Abstract: A cell test method for a liquid crystal display panel includes the following steps. A waveform sequence to shorting bars is provided, wherein the waveform sequence includes that the first gate line sends a voltage of “turn on” signal and the second and third gate lines send a voltage of “turn off” signal at the first and second time periods; and the waveform sequence further comprises that the first and second data lines respectively send first and second voltages at the first and second time periods, the first threshold voltage is higher than the first voltage, the first voltage is higher than the common voltage, the common voltage is higher than the second voltage, and the second voltage is higher than the second threshold voltage, whereby pixels defined by the first gate line and the first and second data lines is turn on.

Abstract: A testing circuit of a dual gate cell panel and a color display method of the dual gate cell panel. There are many data lines and scan lines in the dual gate cell panel, and the data lines are divided into three groups, and the scan lines are divided into two groups. The data lines or scan lines of each group are connected respectively to metal wires with a test pad each. When an appropriate signal is inputted to each test pad, the dual gate cell panel shows red, green and blue colors individually, so that defects of the dual gate cell panel can be detected accurately to avoid any unnecessary waste on the defective dual gate cell panel incurred in the subsequent manufacturing processes.

Abstract: A cell test method for a liquid crystal display panel includes the following steps. A waveform sequence to shorting bars is provided, wherein the waveform sequence includes that the first gate line sends a voltage of “turn on” signal and the second and third gate lines send a voltage of “turn off” signal at the first and second time periods; and the waveform sequence further comprises that the first and second data lines respectively send first and second voltages at the first and second time periods, the first threshold voltage is higher than the first voltage, the first voltage is higher than the common voltage, the common voltage is higher than the second voltage, and the second voltage is higher than the second threshold voltage, whereby pixels defined by the first gate line and the first and second data lines is turn on.

Abstract: A testing circuit of a dual gate cell panel and a color display method of the dual gate cell panel. There are many data lines and scan lines in the dual gate cell panel, and the data lines are divided into three groups, and the scan lines are divided into two groups. The data lines or scan lines of each group are connected respectively to metal wires with a test pad each. When an appropriate signal is inputted to each test pad, the dual gate cell panel shows red, green and blue colors individually, so that defects of the dual gate cell panel can be detected accurately to avoid any unnecessary waste on the defective dual gate cell panel incurred in the subsequent manufacturing processes.