JDI Announces Development of 5.4-inch WQHD TFT LCD Module – Oct 24, 2013– Tokyo, Japan (Techreleased) – Japan Display Inc. (JDI), a global leader in mobile display technologies, has developed a 5.4-inch WQHD (1,440 x 2,560 pixels) TFT LCD module designed for smartphone use.

5.4-inch WQHD TFT LCD Module
5.4-inch WQHD TFT LCD Module

The display allows users to enjoy precise and dynamic images featuring the world’s highest resolution density of 543ppi. The display’s low temperature poly silicon (LTPS) technology not only enables low power consumption due to increased panel transmissivity, but also a thinner module and narrower dead-band2, which suits mobile-use devices like smartphones.

In addition, JDI has also developed another high-density (473ppi) 6.2-inch WQHD TFT LCD module for smartphone use.

We exhibit these displays in Japan Display Inc. booth on October 23 to 25, 2013, during FPD International 2013 in Pacifico Yokohama, Japan.


Screen size (diagonal) 5.4-inch (13.8cm) 6.2-inch (15.8cm)
Number of pixels 1440(x RGB) x 2560 (WQHD) 1440(x RGB) x 2560 (WQHD)
Resolution density 543ppi 473ppi
Dimensions 69.59mm(W) x 126.67mm(H) x 1.12mm(D) 80.18mm(W) x 146.73mm(H) x 1.65mm(D)
Dead-band top1.0mm
NTSC ratio 70% 70%
Contrast ratio 1500:1 (Typ.) 1000:1 (Typ.)
Viewing angle >160 degree(CR>100:1) >160 degree(CR>100:1)

1 Per research conducted by JDI
2 Compared to JDI’s design simulation