Relationship between alignment film and image sticking

Novel, liquid crystal formula to overcome LTPS LCD image sticking without adjustment of gamma code, optical, VHR and IS evaluation

“…The low-resistivity characteristics of the directed film material itself contribute to the release of stored charges, which is conducive to achieving lower RDC; finally, when the RDC of mini-cell and when Δ VHR is at a lower level simultaneously, a TFT-LCD module with a lower surface residual level can be obtained. 6 Woo et al constructed a novel FFS structure that suppresses the accumulation of ion charges on pixel electrodes by transferring ion charges through the migration path of the organic material PI film to the common electrode. 7 By adding a new tropane base additive to the negative liquid crystal, the purpose is to reduce the accumulation of residual DC bias voltage in the liquid crystal cell and accelerate the release of charge, so as to improve the residual image and provide a new direction for the improvement of residual image in n-FFS mode.…”

“…In previous study, finding the root cause of image sticking is very difficult for us, as well as for competitors. The low‐resistivity characteristics of the directed film material itself contribute to the release of stored charges, which is conducive to achieving lower RDC; finally, when the RDC of mini‐cell and when Δ VHR is at a lower level simultaneously, a TFT‐LCD module with a lower surface residual level can be obtained 6 . Woo et al constructed a novel FFS structure that suppresses the accumulation of ion charges on pixel electrodes by transferring ion charges through the migration path of the organic material PI film to the common electrode 7 .…”