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Simulation prediction method and system for mask plate net stretching force and mask plate net stretching equipment

A simulation prediction and mask technology, applied in design optimization/simulation, instrumentation, electrical digital data processing, etc., can solve the problems of high cost, long development cycle, low accuracy, etc. Net efficiency and quality of netting, improving netting accuracy, and the effect of improving accuracy

Pending Publication Date: 2020-04-28
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of high test cost, long development cycle and low accuracy of existing mask tension force testing, the present invention provides a simulation prediction method and system for mask tension force, and mask tension equipment

Method used

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  • Simulation prediction method and system for mask plate net stretching force and mask plate net stretching equipment
  • Simulation prediction method and system for mask plate net stretching force and mask plate net stretching equipment
  • Simulation prediction method and system for mask plate net stretching force and mask plate net stretching equipment

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Experimental program
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Embodiment 1

[0051] This embodiment provides a method for simulating and predicting the tension force of a mask plate. The mask plate is used for evaporation of luminescent materials, such as Figure 1-Figure 4 shown, including:

[0052] Step S03: Calculate the simulated plate thickness of the mask plate 1 according to the formula; the formula is:

[0053]

[0054] Among them, LP is the length of the pixel hole 2 on the mask 1; WP is the width of the pixel hole 2; WF is the width of the mask 1 along the non-stretching direction; Thickness is the thickness of the simulated plate; The length of the effective pixel hole area 3 along the stretching direction in the plane where the mask plate 1 is located; α is the strain factor, and α changes with the design requirements of the average strain in the stretching direction of the effective pixel hole area 3 and the width of the mask plate 1 .

[0055] Step S04: Input the simulated plate thickness into the simulation algorithm and assign it as ...

Embodiment 2

[0082] This embodiment provides a mask sheet tensioning device, including the simulation prediction system for mask sheet tension force in Embodiment 1.

[0083] The mask stretching equipment, by adopting the simulation prediction system of the mask stretching force in Embodiment 1, improves the stretching accuracy of the mask, saves the design and testing costs of the mask, and shortens the length of the mask. The development cycle of the mask board, thereby improving the netting efficiency and the quality of the netting of the mask board netting equipment.

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Abstract

The invention provides a simulation prediction method and system for a mask plate net stretching force, and mask plate net-stretching equipment. The simulation prediction method for the mask plate netstretching force comprises the steps that the simulation plate thickness of a mask plate is calculated according to a formula, wherein LP is the length of a pixel hole in the mask plate, WP is the width of the pixel hole, WF is the width of the mask plate in the non-stretching direction, Thickness is the thickness of the simulation plate, LAA is the length of the effective pixel hole area on themask plate in the stretching direction in the plane where the mask plate is located, and alpha is a strain factor and changes along with the average strain design requirement of the effective pixel hole area in the stretching direction and the width change of the mask plate; inputting the analog plate thickness into a simulation algorithm and endowing the analog plate thickness with a thickness value of a mask plate in the simulation algorithm; and simulating and predicting a mask plate net stretching force by utilizing the simulation algorithm based on the simulation plate thickness. According to the method, the calculation accuracy of the net tensioning force can be improved, the calculation amount of a simulation algorithm can be reduced, the mask plate design and test cost is saved, and the mask plate development period is shortened.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a method and system for simulating and predicting the tension force of a mask plate, and a mask plate tensioning device. Background technique [0002] In the process of preparing an OLED (organic electroluminescent) display panel, each layer of organic light-emitting material needs to be vapor-deposited on the substrate, and a corresponding mask is used in the vapor-deposition process. Metal mask (Fine Metal Mask, FMM) is a mask used in electroluminescence (EL) material evaporation process, mainly used for evaporation of organic light-emitting materials to form red R, green G, blue B of the display panel. pixels. [0003] The metal mask is a thin metal plate with millions of micron-scale openings formed on the surface, with a thickness of only 5 μm to 40 μm. The extremely thin and porous characteristics of the metal mask make it resistant to external temperature and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F119/14
Inventor 毕娜刘月
Owner BOE TECH GRP CO LTD