Device and method for inspecting optical modulator

The present invention relates to an apparatus and method for checking whether or not the normal operation in the light modulator chip state. Converting the input control signals to the drive signal, and in contact with each driving signal input pad of the light modulator provides the drive signal probe card - wherein the optical modulator is at least one connected respectively to the one or more micromirror and the micromirror the micromirror moved up and down by a driving signal input through the driving signal input pad, and including the drive signal input pad; And generating the control signal for identifying whether the malfunction of the optical modulator, and is electrically connected to the probe card inspection device is an optical modulator and a test method including a video control circuit for transmitting the control signals. Preventing the packaging of the optical modulator (packaging), the following process as defective light modulator of manufacturing such a display device delivery can greatly reduce the production cost. Light modulator, the inspection, the probe, the normal operation