Method and device for driving dynamic fast response of liquid crystal lens

A technology of liquid crystal lens and driving method, applied in static indicators, optics, instruments, etc., can solve the problem of inability to respond quickly to multi-electrode liquid crystal lenses, and achieve the effect of solving fast dynamic response and speeding up

Active Publication Date: 2011-05-25
SUPERD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the dynamic fast response of the multi-electrode liquid crystal lens cannot be performed in the prior art, the present invention proposes a driving method and a driving device for the dynamic fast response of the multi-electrode liquid crystal lens

Method used

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  • Method and device for driving dynamic fast response of liquid crystal lens
  • Method and device for driving dynamic fast response of liquid crystal lens
  • Method and device for driving dynamic fast response of liquid crystal lens

Examples

Experimental program
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Effect test

Embodiment 1

[0065] Embodiment 1: A driving voltage is applied to the edge electrodes E1 and En of each single liquid crystal microlens.

[0066] (11) The first half cycle driving process of each driving cycle includes the following steps:

[0067] (a1) Applying the first driving voltage on the edge electrodes E1 and En of each single liquid crystal microlens:

[0068] See eg Figure 9 In the section a of the driving voltage waveform of the edge electrodes E1 and En shown, the amplitude of the first driving voltage is V1, and the amplitude of the first optimized voltage is V2. At t=0, each single liquid crystal microlens A first driving voltage with an amplitude of V1 is applied to the edge electrodes E1 and En at the same time, and the first driving voltage is an overdriving voltage with a frequency lower than the separation frequency fc, and the application time is a first time period Δtr. At this moment, the first driving voltage is an overdriving voltage. The so-called overdrive vol...

Embodiment 2

[0091] Embodiment 2, on the basis of Embodiment 1, cancel the second driving voltage applied on the middle electrode E(n+1) / 2 in the first cycle:

[0092] In embodiment 2, the driving process on the edge electrodes E1 and En of each single liquid crystal microlens, and the second middle electrode (E2, E3..., E(n+1) / 2 of each single liquid crystal microlens -1, the driving process of E(n+1) / 2+1...En-1) is the same as that in embodiment 1, refer to the (a1), (c1) parts in embodiment 1, not here Let me tell you more.

[0093] The driving process of the middle electrode E(n+1) / 2 of each single liquid crystal microlens is described in detail below:

[0094] see Figure 12 , in the first period, in the a section of the driving process of each single liquid crystal microlens intermediate electrode E(n+1) / 2, at t=0, each single liquid crystal microlens intermediate electrode E(n+1 ) / 2, the second optimal voltage is applied, the amplitude of which is V4, and the application time is ...

Embodiment 3

[0097] Embodiment 3, on the basis of embodiment 2, the sub-intermediate electrodes (E2, E3..., E(n+1) / 2-1, E(n+1) / 2+1...En-1 ) on the third drive voltage applied.

[0098] In embodiment 3, the driving process on the edge electrodes E1 and En of each single liquid crystal microlens is the same as that in embodiment 1, see part (a1) in embodiment 1, and the middle of each single liquid crystal microlens The driving process of the electrode E(n+1) / 2 is the same as that of Embodiment 2, refer to Embodiment 2, and will not be repeated here.

[0099] The sub-intermediate electrodes (E2, E3..., E( n+1) / 2-1, E(n+1) / 2+1...En-1) driving process:

[0100] see Figure 13 , in the driving process of each single liquid crystal microlens sub-intermediate electrode (E2, E3..., E(n+1) / 2-1, E(n+1) / 2+1...En-1) Section a, at time t=0, in each single liquid crystal microlens sub-intermediate electrode (E2, E3..., E(n+1) / 2-1, E(n+1) / 2+1.. No driving voltage is applied to En-1), and the time of n...

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Abstract

The embodiment of the invention relates to a method and device for driving fast response of a liquid crystal lens, wherein the liquid crystal lens adopts a double-frequency liquid crystal which has a separation frequency. The driving method provided by the invention respectively adopts high-frequency voltage and low-frequency voltage to drive the double-frequency liquid crystal according to the function requirements of the liquid crystal lens, wherein the frequency of the high-frequency voltage is higher than the separation frequency, and the frequency of the low-frequency voltage is lower than the separation frequency. In the embodiment of the invention, the high-frequency voltage and the over-driving voltage are applied to each electrode on the liquid crystal lens and effectively the speed of liquid crystal molecules forming optical path curve distribution in an ideal parabola shape is increased, thereby effectively solving the problem that dynamic fast response can not be carried out on a multi-electrode liquid crystal lens in the prior art.

Description

【Technical field】 [0001] The invention relates to a dynamic driving method of a liquid crystal lens, in particular to a dynamic fast response driving method of a liquid crystal lens, and also relates to a dynamic driving device of a liquid crystal lens. 【Background technique】 [0002] Traditional cylindrical lens gratings or black-and-white parallax barrier gratings sacrifice horizontal resolution to obtain the effect of spatially dividing left and right images, while multi-electrode dynamic liquid crystal lenses made of liquid crystal materials can effectively overcome this defect. The dynamic and fast response method forms a microlens effect in a specific time and specific area, so as to achieve the effect of high-resolution 3D display. The specific principle is described as follows: the left and right images corresponding to the left and right eyes of the person are divided into time as follows: figure 1 L1 and L2 in (a) and figure 1 The R1 and R2 striped image pair sho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133G02F1/1343G02F1/29G02B27/22
Inventor 尚小兵李建军李得俊
Owner SUPERD CO LTD
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