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Optical system and its display system

Inactive Publication Date: 2015-08-06
LIQXTAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about an optical system and its display system. It uses an asymmetric refractive index distribution film to effectively compensate for astigmatism and other aberrations caused by the optical module. The invention has the advantage of using a flexible liquid crystalline polymer film that can be used as a simple lens sticker. Additionally, it has the ability to correct nearsightedness, farsightedness, presbyopia, parallax, and compensate for aberration. The non-uniform refractive index distribution of the film eliminates the need for additional electrically-controlled components, reducing costs.

Problems solved by technology

But the manufacture of the mold for the Fresnel lens is very complicated and relatively difficult, and the optical performance has the issues of a high chromatic dispersion and low diffraction efficiency.
Therefore, the present liquid crystalline polymer film with the design of a single focal length cannot be used freely with other lens.

Method used

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  • Optical system and its display system
  • Optical system and its display system
  • Optical system and its display system

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0045]With reference to FIG. 5 for a second schematic view of a method of manufacturing a refractive index distribution film in accordance with the present invention, the liquid crystalline polymer lens structure 2 comprises a flexible substrate 100, a first lens 110 and a first refractive index distribution film 120.

[0046]The first refractive index distribution film 120 composed of a liquid crystal and a liquid crystalline polymer having the feature of birefringence is manufactured by the aforementioned method and encapsulated inside a flexible substrate 100. The first refractive index distribution film 120 has a first refractive index in the X-direction and a second refractive index in the Y-direction.

[0047]The flexible substrate 100 is a laminating film or a flexible plastic substrate used for packaging the first refractive index distribution film 120. In the present embodiment, after the first refractive index distribution film is packaged inside the flexible substrate 100, and ...

third embodiment

[0052]With reference to FIG. 8 for a first schematic view showing the lens effect of a liquid crystalline polymer lens structure in accordance with the present invention, the refractive index distribution film manufactured according to the method as shown in FIG. 2 is used as an example. Since the liquid crystalline polymer molecules at the ends of the first refractive index distribution film 120 and the second refractive index distribution film 130 are erected, therefore the refractive index remains unchanged and there is no lens effect. Other parts of the first refractive index distribution film 120 and the second refractive index distribution film 130 have a single lens effect due to the distribution of the liquid crystal molecules.

[0053]With reference to FIG. 9 for a second schematic view showing the lens effect of a liquid crystalline polymer lens structure in accordance with the third embodiment of the present invention, the refractive index distribution film manufactured acco...

fourth embodiment

[0054]With reference to FIG. 10 for a schematic view of a liquid crystalline polymer lens structure in accordance with the present invention, the liquid crystalline polymer lens structure 5 comprises a first lens 200, a second lens 240, a first electrode layer 250, a second electrode layer 260 and a composite layer 270. Wherein, the first lens 200 has a first side 211, and the second lens 240 has a second side 241 facing the first side 211. The first electrode layer 250 is disposed on the first side 211 of the first lens 200, and the second electrode layer 260 is disposed on the second side 241 of the second lens 240. The composite layer 270 is disposed between the first electrode layer 250 and the second electrode layer 260, and the composite layer 270, arranged along the direction from the first electrode layer 250 to the second electrode layer 260 (which is the Z-direction), sequentially comprises a first alignment layer 280, a first liquid crystal layer 290 and a first refractiv...

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Abstract

An optical system for aberration compensation comprising an optical module and an asymmetric refractive index distribution film is disclosed. The asymmetric refractive index distribution film comprises a liquid crystal and a liquid crystalline polymer, wherein the asymmetric refractive index distribution film set on an out-light surface or an in-light surface of the optical module. A display system comprising the above-mentioned optical system and an image panel are also disclosed herein. The asymmetric refractive index distribution film of the present invention has non-uniform refractive index distribution so as to effectively compensate the aberration formed by the optical module.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This is a continuation-in-part of application Ser. No. 13 / 828,723, filed in Mar. 14, 2013.FIELD OF THE INVENTION[0002]The present invention relates to an optical system, and more particularly to an optical system and a display system having a refractive index distribution film with non-uniform refractive index distribution.BACKGROUND OF THE INVENTION[0003]In general, the principle of designing a lens is to let a traveling light produce an optical path difference (thickness*refractive-index). Since the conventional spherical lens has a thickness increases with the optical power, therefore an improved method uses a Fresnel lens to divide the thickness into a smaller periodical structure was proposed. But the manufacture of the mold for the Fresnel lens is very complicated and relatively difficult, and the optical performance has the issues of a high chromatic dispersion and low diffraction efficiency. Therefore, conventional flat lenses such...

Claims

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Application Information

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IPC IPC(8): G02B27/00G02B5/30G02B5/09G02B3/00G02B3/02
CPCG02B27/0025G02B3/0087G02B3/02G02F2001/294G02B5/3016G02F1/29G02B3/14G02B5/09G02B17/0856G02B27/0172G02F1/294
Inventor CHEN, HUNG-SHANLIN, YI-HSIN
Owner LIQXTAL TECH