Lumileds LLC

Agilent Technologies, Inc.

Koninklijke Philips Corporation N.v.

Avago Technologies General IP (singapore) Pte. Ltd.

Danielle Russell Chamberlin

Daniel Bernardo Roitman

Erik Maria Roeling

Kentaro Shimizu

Yu-Chen Shen

Sumit Gangwal

Peter Josef Schmidt

Oleg Borisovich Shchekin

William R Trutna, Jr

Hisashi Masui

Ying-Lan Chang

Michael H Leary

Tze Yang Hin

Luke Gordon

Maozi Liu

Niek Van Leth

David B Roberts

David P Bour

Hans-Helmut Bechtel

Mark Melvin Butterworth

Tetsuya Takeuchi

Michael R T Tan

Matthias Heidemann

Danny E Mars

Peter R Robrish

Hans Helmut Bechtel

Yoon-Kyu Song

Gregoire Denis

David S Roberts

Joan Liu

Sungwon David Roh

A method includes depositing a layer comprising a photoinitiator and a curable material onto a surface and applying a nanoimprint mold on the layer of curable material to form a mesh comprising intersecting walls defining cavities. After applying the nanoimprint mold, the mesh is illuminated with light causing decarboxylation of the photoinitiator to initiate curing of the curable material. After curing the curable material, the nanoimprint mold is removed and a wavelength converting material is deposited in the cavities to form an array of wavelength converting pixels.

Wavelength converting layer patterning for LED arrays

The present invention encompasses materials and methods for catalyzing the cross-linking and curing of siloxane polymers. In particular, the present disclosure provides materials, methods, and conditions for vapor phase catalysis for curing organosiloxane polymers and resins, including resin linear organosiloxane block copolymers, as well as the incorporation of those methods into processes for making light emitting devices, including light emitting diodes.

Vapor-phase curing catalysis and passivation of siloxane resins in LED applications

An optical isolation material may be applied to walls of a first cavity and a second cavity in a wafer mesh. A wavelength converting layer may be deposited into the first cavity to create a first segment and into the second cavity to create a second segment. The first segment may be attached to a first light emitting device to create a first pixel and the second segment to a second light emitting device to create a second pixel. The wafer mesh may be removed.

Converter fill for LED array

A first component with a first sidewall and a second component with a second sidewall may be mounted onto an expandable film such that an original distance X is the distance between the first sidewall and the second sidewall. The expandable film may be expanded such that an expanded distance Y is the distance between the first sidewall and the second sidewall and expanded distance Y is greater than original distance X. A first sidewall material may be applied within at least a part of a space between the first sidewall and the second sidewall. The expandable film may be expanded such that a contracted distance Z is the distance between the first sidewall and the second sidewall, and contracted distance Z is less than expanded distance Y.

Monolithic segmented LED array architecture

A wavelength converting layer is partially diced to generate a first and second wavelength converting layer segment and to allow partial isolation between the first segment and the second segment such that the wavelength converting layer segments are connected by a connecting wavelength converting layer. The first and second wavelength converting layer segments are attached to a first and second light emitting device, respectively to create a first and second pixel. The connecting wavelength converting layer segment is removed to allow complete isolation between the first pixel and the second pixel. An optical isolation material is applied to exposed surfaces of the first and second pixel and a sacrificial portion of the wavelength converting layer segments and optical isolation material attached to the sacrificial portion is removed from a surface facing away from the first light emitting device, to expose a emitting surface of the first wavelength converting layer segment.

Monolithic LED array structure

A method includes depositing a layer comprising a photoinitiator and a curable material onto a surface and applying a nanoimprint mold on the layer of curable material to form a mesh comprising intersecting walls defining cavities. After applying the nanoimprint mold, the mesh is illuminated with light causing decarboxylation of the photoinitator to initiate curing of the curable material. After curing the curable material, the nanoimprint mold is removed and a wavelength converting material is deposited in the cavities to form an array of wavelength converting pixels.

A light emitting diode (LED) device may include an LED die having a first surface on a substrate. A first phosphor layer may be formed on a second surface and sides of the LED die. The second surface may be opposite the first surface. A second phosphor layer may be formed on the first phosphor layer. The second phosphor layer may have a peak emission wavelength (L2) located between a peak emission wavelength of the LED die (LD) and a peak emission wavelength of the first phosphor layer (L2).

Phosphor converted LED with high color quality

A wavelength converting layer is disclosed that includes a plurality of phosphor grains 50-500 nm in size and encapsulated in cerium free YAG shells and a binder material binding the plurality of phosphor grains, the wavelength converting layer having a thickness of 5-20 microns attached to the light emitting surface.

A light emission device comprising a light emitting element, a wavelength conversion (e.g. phosphor) element, and a filter that reduces Color over Angle (CoA) effects by at least partially reflecting light from the light emitting element that strike the filter at near-normal angles of incidence. In some embodiments, a combined phosphor and filter layer is formed over the LED die. The filter may comprise a dispersion of self-aligning moieties, such as dielectric platelets in a film that is vacuum laminated to the LED structure. Xirallic&#xae; Galaxy Blue pigment, comprising an aluminum oxide core coated on both sides with thin films of SnO, and TiO, and Ronastar&#xae; Blue, comprising Calcium Aluminum Borosilicate and TiOmay provide the dielectric platelets.

Controlling LED emission pattern using optically active materials

Growing community of inventors

Belmont, CA, United States of America

Danielle Russell Chamberlin