Liquid crystal lens, goggles, electronic product, and liquid crystal lens driving method

Goggles comprising a frame and a lens, the lens being mounted on the frame, the lens comprising the liquid crystal lens, the liquid crystal lens comprising a liquid crystal layer, a first electrode layer, a second electrode layer, a first transparent substrate, and a second transparent substrate, the first electrode layer and the second electrode layer being respectively arranged at two opposite sides of the liquid crystal layer, the first transparent substrate being arranged at one side of the first electrode layer that is opposite to the liquid crystal layer, the second transparent substrate being arranged at one side of the second electrode layer that is opposite to the liquid crystal layer;

• the second electrode layer comprising multiple electrode units, the multiple electrode units being arranged sequentially from a position adjacent to a center of the second electrode layer toward a position away from the center of the second electrode layer, each of the electrode units comprising at least one conductive line, the conductive line being extended from a first position of the electrode unit to a second position of the electrode unit, a distance between the second position and the center of the second electrode layer being greater than a distance between the first position and the center of the second electrode layer, a spacing distance between adjacent conductive lines being less than or equal to 100 μm, the conductive line having an end driven by a first driving voltage and an opposite end driven by a second driving voltage, the spacing distances between adjacent ones of the conductive lines are identical, the width of every part of the conductive line is made the same, the electrode units comprise one conductive line, and the conductive line comprises multiple intermediate connection sections and multiple concentric circular rings, adjacent ones of the concentric circular rings being connected by means of the intermediate connection sections.

An electronic product comprising a control circuit and the liquid crystal lens, the liquid crystal lens comprising a liquid crystal layer, a first electrode layer, a second electrode layer, a first transparent substrate, and a second transparent substrate, the first electrode layer and the second electrode layer being respectively arranged at two opposite sides of the liquid crystal layer, the first transparent substrate being arranged at one side of the first electrode layer that is opposite to the liquid crystal layer, the second transparent substrate being arranged at one side of the second electrode layer that is opposite to the liquid crystal layer;

• the second electrode layer comprising multiple electrode units, the multiple electrode units being arranged sequentially from a position adjacent to a center of the second electrode layer toward a position away from the center of the second electrode layer, each of the electrode units comprising at least one conductive line, the conductive line being extended from a first position of the electrode unit to a second position of the electrode unit, a distance between the second position and the center of the second electrode layer being greater than a distance between the first position and the center of the second electrode layer, a spacing distance between adjacent conductive lines being less than or equal to 100 μm, the conductive line having an end driven by a first driving voltage and an opposite end driven by a second driving voltage;
• the control circuit being electrically connected to the liquid crystal lens, the spacing distances between adjacent ones of the conductive lines are identical, the width of every part of the conductive line is made the same, the electrode units comprise one conductive line, and the conductive line comprises multiple intermediate connection sections and multiple concentric circular rings, adjacent ones of the concentric circular rings being connected by means of the intermediate connection sections.

A liquid crystal lens driving method, being applicable to the liquid crystal lens which comprises a liquid crystal layer, a first electrode layer, a second electrode layer, a first transparent substrate, and a second transparent substrate, the first electrode layer and the second electrode layer being respectively arranged at two opposite sides of the liquid crystal layer, the first transparent substrate being arranged at one side of the first electrode layer that is opposite to the liquid crystal layer, the second transparent substrate being arranged at one side of the second electrode layer that is opposite to the liquid crystal layer;

• the second electrode layer comprising multiple electrode units, the multiple electrode units being arranged sequentially from a position adjacent to a center of the second electrode layer toward a position away from the center of the second electrode layer, each of the electrode units comprising at least one conductive line, the conductive line being extended from a first position of the electrode unit to a second position of the electrode unit, a distance between the second position and the center of the second electrode layer being greater than a distance between the first position and the center of the second electrode layer, a spacing distance between adjacent conductive lines being less than or equal to 100 μm, the conductive line having an end driven by a first driving voltage and an opposite end driven by a second driving voltage;
• defining a first driving voltage as V1 and a second driving voltage the voltage as V2, the spacing distances between adjacent ones of the conductive lines are identical, the width of every part of the conductive line is made the same, the electrode units comprise one conductive line, and the conductive line comprises multiple intermediate connection sections and multiple concentric circular rings, adjacent ones of the concentric circular rings being connected by means of the intermediate connection sections, the method comprising the following steps:
• S1:
• acquiring a voltage region for linear response of liquid crystal of the liquid crystal lens;
• S2:
• acquiring a minimum voltage Vmin and a maximum voltage Vmax of a linear working region of the liquid crystal according to the voltage region for linear response of the liquid crystal;
• and
• S3:
• adjusting a voltage difference of V1 and V2 according to the minimum voltage Vmin and the maximum voltage Vmax in order to adjust an optical power of the liquid crystal lens and/or to cause a state of the liquid crystal lens between a positive lens and a negative lens, wherein Vmin≤V1≤Vmax, and Vmin≤V2≤Vmax.