SOUND GENERATOR INCLUDING AN ULTRASOUND UNIT, DISPLAY DEVICE INCLUDING THE SOUND GENERATOR, AND METHOD OF DRIVING DISPLAY DEVICE
A sound generator for a display device, including: a first vibration generation unit having a first electrode and a second electrode; a second vibration generation unit having a third electrode and a fourth electrode; and a vibration layer including: a first sub-vibration layer disposed between the...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
18.11.2021
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Subjects | |
Online Access | Get full text |
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Summary: | A sound generator for a display device, including: a first vibration generation unit having a first electrode and a second electrode; a second vibration generation unit having a third electrode and a fourth electrode; and a vibration layer including: a first sub-vibration layer disposed between the first electrode and the second electrode; and a second sub-vibration layer disposed between the third electrode and the fourth electrode, wherein the first vibration generation unit is configured to contract and expand the first sub-vibration layer based on a first driving voltage applied to the first electrode and a second driving voltage applied to the second electrode, and wherein the second vibration generation unit is configured to contract and expand the second sub-vibration layer based on a third driving voltage applied to the third electrode and a fourth driving voltage applied to the fourth electrode. |
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Bibliography: | Application Number: US202117391009 |