发明名称 LIQUID CRYSTAL DISPLAY AND ELECTRONIC DEVICE
摘要 <P>PROBLEM TO BE SOLVED: To suppress loose black color images in the oblique direction when using a circular polarizer. <P>SOLUTION: Each of the upper and lower circular polarizers provided in the liquid crystal display of this invention has 1/4 wavelength plates 16, 26 and linear polarizer plates 17, 27 respectively, and a birefringent element 28 is formed between the 1/4 wavelength plate 26 and the linear polarizer plate 27 constituting one of the circular polarizers. Further, nz>nx or nz>ny is satisfied when nx and ny represent the refractive indexes of this birefringent element 28 in the azimuth perpendicularly crossing each other in its plane, and nz the refractive index in its thickness direction. <P>COPYRIGHT: (C)2006,JPO&NCIPI
申请公布号 JP2005300736(A) 申请公布日期 2005.10.27
申请号 JP20040114120 申请日期 2004.04.08
申请人 SEIKO EPSON CORP 发明人 MATSUSHIMA TOSHIHARU
分类号 G02B5/30;G02F1/13;G02F1/1335;G02F1/13363;G09F9/35 主分类号 G02B5/30
代理机构 代理人
主权项
地址
您可能感兴趣的专利