Liquid crystal display device and temperature control method thereof

A liquid crystal display device, having a display area and a non-display area, wherein the liquid crystal display device comprises:

• a liquid crystal display module;
• a control module connected to the liquid crystal display module;
• an array substrate connected to the control module;
• a color filter substrate disposed opposite to the array substrate;
• a liquid crystal layer disposed between the array substrate and the color filter substrate;
• wherein the control module comprises:
• a temperature detection unit, the temperature detection unit comprising a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is configured for detecting a temperature of a part of the liquid crystal display module located in the display area, and the temperature of the part of the liquid crystal display module located in the display area is a first temperature;
• the second temperature sensor is configured for detecting a temperature of a part of the liquid crystal display module located in the non-display area, and the temperature of the part of the liquid crystal display module located in the non-display area is a second temperature;
• a temperature adjustment unit configured for adjusting the first temperature and the second temperature, the temperature adjustment unit comprising a heat generating layer disposed on a side surface of the array substrate away from the color filter substrate and connected to the array substrate, wherein in a case that the first temperature is lower than a target temperature threshold, the part of the liquid crystal display module located in the display area is heated until the first temperature reaches the target temperature threshold;
• in a case that the second temperature is lower than the target temperature threshold, the part of the liquid crystal display module located in the non-display area is heated until the second temperature reaches the target temperature threshold;
• and
• a control unit connected to the temperature detection unit and the temperature adjustment unit, and configured for acquiring the first temperature and the second temperature respectively and controlling the temperature adjustment unit;
• and
• wherein the liquid crystal display device further comprises:
• a first index margin erasing layer disposed between the array substrate and the heat generating layer;
• and
• a second index margin erasing layer disposed on a side surface of the heat generating layer away from the color filter substrate;
• and
• the first index margin erasing layer and the second index margin erasing layer are configured to make the heat generating layer more transparent such that a reflectivity of the entire display area is completely consistent with a reflectivity of the heat generating layer.