Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Pil-soo Ahn

Eun-kyung Lee

Hang-woo Lee

Jun-young Kim

Jin-ho Lee

Young-gu Jin

Yong-Kweun Mun

Byoung-Iyong Choi

Byoung-Ho Cheong

Hang-Woo Lee

Young-Gu Jin

Sang-Yeol Kim

Byoung-lyong Choi

Jong-Min Kim

Shang-hyeun Park

Andrei Zoulkarneev

Jun-Young Kim

Hee-Kyung Kim

You-jong Kim

Serafimovi Pavel

Serafimovich Pavel

Sang-yeol Kim

A method of manufacturing a silicon optoelectronic device, a silicon optoelectronic device manufactured by the method, and an image input and/or output apparatus including the silicon optoelectronic device are provided. The method includes preparing an n- or p-type silicon-based substrate, forming a microdefect pattern along a surface of the substrate by etching, forming a control film with an opening on the microdefect pattern, and forming a doping region on the surface of the substrate having the microdefect pattern in such a way that a predetermined dopant of the opposite type to the substrate is injected onto the substrate through the opening of the control film to be doped to a depth so that a photoelectric conversion effect leading to light emission and/or reception by quantum confinement effect in the p-n junction occurs. The silicon optoelectronic device has superior light-emitting efficiency, can be used as at least one of a light-emitting device and a light-receiving device, and has high wavelength selectivity. In addition, the silicon optoelectronic device panel having the two-dimensional array of the silicon optoelectronic devices can be applied in the image input and/or output apparatus capable of directly displaying an image and/or inputting optical information in a screen.

Method of manufacturing silicon optoelectronic device, silicon optoelectronic device manufactured by the method, and image input and/or output apparatus using the silicon optoelectronic device

Provided is a white organic light emitting device including an anode, a cathode and an organic layer disposed therebetween, the organic layer having a structure wherein an arrangement of a green emissive layer and a blue emissive layer is formed on both surfaces of a red emissive layer such that the resultant structure is symmetrical around the red emissive layer, and a spacer layer is disposed between opposing surfaces of the blue emissive layer and the green emissive layer, where the white organic light emitting device including this structure exhibits a constant luminescence spectra irrespective of any change in current density. A method of forming the white organic light emitting device is also disclosed.

White organic light emitting device

An active optical filter transmits or blocks light according to whether or not a magnetic field is applied, and functions as an optical filter transmitting light having a predetermined wavelength when light is transmitted according to a magnetic field. The active optical filter includes: an optical filter layer for transmitting or blocking light according to whether or not a magnetic field is applied; and a magnetic field applying unit surrounding the optical filter layer for applying a magnetic field to the optical filter layer. The optical filter layer has a multi-layer thin layer structure which is formed of two kinds of thin layers having different respective refractive indices and sequentially and periodically stacked on a substrate.

Active optical filter controlled by magnetic field

Provided is a method of fabricating an organic light emitting device using a solution process. The method includes forming an electrode on a lower substrate; depositing an organic active material solution containing at least one photoreactive material on the electrode to form an organic active material layer; and radiating light onto the organic active material layer so that a characteristic of the light varies according to the depth of the organic active material layer in order to gradually vary a molecular orientation structure in the organic active material layer according to the depths, thereby resulting in a carrier mobility gradient according to the depths of the organic active material layer.

Organic light emitting device including photo responsive material and a method of fabricating the same

A diffraction grating including a substrate, and a grating member formed on the substrate, the grating member having a stepped structure including steps, the number of which corresponds to an odd number greater than or equal to three to provide an odd phase structure. The heights of the steps of the grating member are determined such that the light beams diffracted by their corresponding steps substantially have a phase difference of &#x3c0; with reference to a diffracted light beam of a reference wavelength.

Diffraction grating and laser television using the same

A laser television including a plurality of lasers for generating different wavelengths of interferential light; a scanner for displaying color images on a screen composed from the light; and a phase diffuser positioned between the lasers and the scanner for diffusing the light from the lasers according to the light's wavelength. The phase diffuser having a boundary surface, through which the light is outputted to the scanner. The boundary surface is slanted with a predetermined angle to regulate the range of diffraction of the light according to the wavelength.

Laser television

A field emission device and a field emission display (FED) having dual cathode electrodes. The field emission device includes a substrate; a first cathode electrode formed on the substrate; a cathode insulating layer formed on the first cathode electrode, and having a first cavity that exposes a portion of the first cathode electrode; an electron emission source disposed on the first cathode electrode and being exposed by the first cavity; a second cathode electrode formed on the cathode insulating layer, and including a cathode hole aligned with the first cavity; a gate insulating layer formed on the second cathode electrode, and having a second cavity aligned with the first cavity; and a gate electrode formed on the gate insulating layer, and having a gate hole aligned with the second cavity.

Field emission device and field emission display including dual cathode electrodes

A field emission device having a focusing control electrode, and a field emission display (FED) including the same. The field emission device includes a substrate, a cathode electrode formed on the substrate, a focusing control insulating layer formed on the cathode electrode, and having a first cavity that exposes a portion of the cathode electrode, an electron emission source disposed on the cathode electrode that is exposed by the first cavity, a focusing control electrode formed on the focusing control insulating layer and including a focusing control hole aligned with the first cavity, the focusing control electrode controlling the focus of an electron beam emitted from the electron emission source upon applying to the focusing control electrode a voltage that is lower than the potential of the cathode electrode, a gate insulating layer formed on the focusing control electrode, and having a second cavity aligned with the first cavity, and a gate electrode formed on the gate insulating layer, and having a gate hole aligned with the second cavity.

Field emission device with focusing control electrode and field emission display

The field emission device includes a substrate, a cathode, a gate insulating layer, an electron emitter, and a gate electrode. The cathode is formed on the substrate. The gate insulating layer is formed on the cathode and has a well exposing a portion of the cathode. The electron emitter is formed on the exposed portion of the cathode. The gate electrode is formed on the gate insulating layer and has a gate hole corresponding to the well. The gate electrode further includes a cylindrical electrode part that forms a focusing electric field from the gate hole toward a proceeding path of an electron beam. Accordingly, a focusing electric field can be formed around an electron beam emitted from the electron emitter so as to converge and focus the electron beam passing through the focusing electric field. As a result, color purity, brightness, and durability can be improved.

Field emission device with gate having cylindrical part

A field emission display with a double gate structure and a method of manufacturing therefor are provided. The field emission display includes a substrate, a cathode layer formed on the substrate, a gate insulating layer which is formed on the substrate and the cathode layer and has a cavity through which part of the cathode layer is exposed, a field emitter provided on the cathode layer exposed on the bottom of the cavity, a first gate layer which is formed in the gate insulating layer and in which a first gate hole having a diameter greater than that of the cavity is formed not to be exposed to an inner surface of the cavity, and a second gate layer which is formed on the gate insulating layer and in which a second gate hole is formed in a portion that corresponds to the cavity.

Field emission display with double gate structure and method of manufacturing therefor

A field emission device for displaying images with good quality is provided. The field emission device includes an anode plate, an anode electrode and a phosphor layer are formed inside of the anode plate, a cathode plate, a plurality of electron emission sources for emitting electrons which correspond to the phosphor layer and a gate electrode having gate holes through which the electrons pass are formed inside of the cathode plate, a mesh grid which is provided between the cathode plate and the anode plate and in which a plurality of electron-controlling holes are formed in a region corresponding to the gate holes, a spacer which supports the mesh grid between the anode plate and the mesh grid, and insulating layers which are formed on both sides of the mesh grid and have windows through which the plurality of electron-controlling holes are exposed and which correspond to a region where the plurality of electron-controlling holes are formed.

Growing community of inventors

Suwon-si, South Korea

Pil-soo Ahn