元の名称記録: Beijing BOE Technology Development Co., Ltd.; BOE Technology Group Co., Ltd.

A computer-implemented method and apparatus, and a computer program product. The computer-implemented method comprises: by means of a first input interface, receiving a material query instruction inputted by a user; in response to the material query instruction, acquiring, from a data source, data of a plurality of materials for manufacturing one or more product components, wherein the data of the plurality of materials comprises the available inventory of the plurality of materials; calculating the maximum consumption of the plurality of materials with respect to at least one of the one or more product components; and according to the maximum consumption of the corresponding materials of the plurality of materials and the available inventory of the corresponding materials of the plurality of materials, determining whether the amount of one or more materials for manufacturing the one or more product components is insufficient.

An antenna unit and a preparation method therefor, an antenna array, and an electronic device. The antenna array comprises at least one antenna unit. The antenna unit comprises: a substrate () comprising a first surface and a second surface which are arranged opposite to each other in the thickness direction of the substrate (); a first radiation patch () disposed on the first surface of the substrate (); feed lines () disposed on the first surface of the substrate (), the feed lines () being connected to the first radiation patch (); and a second radiation patch () suspended on the side of the first radiation patch () away from the substrate (), the orthographic projection of the second radiation patch () on the substrate () overlapping the orthographic projection of the first radiation patch () on the substrate ().

A display substrate, display panel, and display device. The display substrate comprises an active layer, a first insulating layer, a first metal layer, a second insulating layer, and a first conductive electrode sequentially arranged on a base; the first metal layer comprises a gate and a first electrode; the portion, exposed through a first via hole formed in the first insulating layer, of the active layer comprises first and second sub-portions; the first electrode is in lap joint with the first sub-portion by the first via hole; a second via hole is formed in the second insulating layer and located on the side, distant from the gate, of a partition boundary of the first and second sub-portions; orthographic projections of the second via hole and the first electrode on the base partially overlap; and the first conductive electrode is connected to the first electrode by the second via hole.