P‐12.10: A Film Combination to Enhance the Transmittance and Improve the Color Shift of LCD

Abstract

We fabricated a film combination which has a high transmittance in the perpendicular angle and no color shift in different viewing angles. We optimized the TFT film combination by using TFCal which is a film simulation software, and finally got a better film combination. There is destructive interference or constructive interference between the interfaces of composite films composed of different refractive index materials in TFT. This interference brings different transmittance and reflectivity for different wavelengths, which will change with the viewing angle, thus affecting the final display effect of TFT‐LCD, which is mainly reflected in the influence on transmittance and color shift. The ILD film thickness of 5500 Å & 4600 Å & 5950 Å have been verified in practice. The result shows that when ILD thickness is 5950Å, both of the color shift values of white picture and black picture are good, and the transmittance is high as well.