G02B5/3033

Polymerizable liquid crystal composition, method for producing polymerizable liquid crystal composition, optically anisotropic film, optical film, polarizing plate, and image display device

A polymerizable liquid crystal composition having excellent solubility, used for formation of an optically anisotropic film having excellent durability. The polymerizable liquid crystal composition contains a polymerizable liquid crystal compound P1 represented by Formula (1): A-Ar-A, a polymerizable liquid crystal compound P2 represented by Formula (2): A-Ar-B, and a polymerizable liquid crystal compound P3 represented by Formula (3): B-Ar-B. In Formulae (1) and (2), A's represent predetermined side chains, all of which exhibit the same C log P value, and in Formulae (2) and (3), B's represent predetermined side chains, all of which exhibit the same C log P value. It should be noted that A and B represent side chains having C log P values different from each other, in which the C log P value of A is larger than the C log P value of B and the C log P value of at least one of A or B is 3.3 or more.

PEEKING PREVENTION SYSTEM, PEEKING PREVENTION METHOD, AND WINDOW MEMBER

A peeking prevention system has: a display device having, on a front surface of a display screen, a first polarization layer that has a first absorption axis parallel to a first direction; and a room partition that partitions a space in which a display is provided by the display device from a surrounding space, the room partition having a translucent part that makes it possible to see into the space, the translucent part including a transparent substrate and a second polarization layer that is positioned on the space side of the transparent substrate and that has a second absorption axis parallel to a second direction, wherein: the system furthermore has a phase contrast film that is positioned on the front surface of the first polarization layer; the phase contrast layer has a delay axis parallel to a third direction; and transparency is reduced when the display screen is viewed.

All-AROUND CURVED POLARIZER

An all-around curved polarizer for an all-around curved display device comprises a polarizing layer, a first protective layer and a second protective layer. The first protective layer is arranged on a side of the polarizing layer adjacent to the all-around curved display device and has a first coefficient of thermal expansion. The second protective layer is disposed on the other side of the polarizing layer opposite to the all-around curved display device, and has a second coefficient of thermal expansion, and the second coefficient of thermal expansion is greater than the first coefficient of thermal expansion of the first protective layer.

Head-up display
11474350 · 2022-10-18 · ·

A head-up display comprises an image-generating unit which is protected from damage caused by incident light from the outside, a corresponding mirror element, and a method for the manufacture of the head-up display. The head-up display comprises an image-generating unit, a deflection unit and a mirror unit. The deflection unit comprises a mirror element that comprises a spectrally partially reflecting layer, disposed on a substrate, on which an absorptive polarization layer is disposed.

Method for manufacturing resin thin film stripped pieces
11634636 · 2023-04-25 · ·

A method for producing flakes of a resin thin film including: a step (1) of forming a resin thin film on a substrate film to obtain a multilayer film; a step (2) of pressing the multilayer film by a member having a concavo-convex shape to form cracks in the resin thin film; and a step (3) of stripping the resin thin film from the substrate film to obtain flakes. The step (2) is preferably performed with a pressing pressure of 100 MPa or less. The resin thin film is preferably formed of a cured product of a photocurable liquid crystal composition. The resin thin film is preferably a cholesteric resin layer.

Liquid crystal display device, polarizer and protective film

The invention provides a liquid crystal display device, a polarizer, and a protective film that enable suppression of the occurrence of rainbow unevenness to improve visibility in a liquid crystal display device including a backlight light source comprising white-light-emitting diode having an emission spectrum that has one or more peak tops in each of the blue region (400 nm or more and less than 495 nm), the green region (495 nm or more and less than 600 nm), and the red region (600 nm or more and 780 nm or less). The protective film contains a polyethylene terephthalate-based resin film that has a retardation of 3000 to 30000 nm, wherein the CTF value of periodic unevenness of the x value of chromaticity at an observation angle of 55 degrees is 1.2 or less.

Touch display module, control method thereof and display device

A touch display module, a display device and a method for controlling the touch display module to display a predetermined color in a screen-off state are provided. The touch display module includes a display module, a touch module and a circular polarizer which are sequentially stacked. The touch module includes a substrate. A predetermined included angle exists between a direction of a first phase difference generated by ambient light irradiating the substrate and a direction of a second phase difference generated by the ambient light irradiating the circular polarizer, the predetermined included angle makes a sum of the first phase difference and the second phase difference a predetermined phase difference. In a screen-off state of the touch display module, when the ambient light enters the touch display module, the predetermined phase difference enables only light with a predetermined color to be reflected from the touch display module.

Light shielding film for head-up display (HUD) and HUD system for vehicle

Provided is a light shielding film for head-up display (HUD), the light shielding film including a plurality of light shielding materials configured to transmit a first directional light propagating from a view in front of a vehicle in a first direction and block at least a portion of a second directional light propagating from an external light source in a second direction that is opposite to a third direction in which light is output from a display panel for HUD included in the vehicle, at least one gradient of the plurality of light shielding materials corresponding to the first direction, and a transparent material that fills a space between the plurality of light shielding materials.

Electronic device for improving performance of sensor

An electronic device is provided. An electronic device includes a sensor, a display including a first surface and a second surface, a rear linear polarizer disposed at a front surface of the sensor module, a rear phase difference film disposed between a front surface of the rear linear polarizer and the second surface of the display, a front phase difference film disposed at the first surface of the display at a position corresponding to a location of the sensor, a front linear polarizer disposed at a front surface of the front phase difference film, and a front plate disposed at a front surface of the front linear polarizer.

LIGHT CONTROL FILM, METHOD FOR DRIVING LIGHT CONTROL FILM, LIGHT CONTROL MEMBER, AND VEHICLE

Provided is a light control film capable of gradually changing the in-plane transmittance and thereby adding an in-plane gradation between light and dark. A light control film 10 according to the present invention includes: a first electrode 22A and a second electrode 22B disposed facing each other; a light control material 14 disposed between the first electrode 22A and the second electrode 22B and changing the transmittance in accordance with the potential difference between the first electrode 22A and the second electrode 22B; and a potential gradient forming part for providing the gradient of the potential difference in the extension direction of the first electrode 22A and the second electrode 22B.