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Integrated touch and display driver IC targets PMOLEDs

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By eeNews Europe

The SSD7317 adopts a proprietary time multiplexing approach for display driving and in-cell touch detection, enabling touch detection on traditional PMOLED display module with no modifications needed on the existing display module structure. Unlike traditional out-cell touch solutions (with separate display and touch ICs) which need a dedicated ITO layer for touch sensor, the SSD7317 eliminates a touch ITO layer and a PET substrate layer, as well as a bottom Optically Clear Adhesive (OCA), and hence substantially reduces total OLED panel cost and thickness, supporting lighter and thinner form factors.

The thinner stack-up of the PMOLED TDDI module enhances light transmittance and further improves the display quality of the panel, which is already characterized by high brightness, high contrast ratio and wide viewing angle. The SSD7317 supports up to 4 key zones for touch detection, gesture identification (single tap, double tap, long tap and slide gestures (up/down and left/right)), glove operation and wet-finger operation. It also enables no false touch operating with water spray and 2cc water drop. SSD7317 samples are now available.

Solomon Systech – www.solomon-systech.com


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