Fresnel liquid crystal lens structure and display device
A liquid crystal lens and lens technology, applied in static indicators, instruments, nonlinear optics, etc., can solve the problems of low light efficiency of Fresnel liquid crystal lenses
Active Publication Date: 2022-07-19
BOE TECH GRP CO LTD
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Problems solved by technology
[0003] In order to solve the above technical problems, the present invention provides a Fresnel liquid crystal lens structure and a display device to solve the problem of low light efficiency of the Fresnel liquid crystal lens
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[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of the present invention.
[0048] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing t...
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Abstract
The invention relates to a Fresnel liquid crystal lens structure, comprising a first substrate and a second substrate arranged oppositely, and a first electrode, a second electrode and a liquid crystal layer located between the first substrate and the second substrate, the first electrode is a plate electrode, the second electrode is a plurality of concentric annular electrodes; the plurality of concentric annular electrodes are divided into a plurality of electrode groups along the first direction, so as to divide the formed Fresnel liquid crystal lens into a plurality of lens areas; each The electrode groups are divided into a plurality of sub-electrode groups arranged periodically along the first direction, so as to divide each lens area into a plurality of sub-lens areas arranged periodically; The sub-lens areas of the topography, and the number of electrodes in the sub-electrode groups located in different electrode groups is different, so that the number of steps in the sub-lens areas located in different lens areas is different. The present invention also relates to a display device.
Description
technical field [0001] The invention relates to the technical field of liquid crystal product manufacturing, in particular to a Fresnel liquid crystal lens structure and a display device. Background technique [0002] Fresnel lens, also known as threaded lens, is mostly a thin sheet made of polyolefin material, and it is also made of glass. One side of the lens surface is smooth, and the other side is engraved with concentric circles from small to large, and adjacent The width between the concentric circles gradually decreases from the center to the edge, and its texture is designed according to the requirements of light interference, interference, relative sensitivity and receiving angle. At present, people use a Fresnel liquid crystal lens to simulate the phase retardation curve of an ideal Fresnel lens. The Fresnel liquid crystal lens generally includes a first substrate and a second substrate arranged oppositely, a liquid crystal layer, a first electrode and a second el...
Claims
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IPC IPC(8): G02F1/1343G02F1/133
CPCG02F1/1343G02F1/134309G02F1/13306G02F1/29G02F2201/12
Inventor 王海燕
Owner BOE TECH GRP CO LTD