摘要:
This disclosure provides a method for laminating an adhesive tape and a lead frame, more specifically to reduce the warpage of a lead frame after heated lamination in which an adhesive tape for manufacturing semiconductor devices is attached to the lead frame, satisfying all the properties required for lamination, and avoiding adhesive residues from adhesive tapes and the leakage of a sealing resin. A method for laminating an adhesive tape and a lead frame comprises laminating an adhesive tape and a lead, wherein the lamination temperature of an adhesive tape surface and that of a lead frame surface are different from each other, for example, wherein the lamination temperature of the lead frame surface is lower than that of the adhesive tape surface by about 1 to about 200° C.
摘要:
Disclosed herein is a diffusion sheet for use in a backlight unit of a TFT-LCD. Specifically, this invention provides a diffusion sheet including a transparent base sheet, a light-diffusing layer laminated on one surface of the base sheet, and an antiblocking layer laminated on the other surface of the base sheet, the base sheet satisfying a refractive index represented by a predetermined equation. According to this invention, the diffusion sheet for a display can uniformly diffuse light, which is radiated from a light source lamp positioned at a side surface or the back surface of the display, while passing such light therethrough, thus obtaining clear display images, resulting in increased total light transmittance, light diffusibility, and luminance.
摘要:
Disclosed herein is a light-diffusing film having pores for use in a backlight unit of a TFT-LCD. The light-diffusing film having pores of this invention comprises a base sheet composed of a synthetic resin; a light-diffusing layer laminated on one surface of the base sheet and having pores formed by applying a composition including a light-diffusing resin and light-diffusing particles contained in the light-diffusing resin under controlled composition supply pressure of 1˜5 kgf/cm2 and travel speed of the base sheet of 10˜200 m/min; and an antiblocking layer laminated on the other surface of the base sheet. According to this invention, the light-diffusing film has improved total light transmittance and light diffusibility owing to the pores formed in the light-diffusing layer, and is thus usefully applicable to a backlight unit of a TFT-LCD.
摘要翻译:这里公开了具有用于TFT-LCD的背光单元的孔的光漫射膜。 本发明的具有孔的光漫射膜包括由合成树脂构成的基片; 层叠在基片的一个表面上的光漫射层,具有通过在受控组成物供给压力为1〜5kgf / cm 2下涂布含有光扩散性树脂的光扩散性树脂和光扩散性粒子的组合物而形成的孔, cm 2,基片的行进速度为10〜200m / min; 以及层压在基片的另一个表面上的防粘连层。 根据本发明,光漫射膜由于在光漫射层中形成的孔而具有改善的全光线透射率和光漫射性,因此可用于TFT-LCD的背光单元。
摘要:
Disclosed herein is a heat-shrinkable co-polyester film containing terephthalic acid or dimethyl terephthalate as a dicarbonic acid component, and ethylene glycol, neopentyl glycol and propylene glycol as diol components, in which the co-polyester film has a crystallization temperature of 80–220° C., and a heat shrinkage (%) higher than 30% in at least one direction of longitudinal and transverse directions in 90° C. hot water. This film is suitable for use as various wrapping materials, such as covering, binding and casing materials. Particularly, this film is used to cover a cap, body and shoulder, etc. of various vessels and rod-shaped molded articles and thus to provide labeling, protection, binding or an improvement in product value. Also, this film can be used for multi-package.
摘要:
The present invention relates to a heat-resistant adhesive sheet (tape). More particularly, the invention relates to a heat-resistant adhesive sheet of high reliability and workability, in which crosslink reaction can be induced through irradiation of energy rays on an adhesive layer to achieve heat resistance at high temperature and also high dimension stability in parts, to achieve release without leaving any adhesive residues on an attached surface in releasing the layer and also to achieve no oxidation on the attached surface, e.g., a metallic surface at a high temperature. To this end, the heat-resistant adhesive sheet (tape) according to the invention is characterized by comprising a heat-resistant substrate, and an adhesive layer formed on at least one side of the heat-resistant substrate and made with a coating of liquid comprising energy ray curable olygomer resin, thermosetting adhesive resin, energy ray initiator and thermosetting agent, the adhesive layer being cured and heat resistant by irradiating energy rays to induce crosslink reaction.
摘要:
An approach is provided for depositing a material onto a printed circuit board layer. The approach includes steps of treating surface of a base film, forming a tie layer on the base film, forming a metal conductive layer on the tie layer, and depositing a metal on the metal conductive layer by radiating electronic beams to form a metal plated layer thereon. The above steps are continuously performed in a vacuum chamber. The approach also includes an unwinding roller, film guide rollers, a surface treating part, tie layer and copper conductive layer, a vacuum depositing part for depositing a metal plated layer on the metal conductive layer by radiating electronic beams, and a winding roller, all of which are provided in a vacuum chamber.
摘要:
The present invention relates to an optical sheet for a backlight unit of a TFT-LCD and a TFT-LCD including the same. The optical sheet of the present invention includes a transparent base sheet, and a light diffusion layer in which a diffusion pattern comprised of a plurality of protrusions is formed on the transparent base sheet. The diffusion pattern satisfies an aspect ratio of 0.8 or more, the aspect ratio being a ratio of a radius (l) of a unit body portion of the protrusion, which is formed on the transparent base sheet, to a thickness (d) of the protrusion.
摘要:
Disclosed herein is a polyester film for flexographic printing plates, which comprises: a polyester base layer (B); a detachable adhesive layer (A) formed on one surface of the polyester base layer using polyester resin and acrylic resin; and an antistatic layer (C) formed on the other surface of the polyester base layer. In the disclosed polyester film, the detachable adhesive layer is formed on one surface of the polyester base layer using polyester resin in combination with acrylic resin, and thus can have increased adhesion to the base layer and photosensitive resin. Also, the other surface of the polyester base layer has formed thereon the antistatic layer, which has excellent antistatic performance and, at the same time, is not transferred to a surface opposite thereto and is not greatly influenced by humidity. Thus, the disclosed polyester film is suitable for flexographic printing plates.
摘要:
Disclosed are a silicone release composition and a silicone release plastic film using the same. The silicone release composition comprises a vinyl group-containing polysiloxane, hydrogen polysiloxane, epoxycyclohexyl group-containing silane, platinum catalyst, and polyether or lauryl ether. When the silicone release composition is coated on an oriented polyester film during a manufacturing process thereof in an in-line coating mode, a release film having excellent silicone curing characteristics, interfacial adhesion between a silicone layer and plastic film and peel characteristics can be obtained.
摘要:
Disclosed herein is a heat-shrinkable co-polyester film having terephthalic acid and ethylene glycol as main components and containing 1,4-cyclohexanedimethanol at the amount of 3–40 mol %. The heat-shrinkable co-polyester film has a crystallization temperature of 80–220° C., a heat shrinkage (%) higher than 30% in at least one direction of longitudinal and transverse directions in 90° C. hot water, and a maximum shrinkage stress lower than 3 kg/mm2. The film is suitable for use as various wrapping materials, such as covering, binding and casing materials. Particularly, the film is used to cover a cap, body and shoulder, etc. of various vessels and rod-shaped molded articles and thus to provide labeling, protection, binding or an improvement in product value. Also, the film can be used for multi-package.
摘要翻译:本发明公开了以对苯二甲酸和乙二醇为主要成分并含有3-40摩尔%的1,4-环己烷二甲醇的热收缩性共聚酯薄膜。 热收缩性共聚酯膜的结晶温度为80-220℃,在90℃热水中的纵向和横向的至少一个方向上的热收缩率(%)高于30%,并且 最大收缩应力低于3 kg / mm 2。 该膜适用于各种包装材料,如覆盖物,粘合剂和套管材料。 特别地,该膜用于覆盖各种容器和棒状模制品的帽,身体和肩部等,从而提供产品价值的标签,保护,结合或改进。 此外,该片可用于多包装。