H01L33/34

Resin molding, surface mounted light emitting apparatus and methods for manufacturing the same

The present invention provides a surface mounted light emitting apparatus which has long service life and favorable property for mass production, and a molding used in the surface mounted light emitting apparatus. The surface mounted light emitting apparatus comprises the light emitting device 10 based on GaN which emits blue light, the first resin molding 40 which integrally molds the first lead 20 whereon the light emitting device 10 is mounted and the second lead 30 which is electrically connected to the light emitting device 10, and the second resin molding 50 which contains YAG fluorescent material and covers the light emitting device 10. The first resin molding 40 has the recess 40c comprising the bottom surface 40a and the side surface 40b formed therein, and the second resin molding 50 is placed in the recess 40c. The first resin molding 40 is formed from a thermosetting resin such as epoxy resin by the transfer molding process, and the second resin molding 50 is formed from a thermosetting resin such as silicone resin.

Micro light-emitting diode displays with improved power efficiency
11665929 · 2023-05-30 · ·

Micro light-emitting diode displays and methods of fabricating micro LED displays are described. In an example, a micro light emitting diode pixel structure includes a plurality of micro light emitting diode devices in a dielectric layer. Each of the micro light emitting diode devices have Mie scattering particles thereon. A transparent conducting oxide layer is above the dielectric layer and on the Mie scattering particles. A binder material layer is above the transparent conducting oxide layer. The binder material layer has a plurality of Rayleigh scattering particles therein.

Micro light-emitting diode displays with improved power efficiency
11665929 · 2023-05-30 · ·

Micro light-emitting diode displays and methods of fabricating micro LED displays are described. In an example, a micro light emitting diode pixel structure includes a plurality of micro light emitting diode devices in a dielectric layer. Each of the micro light emitting diode devices have Mie scattering particles thereon. A transparent conducting oxide layer is above the dielectric layer and on the Mie scattering particles. A binder material layer is above the transparent conducting oxide layer. The binder material layer has a plurality of Rayleigh scattering particles therein.

Light-emitting device

A light-emitting device includes a substrate comprising a base member, a first wiring, a second wiring, and a via hole; at least one light-emitting element electrically connected to and disposed on the first wiring; and a covering member having light reflectivity and covering a lateral surface of the light-emitting element and a front surface of the substrate. The base member defines a plurality of depressed portions separated from the via hole in a front view and opening on a back surface and a bottom surface of the base member. The substrate includes a third wiring covering at least one of inner walls of the plurality of depressed portions and electrically connected to the second wiring. A depth of each of the plurality of depressed portions defined from the back surface toward the front surface is larger on a bottom surface side than on an upper surface side of the base member.

Light-emitting device

A light-emitting device includes a substrate comprising a base member, a first wiring, a second wiring, and a via hole; at least one light-emitting element electrically connected to and disposed on the first wiring; and a covering member having light reflectivity and covering a lateral surface of the light-emitting element and a front surface of the substrate. The base member defines a plurality of depressed portions separated from the via hole in a front view and opening on a back surface and a bottom surface of the base member. The substrate includes a third wiring covering at least one of inner walls of the plurality of depressed portions and electrically connected to the second wiring. A depth of each of the plurality of depressed portions defined from the back surface toward the front surface is larger on a bottom surface side than on an upper surface side of the base member.

LIGHT-EMITTING DIODE (LED) PACKAGE WITH REFLECTIVE COATING AND METHOD OF MANUFACTURE

A light-emitting diode (LED) package and method of manufacture are described. An LED package includes an LED die that has a top surface, a bottom surface and side surfaces. The package further includes a wavelength converting element having a top surface, a bottom surface and side surfaces. The bottom surface of the wavelength converting element is adjacent the top surface of the LED die. The package further includes a light reflecting coating surrounding at least the side surfaces of both the LED die and the wavelength converting element. The light reflective coating has at a least a portion that extends above the top surface of the wavelength converting element.

LIQUID CRYSTAL DISPLAY APPARATUS
20170372667 · 2017-12-28 ·

A liquid crystal display apparatus is provided. The liquid crystal display apparatus includes a graphene LED backlight source, a first polarizing film, a first substrate, a liquid crystal layer, a second substrate and a second polarizing film. The graphene LED backlight source is used for providing light output, the first polarizing film is used for converting the light output from the backlight source into a polarized light. The liquid crystal layer includes liquid crystal molecules used for deflecting the polarized light from the backlight source to form a polarized output light, and the second polarizing film is used for emitting the polarized output light.

LIQUID CRYSTAL DISPLAY APPARATUS
20170372667 · 2017-12-28 ·

A liquid crystal display apparatus is provided. The liquid crystal display apparatus includes a graphene LED backlight source, a first polarizing film, a first substrate, a liquid crystal layer, a second substrate and a second polarizing film. The graphene LED backlight source is used for providing light output, the first polarizing film is used for converting the light output from the backlight source into a polarized light. The liquid crystal layer includes liquid crystal molecules used for deflecting the polarized light from the backlight source to form a polarized output light, and the second polarizing film is used for emitting the polarized output light.

LIGHT-EMITTING MATERIAL, METHOD FOR PRODUCING LIGHT-EMITTING MATERIAL AND DISPLAY APPARATUS
20170358745 · 2017-12-14 · ·

A light-emitting material, a method for producing the light-emitting material and a display apparatus are provided. An average particle size of the light-emitting material is 0.1 μm to 30 μm, and an average distance between outermost quantum dots of a particle of the light-emitting material and a surface of the particle of the light-emitting material is 0.5 nm to 25 nm, or a minimum distance between the outermost quantum dots of a particle of the light-emitting material and the surface of the particle of the light-emitting material is 0.1 nm to 20 nm.

NANOSCALE WIRES WITH TIP-LOCALIZED JUNCTIONS

The present invention generally relates to nanoscale wires and, in particular, to nanoscale wires with heterojunctions, such as tip-localized homo- or heterojunctions. In one aspect, the nanoscale wire may include a core, an inner shell surrounding the core, and an outer shell surrounding the inner shell. The outer shell may also contact the core, e.g., at an end portion of the nanoscale wire. In some cases, such nanoscale wires may be used as electrical devices. For example a p-n junction may be created where the inner shell is electrically insulating, and the core and the outer shell are p-doped and n-doped. Other aspects of the present invention generally relate to methods of making or using such nanoscale wires, devices, or kits including such nanoscale wires, or the like.