58.1: Distinguished Paper: Development of Super Hi‐Vision 8Kx4K Direct‐View LCD for Next Generation TV

Abstract

We have successfully developed a LCD for Super Hi-Vision. This LCD has a panel of 7680 by 4320 pixels, which is 16 times as many as that of conventional Full-HD, and it features a diagonal screen size of 85 inches. A single pixel measures 0.245 mm (103PPI). The brightness has been achieved 300 cd/m 2 or higher by using low-load interconnection and UV 2 A technologies. Additionally, the LC charging time has been extended by quad area and double source line structures. Furthermore, we realized the real-time display of huge image data with a transmission rate of 72Gbps by high-definition mounting and high-speed video processing technologies.

P‐7.3: Study on Transmittance, Color Shift and Gamut of Dielectric Multi‐layers

“…The first prototype of 85-inch 8K4K 120Hz LCD with BCE-IGZO structure from CSOT in the world attracted many peers' eyes in 2016 [5]. With the increase of TV size and refresh rate from customer's demand, IGZO is good choice to satisfy the technical index instead of a-Si [6]. From aspect of material, structure and process, evolution of design will be explored to obtain a high quality open cell (OC).…”

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

“…As the size and resolution of the LCD increase, the resistance and capacitance (RC) loads of the display panel also increase, thus making it difficult to charge the subpixel and degrading the image quality of the display. Several thin‐film transistors (TFTs) have been researched for subpixel charging in the display panel, which is highly dependent on the characteristics of the TFTs used in the panel . Amorphous silicon TFTs and low‐temperature polysilicon TFTs have been widely used to date but have suffered from low mobility and non‐uniform characteristics, respectively .…”

“…Several thin‐film transistors (TFTs) have been researched for subpixel charging in the display panel, which is highly dependent on the characteristics of the TFTs used in the panel . Amorphous silicon TFTs and low‐temperature polysilicon TFTs have been widely used to date but have suffered from low mobility and non‐uniform characteristics, respectively . In recent years, indium gallium zinc oxide TFTs with relatively high mobility and uniform characteristics were developed for the backplane of displays in order to solve the subpixel charging issues in large‐sized and high‐resolution LCDs …”

“…[1][2][3][4][5][6][7][8][9] Amorphous silicon TFTs and low-temperature polysilicon TFTs have been widely used to date but have suffered from low mobility and non-uniform characteristics, respectively. [1][2][3][4][5] In recent years, indium gallium zinc oxide TFTs with relatively high mobility and uniform characteristics were developed for the backplane of displays 6 in order to solve the subpixel charging issues in large-sized and high-resolution LCDs. [7][8][9] Nevertheless, the image quality of the display still suffers from common voltage (V COM ) distortion in large-sized and high-resolution display panels.…”

72.5L: Late‐News Paper: Development of a Novel Wide‐ Gamut 8K 120Hz LCD Complying with ITU‐R BT.2020

“…In 2011, we developed the world's first "direct-view" type display for SUPER Hi-VISION broadcast system [1] [2]. After that, a video standard ITU-R Rec.BT.2020 and an interface standard ARIB STD-B58 have been released for the nextgeneration broadcast system [3] [5].…”