Adhesive layer-equipped transparent surface material, display device and processes for their production
a technology of transparent surface material and adhesive layer, which is applied in the direction of film/foil adhesives, synthetic resin layered products, packaging, etc., can solve the problems of cumbersome bonding between display panel and protective plate, and achieve the effect of preventing the formation of voids, facilitating the bonding, and facilitating the bonding
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[0228]Now, the process for producing an adhesive layer-equipped transparent surface material 1 in FIG. 1 will be specifically described with reference to the drawings.
(Step (a))
[0229]As shown in FIGS. 2 and 3, a barrier portion-forming photocurable resin composition is applied by a dispenser (not shown) or the like along a light-shielding printed portion 12 at the peripheral portion of a protective plate 10 (a transparent surface material).
(Step (b))
[0230]Then, as shown in FIGS. 4 and 5, a layer portion-forming photocurable resin composition 26 is supplied to a rectangular region 24 surrounded by an uncured barrier portion 22 on the protective plate 10. The amount of the layer portion-forming photocurable resin composition 26 to be supplied, is preliminarily set to be an amount such that the space to be sealed by the uncured barrier portion 22, the protective plate 10 and the protective film 16 (see FIG. 6), is filled by the layer portion-forming photocurable resin composition 26.
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examples
[0274]Now, practical Examples will be shown to confirm the effectiveness of the present invention, but it should be understood that the present invention is by no means restricted to such Examples.
(Number Average Molecular Weight)
[0275]The number average molecular weight of an oligomer was obtained as a number average molecular weight as calculated as polystyrene by using a GPC (gel permeation chromatography) measuring apparatus (HLC-8020, manufactured by TOSOH CORPORATION).
[0276]The viscosity of a photocurable resin composition was measured by an E-model viscometer (RE-85U, manufactured by TOKI SANGYO CO., LTD.)
(Haze Value)
[0277]The haze value was obtained by measurement in accordance with ASTM D1003 by using Haze-Gard II, manufactured by Toyo Seiki Seisaku-Sho, Ltd.
[0278]To determine the shear modulus of the layer portion of the adhesive layer after curing, using a rheometer (modular rheometer Physica MCR-301, manufactured by Anton Paar), a space between ...
examples 1 to 20
Transparent Surface Material
[0280]Along the peripheral portion of one surface of soda lime glass having a length of 100 mm, a width of 100 mm and a thickness of 3 mm, a light-shielding printed portion was formed in a frame-form by ceramic printing containing a black pigment, so that a light-transmitting portion would have a length of 68 mm and a width of 68 mm. Then, over the entire surface of the back side of the light-shielding printed portion, an antireflection film (ReaLook X401, manufactured by NOF Corporation) was bonded in such a state that a protective film is attached thereto, to prepare a protective plate A.
(Supporting Surface Material)
[0281]On one side of a transparent plate made of soda lime glass having a length of 100 mm, a width of 100 mm and a thickness of 3 mm, a protective film (Puretect VLH-9, manufactured by Tohcello Co., Ltd.) having a length of 130 mm, a width of 130 mm and a thickness of 0.075 mm was bonded so that the adhesive surface of the protective film w...
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Abstract
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