Liquid crystal display including nanocapsule layer

Abstract

Disclosed is a liquid crystal display device that may include a first substrate; a first electrode on the first substrate, the first electrode including a plurality of first inclined planes; a nanocapsule liquid crystal layer on the first electrode, the nanocapsule liquid crystal layer including a plurality of nano-sized capsules dispersed in a buffer layer, each of the plurality of nano-sized capsules including nematic liquid crystal molecules having a negative dielectric constant anisotropy; and a second electrode on the nanocapsule liquid crystal layer, the second electrode including a plurality of second inclined planes facing the plurality of first inclined planes, wherein the nanocapsule liquid crystal layer is substantially, optically isotropic in a normal state, and is optically anisotropic when a voltage is applied to the first and second electrodes.

1 - 33 . (canceled) 
     
     
         34 . A flexible type liquid crystal display device comprising:
 a liquid crystal panel that includes a nanocapsule liquid crystal layer on a substrate which a first electrode and a second electrode are formed on;   a polarizing plate on the liquid crystal panel; and   a backlight unit that is below the liquid crystal panel, and supplies a predetermined linearly polarized light perpendicular to a polarizing axis of the polarizing plate,   
       wherein the nanocapsule liquid crystal layer has an optical anisotropy according to a voltage difference between voltages applied to the first and second electrodes, and has an optical isotropy when no voltages are applied to the first and second electrodes. 
     
     
         35 . The device of  claim 34 , wherein the backlight unit includes:
 a light guide plate;   a light source arranged along a light incidence surface of the light guide plate; and   a reflective polarizing film between the light source and the light incidence surface of the light guide plate.   
     
     
         36 . The device of  claim 34 , wherein the backlight unit includes:
 a light guide plate; and   non-polar or semi-polar LEDs that are arranged along a light incidence surface of the light guide plate and emit polarized light to the light guide plate.   
     
     
         37 . The device of  claim 34 , wherein the backlight unit includes:
 a light guide plate including a wire grid lattice; and   a light source arranged along a light incidence surface of the light guide plate.   
     
     
         38 . The device of  claim 34 , wherein the backlight unit includes:
 a light guide plate;   a light source arranged along a light incidence surface of the light guide plate; and   a polarization separation layer on the light guide plate.   
     
     
         39 . The device of  claim 35 , wherein a reflection sheet is below the light guide plate, and at least one optical sheet is on the light guide plate. 
     
     
         40 . The device of  claim 35 , wherein the light guide plate includes a plurality of optical fibers that are parallel with each other to form a plate,
 wherein each optical fiber includes:   a core; and   
       a clad that encloses an outer surface of the core, and that includes a light guide portion having a refractive index less than a refractive index of the core, and a light emission portion having a refractive index equal to or greater than the refractive index of the core. 
     
     
         41 . The device of  claim 36 , wherein the light guide plate includes a plurality of optical fibers that are parallel with each other to form a plate,
 wherein each optical fiber includes:   a core; and   a clad that encloses an outer surface of the core, and that includes a light guide portion having a refractive index less than a refractive index of the core, and a light emission portion having a refractive index equal to or greater than the refractive index of the core.   
     
     
         42 . The device of  claim 35 , wherein the reflective polarizing film is formed to have a multi-layered structure that includes a polarizer embedded in a lamination structure of dielectric thin films having different refractive indices, or is formed to be a wire grid type reflective polarizing film that includes fine metal patterns arranged in parallel along a direction. 
     
     
         43 . The device of  claim 34 , wherein the nanocapsule liquid crystal layer is located facing the backlight unit, and the polarizing plate is located at an outer side of the substrate. 
     
     
         44 . The device of  claim 43 , wherein a touch panel is located on the outer side of the substrate. 
     
     
         45 . The device of  claim 34 , wherein the liquid crystal panel and the backlight unit are modulized in a lamination process using an adhesive. 
     
     
         46 . The device of  claim 34 , wherein a diameter of a nano-sized capsule of the nanocapsule liquid crystal layer is about 1 nm to about 320 nm. 
     
     
         47 . The device of  claim 34 , wherein a volume of a nano-sized capsule of the nanocapsule liquid crystal layer is about 25% to about 65% of a volume of the nanocapsule liquid crystal layer. 
     
     
         48 . The device of  claim 34 , wherein a thickness of the nanocapsule liquid crystal layer is about 2 um to about 5 um. 
     
     
         49 . The device of  claim 34 , wherein a refractive index different between a liquid crystal molecule and a nano-sized capsule of the nanocapsule liquid crystal layer is about ±0.1.