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Announcement of "LC30" LCD Glass Substrate
2012.03.21
March 21, 2012
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Announcement
of "LC30"
LCD Glass Substrate
-- Introducing Green
Glass with Lower Heat Compaction during High Temperature Process and Light
Weight --
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AvanStrate Inc.
("AvanStrate"; Address: 2
Chitose-cho, Yokkaichi-shi, Mie, Japan; Representative Director: Jun Makino)
hereby introduces a new type of glass substrate, "LC30", suitable for
manufacturing low temperature poly-silicon (LTPS) TFT that requires processing
at higher temperature when compared to amorphous silicon (α-Si) TFT used in manufacturing LCD panels.
The
characteristics of "LC30" are as follows:
In
manufacturing LCD panels for devices such as smartphones and tablet PCs, which
require higher precision compared to conventional display panels, the use of LTPS-TFT
instead of α-Si-TFT
is becoming more prevalent.
On
the other hand, the glass tends to shrink due to heat compaction during the
heat treatment process used in manufacturing the LCD panels. The manufacturing
process for LTPS-TFT
requires a higher temperature compared to the manufacturing process for
α-Si-TFT. This increases the heat compaction rate, which may potentially result
in an increase in product defects from gap in pitch, etc., due to alignment
problems.
With
the newly introduced "LC30", AvanStrate
successfully reduced the heat compaction rate by approximately one half when
compared to our conventional products (as measured by AvanStrate).
In
general, in an effort to reduce glass compaction, the specific density of glass
tends to become higher. However, "LC30" achieves lower compaction rates while keeping
the specific density at approximately the same level as that of our
conventional products. Because of this, there is a reduction of deflection
during the manufacturing process as well as a stable thermal compaction rate.
Further, it will contribute to reducing the weight of the LCD panels overall.
Additionally, there is a rapid trend in pursuing thinness and
lightness of end-products such as smartphones, and in responding to such trend,
a so-called "slimming (chemical polishing)" process is conducted after the "pasting" process during manufacturing, and "LC30" is designed to take into consideration the efficiency of such "slimming".
It is expected that smartphones and tablet PCs will become
higher-precision and higher-resolution products and that LCD panels with a
resolution of 500ppi will be available on the market in a few years. AvanStrate's "LC30" is a suitable product that can contribute to the acceleration of the
development of such high-resolution LCD panels.
【Contact information】
AvanStrate Inc.
Sales
Department - Contact: Manabu Otsuka
Tel:
+81-3-5780-8484 Fax:
+81-3-5780-7635
e-mail:
[email protected]
URL: http://www.avanstrate.com
Shinagawa Place 2F, 1-8-40, Konan,
Minato-ku, Tokyo 108-0075, Japan
