System, method and device for controlling liquid crystal dropping

Abstract

The invention relates to the technical field of displaying, and discloses a system, method and device for controlling liquid crystal dropping. Precision of the liquid crystal filling capacity of a liquid crystal display panel is improved, the display quality of a liquid crystal display device is improved, and production efficiency of a product is improved. The system for controlling liquid crystal dropping comprises a liquid crystal dropping machine, a phase analysis device and a control device, the phase analysis device is used for collecting and calculating the current phase difference between ordinary light and extraordinary light which are formed by transmitting liquid crystal drops by incident light and recording the contact time of the liquid crystal drops and the incident light, and the control device is in signal connection with the phase analysis device and the liquid crystal dropping machine and is used for obtaining the volume of the liquid crystal drops according to the contact time of the liquid crystal drops and the incident light and the corresponding relation of the current phase difference and the volume of the liquid crystal drops. The quality of the liquid crystal drops is determined according to the volume of the liquid crystal drops. When the quality of the liquid crystal drops exceeds the allowable quality range of the liquid crystal drops, a dropping stop signal is output, and the liquid crystal dropping machine is controlled to stop dropping.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a liquid crystal infusion control system, method and device. Background technique [0002] The liquid crystal panel is the core component of TFT-LCD (Thin Film Transistor Liquid Crystal Display, Thin Film Transistor Liquid Crystal Display), usually including: a color filter substrate and an array substrate placed in opposite boxes, and liquid crystals filled in the cavity of the opposite box, The liquid crystal filling is usually realized by ODF (One Drop Filling, liquid crystal dripping method). It can be seen that the filling amount of liquid crystal directly affects the cell thickness of the liquid crystal panel, and the cell thickness of the liquid crystal panel is the optical performance and display of TFT-LCD. One of the main factors affecting quality. [0003] In the existing liquid crystal panel manufacturing process, a liquid crystal infusion system for monitoring the ...

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Problems solved by technology

[0005] The defect in the prior art is that the quality of the liquid crystal droplets monitored by the liquid crystal quality monitoring system is the quality of the liquid crystal droplets when the liquid crystal dispensing machine is offline, and is the average value of the sample number of liquid crystal droplets. Therefore, the liquid crystal dripping The liquid crystal filling amount that the system fills to the liquid crystal panel according to the quality of the liquid crystal droplet has low precision, thereby making the display quality of the liquid crystal display device poor; Note that the system needs to stop working and re-monitor the quality of the liquid crystal droplets of the liquid crystal drip injection machine in an offline state, which makes the production efficiency low

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