Detection device and detection method of liquid crystal display panel

Abstract

The invention provides a detection device and a detection method of a liquid crystal display panel. The detection device comprises a detection signal access area, a plurality of panel area detection signal input ends, a plurality of control circuit detection signal input ends and a plurality of panel area detection switch groups; the detection signal access area comprises a plurality of detection signal access ends and a first control signal access end, and the detection signal access ends are multiplexed in a time-division manner; the panel area detection signal input ends are used for transmitting panel area detection signals provided by the detection signal access ends to a panel area in a panel area detection stage; the control circuit detection signal input ends are used for transmitting control circuit detection signals provided by the detection signal access ends to a control circuit in a control circuit detection stage; and the panel area detection switch groups comprise a plurality of first control switches which are used for starting and closing the panel area detection switch groups according to the signals of the first control signal access end. According to the detection device and the detection method of the liquid crystal display panel, the panel area detection stage and the control circuit detection stage can be detected simultaneously.

Description

technical field [0001] The invention relates to a detection device, in particular to a detection device of a liquid crystal display panel and a corresponding detection method. Background technique [0002] FPD (Flat Panel Display Device) technology represented by TFT-LCD (Thin Film Transistor Liquid Crystal Display Panel) has developed rapidly since the 1990s and gradually matured. Because TFT-LCD has the advantages of high definition, low power consumption, light and thin, and easy to carry, it has been widely used in the above information display products and has broad market prospects. [0003] The production process of a liquid crystal panel usually includes: forming a panel area, the panel area includes scanning lines and data lines arranged vertically and intersecting with thin film transistors connected to the scanning lines and data lines; the control circuit shown in the above panel area; and the bonded flexible circuit board. [0004] In the production process of...

AI Technical Summary

Problems solved by technology

However, since the driving signal and waveform of the panel area test are different from the driving signal and waveform of the detection stage after assembly into modules, it is necessary to set up a module stage detection device separately, which increases production costs and reduces production efficiency

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