Shanghai Tianma Micro-electronics Co., Ltd.

Huawei Digital Power Technologies Co., Ltd.

Yuan Yao

Kai Xin

Xinyu Yu

Zhiyuan Zhang

Fuqiang Xu

A display panel and a method for forming a display panel and a display device are provided. The display panel includes a substrate structure including a first substrate; a first structure layer including at least one first film layer located on a side of the first substrate adjacent to a light-exiting surface of the display panel, and a second structure layer located on a side of the first structure layer away from the substrate structure. The substrate structure is adjacent to and in contact with the first structure layer, and the second structure layer is adjacent to and in contact with the first structure layer. An average refractive index of the substrate structure is n1, an average refractive index of the first structure layer is n2, a refractive index of the second structure layer is n3, and n1<n2<n3.

Display panel and fabrication method thereof, and display device

A power supply system, a converter, and a circulating current suppression method of the converter. The power supply system includes at least two converters that are coupled between a direct current power supply and an alternating current grid. Each converter obtains target output reactive power when an output current of the converter starts to increase from an initial current, obtains a reactive power compensation parameter based on the three-phase output voltages. Further, each converter obtains compensated output reactive power of the converter based on the reactive power compensation parameter and adjusts actual output reactive power of the converter based on the target output reactive power and the compensated output reactive power, so that an absolute value of a difference between common-mode output voltages of any two of the at least two adjusted converters is less than a difference threshold.

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Shanghai, China

Yuan Yao