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Inspection and classification device and method for metal mask strips

A technology of metal mask and sorting equipment, which is applied in sorting and other directions, and can solve problems such as low netting yield, offset of opening position, deformation of metal mask plate, etc.

Pending Publication Date: 2021-05-18
FUJIAN HUAJIACAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to a large difference between the actual tension value of each metal mask strip and the design value during the stretching process. If the actual tension of each metal mask strip is different, the shrinkage force of multiple metal mask strips If the sum cannot be offset with the design value of the above mechanism, it will cause greater deformation of the metal mask, resulting in a shift in the position of the opening, which is one of the reasons for the low yield of OLED stretching

Method used

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  • Inspection and classification device and method for metal mask strips
  • Inspection and classification device and method for metal mask strips
  • Inspection and classification device and method for metal mask strips

Examples

Experimental program
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Embodiment 1

[0071] Please refer to figure 2 , Figure 5 to Figure 7 , Embodiment 1 of the present invention is:

[0072] An inspection and sorting device for metal mask strips, such as figure 2 As shown, it includes a backlight 1 , a position measuring device 2 , a first track 3 and a clamping device 4 . Wherein, the position measuring device 2 is erected above the backlight 1 , and the measuring direction of the position measuring device 2 is aligned with the light emitting surface of the backlight 1 . Both sides of the backlight 1 are provided with a clamping device 4 respectively, the clamping device 4 is erected on the first track 3 and equipped with a tension sensor, the track direction of the first track 3 is the same as the placement direction of the two clamping devices 4 . The two clamping devices 4 are respectively used to clamp the two ends of the metal mask strip 5 to be tested, and the tension sensor is used to measure the tension of the metal mask strip 5 to be tested....

Embodiment 2

[0074] Please refer to Figure 1 to Figure 4 , the second embodiment of the present invention is:

[0075] An inspection and sorting device for metal mask strips, such as figure 1 and figure 2 As shown, it also includes a gantry frame 6, a second rail 7, an adsorption device 8, a placement table 9, a first lifting device 10 and a second lifting device 11. Wherein, the placement table 9 and the backlight source 1 are located between the two second rails 7, the gantry frame 6 is erected on the two second rails 7, and the track direction of the second rail 7 is aligned with the arrangement direction of the placement table 9 toward the backlight source 1 same. The first lifting device 10 and the second lifting device 11 are erected respectively on the beam frame of the gantry 6, the position measuring device 2 is fixedly connected with the first lifting device 10, the adsorption device 8 is fixedly connected with the second lifting device 11, and the adsorption device 8 It is...

Embodiment 3

[0079] Please refer to Figure 8 , Embodiment three of the present invention is:

[0080] A method for checking and classifying metal mask strips, applied to the inspection and sorting equipment for a metal mask strip described in embodiment one or two, comprising steps:

[0081] S1, fixing the metal mask strip 5 to be tested and stretching the net, recording the current tension of the metal mask strip 5 to be tested;

[0082] S2, measuring the current opening position of the target opening 15 on the metal mask strip 5 to be tested at this time;

[0083] S3 , classifying the metal mask strips 5 to be tested according to the current tension corresponding to the metal mask strips 5 to be tested and the current opening positions.

[0084] In this embodiment, a method for checking and classifying metal mask strips is provided, by obtaining the current tension and the current opening position of the metal mask strip 5 to be tested in the current stretching state, and classifying ...

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Abstract

The invention discloses an inspection and classification device and method for metal mask strips. Then inspection and classification device for the metal mask strips comprises a backlight source, a position measuring device, a first track and a clamping device; clamping equipment, the position measuring device and other equipment are used in cooperation, the current tensions and the current trepanning positions of to-be-measured metal mask strips in the current net stretching state are obtained, and classification is conducted accordingly; and it is guaranteed that the metal mask strips with the consistent trepanning positions are uniformly used in one metal mask plate, so that the offset sizes and directions of the overall trepanning of all the metal mask strips on a metal mask frame are the same. During actual net stretching, a worker can preset reasonable preset applied force according to the current tension of the metal mask strips required to be used in classification and the data of the current trepanning positions, so that the contraction force of the metal mask strips in the net stretching welding process is offset as much as possible, the offset of the trepanning positions on the metal mask strips is reduced, and the net stretching yield is improved.

Description

technical field [0001] The invention relates to the technical field of OLED manufacturing, in particular to an inspection and classification device and method for metal mask strips. Background technique [0002] The existing OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) display panel uses an evaporation source to heat and evaporate the organic material in a vacuum environment, so that the organic material passes through the opening position on the metal mask to define the position of the film on the glass. . Among them, the film-forming position needs to be the designated light-emitting position on the substrate, so that the current of the substrate can be effectively transmitted to the OLED device to emit light, so the accuracy of the opening position of the metal mask is extremely important. The accuracy of the opening position on the metal mask mainly depends on the assembly accuracy of the metal mask and the opening accuracy of the metal mask strips....

Claims

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Application Information

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IPC IPC(8): B07C5/02B07C5/34B07C5/36
CPCB07C5/02B07C5/34B07C5/362
Inventor 沈志昇骆丽兵
Owner FUJIAN HUAJIACAI CO LTD
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