kde can not display chinese

zmhbupt

like the picture shows
I've emerged kde and kde-i18n
The two kind of fonts i like,simsun.ttc and simhei.ttf , were copied to /usr/X11R6/lib/X11/fonts/zh_CN/
and I have add That dirctory to my FontPath in XF86Config
take a look at the following result
MHz root # xlsfonts | grep simsun
-misc-simsun-medium-r-normal--0-0-0-0-p-0-gb2312.1980-0
-misc-simsun-medium-r-normal--0-0-0-0-p-0-iso10646-1
-misc-simsun-medium-r-normal--0-0-0-0-p-0-iso8859-1
-misc-simsun-medium-r-normal--0-0-0-0-p-0-jisx0208.1983-0
-misc-simsun-medium-r-normal--0-0-0-0-p-0-jisx0208.1990-0
-misc-simsun-medium-r-normal--0-0-0-0-p-0-koi8-r

are there any important progress about locale i have missed ?