摘要:
The liquid crystal display device includes a liquid crystal cell, a backlight device, a first light diffusing layer, a first polarizer, and a second light diffusing layer. The first light diffusing layer includes a light diffusing plate and a prism sheet, and has light distribution characteristics such that a luminance value in a direction of 70 degrees with respect to a normal of a light incidence plane of the liquid crystal cell is 20% or less with respect to a luminance value in a direction of the normal. The second light diffusing layer includes a second polarizer and a light diffusing membrane. The backlight device is divided into a plurality of regions and is capable of controlling luminance per region.
摘要:
There is provided a light diffuser plate with a light-collecting layer, which is sufficiently prevented from flawing and which is used to make it possible to sufficiently ensure a luminance in a forward direction.A light diffuser plate 3 with a light-collecting layer, according to the present invention, comprises a light-diffusing substrate 31 and a light-collecting sheet 32, which are disposed to be superposed on each other, and is wherein the light-diffusing substrate 31 and the light-collecting sheet 32 are jointed to each other by joint portions 34 which are so disposed as to be scattered over a whole plane of the light diffuser plate, and wherein an air layer 33 exists between the light-diffusing substrate 31 and the light-collecting sheet 32, in an area other than the joint portions 34.
摘要:
An optical path unit and a liquid crystal display device excellent in luminance in the front direction are provided. A backlight unit 2, two prism films 4a and 4b, a first polarizing plate 5, a liquid crystal cell 1 having a liquid crystal layer between a pair of substrates, and a second polarizing plate 6 are disposed in the sequence. The prism films 4a and 4b are provided with a plurality of linear prisms in parallel on a light incident surface, the linear prisms having a polygonal and tapered cross section and an endmost vertex angle of 90° to 110°. The first polarizing plate 5 and the second polarizing plate 6 are disposed such that transmission axes thereof have a crossed Nicols relationship. The prism film 4a is disposed such that the ridge lines of the linear prisms are substantially in parallel with the transmission axis of the first polarizing plate 5, and the prism film 4b is disposed such that the ridge lines of the linear prisms are substantially in parallel with the transmission axis of the second polarizing plate 6.
摘要:
The present invention provides a brightness enhancement film-laminated light diffuser plate which can sufficiently prevent scratching, and also can ensure sufficient brightness. The brightness enhancement film-laminated light diffuser plate of the present invention includes a brightness enhancement film 41, and a light diffuser plate 31 comprising a transparent material and a light diffusing agent dispersed in the transparent material, and having a rough surface having a ten-point average roughness (Rz) of more than 40˜m and 100˜m or less on at least one surface, wherein the brightness enhancement film 41 is laminated and integrated on the rough surface 31a of the light diffuser plate via an adhesive layer 40.
摘要:
A white surface light source comprising a light diffuser plate and a light source provided on the back side of the light diffuser plate, wherein the light source comprises at lease one LED element which emits lights including a red color, and the light diffuser plate comprises a transparent material and light diffusing particles dispersed in the transparent material, and wherein an absolute value An of a refractive index difference between the transparent material and the light diffusing particles, and a 50% cumulative particle diameter D50 (μm) of the light diffusing particles satisfy the relationship: 0.25
摘要:
The present invention provides a light diffuser plate, the surface of which is less likely to be scratched, capable of laminating a film base material (3) with a high lamination strength.The light diffuser plate (1) of the present invention includes a transparent material and a light diffusing agent dispersed in the transparent material, wherein one or both surfaces are rough surfaces (1a) having a ten-point average roughness (Rz) of 20 to 40 μm. A film-laminated light diffuser plate (4) can be obtained by laminating an adhesive film (5) comprising the film base material (3) and an adhesive layer (2) formed on at least one surface of the film base material on the rough surface.
摘要:
An optical path unit and a liquid crystal display device excellent in luminance in the front direction are provided. A backlight unit 2, two prism films 4a and 4b, a first polarizing plate 5, a liquid crystal cell 1 having a liquid crystal layer between a pair of substrates, and a second polarizing plate 6 are disposed in the sequence. The prism films 4a and 4b are provided with a plurality of linear prisms in parallel on a light incident surface, the linear prisms having a polygonal and tapered cross section and an endmost vertex angle of 90° to 110°. The first polarizing plate 5 and the second polarizing plate 6 are disposed such that transmission axes thereof have a crossed Nicols relationship. The prism film 4a is disposed such that the ridge lines of the linear prisms are substantially in parallel with the transmission axis of the first polarizing plate 5, and the prism film 4b is disposed such that the ridge lines of the linear prisms are substantially in parallel with the transmission axis of the second polarizing plate 6.
摘要:
The present invention relates to a light-diffuser-plate-with-primer-layer, which permits lamination of an optical film or the like thereon with a sufficient bonding strength, and a process for producing the same efficiently and at a lower cost.
摘要:
The present invention provides a transmission type display apparatus (4) capable of maintaining uniform and high luminance with a smaller number of light sources (21, 22, . . . ).The transmission type display apparatus (4) of the present invention comprises a transmission type liquid crystal display panel (5) and a surface emission light source device (1) that illuminates the transmission type liquid crystal display panel (5) with illuminating light (F1) from behind thereof, wherein the surface emission light source device emits collimated light (F1) toward the front side in the normal direction (a) over the entire surface, and a light diffusing part (7) is disposed on the front side of the transmission type liquid crystal display panel (5) for transmitting incident light (F2), that enters on the back surface thereof, while diffusing the light (F2) isotropically.
摘要:
The present invention provides a light diffuser plate capable of emitting light with high uniformity in luminance.A light diffuser plate 3 of the present invention has a relief structure section 4 consisting of a plurality of triangular ridges having a triangular cross section disposed on at least one side thereof, wherein the relief structure section 4 comprises first triangular ridges 6 of an isosceles triangular shape having a vertex angle α of 50 to 70 degrees and second triangular ridges 8 of an isosceles triangular shape having a vertex angle β of 110 to 130 degrees.