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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(shuō)明書

For example, the second conductive layer comprises a first sub-conductive layer, a second sub-conductive layer, and a third sub-conductive layer which are sequentially arranged on the base substrate and connected in parallel; and the first sub-conductive layer is between the second sub-conductive layer and the base substrate in the direction perpendicular to the base substrate.

For example, the display panel further comprises at least one switching element, each of the at least one switching element comprises a gate electrode, a source electrode, and a drain electrode; each of the plurality of light emitting elements comprises a first electrode layer and a second electrode layer, the first sub-conductive layer is in a same layer and made of a same material as the source electrode and drain electrode, the second sub-conductive layer is in a same layer and made of a same material as the first electrode layer, and the third sub-conductive layer is in a same layer and made of a same material as the second electrode layer.

For example, the second frame region is provided with a circuit board alignment mark configured for bending the flexible circuit board, and an orthographic projection of the circuit board alignment mark on the base substrate is spaced apart from the orthographic projections of the plurality of cover plate alignment marks on the base substrate; and the orthographic projection of the circuit board alignment mark on the base substrate has a maximum size, an orthographic projection of each of the plurality of cover plate alignment marks on the base substrate has a maximum size, and the maximum size of the circuit board alignment mark is smaller than the maximum size of each of the plurality of cover plate alignment marks.

權(quán)利要求

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