)
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(shū)

The display substrate 10 further includes an encapsulation layer EPL, which is located on a side of the plurality of light emitting elements 12 away from the base substrate 11, for preventing water, oxygen and the like in the air from corroding the plurality of light emitting elements 12. In some embodiments, the encapsulation layer EPL includes a first inorganic encapsulation layer EPL1, a first organic encapsulation layer EPL3, and a second inorganic encapsulation layer EPL2 (as illustrated by FIG. 1B) arranged in sequence in a direction away from the base substrate 11, that is, distances from the first inorganic encapsulation layer EPL1, the first organic encapsulation layer EPL3, and the second inorganic encapsulation layer EPL2 to the base substrate 11 gradually increase.

The display panel includes a display region (i.e., a region surrounded by the dashed line Ain FIG. 1A, FIG. 2A and FIG. 1H) and a frame region at a periphery of the display region, the frame region includes a dam glue region where an annular dam glue 50 is located (i.e., a region between the dashed line D and the dashed line E in FIG. 1H) and an annular cutting region outside the dam glue 50 (i.e., the cutting region is located on a side of the dam glue 50 away from the display region, i.e., an orthographic projection of the dam glue 50 on the base substrate 11 is located between the display region and the cutting region).

權(quán)利要求

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