Liquid crystal display module group and voltage adjusting method thereof

Abstract

The embodiment of the invention discloses a liquid crystal display module group and a voltage adjusting method thereof. The liquid crystal display module group is composed of a liquid crystal panel, a liquid crystal driver circuit, a flexible printed circuit board (FPC) and a temperature sensor. The FPC is connected with the liquid crystal driver circuit and an external controller or is connected with the liquid crystal panel and the liquid crystal driver circuit. The temperature sensor is placed on the FPC and is used for detecting an environment temperature value in real time and outputting the detected environment temperature value to the liquid crystal driver circuit. The liquid crystal driver circuit is used for carrying out real-time adjustment of a voltage outputted to the liquid crystal panel according to a current detected environment temperature value. According to the embodiment of the invention, because of the temperature sensor arranged on the FPC, various interferences on the liquid crystal driver circuit can be avoided; the detected temperature value is closer to the actual temperature of the liquid crystal panel; and thus accuracy of adjustment of various voltage values by the liquid crystal driver circuit according to the temperature value can be improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a liquid crystal display module and a voltage adjustment method thereof. Background technique [0002] A flat panel display widely used in the market is a liquid crystal display (LCD). The liquid crystal display includes a liquid crystal panel and a liquid crystal driving circuit. Various driving voltages required for the operation of the liquid crystal panel are provided by the liquid crystal driving circuit. [0003] The parameters of many devices in the liquid crystal panel are related to the temperature, for example, the on / off voltage of the thin film transistor (ThinFilm Transistor, TFT), the equivalent capacitance of the liquid crystal, etc. are closely related to the temperature. In order for the liquid crystal panel to work normally, the various voltages output from the liquid crystal drive circuit to the liquid crystal panel need to change as the ambient temperature ch...

AI Technical Summary

Problems solved by technology

However, due to the heat generated by various devices in the liquid crystal drive circuit, the temperature detected by the temperature sensor built in the liquid crystal drive circuit is higher than the actual temperature of the environment where the liquid crystal panel is located, resulting in inaccurate adjustment of the voltage value

In addition, various electrical signals inside the liquid crystal drive circuit will interfere with the measurement of the temperature sensor, affect the detection result of the temperature sensor, and further aggravate the error in adjusting the voltage value

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