Precise Lcd Driver Bit Resolution; Bright Panel Performance Even In Bright Environments; Anti-Reflection Coating (Ar Layer) - Sony LUMA Product Information Manual

Precise LCD driver bit resolution

In all LCD displays, each pixel in the LCD array is
digitally controlled by a driver signal created from
the input video signal. The key concern with this
driver signal is how many bits are used, an
important parameter that governs the dynamic
range of the LCD display.

Bright panel performance even in bright environments

With CRT monitors, picture contrast can largely be
affected when the monitor is subjected to strong
ambient light. In general, strong ambient light can
reflect from both the CRT's face glass as well as
from the R, G, and B phosphors - the latter
causing contrast degradation, or making the
picture look creamy. This is because CRT
phosphors are actually white in color, and can
Light
Ghost
Contrast
drops
Figure 5-7. Reflection on a CRT
Anti-reflection coating* (AR layer)
Although the LCD device itself does not reflect
light, an effect similar to light reflecting from a
CRT's face glass can occur depending on the
material used for the LCD display's surface. This
effect typically occurs as an ambient light source,
such as a fluorescent light, appearing as a ghost
in the screen.
LUMA monitors in professional applications
While most conventional LCDs use a 6-bit driver
signal, the LUMA Series monitors use an 8-bit
signal for this task, another essential feature that
allows them to reproduce high-contrast images
with stunning color depth and saturation.
reflect a considerable amount of ambient light
depending on its intensity. This effect is
particularly notable in dark areas of the picture.
Needless to say, LUMA Series monitors do not
use phosphors. The surface of the LCD device by
nature does not reflect light, avoiding contrast
drop due to strong ambient light.
Face Phosphor
Glass
Figure 5-8.
Reflection on a CRT -
An example of both the phosphors and
protection glass reflecting bright
ambient light.
However, the LUMA Series monitors keep this
effect to a minimum by adopting an extremely
effective anti-reflection coating on the panel
surface. This coating contributes to changing the
refractive index of ambient light, preventing it from
bouncing off the display's surface to the viewer's
eye.
* The multi-display type LUMA monitors and One-piece
type LMD-2010, LMD-1410 do not provide this feature.
Reflection from
phosphors
Reflection from
protection glass
Product Information Manual Sony Professional LCD Monitors
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