Is the material of mobile phone screen precious metal?

The screen is liquid crystal and consists of glass and a liquid. Most of the buttons are made of new materials, and the shell is made of new materials, aluminum alloy and stainless steel. Precious metals are mainly on the surface of circuit boards with little content.

The screen is an external component, the most intuitive experience, and the quality of the screen directly affects the visual experience. There are organic light-emitting diode screens and liquid crystal screens on the market. The sensor will sense the change of light and adjust the brightness of the screen.

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Mobile phone maintenance:

1. Avoid touching the metal sheet of the SIM card. Any scratch or damage will make the SIM card unreadable.

2. Never put the mobile phone at the outlet of cold air, because the water vapor condensed on the mobile phone will corrode the machine board invisibly.

3, the charging time should be sufficient, generally 8 hours is enough, if overcharged, the battery life will be shortened.

Remember, if you don't need the mobile phone antenna, please don't pull it out or play like a toy, so as not to affect the reception.

In order to prevent the mobile phone from accidentally getting wet, wearing waterproof bags and capsules can play a protective role. ?