P‐27: Adaptive Display Color Correction Based on Real‐time Viewing Angle Estimation

2006 IEEE LEOS Annual Meeting Conference Proceedings

2006

Section: Previous Workmentioning

confidence: 99%

Real-time Compensation for Angular-dependent Color Shift in TN LCDs

2006 IEEE LEOS Annual Meeting Conference Proceedings

2006

“…In their work, the viewing angle was formed by the peripheral pixels rather than the viewer's movement 0. Li et al proposed an idea of dynamically compensating for the luminance attenuation according to the viewer's position [Li 2004]. In their work, a video camera was used to trace the viewer's face for determining the viewing angle.…”

Section: Introductionmentioning

confidence: 99%

Color-accurate interactive liquid crystal display

Proceedings of the 2007 Workshop on Emerging Displays Technologies Images and Beyond: The Future of Displays and Interacton - E

2007

Viewing angle-dependent color shift is one of the major drawbacks of liquid crystal displays (LCD). As the viewing angle increases, not only the luminance but also the color saturation decreases so that the image quality is compromised. In this paper, we characterize the viewing angle-dependent color shift of an LCD and propose a compensation method of adjusting the backlights and panel transmittance simultaneously. By increasing the panel transmittance, the color shift and luminance attenuation can be minimized. By increasing or decreasing the backlight intensity, the original luminance can be preserved or the power consumption can be reduced. The proposed method uses a video camera to capture the user's location for calculating the viewing angle. We have also implemented an emulator for reproducing the viewing angle-dependent visual effects.

“…In their work, the viewing angle was formed by the peripheral pixels rather than the viewer's movement [3]. Li et al proposed an idea of dynamically compensating for the luminance attenuation according to the viewer's position [4]. In their work, a video camera was used to trace the viewer's face for determining the viewing angle.…”

Section: Introductionmentioning

confidence: 99%

22.3: Viewing Angle‐Aware Color Correction for LCDs

Symp Digest of Tech Papers

2007

Viewing angle-dependent color shift is one of the major drawbacks of liquid crystal displays (LCD). As the viewing angle increases, not only the luminance but also the color saturation reduces and compromises the image quality. In this paper, we characterize the viewing angle-dependent color shift of an LCD and propose a compensation method of adjusting the backlights and panel transmittance simultaneously. By increasing the panel transmittance, the color shift and luminance attenuation can be minimized. By increasing or decreasing the backlight intensity, the original luminance can be preserved or the power consumption can be reduced. Similar to previous approaches, the proposed method requires a video camera to capture the user's location for calculating the viewing angle. We have also implemented an emulator for reproducing the viewing angle-dependent visual effects.SID 07 DIGEST • 1069