Screen directional sound production device and preparation method thereof
A sound-generating device and screen technology, which is applied in frequency/direction characteristic devices, microphones, electrostatic transducer speakers, etc., can solve problems that affect the appearance and life of the overall device, easily generate gaps, increase thickness, etc., and achieve thinning screen orientation The effect of the generating device
Active Publication Date: 2022-03-04
HEFEI BOE OPTOELECTRONICS TECH +1
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Problems solved by technology
[0003] At present, when the directional audio transmission technology is applied to the reflective liquid crystal display, the main way is to hang the directional audio transmission device (ultrasonic transducer) on the reflective liquid crystal display, which leads to the difference between the directional audio transmission device and the reflective liquid crystal display. The thickness of the overall device composed of the display screen is increased, and gaps are likely to be formed between the two, which affects the appearance and life of the overall device
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[0052] "On", "formed on" and "arranged on" in the present invention may mean that one layer is directly formed or disposed on another layer, or that one layer is formed indirectly or Set on another layer, that is, there are other layers between the two layers.
[0053]It should be noted that although the terms "first", "second" and the like may be used herein to describe various components, components, elements, regions, layers and / or sections, these components, components, elements, regions, layers and / or parts should not be limited by these terms. Rather, these terms are used to distinguish one component, component, element, region, layer and / or section from another. Thus, for example, a first component, first member, first element, first region, first layer, and / or first portion discussed below could be termed a second component, second member, second element, second region , the second layer and / or the second portion, without departing from the teachings of the present i...
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Abstract
The embodiment of the invention discloses a screen directional sound production device and a preparation method thereof. In one specific implementation mode, the screen directional sound production device comprises a flexible reflection type liquid crystal display panel and an electrostatic ultrasonic transducer arranged on the side, away from a light emitting side, of the flexible reflection type liquid crystal display panel, and the electrostatic ultrasonic transducer comprises a substrate, a first electrode, a supporting column and a second electrode which are arranged in a stacked mode. The supporting column is used for forming a vibration cavity between the first electrode and the second electrode, the second electrode is fixedly connected with the flexible reflection type liquid crystal display panel, and the second electrode and the flexible reflection type liquid crystal display panel form a vibrating diaphragm of the electrostatic ultrasonic transducer. According to the specific implementation mode, the integrated vibrating diaphragm is formed by the second electrode and the flexible reflection type liquid crystal display panel, so that the screen directional generation device comprising the ultrasonic transducer and the flexible reflection type liquid crystal display panel has integrity and light and thin performance, and the screen directional generation device is thinned.
Description
technical field [0001] The invention relates to the field of display technology. More specifically, it relates to a screen directional sound emitting device and a preparation method thereof. Background technique [0002] With the increase of audio-visual scenes, directional sound technology came into being. Through the modulation of audio signal and ultrasonic carrier signal, the emitted sound wave energy is concentrated to form audible sound waves with strong directivity, which breaks the law of sound propagation in all directions and creates a non-interference A separate audio space for the surrounding environment. [0003] At present, when the directional audio transmission technology is applied to the reflective liquid crystal display, the main way is to hang the directional audio transmission device (ultrasonic transducer) on the reflective liquid crystal display, which leads to the difference between the directional audio transmission device and the reflective liquid ...
Claims
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IPC IPC(8): H04R7/08H04R7/12H04R1/34H04R19/02H04R17/00G02F1/1333
CPCH04R7/08H04R7/122H04R1/345H04R19/02H04R17/00G02F1/1333H04R2201/003H04R2201/02
Inventor 郭兴奎陈俊生臧远生周如许徐飞杨杰王一军杨明坤
Owner HEFEI BOE OPTOELECTRONICS TECH