Japan Display to ship 5.5-inch WQHD display with 538 ppi pixel density in April

JDI Quad HD Panel

Japan Display Inc. announced 5.4-inch WQHD (1,440 x 2,560 pixels) display at 543 ppi for smartphones back in October last year. Today JDI has unveiled 5.46-inch WQHD (1,440 x 2,560 pixels) display at 538 ppi for smartphones. Oppo unveiled the Find 7 earlier this month that uses the same Quad HD LCD panel from JDI. It also launched Find 7a with a 1080p panel, which would go on sale first. The Find 7 with Quad HD screen is expected sometime around May or June.

Oppo Find 7 has Super Zoom mode that lets users capture images at 50-megapixel (8,160 x 6,120 pixels). The high-resolution display is expected to offer more details when viewing these images. LG was the first company to introduce 5.5-inch Quad HD panel for smartphone back in August last year, but we are yet to see a smartphone from LG with this panel.

This users JDI’s enhanced low-temperature poly-silicon (LTPS) technology that would improve the pixel aperture ratio to achieve high transmittance and low power consumption. Specifications of the new 5.46-inch panel is slightly different from the 5.4-inch WQHD panel that was unveiled last year. Check out the specifications.

Screen size (diagonal) 5.46-inch (13.87cm)
Number of pixels 1440(x RGB) x 2560 (WQHD)
Resolution density 538 ppi
Dimensions 70.94 mm (W) x 128.26 mm(H) x 1.35mm (D)
Dead-band Top 1.0 mm, side 1.0mm, bottom 5.4 mm
NTSC ratio 70 %
Contrast ratio 1000:1 (Typ.)
Viewing angle >160 degree (CR>100:1)
Surface luminance 450 cd/m2 (Typ.)

JDI has already started mass producing these display and also plans to release more panels with WQHD resolution in 2014.

Author: Srivatsan Sridhar

Srivatsan Sridhar is a Mobile Technology Enthusiast who is passionate about Mobile phones and Mobile apps. He uses the phones he reviews as his main phone. You can follow him on Twitter and Instagram