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1.发明申请公开(公告)号：US20210247655A1
公开(公告)日：2021-08-12
申请号：US17042714
申请日：2020-03-10
发明人： Guojun ZHANG , Li JIANG , Jiong HUANG , Peng LI , Lele HAN , Juncai MA
摘要： A display substrate, a display module and a method for driving the display module, and a display apparatus are provided. The display substrate includes a plurality of pixel units. At least one pixel unit includes: a first sub-pixel; a color-changing layer covering a part of a light-emitting surface of the first sub-pixel, the color-changing layer being able to be switched between a first state and a second state, and the color-changing layer being configured to enable a first wavelength light emitted by the first sub-pixel to pass through the color-changing layer in the first state; and a light-emitting layer located on a side of the color-changing layer that is away from the first sub-pixel, and configured to emit a second wavelength light under excitation of the first wavelength light. The second wavelength light is an invisible light.
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公开(公告)号：US20200245090A1
公开(公告)日：2020-07-30
申请号：US16547069
申请日：2019-08-21
发明人： Guojun ZHANG , Jiong HUANG , Peng LI , Lele HAN , Zhengwei ZHU
摘要： A sound production device, a display system, and a sound production method for a sound production device. The sound production device includes ultrasonic transducers, a sounding control unit, and a motion unit. The ultrasonic transducers can constitute at least one sounding unit, each of the sounding units includes two ultrasonic transducers, and one ultrasonic transducer in each sounding unit emits a first ultrasonic wave, and the other ultrasonic transducer emits a second ultrasonic wave. The sounding control unit is configured to determine a target direction and output a direction command to the motion unit according to the target direction. The motion unit is configured to adjust a sounding direction of each ultrasonic transducer according to the direction command, such that two ultrasonic transducers in each sounding unit emit sound toward the target direction to generate a difference frequency sound wave within an audible frequency range in a target area.
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公开(公告)号：US20190289695A1
公开(公告)日：2019-09-19
申请号：US16128848
申请日：2018-09-12
发明人： Jiong HUANG , Peng LI , Wencheng HU , Lele HAN
IPC分类号： H05B37/02
摘要： A brightness adjustment device and an eye protection lamp are provided. The brightness adjustment device is applied in the eye protection lamp and includes a physical sign detection assembly, configured to obtain heart rate information of a user, and generate and transmit a brightness adjustment signal based on the heart rate information of the user; and a brightness adjustment assembly, connected to the physical sign detection assembly, and configured to adjust brightness of a light emitting device connected to the brightness adjustment assembly based on the brightness adjustment signal.
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