Low Power |
|
Sony has reduced the
supply voltage from 12 V to 8.5 V and achieved
significant power reduction in these LCD panels
by switching from the conventional COM DC drive
to COM AC drive. (See figures 1 and 2.) |
|
Digital Interface
Support |
|
The advantages of
switching to digital include obviating the need
for D/A converters, lower noise, and adjustment-free
manufacturing. Of course, these products also
support use with a conventional analog interface. |
|
Extensive
Lineup |
|
Since these products
form an extensive product line in terms of both
pixel counts and screen sizes, they can respond
flexibly to differing end product sizes and
concepts. (See figure 3.) Sony is also planning
to expand this product line even further. |
|
Use of the
Same Driver for Multiple Panels |
|
This extensive lineup
allows drive using the same driver, even for
the EVF products. (See figure 4.) The CXM4006
is used with digital interface applications,
and the CXM3005 is used with analog interface
applications. Sony provides the digital drive
CXM4007 for compatible drive with EVF units,
and since only one driver is required, power
consumption, space, and costs are reduced. |
|
Thinner Form
Factor |
|
Sony has introduced
thinner light guide plates, has actively promoted
revised backlight structures, and has even introduced
glass etching. Thinner form factors is another
area where Sony leads the industry. (See figure
5.) For example, the ACX318ELN features a module
thickness, including the backlight, of only
2.685 mm, the top level in the industry. |
|
Ratio Viewing
Area: 100% |
|
In digital cameras
it is critically important both when composing
and taking images as well as when reviewing
images to be able to see the whole image without
any part being left out. All these panels support
the implementation of 100% ratio viewing area
displays and viewfinders. |
|
High Color
Purity |
|
The color filters
are manufactured internally by ST Liquid Crystal
Display Corp., which manufactures the panels.
This allows each color to be designed optimally
for the panel, making high color purity color
reproduction possible. |
|
Narrow Frames |
|
COG-less drive based
on low-temperature polycrystalline silicon fabrication
allows these panels to have extremely narrow
frames. This is a particularly attractive feature
for the design of digital cameras, in which
smaller models with larger LCD monitors are
now desired. |
|
Up/Down and/or
Right/Left Inversion Functions |
|
Since these panels
support up/down and/or right/left inversion
functions controlled with serial signals only,
they provide increased design flexibility in,
for example, digital cameras with a rotating
monitor. |
Digital Camera
LCD Product Line Features Low Power and Digital
Interface Support
Vol.35
