48.1: A Novel Method for Image Contrast Enhancement in TFT‐LCDs: Dynamic Gamma Control (DGC)
Haeng Won Park, Seung-Woo Lee, Young Gi Kim, Jong Seon Kim, Byeungwoo Jeon, Jun Hyung Souk · SID Symposium Digest of Technical Papers · 2003
Abstract This paper describes a novel method for image contrast enhancement by controlling gamma curve in AMLCD. The key idea is to automatically manipulate gamma voltage in accordance with the image data distribution. This method is applied to 17″ SXGA LCD monitor module. The contrast ratio and the brightness are enhanced by about 3 times and 1.7 times, respectively, by using the proposed method.