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Zoom driving method of liquid crystal lens

A driving method and liquid crystal lens technology, applied in nonlinear optics, instruments, optics, etc., can solve the problem of unsatisfactory zoom speed of liquid crystal lenses, and achieve the effect of increasing zoom speed

Active Publication Date: 2016-06-22
TRULY SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the actual application process, it is found that the effect of the above-mentioned driving method on increasing the zoom speed of the liquid crystal lens is not ideal.

Method used

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  • Zoom driving method of liquid crystal lens
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  • Zoom driving method of liquid crystal lens

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Experimental program
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Effect test

Embodiment 1

[0034]As described in the background art, the driving method for increasing the zoom speed of the liquid crystal lens in the prior art is not ideal. The inventor's research has found that the main causes of the above problems are:

[0035] like figure 1 As shown, the voltage dividing layer 113 is a resistive layer, and its function is to distribute the voltage applied by the first electrode layer 111 on the liquid crystal layer 130. The buffer layer 112 is a dielectric layer, and its function is to connect the first electrode layer 111 and the voltage dividing layer 113. isolation.

[0036] like figure 2 As shown, due to the existence of the voltage dividing layer 113 and the buffer layer 112, after the voltage is applied to the first electrode layer 111 and the second electrode layer 122, it is assumed that the voltage applied to each sub-electrode of the first electrode layer 111 is V a and V b . A first capacitor 201 is formed between the first electrode layer 111 and...

Embodiment 2

[0057] Based on the core idea provided by Embodiment 1, in the zoom driving method provided by this embodiment, the driving voltage applied to each sub-electrode of the first electrode layer during the acceleration driving period is subdivided, which further improves the zoom of the liquid crystal lens. speed.

[0058] If the accelerating driving voltage is subdivided into the first accelerating driving voltage and the second accelerating driving voltage, and the first accelerating driving voltage is greater than the second accelerating driving voltage, then the driving voltage of the changing sub-electrode is switched from the second driving voltage to the accelerating driving voltage. The driving voltage specifically includes: switching the driving voltage of the changing sub-electrode from the second driving voltage to the first accelerating driving voltage; switching the driving voltage of the changing sub-electrode from the first accelerating driving voltage to The second...

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Abstract

The invention provides a zoom driving method for a liquid crystal lens. The zoom driving method includes applying a first driving voltage to a fixed sub electrode while applying a second driving voltage to a variable sub electrode so as to enable the liquid crystal lens to be in a first zooming state, switching the driving voltage of the variable sub electrode into an acceleration driving voltage which is higher than the second driving voltage so as to increase turning speed of liquid crystal molecules in the area of the variable sub electrode, switching the driving voltage of the fixed sub electrode into an offset driving voltage which is lower than the first driving voltage so as to offset influences to the voltage of the fixed sub electrode from the acceleration driving voltage, and further, switching the driving voltage of the variable sub electrode into a third driving voltage from the acceleration voltage while switching the driving voltage of the fixed sub electrode into the first driving voltage from the offset driving voltage so as to enable the liquid crystal lens to be in a second zooming state. The liquid crystal molecules in different areas of the liquid crystal lens can be turned in place simultaneously within a short time, and thus the zooming speed of the liquid crystal lens is increased.

Description

technical field [0001] The present invention relates to the field of liquid crystal lens technology, and more specifically, relates to a zoom driving method of a liquid crystal lens. Background technique [0002] Liquid crystal is a special state of matter. It is different from solid crystals with fixed shape and anisotropic optical properties (with optical properties such as birefringence), and different from non-fixed shapes with various optical properties. Isotropic liquid, liquid crystal is a viscous liquid with anisotropy in optical properties (with optical properties such as birefringence). Because of its special physical, chemical, and optical properties, liquid crystals are widely used in display technology, various optical devices and other fields. Among them, liquid crystal lenses are a research hotspot in the current field. [0003] The basic structure of a liquid crystal lens is as figure 1 As shown, the sequence from the first substrate to the second substrate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/29G02F1/133G02F1/1343
Inventor 吴振忠刘亮阮小龙陈魁周鸣岐徐响战王东岳何基强李建华
Owner TRULY SEMICON