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Ultrathin glass-organic film composite cover plate based on roll-to-roll process and manufacturing method thereof

A technology of ultra-thin glass and manufacturing methods, applied in chemical instruments and methods, glass/slag layered products, lamination auxiliary operations, etc.

Active Publication Date: 2021-01-22
CHENGDU TOMI SHUANG DU OPTOELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the present invention proposes a method suitable for mass production scale and capable of reducing the height difference between the surface to be coated and the substrate due to UTG and its Production Method of Roll-to-Roll UTG / Organic Film Composite Cover Sheet Caused by Difference in Surface Energy

Method used

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  • Ultrathin glass-organic film composite cover plate based on roll-to-roll process and manufacturing method thereof
  • Ultrathin glass-organic film composite cover plate based on roll-to-roll process and manufacturing method thereof
  • Ultrathin glass-organic film composite cover plate based on roll-to-roll process and manufacturing method thereof

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Effect test

Embodiment 1

[0096] The ultra-thin glass-organic film composite cover plate that present embodiment makes is as figure 2 As shown, its preparation steps are as follows.

[0097] 1) Use a 100um PET silicone protective film roll with a roll diameter of 8 inches (the roll diameter must be greater than UTG and the stiffness after bending along the roll is less than its peeling force with the silicone), the silicone protection The film consists of a PET support layer with a thickness of 100um, an adhesive layer of silica gel formed on its surface from bottom to top, and a PET thickness balance medium layer with a thickness of 50um on the surface of the adhesive layer. The coil is baked in a tunnel oven at 150°C 1 hour;

[0098] 2) Use a laser cutting machine to cut the PET thickness balance medium layer with a thickness of 50um on the upper layer according to the shape of the UTG to be coated, with a length and width tolerance of +100um to form multiple ultra-thin glass storage grooves, and a...

Embodiment 2

[0110] The ultra-thin glass-organic film composite cover plate that present embodiment makes is as image 3 As shown, its preparation steps are as follows.

[0111] 1) Use a 100um thick PET coil as a support and bake it in a tunnel oven at 150°C for 1 hour, then clean it, and after corona treatment, atomize and spray a layer of acrylic UV debonding adhesive layer on its surface as a bonding layer and Curing, the UTG with a thickness of 50um is neatly attached to the surface of the above-mentioned UV debonding adhesive layer and covered with a 50um PET thickness balance medium layer before winding;

[0112] 2) Use a laser to cut the upper 50um-thick PET thickness balance medium layer along the edge of the UTG (the size tolerance is +50um) and cut out the alignment marks. After cleaning with cleaning agent, high-pressure DI water cleaning and drying, cover with non-adhesive PE protective film, use 8-inch roll core to harvest rolls;

[0113] 3) Remove the PE protective film on ...

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Abstract

The invention discloses an ultrathin glass-organic film composite cover plate based on a roll-to-roll process and a manufacturing method thereof, the composite cover plate comprises ultrathin glass, afirst organic film layer at least formed on the surface of one side of the ultrathin glass and a black pattern layer located on the surface of the first organic film layer or below the first organicfilm layer, and the composite cover plate is manufactured by adopting the roll-to-roll process. According to the manufacturing method, the UTG stiffness problem is solved by attaching the UTG to the surface of the support, and meanwhile, the support can also be used as a part of a product protective film so that the manufacturing process can be reduced, and the cost can be saved; the thickness balance dielectric layer is increased around the UTG, and the UTG is subjected to surface treatment so that the surface energy of the UTG and the surface energy of the balance dielectric layer are unified, and it is ensured that a whole surface coating film of the UTG is uniform and consistent; a side coating is naturally wrapped so that the influence of UTG side microcracks is weakened, and the product performance is improved; laser cutting ensures that the edge of a product is tidy, the defects of residual films, burrs and the like are avoided, and compared with a piece-to-piece mode, the roll-to-roll manufacturing mode is large in productivity and high in benefit.

Description

technical field [0001] The invention relates to the technical field of flexible display terminal accessories, and more specifically, to an ultra-thin glass-organic film composite cover plate based on a roll-to-roll process and a manufacturing method thereof. Background technique [0002] As the interactive interface of the flexible display terminal, the flexible cover must not only provide the necessary protection for the display terminal, but also have the characteristics of high visible light transmittance, comfortable hand feeling, high surface hardness and strong bending resistance. The current technology development mainly focuses on two aspects of organic film and ultra-thin glass (UTG<100um), but a single technology cannot meet people's requirements for flexible cover plates, so UTG-organic film composite cover plates have become the current compromise choose. [0003] According to the preparation technical characteristics of UTG-organic film composite cover plate...

Claims

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Application Information

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IPC IPC(8): B32B17/10B32B27/36B32B37/12B32B37/24B32B38/00B32B38/10B32B38/16G09F9/30
CPCB32B27/36B32B37/1284B32B37/24B32B38/0008B32B38/0004B32B38/10B32B38/105B32B38/164B32B38/162G09F9/301B32B2037/243B32B2037/246B32B2038/0076B32B2457/20
Inventor 韦新颖李欢乐张磊李晟洙
Owner CHENGDU TOMI SHUANG DU OPTOELECTRONICS CO LTD
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