Abstract: A display panel and a display device are provided. The display panel comprises a first substrate (1) and a second substrate (2) provided opposite to each other, and a spacer (101) provided between the first substrate (1) and the second substrate (2). The spacer (101) is covered with an alignment film (4), both the first substrate (1) and the second substrate (2) includes an active display region (102) and a non-display region (103), the spacer (101) is provided in the non-display region (103) of the first substrate (1) and the non-display region (103) of the second substrate (2). A minimum distance value from an edge of the spacer (101), which is an edge closest to the active display region (102) along a rubbing direction of the alignment film (4), to the active display region (102) along the rubbing direction of the alignment film (4) is within a preset range for avoiding light leakage caused by the spacer.

Abstract: A display substrate includes at least two substrate regions to be cut which is arranged in an array; a seal agent which is disposed on a surface of the display substrate and is coated around the substrate region to be cut; and a barrier wall which is disposed between adjacent substrate regions to be cut and is configured to block the seal agent. A method for manufacturing the display substrate and a liquid crystal display device comprising the display substrate are further disclosed.

Abstract: This disclosure provides a method for cleaning a substrate having an orientated film formed thereon and relates to the technical field of display. By using this cleaning method, the orientation abnormality due to the residue of a rayon rubbing cloth on the orientated film is greatly improved, and the occurrence probability of white Mura on a display panel is reduced. The method for cleaning a substrate having an orientated film formed thereon comprises the steps of subjecting the orientated film to a cooling treatment so that the temperature of the orientated film is lowered by 10° C. to 30° C. in a time period ranging from 10 s to 40 s; and cleaning the orientated film after the cooling treatment. This method is useful for cleaning a substrate having an orientated film formed thereon.

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.