A coating device includes a vacuum chamber, a crucible, at least one spray head for preparing the coating material, and an injector tube, wherein the injector tube is designed to conduct the prepared coating material to the crucible and is connected to the crucible, wherein the at least one spray head can be moved between an operating position, in which the spray head supplies the injector tube with the prepared coating material, and a removal position, and wherein at least one removal chamberis provided which is designed to be accessible from outside the vacuum chamber and which can be sealed off from the vacuum chamber and in which the at least one spray headin its removal position is separated from the vacuum chamber in a gas-tight manner.

A mask assembly and method for manufacturing of the same are provided. A mask assembly includes: a mask frame including a first mask opening and a second mask opening which are located side by side in a first direction and defined by a support bar; a first split mask overlapping the first mask opening; and a second split mask overlapping the second mask opening, and the first split mask and the second split mask are spaced apart from each other in a region overlapping the support bar.

A mask assembly and method for manufacturing of the same are provided. A mask assembly includes: a mask frame including a first mask opening and a second mask opening which are located side by side in a first direction and defined by a support bar; a first split mask overlapping the first mask opening; and a second split mask overlapping the second mask opening, and the first split mask and the second split mask are spaced apart from each other in a region overlapping the support bar.

The invention concerns a crucible assembly for physical vapor deposition on a surface comprising: a base (22) to support and drive in rotation a crucible (18) around a rotational axis (A), the base comprising a base upper surface (34) having a first alignment relief (30), a crucible (18) comprising: at least one cavity (24) disposed at a peripheral area (38) of the crucible (18) with regard to the rotational axis (A), a crucible bottom surface (25) intended to contact the base upper surface (34) of the base (22), the crucible bottom surface (25) having a second alignment relief (32) which is complementary shaped with regard to the first alignment relief (30), the second (32) alignment relief being disposed at a central area (36) of the crucible (18) with regard to the rotation axis (A).

A holder (10) for holding a substrate (L) during vacuum coating comprises a base body (12) with a masking portion (14) provided with an opening (16) adapted to receive the substrate. The opening in the masking portion is shaped to correspond to or closely match the shape of the substrate to be held without substantial gaps therebetween. The masking portion is provided with a slot (22) that extends radially outward from an inner edge (18) of the opening. A narrow spring arm of a spring arrangement mounted to the holder is received in the slot and adapted to resiliently bear against an outer edge (E) of the substrate to urge the substrate toward a support area (24) at the inner edge of the opening on a side opposite said slot. Further, a loading/unloading device (60) for loading the substrate into such holder and for unloading it therefrom is proposed.

A holder (10) for holding a substrate (L) during vacuum coating comprises a base body (12) with a masking portion (14) provided with an opening (16) adapted to receive the substrate. The opening in the masking portion is shaped to correspond to or closely match the shape of the substrate to be held without substantial gaps therebetween. The masking portion is provided with a slot (22) that extends radially outward from an inner edge (18) of the opening. A narrow spring arm of a spring arrangement mounted to the holder is received in the slot and adapted to resiliently bear against an outer edge (E) of the substrate to urge the substrate toward a support area (24) at the inner edge of the opening on a side opposite said slot. Further, a loading/unloading device (60) for loading the substrate into such holder and for unloading it therefrom is proposed.

A display panel, a display device, and an evaporation device are provided. The display panel includes a plurality of pixel units arranged in an array. Each pixel unit includes four first sub-pixels, two second sub-pixels, and two third sub-pixels. Centers of the two second sub-pixels and centers of the two third sub-pixels form a virtual isosceles trapezoid. The two second sub-pixels are located on both ends of a diagonal of the virtual isosceles trapezoid, and the two third sub-pixels are located on both ends of another diagonal of the virtual isosceles trapezoid. Centers of the four first sub-pixels form a virtual quadrilateral. An interior of the virtual quadrilateral includes one second sub-pixel of the two second sub-pixels, and an interior of the virtual isosceles trapezoid includes one first sub-pixel of the four first sub-pixels.

A display panel, a display device, and an evaporation device are provided. The display panel includes a plurality of pixel units arranged in an array. Each pixel unit includes four first sub-pixels, two second sub-pixels, and two third sub-pixels. Centers of the two second sub-pixels and centers of the two third sub-pixels form a virtual isosceles trapezoid. The two second sub-pixels are located on both ends of a diagonal of the virtual isosceles trapezoid, and the two third sub-pixels are located on both ends of another diagonal of the virtual isosceles trapezoid. Centers of the four first sub-pixels form a virtual quadrilateral. An interior of the virtual quadrilateral includes one second sub-pixel of the two second sub-pixels, and an interior of the virtual isosceles trapezoid includes one first sub-pixel of the four first sub-pixels.

A mask and a mask assembly, which relates to the display field. The mask includes an opening region, a welding region and a blocking groove, the welding region is arranged around the opening region, and the blocking groove is arranged outside the opening area. When the mask is welded to a frame, wrinkles will appear on the mask. In embodiments of the present application, by providing a blocking groove on the mask, the spreading of the wrinkles may be blocked by the blocking groove, thereby preventing the wrinkles from extending into the opening region of the mask, avoiding the position shifting of the opening region, and improving the evaporation accuracy.

A mask and a mask assembly, which relates to the display field. The mask includes an opening region, a welding region and a blocking groove, the welding region is arranged around the opening region, and the blocking groove is arranged outside the opening area. When the mask is welded to a frame, wrinkles will appear on the mask. In embodiments of the present application, by providing a blocking groove on the mask, the spreading of the wrinkles may be blocked by the blocking groove, thereby preventing the wrinkles from extending into the opening region of the mask, avoiding the position shifting of the opening region, and improving the evaporation accuracy.