3D GRID CONTROLLABLE LIQUID CRYSTAL LENS AND MANUFACTURING METHOD THEREOF
First Claim
1. A three-dimensional (3D) grid controllable liquid crystal lens, comprising:
- a first substrate;
a plurality of first active device arrays disposed on the first substrate, each of the first active device arrays comprising a thin film transistor, a storage capacitor, and a transparent electrode electrically connected to the thin film transistor;
a first insulating layer disposed above the first active device arrays;
a plurality of first spacers disposed on the first substrate and supporting the first insulating layer, so as to form a first containing space between the first insulating layer and the first active device arrays;
a plurality of second active device arrays disposed on the first insulating layer, each of the second active device arrays comprising a thin film transistor, a storage capacitor, and a transparent electrode electrically connected to the thin film transistor;
a second insulating layer disposed above the second active device arrays;
a plurality of second spacers disposed on the first insulating layer and supporting the second insulating layer, so as to form a second containing space between the second insulating layer and the second active device arrays;
a plurality of third active device arrays disposed on the second insulating layer, each of the third active device arrays comprising a thin film transistor, a storage capacitor, and a transparent electrode electrically connected to the thin film transistor;
a second substrate comprising a common electrode disposed thereon and arranged opposite to the first substrate, and the common electrode is located between the second substrate and the third active device arrays;
a plurality of third spacers disposed on the second insulating layer and supporting the second substrate, so as to form a third containing space between the second substrate and the third active device arrays; and
a plurality of liquid crystal layers respectively disposed in the first containing space, the second containing space, and the third containing space.
1 Assignment
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Accused Products
Abstract
A 3D grid controllable liquid crystal lens is provided. In the 3D grid controllable liquid crystal lens, at least two layers of a plurality of active device arrays are stacked on a first substrate, and a plurality of liquid crystal layer are respectively disposed on the active device arrays. Then, a driving voltage applied on each active device array is suitably controlled to control the orientation of the liquid crystal molecules, so as to generate a refractive index distribution similar to gradient-index lens in the 3D grid controllable liquid crystal lens. Therefore, the 3D grid controllable liquid crystal lens has a focusing function for focusing/diverging the light, similar to a convex lens or a concave lens. A method for manufacturing the 3D grid controllable liquid crystal lens is also provided.
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Citations
22 Claims
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1. A three-dimensional (3D) grid controllable liquid crystal lens, comprising:
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a first substrate; a plurality of first active device arrays disposed on the first substrate, each of the first active device arrays comprising a thin film transistor, a storage capacitor, and a transparent electrode electrically connected to the thin film transistor; a first insulating layer disposed above the first active device arrays; a plurality of first spacers disposed on the first substrate and supporting the first insulating layer, so as to form a first containing space between the first insulating layer and the first active device arrays; a plurality of second active device arrays disposed on the first insulating layer, each of the second active device arrays comprising a thin film transistor, a storage capacitor, and a transparent electrode electrically connected to the thin film transistor; a second insulating layer disposed above the second active device arrays; a plurality of second spacers disposed on the first insulating layer and supporting the second insulating layer, so as to form a second containing space between the second insulating layer and the second active device arrays; a plurality of third active device arrays disposed on the second insulating layer, each of the third active device arrays comprising a thin film transistor, a storage capacitor, and a transparent electrode electrically connected to the thin film transistor; a second substrate comprising a common electrode disposed thereon and arranged opposite to the first substrate, and the common electrode is located between the second substrate and the third active device arrays; a plurality of third spacers disposed on the second insulating layer and supporting the second substrate, so as to form a third containing space between the second substrate and the third active device arrays; and a plurality of liquid crystal layers respectively disposed in the first containing space, the second containing space, and the third containing space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A manufacturing method of a three-dimensional (3D) grid controllable liquid crystal lens, comprising:
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providing a first substrate; forming a plurality of first active device arrays on the first substrate, wherein each of the first active device arrays comprises a thin film transistor, a storage capacitor, and a transparent electrode electrically connected to the thin film transistor; forming a first dielectric layer on the first substrate to cover the first active device arrays; patterning the first dielectric layer to form a plurality of first through holes exposing the first substrate; injecting a first spacer material into the first through holes, so as to form a plurality of first spacers on the first substrate; forming a first insulating layer on the first dielectric layer, wherein the first spacers support the first insulating layer; forming a plurality of second active device arrays on the first insulating layer, wherein each of the second active device arrays comprises a thin film transistor, a storage capacitor, and a transparent electrode electrically connected to the thin film transistor; forming a second dielectric layer on the first insulating layer to cover the second active device arrays; patterning the second dielectric layer to form a plurality of second through holes exposing the first insulating layer; injecting a second spacer material into the second through holes, so as to form a plurality of second spacers on the first insulating layer; forming a second insulating layer on the second dielectric layer, wherein the second spacers support the second insulating layer; forming a plurality of third active device arrays on the second insulating layer, wherein each of the third active device arrays comprises a thin film transistor, a storage capacitor, and a transparent electrode electrically connected to the thin film transistor; forming a third dielectric layer on the second insulating layer to cover the third active device arrays; patterning the third dielectric layer to form a plurality of third through holes exposing the first insulating layer; injecting a third spacer material into the third through holes, so as to form a plurality of third spacers on the second insulating layer; assembling the first substrate with a second substrate; removing the first dielectric layer, the second dielectric layer, and the third dielectric layer, so as to respectively form a first containing space between the first insulating layer and the first active device arrays, a second containing space between the second insulating layer and the second active device arrays, and a third containing space between the second substrate and the third active device arrays; and injecting a liquid crystal material between the first substrate and the second substrate, so as to form a plurality of liquid crystal layers, wherein the liquid crystal layers are respectively disposed in the first containing space, the second containing space, and the third containing space, a common electrode is disposed on the second substrate, and the common electrode is arranged between the second substrate and the third active device arrays. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A three-dimensional (3D) grid controllable liquid crystal lens, comprising:
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a first substrate; a plurality of first active device arrays disposed on the first substrate, each of the first active device arrays comprising a thin film transistor, a storage capacitor, and a transparent electrode electrically connected to the thin film transistor; a first insulating layer disposed above the first active device arrays; a plurality of first spacers disposed on the first substrate and supporting the first insulating layer, so as to form a first containing space between the first insulating layer and the first active device arrays; a plurality of second active device arrays disposed on the first insulating layer, each of the second active device arrays comprising a thin film transistor, a storage capacitor, and a transparent electrode electrically connected to the thin film transistor; a second substrate comprising an electrode layer disposed thereon, the electrode layer arranged opposite to the first substrate, and the electrode layer is located between the second substrate and the second active device arrays; a plurality of second spacers disposed on the first insulating layer and supporting the second substrate, so as to form a second containing space between the second substrate and the second active device arrays; and a plurality of liquid crystal layers respectively disposed in the first containing space and the second containing space.
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Specification