G02F1/133635

LIQUID CRYSTAL DISPLAY DEVICE AND PRODUCTION METHOD FOR LIQUID CRYSTAL DISPLAY DEVICE
20200192139 · 2020-06-18 ·

The present, invention provides a liquid crystal display device that can exhibit excellent retardation stability against heat and that can prevent reduction in contrast ratio due to scattering even when the liquid crystal display device includes a retardation layer formed by polymerization of a reactive monomer, and a method for producing a liquid crystal display device suitable for production of the liquid crystal display device. The liquid crystal display device of the present invention includes paired substrates and a liquid crystal layer provided between the paired substrates. At least one of the paired substrates includes a retardation layer formed from a polymer of at least one type of monomer. The at least one type of monomer includes a photo-aligning monomer that is to be aligned by polarized light.

Anti-reflection structure and fabrication method thereof, display device and fabrication method thereof
10684394 · 2020-06-16 · ·

An anti-reflection structure and a fabrication method thereof, a display device and a fabrication method thereof are provided. The anti-reflection structure includes a retardation film, a linear polarizer sheet, and at least one alignment layer, configured to align the retardation film and the linear polarizer sheet, wherein, the retardation film and the linear polarizer sheet include liquid crystal.

Light Modulation Device

A light modulation device is disclosed herein. In some embodiments, a light modulation device includes a first polymer film substrate, a second polymer film substrate, an active liquid crystal layer disposed between the first and second polymer film substrates, a reflective layer, wherein the active liquid crystal layer is capable of switching between a first orientation state and a second orientation state different from the first orientation state upon application of a voltage, each of the polymer film substrates has an in-plane retardation of 4,000 nm or more for light having a wavelength of 550 nm, a ratio of an elongation (E1) in a first direction to an elongation (E2) in a second direction perpendicular to the first direction of 3 or more, and wherein an angle formed by the first directions of the first and second polymer film substrates is in a range of 0 degrees to 10 degrees.

Display device with a capacitive touch panel
10656468 · 2020-05-19 · ·

Disclosed is a display device with a capacitive touch panel including a laminate between a display panel and a cover layer, the laminate having a viewing-side polarizing plate; a first conductive layer, a dielectric layer and a second conductive layer constituting a capacitive touch sensor; and a substrate, in which the first conductive layer, dielectric layer, second conductive layer, and substrate are positioned closer to the cover layer than is the viewing-side polarizing plate, the first conductive layer is formed on one surface of the to substrate, the dielectric layer is formed on a surface of the first conductive layer opposite to the substrate side, the second conductive layer is formed on a surface of the dielectric layer opposite to the first conductive layer side, the substrate has an optical film with a phase difference of (2n1)/4, where n is a positive integer, the viewing-side polarizing plate has a polarizing film, and a slow axis of the optical film intersects a transmission axis of the polarizing film at an angle of about 45 as viewed in a stacking direction.

LIGHT MODULATION DEVICE

A light modulation device is disclosed herein. In some embodiments, a light modulation device includes a first polymer film substrate, a second polymer film substrate, an active liquid crystal layer disposed between the first and second polymer film substrates, wherein the active liquid crystal layer is capable of switching between a first orientation state and a second orientation state when a voltage is applied, and a polarizer, wherein each of the first and second polymer film substrates have in-plane retardation of 4,000 nm or more for light having a wavelength of 550 nm, a ratio of an elongation (E1) in a first direction to an elongation (E2) in a second direction perpendicular to the first direction of 3 or more, and wherein an angle formed by the first directions of the first and second polymer film substrates is in a range of 0 degrees to 10 degrees.

Light Modulation Device

A light modulation device is disclosed herein. In some embodiments, a light modulation device includes a first polymer film substrate, a second polymer film substrate, an active liquid crystal layer disposed between the first and second polymer film substrates, wherein the active liquid crystal layer is capable of switching between a vertical orientation state and a twisting orientation state upon application of a voltage, each of the first and second polymer film substrates has an in-plane retardation of 4,000 nm or more for light having a wavelength of 550 nm, a ratio of an elongation (E1) in a first direction to an elongation (E2) in a second direction perpendicular to the first direction of 3 or more, and wherein an angle formed by the first directions of the first and second polymer film substrates is in a range of 0 degrees to 10 degrees.

Retardation material-forming resin composition, orientation material, and retardation material

A retardation material-forming resin composition for providing an orientation material that has high photoreaction efficiency and with which a polymerizable crystal can be aligned in a highly sensitive manner. A retardation material-forming resin composition being thermally curable wherein including a resin (component (A)) having a photo-aligning group to which a thermally reactive moiety is bonded directly or connected via a linking group; an orientation material obtained by use of the composition, and a retardation material formed by use of a cured film obtained from the composition.

Phase difference compensation element, liquid crystal display device, and projection-type image display device
10564477 · 2020-02-18 · ·

An object is to provide a phase difference compensation element capable of improving the contrast of a liquid crystal display device while solving the problems of a high cost, an increase in the lead time, an increase in the mounting space, and the durability. A phase difference compensation element includes: a phase difference imparting and reflection preventing layer; a first birefringence layer and a second birefringence layer in which an angle of a corner formed by a main axis of refractive index anisotropy and a surface of a transparent substrate is not 90 degrees; a third birefringence layer in which an angle of a corner formed by a main axis of refractive index anisotropy and the surface of the transparent substrate is 0 degrees, wherein, when segments acquired when the main axes of the first, second, and third birefringence layers are projected onto the transparent substrate are respectively denoted by a segment A, a segment B, and a segment C, relations of the following (1) and (2) are satisfied. (1) The angle of the corner formed by the segment A and the segment B is 45 degrees or more and 70 degrees or less. (2) The segment A and the segment C are approximately parallel with each other, or the segment B and the segment C are approximately parallel with each other.

OUTDOOR DISPLAY DEVICE

Disclosed herein is an outdoor display device capable of improving image visibility. The outdoor display device includes a housing unit having an opening in a front surface thereof, a glass unit prepared or positioned in the opening of the housing unit, and a display unit prepared or positioned in the housing unit, and including a liquid crystal display panel disposed in a rear of the glass unit to display an image, and the glass unit includes a transparent member, a polarizing film on a rear of the transparent member, and a /4 film on at least any one of the polarizing film and the liquid crystal display panel.

PHASE DIFFERENCE PLATE, MULTILAYER PHASE DIFFERENCE PLATE, POLARIZING PLATE, IMAGE DISPLAY DEVICE AND POLYMERIZABLE COMPOUND

A phase difference plate including a layer of a liquid crystal material oriented in an in-plane direction, wherein an in-plane retardation Re() at a wavelength nm of the phase difference plate satisfes the following formulae (e1) and (e2): {Re(400)-Re(550)}/{Re(550)-Re(700)}<2.90 (e1), and Re(400)/Re(700) >1.13 (e2); as well as a multilayer phase difference plate including the same, a polarizing plate including the same, and an image display device including the same.