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MONOLITHIC FULL-COLOR LED MICRO-DISPLAY ON AN ACTIVE MATRIX PANEL MANUFACTURED USING FLIP-CHIP TECHNOLOGY
MONOLITHIC FULL-COLOR LED MICRO-DISPLAY ON AN ACTIVE MATRIX PANEL MANUFACTURED USING FLIP-CHIP TECHNOLOGY
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机译:运用倒装芯片技术制造的有源矩阵面板上的全彩LED微显示
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摘要
A high-resolution, Active Matrix (AM) programmed monolithic Light Emitting Diode (LED) micro-array is fabricated using flip-chip technology. The fabrication process includes fabrications of an LED micro-array and an AM panel, and combining the resulting LED micro-array and AM panel using the flip-chip technology. The LED micro-array is grown and fabricated on a sapphire substrate and the AM panel can be fabricated using PMOS process, NMOS process, or CMOS process. LED pixels in a same row share a common N-bus line that is connected to the ground of AM panel while p-electrodes of the LED pixels are electrically separated such that each p-electrode is independently connected to an output of drive circuits mounted on the AM panel. The LED micro-array is flip-chip bonded to the AM panel so that the AM panel controls the LED pixels individually and the LED pixels exhibit excellent emission uniformity. According to this constitution, incompatibility between the LED process and the PMOS/NMOS/CMOS process can be eliminated.
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