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Dive into the research topics where Hee-Seop Kim is active.

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Featured researches published by Hee-Seop Kim.


Optics Express | 2012

Ultrafast switching of randomly-aligned nematic liquid crystals.

Dong Han Song; Jung-Wook Kim; Ki-Han Kim; Soon Joon Rho; Hyeokjin Lee; Hee-Seop Kim; Tae-Hoon Yoon

We propose an ultrafast nematic liquid crystal (LC) device without alignment layers, where both the dark and bright states can be realized by applying an electric field. A vertical electric field is applied to vertically align the LCs for the dark state, whereas an in-plane electric field is applied to homogeneously align the LCs for the bright state. We achieved a total response time of less than 3 ms in the proposed device. This device may contribute, not only to a significant improvement of the switching speed in liquid crystal devices, but also to the simplification of the device fabrication by the omission of the alignment layer coating and the rubbing process.


SID Symposium Digest of Technical Papers | 2008

57.5: Improvement of Mura on Diagonal Direction for VA Monitor

Yong-Hwan Shin; Jae-jin Lyu; Hee-Seop Kim; Sung-Tae Shin; Jun-Hyung Souk

We described the mechanism of improvement of “Mura on Diagonal Direction”. Mura on Diagonal Direction (Diagonal Mura from now on) occurred by “Stress-Induced Birefringence” which is caused by spatial temperature variation. We suggest the way of improvement of Diagonal Mura by following three methods. 1)Improvement of spatial temperature variation of BLU(Back Light Unit). 2)Reduction of heat stress on glass by means of change the configuration of compensation film of polarizer. 3)Using glass with low photo-elastic coefficients to reduce stress-induce birefringence.


Archive | 2011

IMAGE DISPLAY DEVICE USING DIFFRACTIVE LENS

Seung Jun Jeong; Kyung-Ho Jung; Seung-Hoon Lee; Hee-Seop Kim; Hae-Young Yun; Hwi Kim; Il-joo Kim; Kyung-Bae Kim; Jung-Hwan Yi


Archive | 2009

Electro-optic unit, driving method of the electro-optic unit, and display apparatus having the same

Sung-Woon Kim; Hee-Seop Kim; Hae-Young Yun; Jian Gang Lu; Kyung-Ho Jung; Seung-Hoon Lee


Archive | 2010

LIQUID ELASTIC MEMBRANE PRISM AND 3 DIMENSION DISPLAY DEVICE HAVING THE SAME

Hwi Kim; Hae-Young Yun; JianGang Lu; Kyung-Ho Jung; Seung-Hoon Lee; Jung-Hwan Yi; Hee-Seop Kim


Archive | 2009

LIQUID CRYSTAL LENS PANEL, METHOD OF MANUFACTURING THE SAME AND DISPLAY DEVICE HAVING THE LIQUID CRYSTAL LENS PANEL

Hae-Young Yun; Hee-Seop Kim; Kyung-Ho Jung; Seung-Hoon Lee; Hwi Kim; Jung-Hwan Yi


Archive | 2009

Liquid crystal display and thin film transistor substrate therefor

Hee-Seop Kim; Jae-jin Lyu; Doo-Hwan You


Archive | 2008

Display apparatus with transistors connected to sub-pixel electrodes

JianGang Lu; Sung-Woon Kim; Seung-Hoon Lee; Hee-Seop Kim; Chun-Seok Ko; Mee-Hye Jung; Si-Duk Sung; Kwang-Chul Jung


Archive | 2016

Display apparatus and method of driving the display apparatus

Jun-Woo Lee; Hee-Seop Kim; Chang-hun Lee; Eun-Hee Han


Archive | 2010

Method of displaying stereoscopic images mixed with monoscopic images and mono/stereoscopic image display apparatus capable of performing the method

Hwi Kim; Hae-Young Yun; JianGang Lu; Kyung-Ho Jung; Seung-Hoon Lee; Jung-Hwan Yi; Hee-Seop Kim

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