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Surface light source device and liquid crystal display device, portable telephone and information terminal employing the surface light source device

机译:面光源装置和液晶显示装置,使用该面光源装置的便携式电话和信息终端

摘要

In a surface light source device using a so-called point light source, the luminance distribution is made uniform, and the luminance thereof is increased. The direction of each of a plurality of diffuse pattern elements 24a constituting a diffuse pattern 24 formed on the lower surface of an optical waveguide plate 22 (a direction along the length) is at an angle of approximately 90° to a direction along the line connecting the diffuse pattern element 24a and a point light source 30. The density &rgr; of the diffuse pattern elements is approximately zero in the vicinity of the point light source 30, while linearly increasing as the distance from the point light source 30 increases.
机译:在使用所谓的点光源的面光源装置中,使亮度分布均匀,并且提高亮度。构成形成在光波导板22的下表面上的漫射图案24的多个漫射图案元件24a中的每一个的方向(沿着长度的方向)成大约90°角。沿与连接扩散图案元件24a和点光源30的线的方向相同的密度。在点光源30附近,漫射图案元素的λ近似为零,而随着距点光源30的距离的增加而线性增加。

著录项

  • 公开/公告号US6167182A

    专利类型

  • 公开/公告日2000-12-26

    原文格式PDF

  • 申请/专利权人 OMRON CORPORATION;

    申请/专利号US19980091429

  • 发明设计人 SHIGERU AOYAMA;MASAYUKI SHINOHARA;

    申请日1998-06-25

  • 分类号G02B6/10;

  • 国家 US

  • 入库时间 2022-08-22 01:05:58

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