讀後心得

In the future, smartphone screens may have charging capabilities. Google has recently developed a new technology that hides wireless charging coils beneath the screen. According to patent documents, users can receive or transmit power through the screen without needing to flip the phone. This technology allows smartphones to become mobile power stations, even enabling them to charge other devices like headphones or smartwatches. Although it is still in the early stages of development, this innovative concept opens new possibilities for the future of smartphones.

Can you imagine? In the future, smartphone screens will not only be used for scrolling but also be able to "charge each other"? This is Google's latest innovative technology. According to patent data released by the United States Patent and Trademark Office on March 27, 2025, Google is developing a brand new wireless charging technology that plans to embed "charging coils" directly under the smartphone screen, allowing the screen to also transmit power, and it can even help charge mobile phones or headphones wirelessly through the screen!

This patent is titled "Wireless Charging Through a Display," with application number 18294508. The patent describes that Google plans to hide the wireless charging coil beneath the device screen, achieving the innovative technology of transmitting power through the screen. Traditional wireless charging requires the mobile phone to be closely adhered to the charging pad, making screen operations inconvenient. The concept of this patent allows the smartphone screen to become a medium for receiving or transmitting power, eliminating the need to flip the phone when charging, which enhances convenience and reduces the risk of screen wear.

Smartphones can turn into "mobile power stations"! The smartphone can also charge other devices? Even more surprisingly, this patent mentions two different application scenarios:

• Receiving Mode: Place the smartphone screen down on the wireless charging pad to receive power through the screen without flipping the phone.
• Transfer Mode: Devices with built-in charging coils can actively charge other devices through the screen, such as wireless headphones or smartwatches, and even enable power sharing between different devices.

According to illustrations in the patent, when the device detects a compatible wireless charger, the screen and touch sensors will temporarily disable to enhance the efficiency of power transmission. To achieve this goal, Google has also designed a masking layer structure for the display to balance display quality and charging performance.

Although this technology sounds very promising, like many patents, it is still in the early stages of development. Whether Google will implement this technology in Pixel phones or other smart devices remains to be seen. However, this innovative wireless charging method adds more possibilities for the future development of smartphones and demonstrates potential future directions in technology, where smartphone screens can do more than just display content; they can also receive power and even serve as charging sources for other devices.