Advantest extends the capabilities of the T6391 display driver tester with a new digitizer and comparator per pin (HP LCD)

Advantest extends the capabilities of the T6391 display driver tester with a new digitizer and comparator per pin (HP LCD)

Advantest America, Inc.

Advantest America, Inc.

New module enables T6391 to meet high-precision measurement and high-voltage test demands for emerging display driver ICs

TOKYO, Nov. 22, 2022 (GLOBE NEWSWIRE) — Leading semiconductor test equipment provider Advantest Corporation (TSE: 6857) today announced its new HP (High Performance) LCD Digitizer and Comparator Module per Pin . Developed for use with the T6391 display driver test system, the HP LCD module features two key performance enhancements. First, it improves measurement accuracy 5x over the previous module, making it well suited to meet advanced display driver integrated circuit (DDIC) testing requirements for high-end smartphones and reality applications. augmented/virtual (AR/VR). Second, it can handle high-voltage testing up to ±40V, allowing the module to meet the high-reliability test requirements of newer automotive DDICs.

Display panels used in devices such as OLEDs for smartphones and AR/VR glasses require very high dimming. In turn, the DDICs of these displays must subdivide the output voltage into finer and narrower steps, so high-precision voltage measurement is required to test them. The higher the gradation, the more accurate the voltage measurement needs to be.

Meanwhile, DDICs for the automotive market typically contain separate chips for source and gate drivers and timing and touch controllers. Now that these functions will all be integrated into a single chip, the demand for a tester capable of testing all device functionality in a single insertion is increasing rapidly.

“These are exciting times for the display market and, by extension, the test industry,” said Toshiaki Adachi, Advantest’s senior vice president, SoC Test Business Unit. “As the market for metaverse devices grows, the adoption of OLED display panels is expected to grow, while the shift to electric vehicles requires automotive displays that centralize cockpit clusters, infotainment and other display functions. All of these technological developments place new and stricter requirements on test and measurement. Our T6391 tester and new HP LCD module will lead the way in meeting these demands.

The HP LCD module provides noise reduction and uniform measurement accuracy between test system channels to enable high-accuracy measurement. It covers the test requirements of new advanced DDICs for high-end smartphones and AR/VR applications, enabling the tester to support high-gradation testing with ±200mV measurement accuracy. Additionally, by supporting high voltage testing up to ±40V with certain loads, the module enables functional testing of automotive DDICs that mirrors their actual operations.

The HP LCD T6391 module is highly compatible with existing modules, allowing quick and easy integration with the customer’s test setup. Currently being evaluated with a leading display IC vendor, the new module is expected to be available for purchase by customers in Q2 2023. Learn more about the HP LCD Module and full line of Advantest’s test and measurement offerings, please visit the company at booth 1549 during SEMICON Japan 2022, December 14-16, Tokyo Big Sight.

About Advantest Corporation
Advantest (TSE: 6857) is the leading manufacturer of automatic test and measurement equipment used in the design and production of semiconductors for applications such as 5G communications, Internet of Things (IoT), vehicles autonomous, high performance computing (HPC), including artificial technologies. intelligence (AI) and machine learning, and more. Its state-of-the-art systems and products are integrated into the world’s most advanced semiconductor production lines. The company also conducts R&D activities to address emerging testing challenges and applications; develops advanced test interface solutions for wafer sorting and final testing; produces scanning electron microscopes essential for the manufacture of photomasks; and offers system-level test solutions and other test-related accessories. Founded in Tokyo in 1954, Advantest is a global company with facilities around the world and an international commitment to sustainable practices and social responsibility. More information is available at

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Cassandra Koenig

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