Display panel, display panel temperature detection method and display device

Abstract

The invention discloses a display panel, a temperature detection method for the display panel and a display device. The display panel comprises a first substrate and a second substrate arranged opposite to each other, and a display device layer, a liquid crystal capacitor, a display device layer, a liquid crystal capacitor, a The detection module, the liquid crystal capacitor includes: a first conductive electrode, a second conductive electrode and a liquid crystal layer which are arranged on the first substrate and are insulated from each other. The dielectric constant of the liquid crystal layer changes according to the ambient temperature. The first conductive layer and the second conductive layer The capacitance value between them is determined according to the dielectric constant of the liquid crystal layer, and the detection module is used to obtain the capacitance value. Through the detection module, the capacitance value between the first conductive electrode and the second conductive electrode can be accurately obtained, and then the dielectric constant of the liquid crystal layer can be obtained according to the corresponding relationship between the capacitance value and the dielectric constant of the liquid crystal layer. The temperature of the liquid crystal layer is determined by the dielectric constant of , and the temperature of the liquid crystal layer between the first substrate and the second substrate is directly measured, and the measurement is more direct and accurate.

Description

technical field [0001] The invention belongs to the technical field of electronic products, and in particular relates to a display panel, a temperature detection method of the display panel and a display device. Background technique [0002] For liquid crystal displays, there is a need for temperature compensation at high temperatures and a need for heating at low temperatures. On the liquid crystal display panel, a thermal element is usually additionally used for temperature detection, and the thermal element is placed outside the liquid crystal box, so the temperature inside the box cannot be accurately monitored. Because low temperature mainly affects the relative characteristics of liquid crystal, thin film transistor, etc. in the cell, which affects the display effect, it is more necessary to accurately measure the temperature inside the liquid crystal cell, and the thermal element needs to be attached separately, which has a complex structure and high cost. [0003] T...

AI Technical Summary

Problems solved by technology

On the liquid crystal display panel, a thermal sensor is usually used for temperature detection, and the thermal sensor is placed outside the liquid crystal box, so the temperature inside the box cannot be accurately monitored.

Because the low temperature mainly affects the relevant characteristics of the liquid crystal and thin film transistors in the cell, thereby affecting the display effect, it is more necessary to accurately measure the temperature inside the liquid crystal cell, and the heat-sensitive element needs to be bonded separately, the structure is complicated and the cost is high

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