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Mask plate

A technology of masks and masks, which is applied in the field of masks, can solve problems such as color mixing, difficulty in opening nets, and poor precision, and achieve the effects of reducing welding difficulty, overcoming poor netting precision, and overcoming mask wrinkles

Pending Publication Date: 2020-01-31
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present application expects to provide a mask plate to solve the problem of difficulty in opening the net and poor precision caused by the increase in mask width in the prior art, resulting in the problem of color mixing during evaporation

Method used

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Embodiment Construction

[0028] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

[0029] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0030] In the production process of OLED, evaporation is an important process step. Such as figure 1 As shown, the principle of evaporation is to place a mask plate 3 on the mask plate stage 2, and set a substrate 4 (Substrate) on the mask plate 3. The substrate 4 is, for example but not limited ...

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Abstract

The invention relates to the technical field of display and discloses a mask plate. The mask plate comprises a frame. The frame is provided with an open area which is a ladder hole. A supporting partand a mask are fixedly connected in the end which is large in opening of the ladder hole. The supporting part and the mask are fixedly connected to the frame, separately. The mask is supported on thesupporting part which is used for eliminating droop of the mask, so that the problem of overcoming droop by way of increasing tension is solved in a net towing process by the mask. Therefore, the netcan be towed with relatively small tension. Along with reduction of tension, the problem of wrinkles of the mask caused by large tension is overcome. The welding difficulty of the mask welded to the frame is also reduced correspondingly, so that the net towing precision is improved and the problem of mixed color of evaporation as a result of poor net towing precision is overcome.

Description

technical field [0001] The present application generally relates to the field of display technology, and in particular to a mask. Background technique [0002] OLED (Organic Light-Emitting Diode; Organic Light-Emitting Diode) is a new generation of display products after liquid crystal displays. Due to its better color saturation, fast response speed, foldability, thinness and other properties, it is gradually becoming a Show the mainstream and leader in the field. [0003] With the increase of OLED market share, the demand for large-size products such as tablets, vehicles, and folding products is increasing. The screen sizes of tablets, vehicles, and folding products will gradually increase, and mobile phone products will no longer be limited to 5-inch, 6 inches etc. Correspondingly, the width of the mask used in the manufacturing process of these products must also be widened, so that more pixel openings can be set on the mask plate. [0004] However, the wider the widt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/04C23C14/24
CPCC23C14/042C23C14/24
Inventor 叶建波徐鹏马国强邓江涛梅菊丁渭渭
Owner BOE TECH GRP CO LTD
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