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    • 3. 发明申请
    • Circuit Board Structure and Manufacturing Method Thereof and Liquid Crystal Display Containing the Same
    • 电路板结构及其制造方法及含有其的液晶显示器
    • US20100163286A1
    • 2010-07-01
    • US12500794
    • 2009-07-10
    • Chien-Cheng Chang
    • Chien-Cheng Chang
    • H05K1/09H05K1/00H05K3/02
    • H05K1/0271H05K1/117H05K3/361H05K2201/09036H05K2201/09781H05K2203/0278Y10T29/49155
    • A circuit board structure and a manufacturing method thereof and a liquid crystal display (LCD) containing the same are disclosed. The circuit board structure comprises a flexible printed circuit board (FPC) and a printed circuit board. On a first surface of the printed circuit board opposite to a connection area (such as a gold fingers area) thereof for connecting to the FPC, dummy circuits are formed for maintaining uniform stress when the printed circuit board and the FPC are press-bonded. In the manufacturing method, an electrically-conductive layer is first formed on the first surface of the printed circuit board, and then first grooves and second grooves are formed on the electrically-conductive layer simultaneously, thereby forming real circuits and dummy circuits, wherein the depths of the first grooves and the second grooves are about the same, and the thicknesses of the dummy circuits and the real circuits are about the same.
    • 公开了一种电路板结构及其制造方法和包含该电路板结构的液晶显示器(LCD)。 电路板结构包括柔性印刷电路板(FPC)和印刷电路板。 在印刷电路板的与连接到FPC的连接区域(例如金指区域)相对的第一表面上,形成用于在印刷电路板和FPC被压接时保持均匀的应力的虚拟电路。 在制造方法中,首先在印刷电路板的第一表面上形成导电层,然后同时在导电层上形成第一槽和第二槽,从而形成实际电路和虚拟电路,其中, 第一凹槽和第二凹槽的深度大致相同,并且虚拟电路和实际电路的厚度大致相同。