专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2009003183A Optical sheet, manufacturing method of optical sheet and back light unit 有权
标题翻译：光学片，光学片和背光单元的制造方法
公开(公告)号：JP2009003183A
公开(公告)日：2009-01-08
申请号：JP2007164122
申请日：2007-06-21
申请人： Keiwa Inc , 恵和株式会社
发明人： TSUCHIYA YOHEI , TSUJI TAKAHIRO
IPC分类号： G02B5/02 , G02F1/1335 , G02F1/13357
摘要： PROBLEM TO BE SOLVED: To provide an optical sheet which can constitute a backlight having a sufficient viewing angle and sufficient luminance as a backlight used for an on-vehicle liquid crystal display device. SOLUTION: The optical sheet 2 has the first surface 21, which has a shape where a lot of convex stripes 23 with a convex arc-shaped transverse cross section and a lot of concave stripes 24 with a concave arc-shaped transverse cross section are alternately arranged about in parallel with each other, and the second surface 22 which is a non-smooth surface. In the convex stripe 23, a radius of curvature of the convex arc-shaped transverse cross section is 10 μm to 30 μm. In the concave stripe 24, the radius of curvature of the concave arc-shaped transverse cross section is 10 μm to 30 μm. The non-smooth surface has surface roughness where an arithmetic mean roughness (Ra) is 0.5 μm to 2 μm and a maximum height roughness (Rz) is 5 μm to 30 μm. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够构成具有足够的视角和足够亮度的背光的光学片作为用于车载液晶显示装置的背光。解决方案：光学片2具有第一表面21，其具有许多具有凸弧形横截面的凸条23和具有凹弧形横向横截面的大量凹条24的形状交替地彼此平行地布置，第二表面22是非平滑表面。在凸条23中，凸弧形横截面的曲率半径为10μm〜30μm。在凹条24中，凹弧形横截面的曲率半径为10μm〜30μm。非光滑表面具有算术平均粗糙度（Ra）为0.5μm〜2μm，最大高度粗糙度（Rz）为5μm〜30μm的表面粗糙度。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2008145890A Liquid crystal display module 审中-公开
标题翻译：液晶显示模块
公开(公告)号：JP2008145890A
公开(公告)日：2008-06-26
申请号：JP2006335112
申请日：2006-12-12
申请人： Keiwa Inc , 恵和株式会社
发明人： TSUCHIYA YOHEI
IPC分类号： G02F1/1335 , F21S2/00 , F21Y103/00 , G02B5/02 , G02F1/13357
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal display module having a near-infrared ray absorption function and suppressing ejection of the near-infrared ray and reduction of a function of luminance or the like.
SOLUTION: The liquid crystal display module having a liquid crystal display element wherein a liquid crystal cell is interposed between a pair of polarizing plates, an optical sheet stacked on the backside of the liquid crystal display element and a backlight of a surface light source stacked on the backside of the optical sheet includes a light diffusion sheet stacked on the surface side of the backlight. The light diffusion sheet has a transparent base material layer and a light diffusion layer layered on the surface side thereof, contains a near-infrared ray absorbing agent and has ≤50% transmittance of the near-infrared ray. The light diffusion sheet is preferably stacked on the backside of the liquid crystal display element (between the liquid crystal display element and a reflective polarizing plate). The light diffusion sheet may contain the near-infrared ray absorbing agent in the base material layer and the like and may have a near-infrared ray absorbing layer containing the near-infrared ray absorbing agent.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决问题：提供具有近红外线吸收功能的液晶显示模块，抑制近红外线的射出，降低亮度等的功能。解决方案：具有液晶显示元件的液晶显示模块，其中液晶单元插入在一对偏振片之间，叠置在液晶显示元件背面的光学片和表面光的背光堆叠在光学片的背面上的光源包括堆叠在背光的表面侧的光漫射片。光漫射片具有透明基材层和在其表面侧层叠的光漫射层，其包含近红外线吸收剂，并且近红外线的透射率≤50％。光扩散片优选层叠在液晶显示元件的背面（液晶显示元件与反射型偏振片之间）。光扩散片可以在基材层等中含有近红外线吸收剂，也可以含有含有近红外线吸收剂的近红外线吸收层。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2008145883A Light diffusion sheet for liquid crystal display device 有权
标题翻译：液晶显示装置的光扩散片
公开(公告)号：JP2008145883A
公开(公告)日：2008-06-26
申请号：JP2006335044
申请日：2006-12-12
申请人： Keiwa Inc , 恵和株式会社
发明人： TSUCHIYA YOHEI
IPC分类号： G02B5/02 , G02B5/22 , G02F1/1335 , G02F1/13357
摘要： PROBLEM TO BE SOLVED: To provide a light diffusion sheet for a liquid crystal display device which has both a light diffusion function and a near-infrared light absorption function and which can suppress emission of near-infrared light from the liquid crystal display device and a deterioration in performances such as luminance of the liquid crystal display device.
SOLUTION: The light diffusion sheet for the liquid crystal display device is equipped with a transparent base material layer and a light diffusion layer layered on a surface side of the base material layer and contains a near-infrared light absorbent and has a near-infrared light transmittance of 50% or less. Preferably a sticking prevention layer comprising beads dispersed in a binder is provided on a rear surface side of the base material layer. Preferably the near-infrared light absorbent is contained in the base material layer, the light diffusion layer and/or the sticking prevention layer. A near-infrared light absorption layer containing the near-infrared light absorbent can be provided. Preferably visible light transmittance is 50% or more and all light transmittance is 50% or more. Preferably a retardation value of the base material layer is 50 nm or less.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供一种具有光扩散功能和近红外光吸收功能并能够抑制来自液晶显示器的近红外光的发射的液晶显示装置用光扩散片装置和液晶显示装置的亮度等性能的劣化。解决方案：用于液晶显示装置的光扩散片配备有透明基材层和层叠在基材层的表面侧的光扩散层，并且包含近红外光吸收剂，并且具有近 - 红外光透射率在50％以下。优选地，在基材层的背面侧设置包含分散在粘合剂中的珠粒的防粘着层。优选地，近红外光吸收剂包含在基材层，光扩散层和/或防粘层中。可以提供含有近红外光吸收剂的近红外光吸收层。优选可见光透射率为50％以上，全透光率为50％以上。优选地，基材层的延迟值为50nm以下。版权所有（C）2008，JPO＆INPIT

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式