Manipulation image processing algorithmic technology to realize 1.8 RGBW transflective TFT-LCDs with adjustable colour gamut

This paper presents an adjustable colour gamut RGBW transflective liquid crystal display (ACG RGBW TRLCD), which applies a simple manufacturing process and colour processing algorithm to achieve high brightness as well as appropriated colour performance in both transmission and reflection modes. To rely on appropriating modification in sub-pixel structure design, TRLCD with higher transmittance and smaller colour distortion (average colour shift ΔE < 0.02) in transmission mode has been fabricated successfully. Moreover, with superior reflectance characteristics, the total brightness and colour gamut can also be modified under different ambience. The highest reflectance that has been fabricated successfully for a RGBW 1.8 inches panel is 8.3% with 18.4%, 8.7%, and 4.1% NTSC in reflection mode by using different algorithms. Besides, an evaluation mechanism of colour difference (chromaticity and brightness) is also developed. This not only provides flexibility for any environment but also satisfies a variety of personal hobbies. It is the best technique for both indoor and outdoor uses. And the RGBW technology dramatically improves power efficiency in high resolution displays. Only uses about 50% less power could reach to twice bright.