SEOUL, South Korea and
SAN JOSE, Calif., June 4, 2019 /PRNewswire/ -- MagnaChip
Semiconductor Corporation ("MagnaChip" or the "Company") (NYSE:
MX), a designer and manufacturer of analog and mixed-signal
semiconductor products, announced today it has launched 3-channel
BLU (backlight unit) LED driver for UHD TVs.
For high-resolution UHD displays, this new standard display
product is designed to control the local LED dimming of up to 270
LEDs through a maximum of 90 LEDs per channel. In addition,
it provides a dual dimming solution with Analog and PWM (Pulse
Width Modulation) for efficient and stable LED dimming, which
reduces power consumption and helps achieve a high contrast ratio
in UHD TVs.
Analog dimming, a type of LED dimming technology, adjusts the
brightness of the LED by controlling the amount of current flowing
through the LED in a linear manner. With this solution, the
LED color changes when the current fluctuates. By contrast,
PWM dimming is a method to minimize the color change.
MagnaChip's new 3-channel BLU LED Driver is designed to
selectively use analog or PWM dimming according to the image
signal, thus providing the solution to realize high contrast ratio
and power efficiency.
The BLU LED driver also provides for high current accuracy
within ±1% tolerance by using the average mode of the current
control technology. In addition, this product supports Low
PWM Dimming by operating at 480 kHz High speed Switching Frequency
to elaborately control the current in the dark area of the image
with a narrow pulse width.
Other advantages of MagnaChip's BLU LED driver are that it
provides various circuit protection functions, including
short-circuit protection and under-voltage lockout (UVLO) to attain
high reliability. In addition, this product features
over-duty protection, which keeps the PWM duty ratio (on/off ratio)
constant. It also provides for current-sense resistor short
protection, which prevents over-current from flowing into a
specific area of the circuit. MOSFET drain-source short
protection also detects and protects the shorts of the MOSFETs in
the circuit.
YJ Kim CEO of MagnaChip said, "MagnaChip's 3-channel BLU LED
driver, which features low power and high contrast ratio, will
enhance the product value of high definition UHD TV." He added, "As
the UHD TV market grows rapidly, we will continue to strengthen our
display driver lineup by developing multi-channel BLU LED drivers
that increase the number of channels as well as LED current
accuracy."
About MagnaChip Semiconductor
MagnaChip is a designer and manufacturer of analog and
mixed-signal semiconductor platform solutions for communications,
IoT, consumer, industrial and automotive applications. The
company's Standard Products Group and Foundry Services Group
provide a broad range of standard products and manufacturing
services to customers worldwide. MagnaChip, with about 40
years of operating history, owns a portfolio of approximately 3,000
registered patents and pending applications, and has extensive
engineering, design and manufacturing process expertise. For more
information, please visit www.magnachip.com.
CONTACTS:
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|
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United States
(Investor Relations):
Bruce
Entin
Entin
Consulting
Tel.
+1-408-625-1262
Investor.relations@magnachip.com
|
USA media /
industry analysts:
Mike
Newsom
LouVan
Communications, Inc.
Tel.
+1-617-803-5385
mike@louvanpr.com
|
Korea / Asia
media:
Chankeun
Park
Director of Public
Relations
Tel.
+82-2-6903-5223
chankeun.park@magnachip.com
|
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SOURCE MagnaChip Semiconductor Corporation