Compared with the traditional paper price tag, the epaper display tag plays a more important role in enhancing the user's sense of use. Because the digital shelf tag has the uniform appearance and the specification, the consumer is clear at a glance more beautiful neat; The stronger electronic price tag will not be removed from the shelves like the paper price tag, avoiding the trouble that the product cannot be one-to-one corresponding due to the price tag; Some consumers believe that digital characters on electronic price tags are easier to distinguish, and the improved visual Angle eliminates the need for customers to constantly bend over to read the price tags.