The early stage of video movement development, which roughly spanned from the late 1990s to the early 2000s, was a period of rudimentary exploration. At that time, the technology was relatively backward, and video movements were mainly used in simple video playback scenarios such as early advertising players. Due to the limitation of hardware level, the screen size of the supporting video movements was relatively small, mostly around 2.4 inches. The resolution was also low, and the picture clarity was far from meeting the later needs. In terms of memory, it was generally only 128MB to 512MB, which could only store a small amount of video files with low code rate. The playback method was relatively single, mainly relying on simple button control, and the functional buttons were only limited to basic operations such as play/pause and power on/off. The stability and compatibility of the movement were also insufficient, and it was prone to problems such as stuck and unable to play normally.

From the mid-2000s to the early 2010s, video movements entered a stage of rapid technical iteration and functional expansion. With the development of integrated circuit technology, the performance of the core chips of the movement was significantly improved, which laid a solid foundation for the expansion of multiple functions. In terms of screen size, there was a breakthrough from the previous single small size, and 4.3-inch and 5-inch screens gradually became the mainstream configurations. These screens had higher resolution and better color reproduction, making the video playback effect significantly improved. The memory capacity also achieved a leap, expanding from the original hundreds of megabytes to 1GB to 8GB, which could store more high-definition video content. More importantly, the playback methods became more diversified. On the basis of button playback, magnetic control playback and light control playback were successively developed and applied. Magnetic control playback realized the start and stop of video playback through the induction of magnetic signals, which was widely used in scenarios such as door - to - door advertising machines; light control playback used photosensitive components to sense changes in ambient light, and automatically triggered playback when the light reached a certain condition, which was more energy - saving and intelligent. At the same time, the functional buttons were also enriched, adding practical operations such as volume increase/decrease, fast forward/rewind, and file selection, which greatly improved the user operation experience.

Since the mid-2010s, video movements have stepped into the stage of intelligence and diversification. Driven by the wave of the Internet of Things and artificial intelligence, video movements are no longer just simple video playback components, but are gradually integrated with intelligent control systems. The screen size has further expanded to meet the needs of different application scenarios. 7 - inch and 10.1 - inch large screens have been widely used in large - size advertising machines, industrial control displays and other equipment. These large screens not only have ultra - high resolution, but also support touch operation in many cases, realizing more interactive functions. In terms of memory, the maximum capacity has been extended to 16GB, and some high - end models also support external memory expansion, which can meet the storage needs of massive video resources. In terms of playback control, it has realized the integration of multiple control methods, and can support remote control, mobile APP control and other ways besides the original magnetic control, light control and button control. The functional buttons are more humanized. According to different application scenarios, customized button combinations can be carried out, such as adding special function buttons such as loop playback and full - screen display, to meet the personalized needs of users. In addition, the stability and energy efficiency of the movement have been further optimized. Through the improvement of chip process and software algorithm, the power consumption of the movement is reduced while ensuring high - performance operation, and the service life is also significantly prolonged.

Looking back at the development history of video movements, every step of progress is closely linked with the innovation of electronic technology and the change of market demand. From small screens to large screens, from small memory to large capacity, from single playback to multiple control, video movements have been continuously breaking through the technical bottleneck. In the future, with the development of technologies such as 5G, ultra - high definition video and intelligent sensing, video movements will surely move towards a more intelligent, high - definition and integrated direction, and play a more important role in more emerging fields, bringing more possibilities to the development of related industries.