Hybrid fabrication of LED matrix display on multilayer flexible printed circuit board
Thanh Huy Phung, Jaehyeong Jeong, Anton Nailevich Gafurov, Inyoung Kim, Sung Yong Kim, Hak-Jun Chung, Yoonkap Kim, Han‐Jung Kim, Kyoung Min Kim, Taik‐Min Lee
Abstract
Abstract This study presents a hybrid fabrication process for LED matrix on flexible multilayer printed circuit boards (PCBs). To prepare for the flexible PCB, a roll-to-roll screen printing process was developed to create a core circuit board by printing on both sides of the flexible substrate. From the core PCB, the lamination and etching processes are then used to form four layers in total. By using the proposed method, we successfully implemented the passive LED matrix display. This approach could be used for other applications that require flexible and multilayer circuits.
Topics & Concepts
Printed circuit boardLaminationFabricationScreen printingEtching (microfabrication)Materials scienceMatrix (chemical analysis)Flexible electronicsFlexible displayCore (optical fiber)Process (computing)Dot matrixOptoelectronicsElectronic engineeringElectrical engineeringEngineeringComputer scienceNanotechnologyThin-film transistorLayer (electronics)Composite materialComputer graphics (images)Alternative medicinePathologyOperating systemMedicineNanomaterials and Printing TechnologiesAdvanced Sensor and Energy Harvesting MaterialsAdditive Manufacturing and 3D Printing Technologies