We successfully realized 14 inch flexible LCD display with FHD resolution. The LCD panel has the thickness less than 0.3 mm, which using new type of colorless PI as substrate. The flexibel LCD is IPS mode. The key technology includes the conbination of indium gallium zinc oxide (IGZO) TFT , Color filter on Array substrate(COA)and Black Photo Spacer(BPS).

Mini‐LED and micro‐LED are expected to be the next generation display, due to their diverse applications. In this study, we successfully fabricated an 8‐inch flexible mini‐LED display using an IGZO TFT backplane. Being cooperated with colorless polyimide (CPI) as substrate, the thickness of the mini‐LED panel is less than 0.2mm, and the transmittance is over 60%. The world's first 8‐inch, full color, flexible mini‐LED with IGZO‐TFT backplane is demonstrated.

A new photo alignment (PA) polyimide for in‐plane switching (IPS) liquid crystal display has been presented and it has good alignment performance. It realizes alignment by irradiating linearly polarized light with wavelength of 313nm. In this paper, we have study a novel 313nm PA polyimide with only one UV step. And we also have investigated the relationship between the image sticking performance and PA polyimide structure. The optical and image sticking performance of different PA polyimide are discussed in IPS mode, respectively.

The Ultraviolet induced multi‐domain Vertically Aligned (UV2A) liquid crystal mode has wide application for manufacturing large size LCD‐TV panel due to the high contrast ratio and fast response time. But the UV2A LCD mode has a main drawback that is slow recovery time for adapt to mass production. In this study, we have investigated the effect of dielectric constant, pre‐tilt, driving voltage and LC mode on the recovery time.

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