Abstract: This application discloses a perovskite solar cell having a hole transport layer with comb fiber structures and a preparation method thereof. In one aspect, a perovskite solar cell includes a perovskite absorption layer, a transparent electrode layer and a hole transport layer with comb fiber structures that is on the transparent electrode layer. The hole transport layer with comb fiber structures includes a polythiophene-based polymer hole transport material.

Abstract: A bracket comprises a base, a working panel, at least one first motion mechanism and at least one second motion mechanism. The working panel is supported by the base and is configured to be suitable for supporting an object to be supported. The at least one first motion mechanism is connected between the working panel and the base and comprises a first member connected to the working panel, the first member being configured to be movable in a first direction. The at least one second motion mechanism comprises a first end connected to the working panel and a second end connected to the base, the second motion mechanism being configured to enable the first end to perform relative motion relative to the second end, the relative motion comprising motion in a second direction different from the first direction.

Abstract: A display panel has a display region, an opening region, and an opening peripheral region; the opening peripheral region includes a first isolation region surrounding the opening region; the display panel includes a substrate, a driving circuit layer and first isolation columns; at least one insulating layer of the driving circuit layer is located in the display region and the opening peripheral region; the first isolation columns are disposed on the at least one layer of insulating layer and located in the first isolation region; each first isolation column surrounds the opening region; the first isolation columns are arranged at intervals along a radial direction of the opening region; a portion of the at least one insulating layer located between at least two adjacent first isolation columns is provided therein with a groove; and a filling layer made of an organic material is filled in the groove.

Abstract: Provided is a display device. The display device includes: a support base, a support frame connected to the support base, a glass panel connected to the first support surface, and a display disposed within a cavity formed by the support frame, the support base, and the glass panel. The display is connected to the support frame. The support frame includes: a plurality of support bars, and a movable connection member disposed between each two support bars of the plurality of support bars and configured to connect the two support bars, wherein each of the support bar and the movable connection member is provided with a first support surface, and the movable connection member is configured to move between the two support bars to adjust a size of the support frame.

Abstract: A display device, comprising frame assembly (EE) that comprises a plurality of first frames (E1) located above and on two sides of the display module (MDL), the first frame (E1) comprises a first inner side wall (E11), a first outer side wall (E12) and a connecting side wall, and the connecting side wall comprising a first connecting side wall (E131) and a second connecting side wall (E132), which is located on the front side of the first connecting side wall (E131); the first connecting side wall (E131), the second connecting side wall (E132), the first inner side wall (E11) and the first outer side wall (E12) form a first cavity (E1A); and the first inner side wall (E11) is connected to the display module (MDL) by means of a screw (DD1), which has an end cap located in the first cavity (E1A).

Abstract: A differentiated real-time injection-production optimization adjustment method of an intelligent injection-production linkage device belongs to the field of oil reservoir injection-production technologies.

Abstract: There is provided a display apparatus, including: a display module; a first side frame and a second side frame on two sides of the display module in a width direction of the display module; a fixing structure on a non-light-emitting side of the display module and detachably connected to the first side frame and the second side frame, the fixing structure being configured to fix the display module; and an adapter, including a first connection part and a second connection part which are fixedly connected. At least one of a first side surface of the first side frame facing the display module or a second side surface of the second side frame facing the display module is detachably connected to the first connection part, and the second connection part is detachably connected to the fixing structure.

Abstract: Provided are a perovskite cell and a photovoltaic module. The perovskite cell includes a perovskite light absorption layer, a first carrier transport layer, a second carrier transport layer, a first transparent electrode layer, a second transparent electrode layer, and an optical adjustment layer, wherein the optical adjustment layer is arranged between the second carrier transport layer and the second transparent electrode layer; and the transmittance of the optical adjustment layer for visible light is greater than or equal to a preset transmittance, and the reflectivity of the optical adjustment layer for infrared light is greater than or equal to a preset reflectivity.