Japan Display Inc developed a reflective LCD panel whose power consumption
is as low as 3mW at the time of displaying a still image.
The panel has a screen size of 7.03 inches and is targeted at mobile devices
that require a low power consumption.
Japan Display employed a low-temperature polycrystalline silicon TFT as a
driver element. And it formed a memory circuit on each pixel to retain image
data to be written in the aim of lowering power consumption. The memory formed
on each pixel is SRAM. Moreover, the company realized natural display like
paper by optimizing the optical design of the scattering layer.
This time, Japan Display developed two types of the panel. One is a
high-reflectivity type, and the other is a high-color-purity type. They both
have a contrast ratio of 30:1. The high-reflectivity type has a reflectance of
40%, 5% color gamut on NTSC standards and pixel count of 768 x 1,024 (red,
green and blue colors assigned to each pixel).
"We can start volume production if a user requests it," the
company said.
On the other hand, the high-color-purity type has a reflectance of 28%, 36%
color gamut on NTSC standards and pixel count of 576 x 1,024 (red, green, blue
and white colors assigned to each pixel).
Japan Display will exhibit the new panel at FPD International 2012, which
will take place from Oct 31 to Nov 2, 2012, in Yokohama, Japan.
Title : Japan Display Develops Low-power-consumption Reflective LCD Panel
Description : Japan Display Inc developed a reflective LCD panel whose power consumption is as low as 3mW at the time of displaying a still image. Th...