61.3: A Novel Driving Method Using 2‐Dimension Spatial Averaging for High Speed Driving of AMLCD

Abstract

A novel driving method employing 2-dimensional spatial averaging is proposed. This method successfully eliminates the vertical line artifact caused by luminance difference from unbalanced polarity. This spatial averaging method can secure charging time, minimize driver heating, and achieve higher display quality.

Developing a 110‐in. 4K × 2K TV

“…Decreasing the amount of gate drivers by half and doubling the data (hG2D) driving was the first method considered to extend the charging time. 4,5 Compared with a normal 60-Hz panel, hG2D (source) drivers are used. Also, gate and source dual-side inputs were implemented in the architecture to reduce the loading impact, as shown in Fig.…”

An 82‐in. ultra‐definition 120‐Hz LCD TV using new driving scheme and advanced Super PVA technology

“…Figure 7 shows that when resolution is increased from HD to UD at 60 Hz, the charging time is reduced from 20.7 to 7.4 µsec, a reduction factor of 2.8. 9 For reduced motion blur, when the frame rate is doubled to 120 Hz, charging time is again cut in half, to 3.7 µsec. Moreover, this shorter available charging time becomes critical in large panels, such as an 82-in.…”

Adaptive charge sharing method for liquid crystal displays with lower power consumption

“…However, column inversion is susceptible to line flicker, which is particularly noticeable when a vertical line pattern is displayed. 26 Dot inversion is widely recognized as the best inversion method for achieving a higher image quality. 27 However, dot inversion increases power consumption because multiple polarity changes occur per frame.…”