Method for Driving High-pixel-density Displays

Abstract

Universal high-pixel-density displays were introduced to consumers in 2012, including 8K and even 16K displays. Therefore, we propose a new method to design gate driver circuits and micro-scale device mass transfer-printing technologies in order to solve problems related to display border space and electron mobility. In this paper, the conceptual design is composed of mass transfer-printing technologies and a GOA driving circuit. We design a bidirectional low-leakage-current scan circuit that includes a crystalline substrate to provide higher performance and a smaller device (smaller than thin-film amorphous or polycrystalline silicon). We then use the mass transfer-printing technologies to transfer microscale chips onto the glass substrate. Next, we transfer our microscale chip onto the effective area of a panel, and the microscale chip provides gate drive signals for the display. The border becomes slimmer or even disappears. These types of displays are applied in large-screen video monitors, flexible displays, high-pixel-density displays, etc.Our chips were fabricated using the TSMC 180-nm CMOS process; a single chip can include 864 dual-side pins, and has lateral dimensions of 8286 μm × 21 μm.