Display device based on surface acoustic wave technology and method thereof

A display device, surface acoustic wave technology, applied in optical components, optics, instruments, etc., can solve the problems of limiting particle types, difficult to achieve high-brightness color and video speed, etc., to achieve short response time, easy to form color display, response fast effect

Active Publication Date: 2015-12-30
SOUTH CHINA NORMAL UNIVERSITY +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, this method has relatively high requirements on particle size, charge, density, etc., which limits the types of particles that can be used for electrophoretic display, and it is difficult to achieve high-brightness color and video speed.

Method used

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  • Display device based on surface acoustic wave technology and method thereof
  • Display device based on surface acoustic wave technology and method thereof
  • Display device based on surface acoustic wave technology and method thereof

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Embodiment Construction

[0030] In the following, the concept, specific structure and technical effects of the present invention will be clearly and completely described in conjunction with the embodiments and the drawings to fully understand the purpose, features and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work belong to The scope of protection of the present invention. The various technical features in the invention can be combined interactively on the premise of not conflicting with each other.

[0031] Such as figure 1 As shown, a schematic cross-sectional view showing an embodiment of the display device 1 based on the particle aggregation and dispersion display technology of the present invention figure 1 (A) and stereogram figure 1 (B), the display device include...

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Abstract

The invention discloses a display device based on a surface acoustic wave technology and a method thereof. The display device comprises at least one display component. The display component comprises an elastic piezoelectric substrate; a cavity which is arranged on the elastic piezoelectric substrate, wherein fluid containing colored particles is filled in the cavity; multiple interdigital electrodes which are arranged on the elastic piezoelectric substrate and positioned at the lateral part of the cavity, wherein the interdigital electrodes are symmetrically arranged at the lateral part of the cavity; and a control system which is used for applying radio frequency electric signals to the interdigital electrodes. According to the display method, a light source is not required to be additionally arranged, and the display method can be realized by means of environment light. The colored particles are aggregated and dispersed by the effect of surface acoustic wave so that the objective of color change and gray display can be achieved. Besides, response time is short, response speed is high and limitation of the shape and the material type of the particles is low.

Description

Technical field [0001] The present invention relates to a display technology based on particle aggregation and dispersion, and in particular to a display device and method based on surface acoustic wave technology for particle aggregation and dispersion. Background technique [0002] Surface acoustic wave technology is a cross-technology that integrates electronics and acoustics developed in the 1960s. The wavelength of surface acoustic wave is very short, and the working frequency is as high as 30-3000MHz. Compared with the slower propagation speed of electromagnetic wave, it spreads at 3000-45000m / s on the surface of elastic material, so it is easy to collect and process. As a mechanical wave, surface acoustic wave has a higher The electromagnetic wave has strong anti-interference and anti-radiation capabilities; and the production process of the acoustic-electric transducer device that generates the surface acoustic wave is compatible with the semiconductor production process,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/00
Inventor 水玲玲张盎然金名亮周国富
Owner SOUTH CHINA NORMAL UNIVERSITY
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