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Optical material for full lamination process and preparation method and application of optical material

An optical material, full lamination technology, applied in the field of full lamination, can solve the problems of complex process, inability to use, high cost of optical glue, and achieve the effect of simple processing process, high yield and good display performance

Inactive Publication Date: 2017-07-28
TRULY OPTO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, considering the high reliability of these products, the display module generally has an upper metal frame structure, so that the Panel and BL can be firmly fixed together with the upper and lower metal frames, but the module with the upper metal frame is connected with the CTP or Cover Lens. Full lamination, complex process, and high cost of optical glue
Existing laminating equipment cannot be used, and new laminating equipment needs to be developed

Method used

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  • Optical material for full lamination process and preparation method and application of optical material

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0044] A method for preparing an optical material used in a full bonding process includes the following steps:

[0045] S1: Provide an optical layer, and apply liquid optical glue on both sides of the optical layer to form a first optical glue film layer and a second optical glue film layer;

[0046] S2: sticking protective films on the outer surfaces of the first optical adhesive film layer and the second optical adhesive film layer respectively;

[0047] S3: Cut into multiple optical materials of predetermined size specifications.

[0048] Before step S1, it also includes preprocessing the optical layer. The preprocessing includes plasma cleaning the optical layer. The method of plasma cleaning belongs to the prior art and will not be repeated here.

[0049] In step S1, the liquid optical glue is coated, and the liquid optical glue is cured after the liquid optical glue spreads evenly. The curing treatment includes adopting physical and / or chemical methods to cause the liquid optica...

Embodiment 1

[0066] Refer to figure 1 , An optical material used in a full bonding process, comprising an optical layer having a first surface and a second surface opposite to the first surface, and the first surface of the optical layer is provided with a first optical Adhesive film layer, the second surface of the optical layer is provided with a second optical adhesive film layer, and the outer surfaces of the first optical adhesive film layer and the second optical adhesive film layer are respectively bonded with protective films.

[0067] The thickness of the optical layer is 0.1mm, the optical transmittance>90%, and the refractive index: 1.40; the optical layer is made of polycarbonate (PC), polystyrene (PS), polyethylene terephthalate Ester (PET), polymethyl methacrylate (PMMA), polypropylene (PP), polyethylene (PE), cellulose triacetate (TAC), polyvinyl chloride (PVC), polyacrylate (PA), poly Made of one or more of vinyl alcohol (PVA).

[0068] The thickness of the protective film is ...

Embodiment 2

[0071] Refer to figure 1 , An optical material used in a full bonding process, comprising an optical layer having a first surface and a second surface opposite to the first surface, and the first surface of the optical layer is provided with a first optical Adhesive film layer, the second surface of the optical layer is provided with a second optical adhesive film layer, and the outer surfaces of the first optical adhesive film layer and the second optical adhesive film layer are respectively bonded with protective films.

[0072] The thickness of the optical layer is 5.0 mm, the optical transmittance is >90%, and the refractive index is 1.55. The optical layer is made of polycarbonate (PC), polystyrene (PS), polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), polypropylene (PP), polyethylene (PE), cellulose triacetate (TAC), polyvinyl chloride (PVC), polyacrylate (PA), polyvinyl alcohol (PVA) one or more of them.

[0073] The thickness of the protective film is 0.0...

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Abstract

The invention provides an optical material used in a full bonding process, comprising an optical layer, the optical layer has a first surface and a second surface opposite to the first surface, and the first surface of the optical layer is provided with a second surface. An optical adhesive film layer, a second optical adhesive film layer is provided on the second surface of the optical layer, and protective films are pasted on the outer surfaces of the first optical adhesive film layer and the second optical adhesive film layer. The optical material of the present invention has high refractive index and high light transmittance, can guarantee the brightness of the display when used in the full bonding process, has better display performance, and can also play the role of dustproof, antifog, bubble and drop resistance. The fully laminated products processed by this method have the advantages of simple processing process, high alignment accuracy, less air bubbles in product lamination, and high yield rate. The present invention can realize the full lamination process of LCM with metal frame on the existing full-automatic solid-state laminating machine, without the need of modification or development of new equipment, and can reduce the cost.

Description

Technical field [0001] The invention relates to the technical field of full bonding, in particular to an optical material used in a full bonding process, and a preparation method and application thereof. Background technique [0002] As customers’ display and touch requirements for smart devices are getting higher, many well-known manufacturers try to use touch display module full bonding technology, namely TP (touch screen) or Cover Lens (protective cover) and LCM use OCA optical glue fit. Compared with the traditional bonding method, the full bonding technology is thinner and has better light transmission. In addition to providing a better display effect, the touch screen is also closely integrated with the LCM to increase the strength, reducing the LCM noise on the touch The interference caused by the control signal does not need to consider dust and moisture, so the touch screen frame does not need to consider the bonding width, which can make the touch screen frame narrower...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B7/12B32B37/12
CPCB32B27/06B32B7/12B32B37/12B32B2250/03B32B2250/40B32B2255/10B32B2255/26B32B2307/412B32B2307/418
Inventor 周洪嵩孟强邱信红
Owner TRULY OPTO ELECTRONICS
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