Low-temperature starting circuit and low-temperature starting method of display system

Abstract

The invention discloses a low-temperature starting circuit and a low-temperature starting method of a display system. The display system comprises a display screen and a main control circuit. The low-temperature starting circuit comprises a temperature measurement and control circuit, a first temperature rising circuit and a second temperature rising circuit; when the main control circuit is not started, the temperature measurement and control circuit measures the environment temperature of the main control circuit; the environment temperature is compared with an initial temperature threshold value needed by starting of the main control circuit; when the environment temperature is smaller than the initial temperature threshold value, the second temperature rising circuit is controlled to heat the main control circuit; when the environment temperature is equal to or larger than the initial temperature threshold value, the main control circuit is controlled to be started, the main control circuit controls the temperature measurement and control circuit not to work any more, and the main control circuit controls the first temperature rising circuit and the second temperature rising circuit to work or not to work and the display screen to be started or not to be started. According to the low-temperature starting circuit provided by the invention, the temperature measurement and control circuit, the main control circuit and the display screen are started step by step in a low-temperature environment, so that the problem that a display system cannot be normally started in the low-temperature environment is effectively solved.

Description

technical field [0001] The invention relates to the field of display systems, in particular to a low-temperature start-up circuit and a low-temperature start-up method for a display system. Background technique [0002] At present, electronic products with display functions on the market need to start working and display normally at low temperatures in many cases, and the operating temperature of some electronic devices is required to be lower than minus 40 degrees. However, in a low-temperature environment, due to the limitation of the physical characteristics of the material itself, the response time of the liquid crystal display becomes longer, and the image will be seriously smeared and cannot be displayed normally. [0003] At present, there are two main ideas to solve the above problems: one is to develop materials that are more resistant to low temperature, but this solution requires a long period of time, and it is difficult to achieve a breakthrough in the short ter...

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Problems solved by technology

[0004] In view of this, an embodiment of the present invention provides a low-temperature start-up circuit and a low-temperature start-up method for a display system to solve the technical problem that electronic products with display functions on the market cannot start and work normally in a low-temperature environment

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