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Shadow mask and method of making the same

A shadow mask and mask technology, which is applied in semiconductor/solid-state device manufacturing, electrical components, electric solid-state devices, etc., can solve problems such as damage, deformation, and poor repeatability, and achieve the effect of ensuring quality

Active Publication Date: 2015-08-26
KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Conventionally used shadow mask preparation methods include: laser sintering, etching, and electroforming, etc., but due to equipment precision, process control, etc., the prepared shadow mask often has over-cut or miss-cut, that is, adjacent shadow masks If the gap between the two belts is too large or too small, the product accuracy is not ideal, and the repeatability between different batches is also poor
[0005] Furthermore, during the use of the shadow mask, due to the influence of the magnetic field, adjacent strips (stripes) may attract or repel each other, resulting in deformation and affecting the use. During the cleaning process, because the strips are relatively thin and the strength is insufficient, prone to damage

Method used

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  • Shadow mask and method of making the same
  • Shadow mask and method of making the same
  • Shadow mask and method of making the same

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Embodiment Construction

[0026] See Figure 1-2 A kind of existing shadow mask shown, is formed with several strips (stripe) 50 that are arranged at intervals and the gap 60 that is formed between adjacent two strips on it, figure 2 What is shown is a cross-sectional view of two adjacent strips 50 and a gap 60 between the two strips 50 in the shadow mask, and the cross-section of the strips 50 is roughly T-shaped.

[0027] See image 3 as shown, image 3 Each step of the method for preparing shadow mask in a preferred embodiment of the present invention has been described in detail:

[0028] A hollow frame (frame) 1 is provided. The hollow frame is square and has an installation area on it. There is a certain distance between the installation area and the edge of the hollow frame.

[0029] Make an open mask (open mask) 2, and bind it on the installation area of ​​described hollow frame 1, the material of described open mask 2 can be any suitable material, and with high structural strength or low e...

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Abstract

The invention relates to a shadow mask and a preparation method thereof. The preparation method of the shadow mask includes the following steps: providing a hollow frame (1) which is provided with an installation area; binding an opening cover (2) on the installation area of the hollow frame, wherein the opening cover (2) is provided with a plurality of openings (21); and providing a plurality of metal bars (30), and fixing the metal bars on the corresponding openings (21) of the opening cover (2). Then, precision of gap sizes between the metal bars can be easily controlled, and quality of the shadow mask can be guaranteed.

Description

technical field [0001] The invention relates to a shadow mask (Shadow Mask) used in the OLED manufacturing process and a preparation method of the shadow mask. Background technique [0002] Compared with traditional liquid crystal display devices, organic electroluminescent devices (Organic Light Emitting Diode, hereinafter referred to as OLED) have attracted widespread attention due to their thin body, simple preparation process, fully cured luminescent materials, and flexible devices. More and more OLEDs are being used in display and lighting fields. [0003] At present, in the process of making organic electroluminescent devices, the shadow mask (Shadow Mask) is an indispensable auxiliary material. For small-sized organic electroluminescent device screens, shadow masks in the form of bars are commonly used. , how the production quality of the shadow mask directly affects the evaporation quality and screen performance of the organic electroluminescent device. [0004] Co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/56
Inventor 张伸福邱勇陈红黄秀颀敖伟
Owner KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT