Variable-focus lens and display device

Abstract

The invention, which relates to the technical field of display, discloses a variable-focus lens and a display device. The variable-focus lens comprises a liquid crystal lens and an optical lens. The liquid crystal lens consists of a first substrate and a second substrate which are oppositely arranged, and a liquid crystal layer. The liquid crystal layer includes a plurality of liquid crystal molecules. The optical lens is arranged at one side, away from the second substrate, of the first substrate. The first substrate includes a first substrate body, a first electrode layer and a first alignment layer which are arranged in sequence; and the second substrate includes a second substrate body, a second electrode layer and a second alignment layer which are arranged in sequence. The first alignment layer and the second alignment layer are arranged at sides, close to the first substrate body and the second substrate body, of the liquid crystal layer respectively. The first electrode layer includes a through hole area; and the center point of the through hole area coincides with the center point of the second electrode layer in a direction perpendicular to the second substrate. Voltagesare applied to the first electrode layer and the second electrode layer to control deflection of the liquid crystal molecules. After combination of the liquid crystal lens and the optical lens, the variable-focus function of the camera can be realized; and camera shooting effect of the front-facing camera can be improved.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to a variable focus lens and a display device. Background technique [0002] At present, there are two common design methods for the full-screen front camera in the prior art. One uses the method of digging holes to dig out the screen for placement of the camera; Reserve the position for placing the camera for installing the camera below it. For the way of installing the camera in the prior art, the camera is usually placed under the screen alone, and it is difficult to achieve a good camera effect due to the penetration problem, and the camera is usually composed of a fixed optical glass lens, which cannot realize the directional focusing function; therefore, it is urgent to design A front camera with a zoom function to enhance the camera effect of the front camera. Contents of the invention [0003] In view of this, the present invention provides a variable f...

AI Technical Summary

Problems solved by technology

For the way of installing the camera in the prior art, the camera is usually placed under the screen alone, and it is difficult to achieve a good camera effect due to the penetration problem, and the camera is usually composed of a fixed optical glass lens, which cannot realize the directional focusing function; therefore, it is urgent to design A front camera with a zoom function to improve the camera effect of the front camera

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