51‐1: Novel Pixel Structure for 8K QUHD LCD Panel with the Enhanced Optical Performances

Abstract

We report on novel pixel architecture for improving the transmittance and reducing the gamma distortion to minimize the color shift in an 8K QUHD LCD panel with the hG-2D technology. In our LCD panel, each pixel has a unique electrode structure which is mixed with conventional microslits and reversed those. It is named "multi-domain reversedslit VA mode (MRS-VA)". This MRSVA-LCD has the excellent transmittance by matching the LC distortions on the vertical electrode and two data lines which is asymmetrically positioned. Besides, by shielding the LC distortion line at the oblique viewing angle, the gamma distortion can be effectively suppressed. Through our pixel structure, superior performances to conventional LCD could be clearly proved (GDI value: 0.345 and panel transmittance (T): 3.7%). Additionally, by demonstrations of overcoming the crosstalk and bruising defects, we demonstrated that MRSVA-LCD could be applied to the commercial 8K panels manufactured by the mass production.

A Light-Mixing Liquid Crystal Lens-Like Cell to Decrease Color Shift and Tune Brightness for Displays

“…Therefore, the color shift and brightness loss of LCDs are serious at large viewing angles. Moreover, the ultra-high-definition display is the development trend of display areas nowadays [3][4][5][6], but the black matrix of highresolution displays aggravates the off-axis angle color shift and brightness loss to some extent. Some researchers have contributed to this issue; a multidomain pixel structure can decrease color shift at a large viewing angle [7][8][9][10][11][12], but the brightness loss is aggravated due to its lower aperture ratio.…”

Review of Capacitive Touchscreen Technologies: Overview, Research Trends, and Machine Learning Approaches

“…Displays have evolved dramatically from cathode-ray tube (CRT) [ 1 , 2 , 3 , 4 ] via plasma display panel (PDP) [ 5 , 6 , 7 , 8 , 9 , 10 ] and liquid crystal display (LCD) [ 11 , 12 , 13 , 14 , 15 ] to cutting-edge organic light-emitting diode (OLED) [ 16 , 17 , 18 , 19 , 20 , 21 , 22 ] and micro-LED technologies [ 23 , 24 , 25 , 26 , 27 , 28 ]. This evolution has led to larger screen-size, slimmer design, lower weight, higher resolution, faster frame rate, brighter luminance, wider color gamut, longer life time, and lower power consumption in the large-size display applications such as monitors, televisions (TVs), and digital signage [ 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ]. The resolutions of off-the-shelf displays have increased up to 8K (7680 × 4320) along with the high frame rate of 120 Hz and the larger screen sizes than 55-inch have taken more than 30% of overall TV set sales [ 40 , 41 ].…”

P‐11.2: Novel Pixel Design for Transmittance and Picture Quality Improvement

“…However, resolution advancement challenges the transmittance and some picture quality, such as skin color shift and cross-talk. The balance of high-level display application and superior performance has always been the innovation and research focus [2][3][4]. This work aims at providing a novel pixel design to improve the transmittance and decrease the risk of color-shift and cross-talk.…”