Patent ID: 8704808

Claim:
A liquid crystal display device, comprising: a controlling chip, disposed on a printed circuit board and comprising an output impedance; two circuit wires, disposed on the printed circuit board, wherein two ends of the first circuit wire are electrically connected to the controlling chip and a midpoint of the second circuit wire, respectively, a characteristic impedance of the first circuit wire is equivalent to the output impedance, and a characteristic impedance of the second circuit wire is two times the output impedance; an impedance element, disposed on the printed circuit board, wherein the impedance element is electrically connected to the second circuit wire and is electrically connected to a grounding end through a capacitor, and an impedance value of the impedance element is four times the output impedance; N wire sets, disposed on a glass substrate and electrically connected in sequence, wherein N is an integer which is greater than 0, the first wire set is electrically connected to two ends of the second circuit wire, the first wire set comprises three peripheral wires, a characteristic impedance of the first peripheral wire in the first wire set is two times the output impedance, characteristic impedances of the second and third peripheral wires in the first wire set are four times the output impedance, and when N is greater than 1, the k-th wire set comprises 3*2 k−2 peripheral wires, characteristic impedances of the peripheral wires in the k-th wire set are 2 k+1 times the output impedance, k is an integer, and 2≦k≦N; and 3*2 N−1 driving chips, disposed on the glass substrate and electrically connected to the N-th wire set, wherein each of the driving chip adjusts an input impedance according to a control information, so as to make the input impedance 2 N+1 times the output impedance.