Extending screen mobile phone with solar power supply function

Abstract

The invention discloses an expanding screen mobile telephone with the solar power function. The inside of the mobile telephone comprises a battery and a controller. The mobile telephone is provided with an expanding screen interface to connect an external expanding screen. The expanding screen is provided with a solar rechargeable battery inside. A voltage output terminal of the solar rechargeable battery is connected with a power supply terminal of an internal circuit of the expanding screen through a switch circuit on the one hand and is connected with a power supply terminal of an internal circuit of the mobile telephone through the expanding screen interface on the other hand; the on-off state of the switch circuit is controlled by an on-off control signal generated by the controller. When the mobile telephone is in low battery because the user uses the expanding screen to browse the video information, the solar rechargeable battery supplies the working power to both the mobile telephone and the expanding screen so as to keep the normal operation of the mobile telephone, thereby effectively prolonging the running time of the mobile telephone which is switched and solving the problems of the short running time of the mobile telephone caused by the great electric power consumption and the inconvenient charge when the user goes out.

Description

technical field [0001] The invention belongs to the technical field of mobile communication equipment, and in particular relates to a mobile phone with an expandable display screen, and more specifically relates to a solar power supply technology applied to the mobile phone with an expandable screen. Background technique [0002] The development of mobile technology is changing rapidly, and people's dependence on it is also increasing day by day. The cellular mobile communication device not only brings flexibility and convenience in use to users, but also brings great wealth to people. Over the past ten years, the average annual growth rate of cellular mobile users in the world has exceeded 40%, and the annual growth rate of mobile users in my country has exceeded 200%. The 21st century is the information age, the Internet has produced explosive development in the world, data transmission will soon exceed voice digital communication, and multimedia integrated business servi...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of short start-up time and inconvenient recharging when the mobile phone with extended screen uses its internal battery for power supply, the present invention provides a mobile phone with extended screen with solar power supply function. When the power is low, it can replenish the power of the mobile phone to maintain the normal work of the mobile phone, thereby prolonging the working time of the extended screen mobile phone and making it convenient for users to go out

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