Samsung Sdi Co., Inc.

Samsung Display Devices Co., Ltd.

Seong-taek Lee

Jang-Hyuk Kwon

Si-hyun Lee

Kyu-hwan Choi

Joo-sang Park

Lee-gon Kim

Young-sook Choi

Tae-min Kang

A method for manufacturing a color filter by thermal transfer using a laser beam with uniform energy distribution. The method includes forming a black matrix pattern on a substrate by photolithography. A transfer film having thermal color layers is placed on the substrate, and a laser beam with uniform energy distribution irradiates the transfer film to transfer the color layers onto the substrate. The substrate onto which the color layer has been transferred, is cured at 200&tilde;300&deg; C. Therefore, by using the laser beam with uniform energy distribution, or a laser beam which scans by dithering, for the thermal transfer, the quality of an image formed at the edges of the is improved and the surface roughness is reduced, resulting in an excellent color filter.

Method for manufacturing color filter

A thermal transfer film is provided. The thermal transfer film having a support layer, light absorbing layer and a transfer layer further includes an insulating layer between the support layer and the light absorbing layer. The reverse transmission of heat is minimized, thereby improving the thermal energy transmission efficiency from the light absorbing layer to the transfer layer and performing a transfer process efficiently. Therefore, the quality of an image is enhanced.

Thermal transfer film

Growing community of inventors

Suwon, South Korea

Seong-taek Lee