TY - JOUR
T1 - Automated system for response time optimization and flicker reduction in LCD manufacturing
AU - Park, Bongim
AU - Kim, Taesung
AU - Oh, Jaeho
AU - Lee, Seung Woo
AU - Park, Jinhyeok
AU - Berkeley, Brian H.
AU - Kim, Sang Soo
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2005
Y1 - 2005
N2 - In order to meet the important requirement of fast response time for LCD-TV applications, the so-called Response Time Compensation (RTC) technique has been widely used. Defining an optimum look-up table (LUT) is a key process step for the application of this technology, but deriving optimized table entries is difficult to do and historically has taken excessive time. Expanding on our algorithmic development work presented at SID'04, we have created a fully automated system for obtaining an optimal LUT. Without requiring any operator involvement, this system quickly and objectively measures the panel under test, calculates optimized LUT values, and programs those values into the panel's non-volatile memory. Additionally, a new flicker minimization algorithm has been developed and implemented in this same system by using a digital potentiometer to set Vcom. Using this system, it is possible to optimize panel parameters for all products in the production line, resulting in very uniform image quality for all LCD-TV panels in spite of variations in process conditions.
AB - In order to meet the important requirement of fast response time for LCD-TV applications, the so-called Response Time Compensation (RTC) technique has been widely used. Defining an optimum look-up table (LUT) is a key process step for the application of this technology, but deriving optimized table entries is difficult to do and historically has taken excessive time. Expanding on our algorithmic development work presented at SID'04, we have created a fully automated system for obtaining an optimal LUT. Without requiring any operator involvement, this system quickly and objectively measures the panel under test, calculates optimized LUT values, and programs those values into the panel's non-volatile memory. Additionally, a new flicker minimization algorithm has been developed and implemented in this same system by using a digital potentiometer to set Vcom. Using this system, it is possible to optimize panel parameters for all products in the production line, resulting in very uniform image quality for all LCD-TV panels in spite of variations in process conditions.
UR - http://www.scopus.com/inward/record.url?scp=32244439988&partnerID=8YFLogxK
U2 - 10.1889/1.2036367
DO - 10.1889/1.2036367
M3 - Conference article
AN - SCOPUS:32244439988
SN - 0097-966X
VL - 36
SP - 1797
EP - 1799
JO - Digest of Technical Papers - SID International Symposium
JF - Digest of Technical Papers - SID International Symposium
IS - 1
M1 - 63.3
T2 - 2005 SID International Symposium
Y2 - 25 May 2005 through 27 May 2005
ER -