Precision metal mask and mask assembly provided with same

A metal mask, precision technology, applied in metal material coating process, electrical components, electrical solid devices, etc., can solve the problems affecting the quality of evaporation, welding is not strong, etc., to reduce the risk of wrinkles and reduce solder joints , the effect of improving quality

Active Publication Date: 2020-07-28
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the related art, in the process of welding the precision metal mask board to the metal frame, the situation of false welding often occurs and the welding is not strong, which affects the quality of evaporation.

Method used

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  • Precision metal mask and mask assembly provided with same
  • Precision metal mask and mask assembly provided with same
  • Precision metal mask and mask assembly provided with same

Examples

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Embodiment Construction

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0035] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself...

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PUM

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Abstract

The invention discloses a precision metal mask and a mask assembly provided with same. The precision metal mask comprises an effective display area and two welding areas, wherein the two welding areasare separately positioned at the two sides in the length direction of the effective display area; at least one welding area is a set welding area; and a first through hole is formed in the set welding area. According to the precision metal mask provided by the invention, the first through hole is formed in the set welding area, so that stress distribution, in an average trap net stretching process, of the precision metal mask is facilitated, and folding risk of the welding area is reduced, and therefore, welding precision is guaranteed, an insufficient soldering condition is reduced, and evaporating quality is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a precision metal mask and a mask assembly having the same. Background technique [0002] Generally, in the manufacturing process of the display panel, the precision metal mask plays an important role, especially in the manufacturing process of the OLED display panel, it directly determines whether the organic light-emitting material can be accurately vapor-deposited on the corresponding OLED substrate. . [0003] However, in the related art, in the process of welding the precision metal mask plate to the metal frame, the situation of false welding often occurs and the welding is not firm, which affects the quality of evaporation. Contents of the invention [0004] The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, the present invention proposes a precision metal mask. By setting the first through hole in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/04C23C14/24C23C14/12H01L21/033H01L51/56
CPCC23C14/042C23C14/24C23C14/12H01L21/0337H10K71/16H10K71/00
Inventor 毕娜
Owner BOE TECH GRP CO LTD
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