K-Mac

Electronics and Telecommunications Research Institute

Korea Research Institute of Standards and Science

Joong Whan Lee

Sun Jin Yun

Hyun Mo Cho

Yong Jai Cho

Won Chegal

Yeong Ryeol Kim

Jin Yong Kim

Yoon Jong Park

Young Sun Park

Sang Heon Ye

Ji Jong Park

Chi Woon Jeong

Young June Ko

The present invention relates to an ellipsometer, and more particularly, to an ellipsometer to find out the optical properties of the sample by analyzing the variation of the polarization of a light which has specific polarisation then reflected on a surface of the sample.

Focused-beam ellipsometer

The present invention relates to a non-contact, non-destructive measuring apparatus that measures thickness profile and refractive index distribution of a single or multiple layers of thin films by means of the principle of reflectometry. According to the present invention, by employing more than one narrow band-pass optical filters and a two-dimensional array of CCD sensors, and by finding an optimal solution for the nonlinear functional relationship between the thickness of said thin film or thin films and the corresponding refractive indexes by using an iterative numerical computation method, said apparatus simultaneously measures local area-wise thickness profile and refractive index distribution among others of said a single layer or multiple layers of thin films on a substrate.

Apparatus for measuring characteristics of thin film by means of two-dimensional detector and method of measuring the same

A method for forming a cathodoluminescent screen by forming cathodoluminescent films on the inner surface of screen panel for a field emission display by a screen printing, a spray, or an electrodeposition process. The field emission display cathodoluminescent particles for improving a luminescent emission efficiency, wherein the improved cathodoluminescent particles are formed by coating a uniform phosphor material on the surfaces of cathodoluminescent particles by an atomic layer deposition.

Method for manufacturing phosphor-coated particles and method for forming cathodoluminescent screen using the same for field emission display

Growing community of inventors

Daejeon, South Korea

Joong Whan Lee