Thermally adaptive response-time compensation for LCDs

— This paper presents thermally adaptive driving (TAD) technology for response‐time compensation (RTC) of an LCD with an integrated sensor. The TAD system is comprised of an analog sensor, an analog sensor signal conditioning, and a digital feedback algorithm. The integrated thermal sensor provides...

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Bibliographic Details
Published in:Journal of the Society for Information Display 2008-03, Vol.16 (3), p.421-428
Main Authors: Lee, Ki-Chan, Moon, Seung-Hwan, Kim, Nam-Deog, Berkeley, Brian H., Kim, Sang Soo
Format: Article
Language:English
Subjects:
adaptive driving
feedback algorithm
Integrated thermal sensor
LCD
response time
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Summary:— This paper presents thermally adaptive driving (TAD) technology for response‐time compensation (RTC) of an LCD with an integrated sensor. The TAD system is comprised of an analog sensor, an analog sensor signal conditioning, and a digital feedback algorithm. The integrated thermal sensor provides accurate temperature measurement of the liquid‐crystal layer. The TAD controller has an eight‐step look‐up‐table (LUT) and compensates response time based on the panel temperature. The TAD system reduces response time by nearly 34% over the temperature range 0–60°C. This paper also presents a thermal sensor which has been integrated onto an LCD. The sensor uses metal (Mo/Al) film as a temperature detection layer, and its fabrication requires no manufacturing process changes. The sensor shows very good linearity, sensitivity, and reliability.
ISSN:1071-0922
1938-3657
DOI:10.1889/1.2896319