Rohm & Haas Electronic Materials LLC

Dupont Toray Specialty Materials Kabushiki Kaisha

Rohm and Haas Electronic Materials Korea Ltd.

Ddp Specialty Electronic Materials Us, LLC

Dupont Specialty Materials Korea Ltd.

Ddp Specialty Electronic Materials US 9, LLC

Dupont Electronic Materials International, LLC

Anna Ya Ching Feng

Shunya Takeuchi

Yutaka Oka

Jung Hye Chae

Masaaki Amako

Fumito Nishida

Lu Zhou

Lu Zou

A UV curable silicone composition has exceptional curability by ultraviolet irradiation. The UV curable silicone composition includes (A) an organopolysiloxane composition selected from the following: (A-1) an organopolysiloxane composition comprising a linear organopolysiloxane in which both ends of the molecular chain are capped with alkenyl groups and/or a branched organopolysiloxane containing at least 2 alkenyl groups at the ends of the molecular chain, and an organopolysiloxane containing at least 2 thiol groups in side-chains of the molecular chain, wherein the thiol group content is 1% by mass or more per molecule, (A-2) an organopolysiloxane composition comprising a linear organopolysiloxane in which both ends of the molecular chain are capped with thiol groups, wherein the thiol group content is 1% by mass or more per molecule, and an organopolysiloxane containing at least 2 alkenyl groups in side-chains of the molecular chain and/or a resinous organopolysiloxane containing at least 2 alkenyl groups at the ends of the molecular chain, or (A-3) an organopolysiloxane composition comprising an alkenyl group- and aryl group-containing organopolysiloxane and a multifunctional thiol compound, but furthermore comprising an alkenyl group-containing resinous organopolysiloxane when the multifunctional thiol compound contains only a bifunctional thiol compound, and (B) a silicone-compatible photo-initiator comprising a compound selected from the following: (B-1) an alpha-hydroxyacetophenone, (B-2) a combination of an alpha-hydroxyacetophenone and an alpha-aminoalkylphenone, or (B-3) a combination of an alpha-hydroxyacetophenone and a mono-acylphosphine oxide, wherein the ratio between the thiol groups and alkenyl groups (SH/Vi ratio) included in the organopolysiloxane composition is 0.6 or more.

UV curable silicone composition and an encapsulant or a sheet film thereof

The present invention relates to method for producing LED by one step film lamination. The method comprises: laminating two or more LEDs with two or more colored phosphor films by one step film lamination; wherein each of the colored phosphor film comprises each other different colored phosphor composition which has a Maximum tan δ; and the difference of each Maximum tan δ varies within a range of 0-30%. In the present invention, the method for producing a LED may greatly improve production efficiency (i.e., dual and multi-color LEDs in one step) and lower cost of ownership. Further, it may improve uniformity of phosphor dispersion, thereby improve color quality of LEDs.

Method for producing LED by one step film lamination

A UV curable silicone composition has exceptional curability by ultraviolet irradiation. The UV curable silicone composition includes

Disclosed is a method of making an optoelectronic device that incorporates a crosslinked resin-linear polyorganosiloxane.

Method of manufacturing an optoelectronic device

Growing community of inventors

Taoyuan, Taiwan

Anna Ya Ching Feng