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Mask and method of making the same

A mask, mask technology, applied in metal material coating process, vacuum evaporation plating, coating and other directions, can solve the problem of mask layer prone to displacement or wrinkles, etc.

Active Publication Date: 2021-12-14
HEFEI VISIONOX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a mask and its preparation method for the problem that the mask layer is prone to shift or wrinkle during the stretching process.

Method used

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  • Mask and method of making the same
  • Mask and method of making the same
  • Mask and method of making the same

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Embodiment Construction

[0064] In order to make the purpose, technical solution and advantages of the present application clearer, the present 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 the present application, and are not intended to limit the present application.

[0065] Currently, active-matrix organic light emitting diode (Active-matrix organic light emitting diode) display is the mainstream direction of the current market. The market demand is great, but the challenges are also great, and there are still many problems to be solved urgently. For example, the pixel position accuracy (Pixel position accuracy: PPA) is low, resulting in abnormal evaporation, resulting in pixel abnormalities or defects in the display screen.

[0066] The pixel position accuracy is low, which is generally caused by deviations in the process of evaporat...

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Abstract

The application relates to a mask plate and a preparation method thereof. The mask plate includes a frame, a mask body and an adjusting device. The mask body is arranged on the frame. The adjusting device is arranged between the frame and the mask body, and is used for adjusting the position change between the frame and the mask body. After the mask plate completes the netting of the mask body, once the mask body is found to be shifted or wrinkled, the position between the mask body and the frame can be adjusted by the adjustment device, so that the mask opening can be aligned with the pixel Unit alignment setting to avoid re-stretching of the mask. The adjustment device adjusts the position between the mask body and the frame to change, so that the mask opening can be aligned with the pixel unit, and the display yield of the display screen can also be improved.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a mask and a preparation method thereof. Background technique [0002] Display screens have been widely used in various portable electronic devices, such as mobile communication devices, tablet computers, monitors, e-books, navigation devices or vehicle-mounted devices, and many other fields. Among them, organic light emitting diodes (organic light emitting diode, referred to as OLED) are gradually applied to display screens due to their excellent properties such as low power consumption, high color saturation, wide viewing angle, thin thickness, and flexible design. [0003] At present, in the manufacturing process of the display screen, a fine metal mask (FMM for short) is often used. When forming the fine mask plate, it is necessary to stretch the net, specifically to position each mask and then fix it on the frame. After all the stretching steps are completed, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/04C23C14/24
CPCC23C14/042C23C14/24
Inventor 徐国华王建强吴蕴泽
Owner HEFEI VISIONOX TECH CO LTD