18486914. UNDER-DISPLAY ULTRASONIC FINGERPRINT SENSORS FOR FOLDABLE DISPLAYS simplified abstract (QUALCOMM Incorporated)

UNDER-DISPLAY ULTRASONIC FINGERPRINT SENSORS FOR FOLDABLE DISPLAYS

Organization Name

QUALCOMM Incorporated

Inventor(s)

Shiang-Chi Lin of Taoyuan City (TW)

Hrishikesh Vijaykumar Panchawagh of Cupertino CA (US)

Jessica Liu Strohmann of Cupertino CA (US)

Yipeng Lu of Moraga CA (US)

Chin-Jen Tseng of Fremont CA (US)

Kostadin Dimitrov Djordjev of Los Gatos CA (US)

Min-Lun Yang of Miaoli County (TW)

Chia-Wei Yang of Hsinchu (TW)

UNDER-DISPLAY ULTRASONIC FINGERPRINT SENSORS FOR FOLDABLE DISPLAYS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18486914 titled 'UNDER-DISPLAY ULTRASONIC FINGERPRINT SENSORS FOR FOLDABLE DISPLAYS

Simplified Explanation

The patent application describes an apparatus that includes an ultrasonic sensor stack, a foldable display stack, and a transmission enhancement layer. The foldable display stack consists of a display stiffener and display stack layers, which form one or more display stack resonators. These resonators are designed to enhance ultrasonic waves transmitted by the ultrasonic sensor stack in a specific frequency range. The transmission enhancement resonator may include the display stiffener and the transmission enhancement layer, and in some cases, it may also include a portion of the ultrasonic sensor stack.

• The apparatus includes an ultrasonic sensor stack, a foldable display stack, and a transmission enhancement layer.
• The foldable display stack consists of a display stiffener and display stack layers.
• The display stack layers form one or more display stack resonators.
• The resonators are configured to enhance ultrasonic waves transmitted by the ultrasonic sensor stack in a specific frequency range.
• The transmission enhancement resonator may include the display stiffener and the transmission enhancement layer.
• In some cases, the transmission enhancement resonator may also include a portion of the ultrasonic sensor stack.
• The purpose of the invention is to improve the transmission of ultrasonic waves in a specific frequency range.

Potential Applications:

• Mobile devices with foldable displays that utilize ultrasonic sensors for various functions.
• Medical devices that require precise ultrasonic sensing and display capabilities.
• Industrial applications where ultrasonic sensing and display integration is needed.

Problems Solved:

• Enhances the transmission of ultrasonic waves in a specific frequency range.
• Improves the performance and accuracy of ultrasonic sensing in devices with foldable displays.

Benefits:

• Improved functionality and accuracy of ultrasonic sensing in devices with foldable displays.
• Enhanced user experience through better performance of ultrasonic sensing technology.
• Enables the integration of ultrasonic sensing and display capabilities in a single device.

Original Abstract Submitted

An apparatus may include an ultrasonic sensor stack, a foldable display stack and a transmission enhancement layer. The foldable display stack may include a display stiffener and display stack layers. The display stack layers may form one or more display stack resonators configured to enhance ultrasonic waves transmitted by the ultrasonic sensor stack in a first ultrasonic frequency range. In some implementations, a transmission enhancement resonator may include the display stiffener and the transmission enhancement layer. In some examples, the transmission enhancement resonator may include at least a portion of the ultrasonic sensor stack. The transmission enhancement resonator may be configured to enhance the ultrasonic waves transmitted by the ultrasonic sensor stack in the first ultrasonic frequency range.