A grating precise alignment bonding method and device thereof

Abstract

The present invention relates to a grating accurate alignment and attaching method and device, belonging to the technical fields of optical elements, systems or instruments configured to generate stereoscopic or other three-dimensional effects. The device comprises a track, a transparent vacuum adsorption platform, a benchmark screen, a test chart observation display screen, a test chart intake camera, a triaxial alignment platform, a screen to be attached and a Mark identification CCD. The benchmark screen is provided with a test chart, the transparent vacuum adsorption platform is installedon the track, the transparent vacuum adsorption platform is provided with a rotating shaft, a film to be attached is attached above the transparent vacuum adsorption platform, and the test chart observation display screen and the test chart intake camera cooperatively used with the test chart observation display screen are arranged above the film to be attached; and the transparent vacuum adsorption platform and the triaxial alignment platform form double-station attaching. The grating accurate alignment and attaching method and device are applied to grating attaching, especially to 3D gratingattaching, are high in precision and convenient to operate, and can achieve full attaching.

Description

technical field [0001] The present application relates to a grating precise alignment lamination method and device thereof, and belongs to the technical field of optical elements, systems or instruments for producing three-dimensional or other three-dimensional effects. Background technique [0002] 3D gratings include cylindrical lens gratings and slit gratings, which have very high precision requirements when laminating, especially the angle, which is generally required to be less than ±0.01 degrees. OCA or LOCA is commonly used in the market for alignment lamination of 3D gratings. [0003] When using the OCA process, the bonding efficiency is extremely high, but it cannot be precisely aligned because: [0004] OCA commonly used replica laminating machines, using the reference point of the CCD capture screen and the grating boundary for alignment. Although the repetitive positioning accuracy of the replica laminating machine can reach ±0.1mm, the cutting accuracy of the...

AI Technical Summary

Problems solved by technology

[0006] (1) The degree of automation of the equipment is low, and a cold laminator is generally used for lamination;

[0007] (2) Water glue bonding in the atmosphere will cause significant glue overflow, which requires dam treatment or glue cleaning;

[0008] (3) The precise alignment of the LOCA process requires the alignment of the LCD with 3D grating special test software or graphics, and the driving process will increase the proportion of bad screen circuits and electrostatic damage

And the work of LCD connection circuit can only be done manually and cannot be automated

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