Authors:
Heebum Park
;
Guiwon Seo
and
Chulhee Lee Lee
Affiliation:
School of Electrical and Electronics Engineering,Yonsei University, Korea, Republic of
Keyword(s):
LCD, LUT, Interpolation, Overdrive, Quadratic function.
Related
Ontology
Subjects/Areas/Topics:
Applications and Services
;
Biomedical Engineering
;
Biomedical Instruments and Devices
;
Computer Vision, Visualization and Computer Graphics
;
Display Technology
;
Image and Video Coding and Compression
;
Image Formation and Preprocessing
;
Imaging and Visualization Devices
;
Photonics
;
Photonics, Optics and Laser Technology
Abstract:
Overdriving schemes are used to improve the response time of LCD (Liquid Crystal Display). Typically they are implemented by using LUT (Look-Up Table) within an image processor. However, the size of LUT is limited by the physical memory size and system cost. In actual implementation of LUT, final overdriving values are obtained using interpolation methods. However, interpolation errors may cause some display artifacts and response time delay. In this paper, we present an improved method for LUT implementation using linear interpolation and piecewise least-square polynomial regression to reduce such errors. The proposed method improves LUT performance with reduced memory requirements.