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Vibration generating device and display apparatus including the same

A technology for vibration generating devices and equipment, which is applied in identification devices, computer monitor casings, transducers of piezoelectric-electric polymers, etc., and can solve problems such as damage to piezoelectric elements and low reliability of sound reproduction.

Active Publication Date: 2021-10-01
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Since the piezoelectric element has fragile characteristics, the piezoelectric element is easily damaged due to external impact, and thus, there is a problem that the reliability of sound reproduction is low

Method used

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  • Vibration generating device and display apparatus including the same
  • Vibration generating device and display apparatus including the same
  • Vibration generating device and display apparatus including the same

Examples

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Embodiment Construction

[0123] Reference will now be made in detail to embodiments of the present disclosure, examples of which may be illustrated in the accompanying drawings. In the following description, when it is determined that a detailed description of a known function or configuration related to this document unnecessarily obscures the gist of the inventive concept, its detailed description will be omitted. The progression of process steps and / or operations described is an example; however, the sequence of steps and / or operations is not limited to the order set forth herein and may be changed as known in the art, except that the steps and / or operations must be in a specific order. out of sequence. Like reference numerals refer to like elements throughout. The names of corresponding elements used in the following description are selected only for the convenience of writing the description, and thus may be different from those used in actual products.

[0124] The advantages and features of t...

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PUM

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Abstract

The present invention relates to a vibration generating device and display apparatus including the same. The display apparatus includes a display panel displaying an image and a vibration generating device disposed on a rear surface of the display panel to vibrate the display panel. The vibration generating device includes a piezoelectric structure including a first region and a second region, the first region has a vibration characteristic of a first frequency, and the second region has a vibration characteristic of a second frequency which differs from the first frequency.

Description

technical field [0001] The present disclosure relates to a vibration generating device for realizing multiple functions and a display device including the vibration generating device. Background technique [0002] Recently, with the increase in the degree of integration of electronic devices and the development of advanced technologies, various functions are installed in the electronic devices. [0003] For example, various functions such as a display function, an image sensing function, a tactile function, and a sound output function can be installed in a portable electronic device (for example, a cellular phone) including a display device, and piezoelectric elements can be used for image sensing measurement function, tactile function and sound output function. [0004] In the related art, since devices for performing each function are independently equipped in the electronic device, it is very difficult to miniaturize and slim the electronic device. [0005] For example,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R17/00H04R17/10G09F9/00G09F27/00
CPCH04R17/005H04R17/10G09F9/00G09F27/00H04R2217/00H04R7/045H04R17/00H04R2499/15H10N30/50H10N30/04H10K59/00G06F1/1605G06F3/16G10K9/122
Inventor 高有善咸龙洙李用雨
Owner LG DISPLAY CO LTD