US 12,443,225 B1
External screen device for smartphone
Lingzhong Zhao, Shenzhen (CN); Junhua Wu, Shenzhen (CN); and Zhengping Zhao, Shenzhen (CN)
Assigned to Shenzhen Xinzhengyu Technology Co., Ltd, Shenzhen (CN)
Filed by Shenzhen Xinzhengyu Technology Co., Ltd, Shenzhen (CN)
Filed on Dec. 11, 2024, as Appl. No. 18/977,836.
Int. Cl. G06F 1/16 (2006.01); G06F 1/18 (2006.01)
CPC G06F 1/1626 (2013.01) [G06F 1/1635 (2013.01); G06F 1/184 (2013.01); G06F 2213/0042 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An external screen device for a smartphone, comprising a body, wherein the body comprises:
a casing mounted in the casing;
a circuit board, being provided with a mode button, and the mode button extends out of a side of the body;
a screen covers a side of the casing and is located above the circuit board and electrically connected to the circuit board;
a first connection interface connectable to a data line to realize data signal transmission with the smartphone and supply power to the external screen device;
a second connection interface configured to be connected to an external power source to supply power to the external screen device and the smartphone; and
a third connection interface configured to be connected to a microphone or wired earphones;
wherein the first connection interface, the second connection interface and the third connection interface are all electrically connected to the circuit board.