In modern electronic pianos, the LCD or OLED display plays a very critical role. By displaying piano settings, timbre, rhythm and other information, it helps the player to control the music, making the music performance more smooth and exciting.

First, the display can show the settings and functions of the piano, such as volume, tone, beat, rhythm, etc. Piano has many types of timbres, such as piano, organ, guitar, etc., which can be set through the display. Through the display screen, the pianist can easily choose different timbres in different scenes, making the music more suitable for the taste of the audience.

Secondly, the display screen can help the player grasp the rhythm and speed of the piece. Through the display screen, the player can quickly understand the rhythm, speed, note and other information of the piece, and complete the playing of the piece according to this information. If there is no display, the player may need to spend more time getting familiar with the rhythm and speed of the piece.

In addition, the display can optimize the learning effect during the learning process. Some pianos are equipped with performance templates or learning functions that allow students to learn pieces along with the display. Students can observe the display screen and play music according to the above information. This process can not only improve students' learning efficiency, but also better control the performance of music.

Beyond that, there are many more uses for an LCD or OLED display in an electronic instrument piano. For example, the partition of the piano can be displayed, so that the player can better manage and control different timbres. And the display screen can also display the player's comments on the music, such as information such as ratings and ratings.

Overall, the LCD or OLED display can help the player to control the performance of the music more effectively. By displaying information such as piano settings, timbre, rhythm, etc., the player can better grasp the music and present it to the audience . All these make electronic pianos and LCD or OLED displays an indispensable part in the field of music teaching and entertainment in modern society.