公开(公告)号：US20170315403A1

公开(公告)日：2017-11-02

申请号：US15358754

申请日：2016-11-22

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Tsuyoshi KASHIWAGI

IPC: G02F1/1335 ,  F21V8/00

CPC classification number: G02F1/1336 ,  G02B6/0045 ,  G02B6/005 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0055 ,  G02F1/133615 ,  G02F1/13362 ,  G02F2202/28

Abstract: Provided is an image source unit including a layer including a light transmissive portion and an in-between portion, which can improve the use efficiency of light from a light source and improve the quality of display, including a liquid crystal panel and an optical sheet arranged on a lower polarizing plate side from the liquid crystal panel, wherein: the optical sheet includes a base material layer, an optical functional layer, and an adhesive layer; the optical functional layer includes a plurality of light transmissive portions having one extending direction along a face of the base material layer having a predetermined cross section, arranged in a different direction from the extending direction at predetermined intervals, and a plurality of in-between portions formed in the intervals of the adjacent light transmissive portions; and the lower polarizing plate and the optical sheet are adhered to each other by the adhesive layer.

公开(公告)号：US20160109623A1

公开(公告)日：2016-04-21

申请号：US14984399

申请日：2015-12-30

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Tsuyoshi KASHIWAGI ,  Naoyuki MITSUYASU ,  Yuta SHINTAKU

IPC: G02B1/14 ,  G02B1/12 ,  G02B5/00

CPC classification number: G02B1/14 ,  G02B1/12 ,  G02B5/003 ,  G02B5/201 ,  G02B5/206 ,  G02B5/22

Abstract: The present invention provides a display device which can attain higher contrast than that of the conventional display device. The display device (1) comprises: an image light source (2); and an optical sheet (10) having a plurality of layers for controlling an incident light from the image light source and for outputting the light to the observer side, wherein the optical sheet comprises an optical functional sheet layer (12) in which light-transmissive portion(s) (13) configured to transmit light and light-absorbing portion(s) (14) configured to absorb light are alternately arranged along the sheet plane, and only one layer (11) or a plurality of layers of which refractive indices are substantially the same is(are) provided on the observer side of the optical functional sheet layer.

Abstract translation: 本发明提供一种可以获得比常规显示装置更高的对比度的显示装置。 显示装置（1）包括：图像光源（2）; 以及光学片（10），其具有用于控制来自所述图像光源的入射光并将光输出到所述观察者侧的多个层，其中，所述光学片包括光学功能片层（12），其中透光 被配置为透射被配置为吸收光的光的部分（13）沿着片材平面交替布置，并且只有一层（11）或多层折射率 在光学功能片层的观察者侧上基本相同。

公开(公告)号：US20230324735A1

公开(公告)日：2023-10-12

申请号：US18335214

申请日：2023-06-15

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： Tsuyoshi KASHIWAGI

IPC: G02F1/1335

CPC classification number: G02F1/133526 ,  G02F1/133562 ,  G02F1/133607 ,  G02B3/08

Abstract: To provide an optical sheet that makes it possible to efficiently control a light exiting angle as desired, an optical functional layer has a plurality of light transmissive portions extending in one direction, the light transmissive portions being arranged at intervals in a direction different from the one direction, and a light absorbing portion that is arranged between respective adjacent light transmissive portions, and the optical element layer extends so as to be offset from the one direction at an angle of 0° to 45° in a front view of the optical sheet, the optical element layer having a plurality of unit optical elements that are ridges aligned in a direction different from a direction in which the optical element layer extends.

公开(公告)号：US20230093069A1

公开(公告)日：2023-03-23

申请号：US17905263

申请日：2021-03-12

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： Tsuyoshi KASHIWAGI ,  Shinsuke NAKAZAWA ,  Takahiro TAKESHIMA

IPC: G02F1/1335 ,  H10K50/85

Abstract: A display device includes a display panel that emits light from a plurality of pixels arrayed at predetermined pixel array pitches and an optical film, placed over the display panel so as to allow passage of light from the plurality of pixels, that includes first and second optical functional parts differing in optical performance from each other. The first and second optical functional parts are arrayed at predetermined functional part array pitches. Assuming that p (μm) denotes the pixel array pitches, that q (μm) denotes the functional part array pitches, and that d (μm) denotes a distance in a face-to-face direction between surfaces of the pixels that face the optical film and a surface of the optical film that faces the pixels, q≤0.5p and tan(asin(0.7/q))

公开(公告)号：US20230046640A1

公开(公告)日：2023-02-16

申请号：US17758582

申请日：2021-01-13

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： Tsuyoshi KASHIWAGI ,  Takahiro TAKESHIMA

IPC: G02F1/1335 ,  H01L51/52

Abstract: An optical film includes a low-refractive-index layer that includes a plurality of lens portions, and a high-refractive-index layer that fills a space between the plurality of lens portions. The lens portions each have a columnar shape and have a flat portion at an end thereof, and are arranged two-dimensionally. Distances between portions of the lens portions satisfy the following equation: ((PA−((AIN+AEX)/2))×(PB−((BIN+BEX)/2)))/(PA×PB) is 0.42 or greater and 0.70 or less.

公开(公告)号：US20190310513A1

公开(公告)日：2019-10-10

申请号：US16385809

申请日：2019-04-16

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Tsuyoshi KASHIWAGI

IPC: G02F1/1335

Abstract: A laminate including: a base material layer, an optical functional layer, and a polarizing plate; wherein the optical functional layer includes a plurality of light transmissive portions extending in one direction along a face of the base material layer, and arrayed in a direction different from an extending direction thereof, and an in-between portion(s) formed in the intervals of adjacent light transmissive portions, an angle formed by an extending direction of the transmission axis of the polarizing plate, and the extending direction of the light transmissive portions is 1° to 41.7° in a front view, the base material layer is formed of polycarbonate, and the average coefficient of linear expansion or the average linear expansion of the laminate is within a predetermined range.

公开(公告)号：US20160238863A1

公开(公告)日：2016-08-18

申请号：US15041893

申请日：2016-02-11

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Tsuyoshi KASHIWAGI

IPC: G02F1/1335 ,  G02F1/1333

Abstract: An object is to provide an optical sheet that keeps efficiency of light utilization high or prevents something bad from occurring in a screen, while having a light blocking effect. Included are a substrate layer; and an optical function layer that is layered on the substrate layer, and has a plurality of light transmission parts which are arranged in a row so as to be light-transmissive, and light absorption parts that are arranged between adjacent ones of the light transmission parts so as to be light-absorptive. A cross-sectional area of each of the light transmission parts to a total cross-sectional area of one of the light transmission parts and one of the light absorption parts which are adjacent to each other is 78.2% to 88.5%, or optical diffuse reflectance of the optical sheet in a light output surface side is 1.9% to 3.5%.

Abstract translation: 本发明的目的是提供一种能够保持光利用效率高的光学片，或防止在屏幕中出现不良情况，同时具有遮光效果。 包括基底层; 以及光学功能层，其层叠在所述基板层上，并且具有多个透光部，所述多个透光部排列成透光性，并且配置在相邻的所述透光部之间的光吸收部 以便吸收光。 每个光透射部分的横截面积相对于彼此相邻的光透射部分和光吸收部分之一的总横截面面积为78.2％至88.5％，或光学漫反射率 在光输出面侧的光学片为1.9〜3.5％。

公开(公告)号：US20160103262A1

公开(公告)日：2016-04-14

申请号：US14972710

申请日：2015-12-17

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Tsuyoshi KASHIWAGI ,  Nobuo NAITO

IPC: F21V8/00

CPC classification number: G02B6/005 ,  G02B3/005 ,  G02B5/003 ,  G02B5/208 ,  G02B5/223 ,  G02B6/0038 ,  G02B6/0046 ,  G02B6/0053 ,  G02B6/0056 ,  G02B6/0058 ,  G02B6/0065

Abstract: Provided is an image source unit for improving use efficiency of the image light, including: a light source; and an optical sheet, the optical sheet including: a base material layer; an optical functional layer; and an adhesive layer, the optical functional layer including: light-transmissive portions arranged in parallel; and light-absorbing portions arranged between the light-transmissive portions, whose refractive index is set smaller than that of the light-transmissive portions, the light source side face of the light-transmissive portions includes unit light input control elements so that the elements project towards the light source side, the light-absorbing portions not being arranged between the unit light input control elements, the light source side face of the light-absorbing portions having a recess so that the bottom of the recess faces the opposite side from the light source, the adhesive layer is laminated on a light source side face of the optical functional layer.

Abstract translation: 提供了一种用于提高图像光的使用效率的图像源单元，包括：光源; 和光学片，所述光学片包括：基材层; 光学功能层; 和粘合剂层，所述光学功能层包括平行布置的透光部分; 以及设置在折射率设定为小于透光部的折射率的透光部之间的光吸收部，透光部的光源侧面包括单位光输入控制元件，使得元件投影 朝向光源侧的光吸收部不设置在单位光输入控制元件之间，光吸收部的光源侧面具有凹部，使得凹部的底部面向与光的相反侧 源，粘合剂层被层压在光学功能层的光源侧面上。