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.