Implementation and the advantages and disadvantages wide temperature display

Wide temperature display commonly used for cooking is the use of low-temperature heating of the way , but this way there will be a liquid crystal heating outflow phenomenon or restore some difficulties when Aguri course , there are other studies of individual heating key points . Overall, point by point the entire surface heating and heating in two ways. Such displays the overall power consumption will increase 4-6 times . Such as 15-inch  Tsingtek china lcd low temperature lcd display monitor at room temperature (22 ℃) under power is 20ww, power consumption in low-temperature environment (-40 ℃) for :90-120w, this approach is the heating method .

There is another way to achieve wide temperature : increase the brightness of the low temperature lcd display screen . Increase the backlight lamp , through the development of a special high-pressure section ( to produce the starting voltage 2000v-3000v ) in a low temperature environment (-40 ℃) lit backlight lamp , a huge amount of heat generated due to make an LCD backlight lamp warming, which ways to serve two purposes, namely to solve the problem of low temperature liquid crystals , but also solve the problem of the sun visible . In this way referred to brightening way .

Research and application of excessive heat and brightening the way that these two approaches , there are many quality problems : ① Both methods have increased the number of accessories, reduced reliability . ② assembly is too much trouble , likely to cause defects , high defect rate . ③ impact device , the ability to decrease vibration . ④ In the aging test, found in the environment of 50 ℃ aging fast, the acceleration was increased , especially brightening way , the normal life of only 1/ 10 .

To solve these problems , a series of product innovation and technology development . Developed a world- leading lcd graphic display modules technology , high temperature applications , solve the above problem. New products do not need to be heated brightening neither can work properly at low temperatures. The basic principle is as follows : LCD and no freezing at low temperatures (-40 ℃) or send bio- state transition , either heating or otherwise brightening methods are not working , so we thought of using software to correct its electrical properties manner drift . Trying to trigger the liquid crystal at a low temperature work . This requires the driver to adjust the LCD timing and so on. Through a lot of trial and extensive research applications, this technology has been very mature , regardless of how changes in ambient temperature , by widening the trigger timing and match the appropriate driver can ensure the normal operation of the liquid crystal . As this technology has been leading in the world, so sales have doubled every year.