Toray Industries, Inc.

Takayuki Uto

Wataru Gouda

Yuji Matsuo

Syunichi Osada

Takahito Sakai

Wataru Goda

Miyu Shiraishi

Yoshihiro Masuda

Jun Sakamoto

Hiroji Kojima

Masaaki Umehara

Kazuyoshi Ota

Shohei Yoshida

Shin Hirose

A head-up display (HUD) system is described that makes it less possible that coloring is visually recognized on a windshield even with sunglasses worn, wherein the head-up display system includes an image projector configured to project an image; and a resin film configured such that the image from the image projector is projected on the resin film, wherein the resin film is a reflective plane, and is disposed in such a manner that the incidence plane where the maximum of the absolute value of a* and the maximum of the absolute value of b* satisfy the following formulae (1) and (2) is at 90±10° to a horizontal plane.Maximum of absolute value of*≤30  (1)Maximum of absolute value of*≤30  (2)

Head-up display system

Embodiments disclose an optical material having a visual confirmation effect due to higher directivity of light reflection than a conventional optical material. Embodiments can include a laminate having a multilayer laminated film in which 11 or more layers of different thermoplastic resins are alternately laminated. With respect to light in a wavelength range of 400 to 700 nm and that is perpendicularly incident on an outer surface of the multilayer laminated film, the laminate has an average transmittance in the above wavelength range of 50% or more. When average reflectances in a wavelength range of 400 to 700 nm with respect to S-wave light in the wavelength range, incident at angles of 20° and 70° with respect to the normal line of the outer surface of the film at azimuths ϕn (n: 1 to 5), are given as Rs20(ϕn) and Rs70(ϕn), respectively, the laminate satisfies, at least one azimuth ϕn:Rs70(ϕn)−Rs20(ϕn)≥50(%).

Laminated body and manufacturing method thereof, light guide plate unit, light source unit, display device, projection image display member, projection image display device, and display screen filter

The present invention provides a laminate film and a display member including the laminate film, which are excellent in visibility of external information such as scenery and displayability of information from a projection member, and are also excellent in color tone reproducibility. The laminate film includes a laminate of 50 or more alternately arranged layers of a plurality of different thermoplastic resins, the laminate film having a transmittance of light incident perpendicularly to a film surface of 50% or more, the laminate film satisfying a relationship of R20&#x2264;R40&#x3c;R70, wherein R20, R40, and R70 are reflectances of a P-wave incident at angles of 20&#xb0;, 40&#xb0;, and 70&#xb0;, respectively, to the normal to the film surface, the reflectance of R70 being 30% or more, reflected light of the P-wave incident at 70&#xb0; to the normal to the film surface having a saturation of 20 or less.

Layered film and display device

The present invention provides a light source unit capable of displaying an image of a desired color without causing color unevenness when mounted on a display. A light source unit including: a light source; a color conversion member that converts incident light incident from the light source into light having a longer wavelength than the incident light does; and a reflective film that is present between the light source and the color conversion member, transmits light incident from the light source, and reflects light exited from the color conversion member, wherein in the reflective film, the scattering angle (R2&#x2212;R1) on at least one film surface is 5&#xb0; or more, where the scattering angle is obtained from angles R1 and R2 (R1&#x3c;R2) at which the transmitted light intensity is Tmax(0)/100 relative to the maximum transmitted light intensity of halogen light incident perpendicularly to the film surface of Tmax(0).

Light source unit

A light source unit includes: a light source; a color conversion film containing an organic luminous material that converts incident light made incident from the light source into light with a longer wavelength than that of the incident light; and a laminated film comprising a constitution in which 11 or more layers of different thermoplastic resins are alternately laminated with each other.

Light source unit, laminated member, and display and lighting apparatus including them

A light source unit is provided which makes an excellent contrast between the black display portions and the white display portions if mounted on a display, while having a high frontal luminance. The light source unit includes: a light source; a color conversion material that converts incident light from the light source into light having a longer wavelength than the incident light; and a reflective film that exists between the light source and the color conversion material and that transmits light from the light source incident perpendicularly on the film surface and reflects light from the color conversion material incident perpendicularly on the film surface; wherein the P-Polarized light of the light incident from the light source on the reflective film surface at an angle of 20&#xb0;, 40&#xb0;, and 60&#xb0; is reflected at a reflectance of R20(%), R40(%), and R60(%) respectively, which satisfy R20&#x3c;R40&#x3c;R60.

[Problem] Provided is a laminated film which exhibits good general adhesiveness to PVAs, EVAs and PVBs having a wide range of saponification degrees as well as good moist heat-resistant adhesiveness. [Means for Solution] The laminated film comprises a resin layer (&#x3b1;) composed of an aliphatic urethane structure-containing resin composition (I) on at least one side of a thermoplastic resin film, the resin layer (&#x3b1;) satisfying the following properties (i) and (ii): (i) the resin layer (&#x3b1;) has a surface free energy (sum of the dispersion force and the polar force) of not less than 30 mN/m and not greater than 45 mN/m; and (ii) the resin layer (&#x3b1;) has a polar force of not less than 5.0 mN/m and not greater than 15.0 mN/m.

Laminated film

A multi-layer laminated film includes layers composed using a thermoplastic resin A and layers composed using a thermoplastic resin B, which A layers and B layers are alternately laminated in 51 or more layers, wherein the film has: a heat shrinkage stress of 0.5 MPa to 5 MPa at 150&#xb0; C. in the longitudinal and width directions of the film; and a heat shrinkage stress kick-off temperature of 110&#xb0; C. or lower in at least one of the longitudinal and width directions of the film.

Multi-layer laminated film

A multilayer film includes 50 or more layers of each of two or more thermoplastic resins having different optical properties are alternately laminated with each other, wherein the average reflectance in a wavelength range of 900 to 1,200 nm is 70% or higher; both of the differences between the a* values (&#x394;a*) and between the b* values (&#x394;b*), respectively, of transmitted light incoming at an angle of 12&#xb0; and of transmitted light incoming at an angle of 45&#xb0; are 10 or less; and the multilayer film comprises a bandwidth of not less than 50 nm where the transmittance is 80% or lower in a wavelength range of 400 to 800 nm.

Laminate film and automotive window glass using same

An extrusion die for laminating at least two kinds of resins in the width direction is provided. The extrusion die has not less than 10 nozzles arranged in the width direction and not less than 10 holes such that the holes surround each of the arranged nozzles, or alternatively, the extrusion die has not less than 10 holes arranged in the width direction.

Extrusion die for laminating film

A width-direction multilayer laminated film having a large area and uniform optical properties is provided. A light guide, a light diffusion film, a light collecting film, a viewing angle control film, and an optical waveguide film, which are low cost and have excellent optical properties, as well as an illuminating device, a communication device, and a display using these films. The laminated film may include at least a structure in which a layer made of resin A (layer A) and a layer made of resin B (layer B) are alternately laminated in the width direction, wherein the width of the film is 400 mm or more and the number of layer Bs, each having a cross-sectional width from 0.1 &#x3bc;m to 10,000 &#x3bc;m, is 10 or larger.

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Otsu, Japan

Takayuki Uto