pic can not display on android released

I made a game without NGUI/UGUI/2Dtoolkits, and I encounted a problem, it is everything ok when I release on PC, but when I release on android, some of the pic can not display. why?

1、I doubt whether the problem of camera setting? and my camera configuration is following:

2、I doubt whether the problem of shader? All of my pic's shader is using "Particles/Alpha Blended". The background pic is use this shader, displayed on the PC or the android is normal, but some elements of the pic(also use this shader), on the PC can display normal, but on the android, it is missing!