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Deposition mask for OLED pixel deposition

A mask and metal plate technology, applied in the field of deposition masks, can solve the problems of uniformity reduction and uneven formation of pixel patterns, etc., and achieve the effects of improving thickness uniformity, deposition rate uniformity, and deposition efficiency

Pending Publication Date: 2022-06-24
LG INNOTEK CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] At this time, when the size of the through hole of the deposition mask forming the pixel pattern is not uniform, the uniformity of the organic material formed on the target substrate to be deposited may be reduced together, and thus the pixel pattern of the target substrate to be deposited may also be reduced. may form unevenly

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  • Deposition mask for OLED pixel deposition
  • Deposition mask for OLED pixel deposition
  • Deposition mask for OLED pixel deposition

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Embodiment Construction

[0036] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. However, the spirit and scope of the present disclosure are not limited to some of the described embodiments, and may be embodied in various other forms, and one or more of the embodiments may be selectively combined and substituted within the spirit and scope of the present disclosure. multiple elements. Also, unless explicitly defined and described otherwise, terms (including technical and scientific terms) used in the embodiments of the present disclosure may be construed as having the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, and Terms such as those defined in common dictionaries can be interpreted to have meanings consistent with their meanings in the context of the related art.

[0037] Also, the terms used in the embodiments of the present disclosure are used to describe ...

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Abstract

A deposition mask according to an embodiment includes a metal plate having a first surface and a second surface, the metal plate including iron and nickel, having a thickness of 15 [mu] m to 30 [mu] m, the metal plate including a first surface layer having a depth of 20% or less of the thickness of the metal plate and a second surface layer having a depth of 20% or less of the thickness of the metal plate, when the diffraction intensities with respect to the (111), (200) and (220) crystal planes of the first surface layer are defined as I (111), I (200) and I (220), respectively, the ratios of the diffraction intensities of I (220), I (200) and I (220) are defined by Formula 1, Formula 2 and Formula 3, respectively, [Formula 1] A = I (220) / (I (200) + I (220) + I (111)) [Formula 2] B = I (200) / (I (200) + I (220) + I (111)) [Formula 3] C = I (111) / (I (200) + I (220) + I (111)) A is greater than the values of B and C, the value of B is greater than the value of C, and when the ratio of B to A (B / A

Description

[0001] Cross-reference to related applications [0002] This application claims priority to Korean Patent Application No. 10-2020-0180951 (filed on December 22, 2020), the entire contents of which are incorporated herein by reference. technical field [0003] Embodiments relate to a deposition mask for organic light emitting diode (OLED) pixel deposition. Background technique [0004] Since display devices with high resolution and low power consumption are required, various display devices such as liquid crystal display devices and electroluminescent display devices have been developed. [0005] Compared with liquid crystal display devices, electroluminescence display devices have attracted attention as next-generation display devices due to their excellent characteristics such as low light emission, low power consumption, and high resolution. [0006] Among the electroluminescent display devices, there are organic light-emitting display devices and inorganic light-emitting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/04C23C14/24C23C14/54H01L51/56C21D6/00C21D8/02
CPCC23C14/042C23C14/24C23C14/542C21D6/001C21D8/0205C21D8/0226C21D8/0236C21D8/0273C21D2201/05H10K71/166H10K71/00C23C14/12
Inventor 金南昊
Owner LG INNOTEK CO LTD
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