We developed AM miniLED local dimming (LD) backlight systems on glass for 75‐inch LCD displays, with each consisting of 5184 localing dimming zones. The 75‐inch display achieves a high dynamic contrast ratio of 1,000,000 : 1 and high brightness of more than 1000nits. This backlight system grants the LCD display with HDR performance, which is comparable to those of other products (Dual‐cells and OLEDs), by making the dark state real black. In addition, the system exhibits advantages such as low fabrication cost and long life time.
In this work we propose a super Fringe-Field Switching (FFS) structure in which groove is formed between electrodes. With groove structure, both the threshold voltage V th and operation voltage V op of LCD display decrease by about 0.5 V. These improvements make great contribution to the power consumption of driving circuit and LCD panel.
In this work we propose electrical solutions for ultra high definition (UD) liquid crystal display with triple gate arrangement. Array process, TFT size, driving compensation and de-mura are used for improving the electrical performance. With these solutions, we manufactured 55" UD display with triple gate arrangement.
For high‐quality display, a novel pixel structure design‐MIS (main in sub) pixel is proposed. Normal 8‐domain pixel of vertical alignment display is divided into two parts: main‐pixel and sub‐pixel, and these two parts are separated from upper and lower. However, in MIS pixel, main‐pixel is surrounded by sub‐pixel. Through experiments and simulation, we find that the panel with MIS pixel has wider viewing angle, higher liquid crystal efficiency than that with normal pixel.
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