A Novel Method to Accurately Predict Color Information of Liquid Crystal Displays With Light Leakage From Black Pixels

作者：Kim Jong Man; Kim Jongbin; Cho Youngmin; Kim Kwangjoon; Lee Seung Woo

来源：Journal of Display Technology, 2013, 9(3): 162-169.

DOI：10.1109/JDT.2012.2236535

• Color matching function
• color of liquid crystal display (LCD)
• light leakage
• tri-stimulus values

This paper proposes a new method to predict color information of liquid crystal displays (LCDs) very accurately. Leaked light from black sub-pixels causes errors of the color prediction based on the individually measured RGB color information. We present a new method to remove the bad influence of the light leakage. We prove that this work can calculate the pure colorimetric information regardless of the shapes of opto-electronic transfer OETF) of LCDs. Without this technology, average errors of luminance (Delta Y) and chromaticity coordinate (Delta xy) over 30 colors were 0.58 cd/m(2) and 0.04, respectively. When we applied the proposed method, however, average errors of Delta Y and Delta xy were 0.03 cd/m(2) and 0.005, respectively. Experimental results show that our method can extract pure primary color information with extremely low errors.

• 出版日期2013-3