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Blue-phase liquid crystal Fresnel lens and preparation method thereof

A Fresnel lens and blue-phase liquid crystal technology, applied in the field of naked-eye 3D display, can solve the problems of affecting the viewing effect, blurring of dynamic images, and slow response speed of liquid crystal molecules, etc., achieving wide viewing angle, reduced box thickness, and reduced Effect of 3D display screen crosstalk problem

Active Publication Date: 2018-08-10
NINGBO WANWEI DISPLAY TECH CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that as the size of the liquid crystal display becomes larger and the thickness of the TN cell increases, the response speed of the liquid crystal molecules becomes slower, especially when switching between 2D and 3D, the dynamic image is prone to be blurred and affects the viewing effect, and provides A kind of blue phase liquid crystal Fresnel lens and preparation method thereof

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  • Blue-phase liquid crystal Fresnel lens and preparation method thereof
  • Blue-phase liquid crystal Fresnel lens and preparation method thereof
  • Blue-phase liquid crystal Fresnel lens and preparation method thereof

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specific Embodiment approach 1

[0056] Specific implementation mode one: the following combination Figure 1 to Figure 9 To illustrate this embodiment, the blue-phase liquid crystal Fresnel lens described in this embodiment can be found in figure 1 As shown, the working mechanism of the blue-phase liquid crystal is based on the Kerr effect. In the state of no power, the blue-phase liquid crystal molecules are isotropic, and the blue-phase liquid crystal molecules are spherical. Under the action of a strong electric field, the blue-phase liquid crystal passes through itself The deformation stretches along the long axis, and the blue phase liquid crystal molecules have an elliptical structure and become anisotropic. Affected by the strength of the electric field, the blue-phase liquid crystal molecules themselves change from a spherical shape to an elliptical shape, resulting in a gradient refractive index change.

[0057] see figure 2 , figure 2It is a schematic diagram of the principle of the blue-phase...

specific Embodiment approach 2

[0060] Specific implementation mode two: the following combination Figure 5 to Figure 9 To illustrate this embodiment, the blue-phase liquid crystal Fresnel lens described in this embodiment can be found in Figure 5 As shown, according to the Kerr effect of the blue phase liquid crystal, its birefringence difference Δn(ind)=λKE 2 , where λ is the wavelength of the incident light, K is the Kerr coefficient, E is the electric field intensity, E=U / D, if the electric field E wants to maintain a linear distribution, the condition U must be satisfied i =m×D i , m is a constant, U i The applied voltage for the ith electrode strip, D i is the thickness of the position corresponding to the i-th electrode strip on the Fresnel concave arc surface structure polymer layer 205 of the upper substrate, when applying voltages to different electrode strips, it satisfies U 1 =m×D 1 , U 2 =m×D 2 ,...,U n =m×D n , then the refractive index difference Δn(ind) remains unchanged, and the r...

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Abstract

The invention provides a blue phase liquid crystal Fresnel lens and a preparation method thereof, and belongs to the technical field of naked eye 3D (three-dimensional) display. The invention aims at solving the problems that along with the liquid crystal display dimension increase, the TN box thickness is increased; the liquid crystal molecule response speed is decelerated; during the 2D / 3D switching, the dynamic image fuzziness occurs, and the watching effect is influenced. The blue phase liquid crystal Fresnel lens has the first technical scheme that the blue phase liquid crystal Fresnel lens comprises an upper base plate, an upper base plate transparent plane electrode layer, a lower base plate transparent plane electrode layer, a lower base plate Fresnel arc surface structure polymer layer, a blue phase liquid crystal layer and a lower base plate, wherein the blue phase liquid crystal layer is arranged between the upper base plate transparent plane electrode layer and the lower base plate Fresnel arc surface structure polymer layer. The blue phase liquid crystal Fresnel lens has the second technical scheme that the blue phase liquid crystal Fresnel lens comprises the upper base plate, the upper base plate Fresnel concave arc surface structure polymer layer, an upper base plate Fresnel concave arc surface structure polymer layer forming electrode layer, a lower base plate transparent flaky electrode layer, a dielectric layer, a blue phase liquid crystal layer and a lower base plate, wherein the blue phase liquid crystal layer is arranged among the upper base plate Fresnel concave arc surface structure polymer layer forming electrode layer, the lower base plate transparent flaky electrode layer and the dielectric layer.

Description

technical field [0001] The invention belongs to the technical field of naked-eye 3D display. Background technique [0002] The early stereoscopic display technology mainly used additional devices such as glasses and stereoscopic helmets to watch stereoscopic images, while the current mainstream naked-eye 3D display mainly uses a light-splitting device such as a slit grating or a cylindrical lens grating bound in front of the flat-panel display. The main function of the device is to perform spatial light modulation on the passing light, that is, to modulate the light of different viewpoint images differently according to the design requirements, so that it can reach the corresponding viewing area, and obtain stereoscopic perception after brain fusion. This grating autostereoscopic display has the advantages of simple process, getting rid of the shackles of additional devices, and good 3D display effect, but at the same time, it has problems such as 3D image resolution, bright...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/29G02F1/1335G02F1/1343G02F1/137G02F1/1333
CPCG02F1/1333G02F1/133526G02F1/13439G02F1/137G02F1/29G02F1/13793
Inventor 王华波顾开宇李应樵张春光
Owner NINGBO WANWEI DISPLAY TECH CO LTD
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