Boe Technology Group Co., Ltd.

Chengdu Boe Optoelectronics Technology Co., Ltd.

Beijing Boe Technology Group Co., Ltd.

Na Bi

Shanshan Bai

Yue Liu

Longhui Xue

Kui Wang

Disclosed are a mask and a manufacturing method for the mask, aiming to solve the problem in the prior art of the easy occurrence of color mixing due to the inaccurate position of evaporation when a pattern of a light-emitting substrate is formed by means of a mask. The mask for covering a mother board, which is formed by a multi-division exposure procedure and thus has a substrate invalid region that cannot be exposed due to the multi-division exposure procedure, comprises: a metal frame; a support mask located on one side of the metal frame; at least one fine metal mask strip, which is located on the side of the support mask that faces away from the metal frame, and is provided with multiple openings for the evaporation of a light-emitting film for sub-pixels in the mother board; and a support plate located between the metal frame and the fine metal mask for covering the substrate invalid region, with the thickness of the support plate being greater than that of the support mask.

Mask, and manufacturing method for mask

A mask, a manufacturing method thereof and a mask assembly are provided. The mask includes a display region and welding regions located on opposite sides of the display region in a first direction, wherein the welding region at least includes a thickened portion, and a set welding region is disposed on the thickened portion; a thickness of the set welding region is greater than that of the display region; and in a horizontal direction of the display region, the thickened portion protrudes from a surface of at least one side of the display region.

Mask, manufacturing method thereof and mask assembly

Provided is a mask assembly, including: an annular mask frame; a supporting structure, located on a side of the mask frame, fixedly connected to the mask frame, and having an opening; and a mask structure, located on a side of the mask frame and fixedly connected to the mask frame, and including a strip-shaped mask body and a sheet-shaped mask piece corresponding to the opening, wherein the mask piece is fixedly connected to a side edge of the mask body and has a plurality of first through holes, wherein an orthographic projection of the mask body on a bearing surface of the mask frame does not overlap with an orthographic projection of the opening on the bearing surface, and an orthographic projection of the mask piece on the bearing surface overlaps with the orthographic projection of the opening on the bearing surface.

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Beijing, China

Na Bi