67-2: A 510-ppi 8K x 4K LTPS TFT-LCD with 120-Hz Frame-Rate Driving

Abstract

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An optimal design method for minimization of common voltage distortion in large‐sized and high‐resolution liquid crystal displays

“…The HCT levels are represented as a percentage of variation in the background luminance of 63‐levels caused by the HCT . As the T CH decreases from 11.6 to 8.6 μs, the measured HCT levels are measured to be 0.10% at a T CH of 11.6 μs, 0.26% at a T CH of 9.2 μs, 0.32% at a T CH of 8.6 μs, and 1.06% at a T CH of 7.8 μs, which sufficiently satisfied the goal of less than 2% . Figure (a) and (b) shows the crosstalk images of the panel with and without a compensation circuit, respectively.…”

“…15 As the T CH decreases from 11.6 to 8.6 μs, the measured HCT levels are measured to be 0.10% at a T CH of 11.6 μs, 0.26% at a T CH of 9.2 μs, 0.32% at a T CH of 8.6 μs, and 1.06% at a T CH of 7.8 μs, which sufficiently satisfied the goal of less than 2%. 16,22 Figure 11(a) and (b) shows the crosstalk images of the panel with and without a compensation circuit, respectively. As a result, the proposed design method, which minimizes the V COM distortion, is suitable for large-sized and high-resolution LCDs for high image quality.…”

P‐43: New Active Multiplexer Driving for Large‐Sized NMOS LTPS TFT Display

“…Compare with amorphous type, LTPS well known has high mobility, anti-stress ability and smaller size layout space [2]. Therefore, LTPS backplane panel can be designed higher aperture ratio, resolution and thinner boarder [3] [4]. Therefore the high PPI panel or the high reliability request panel some like AMOLED display might select LTPS TFT as driving backplane.…”

Line‐time optimization technology for ultra‐large and high‐resolution liquid crystal displays

“…In recent times, ultra‐high‐definition (UHD: 3840 × 2160) liquid crystal display televisions (LCD TVs) with high image quality have been sold in large numbers worldwide. Moreover, 8 k × 4 k LCD TVs have been demonstrated by some display companies . Several studies have reported on the technical aspects of realization of 8 k × 4 k LCD TVs in recent years .…”

“…Moreover, 8 k × 4 k LCD TVs have been demonstrated by some display companies. [1][2][3][4][5][6] Several studies have reported on the technical aspects of realization of 8 k × 4 k LCD TVs in recent years. [7][8][9][10] One of the most important technical issues pertaining to these LCD TVs, as reported in such studies, is the line delay that is also called a resistor-capacitor (RC) delay because of the heavy load on electrical lines.…”