Toshiba Matsushita Display Technology Co. Ltd (TMD) recently
developed a 32-inch LCD panel in which the picture solution
was developed by Azotech. The LCD panel leverages on the OCB
(Optically Compensated Bend) and LTPS-TFT technology.
The OCB mode was
originally innovated by Matsushita Electric Industrial and
LTPS-TFT 1 technology was developed by Toshiba.
These two core technologies were then transferred to TMD,
their daughter company.
OCB mode uses the
pseudo-impulse driving method which inserts a black period
in-between two consecutive picture frames. This enables it
to achieve a better Moving Picture Response Time than PDP
and almost equivalent to CRT.
CRT
vs PDP
As PDP and LCD becoming more popular in the Consumer electronics
market, it has been noted that the moving picture quality
is inferior to that of a conventional CRT TV. One particular
complaint is that pictures on LCD TV are optically blurred
2.
For CRT, the driving
method is impulse driving which alternate light emission in
short periods with black period intermission until the next
emission. These black periods enable humans to see a very
clear moving picture.
As for
LCD, its driving method is Hold method which emits light for
the whole frame period continuously without any black period
intermission. The human eye will maintain the image memory
of the first picture even when the subsequent one appear,
hence, these two pictures are mixed and perceived as one blurred
picture.
1
LTPS-TFT stands for Low Temperature Polycrystalline Thin-Film
Transistor.
2 An optical blur
is observed by human eye when there is no black period insertion
between two frames of pictures.
J-Moss
Material Content Declaration
日本におる含有物質の表示
日本工業規格
JIS C 0950:2005 により、2006年7月1日以降に販売される特定分野の電気および電電子機器について、
製造者による含有物質の表示が義務付けられます。
機器名称：Azotech LCD Television
注：
１．“O”は、算出対象物質の含有率基準値以下であることを示す。
２．“除外項目”は、特定化学物質について、日本工業規格JIS C 0950:2005に
基づく含有マークの表示が不要であることを示します。
Japanese Material Content Declaration
A Japanese regulatory requirement,
defined by specification JIS C 0950, 2005, mandates that manufacturers provide Material Content Declarations
for certain categories of electronic products offered for sale after July 1, 2006.
Product: Azotech LCD Television
Remark:
１．“O”indicates that the level of the specified chemical substance is less than the threshold level
specified in the standard.
２．“Exempt”indicates that the specified chemical substance is exempt from marking and it is not required
to display the marking for that specified chemical substance per the standard.
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