Mask assembly and method for manufacturing the same and display device
AssigneesBoe Technology Group Co., Ltd., Ordos Yuansheng Optoelectronics Co., Ltd.
InventorsDongwei Li, Baojun Li, Chun Chieh Huang
Life of this patent
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Abstract
The present disclosure provides a mask assembly and a method for manufacturing the same, and a display device. The mask assembly includes a frame, a first mask and a second mask, and the first mask and the second mask are superposed on the frame; the first mask includes an opening region, the second mask includes an evaporation region in which a first evaporation hole is provided for allowing an evaporation material to pass therethrough and a buffer region surrounding the evaporation region and configured to block off the evaporation material, and an orthographic projection of the boundary of the opening region onto the second mask is located within the buffer region.
Claims18
A mask assembly, comprising a frame, a first mask and a second mask, the first mask and the second mask being superposed on the frame;
- wherein the first mask comprises an opening region, the second mask comprises an evaporation region in which a first evaporation hole is provided for allowing an evaporation material to pass therethrough and a buffer region surrounding the evaporation region and configured to block off the evaporation material, and an orthographic projection of a boundary of the opening region onto the second mask is located within the buffer region,
- wherein a plurality of first recesses are provided in the buffer region and spaced from each other, and
- wherein an area of an opening face of the first evaporation hole is equal to an area of an opening face of each of the first recesses.
A method for manufacturing a mask assembly, comprising steps of:
- providing a frame;
- forming a first mask comprising an opening region;
- forming a second mask, the second mask comprising an evaporation region in which a first evaporation hole is provided for allowing an evaporation material to pass therethrough and a buffer region surrounding the evaporation region and configured to block off the evaporation material;
- and
- superposing the first mask and the second mask on the frame, such that an orthographic projection of a boundary of the opening region onto the second mask is located within the buffer region,
- wherein a plurality of first recesses are provided in the buffer region and spaced from each other, and
- wherein an area of an opening face of the first evaporation hole is equal to an area of an opening face of each of the first recesses.
Dependencies are inferred from the claim text.