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Cold-pressing system and process of cold-pressed microlens grating

A micro-lens grating, cold-pressed technology, applied in the direction of diffraction grating, optics, optical components, etc., can solve the problems of not being able to provide high-quality materials, data deformation and errors, and moiré fringes for naked-eye 3D displays, and achieve convenient Self-produced production and automatic control, eliminating thermal expansion and contraction, and the effect of small material stretchability

Active Publication Date: 2016-08-10
HENAN SANYANG PHOTONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The grating material produced by this process has a large deformation and error between the grating data and the data of the mold. The material itself will also have inaccurate data, uneven data, uneven focus, weak stereoscopic effect, blurred images, and blurred images. Earl stripes and other issues
Since the dot pitch of the display is fixed, the material produced by the hot pressing method cannot provide high-quality materials for the naked eye 3D display

Method used

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  • Cold-pressing system and process of cold-pressed microlens grating
  • Cold-pressing system and process of cold-pressed microlens grating
  • Cold-pressing system and process of cold-pressed microlens grating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: as figure 1 As shown, a cold-pressing system of a cold-pressed microlens grating includes a PET film substrate roll 1, a glue spreader 2, a grating mold roll 3, a transmission roll 4, and a finished product receiving roll 5 in sequence. A pinch roller 7 and a curing light box device 6 are arranged below the grating mold roller. The grating mold roll adopts ø100—ø600, L=1300—2000mm steel roll.

[0018] Such as Figure 4 , 5 As shown, the curing light box device 6 includes a box body 6-7 with a specification of 1800*700*500mm made of a cold-rolled steel plate of 0.2-1.2 mm, and the inside of the box body 6-7 is fully covered with reflective film; the inside of the box body 6-7 A 1500-2200W high-pressure mercury lamp 6-1 is provided, and is lit by the LC series resonance power supply method; an arc-shaped reflector 6-2 is installed at 100-200mm on one side of the high-pressure mercury lamp 6-1; Install thermometers or automatic temperature alarm devices 6...

Embodiment 2

[0019] Embodiment 2: A cold-pressing process of a cold-pressed microlens grating, the cold-pressing system of the cold-pressed microlens grating is the same as that in Embodiment 1. Adopt the normal temperature cold press production method, under the condition that the cleanliness of the dark room is required to be ≦100, the PET film bypasses the PET film substrate roller, glue coating machine, grating mold roller, transmission roller and finished product receiving roller in turn; glue coating The ultra-transparent UV photosensitive adhesive with a light transmittance of more than 99% is selected in the machine, and the PET film is pressed between the grating mold roller and the pressure roller, and the pressure is adjusted to 0.5-1.50KG; the coated PET film is cured after passing through When the light box is installed, it is directly irradiated with a high-pressure mercury lamp to cure instantly, and the temperature in the curing light box device is controlled at 25°C-30°C; t...

Embodiment 3

[0021] Example 3: A cold-pressing system and process of a cold-pressed microlens grating, using a PET substrate (coil) of 1800*100000mm, requiring cleanliness ≦100 in a dark room, room temperature; 21°C±°C, relative humidity; (68—78)%, ventilation volume; (0.2—0.4)m3∕S, producing naked eye 3D47 inch grating material.

[0022] Select high-quality PET base material (roll material) 1800*100000mm upper roller, positioning, adjust balance, choose such as figure 2 , 3 The grating mold roll 3 shown has an axial groove 3-1 on the surface of the grating mold roll. This process requires the operator to wear anti-static clothing and gloves to prevent scratches and indentations on the PET substrate. After passing the inspection, adopt the method of artificial lamination, pass through the glue applicator, the grating mold roller and the pressure roller, adjust the pressure to 1.0KG, pass through the transmission roller, pass through the curing light box device, and reach the finished pro...

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Abstract

A cold-pressing system for cold-pressing microlens gratings, which sequentially includes a PET film substrate roller, a glue spreader, a grating mold roller, a transmission roller, and a finished product receiving roller, and a pressing roller and a curing light box device are arranged below the grating mold roller. Because the present invention adopts the cold-pressing system technology of the cold-pressed microlens grating, it is convenient for self-production and automatic control, reduces the manual operation procedure, ensures the consistency of the product, and eliminates the factors of thermal expansion and contraction, so the process is simple, The data is accurate, the material is less elastic, the three-dimensional effect is strong, and the cost is low.

Description

technical field [0001] The invention belongs to the technical field of grating materials used in naked-eye 3D displays, and in particular relates to a cold-pressing system and process of a cold-pressed microlens grating. Background technique [0002] At present, the grating materials used in the market are all pellets heated, melted, pressed and drawn into a film shape, then heat-pressed by the grating mold roll, and finally cooled and shaped into a finished product. The grating material produced by this process has a large deformation and error between the grating data and the data of the mold. The material itself will also have inaccurate data, uneven data, uneven focus, weak stereoscopic effect, blurred images, and blurred images. Earl stripes and other issues. Since the dot pitch of the display is fixed, the material produced by the hot pressing method cannot provide high-quality materials for the naked eye 3D display. Contents of the invention [0003] The technical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C69/00B29C43/46G02B5/18G02B27/22B29L11/00
Inventor 郑晓路杨合生顾银海李素兰李江华志伟卢瑞光李国敏杨万坤
Owner HENAN SANYANG PHOTONICS
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