Abstract

Curved liquid crystal displays (LCD) suffers from an issue of uneven brightness among the vertical‐alignment (VA) LCD panels based on thin glass substrates. In this work, we investigared its origin through optical simulation and successfully realized uniform brilliance for 27‐inch curved LCD panels. The optical simulation revealed that the dark areas on the bending sides of the curved LCD panel originated from the reduced azimuth angle of the liquid crystals (LC) next to the ITO trunk. This issue could be resolved by decreasing the pretilt angle of the LC on the color filter (CF) side. Through developing pretilt angle tuning (PAT) technologies, we experimentally verified that the uniform brilliance could be achieved for 27‐inch curved LCD panels with 900‐mm curvature on thin glass substrates.

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