Hangzhou Xuhong Technology Co.,Ltd
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中文
With the rapid development of electric vehicles, charging piles are also increasing, we can see them everywhere in community parking lots, public parking lots and highway service areas, and TFT LCD screen has become an important role in the human-machine interface of charging piles. The LCD screen on the charging pile can display the charging capacity, electricity cost, time required and other important data. We can complete the corresponding charging operation by swiping the card on the human-machine interface. So how to choose the LCD screen for the charging pile, what are the requirements of customized LCD screens?
The TFT LCD screen on the charging pile should be customized according to the actual application situation, generally considering the size, brightness, waterproof, weather conditions, electromagnetic interference and other factors. Typically, there are some customization requirements as below.
l High brightness
Most charging piles are installed outdoors, and the brightness of outdoor displays is definitely higher than that of indoor displays. Usually, we need to choose outdoor sunlight readable LCD screens with minimum brightness of 900 cd/m2 and minimum backlight life of 50,000 hours. The core technology of high-brightness LCD screen is the packaging process of LED backlight and energy consumption efficiency. If the packaging process and energy consumption efficiency are not up to standard, the heat generated during the use of the high brightness LCD screen will be greater, thus affecting the use effect and service life of the screen. When the outdoor environment is hot, plus the heat generated during the use of the LCD screen, the temperature of the whole product is higher. Therefore, the LCD screen needs a heat dissipation technology to reduce the temperature of the backlight and ensure the backlight normal operation, so that the LCD screen can be used normally. Usually we add graphene to the back shell of the outdoor display screen, which can have a good heat absorption and heat dissipation effect. In addition, the use of high quality LED backlight with high energy efficiency, to save energy and reduce heat generation, is also an important solution for the outdoor high brightness LCD screen.
l Wide operating temperature
The outdoor temperature varies greatly due to the different seasons, and the charging pile generates heat during the charging process. Therefore, the TFT LCD screen of outdoor charging pile must be wide operating temperature. Normally the working environment temperature of the charging pile is -20 ° C ~ +50 ° C, and for the choice of LCD screen, the operating temperature should be wider, generally -20 ° C ~ +70 ° C, if the outdoor environment is harsh, you can choose -30 ° C ~ +85 ° C wide temperature LCD screen.
l Others
The working environment of outdoor charging pile is affected by the weather, sometimes exposure in sunshine, sometimes heavy rain and strong winds, so the LCD screen has the needs of waterproof and dustproof, ultraviolet protection, and external impact resistance; In addition, there will be serious electromagnetic interference when the charging pile is working, so the display screen must have a certain degree of anti-electromagnetic interference. Usually, we need to test the electromagnetic compatibility of the product to meet the standard.
The above is a brief introduction to the requirements of customized LCD screens for charging piles. In major cities across the country charging piles are expanding rapidly, and the demand of customized LCD screens is increasing, which will bring huge market demand.
AUO LCD:https://www.auo-lcd.com/products/auo-lcd-screen/
INNOLUX LCD:https://www.auo-lcd.com/products/innolux/
