[FPDI] Samsung Unveils 2,560 x 1,600-pixel 10.1-inch LCD Panel

Oct 26, 2011
Shinya Saeki, Nikkei Electronics
The 10.1-inch LCD panel capable of displaying 2,560 x 1,600-pixel video. It uses IGZO TFTs as driver elements.
The 10.1-inch LCD panel capable of displaying 2,560 x 1,600-pixel video. It uses IGZO TFTs as driver elements.
[Click to enlarge image]
There are several line defects on the panel.
There are several line defects on the panel.
[Click to enlarge image]
A power consumption comparison between a 2,560 x 1,600-pixel LCD panel based on the "Pentile" method (right) and a 1,280 x 800-pixel LCD panel using normal color filters (left)
A power consumption comparison between a 2,560 x 1,600-pixel LCD panel based on the "Pentile" method (right) and a 1,280 x 800-pixel LCD panel using normal color filters (left)
[Click to enlarge image]

Samsung Electronics Co Ltd developed a 10.1-inch LCD panel that can display 2,560 x 1,600-pixel video and exhibited it at FPD International 2011, which runs from Oct 26 to 28, 2011, in Yokohama, Japan.

The LCD panel is targeted at tablet computers. It uses IGZO (In-Ga-Zn-O) TFTs, which are oxide semiconductor, as driver elements. The transmittance of the panel is 3.8%, and the power consumption of the panel excluding its backlight is 26mW.

Samsung did not disclose the carrier mobility of the panel but said, "It is about 10 times higher than that of a normal amorphous silicon TFT." Commenting on the structure and manufacturing process of the TFT, the company said, "It is not much different from that of a normal amorphous silicon TFT."

As a display method, Samsung employed the "PLS" mode, which, like IPS and FFS, expresses gradation by horizontally applying an electric field to liquid crystal molecules inside cells to drive the molecules. The brightness and contrast ratio of the panel are 300cd/m2 and 500:1, respectively. It has a 70% or higher color gamut on NTSC standards.

I found many line defects on a prototype of the panel. Samsung has not yet decided when to commercialize the panel.

2,560 x 1,600-pixel panel based on 'Pentile' method

This time, Samsung exhibited another 10.1-inch LCD panel. It can display 2,560 x 1,600-pixel video because it is based on the "Pentile" method, which uses red, green, blue and white color filters (CFs) as two pixels. Samsung plans to start volume production of the panel in 2012 at the earliest.

The brightness and contrast ratio of the panel are 400cd/m2 and 900:1, respectively. Its maximum power consumption is 3.4W, which is equivalent to that of a 10.1-inch LCD panel that has a pixel count of 1,280 x 800 and uses red, green and blue color filters.