Two BLU LED drivers target mid-range UHD TVs

Two LED driver ICs by MagnaChip are one- and two-channel ICs, developed for the UHD TV back light unit (BLU) and have been developed for mid-range UHD TVs. Every LED display panel requires a BLU LED driver IC which is a power semiconductor device that delivers consistent lighting across the LED display panel, explains MagnaChip. It enables the BLU to adjust ambient light settings and generate a consistent image quality.

The one- and two-channel products feature high contrast ratio and improved power efficiency, claims MagnaChip, because they combine analogue and pulse width modulation (PWM) dimming technologies. Dimming enables LEDs to vary intensity in order to suit the image characteristics and is crucial in achieving stable brightness adjustment.

The new BLU LED driver ICs also have short circuit protection, under-voltage lockout, over-duty protection, current sense resistor short protection and drain source short protection to protect the main circuit by supplying consistent power and preventing a short circuit even under varying electrical flow conditions.

According to market research analyst, Omdia, UHD TV display panel shipments are expected to reach 160 million units in 2020, or just over half (57 per cent) of the whole TV panel market. They are expected to grow to 195 million units by 2025, taking 69 per cent of the TV panel market.

The latest one- and two-channel devices join MagnaChip’s three-channel BLU LED drivers for premium UHD TVs. The latest introudctions are designed to address the growing mid-range TV market.

MagnaChip Semiconductor designs and manufactures analogue and mixed signal semiconductor platform solutions for communications, IoT, consumer, industrial and automotive applications. It provides a range of standard products to customers worldwide and has a history of more than 40 years and a portfolio of approximately 1,200 registered patents and pending applications, coupled with engineering, design and manufacturing process expertise.   

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