Abstract: A flow deflector, an inkjet printing method, an inkjet printing device, and a method for manufacturing a display substrate are provided. The flow deflector includes a plate-shaped body, and the plate-shaped body includes a first surface and a second surface opposite to each other, a plurality of through holes is arranged in the plate-shaped body, each of the plurality of through holes penetrates from the first surface to the second surface, and comprises a first opening formed on the first surface and a second opening formed on the second surface, and an opening area of the first opening is larger than an opening area of the second opening.

Abstract: The present disclosure provides a double-sided display OLED array substrate, its manufacturing method, and a display device. The double-sided display OLED array substrate includes a first base substrate, a second base substrate, a first OLED and a second OLED arranged between the first base substrate and the second base substrate, and a first TFT and a second TFT sharing an identical gate electrode and arranged between the first OLED and the second OLED, the first TFT being configured to drive the first OLED, and the second TFT being configured to drive the second OLED. According to the present disclosure, it is able to reduce a thickness of the double-sided display OLED array substrate, thereby to reduce the production cost thereof.

Abstract: The present invention discloses a prism sheet and a display device comprising the prism sheet for improving performances of a backlight module in a liquid crystal display device. The prism sheet comprises a first substrate and a second substrate, wherein the first substrate comprises a first surface and a second surface opposite to the first surface, and the second surface comprises a plurality of first protrusions arranged in parallel along a first direction; the second substrate comprises a third surface and a fourth surface opposite to the third surface, the third surface comprises a plurality of second protrusions arranged in parallel along the first direction, and the fourth surface comprises a plurality of third protrusions arranged in parallel along a second direction; and the second surface and the third surface are joined by meshing of the first protrusions with the second protrusions.