Abstract: An alignment film printing device, configured to improve coating quality of an alignment film, includes at least one printing unit, and the printing unit each includes: a cylinder body with an opening at a bottom and an extract opening on a top; a vacuum extractor connected with the extract opening; a plunger provided inside the cylinder body, and configured to draw the alignment fluid from the opening to the cylinder body; a vacuum tester provided at the extract opening and configured to monitor a vacuum degree inside the cylinder body and above the plunger; a range finder provided inside the cylinder body and configured to monitor a distance from the plunger to a top of the cylinder body; and a control device in signal communication with the vacuum extractor, the vacuum tester and the range finder respectively and configured to control a volume of the alignment fluid drawn into the cylinder body according to test values of the vacuum tester and the range finder.

Abstract: The present disclosure provides a color filter substrate, a method for manufacturing the same, a display panel and a display device. The color filter substrate includes a plurality of color filters and a black matrix arranged between adjacent color filters. The color filter substrate further includes a position limiting unit arranged on the black matrix and configured to clamp at least one of data lines and gate lines on the array substrate.

Abstract: A liquid crystal display panel and a method for fabricating the same are disclosed. The liquid crystal display panel includes a first substrate (1) and a second substrate (2) disposed as opposed to each other, and a liquid crystal layer disposed between the first substrate (1) and the second substrate (2). A plurality of protrusions (7) are disposed on a side of the first substrate (1) facing the liquid crystal layer and/or on a side of the second substrate (2) facing the liquid crystal layer. The protrusions (7) may reduce the diffusion speed of the liquid crystals (4) between the first substrate (1) and the second substrate (2), thereby alleviating contamination between the liquid crystals (4) and the seal glue, which further improves the product quality.

Abstract: An alignment film printing device, configured to improve coating quality of an alignment film, includes at least one printing unit, and the printing unit each includes: a cylinder body with an opening at a bottom and an extract opening on a top; a vacuum extractor connected with the extract opening; a plunger provided inside the cylinder body, and configured to draw the alignment fluid from the opening to the cylinder body; a vacuum tester provided at the extract opening and configured to monitor a vacuum degree inside the cylinder body and above the plunger; a range finder provided inside the cylinder body and configured to monitor a distance from the plunger to a top of the cylinder body; and a control device in signal communication with the vacuum extractor, the vacuum tester and the range finder respectively and configured to control a volume of the alignment fluid drawn into the cylinder body according to test values of the vacuum tester and the range finder.