LED起源于上世纪70年代，最初仅仅是用作文字和数字的显示，随着社会的

LED originated in the 1970s, was originally used merely as alphanumeric display, with the increasing advances in the development of society and technology, LED screen gradually become a text, image, video, video signals to a display for equipment and other kinds of information. Nowadays, LED has been widely used in automotive, manufacturing, industry, communications industry, consumer goods industries, it has been able to rage, it has a direct relationship to their advantage. Is well known, LED is a high safety, stable performance, smaller power consumption, long life cycle, higher brightness electronic device. Compared with the past, today's higher LED luminous density, ability to adapt to different scenarios of stronger, higher luminous uniformity, more stable and reliable, thanks to the use of static scanning technology in the LED to a large extent . Admittedly, the many advantages of LED, full brightness, but it is not a perfect device, there are also some shortcomings, for example: Although the LED able to resist rain and snow, but it will seriously affect people's visual effects, if people remain near LED screen from viewing the content is extremely susceptible to symptoms of vertigo. Therefore, in the future development, LED screen manufacturers should be improved for its shortcomings, rather than to seek high brightness.

LED originated in the 1970s, initially only used as a display of words and numbers, with the continuous development of society and technological progress, LED screen has gradually become a device to display text, images, video, video signals and other information. Today, LED has been widely used in automotive, manufacturing, industry, communications, consumer goods industry and other fields, it is able to become popular around the world, with its advantages have a direct relationship. As we all know, LED is a high security, stable performance, low energy consumption, long service life, high brightness of electronic devices. Compared with the past, today's LED luminous density is higher, more adaptable to different scenes, higher luminous uniformity, more stable and reliable, thanks in large part to the application of static scanning technology in LEDs. Undeniably, LED advantages, brightness, but it is not a perfect device, there are also some shortcomings, for example: LED can withstand rain and snow, but will seriously affect people's visual effects, if people keep up close to watch the content steam LED screen, extremely prone to vertigo symptoms. Therefore, in the future development, LED screen manufacturers should be improved for their shortcomings, rather than seeking high brightness.

Led originated in the 1970s, it was only used to display words and numbers. With the continuous development of society and the increasing progress of technology, LED screen has gradually become a kind of device used to display various information such as text, image, video, video signal, etc. Nowadays, LED has been widely used in many fields, such as automobile, manufacturing, industry, communication industry, consumer goods industry and so on. As we all know, LED is a kind of electronic equipment with high security, stable performance, small energy consumption, long service life and high brightness. Compared with the past, today's LED has higher luminous density, stronger adaptability to different scenes, higher luminous uniformity, more stability and reliability, which is largely due to the application of static scanning technology in LED. Admittedly, LED has many advantages and full brightness, but it is not a perfect device. There are also some disadvantages. For example, although LED can resist rain and snow weather, it will seriously affect people's visual effect. If people keep a close view of the content of LED screen, it is extremely prone to vertigo. Therefore, in the future development, the manufacturers of LED screen should improve their shortcomings, rather than blindly seek high brightness.